From df1f1d1cb43b4ffdef5ba5f0623e2f73e94ce030 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 22 May 2010 10:22:49 +0200 Subject: drivers/mtd: Use memdup_user Use memdup_user when user data is immediately copied into the allocated region. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // @@ expression from,to,size,flag; position p; identifier l1,l2; @@ - to = \(kmalloc@p\|kzalloc@p\)(size,flag); + to = memdup_user(from,size); if ( - to==NULL + IS_ERR(to) || ...) { <+... when != goto l1; - -ENOMEM + PTR_ERR(to) ...+> } - if (copy_from_user(to, from, size) != 0) { - <+... when != goto l2; - -EFAULT - ...+> - } // Signed-off-by: Julia Lawall Signed-off-by: David Woodhouse --- drivers/mtd/mtdchar.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 8bb5e4a..8b223c0 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -404,14 +404,9 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd, if (ops.ooboffs && ops.ooblen > (mtd->oobsize - ops.ooboffs)) return -EINVAL; - ops.oobbuf = kmalloc(length, GFP_KERNEL); - if (!ops.oobbuf) - return -ENOMEM; - - if (copy_from_user(ops.oobbuf, ptr, length)) { - kfree(ops.oobbuf); - return -EFAULT; - } + ops.oobbuf = memdup_user(ptr, length); + if (IS_ERR(ops.oobbuf)) + return PTR_ERR(ops.oobbuf); start &= ~((uint64_t)mtd->oobsize - 1); ret = mtd->write_oob(mtd, start, &ops); -- cgit v1.1 From cc1fed00c9ba84f38717a6cab84409cd48f340e3 Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Wed, 2 Jun 2010 16:01:45 +0300 Subject: mtd/r852: register IRQ as last step Otherwise, if it fires right away, it might access uninitialized spinlock Signed-off-by: Maxim Levitsky Signed-off-by: David Woodhouse --- drivers/mtd/nand/r852.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c index 78a4232..20a654a 100644 --- a/drivers/mtd/nand/r852.c +++ b/drivers/mtd/nand/r852.c @@ -940,18 +940,19 @@ int r852_probe(struct pci_dev *pci_dev, const struct pci_device_id *id) r852_dma_test(dev); + dev->irq = pci_dev->irq; + spin_lock_init(&dev->irqlock); + + dev->card_detected = 0; + r852_card_update_present(dev); + /*register irq handler*/ error = -ENODEV; if (request_irq(pci_dev->irq, &r852_irq, IRQF_SHARED, DRV_NAME, dev)) goto error10; - dev->irq = pci_dev->irq; - spin_lock_init(&dev->irqlock); - /* kick initial present test */ - dev->card_detected = 0; - r852_card_update_present(dev); queue_delayed_work(dev->card_workqueue, &dev->card_detect_work, 0); -- cgit v1.1 From 9489be8ca234c07666e88a4472e4d5f2a2425aa5 Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Wed, 2 Jun 2010 16:01:46 +0300 Subject: mtd/r852: Fixes in case of DMA timeout * Don't call complete on dma completion * do a INIT_COMPLETE before using it each time * Report DMA read error via ecc 'correct' I finally managed to make my system do suspend to ram propertly, and I see that if card was inserted during suspend (while system was off), I get dma timeouts on resume. Simple card reinsert solves the issue. This patch solves a crash that would happen otherwise Signed-off-by: Maxim Levitsky Signed-off-by: David Woodhouse --- drivers/mtd/nand/r852.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c index 20a654a..3f219e6 100644 --- a/drivers/mtd/nand/r852.c +++ b/drivers/mtd/nand/r852.c @@ -150,7 +150,6 @@ static void r852_dma_done(struct r852_device *dev, int error) if (dev->phys_dma_addr && dev->phys_dma_addr != dev->phys_bounce_buffer) pci_unmap_single(dev->pci_dev, dev->phys_dma_addr, R852_DMA_LEN, dev->dma_dir ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE); - complete(&dev->dma_done); } /* @@ -182,6 +181,7 @@ static void r852_do_dma(struct r852_device *dev, uint8_t *buf, int do_read) /* Set dma direction */ dev->dma_dir = do_read; dev->dma_stage = 1; + INIT_COMPLETION(dev->dma_done); dbg_verbose("doing dma %s ", do_read ? "read" : "write"); @@ -494,6 +494,11 @@ int r852_ecc_correct(struct mtd_info *mtd, uint8_t *dat, if (dev->card_unstable) return 0; + if (dev->dma_error) { + dev->dma_error = 0; + return -1; + } + r852_write_reg(dev, R852_CTL, dev->ctlreg | R852_CTL_ECC_ACCESS); ecc_reg = r852_read_reg_dword(dev, R852_DATALINE); r852_write_reg(dev, R852_CTL, dev->ctlreg); @@ -796,6 +801,7 @@ static irqreturn_t r852_irq(int irq, void *data) if (dma_status & R852_DMA_IRQ_ERROR) { dbg("recieved dma error IRQ"); r852_dma_done(dev, -EIO); + complete(&dev->dma_done); goto out; } @@ -825,8 +831,10 @@ static irqreturn_t r852_irq(int irq, void *data) r852_dma_enable(dev); /* Operation done */ - if (dev->dma_stage == 3) + if (dev->dma_stage == 3) { r852_dma_done(dev, 0); + complete(&dev->dma_done); + } goto out; } @@ -1082,7 +1090,7 @@ int r852_resume(struct device *device) dev->card_detected ? "added" : "removed"); queue_delayed_work(dev->card_workqueue, - &dev->card_detect_work, 1000); + &dev->card_detect_work, msecs_to_jiffies(1000)); return 0; } -- cgit v1.1 From ac373f7e2286ed3690e8a93ebf9f6f1ae0c7d4a9 Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Wed, 2 Jun 2010 16:01:47 +0300 Subject: mtd/r852: update card detect early. This turns out to be the reason for DMA timeouts on resume, if card was inserted while system was suspended Signed-off-by: Maxim Levitsky Signed-off-by: David Woodhouse --- drivers/mtd/nand/r852.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c index 3f219e6..bcfc851 100644 --- a/drivers/mtd/nand/r852.c +++ b/drivers/mtd/nand/r852.c @@ -712,6 +712,7 @@ void r852_card_detect_work(struct work_struct *work) container_of(work, struct r852_device, card_detect_work.work); r852_card_update_present(dev); + r852_update_card_detect(dev); dev->card_unstable = 0; /* False alarm */ @@ -727,7 +728,6 @@ void r852_card_detect_work(struct work_struct *work) else r852_unregister_nand_device(dev); exit: - /* Update detection logic */ r852_update_card_detect(dev); } -- cgit v1.1 From 10389536742cefbedecb67a5b2906f155cf3a1c3 Mon Sep 17 00:00:00 2001 From: Stefan Richter Date: Sun, 30 May 2010 19:43:52 +0200 Subject: firewire: core: check for 1394a compliant IRM, fix inaccessibility of Sony camcorder Per IEEE 1394 clause 8.4.2.3, a contender for the IRM role shall check whether the current IRM complies to 1394a-2000 or later. If not force a compliant node (e.g. itself) to become IRM. This was implemented in the older ieee1394 driver but not yet in firewire-core. An older Sony camcorder (Sony DCR-TRV25) which implements 1394-1995 IRM but neither 1394a-2000 IRM nor BM was now found to cause an interoperability bug: - Camcorder becomes root node when plugged in, hence gets IRM role. - firewire-core successfully contends for BM role, proceeds to perform gap count optimization and resets the bus. - Sony camcorder ignores presence of a BM (against the spec, this is a firmware bug), performs its idea of gap count optimization and resets the bus. - Preceding two steps are repeated endlessly, bus never settles, regular I/O is practically impossible. http://thread.gmane.org/gmane.linux.kernel.firewire.user/3913 This is an interoperability regression from the old to the new drivers. Fix it indirectly by adding the 1394a IRM check. The spec suggests three and a half methods to determine 1394a compliance of a remote IRM; we choose the method of testing the Config_ROM.Bus_Info.generation field. This is data that firewire-core should have readily available at this point, i.e. does not require extra I/O. Reported-by: Clemens Ladisch (missing 1394a check) Reported-by: H. S. (issue with Sony DCR-TRV25) Tested-by: H. S. Cc: # .32.x and newer Signed-off-by: Stefan Richter --- drivers/firewire/core-card.c | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c index 9dcb304..371713f 100644 --- a/drivers/firewire/core-card.c +++ b/drivers/firewire/core-card.c @@ -231,7 +231,7 @@ void fw_schedule_bm_work(struct fw_card *card, unsigned long delay) static void fw_card_bm_work(struct work_struct *work) { struct fw_card *card = container_of(work, struct fw_card, work.work); - struct fw_device *root_device; + struct fw_device *root_device, *irm_device; struct fw_node *root_node; unsigned long flags; int root_id, new_root_id, irm_id, local_id; @@ -239,6 +239,7 @@ static void fw_card_bm_work(struct work_struct *work) bool do_reset = false; bool root_device_is_running; bool root_device_is_cmc; + bool irm_is_1394_1995_only; spin_lock_irqsave(&card->lock, flags); @@ -248,12 +249,18 @@ static void fw_card_bm_work(struct work_struct *work) } generation = card->generation; + root_node = card->root_node; fw_node_get(root_node); root_device = root_node->data; root_device_is_running = root_device && atomic_read(&root_device->state) == FW_DEVICE_RUNNING; root_device_is_cmc = root_device && root_device->cmc; + + irm_device = card->irm_node->data; + irm_is_1394_1995_only = irm_device && irm_device->config_rom && + (irm_device->config_rom[2] & 0x000000f0) == 0; + root_id = root_node->node_id; irm_id = card->irm_node->node_id; local_id = card->local_node->node_id; @@ -276,8 +283,15 @@ static void fw_card_bm_work(struct work_struct *work) if (!card->irm_node->link_on) { new_root_id = local_id; - fw_notify("IRM has link off, making local node (%02x) root.\n", - new_root_id); + fw_notify("%s, making local node (%02x) root.\n", + "IRM has link off", new_root_id); + goto pick_me; + } + + if (irm_is_1394_1995_only) { + new_root_id = local_id; + fw_notify("%s, making local node (%02x) root.\n", + "IRM is not 1394a compliant", new_root_id); goto pick_me; } @@ -316,8 +330,8 @@ static void fw_card_bm_work(struct work_struct *work) * root, and thus, IRM. */ new_root_id = local_id; - fw_notify("BM lock failed, making local node (%02x) root.\n", - new_root_id); + fw_notify("%s, making local node (%02x) root.\n", + "BM lock failed", new_root_id); goto pick_me; } } else if (card->bm_generation != generation) { -- cgit v1.1 From 0d7168bcf45fa5b6307726091ea77fd4ab16d1ab Mon Sep 17 00:00:00 2001 From: Carl Worth Date: Mon, 17 May 2010 09:46:05 -0700 Subject: Revert "drm/i915: Don't enable pipe/plane/VCO early (wait for DPMS on)." This reverts commit cfecde435dda78248d6fcdc424bed68d5db6be0b. The commit was first created as an attempt to fix LVDS initialiazation on Ironlake. Testing revealed that it didn't fix that, but it was assumed to still be correct anyway. Subsequent testing has revealed that this commit has caused other regressions: * Change in VBlank interrupt frequency causing 60% 3D performance regression http://bugs.freedesktop.org/show_bug.cgi?id=27698 * Black screen on G45 http://bugs.freedesktop.org/show_bug.cgi?id=27733 So revert this buggy code for now to revisit later when we can fix actual bugs without causing these regressions. Signed-off-by: Carl Worth Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_display.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 88a1ab7..b40155f 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3653,6 +3653,11 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, pipeconf &= ~PIPEACONF_DOUBLE_WIDE; } + dspcntr |= DISPLAY_PLANE_ENABLE; + pipeconf |= PIPEACONF_ENABLE; + dpll |= DPLL_VCO_ENABLE; + + /* Disable the panel fitter if it was on our pipe */ if (!HAS_PCH_SPLIT(dev) && intel_panel_fitter_pipe(dev) == pipe) I915_WRITE(PFIT_CONTROL, 0); -- cgit v1.1 From 382fe70fddf54114802c935264f1d5baf8d3d174 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 2 Jun 2010 08:41:44 +0100 Subject: drm/i915: Move non-phys cursors into the GTT MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cursors need to be in the GTT domain when being accessed by the GPU. Previously this was a fortuitous byproduct of userspace using pwrite() to upload the image data into the cursor. The redundant clflush was removed in commit 9b8c4a and so the image was no longer being flushed out of the caches into main memory. One could also devise a scenario where the cursor was rendered by the GPU, prior to being attached as the cursor, resulting in similar corruption due to the missing MI_FLUSH. Fixes: Bug 28335 - Cursor corruption caused by commit 9b8c4a0b21 https://bugs.freedesktop.org/show_bug.cgi?id=28335 Signed-off-by: Chris Wilson Tested-by: Arkadiusz Miśkiewicz Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_display.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index b40155f..a8d65b7 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3978,6 +3978,13 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc, DRM_ERROR("failed to pin cursor bo\n"); goto fail_locked; } + + ret = i915_gem_object_set_to_gtt_domain(bo, 0); + if (ret) { + DRM_ERROR("failed to move cursor bo into the GTT\n"); + goto fail_unpin; + } + addr = obj_priv->gtt_offset; } else { ret = i915_gem_attach_phys_object(dev, bo, (pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1); @@ -4021,6 +4028,8 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc, intel_crtc->cursor_bo = bo; return 0; +fail_unpin: + i915_gem_object_unpin(bo); fail_locked: mutex_unlock(&dev->struct_mutex); fail: -- cgit v1.1 From 5869d2c387e75814334697c9d702d91b7c63a308 Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Wed, 2 Jun 2010 18:22:48 +0300 Subject: mtd: Fix NAND submenu Move MTD_NAND_ECC and MTD_NAND_ECC_SMC above NAND memuconfig, to unbreak display in xconfig. This shouldn't change any dependencies. Signed-off-by: Maxim Levitsky Signed-off-by: David Woodhouse --- drivers/mtd/nand/Kconfig | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 98a04b3..ffc3720 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -1,13 +1,3 @@ -menuconfig MTD_NAND - tristate "NAND Device Support" - depends on MTD - select MTD_NAND_IDS - select MTD_NAND_ECC - help - This enables support for accessing all type of NAND flash - devices. For further information see - . - config MTD_NAND_ECC tristate @@ -19,6 +9,17 @@ config MTD_NAND_ECC_SMC Software ECC according to the Smart Media Specification. The original Linux implementation had byte 0 and 1 swapped. + +menuconfig MTD_NAND + tristate "NAND Device Support" + depends on MTD + select MTD_NAND_IDS + select MTD_NAND_ECC + help + This enables support for accessing all type of NAND flash + devices. For further information see + . + if MTD_NAND config MTD_NAND_VERIFY_WRITE -- cgit v1.1 From 8aa4b14eb023fecaa48d55402e98bdf84b375c4a Mon Sep 17 00:00:00 2001 From: Chen Gong Date: Sun, 30 May 2010 11:37:08 +0800 Subject: ACPI: acpi_pad: Don't needlessly mark LAPIC unstable As suggested in Venki's suggestion in the commit 0dc698b, add LAPIC unstable detection in the acpi_pad drvier too. Signed-off-by: Chen Gong Signed-off-by: Len Brown --- drivers/acpi/acpi_pad.c | 36 ++++++++++++++++++++++++------------ 1 file changed, 24 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c index d269a8f..446aced 100644 --- a/drivers/acpi/acpi_pad.c +++ b/drivers/acpi/acpi_pad.c @@ -46,6 +46,8 @@ static unsigned long power_saving_mwait_eax; static unsigned char tsc_detected_unstable; static unsigned char tsc_marked_unstable; +static unsigned char lapic_detected_unstable; +static unsigned char lapic_marked_unstable; static void power_saving_mwait_init(void) { @@ -75,9 +77,6 @@ static void power_saving_mwait_init(void) power_saving_mwait_eax = (highest_cstate << MWAIT_SUBSTATE_SIZE) | (highest_subcstate - 1); - for_each_online_cpu(i) - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &i); - #if defined(CONFIG_GENERIC_TIME) && defined(CONFIG_X86) switch (boot_cpu_data.x86_vendor) { case X86_VENDOR_AMD: @@ -86,13 +85,15 @@ static void power_saving_mwait_init(void) * AMD Fam10h TSC will tick in all * C/P/S0/S1 states when this bit is set. */ - if (boot_cpu_has(X86_FEATURE_NONSTOP_TSC)) - return; - - /*FALL THROUGH*/ + if (!boot_cpu_has(X86_FEATURE_NONSTOP_TSC)) + tsc_detected_unstable = 1; + if (!boot_cpu_has(X86_FEATURE_ARAT)) + lapic_detected_unstable = 1; + break; default: - /* TSC could halt in idle */ + /* TSC & LAPIC could halt in idle */ tsc_detected_unstable = 1; + lapic_detected_unstable = 1; } #endif } @@ -180,10 +181,20 @@ static int power_saving_thread(void *data) mark_tsc_unstable("TSC halts in idle"); tsc_marked_unstable = 1; } + if (lapic_detected_unstable && !lapic_marked_unstable) { + int i; + /* LAPIC could halt in idle, so notify users */ + for_each_online_cpu(i) + clockevents_notify( + CLOCK_EVT_NOTIFY_BROADCAST_ON, + &i); + lapic_marked_unstable = 1; + } local_irq_disable(); cpu = smp_processor_id(); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, - &cpu); + if (lapic_marked_unstable) + clockevents_notify( + CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu); stop_critical_timings(); __monitor((void *)¤t_thread_info()->flags, 0, 0); @@ -192,8 +203,9 @@ static int power_saving_thread(void *data) __mwait(power_saving_mwait_eax, 1); start_critical_timings(); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, - &cpu); + if (lapic_marked_unstable) + clockevents_notify( + CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu); local_irq_enable(); if (jiffies > expire_time) { -- cgit v1.1 From 56bf882230d2266a2e07b7f404dc96d157a65daa Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Fri, 4 Jun 2010 14:47:35 -0400 Subject: Revert "wireless: hostap, fix oops due to early probing interrupt" This reverts commit 15920d8afc87861672e16fa95ae2764b065d6dd3. This patch was discovered to cause some hostap devices to fail to initialized. https://bugzilla.kernel.org/show_bug.cgi?id=16111 Signed-off-by: John W. Linville --- drivers/net/wireless/hostap/hostap_hw.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c index d707328..ff9b5c8 100644 --- a/drivers/net/wireless/hostap/hostap_hw.c +++ b/drivers/net/wireless/hostap/hostap_hw.c @@ -2618,15 +2618,6 @@ static irqreturn_t prism2_interrupt(int irq, void *dev_id) int events = 0; u16 ev; - /* Detect early interrupt before driver is fully configued */ - if (!dev->base_addr) { - if (net_ratelimit()) { - printk(KERN_DEBUG "%s: Interrupt, but dev not configured\n", - dev->name); - } - return IRQ_HANDLED; - } - iface = netdev_priv(dev); local = iface->local; -- cgit v1.1 From e307139d7ad532761cdbf2a665f3c53c509a2d0e Mon Sep 17 00:00:00 2001 From: Tobias Doerffel Date: Sun, 30 May 2010 00:02:18 +0200 Subject: ath5k: depend on CONFIG_PM_SLEEP for suspend/resume functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When building a kernel with CONFIG_PM=y but neither suspend nor hibernate support, the compiler complains about the static functions ath5k_pci_suspend() and ath5k_pci_resume() not being used: drivers/net/wireless/ath/ath5k/base.c:713:12: warning: ‘ath5k_pci_suspend’ defined but not used drivers/net/wireless/ath/ath5k/base.c:722:12: warning: ‘ath5k_pci_resume’ defined but not used Depending on CONFIG_PM_SLEEP rather than CONFIG_PM fixes the issue. Signed-off-by: Tobias Doerffel Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath5k/base.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c index 2978359..53d95c8 100644 --- a/drivers/net/wireless/ath/ath5k/base.c +++ b/drivers/net/wireless/ath/ath5k/base.c @@ -195,7 +195,7 @@ static const struct ieee80211_rate ath5k_rates[] = { static int __devinit ath5k_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id); static void __devexit ath5k_pci_remove(struct pci_dev *pdev); -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int ath5k_pci_suspend(struct device *dev); static int ath5k_pci_resume(struct device *dev); @@ -203,7 +203,7 @@ static SIMPLE_DEV_PM_OPS(ath5k_pm_ops, ath5k_pci_suspend, ath5k_pci_resume); #define ATH5K_PM_OPS (&ath5k_pm_ops) #else #define ATH5K_PM_OPS NULL -#endif /* CONFIG_PM */ +#endif /* CONFIG_PM_SLEEP */ static struct pci_driver ath5k_pci_driver = { .name = KBUILD_MODNAME, @@ -708,7 +708,7 @@ ath5k_pci_remove(struct pci_dev *pdev) ieee80211_free_hw(hw); } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int ath5k_pci_suspend(struct device *dev) { struct ieee80211_hw *hw = pci_get_drvdata(to_pci_dev(dev)); @@ -734,7 +734,7 @@ static int ath5k_pci_resume(struct device *dev) ath5k_led_enable(sc); return 0; } -#endif /* CONFIG_PM */ +#endif /* CONFIG_PM_SLEEP */ /***********************\ -- cgit v1.1 From 6b5dcccb495b66b3b0b9581cdccfed038e5d68a2 Mon Sep 17 00:00:00 2001 From: Bob Copeland Date: Fri, 4 Jun 2010 08:14:14 -0400 Subject: ath5k: retain promiscuous setting Commit 56d1de0a21db28e41741cfa0a66e18bc8d920554, "ath5k: clean up filter flags setting" introduced a regression in monitor mode such that the promisc filter flag would get lost. Although we set the promisc flag when it changed, we did not preserve it across subsequent calls to configure_filter. This patch restores the original functionality. Cc: stable@kernel.org Bisected-by: weedy2887@gmail.com Tested-by: weedy2887@gmail.com Tested-by: Rick Farina Signed-off-by: Bob Copeland Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath5k/base.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c index 53d95c8..648972d 100644 --- a/drivers/net/wireless/ath/ath5k/base.c +++ b/drivers/net/wireless/ath/ath5k/base.c @@ -3140,13 +3140,15 @@ static void ath5k_configure_filter(struct ieee80211_hw *hw, if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) { if (*new_flags & FIF_PROMISC_IN_BSS) { - rfilt |= AR5K_RX_FILTER_PROM; __set_bit(ATH_STAT_PROMISC, sc->status); } else { __clear_bit(ATH_STAT_PROMISC, sc->status); } } + if (test_bit(ATH_STAT_PROMISC, sc->status)) + rfilt |= AR5K_RX_FILTER_PROM; + /* Note, AR5K_RX_FILTER_MCAST is already enabled */ if (*new_flags & FIF_ALLMULTI) { mfilt[0] = ~0; -- cgit v1.1 From f458823b864c6def488f951a79986fa205aba4f1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Dave=20M=C3=BCller?= Date: Fri, 4 Jun 2010 16:39:59 -0700 Subject: drm/i915: Use RSEN instead of HTPLG for tfp410 monitor detection. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Presence detection of a digital monitor seems not to be reliable using the HTPLG bit. Dave Müller --- drivers/gpu/drm/i915/dvo_tfp410.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/dvo_tfp410.c b/drivers/gpu/drm/i915/dvo_tfp410.c index 66c697b..56f6642 100644 --- a/drivers/gpu/drm/i915/dvo_tfp410.c +++ b/drivers/gpu/drm/i915/dvo_tfp410.c @@ -208,7 +208,7 @@ static enum drm_connector_status tfp410_detect(struct intel_dvo_device *dvo) uint8_t ctl2; if (tfp410_readb(dvo, TFP410_CTL_2, &ctl2)) { - if (ctl2 & TFP410_CTL_2_HTPLG) + if (ctl2 & TFP410_CTL_2_RSEN) ret = connector_status_connected; else ret = connector_status_disconnected; -- cgit v1.1 From c496fa1fff0248ef8cd637efb52b70dea7afaa9d Mon Sep 17 00:00:00 2001 From: Adam Jackson Date: Thu, 27 May 2010 17:26:45 -0400 Subject: drm/i915/gen4: Fix interrupt setup ordering Unmask, then enable interrupts, then enable interrupt sources; matches PCH ordering. The old way (sources, enable, unmask) gives a window during which interrupt conditions would appear in ISR but would never reach IIR and thus never raise an IRQ. Since interrupts only trigger on rising edges in ISR, this would lead to conditions where (for example) output hotplugging would never fire an interrupt because it was already stuck on in ISR. Also, since we know IIR and PIPExSTAT have been cleared during irq_preinstall, don't clear them again during irq_postinstall, nothing good can come of that. Signed-off-by: Adam Jackson Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_irq.c | 50 +++++++++++++++++++---------------------- 1 file changed, 23 insertions(+), 27 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 2479be0..e9710a7 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1387,29 +1387,10 @@ int i915_driver_irq_postinstall(struct drm_device *dev) dev_priv->pipestat[1] = 0; if (I915_HAS_HOTPLUG(dev)) { - u32 hotplug_en = I915_READ(PORT_HOTPLUG_EN); - - /* Note HDMI and DP share bits */ - if (dev_priv->hotplug_supported_mask & HDMIB_HOTPLUG_INT_STATUS) - hotplug_en |= HDMIB_HOTPLUG_INT_EN; - if (dev_priv->hotplug_supported_mask & HDMIC_HOTPLUG_INT_STATUS) - hotplug_en |= HDMIC_HOTPLUG_INT_EN; - if (dev_priv->hotplug_supported_mask & HDMID_HOTPLUG_INT_STATUS) - hotplug_en |= HDMID_HOTPLUG_INT_EN; - if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS) - hotplug_en |= SDVOC_HOTPLUG_INT_EN; - if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS) - hotplug_en |= SDVOB_HOTPLUG_INT_EN; - if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS) - hotplug_en |= CRT_HOTPLUG_INT_EN; - /* Ignore TV since it's buggy */ - - I915_WRITE(PORT_HOTPLUG_EN, hotplug_en); - /* Enable in IER... */ enable_mask |= I915_DISPLAY_PORT_INTERRUPT; /* and unmask in IMR */ - i915_enable_irq(dev_priv, I915_DISPLAY_PORT_INTERRUPT); + dev_priv->irq_mask_reg &= ~I915_DISPLAY_PORT_INTERRUPT; } /* @@ -1427,16 +1408,31 @@ int i915_driver_irq_postinstall(struct drm_device *dev) } I915_WRITE(EMR, error_mask); - /* Disable pipe interrupt enables, clear pending pipe status */ - I915_WRITE(PIPEASTAT, I915_READ(PIPEASTAT) & 0x8000ffff); - I915_WRITE(PIPEBSTAT, I915_READ(PIPEBSTAT) & 0x8000ffff); - /* Clear pending interrupt status */ - I915_WRITE(IIR, I915_READ(IIR)); - - I915_WRITE(IER, enable_mask); I915_WRITE(IMR, dev_priv->irq_mask_reg); + I915_WRITE(IER, enable_mask); (void) I915_READ(IER); + if (I915_HAS_HOTPLUG(dev)) { + u32 hotplug_en = I915_READ(PORT_HOTPLUG_EN); + + /* Note HDMI and DP share bits */ + if (dev_priv->hotplug_supported_mask & HDMIB_HOTPLUG_INT_STATUS) + hotplug_en |= HDMIB_HOTPLUG_INT_EN; + if (dev_priv->hotplug_supported_mask & HDMIC_HOTPLUG_INT_STATUS) + hotplug_en |= HDMIC_HOTPLUG_INT_EN; + if (dev_priv->hotplug_supported_mask & HDMID_HOTPLUG_INT_STATUS) + hotplug_en |= HDMID_HOTPLUG_INT_EN; + if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS) + hotplug_en |= SDVOC_HOTPLUG_INT_EN; + if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS) + hotplug_en |= SDVOB_HOTPLUG_INT_EN; + if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS) + hotplug_en |= CRT_HOTPLUG_INT_EN; + /* Ignore TV since it's buggy */ + + I915_WRITE(PORT_HOTPLUG_EN, hotplug_en); + } + opregion_enable_asle(dev); return 0; -- cgit v1.1 From 0b75f775288b90a83a8708a5af663a03d4bbc9ce Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 5 Jun 2010 00:34:08 -0700 Subject: Input: pcf8574_keypad - fix off by one in pcf8574_kp_irq_handler() If nextstate == ARRAY_SIZE(lp->btncode), then we read one past the end of the array on the next line. This fixes a smatch warning: drivers/input/misc/pcf8574_keypad.c +74 pcf8574_kp_irq_handler(8) error: buffer overflow 'lp->btncode' 17 <= 17 Signed-off-by: Dan Carpenter Acked-by: Jean Delvare Signed-off-by: Dmitry Torokhov --- drivers/input/misc/pcf8574_keypad.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/input/misc/pcf8574_keypad.c b/drivers/input/misc/pcf8574_keypad.c index 5c3ac4e..376e54d 100644 --- a/drivers/input/misc/pcf8574_keypad.c +++ b/drivers/input/misc/pcf8574_keypad.c @@ -69,7 +69,7 @@ static irqreturn_t pcf8574_kp_irq_handler(int irq, void *dev_id) unsigned char nextstate = read_state(lp); if (lp->laststate != nextstate) { - int key_down = nextstate <= ARRAY_SIZE(lp->btncode); + int key_down = nextstate < ARRAY_SIZE(lp->btncode); unsigned short keycode = key_down ? lp->btncode[nextstate] : lp->btncode[lp->laststate]; -- cgit v1.1 From a6866ac93e6cb68091326e80b4fa4619a5957644 Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Thu, 20 May 2010 10:54:40 -0700 Subject: iwl3945: enable stuck queue detection on 3945 We learn from http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=1834 and https://bugzilla.redhat.com/show_bug.cgi?id=589777 that 3945 can also suffer from a stuck command queue. Enable stuck queue detection for iwl3945 to enable recovery in this case. Signed-off-by: Reinette Chatre --- drivers/net/wireless/iwlwifi/iwl-3945.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index 068f7f8..c44a303 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -2852,6 +2852,7 @@ static struct iwl_lib_ops iwl3945_lib = { .isr = iwl_isr_legacy, .config_ap = iwl3945_config_ap, .manage_ibss_station = iwl3945_manage_ibss_station, + .recover_from_tx_stall = iwl_bg_monitor_recover, .check_plcp_health = iwl3945_good_plcp_health, .debugfs_ops = { -- cgit v1.1 From 1402364162afbaac1b8a74ee21aeb013e817ac7d Mon Sep 17 00:00:00 2001 From: Abhijeet Kolekar Date: Wed, 2 Jun 2010 21:15:10 -0700 Subject: iwl3945: fix internal scan Port of internal scan to iwl3945 missed introduction of iwl3945_get_single_channel_for_scan. Fix the following bug by introducing the iwl3945_get_single_channel_for_scan http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2208 Signed-off-by: Abhijeet Kolekar Signed-off-by: Reinette Chatre --- drivers/net/wireless/iwlwifi/iwl-agn-lib.c | 30 ++-------------- drivers/net/wireless/iwlwifi/iwl-core.c | 39 ++++++++++++++++++++ drivers/net/wireless/iwlwifi/iwl-core.h | 2 ++ drivers/net/wireless/iwlwifi/iwl3945-base.c | 56 +++++++++++++++++++++++++++-- 4 files changed, 96 insertions(+), 31 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c index 1004cfc..0f292a2 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c @@ -1119,10 +1119,9 @@ static int iwl_get_single_channel_for_scan(struct iwl_priv *priv, struct iwl_scan_channel *scan_ch) { const struct ieee80211_supported_band *sband; - const struct iwl_channel_info *ch_info; u16 passive_dwell = 0; u16 active_dwell = 0; - int i, added = 0; + int added = 0; u16 channel = 0; sband = iwl_get_hw_mode(priv, band); @@ -1137,32 +1136,7 @@ static int iwl_get_single_channel_for_scan(struct iwl_priv *priv, if (passive_dwell <= active_dwell) passive_dwell = active_dwell + 1; - /* only scan single channel, good enough to reset the RF */ - /* pick the first valid not in-use channel */ - if (band == IEEE80211_BAND_5GHZ) { - for (i = 14; i < priv->channel_count; i++) { - if (priv->channel_info[i].channel != - le16_to_cpu(priv->staging_rxon.channel)) { - channel = priv->channel_info[i].channel; - ch_info = iwl_get_channel_info(priv, - band, channel); - if (is_channel_valid(ch_info)) - break; - } - } - } else { - for (i = 0; i < 14; i++) { - if (priv->channel_info[i].channel != - le16_to_cpu(priv->staging_rxon.channel)) { - channel = - priv->channel_info[i].channel; - ch_info = iwl_get_channel_info(priv, - band, channel); - if (is_channel_valid(ch_info)) - break; - } - } - } + channel = iwl_get_single_channel_number(priv, band); if (channel) { scan_ch->channel = cpu_to_le16(channel); scan_ch->type = SCAN_CHANNEL_TYPE_PASSIVE; diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c index 5a7eca8..426e955 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.c +++ b/drivers/net/wireless/iwlwifi/iwl-core.c @@ -854,6 +854,45 @@ void iwl_set_rxon_chain(struct iwl_priv *priv) } EXPORT_SYMBOL(iwl_set_rxon_chain); +/* Return valid channel */ +u8 iwl_get_single_channel_number(struct iwl_priv *priv, + enum ieee80211_band band) +{ + const struct iwl_channel_info *ch_info; + int i; + u8 channel = 0; + + /* only scan single channel, good enough to reset the RF */ + /* pick the first valid not in-use channel */ + if (band == IEEE80211_BAND_5GHZ) { + for (i = 14; i < priv->channel_count; i++) { + if (priv->channel_info[i].channel != + le16_to_cpu(priv->staging_rxon.channel)) { + channel = priv->channel_info[i].channel; + ch_info = iwl_get_channel_info(priv, + band, channel); + if (is_channel_valid(ch_info)) + break; + } + } + } else { + for (i = 0; i < 14; i++) { + if (priv->channel_info[i].channel != + le16_to_cpu(priv->staging_rxon.channel)) { + channel = + priv->channel_info[i].channel; + ch_info = iwl_get_channel_info(priv, + band, channel); + if (is_channel_valid(ch_info)) + break; + } + } + } + + return channel; +} +EXPORT_SYMBOL(iwl_get_single_channel_number); + /** * iwl_set_rxon_channel - Set the phymode and channel values in staging RXON * @phymode: MODE_IEEE80211A sets to 5.2GHz; all else set to 2.4GHz diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h index 7e5a5ba..31775bd 100644 --- a/drivers/net/wireless/iwlwifi/iwl-core.h +++ b/drivers/net/wireless/iwlwifi/iwl-core.h @@ -343,6 +343,8 @@ int iwl_check_rxon_cmd(struct iwl_priv *priv); int iwl_full_rxon_required(struct iwl_priv *priv); void iwl_set_rxon_chain(struct iwl_priv *priv); int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch); +u8 iwl_get_single_channel_number(struct iwl_priv *priv, + enum ieee80211_band band); void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf); u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv, struct ieee80211_sta_ht_cap *sta_ht_inf); diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 3e5bffb..6c353ca 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -1844,6 +1844,49 @@ static void iwl3945_irq_tasklet(struct iwl_priv *priv) #endif } +static int iwl3945_get_single_channel_for_scan(struct iwl_priv *priv, + struct ieee80211_vif *vif, + enum ieee80211_band band, + struct iwl3945_scan_channel *scan_ch) +{ + const struct ieee80211_supported_band *sband; + u16 passive_dwell = 0; + u16 active_dwell = 0; + int added = 0; + u8 channel = 0; + + sband = iwl_get_hw_mode(priv, band); + if (!sband) { + IWL_ERR(priv, "invalid band\n"); + return added; + } + + active_dwell = iwl_get_active_dwell_time(priv, band, 0); + passive_dwell = iwl_get_passive_dwell_time(priv, band, vif); + + if (passive_dwell <= active_dwell) + passive_dwell = active_dwell + 1; + + + channel = iwl_get_single_channel_number(priv, band); + + if (channel) { + scan_ch->channel = channel; + scan_ch->type = 0; /* passive */ + scan_ch->active_dwell = cpu_to_le16(active_dwell); + scan_ch->passive_dwell = cpu_to_le16(passive_dwell); + /* Set txpower levels to defaults */ + scan_ch->tpc.dsp_atten = 110; + if (band == IEEE80211_BAND_5GHZ) + scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3; + else + scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3)); + added++; + } else + IWL_ERR(priv, "no valid channel found\n"); + return added; +} + static int iwl3945_get_channels_for_scan(struct iwl_priv *priv, enum ieee80211_band band, u8 is_active, u8 n_probes, @@ -2992,9 +3035,16 @@ void iwl3945_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) /* select Rx antennas */ scan->flags |= iwl3945_get_antenna_flags(priv); - scan->channel_count = - iwl3945_get_channels_for_scan(priv, band, is_active, n_probes, - (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)], vif); + if (priv->is_internal_short_scan) { + scan->channel_count = + iwl3945_get_single_channel_for_scan(priv, vif, band, + (void *)&scan->data[le16_to_cpu( + scan->tx_cmd.len)]); + } else { + scan->channel_count = + iwl3945_get_channels_for_scan(priv, band, is_active, n_probes, + (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)], vif); + } if (scan->channel_count == 0) { IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count); -- cgit v1.1 From 7d47618a2ade0cb6d8a0b2597029c383c1662fa0 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Sun, 23 May 2010 00:14:08 -0700 Subject: iwlwifi: move sysfs_create_group to post request firmware Move the sysfs_create_group to iwl_ucode_callback after we have safely got the firmware. The motivation to do this comes from a warning from lockdep which detected that we request priv->mutex while holding s_active during a sysfs request (show_statistics in the example copy pasted). The reverse order exists upon request_firmware: request_firmware which is a sysfs operation that requires s_active is run under priv->mutex. This ensures that we don't get sysfs request before we finish to request the firmware, avoiding this deadlock. ======================================================= [ INFO: possible circular locking dependency detected ] ------------------------------------------------------- cat/2595 is trying to acquire lock: (&priv->mutex){+.+.+.}, at: [] show_statistics+0x48/0x100 [iwlagn] but task is already holding lock: (s_active){++++.+}, at: [] sysfs_get_active_two+0x1d/0x50 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (s_active){++++.+}: [] __lock_acquire+0xc44/0x1230 [] lock_acquire+0x8d/0x110 [] sysfs_addrm_finish+0xe9/0x180 [] sysfs_hash_and_remove+0x4a/0x80 [] sysfs_remove_group+0x44/0xd0 [] dpm_sysfs_remove+0x15/0x20 [] device_del+0x38/0x170 [] device_unregister+0x1e/0x60 [] _request_firmware+0x29d/0x550 [] request_firmware+0x17/0x20 [] iwl_mac_start+0xb1/0x1230 [iwlagn] [] ieee80211_open+0x436/0x6f0 [mac80211] [] dev_open+0x92/0xf0 [] dev_change_flags+0x7b/0x190 [] do_setlink+0x178/0x3b0 [] rtnl_setlink+0xf9/0x130 [] rtnetlink_rcv_msg+0x1bb/0x1f0 [] netlink_rcv_skb+0x86/0xa0 [] rtnetlink_rcv+0x1c/0x30 [] netlink_unicast+0x263/0x290 [] netlink_sendmsg+0x1c8/0x2a0 [] sock_sendmsg+0xcd/0x100 [] sys_sendmsg+0x15d/0x290 [] sys_socketcall+0xeb/0x2a0 [] sysenter_do_call+0x12/0x38 -> #0 (&priv->mutex){+.+.+.}: [] __lock_acquire+0x1054/0x1230 [] lock_acquire+0x8d/0x110 [] __mutex_lock_common+0x58/0x470 [] mutex_lock_nested+0x3a/0x50 [] show_statistics+0x48/0x100 [iwlagn] [] dev_attr_show+0x29/0x50 [] sysfs_read_file+0xdd/0x190 [] vfs_read+0x9f/0x190 [] sys_read+0x42/0x70 [] sysenter_do_call+0x12/0x38 other info that might help us debug this: 3 locks held by cat/2595: #0: (&buffer->mutex){+.+.+.}, at: [] sysfs_read_file+0x35/0x190 #1: (s_active){++++.+}, at: [] sysfs_get_active_two+0x2d/0x50 #2: (s_active){++++.+}, at: [] sysfs_get_active_two+0x1d/0x50 stack backtrace: Pid: 2595, comm: cat Not tainted 2.6.33-tp-rc4 #2 Call Trace: [] ? printk+0x1d/0x22 [] print_circular_bug+0xc2/0xd0 [] __lock_acquire+0x1054/0x1230 [] ? sched_clock_cpu+0x121/0x180 [] lock_acquire+0x8d/0x110 [] ? show_statistics+0x48/0x100 [iwlagn] [] __mutex_lock_common+0x58/0x470 [] ? show_statistics+0x48/0x100 [iwlagn] [] mutex_lock_nested+0x3a/0x50 [] ? show_statistics+0x48/0x100 [iwlagn] [] show_statistics+0x48/0x100 [iwlagn] [] ? sysfs_get_active+0x69/0xb0 [] ? show_statistics+0x0/0x100 [iwlagn] [] dev_attr_show+0x29/0x50 [] sysfs_read_file+0xdd/0x190 [] ? security_file_permission+0x14/0x20 [] ? rw_verify_area+0x62/0xd0 [] vfs_read+0x9f/0x190 [] ? up_read+0x1b/0x30 [] ? sysfs_read_file+0x0/0x190 [] ? audit_syscall_entry+0x1f4/0x220 [] sys_read+0x42/0x70 [] sysenter_do_call+0x12/0x38 Signed-off-by: Emmanuel Grumbach Signed-off-by: Reinette Chatre --- drivers/net/wireless/iwlwifi/iwl-agn.c | 318 ++++++++++++++++----------------- 1 file changed, 159 insertions(+), 159 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index aef4f71..7726e67 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -1484,6 +1484,156 @@ bool iwl_good_ack_health(struct iwl_priv *priv, } +/***************************************************************************** + * + * sysfs attributes + * + *****************************************************************************/ + +#ifdef CONFIG_IWLWIFI_DEBUG + +/* + * The following adds a new attribute to the sysfs representation + * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/) + * used for controlling the debug level. + * + * See the level definitions in iwl for details. + * + * The debug_level being managed using sysfs below is a per device debug + * level that is used instead of the global debug level if it (the per + * device debug level) is set. + */ +static ssize_t show_debug_level(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct iwl_priv *priv = dev_get_drvdata(d); + return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv)); +} +static ssize_t store_debug_level(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct iwl_priv *priv = dev_get_drvdata(d); + unsigned long val; + int ret; + + ret = strict_strtoul(buf, 0, &val); + if (ret) + IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf); + else { + priv->debug_level = val; + if (iwl_alloc_traffic_mem(priv)) + IWL_ERR(priv, + "Not enough memory to generate traffic log\n"); + } + return strnlen(buf, count); +} + +static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, + show_debug_level, store_debug_level); + + +#endif /* CONFIG_IWLWIFI_DEBUG */ + + +static ssize_t show_temperature(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct iwl_priv *priv = dev_get_drvdata(d); + + if (!iwl_is_alive(priv)) + return -EAGAIN; + + return sprintf(buf, "%d\n", priv->temperature); +} + +static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); + +static ssize_t show_tx_power(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct iwl_priv *priv = dev_get_drvdata(d); + + if (!iwl_is_ready_rf(priv)) + return sprintf(buf, "off\n"); + else + return sprintf(buf, "%d\n", priv->tx_power_user_lmt); +} + +static ssize_t store_tx_power(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct iwl_priv *priv = dev_get_drvdata(d); + unsigned long val; + int ret; + + ret = strict_strtoul(buf, 10, &val); + if (ret) + IWL_INFO(priv, "%s is not in decimal form.\n", buf); + else { + ret = iwl_set_tx_power(priv, val, false); + if (ret) + IWL_ERR(priv, "failed setting tx power (0x%d).\n", + ret); + else + ret = count; + } + return ret; +} + +static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); + +static ssize_t show_rts_ht_protection(struct device *d, + struct device_attribute *attr, char *buf) +{ + struct iwl_priv *priv = dev_get_drvdata(d); + + return sprintf(buf, "%s\n", + priv->cfg->use_rts_for_ht ? "RTS/CTS" : "CTS-to-self"); +} + +static ssize_t store_rts_ht_protection(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct iwl_priv *priv = dev_get_drvdata(d); + unsigned long val; + int ret; + + ret = strict_strtoul(buf, 10, &val); + if (ret) + IWL_INFO(priv, "Input is not in decimal form.\n"); + else { + if (!iwl_is_associated(priv)) + priv->cfg->use_rts_for_ht = val ? true : false; + else + IWL_ERR(priv, "Sta associated with AP - " + "Change protection mechanism is not allowed\n"); + ret = count; + } + return ret; +} + +static DEVICE_ATTR(rts_ht_protection, S_IWUSR | S_IRUGO, + show_rts_ht_protection, store_rts_ht_protection); + + +static struct attribute *iwl_sysfs_entries[] = { + &dev_attr_temperature.attr, + &dev_attr_tx_power.attr, + &dev_attr_rts_ht_protection.attr, +#ifdef CONFIG_IWLWIFI_DEBUG + &dev_attr_debug_level.attr, +#endif + NULL +}; + +static struct attribute_group iwl_attribute_group = { + .name = NULL, /* put in device directory */ + .attrs = iwl_sysfs_entries, +}; + /****************************************************************************** * * uCode download functions @@ -1965,6 +2115,13 @@ static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) if (err) IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); + err = sysfs_create_group(&priv->pci_dev->dev.kobj, + &iwl_attribute_group); + if (err) { + IWL_ERR(priv, "failed to create sysfs device attributes\n"); + goto out_unbind; + } + /* We have our copies now, allow OS release its copies */ release_firmware(ucode_raw); complete(&priv->_agn.firmware_loading_complete); @@ -3264,141 +3421,6 @@ static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, /***************************************************************************** * - * sysfs attributes - * - *****************************************************************************/ - -#ifdef CONFIG_IWLWIFI_DEBUG - -/* - * The following adds a new attribute to the sysfs representation - * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/) - * used for controlling the debug level. - * - * See the level definitions in iwl for details. - * - * The debug_level being managed using sysfs below is a per device debug - * level that is used instead of the global debug level if it (the per - * device debug level) is set. - */ -static ssize_t show_debug_level(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - return sprintf(buf, "0x%08X\n", iwl_get_debug_level(priv)); -} -static ssize_t store_debug_level(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - unsigned long val; - int ret; - - ret = strict_strtoul(buf, 0, &val); - if (ret) - IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf); - else { - priv->debug_level = val; - if (iwl_alloc_traffic_mem(priv)) - IWL_ERR(priv, - "Not enough memory to generate traffic log\n"); - } - return strnlen(buf, count); -} - -static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, - show_debug_level, store_debug_level); - - -#endif /* CONFIG_IWLWIFI_DEBUG */ - - -static ssize_t show_temperature(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - - if (!iwl_is_alive(priv)) - return -EAGAIN; - - return sprintf(buf, "%d\n", priv->temperature); -} - -static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); - -static ssize_t show_tx_power(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - - if (!iwl_is_ready_rf(priv)) - return sprintf(buf, "off\n"); - else - return sprintf(buf, "%d\n", priv->tx_power_user_lmt); -} - -static ssize_t store_tx_power(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - unsigned long val; - int ret; - - ret = strict_strtoul(buf, 10, &val); - if (ret) - IWL_INFO(priv, "%s is not in decimal form.\n", buf); - else { - ret = iwl_set_tx_power(priv, val, false); - if (ret) - IWL_ERR(priv, "failed setting tx power (0x%d).\n", - ret); - else - ret = count; - } - return ret; -} - -static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); - -static ssize_t show_rts_ht_protection(struct device *d, - struct device_attribute *attr, char *buf) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - - return sprintf(buf, "%s\n", - priv->cfg->use_rts_for_ht ? "RTS/CTS" : "CTS-to-self"); -} - -static ssize_t store_rts_ht_protection(struct device *d, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct iwl_priv *priv = dev_get_drvdata(d); - unsigned long val; - int ret; - - ret = strict_strtoul(buf, 10, &val); - if (ret) - IWL_INFO(priv, "Input is not in decimal form.\n"); - else { - if (!iwl_is_associated(priv)) - priv->cfg->use_rts_for_ht = val ? true : false; - else - IWL_ERR(priv, "Sta associated with AP - " - "Change protection mechanism is not allowed\n"); - ret = count; - } - return ret; -} - -static DEVICE_ATTR(rts_ht_protection, S_IWUSR | S_IRUGO, - show_rts_ht_protection, store_rts_ht_protection); - - -/***************************************************************************** - * * driver setup and teardown * *****************************************************************************/ @@ -3550,21 +3572,6 @@ static void iwl_uninit_drv(struct iwl_priv *priv) kfree(priv->scan_cmd); } -static struct attribute *iwl_sysfs_entries[] = { - &dev_attr_temperature.attr, - &dev_attr_tx_power.attr, - &dev_attr_rts_ht_protection.attr, -#ifdef CONFIG_IWLWIFI_DEBUG - &dev_attr_debug_level.attr, -#endif - NULL -}; - -static struct attribute_group iwl_attribute_group = { - .name = NULL, /* put in device directory */ - .attrs = iwl_sysfs_entries, -}; - static struct ieee80211_ops iwl_hw_ops = { .tx = iwl_mac_tx, .start = iwl_mac_start, @@ -3750,11 +3757,6 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq); goto out_disable_msi; } - err = sysfs_create_group(&pdev->dev.kobj, &iwl_attribute_group); - if (err) { - IWL_ERR(priv, "failed to create sysfs device attributes\n"); - goto out_free_irq; - } iwl_setup_deferred_work(priv); iwl_setup_rx_handlers(priv); @@ -3788,15 +3790,13 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) err = iwl_request_firmware(priv, true); if (err) - goto out_remove_sysfs; + goto out_destroy_workqueue; return 0; - out_remove_sysfs: + out_destroy_workqueue: destroy_workqueue(priv->workqueue); priv->workqueue = NULL; - sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group); - out_free_irq: free_irq(priv->pci_dev->irq, priv); iwl_free_isr_ict(priv); out_disable_msi: -- cgit v1.1 From 024a07bacf8287a6ddfa83e9d5b951c5e8b4070e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Timo=20Ter=C3=A4s?= Date: Sun, 6 Jun 2010 15:38:47 -0700 Subject: r8169: fix random mdio_write failures MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Some configurations need delay between the "write completed" indication and new write to work reliably. Realtek driver seems to use longer delay when polling the "write complete" bit, so it waits long enough between writes with high probability (but could probably break too). This patch adds a new udelay to make sure we wait unconditionally some time after the write complete indication. This caused a regression with XID 18000000 boards when the board specific phy configuration writing many mdio registers was added in commit 2e955856ff (r8169: phy init for the 8169scd). Some of the configration mdio writes would almost always fail, and depending on failure might leave the PHY in non-working state. Signed-off-by: Timo Teräs Acked-off-by: Francois Romieu Signed-off-by: David S. Miller --- drivers/net/r8169.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index 217e709..03a8318 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -559,6 +559,11 @@ static void mdio_write(void __iomem *ioaddr, int reg_addr, int value) break; udelay(25); } + /* + * Some configurations require a small delay even after the write + * completed indication or the next write might fail. + */ + udelay(25); } static int mdio_read(void __iomem *ioaddr, int reg_addr) -- cgit v1.1 From 386f40c86d6c8d5b717ef20620af1a750d0dacb4 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 6 Jun 2010 20:44:04 -0700 Subject: Revert "tty: fix a little bug in scrup, vt.c" This reverts commit 962400e8fd29981a7b166e463dd143b6ac6a3e76, which was entirely bogus. The code used to multiply the character offset by "vc->vc_cols", and that's actually correct, because 'd' itself is an 'unsigned short'. So the pointer arithmetic already takes the size of a VGA character into account. Changing it to use vc_size_row (which is just "vc_cols" shifted up to take the size of the character into account) ends up multiplying with the VGA character size twice. This got reported as bugs for various other subsystems, because what it actually results in is writing the 16-bit vc_video_erase_char pattern (usually 0x0720: 0x07 is the default attribute, 0x20 is ASCII space) into some random other allocation. So Markus ended up reporting this as a ext4 bug, while to Torsten Kaiser it looked like a problem with KMS or libata. Jeff Chua saw it in different places. And finally - Justin Mattock had slab poisoning enabled, and saw it as a slab poison overwritten. And bisected and reverted this to verify the buggy commit. Reported-by: Markus Trippelsdorf Reported-by: Torsten Kaiser Reported-by: Jeff Chua Reported-by: Justin P. Mattock Reported-bisected-and-tested-by: Justin P. Mattock Acked-by: Dave Airlie Cc: Frank Pan Cc: Greg Kroah-Hartman Signed-off-by: Linus Torvalds --- drivers/char/vt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/char/vt.c b/drivers/char/vt.c index 1296c42..7cdb6ee 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c @@ -304,7 +304,7 @@ static void scrup(struct vc_data *vc, unsigned int t, unsigned int b, int nr) d = (unsigned short *)(vc->vc_origin + vc->vc_size_row * t); s = (unsigned short *)(vc->vc_origin + vc->vc_size_row * (t + nr)); scr_memmovew(d, s, (b - t - nr) * vc->vc_size_row); - scr_memsetw(d + (b - t - nr) * vc->vc_size_row, vc->vc_video_erase_char, + scr_memsetw(d + (b - t - nr) * vc->vc_cols, vc->vc_video_erase_char, vc->vc_size_row * nr); } -- cgit v1.1 From 9227a46bfbac0516fb7428715a095e1bc59b872a Mon Sep 17 00:00:00 2001 From: Jussi Kivilinna Date: Mon, 7 Jun 2010 00:56:27 -0700 Subject: asix: check packet size against mtu+ETH_HLEN instead of ETH_FRAME_LEN Driver checks received packet is too large in asix_rx_fixup() and fails if it is. Problem is that MTU might be set larger than 1500 and asix fails to work correctly with VLAN tagged packets. The check should be 'dev->net->mtu + ETH_HLEN' instead. Tested with AX88772. Signed-off-by: Jussi Kivilinna Signed-off-by: David S. Miller --- drivers/net/usb/asix.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c index 1f802e90..9516f38 100644 --- a/drivers/net/usb/asix.c +++ b/drivers/net/usb/asix.c @@ -344,7 +344,7 @@ static int asix_rx_fixup(struct usbnet *dev, struct sk_buff *skb) return 2; } - if (size > ETH_FRAME_LEN) { + if (size > dev->net->mtu + ETH_HLEN) { netdev_err(dev->net, "asix_rx_fixup() Bad RX Length %d\n", size); return 0; -- cgit v1.1 From 3fd7fa4a89f0b85b9b33e922f15a2289c0fb8499 Mon Sep 17 00:00:00 2001 From: Denis Kirjanov Date: Mon, 7 Jun 2010 01:13:57 -0700 Subject: 8139too: fix buffer overrun in rtl8139_init_board Fix rtl_chip_info buffer overrun when we can't identify the chip. (i = ARRAY_SIZE (rtl_chip_info) in this case) Signed-off-by: Denis Kirjanov Signed-off-by: David S. Miller --- drivers/net/8139too.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c index 4ba7293..80cd074 100644 --- a/drivers/net/8139too.c +++ b/drivers/net/8139too.c @@ -860,6 +860,7 @@ retry: } /* if unknown chip, assume array element #0, original RTL-8139 in this case */ + i = 0; dev_dbg(&pdev->dev, "unknown chip version, assuming RTL-8139\n"); dev_dbg(&pdev->dev, "TxConfig = 0x%lx\n", RTL_R32 (TxConfig)); tp->chipset = 0; -- cgit v1.1 From cfca31ce789963c0dd6ca2e9cc13b90cc2802fbd Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Thu, 27 May 2010 14:32:24 +0200 Subject: [PATCH 2/11] drivers/watchdog: Eliminate a NULL pointer dereference At the point of the call to dev_err, wm8350 is NULL. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // @r exists@ expression E,E1; identifier f; statement S1,S2,S3; @@ if ((E == NULL && ...) || ...) { ... when != if (...) S1 else S2 when != E = E1 * E->f ... when any return ...; } else S3 // Signed-off-by: Julia Lawall Acked-by: Mark Brown Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/wm8350_wdt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/watchdog/wm8350_wdt.c b/drivers/watchdog/wm8350_wdt.c index 89dd7b0..b68d928 100644 --- a/drivers/watchdog/wm8350_wdt.c +++ b/drivers/watchdog/wm8350_wdt.c @@ -284,7 +284,7 @@ static int __devinit wm8350_wdt_probe(struct platform_device *pdev) struct wm8350 *wm8350 = platform_get_drvdata(pdev); if (!wm8350) { - dev_err(wm8350->dev, "No driver data supplied\n"); + pr_err("No driver data supplied\n"); return -ENODEV; } -- cgit v1.1 From 02caa56e4b789b80ae7e0f0f0789f94b44ad32ef Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Fri, 21 May 2010 15:16:53 +0200 Subject: pcmcia: only keep saved I365_CSCINT flag if there is no PCI irq Keeping the saved I365_CSCINT flag around breaks PCMCIA on some system, and is only needed on a few systems to get PCMCIA to work. This patch allows PCMCIA to work on both types, and it fixes https://bugzilla.kernel.org/show_bug.cgi?id=16015 Reported-by: Justin P. Mattock CC: Signed-off-by: Dominik Brodowski --- drivers/pcmcia/yenta_socket.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index 424e576..6bf8b2c 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -975,7 +975,7 @@ static irqreturn_t yenta_probe_handler(int irq, void *dev_id) /* probes the PCI interrupt, use only on override functions */ static int yenta_probe_cb_irq(struct yenta_socket *socket) { - u8 reg; + u8 reg = 0; if (!socket->cb_irq) return -1; @@ -989,7 +989,8 @@ static int yenta_probe_cb_irq(struct yenta_socket *socket) } /* generate interrupt, wait */ - reg = exca_readb(socket, I365_CSCINT); + if (!socket->dev->irq) + reg = exca_readb(socket, I365_CSCINT); exca_writeb(socket, I365_CSCINT, reg | I365_CSC_STSCHG); cb_writel(socket, CB_SOCKET_EVENT, -1); cb_writel(socket, CB_SOCKET_MASK, CB_CSTSMASK); -- cgit v1.1 From 4f2d364b315191bf9f8659f7d221acdf5506a989 Mon Sep 17 00:00:00 2001 From: "Justin P. Mattock" Date: Thu, 20 May 2010 13:40:02 -0700 Subject: pcmcia: yenta_socket.c Remove extra #ifdef CONFIG_YENTA_TI Seems pointless to have two #ifdef's with the same CONFIG_YENTA_TI. Remove the extra one and move CARDBUS_TYPE_ENE with the others. [linux@dominikbrodowski.net: spelling & whitespace fixes] Signed-off-by: Justin P. Mattock Signed-off-by: Dominik Brodowski --- drivers/pcmcia/yenta_socket.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index 6bf8b2c..f1d4137 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -880,6 +880,12 @@ static struct cardbus_type cardbus_type[] = { .restore_state = ti_restore_state, .sock_init = ti_init, }, + [CARDBUS_TYPE_ENE] = { + .override = ene_override, + .save_state = ti_save_state, + .restore_state = ti_restore_state, + .sock_init = ti_init, + }, #endif #ifdef CONFIG_YENTA_RICOH [CARDBUS_TYPE_RICOH] = { @@ -902,14 +908,6 @@ static struct cardbus_type cardbus_type[] = { .restore_state = o2micro_restore_state, }, #endif -#ifdef CONFIG_YENTA_TI - [CARDBUS_TYPE_ENE] = { - .override = ene_override, - .save_state = ti_save_state, - .restore_state = ti_restore_state, - .sock_init = ti_init, - }, -#endif }; -- cgit v1.1 From 287b87a350de4e344d60697a1f16abe2a6cd350a Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Mon, 7 Jun 2010 18:26:51 +0200 Subject: pcmcia: dev_node removal bugfix Patch c7c2fa07 removed one line too much from smc91c92_cs.c. Reported-by: Komuro CC: netdev@vger.kernel.org CC: linux-wireless@vger.kernel.org Signed-off-by: Dominik Brodowski --- drivers/net/pcmcia/smc91c92_cs.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c index 7b6fe89..64e6a84 100644 --- a/drivers/net/pcmcia/smc91c92_cs.c +++ b/drivers/net/pcmcia/smc91c92_cs.c @@ -322,6 +322,7 @@ static int smc91c92_probe(struct pcmcia_device *link) return -ENOMEM; smc = netdev_priv(dev); smc->p_dev = link; + link->priv = dev; spin_lock_init(&smc->lock); link->io.NumPorts1 = 16; -- cgit v1.1 From b83156b52dd77979cc93bafc2283929532f6f7d0 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Mon, 7 Jun 2010 18:31:17 +0200 Subject: pcmcia: avoid validate_cis failure on CIS override Commit a8408c17 introduced a new check to pccard_validate_cis(), which avoids any "late" calls to this function. This broke the insertion of cards which require a CIS override which changes the number of card functions. Fix this by asserting that this is _not_ a late call, but a proper call early during the card insertion process. Fixes https://bugzilla.kernel.org/show_bug.cgi?id=16138 Reported-by: Mikulas Patocka CC: Signed-off-by: Dominik Brodowski --- drivers/pcmcia/ds.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index 7ef7ade..9fc3398 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -671,6 +671,7 @@ static void pcmcia_requery(struct pcmcia_socket *s) if (old_funcs != new_funcs) { /* we need to re-start */ pcmcia_card_remove(s, NULL); + s->functions = 0; pcmcia_card_add(s); } } -- cgit v1.1 From aa679c36756003f1fabdb9fc6f00eb159559f7c3 Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Sat, 5 Jun 2010 02:25:47 +0300 Subject: wl1251: fix a memory leak in probe wl1251_sdio_probe() error path is missing wl1251_free_hw, add it. Signed-off-by: Grazvydas Ignotas Acked-by: Kalle Valo Cc: stable@kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/wl12xx/wl1251_sdio.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/wireless/wl12xx/wl1251_sdio.c b/drivers/net/wireless/wl12xx/wl1251_sdio.c index d234285..c561332 100644 --- a/drivers/net/wireless/wl12xx/wl1251_sdio.c +++ b/drivers/net/wireless/wl12xx/wl1251_sdio.c @@ -259,6 +259,7 @@ disable: sdio_disable_func(func); release: sdio_release_host(func); + wl1251_free_hw(wl); return ret; } -- cgit v1.1 From 0f666a08901f8b01f294ca0ad751019375240ae3 Mon Sep 17 00:00:00 2001 From: Jason Dravet Date: Sat, 5 Jun 2010 15:08:29 -0500 Subject: p54usb: Add device ID for Dell WLA3310 USB Add Dell WLA3310 USB wireless card, which has a Z-Com XG-705A chipset, to the USB Ids in p54usb. Signed-off-by: Jason Dravet Tested-by: Richard Gregory Tillmore Signed-off-by: Larry Finger Acked-by: Christian Lamparter Cc: Signed-off-by: John W. Linville --- drivers/net/wireless/p54/p54usb.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/wireless/p54/p54usb.c b/drivers/net/wireless/p54/p54usb.c index d5b197b..7307325 100644 --- a/drivers/net/wireless/p54/p54usb.c +++ b/drivers/net/wireless/p54/p54usb.c @@ -80,6 +80,7 @@ static struct usb_device_id p54u_table[] __devinitdata = { {USB_DEVICE(0x1413, 0x5400)}, /* Telsey 802.11g USB2.0 Adapter */ {USB_DEVICE(0x1435, 0x0427)}, /* Inventel UR054G */ {USB_DEVICE(0x2001, 0x3704)}, /* DLink DWL-G122 rev A2 */ + {USB_DEVICE(0x413c, 0x5513)}, /* Dell WLA3310 USB Wireless Adapter */ {USB_DEVICE(0x413c, 0x8102)}, /* Spinnaker DUT */ {USB_DEVICE(0x413c, 0x8104)}, /* Cohiba Proto board */ {} -- cgit v1.1 From 436c109adb54433fff689abd71c23a6505e46bb0 Mon Sep 17 00:00:00 2001 From: Bruno Randolf Date: Mon, 7 Jun 2010 13:11:19 +0900 Subject: ath5k: fix NULL pointer in antenna configuration If the channel is not set yet and we configure the antennas just store the setting. It will be activated during the next reset, when the channel is set. Signed-off-by: Bruno Randolf Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath5k/phy.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath5k/phy.c b/drivers/net/wireless/ath/ath5k/phy.c index 1b81c47..492cbb1 100644 --- a/drivers/net/wireless/ath/ath5k/phy.c +++ b/drivers/net/wireless/ath/ath5k/phy.c @@ -1814,6 +1814,13 @@ ath5k_hw_set_antenna_mode(struct ath5k_hw *ah, u8 ant_mode) u8 def_ant, tx_ant, ee_mode; u32 sta_id1 = 0; + /* if channel is not initialized yet we can't set the antennas + * so just store the mode. it will be set on the next reset */ + if (channel == NULL) { + ah->ah_ant_mode = ant_mode; + return; + } + def_ant = ah->ah_def_ant; ATH5K_TRACE(ah->ah_sc); -- cgit v1.1 From b475a3b83a7709e16a734ef2b8ead4d50f885427 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 3 Jun 2010 11:35:03 +0200 Subject: sata_via: explain the magic fix Add Joseph Chan's explanation of the problem and workaround to the VT6421 magic fix. Signed-off-by: Tejun Heo Cc: Joseph Chan Signed-off-by: Jeff Garzik --- drivers/ata/sata_via.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c index 0ecd0f6..4730c42 100644 --- a/drivers/ata/sata_via.c +++ b/drivers/ata/sata_via.c @@ -578,10 +578,24 @@ static void svia_configure(struct pci_dev *pdev) /* * vt6421 has problems talking to some drives. The following - * is the magic fix from Joseph Chan . - * Please add proper documentation if possible. + * is the fix from Joseph Chan . + * + * When host issues HOLD, device may send up to 20DW of data + * before acknowledging it with HOLDA and the host should be + * able to buffer them in FIFO. Unfortunately, some WD drives + * send upto 40DW before acknowledging HOLD and, in the + * default configuration, this ends up overflowing vt6421's + * FIFO, making the controller abort the transaction with + * R_ERR. + * + * Rx52[2] is the internal 128DW FIFO Flow control watermark + * adjusting mechanism enable bit and the default value 0 + * means host will issue HOLD to device when the left FIFO + * size goes below 32DW. Setting it to 1 makes the watermark + * 64DW. * * https://bugzilla.kernel.org/show_bug.cgi?id=15173 + * http://article.gmane.org/gmane.linux.ide/46352 */ if (pdev->device == 0x3249) { pci_read_config_byte(pdev, 0x52, &tmp8); -- cgit v1.1 From 4daedcfe8c6851aa01cc1997220f2577f4039c13 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 3 Jun 2010 11:57:04 +0200 Subject: ahci: add pci quirk for JMB362 JMB362 is a new variant of jmicron controller which is similar to JMB360 but has two SATA ports instead of one. As there is no PATA port, single function AHCI mode can be used as in JMB360. Add pci quirk for JMB362. Signed-off-by: Tejun Heo Reported-by: Aries Lee Cc: stable@kernel.org Signed-off-by: Jeff Garzik --- drivers/pci/quirks.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index b7512cf..477345d 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1457,7 +1457,8 @@ static void quirk_jmicron_ata(struct pci_dev *pdev) conf5 &= ~(1 << 24); /* Clear bit 24 */ switch (pdev->device) { - case PCI_DEVICE_ID_JMICRON_JMB360: + case PCI_DEVICE_ID_JMICRON_JMB360: /* SATA single port */ + case PCI_DEVICE_ID_JMICRON_JMB362: /* SATA dual ports */ /* The controller should be in single function ahci mode */ conf1 |= 0x0002A100; /* Set 8, 13, 15, 17 */ break; @@ -1493,12 +1494,14 @@ static void quirk_jmicron_ata(struct pci_dev *pdev) } DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB368, quirk_jmicron_ata); DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB360, quirk_jmicron_ata); DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB361, quirk_jmicron_ata); +DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB362, quirk_jmicron_ata); DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB363, quirk_jmicron_ata); DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB365, quirk_jmicron_ata); DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB366, quirk_jmicron_ata); -- cgit v1.1 From 7a4f876b876afb13856a79a0402f71b9dfbe86a8 Mon Sep 17 00:00:00 2001 From: Colin Tuckley Date: Fri, 4 Jun 2010 16:19:51 +0200 Subject: sata_sil24: fix kernel panic on ARM caused by unaligned access in sata_sil24 The sata_sil24 driver has six 16-bit registers that are initialised with 32-bit writes. This cause a kernel panic on ARM due to the unaligned accesses which result. This patch changes the accesses to the correct 16-bit ones. Signed-off-by: Colin Tuckley Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/sata_sil24.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c index e925051..70b58fe 100644 --- a/drivers/ata/sata_sil24.c +++ b/drivers/ata/sata_sil24.c @@ -539,12 +539,12 @@ static void sil24_config_port(struct ata_port *ap) writel(PORT_CS_IRQ_WOC, port + PORT_CTRL_CLR); /* zero error counters. */ - writel(0x8000, port + PORT_DECODE_ERR_THRESH); - writel(0x8000, port + PORT_CRC_ERR_THRESH); - writel(0x8000, port + PORT_HSHK_ERR_THRESH); - writel(0x0000, port + PORT_DECODE_ERR_CNT); - writel(0x0000, port + PORT_CRC_ERR_CNT); - writel(0x0000, port + PORT_HSHK_ERR_CNT); + writew(0x8000, port + PORT_DECODE_ERR_THRESH); + writew(0x8000, port + PORT_CRC_ERR_THRESH); + writew(0x8000, port + PORT_HSHK_ERR_THRESH); + writew(0x0000, port + PORT_DECODE_ERR_CNT); + writew(0x0000, port + PORT_CRC_ERR_CNT); + writew(0x0000, port + PORT_HSHK_ERR_CNT); /* always use 64bit activation */ writel(PORT_CS_32BIT_ACTV, port + PORT_CTRL_CLR); -- cgit v1.1 From 0ee719527229fa86ace8e3abccae3c2a8bbfd6db Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 7 Jun 2010 15:15:08 +0200 Subject: ahci: redo stopping DMA engines on empty ports Commit 96d60303fd (ahci: Turn off DMA engines when there's no device) implemented stopping DMA engines on empty ports but it used single sampling of status registers to determine device presence which led to disabling of DMA engines on occupied ports. Do it after all EH actions are complete using device presence state determined by EH. This avoids spurious disabling of DMA engines and simplifies the code. Signed-off-by: Tejun Heo Tested-by: Marc Dionne Cc: Matthew Garrett Cc: Robert Hancock Signed-off-by: Jeff Garzik --- drivers/ata/libahci.c | 21 +++------------------ 1 file changed, 3 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 1984a6e..261f86d 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -541,29 +541,11 @@ static int ahci_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val) return -EINVAL; } -static int ahci_is_device_present(void __iomem *port_mmio) -{ - u8 status = readl(port_mmio + PORT_TFDATA) & 0xff; - - /* Make sure PxTFD.STS.BSY and PxTFD.STS.DRQ are 0 */ - if (status & (ATA_BUSY | ATA_DRQ)) - return 0; - - /* Make sure PxSSTS.DET is 3h */ - status = readl(port_mmio + PORT_SCR_STAT) & 0xf; - if (status != 3) - return 0; - return 1; -} - void ahci_start_engine(struct ata_port *ap) { void __iomem *port_mmio = ahci_port_base(ap); u32 tmp; - if (!ahci_is_device_present(port_mmio)) - return; - /* start DMA */ tmp = readl(port_mmio + PORT_CMD); tmp |= PORT_CMD_START; @@ -1892,6 +1874,9 @@ static void ahci_error_handler(struct ata_port *ap) } sata_pmp_error_handler(ap); + + if (!ata_dev_enabled(ap->link.device)) + ahci_stop_engine(ap); } static void ahci_post_internal_cmd(struct ata_queued_cmd *qc) -- cgit v1.1 From a3524f1b27671eda909cde37da9caff41133b272 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Sun, 6 Jun 2010 18:59:41 +1000 Subject: drm/i915: fix oops on single crtc devices. (regression fix since fbdev/kms rework). My fb rework didn't remember about the 84/65s. Reported-by: Ondrej Zary Tested-by: Ondrej Zary Signed-off-by: Dave Airlie --- drivers/gpu/drm/i915/i915_drv.h | 1 + drivers/gpu/drm/i915/intel_display.c | 9 ++++----- drivers/gpu/drm/i915/intel_fb.c | 2 +- 3 files changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 9ed8ecd..2765831 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -278,6 +278,7 @@ typedef struct drm_i915_private { struct mem_block *agp_heap; unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds; int vblank_pipe; + int num_pipe; /* For hangcheck timer */ #define DRM_I915_HANGCHECK_PERIOD 75 /* in jiffies */ diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 04e1bb4..2861da3 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5470,7 +5470,6 @@ static void intel_init_display(struct drm_device *dev) void intel_modeset_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; - int num_pipe; int i; drm_mode_config_init(dev); @@ -5500,13 +5499,13 @@ void intel_modeset_init(struct drm_device *dev) dev->mode_config.fb_base = pci_resource_start(dev->pdev, 0); if (IS_MOBILE(dev) || IS_I9XX(dev)) - num_pipe = 2; + dev_priv->num_pipe = 2; else - num_pipe = 1; + dev_priv->num_pipe = 1; DRM_DEBUG_KMS("%d display pipe%s available.\n", - num_pipe, num_pipe > 1 ? "s" : ""); + dev_priv->num_pipe, dev_priv->num_pipe > 1 ? "s" : ""); - for (i = 0; i < num_pipe; i++) { + for (i = 0; i < dev_priv->num_pipe; i++) { intel_crtc_init(dev, i); } diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c index f8c76e6..dfbb0c6 100644 --- a/drivers/gpu/drm/i915/intel_fb.c +++ b/drivers/gpu/drm/i915/intel_fb.c @@ -253,7 +253,7 @@ int intel_fbdev_init(struct drm_device *dev) dev_priv->fbdev = ifbdev; ifbdev->helper.funcs = &intel_fb_helper_funcs; - drm_fb_helper_init(dev, &ifbdev->helper, 2, + drm_fb_helper_init(dev, &ifbdev->helper, dev_priv->num_pipe, INTELFB_CONN_LIMIT); drm_fb_helper_single_add_all_connectors(&ifbdev->helper); -- cgit v1.1 From 5a79395b2791cc70442ab8434aed1b5206683e7c Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sun, 6 Jun 2010 10:50:03 +0100 Subject: drm: Propagate error from drm_fb_helper_init(). The previous commit fixes the problem, these commits make sure we actually fail properly if it happens again. I've squashed the commits from Chris since they are all fixing one issue. Signed-off-by: Chris Wilson Signed-off-by: Dave Airlie --- drivers/gpu/drm/i915/i915_dma.c | 19 ++++++++++++++----- drivers/gpu/drm/i915/intel_fb.c | 10 ++++++++-- drivers/gpu/drm/nouveau/nouveau_fbcon.c | 8 +++++++- drivers/gpu/drm/radeon/radeon_fb.c | 12 +++++++++--- 4 files changed, 38 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index b2ebf02..59a2bf8 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1402,19 +1402,19 @@ static int i915_load_modeset_init(struct drm_device *dev, /* if we have > 1 VGA cards, then disable the radeon VGA resources */ ret = vga_client_register(dev->pdev, dev, NULL, i915_vga_set_decode); if (ret) - goto destroy_ringbuffer; + goto cleanup_ringbuffer; ret = vga_switcheroo_register_client(dev->pdev, i915_switcheroo_set_state, i915_switcheroo_can_switch); if (ret) - goto destroy_ringbuffer; + goto cleanup_vga_client; intel_modeset_init(dev); ret = drm_irq_install(dev); if (ret) - goto destroy_ringbuffer; + goto cleanup_vga_switcheroo; /* Always safe in the mode setting case. */ /* FIXME: do pre/post-mode set stuff in core KMS code */ @@ -1426,11 +1426,20 @@ static int i915_load_modeset_init(struct drm_device *dev, I915_WRITE(INSTPM, (1 << 5) | (1 << 21)); - intel_fbdev_init(dev); + ret = intel_fbdev_init(dev); + if (ret) + goto cleanup_irq; + drm_kms_helper_poll_init(dev); return 0; -destroy_ringbuffer: +cleanup_irq: + drm_irq_uninstall(dev); +cleanup_vga_switcheroo: + vga_switcheroo_unregister_client(dev->pdev); +cleanup_vga_client: + vga_client_register(dev->pdev, NULL, NULL, NULL); +cleanup_ringbuffer: mutex_lock(&dev->struct_mutex); i915_gem_cleanup_ringbuffer(dev); mutex_unlock(&dev->struct_mutex); diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c index dfbb0c6..c3c5052 100644 --- a/drivers/gpu/drm/i915/intel_fb.c +++ b/drivers/gpu/drm/i915/intel_fb.c @@ -245,6 +245,7 @@ int intel_fbdev_init(struct drm_device *dev) { struct intel_fbdev *ifbdev; drm_i915_private_t *dev_priv = dev->dev_private; + int ret; ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL); if (!ifbdev) @@ -253,8 +254,13 @@ int intel_fbdev_init(struct drm_device *dev) dev_priv->fbdev = ifbdev; ifbdev->helper.funcs = &intel_fb_helper_funcs; - drm_fb_helper_init(dev, &ifbdev->helper, dev_priv->num_pipe, - INTELFB_CONN_LIMIT); + ret = drm_fb_helper_init(dev, &ifbdev->helper, + dev_priv->num_pipe, + INTELFB_CONN_LIMIT); + if (ret) { + kfree(ifbdev); + return ret; + } drm_fb_helper_single_add_all_connectors(&ifbdev->helper); drm_fb_helper_initial_config(&ifbdev->helper, 32); diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c index fd4a2df..c9a4a0d 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -377,6 +377,7 @@ int nouveau_fbcon_init(struct drm_device *dev) { struct drm_nouveau_private *dev_priv = dev->dev_private; struct nouveau_fbdev *nfbdev; + int ret; nfbdev = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL); if (!nfbdev) @@ -386,7 +387,12 @@ int nouveau_fbcon_init(struct drm_device *dev) dev_priv->nfbdev = nfbdev; nfbdev->helper.funcs = &nouveau_fbcon_helper_funcs; - drm_fb_helper_init(dev, &nfbdev->helper, 2, 4); + ret = drm_fb_helper_init(dev, &nfbdev->helper, 2, 4); + if (ret) { + kfree(nfbdev); + return ret; + } + drm_fb_helper_single_add_all_connectors(&nfbdev->helper); drm_fb_helper_initial_config(&nfbdev->helper, 32); return 0; diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c index e192acf..dc1634b 100644 --- a/drivers/gpu/drm/radeon/radeon_fb.c +++ b/drivers/gpu/drm/radeon/radeon_fb.c @@ -363,6 +363,7 @@ int radeon_fbdev_init(struct radeon_device *rdev) { struct radeon_fbdev *rfbdev; int bpp_sel = 32; + int ret; /* select 8 bpp console on RN50 or 16MB cards */ if (ASIC_IS_RN50(rdev) || rdev->mc.real_vram_size <= (32*1024*1024)) @@ -376,9 +377,14 @@ int radeon_fbdev_init(struct radeon_device *rdev) rdev->mode_info.rfbdev = rfbdev; rfbdev->helper.funcs = &radeon_fb_helper_funcs; - drm_fb_helper_init(rdev->ddev, &rfbdev->helper, - rdev->num_crtc, - RADEONFB_CONN_LIMIT); + ret = drm_fb_helper_init(rdev->ddev, &rfbdev->helper, + rdev->num_crtc, + RADEONFB_CONN_LIMIT); + if (ret) { + kfree(rfbdev); + return ret; + } + drm_fb_helper_single_add_all_connectors(&rfbdev->helper); drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel); return 0; -- cgit v1.1 From 9bad145ee2ef43ac36d397190a7d8b1a7306d3fb Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 7 Jun 2010 12:00:57 +1000 Subject: drm/radeon: fix PM on non-vram cards. PM attemps to unmap objects that aren't actually mapped into userspace ever, so just don't bother unmapping them at this point, since all you are doing is nothing. We should be making sure all access to these objects are locked in kernel space instead. In theory the VRAM gart table is already done, and both the shaders and stolen vga memory blocks are never accessed at runtime. fixes: https://bugzilla.kernel.org/show_bug.cgi?id=16127 Reported-by: Jure Repnic Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_pm.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 0228126..6f80625 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -127,15 +127,6 @@ static void radeon_unmap_vram_bos(struct radeon_device *rdev) if (bo->tbo.mem.mem_type == TTM_PL_VRAM) ttm_bo_unmap_virtual(&bo->tbo); } - - if (rdev->gart.table.vram.robj) - ttm_bo_unmap_virtual(&rdev->gart.table.vram.robj->tbo); - - if (rdev->stollen_vga_memory) - ttm_bo_unmap_virtual(&rdev->stollen_vga_memory->tbo); - - if (rdev->r600_blit.shader_obj) - ttm_bo_unmap_virtual(&rdev->r600_blit.shader_obj->tbo); } static void radeon_sync_with_vblank(struct radeon_device *rdev) -- cgit v1.1 From fc2362afd5ab9456caab4de317da796cc88944fe Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 7 Jun 2010 12:14:54 +1000 Subject: drm/fb: use printk to print out the switching to text mode error. using DRM_ERROR, results in people blaming the drm code for the oops, and not looking at the oops. (sadly yes I've gotten reports). Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_fb_helper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index b3779d2..08c4c92 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -264,7 +264,7 @@ bool drm_fb_helper_force_kernel_mode(void) int drm_fb_helper_panic(struct notifier_block *n, unsigned long ununsed, void *panic_str) { - DRM_ERROR("panic occurred, switching back to text console\n"); + printk(KERN_ERR "panic occurred, switching back to text console\n"); return drm_fb_helper_force_kernel_mode(); return 0; } -- cgit v1.1 From e902a358c753b93245083201c02312a580cf13d4 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 4 Jun 2010 12:23:21 +0200 Subject: drm/drm_crtc: return -EFAULT on copy_to_user errors copy_from_user() returns the number of bytes left to be copied but we want to return a negative error code here. This is in the ioctl handler so the error code get returned to userspace. Signed-off-by: Dan Carpenter Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_crtc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 994d23b..57cea01 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1840,8 +1840,10 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev, ret = copy_from_user(clips, clips_ptr, num_clips * sizeof(*clips)); - if (ret) + if (ret) { + ret = -EFAULT; goto out_err2; + } } if (fb->funcs->dirty) { -- cgit v1.1 From 9b8eb4d14767209c83087063352cd04266ecdfd1 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 4 Jun 2010 12:24:13 +0200 Subject: drm/vmwgfx: return -EFAULT for copy_to_user errors copy_to/from_user() returns the number of bytes remaining to be copied but we want to return a negative error code here. This gets returned to userspace. Signed-off-by: Dan Carpenter Signed-off-by: Dave Airlie --- drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 1 + drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 8 ++++++-- 2 files changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index bdd67cf..8e39685 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -644,6 +644,7 @@ int vmw_execbuf_ioctl(struct drm_device *dev, void *data, ret = copy_from_user(cmd, user_cmd, arg->command_size); if (unlikely(ret != 0)) { + ret = -EFAULT; DRM_ERROR("Failed copying commands.\n"); goto out_commit; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index f8fbbc6..8612378 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -597,8 +597,10 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data, ret = copy_from_user(srf->sizes, user_sizes, srf->num_sizes * sizeof(*srf->sizes)); - if (unlikely(ret != 0)) + if (unlikely(ret != 0)) { + ret = -EFAULT; goto out_err1; + } if (srf->scanout && srf->num_sizes == 1 && @@ -697,9 +699,11 @@ int vmw_surface_reference_ioctl(struct drm_device *dev, void *data, if (user_sizes) ret = copy_to_user(user_sizes, srf->sizes, srf->num_sizes * sizeof(*srf->sizes)); - if (unlikely(ret != 0)) + if (unlikely(ret != 0)) { DRM_ERROR("copy_to_user failed %p %u\n", user_sizes, srf->num_sizes); + ret = -EFAULT; + } out_bad_resource: out_no_reference: ttm_base_object_unref(&base); -- cgit v1.1 From 148a03bc0b0e3ef153d0cade7bc88e9b14edfb7a Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 3 Jun 2010 19:00:03 -0400 Subject: drm/radeon/kms/evergreen: set accel_enabled This is needed to enable accel in the ddx. However, due to a bug in older versions of the ddx, it relies on accel being disabled in order to load properly on evergreen chips. To maintain compatility, we add a new get accel param and call that from the ddx. The old one always returns false for evergreen cards. [this fixes a regression with older userspaces on newer kernels]. Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/evergreen.c | 2 +- drivers/gpu/drm/radeon/radeon_drv.c | 3 ++- drivers/gpu/drm/radeon/radeon_kms.c | 9 ++++++++- 3 files changed, 11 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 0440c09..49c94ae 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -2153,7 +2153,7 @@ int evergreen_init(struct radeon_device *rdev) if (r) return r; - rdev->accel_working = false; + rdev->accel_working = true; r = evergreen_startup(rdev); if (r) { dev_err(rdev->dev, "disabling GPU acceleration\n"); diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 902d173..e166fe4 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -45,9 +45,10 @@ * - 2.2.0 - add r6xx/r7xx const buffer support * - 2.3.0 - add MSPOS + 3D texture + r500 VAP regs * - 2.4.0 - add crtc id query + * - 2.5.0 - add get accel 2 to work around ddx breakage for evergreen */ #define KMS_DRIVER_MAJOR 2 -#define KMS_DRIVER_MINOR 4 +#define KMS_DRIVER_MINOR 5 #define KMS_DRIVER_PATCHLEVEL 0 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags); int radeon_driver_unload_kms(struct drm_device *dev); diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c index 0406835..6a70c0d 100644 --- a/drivers/gpu/drm/radeon/radeon_kms.c +++ b/drivers/gpu/drm/radeon/radeon_kms.c @@ -118,7 +118,11 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) value = rdev->num_z_pipes; break; case RADEON_INFO_ACCEL_WORKING: - value = rdev->accel_working; + /* xf86-video-ati 6.13.0 relies on this being false for evergreen */ + if ((rdev->family >= CHIP_CEDAR) && (rdev->family <= CHIP_HEMLOCK)) + value = false; + else + value = rdev->accel_working; break; case RADEON_INFO_CRTC_FROM_ID: for (i = 0, found = 0; i < rdev->num_crtc; i++) { @@ -134,6 +138,9 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) return -EINVAL; } break; + case RADEON_INFO_ACCEL_WORKING2: + value = rdev->accel_working; + break; default: DRM_DEBUG("Invalid request %d\n", info->request); return -EINVAL; -- cgit v1.1 From 8de016e2bd8ebce9b3728462085bef51179841a6 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 3 Jun 2010 21:28:23 -0400 Subject: drm/radeon/kms/combios: fix typo in voltage fix MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Noticed by Rafał Miłecki. Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_combios.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 102c744..f6f907e 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -2455,7 +2455,7 @@ default_mode: rdev->pm.power_state[state_index].clock_info[0].sclk = rdev->clock.default_sclk; rdev->pm.power_state[state_index].default_clock_mode = &rdev->pm.power_state[state_index].clock_info[0]; if ((state_index > 0) && - (rdev->pm.power_state[0].clock_info[0].voltage.type = VOLTAGE_GPIO)) + (rdev->pm.power_state[0].clock_info[0].voltage.type == VOLTAGE_GPIO)) rdev->pm.power_state[state_index].clock_info[0].voltage = rdev->pm.power_state[0].clock_info[0].voltage; else -- cgit v1.1 From f8ed8b4c5d30b5214f185997131b06e35f6f7113 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 7 Jun 2010 17:49:51 -0400 Subject: drm/radeon/kms/pm: Misc fixes - don't rest the power state in pm_init() We already boot up to the default power state. Note this patch relies on: drm/radeon/kms/pm: patch default power state with default clocks/voltages on r6xx+ To make sure the default power state matches the boot up state. - In the pm resume path asic init will have set the power state back to the default so reset the tracking state values. Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_pm.c | 26 ++++++++++---------------- 1 file changed, 10 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 6f80625..62e7f96 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -368,15 +368,18 @@ void radeon_pm_suspend(struct radeon_device *rdev) { mutex_lock(&rdev->pm.mutex); cancel_delayed_work(&rdev->pm.dynpm_idle_work); - rdev->pm.current_power_state_index = -1; - rdev->pm.current_clock_mode_index = -1; - rdev->pm.current_sclk = 0; - rdev->pm.current_mclk = 0; mutex_unlock(&rdev->pm.mutex); } void radeon_pm_resume(struct radeon_device *rdev) { + /* asic init will reset the default power state */ + mutex_lock(&rdev->pm.mutex); + rdev->pm.current_power_state_index = rdev->pm.default_power_state_index; + rdev->pm.current_clock_mode_index = 0; + rdev->pm.current_sclk = rdev->clock.default_sclk; + rdev->pm.current_mclk = rdev->clock.default_mclk; + mutex_unlock(&rdev->pm.mutex); radeon_pm_compute_clocks(rdev); } @@ -385,12 +388,13 @@ int radeon_pm_init(struct radeon_device *rdev) int ret; /* default to profile method */ rdev->pm.pm_method = PM_METHOD_PROFILE; + rdev->pm.profile = PM_PROFILE_DEFAULT; rdev->pm.dynpm_state = DYNPM_STATE_DISABLED; rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE; rdev->pm.dynpm_can_upclock = true; rdev->pm.dynpm_can_downclock = true; - rdev->pm.current_sclk = 0; - rdev->pm.current_mclk = 0; + rdev->pm.current_sclk = rdev->clock.default_sclk; + rdev->pm.current_mclk = rdev->clock.default_mclk; if (rdev->bios) { if (rdev->is_atom_bios) @@ -398,19 +402,9 @@ int radeon_pm_init(struct radeon_device *rdev) else radeon_combios_get_power_modes(rdev); radeon_pm_init_profile(rdev); - rdev->pm.current_power_state_index = -1; - rdev->pm.current_clock_mode_index = -1; } if (rdev->pm.num_power_states > 1) { - if (rdev->pm.pm_method == PM_METHOD_PROFILE) { - mutex_lock(&rdev->pm.mutex); - rdev->pm.profile = PM_PROFILE_DEFAULT; - radeon_pm_update_profile(rdev); - radeon_pm_set_clocks(rdev); - mutex_unlock(&rdev->pm.mutex); - } - /* where's the best place to put these? */ ret = device_create_file(rdev->dev, &dev_attr_power_profile); if (ret) -- cgit v1.1 From c9e75b2125b563e67663f78ad53ea9387a9a7aa1 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 2 Jun 2010 17:56:01 -0400 Subject: drm/radeon/kms/pm: add mid profile This adds an additional profile, mid, to the pm profile code which takes the place of the old low profile. The default behavior remains the same, e.g., auto profile now selects between mid and high profiles based on power source, however, you can now manually force the low profile which was previously only available as a dpms off state. Enabling the low profile when the displays are on has been known to cause display corruption in some cases. Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r100.c | 10 ++++ drivers/gpu/drm/radeon/r420.c | 12 ++++- drivers/gpu/drm/radeon/r600.c | 94 +++++++++++++++++++++++++++++++++++--- drivers/gpu/drm/radeon/radeon.h | 11 +++-- drivers/gpu/drm/radeon/radeon_pm.c | 12 ++++- 5 files changed, 126 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index cc004b0..cf89aa2 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -162,6 +162,11 @@ void r100_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0; + /* mid sh */ + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0; /* high sh */ rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 0; rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; @@ -172,6 +177,11 @@ void r100_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0; + /* mid mh */ + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0; /* high mh */ rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 0; rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c index 4415a5e..e6c8914 100644 --- a/drivers/gpu/drm/radeon/r420.c +++ b/drivers/gpu/drm/radeon/r420.c @@ -45,9 +45,14 @@ void r420_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 0; /* low sh */ rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = 0; - rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 1; + rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0; + /* mid sh */ + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 1; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0; /* high sh */ rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 0; rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; @@ -58,6 +63,11 @@ void r420_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0; + /* mid mh */ + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0; /* high mh */ rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 0; rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index e14f597..d152cec 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -291,6 +291,11 @@ void rs780_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0; + /* mid sh */ + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0; /* high sh */ rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 0; rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = 1; @@ -301,6 +306,11 @@ void rs780_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0; + /* mid mh */ + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0; /* high mh */ rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 0; rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = 1; @@ -317,6 +327,11 @@ void rs780_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 1; rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0; + /* mid sh */ + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 1; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 1; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0; /* high sh */ rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 1; rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = 2; @@ -327,6 +342,11 @@ void rs780_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = 1; rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0; + /* mid mh */ + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 1; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = 1; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0; /* high mh */ rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 1; rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = 2; @@ -343,6 +363,11 @@ void rs780_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 2; rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0; + /* mid sh */ + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 2; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 2; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0; /* high sh */ rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 2; rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = 3; @@ -353,6 +378,11 @@ void rs780_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0; + /* mid mh */ + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 2; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0; /* high mh */ rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 2; rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = 3; @@ -375,6 +405,11 @@ void r600_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0; + /* mid sh */ + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0; /* high sh */ rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index; rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; @@ -385,6 +420,11 @@ void r600_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0; rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0; + /* mid mh */ + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0; /* high mh */ rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index; rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; @@ -401,7 +441,12 @@ void r600_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = 1; rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 1; rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0; - rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 1; + rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0; + /* mid sh */ + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 1; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 1; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 1; /* high sh */ rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 1; rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = 1; @@ -411,7 +456,12 @@ void r600_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = 2; rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = 2; rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0; - rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 1; + rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0; + /* low mh */ + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 2; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = 2; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 1; /* high mh */ rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 2; rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = 2; @@ -430,14 +480,30 @@ void r600_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = r600_pm_get_type_index(rdev, POWER_STATE_TYPE_BATTERY, 0); rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0; - rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 1; + rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0; } else { rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = r600_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 0); rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = r600_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 0); rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0; - rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 1; + rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0; + } + /* mid sh */ + if (rdev->flags & RADEON_IS_MOBILITY) { + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = + r600_pm_get_type_index(rdev, POWER_STATE_TYPE_BATTERY, 0); + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = + r600_pm_get_type_index(rdev, POWER_STATE_TYPE_BATTERY, 0); + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 1; + } else { + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = + r600_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 0); + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = + r600_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 0); + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 1; } /* high sh */ rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = @@ -453,14 +519,30 @@ void r600_pm_init_profile(struct radeon_device *rdev) rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = r600_pm_get_type_index(rdev, POWER_STATE_TYPE_BATTERY, 1); rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0; - rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 2; + rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0; } else { rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = r600_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 1); rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = r600_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 1); rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0; - rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 1; + rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0; + } + /* mid mh */ + if (rdev->flags & RADEON_IS_MOBILITY) { + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = + r600_pm_get_type_index(rdev, POWER_STATE_TYPE_BATTERY, 1); + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = + r600_pm_get_type_index(rdev, POWER_STATE_TYPE_BATTERY, 1); + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 1; + } else { + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = + r600_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 1); + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = + r600_pm_get_type_index(rdev, POWER_STATE_TYPE_PERFORMANCE, 1); + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0; + rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 1; } /* high mh */ rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 5f96fe8..2ad0e03 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -648,15 +648,18 @@ enum radeon_pm_profile_type { PM_PROFILE_DEFAULT, PM_PROFILE_AUTO, PM_PROFILE_LOW, + PM_PROFILE_MID, PM_PROFILE_HIGH, }; #define PM_PROFILE_DEFAULT_IDX 0 #define PM_PROFILE_LOW_SH_IDX 1 -#define PM_PROFILE_HIGH_SH_IDX 2 -#define PM_PROFILE_LOW_MH_IDX 3 -#define PM_PROFILE_HIGH_MH_IDX 4 -#define PM_PROFILE_MAX 5 +#define PM_PROFILE_MID_SH_IDX 2 +#define PM_PROFILE_HIGH_SH_IDX 3 +#define PM_PROFILE_LOW_MH_IDX 4 +#define PM_PROFILE_MID_MH_IDX 5 +#define PM_PROFILE_HIGH_MH_IDX 6 +#define PM_PROFILE_MAX 7 struct radeon_pm_profile { int dpms_off_ps_idx; diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 62e7f96..fcdf1db 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -84,9 +84,9 @@ static void radeon_pm_update_profile(struct radeon_device *rdev) rdev->pm.profile_index = PM_PROFILE_HIGH_SH_IDX; } else { if (rdev->pm.active_crtc_count > 1) - rdev->pm.profile_index = PM_PROFILE_LOW_MH_IDX; + rdev->pm.profile_index = PM_PROFILE_MID_MH_IDX; else - rdev->pm.profile_index = PM_PROFILE_LOW_SH_IDX; + rdev->pm.profile_index = PM_PROFILE_MID_SH_IDX; } break; case PM_PROFILE_LOW: @@ -95,6 +95,12 @@ static void radeon_pm_update_profile(struct radeon_device *rdev) else rdev->pm.profile_index = PM_PROFILE_LOW_SH_IDX; break; + case PM_PROFILE_MID: + if (rdev->pm.active_crtc_count > 1) + rdev->pm.profile_index = PM_PROFILE_MID_MH_IDX; + else + rdev->pm.profile_index = PM_PROFILE_MID_SH_IDX; + break; case PM_PROFILE_HIGH: if (rdev->pm.active_crtc_count > 1) rdev->pm.profile_index = PM_PROFILE_HIGH_MH_IDX; @@ -302,6 +308,8 @@ static ssize_t radeon_set_pm_profile(struct device *dev, rdev->pm.profile = PM_PROFILE_AUTO; else if (strncmp("low", buf, strlen("low")) == 0) rdev->pm.profile = PM_PROFILE_LOW; + else if (strncmp("mid", buf, strlen("mid")) == 0) + rdev->pm.profile = PM_PROFILE_MID; else if (strncmp("high", buf, strlen("high")) == 0) rdev->pm.profile = PM_PROFILE_HIGH; else { -- cgit v1.1 From cbd4623d4d3a622de6481052b44cd33ea880cd61 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 7 Jun 2010 02:24:54 -0400 Subject: drm/radeon/kms: fix typo in printing the HPD info I forgot to fix this in 8e36ed00842668a39a6ed1b0a00b8ac92b7c4cd5 Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_display.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c index 1006549..8154cdf 100644 --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -284,8 +284,7 @@ static const char *connector_names[15] = { "eDP", }; -static const char *hpd_names[7] = { - "NONE", +static const char *hpd_names[6] = { "HPD1", "HPD2", "HPD3", -- cgit v1.1 From aa1df0f229829109e49d1dc493252fd94a7af2a1 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 7 Jun 2010 11:35:53 -0400 Subject: drm/radeon/kms/pm: Disable voltage adjust on RS780/RS880 The vddc value in the power tables is not an actual voltage like on discrete r6xx/r7xx/evergreen systems, but instead has a symbolic meaning (e.g., NONE, LOW, HIGH, etc.). See atombios.h Most RS780/RS880 vbioses don't have a SetVoltage table anyway, so it shouldn't be doing anything to the hardware at the moment. I need to figure out how voltage is supposed to work on the newer IGPs; until then, disable it. Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_atombios.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 4305cd5..f0fcd6c 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1833,10 +1833,7 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev) /* skip invalid modes */ if (rdev->pm.power_state[state_index].clock_info[mode_index].sclk == 0) continue; - rdev->pm.power_state[state_index].clock_info[mode_index].voltage.type = - VOLTAGE_SW; - rdev->pm.power_state[state_index].clock_info[mode_index].voltage.voltage = - clock_info->usVDDC; + /* voltage works differently on IGPs */ mode_index++; } else if (ASIC_IS_DCE4(rdev)) { struct _ATOM_PPLIB_EVERGREEN_CLOCK_INFO *clock_info = -- cgit v1.1 From 4d60173fc1b12b0c308f861620fe8e2a84f6e5da Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Mon, 7 Jun 2010 18:15:18 -0400 Subject: drm/radeon/kms/pm: track current voltage (v2) track the current voltage level and avoid setting it if the requested voltage is already set. v2: check voltage type before checking current voltage Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/evergreen.c | 8 ++++++-- drivers/gpu/drm/radeon/r600.c | 9 ++++++--- drivers/gpu/drm/radeon/radeon.h | 1 + drivers/gpu/drm/radeon/radeon_atombios.c | 1 + drivers/gpu/drm/radeon/radeon_pm.c | 1 + drivers/gpu/drm/radeon/rv770.c | 9 +++++++-- 6 files changed, 22 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 49c94ae..b86d6ac 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -45,8 +45,12 @@ void evergreen_pm_misc(struct radeon_device *rdev) struct radeon_power_state *ps = &rdev->pm.power_state[requested_index]; struct radeon_voltage *voltage = &ps->clock_info[0].voltage; - if ((voltage->type == VOLTAGE_SW) && voltage->voltage) - radeon_atom_set_voltage(rdev, voltage->voltage); + if ((voltage->type == VOLTAGE_SW) && voltage->voltage) { + if (voltage->voltage != rdev->pm.current_vddc) { + radeon_atom_set_voltage(rdev, voltage->voltage); + rdev->pm.current_vddc = voltage->voltage; + } + } } void evergreen_pm_prepare(struct radeon_device *rdev) diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index d152cec..acec26b 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -561,9 +561,12 @@ void r600_pm_misc(struct radeon_device *rdev) struct radeon_power_state *ps = &rdev->pm.power_state[requested_index]; struct radeon_voltage *voltage = &ps->clock_info[0].voltage; - if ((voltage->type == VOLTAGE_SW) && voltage->voltage) - radeon_atom_set_voltage(rdev, voltage->voltage); - + if ((voltage->type == VOLTAGE_SW) && voltage->voltage) { + if (voltage->voltage != rdev->pm.current_vddc) { + radeon_atom_set_voltage(rdev, voltage->voltage); + rdev->pm.current_vddc = voltage->voltage; + } + } } bool r600_gui_idle(struct radeon_device *rdev) diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 2ad0e03..8e1d44c 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -748,6 +748,7 @@ struct radeon_pm { int default_power_state_index; u32 current_sclk; u32 current_mclk; + u32 current_vddc; struct radeon_i2c_chan *i2c_bus; /* selected pm method */ enum radeon_pm_method pm_method; diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index f0fcd6c..99bd8a9 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1966,6 +1966,7 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev) rdev->pm.current_power_state_index = rdev->pm.default_power_state_index; rdev->pm.current_clock_mode_index = 0; + rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage; } void radeon_atom_set_clock_gating(struct radeon_device *rdev, int enable) diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index fcdf1db..f2e1c60 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -387,6 +387,7 @@ void radeon_pm_resume(struct radeon_device *rdev) rdev->pm.current_clock_mode_index = 0; rdev->pm.current_sclk = rdev->clock.default_sclk; rdev->pm.current_mclk = rdev->clock.default_mclk; + rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage; mutex_unlock(&rdev->pm.mutex); radeon_pm_compute_clocks(rdev); } diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 33952da..7bde6ee 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -48,8 +48,13 @@ void rv770_pm_misc(struct radeon_device *rdev) struct radeon_power_state *ps = &rdev->pm.power_state[requested_index]; struct radeon_voltage *voltage = &ps->clock_info[0].voltage; - if ((voltage->type == VOLTAGE_SW) && voltage->voltage) - radeon_atom_set_voltage(rdev, voltage->voltage); + + if ((voltage->type == VOLTAGE_SW) && voltage->voltage) { + if (voltage->voltage != rdev->pm.current_vddc) { + radeon_atom_set_voltage(rdev, voltage->voltage); + rdev->pm.current_vddc = voltage->voltage; + } + } } /* -- cgit v1.1 From a081a9d6f566160bc4c08a85b74d817e983595ab Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Mon, 7 Jun 2010 18:20:25 -0400 Subject: drm/radeon/kms/r600+: use voltage from requested clock mode (v3) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes FDO bug #28375, it's kind of regression, so quite important to have it for .35. V2: Fix on RV770+ as well. All other chipsets have only one clock mode per state. V3: I'm out of luck today. Grepped for voltage in r*.c and missed evergreen. agd5f: rebased Signed-off-by: Rafał Miłecki Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/evergreen.c | 7 ++++--- drivers/gpu/drm/radeon/r600.c | 7 ++++--- drivers/gpu/drm/radeon/rv770.c | 8 ++++---- 3 files changed, 12 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index b86d6ac..b2b7c11 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -41,9 +41,10 @@ void evergreen_fini(struct radeon_device *rdev); void evergreen_pm_misc(struct radeon_device *rdev) { - int requested_index = rdev->pm.requested_power_state_index; - struct radeon_power_state *ps = &rdev->pm.power_state[requested_index]; - struct radeon_voltage *voltage = &ps->clock_info[0].voltage; + int req_ps_idx = rdev->pm.requested_power_state_index; + int req_cm_idx = rdev->pm.requested_clock_mode_index; + struct radeon_power_state *ps = &rdev->pm.power_state[req_ps_idx]; + struct radeon_voltage *voltage = &ps->clock_info[req_cm_idx].voltage; if ((voltage->type == VOLTAGE_SW) && voltage->voltage) { if (voltage->voltage != rdev->pm.current_vddc) { diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index acec26b..7b55391 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -557,9 +557,10 @@ void r600_pm_init_profile(struct radeon_device *rdev) void r600_pm_misc(struct radeon_device *rdev) { - int requested_index = rdev->pm.requested_power_state_index; - struct radeon_power_state *ps = &rdev->pm.power_state[requested_index]; - struct radeon_voltage *voltage = &ps->clock_info[0].voltage; + int req_ps_idx = rdev->pm.requested_power_state_index; + int req_cm_idx = rdev->pm.requested_clock_mode_index; + struct radeon_power_state *ps = &rdev->pm.power_state[req_ps_idx]; + struct radeon_voltage *voltage = &ps->clock_info[req_cm_idx].voltage; if ((voltage->type == VOLTAGE_SW) && voltage->voltage) { if (voltage->voltage != rdev->pm.current_vddc) { diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 7bde6ee..e8fb8b6 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -44,10 +44,10 @@ void rv770_fini(struct radeon_device *rdev); void rv770_pm_misc(struct radeon_device *rdev) { - int requested_index = rdev->pm.requested_power_state_index; - struct radeon_power_state *ps = &rdev->pm.power_state[requested_index]; - struct radeon_voltage *voltage = &ps->clock_info[0].voltage; - + int req_ps_idx = rdev->pm.requested_power_state_index; + int req_cm_idx = rdev->pm.requested_clock_mode_index; + struct radeon_power_state *ps = &rdev->pm.power_state[req_ps_idx]; + struct radeon_voltage *voltage = &ps->clock_info[req_cm_idx].voltage; if ((voltage->type == VOLTAGE_SW) && voltage->voltage) { if (voltage->voltage != rdev->pm.current_vddc) { -- cgit v1.1 From 0fcbe9473ac9c53463a61c9c83db8293bee15d12 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Mon, 7 Jun 2010 18:25:21 -0400 Subject: drm/radeon/kms: add trivial debugging for voltage MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit agd5f: rebased Signed-off-by: Rafał Miłecki Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/evergreen.c | 1 + drivers/gpu/drm/radeon/r600.c | 1 + drivers/gpu/drm/radeon/radeon_pm.c | 2 ++ drivers/gpu/drm/radeon/rv770.c | 1 + 4 files changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index b2b7c11..4b6623d 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -50,6 +50,7 @@ void evergreen_pm_misc(struct radeon_device *rdev) if (voltage->voltage != rdev->pm.current_vddc) { radeon_atom_set_voltage(rdev, voltage->voltage); rdev->pm.current_vddc = voltage->voltage; + DRM_DEBUG("Setting: v: %d\n", voltage->voltage); } } } diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 7b55391..0e91871 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -566,6 +566,7 @@ void r600_pm_misc(struct radeon_device *rdev) if (voltage->voltage != rdev->pm.current_vddc) { radeon_atom_set_voltage(rdev, voltage->voltage); rdev->pm.current_vddc = voltage->voltage; + DRM_DEBUG("Setting: v: %d\n", voltage->voltage); } } } diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index f2e1c60..19fb365 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -699,6 +699,8 @@ static int radeon_debugfs_pm_info(struct seq_file *m, void *data) seq_printf(m, "default memory clock: %u0 kHz\n", rdev->clock.default_mclk); if (rdev->asic->get_memory_clock) seq_printf(m, "current memory clock: %u0 kHz\n", radeon_get_memory_clock(rdev)); + if (rdev->pm.current_vddc) + seq_printf(m, "voltage: %u mV\n", rdev->pm.current_vddc); if (rdev->asic->get_pcie_lanes) seq_printf(m, "PCIE lanes: %d\n", radeon_get_pcie_lanes(rdev)); diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index e8fb8b6..cec536c 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -53,6 +53,7 @@ void rv770_pm_misc(struct radeon_device *rdev) if (voltage->voltage != rdev->pm.current_vddc) { radeon_atom_set_voltage(rdev, voltage->voltage); rdev->pm.current_vddc = voltage->voltage; + DRM_DEBUG("Setting: v: %d\n", voltage->voltage); } } } -- cgit v1.1 From f712d0c7e726ccbf2ab668cc30f307ecf37adf4f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Mon, 7 Jun 2010 18:29:44 -0400 Subject: drm/radeon/kms/pm: resurrect printing power states MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit debug only agd5f: rebased Signed-off-by: Rafał Miłecki Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_pm.c | 45 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 19fb365..63f679a 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -33,6 +33,14 @@ #define RADEON_WAIT_VBLANK_TIMEOUT 200 #define RADEON_WAIT_IDLE_TIMEOUT 200 +static const char *radeon_pm_state_type_name[5] = { + "Default", + "Powersave", + "Battery", + "Balanced", + "Performance", +}; + static void radeon_dynpm_idle_work_handler(struct work_struct *work); static int radeon_debugfs_pm_init(struct radeon_device *rdev); static bool radeon_pm_in_vbl(struct radeon_device *rdev); @@ -278,6 +286,42 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev) mutex_unlock(&rdev->ddev->struct_mutex); } +static void radeon_pm_print_states(struct radeon_device *rdev) +{ + int i, j; + struct radeon_power_state *power_state; + struct radeon_pm_clock_info *clock_info; + + DRM_DEBUG("%d Power State(s)\n", rdev->pm.num_power_states); + for (i = 0; i < rdev->pm.num_power_states; i++) { + power_state = &rdev->pm.power_state[i]; + DRM_DEBUG("State %d: %s\n", i, + radeon_pm_state_type_name[power_state->type]); + if (i == rdev->pm.default_power_state_index) + DRM_DEBUG("\tDefault"); + if ((rdev->flags & RADEON_IS_PCIE) && !(rdev->flags & RADEON_IS_IGP)) + DRM_DEBUG("\t%d PCIE Lanes\n", power_state->pcie_lanes); + if (power_state->flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY) + DRM_DEBUG("\tSingle display only\n"); + DRM_DEBUG("\t%d Clock Mode(s)\n", power_state->num_clock_modes); + for (j = 0; j < power_state->num_clock_modes; j++) { + clock_info = &(power_state->clock_info[j]); + if (rdev->flags & RADEON_IS_IGP) + DRM_DEBUG("\t\t%d e: %d%s\n", + j, + clock_info->sclk * 10, + clock_info->flags & RADEON_PM_MODE_NO_DISPLAY ? "\tNo display only" : ""); + else + DRM_DEBUG("\t\t%d e: %d\tm: %d\tv: %d%s\n", + j, + clock_info->sclk * 10, + clock_info->mclk * 10, + clock_info->voltage.voltage, + clock_info->flags & RADEON_PM_MODE_NO_DISPLAY ? "\tNo display only" : ""); + } + } +} + static ssize_t radeon_get_pm_profile(struct device *dev, struct device_attribute *attr, char *buf) @@ -410,6 +454,7 @@ int radeon_pm_init(struct radeon_device *rdev) radeon_atombios_get_power_modes(rdev); else radeon_combios_get_power_modes(rdev); + radeon_pm_print_states(rdev); radeon_pm_init_profile(rdev); } -- cgit v1.1 From 1eb38100abc467f1133e548d82ab171cab34292b Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 1 Jun 2010 13:40:41 +1000 Subject: drm/nouveau: match U/DP script against SOR link It appears version 0x21 'U' and 'd' tables require us to take the SOR link into account when selecting the appropriate table for a particular output. Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie --- drivers/gpu/drm/nouveau/nouveau_bios.c | 23 ++++++++++++++++++++--- 1 file changed, 20 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 9ba2dea..47a27a4 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -3920,7 +3920,8 @@ int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, b static uint8_t * bios_output_config_match(struct drm_device *dev, struct dcb_entry *dcbent, - uint16_t record, int record_len, int record_nr) + uint16_t record, int record_len, int record_nr, + bool match_link) { struct drm_nouveau_private *dev_priv = dev->dev_private; struct nvbios *bios = &dev_priv->vbios; @@ -3928,12 +3929,28 @@ bios_output_config_match(struct drm_device *dev, struct dcb_entry *dcbent, uint16_t table; int i, v; + switch (dcbent->type) { + case OUTPUT_TMDS: + case OUTPUT_LVDS: + case OUTPUT_DP: + break; + default: + match_link = false; + break; + } + for (i = 0; i < record_nr; i++, record += record_len) { table = ROM16(bios->data[record]); if (!table) continue; entry = ROM32(bios->data[table]); + if (match_link) { + v = (entry & 0x00c00000) >> 22; + if (!(v & dcbent->sorconf.link)) + continue; + } + v = (entry & 0x000f0000) >> 16; if (!(v & dcbent->or)) continue; @@ -3975,7 +3992,7 @@ nouveau_bios_dp_table(struct drm_device *dev, struct dcb_entry *dcbent, *length = table[4]; return bios_output_config_match(dev, dcbent, bios->display.dp_table_ptr + table[1], - table[2], table[3]); + table[2], table[3], table[0] >= 0x21); } int @@ -4064,7 +4081,7 @@ nouveau_bios_run_display_table(struct drm_device *dev, struct dcb_entry *dcbent, dcbent->type, dcbent->location, dcbent->or); otable = bios_output_config_match(dev, dcbent, table[1] + bios->display.script_table_ptr, - table[2], table[3]); + table[2], table[3], table[0] >= 0x21); if (!otable) { NV_ERROR(dev, "Couldn't find matching output script table\n"); return 1; -- cgit v1.1 From 6d696305530c0b3fcd7d15ad87d7203cb53df5b7 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Wed, 2 Jun 2010 10:16:24 +1000 Subject: drm/nouveau: completely fail init if we fail to map the PRAMIN BAR On cards where there's a specific BAR for PRAMIN, we used to try and fall back to the "legacy" aperture within the mmio BAR. This is doomed to cause problems, so lets just fail completely as there's obviously something else very wrong anyway. Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie --- drivers/gpu/drm/nouveau/nouveau_state.c | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c index 147e59c..b02a231 100644 --- a/drivers/gpu/drm/nouveau/nouveau_state.c +++ b/drivers/gpu/drm/nouveau/nouveau_state.c @@ -779,29 +779,24 @@ int nouveau_load(struct drm_device *dev, unsigned long flags) return ret; } - /* map larger RAMIN aperture on NV40 cards */ - dev_priv->ramin = NULL; + /* Map PRAMIN BAR, or on older cards, the aperture withing BAR0 */ if (dev_priv->card_type >= NV_40) { int ramin_bar = 2; if (pci_resource_len(dev->pdev, ramin_bar) == 0) ramin_bar = 3; dev_priv->ramin_size = pci_resource_len(dev->pdev, ramin_bar); - dev_priv->ramin = ioremap( - pci_resource_start(dev->pdev, ramin_bar), + dev_priv->ramin = + ioremap(pci_resource_start(dev->pdev, ramin_bar), dev_priv->ramin_size); if (!dev_priv->ramin) { - NV_ERROR(dev, "Failed to init RAMIN mapping, " - "limited instance memory available\n"); + NV_ERROR(dev, "Failed to PRAMIN BAR"); + return -ENOMEM; } - } - - /* On older cards (or if the above failed), create a map covering - * the BAR0 PRAMIN aperture */ - if (!dev_priv->ramin) { + } else { dev_priv->ramin_size = 1 * 1024 * 1024; dev_priv->ramin = ioremap(mmio_start_offs + NV_RAMIN, - dev_priv->ramin_size); + dev_priv->ramin_size); if (!dev_priv->ramin) { NV_ERROR(dev, "Failed to map BAR0 PRAMIN.\n"); return -ENOMEM; -- cgit v1.1 From 55a4c5c515c1f4b4bde00c443e71ff9f3822013e Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 22 Apr 2010 11:40:53 +0200 Subject: nouveau: off by one in nv50_gpio_location() If "gpio->line" is 32 then "nv50_gpio_reg[gpio->line >> 3]" reads past the end of the array. Signed-off-by: Dan Carpenter Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie --- drivers/gpu/drm/nouveau/nv50_gpio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/nv50_gpio.c b/drivers/gpu/drm/nouveau/nv50_gpio.c index c61782b..bb47ad7 100644 --- a/drivers/gpu/drm/nouveau/nv50_gpio.c +++ b/drivers/gpu/drm/nouveau/nv50_gpio.c @@ -31,7 +31,7 @@ nv50_gpio_location(struct dcb_gpio_entry *gpio, uint32_t *reg, uint32_t *shift) { const uint32_t nv50_gpio_reg[4] = { 0xe104, 0xe108, 0xe280, 0xe284 }; - if (gpio->line > 32) + if (gpio->line >= 32) return -EINVAL; *reg = nv50_gpio_reg[gpio->line >> 3]; -- cgit v1.1 From 75047944480a33afad76a272b21116d032ba61fa Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 25 May 2010 11:52:27 +0200 Subject: drm/nouveau: off by one in init_i2c_device_find() dcb->i2c[] has DCB_MAX_NUM_I2C_ENTRIES entries. Signed-off-by: Dan Carpenter Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie --- drivers/gpu/drm/nouveau/nouveau_bios.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 47a27a4..fc924b6 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -834,7 +834,7 @@ init_i2c_device_find(struct drm_device *dev, int i2c_index) if (i2c_index == 0x81) i2c_index = (dcb->i2c_default_indices & 0xf0) >> 4; - if (i2c_index > DCB_MAX_NUM_I2C_ENTRIES) { + if (i2c_index >= DCB_MAX_NUM_I2C_ENTRIES) { NV_ERROR(dev, "invalid i2c_index 0x%x\n", i2c_index); return NULL; } -- cgit v1.1 From 4eb3033c72099fab3536ed8ac54a5dc99f0832d7 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Mon, 7 Jun 2010 13:59:40 +1000 Subject: drm/nv50: fix iommu errors caused by device reading from address 0 Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie --- drivers/gpu/drm/nouveau/nv50_fb.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/nouveau/nv50_fb.c b/drivers/gpu/drm/nouveau/nv50_fb.c index a95e694..32611bd 100644 --- a/drivers/gpu/drm/nouveau/nv50_fb.c +++ b/drivers/gpu/drm/nouveau/nv50_fb.c @@ -6,10 +6,16 @@ int nv50_fb_init(struct drm_device *dev) { - /* This is needed to get meaningful information from 100c90 - * on traps. No idea what these values mean exactly. */ struct drm_nouveau_private *dev_priv = dev->dev_private; + /* Not a clue what this is exactly. Without pointing it at a + * scratch page, VRAM->GART blits with M2MF (as in DDX DFS) + * cause IOMMU "read from address 0" errors (rh#561267) + */ + nv_wr32(dev, 0x100c08, dev_priv->gart_info.sg_dummy_bus >> 8); + + /* This is needed to get meaningful information from 100c90 + * on traps. No idea what these values mean exactly. */ switch (dev_priv->chipset) { case 0x50: nv_wr32(dev, 0x100c90, 0x0707ff); -- cgit v1.1 From d294ed69408b54c18f0420516ea057b2a734624d Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 8 Jun 2010 13:04:50 +1000 Subject: drm/radeon: reset i2c valid to avoid incorrect tv-out polling. We really don't want to be polling tv-out but since we weren't forcing the i2c lines to invalid (tv-out has no DDC), we were adding tv connectors to the polling setup and this was causing blinking on secondary displays. This fixes the regression Torsten reported. Reported-by: Torsten Kaiser Tested-by: Torsten Kaiser Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_combios.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index f6f907e..1bee2f9 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -2026,6 +2026,7 @@ bool radeon_get_legacy_connector_info_from_bios(struct drm_device *dev) combios_setup_i2c_bus(rdev, RADEON_GPIO_CRT2_DDC); break; default: + ddc_i2c.valid = false; break; } @@ -2339,6 +2340,7 @@ bool radeon_get_legacy_connector_info_from_bios(struct drm_device *dev) if (RBIOS8(tv_info + 6) == 'T') { if (radeon_apply_legacy_tv_quirks(dev)) { hpd.hpd = RADEON_HPD_NONE; + ddc_i2c.valid = false; radeon_add_legacy_encoder(dev, radeon_get_encoder_id (dev, -- cgit v1.1 From b62e948fd00bda1be2af31b591e5284374de551f Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 8 Jun 2010 10:42:28 +1000 Subject: drm/radeon: don't poll tv dac if crtc2 is in use. So when we added output polling, we'd suddenly use this code more often, and the fact that it always takes over crtc2 and messes with it during probing isn't what we really want to be happening. A more complete fix would to change it to use whatever crtc was free at the time, but for now lets stay simple and just don't poll if crtc2 is already in use. Although a more correct fix was found I suspect we should do this as well, until we get a chance to readdres the tv out polling issues. Reported-by: Torsten Kaiser Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_legacy_encoders.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index 5a13b3e..5b07b88 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -1168,6 +1168,17 @@ static enum drm_connector_status radeon_legacy_tv_dac_detect(struct drm_encoder struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder); struct radeon_encoder_tv_dac *tv_dac = radeon_encoder->enc_priv; bool color = true; + struct drm_crtc *crtc; + + /* find out if crtc2 is in use or if this encoder is using it */ + list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc); + if ((radeon_crtc->crtc_id == 1) && crtc->enabled) { + if (encoder->crtc != crtc) { + return connector_status_disconnected; + } + } + } if (connector->connector_type == DRM_MODE_CONNECTOR_SVIDEO || connector->connector_type == DRM_MODE_CONNECTOR_Composite || -- cgit v1.1 From cd9b6fdf798841eb15253f928e762eee5260d347 Mon Sep 17 00:00:00 2001 From: Oskar Schirmer Date: Tue, 8 Jun 2010 01:12:22 -0700 Subject: Input: ad7877 - fix spi word size to 16 bit MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit With no word size given in the users platform data, a generic spi host controller driver will assume a default word size of eight bit. This causes transmission to be performed bytewise, which will fail on little endian machines for sure. Failure on big endian depends on usage of slave select to mark word boundaries. Anyway, ad7877 is specified to work with 16 bit per word, so unconditionally set the word size accordingly. Flag an error where 16 bit per word is not available. Signed-off-by: Oskar Schirmer Signed-off-by: Daniel Glöckner Signed-off-by: Oliver Schneidewind Signed-off-by: Dmitry Torokhov --- drivers/input/touchscreen/ad7877.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c index 0d2d7e5..5f0221c 100644 --- a/drivers/input/touchscreen/ad7877.c +++ b/drivers/input/touchscreen/ad7877.c @@ -679,6 +679,13 @@ static int __devinit ad7877_probe(struct spi_device *spi) return -EINVAL; } + spi->bits_per_word = 16; + err = spi_setup(spi); + if (err) { + dev_dbg(&spi->dev, "spi master doesn't support 16 bits/word\n"); + return err; + } + ts = kzalloc(sizeof(struct ad7877), GFP_KERNEL); input_dev = input_allocate_device(); if (!ts || !input_dev) { -- cgit v1.1 From c2f0e8c803ceba530060ec9bb9c74a06c2c3d833 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Tue, 8 Jun 2010 18:58:09 +0200 Subject: [S390] appldata/extmem/kvm: add missing GFP_KERNEL flag Add missing GFP flag to memory allocations. The part in cio only changes a comment. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- drivers/s390/cio/itcw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/s390/cio/itcw.c b/drivers/s390/cio/itcw.c index 17da9ab..a0ae295 100644 --- a/drivers/s390/cio/itcw.c +++ b/drivers/s390/cio/itcw.c @@ -42,7 +42,7 @@ * size_t size; * * size = itcw_calc_size(1, 2, 0); - * buffer = kmalloc(size, GFP_DMA); + * buffer = kmalloc(size, GFP_KERNEL | GFP_DMA); * if (!buffer) * return -ENOMEM; * itcw = itcw_init(buffer, size, ITCW_OP_READ, 1, 2, 0); -- cgit v1.1 From 6db6340c42d027b6364d49fa99d69019aca24de4 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 7 Jun 2010 21:20:38 +0200 Subject: iwlwifi: add missing rcu_read_lock Using ieee80211_find_sta() needs to be under RCU read lock, which iwlwifi currently misses, so fix it. Cc: stable@kernel.org Reported-by: Miles Lane Signed-off-by: Johannes Berg Acked-by: Reinette Chatre Tested-by: Miles Lane Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-agn-tx.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c index c402bfc..a732f10 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -1125,6 +1125,7 @@ static void iwlagn_tx_status(struct iwl_priv *priv, struct sk_buff *skb) struct ieee80211_sta *sta; struct iwl_station_priv *sta_priv; + rcu_read_lock(); sta = ieee80211_find_sta(priv->vif, hdr->addr1); if (sta) { sta_priv = (void *)sta->drv_priv; @@ -1133,6 +1134,7 @@ static void iwlagn_tx_status(struct iwl_priv *priv, struct sk_buff *skb) atomic_dec_return(&sta_priv->pending_frames) == 0) ieee80211_sta_block_awake(priv->hw, sta, false); } + rcu_read_unlock(); ieee80211_tx_status_irqsafe(priv->hw, skb); } -- cgit v1.1 From af0d5cb908f7f9adeb5d3d3dbef64c644bb6809c Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Sat, 5 Jun 2010 22:52:21 +0200 Subject: hp_sdc_rtc: fix broken ioctl conversion MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 55929332c92 "drivers: Push down BKL into various drivers" introduced a regression in hp_sdc_rtc, caused by a missing change of the .unlocked_ioctl pointer to the newly introduced function. Fixes: drivers/input/misc/hp_sdc_rtc.c:681: warning: initialization from incompatible pointer type drivers/input/misc/hp_sdc_rtc.c:665: warning: ‘hp_sdc_rtc_unlocked_ioctl’ defined but not used Reported-by: Geert Uytterhoeven Signed-off-by: Arnd Bergmann Acked-by: Geert Uytterhoeven Signed-off-by: Frederic Weisbecker --- drivers/input/misc/hp_sdc_rtc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c index e00a1cc..c190664 100644 --- a/drivers/input/misc/hp_sdc_rtc.c +++ b/drivers/input/misc/hp_sdc_rtc.c @@ -678,7 +678,7 @@ static const struct file_operations hp_sdc_rtc_fops = { .llseek = no_llseek, .read = hp_sdc_rtc_read, .poll = hp_sdc_rtc_poll, - .unlocked_ioctl = hp_sdc_rtc_ioctl, + .unlocked_ioctl = hp_sdc_rtc_unlocked_ioctl, .open = hp_sdc_rtc_open, .fasync = hp_sdc_rtc_fasync, }; -- cgit v1.1 From 8d86dc6a5bcd0f1d5b9364d43843f1bb4b15f57a Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 8 Jun 2010 20:16:28 -0700 Subject: Revert "drm/i915: Don't enable pipe/plane/VCO early (wait for DPMS on)." This reverts commit cfecde435dda78248d6fcdc424bed68d5db6be0b, since it seems to cause some systems to not come up with any video output at all (or video that only comes on when X starts up). Fixes bugzilla: http://bugzilla.kernel.org/show_bug.cgi?id=16163 Reported-and-tested-by: David John Tested-by: Nick Bowler Acked-by: Carl Worth Signed-off-by: Linus Torvalds --- drivers/gpu/drm/i915/intel_display.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 2861da3..cc8131f 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3653,6 +3653,11 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, pipeconf &= ~PIPEACONF_DOUBLE_WIDE; } + dspcntr |= DISPLAY_PLANE_ENABLE; + pipeconf |= PIPEACONF_ENABLE; + dpll |= DPLL_VCO_ENABLE; + + /* Disable the panel fitter if it was on our pipe */ if (!HAS_PCH_SPLIT(dev) && intel_panel_fitter_pipe(dev) == pipe) I915_WRITE(PFIT_CONTROL, 0); -- cgit v1.1 From f5dec51172b81db226a23f309bc737ad021af35b Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 9 Jun 2010 08:13:06 -0700 Subject: Input: sysrq - fix "stuck" SysRq mode MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This shoud fix the problem with SysRq mode staying half-way enabled and interfereing with normal PrtScrn operation after user presses ALT for the first time. Reported-and-tested-by: Éric Piel Signed-off-by: Dmitry Torokhov --- drivers/char/sysrq.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c index 5d15630..5d64e3a 100644 --- a/drivers/char/sysrq.c +++ b/drivers/char/sysrq.c @@ -580,8 +580,12 @@ static bool sysrq_filter(struct input_handle *handle, unsigned int type, case KEY_RIGHTALT: if (value) sysrq_alt = code; - else if (sysrq_down && code == sysrq_alt_use) - sysrq_down = false; + else { + if (sysrq_down && code == sysrq_alt_use) + sysrq_down = false; + + sysrq_alt = 0; + } break; case KEY_SYSRQ: -- cgit v1.1 From 79907d89c397b8bc2e05b347ec94e928ea919d33 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 9 Jun 2010 09:39:49 +0100 Subject: misc: Fix allocation 'borrowed' by vhost_net 10, 233 is allocated officially to /dev/kmview which is shipping in Ubuntu and Debian distributions. vhost_net seem to have borrowed it without making a proper request and this causes regressions in the other distributions. vhost_net can use a dynamic minor so use that instead. Also update the file with a comment to try and avoid future misunderstandings. cc: stable@kernel.org Signed-off-by: Alan Cox [ We should have caught this before 2.6.34 got released. - Linus ] Signed-off-by: Linus Torvalds --- drivers/vhost/net.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 0f41c91..df5b6b9 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -637,7 +637,7 @@ const static struct file_operations vhost_net_fops = { }; static struct miscdevice vhost_net_misc = { - VHOST_NET_MINOR, + MISC_DYNAMIC_MINOR, "vhost-net", &vhost_net_fops, }; -- cgit v1.1 From f3d56144c86beb25c7d206efa66d6efba908371c Mon Sep 17 00:00:00 2001 From: Daniel Walker Date: Mon, 24 May 2010 10:15:00 -0700 Subject: mmc: msm: fix compile error on MSM7x30 MSM7x30 isn't supported in this driver yet. If ones tried to compile it in with MSM7x30 configure you get, linux-2.6/drivers/mmc/host/msm_sdcc.c: In function 'msmsdcc_fifo_addr': linux-2.6/drivers/mmc/host/msm_sdcc.c:165: error: 'MSM_SDC1_PHYS' undeclared (first use in this function) linux-2.6/drivers/mmc/host/msm_sdcc.c:165: error: (Each undeclared identifier is reported only once linux-2.6/drivers/mmc/host/msm_sdcc.c:165: error: for each function it appears in.) linux-2.6/drivers/mmc/host/msm_sdcc.c:167: error: 'MSM_SDC2_PHYS' undeclared (first use in this function) linux-2.6/drivers/mmc/host/msm_sdcc.c:169: error: 'MSM_SDC3_PHYS' undeclared (first use in this function) linux-2.6/drivers/mmc/host/msm_sdcc.c:171: error: 'MSM_SDC4_PHYS' undeclared (first use in this function) So we add a Kconfig check to prevent this. Signed-off-by: Daniel Walker --- drivers/mmc/host/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig index e171e77..f06d06e 100644 --- a/drivers/mmc/host/Kconfig +++ b/drivers/mmc/host/Kconfig @@ -249,7 +249,7 @@ config MMC_IMX config MMC_MSM7X00A tristate "Qualcomm MSM 7X00A SDCC Controller Support" - depends on MMC && ARCH_MSM + depends on MMC && ARCH_MSM && !ARCH_MSM7X30 help This provides support for the SD/MMC cell found in the MSM 7X00A controllers from Qualcomm. -- cgit v1.1 From 75cbfb97a156dd3dabdc81295fb8144576332366 Mon Sep 17 00:00:00 2001 From: Thomas Renninger Date: Wed, 26 May 2010 17:03:33 +0200 Subject: ACPI: Do not try to set up acpi processor stuff on cores exceeding maxcpus= Patch is against latest Linus master branch and is expected to be safe bug fix. You get: ACPI: HARDWARE addr space,NOT supported yet for each ACPI defined CPU which status is active, but exceeds maxcpus= count. As these "not booted" CPUs do not run an idle routine and echo X >/proc/acpi/processor/*/throttling did not work I couldn't find a way to really access not onlined/booted machines. Still this should get fixed and /proc/acpi/processor/X dirs of cores exceeding maxcpus should not show up. I wonder whether this could get cleaned up by truncating possible cpu mask and nr_cpu_ids to setup_max_cpus early some day (and not exporting setup_max_cpus anymore then). But this needs touching of a lot other places... Signed-off-by: Thomas Renninger CC: travis@sgi.com CC: linux-acpi@vger.kernel.org CC: lenb@kernel.org Signed-off-by: Len Brown --- drivers/acpi/processor_driver.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index b1034a9..38ea0cc 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -581,6 +581,11 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device) return 0; } +#ifdef CONFIG_SMP + if (pr->id >= setup_max_cpus && pr->id != 0) + return 0; +#endif + BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0)); /* -- cgit v1.1 From e13647c158307f0e7ff5fc5bec34731f28917595 Mon Sep 17 00:00:00 2001 From: Richard Cochran Date: Mon, 7 Jun 2010 05:39:32 +0000 Subject: phylib: Add support for the LXT973 phy. This patch implements a work around for Erratum 5, "3.3 V Fiber Speed Selection." If the hardware wiring does not respect this erratum, then fiber optic mode will not work properly. Signed-off-by: Richard Cochran Signed-off-by: David S. Miller --- drivers/net/phy/lxt.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 50 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/phy/lxt.c b/drivers/net/phy/lxt.c index 8ee929b..dbd0034 100644 --- a/drivers/net/phy/lxt.c +++ b/drivers/net/phy/lxt.c @@ -53,6 +53,9 @@ #define MII_LXT971_ISR 19 /* Interrupt Status Register */ +/* register definitions for the 973 */ +#define MII_LXT973_PCR 16 /* Port Configuration Register */ +#define PCR_FIBER_SELECT 1 MODULE_DESCRIPTION("Intel LXT PHY driver"); MODULE_AUTHOR("Andy Fleming"); @@ -119,6 +122,33 @@ static int lxt971_config_intr(struct phy_device *phydev) return err; } +static int lxt973_probe(struct phy_device *phydev) +{ + int val = phy_read(phydev, MII_LXT973_PCR); + + if (val & PCR_FIBER_SELECT) { + /* + * If fiber is selected, then the only correct setting + * is 100Mbps, full duplex, and auto negotiation off. + */ + val = phy_read(phydev, MII_BMCR); + val |= (BMCR_SPEED100 | BMCR_FULLDPLX); + val &= ~BMCR_ANENABLE; + phy_write(phydev, MII_BMCR, val); + /* Remember that the port is in fiber mode. */ + phydev->priv = lxt973_probe; + } else { + phydev->priv = NULL; + } + return 0; +} + +static int lxt973_config_aneg(struct phy_device *phydev) +{ + /* Do nothing if port is in fiber mode. */ + return phydev->priv ? 0 : genphy_config_aneg(phydev); +} + static struct phy_driver lxt970_driver = { .phy_id = 0x78100000, .name = "LXT970", @@ -146,6 +176,18 @@ static struct phy_driver lxt971_driver = { .driver = { .owner = THIS_MODULE,}, }; +static struct phy_driver lxt973_driver = { + .phy_id = 0x00137a10, + .name = "LXT973", + .phy_id_mask = 0xfffffff0, + .features = PHY_BASIC_FEATURES, + .flags = 0, + .probe = lxt973_probe, + .config_aneg = lxt973_config_aneg, + .read_status = genphy_read_status, + .driver = { .owner = THIS_MODULE,}, +}; + static int __init lxt_init(void) { int ret; @@ -157,9 +199,15 @@ static int __init lxt_init(void) ret = phy_driver_register(&lxt971_driver); if (ret) goto err2; + + ret = phy_driver_register(&lxt973_driver); + if (ret) + goto err3; return 0; - err2: + err3: + phy_driver_unregister(&lxt971_driver); + err2: phy_driver_unregister(&lxt970_driver); err1: return ret; @@ -169,6 +217,7 @@ static void __exit lxt_exit(void) { phy_driver_unregister(&lxt970_driver); phy_driver_unregister(&lxt971_driver); + phy_driver_unregister(&lxt973_driver); } module_init(lxt_init); -- cgit v1.1 From 619baba195d92ec39379e24c151f4a640898d140 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Wed, 9 Jun 2010 16:27:08 -0700 Subject: gianfar: Revive the driver for eTSEC devices (disable timestamping) Since commit cc772ab7cdcaa24d1fae332d92a1602788644f7a ("gianfar: Add hardware RX timestamping support"), the driver no longer works on at least MPC8313ERDB and MPC8568EMDS boards (and possibly much more boards as well). That's how MPC8313 Reference Manual describes RCTRL_TS_ENABLE bit: Timestamp incoming packets as padding bytes. PAL field is set to 8 if the PAL field is programmed to less than 8. Must be set to zero if TMR_CTRL[TE]=0. I see that the commit above sets this bit, but it doesn't handle TMR_CTRL. Manfred probably had this bit set by the firmware for his boards. But obviously this isn't true for all boards in the wild. Also, I recall that Freescale BSPs were explicitly disabling the timestamping because of a performance drop. For now, the best way to deal with this is just disable the timestamping, and later we can discuss proper device tree bindings and implement enabling this feature via some property. Signed-off-by: Anton Vorontsov Signed-off-by: David S. Miller --- drivers/net/gianfar.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 1830f31..46c69cd 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -747,8 +747,7 @@ static int gfar_of_init(struct of_device *ofdev, struct net_device **pdev) FSL_GIANFAR_DEV_HAS_CSUM | FSL_GIANFAR_DEV_HAS_VLAN | FSL_GIANFAR_DEV_HAS_MAGIC_PACKET | - FSL_GIANFAR_DEV_HAS_EXTENDED_HASH | - FSL_GIANFAR_DEV_HAS_TIMER; + FSL_GIANFAR_DEV_HAS_EXTENDED_HASH; ctype = of_get_property(np, "phy-connection-type", NULL); -- cgit v1.1 From 81a95f049962ec20a9aed888e676208b206f0f2e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Timo=20Ter=C3=A4s?= Date: Wed, 9 Jun 2010 17:31:48 -0700 Subject: r8169: fix mdio_read and update mdio_write according to hw specs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Realtek confirmed that a 20us delay is needed after mdio_read and mdio_write operations. Reduce the delay in mdio_write, and add it to mdio_read too. Also add a comment that the 20us is from hw specs. Signed-off-by: Timo Teräs Acked-by: Francois Romieu Signed-off-by: David S. Miller --- drivers/net/r8169.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c index 03a8318..96b6cfb 100644 --- a/drivers/net/r8169.c +++ b/drivers/net/r8169.c @@ -560,10 +560,10 @@ static void mdio_write(void __iomem *ioaddr, int reg_addr, int value) udelay(25); } /* - * Some configurations require a small delay even after the write - * completed indication or the next write might fail. + * According to hardware specs a 20us delay is required after write + * complete indication, but before sending next command. */ - udelay(25); + udelay(20); } static int mdio_read(void __iomem *ioaddr, int reg_addr) @@ -583,6 +583,12 @@ static int mdio_read(void __iomem *ioaddr, int reg_addr) } udelay(25); } + /* + * According to hardware specs a 20us delay is required after read + * complete indication, but before sending next command. + */ + udelay(20); + return value; } -- cgit v1.1 From dd4c4f17d722ffeb2515bf781400675a30fcead7 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Fri, 28 May 2010 16:32:14 -0400 Subject: suspend: Move NVS save/restore code to generic suspend functionality Saving platform non-volatile state may be required for suspend to RAM as well as hibernation. Move it to more generic code. Signed-off-by: Matthew Garrett Acked-by: Rafael J. Wysocki Tested-by: Maxim Levitsky Signed-off-by: Len Brown --- drivers/acpi/sleep.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 4ab2275..bcaa6ef 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -393,7 +393,7 @@ static int acpi_hibernation_begin(void) { int error; - error = s4_no_nvs ? 0 : hibernate_nvs_alloc(); + error = s4_no_nvs ? 0 : suspend_nvs_alloc(); if (!error) { acpi_target_sleep_state = ACPI_STATE_S4; acpi_sleep_tts_switch(acpi_target_sleep_state); @@ -407,7 +407,7 @@ static int acpi_hibernation_pre_snapshot(void) int error = acpi_pm_prepare(); if (!error) - hibernate_nvs_save(); + suspend_nvs_save(); return error; } @@ -432,7 +432,7 @@ static int acpi_hibernation_enter(void) static void acpi_hibernation_finish(void) { - hibernate_nvs_free(); + suspend_nvs_free(); acpi_pm_finish(); } @@ -452,7 +452,7 @@ static void acpi_hibernation_leave(void) panic("ACPI S4 hardware signature mismatch"); } /* Restore the NVS memory area */ - hibernate_nvs_restore(); + suspend_nvs_restore(); } static int acpi_pm_pre_restore(void) @@ -501,7 +501,7 @@ static int acpi_hibernation_begin_old(void) if (!error) { if (!s4_no_nvs) - error = hibernate_nvs_alloc(); + error = suspend_nvs_alloc(); if (!error) acpi_target_sleep_state = ACPI_STATE_S4; } @@ -513,7 +513,7 @@ static int acpi_hibernation_pre_snapshot_old(void) int error = acpi_pm_disable_gpes(); if (!error) - hibernate_nvs_save(); + suspend_nvs_save(); return error; } -- cgit v1.1 From 2a6b69765ad794389f2fc3e14a0afa1a995221c2 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Fri, 28 May 2010 16:32:15 -0400 Subject: ACPI: Store NVS state even when entering suspend to RAM https://bugzilla.kernel.org/show_bug.cgi?id=13931 describes a bug where a system fails to successfully resume after the second suspend. Maxim Levitsky discovered that this could be rectified by forcibly saving and restoring the ACPI non-volatile state. The spec indicates that this is only required for S4, but testing the behaviour of Windows by adding an ACPI NVS region to qemu's e820 map and registering a custom memory read/write handler reveals that it's saved and restored even over suspend to RAM. We should mimic that behaviour to avoid other broken platforms. Signed-off-by: Matthew Garrett Signed-off-by: Len Brown --- drivers/acpi/sleep.c | 21 +++++++++++++-------- 1 file changed, 13 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index bcaa6ef..403daf0 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -112,6 +112,8 @@ static int __acpi_pm_prepare(void) { int error = acpi_sleep_prepare(acpi_target_sleep_state); + suspend_nvs_save(); + if (error) acpi_target_sleep_state = ACPI_STATE_S0; return error; @@ -140,6 +142,8 @@ static void acpi_pm_finish(void) { u32 acpi_state = acpi_target_sleep_state; + suspend_nvs_free(); + if (acpi_state == ACPI_STATE_S0) return; @@ -189,6 +193,11 @@ static int acpi_suspend_begin(suspend_state_t pm_state) u32 acpi_state = acpi_suspend_states[pm_state]; int error = 0; + error = suspend_nvs_alloc(); + + if (error) + return error; + if (sleep_states[acpi_state]) { acpi_target_sleep_state = acpi_state; acpi_sleep_tts_switch(acpi_target_sleep_state); @@ -264,6 +273,8 @@ static int acpi_suspend_enter(suspend_state_t pm_state) if (acpi_state == ACPI_STATE_S3) acpi_restore_state_mem(); + suspend_nvs_restore(); + return ACPI_SUCCESS(status) ? 0 : -EFAULT; } @@ -430,12 +441,6 @@ static int acpi_hibernation_enter(void) return ACPI_SUCCESS(status) ? 0 : -EFAULT; } -static void acpi_hibernation_finish(void) -{ - suspend_nvs_free(); - acpi_pm_finish(); -} - static void acpi_hibernation_leave(void) { /* @@ -473,7 +478,7 @@ static struct platform_hibernation_ops acpi_hibernation_ops = { .begin = acpi_hibernation_begin, .end = acpi_pm_end, .pre_snapshot = acpi_hibernation_pre_snapshot, - .finish = acpi_hibernation_finish, + .finish = acpi_pm_finish, .prepare = acpi_pm_prepare, .enter = acpi_hibernation_enter, .leave = acpi_hibernation_leave, @@ -526,7 +531,7 @@ static struct platform_hibernation_ops acpi_hibernation_ops_old = { .begin = acpi_hibernation_begin_old, .end = acpi_pm_end, .pre_snapshot = acpi_hibernation_pre_snapshot_old, - .finish = acpi_hibernation_finish, + .finish = acpi_pm_finish, .prepare = acpi_pm_disable_gpes, .enter = acpi_hibernation_enter, .leave = acpi_hibernation_leave, -- cgit v1.1 From 934231de706d2579fae14f5857fcd8de991009ff Mon Sep 17 00:00:00 2001 From: Liang Li Date: Thu, 10 Jun 2010 13:42:49 +0800 Subject: ACPI: fan: fix unbalanced code block The code block braced with CONFIG_ACPI_PROCFS is unblanced. When CONFIG_ACPI_PROCFS=n, kernel trace will be produced like: Call Trace: [] ? remove_proc_entry+0x20d/0x290 [] ? remove_proc_entry+0x20d/0x290 [] warn_slowpath_common+0x6c/0xc0 [] ? remove_proc_entry+0x20d/0x290 [] warn_slowpath_fmt+0x26/0x30 [] remove_proc_entry+0x20d/0x290 [] ? proc_register+0x117/0x1f0 [] ? proc_mkdir_mode+0x33/0x50 [] ? acpi_fan_init+0x0/0x2c [] acpi_fan_init+0x23/0x2c [] do_one_initcall+0x23/0x180 [] ? init_irq_proc+0x67/0x80 [] kernel_init+0x13c/0x20e [] ? schedule_tail+0x20/0x90 [] ? syscall_exit+0x5/0x16 [] ? kernel_init+0x0/0x20e [] ? kernel_init+0x0/0x20e [] kernel_thread_helper+0x6/0x30 ---[ end trace a7919e7f17c0a725 ]--- Then also bracket later error checking code with ACPI_PROCFS option to avoid mismatch problem. Signed-off-by: Liang Li Signed-off-by: Len Brown --- drivers/acpi/fan.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index acf2ab2..8a3b840 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -347,7 +347,6 @@ static int __init acpi_fan_init(void) { int result = 0; - #ifdef CONFIG_ACPI_PROCFS acpi_fan_dir = proc_mkdir(ACPI_FAN_CLASS, acpi_root_dir); if (!acpi_fan_dir) @@ -356,7 +355,9 @@ static int __init acpi_fan_init(void) result = acpi_bus_register_driver(&acpi_fan_driver); if (result < 0) { +#ifdef CONFIG_ACPI_PROCFS remove_proc_entry(ACPI_FAN_CLASS, acpi_root_dir); +#endif return -ENODEV; } -- cgit v1.1 From 4b1b29bc8801badd243694add02262e0955dde1b Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Tue, 8 Jun 2010 15:28:40 +0800 Subject: ACPI: Disable Vista compatibility for Sony VGN-NS50B_L Disable Vista compatibility for Sony VGN-NS50B_L. https://bugzilla.kernel.org/show_bug.cgi?id=12904#c46 Note that this change is a workaround, not a permanent fix. For the permanent fix is to figure out what compatibility means and to actually be compatible... Tested-by: Voldemar Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- drivers/acpi/blacklist.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index 2815df6..01381be 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -218,6 +218,14 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { }, }, { + .callback = dmi_disable_osi_vista, + .ident = "VGN-NS50B_L", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"), + }, + }, + { .callback = dmi_disable_osi_win7, .ident = "ASUS K50IJ", .matches = { -- cgit v1.1 From 14e45c15e1dcc4d972b41343661683efd60fed72 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 9 Jun 2010 14:01:54 +0200 Subject: sata_sil24: memset() overflow cb->atapi.cdb is an array of 16 u8 elements. The call too memset() would set the first part of the sge array to zero as well. It's not a packed struct. This one has been around for five years. I found it with Smatch. I think the reason no one has seen it before is because we normally call sil24_fill_sg() and that overwrites sge with proper information? Signed-off-by: Dan Carpenter Signed-off-by: Jeff Garzik --- drivers/ata/sata_sil24.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c index 70b58fe..a7f0139 100644 --- a/drivers/ata/sata_sil24.c +++ b/drivers/ata/sata_sil24.c @@ -865,7 +865,7 @@ static void sil24_qc_prep(struct ata_queued_cmd *qc) } else { prb = &cb->atapi.prb; sge = cb->atapi.sge; - memset(cb->atapi.cdb, 0, 32); + memset(cb->atapi.cdb, 0, sizeof(cb->atapi.cdb)); memcpy(cb->atapi.cdb, qc->cdb, qc->dev->cdb_len); if (ata_is_data(qc->tf.protocol)) { -- cgit v1.1 From 1082345290dbc66c19877662cb24c18ee4ae1296 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Thu, 10 Jun 2010 17:02:12 +0100 Subject: sata_sil24: Use memory barriers before issuing commands The data in the cmd_block buffers may reach the main memory after the writel() to the device ports. This patch introduces two calls to wmb() to ensure the relative ordering. Signed-off-by: Catalin Marinas Tested-by: Colin Tuckley Cc: Tejun Heo Cc: Jeff Garzik Signed-off-by: Jeff Garzik --- drivers/ata/sata_sil24.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/sata_sil24.c b/drivers/ata/sata_sil24.c index a7f0139..be7726d 100644 --- a/drivers/ata/sata_sil24.c +++ b/drivers/ata/sata_sil24.c @@ -622,6 +622,11 @@ static int sil24_exec_polled_cmd(struct ata_port *ap, int pmp, irq_enabled = readl(port + PORT_IRQ_ENABLE_SET); writel(PORT_IRQ_COMPLETE | PORT_IRQ_ERROR, port + PORT_IRQ_ENABLE_CLR); + /* + * The barrier is required to ensure that writes to cmd_block reach + * the memory before the write to PORT_CMD_ACTIVATE. + */ + wmb(); writel((u32)paddr, port + PORT_CMD_ACTIVATE); writel((u64)paddr >> 32, port + PORT_CMD_ACTIVATE + 4); @@ -895,6 +900,11 @@ static unsigned int sil24_qc_issue(struct ata_queued_cmd *qc) paddr = pp->cmd_block_dma + tag * sizeof(*pp->cmd_block); activate = port + PORT_CMD_ACTIVATE + tag * 8; + /* + * The barrier is required to ensure that writes to cmd_block reach + * the memory before the write to PORT_CMD_ACTIVATE. + */ + wmb(); writel((u32)paddr, activate); writel((u64)paddr >> 32, activate + 4); -- cgit v1.1 From 349124a00754129a5f1e43efa84733e364bf3749 Mon Sep 17 00:00:00 2001 From: "Figo.zhang" Date: Mon, 7 Jun 2010 21:13:22 +0000 Subject: net8139: fix a race at the end of NAPI fix a race at the end of NAPI complete processing, it had better do __napi_complete() first before re-enable interrupt. Signed-off-by:Figo.zhang Signed-off-by: David S. Miller --- drivers/net/8139cp.c | 2 +- drivers/net/8139too.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/8139cp.c b/drivers/net/8139cp.c index 9c14975..284a5f4 100644 --- a/drivers/net/8139cp.c +++ b/drivers/net/8139cp.c @@ -598,8 +598,8 @@ rx_next: goto rx_status_loop; spin_lock_irqsave(&cp->lock, flags); - cpw16_f(IntrMask, cp_intr_mask); __napi_complete(napi); + cpw16_f(IntrMask, cp_intr_mask); spin_unlock_irqrestore(&cp->lock, flags); } diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c index 80cd074..97d8068 100644 --- a/drivers/net/8139too.c +++ b/drivers/net/8139too.c @@ -2089,8 +2089,8 @@ static int rtl8139_poll(struct napi_struct *napi, int budget) * again when we think we are done. */ spin_lock_irqsave(&tp->lock, flags); - RTL_W16_F(IntrMask, rtl8139_intr_mask); __napi_complete(napi); + RTL_W16_F(IntrMask, rtl8139_intr_mask); spin_unlock_irqrestore(&tp->lock, flags); } spin_unlock(&tp->rx_lock); -- cgit v1.1 From a385a53e659b35ebee604889e21c40e5c336941f Mon Sep 17 00:00:00 2001 From: Inaky Perez-Gonzalez Date: Fri, 11 Jun 2010 11:51:20 -0700 Subject: wimax/i2400m: fix missing endian correction read in fw loader MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit i2400m_fw_hdr_check() was accessing hardware field bcf_hdr->module_type (little endian 32) without converting to host byte sex. Reported-by: Данилин Михаил Signed-off-by: Inaky Perez-Gonzalez --- drivers/net/wimax/i2400m/fw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wimax/i2400m/fw.c b/drivers/net/wimax/i2400m/fw.c index 3f283bf..1149135 100644 --- a/drivers/net/wimax/i2400m/fw.c +++ b/drivers/net/wimax/i2400m/fw.c @@ -1192,7 +1192,7 @@ int i2400m_fw_hdr_check(struct i2400m *i2400m, unsigned module_type, header_len, major_version, minor_version, module_id, module_vendor, date, size; - module_type = bcf_hdr->module_type; + module_type = le32_to_cpu(bcf_hdr->module_type); header_len = sizeof(u32) * le32_to_cpu(bcf_hdr->header_len); major_version = (le32_to_cpu(bcf_hdr->header_version) & 0xffff0000) >> 16; -- cgit v1.1 From f6d440daebd12be66ea1f834faf2966a49a07bd6 Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Thu, 3 Jun 2010 13:47:18 -0600 Subject: PCI: change resource collision messages from KERN_ERR to KERN_INFO We can often deal with PCI resource issues by moving devices around. In that case, there's no point in alarming the user with messages like these. There are many bug reports where the message itself is the only problem, e.g., https://bugs.launchpad.net/ubuntu/+source/linux/+bug/413419 . Signed-off-by: Bjorn Helgaas Signed-off-by: Jesse Barnes --- drivers/pci/setup-res.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c index 17bed18..92379e2 100644 --- a/drivers/pci/setup-res.c +++ b/drivers/pci/setup-res.c @@ -97,16 +97,16 @@ int pci_claim_resource(struct pci_dev *dev, int resource) root = pci_find_parent_resource(dev, res); if (!root) { - dev_err(&dev->dev, "no compatible bridge window for %pR\n", - res); + dev_info(&dev->dev, "no compatible bridge window for %pR\n", + res); return -EINVAL; } conflict = request_resource_conflict(root, res); if (conflict) { - dev_err(&dev->dev, - "address space collision: %pR conflicts with %s %pR\n", - res, conflict->name, conflict); + dev_info(&dev->dev, + "address space collision: %pR conflicts with %s %pR\n", + res, conflict->name, conflict); return -EBUSY; } -- cgit v1.1 From 3be434f0244ee059432f92de7e891ee514f41738 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Fri, 11 Jun 2010 13:08:37 -0700 Subject: Revert "PCI: create function symlinks in /sys/bus/pci/slots/N/" This reverts commit 75568f8094eb0333e9c2109b23cbc8b82d318a3c. Since they're just a convenience anyway, remove these symlinks since they're causing duplicate filename errors in the wild. Acked-by: Alex Chiang Signed-off-by: Jesse Barnes --- drivers/pci/pci-sysfs.c | 37 ------------------------------------- drivers/pci/slot.c | 48 ------------------------------------------------ 2 files changed, 85 deletions(-) (limited to 'drivers') diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index afd2fbf..c9957f6 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -1035,39 +1035,6 @@ error: return retval; } -static void pci_remove_slot_links(struct pci_dev *dev) -{ - char func[10]; - struct pci_slot *slot; - - sysfs_remove_link(&dev->dev.kobj, "slot"); - list_for_each_entry(slot, &dev->bus->slots, list) { - if (slot->number != PCI_SLOT(dev->devfn)) - continue; - snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn)); - sysfs_remove_link(&slot->kobj, func); - } -} - -static int pci_create_slot_links(struct pci_dev *dev) -{ - int result = 0; - char func[10]; - struct pci_slot *slot; - - list_for_each_entry(slot, &dev->bus->slots, list) { - if (slot->number != PCI_SLOT(dev->devfn)) - continue; - result = sysfs_create_link(&dev->dev.kobj, &slot->kobj, "slot"); - if (result) - goto out; - snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn)); - result = sysfs_create_link(&slot->kobj, &dev->dev.kobj, func); - } -out: - return result; -} - int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev) { int retval; @@ -1130,8 +1097,6 @@ int __must_check pci_create_sysfs_dev_files (struct pci_dev *pdev) if (retval) goto err_vga_file; - pci_create_slot_links(pdev); - return 0; err_vga_file: @@ -1181,8 +1146,6 @@ void pci_remove_sysfs_dev_files(struct pci_dev *pdev) if (!sysfs_initialized) return; - pci_remove_slot_links(pdev); - pci_remove_capabilities_sysfs(pdev); if (pdev->cfg_size < PCI_CFG_SPACE_EXP_SIZE) diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c index e0189cf..659eaa0 100644 --- a/drivers/pci/slot.c +++ b/drivers/pci/slot.c @@ -97,50 +97,6 @@ static ssize_t cur_speed_read_file(struct pci_slot *slot, char *buf) return bus_speed_read(slot->bus->cur_bus_speed, buf); } -static void remove_sysfs_files(struct pci_slot *slot) -{ - char func[10]; - struct list_head *tmp; - - list_for_each(tmp, &slot->bus->devices) { - struct pci_dev *dev = pci_dev_b(tmp); - if (PCI_SLOT(dev->devfn) != slot->number) - continue; - sysfs_remove_link(&dev->dev.kobj, "slot"); - - snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn)); - sysfs_remove_link(&slot->kobj, func); - } -} - -static int create_sysfs_files(struct pci_slot *slot) -{ - int result; - char func[10]; - struct list_head *tmp; - - list_for_each(tmp, &slot->bus->devices) { - struct pci_dev *dev = pci_dev_b(tmp); - if (PCI_SLOT(dev->devfn) != slot->number) - continue; - - result = sysfs_create_link(&dev->dev.kobj, &slot->kobj, "slot"); - if (result) - goto fail; - - snprintf(func, 10, "function%d", PCI_FUNC(dev->devfn)); - result = sysfs_create_link(&slot->kobj, &dev->dev.kobj, func); - if (result) - goto fail; - } - - return 0; - -fail: - remove_sysfs_files(slot); - return result; -} - static void pci_slot_release(struct kobject *kobj) { struct pci_dev *dev; @@ -153,8 +109,6 @@ static void pci_slot_release(struct kobject *kobj) if (PCI_SLOT(dev->devfn) == slot->number) dev->slot = NULL; - remove_sysfs_files(slot); - list_del(&slot->list); kfree(slot); @@ -346,8 +300,6 @@ placeholder: INIT_LIST_HEAD(&slot->list); list_add(&slot->list, &parent->slots); - create_sysfs_files(slot); - list_for_each_entry(dev, &parent->devices, bus_list) if (PCI_SLOT(dev->devfn) == slot_nr) dev->slot = slot; -- cgit v1.1 From a7ef7d1f5e898984c479e8c41ca702141bbadc78 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Wed, 9 Jun 2010 22:31:13 +0200 Subject: PCI: hotplug/cpqphp, fix NULL dereference There are devices out there which are PCI Hot-plug controllers with compaq PCI IDs, but are not bridges, hence have pdev->subordinate NULL. But cpqphp expects the pointer to be non-NULL. Add a check to the probe function to avoid oopses like: BUG: unable to handle kernel NULL pointer dereference at 00000050 IP: [] cpqhpc_probe+0x951/0x1120 [cpqphp] *pdpt = 0000000033779001 *pde = 0000000000000000 ... The device here was: 00:0b.0 PCI Hot-plug controller [0804]: Compaq Computer Corporation PCI Hotplug Controller [0e11:a0f7] (rev 11) Subsystem: Compaq Computer Corporation Device [0e11:a2f8] Signed-off-by: Jiri Slaby Cc: Greg KH Signed-off-by: Jesse Barnes --- drivers/pci/hotplug/cpqphp_core.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c index b3e5580..4952c3b 100644 --- a/drivers/pci/hotplug/cpqphp_core.c +++ b/drivers/pci/hotplug/cpqphp_core.c @@ -828,7 +828,14 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_name(pdev), err); return err; } + bus = pdev->subordinate; + if (!bus) { + dev_notice(&pdev->dev, "the device is not a bridge, " + "skipping\n"); + rc = -ENODEV; + goto err_disable_device; + } /* Need to read VID early b/c it's used to differentiate CPQ and INTC * discovery -- cgit v1.1 From a997ab332832519c2e292db13f509e4360495a5a Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sat, 12 Jun 2010 00:05:19 +0200 Subject: ACPI / ACPICA: Do not attempt to disable GPE when installing handler Commit 0f849d2cc6863c7874889ea60a871fb71399dd3f (ACPICA: Minimize the differences between linux GPE code and ACPICA code base) introduced a change attempting to disable a GPE before installing a handler for it in acpi_install_gpe_handler() which was incorrect. First, the GPE disabled by it is never enabled again (except during resume) which leads to battery insert/remove events not being reported on the Maxim Levitsky's machine. Second, the disabled GPE is still reported as enabled by the sysfs interface that only checks its enable register's enable_for_run mask. Revert this change for now, because it causes more damage to happen than the bug it was supposed to fix. Signed-off-by: Rafael J. Wysocki Reported-and-tested-by: Maxim Levitsky Signed-off-by: Len Brown --- drivers/acpi/acpica/evxface.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index cc82502..4a531cd 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c @@ -719,13 +719,6 @@ acpi_install_gpe_handler(acpi_handle gpe_device, handler->context = context; handler->method_node = gpe_event_info->dispatch.method_node; - /* Disable the GPE before installing the handler */ - - status = acpi_ev_disable_gpe(gpe_event_info); - if (ACPI_FAILURE (status)) { - goto unlock_and_exit; - } - /* Install the handler */ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); -- cgit v1.1 From e4e9a735991c80fb0fc1bd4a13a93681c3c17ce0 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 8 Jun 2010 10:48:26 +0200 Subject: ACPI / ACPICA: Use helper function for computing GPE masks In quite a few places ACPICA needs to compute a GPE enable mask with only one bit, corresponding to a given GPE, set. Currently, that computation is always open coded which leads to unnecessary code duplication. Fix this by introducing a helper function for computing one-bit GPE enable masks and using it where appropriate. Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- drivers/acpi/acpica/achware.h | 3 +++ drivers/acpi/acpica/evgpe.c | 7 +++--- drivers/acpi/acpica/hwgpe.c | 52 +++++++++++++++++++++++++++++++++---------- 3 files changed, 46 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h index 5900f13..c46277d 100644 --- a/drivers/acpi/acpica/achware.h +++ b/drivers/acpi/acpica/achware.h @@ -90,6 +90,9 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width); /* * hwgpe - GPE support */ +u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info, + struct acpi_gpe_register_info *gpe_register_info); + acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info); acpi_status diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index deb26f4..57eeb3b 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -69,7 +69,7 @@ acpi_status acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info) { struct acpi_gpe_register_info *gpe_register_info; - u8 register_bit; + u32 register_bit; ACPI_FUNCTION_TRACE(ev_update_gpe_enable_masks); @@ -78,9 +78,8 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info) return_ACPI_STATUS(AE_NOT_EXIST); } - register_bit = (u8) - (1 << - (gpe_event_info->gpe_number - gpe_register_info->base_gpe_number)); + register_bit = acpi_hw_gpe_register_bit(gpe_event_info, + gpe_register_info); /* Clear the wake/run bits up front */ diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c index bd72319..d989b8e 100644 --- a/drivers/acpi/acpica/hwgpe.c +++ b/drivers/acpi/acpica/hwgpe.c @@ -57,6 +57,27 @@ acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, /****************************************************************************** * + * FUNCTION: acpi_hw_gpe_register_bit + * + * PARAMETERS: gpe_event_info - Info block for the GPE + * gpe_register_info - Info block for the GPE register + * + * RETURN: Status + * + * DESCRIPTION: Compute GPE enable mask with one bit corresponding to the given + * GPE set. + * + ******************************************************************************/ + +u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info, + struct acpi_gpe_register_info *gpe_register_info) +{ + return (u32)1 << (gpe_event_info->gpe_number - + gpe_register_info->base_gpe_number); +} + +/****************************************************************************** + * * FUNCTION: acpi_hw_low_disable_gpe * * PARAMETERS: gpe_event_info - Info block for the GPE to be disabled @@ -72,6 +93,7 @@ acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) struct acpi_gpe_register_info *gpe_register_info; acpi_status status; u32 enable_mask; + u32 register_bit; /* Get the info block for the entire GPE register */ @@ -89,9 +111,9 @@ acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) /* Clear just the bit that corresponds to this GPE */ - ACPI_CLEAR_BIT(enable_mask, ((u32)1 << - (gpe_event_info->gpe_number - - gpe_register_info->base_gpe_number))); + register_bit = acpi_hw_gpe_register_bit(gpe_event_info, + gpe_register_info); + ACPI_CLEAR_BIT(enable_mask, register_bit); /* Write the updated enable mask */ @@ -150,21 +172,28 @@ acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info) acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info) { + struct acpi_gpe_register_info *gpe_register_info; acpi_status status; - u8 register_bit; + u32 register_bit; ACPI_FUNCTION_ENTRY(); - register_bit = (u8)(1 << - (gpe_event_info->gpe_number - - gpe_event_info->register_info->base_gpe_number)); + /* Get the info block for the entire GPE register */ + + gpe_register_info = gpe_event_info->register_info; + if (!gpe_register_info) { + return (AE_NOT_EXIST); + } + + register_bit = acpi_hw_gpe_register_bit(gpe_event_info, + gpe_register_info); /* * Write a one to the appropriate bit in the status register to * clear this GPE. */ status = acpi_hw_write(register_bit, - &gpe_event_info->register_info->status_address); + &gpe_register_info->status_address); return (status); } @@ -187,7 +216,7 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info, acpi_event_status * event_status) { u32 in_byte; - u8 register_bit; + u32 register_bit; struct acpi_gpe_register_info *gpe_register_info; acpi_status status; acpi_event_status local_event_status = 0; @@ -204,9 +233,8 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info, /* Get the register bitmask for this GPE */ - register_bit = (u8)(1 << - (gpe_event_info->gpe_number - - gpe_event_info->register_info->base_gpe_number)); + register_bit = acpi_hw_gpe_register_bit(gpe_event_info, + gpe_register_info); /* GPE currently enabled? (enabled for runtime?) */ -- cgit v1.1 From fd247447c1d94a79d5cfc647430784306b3a8323 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 8 Jun 2010 10:49:08 +0200 Subject: ACPI / ACPICA: Fix low-level GPE manipulation code ACPICA uses acpi_ev_enable_gpe() for enabling GPEs at the low level, which is incorrect, because this function only enables the GPE if the corresponding bit in its enable register's enable_for_run mask is set. This causes acpi_set_gpe() to work incorrectly if used for enabling GPEs that were not previously enabled with acpi_enable_gpe(). As a result, among other things, wakeup-only GPEs are never enabled by acpi_enable_wakeup_device(), so the devices that use them are unable to wake up the system. To fix this issue remove acpi_ev_enable_gpe() and its counterpart acpi_ev_disable_gpe() and replace acpi_hw_low_disable_gpe() with acpi_hw_low_set_gpe() that will be used instead to manipulate GPE enable bits at the low level. Make the users of acpi_ev_enable_gpe() and acpi_ev_disable_gpe() call acpi_hw_low_set_gpe() instead and make sure that GPE enable masks are only updated by acpi_enable_gpe() and acpi_disable_gpe() when GPE reference counters change from 0 to 1 and from 1 to 0, respectively. Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- drivers/acpi/acpica/acevents.h | 4 -- drivers/acpi/acpica/achware.h | 3 +- drivers/acpi/acpica/evgpe.c | 108 +---------------------------------------- drivers/acpi/acpica/evxfevnt.c | 59 +++++++++++++++++++--- drivers/acpi/acpica/hwgpe.c | 26 ++++++++-- 5 files changed, 78 insertions(+), 122 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h index 5e094a2..138bbb5 100644 --- a/drivers/acpi/acpica/acevents.h +++ b/drivers/acpi/acpica/acevents.h @@ -78,10 +78,6 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node *node, acpi_status acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info); -acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info); - -acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info); - struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device, u32 gpe_number); diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h index c46277d..3239158 100644 --- a/drivers/acpi/acpica/achware.h +++ b/drivers/acpi/acpica/achware.h @@ -93,7 +93,8 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width); u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info, struct acpi_gpe_register_info *gpe_register_info); -acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info); +acpi_status +acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action); acpi_status acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info *gpe_event_info); diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index 57eeb3b..66cd038 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -99,106 +99,6 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info) return_ACPI_STATUS(AE_OK); } -/******************************************************************************* - * - * FUNCTION: acpi_ev_enable_gpe - * - * PARAMETERS: gpe_event_info - GPE to enable - * - * RETURN: Status - * - * DESCRIPTION: Hardware-enable a GPE. Always enables the GPE, regardless - * of type or number of references. - * - * Note: The GPE lock should be already acquired when this function is called. - * - ******************************************************************************/ - -acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info) -{ - acpi_status status; - - - ACPI_FUNCTION_TRACE(ev_enable_gpe); - - - /* - * We will only allow a GPE to be enabled if it has either an - * associated method (_Lxx/_Exx) or a handler. Otherwise, the - * GPE will be immediately disabled by acpi_ev_gpe_dispatch the - * first time it fires. - */ - if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)) { - return_ACPI_STATUS(AE_NO_HANDLER); - } - - /* Ensure the HW enable masks are current */ - - status = acpi_ev_update_gpe_enable_masks(gpe_event_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Clear the GPE (of stale events) */ - - status = acpi_hw_clear_gpe(gpe_event_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Enable the requested GPE */ - - status = acpi_hw_write_gpe_enable_reg(gpe_event_info); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ev_disable_gpe - * - * PARAMETERS: gpe_event_info - GPE to disable - * - * RETURN: Status - * - * DESCRIPTION: Hardware-disable a GPE. Always disables the requested GPE, - * regardless of the type or number of references. - * - * Note: The GPE lock should be already acquired when this function is called. - * - ******************************************************************************/ - -acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(ev_disable_gpe); - - - /* - * Note: Always disable the GPE, even if we think that that it is already - * disabled. It is possible that the AML or some other code has enabled - * the GPE behind our back. - */ - - /* Ensure the HW enable masks are current */ - - status = acpi_ev_update_gpe_enable_masks(gpe_event_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Always H/W disable this GPE, even if we don't know the GPE type. - * Simply clear the enable bit for this particular GPE, but do not - * write out the current GPE enable mask since this may inadvertently - * enable GPEs too early. An example is a rogue GPE that has arrived - * during ACPICA initialization - possibly because AML or other code - * has enabled the GPE. - */ - status = acpi_hw_low_disable_gpe(gpe_event_info); - return_ACPI_STATUS(status); -} - /******************************************************************************* * @@ -450,10 +350,6 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) return_VOID; } - /* Update the GPE register masks for return to enabled state */ - - (void)acpi_ev_update_gpe_enable_masks(gpe_event_info); - /* * Take a snapshot of the GPE info for this level - we copy the info to * prevent a race condition with remove_handler/remove_block. @@ -606,7 +502,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number) * Disable the GPE, so it doesn't keep firing before the method has a * chance to run (it runs asynchronously with interrupts enabled). */ - status = acpi_ev_disable_gpe(gpe_event_info); + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "Unable to disable GPE[0x%2X]", @@ -643,7 +539,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number) * Disable the GPE. The GPE will remain disabled a handler * is installed or ACPICA is restarted. */ - status = acpi_ev_disable_gpe(gpe_event_info); + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "Unable to disable GPE[0x%2X]", diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c index 7c7bbb4..e3d9f5c 100644 --- a/drivers/acpi/acpica/evxfevnt.c +++ b/drivers/acpi/acpica/evxfevnt.c @@ -201,6 +201,44 @@ ACPI_EXPORT_SYMBOL(acpi_enable_event) /******************************************************************************* * + * FUNCTION: acpi_clear_and_enable_gpe + * + * PARAMETERS: gpe_event_info - GPE to enable + * + * RETURN: Status + * + * DESCRIPTION: Clear the given GPE from stale events and enable it. + * + ******************************************************************************/ +static acpi_status +acpi_clear_and_enable_gpe(struct acpi_gpe_event_info *gpe_event_info) +{ + acpi_status status; + + /* + * We will only allow a GPE to be enabled if it has either an + * associated method (_Lxx/_Exx) or a handler. Otherwise, the + * GPE will be immediately disabled by acpi_ev_gpe_dispatch the + * first time it fires. + */ + if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)) { + return_ACPI_STATUS(AE_NO_HANDLER); + } + + /* Clear the GPE (of stale events) */ + status = acpi_hw_clear_gpe(gpe_event_info); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Enable the requested GPE */ + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_ENABLE); + + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * * FUNCTION: acpi_set_gpe * * PARAMETERS: gpe_device - Parent GPE Device. NULL for GPE0/GPE1 @@ -240,11 +278,11 @@ acpi_status acpi_set_gpe(acpi_handle gpe_device, u32 gpe_number, u8 action) switch (action) { case ACPI_GPE_ENABLE: - status = acpi_ev_enable_gpe(gpe_event_info); + status = acpi_clear_and_enable_gpe(gpe_event_info); break; case ACPI_GPE_DISABLE: - status = acpi_ev_disable_gpe(gpe_event_info); + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE); break; default: @@ -307,7 +345,11 @@ acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type) gpe_event_info->runtime_count++; if (gpe_event_info->runtime_count == 1) { - status = acpi_ev_enable_gpe(gpe_event_info); + status = acpi_ev_update_gpe_enable_masks(gpe_event_info); + if (ACPI_SUCCESS(status)) { + status = acpi_clear_and_enable_gpe(gpe_event_info); + } + if (ACPI_FAILURE(status)) { gpe_event_info->runtime_count--; goto unlock_and_exit; @@ -334,7 +376,7 @@ acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type) */ gpe_event_info->wakeup_count++; if (gpe_event_info->wakeup_count == 1) { - (void)acpi_ev_update_gpe_enable_masks(gpe_event_info); + status = acpi_ev_update_gpe_enable_masks(gpe_event_info); } } @@ -394,7 +436,12 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type gpe_event_info->runtime_count--; if (!gpe_event_info->runtime_count) { - status = acpi_ev_disable_gpe(gpe_event_info); + status = acpi_ev_update_gpe_enable_masks(gpe_event_info); + if (ACPI_SUCCESS(status)) { + status = acpi_hw_low_set_gpe(gpe_event_info, + ACPI_GPE_DISABLE); + } + if (ACPI_FAILURE(status)) { gpe_event_info->runtime_count++; goto unlock_and_exit; @@ -415,7 +462,7 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type gpe_event_info->wakeup_count--; if (!gpe_event_info->wakeup_count) { - (void)acpi_ev_update_gpe_enable_masks(gpe_event_info); + status = acpi_ev_update_gpe_enable_masks(gpe_event_info); } } diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c index d989b8e..40388e2 100644 --- a/drivers/acpi/acpica/hwgpe.c +++ b/drivers/acpi/acpica/hwgpe.c @@ -78,23 +78,27 @@ u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info, /****************************************************************************** * - * FUNCTION: acpi_hw_low_disable_gpe + * FUNCTION: acpi_hw_low_set_gpe * * PARAMETERS: gpe_event_info - Info block for the GPE to be disabled + * action - Enable or disable * * RETURN: Status * - * DESCRIPTION: Disable a single GPE in the enable register. + * DESCRIPTION: Enable or disable a single GPE in its enable register. * ******************************************************************************/ -acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) +acpi_status +acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action) { struct acpi_gpe_register_info *gpe_register_info; acpi_status status; u32 enable_mask; u32 register_bit; + ACPI_FUNCTION_ENTRY(); + /* Get the info block for the entire GPE register */ gpe_register_info = gpe_event_info->register_info; @@ -109,11 +113,23 @@ acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) return (status); } - /* Clear just the bit that corresponds to this GPE */ + /* Set ot clear just the bit that corresponds to this GPE */ register_bit = acpi_hw_gpe_register_bit(gpe_event_info, gpe_register_info); - ACPI_CLEAR_BIT(enable_mask, register_bit); + switch (action) { + case ACPI_GPE_ENABLE: + ACPI_SET_BIT(enable_mask, register_bit); + break; + + case ACPI_GPE_DISABLE: + ACPI_CLEAR_BIT(enable_mask, register_bit); + break; + + default: + ACPI_ERROR((AE_INFO, "Invalid action\n")); + return (AE_BAD_PARAMETER); + } /* Write the updated enable mask */ -- cgit v1.1 From c9a8bbb7704cbf515c0fc68970abbe4e91d68521 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 8 Jun 2010 10:49:45 +0200 Subject: ACPI / ACPICA: Avoid writing full enable masks to GPE registers ACPICA uses acpi_hw_write_gpe_enable_reg() to re-enable a GPE after an event signaled by it has been handled. However, this function writes the entire GPE enable mask to the GPE's enable register which may not be correct. Namely, if one of the other GPEs in the same register was previously enabled by acpi_enable_gpe() and subsequently disabled using acpi_set_gpe(), acpi_hw_write_gpe_enable_reg() will re-enable it along with the target GPE. To fix this issue rework acpi_hw_write_gpe_enable_reg() so that it calls acpi_hw_low_set_gpe() with a special action value, ACPI_GPE_COND_ENABLE, that will make it only enable the GPE if the corresponding bit in its register's enable_for_run mask is set. Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- drivers/acpi/acpica/hwgpe.c | 18 +++++------------- 1 file changed, 5 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c index 40388e2..3450309 100644 --- a/drivers/acpi/acpica/hwgpe.c +++ b/drivers/acpi/acpica/hwgpe.c @@ -118,6 +118,10 @@ acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action) register_bit = acpi_hw_gpe_register_bit(gpe_event_info, gpe_register_info); switch (action) { + case ACPI_GPE_COND_ENABLE: + if (!(register_bit & gpe_register_info->enable_for_run)) + return (AE_BAD_PARAMETER); + case ACPI_GPE_ENABLE: ACPI_SET_BIT(enable_mask, register_bit); break; @@ -154,23 +158,11 @@ acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action) acpi_status acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info) { - struct acpi_gpe_register_info *gpe_register_info; acpi_status status; ACPI_FUNCTION_ENTRY(); - /* Get the info block for the entire GPE register */ - - gpe_register_info = gpe_event_info->register_info; - if (!gpe_register_info) { - return (AE_NOT_EXIST); - } - - /* Write the entire GPE (runtime) enable register */ - - status = acpi_hw_write(gpe_register_info->enable_for_run, - &gpe_register_info->enable_address); - + status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_COND_ENABLE); return (status); } -- cgit v1.1 From ce43ace02320a3fb9614ddb27edc3a8700d68b26 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 8 Jun 2010 10:50:20 +0200 Subject: ACPI / ACPICA: Fix GPE initialization While developing the GPE reference counting code we overlooked the fact that acpi_ev_update_gpes() could have enabled GPEs before acpi_ev_initialize_gpe_block() was called. As a result, some GPEs are enabled twice during the initialization. To fix this issue avoid calling acpi_enable_gpe() from acpi_ev_initialize_gpe_block() for the GPEs that have nonzero runtime reference counters. Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- drivers/acpi/acpica/evgpeblk.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index 85ded1f..79048de 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -1024,6 +1024,19 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j; gpe_event_info = &gpe_block->event_info[gpe_index]; + gpe_number = gpe_index + gpe_block->block_base_number; + + /* + * If the GPE has already been enabled for runtime + * signaling, make sure it remains enabled, but do not + * increment its reference counter. + */ + if (gpe_event_info->runtime_count) { + acpi_set_gpe(gpe_device, gpe_number, + ACPI_GPE_ENABLE); + gpe_enabled_count++; + continue; + } if (gpe_event_info->flags & ACPI_GPE_CAN_WAKE) { wake_gpe_count++; @@ -1040,7 +1053,6 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, /* Enable this GPE */ - gpe_number = gpe_index + gpe_block->block_base_number; status = acpi_enable_gpe(gpe_device, gpe_number, ACPI_GPE_TYPE_RUNTIME); if (ACPI_FAILURE(status)) { -- cgit v1.1 From 9d3c752de65dbfa6e522f1d666deb0ac152ef367 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 8 Jun 2010 10:50:53 +0200 Subject: ACPI / ACPICA: Fix sysfs GPE interface The sysfs interface allowing user space to disable/enable GPEs doesn't work correctly, because a GPE disabled this way will be re-enabled shortly by acpi_ev_asynch_enable_gpe() if it was previosuly enabled by acpi_enable_gpe() (in which case the corresponding bit in its enable register's enable_for_run mask is set). To address this issue make the sysfs GPE interface use acpi_enable_gpe() and acpi_disable_gpe() instead of acpi_set_gpe() so that GPE reference counters are modified by it along with the values of GPE enable registers. Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- drivers/acpi/system.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c index e35525b..904e8fc 100644 --- a/drivers/acpi/system.c +++ b/drivers/acpi/system.c @@ -388,10 +388,12 @@ static ssize_t counter_set(struct kobject *kobj, if (index < num_gpes) { if (!strcmp(buf, "disable\n") && (status & ACPI_EVENT_FLAG_ENABLED)) - result = acpi_set_gpe(handle, index, ACPI_GPE_DISABLE); + result = acpi_disable_gpe(handle, index, + ACPI_GPE_TYPE_RUNTIME); else if (!strcmp(buf, "enable\n") && !(status & ACPI_EVENT_FLAG_ENABLED)) - result = acpi_set_gpe(handle, index, ACPI_GPE_ENABLE); + result = acpi_enable_gpe(handle, index, + ACPI_GPE_TYPE_RUNTIME); else if (!strcmp(buf, "clear\n") && (status & ACPI_EVENT_FLAG_SET)) result = acpi_clear_gpe(handle, index); -- cgit v1.1 From 9cbfa18e8a7b34a32eddbd914a07f085962f50a8 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Wed, 26 May 2010 11:22:41 +0800 Subject: ACPICA: Limit maximum time for Sleep() operator To prevent accidental deep sleeps, limit the maximum time that Sleep() will sleep. Configurable, default maximum is two seconds. ACPICA bugzilla 854. http://www.acpica.org/bugzilla/show_bug.cgi?id=854 Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/acconfig.h | 4 ++++ drivers/acpi/acpica/exsystem.c | 8 ++++++++ 2 files changed, 12 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/acpica/acconfig.h b/drivers/acpi/acpica/acconfig.h index 33181ad..b17d8de 100644 --- a/drivers/acpi/acpica/acconfig.h +++ b/drivers/acpi/acpica/acconfig.h @@ -119,6 +119,10 @@ #define ACPI_MAX_LOOP_ITERATIONS 0xFFFF +/* Maximum sleep allowed via Sleep() operator */ + +#define ACPI_MAX_SLEEP 20000 /* Two seconds */ + /****************************************************************************** * * ACPI Specification constants (Do not change unless the specification changes) diff --git a/drivers/acpi/acpica/exsystem.c b/drivers/acpi/acpica/exsystem.c index 6d32e09..675aaa9 100644 --- a/drivers/acpi/acpica/exsystem.c +++ b/drivers/acpi/acpica/exsystem.c @@ -201,6 +201,14 @@ acpi_status acpi_ex_system_do_sleep(u64 how_long) acpi_ex_relinquish_interpreter(); + /* + * For compatibility with other ACPI implementations and to prevent + * accidental deep sleeps, limit the sleep time to something reasonable. + */ + if (how_long > ACPI_MAX_SLEEP) { + how_long = ACPI_MAX_SLEEP; + } + acpi_os_sleep(how_long); /* And now we must get the interpreter again */ -- cgit v1.1 From b681f7d9ab4d697a214fa4428795790c3a937a89 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Wed, 26 May 2010 11:50:48 +0800 Subject: ACPICA: Truncate I/O addresses to 16 bits for Windows compatibility This feature is optional and is enabled if the BIOS requests any Windows OSI strings. It can also be enabled by the host OS. Signed-off-by: Matthew Garrett Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- drivers/acpi/acpica/acglobal.h | 8 ++++++++ drivers/acpi/acpica/hwvalid.c | 12 ++++++++++++ drivers/acpi/acpica/nsinit.c | 9 +++++++++ 3 files changed, 29 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 9070f1f..899d68a 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -125,6 +125,14 @@ u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE); */ u8 ACPI_INIT_GLOBAL(acpi_gbl_copy_dsdt_locally, FALSE); +/* + * Optionally truncate I/O addresses to 16 bits. Provides compatibility + * with other ACPI implementations. NOTE: During ACPICA initialization, + * this value is set to TRUE if any Windows OSI strings have been + * requested by the BIOS. + */ +u8 ACPI_INIT_GLOBAL(acpi_gbl_truncate_io_addresses, FALSE); + /* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */ struct acpi_table_fadt acpi_gbl_FADT; diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c index c10d587..e1d9c77 100644 --- a/drivers/acpi/acpica/hwvalid.c +++ b/drivers/acpi/acpica/hwvalid.c @@ -222,6 +222,12 @@ acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width) u32 one_byte; u32 i; + /* Truncate address to 16 bits if requested */ + + if (acpi_gbl_truncate_io_addresses) { + address &= ACPI_UINT16_MAX; + } + /* Validate the entire request and perform the I/O */ status = acpi_hw_validate_io_request(address, width); @@ -279,6 +285,12 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width) acpi_status status; u32 i; + /* Truncate address to 16 bits if requested */ + + if (acpi_gbl_truncate_io_addresses) { + address &= ACPI_UINT16_MAX; + } + /* Validate the entire request and perform the I/O */ status = acpi_hw_validate_io_request(address, width); diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c index 9bd6f05..4e5272c 100644 --- a/drivers/acpi/acpica/nsinit.c +++ b/drivers/acpi/acpica/nsinit.c @@ -193,6 +193,15 @@ acpi_status acpi_ns_initialize_devices(void) acpi_ns_init_one_device, NULL, &info, NULL); + /* + * Any _OSI requests should be completed by now. If the BIOS has + * requested any Windows OSI strings, we will always truncate + * I/O addresses to 16 bits -- for Windows compatibility. + */ + if (acpi_gbl_osi_data >= ACPI_OSI_WIN_2000) { + acpi_gbl_truncate_io_addresses = TRUE; + } + ACPI_FREE(info.evaluate_info); if (ACPI_FAILURE(status)) { goto error_exit; -- cgit v1.1 From d49aba84fe775671133295658f43f4d142a517f9 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 8 Jun 2010 07:00:20 +0000 Subject: enic: fix pci_alloc_consistent argument Fix build warning on i386 (32-bit) with 32-bit dma_addr_t: drivers/net/enic/vnic_dev.c: In function 'vnic_dev_init_prov': drivers/net/enic/vnic_dev.c:716: warning: passing argument 3 of 'pci_alloc_consistent' from incompatible pointer type include/asm-generic/pci-dma-compat.h:16: note: expected 'dma_addr_t *' but argument is of type 'u64 *' Now builds without warnings on i386 and on x86_64. Signed-off-by: Randy Dunlap Cc: Scott Feldman Cc: Vasanthy Kolluri Cc: Roopa Prabhu Acked-by: Scott Feldman --- drivers/net/enic/vnic_dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/enic/vnic_dev.c b/drivers/net/enic/vnic_dev.c index 2b3e16d..e0d3328 100644 --- a/drivers/net/enic/vnic_dev.c +++ b/drivers/net/enic/vnic_dev.c @@ -709,7 +709,7 @@ int vnic_dev_init_prov(struct vnic_dev *vdev, u8 *buf, u32 len) { u64 a0, a1 = len; int wait = 1000; - u64 prov_pa; + dma_addr_t prov_pa; void *prov_buf; int ret; -- cgit v1.1 From 8acf7d00dfb62d7e5f2533c3f1132f60cb267369 Mon Sep 17 00:00:00 2001 From: Baruch Siach Date: Wed, 9 Jun 2010 14:07:02 +0300 Subject: watchdog: [PATCH 3/3] imx2_wdt: fix section mismatch MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Baruch Siach Acked-by: Uwe Kleine-König Reviewed-by: Wolfram Sang Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/imx2_wdt.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c index ea25885..2ee7dac 100644 --- a/drivers/watchdog/imx2_wdt.c +++ b/drivers/watchdog/imx2_wdt.c @@ -330,7 +330,6 @@ static void imx2_wdt_shutdown(struct platform_device *pdev) } static struct platform_driver imx2_wdt_driver = { - .probe = imx2_wdt_probe, .remove = __exit_p(imx2_wdt_remove), .shutdown = imx2_wdt_shutdown, .driver = { -- cgit v1.1 From d08935c274b7e552e47633cf0cbd74b6e953d228 Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Fri, 11 Jun 2010 13:20:29 +0000 Subject: ixgbe: fix for race with 8259(8|9) during shutdown There is a small window where the watchdog could be running as the interface is brought down on a NIC with two ports wired back to back. If ixgbe_update_status is then called can lead to a panic. This patch allows the update to bail if we are in that condition. This issue was orignally reported and fix proposed by Akihiko Saitou. CC: Akihiko Saitou Signed-off-by: Don Skidmore Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_main.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index b2af2f6..ce30c62 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -5282,6 +5282,10 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter) u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot; u64 non_eop_descs = 0, restart_queue = 0; + if (test_bit(__IXGBE_DOWN, &adapter->state) || + test_bit(__IXGBE_RESETTING, &adapter->state)) + return; + if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { u64 rsc_count = 0; u64 rsc_flush = 0; -- cgit v1.1 From 7837e58ce39bd727e0a163e7d34e479df36f6d29 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Fri, 11 Jun 2010 12:51:49 +0000 Subject: e1000: Fix message logging defect commit 675ad47375c76a7c3be4ace9554d92cd55518ced removed the capability to use ethtool.set_msglevel to control the types of messages emitted by the driver. That commit should probably be reverted. If not, then this patch fixes a message logging defect introduced by converting a printk without KERN_ to e_info. This also reduces text by about 200 bytes. Signed-off-by: Joe Perches Tested-by: Emil Tantilov Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/e1000/e1000_main.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index ebdea08..68a8089 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -1047,15 +1047,14 @@ static int __devinit e1000_probe(struct pci_dev *pdev, goto err_register; /* print bus type/speed/width info */ - e_info("(PCI%s:%s:%s) ", - ((hw->bus_type == e1000_bus_type_pcix) ? "-X" : ""), - ((hw->bus_speed == e1000_bus_speed_133) ? "133MHz" : - (hw->bus_speed == e1000_bus_speed_120) ? "120MHz" : - (hw->bus_speed == e1000_bus_speed_100) ? "100MHz" : - (hw->bus_speed == e1000_bus_speed_66) ? "66MHz" : "33MHz"), - ((hw->bus_width == e1000_bus_width_64) ? "64-bit" : "32-bit")); - - e_info("%pM\n", netdev->dev_addr); + e_info("(PCI%s:%dMHz:%d-bit) %pM\n", + ((hw->bus_type == e1000_bus_type_pcix) ? "-X" : ""), + ((hw->bus_speed == e1000_bus_speed_133) ? 133 : + (hw->bus_speed == e1000_bus_speed_120) ? 120 : + (hw->bus_speed == e1000_bus_speed_100) ? 100 : + (hw->bus_speed == e1000_bus_speed_66) ? 66 : 33), + ((hw->bus_width == e1000_bus_width_64) ? 64 : 32), + netdev->dev_addr); /* carrier off reporting is important to ethtool even BEFORE open */ netif_carrier_off(netdev); -- cgit v1.1 From 28c8e4790ca5ef75f54895ca46437f9fbb433ddf Mon Sep 17 00:00:00 2001 From: Andy Gospodarek Date: Fri, 11 Jun 2010 12:47:03 +0000 Subject: ixgbe: fix automatic LRO/RSC settings for low latency This patch added to 2.6.34: commit f8d1dcaf88bddc7f282722ec1fdddbcb06a72f18 Author: Jesse Brandeburg Date: Tue Apr 27 01:37:20 2010 +0000 ixgbe: enable extremely low latency introduced a feature where LRO (called RSC on the hardware) was disabled automatically when setting rx-usecs to 0 via ethtool. Some might not like the fact that LRO was disabled automatically, but I'm fine with that. What I don't like is that LRO/RSC is automatically enabled when rx-usecs is set >0 via ethtool. This would certainly be a problem if the device was used for forwarding and it was determined that the low latency wasn't needed after the device was already forwarding. I played around with saving the state of LRO in the driver, but it just didn't seem worthwhile and would require a small change to dev_disable_lro() that I did not like. This patch simply leaves LRO disabled when setting rx-usecs >0 and requires that the user enable it again. An extra informational message will also now appear in the log so users can understand why LRO isn't being enabled as they expect. Inconsistency of LRO setting first noticed by Stanislaw Gruszka. Signed-off-by: Andy Gospodarek CC: Stanislaw Gruszka CC: stable@kernel.org Tested-by: Stephen Ko Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_ethtool.c | 37 ++++++++----------------------------- 1 file changed, 8 insertions(+), 29 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c index c50a754..3a93a81 100644 --- a/drivers/net/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ixgbe/ixgbe_ethtool.c @@ -2077,25 +2077,6 @@ static int ixgbe_get_coalesce(struct net_device *netdev, return 0; } -/* - * this function must be called before setting the new value of - * rx_itr_setting - */ -static bool ixgbe_reenable_rsc(struct ixgbe_adapter *adapter, - struct ethtool_coalesce *ec) -{ - /* check the old value and enable RSC if necessary */ - if ((adapter->rx_itr_setting == 0) && - (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE)) { - adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED; - adapter->netdev->features |= NETIF_F_LRO; - DPRINTK(PROBE, INFO, "rx-usecs set to %d, re-enabling RSC\n", - ec->rx_coalesce_usecs); - return true; - } - return false; -} - static int ixgbe_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec) { @@ -2124,9 +2105,6 @@ static int ixgbe_set_coalesce(struct net_device *netdev, (1000000/ec->rx_coalesce_usecs < IXGBE_MIN_INT_RATE)) return -EINVAL; - /* check the old value and enable RSC if necessary */ - need_reset = ixgbe_reenable_rsc(adapter, ec); - /* store the value in ints/second */ adapter->rx_eitr_param = 1000000/ec->rx_coalesce_usecs; @@ -2135,9 +2113,6 @@ static int ixgbe_set_coalesce(struct net_device *netdev, /* clear the lower bit as its used for dynamic state */ adapter->rx_itr_setting &= ~1; } else if (ec->rx_coalesce_usecs == 1) { - /* check the old value and enable RSC if necessary */ - need_reset = ixgbe_reenable_rsc(adapter, ec); - /* 1 means dynamic mode */ adapter->rx_eitr_param = 20000; adapter->rx_itr_setting = 1; @@ -2157,10 +2132,11 @@ static int ixgbe_set_coalesce(struct net_device *netdev, */ if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) { adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED; - netdev->features &= ~NETIF_F_LRO; - DPRINTK(PROBE, INFO, - "rx-usecs set to 0, disabling RSC\n"); - + if (netdev->features & NETIF_F_LRO) { + netdev->features &= ~NETIF_F_LRO; + DPRINTK(PROBE, INFO, "rx-usecs set to 0, " + "disabling LRO/RSC\n"); + } need_reset = true; } } @@ -2255,6 +2231,9 @@ static int ixgbe_set_flags(struct net_device *netdev, u32 data) } } else if (!adapter->rx_itr_setting) { netdev->features &= ~ETH_FLAG_LRO; + if (data & ETH_FLAG_LRO) + DPRINTK(PROBE, INFO, "rx-usecs set to 0, " + "LRO/RSC cannot be enabled.\n"); } } -- cgit v1.1 From dc66c74de6f4238020db3e2041d4aca5c5b3e9bc Mon Sep 17 00:00:00 2001 From: Philipp Reisner Date: Wed, 2 Jun 2010 14:31:29 +0200 Subject: drbd: Fixed a race between disk-attach and unexpected state changes This was a very hard to trigger race condition. If we got a state packet from the peer, after drbd_nl_disk() has already changed the disk state to D_NEGOTIATING but after_state_ch() was not yet run by the worker, then receive_state() might called drbd_sync_handshake(), which in turn crashed when accessing p_uuid. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_main.c | 2 -- drivers/block/drbd/drbd_nl.c | 6 ++++++ 2 files changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 6b077f9..7258c95 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -1236,8 +1236,6 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os, /* Last part of the attaching process ... */ if (ns.conn >= C_CONNECTED && os.disk == D_ATTACHING && ns.disk == D_NEGOTIATING) { - kfree(mdev->p_uuid); /* We expect to receive up-to-date UUIDs soon. */ - mdev->p_uuid = NULL; /* ...to not use the old ones in the mean time */ drbd_send_sizes(mdev, 0, 0); /* to start sync... */ drbd_send_uuids(mdev); drbd_send_state(mdev); diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 632e324..2151f18 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -1114,6 +1114,12 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp mdev->new_state_tmp.i = ns.i; ns.i = os.i; ns.disk = D_NEGOTIATING; + + /* We expect to receive up-to-date UUIDs soon. + To avoid a race in receive_state, free p_uuid while + holding req_lock. I.e. atomic with the state change */ + kfree(mdev->p_uuid); + mdev->p_uuid = NULL; } rv = _drbd_set_state(mdev, ns, CS_VERBOSE, NULL); -- cgit v1.1 From d4a3895f5d024b47ef8e9d98c59a9b86dcdcef59 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Mon, 14 Jun 2010 12:55:09 +0200 Subject: cpqarray: fix wrong __init type on pci probe function It needs to be __devinit, not __init. Signed-off-by: Jens Axboe --- drivers/block/cpqarray.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c index 91d1163..95ae5b9 100644 --- a/drivers/block/cpqarray.c +++ b/drivers/block/cpqarray.c @@ -503,7 +503,7 @@ Enomem4: return -1; } -static int __init cpqarray_init_one( struct pci_dev *pdev, +static int __devinit cpqarray_init_one( struct pci_dev *pdev, const struct pci_device_id *ent) { int i; -- cgit v1.1 From 552618d124b68d41c2effaaaa3ca5b8ce9598502 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Mon, 14 Jun 2010 15:21:33 +0200 Subject: cpqarray: fix two more wrong section type cpqarray_register_ctlr() and cpqarray_eisa_detect() also need to be marked as __devinit. Signed-off-by: Jens Axboe --- drivers/block/cpqarray.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c index 95ae5b9..abb4ec6 100644 --- a/drivers/block/cpqarray.c +++ b/drivers/block/cpqarray.c @@ -386,7 +386,7 @@ static void __devexit cpqarray_remove_one_eisa (int i) } /* pdev is NULL for eisa */ -static int __init cpqarray_register_ctlr( int i, struct pci_dev *pdev) +static int __devinit cpqarray_register_ctlr( int i, struct pci_dev *pdev) { struct request_queue *q; int j; @@ -740,7 +740,7 @@ __setup("smart2=", cpqarray_setup); /* * Find an EISA controller's signature. Set up an hba if we find it. */ -static int __init cpqarray_eisa_detect(void) +static int __devinit cpqarray_eisa_detect(void) { int i=0, j; __u32 board_id; -- cgit v1.1 From da5ae1cfff4cc5b9392eab59b227ad907626d7aa Mon Sep 17 00:00:00 2001 From: Reinette Chatre Date: Fri, 28 May 2010 09:28:39 -0700 Subject: iwlwifi: serialize station management actions We are seeing some race conditions between incoming station management requests (station add/remove) and the internal unassoc RXON command that modifies station table. Modify these flows to require the mutex to be held and thus serializing them. This fixes http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2207 Signed-off-by: Reinette Chatre --- drivers/net/wireless/iwlwifi/iwl-agn.c | 8 ++++++-- drivers/net/wireless/iwlwifi/iwl-sta.c | 4 ++++ drivers/net/wireless/iwlwifi/iwl3945-base.c | 9 +++++++-- 3 files changed, 17 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 7726e67..24aff65 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -3391,10 +3391,12 @@ static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, int ret; u8 sta_id; - sta_priv->common.sta_id = IWL_INVALID_STATION; - IWL_DEBUG_INFO(priv, "received request to add station %pM\n", sta->addr); + mutex_lock(&priv->mutex); + IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", + sta->addr); + sta_priv->common.sta_id = IWL_INVALID_STATION; atomic_set(&sta_priv->pending_frames, 0); if (vif->type == NL80211_IFTYPE_AP) @@ -3406,6 +3408,7 @@ static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, IWL_ERR(priv, "Unable to add station %pM (%d)\n", sta->addr, ret); /* Should we return success if return code is EEXIST ? */ + mutex_unlock(&priv->mutex); return ret; } @@ -3415,6 +3418,7 @@ static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n", sta->addr); iwl_rs_rate_init(priv, sta, sta_id); + mutex_unlock(&priv->mutex); return 0; } diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c index 83a2636..c27c13f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sta.c +++ b/drivers/net/wireless/iwlwifi/iwl-sta.c @@ -1373,10 +1373,14 @@ int iwl_mac_sta_remove(struct ieee80211_hw *hw, IWL_DEBUG_INFO(priv, "received request to remove station %pM\n", sta->addr); + mutex_lock(&priv->mutex); + IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n", + sta->addr); ret = iwl_remove_station(priv, sta_common->sta_id, sta->addr); if (ret) IWL_ERR(priv, "Error removing station %pM\n", sta->addr); + mutex_unlock(&priv->mutex); return ret; } EXPORT_SYMBOL(iwl_mac_sta_remove); diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index 6c353ca..a27872d 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -3437,10 +3437,13 @@ static int iwl3945_mac_sta_add(struct ieee80211_hw *hw, bool is_ap = vif->type == NL80211_IFTYPE_STATION; u8 sta_id; - sta_priv->common.sta_id = IWL_INVALID_STATION; - IWL_DEBUG_INFO(priv, "received request to add station %pM\n", sta->addr); + mutex_lock(&priv->mutex); + IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", + sta->addr); + sta_priv->common.sta_id = IWL_INVALID_STATION; + ret = iwl_add_station_common(priv, sta->addr, is_ap, &sta->ht_cap, &sta_id); @@ -3448,6 +3451,7 @@ static int iwl3945_mac_sta_add(struct ieee80211_hw *hw, IWL_ERR(priv, "Unable to add station %pM (%d)\n", sta->addr, ret); /* Should we return success if return code is EEXIST ? */ + mutex_unlock(&priv->mutex); return ret; } @@ -3457,6 +3461,7 @@ static int iwl3945_mac_sta_add(struct ieee80211_hw *hw, IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n", sta->addr); iwl3945_rs_rate_init(priv, sta, sta_id); + mutex_unlock(&priv->mutex); return 0; } -- cgit v1.1 From b561e8274f75831ee87e4ea378cbb1f9f050a51a Mon Sep 17 00:00:00 2001 From: Shanyu Zhao Date: Tue, 1 Jun 2010 17:13:58 -0700 Subject: iwlagn: verify flow id in compressed BA packet The flow id (scd_flow) in a compressed BA packet should match the txq_id of the queue from which the aggregated packets were sent. However, in some hardware like the 1000 series, sometimes the flow id is 0 for the txq_id (10 to 19). This can cause the annoying message: [ 2213.306191] iwlagn 0000:01:00.0: Received BA when not expected [ 2213.310178] iwlagn 0000:01:00.0: Read index for DMA queue txq id (0), index 5, is out of range [0-256] 7 7. And even worse, if agg->wait_for_ba is true when the bad BA is arriving, this can cause system hang due to NULL pointer dereference because the code is operating in a wrong tx queue! Signed-off-by: Shanyu Zhao Signed-off-by: Pradeep Kulkarni Signed-off-by: Reinette Chatre --- drivers/net/wireless/iwlwifi/iwl-agn-tx.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c index a732f10..7d614c4 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c @@ -1299,6 +1299,11 @@ void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv, sta_id = ba_resp->sta_id; tid = ba_resp->tid; agg = &priv->stations[sta_id].tid[tid].agg; + if (unlikely(agg->txq_id != scd_flow)) { + IWL_ERR(priv, "BA scd_flow %d does not match txq_id %d\n", + scd_flow, agg->txq_id); + return; + } /* Find index just before block-ack window */ index = iwl_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd); -- cgit v1.1 From 13deb23a52c13053fc509f119eb80b903c65a879 Mon Sep 17 00:00:00 2001 From: Prarit Bhargava Date: Thu, 10 Jun 2010 08:08:42 -0400 Subject: libertas_tf: Fix warning in lbtf_rx for stats struct Fixes linux-2.6 warning: drivers/net/wireless/libertas_tf/main.c: In function 'lbtf_rx': drivers/net/wireless/libertas_tf/main.c:578: warning: 'stats.antenna' is used uninitialized in this function drivers/net/wireless/libertas_tf/main.c:578: warning: 'stats.mactime' is used uninitialized in this function stats struct needs to be set to 0 before use. Signed-off-by: Prarit Bhargava Signed-off-by: John W. Linville --- drivers/net/wireless/libertas_tf/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/wireless/libertas_tf/main.c b/drivers/net/wireless/libertas_tf/main.c index 6a04c21..817fffc 100644 --- a/drivers/net/wireless/libertas_tf/main.c +++ b/drivers/net/wireless/libertas_tf/main.c @@ -549,7 +549,7 @@ int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb) prxpd = (struct rxpd *) skb->data; - stats.flag = 0; + memset(&stats, 0, sizeof(stats)); if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK))) stats.flag |= RX_FLAG_FAILED_FCS_CRC; stats.freq = priv->cur_freq; -- cgit v1.1 From 50900f1698f68127e54c67fdfe829e4a97b1be2b Mon Sep 17 00:00:00 2001 From: Joerg Albert Date: Sun, 13 Jun 2010 14:22:23 +0200 Subject: p54pci: add Symbol AP-300 minipci adapters pciid Cc: stable@kernel.org Signed-off-by: Christian Lamparter Signed-off-by: John W. Linville --- drivers/net/wireless/p54/p54pci.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wireless/p54/p54pci.c b/drivers/net/wireless/p54/p54pci.c index 07c4528..a5ea89c 100644 --- a/drivers/net/wireless/p54/p54pci.c +++ b/drivers/net/wireless/p54/p54pci.c @@ -41,6 +41,8 @@ static DEFINE_PCI_DEVICE_TABLE(p54p_table) = { { PCI_DEVICE(0x1260, 0x3877) }, /* Intersil PRISM Javelin/Xbow Wireless LAN adapter */ { PCI_DEVICE(0x1260, 0x3886) }, + /* Intersil PRISM Xbow Wireless LAN adapter (Symbol AP-300) */ + { PCI_DEVICE(0x1260, 0xffff) }, { }, }; -- cgit v1.1 From 02a077c52ef7631275a79862ffd9f3dbe9d38bc2 Mon Sep 17 00:00:00 2001 From: Rajiv Andrade Date: Mon, 14 Jun 2010 13:58:22 -0300 Subject: TPM: ReadPubEK output struct fix This patch adds a missing element of the ReadPubEK command output, that prevents future overflow of this buffer when copying the TPM output result into it. Prevents a kernel panic in case the user tries to read the pubek from sysfs. Signed-off-by: Rajiv Andrade Signed-off-by: James Morris --- drivers/char/tpm/tpm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index 8e00b4d..792868d 100644 --- a/drivers/char/tpm/tpm.h +++ b/drivers/char/tpm/tpm.h @@ -224,6 +224,7 @@ struct tpm_readpubek_params_out { u8 algorithm[4]; u8 encscheme[2]; u8 sigscheme[2]; + __be32 paramsize; u8 parameters[12]; /*assuming RSA*/ __be32 keysize; u8 modulus[256]; -- cgit v1.1 From 1ab064de4f3037aacb76d297c65d23e1b646fd2e Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 9 Jun 2010 14:03:48 +1000 Subject: drm/radeon: fix dual-head on rv250 Plugged in FireMV with the rv250 on it, and the second crtc/dac didn't work, we were reading/writing different registers than we were modifying in the code. Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_legacy_encoders.c | 22 +++++++++------------- 1 file changed, 9 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c index 5b07b88..bad77f4 100644 --- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c @@ -928,16 +928,14 @@ static void radeon_legacy_tv_dac_mode_set(struct drm_encoder *encoder, if (ASIC_IS_R300(rdev)) { gpiopad_a = RREG32(RADEON_GPIOPAD_A) | 1; disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL); - } - - if (rdev->family == CHIP_R200 || ASIC_IS_R300(rdev)) - disp_tv_out_cntl = RREG32(RADEON_DISP_TV_OUT_CNTL); - else + } else if (rdev->family != CHIP_R200) disp_hw_debug = RREG32(RADEON_DISP_HW_DEBUG); - - if (rdev->family == CHIP_R200) + else if (rdev->family == CHIP_R200) fp2_gen_cntl = RREG32(RADEON_FP2_GEN_CNTL); + if (rdev->family >= CHIP_R200) + disp_tv_out_cntl = RREG32(RADEON_DISP_TV_OUT_CNTL); + if (is_tv) { uint32_t dac_cntl; @@ -1002,15 +1000,13 @@ static void radeon_legacy_tv_dac_mode_set(struct drm_encoder *encoder, if (ASIC_IS_R300(rdev)) { WREG32_P(RADEON_GPIOPAD_A, gpiopad_a, ~1); WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl); - } + } else if (rdev->family != CHIP_R200) + WREG32(RADEON_DISP_HW_DEBUG, disp_hw_debug); + else if (rdev->family == CHIP_R200) + WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl); if (rdev->family >= CHIP_R200) WREG32(RADEON_DISP_TV_OUT_CNTL, disp_tv_out_cntl); - else - WREG32(RADEON_DISP_HW_DEBUG, disp_hw_debug); - - if (rdev->family == CHIP_R200) - WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl); if (is_tv) radeon_legacy_tv_mode_set(encoder, mode, adjusted_mode); -- cgit v1.1 From f5c5f040b565435e9a85898dc87ab365395e0603 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 11 Jun 2010 14:40:16 +1000 Subject: radeon/kms: fix powerpc/rn50 untiled behaviour. Installing 2.6.34 on a Power5/rn50 combo machine, X showed buggy sw rendering, enabling tiling in the DDX fixed it. Investigation showed that a further /16 was needed in the untiled case on this chipset. Need further investigations on what other chips this could affect, possibly rv100->rv280. Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r100.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index cf89aa2..1930db6 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -2604,12 +2604,6 @@ int r100_set_surface_reg(struct radeon_device *rdev, int reg, int surf_index = reg * 16; int flags = 0; - /* r100/r200 divide by 16 */ - if (rdev->family < CHIP_R300) - flags = pitch / 16; - else - flags = pitch / 8; - if (rdev->family <= CHIP_RS200) { if ((tiling_flags & (RADEON_TILING_MACRO|RADEON_TILING_MICRO)) == (RADEON_TILING_MACRO|RADEON_TILING_MICRO)) @@ -2633,6 +2627,20 @@ int r100_set_surface_reg(struct radeon_device *rdev, int reg, if (tiling_flags & RADEON_TILING_SWAP_32BIT) flags |= RADEON_SURF_AP0_SWP_32BPP | RADEON_SURF_AP1_SWP_32BPP; + /* when we aren't tiling the pitch seems to needs to be furtherdivided down. - tested on power5 + rn50 server */ + if (tiling_flags & (RADEON_TILING_SWAP_16BIT | RADEON_TILING_SWAP_32BIT)) { + if (!(tiling_flags & (RADEON_TILING_MACRO | RADEON_TILING_MICRO))) + if (ASIC_IS_RN50(rdev)) + pitch /= 16; + } + + /* r100/r200 divide by 16 */ + if (rdev->family < CHIP_R300) + flags |= pitch / 16; + else + flags |= pitch / 8; + + DRM_DEBUG("writing surface %d %d %x %x\n", reg, flags, offset, offset+obj_size-1); WREG32(RADEON_SURFACE0_INFO + surf_index, flags); WREG32(RADEON_SURFACE0_LOWER_BOUND + surf_index, offset); -- cgit v1.1 From da931a931da85218add949266238c54b5fecd37f Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 15 Jun 2010 09:52:37 +1000 Subject: agp: drop vmalloc flag. Since the code that was too ugly to live is upstream, we can use it now, instead of rolling our own. Signed-off-by: Dave Airlie --- drivers/char/agp/generic.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c index 4b51982..4e41441 100644 --- a/drivers/char/agp/generic.c +++ b/drivers/char/agp/generic.c @@ -97,20 +97,18 @@ EXPORT_SYMBOL(agp_flush_chipset); void agp_alloc_page_array(size_t size, struct agp_memory *mem) { mem->pages = NULL; - mem->vmalloc_flag = false; if (size <= 2*PAGE_SIZE) mem->pages = kmalloc(size, GFP_KERNEL | __GFP_NORETRY); if (mem->pages == NULL) { mem->pages = vmalloc(size); - mem->vmalloc_flag = true; } } EXPORT_SYMBOL(agp_alloc_page_array); void agp_free_page_array(struct agp_memory *mem) { - if (mem->vmalloc_flag) { + if (is_vmalloc_addr(mem->pages)) { vfree(mem->pages); } else { kfree(mem->pages); -- cgit v1.1 From 1c48bc5f71cd7783e19fb8d9462be53f829be177 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 15 Jun 2010 11:02:05 +1000 Subject: agp: add no warn since we have a fallback to vmalloc paths also drop the NORETRY we can probably nearly always satisfy order 1 allocs now, and again the vmalloc path is there. Signed-off-by: Dave Airlie --- drivers/char/agp/generic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c index 4e41441..d2abf51 100644 --- a/drivers/char/agp/generic.c +++ b/drivers/char/agp/generic.c @@ -99,7 +99,7 @@ void agp_alloc_page_array(size_t size, struct agp_memory *mem) mem->pages = NULL; if (size <= 2*PAGE_SIZE) - mem->pages = kmalloc(size, GFP_KERNEL | __GFP_NORETRY); + mem->pages = kmalloc(size, GFP_KERNEL | __GFP_NOWARN); if (mem->pages == NULL) { mem->pages = vmalloc(size); } -- cgit v1.1 From 45ac22c81b1088f5ac08dc5367f78c192d68d756 Mon Sep 17 00:00:00 2001 From: Li Peng Date: Sat, 12 Jun 2010 23:38:35 +0800 Subject: drm/i915: Turn on 945 self-refresh only if single CRTC is active Enable self-refresh on 945 when just one CRTC is activated. Otherwise user would get display flicker with dual display. This fixes https://bugs.freedesktop.org/show_bug.cgi?id=27667 Signed-off-by: Li Peng Reviewed-by: Adam Jackson Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_display.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index a8d65b7..fdeff43 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4483,6 +4483,7 @@ static void intel_idle_update(struct work_struct *work) struct drm_device *dev = dev_priv->dev; struct drm_crtc *crtc; struct intel_crtc *intel_crtc; + int enabled = 0; if (!i915_powersave) return; @@ -4491,21 +4492,22 @@ static void intel_idle_update(struct work_struct *work) i915_update_gfx_val(dev_priv); - if (IS_I945G(dev) || IS_I945GM(dev)) { - DRM_DEBUG_DRIVER("enable memory self refresh on 945\n"); - I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN_MASK | FW_BLC_SELF_EN); - } - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { /* Skip inactive CRTCs */ if (!crtc->fb) continue; + enabled++; intel_crtc = to_intel_crtc(crtc); if (!intel_crtc->busy) intel_decrease_pllclock(crtc); } + if ((enabled == 1) && (IS_I945G(dev) || IS_I945GM(dev))) { + DRM_DEBUG_DRIVER("enable memory self refresh on 945\n"); + I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN_MASK | FW_BLC_SELF_EN); + } + mutex_unlock(&dev->struct_mutex); } -- cgit v1.1 From be26a10bd10271b4a810ece2e540c0cdd77881bc Mon Sep 17 00:00:00 2001 From: Zou Nan hai Date: Sat, 12 Jun 2010 17:40:24 +0800 Subject: drm/i915: Fix incorrect intel_ring_begin size in BSD ringbuffer. The ring_begin API was taking a number of bytes, while all of our other begin/end macros take number of dwords. Change the API over to dwords to prevent future bugs. Signed-off-by: Zou Nan hai Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_drv.h | 2 +- drivers/gpu/drm/i915/intel_ringbuffer.c | 9 +++++---- 2 files changed, 6 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 9ed8ecd..f3f681f 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1075,7 +1075,7 @@ extern int intel_trans_dp_port_sel (struct drm_crtc *crtc); drm_i915_private_t *dev_priv = dev->dev_private; \ if (I915_VERBOSE) \ DRM_DEBUG(" BEGIN_LP_RING %x\n", (int)(n)); \ - intel_ring_begin(dev, &dev_priv->render_ring, 4*(n)); \ + intel_ring_begin(dev, &dev_priv->render_ring, (n)); \ } while (0) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index cea4f1a..a3cac57 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -94,7 +94,7 @@ render_ring_flush(struct drm_device *dev, #if WATCH_EXEC DRM_INFO("%s: queue flush %08x to ring\n", __func__, cmd); #endif - intel_ring_begin(dev, ring, 8); + intel_ring_begin(dev, ring, 2); intel_ring_emit(dev, ring, cmd); intel_ring_emit(dev, ring, MI_NOOP); intel_ring_advance(dev, ring); @@ -358,7 +358,7 @@ bsd_ring_flush(struct drm_device *dev, u32 invalidate_domains, u32 flush_domains) { - intel_ring_begin(dev, ring, 8); + intel_ring_begin(dev, ring, 2); intel_ring_emit(dev, ring, MI_FLUSH); intel_ring_emit(dev, ring, MI_NOOP); intel_ring_advance(dev, ring); @@ -721,8 +721,9 @@ int intel_wait_ring_buffer(struct drm_device *dev, } void intel_ring_begin(struct drm_device *dev, - struct intel_ring_buffer *ring, int n) + struct intel_ring_buffer *ring, int num_dwords) { + int n = 4*num_dwords; if (unlikely(ring->tail + n > ring->size)) intel_wrap_ring_buffer(dev, ring); if (unlikely(ring->space < n)) @@ -752,7 +753,7 @@ void intel_fill_struct(struct drm_device *dev, { unsigned int *virt = ring->virtual_start + ring->tail; BUG_ON((len&~(4-1)) != 0); - intel_ring_begin(dev, ring, len); + intel_ring_begin(dev, ring, len/4); memcpy(virt, data, len); ring->tail += len; ring->tail &= ring->size - 1; -- cgit v1.1 From 79600aadcf35dd31ec284928cf45296fea98db61 Mon Sep 17 00:00:00 2001 From: "Stephen M. Cameron" Date: Tue, 15 Jun 2010 08:12:34 +0200 Subject: cciss: set SCSI max cmd len to 16, as default is wrong Signed-off-by: Stephen M. Cameron Cc: Mike Miller Signed-off-by: Andrew Morton Signed-off-by: Jens Axboe --- drivers/block/cciss_scsi.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c index 3381505..72dae92 100644 --- a/drivers/block/cciss_scsi.c +++ b/drivers/block/cciss_scsi.c @@ -861,6 +861,7 @@ cciss_scsi_detect(int ctlr) sh->n_io_port = 0; // I don't think we use these two... sh->this_id = SELF_SCSI_ID; sh->sg_tablesize = hba[ctlr]->maxsgentries; + sh->max_cmd_len = MAX_COMMAND_SIZE; ((struct cciss_scsi_adapter_data_t *) hba[ctlr]->scsi_ctlr)->scsi_host = sh; -- cgit v1.1 From 256a8042830e6ac1c3dd2e912e3c45769dd709cc Mon Sep 17 00:00:00 2001 From: Janusz Krzysztofik Date: Mon, 17 May 2010 03:20:13 +0200 Subject: OMAPFB: LCDC: change update_mode to DISABLED when going suspend I was observing the following error messages on my OMAP1 based Amstrad Delta board when first changing from text to graphics mode or vice versa after the LCD display had been blanked: omapfb omapfb: timeout waiting for FRAME DONE with a followup error message while unblanking it back: omapfb omapfb: resetting (status 0xffffffb2,reset count 1) As a visible result, image pixels happened to be shifted by a few bits, giving wrong colors. Examining the code, I found that this problem occures when an OMAP1 internal LCD controller is disabled from omap_lcdc_suspend() and then a subsequent omap_lcdc_setup_plane() calls disable_controller() again. This potentially error provoking behaviour is triggered by the lcdc.update_mode flag being kept at OMAP_AUTO_UPDATE, regardless of the controller and panel being suspended. This patch tries to correct the problem by replacing both omap_lcdc_suspend() and omap_lcdc_resume() function bodies with single calls to omap_lcdc_set_update_mode() with a respective OMAP_UPDATE_DISABLE or OMAP_AUTO_UPDATE argument. As a result, exactly the same lower level operations are performed, with addition of changing the lcdc.update_mode flag to a value better suited for the controller state. This prevents any further calls to disable_controller() from omap_lcdc_setup_plane() while the display is suspended. Created against linux-2.6.34-rc7. Tested on Amstrad Delta. Signed-off-by: Janusz Krzysztofik Signed-off-by: Tomi Valkeinen --- drivers/video/omap/lcdc.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/video/omap/lcdc.c b/drivers/video/omap/lcdc.c index 43ab7d8..7767338 100644 --- a/drivers/video/omap/lcdc.c +++ b/drivers/video/omap/lcdc.c @@ -572,22 +572,12 @@ static enum omapfb_update_mode omap_lcdc_get_update_mode(void) /* PM code called only in internal controller mode */ static void omap_lcdc_suspend(void) { - if (lcdc.update_mode == OMAPFB_AUTO_UPDATE) { - disable_controller(); - omap_stop_lcd_dma(); - } + omap_lcdc_set_update_mode(OMAPFB_UPDATE_DISABLED); } static void omap_lcdc_resume(void) { - if (lcdc.update_mode == OMAPFB_AUTO_UPDATE) { - setup_regs(); - load_palette(); - setup_lcd_dma(); - set_load_mode(OMAP_LCDC_LOAD_FRAME); - enable_irqs(OMAP_LCDC_IRQ_DONE); - enable_controller(); - } + omap_lcdc_set_update_mode(OMAPFB_AUTO_UPDATE); } static void omap_lcdc_get_caps(int plane, struct omapfb_caps *caps) -- cgit v1.1 From bc092a303a1b980c67324920471e23354b0721cd Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Mon, 7 Jun 2010 10:46:10 +0300 Subject: OMAP: OMAPFB: fix rfbi.c compile error The code in rfbi.c tried to get the omapdss platform_device via a static member defined in dispc.c, leading to a compile error. The same platform_device is available through rfbi-struct. Signed-off-by: Tomi Valkeinen --- drivers/video/omap/rfbi.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/video/omap/rfbi.c b/drivers/video/omap/rfbi.c index 1162603..eada9f1 100644 --- a/drivers/video/omap/rfbi.c +++ b/drivers/video/omap/rfbi.c @@ -26,6 +26,7 @@ #include #include #include +#include #include "omapfb.h" #include "dispc.h" @@ -83,13 +84,13 @@ static inline u32 rfbi_read_reg(int idx) static int rfbi_get_clocks(void) { - rfbi.dss_ick = clk_get(&dispc.fbdev->dssdev->dev, "ick"); + rfbi.dss_ick = clk_get(&rfbi.fbdev->dssdev->dev, "ick"); if (IS_ERR(rfbi.dss_ick)) { dev_err(rfbi.fbdev->dev, "can't get ick\n"); return PTR_ERR(rfbi.dss_ick); } - rfbi.dss1_fck = clk_get(&dispc.fbdev->dssdev->dev, "dss1_fck"); + rfbi.dss1_fck = clk_get(&rfbi.fbdev->dssdev->dev, "dss1_fck"); if (IS_ERR(rfbi.dss1_fck)) { dev_err(rfbi.fbdev->dev, "can't get dss1_fck\n"); clk_put(rfbi.dss_ick); -- cgit v1.1 From 25cbff1660d3f4c059a178a1e5b851be6d70c5e8 Mon Sep 17 00:00:00 2001 From: Sheng Yang Date: Sat, 12 Jun 2010 19:21:42 +0800 Subject: intel-iommu: Fix reference by physical address in intel_iommu_attach_device() Commit a99c47a2 "intel-iommu: errors with smaller iommu widths" replace the dmar_domain->pgd with the first entry of page table when iommu's supported width is smaller than dmar_domain's. But it use physical address directly for new dmar_domain->pgd... This result in KVM oops with VT-d on some machines. Reported-by: Allen Kay Cc: Tom Lyon Signed-off-by: Sheng Yang Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 796828f..3bd3055 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -3603,7 +3603,8 @@ static int intel_iommu_attach_device(struct iommu_domain *domain, pte = dmar_domain->pgd; if (dma_pte_present(pte)) { free_pgtable_page(dmar_domain->pgd); - dmar_domain->pgd = (struct dma_pte *)dma_pte_addr(pte); + dmar_domain->pgd = (struct dma_pte *) + phys_to_virt(dma_pte_addr(pte)); } dmar_domain->agaw--; } -- cgit v1.1 From 00dfff77e7184140dc45724c7232e99302f6bf97 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 14 Jun 2010 17:17:32 +0200 Subject: intel-iommu: Fix double lock in get_domain_for_dev() stanse found the following double lock. In get_domain_for_dev: spin_lock_irqsave(&device_domain_lock, flags); domain_exit(domain); domain_remove_dev_info(domain); spin_lock_irqsave(&device_domain_lock, flags); spin_unlock_irqrestore(&device_domain_lock, flags); spin_unlock_irqrestore(&device_domain_lock, flags); This happens when the domain is created by another CPU at the same time as this function is creating one, and the other CPU wins the race to attach it to the device in question, so we have to destroy our own newly-created one. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 3bd3055..bf8fd91 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -1874,14 +1874,15 @@ static struct dmar_domain *get_domain_for_dev(struct pci_dev *pdev, int gaw) } } if (found) { + spin_unlock_irqrestore(&device_domain_lock, flags); free_devinfo_mem(info); domain_exit(domain); domain = found; } else { list_add(&info->link, &domain->devices); list_add(&info->global, &device_domain_list); + spin_unlock_irqrestore(&device_domain_lock, flags); } - spin_unlock_irqrestore(&device_domain_lock, flags); } found_domain: -- cgit v1.1 From 2d9e667efdfb4e986074d98e7d9a424003c7c43b Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Tue, 15 Jun 2010 10:57:57 +0100 Subject: intel-iommu: Force-disable IOMMU for iGFX on broken Cantiga revisions. Certain revisions of this chipset appear to be broken. There is a shadow GTT which mirrors the real GTT but contains pre-translated physical addresses, for performance reasons. When a GTT update happens, the translations are done once and the resulting physical addresses written back to the shadow GTT. Except sometimes, the physical address is actually written back to the _real_ GTT, not the shadow GTT. Thus we start to see faults when that physical address is fed through translation again. Signed-off-by: David Woodhouse --- drivers/pci/intel-iommu.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index bf8fd91..c9171be 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -340,7 +340,7 @@ int dmar_disabled = 0; int dmar_disabled = 1; #endif /*CONFIG_DMAR_DEFAULT_ON*/ -static int __initdata dmar_map_gfx = 1; +static int dmar_map_gfx = 1; static int dmar_forcedac; static int intel_iommu_strict; @@ -3721,6 +3721,12 @@ static void __devinit quirk_iommu_rwbf(struct pci_dev *dev) */ printk(KERN_INFO "DMAR: Forcing write-buffer flush capability\n"); rwbf_quirk = 1; + + /* https://bugzilla.redhat.com/show_bug.cgi?id=538163 */ + if (dev->revision == 0x07) { + printk(KERN_INFO "DMAR: Disabling IOMMU for graphics on this chipset\n"); + dmar_map_gfx = 0; + } } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2a40, quirk_iommu_rwbf); -- cgit v1.1 From a69b03e941abae00380fc6bc1877fb797a1b31e6 Mon Sep 17 00:00:00 2001 From: "John W. Linville" Date: Mon, 14 Jun 2010 14:30:25 -0400 Subject: iwlwifi: cancel scan watchdog in iwl_bg_abort_scan Avoids this: WARNING: at net/mac80211/scan.c:312 ieee80211_scan_completed+0x5f/0x1f1 [mac80211]() Hardware name: Latitude E5400 Modules linked in: aes_x86_64 aes_generic fuse ipt_MASQUERADE iptable_nat nf_nat rfcomm sco bridge stp llc bnep l2cap sunrpc cpufreq_ondemand acpi_cpufreq freq_table xt_physdev ip6t_REJECT nf_conntrack_ipv6 ip6table_filter ip6_tables ipv6 kvm_intel kvm uinput arc4 ecb snd_hda_codec_intelhdmi snd_hda_codec_idt snd_hda_intel iwlagn snd_hda_codec snd_hwdep snd_seq snd_seq_device iwlcore snd_pcm dell_wmi sdhci_pci sdhci iTCO_wdt tg3 dell_laptop mmc_core i2c_i801 wmi mac80211 snd_timer iTCO_vendor_support btusb joydev dcdbas cfg80211 bluetooth snd soundcore microcode rfkill snd_page_alloc firewire_ohci firewire_core crc_itu_t yenta_socket rsrc_nonstatic i915 drm_kms_helper drm i2c_algo_bit i2c_core video output [last unloaded: scsi_wait_scan] Pid: 979, comm: iwlagn Tainted: G W 2.6.33.3-85.fc13.x86_64 #1 Call Trace: [] warn_slowpath_common+0x77/0x8f [] warn_slowpath_null+0xf/0x11 [] ieee80211_scan_completed+0x5f/0x1f1 [mac80211] [] iwl_bg_scan_completed+0xbb/0x17a [iwlcore] [] worker_thread+0x1a4/0x232 [] ? iwl_bg_scan_completed+0x0/0x17a [iwlcore] [] ? autoremove_wake_function+0x0/0x34 [] ? worker_thread+0x0/0x232 [] kthread+0x7a/0x82 [] kernel_thread_helper+0x4/0x10 [] ? kthread+0x0/0x82 [] ? kernel_thread_helper+0x0/0x10 Reported here: https://bugzilla.redhat.com/show_bug.cgi?id=590436 Signed-off-by: John W. Linville Reported-by: Mihai Harpau Cc: stable@kernel.org Acked-by: Reinette Chatre --- drivers/net/wireless/iwlwifi/iwl-scan.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index 5d3f51f..386c5f9 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -491,6 +491,7 @@ void iwl_bg_abort_scan(struct work_struct *work) mutex_lock(&priv->mutex); + cancel_delayed_work_sync(&priv->scan_check); set_bit(STATUS_SCAN_ABORTING, &priv->status); iwl_send_scan_abort(priv); -- cgit v1.1 From 84cc1535cb9043ea1921b81cb086138c0f2dc2b9 Mon Sep 17 00:00:00 2001 From: "Morten H. Larsen" Date: Tue, 15 Jun 2010 13:24:58 -0400 Subject: alpha: Fix de2104x driver failing to readout MAC address correctly This patch fixes a missing read memory barrier that is needed for the driver to readout the MAC address correctly from the on-board ROM. Also it replaces the use of the deprecated functions readl()/writel(). Signed-off-by: Morten H. Larsen Signed-off-by: Matt Turner --- drivers/net/tulip/de2104x.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c index c0e7000..06b552f 100644 --- a/drivers/net/tulip/de2104x.c +++ b/drivers/net/tulip/de2104x.c @@ -367,8 +367,8 @@ static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x6F3F, 0x6F3D, }; static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, }; -#define dr32(reg) readl(de->regs + (reg)) -#define dw32(reg,val) writel((val), de->regs + (reg)) +#define dr32(reg) ioread32(de->regs + (reg)) +#define dw32(reg, val) iowrite32((val), de->regs + (reg)) static void de_rx_err_acct (struct de_private *de, unsigned rx_tail, @@ -1706,6 +1706,7 @@ static void __devinit de21040_get_mac_address (struct de_private *de) int value, boguscnt = 100000; do { value = dr32(ROMCmd); + rmb(); } while (value < 0 && --boguscnt > 0); de->dev->dev_addr[i] = value; udelay(1); -- cgit v1.1 From d6a574ff6bfb842bdb98065da053881ff527be46 Mon Sep 17 00:00:00 2001 From: Tim Gardner Date: Tue, 8 Jun 2010 11:33:02 -0600 Subject: hostap: Protect against initialization interrupt Use an irq spinlock to hold off the IRQ handler until enough early card init is complete such that the handler can run without faulting. Signed-off-by: Tim Gardner Cc: stable@kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/hostap/hostap_cs.c | 15 +++++++++++++-- drivers/net/wireless/hostap/hostap_hw.c | 13 +++++++++++++ drivers/net/wireless/hostap/hostap_wlan.h | 2 +- 3 files changed, 27 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c index db72461..29b31a6 100644 --- a/drivers/net/wireless/hostap/hostap_cs.c +++ b/drivers/net/wireless/hostap/hostap_cs.c @@ -594,6 +594,7 @@ static int prism2_config(struct pcmcia_device *link) local_info_t *local; int ret = 1; struct hostap_cs_priv *hw_priv; + unsigned long flags; PDEBUG(DEBUG_FLOW, "prism2_config()\n"); @@ -625,9 +626,15 @@ static int prism2_config(struct pcmcia_device *link) local->hw_priv = hw_priv; hw_priv->link = link; + /* + * Make sure the IRQ handler cannot proceed until at least + * dev->base_addr is initialized. + */ + spin_lock_irqsave(&local->irq_init_lock, flags); + ret = pcmcia_request_irq(link, prism2_interrupt); if (ret) - goto failed; + goto failed_unlock; /* * This actually configures the PCMCIA socket -- setting up @@ -636,11 +643,13 @@ static int prism2_config(struct pcmcia_device *link) */ ret = pcmcia_request_configuration(link, &link->conf); if (ret) - goto failed; + goto failed_unlock; dev->irq = link->irq; dev->base_addr = link->io.BasePort1; + spin_unlock_irqrestore(&local->irq_init_lock, flags); + /* Finally, report what we've done */ printk(KERN_INFO "%s: index 0x%02x: ", dev_info, link->conf.ConfigIndex); @@ -667,6 +676,8 @@ static int prism2_config(struct pcmcia_device *link) return ret; + failed_unlock: + spin_unlock_irqrestore(&local->irq_init_lock, flags); failed: kfree(hw_priv); prism2_release((u_long)link); diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c index ff9b5c8..2f999fc 100644 --- a/drivers/net/wireless/hostap/hostap_hw.c +++ b/drivers/net/wireless/hostap/hostap_hw.c @@ -2621,6 +2621,18 @@ static irqreturn_t prism2_interrupt(int irq, void *dev_id) iface = netdev_priv(dev); local = iface->local; + /* Detect early interrupt before driver is fully configued */ + spin_lock(&local->irq_init_lock); + if (!dev->base_addr) { + if (net_ratelimit()) { + printk(KERN_DEBUG "%s: Interrupt, but dev not configured\n", + dev->name); + } + spin_unlock(&local->irq_init_lock); + return IRQ_HANDLED; + } + spin_unlock(&local->irq_init_lock); + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INTERRUPT, 0, 0); if (local->func->card_present && !local->func->card_present(local)) { @@ -3138,6 +3150,7 @@ prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx, spin_lock_init(&local->cmdlock); spin_lock_init(&local->baplock); spin_lock_init(&local->lock); + spin_lock_init(&local->irq_init_lock); mutex_init(&local->rid_bap_mtx); if (card_idx < 0 || card_idx >= MAX_PARM_DEVICES) diff --git a/drivers/net/wireless/hostap/hostap_wlan.h b/drivers/net/wireless/hostap/hostap_wlan.h index 3d23891..1ba33be 100644 --- a/drivers/net/wireless/hostap/hostap_wlan.h +++ b/drivers/net/wireless/hostap/hostap_wlan.h @@ -654,7 +654,7 @@ struct local_info { rwlock_t iface_lock; /* hostap_interfaces read lock; use write lock * when removing entries from the list. * TX and RX paths can use read lock. */ - spinlock_t cmdlock, baplock, lock; + spinlock_t cmdlock, baplock, lock, irq_init_lock; struct mutex rid_bap_mtx; u16 infofid; /* MAC buffer id for info frame */ /* txfid, intransmitfid, next_txtid, and next_alloc are protected by -- cgit v1.1 From 44b496f685ca68c0d96eb3ad88e3948fad3417d6 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Fri, 11 Jun 2010 04:44:55 +0000 Subject: pcmcia: dev_node removal bugfix Patch c7c2fa07 removed one line too much from smc91c92_cs.c. Reported-by: Komuro CC: netdev@vger.kernel.org CC: linux-wireless@vger.kernel.org Signed-off-by: Dominik Brodowski Signed-off-by: David S. Miller --- drivers/net/pcmcia/smc91c92_cs.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c index 7b6fe89..64e6a84 100644 --- a/drivers/net/pcmcia/smc91c92_cs.c +++ b/drivers/net/pcmcia/smc91c92_cs.c @@ -322,6 +322,7 @@ static int smc91c92_probe(struct pcmcia_device *link) return -ENOMEM; smc = netdev_priv(dev); smc->p_dev = link; + link->priv = dev; spin_lock_init(&smc->lock); link->io.NumPorts1 = 16; -- cgit v1.1 From bf445080dad9542c6bc6b693d941cae89605134c Mon Sep 17 00:00:00 2001 From: Amit Kumar Salecha Date: Sun, 13 Jun 2010 23:39:03 +0000 Subject: netxen: fix memory leaks in error path Fixes memory leak in error path when memory allocation for adapter data structures fails. Signed-off-by: Amit Kumar Salecha Signed-off-by: David S. Miller --- drivers/net/netxen/netxen_nic_ctx.c | 3 ++- drivers/net/netxen/netxen_nic_init.c | 4 ++-- 2 files changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/netxen/netxen_nic_ctx.c b/drivers/net/netxen/netxen_nic_ctx.c index f26e547..3a41b6a 100644 --- a/drivers/net/netxen/netxen_nic_ctx.c +++ b/drivers/net/netxen/netxen_nic_ctx.c @@ -629,7 +629,8 @@ int netxen_alloc_hw_resources(struct netxen_adapter *adapter) if (addr == NULL) { dev_err(&pdev->dev, "%s: failed to allocate tx desc ring\n", netdev->name); - return -ENOMEM; + err = -ENOMEM; + goto err_out_free; } tx_ring->desc_head = (struct cmd_desc_type0 *)addr; diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c index 045a7c8..e08527f 100644 --- a/drivers/net/netxen/netxen_nic_init.c +++ b/drivers/net/netxen/netxen_nic_init.c @@ -218,7 +218,7 @@ int netxen_alloc_sw_resources(struct netxen_adapter *adapter) if (cmd_buf_arr == NULL) { dev_err(&pdev->dev, "%s: failed to allocate cmd buffer ring\n", netdev->name); - return -ENOMEM; + goto err_out; } memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring)); tx_ring->cmd_buf_arr = cmd_buf_arr; @@ -230,7 +230,7 @@ int netxen_alloc_sw_resources(struct netxen_adapter *adapter) if (rds_ring == NULL) { dev_err(&pdev->dev, "%s: failed to allocate rds ring struct\n", netdev->name); - return -ENOMEM; + goto err_out; } recv_ctx->rds_rings = rds_ring; -- cgit v1.1 From 2227bae22becb88b75ede022c7bb991aabfb50bb Mon Sep 17 00:00:00 2001 From: Amit Kumar Salecha Date: Sun, 13 Jun 2010 23:39:04 +0000 Subject: netxen: fix rcv buffer leak Rcv producer should be read in spin-lock. Signed-off-by: Amit Kumar Salecha Signed-off-by: David S. Miller --- drivers/net/netxen/netxen_nic_init.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c index e08527f..c865dda 100644 --- a/drivers/net/netxen/netxen_nic_init.c +++ b/drivers/net/netxen/netxen_nic_init.c @@ -1805,9 +1805,10 @@ netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid, netxen_ctx_msg msg = 0; struct list_head *head; + spin_lock(&rds_ring->lock); + producer = rds_ring->producer; - spin_lock(&rds_ring->lock); head = &rds_ring->free_list; while (!list_empty(head)) { @@ -1829,7 +1830,6 @@ netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid, producer = get_next_index(producer, rds_ring->num_desc); } - spin_unlock(&rds_ring->lock); if (count) { rds_ring->producer = producer; @@ -1853,6 +1853,8 @@ netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid, NETXEN_RCV_PRODUCER_OFFSET), msg); } } + + spin_unlock(&rds_ring->lock); } static void @@ -1864,10 +1866,11 @@ netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter, int producer, count = 0; struct list_head *head; - producer = rds_ring->producer; if (!spin_trylock(&rds_ring->lock)) return; + producer = rds_ring->producer; + head = &rds_ring->free_list; while (!list_empty(head)) { -- cgit v1.1 From 7e43cd66d36e8f0900e87d9d287c9ee649cbdd07 Mon Sep 17 00:00:00 2001 From: Amit Kumar Salecha Date: Sun, 13 Jun 2010 23:39:05 +0000 Subject: netxen: fix caching window register CRB window register is not per pci-func for NX3031, so caching can result in incorrect values. Signed-off-by: Amit Kumar Salecha Signed-off-by: David S. Miller --- drivers/net/netxen/netxen_nic_hw.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c index 5c496f8..29d7b93d0 100644 --- a/drivers/net/netxen/netxen_nic_hw.c +++ b/drivers/net/netxen/netxen_nic_hw.c @@ -1159,9 +1159,6 @@ netxen_nic_pci_set_crbwindow_2M(struct netxen_adapter *adapter, ulong off) window = CRB_HI(off); - if (adapter->ahw.crb_win == window) - return; - writel(window, addr); if (readl(addr) != window) { if (printk_ratelimit()) @@ -1169,7 +1166,6 @@ netxen_nic_pci_set_crbwindow_2M(struct netxen_adapter *adapter, ulong off) "failed to set CRB window to %d off 0x%lx\n", window, off); } - adapter->ahw.crb_win = window; } static void __iomem * -- cgit v1.1 From 97553f7f3e7a0305d017df9cc6e9589f64878437 Mon Sep 17 00:00:00 2001 From: Manfred Rudigier Date: Fri, 11 Jun 2010 01:49:05 +0000 Subject: gianfar: Fix setup of RX time stamping Previously the RCTRL_TS_ENABLE bit was set unconditionally. However, if the RCTRL_TS_ENABLE is set without TMR_CTRL[TE], the driver does not work properly on some boards (Anton had problems with the MPC8313ERDB and MPC8568EMDS). With this patch the bit will only be set if requested from user space with the SIOCSHWTSTAMP ioctl command, meaning that time stamping is disabled during normal operation. Users who are not interested in time stamps will not experience problems with buggy CPU revisions or performance drops any more. The setting of TMR_CTRL[TE] is still up to the user. This is considered safe because users wanting HW timestamps must initialize the eTSEC clock first anyway, e.g. with the recently submitted PTP clock driver. Signed-off-by: Manfred Rudigier Reviewed-by: Anton Vorontsov Signed-off-by: David S. Miller --- drivers/net/gianfar.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 46c69cd..227b628 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -381,10 +381,14 @@ static void gfar_init_mac(struct net_device *ndev) /* Insert receive time stamps into padding alignment bytes */ if (priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER) { rctrl &= ~RCTRL_PAL_MASK; - rctrl |= RCTRL_PRSDEP_INIT | RCTRL_TS_ENABLE | RCTRL_PADDING(8); + rctrl |= RCTRL_PADDING(8); priv->padding = 8; } + /* Enable HW time stamping if requested from user space */ + if (priv->hwts_rx_en) + rctrl |= RCTRL_PRSDEP_INIT | RCTRL_TS_ENABLE; + /* keep vlan related bits if it's enabled */ if (priv->vlgrp) { rctrl |= RCTRL_VLEX | RCTRL_PRSDEP_INIT; @@ -747,7 +751,8 @@ static int gfar_of_init(struct of_device *ofdev, struct net_device **pdev) FSL_GIANFAR_DEV_HAS_CSUM | FSL_GIANFAR_DEV_HAS_VLAN | FSL_GIANFAR_DEV_HAS_MAGIC_PACKET | - FSL_GIANFAR_DEV_HAS_EXTENDED_HASH; + FSL_GIANFAR_DEV_HAS_EXTENDED_HASH | + FSL_GIANFAR_DEV_HAS_TIMER; ctype = of_get_property(np, "phy-connection-type", NULL); @@ -805,12 +810,20 @@ static int gfar_hwtstamp_ioctl(struct net_device *netdev, switch (config.rx_filter) { case HWTSTAMP_FILTER_NONE: - priv->hwts_rx_en = 0; + if (priv->hwts_rx_en) { + stop_gfar(netdev); + priv->hwts_rx_en = 0; + startup_gfar(netdev); + } break; default: if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER)) return -ERANGE; - priv->hwts_rx_en = 1; + if (!priv->hwts_rx_en) { + stop_gfar(netdev); + priv->hwts_rx_en = 1; + startup_gfar(netdev); + } config.rx_filter = HWTSTAMP_FILTER_ALL; break; } -- cgit v1.1 From 756725064fe6abbcdb43b1e64d017649b828be35 Mon Sep 17 00:00:00 2001 From: Don Skidmore Date: Tue, 15 Jun 2010 09:23:17 +0000 Subject: ixgbe: add comment on SFP+ ID for Active DA These comments were forgotten in the initial patch to add this functionality. This patch corrects that. Signed-off-by: Don Skidmore Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ixgbe/ixgbe_phy.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ixgbe/ixgbe_phy.c b/drivers/net/ixgbe/ixgbe_phy.c index 09e1911..48325a5 100644 --- a/drivers/net/ixgbe/ixgbe_phy.c +++ b/drivers/net/ixgbe/ixgbe_phy.c @@ -575,6 +575,8 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw) * 4 SFP_DA_CORE1 - 82599-specific * 5 SFP_SR/LR_CORE0 - 82599-specific * 6 SFP_SR/LR_CORE1 - 82599-specific + * 7 SFP_act_lmt_DA_CORE0 - 82599-specific + * 8 SFP_act_lmt_DA_CORE1 - 82599-specific */ if (hw->mac.type == ixgbe_mac_82598EB) { if (cable_tech & IXGBE_SFF_DA_PASSIVE_CABLE) -- cgit v1.1 From a91fb143de61dce847e319ca79b9937a665ad622 Mon Sep 17 00:00:00 2001 From: Jan-Bernd Themann Date: Tue, 15 Jun 2010 05:35:16 +0000 Subject: ehea: fix delayed packet processing In the eHEA poll function an rmb() is required. Without that some packets on the receive queue are not seen and thus delayed until the next interrupt is handled for the same receive queue. Signed-off-by: Jan-Bernd Themann Signed-off-by: Jay Vosburgh Signed-off-by: David S. Miller --- drivers/net/ehea/ehea_main.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c index f547894..fd890fa 100644 --- a/drivers/net/ehea/ehea_main.c +++ b/drivers/net/ehea/ehea_main.c @@ -867,6 +867,7 @@ static int ehea_poll(struct napi_struct *napi, int budget) ehea_reset_cq_ep(pr->send_cq); ehea_reset_cq_n1(pr->recv_cq); ehea_reset_cq_n1(pr->send_cq); + rmb(); cqe = ehea_poll_rq1(pr->qp, &wqe_index); cqe_skb = ehea_poll_cq(pr->send_cq); -- cgit v1.1 From 099473c16bac7b936994bc95b5fd96f36397e1ad Mon Sep 17 00:00:00 2001 From: Jan-Bernd Themann Date: Tue, 15 Jun 2010 05:35:42 +0000 Subject: ehea: Fix kernel deadlock in DLPAR-mem processing Port reset operations and memory add/remove operations need to be serialized to avoid a kernel deadlock. The deadlock is caused by calling the napi_disable() function twice. Therefore we have to employ the dlpar_mem_lock in the ehea_reset_port function as well Signed-off-by: Jan-Bernd Themann Signed-off-by: David S. Miller --- drivers/net/ehea/ehea.h | 2 +- drivers/net/ehea/ehea_main.c | 8 +++----- 2 files changed, 4 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ehea/ehea.h b/drivers/net/ehea/ehea.h index 0630980..0060e42 100644 --- a/drivers/net/ehea/ehea.h +++ b/drivers/net/ehea/ehea.h @@ -40,7 +40,7 @@ #include #define DRV_NAME "ehea" -#define DRV_VERSION "EHEA_0103" +#define DRV_VERSION "EHEA_0105" /* eHEA capability flags */ #define DLPAR_PORT_ADD_REM 1 diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c index fd890fa..8b92acb 100644 --- a/drivers/net/ehea/ehea_main.c +++ b/drivers/net/ehea/ehea_main.c @@ -2860,6 +2860,7 @@ static void ehea_reset_port(struct work_struct *work) container_of(work, struct ehea_port, reset_task); struct net_device *dev = port->netdev; + mutex_lock(&dlpar_mem_lock); port->resets++; mutex_lock(&port->port_lock); netif_stop_queue(dev); @@ -2882,6 +2883,7 @@ static void ehea_reset_port(struct work_struct *work) netif_wake_queue(dev); out: mutex_unlock(&port->port_lock); + mutex_unlock(&dlpar_mem_lock); } static void ehea_rereg_mrs(struct work_struct *work) @@ -3543,10 +3545,7 @@ static int ehea_mem_notifier(struct notifier_block *nb, int ret = NOTIFY_BAD; struct memory_notify *arg = data; - if (!mutex_trylock(&dlpar_mem_lock)) { - ehea_info("ehea_mem_notifier must not be called parallelized"); - goto out; - } + mutex_lock(&dlpar_mem_lock); switch (action) { case MEM_CANCEL_OFFLINE: @@ -3575,7 +3574,6 @@ static int ehea_mem_notifier(struct notifier_block *nb, out_unlock: mutex_unlock(&dlpar_mem_lock); -out: return ret; } -- cgit v1.1 From 63b88b9041ceef8217f34de71a2e96f0c3f0fd3b Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Fri, 11 Jun 2010 10:51:03 +0000 Subject: gianfar: Fix oversized packets handling Issuing the following command on host: $ ifconfig eth2 mtu 1600 ; ping 10.0.0.27 -s 1485 -c 1 Makes some boards (tested with MPC8315 rev 1.1 and MPC8313 rev 1.0) oops like this: skb_over_panic: text:c0195914 len:1537 put:1537 head:c79e4800 data:c79e4880 tail:0xc79e4e81 end:0xc79e4e80 dev:eth1 ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:127! Oops: Exception in kernel mode, sig: 5 [#1] MPC831x RDB last sysfs file: /sys/kernel/uevent_seqnum Modules linked in: NIP: c01c1840 LR: c01c1840 CTR: c016d918 [...] NIP [c01c1840] skb_over_panic+0x48/0x5c LR [c01c1840] skb_over_panic+0x48/0x5c Call Trace: [c0339d50] [c01c1840] skb_over_panic+0x48/0x5c (unreliable) [c0339d60] [c01c3020] skb_put+0x5c/0x60 [c0339d70] [c0195914] gfar_clean_rx_ring+0x25c/0x3d0 [c0339dc0] [c01976e8] gfar_poll+0x170/0x1bc Dumped buffer descriptors showed that eTSEC's length/truncation logic sometimes passes oversized packets, i.e. for the above ICMP packet the following two buffer descriptors may become ready: status=1400 length=1536 status=1800 length=1541 So, it seems that gianfar actually receives the whole big frame, and it tries to place the packet into two BDs. This situation confuses the driver, and so the skb_put() sanity check fails. This patch fixes the issue by adding an appropriate check, i.e. the driver should not try to process frames with buffer descriptor's length over rx_buffer_size (i.e. maxfrm and mrblr). Note that sometimes eTSEC works correctly, i.e. in the second (last) buffer descriptor bits 'truncated' and 'crcerr' are set, and so there's no oops. Though I couldn't find any logic when it works correctly and when not. Signed-off-by: Anton Vorontsov Signed-off-by: David S. Miller --- drivers/net/gianfar.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 227b628..28b53d1 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -2655,6 +2655,10 @@ int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit) dma_unmap_single(&priv->ofdev->dev, bdp->bufPtr, priv->rx_buffer_size, DMA_FROM_DEVICE); + if (unlikely(!(bdp->status & RXBD_ERR) && + bdp->length > priv->rx_buffer_size)) + bdp->status = RXBD_LARGE; + /* We drop the frame if we failed to allocate a new buffer */ if (unlikely(!newskb || !(bdp->status & RXBD_LAST) || bdp->status & RXBD_ERR)) { -- cgit v1.1 From 8b1d920fa5ea8e3d941e908fa57acc9b1df9ca92 Mon Sep 17 00:00:00 2001 From: Ken Kawasaki Date: Sat, 12 Jun 2010 00:17:28 +0000 Subject: pcnet_cs: add new id (TOSHIBA Modem/LAN Card) pcnet_cs: serial_cs: add new id (TOSHIBA Modem/LAN Card) Signed-off-by: Ken Kawasaki Signed-off-by: David S. Miller --- drivers/net/pcmcia/pcnet_cs.c | 1 + drivers/serial/serial_cs.c | 1 + 2 files changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/net/pcmcia/pcnet_cs.c b/drivers/net/pcmcia/pcnet_cs.c index 6f77a76..bfdef72 100644 --- a/drivers/net/pcmcia/pcnet_cs.c +++ b/drivers/net/pcmcia/pcnet_cs.c @@ -1727,6 +1727,7 @@ static struct pcmcia_device_id pcnet_ids[] = { PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "Psion Dacom", "Gold Card V34 Ethernet", 0xf5f025c2, 0x338e8155, "cis/PCMLM28.cis"), PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "Psion Dacom", "Gold Card V34 Ethernet GSM", 0xf5f025c2, 0x4ae85d35, "cis/PCMLM28.cis"), PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "LINKSYS", "PCMLM28", 0xf7cb0b07, 0x66881874, "cis/PCMLM28.cis"), + PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "TOSHIBA", "Modem/LAN Card", 0xb4585a1a, 0x53f922f8, "cis/PCMLM28.cis"), PCMCIA_MFC_DEVICE_CIS_PROD_ID12(0, "DAYNA COMMUNICATIONS", "LAN AND MODEM MULTIFUNCTION", 0x8fdf8f89, 0xdd5ed9e8, "cis/DP83903.cis"), PCMCIA_MFC_DEVICE_CIS_PROD_ID4(0, "NSC MF LAN/Modem", 0x58fc6056, "cis/DP83903.cis"), PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0175, 0x0000, "cis/DP83903.cis"), diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c index dadd686..8bb715a 100644 --- a/drivers/serial/serial_cs.c +++ b/drivers/serial/serial_cs.c @@ -807,6 +807,7 @@ static struct pcmcia_device_id serial_ids[] = { PCMCIA_PFC_DEVICE_CIS_PROD_ID12(1, "Psion Dacom", "Gold Card V34 Ethernet", 0xf5f025c2, 0x338e8155, "cis/PCMLM28.cis"), PCMCIA_PFC_DEVICE_CIS_PROD_ID12(1, "Psion Dacom", "Gold Card V34 Ethernet GSM", 0xf5f025c2, 0x4ae85d35, "cis/PCMLM28.cis"), PCMCIA_PFC_DEVICE_CIS_PROD_ID12(1, "LINKSYS", "PCMLM28", 0xf7cb0b07, 0x66881874, "cis/PCMLM28.cis"), + PCMCIA_PFC_DEVICE_CIS_PROD_ID12(1, "TOSHIBA", "Modem/LAN Card", 0xb4585a1a, 0x53f922f8, "cis/PCMLM28.cis"), PCMCIA_MFC_DEVICE_CIS_PROD_ID12(1, "DAYNA COMMUNICATIONS", "LAN AND MODEM MULTIFUNCTION", 0x8fdf8f89, 0xdd5ed9e8, "cis/DP83903.cis"), PCMCIA_MFC_DEVICE_CIS_PROD_ID4(1, "NSC MF LAN/Modem", 0x58fc6056, "cis/DP83903.cis"), PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0101, 0x0556, "cis/3CCFEM556.cis"), -- cgit v1.1 From db176edc89abbf22e6db6853f8581f9475fe8ec1 Mon Sep 17 00:00:00 2001 From: Sergey Matyukevich Date: Mon, 14 Jun 2010 06:35:20 +0000 Subject: ucc_geth: fix for RX skb buffers recycling This patch implements a proper modification of RX skb buffers before recycling. Adjusting only skb->data is not enough because after that skb->tail and skb->len become incorrect. Signed-off-by: Sergey Matyukevich Signed-off-by: David S. Miller --- drivers/net/ucc_geth.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c index 4a34833..807470e 100644 --- a/drivers/net/ucc_geth.c +++ b/drivers/net/ucc_geth.c @@ -3215,6 +3215,8 @@ static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit __func__, __LINE__, (u32) skb); if (skb) { skb->data = skb->head + NET_SKB_PAD; + skb->len = 0; + skb_reset_tail_pointer(skb); __skb_queue_head(&ugeth->rx_recycle, skb); } -- cgit v1.1 From f1f5bda4e9726456bd132e738bf60b727856477e Mon Sep 17 00:00:00 2001 From: Hans-Christian Egtvedt Date: Tue, 8 Jun 2010 08:44:32 +0200 Subject: watchdog: at32ap700x_wdt: register misc device last in probe() function This patch reworks the probe() function in the at32ap700x_wdt driver, this to make sure the miscdev is properly initialized and the driver is ready to be accessed. Reported-by: Akinobu Mita Signed-off-by: Hans-Christian Egtvedt Signed-off-by: Wim Van sebroeck --- drivers/watchdog/at32ap700x_wdt.c | 16 ++++++++++------ 1 file changed, 10 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/watchdog/at32ap700x_wdt.c b/drivers/watchdog/at32ap700x_wdt.c index 1cddf92..750bc52 100644 --- a/drivers/watchdog/at32ap700x_wdt.c +++ b/drivers/watchdog/at32ap700x_wdt.c @@ -346,9 +346,13 @@ static int __init at32_wdt_probe(struct platform_device *pdev) } else { wdt->users = 0; } - wdt->miscdev.minor = WATCHDOG_MINOR; - wdt->miscdev.name = "watchdog"; - wdt->miscdev.fops = &at32_wdt_fops; + + wdt->miscdev.minor = WATCHDOG_MINOR; + wdt->miscdev.name = "watchdog"; + wdt->miscdev.fops = &at32_wdt_fops; + wdt->miscdev.parent = &pdev->dev; + + platform_set_drvdata(pdev, wdt); if (at32_wdt_settimeout(timeout)) { at32_wdt_settimeout(TIMEOUT_DEFAULT); @@ -360,17 +364,17 @@ static int __init at32_wdt_probe(struct platform_device *pdev) ret = misc_register(&wdt->miscdev); if (ret) { dev_dbg(&pdev->dev, "failed to register wdt miscdev\n"); - goto err_iounmap; + goto err_register; } - platform_set_drvdata(pdev, wdt); - wdt->miscdev.parent = &pdev->dev; dev_info(&pdev->dev, "AT32AP700X WDT at 0x%p, timeout %d sec (nowayout=%d)\n", wdt->regs, wdt->timeout, nowayout); return 0; +err_register: + platform_set_drvdata(pdev, NULL); err_iounmap: iounmap(wdt->regs); err_free: -- cgit v1.1 From aabef8b240880439b91574c9a9e33dcc44bfd8c7 Mon Sep 17 00:00:00 2001 From: FUJITA Tomonori Date: Thu, 17 Jun 2010 08:56:05 -0700 Subject: bnx2: fix dma_get_ops compilation breakage This removes dma_get_ops() prefetch optimization in bnx2. bnx2 uses dma_get_ops() to see if dma_sync_single_for_cpu() is noop. bnx2 does prefetch if it's noop. But dma_get_ops() isn't available on all the architectures (only the architectures that uses dma_map_ops struct have it). Using dma_get_ops() in drivers leads to compilation breakage on many architectures. This patch removes dma_get_ops() and changes bnx2 to do prefetch on all the architectures. This adds useless prefetch on non-coherent architectures but this is harmless. It is also unlikely to cause the performance drop. [ Remove now unused local variable 'pdev' -DaveM ] Signed-off-by: FUJITA Tomonori Acked-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/bnx2.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c index 949d7a9..1174322 100644 --- a/drivers/net/bnx2.c +++ b/drivers/net/bnx2.c @@ -3073,7 +3073,6 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget) u16 hw_cons, sw_cons, sw_ring_cons, sw_prod, sw_ring_prod; struct l2_fhdr *rx_hdr; int rx_pkt = 0, pg_ring_used = 0; - struct pci_dev *pdev = bp->pdev; hw_cons = bnx2_get_hw_rx_cons(bnapi); sw_cons = rxr->rx_cons; @@ -3099,12 +3098,10 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget) skb = rx_buf->skb; prefetchw(skb); - if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) { - next_rx_buf = - &rxr->rx_buf_ring[ - RX_RING_IDX(NEXT_RX_BD(sw_cons))]; - prefetch(next_rx_buf->desc); - } + next_rx_buf = + &rxr->rx_buf_ring[RX_RING_IDX(NEXT_RX_BD(sw_cons))]; + prefetch(next_rx_buf->desc); + rx_buf->skb = NULL; dma_addr = dma_unmap_addr(rx_buf, mapping); -- cgit v1.1 From cb1cb1780f2025a7d612de09131bf6530f80fb1a Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 17 Jun 2010 17:40:57 +0200 Subject: ACPI / PM: Do not enable GPEs for system wakeup in advance After commit 9630bdd9b15d2f489c646d8bc04b60e53eb5ec78 (ACPI: Use GPE reference counting to support shared GPEs) the wakeup enable mask bits of GPEs are set as soon as the GPEs are enabled to wake up the system. Unfortunately, this leads to a regression reported by Michal Hocko, where a system is woken up from ACPI S5 by a device that is not supposed to do that, because the wakeup enable mask bit of this device's GPE is always set when acpi_enter_sleep_state() calls acpi_hw_enable_all_wakeup_gpes(), although it should only be set if the device is supposed to wake up the system from the target state. To work around this issue, rework the ACPI power management code so that GPEs are not enabled to wake up the system upfront, but only during a system state transition when the target state of the system is known. [Of course, this means that the reference counting of "wakeup" GPEs doesn't really make sense and it is sufficient to set/unset the wakeup mask bits for them during system sleep transitions. This will allow us to simplify the GPE handling code quite a bit, but that change is too intrusive for 2.6.35.] Fixes https://bugzilla.kernel.org/show_bug.cgi?id=15951 Signed-off-by: Rafael J. Wysocki Reported-and-tested-by: Michal Hocko Signed-off-by: Len Brown --- drivers/acpi/button.c | 4 ++-- drivers/acpi/wakeup.c | 20 +++++++------------- 2 files changed, 9 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index fd51c4a..7d857da 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -425,7 +425,7 @@ static int acpi_button_add(struct acpi_device *device) /* Button's GPE is run-wake GPE */ acpi_enable_gpe(device->wakeup.gpe_device, device->wakeup.gpe_number, - ACPI_GPE_TYPE_WAKE_RUN); + ACPI_GPE_TYPE_RUNTIME); device->wakeup.run_wake_count++; device->wakeup.state.enabled = 1; } @@ -449,7 +449,7 @@ static int acpi_button_remove(struct acpi_device *device, int type) if (device->wakeup.flags.valid) { acpi_disable_gpe(device->wakeup.gpe_device, device->wakeup.gpe_number, - ACPI_GPE_TYPE_WAKE_RUN); + ACPI_GPE_TYPE_RUNTIME); device->wakeup.run_wake_count--; device->wakeup.state.enabled = 0; } diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c index 4b9d339..388747a 100644 --- a/drivers/acpi/wakeup.c +++ b/drivers/acpi/wakeup.c @@ -64,16 +64,13 @@ void acpi_enable_wakeup_device(u8 sleep_state) struct acpi_device *dev = container_of(node, struct acpi_device, wakeup_list); - if (!dev->wakeup.flags.valid) - continue; - - if ((!dev->wakeup.state.enabled && !dev->wakeup.prepare_count) + if (!dev->wakeup.flags.valid || !dev->wakeup.state.enabled || sleep_state > (u32) dev->wakeup.sleep_state) continue; /* The wake-up power should have been enabled already. */ - acpi_set_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number, - ACPI_GPE_ENABLE); + acpi_enable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number, + ACPI_GPE_TYPE_WAKE); } } @@ -96,6 +93,8 @@ void acpi_disable_wakeup_device(u8 sleep_state) || (sleep_state > (u32) dev->wakeup.sleep_state)) continue; + acpi_disable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number, + ACPI_GPE_TYPE_WAKE); acpi_disable_wakeup_device_power(dev); } } @@ -109,13 +108,8 @@ int __init acpi_wakeup_device_init(void) struct acpi_device *dev = container_of(node, struct acpi_device, wakeup_list); - /* In case user doesn't load button driver */ - if (!dev->wakeup.flags.always_enabled || - dev->wakeup.state.enabled) - continue; - acpi_enable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number, - ACPI_GPE_TYPE_WAKE); - dev->wakeup.state.enabled = 1; + if (dev->wakeup.flags.always_enabled) + dev->wakeup.state.enabled = 1; } mutex_unlock(&acpi_device_lock); return 0; -- cgit v1.1 From b27759f880018b0cd43543dc94c921341b64b5ec Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 18 Jun 2010 17:04:22 +0200 Subject: PCI/PM: Do not use native PCIe PME by default MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit c7f486567c1d0acd2e4166c47069835b9f75e77b (PCI PM: PCIe PME root port service driver) causes the native PCIe PME signaling to be used by default, if the BIOS allows the kernel to control the standard configuration registers of PCIe root ports. However, the native PCIe PME is coupled to the native PCIe hotplug and calling pcie_pme_acpi_setup() makes some BIOSes expect that the native PCIe hotplug will be used as well. That, in turn, causes problems to appear on systems where the PCIe hotplug driver is not loaded. The usual symptom, as reported by Jaroslav Kameník and others, is that the ACPI GPE associated with PCIe hotplug keeps firing continuously causing kacpid to take substantial percentage of CPU time. To work around this issue, change the default so that the native PCIe PME signaling is only used if directly requested with the help of the pcie_pme= command line switch. Fixes https://bugzilla.kernel.org/show_bug.cgi?id=15924 , which is a listed regression from 2.6.33. Signed-off-by: Rafael J. Wysocki Reported-by: Jaroslav Kameník Tested-by: Antoni Grzymala Signed-off-by: Jesse Barnes --- drivers/pci/pcie/pme/pcie_pme.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/pci/pcie/pme/pcie_pme.c b/drivers/pci/pcie/pme/pcie_pme.c index aac285a..d672a0a 100644 --- a/drivers/pci/pcie/pme/pcie_pme.c +++ b/drivers/pci/pcie/pme/pcie_pme.c @@ -34,7 +34,7 @@ * being registered. Consequently, the interrupt-based PCIe PME signaling will * not be used by any PCIe root ports in that case. */ -static bool pcie_pme_disabled; +static bool pcie_pme_disabled = true; /* * The PCI Express Base Specification 2.0, Section 6.1.8, states the following: @@ -64,12 +64,19 @@ bool pcie_pme_msi_disabled; static int __init pcie_pme_setup(char *str) { - if (!strcmp(str, "off")) - pcie_pme_disabled = true; - else if (!strcmp(str, "force")) + if (!strncmp(str, "auto", 4)) + pcie_pme_disabled = false; + else if (!strncmp(str, "force", 5)) pcie_pme_force_enable = true; - else if (!strcmp(str, "nomsi")) - pcie_pme_msi_disabled = true; + + str = strchr(str, ','); + if (str) { + str++; + str += strspn(str, " \t"); + if (*str && !strcmp(str, "nomsi")) + pcie_pme_msi_disabled = true; + } + return 1; } __setup("pcie_pme=", pcie_pme_setup); -- cgit v1.1 From b6855772f4a22c4fbdd4fcaceff5c8a527035123 Mon Sep 17 00:00:00 2001 From: Bob Copeland Date: Fri, 18 Jun 2010 13:15:23 -0400 Subject: ath5k: initialize ah->ah_current_channel ath5k assumes ah_current_channel is always a valid pointer in several places, but a newly created interface may not have a channel. To avoid null pointer dereferences, set it up to point to the first available channel until later reconfigured. This fixes the following oops: $ rmmod ath5k $ insmod ath5k $ iw phy0 set distance 11000 BUG: unable to handle kernel NULL pointer dereference at 00000006 IP: [] ath5k_hw_set_coverage_class+0x74/0x1b0 [ath5k] *pde = 00000000 Oops: 0000 [#1] last sysfs file: /sys/devices/pci0000:00/0000:00:0e.0/ieee80211/phy0/index Modules linked in: usbhid option usb_storage usbserial usblp evdev lm90 scx200_acb i2c_algo_bit i2c_dev i2c_core via_rhine ohci_hcd ne2k_pci 8390 leds_alix2 xt_IMQ imq nf_nat_tftp nf_conntrack_tftp nf_nat_irc nf_cc Pid: 1597, comm: iw Not tainted (2.6.32.14 #8) EIP: 0060:[] EFLAGS: 00010296 CPU: 0 EIP is at ath5k_hw_set_coverage_class+0x74/0x1b0 [ath5k] EAX: 000000c2 EBX: 00000000 ECX: ffffffff EDX: c12d2080 ESI: 00000019 EDI: cf8c0000 EBP: d0a30edc ESP: cfa09bf4 DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 Process iw (pid: 1597, ti=cfa09000 task=cf88a000 task.ti=cfa09000) Stack: d0a34f35 d0a353f8 d0a30edc 000000fe cf8c0000 00000000 1900063d cfa8c9e0 <0> cfa8c9e8 cfa8c0c0 cfa8c000 d0a27f0c 199d84b4 cfa8c200 00000010 d09bfdc7 <0> 00000000 00000000 ffffffff d08e0d28 cf9263c0 00000001 cfa09cc4 00000000 Call Trace: [] ? ath5k_hw_attach+0xc8c/0x3c10 [ath5k] [] ? __ieee80211_request_smps+0x1347/0x1580 [mac80211] [] ? nl80211_send_scan_start+0x7b8/0x4520 [cfg80211] [] ? nla_parse+0x59/0xc0 [] ? genl_rcv_msg+0x169/0x1a0 [] ? genl_rcv_msg+0x0/0x1a0 [] ? netlink_rcv_skb+0x38/0x90 [] ? genl_rcv+0x19/0x30 [] ? netlink_unicast+0x1b3/0x220 [] ? netlink_sendmsg+0x26e/0x290 [] ? sock_sendmsg+0xbe/0xf0 [] ? autoremove_wake_function+0x0/0x50 [] ? __alloc_pages_nodemask+0x106/0x530 [] ? do_lookup+0x53/0x1b0 [] ? __link_path_walk+0x9b9/0x9e0 [] ? verify_iovec+0x50/0x90 [] ? sys_sendmsg+0x1e1/0x270 [] ? find_get_page+0x10/0x50 [] ? filemap_fault+0x5f/0x370 [] ? __do_fault+0x319/0x370 [] ? sys_socketcall+0x244/0x290 [] ? do_page_fault+0x1ec/0x270 [] ? do_page_fault+0x0/0x270 [] ? syscall_call+0x7/0xb Code: 00 b8 fe 00 00 00 b9 f8 53 a3 d0 89 5c 24 14 89 7c 24 10 89 44 24 0c 89 6c 24 08 89 4c 24 04 c7 04 24 35 4f a3 d0 e8 7c 30 60 f0 <0f> b7 43 06 ba 06 00 00 00 a8 10 75 0e 83 e0 20 83 f8 01 19 d2 EIP: [] ath5k_hw_set_coverage_class+0x74/0x1b0 [ath5k] SS:ESP 0068:cfa09bf4 CR2: 0000000000000006 ---[ end trace 54f73d6b10ceb87b ]--- Cc: stable@kernel.org Reported-by: Steve Brown Signed-off-by: Bob Copeland Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath5k/attach.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/wireless/ath/ath5k/attach.c b/drivers/net/wireless/ath/ath5k/attach.c index e0c244b..31c0080 100644 --- a/drivers/net/wireless/ath/ath5k/attach.c +++ b/drivers/net/wireless/ath/ath5k/attach.c @@ -126,6 +126,7 @@ int ath5k_hw_attach(struct ath5k_softc *sc) ah->ah_ant_mode = AR5K_ANTMODE_DEFAULT; ah->ah_noise_floor = -95; /* until first NF calibration is run */ sc->ani_state.ani_mode = ATH5K_ANI_MODE_AUTO; + ah->ah_current_channel = &sc->channels[0]; /* * Find the mac version -- cgit v1.1 From 83f7fd055eb3f1e843803cd906179d309553967b Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Mon, 5 Apr 2010 14:03:51 -0700 Subject: drm/i915: don't queue flips during a flip pending event Hardware will set the flip pending ISR bit as soon as it receives the flip instruction, and (supposedly) clear it once the flip completes (e.g. at the next vblank). If we try to send down a flip instruction while the ISR bit is set, the hardware can become very confused, and we may never receive the corresponding flip pending interrupt, effectively hanging the chip. Signed-off-by: Jesse Barnes Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_display.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index fdeff43..dc65a1d 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4680,6 +4680,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, unsigned long flags; int pipesrc_reg = (intel_crtc->pipe == 0) ? PIPEASRC : PIPEBSRC; int ret, pipesrc; + u32 flip_mask; work = kzalloc(sizeof *work, GFP_KERNEL); if (work == NULL) @@ -4733,6 +4734,16 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, atomic_inc(&obj_priv->pending_flip); work->pending_flip_obj = obj; + if (intel_crtc->plane) + flip_mask = I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT; + else + flip_mask = I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT; + + /* Wait for any previous flip to finish */ + if (IS_GEN3(dev)) + while (I915_READ(ISR) & flip_mask) + ; + BEGIN_LP_RING(4); OUT_RING(MI_DISPLAY_FLIP | MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); -- cgit v1.1 From 1afe3e9d4335bf3bc5615e37243dc8fef65dac8f Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Fri, 26 Mar 2010 10:35:20 -0700 Subject: drm/i915: gen3 page flipping fixes Gen3 chips have slightly different flip commands, and also contain a bit that indicates whether a "flip pending" interrupt means the flip has been queued or has been completed. So implement support for the gen3 flip command, and make sure we use the flip pending interrupt correctly depending on the value of ECOSKPD bit 0. Signed-off-by: Jesse Barnes Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_dma.c | 4 ++++ drivers/gpu/drm/i915/i915_drv.h | 1 + drivers/gpu/drm/i915/i915_irq.c | 16 ++++++++++++---- drivers/gpu/drm/i915/i915_reg.h | 4 ++++ drivers/gpu/drm/i915/intel_display.c | 29 ++++++++++++++++++++++++----- drivers/gpu/drm/i915/intel_drv.h | 1 + 6 files changed, 46 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 84ce956..4d59710 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1408,6 +1408,10 @@ static int i915_load_modeset_init(struct drm_device *dev, if (ret) goto destroy_ringbuffer; + /* IIR "flip pending" bit means done if this bit is set */ + if (IS_GEN3(dev) && (I915_READ(ECOSKPD) & ECO_FLIP_DONE)) + dev_priv->flip_pending_is_done = true; + intel_modeset_init(dev); ret = drm_irq_install(dev); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index f3f681f..21e217d 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -595,6 +595,7 @@ typedef struct drm_i915_private { struct drm_crtc *plane_to_crtc_mapping[2]; struct drm_crtc *pipe_to_crtc_mapping[2]; wait_queue_head_t pending_flip_queue; + bool flip_pending_is_done; /* Reclocking support */ bool render_reclock_avail; diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index e9710a7..70e1e4b 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -940,22 +940,30 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) if (HAS_BSD(dev) && (iir & I915_BSD_USER_INTERRUPT)) DRM_WAKEUP(&dev_priv->bsd_ring.irq_queue); - if (iir & I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT) + if (iir & I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT) { intel_prepare_page_flip(dev, 0); + if (dev_priv->flip_pending_is_done) + intel_finish_page_flip_plane(dev, 0); + } - if (iir & I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT) + if (iir & I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT) { + if (dev_priv->flip_pending_is_done) + intel_finish_page_flip_plane(dev, 1); intel_prepare_page_flip(dev, 1); + } if (pipea_stats & vblank_status) { vblank++; drm_handle_vblank(dev, 0); - intel_finish_page_flip(dev, 0); + if (!dev_priv->flip_pending_is_done) + intel_finish_page_flip(dev, 0); } if (pipeb_stats & vblank_status) { vblank++; drm_handle_vblank(dev, 1); - intel_finish_page_flip(dev, 1); + if (!dev_priv->flip_pending_is_done) + intel_finish_page_flip(dev, 1); } if ((pipea_stats & I915_LEGACY_BLC_EVENT_STATUS) || diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 64b0a3a..2cae38a 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -178,6 +178,7 @@ #define MI_OVERLAY_OFF (0x2<<21) #define MI_LOAD_SCAN_LINES_INCL MI_INSTR(0x12, 0) #define MI_DISPLAY_FLIP MI_INSTR(0x14, 2) +#define MI_DISPLAY_FLIP_I915 MI_INSTR(0x14, 1) #define MI_DISPLAY_FLIP_PLANE(n) ((n) << 20) #define MI_STORE_DWORD_IMM MI_INSTR(0x20, 1) #define MI_MEM_VIRTUAL (1 << 22) /* 965+ only */ @@ -368,6 +369,9 @@ #define CM0_RC_OP_FLUSH_DISABLE (1<<0) #define BB_ADDR 0x02140 /* 8 bytes */ #define GFX_FLSH_CNTL 0x02170 /* 915+ only */ +#define ECOSKPD 0x021d0 +#define ECO_GATING_CX_ONLY (1<<3) +#define ECO_FLIP_DONE (1<<0) /* GEN6 interrupt control */ #define GEN6_RENDER_HWSTAM 0x2098 diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index dc65a1d..6db778a 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -4603,10 +4603,10 @@ static void intel_unpin_work_fn(struct work_struct *__work) kfree(work); } -void intel_finish_page_flip(struct drm_device *dev, int pipe) +static void do_intel_finish_page_flip(struct drm_device *dev, + struct drm_crtc *crtc) { drm_i915_private_t *dev_priv = dev->dev_private; - struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); struct intel_unpin_work *work; struct drm_i915_gem_object *obj_priv; @@ -4650,6 +4650,22 @@ void intel_finish_page_flip(struct drm_device *dev, int pipe) schedule_work(&work->work); } +void intel_finish_page_flip(struct drm_device *dev, int pipe) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; + + do_intel_finish_page_flip(dev, crtc); +} + +void intel_finish_page_flip_plane(struct drm_device *dev, int plane) +{ + drm_i915_private_t *dev_priv = dev->dev_private; + struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane]; + + do_intel_finish_page_flip(dev, crtc); +} + void intel_prepare_page_flip(struct drm_device *dev, int plane) { drm_i915_private_t *dev_priv = dev->dev_private; @@ -4745,14 +4761,17 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, ; BEGIN_LP_RING(4); - OUT_RING(MI_DISPLAY_FLIP | - MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); - OUT_RING(fb->pitch); if (IS_I965G(dev)) { + OUT_RING(MI_DISPLAY_FLIP | + MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); + OUT_RING(fb->pitch); OUT_RING(obj_priv->gtt_offset | obj_priv->tiling_mode); pipesrc = I915_READ(pipesrc_reg); OUT_RING(pipesrc & 0x0fff0fff); } else { + OUT_RING(MI_DISPLAY_FLIP_I915 | + MI_DISPLAY_FLIP_PLANE(intel_crtc->plane)); + OUT_RING(fb->pitch); OUT_RING(obj_priv->gtt_offset); OUT_RING(MI_NOOP); } diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index df931f7..72206f3 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -224,6 +224,7 @@ extern void intel_fbdev_fini(struct drm_device *dev); extern void intel_prepare_page_flip(struct drm_device *dev, int plane); extern void intel_finish_page_flip(struct drm_device *dev, int pipe); +extern void intel_finish_page_flip_plane(struct drm_device *dev, int plane); extern void intel_setup_overlay(struct drm_device *dev); extern void intel_cleanup_overlay(struct drm_device *dev); -- cgit v1.1 From eefc2d9e3d4f8820f2c128a0e44a23de28b1ed64 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 20 Jun 2010 09:22:31 +0200 Subject: hwmon: (k10temp) Do not blacklist known working CPU models When detecting AM2+ or AM3 socket with DDR2, only blacklist cores which are known to exist in AM2+ format. Signed-off-by: Jean Delvare Acked-by: Clemens Ladisch Cc: Andreas Herrmann Cc: stable@kernel.org --- drivers/hwmon/k10temp.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c index 099a213..da5a240 100644 --- a/drivers/hwmon/k10temp.c +++ b/drivers/hwmon/k10temp.c @@ -112,11 +112,21 @@ static bool __devinit has_erratum_319(struct pci_dev *pdev) if (pkg_type != CPUID_PKGTYPE_AM2R2_AM3) return false; - /* Differentiate between AM2+ (bad) and AM3 (good) */ + /* DDR3 memory implies socket AM3, which is good */ pci_bus_read_config_dword(pdev->bus, PCI_DEVFN(PCI_SLOT(pdev->devfn), 2), REG_DCT0_CONFIG_HIGH, ®_dram_cfg); - return !(reg_dram_cfg & DDR3_MODE); + if (reg_dram_cfg & DDR3_MODE) + return false; + + /* + * Unfortunately it is possible to run a socket AM3 CPU with DDR2 + * memory. We blacklist all the cores which do exist in socket AM2+ + * format. It still isn't perfect, as RB-C2 cores exist in both AM2+ + * and AM3 formats, but that's the best we can do. + */ + return boot_cpu_data.x86_model < 4 || + (boot_cpu_data.x86_model == 4 && boot_cpu_data.x86_mask <= 2); } static int __devinit k10temp_probe(struct pci_dev *pdev, -- cgit v1.1 From 0e6c7870856c7fb4ee054d28ac253b2d3d0c7e36 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Sun, 20 Jun 2010 09:22:31 +0200 Subject: hwmon: (i5k_amb) Fix sysfs attribute for lockdep i5k_amb.ko uses dynamically allocated memory (by kmalloc) for attributes passed to sysfs. So, sysfs_attr_init() should be called for working happy with lockdep. Signed-off-by: KAMEZAWA Hiroyuki Signed-off-by: Jean Delvare Cc: stable@kernel.org [2.6.34 only] --- drivers/hwmon/i5k_amb.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/hwmon/i5k_amb.c b/drivers/hwmon/i5k_amb.c index e880e2c..9379834 100644 --- a/drivers/hwmon/i5k_amb.c +++ b/drivers/hwmon/i5k_amb.c @@ -289,6 +289,7 @@ static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev) iattr->s_attr.dev_attr.attr.mode = S_IRUGO; iattr->s_attr.dev_attr.show = show_label; iattr->s_attr.index = k; + sysfs_attr_init(&iattr->s_attr.dev_attr.attr); res = device_create_file(&pdev->dev, &iattr->s_attr.dev_attr); if (res) @@ -303,6 +304,7 @@ static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev) iattr->s_attr.dev_attr.attr.mode = S_IRUGO; iattr->s_attr.dev_attr.show = show_amb_temp; iattr->s_attr.index = k; + sysfs_attr_init(&iattr->s_attr.dev_attr.attr); res = device_create_file(&pdev->dev, &iattr->s_attr.dev_attr); if (res) @@ -318,6 +320,7 @@ static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev) iattr->s_attr.dev_attr.show = show_amb_min; iattr->s_attr.dev_attr.store = store_amb_min; iattr->s_attr.index = k; + sysfs_attr_init(&iattr->s_attr.dev_attr.attr); res = device_create_file(&pdev->dev, &iattr->s_attr.dev_attr); if (res) @@ -333,6 +336,7 @@ static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev) iattr->s_attr.dev_attr.show = show_amb_mid; iattr->s_attr.dev_attr.store = store_amb_mid; iattr->s_attr.index = k; + sysfs_attr_init(&iattr->s_attr.dev_attr.attr); res = device_create_file(&pdev->dev, &iattr->s_attr.dev_attr); if (res) @@ -348,6 +352,7 @@ static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev) iattr->s_attr.dev_attr.show = show_amb_max; iattr->s_attr.dev_attr.store = store_amb_max; iattr->s_attr.index = k; + sysfs_attr_init(&iattr->s_attr.dev_attr.attr); res = device_create_file(&pdev->dev, &iattr->s_attr.dev_attr); if (res) @@ -362,6 +367,7 @@ static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev) iattr->s_attr.dev_attr.attr.mode = S_IRUGO; iattr->s_attr.dev_attr.show = show_amb_alarm; iattr->s_attr.index = k; + sysfs_attr_init(&iattr->s_attr.dev_attr.attr); res = device_create_file(&pdev->dev, &iattr->s_attr.dev_attr); if (res) -- cgit v1.1 From cd4de21f7e65a8cd04860f5661b3c18648ee52a1 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 20 Jun 2010 09:22:32 +0200 Subject: hwmon: (k8temp) Bypass core swapping on single-core processors Commit a2e066bba2aad6583e3ff648bf28339d6c9f0898 introduced core swapping for CPU models 64 and later. I recently had a report about a Sempron 3200+, model 95, for which this patch broke temperature reading. It happens that this is a single-core processor, so the effect of the swapping was to read a temperature value for a core that didn't exist, leading to an incorrect value (-49 degrees C.) Disabling core swapping on singe-core processors should fix this. Additional comment from Andreas: The BKDG says Thermal Sensor Core Select (ThermSenseCoreSel)-Bit 2. This bit selects the CPU whose temperature is reported in the CurTemp field. This bit only applies to dual core processors. For single core processors CPU0 Thermal Sensor is always selected. k8temp_probe() correctly detected that SEL_CORE can't be used on single core CPU. Thus k8temp did never update the temperature values stored in temp[1][x] and -49 degrees was reported. For single core CPUs we must use the values read into temp[0][x]. Signed-off-by: Jean Delvare Tested-by: Rick Moritz Acked-by: Andreas Herrmann Cc: stable@kernel.org --- drivers/hwmon/k8temp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c index 0ceb6d6..f26acdb 100644 --- a/drivers/hwmon/k8temp.c +++ b/drivers/hwmon/k8temp.c @@ -120,7 +120,7 @@ static ssize_t show_temp(struct device *dev, int temp; struct k8temp_data *data = k8temp_update_device(dev); - if (data->swap_core_select) + if (data->swap_core_select && (data->sensorsp & SEL_CORE)) core = core ? 0 : 1; temp = TEMP_FROM_REG(data->temp[core][place]) + data->temp_offset; -- cgit v1.1 From ade2d3db21b0625f9528bcd6f1656dd7c8d0fe08 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 21 Jun 2010 03:44:50 +0000 Subject: NET: MIPSsim: Fix modpost warning. $ make CONFIG_DEBUG_SECTION_MISMATCH=y [...] WARNING: drivers/net/built-in.o(.data+0x0): Section mismatch in reference from the variable mipsnet_driver to the function .init.text:mipsnet_probe() The variable mipsnet_driver references the function __init mipsnet_probe() If the reference is valid then annotate the variable with __init* or __refdata (see linux/init.h) or name the variable: *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console, [...] Fixed by making mipsnet_probe __devinit. Signed-off-by: Ralf Baechle drivers/net/mipsnet.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) Signed-off-by: David S. Miller --- drivers/net/mipsnet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/mipsnet.c b/drivers/net/mipsnet.c index 8e9704f..869f0ea 100644 --- a/drivers/net/mipsnet.c +++ b/drivers/net/mipsnet.c @@ -247,7 +247,7 @@ static const struct net_device_ops mipsnet_netdev_ops = { .ndo_set_mac_address = eth_mac_addr, }; -static int __init mipsnet_probe(struct platform_device *dev) +static int __devinit mipsnet_probe(struct platform_device *dev) { struct net_device *netdev; int err; -- cgit v1.1 From 13fea6d4f73942e6961aec97ba4c593619d18f6f Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Mon, 21 Jun 2010 13:50:18 -0700 Subject: lasi82596: fix netdev_mc_count conversion Fix commit 4cd24eaf0 (net: use netdev_mc_count and netdev_mc_empty when appropriate) Signed-off-by: Helge Deller Signed-off-by: David S. Miller --- drivers/net/lib82596.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/lib82596.c b/drivers/net/lib82596.c index ce5d6e9..c27f429 100644 --- a/drivers/net/lib82596.c +++ b/drivers/net/lib82596.c @@ -1343,7 +1343,7 @@ static void set_multicast_list(struct net_device *dev) DEB(DEB_MULTI, printk(KERN_DEBUG "%s: set multicast list, %d entries, promisc %s, allmulti %s\n", - dev->name, dev->mc_count, + dev->name, netdev_mc_count(dev), dev->flags & IFF_PROMISC ? "ON" : "OFF", dev->flags & IFF_ALLMULTI ? "ON" : "OFF")); -- cgit v1.1 From 5967d33ce8a030f01a716fc0b25fcb03744a5fda Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Tue, 22 Jun 2010 16:41:31 +0900 Subject: clocksource: sh_cmt: Fix up bogus shift value. The previous CMT fixup accidentally copied in the TMU shift value, reset this back to its original value while preserving the TMU fix. Signed-off-by: Paul Mundt --- drivers/clocksource/sh_cmt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c index f3d3898..717305d 100644 --- a/drivers/clocksource/sh_cmt.c +++ b/drivers/clocksource/sh_cmt.c @@ -449,7 +449,7 @@ static int sh_cmt_register_clocksource(struct sh_cmt_priv *p, clk_disable(p->clk); /* TODO: calculate good shift from rate and counter bit width */ - cs->shift = 10; + cs->shift = 0; cs->mult = clocksource_hz2mult(p->rate, cs->shift); dev_info(&p->pdev->dev, "used as clock source\n"); -- cgit v1.1 From d5dc0ae4df9db00b8122378d56a071039b17a1eb Mon Sep 17 00:00:00 2001 From: Filip Aben Date: Tue, 22 Jun 2010 10:10:35 -0700 Subject: hso: remove setting of low_latency flag This patch removes the setting of the low_latency flag. tty_flip_buffer_push() is occasionally being called in irq context, which causes a hang if the low_latency flag is set. Removing the low_latency flag only seems to impact the flush to ldisc, which will now be put on a workqueue. Signed-off-by: Filip Aben Signed-off-by: David S. Miller --- drivers/net/usb/hso.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c index 0a3c41f..4dd2351 100644 --- a/drivers/net/usb/hso.c +++ b/drivers/net/usb/hso.c @@ -1334,7 +1334,6 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp) /* check for port already opened, if not set the termios */ serial->open_count++; if (serial->open_count == 1) { - tty->low_latency = 1; serial->rx_state = RX_IDLE; /* Force default termio settings */ _hso_serial_set_termios(tty, NULL); -- cgit v1.1 From 0b28bac5aef7bd1ab213723df031e61db9ff151a Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Thu, 17 Jun 2010 22:31:17 -0700 Subject: Input: fixup X86_MRST selects Some of the recent X86_MRST additions make some "select"s conditional on X86_MRST but missed some related kconfig symbols, causing: drivers/built-in.o: In function `ps2_end_command': (.text+0x257ab2): undefined reference to `i8042_check_port_owner' drivers/built-in.o: In function `ps2_end_command': (.text+0x257ae1): undefined reference to `i8042_unlock_chip' drivers/built-in.o: In function `ps2_begin_command': (.text+0x257b40): undefined reference to `i8042_check_port_owner' drivers/built-in.o: In function `ps2_begin_command': (.text+0x257b6f): undefined reference to `i8042_lock_chip' when SERIO_I8042=m, SERIO_LIBPS2=y, KEYBOARD_ATKBD=y. We need to make i8042 dependant upon !X86_MRST and allow deselecting atkbd on Moorestown even when !CONFIG_EMBEDDED. Signed-off-by: Randy Dunlap Cc: Jacob Pan Signed-off-by: Dmitry Torokhov --- drivers/input/keyboard/Kconfig | 2 +- drivers/input/serio/Kconfig | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index d8fa5d7..0f9a478 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -69,7 +69,7 @@ config KEYBOARD_ATARI module will be called atakbd. config KEYBOARD_ATKBD - tristate "AT keyboard" if EMBEDDED || !X86 + tristate "AT keyboard" if EMBEDDED || !X86 || X86_MRST default y select SERIO select SERIO_LIBPS2 diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig index 3bfe8fa..256b9e9 100644 --- a/drivers/input/serio/Kconfig +++ b/drivers/input/serio/Kconfig @@ -22,7 +22,7 @@ config SERIO_I8042 tristate "i8042 PC Keyboard controller" if EMBEDDED || !X86 default y depends on !PARISC && (!ARM || ARCH_SHARK || FOOTBRIDGE_HOST) && \ - (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN + (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN && !X86_MRST help i8042 is the chip over which the standard AT keyboard and PS/2 mouse are connected to the computer. If you use these devices, -- cgit v1.1 From 493630b20389b66dc475eb05cfefd33ad98d3741 Mon Sep 17 00:00:00 2001 From: Ping Cheng Date: Tue, 22 Jun 2010 11:21:34 -0700 Subject: Input: wacom - fix serial number handling on Cintiq 21UX2 Cintiq 21UX2 added 8 more bits for the tool serial number and more buttons for the expresskey. We did not enable them properly in the last patch. Signed-off-by: Ping Cheng Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_wac.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c index d564af5..415f630 100644 --- a/drivers/input/tablet/wacom_wac.c +++ b/drivers/input/tablet/wacom_wac.c @@ -284,12 +284,13 @@ static int wacom_intuos_inout(struct wacom_wac *wacom) (data[4] << 20) + (data[5] << 12) + (data[6] << 4) + (data[7] >> 4); - wacom->id[idx] = (data[2] << 4) | (data[3] >> 4); + wacom->id[idx] = (data[2] << 4) | (data[3] >> 4) | + ((data[7] & 0x0f) << 20) | ((data[8] & 0xf0) << 12); - switch (wacom->id[idx]) { + switch (wacom->id[idx] & 0xfffff) { case 0x812: /* Inking pen */ case 0x801: /* Intuos3 Inking pen */ - case 0x20802: /* Intuos4 Classic Pen */ + case 0x20802: /* Intuos4 Inking Pen */ case 0x012: wacom->tool[idx] = BTN_TOOL_PENCIL; break; @@ -513,7 +514,7 @@ static int wacom_intuos_irq(struct wacom_wac *wacom) input_report_abs(input, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]); input_report_abs(input, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]); - if ((data[5] & 0x1f) | (data[6] & 0x1f) | (data[1] & 0x1f) | + if ((data[5] & 0x1f) | data[6] | (data[1] & 0x1f) | data[2] | (data[3] & 0x1f) | data[4] | data[8] | (data[7] & 0x01)) { input_report_key(input, wacom->tool[1], 1); -- cgit v1.1 From 686d363786a53ed28ee875b84ef24e6d5126ef6f Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Thu, 10 Jun 2010 18:16:11 +0300 Subject: virtio: return ENOMEM on out of memory add_buf returns ring size on out of memory, this is not what devices expect. Signed-off-by: Michael S. Tsirkin Acked-by: Amit Shah Signed-off-by: Rusty Russell Cc: stable@kernel.org # .34.x --- drivers/virtio/virtio_ring.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index 1ca8890..afe7e21 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -119,7 +119,7 @@ static int vring_add_indirect(struct vring_virtqueue *vq, desc = kmalloc((out + in) * sizeof(struct vring_desc), gfp); if (!desc) - return vq->vring.num; + return -ENOMEM; /* Transfer entries from the sg list into the indirect page */ for (i = 0; i < out; i++) { -- cgit v1.1 From b03214d559471359e2a85ae256686381d0672f29 Mon Sep 17 00:00:00 2001 From: "Michael S. Tsirkin" Date: Wed, 23 Jun 2010 22:49:06 -0600 Subject: virtio-pci: disable msi at startup virtio-pci resets the device at startup by writing to the status register, but this does not clear the pci config space, specifically msi enable status which affects register layout. This breaks things like kdump when they try to use e.g. virtio-blk. Fix by forcing msi off at startup. Since pci.c already has a routine to do this, we export and use it instead of duplicating code. Signed-off-by: Michael S. Tsirkin Tested-by: Vivek Goyal Acked-by: Jesse Barnes Cc: linux-pci@vger.kernel.org Signed-off-by: Rusty Russell Cc: stable@kernel.org --- drivers/pci/pci.c | 1 + drivers/virtio/virtio_pci.c | 3 +++ 2 files changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 60f30e7..740fb4e 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -2292,6 +2292,7 @@ void pci_msi_off(struct pci_dev *dev) pci_write_config_word(dev, pos + PCI_MSIX_FLAGS, control); } } +EXPORT_SYMBOL_GPL(pci_msi_off); #ifndef HAVE_ARCH_PCI_SET_DMA_MAX_SEGMENT_SIZE int pci_set_dma_max_seg_size(struct pci_dev *dev, unsigned int size) diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index 95896f3..ef8d9d5 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -636,6 +636,9 @@ static int __devinit virtio_pci_probe(struct pci_dev *pci_dev, INIT_LIST_HEAD(&vp_dev->virtqueues); spin_lock_init(&vp_dev->lock); + /* Disable MSI/MSIX to bring device to a known good state. */ + pci_msi_off(pci_dev); + /* enable the device */ err = pci_enable_device(pci_dev); if (err) -- cgit v1.1 From 06aeb78b85d8c04af03eb37353aa0df98d3db170 Mon Sep 17 00:00:00 2001 From: Anirban Chakraborty Date: Wed, 23 Jun 2010 11:49:42 -0700 Subject: net: add dependency on fw class module to qlcnic and netxen_nic netxen_nic and qlcnic driver depends on firmware_class module. Signed-off-by: Anirban Chakraborty Signed-off-by: Amit Kumar Salecha Signed-off-by: David S. Miller --- drivers/net/Kconfig | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 2decc59..ce2fcdd 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -2754,6 +2754,7 @@ config MYRI10GE_DCA config NETXEN_NIC tristate "NetXen Multi port (1/10) Gigabit Ethernet NIC" depends on PCI + select FW_LOADER help This enables the support for NetXen's Gigabit Ethernet card. @@ -2819,6 +2820,7 @@ config BNX2X config QLCNIC tristate "QLOGIC QLCNIC 1/10Gb Converged Ethernet NIC Support" depends on PCI + select FW_LOADER help This driver supports QLogic QLE8240 and QLE8242 Converged Ethernet devices. -- cgit v1.1 From 6b2a541db58dba5860ccbcfaf36caee064b8a9fd Mon Sep 17 00:00:00 2001 From: Dmitry Kravkov Date: Wed, 23 Jun 2010 11:57:09 -0700 Subject: cnic: Disable statistics initialization for eth clients that do not support statistics Disable statistics initialization for eth clients that do not support statistics. This prevents memory corruption on bnx2x hw. Signed-off-by: Dmitry Kravkov Signed-off-by: Michael Chan Signed-off-by: Eilon Greenstein --- drivers/net/cnic.c | 55 +++++++++++++++++++++++++++++++++--------------------- 1 file changed, 34 insertions(+), 21 deletions(-) (limited to 'drivers') diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c index fe92566..8047126 100644 --- a/drivers/net/cnic.c +++ b/drivers/net/cnic.c @@ -3919,8 +3919,9 @@ static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev) HC_INDEX_DEF_C_ETH_ISCSI_CQ_CONS; context->cstorm_st_context.status_block_id = BNX2X_DEF_SB_ID; - context->xstorm_st_context.statistics_data = (cli | - XSTORM_ETH_ST_CONTEXT_STATISTICS_ENABLE); + if (cli < MAX_X_STAT_COUNTER_ID) + context->xstorm_st_context.statistics_data = cli | + XSTORM_ETH_ST_CONTEXT_STATISTICS_ENABLE; context->xstorm_ag_context.cdu_reserved = CDU_RSRVD_VALUE_TYPE_A(BNX2X_HW_CID(BNX2X_ISCSI_L2_CID, func), @@ -3928,10 +3929,12 @@ static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev) ETH_CONNECTION_TYPE); /* reset xstorm per client statistics */ - val = BAR_XSTRORM_INTMEM + - XSTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli); - for (i = 0; i < sizeof(struct xstorm_per_client_stats) / 4; i++) - CNIC_WR(dev, val + i * 4, 0); + if (cli < MAX_X_STAT_COUNTER_ID) { + val = BAR_XSTRORM_INTMEM + + XSTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli); + for (i = 0; i < sizeof(struct xstorm_per_client_stats) / 4; i++) + CNIC_WR(dev, val + i * 4, 0); + } cp->tx_cons_ptr = &cp->bnx2x_def_status_blk->c_def_status_block.index_values[ @@ -3978,9 +3981,11 @@ static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev) BNX2X_ISCSI_RX_SB_INDEX_NUM; context->ustorm_st_context.common.clientId = cli; context->ustorm_st_context.common.status_block_id = BNX2X_DEF_SB_ID; - context->ustorm_st_context.common.flags = - USTORM_ETH_ST_CONTEXT_CONFIG_ENABLE_STATISTICS; - context->ustorm_st_context.common.statistics_counter_id = cli; + if (cli < MAX_U_STAT_COUNTER_ID) { + context->ustorm_st_context.common.flags = + USTORM_ETH_ST_CONTEXT_CONFIG_ENABLE_STATISTICS; + context->ustorm_st_context.common.statistics_counter_id = cli; + } context->ustorm_st_context.common.mc_alignment_log_size = 0; context->ustorm_st_context.common.bd_buff_size = cp->l2_single_buf_size; @@ -4011,10 +4016,13 @@ static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev) /* client tstorm info */ tstorm_client.mtu = cp->l2_single_buf_size - 14; - tstorm_client.config_flags = - (TSTORM_ETH_CLIENT_CONFIG_E1HOV_REM_ENABLE | - TSTORM_ETH_CLIENT_CONFIG_STATSITICS_ENABLE); - tstorm_client.statistics_counter_id = cli; + tstorm_client.config_flags = TSTORM_ETH_CLIENT_CONFIG_E1HOV_REM_ENABLE; + + if (cli < MAX_T_STAT_COUNTER_ID) { + tstorm_client.config_flags |= + TSTORM_ETH_CLIENT_CONFIG_STATSITICS_ENABLE; + tstorm_client.statistics_counter_id = cli; + } CNIC_WR(dev, BAR_TSTRORM_INTMEM + TSTORM_CLIENT_CONFIG_OFFSET(port, cli), @@ -4024,16 +4032,21 @@ static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev) ((u32 *)&tstorm_client)[1]); /* reset tstorm per client statistics */ - val = BAR_TSTRORM_INTMEM + - TSTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli); - for (i = 0; i < sizeof(struct tstorm_per_client_stats) / 4; i++) - CNIC_WR(dev, val + i * 4, 0); + if (cli < MAX_T_STAT_COUNTER_ID) { + + val = BAR_TSTRORM_INTMEM + + TSTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli); + for (i = 0; i < sizeof(struct tstorm_per_client_stats) / 4; i++) + CNIC_WR(dev, val + i * 4, 0); + } /* reset ustorm per client statistics */ - val = BAR_USTRORM_INTMEM + - USTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli); - for (i = 0; i < sizeof(struct ustorm_per_client_stats) / 4; i++) - CNIC_WR(dev, val + i * 4, 0); + if (cli < MAX_U_STAT_COUNTER_ID) { + val = BAR_USTRORM_INTMEM + + USTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli); + for (i = 0; i < sizeof(struct ustorm_per_client_stats) / 4; i++) + CNIC_WR(dev, val + i * 4, 0); + } cp->rx_cons_ptr = &cp->bnx2x_def_status_blk->u_def_status_block.index_values[ -- cgit v1.1 From 38000a94a902e94ca8b5498f7871c6316de8957a Mon Sep 17 00:00:00 2001 From: Brandon Philips Date: Wed, 16 Jun 2010 16:21:58 +0000 Subject: sky2: enable rx/tx in sky2_phy_reinit() sky2_phy_reinit is called by the ethtool helpers sky2_set_settings, sky2_nway_reset and sky2_set_pauseparam when netif_running. However, at the end of sky2_phy_init GM_GP_CTRL has GM_GPCR_RX_ENA and GM_GPCR_TX_ENA cleared. So, doing these commands causes the device to stop working: $ ethtool -r eth0 $ ethtool -A eth0 autoneg off Fix this issue by enabling Rx/Tx after running sky2_phy_init in sky2_phy_reinit. Signed-off-by: Brandon Philips Tested-by: Brandon Philips Cc: stable@kernel.org Tested-by: Mike McCormack Signed-off-by: David S. Miller --- drivers/net/sky2.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index 2111c7b..7985165 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -717,11 +717,24 @@ static void sky2_phy_power_down(struct sky2_hw *hw, unsigned port) sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); } +/* Enable Rx/Tx */ +static void sky2_enable_rx_tx(struct sky2_port *sky2) +{ + struct sky2_hw *hw = sky2->hw; + unsigned port = sky2->port; + u16 reg; + + reg = gma_read16(hw, port, GM_GP_CTRL); + reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA; + gma_write16(hw, port, GM_GP_CTRL, reg); +} + /* Force a renegotiation */ static void sky2_phy_reinit(struct sky2_port *sky2) { spin_lock_bh(&sky2->phy_lock); sky2_phy_init(sky2->hw, sky2->port); + sky2_enable_rx_tx(sky2); spin_unlock_bh(&sky2->phy_lock); } @@ -2040,7 +2053,6 @@ static void sky2_link_up(struct sky2_port *sky2) { struct sky2_hw *hw = sky2->hw; unsigned port = sky2->port; - u16 reg; static const char *fc_name[] = { [FC_NONE] = "none", [FC_TX] = "tx", @@ -2048,10 +2060,7 @@ static void sky2_link_up(struct sky2_port *sky2) [FC_BOTH] = "both", }; - /* enable Rx/Tx */ - reg = gma_read16(hw, port, GM_GP_CTRL); - reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA; - gma_write16(hw, port, GM_GP_CTRL, reg); + sky2_enable_rx_tx(sky2); gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK); -- cgit v1.1 From f3b99be19ded511a1bf05a148276239d9f13eefa Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 24 Jun 2010 13:31:03 +1000 Subject: Restore partition detection of newly created md arrays. Commit b821eaa572fd737faaf6928ba046e571526c36c6 broke partition detection for md arrays. The logic was almost right. However if revalidate_disk is called when the device is not yet open, bdev->bd_disk won't be set, so the flush_disk() Call will not set bd_invalidated. So when md_open is called we still need to ensure that ->bd_invalidated gets set. This is easily done with a call to check_disk_size_change in the place where the offending commit removed check_disk_change. At the important times, the size will have changed from 0 to non-zero, so check_disk_size_change will set bd_invalidated. Tested-by: Duncan <1i5t5.duncan@cox.net> Reported-by: Duncan <1i5t5.duncan@cox.net> Signed-off-by: NeilBrown --- drivers/md/md.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/md/md.c b/drivers/md/md.c index 46b3a04..4edcda8 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5895,6 +5895,7 @@ static int md_open(struct block_device *bdev, fmode_t mode) atomic_inc(&mddev->openers); mutex_unlock(&mddev->open_mutex); + check_disk_size_change(mddev->gendisk, bdev); out: return err; } -- cgit v1.1 From 0544a21db02c1d8883158fd6f323364f830a120a Mon Sep 17 00:00:00 2001 From: "Prasanna S. Panchamukhi" Date: Thu, 24 Jun 2010 13:31:03 +1000 Subject: md: raid10: Fix null pointer dereference in fix_read_error() Such NULL pointer dereference can occur when the driver was fixing the read errors/bad blocks and the disk was physically removed causing a system crash. This patch check if the rcu_dereference() returns valid rdev before accessing it in fix_read_error(). Cc: stable@kernel.org Signed-off-by: Prasanna S. Panchamukhi Signed-off-by: Rob Becker Signed-off-by: NeilBrown --- drivers/md/raid10.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 0372499..6d420cb 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1482,14 +1482,14 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio) int sectors = r10_bio->sectors; mdk_rdev_t*rdev; int max_read_errors = atomic_read(&mddev->max_corr_read_errors); + int d = r10_bio->devs[r10_bio->read_slot].devnum; rcu_read_lock(); - { - int d = r10_bio->devs[r10_bio->read_slot].devnum; + rdev = rcu_dereference(conf->mirrors[d].rdev); + if (rdev) { /* If rdev is not NULL */ char b[BDEVNAME_SIZE]; int cur_read_error_count = 0; - rdev = rcu_dereference(conf->mirrors[d].rdev); bdevname(rdev->bdev, b); if (test_bit(Faulty, &rdev->flags)) { @@ -1530,7 +1530,7 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio) rcu_read_lock(); do { - int d = r10_bio->devs[sl].devnum; + d = r10_bio->devs[sl].devnum; rdev = rcu_dereference(conf->mirrors[d].rdev); if (rdev && test_bit(In_sync, &rdev->flags)) { @@ -1564,7 +1564,7 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio) rcu_read_lock(); while (sl != r10_bio->read_slot) { char b[BDEVNAME_SIZE]; - int d; + if (sl==0) sl = conf->copies; sl--; @@ -1601,7 +1601,7 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio) } sl = start; while (sl != r10_bio->read_slot) { - int d; + if (sl==0) sl = conf->copies; sl--; -- cgit v1.1 From e93f68a1fc6244c05ad8fae28e75835ec74ab34e Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 15 Jun 2010 09:36:03 +0100 Subject: md: fix handling of array level takeover that re-arranges devices. Most array level changes leave the list of devices largely unchanged, possibly causing one at the end to become redundant. However conversions between RAID0 and RAID10 need to renumber all devices (except 0). This renumbering is currently being done in the ->run method when the new personality takes over. However this is too late as the common code in md.c might already have invalidated some of the devices if they had a ->raid_disk number that appeared to high. Moving it into the ->takeover method is too early as the array is still active at that time and wrong ->raid_disk numbers could cause confusion. So add a ->new_raid_disk field to mdk_rdev_s and use it to communicate the new raid_disk number. Now the common code knows exactly which devices need to be renumbered, and which can be invalidated, and can do it all at a convenient time when the array is suspend. It can also update some symlinks in sysfs which previously were not be updated correctly. Reported-by: Maciej Trela Signed-off-by: NeilBrown --- drivers/md/md.c | 35 ++++++++++++++++++++++++++++++----- drivers/md/md.h | 3 +++ drivers/md/raid0.c | 11 +++-------- drivers/md/raid0.h | 3 --- drivers/md/raid10.c | 19 +++++-------------- drivers/md/raid10.h | 5 ----- 6 files changed, 41 insertions(+), 35 deletions(-) (limited to 'drivers') diff --git a/drivers/md/md.c b/drivers/md/md.c index 4edcda8..4869128 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3001,6 +3001,9 @@ level_store(mddev_t *mddev, const char *buf, size_t len) return -EINVAL; } + list_for_each_entry(rdev, &mddev->disks, same_set) + rdev->new_raid_disk = rdev->raid_disk; + /* ->takeover must set new_* and/or delta_disks * if it succeeds, and may set them when it fails. */ @@ -3051,13 +3054,35 @@ level_store(mddev_t *mddev, const char *buf, size_t len) mddev->safemode = 0; } - module_put(mddev->pers->owner); - /* Invalidate devices that are now superfluous */ - list_for_each_entry(rdev, &mddev->disks, same_set) - if (rdev->raid_disk >= mddev->raid_disks) { - rdev->raid_disk = -1; + list_for_each_entry(rdev, &mddev->disks, same_set) { + char nm[20]; + if (rdev->raid_disk < 0) + continue; + if (rdev->new_raid_disk > mddev->raid_disks) + rdev->new_raid_disk = -1; + if (rdev->new_raid_disk == rdev->raid_disk) + continue; + sprintf(nm, "rd%d", rdev->raid_disk); + sysfs_remove_link(&mddev->kobj, nm); + } + list_for_each_entry(rdev, &mddev->disks, same_set) { + if (rdev->raid_disk < 0) + continue; + if (rdev->new_raid_disk == rdev->raid_disk) + continue; + rdev->raid_disk = rdev->new_raid_disk; + if (rdev->raid_disk < 0) clear_bit(In_sync, &rdev->flags); + else { + char nm[20]; + sprintf(nm, "rd%d", rdev->raid_disk); + if(sysfs_create_link(&mddev->kobj, &rdev->kobj, nm)) + printk("md: cannot register %s for %s after level change\n", + nm, mdname(mddev)); } + } + + module_put(mddev->pers->owner); mddev->pers = pers; mddev->private = priv; strlcpy(mddev->clevel, pers->name, sizeof(mddev->clevel)); diff --git a/drivers/md/md.h b/drivers/md/md.h index 7ab5ea1..10597bf 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -78,6 +78,9 @@ struct mdk_rdev_s int desc_nr; /* descriptor index in the superblock */ int raid_disk; /* role of device in array */ + int new_raid_disk; /* role that the device will have in + * the array after a level-change completes. + */ int saved_raid_disk; /* role that device used to have in the * array and could again if we did a partial * resync from the bitmap diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index e70f004..7c7c380 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -173,9 +173,11 @@ static int create_strip_zones(mddev_t *mddev, raid0_conf_t **private_conf) list_for_each_entry(rdev1, &mddev->disks, same_set) { int j = rdev1->raid_disk; - if (mddev->level == 10) + if (mddev->level == 10) { /* taking over a raid10-n2 array */ j /= 2; + rdev1->new_raid_disk = j; + } if (j < 0 || j >= mddev->raid_disks) { printk(KERN_ERR "md/raid0:%s: bad disk number %d - " @@ -361,12 +363,6 @@ static int raid0_run(mddev_t *mddev) mddev->private = conf; } conf = mddev->private; - if (conf->scale_raid_disks) { - int i; - for (i=0; i < conf->strip_zone[0].nb_dev; i++) - conf->devlist[i]->raid_disk /= conf->scale_raid_disks; - /* FIXME update sysfs rd links */ - } /* calculate array device size */ md_set_array_sectors(mddev, raid0_size(mddev, 0, 0)); @@ -643,7 +639,6 @@ static void *raid0_takeover_raid10(mddev_t *mddev) mddev->recovery_cp = MaxSector; create_strip_zones(mddev, &priv_conf); - priv_conf->scale_raid_disks = 2; return priv_conf; } diff --git a/drivers/md/raid0.h b/drivers/md/raid0.h index d724e66..91f8e87 100644 --- a/drivers/md/raid0.h +++ b/drivers/md/raid0.h @@ -13,9 +13,6 @@ struct raid0_private_data struct strip_zone *strip_zone; mdk_rdev_t **devlist; /* lists of rdevs, pointed to by strip_zone->dev */ int nr_strip_zones; - int scale_raid_disks; /* divide rdev->raid_disks by this in run() - * to handle conversion from raid10 - */ }; typedef struct raid0_private_data raid0_conf_t; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 6d420cb..1bab355 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2241,7 +2241,6 @@ static conf_t *setup_conf(mddev_t *mddev) if (!conf->thread) goto out; - conf->scale_disks = 0; conf->mddev = mddev; return conf; @@ -2300,11 +2299,6 @@ static int run(mddev_t *mddev) if (disk_idx >= conf->raid_disks || disk_idx < 0) continue; - if (conf->scale_disks) { - disk_idx *= conf->scale_disks; - rdev->raid_disk = disk_idx; - /* MOVE 'rd%d' link !! */ - } disk = conf->mirrors + disk_idx; disk->rdev = rdev; @@ -2435,13 +2429,6 @@ static void *raid10_takeover_raid0(mddev_t *mddev) return ERR_PTR(-EINVAL); } - /* Update slot numbers to obtain - * degraded raid10 with missing mirrors - */ - list_for_each_entry(rdev, &mddev->disks, same_set) { - rdev->raid_disk *= 2; - } - /* Set new parameters */ mddev->new_level = 10; /* new layout: far_copies = 1, near_copies = 2 */ @@ -2454,7 +2441,11 @@ static void *raid10_takeover_raid0(mddev_t *mddev) mddev->recovery_cp = MaxSector; conf = setup_conf(mddev); - conf->scale_disks = 2; + if (!IS_ERR(conf)) + list_for_each_entry(rdev, &mddev->disks, same_set) + if (rdev->raid_disk >= 0) + rdev->new_raid_disk = rdev->raid_disk * 2; + return conf; } diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h index 3824a08..2316ac2 100644 --- a/drivers/md/raid10.h +++ b/drivers/md/raid10.h @@ -38,11 +38,6 @@ struct r10_private_data_s { int chunk_shift; /* shift from chunks to sectors */ sector_t chunk_mask; - int scale_disks; /* When starting array, multiply - * each ->raid_disk by this. - * Need for raid0->raid10 migration - */ - struct list_head retry_list; /* queue pending writes and submit them on unplug */ struct bio_list pending_bio_list; -- cgit v1.1 From f73ea87375a1b2bf6c0be82bb9a3cb9d5ee7a407 Mon Sep 17 00:00:00 2001 From: Maciej Trela Date: Wed, 16 Jun 2010 11:46:29 +0100 Subject: md: fix raid10 takeover: use new_layout for setup_conf Use mddev->new_layout in setup_conf. Also use new_chunk, and don't set ->degraded in takeover(). That gets set in run() Signed-off-by: Maciej Trela Signed-off-by: NeilBrown --- drivers/md/raid10.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 1bab355..42e64e4 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2161,22 +2161,22 @@ static conf_t *setup_conf(mddev_t *mddev) sector_t stride, size; int err = -EINVAL; - if (mddev->chunk_sectors < (PAGE_SIZE >> 9) || - !is_power_of_2(mddev->chunk_sectors)) { + if (mddev->new_chunk_sectors < (PAGE_SIZE >> 9) || + !is_power_of_2(mddev->new_chunk_sectors)) { printk(KERN_ERR "md/raid10:%s: chunk size must be " "at least PAGE_SIZE(%ld) and be a power of 2.\n", mdname(mddev), PAGE_SIZE); goto out; } - nc = mddev->layout & 255; - fc = (mddev->layout >> 8) & 255; - fo = mddev->layout & (1<<16); + nc = mddev->new_layout & 255; + fc = (mddev->new_layout >> 8) & 255; + fo = mddev->new_layout & (1<<16); if ((nc*fc) <2 || (nc*fc) > mddev->raid_disks || - (mddev->layout >> 17)) { + (mddev->new_layout >> 17)) { printk(KERN_ERR "md/raid10:%s: unsupported raid10 layout: 0x%8x\n", - mdname(mddev), mddev->layout); + mdname(mddev), mddev->new_layout); goto out; } @@ -2435,7 +2435,6 @@ static void *raid10_takeover_raid0(mddev_t *mddev) mddev->new_layout = (1<<8) + 2; mddev->new_chunk_sectors = mddev->chunk_sectors; mddev->delta_disks = mddev->raid_disks; - mddev->degraded = mddev->raid_disks; mddev->raid_disks *= 2; /* make sure it will be not marked as dirty */ mddev->recovery_cp = MaxSector; -- cgit v1.1 From 001048a318d48e93cb6a1246f3b20335b2a7c855 Mon Sep 17 00:00:00 2001 From: Maciej Trela Date: Wed, 16 Jun 2010 11:55:14 +0100 Subject: md: clear layout after ->raid0 takeover After takeover from raid5/10 -> raid0 mddev->layout is not cleared. Signed-off-by: Maciej Trela Signed-off-by: NeilBrown --- drivers/md/raid0.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 7c7c380..ac09b7d 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -592,6 +592,7 @@ static void *raid0_takeover_raid5(mddev_t *mddev) /* Set new parameters */ mddev->new_level = 0; + mddev->new_layout = 0; mddev->new_chunk_sectors = mddev->chunk_sectors; mddev->raid_disks--; mddev->delta_disks = -1; @@ -631,6 +632,7 @@ static void *raid0_takeover_raid10(mddev_t *mddev) /* Set new parameters */ mddev->new_level = 0; + mddev->new_layout = 0; mddev->new_chunk_sectors = mddev->chunk_sectors; mddev->delta_disks = - mddev->raid_disks / 2; mddev->raid_disks += mddev->delta_disks; -- cgit v1.1 From 049d6c1ef983c9ac43aa423dfd752071a5b0002d Mon Sep 17 00:00:00 2001 From: Maciej Trela Date: Wed, 16 Jun 2010 11:56:12 +0100 Subject: md: enable raid4->raid0 takeover Only level 5 with layout=PARITY_N can be taken over to raid0 now. Lets allow level 4 either. Signed-off-by: Maciej Trela Signed-off-by: NeilBrown --- drivers/md/raid0.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index ac09b7d..563abed 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -569,7 +569,7 @@ static void raid0_status(struct seq_file *seq, mddev_t *mddev) return; } -static void *raid0_takeover_raid5(mddev_t *mddev) +static void *raid0_takeover_raid45(mddev_t *mddev) { mdk_rdev_t *rdev; raid0_conf_t *priv_conf; @@ -647,12 +647,16 @@ static void *raid0_takeover_raid10(mddev_t *mddev) static void *raid0_takeover(mddev_t *mddev) { /* raid0 can take over: + * raid4 - if all data disks are active. * raid5 - providing it is Raid4 layout and one disk is faulty * raid10 - assuming we have all necessary active disks */ + if (mddev->level == 4) + return raid0_takeover_raid45(mddev); + if (mddev->level == 5) { if (mddev->layout == ALGORITHM_PARITY_N) - return raid0_takeover_raid5(mddev); + return raid0_takeover_raid45(mddev); printk(KERN_ERR "md/raid0:%s: Raid can only takeover Raid5 with layout: %d\n", mdname(mddev), ALGORITHM_PARITY_N); -- cgit v1.1 From e4e11e385d1e5516ac76c956d6c25e6c2fa1b8d0 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 16 Jun 2010 16:45:16 +1000 Subject: md/raid5: avoid oops when number of devices is reduced then increased. The entries in the stripe_cache maintained by raid5 are enlarged when we increased the number of devices in the array, but not shrunk when we reduce the number of devices. So if entries are added after reducing the number of devices, we much ensure to initialise the whole entry, not just the part that is currently relevant. Otherwise if we enlarge the array again, we will reference uninitialised values. As grow_buffers/shrink_buffer now want to use a count that is stored explicity in the raid_conf, they should get it from there rather than being passed it as a parameter. Signed-off-by: NeilBrown --- drivers/md/raid5.c | 19 ++++++++++--------- 1 file changed, 10 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index d2c0f94..2c055de 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -277,12 +277,13 @@ out: return sh; } -static void shrink_buffers(struct stripe_head *sh, int num) +static void shrink_buffers(struct stripe_head *sh) { struct page *p; int i; + int num = sh->raid_conf->pool_size; - for (i=0; idev[i].page; if (!p) continue; @@ -291,11 +292,12 @@ static void shrink_buffers(struct stripe_head *sh, int num) } } -static int grow_buffers(struct stripe_head *sh, int num) +static int grow_buffers(struct stripe_head *sh) { int i; + int num = sh->raid_conf->pool_size; - for (i=0; iraid_disks, conf->previous_raid_disks); sh = kmem_cache_alloc(conf->slab_cache, GFP_KERNEL); if (!sh) return 0; - memset(sh, 0, sizeof(*sh) + (disks-1)*sizeof(struct r5dev)); + memset(sh, 0, sizeof(*sh) + (conf->pool_size-1)*sizeof(struct r5dev)); sh->raid_conf = conf; spin_lock_init(&sh->lock); #ifdef CONFIG_MULTICORE_RAID456 init_waitqueue_head(&sh->ops.wait_for_ops); #endif - if (grow_buffers(sh, disks)) { - shrink_buffers(sh, disks); + if (grow_buffers(sh)) { + shrink_buffers(sh); kmem_cache_free(conf->slab_cache, sh); return 0; } @@ -1468,7 +1469,7 @@ static int drop_one_stripe(raid5_conf_t *conf) if (!sh) return 0; BUG_ON(atomic_read(&sh->count)); - shrink_buffers(sh, conf->pool_size); + shrink_buffers(sh); kmem_cache_free(conf->slab_cache, sh); atomic_dec(&conf->active_stripes); return 1; -- cgit v1.1 From 70fffd0bfab1558a8c64c5e903dea1fb84cd9f6b Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 16 Jun 2010 17:01:25 +1000 Subject: md: Don't update ->recovery_offset when reshaping an array to fewer devices. When an array is reshaped to have fewer devices, the reshape proceeds from the end of the devices to the beginning. If a device happens to be non-In_sync (which is possible but rare) we would normally update the ->recovery_offset as the reshape progresses. However that would be wrong as the recover_offset records that the early part of the device is in_sync, while in fact it would only be the later part that is in_sync, and in any case the offset number would be measured from the wrong end of the device. Relatedly, if after a reshape a spare is discovered to not be recoverred all the way to the end, not allow spare_active to incorporate it in the array. This becomes relevant in the following sample scenario: A 4 drive RAID5 is converted to a 6 drive RAID6 in a combined operation. The RAID5->RAID6 conversion will cause a 5 drive to be included as a spare, then the 5drive -> 6drive reshape will effectively rebuild that spare as it progresses. The 6th drive is treated as in_sync the whole time as there is never any case that we might consider reading from it, but must not because there is no valid data. If we interrupt this reshape part-way through and reverse it to return to a 5-drive RAID6 (or event a 4-drive RAID5), we don't want to update the recovery_offset - as that would be wrong - and we don't want to include that spare as active in the 5-drive RAID6 when the reversed reshape completed and it will be mostly out-of-sync still. Signed-off-by: NeilBrown --- drivers/md/md.c | 2 ++ drivers/md/raid5.c | 1 + 2 files changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/md/md.c b/drivers/md/md.c index 4869128..cb20d0b 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2087,6 +2087,7 @@ static void sync_sbs(mddev_t * mddev, int nospares) /* First make sure individual recovery_offsets are correct */ list_for_each_entry(rdev, &mddev->disks, same_set) { if (rdev->raid_disk >= 0 && + mddev->delta_disks >= 0 && !test_bit(In_sync, &rdev->flags) && mddev->curr_resync_completed > rdev->recovery_offset) rdev->recovery_offset = mddev->curr_resync_completed; @@ -6872,6 +6873,7 @@ void md_do_sync(mddev_t *mddev) rcu_read_lock(); list_for_each_entry_rcu(rdev, &mddev->disks, same_set) if (rdev->raid_disk >= 0 && + mddev->delta_disks >= 0 && !test_bit(Faulty, &rdev->flags) && !test_bit(In_sync, &rdev->flags) && rdev->recovery_offset < mddev->curr_resync) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 2c055de..f972a94 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5208,6 +5208,7 @@ static int raid5_spare_active(mddev_t *mddev) for (i = 0; i < conf->raid_disks; i++) { tmp = conf->disks + i; if (tmp->rdev + && tmp->rdev->recovery_offset == MaxSector && !test_bit(Faulty, &tmp->rdev->flags) && !test_and_set_bit(In_sync, &tmp->rdev->flags)) { unsigned long flags; -- cgit v1.1 From 674806d62fb02a22eea948c9f1b5e58e0947b728 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 16 Jun 2010 17:17:53 +1000 Subject: md/raid5: More careful check for "has array failed". When we are reshaping an array, the device failure combinations that cause us to decide that the array as failed are more subtle. In particular, any 'spare' will be fully in-sync in the section of the array that has already been reshaped, thus failures that affect only that section are less critical. So encode this subtlety in a new function and call it as appropriate. The case that showed this problem was a 4 drive RAID5 to 8 drive RAID6 conversion where the last two devices failed. This resulted in: good good good good incomplete good good failed failed while converting a 5-drive RAID6 to 8 drive RAID5 The incomplete device causes the whole array to look bad, bad as it was actually good for the section that had been converted to 8-drives, all the data was actually safe. Reported-by: Terry Morris Signed-off-by: NeilBrown --- drivers/md/raid5.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 71 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index f972a94..d4b233c 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -366,6 +366,73 @@ static struct stripe_head *__find_stripe(raid5_conf_t *conf, sector_t sector, return NULL; } +/* + * Need to check if array has failed when deciding whether to: + * - start an array + * - remove non-faulty devices + * - add a spare + * - allow a reshape + * This determination is simple when no reshape is happening. + * However if there is a reshape, we need to carefully check + * both the before and after sections. + * This is because some failed devices may only affect one + * of the two sections, and some non-in_sync devices may + * be insync in the section most affected by failed devices. + */ +static int has_failed(raid5_conf_t *conf) +{ + int degraded; + int i; + if (conf->mddev->reshape_position == MaxSector) + return conf->mddev->degraded > conf->max_degraded; + + rcu_read_lock(); + degraded = 0; + for (i = 0; i < conf->previous_raid_disks; i++) { + mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev); + if (!rdev || test_bit(Faulty, &rdev->flags)) + degraded++; + else if (test_bit(In_sync, &rdev->flags)) + ; + else + /* not in-sync or faulty. + * If the reshape increases the number of devices, + * this is being recovered by the reshape, so + * this 'previous' section is not in_sync. + * If the number of devices is being reduced however, + * the device can only be part of the array if + * we are reverting a reshape, so this section will + * be in-sync. + */ + if (conf->raid_disks >= conf->previous_raid_disks) + degraded++; + } + rcu_read_unlock(); + if (degraded > conf->max_degraded) + return 1; + rcu_read_lock(); + degraded = 0; + for (i = 0; i < conf->raid_disks; i++) { + mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev); + if (!rdev || test_bit(Faulty, &rdev->flags)) + degraded++; + else if (test_bit(In_sync, &rdev->flags)) + ; + else + /* not in-sync or faulty. + * If reshape increases the number of devices, this + * section has already been recovered, else it + * almost certainly hasn't. + */ + if (conf->raid_disks <= conf->previous_raid_disks) + degraded++; + } + rcu_read_unlock(); + if (degraded > conf->max_degraded) + return 1; + return 0; +} + static void unplug_slaves(mddev_t *mddev); static void raid5_unplug_device(struct request_queue *q); @@ -5006,7 +5073,7 @@ static int run(mddev_t *mddev) mddev->degraded = (max(conf->raid_disks, conf->previous_raid_disks) - working_disks); - if (mddev->degraded > conf->max_degraded) { + if (has_failed(conf)) { printk(KERN_ERR "md/raid:%s: not enough operational devices" " (%d/%d failed)\n", mdname(mddev), mddev->degraded, conf->raid_disks); @@ -5244,7 +5311,7 @@ static int raid5_remove_disk(mddev_t *mddev, int number) * isn't possible. */ if (!test_bit(Faulty, &rdev->flags) && - mddev->degraded <= conf->max_degraded && + !has_failed(conf) && number < conf->raid_disks) { err = -EBUSY; goto abort; @@ -5272,7 +5339,7 @@ static int raid5_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) int first = 0; int last = conf->raid_disks - 1; - if (mddev->degraded > conf->max_degraded) + if (has_failed(conf)) /* no point adding a device */ return -EINVAL; @@ -5364,7 +5431,7 @@ static int check_reshape(mddev_t *mddev) if (mddev->bitmap) /* Cannot grow a bitmap yet */ return -EBUSY; - if (mddev->degraded > conf->max_degraded) + if (has_failed(conf)) return -EINVAL; if (mddev->delta_disks < 0) { /* We might be able to shrink, but the devices must -- cgit v1.1 From 415e72d034c50520ddb7ff79e7d1792c1306f0c9 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 17 Jun 2010 17:25:21 +1000 Subject: md/raid5: Allow recovered part of partially recovered devices to be in-sync During a recovery of reshape the early part of some devices might be in-sync while the later parts are not. We we know we are looking at an early part it is good to treat that part as in-sync for stripe calculations. This is particularly important for a reshape which suffers device failure. Treating the data as in-sync can mean the difference between data-safety and data-loss. Signed-off-by: NeilBrown --- drivers/md/raid5.c | 42 ++++++++++++++++++++++++++++++------------ 1 file changed, 30 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index d4b233c..09f07da 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3031,7 +3031,6 @@ static void handle_stripe5(struct stripe_head *sh) mdk_rdev_t *rdev; dev = &sh->dev[i]; - clear_bit(R5_Insync, &dev->flags); pr_debug("check %d: state 0x%lx toread %p read %p write %p " "written %p\n", i, dev->flags, dev->toread, dev->read, @@ -3068,17 +3067,27 @@ static void handle_stripe5(struct stripe_head *sh) blocked_rdev = rdev; atomic_inc(&rdev->nr_pending); } - if (!rdev || !test_bit(In_sync, &rdev->flags)) { + clear_bit(R5_Insync, &dev->flags); + if (!rdev) + /* Not in-sync */; + else if (test_bit(In_sync, &rdev->flags)) + set_bit(R5_Insync, &dev->flags); + else { + /* could be in-sync depending on recovery/reshape status */ + if (sh->sector + STRIPE_SECTORS <= rdev->recovery_offset) + set_bit(R5_Insync, &dev->flags); + } + if (!test_bit(R5_Insync, &dev->flags)) { /* The ReadError flag will just be confusing now */ clear_bit(R5_ReadError, &dev->flags); clear_bit(R5_ReWrite, &dev->flags); } - if (!rdev || !test_bit(In_sync, &rdev->flags) - || test_bit(R5_ReadError, &dev->flags)) { + if (test_bit(R5_ReadError, &dev->flags)) + clear_bit(R5_Insync, &dev->flags); + if (!test_bit(R5_Insync, &dev->flags)) { s.failed++; s.failed_num = i; - } else - set_bit(R5_Insync, &dev->flags); + } } rcu_read_unlock(); @@ -3312,7 +3321,6 @@ static void handle_stripe6(struct stripe_head *sh) for (i=disks; i--; ) { mdk_rdev_t *rdev; dev = &sh->dev[i]; - clear_bit(R5_Insync, &dev->flags); pr_debug("check %d: state 0x%lx read %p write %p written %p\n", i, dev->flags, dev->toread, dev->towrite, dev->written); @@ -3350,18 +3358,28 @@ static void handle_stripe6(struct stripe_head *sh) blocked_rdev = rdev; atomic_inc(&rdev->nr_pending); } - if (!rdev || !test_bit(In_sync, &rdev->flags)) { + clear_bit(R5_Insync, &dev->flags); + if (!rdev) + /* Not in-sync */; + else if (test_bit(In_sync, &rdev->flags)) + set_bit(R5_Insync, &dev->flags); + else { + /* in sync if before recovery_offset */ + if (sh->sector + STRIPE_SECTORS <= rdev->recovery_offset) + set_bit(R5_Insync, &dev->flags); + } + if (!test_bit(R5_Insync, &dev->flags)) { /* The ReadError flag will just be confusing now */ clear_bit(R5_ReadError, &dev->flags); clear_bit(R5_ReWrite, &dev->flags); } - if (!rdev || !test_bit(In_sync, &rdev->flags) - || test_bit(R5_ReadError, &dev->flags)) { + if (test_bit(R5_ReadError, &dev->flags)) + clear_bit(R5_Insync, &dev->flags); + if (!test_bit(R5_Insync, &dev->flags)) { if (s.failed < 2) r6s.failed_num[s.failed] = i; s.failed++; - } else - set_bit(R5_Insync, &dev->flags); + } } rcu_read_unlock(); -- cgit v1.1 From 2f115882499f3e5eca33d1df07b8876cc752a1ff Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 17 Jun 2010 17:41:03 +1000 Subject: md/raid5: add a missing 'continue' in a loop. As the comment says, the tail of this loop only applies to devices that are not fully in sync, so if In_sync was set, we should avoid the rest of the loop. This bug will hardly ever cause an actual problem. The worst it can do is allow an array to be assembled that is dirty and degraded, which is not generally a good idea (without warning the sysadmin first). This will only happen if the array is RAID4 or a RAID5/6 in an intermediate state during a reshape and so has one drive that is all 'parity' - no data - while some other device has failed. This is certainly possible, but not at all common. Signed-off-by: NeilBrown --- drivers/md/raid5.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 09f07da..66cd479 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5057,8 +5057,10 @@ static int run(mddev_t *mddev) list_for_each_entry(rdev, &mddev->disks, same_set) { if (rdev->raid_disk < 0) continue; - if (test_bit(In_sync, &rdev->flags)) + if (test_bit(In_sync, &rdev->flags)) { working_disks++; + continue; + } /* This disc is not fully in-sync. However if it * just stored parity (beyond the recovery_offset), * when we don't need to be concerned about the -- cgit v1.1 From 3424bf6a772cff606fc4bc24a3639c937afb547f Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 17 Jun 2010 17:48:26 +1000 Subject: md/raid5: don't include 'spare' drives when reshaping to fewer devices. There are few situations where it would make any sense to add a spare when reducing the number of devices in an array, but it is conceivable: A 6 drive RAID6 with two missing devices could be reshaped to a 5 drive RAID6, and a spare could become available just in time for the reshape, but not early enough to have been recovered first. 'freezing' recovery can make this easy to do without any races. However doing such a thing is a bad idea. md will not record the partially-recovered state of the 'spare' and when the reshape finished it will think that the spare is still spare. Easiest way to avoid this confusion is to simply disallow it. Signed-off-by: NeilBrown --- drivers/md/raid5.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 66cd479..96c6902 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5526,8 +5526,13 @@ static int raid5_start_reshape(mddev_t *mddev) /* Add some new drives, as many as will fit. * We know there are enough to make the newly sized array work. + * Don't add devices if we are reducing the number of + * devices in the array. This is because it is not possible + * to correctly record the "partially reconstructed" state of + * such devices during the reshape and confusion could result. */ - list_for_each_entry(rdev, &mddev->disks, same_set) + if (mddev->delta_disks >= 0) + list_for_each_entry(rdev, &mddev->disks, same_set) if (rdev->raid_disk < 0 && !test_bit(Faulty, &rdev->flags)) { if (raid5_add_disk(mddev, rdev) == 0) { @@ -5549,7 +5554,7 @@ static int raid5_start_reshape(mddev_t *mddev) } /* When a reshape changes the number of devices, ->degraded - * is measured against the large of the pre and post number of + * is measured against the larger of the pre and post number of * devices.*/ if (mddev->delta_disks > 0) { spin_lock_irqsave(&conf->device_lock, flags); -- cgit v1.1 From 9735b7ef005aaef5e5905cddba893f8725cd8867 Mon Sep 17 00:00:00 2001 From: Ken Kawasaki Date: Sat, 19 Jun 2010 15:24:27 +0000 Subject: smc91c92_cs: fix the problem that lan & modem does not work simultaneously smc91c92_cs: Fix the problem that lan & modem does not work simultaneously in the Megahertz multi-function card. We need to write MEGAHERTZ_ISR to retrigger interrupt. Signed-off-by: Ken Kawasaki Signed-off-by: David S. Miller --- drivers/net/pcmcia/smc91c92_cs.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c index 64e6a84..307cd17 100644 --- a/drivers/net/pcmcia/smc91c92_cs.c +++ b/drivers/net/pcmcia/smc91c92_cs.c @@ -1505,12 +1505,20 @@ irq_done: writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR); writeb(cor, smc->base + MOT_LAN + CISREG_COR); } -#ifdef DOES_NOT_WORK - if (smc->base != NULL) { /* Megahertz MFC's */ - readb(smc->base+MEGAHERTZ_ISR); - readb(smc->base+MEGAHERTZ_ISR); + + if ((smc->base != NULL) && /* Megahertz MFC's */ + (smc->manfid == MANFID_MEGAHERTZ) && + (smc->cardid == PRODID_MEGAHERTZ_EM3288)) { + + u_char tmp; + tmp = readb(smc->base+MEGAHERTZ_ISR); + tmp = readb(smc->base+MEGAHERTZ_ISR); + + /* Retrigger interrupt if needed */ + writeb(tmp, smc->base + MEGAHERTZ_ISR); + writeb(tmp, smc->base + MEGAHERTZ_ISR); } -#endif + spin_unlock(&smc->lock); return IRQ_RETVAL(handled); } -- cgit v1.1 From ed770f01360b392564650bf1553ce723fa46afec Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Sun, 20 Jun 2010 22:07:48 +0000 Subject: cpmac: do not leak struct net_device on phy_connect errors If the call to phy_connect fails, we will return directly instead of freeing the previously allocated struct net_device. Signed-off-by: Florian Fainelli CC: stable@kernel.org Signed-off-by: David S. Miller --- drivers/net/cpmac.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/cpmac.c b/drivers/net/cpmac.c index 3c58db5..23786ee 100644 --- a/drivers/net/cpmac.c +++ b/drivers/net/cpmac.c @@ -1181,7 +1181,8 @@ static int __devinit cpmac_probe(struct platform_device *pdev) if (netif_msg_drv(priv)) printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name); - return PTR_ERR(priv->phy); + rc = PTR_ERR(priv->phy); + goto fail; } if ((rc = register_netdev(dev))) { -- cgit v1.1 From e7752ee280608a24e27f163641121bdc2c68d6af Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Mon, 21 Jun 2010 13:54:19 +0000 Subject: isdn/gigaset: honor CAPI application's buffer size request Fix the Gigaset CAPI driver to limit the length of a connection's payload data receive buffers to the corresponding CAPI application's data buffer size, as some real-life CAPI applications tend to be rather unhappy if they receive bigger data blocks than requested. Impact: bugfix Signed-off-by: Tilman Schmidt Signed-off-by: David S. Miller --- drivers/isdn/gigaset/asyncdata.c | 44 ++++++------------------ drivers/isdn/gigaset/capi.c | 8 +++++ drivers/isdn/gigaset/common.c | 32 +++++------------- drivers/isdn/gigaset/gigaset.h | 29 +++++++++++----- drivers/isdn/gigaset/i4l.c | 21 ++++++++++++ drivers/isdn/gigaset/isocdata.c | 72 ++++++++++++++-------------------------- 6 files changed, 94 insertions(+), 112 deletions(-) (limited to 'drivers') diff --git a/drivers/isdn/gigaset/asyncdata.c b/drivers/isdn/gigaset/asyncdata.c index c5016bd..c3b1dc3 100644 --- a/drivers/isdn/gigaset/asyncdata.c +++ b/drivers/isdn/gigaset/asyncdata.c @@ -126,26 +126,6 @@ static unsigned lock_loop(unsigned numbytes, struct inbuf_t *inbuf) return numbytes; } -/* set up next receive skb for data mode - */ -static void new_rcv_skb(struct bc_state *bcs) -{ - struct cardstate *cs = bcs->cs; - unsigned short hw_hdr_len = cs->hw_hdr_len; - - if (bcs->ignore) { - bcs->skb = NULL; - return; - } - - bcs->skb = dev_alloc_skb(SBUFSIZE + hw_hdr_len); - if (bcs->skb == NULL) { - dev_warn(cs->dev, "could not allocate new skb\n"); - return; - } - skb_reserve(bcs->skb, hw_hdr_len); -} - /* process a block of received bytes in HDLC data mode * (mstate != MS_LOCKED && !(inputstate & INS_command) && proto2 == L2_HDLC) * Collect HDLC frames, undoing byte stuffing and watching for DLE escapes. @@ -159,8 +139,8 @@ static unsigned hdlc_loop(unsigned numbytes, struct inbuf_t *inbuf) struct cardstate *cs = inbuf->cs; struct bc_state *bcs = cs->bcs; int inputstate = bcs->inputstate; - __u16 fcs = bcs->fcs; - struct sk_buff *skb = bcs->skb; + __u16 fcs = bcs->rx_fcs; + struct sk_buff *skb = bcs->rx_skb; unsigned char *src = inbuf->data + inbuf->head; unsigned procbytes = 0; unsigned char c; @@ -245,8 +225,7 @@ byte_stuff: /* prepare reception of next frame */ inputstate &= ~INS_have_data; - new_rcv_skb(bcs); - skb = bcs->skb; + skb = gigaset_new_rx_skb(bcs); } else { /* empty frame (7E 7E) */ #ifdef CONFIG_GIGASET_DEBUG @@ -255,8 +234,7 @@ byte_stuff: if (!skb) { /* skipped (?) */ gigaset_isdn_rcv_err(bcs); - new_rcv_skb(bcs); - skb = bcs->skb; + skb = gigaset_new_rx_skb(bcs); } } @@ -279,11 +257,11 @@ byte_stuff: #endif inputstate |= INS_have_data; if (skb) { - if (skb->len == SBUFSIZE) { + if (skb->len >= bcs->rx_bufsize) { dev_warn(cs->dev, "received packet too long\n"); dev_kfree_skb_any(skb); /* skip remainder of packet */ - bcs->skb = skb = NULL; + bcs->rx_skb = skb = NULL; } else { *__skb_put(skb, 1) = c; fcs = crc_ccitt_byte(fcs, c); @@ -292,7 +270,7 @@ byte_stuff: } bcs->inputstate = inputstate; - bcs->fcs = fcs; + bcs->rx_fcs = fcs; return procbytes; } @@ -308,18 +286,18 @@ static unsigned iraw_loop(unsigned numbytes, struct inbuf_t *inbuf) struct cardstate *cs = inbuf->cs; struct bc_state *bcs = cs->bcs; int inputstate = bcs->inputstate; - struct sk_buff *skb = bcs->skb; + struct sk_buff *skb = bcs->rx_skb; unsigned char *src = inbuf->data + inbuf->head; unsigned procbytes = 0; unsigned char c; if (!skb) { /* skip this block */ - new_rcv_skb(bcs); + gigaset_new_rx_skb(bcs); return numbytes; } - while (procbytes < numbytes && skb->len < SBUFSIZE) { + while (procbytes < numbytes && skb->len < bcs->rx_bufsize) { c = *src++; procbytes++; @@ -343,7 +321,7 @@ static unsigned iraw_loop(unsigned numbytes, struct inbuf_t *inbuf) if (inputstate & INS_have_data) { gigaset_skb_rcvd(bcs, skb); inputstate &= ~INS_have_data; - new_rcv_skb(bcs); + gigaset_new_rx_skb(bcs); } bcs->inputstate = inputstate; diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c index 8f78f15..245a608 100644 --- a/drivers/isdn/gigaset/capi.c +++ b/drivers/isdn/gigaset/capi.c @@ -80,6 +80,7 @@ struct gigaset_capi_appl { struct list_head ctrlist; struct gigaset_capi_appl *bcnext; u16 id; + struct capi_register_params rp; u16 nextMessageNumber; u32 listenInfoMask; u32 listenCIPmask; @@ -945,6 +946,7 @@ static void gigaset_register_appl(struct capi_ctr *ctr, u16 appl, return; } ap->id = appl; + ap->rp = *rp; list_add(&ap->ctrlist, &iif->appls); } @@ -1166,6 +1168,9 @@ static void do_connect_req(struct gigaset_capi_ctr *iif, } ap->bcnext = NULL; bcs->ap = ap; + bcs->rx_bufsize = ap->rp.datablklen; + dev_kfree_skb(bcs->rx_skb); + gigaset_new_rx_skb(bcs); cmsg->adr.adrPLCI |= (bcs->channel + 1) << 8; /* build command table */ @@ -1435,6 +1440,9 @@ static void do_connect_resp(struct gigaset_capi_ctr *iif, CapiCallGivenToOtherApplication); ap->bcnext = NULL; bcs->ap = ap; + bcs->rx_bufsize = ap->rp.datablklen; + dev_kfree_skb(bcs->rx_skb); + gigaset_new_rx_skb(bcs); bcs->chstate |= CHS_NOTIFY_LL; /* check/encode B channel protocol */ diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c index f6f45f2..9778fab 100644 --- a/drivers/isdn/gigaset/common.c +++ b/drivers/isdn/gigaset/common.c @@ -399,8 +399,8 @@ static void gigaset_freebcs(struct bc_state *bcs) gig_dbg(DEBUG_INIT, "clearing bcs[%d]->at_state", bcs->channel); clear_at_state(&bcs->at_state); gig_dbg(DEBUG_INIT, "freeing bcs[%d]->skb", bcs->channel); - dev_kfree_skb(bcs->skb); - bcs->skb = NULL; + dev_kfree_skb(bcs->rx_skb); + bcs->rx_skb = NULL; for (i = 0; i < AT_NUM; ++i) { kfree(bcs->commands[i]); @@ -634,19 +634,10 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs, bcs->emptycount = 0; #endif - gig_dbg(DEBUG_INIT, "allocating bcs[%d]->skb", channel); - bcs->fcs = PPP_INITFCS; + bcs->rx_bufsize = 0; + bcs->rx_skb = NULL; + bcs->rx_fcs = PPP_INITFCS; bcs->inputstate = 0; - if (cs->ignoreframes) { - bcs->skb = NULL; - } else { - bcs->skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len); - if (bcs->skb != NULL) - skb_reserve(bcs->skb, cs->hw_hdr_len); - else - pr_err("out of memory\n"); - } - bcs->channel = channel; bcs->cs = cs; @@ -663,11 +654,6 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs, return bcs; gig_dbg(DEBUG_INIT, " failed"); - - gig_dbg(DEBUG_INIT, " freeing bcs[%d]->skb", channel); - dev_kfree_skb(bcs->skb); - bcs->skb = NULL; - return NULL; } @@ -839,14 +825,12 @@ void gigaset_bcs_reinit(struct bc_state *bcs) bcs->emptycount = 0; #endif - bcs->fcs = PPP_INITFCS; + bcs->rx_fcs = PPP_INITFCS; bcs->chstate = 0; bcs->ignore = cs->ignoreframes; - if (bcs->ignore) { - dev_kfree_skb(bcs->skb); - bcs->skb = NULL; - } + dev_kfree_skb(bcs->rx_skb); + bcs->rx_skb = NULL; cs->ops->reinitbcshw(bcs); } diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h index 05947f9..f77ec54 100644 --- a/drivers/isdn/gigaset/gigaset.h +++ b/drivers/isdn/gigaset/gigaset.h @@ -45,10 +45,6 @@ #define MAX_EVENTS 64 /* size of event queue */ #define RBUFSIZE 8192 -#define SBUFSIZE 4096 /* sk_buff payload size */ - -#define TRANSBUFSIZE 768 /* bytes per skb for transparent receive */ -#define MAX_BUF_SIZE (SBUFSIZE - 2) /* Max. size of a data packet from LL */ /* compile time options */ #define GIG_MAJOR 0 @@ -380,8 +376,10 @@ struct bc_state { struct at_state_t at_state; - __u16 fcs; - struct sk_buff *skb; + /* receive buffer */ + unsigned rx_bufsize; /* max size accepted by application */ + struct sk_buff *rx_skb; + __u16 rx_fcs; int inputstate; /* see INS_XXXX */ int channel; @@ -801,8 +799,23 @@ static inline void gigaset_bchannel_up(struct bc_state *bcs) gigaset_schedule_event(bcs->cs); } -/* handling routines for sk_buff */ -/* ============================= */ +/* set up next receive skb for data mode */ +static inline struct sk_buff *gigaset_new_rx_skb(struct bc_state *bcs) +{ + struct cardstate *cs = bcs->cs; + unsigned short hw_hdr_len = cs->hw_hdr_len; + + if (bcs->ignore) { + bcs->rx_skb = NULL; + } else { + bcs->rx_skb = dev_alloc_skb(bcs->rx_bufsize + hw_hdr_len); + if (bcs->rx_skb == NULL) + dev_warn(cs->dev, "could not allocate skb\n"); + else + skb_reserve(bcs->rx_skb, hw_hdr_len); + } + return bcs->rx_skb; +} /* append received bytes to inbuf */ int gigaset_fill_inbuf(struct inbuf_t *inbuf, const unsigned char *src, diff --git a/drivers/isdn/gigaset/i4l.c b/drivers/isdn/gigaset/i4l.c index c22e5ac..f01c3c2 100644 --- a/drivers/isdn/gigaset/i4l.c +++ b/drivers/isdn/gigaset/i4l.c @@ -16,7 +16,10 @@ #include "gigaset.h" #include +#define SBUFSIZE 4096 /* sk_buff payload size */ +#define TRANSBUFSIZE 768 /* bytes per skb for transparent receive */ #define HW_HDR_LEN 2 /* Header size used to store ack info */ +#define MAX_BUF_SIZE (SBUFSIZE - HW_HDR_LEN) /* max data packet from LL */ /* == Handling of I4L IO =====================================================*/ @@ -231,6 +234,15 @@ static int command_from_LL(isdn_ctrl *cntrl) dev_err(cs->dev, "ISDN_CMD_DIAL: channel not free\n"); return -EBUSY; } + switch (bcs->proto2) { + case L2_HDLC: + bcs->rx_bufsize = SBUFSIZE; + break; + default: /* assume transparent */ + bcs->rx_bufsize = TRANSBUFSIZE; + } + dev_kfree_skb(bcs->rx_skb); + gigaset_new_rx_skb(bcs); commands = kzalloc(AT_NUM*(sizeof *commands), GFP_ATOMIC); if (!commands) { @@ -314,6 +326,15 @@ static int command_from_LL(isdn_ctrl *cntrl) return -EINVAL; } bcs = cs->bcs + ch; + switch (bcs->proto2) { + case L2_HDLC: + bcs->rx_bufsize = SBUFSIZE; + break; + default: /* assume transparent */ + bcs->rx_bufsize = TRANSBUFSIZE; + } + dev_kfree_skb(bcs->rx_skb); + gigaset_new_rx_skb(bcs); if (!gigaset_add_event(cs, &bcs->at_state, EV_ACCEPT, NULL, 0, NULL)) return -ENOMEM; diff --git a/drivers/isdn/gigaset/isocdata.c b/drivers/isdn/gigaset/isocdata.c index 16fd3bd..2dfd346 100644 --- a/drivers/isdn/gigaset/isocdata.c +++ b/drivers/isdn/gigaset/isocdata.c @@ -500,19 +500,18 @@ int gigaset_isoc_buildframe(struct bc_state *bcs, unsigned char *in, int len) */ static inline void hdlc_putbyte(unsigned char c, struct bc_state *bcs) { - bcs->fcs = crc_ccitt_byte(bcs->fcs, c); - if (unlikely(bcs->skb == NULL)) { + bcs->rx_fcs = crc_ccitt_byte(bcs->rx_fcs, c); + if (bcs->rx_skb == NULL) /* skipping */ return; - } - if (unlikely(bcs->skb->len == SBUFSIZE)) { + if (bcs->rx_skb->len >= bcs->rx_bufsize) { dev_warn(bcs->cs->dev, "received oversized packet discarded\n"); bcs->hw.bas->giants++; - dev_kfree_skb_any(bcs->skb); - bcs->skb = NULL; + dev_kfree_skb_any(bcs->rx_skb); + bcs->rx_skb = NULL; return; } - *__skb_put(bcs->skb, 1) = c; + *__skb_put(bcs->rx_skb, 1) = c; } /* hdlc_flush @@ -521,18 +520,13 @@ static inline void hdlc_putbyte(unsigned char c, struct bc_state *bcs) static inline void hdlc_flush(struct bc_state *bcs) { /* clear skb or allocate new if not skipping */ - if (likely(bcs->skb != NULL)) - skb_trim(bcs->skb, 0); - else if (!bcs->ignore) { - bcs->skb = dev_alloc_skb(SBUFSIZE + bcs->cs->hw_hdr_len); - if (bcs->skb) - skb_reserve(bcs->skb, bcs->cs->hw_hdr_len); - else - dev_err(bcs->cs->dev, "could not allocate skb\n"); - } + if (bcs->rx_skb != NULL) + skb_trim(bcs->rx_skb, 0); + else + gigaset_new_rx_skb(bcs); /* reset packet state */ - bcs->fcs = PPP_INITFCS; + bcs->rx_fcs = PPP_INITFCS; } /* hdlc_done @@ -549,7 +543,7 @@ static inline void hdlc_done(struct bc_state *bcs) hdlc_flush(bcs); return; } - procskb = bcs->skb; + procskb = bcs->rx_skb; if (procskb == NULL) { /* previous error */ gig_dbg(DEBUG_ISO, "%s: skb=NULL", __func__); @@ -560,8 +554,8 @@ static inline void hdlc_done(struct bc_state *bcs) bcs->hw.bas->runts++; dev_kfree_skb_any(procskb); gigaset_isdn_rcv_err(bcs); - } else if (bcs->fcs != PPP_GOODFCS) { - dev_notice(cs->dev, "frame check error (0x%04x)\n", bcs->fcs); + } else if (bcs->rx_fcs != PPP_GOODFCS) { + dev_notice(cs->dev, "frame check error\n"); bcs->hw.bas->fcserrs++; dev_kfree_skb_any(procskb); gigaset_isdn_rcv_err(bcs); @@ -574,13 +568,8 @@ static inline void hdlc_done(struct bc_state *bcs) bcs->hw.bas->goodbytes += len; gigaset_skb_rcvd(bcs, procskb); } - - bcs->skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len); - if (bcs->skb) - skb_reserve(bcs->skb, cs->hw_hdr_len); - else - dev_err(cs->dev, "could not allocate skb\n"); - bcs->fcs = PPP_INITFCS; + gigaset_new_rx_skb(bcs); + bcs->rx_fcs = PPP_INITFCS; } /* hdlc_frag @@ -597,8 +586,8 @@ static inline void hdlc_frag(struct bc_state *bcs, unsigned inbits) dev_notice(bcs->cs->dev, "received partial byte (%d bits)\n", inbits); bcs->hw.bas->alignerrs++; gigaset_isdn_rcv_err(bcs); - __skb_trim(bcs->skb, 0); - bcs->fcs = PPP_INITFCS; + __skb_trim(bcs->rx_skb, 0); + bcs->rx_fcs = PPP_INITFCS; } /* bit counts lookup table for HDLC bit unstuffing @@ -847,7 +836,6 @@ static inline void hdlc_unpack(unsigned char *src, unsigned count, static inline void trans_receive(unsigned char *src, unsigned count, struct bc_state *bcs) { - struct cardstate *cs = bcs->cs; struct sk_buff *skb; int dobytes; unsigned char *dst; @@ -857,17 +845,11 @@ static inline void trans_receive(unsigned char *src, unsigned count, hdlc_flush(bcs); return; } - skb = bcs->skb; - if (unlikely(skb == NULL)) { - bcs->skb = skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len); - if (!skb) { - dev_err(cs->dev, "could not allocate skb\n"); - return; - } - skb_reserve(skb, cs->hw_hdr_len); - } + skb = bcs->rx_skb; + if (skb == NULL) + skb = gigaset_new_rx_skb(bcs); bcs->hw.bas->goodbytes += skb->len; - dobytes = TRANSBUFSIZE - skb->len; + dobytes = bcs->rx_bufsize - skb->len; while (count > 0) { dst = skb_put(skb, count < dobytes ? count : dobytes); while (count > 0 && dobytes > 0) { @@ -879,14 +861,10 @@ static inline void trans_receive(unsigned char *src, unsigned count, dump_bytes(DEBUG_STREAM_DUMP, "rcv data", skb->data, skb->len); gigaset_skb_rcvd(bcs, skb); - bcs->skb = skb = - dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len); - if (!skb) { - dev_err(cs->dev, "could not allocate skb\n"); + skb = gigaset_new_rx_skb(bcs); + if (skb == NULL) return; - } - skb_reserve(skb, cs->hw_hdr_len); - dobytes = TRANSBUFSIZE; + dobytes = bcs->rx_bufsize; } } } -- cgit v1.1 From 278a582989ade4cb5335762d6c5999562018859d Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Mon, 21 Jun 2010 13:54:35 +0000 Subject: isdn/gigaset: correct CAPI voice connection encoding Make the Gigaset CAPI driver select L2_VOICE (AT^SBPR=2) as the layer 2 encoding for transparent connections, like the ISDN4Linux variant. L2_BITSYNC (AT^SBPR=0) mutes internal connections and distorts external ones. Impact: bugfix Signed-off-by: Tilman Schmidt Signed-off-by: David S. Miller --- drivers/isdn/gigaset/capi.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c index 245a608..cb55ead 100644 --- a/drivers/isdn/gigaset/capi.c +++ b/drivers/isdn/gigaset/capi.c @@ -1327,13 +1327,13 @@ static void do_connect_req(struct gigaset_capi_ctr *iif, bcs->proto2 = L2_HDLC; break; case 1: - bcs->proto2 = L2_BITSYNC; + bcs->proto2 = L2_VOICE; break; default: dev_warn(cs->dev, "B1 Protocol %u unsupported, using Transparent\n", cmsg->B1protocol); - bcs->proto2 = L2_BITSYNC; + bcs->proto2 = L2_VOICE; } if (cmsg->B2protocol != 1) dev_warn(cs->dev, @@ -1456,13 +1456,13 @@ static void do_connect_resp(struct gigaset_capi_ctr *iif, bcs->proto2 = L2_HDLC; break; case 1: - bcs->proto2 = L2_BITSYNC; + bcs->proto2 = L2_VOICE; break; default: dev_warn(cs->dev, "B1 Protocol %u unsupported, using Transparent\n", cmsg->B1protocol); - bcs->proto2 = L2_BITSYNC; + bcs->proto2 = L2_VOICE; } if (cmsg->B2protocol != 1) dev_warn(cs->dev, -- cgit v1.1 From 23b36778b4c82577746d26e4ac0ae66c6f462475 Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Mon, 21 Jun 2010 13:54:50 +0000 Subject: isdn/gigaset: correct CAPI DATA_B3 Delivery Confirmation The Gigaset CAPI driver handled all DATA_B3_REQ messages as if the Delivery Confirmation flag bit was set, delaying the emission of the DATA_B3_CONF reply until the data was actually transmitted. Some CAPI applications (notably Asterisk) aren't happy with that behaviour. Change it to actually evaluate the Delivery Confirmation flag as described the CAPI specification. Impact: bugfix Signed-off-by: Tilman Schmidt Signed-off-by: David S. Miller --- drivers/isdn/gigaset/capi.c | 83 ++++++++++++++++++++++++++++----------------- 1 file changed, 51 insertions(+), 32 deletions(-) (limited to 'drivers') diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c index cb55ead..e685123 100644 --- a/drivers/isdn/gigaset/capi.c +++ b/drivers/isdn/gigaset/capi.c @@ -320,6 +320,39 @@ static const char *format_ie(const char *ie) return result; } +/* + * emit DATA_B3_CONF message + */ +static void send_data_b3_conf(struct cardstate *cs, struct capi_ctr *ctr, + u16 appl, u16 msgid, int channel, + u16 handle, u16 info) +{ + struct sk_buff *cskb; + u8 *msg; + + cskb = alloc_skb(CAPI_DATA_B3_CONF_LEN, GFP_ATOMIC); + if (!cskb) { + dev_err(cs->dev, "%s: out of memory\n", __func__); + return; + } + /* frequent message, avoid _cmsg overhead */ + msg = __skb_put(cskb, CAPI_DATA_B3_CONF_LEN); + CAPIMSG_SETLEN(msg, CAPI_DATA_B3_CONF_LEN); + CAPIMSG_SETAPPID(msg, appl); + CAPIMSG_SETCOMMAND(msg, CAPI_DATA_B3); + CAPIMSG_SETSUBCOMMAND(msg, CAPI_CONF); + CAPIMSG_SETMSGID(msg, msgid); + CAPIMSG_SETCONTROLLER(msg, ctr->cnr); + CAPIMSG_SETPLCI_PART(msg, channel); + CAPIMSG_SETNCCI_PART(msg, 1); + CAPIMSG_SETHANDLE_CONF(msg, handle); + CAPIMSG_SETINFO_CONF(msg, info); + + /* emit message */ + dump_rawmsg(DEBUG_MCMD, __func__, msg); + capi_ctr_handle_message(ctr, appl, cskb); +} + /* * driver interface functions @@ -340,7 +373,6 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *dskb) struct gigaset_capi_ctr *iif = cs->iif; struct gigaset_capi_appl *ap = bcs->ap; unsigned char *req = skb_mac_header(dskb); - struct sk_buff *cskb; u16 flags; /* update statistics */ @@ -357,34 +389,17 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *dskb) return; } - /* ToDo: honor unset "delivery confirmation" bit */ + /* + * send DATA_B3_CONF if "delivery confirmation" bit was set in request; + * otherwise it has already been sent by do_data_b3_req() + */ flags = CAPIMSG_FLAGS(req); - - /* build DATA_B3_CONF message */ - cskb = alloc_skb(CAPI_DATA_B3_CONF_LEN, GFP_ATOMIC); - if (!cskb) { - dev_err(cs->dev, "%s: out of memory\n", __func__); - return; - } - /* frequent message, avoid _cmsg overhead */ - CAPIMSG_SETLEN(cskb->data, CAPI_DATA_B3_CONF_LEN); - CAPIMSG_SETAPPID(cskb->data, ap->id); - CAPIMSG_SETCOMMAND(cskb->data, CAPI_DATA_B3); - CAPIMSG_SETSUBCOMMAND(cskb->data, CAPI_CONF); - CAPIMSG_SETMSGID(cskb->data, CAPIMSG_MSGID(req)); - CAPIMSG_SETCONTROLLER(cskb->data, iif->ctr.cnr); - CAPIMSG_SETPLCI_PART(cskb->data, bcs->channel + 1); - CAPIMSG_SETNCCI_PART(cskb->data, 1); - CAPIMSG_SETHANDLE_CONF(cskb->data, CAPIMSG_HANDLE_REQ(req)); - if (flags & ~CAPI_FLAGS_DELIVERY_CONFIRMATION) - CAPIMSG_SETINFO_CONF(cskb->data, - CapiFlagsNotSupportedByProtocol); - else - CAPIMSG_SETINFO_CONF(cskb->data, CAPI_NOERROR); - - /* emit message */ - dump_rawmsg(DEBUG_LLDATA, "DATA_B3_CONF", cskb->data); - capi_ctr_handle_message(&iif->ctr, ap->id, cskb); + if (flags & CAPI_FLAGS_DELIVERY_CONFIRMATION) + send_data_b3_conf(cs, &iif->ctr, ap->id, CAPIMSG_MSGID(req), + bcs->channel + 1, CAPIMSG_HANDLE_REQ(req), + (flags & ~CAPI_FLAGS_DELIVERY_CONFIRMATION) ? + CapiFlagsNotSupportedByProtocol : + CAPI_NOERROR); } EXPORT_SYMBOL_GPL(gigaset_skb_sent); @@ -1795,6 +1810,8 @@ static void do_data_b3_req(struct gigaset_capi_ctr *iif, u16 msglen = CAPIMSG_LEN(skb->data); u16 datalen = CAPIMSG_DATALEN(skb->data); u16 flags = CAPIMSG_FLAGS(skb->data); + u16 msgid = CAPIMSG_MSGID(skb->data); + u16 handle = CAPIMSG_HANDLE_REQ(skb->data); /* frequent message, avoid _cmsg overhead */ dump_rawmsg(DEBUG_LLDATA, "DATA_B3_REQ", skb->data); @@ -1845,12 +1862,14 @@ static void do_data_b3_req(struct gigaset_capi_ctr *iif, return; } - /* DATA_B3_CONF reply will be sent by gigaset_skb_sent() */ - /* - * ToDo: honor unset "delivery confirmation" bit - * (send DATA_B3_CONF immediately?) + * DATA_B3_CONF will be sent by gigaset_skb_sent() only if "delivery + * confirmation" bit is set; otherwise we have to send it now */ + if (!(flags & CAPI_FLAGS_DELIVERY_CONFIRMATION)) + send_data_b3_conf(cs, &iif->ctr, ap->id, msgid, channel, handle, + flags ? CapiFlagsNotSupportedByProtocol + : CAPI_NOERROR); } /* -- cgit v1.1 From 1ce368ff288ed872a8fee93b8a2b7706111feb9a Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Mon, 21 Jun 2010 13:55:05 +0000 Subject: isdn/gigaset: encode HLC and BC together Adapt to buggy device firmware which accepts setting HLC only in the same command line as BC, by encoding HLC and BC in a single command if both are specified, and rejecting HLC without BC. Impact: bugfix Signed-off-by: Tilman Schmidt Signed-off-by: David S. Miller --- drivers/isdn/gigaset/capi.c | 81 +++++++++++++++++++++++++---------------- drivers/isdn/gigaset/ev-layer.c | 4 +- drivers/isdn/gigaset/gigaset.h | 5 +-- 3 files changed, 52 insertions(+), 38 deletions(-) (limited to 'drivers') diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c index e685123..665673f 100644 --- a/drivers/isdn/gigaset/capi.c +++ b/drivers/isdn/gigaset/capi.c @@ -1166,7 +1166,7 @@ static void do_connect_req(struct gigaset_capi_ctr *iif, char **commands; char *s; u8 *pp; - int i, l; + int i, l, lbc, lhlc; u16 info; /* decode message */ @@ -1293,42 +1293,59 @@ static void do_connect_req(struct gigaset_capi_ctr *iif, goto error; } - /* check/encode parameter: BC */ - if (cmsg->BC && cmsg->BC[0]) { - /* explicit BC overrides CIP */ - l = 2*cmsg->BC[0] + 7; + /* + * check/encode parameters: BC & HLC + * must be encoded together as device doesn't accept HLC separately + * explicit parameters override values derived from CIP + */ + + /* determine lengths */ + if (cmsg->BC && cmsg->BC[0]) /* BC specified explicitly */ + lbc = 2*cmsg->BC[0]; + else if (cip2bchlc[cmsg->CIPValue].bc) /* BC derived from CIP */ + lbc = strlen(cip2bchlc[cmsg->CIPValue].bc); + else /* no BC */ + lbc = 0; + if (cmsg->HLC && cmsg->HLC[0]) /* HLC specified explicitly */ + lhlc = 2*cmsg->HLC[0]; + else if (cip2bchlc[cmsg->CIPValue].hlc) /* HLC derived from CIP */ + lhlc = strlen(cip2bchlc[cmsg->CIPValue].hlc); + else /* no HLC */ + lhlc = 0; + + if (lbc) { + /* have BC: allocate and assemble command string */ + l = lbc + 7; /* "^SBC=" + value + "\r" + null byte */ + if (lhlc) + l += lhlc + 7; /* ";^SHLC=" + value */ commands[AT_BC] = kmalloc(l, GFP_KERNEL); if (!commands[AT_BC]) goto oom; strcpy(commands[AT_BC], "^SBC="); - decode_ie(cmsg->BC, commands[AT_BC]+5); + if (cmsg->BC && cmsg->BC[0]) /* BC specified explicitly */ + decode_ie(cmsg->BC, commands[AT_BC] + 5); + else /* BC derived from CIP */ + strcpy(commands[AT_BC] + 5, + cip2bchlc[cmsg->CIPValue].bc); + if (lhlc) { + strcpy(commands[AT_BC] + lbc + 5, ";^SHLC="); + if (cmsg->HLC && cmsg->HLC[0]) + /* HLC specified explicitly */ + decode_ie(cmsg->HLC, + commands[AT_BC] + lbc + 12); + else /* HLC derived from CIP */ + strcpy(commands[AT_BC] + lbc + 12, + cip2bchlc[cmsg->CIPValue].hlc); + } strcpy(commands[AT_BC] + l - 2, "\r"); - } else if (cip2bchlc[cmsg->CIPValue].bc) { - l = strlen(cip2bchlc[cmsg->CIPValue].bc) + 7; - commands[AT_BC] = kmalloc(l, GFP_KERNEL); - if (!commands[AT_BC]) - goto oom; - snprintf(commands[AT_BC], l, "^SBC=%s\r", - cip2bchlc[cmsg->CIPValue].bc); - } - - /* check/encode parameter: HLC */ - if (cmsg->HLC && cmsg->HLC[0]) { - /* explicit HLC overrides CIP */ - l = 2*cmsg->HLC[0] + 7; - commands[AT_HLC] = kmalloc(l, GFP_KERNEL); - if (!commands[AT_HLC]) - goto oom; - strcpy(commands[AT_HLC], "^SHLC="); - decode_ie(cmsg->HLC, commands[AT_HLC]+5); - strcpy(commands[AT_HLC] + l - 2, "\r"); - } else if (cip2bchlc[cmsg->CIPValue].hlc) { - l = strlen(cip2bchlc[cmsg->CIPValue].hlc) + 7; - commands[AT_HLC] = kmalloc(l, GFP_KERNEL); - if (!commands[AT_HLC]) - goto oom; - snprintf(commands[AT_HLC], l, "^SHLC=%s\r", - cip2bchlc[cmsg->CIPValue].hlc); + } else { + /* no BC */ + if (lhlc) { + dev_notice(cs->dev, "%s: cannot set HLC without BC\n", + "CONNECT_REQ"); + info = CapiIllMessageParmCoding; /* ? */ + goto error; + } } /* check/encode parameter: B Protocol */ diff --git a/drivers/isdn/gigaset/ev-layer.c b/drivers/isdn/gigaset/ev-layer.c index 206c380..ceaef9a 100644 --- a/drivers/isdn/gigaset/ev-layer.c +++ b/drivers/isdn/gigaset/ev-layer.c @@ -282,9 +282,7 @@ struct reply_t gigaset_tab_cid[] = /* dial */ {EV_DIAL, -1, -1, -1, -1, -1, {ACT_DIAL} }, {RSP_INIT, 0, 0, SEQ_DIAL, 601, 5, {ACT_CMD+AT_BC} }, -{RSP_OK, 601, 601, -1, 602, 5, {ACT_CMD+AT_HLC} }, -{RSP_NULL, 602, 602, -1, 603, 5, {ACT_CMD+AT_PROTO} }, -{RSP_OK, 602, 602, -1, 603, 5, {ACT_CMD+AT_PROTO} }, +{RSP_OK, 601, 601, -1, 603, 5, {ACT_CMD+AT_PROTO} }, {RSP_OK, 603, 603, -1, 604, 5, {ACT_CMD+AT_TYPE} }, {RSP_OK, 604, 604, -1, 605, 5, {ACT_CMD+AT_MSN} }, {RSP_NULL, 605, 605, -1, 606, 5, {ACT_CMD+AT_CLIP} }, diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h index f77ec54..c4e6c26 100644 --- a/drivers/isdn/gigaset/gigaset.h +++ b/drivers/isdn/gigaset/gigaset.h @@ -186,10 +186,9 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg, #define AT_BC 3 #define AT_PROTO 4 #define AT_TYPE 5 -#define AT_HLC 6 -#define AT_CLIP 7 +#define AT_CLIP 6 /* total number */ -#define AT_NUM 8 +#define AT_NUM 7 /* variables in struct at_state_t */ #define VAR_ZSAU 0 -- cgit v1.1 From 1b4843c5e8cbab86830da8a53b8288882060c059 Mon Sep 17 00:00:00 2001 From: Tilman Schmidt Date: Mon, 21 Jun 2010 13:55:20 +0000 Subject: isdn/gigaset: correct CAPI connection state storage CAPI applications can handle several connections in parallel, so one connection state per application isn't sufficient. Store the connection state in the channel structure instead. Impact: bugfix Signed-off-by: Tilman Schmidt Signed-off-by: David S. Miller --- drivers/isdn/gigaset/capi.c | 225 +++++++++++++++++++++++++++++++---------- drivers/isdn/gigaset/common.c | 4 + drivers/isdn/gigaset/gigaset.h | 4 +- 3 files changed, 180 insertions(+), 53 deletions(-) (limited to 'drivers') diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c index 665673f..6fbe899 100644 --- a/drivers/isdn/gigaset/capi.c +++ b/drivers/isdn/gigaset/capi.c @@ -70,7 +70,7 @@ #define MAX_NUMBER_DIGITS 20 #define MAX_FMT_IE_LEN 20 -/* values for gigaset_capi_appl.connected */ +/* values for bcs->apconnstate */ #define APCONN_NONE 0 /* inactive/listening */ #define APCONN_SETUP 1 /* connecting */ #define APCONN_ACTIVE 2 /* B channel up */ @@ -84,7 +84,6 @@ struct gigaset_capi_appl { u16 nextMessageNumber; u32 listenInfoMask; u32 listenCIPmask; - int connected; }; /* CAPI specific controller data structure */ @@ -384,7 +383,7 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *dskb) } /* don't send further B3 messages if disconnected */ - if (ap->connected < APCONN_ACTIVE) { + if (bcs->apconnstate < APCONN_ACTIVE) { gig_dbg(DEBUG_LLDATA, "disconnected, discarding ack"); return; } @@ -428,7 +427,7 @@ void gigaset_skb_rcvd(struct bc_state *bcs, struct sk_buff *skb) } /* don't send further B3 messages if disconnected */ - if (ap->connected < APCONN_ACTIVE) { + if (bcs->apconnstate < APCONN_ACTIVE) { gig_dbg(DEBUG_LLDATA, "disconnected, discarding data"); dev_kfree_skb_any(skb); return; @@ -500,6 +499,7 @@ int gigaset_isdn_icall(struct at_state_t *at_state) u32 actCIPmask; struct sk_buff *skb; unsigned int msgsize; + unsigned long flags; int i; /* @@ -624,7 +624,14 @@ int gigaset_isdn_icall(struct at_state_t *at_state) format_ie(iif->hcmsg.CalledPartyNumber)); /* scan application list for matching listeners */ - bcs->ap = NULL; + spin_lock_irqsave(&bcs->aplock, flags); + if (bcs->ap != NULL || bcs->apconnstate != APCONN_NONE) { + dev_warn(cs->dev, "%s: channel not properly cleared (%p/%d)\n", + __func__, bcs->ap, bcs->apconnstate); + bcs->ap = NULL; + bcs->apconnstate = APCONN_NONE; + } + spin_unlock_irqrestore(&bcs->aplock, flags); actCIPmask = 1 | (1 << iif->hcmsg.CIPValue); list_for_each_entry(ap, &iif->appls, ctrlist) if (actCIPmask & ap->listenCIPmask) { @@ -642,10 +649,12 @@ int gigaset_isdn_icall(struct at_state_t *at_state) dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg); /* add to listeners on this B channel, update state */ + spin_lock_irqsave(&bcs->aplock, flags); ap->bcnext = bcs->ap; bcs->ap = ap; bcs->chstate |= CHS_NOTIFY_LL; - ap->connected = APCONN_SETUP; + bcs->apconnstate = APCONN_SETUP; + spin_unlock_irqrestore(&bcs->aplock, flags); /* emit message */ capi_ctr_handle_message(&iif->ctr, ap->id, skb); @@ -670,7 +679,7 @@ static void send_disconnect_ind(struct bc_state *bcs, struct gigaset_capi_ctr *iif = cs->iif; struct sk_buff *skb; - if (ap->connected == APCONN_NONE) + if (bcs->apconnstate == APCONN_NONE) return; capi_cmsg_header(&iif->hcmsg, ap->id, CAPI_DISCONNECT, CAPI_IND, @@ -684,7 +693,6 @@ static void send_disconnect_ind(struct bc_state *bcs, } capi_cmsg2message(&iif->hcmsg, __skb_put(skb, CAPI_DISCONNECT_IND_LEN)); dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg); - ap->connected = APCONN_NONE; capi_ctr_handle_message(&iif->ctr, ap->id, skb); } @@ -701,9 +709,9 @@ static void send_disconnect_b3_ind(struct bc_state *bcs, struct sk_buff *skb; /* nothing to do if no logical connection active */ - if (ap->connected < APCONN_ACTIVE) + if (bcs->apconnstate < APCONN_ACTIVE) return; - ap->connected = APCONN_SETUP; + bcs->apconnstate = APCONN_SETUP; capi_cmsg_header(&iif->hcmsg, ap->id, CAPI_DISCONNECT_B3, CAPI_IND, ap->nextMessageNumber++, @@ -730,14 +738,25 @@ void gigaset_isdn_connD(struct bc_state *bcs) { struct cardstate *cs = bcs->cs; struct gigaset_capi_ctr *iif = cs->iif; - struct gigaset_capi_appl *ap = bcs->ap; + struct gigaset_capi_appl *ap; struct sk_buff *skb; unsigned int msgsize; + unsigned long flags; + spin_lock_irqsave(&bcs->aplock, flags); + ap = bcs->ap; if (!ap) { + spin_unlock_irqrestore(&bcs->aplock, flags); dev_err(cs->dev, "%s: no application\n", __func__); return; } + if (bcs->apconnstate == APCONN_NONE) { + spin_unlock_irqrestore(&bcs->aplock, flags); + dev_warn(cs->dev, "%s: application %u not connected\n", + __func__, ap->id); + return; + } + spin_unlock_irqrestore(&bcs->aplock, flags); while (ap->bcnext) { /* this should never happen */ dev_warn(cs->dev, "%s: dropping extra application %u\n", @@ -746,11 +765,6 @@ void gigaset_isdn_connD(struct bc_state *bcs) CapiCallGivenToOtherApplication); ap->bcnext = ap->bcnext->bcnext; } - if (ap->connected == APCONN_NONE) { - dev_warn(cs->dev, "%s: application %u not connected\n", - __func__, ap->id); - return; - } /* prepare CONNECT_ACTIVE_IND message * Note: LLC not supported by device @@ -788,17 +802,24 @@ void gigaset_isdn_connD(struct bc_state *bcs) void gigaset_isdn_hupD(struct bc_state *bcs) { struct gigaset_capi_appl *ap; + unsigned long flags; /* * ToDo: pass on reason code reported by device * (requires ev-layer state machine extension to collect * ZCAU device reply) */ - for (ap = bcs->ap; ap != NULL; ap = ap->bcnext) { + spin_lock_irqsave(&bcs->aplock, flags); + while (bcs->ap != NULL) { + ap = bcs->ap; + bcs->ap = ap->bcnext; + spin_unlock_irqrestore(&bcs->aplock, flags); send_disconnect_b3_ind(bcs, ap); send_disconnect_ind(bcs, ap, 0); + spin_lock_irqsave(&bcs->aplock, flags); } - bcs->ap = NULL; + bcs->apconnstate = APCONN_NONE; + spin_unlock_irqrestore(&bcs->aplock, flags); } /** @@ -812,24 +833,21 @@ void gigaset_isdn_connB(struct bc_state *bcs) { struct cardstate *cs = bcs->cs; struct gigaset_capi_ctr *iif = cs->iif; - struct gigaset_capi_appl *ap = bcs->ap; + struct gigaset_capi_appl *ap; struct sk_buff *skb; + unsigned long flags; unsigned int msgsize; u8 command; + spin_lock_irqsave(&bcs->aplock, flags); + ap = bcs->ap; if (!ap) { + spin_unlock_irqrestore(&bcs->aplock, flags); dev_err(cs->dev, "%s: no application\n", __func__); return; } - while (ap->bcnext) { - /* this should never happen */ - dev_warn(cs->dev, "%s: dropping extra application %u\n", - __func__, ap->bcnext->id); - send_disconnect_ind(bcs, ap->bcnext, - CapiCallGivenToOtherApplication); - ap->bcnext = ap->bcnext->bcnext; - } - if (!ap->connected) { + if (!bcs->apconnstate) { + spin_unlock_irqrestore(&bcs->aplock, flags); dev_warn(cs->dev, "%s: application %u not connected\n", __func__, ap->id); return; @@ -841,13 +859,26 @@ void gigaset_isdn_connB(struct bc_state *bcs) * CONNECT_B3_ACTIVE_IND in reply to CONNECT_B3_RESP * Parameters in both cases always: NCCI = 1, NCPI empty */ - if (ap->connected >= APCONN_ACTIVE) { + if (bcs->apconnstate >= APCONN_ACTIVE) { command = CAPI_CONNECT_B3_ACTIVE; msgsize = CAPI_CONNECT_B3_ACTIVE_IND_BASELEN; } else { command = CAPI_CONNECT_B3; msgsize = CAPI_CONNECT_B3_IND_BASELEN; } + bcs->apconnstate = APCONN_ACTIVE; + + spin_unlock_irqrestore(&bcs->aplock, flags); + + while (ap->bcnext) { + /* this should never happen */ + dev_warn(cs->dev, "%s: dropping extra application %u\n", + __func__, ap->bcnext->id); + send_disconnect_ind(bcs, ap->bcnext, + CapiCallGivenToOtherApplication); + ap->bcnext = ap->bcnext->bcnext; + } + capi_cmsg_header(&iif->hcmsg, ap->id, command, CAPI_IND, ap->nextMessageNumber++, iif->ctr.cnr | ((bcs->channel + 1) << 8) | (1 << 16)); @@ -858,7 +889,6 @@ void gigaset_isdn_connB(struct bc_state *bcs) } capi_cmsg2message(&iif->hcmsg, __skb_put(skb, msgsize)); dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg); - ap->connected = APCONN_ACTIVE; capi_ctr_handle_message(&iif->ctr, ap->id, skb); } @@ -964,6 +994,61 @@ static void gigaset_register_appl(struct capi_ctr *ctr, u16 appl, ap->rp = *rp; list_add(&ap->ctrlist, &iif->appls); + dev_info(cs->dev, "application %u registered\n", ap->id); +} + +/* + * remove CAPI application from channel + * helper function to keep indentation levels down and stay in 80 columns + */ + +static inline void remove_appl_from_channel(struct bc_state *bcs, + struct gigaset_capi_appl *ap) +{ + struct cardstate *cs = bcs->cs; + struct gigaset_capi_appl *bcap; + unsigned long flags; + int prevconnstate; + + spin_lock_irqsave(&bcs->aplock, flags); + bcap = bcs->ap; + if (bcap == NULL) { + spin_unlock_irqrestore(&bcs->aplock, flags); + return; + } + + /* check first application on channel */ + if (bcap == ap) { + bcs->ap = ap->bcnext; + if (bcs->ap != NULL) { + spin_unlock_irqrestore(&bcs->aplock, flags); + return; + } + + /* none left, clear channel state */ + prevconnstate = bcs->apconnstate; + bcs->apconnstate = APCONN_NONE; + spin_unlock_irqrestore(&bcs->aplock, flags); + + if (prevconnstate == APCONN_ACTIVE) { + dev_notice(cs->dev, "%s: hanging up channel %u\n", + __func__, bcs->channel); + gigaset_add_event(cs, &bcs->at_state, + EV_HUP, NULL, 0, NULL); + gigaset_schedule_event(cs); + } + return; + } + + /* check remaining list */ + do { + if (bcap->bcnext == ap) { + bcap->bcnext = bcap->bcnext->bcnext; + return; + } + bcap = bcap->bcnext; + } while (bcap != NULL); + spin_unlock_irqrestore(&bcs->aplock, flags); } /* @@ -975,19 +1060,19 @@ static void gigaset_release_appl(struct capi_ctr *ctr, u16 appl) = container_of(ctr, struct gigaset_capi_ctr, ctr); struct cardstate *cs = iif->ctr.driverdata; struct gigaset_capi_appl *ap, *tmp; + unsigned ch; list_for_each_entry_safe(ap, tmp, &iif->appls, ctrlist) if (ap->id == appl) { - if (ap->connected != APCONN_NONE) { - dev_err(cs->dev, - "%s: application %u still connected\n", - __func__, ap->id); - /* ToDo: clear active connection */ - } + /* remove from any channels */ + for (ch = 0; ch < cs->channels; ch++) + remove_appl_from_channel(&cs->bcs[ch], ap); + + /* remove from registration list */ list_del(&ap->ctrlist); kfree(ap); + dev_info(cs->dev, "application %u released\n", appl); } - } /* @@ -1166,6 +1251,7 @@ static void do_connect_req(struct gigaset_capi_ctr *iif, char **commands; char *s; u8 *pp; + unsigned long flags; int i, l, lbc, lhlc; u16 info; @@ -1181,8 +1267,15 @@ static void do_connect_req(struct gigaset_capi_ctr *iif, send_conf(iif, ap, skb, CapiNoPlciAvailable); return; } + spin_lock_irqsave(&bcs->aplock, flags); + if (bcs->ap != NULL || bcs->apconnstate != APCONN_NONE) + dev_warn(cs->dev, "%s: channel not properly cleared (%p/%d)\n", + __func__, bcs->ap, bcs->apconnstate); ap->bcnext = NULL; bcs->ap = ap; + bcs->apconnstate = APCONN_SETUP; + spin_unlock_irqrestore(&bcs->aplock, flags); + bcs->rx_bufsize = ap->rp.datablklen; dev_kfree_skb(bcs->rx_skb); gigaset_new_rx_skb(bcs); @@ -1419,7 +1512,6 @@ static void do_connect_req(struct gigaset_capi_ctr *iif, goto error; } gigaset_schedule_event(cs); - ap->connected = APCONN_SETUP; send_conf(iif, ap, skb, CapiSuccess); return; @@ -1447,6 +1539,7 @@ static void do_connect_resp(struct gigaset_capi_ctr *iif, _cmsg *cmsg = &iif->acmsg; struct bc_state *bcs; struct gigaset_capi_appl *oap; + unsigned long flags; int channel; /* decode message */ @@ -1466,12 +1559,21 @@ static void do_connect_resp(struct gigaset_capi_ctr *iif, switch (cmsg->Reject) { case 0: /* Accept */ /* drop all competing applications, keep only this one */ - for (oap = bcs->ap; oap != NULL; oap = oap->bcnext) - if (oap != ap) + spin_lock_irqsave(&bcs->aplock, flags); + while (bcs->ap != NULL) { + oap = bcs->ap; + bcs->ap = oap->bcnext; + if (oap != ap) { + spin_unlock_irqrestore(&bcs->aplock, flags); send_disconnect_ind(bcs, oap, CapiCallGivenToOtherApplication); + spin_lock_irqsave(&bcs->aplock, flags); + } + } ap->bcnext = NULL; bcs->ap = ap; + spin_unlock_irqrestore(&bcs->aplock, flags); + bcs->rx_bufsize = ap->rp.datablklen; dev_kfree_skb(bcs->rx_skb); gigaset_new_rx_skb(bcs); @@ -1542,31 +1644,45 @@ static void do_connect_resp(struct gigaset_capi_ctr *iif, send_disconnect_ind(bcs, ap, 0); /* remove it from the list of listening apps */ + spin_lock_irqsave(&bcs->aplock, flags); if (bcs->ap == ap) { bcs->ap = ap->bcnext; - if (bcs->ap == NULL) + if (bcs->ap == NULL) { /* last one: stop ev-layer hupD notifications */ + bcs->apconnstate = APCONN_NONE; bcs->chstate &= ~CHS_NOTIFY_LL; + } + spin_unlock_irqrestore(&bcs->aplock, flags); return; } for (oap = bcs->ap; oap != NULL; oap = oap->bcnext) { if (oap->bcnext == ap) { oap->bcnext = oap->bcnext->bcnext; + spin_unlock_irqrestore(&bcs->aplock, flags); return; } } + spin_unlock_irqrestore(&bcs->aplock, flags); dev_err(cs->dev, "%s: application %u not found\n", __func__, ap->id); return; default: /* Reject */ /* drop all competing applications, keep only this one */ - for (oap = bcs->ap; oap != NULL; oap = oap->bcnext) - if (oap != ap) + spin_lock_irqsave(&bcs->aplock, flags); + while (bcs->ap != NULL) { + oap = bcs->ap; + bcs->ap = oap->bcnext; + if (oap != ap) { + spin_unlock_irqrestore(&bcs->aplock, flags); send_disconnect_ind(bcs, oap, CapiCallGivenToOtherApplication); + spin_lock_irqsave(&bcs->aplock, flags); + } + } ap->bcnext = NULL; bcs->ap = ap; + spin_unlock_irqrestore(&bcs->aplock, flags); /* reject call - will trigger DISCONNECT_IND for this app */ dev_info(cs->dev, "%s: Reject=%x\n", @@ -1589,6 +1705,7 @@ static void do_connect_b3_req(struct gigaset_capi_ctr *iif, { struct cardstate *cs = iif->ctr.driverdata; _cmsg *cmsg = &iif->acmsg; + struct bc_state *bcs; int channel; /* decode message */ @@ -1603,9 +1720,10 @@ static void do_connect_b3_req(struct gigaset_capi_ctr *iif, send_conf(iif, ap, skb, CapiIllContrPlciNcci); return; } + bcs = &cs->bcs[channel-1]; /* mark logical connection active */ - ap->connected = APCONN_ACTIVE; + bcs->apconnstate = APCONN_ACTIVE; /* build NCCI: always 1 (one B3 connection only) */ cmsg->adr.adrNCCI |= 1 << 16; @@ -1651,7 +1769,7 @@ static void do_connect_b3_resp(struct gigaset_capi_ctr *iif, if (cmsg->Reject) { /* Reject: clear B3 connect received flag */ - ap->connected = APCONN_SETUP; + bcs->apconnstate = APCONN_SETUP; /* trigger hangup, causing eventual DISCONNECT_IND */ if (!gigaset_add_event(cs, &bcs->at_state, @@ -1723,11 +1841,11 @@ static void do_disconnect_req(struct gigaset_capi_ctr *iif, } /* skip if DISCONNECT_IND already sent */ - if (!ap->connected) + if (!bcs->apconnstate) return; /* check for active logical connection */ - if (ap->connected >= APCONN_ACTIVE) { + if (bcs->apconnstate >= APCONN_ACTIVE) { /* * emit DISCONNECT_B3_IND with cause 0x3301 * use separate cmsg structure, as the content of iif->acmsg @@ -1776,6 +1894,7 @@ static void do_disconnect_b3_req(struct gigaset_capi_ctr *iif, { struct cardstate *cs = iif->ctr.driverdata; _cmsg *cmsg = &iif->acmsg; + struct bc_state *bcs; int channel; /* decode message */ @@ -1791,17 +1910,17 @@ static void do_disconnect_b3_req(struct gigaset_capi_ctr *iif, send_conf(iif, ap, skb, CapiIllContrPlciNcci); return; } + bcs = &cs->bcs[channel-1]; /* reject if logical connection not active */ - if (ap->connected < APCONN_ACTIVE) { + if (bcs->apconnstate < APCONN_ACTIVE) { send_conf(iif, ap, skb, CapiMessageNotSupportedInCurrentState); return; } /* trigger hangup, causing eventual DISCONNECT_B3_IND */ - if (!gigaset_add_event(cs, &cs->bcs[channel-1].at_state, - EV_HUP, NULL, 0, NULL)) { + if (!gigaset_add_event(cs, &bcs->at_state, EV_HUP, NULL, 0, NULL)) { send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR); return; } @@ -1822,6 +1941,7 @@ static void do_data_b3_req(struct gigaset_capi_ctr *iif, struct sk_buff *skb) { struct cardstate *cs = iif->ctr.driverdata; + struct bc_state *bcs; int channel = CAPIMSG_PLCI_PART(skb->data); u16 ncci = CAPIMSG_NCCI_PART(skb->data); u16 msglen = CAPIMSG_LEN(skb->data); @@ -1844,6 +1964,7 @@ static void do_data_b3_req(struct gigaset_capi_ctr *iif, send_conf(iif, ap, skb, CapiIllContrPlciNcci); return; } + bcs = &cs->bcs[channel-1]; if (msglen != CAPI_DATA_B3_REQ_LEN && msglen != CAPI_DATA_B3_REQ_LEN64) dev_notice(cs->dev, "%s: unexpected length %d\n", "DATA_B3_REQ", msglen); @@ -1863,7 +1984,7 @@ static void do_data_b3_req(struct gigaset_capi_ctr *iif, } /* reject if logical connection not active */ - if (ap->connected < APCONN_ACTIVE) { + if (bcs->apconnstate < APCONN_ACTIVE) { send_conf(iif, ap, skb, CapiMessageNotSupportedInCurrentState); return; } @@ -1874,7 +1995,7 @@ static void do_data_b3_req(struct gigaset_capi_ctr *iif, skb_pull(skb, msglen); /* pass to device-specific module */ - if (cs->ops->send_skb(&cs->bcs[channel-1], skb) < 0) { + if (cs->ops->send_skb(bcs, skb) < 0) { send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR); return; } diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c index 9778fab..5d4befb 100644 --- a/drivers/isdn/gigaset/common.c +++ b/drivers/isdn/gigaset/common.c @@ -649,6 +649,10 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs, for (i = 0; i < AT_NUM; ++i) bcs->commands[i] = NULL; + spin_lock_init(&bcs->aplock); + bcs->ap = NULL; + bcs->apconnstate = 0; + gig_dbg(DEBUG_INIT, " setting up bcs[%d]->hw", channel); if (cs->ops->initbcshw(bcs)) return bcs; diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h index c4e6c26..8738b08 100644 --- a/drivers/isdn/gigaset/gigaset.h +++ b/drivers/isdn/gigaset/gigaset.h @@ -403,7 +403,9 @@ struct bc_state { struct bas_bc_state *bas; /* usb hardware driver (base) */ } hw; - void *ap; /* LL application structure */ + void *ap; /* associated LL application */ + int apconnstate; /* LL application connection state */ + spinlock_t aplock; }; struct cardstate { -- cgit v1.1 From cc413d9097dfc6237f37dcaf52346db1061a6119 Mon Sep 17 00:00:00 2001 From: Michal Schmidt Date: Thu, 24 Jun 2010 04:13:44 +0000 Subject: vxge: fix memory leak in vxge_alloc_msix() error path When pci_enable_msix() returned ret<0, entries and vxge_entries were leaked. While at it, use the centralized exit idiom in the function. Signed-off-by: Michal Schmidt Acked-by: Ram Vepa Signed-off-by: David S. Miller --- drivers/net/vxge/vxge-main.c | 29 ++++++++++++++++++++--------- 1 file changed, 20 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/net/vxge/vxge-main.c b/drivers/net/vxge/vxge-main.c index b504bd5..d14e207 100644 --- a/drivers/net/vxge/vxge-main.c +++ b/drivers/net/vxge/vxge-main.c @@ -2262,7 +2262,8 @@ start: vxge_debug_init(VXGE_ERR, "%s: memory allocation failed", VXGE_DRIVER_NAME); - return -ENOMEM; + ret = -ENOMEM; + goto alloc_entries_failed; } vdev->vxge_entries = @@ -2271,8 +2272,8 @@ start: if (!vdev->vxge_entries) { vxge_debug_init(VXGE_ERR, "%s: memory allocation failed", VXGE_DRIVER_NAME); - kfree(vdev->entries); - return -ENOMEM; + ret = -ENOMEM; + goto alloc_vxge_entries_failed; } for (i = 0, j = 0; i < vdev->no_of_vpath; i++) { @@ -2303,22 +2304,32 @@ start: vxge_debug_init(VXGE_ERR, "%s: MSI-X enable failed for %d vectors, ret: %d", VXGE_DRIVER_NAME, vdev->intr_cnt, ret); + if ((max_config_vpath != VXGE_USE_DEFAULT) || (ret < 3)) { + ret = -ENODEV; + goto enable_msix_failed; + } + kfree(vdev->entries); kfree(vdev->vxge_entries); vdev->entries = NULL; vdev->vxge_entries = NULL; - - if ((max_config_vpath != VXGE_USE_DEFAULT) || (ret < 3)) - return -ENODEV; /* Try with less no of vector by reducing no of vpaths count */ temp = (ret - 1)/2; vxge_close_vpaths(vdev, temp); vdev->no_of_vpath = temp; goto start; - } else if (ret < 0) - return -ENODEV; - + } else if (ret < 0) { + ret = -ENODEV; + goto enable_msix_failed; + } return 0; + +enable_msix_failed: + kfree(vdev->vxge_entries); +alloc_vxge_entries_failed: + kfree(vdev->entries); +alloc_entries_failed: + return ret; } static int vxge_enable_msix(struct vxgedev *vdev) -- cgit v1.1 From d41de3c10047d5f0b661593a8f4610a19f87621f Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Tue, 22 Jun 2010 01:41:36 +0000 Subject: ISDN: hysdn, fix potential NULL dereference Stanse found that lp is dereferenced earlier than checked for being NULL in hysdn_rx_netpkt. Move the initialization below the test. Signed-off-by: Jiri Slaby Cc: Karsten Keil Cc: "David S. Miller" Cc: Stephen Hemminger Cc: Patrick McHardy Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller --- drivers/isdn/hysdn/hysdn_net.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/isdn/hysdn/hysdn_net.c b/drivers/isdn/hysdn/hysdn_net.c index 72eb926..feec8d8 100644 --- a/drivers/isdn/hysdn/hysdn_net.c +++ b/drivers/isdn/hysdn/hysdn_net.c @@ -187,12 +187,13 @@ void hysdn_rx_netpkt(hysdn_card * card, unsigned char *buf, unsigned short len) { struct net_local *lp = card->netif; - struct net_device *dev = lp->dev; + struct net_device *dev; struct sk_buff *skb; if (!lp) return; /* non existing device */ + dev = lp->dev; dev->stats.rx_bytes += len; skb = dev_alloc_skb(len); -- cgit v1.1 From e2f5b04563786d4b7d7648868de7e941a0649372 Mon Sep 17 00:00:00 2001 From: David Woodhouse Date: Tue, 22 Jun 2010 02:38:13 +0000 Subject: phylib: Add autoload support for the LXT973 phy. Commit e13647c1 (phylib: Add support for the LXT973 phy.) added a new ID but neglected to also add it to the MODULE_DEVICE_TABLE. Signed-off-by: David Woodhouse Signed-off-by: David S. Miller --- drivers/net/phy/lxt.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/phy/lxt.c b/drivers/net/phy/lxt.c index dbd0034..29c39ff 100644 --- a/drivers/net/phy/lxt.c +++ b/drivers/net/phy/lxt.c @@ -226,6 +226,7 @@ module_exit(lxt_exit); static struct mdio_device_id lxt_tbl[] = { { 0x78100000, 0xfffffff0 }, { 0x001378e0, 0xfffffff0 }, + { 0x00137a10, 0xfffffff0 }, { } }; -- cgit v1.1 From 4ef09889d7b4c7be2aa3e132efb77029f51c95b7 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 30 Mar 2010 02:52:33 +0900 Subject: v4l-dvb: update gfp/slab.h includes Implicit slab.h inclusion via percpu.h is about to go away. Make sure gfp.h or slab.h is included as necessary. Signed-off-by: Tejun Heo Cc: Stephen Rothwell Cc: Mauro Carvalho Chehab Signed-off-by: Stephen Rothwell --- drivers/staging/tm6000/tm6000-alsa.c | 1 + drivers/staging/tm6000/tm6000-cards.c | 1 + drivers/staging/tm6000/tm6000-core.c | 1 + drivers/staging/tm6000/tm6000-dvb.c | 1 + 4 files changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/staging/tm6000/tm6000-alsa.c b/drivers/staging/tm6000/tm6000-alsa.c index ce081cd..273e26e 100644 --- a/drivers/staging/tm6000/tm6000-alsa.c +++ b/drivers/staging/tm6000/tm6000-alsa.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include diff --git a/drivers/staging/tm6000/tm6000-cards.c b/drivers/staging/tm6000/tm6000-cards.c index cedd904..6a9ae40 100644 --- a/drivers/staging/tm6000/tm6000-cards.c +++ b/drivers/staging/tm6000/tm6000-cards.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/staging/tm6000/tm6000-core.c b/drivers/staging/tm6000/tm6000-core.c index 27f3f55..c3690e3 100644 --- a/drivers/staging/tm6000/tm6000-core.c +++ b/drivers/staging/tm6000/tm6000-core.c @@ -22,6 +22,7 @@ #include #include +#include #include #include #include "tm6000.h" diff --git a/drivers/staging/tm6000/tm6000-dvb.c b/drivers/staging/tm6000/tm6000-dvb.c index 261e66a..86c1c8b 100644 --- a/drivers/staging/tm6000/tm6000-dvb.c +++ b/drivers/staging/tm6000/tm6000-dvb.c @@ -18,6 +18,7 @@ */ #include +#include #include #include "tm6000.h" -- cgit v1.1 From f244f31a0d31402c2c1b1950108e0013353cc3f3 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 30 Mar 2010 02:52:36 +0900 Subject: davinci: update gfp/slab.h includes Implicit slab.h inclusion via percpu.h is about to go away. Make sure gfp.h or slab.h is included as necessary. Signed-off-by: Tejun Heo Cc: Stephen Rothwell Cc: Kevin Hilman Signed-off-by: Stephen Rothwell --- drivers/rtc/rtc-davinci.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/rtc/rtc-davinci.c b/drivers/rtc/rtc-davinci.c index 92a8f6c..34647fc 100644 --- a/drivers/rtc/rtc-davinci.c +++ b/drivers/rtc/rtc-davinci.c @@ -29,6 +29,7 @@ #include #include #include +#include /* * The DaVinci RTC is a simple RTC with the following -- cgit v1.1 From e0fb8c418520b41d57667befdb8861c46cdf69e0 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 30 Mar 2010 02:52:44 +0900 Subject: acpi: update gfp/slab.h includes Implicit slab.h inclusion via percpu.h is about to go away. Make sure gfp.h or slab.h is included as necessary. Signed-off-by: Tejun Heo Cc: Stephen Rothwell Cc: Len Brown Signed-off-by: Stephen Rothwell --- drivers/acpi/apei/apei-base.c | 1 + drivers/acpi/atomicio.c | 1 + 2 files changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c index db3946e..216e1e9 100644 --- a/drivers/acpi/apei/apei-base.c +++ b/drivers/acpi/apei/apei-base.c @@ -34,6 +34,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/acpi/atomicio.c b/drivers/acpi/atomicio.c index 814b192..8f8bd73 100644 --- a/drivers/acpi/atomicio.c +++ b/drivers/acpi/atomicio.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #define ACPI_PFX "ACPI: " -- cgit v1.1 From 500ebb82b50194f97a53d17a152cfb734ced9f21 Mon Sep 17 00:00:00 2001 From: Andres Salomon Date: Tue, 29 Jun 2010 15:05:19 -0700 Subject: gxfb: fix incorrect __init annotation WARNING: vmlinux.o(.data+0x195d8): Section mismatch in reference from the variable gxfb_driver to the function .init.text:gxfb_probe() The variable gxfb_driver references the function __init gxfb_probe() This changes gxfb_probe and friends to use __devinit, and also adds __devexit to gxfb_remove. Signed-off-by: Andres Salomon Cc: Jordan Crouse Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/geode/gxfb_core.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/video/geode/gxfb_core.c b/drivers/video/geode/gxfb_core.c index 76e7dac..70b1d9d 100644 --- a/drivers/video/geode/gxfb_core.c +++ b/drivers/video/geode/gxfb_core.c @@ -40,7 +40,7 @@ static int vram; static int vt_switch; /* Modes relevant to the GX (taken from modedb.c) */ -static struct fb_videomode gx_modedb[] __initdata = { +static struct fb_videomode gx_modedb[] __devinitdata = { /* 640x480-60 VESA */ { NULL, 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2, 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, @@ -110,14 +110,15 @@ static struct fb_videomode gx_modedb[] __initdata = { #ifdef CONFIG_OLPC #include -static struct fb_videomode gx_dcon_modedb[] __initdata = { +static struct fb_videomode gx_dcon_modedb[] __devinitdata = { /* The only mode the DCON has is 1200x900 */ { NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3, FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, 0 } }; -static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size) +static void __devinit get_modedb(struct fb_videomode **modedb, + unsigned int *size) { if (olpc_has_dcon()) { *modedb = (struct fb_videomode *) gx_dcon_modedb; @@ -129,7 +130,8 @@ static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size) } #else -static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size) +static void __devinit get_modedb(struct fb_videomode **modedb, + unsigned int *size) { *modedb = (struct fb_videomode *) gx_modedb; *size = ARRAY_SIZE(gx_modedb); @@ -226,7 +228,8 @@ static int gxfb_blank(int blank_mode, struct fb_info *info) return gx_blank_display(info, blank_mode); } -static int __init gxfb_map_video_memory(struct fb_info *info, struct pci_dev *dev) +static int __devinit gxfb_map_video_memory(struct fb_info *info, + struct pci_dev *dev) { struct gxfb_par *par = info->par; int ret; @@ -290,7 +293,7 @@ static struct fb_ops gxfb_ops = { .fb_imageblit = cfb_imageblit, }; -static struct fb_info * __init gxfb_init_fbinfo(struct device *dev) +static struct fb_info *__devinit gxfb_init_fbinfo(struct device *dev) { struct gxfb_par *par; struct fb_info *info; @@ -371,7 +374,8 @@ static int gxfb_resume(struct pci_dev *pdev) } #endif -static int __init gxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id) +static int __devinit gxfb_probe(struct pci_dev *pdev, + const struct pci_device_id *id) { struct gxfb_par *par; struct fb_info *info; @@ -451,7 +455,7 @@ static int __init gxfb_probe(struct pci_dev *pdev, const struct pci_device_id *i return ret; } -static void gxfb_remove(struct pci_dev *pdev) +static void __devexit gxfb_remove(struct pci_dev *pdev) { struct fb_info *info = pci_get_drvdata(pdev); struct gxfb_par *par = info->par; -- cgit v1.1 From 12c46b336540b483df10d794bdee5d2f1aa8e33a Mon Sep 17 00:00:00 2001 From: Andres Salomon Date: Tue, 29 Jun 2010 15:05:20 -0700 Subject: lxfb: fix incorrect __init annotation WARNING: vmlinux.o(.data+0x196e8): Section mismatch in reference from the variable lxfb_driver to the function .init.text:lxfb_probe() The variable lxfb_driver references the function __init lxfb_probe() This changes lxfb_probe and friends to use __devinit, and also adds __devexit to lxfb_remove. Signed-off-by: Andres Salomon Cc: Jordan Crouse Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/geode/lxfb_core.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/video/geode/lxfb_core.c b/drivers/video/geode/lxfb_core.c index 1a18da8..39bdbed 100644 --- a/drivers/video/geode/lxfb_core.c +++ b/drivers/video/geode/lxfb_core.c @@ -35,7 +35,7 @@ static int vt_switch; * we try to make it something sane - 640x480-60 is sane */ -static struct fb_videomode geode_modedb[] __initdata = { +static struct fb_videomode geode_modedb[] __devinitdata = { /* 640x480-60 */ { NULL, 60, 640, 480, 39682, 48, 8, 25, 2, 88, 2, FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, @@ -219,14 +219,15 @@ static struct fb_videomode geode_modedb[] __initdata = { #ifdef CONFIG_OLPC #include -static struct fb_videomode olpc_dcon_modedb[] __initdata = { +static struct fb_videomode olpc_dcon_modedb[] __devinitdata = { /* The only mode the DCON has is 1200x900 */ { NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3, FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, 0 } }; -static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size) +static void __devinit get_modedb(struct fb_videomode **modedb, + unsigned int *size) { if (olpc_has_dcon()) { *modedb = (struct fb_videomode *) olpc_dcon_modedb; @@ -238,7 +239,8 @@ static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size) } #else -static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size) +static void __devinit get_modedb(struct fb_videomode **modedb, + unsigned int *size) { *modedb = (struct fb_videomode *) geode_modedb; *size = ARRAY_SIZE(geode_modedb); @@ -334,7 +336,7 @@ static int lxfb_blank(int blank_mode, struct fb_info *info) } -static int __init lxfb_map_video_memory(struct fb_info *info, +static int __devinit lxfb_map_video_memory(struct fb_info *info, struct pci_dev *dev) { struct lxfb_par *par = info->par; @@ -412,7 +414,7 @@ static struct fb_ops lxfb_ops = { .fb_imageblit = cfb_imageblit, }; -static struct fb_info * __init lxfb_init_fbinfo(struct device *dev) +static struct fb_info * __devinit lxfb_init_fbinfo(struct device *dev) { struct lxfb_par *par; struct fb_info *info; @@ -496,7 +498,7 @@ static int lxfb_resume(struct pci_dev *pdev) #define lxfb_resume NULL #endif -static int __init lxfb_probe(struct pci_dev *pdev, +static int __devinit lxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id) { struct lxfb_par *par; @@ -588,7 +590,7 @@ err: return ret; } -static void lxfb_remove(struct pci_dev *pdev) +static void __devexit lxfb_remove(struct pci_dev *pdev) { struct fb_info *info = pci_get_drvdata(pdev); struct lxfb_par *par = info->par; -- cgit v1.1 From 56480287f9776adc5b1a7a335ef62a9b9879ad7f Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Tue, 29 Jun 2010 15:05:29 -0700 Subject: ipmi: make sure drivers were registered before unregistering them The ipmi code will never register a PCI or Open Firmware driver if a hardcoded device is provided by the user by providing device addresses via the module parameters. This can cause us to attempt to unregister a driver that was never registered, resulting in an oops. Keep track of registration in order to avoid this. Fixes a post-2.6.34 regression. Signed-off-by: Matthew Garrett Acked-by: Corey Minyard Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/ipmi/ipmi_si_intf.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 35603dd..311f85b 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -302,6 +302,12 @@ struct smi_info { static int force_kipmid[SI_MAX_PARMS]; static int num_force_kipmid; +#ifdef CONFIG_PCI +static int pci_registered; +#endif +#ifdef CONFIG_PPC_OF +static int of_registered; +#endif static unsigned int kipmid_max_busy_us[SI_MAX_PARMS]; static int num_max_busy_us; @@ -3314,6 +3320,8 @@ static __devinit int init_ipmi_si(void) rv = pci_register_driver(&ipmi_pci_driver); if (rv) printk(KERN_ERR PFX "Unable to register PCI driver: %d\n", rv); + else + pci_registered = 1; #endif #ifdef CONFIG_ACPI @@ -3330,6 +3338,7 @@ static __devinit int init_ipmi_si(void) #ifdef CONFIG_PPC_OF of_register_platform_driver(&ipmi_of_platform_driver); + of_registered = 1; #endif /* We prefer devices with interrupts, but in the case of a machine @@ -3383,11 +3392,13 @@ static __devinit int init_ipmi_si(void) if (unload_when_empty && list_empty(&smi_infos)) { mutex_unlock(&smi_infos_lock); #ifdef CONFIG_PCI - pci_unregister_driver(&ipmi_pci_driver); + if (pci_registered) + pci_unregister_driver(&ipmi_pci_driver); #endif #ifdef CONFIG_PPC_OF - of_unregister_platform_driver(&ipmi_of_platform_driver); + if (of_registered) + of_unregister_platform_driver(&ipmi_of_platform_driver); #endif driver_unregister(&ipmi_driver.driver); printk(KERN_WARNING PFX @@ -3478,14 +3489,16 @@ static __exit void cleanup_ipmi_si(void) return; #ifdef CONFIG_PCI - pci_unregister_driver(&ipmi_pci_driver); + if (pci_registered) + pci_unregister_driver(&ipmi_pci_driver); #endif #ifdef CONFIG_ACPI pnp_unregister_driver(&ipmi_pnp_driver); #endif #ifdef CONFIG_PPC_OF - of_unregister_platform_driver(&ipmi_of_platform_driver); + if (of_registered) + of_unregister_platform_driver(&ipmi_of_platform_driver); #endif mutex_lock(&smi_infos_lock); -- cgit v1.1 From 8d1f66dc9b4f80a1441bc1c33efa98aca99e8813 Mon Sep 17 00:00:00 2001 From: Martin Wilck Date: Tue, 29 Jun 2010 15:05:31 -0700 Subject: ipmi: set schedule_timeout_wait() value back to one Fix a regression introduced by ae74e823cb7d ("ipmi: add parameter to limit CPU usage in kipmid"). Some systems were seeing CPU usage go up dramatically with the recent changes to try to reduce timer usage in the IPMI driver. This was traced down to schedule_timeout_interruptible(1) being changed to schedule_timeout_interruptbile(0). Revert that part of the change. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16147 Reported-by: Thomas Jarosch Signed-off-by: Corey Minyard Tested-by: Thomas Jarosch Cc: [2.6.34.x] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/char/ipmi/ipmi_si_intf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 311f85b..094bdc3 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -1024,7 +1024,7 @@ static int ipmi_thread(void *data) else if (smi_result == SI_SM_IDLE) schedule_timeout_interruptible(100); else - schedule_timeout_interruptible(0); + schedule_timeout_interruptible(1); } return 0; } -- cgit v1.1 From 96fc3a45ea073136566f3c2676cad52f8b39a7df Mon Sep 17 00:00:00 2001 From: Joakim Tjernlund Date: Tue, 29 Jun 2010 15:05:34 -0700 Subject: rtc: fix ds1388 time corruption The ds1307 driver misreads the ds1388 registers when checking for 12 or 24 hour mode. Instead of checking the hour register it reads the minute register. Therefore the driver thinks minutes >= 40 has the 12HR bit set and resets the minute register by zeroing the high bits. This results in minutes are reset to 0-9, jumping back in time 40 or 50 minutes. The time jump is also written back to the RTC. Signed-off-by: Joakim Tjernlund Cc: Wan ZongShun Cc: Alessandro Zummo Cc: Paul Gortmaker Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/rtc/rtc-ds1307.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c index de033b7..d827ce5 100644 --- a/drivers/rtc/rtc-ds1307.c +++ b/drivers/rtc/rtc-ds1307.c @@ -777,7 +777,7 @@ static int __devinit ds1307_probe(struct i2c_client *client, read_rtc: /* read RTC registers */ - tmp = ds1307->read_block_data(ds1307->client, 0, 8, buf); + tmp = ds1307->read_block_data(ds1307->client, ds1307->offset, 8, buf); if (tmp != 8) { pr_debug("read error %d\n", tmp); err = -EIO; @@ -862,7 +862,7 @@ read_rtc: if (ds1307->regs[DS1307_REG_HOUR] & DS1307_BIT_PM) tmp += 12; i2c_smbus_write_byte_data(client, - DS1307_REG_HOUR, + ds1307->offset + DS1307_REG_HOUR, bin2bcd(tmp)); } -- cgit v1.1 From 926b1e2ca35ccb3cbe0ea9b322c5330869b95046 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Tue, 29 Jun 2010 15:05:37 -0700 Subject: drivers/gpio is platform-neutral Update Kconfig and Makefile in drivers/gpio to discourage inappropriate addition of platform-specific code. [akpm@linux-foundation.org: fix tpyo] Signed-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/gpio/Kconfig | 2 +- drivers/gpio/Makefile | 6 +++++- 2 files changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 724038d..7face91 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -1,5 +1,5 @@ # -# GPIO infrastructure and expanders +# platform-neutral GPIO infrastructure and expanders # config ARCH_WANT_OPTIONAL_GPIOLIB diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 51c3cdd..e53dcff 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -1,4 +1,8 @@ -# gpio support: dedicated expander chips, etc +# generic gpio support: dedicated expander chips, etc +# +# NOTE: platform-specific GPIO drivers don't belong in the +# drivers/gpio directory; put them with other platform setup +# code, IRQ controllers, board init, etc. ccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG -- cgit v1.1 From 032093bd44ac935ed3792ef592f94497d491cd8b Mon Sep 17 00:00:00 2001 From: Wan ZongShun Date: Tue, 29 Jun 2010 15:05:39 -0700 Subject: drivers/video/nuc900fb.c: fix lcd build error Fix a nuc900 lcd build error. Since the 'nuc900_driver_clksrc_div()' API cannot be merged into mainline successfully, I removed this clock source selection hook in this driver. This means nuc900 lcd driver has to select default clock source from the external crystal now. Signed-off-by: Wan ZongShun Cc: Qiang Wang Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/nuc900fb.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/video/nuc900fb.c b/drivers/video/nuc900fb.c index d4cde79..81687ed 100644 --- a/drivers/video/nuc900fb.c +++ b/drivers/video/nuc900fb.c @@ -596,8 +596,6 @@ static int __devinit nuc900fb_probe(struct platform_device *pdev) goto release_regs; } - nuc900_driver_clksrc_div(&pdev->dev, "ext", 0x2); - fbi->clk = clk_get(&pdev->dev, NULL); if (!fbi->clk || IS_ERR(fbi->clk)) { printk(KERN_ERR "nuc900-lcd:failed to get lcd clock source\n"); -- cgit v1.1 From 8cd774ad30c22b9d89823f1f05d845f4cdaba9e8 Mon Sep 17 00:00:00 2001 From: Dongdong Deng Date: Thu, 17 Jun 2010 11:13:40 +0800 Subject: serial: cpm_uart: implement the cpm_uart_early_write() function for console poll The cpm_uart_early_write() function which was used for console poll isn't implemented in the cpm uart driver. Implementing this function both fixes the build when CONFIG_CONSOLE_POLL is set and allows kgdboc to work via the cpm uart. Signed-off-by: Dongdong Deng Reviewed-by: Bruce Ashfield Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/serial/cpm_uart/cpm_uart_core.c | 143 ++++++++++++++++++-------------- 1 file changed, 79 insertions(+), 64 deletions(-) (limited to 'drivers') diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c index 9eb62a2..cd6cf57 100644 --- a/drivers/serial/cpm_uart/cpm_uart_core.c +++ b/drivers/serial/cpm_uart/cpm_uart_core.c @@ -930,6 +930,83 @@ static void cpm_uart_config_port(struct uart_port *port, int flags) } } +#if defined(CONFIG_CONSOLE_POLL) || defined(CONFIG_SERIAL_CPM_CONSOLE) +/* + * Write a string to the serial port + * Note that this is called with interrupts already disabled + */ +static void cpm_uart_early_write(struct uart_cpm_port *pinfo, + const char *string, u_int count) +{ + unsigned int i; + cbd_t __iomem *bdp, *bdbase; + unsigned char *cpm_outp_addr; + + /* Get the address of the host memory buffer. + */ + bdp = pinfo->tx_cur; + bdbase = pinfo->tx_bd_base; + + /* + * Now, do each character. This is not as bad as it looks + * since this is a holding FIFO and not a transmitting FIFO. + * We could add the complexity of filling the entire transmit + * buffer, but we would just wait longer between accesses...... + */ + for (i = 0; i < count; i++, string++) { + /* Wait for transmitter fifo to empty. + * Ready indicates output is ready, and xmt is doing + * that, not that it is ready for us to send. + */ + while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0) + ; + + /* Send the character out. + * If the buffer address is in the CPM DPRAM, don't + * convert it. + */ + cpm_outp_addr = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr), + pinfo); + *cpm_outp_addr = *string; + + out_be16(&bdp->cbd_datlen, 1); + setbits16(&bdp->cbd_sc, BD_SC_READY); + + if (in_be16(&bdp->cbd_sc) & BD_SC_WRAP) + bdp = bdbase; + else + bdp++; + + /* if a LF, also do CR... */ + if (*string == 10) { + while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0) + ; + + cpm_outp_addr = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr), + pinfo); + *cpm_outp_addr = 13; + + out_be16(&bdp->cbd_datlen, 1); + setbits16(&bdp->cbd_sc, BD_SC_READY); + + if (in_be16(&bdp->cbd_sc) & BD_SC_WRAP) + bdp = bdbase; + else + bdp++; + } + } + + /* + * Finally, Wait for transmitter & holding register to empty + * and restore the IER + */ + while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0) + ; + + pinfo->tx_cur = bdp; +} +#endif + #ifdef CONFIG_CONSOLE_POLL /* Serial polling routines for writing and reading from the uart while * in an interrupt or debug context. @@ -999,7 +1076,7 @@ static void cpm_put_poll_char(struct uart_port *port, static char ch[2]; ch[0] = (char)c; - cpm_uart_early_write(pinfo->port.line, ch, 1); + cpm_uart_early_write(pinfo, ch, 1); } #endif /* CONFIG_CONSOLE_POLL */ @@ -1130,9 +1207,6 @@ static void cpm_uart_console_write(struct console *co, const char *s, u_int count) { struct uart_cpm_port *pinfo = &cpm_uart_ports[co->index]; - unsigned int i; - cbd_t __iomem *bdp, *bdbase; - unsigned char *cp; unsigned long flags; int nolock = oops_in_progress; @@ -1142,66 +1216,7 @@ static void cpm_uart_console_write(struct console *co, const char *s, spin_lock_irqsave(&pinfo->port.lock, flags); } - /* Get the address of the host memory buffer. - */ - bdp = pinfo->tx_cur; - bdbase = pinfo->tx_bd_base; - - /* - * Now, do each character. This is not as bad as it looks - * since this is a holding FIFO and not a transmitting FIFO. - * We could add the complexity of filling the entire transmit - * buffer, but we would just wait longer between accesses...... - */ - for (i = 0; i < count; i++, s++) { - /* Wait for transmitter fifo to empty. - * Ready indicates output is ready, and xmt is doing - * that, not that it is ready for us to send. - */ - while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0) - ; - - /* Send the character out. - * If the buffer address is in the CPM DPRAM, don't - * convert it. - */ - cp = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr), pinfo); - *cp = *s; - - out_be16(&bdp->cbd_datlen, 1); - setbits16(&bdp->cbd_sc, BD_SC_READY); - - if (in_be16(&bdp->cbd_sc) & BD_SC_WRAP) - bdp = bdbase; - else - bdp++; - - /* if a LF, also do CR... */ - if (*s == 10) { - while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0) - ; - - cp = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr), pinfo); - *cp = 13; - - out_be16(&bdp->cbd_datlen, 1); - setbits16(&bdp->cbd_sc, BD_SC_READY); - - if (in_be16(&bdp->cbd_sc) & BD_SC_WRAP) - bdp = bdbase; - else - bdp++; - } - } - - /* - * Finally, Wait for transmitter & holding register to empty - * and restore the IER - */ - while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0) - ; - - pinfo->tx_cur = bdp; + cpm_uart_early_write(pinfo, s, count); if (unlikely(nolock)) { local_irq_restore(flags); -- cgit v1.1 From 44a0c0190b500ee6bcfc0976fe540f65dee2cd67 Mon Sep 17 00:00:00 2001 From: Jon Povey Date: Mon, 14 Jun 2010 19:41:04 +0900 Subject: USB: g_serial: don't set low_latency flag No longer set low_latency flag as it causes this warning backtrace: WARNING: at kernel/mutex.c:207 __mutex_lock_slowpath+0x6c/0x288() Fix associated locking and wakeups. Signed-off-by: Jon Povey Cc: Maulik Mankad Cc: stable Acked-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/u_serial.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c index 16bdf77..a0f79df 100644 --- a/drivers/usb/gadget/u_serial.c +++ b/drivers/usb/gadget/u_serial.c @@ -536,17 +536,11 @@ recycle: list_move(&req->list, &port->read_pool); } - /* Push from tty to ldisc; this is immediate with low_latency, and - * may trigger callbacks to this driver ... so drop the spinlock. + /* Push from tty to ldisc; without low_latency set this is handled by + * a workqueue, so we won't get callbacks and can hold port_lock */ if (tty && do_push) { - spin_unlock_irq(&port->port_lock); tty_flip_buffer_push(tty); - wake_up_interruptible(&tty->read_wait); - spin_lock_irq(&port->port_lock); - - /* tty may have been closed */ - tty = port->port_tty; } @@ -784,11 +778,6 @@ static int gs_open(struct tty_struct *tty, struct file *file) port->open_count = 1; port->openclose = false; - /* low_latency means ldiscs work in tasklet context, without - * needing a workqueue schedule ... easier to keep up. - */ - tty->low_latency = 1; - /* if connected, start the I/O stream */ if (port->port_usb) { struct gserial *gser = port->port_usb; -- cgit v1.1 From b23097b793081358a6d943263c91bae4c955c4e3 Mon Sep 17 00:00:00 2001 From: Jon Povey Date: Mon, 14 Jun 2010 19:42:10 +0900 Subject: USB: g_serial: fix tty cleanup on unload Call put_tty_driver() in cleanup function, to fix Oops when trying to open gadget serial char device after module unload. Signed-off-by: Jon Povey Acked-by: David Brownell Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/u_serial.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c index a0f79df..3e8dcb5 100644 --- a/drivers/usb/gadget/u_serial.c +++ b/drivers/usb/gadget/u_serial.c @@ -1184,6 +1184,7 @@ void gserial_cleanup(void) n_ports = 0; tty_unregister_driver(gs_tty_driver); + put_tty_driver(gs_tty_driver); gs_tty_driver = NULL; pr_debug("%s: cleaned up ttyGS* support\n", __func__); -- cgit v1.1 From f588c0db39ca35f69f815dabe5682759daa25098 Mon Sep 17 00:00:00 2001 From: Michal Nazarewicz Date: Mon, 14 Jun 2010 10:43:34 +0200 Subject: USB: gadget: g_fs: possible invalid pointer reference bug fixed During __gfs_do_config() some invalid pointers may be left in usb_configuration::interfaces array from previous calls to the __gfs_do_config() for the same configuration. This will always happen if an user space function which has a fewer then the last user space function registers itself. Composite's set_config() function that a pointer after the last interface in usb_configuration::interface is NULL unless the array is full. This patch makes the __gfs_do_config() make sure that if the usb_configuration::interface is not full then a pointer after the last interface is NULL. Signed-off-by: Michal Nazarewicz Signed-off-by: Kyungmin Park Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/g_ffs.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index 4b0e4a0..d1af253 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -392,6 +392,17 @@ static int __gfs_do_config(struct usb_configuration *c, if (unlikely(ret < 0)) return ret; + /* After previous do_configs there may be some invalid + * pointers in c->interface array. This happens every time + * a user space function with fewer interfaces than a user + * space function that was run before the new one is run. The + * compasit's set_config() assumes that if there is no more + * then MAX_CONFIG_INTERFACES interfaces in a configuration + * then there is a NULL pointer after the last interface in + * c->interface array. We need to make sure this is true. */ + if (c->next_interface_id < ARRAY_SIZE(c->interface)) + c->interface[c->next_interface_id] = NULL; + return 0; } -- cgit v1.1 From 6cc30d85a5bf61248ff0e1f0e0f15fe718bae378 Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Thu, 10 Jun 2010 12:25:28 -0700 Subject: USB: xHCI: Fix bug in link TRB activation change. Commit 6c12db90f19727c76990e7f4801c67a148b30111 introduced a bug for control transfers. The patch was supposed to change when the link TRBs at the end of each ring segment were given to the hardware. If a transfer descriptor (TD) ended just before the link TRB, the code wouldn't give back the link TRB to the hardware; instead it would be given back in prepare_ring() just before the next TD was enqueued at the top of the ring. Unfortunately, the code relied on checking the chain bit of the TRB to determine whether the TD ended just before the link TRB. It assumed that the ring enqueuing code would call prepare_ring() before enqueuing the next TD. However, control transfers are made of multiple TDs, and prepare_ring() is only called once before enqueuing two or three TDs. If the first or second TD of the control transfer ended just before the link TRB, then the code in inc_enq() would not move the enqueue pointer past the link TRB, and the link TRB would get overwritten. This would cause the xHCI driver to start writing to memory past the ring segment, and eventually the system would crash or hang. The fix is to add a flag to inc_enq() that says whether the caller will enqueue more TDs before calling prepare_ring(). If the chain bit is cleared (meaning this is the last TRB in a TD), and the caller will not enqueue more TDs, then we defer giving back the link TRB. Signed-off-by: Sarah Sharp Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-ring.c | 62 ++++++++++++++++++++++++++++++++------------ 1 file changed, 46 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 9012098..94e6934 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -182,8 +182,12 @@ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool consumer * set, but other sections talk about dealing with the chain bit set. This was * fixed in the 0.96 specification errata, but we have to assume that all 0.95 * xHCI hardware can't handle the chain bit being cleared on a link TRB. + * + * @more_trbs_coming: Will you enqueue more TRBs before calling + * prepare_transfer()? */ -static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool consumer) +static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, + bool consumer, bool more_trbs_coming) { u32 chain; union xhci_trb *next; @@ -199,15 +203,28 @@ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool consumer while (last_trb(xhci, ring, ring->enq_seg, next)) { if (!consumer) { if (ring != xhci->event_ring) { - if (chain) { - next->link.control |= TRB_CHAIN; - - /* Give this link TRB to the hardware */ - wmb(); - next->link.control ^= TRB_CYCLE; - } else { + /* + * If the caller doesn't plan on enqueueing more + * TDs before ringing the doorbell, then we + * don't want to give the link TRB to the + * hardware just yet. We'll give the link TRB + * back in prepare_ring() just before we enqueue + * the TD at the top of the ring. + */ + if (!chain && !more_trbs_coming) break; + + /* If we're not dealing with 0.95 hardware, + * carry over the chain bit of the previous TRB + * (which may mean the chain bit is cleared). + */ + if (!xhci_link_trb_quirk(xhci)) { + next->link.control &= ~TRB_CHAIN; + next->link.control |= chain; } + /* Give this link TRB to the hardware */ + wmb(); + next->link.control ^= TRB_CYCLE; } /* Toggle the cycle bit after the last ring segment. */ if (last_trb_on_last_seg(xhci, ring, ring->enq_seg, next)) { @@ -1707,9 +1724,12 @@ void xhci_handle_event(struct xhci_hcd *xhci) /* * Generic function for queueing a TRB on a ring. * The caller must have checked to make sure there's room on the ring. + * + * @more_trbs_coming: Will you enqueue more TRBs before calling + * prepare_transfer()? */ static void queue_trb(struct xhci_hcd *xhci, struct xhci_ring *ring, - bool consumer, + bool consumer, bool more_trbs_coming, u32 field1, u32 field2, u32 field3, u32 field4) { struct xhci_generic_trb *trb; @@ -1719,7 +1739,7 @@ static void queue_trb(struct xhci_hcd *xhci, struct xhci_ring *ring, trb->field[1] = field2; trb->field[2] = field3; trb->field[3] = field4; - inc_enq(xhci, ring, consumer); + inc_enq(xhci, ring, consumer, more_trbs_coming); } /* @@ -1988,6 +2008,7 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags, int trb_buff_len, this_sg_len, running_total; bool first_trb; u64 addr; + bool more_trbs_coming; struct xhci_generic_trb *start_trb; int start_cycle; @@ -2073,7 +2094,11 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags, length_field = TRB_LEN(trb_buff_len) | remainder | TRB_INTR_TARGET(0); - queue_trb(xhci, ep_ring, false, + if (num_trbs > 1) + more_trbs_coming = true; + else + more_trbs_coming = false; + queue_trb(xhci, ep_ring, false, more_trbs_coming, lower_32_bits(addr), upper_32_bits(addr), length_field, @@ -2124,6 +2149,7 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, int num_trbs; struct xhci_generic_trb *start_trb; bool first_trb; + bool more_trbs_coming; int start_cycle; u32 field, length_field; @@ -2212,7 +2238,11 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags, length_field = TRB_LEN(trb_buff_len) | remainder | TRB_INTR_TARGET(0); - queue_trb(xhci, ep_ring, false, + if (num_trbs > 1) + more_trbs_coming = true; + else + more_trbs_coming = false; + queue_trb(xhci, ep_ring, false, more_trbs_coming, lower_32_bits(addr), upper_32_bits(addr), length_field, @@ -2291,7 +2321,7 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags, /* Queue setup TRB - see section 6.4.1.2.1 */ /* FIXME better way to translate setup_packet into two u32 fields? */ setup = (struct usb_ctrlrequest *) urb->setup_packet; - queue_trb(xhci, ep_ring, false, + queue_trb(xhci, ep_ring, false, true, /* FIXME endianness is probably going to bite my ass here. */ setup->bRequestType | setup->bRequest << 8 | setup->wValue << 16, setup->wIndex | setup->wLength << 16, @@ -2307,7 +2337,7 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags, if (urb->transfer_buffer_length > 0) { if (setup->bRequestType & USB_DIR_IN) field |= TRB_DIR_IN; - queue_trb(xhci, ep_ring, false, + queue_trb(xhci, ep_ring, false, true, lower_32_bits(urb->transfer_dma), upper_32_bits(urb->transfer_dma), length_field, @@ -2324,7 +2354,7 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags, field = 0; else field = TRB_DIR_IN; - queue_trb(xhci, ep_ring, false, + queue_trb(xhci, ep_ring, false, false, 0, 0, TRB_INTR_TARGET(0), @@ -2361,7 +2391,7 @@ static int queue_command(struct xhci_hcd *xhci, u32 field1, u32 field2, "unfailable commands failed.\n"); return -ENOMEM; } - queue_trb(xhci, xhci->cmd_ring, false, field1, field2, field3, + queue_trb(xhci, xhci->cmd_ring, false, false, field1, field2, field3, field4 | xhci->cmd_ring->cycle_state); return 0; } -- cgit v1.1 From a5797a686f4c7cbced782959509d735cfa1344b1 Mon Sep 17 00:00:00 2001 From: Nobuhiro Iwamatsu Date: Mon, 7 Jun 2010 16:55:56 +0900 Subject: USB: r8a66597: Fix failure in change of status In the change by 749da5f82fe33ff68dd4aa1a5e35cd9aa6246dab, The change in the status when the USB device is connected is wrong. Therefore, the device is not recognized. Acked-by: Alan Stern CC: Yoshihiro Shimoda CC: Paul Mundt" Signed-off-by: Nobuhiro Iwamatsu Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/r8a66597-hcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 1a2bb4c..77be3c2 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -1065,7 +1065,7 @@ static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port) else if (speed == LSMODE) rh->port |= USB_PORT_STAT_LOW_SPEED; - rh->port &= USB_PORT_STAT_RESET; + rh->port &= ~USB_PORT_STAT_RESET; rh->port |= USB_PORT_STAT_ENABLE; } -- cgit v1.1 From 2bb14cbf04ded4b9e394a6ba9e4f06b82fbac8b2 Mon Sep 17 00:00:00 2001 From: Maulik Mankad Date: Tue, 15 Jun 2010 14:40:27 +0530 Subject: usb: musb: Fix a bug by making suspend interrupt available in device mode As a part of aligning the ISR code for MUSB with the specs, the ISR code was re-written. See Commit 1c25fda4a09e8229800979986ef399401053b46e (usb: musb: handle irqs in the order dictated by programming guide) With this the suspend interrupt came accidently under CONFIG_USB_MUSB_HDRC_HCD. The fix brings suspend interrupt handling outside CONFIG_USB_MUSB_HDRC_HCD. Signed-off-by: Maulik Mankad Cc: David Brownell Acked-by: Felipe Balbi Cc: stable [.34] Signed-off-by: Greg Kroah-Hartman --- drivers/usb/musb/musb_core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index fad70bc..56b6deb 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -642,7 +642,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, handled = IRQ_HANDLED; } - +#endif if (int_usb & MUSB_INTR_SUSPEND) { DBG(1, "SUSPEND (%s) devctl %02x power %02x\n", otg_state_string(musb), devctl, power); @@ -705,6 +705,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, } } +#ifdef CONFIG_USB_MUSB_HDRC_HCD if (int_usb & MUSB_INTR_CONNECT) { struct usb_hcd *hcd = musb_to_hcd(musb); void __iomem *mbase = musb->mregs; -- cgit v1.1 From 7b4a036722cfab2b3922685ad473fac35a55c3fa Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Tue, 15 Jun 2010 12:34:22 +0200 Subject: USB: otg/ulpi: bail out on read errors otg_read may return errnos, so bail out correctly to prevent bogus ID-numbers. Signed-off-by: Wolfram Sang Cc: Sascha Hauer Acked-by: Daniel Mack Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/otg/ulpi.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/otg/ulpi.c b/drivers/usb/otg/ulpi.c index b1b3469..d331b22 100644 --- a/drivers/usb/otg/ulpi.c +++ b/drivers/usb/otg/ulpi.c @@ -59,12 +59,17 @@ static int ulpi_set_flags(struct otg_transceiver *otg) static int ulpi_init(struct otg_transceiver *otg) { - int i, vid, pid; - - vid = (otg_io_read(otg, ULPI_VENDOR_ID_HIGH) << 8) | - otg_io_read(otg, ULPI_VENDOR_ID_LOW); - pid = (otg_io_read(otg, ULPI_PRODUCT_ID_HIGH) << 8) | - otg_io_read(otg, ULPI_PRODUCT_ID_LOW); + int i, vid, pid, ret; + u32 ulpi_id = 0; + + for (i = 0; i < 4; i++) { + ret = otg_io_read(otg, ULPI_PRODUCT_ID_HIGH - i); + if (ret < 0) + return ret; + ulpi_id = (ulpi_id << 8) | ret; + } + vid = ulpi_id & 0xffff; + pid = ulpi_id >> 16; pr_info("ULPI transceiver vendor/product ID 0x%04x/0x%04x\n", vid, pid); -- cgit v1.1 From 4c9715de52b9b6256bf1e9510917111a47b0c176 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Tue, 15 Jun 2010 12:34:23 +0200 Subject: USB: ehci-mxc: bail out on transceiver problems The old code registered the hcd even if there were no transceivers detected, leading to oopses like this if we try to probe a non-existant ULPI: [ 2.730000] mxc-ehci mxc-ehci.0: unable to init transceiver [ 2.740000] timeout polling for ULPI device [ 2.740000] timeout polling for ULPI device [ 2.750000] mxc-ehci mxc-ehci.0: unable to enable vbus on transceiver [ 2.750000] mxc-ehci mxc-ehci.0: Freescale On-Chip EHCI Host Controller [ 2.760000] mxc-ehci mxc-ehci.0: new USB bus registered, assigned bus number 2 [ 2.770000] Unhandled fault: external abort on non-linefetch (0x808) at 0xc4876184 [ 2.770000] Internal error: : 808 [#1] PREEMPT [ 2.770000] last sysfs file: [ 2.770000] Modules linked in: [ 2.770000] CPU: 0 Not tainted (2.6.33.5 #5) [ 2.770000] PC is at ehci_hub_control+0x4d4/0x8f8 [ 2.770000] LR is at ehci_mxc_setup+0xbc/0xdc [ 2.770000] pc : [] lr : [] psr: 00000093 [ 2.770000] sp : c3815e40 ip : 00000001 fp : 60000013 [ 2.770000] r10: c4876184 r9 : 00000000 r8 : c3814000 [ 2.770000] r7 : c391d2cc r6 : 00000001 r5 : 00000001 r4 : 00000000 [ 2.770000] r3 : 80000000 r2 : 00000007 r1 : 80000000 r0 : c4876184 [ 2.770000] Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel [ 2.770000] Control: 0005317f Table: a0004000 DAC: 00000017 [ 2.770000] Process swapper (pid: 1, stack limit = 0xc3814270) ... Signed-off-by: Wolfram Sang Cc: Sascha Hauer Cc: stable Acked-by: Daniel Mack Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-mxc.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c index 544ccfd..bd40277 100644 --- a/drivers/usb/host/ehci-mxc.c +++ b/drivers/usb/host/ehci-mxc.c @@ -207,10 +207,17 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev) /* Initialize the transceiver */ if (pdata->otg) { pdata->otg->io_priv = hcd->regs + ULPI_VIEWPORT_OFFSET; - if (otg_init(pdata->otg) != 0) - dev_err(dev, "unable to init transceiver\n"); - else if (otg_set_vbus(pdata->otg, 1) != 0) + ret = otg_init(pdata->otg); + if (ret) { + dev_err(dev, "unable to init transceiver, probably missing\n"); + ret = -ENODEV; + goto err_add; + } + ret = otg_set_vbus(pdata->otg, 1); + if (ret) { dev_err(dev, "unable to enable vbus on transceiver\n"); + goto err_add; + } } priv->hcd = hcd; -- cgit v1.1 From 3b49d2315c119b9ae8a9a33b07d4eb7d194c01a7 Mon Sep 17 00:00:00 2001 From: Vladimir Zapolskiy Date: Fri, 18 Jun 2010 08:25:00 +0400 Subject: USB: s3c2410: deactivate endpoints before gadget unbinding Gadget disconnect must be called before unbinding to avoid races. The change fixes an oops on g_ether module unregistering. Signed-off-by: Vladimir Zapolskiy Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/s3c2410_udc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c index d5f4c1d..e724a05 100644 --- a/drivers/usb/gadget/s3c2410_udc.c +++ b/drivers/usb/gadget/s3c2410_udc.c @@ -1700,9 +1700,13 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) if (!driver || driver != udc->driver || !driver->unbind) return -EINVAL; - dprintk(DEBUG_NORMAL,"usb_gadget_register_driver() '%s'\n", + dprintk(DEBUG_NORMAL, "usb_gadget_unregister_driver() '%s'\n", driver->driver.name); + /* report disconnect */ + if (driver->disconnect) + driver->disconnect(&udc->gadget); + driver->unbind(&udc->gadget); device_del(&udc->gadget.dev); -- cgit v1.1 From 64d65872f96e2a754caa12ef48949c314384bd9f Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Fri, 18 Jun 2010 10:16:33 -0400 Subject: USB: fix oops in usb_sg_init() This patch (as1401) fixes a bug in usb_sg_init() that can cause an invalid pointer dereference. An inner loop reuses some local variables in an unsafe manner, so new variables are introduced. Signed-off-by: Alan Stern Tested-by: Ajay Kumar Gupta Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/message.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index a73e08f..fd4c36e 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -416,8 +416,11 @@ int usb_sg_init(struct usb_sg_request *io, struct usb_device *dev, /* A length of zero means transfer the whole sg list */ len = length; if (len == 0) { - for_each_sg(sg, sg, nents, i) - len += sg->length; + struct scatterlist *sg2; + int j; + + for_each_sg(sg, sg2, nents, j) + len += sg2->length; } } else { /* -- cgit v1.1 From 9a49a14da4afe2c4ab7d7025a2f7f0f99a1c90e0 Mon Sep 17 00:00:00 2001 From: Daniel Sangorrin Date: Fri, 18 Jun 2010 15:30:02 +0900 Subject: USB: serial: ftdi: correct merge conflict with CONTEC id This patch corrects a problem with the merge of a previous patch to add the CONTEC identifier. I believe the merge problem occurred with the commit: dee5658b482e9e2ac7d6205dc876fc11d4008138 Originally I submitted a patch and then they asked me to order the IDs and resubmit, so did I. But unfortunately in the end somehow both patches were merged. Signed-off-by: Daniel Sangorrin Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ftdi_sio.c | 1 - drivers/usb/serial/ftdi_sio_ids.h | 7 ------- 2 files changed, 8 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 79dd1ae..da7e334 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -653,7 +653,6 @@ static struct usb_device_id id_table_combined [] = { { USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) }, { USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) }, { USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) }, - { USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) }, { USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) }, diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 94d86c3..bbc159a 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -501,13 +501,6 @@ #define CONTEC_COM1USBH_PID 0x8311 /* COM-1(USB)H */ /* - * Contec products (http://www.contec.com) - * Submitted by Daniel Sangorrin - */ -#define CONTEC_VID 0x06CE /* Vendor ID */ -#define CONTEC_COM1USBH_PID 0x8311 /* COM-1(USB)H */ - -/* * Definitions for B&B Electronics products. */ #define BANDB_VID 0x0856 /* B&B Electronics Vendor ID */ -- cgit v1.1 From 1c815577823951ff082fe1201fdd5efec5e6e8ea Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 21 Jun 2010 17:02:51 +0200 Subject: USB: isp1362-hcd, fix double lock Stanse found that isp1362_sw_reset tries to take a isp1362_hcd->lock, but it is already held in isp1362_hc_stop. Avoid that by introducing __isp1362_sw_reset which doesn't take the lock and call it from isp1362_hc_stop. isp1362_sw_reset is then as simple as lock -- __isp1362_sw_reset -- unlock. Signed-off-by: Jiri Slaby Cc: Lothar Wassmann Cc: Michael Hennerich Cc: Bryan Wu Cc: Mike Frysinger Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/isp1362-hcd.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c index 20a0dfe0..0587ad4 100644 --- a/drivers/usb/host/isp1362-hcd.c +++ b/drivers/usb/host/isp1362-hcd.c @@ -2224,12 +2224,9 @@ static void remove_debug_file(struct isp1362_hcd *isp1362_hcd) /*-------------------------------------------------------------------------*/ -static void isp1362_sw_reset(struct isp1362_hcd *isp1362_hcd) +static void __isp1362_sw_reset(struct isp1362_hcd *isp1362_hcd) { int tmp = 20; - unsigned long flags; - - spin_lock_irqsave(&isp1362_hcd->lock, flags); isp1362_write_reg16(isp1362_hcd, HCSWRES, HCSWRES_MAGIC); isp1362_write_reg32(isp1362_hcd, HCCMDSTAT, OHCI_HCR); @@ -2240,6 +2237,14 @@ static void isp1362_sw_reset(struct isp1362_hcd *isp1362_hcd) } if (!tmp) pr_err("Software reset timeout\n"); +} + +static void isp1362_sw_reset(struct isp1362_hcd *isp1362_hcd) +{ + unsigned long flags; + + spin_lock_irqsave(&isp1362_hcd->lock, flags); + __isp1362_sw_reset(isp1362_hcd); spin_unlock_irqrestore(&isp1362_hcd->lock, flags); } @@ -2418,7 +2423,7 @@ static void isp1362_hc_stop(struct usb_hcd *hcd) if (isp1362_hcd->board && isp1362_hcd->board->reset) isp1362_hcd->board->reset(hcd->self.controller, 1); else - isp1362_sw_reset(isp1362_hcd); + __isp1362_sw_reset(isp1362_hcd); if (isp1362_hcd->board && isp1362_hcd->board->clock) isp1362_hcd->board->clock(hcd->self.controller, 0); -- cgit v1.1 From 10ca4425714a6115c5d865718d64874a1e1ea09a Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Mon, 21 Jun 2010 17:02:40 +0200 Subject: USB: gadget/printer, fix sleep inside atomic Stanse found that sleep is called inside atomic context created by lock_printer_io spinlock in several functions. It's used in process context only and some functions sleep inside its critical section. As this is not allowed for spinlocks, switch it to mutex. Signed-off-by: Jiri Slaby Cc: Craig W. Nadler Acked-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/printer.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c index 43abf55..4c3ac5c 100644 --- a/drivers/usb/gadget/printer.c +++ b/drivers/usb/gadget/printer.c @@ -82,7 +82,7 @@ static struct class *usb_gadget_class; struct printer_dev { spinlock_t lock; /* lock this structure */ /* lock buffer lists during read/write calls */ - spinlock_t lock_printer_io; + struct mutex lock_printer_io; struct usb_gadget *gadget; struct usb_request *req; /* for control responses */ u8 config; @@ -567,7 +567,7 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr) DBG(dev, "printer_read trying to read %d bytes\n", (int)len); - spin_lock(&dev->lock_printer_io); + mutex_lock(&dev->lock_printer_io); spin_lock_irqsave(&dev->lock, flags); /* We will use this flag later to check if a printer reset happened @@ -601,7 +601,7 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr) * call or not. */ if (fd->f_flags & (O_NONBLOCK|O_NDELAY)) { - spin_unlock(&dev->lock_printer_io); + mutex_unlock(&dev->lock_printer_io); return -EAGAIN; } @@ -648,7 +648,7 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr) if (dev->reset_printer) { list_add(¤t_rx_req->list, &dev->rx_reqs); spin_unlock_irqrestore(&dev->lock, flags); - spin_unlock(&dev->lock_printer_io); + mutex_unlock(&dev->lock_printer_io); return -EAGAIN; } @@ -673,7 +673,7 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr) dev->current_rx_buf = current_rx_buf; spin_unlock_irqrestore(&dev->lock, flags); - spin_unlock(&dev->lock_printer_io); + mutex_unlock(&dev->lock_printer_io); DBG(dev, "printer_read returned %d bytes\n", (int)bytes_copied); @@ -697,7 +697,7 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr) if (len == 0) return -EINVAL; - spin_lock(&dev->lock_printer_io); + mutex_lock(&dev->lock_printer_io); spin_lock_irqsave(&dev->lock, flags); /* Check if a printer reset happens while we have interrupts on */ @@ -713,7 +713,7 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr) * a NON-Blocking call or not. */ if (fd->f_flags & (O_NONBLOCK|O_NDELAY)) { - spin_unlock(&dev->lock_printer_io); + mutex_unlock(&dev->lock_printer_io); return -EAGAIN; } @@ -752,7 +752,7 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr) if (copy_from_user(req->buf, buf, size)) { list_add(&req->list, &dev->tx_reqs); - spin_unlock(&dev->lock_printer_io); + mutex_unlock(&dev->lock_printer_io); return bytes_copied; } @@ -766,14 +766,14 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr) if (dev->reset_printer) { list_add(&req->list, &dev->tx_reqs); spin_unlock_irqrestore(&dev->lock, flags); - spin_unlock(&dev->lock_printer_io); + mutex_unlock(&dev->lock_printer_io); return -EAGAIN; } if (usb_ep_queue(dev->in_ep, req, GFP_ATOMIC)) { list_add(&req->list, &dev->tx_reqs); spin_unlock_irqrestore(&dev->lock, flags); - spin_unlock(&dev->lock_printer_io); + mutex_unlock(&dev->lock_printer_io); return -EAGAIN; } @@ -782,7 +782,7 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr) } spin_unlock_irqrestore(&dev->lock, flags); - spin_unlock(&dev->lock_printer_io); + mutex_unlock(&dev->lock_printer_io); DBG(dev, "printer_write sent %d bytes\n", (int)bytes_copied); @@ -820,11 +820,11 @@ printer_poll(struct file *fd, poll_table *wait) unsigned long flags; int status = 0; - spin_lock(&dev->lock_printer_io); + mutex_lock(&dev->lock_printer_io); spin_lock_irqsave(&dev->lock, flags); setup_rx_reqs(dev); spin_unlock_irqrestore(&dev->lock, flags); - spin_unlock(&dev->lock_printer_io); + mutex_unlock(&dev->lock_printer_io); poll_wait(fd, &dev->rx_wait, wait); poll_wait(fd, &dev->tx_wait, wait); @@ -1461,7 +1461,7 @@ autoconf_fail: } spin_lock_init(&dev->lock); - spin_lock_init(&dev->lock_printer_io); + mutex_init(&dev->lock_printer_io); INIT_LIST_HEAD(&dev->tx_reqs); INIT_LIST_HEAD(&dev->tx_reqs_active); INIT_LIST_HEAD(&dev->rx_reqs); @@ -1594,7 +1594,7 @@ cleanup(void) { int status; - spin_lock(&usb_printer_gadget.lock_printer_io); + mutex_lock(&usb_printer_gadget.lock_printer_io); class_destroy(usb_gadget_class); unregister_chrdev_region(g_printer_devno, 2); @@ -1602,6 +1602,6 @@ cleanup(void) if (status) ERROR(dev, "usb_gadget_unregister_driver %x\n", status); - spin_unlock(&usb_printer_gadget.lock_printer_io); + mutex_unlock(&usb_printer_gadget.lock_printer_io); } module_exit(cleanup); -- cgit v1.1 From 0d152de56938361fa2b960db67657b20cdaa6d84 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 21 Jun 2010 08:44:17 +0800 Subject: USB: qcserial: fix a memory leak in qcprobe error path This patch adds missing kfree(data) before return -ENODEV. Signed-off-by: Axel Lin Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/qcserial.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c index 04bb759..93d72eb 100644 --- a/drivers/usb/serial/qcserial.c +++ b/drivers/usb/serial/qcserial.c @@ -139,6 +139,7 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) "Could not set interface, error %d\n", retval); retval = -ENODEV; + kfree(data); } return retval; } @@ -155,6 +156,7 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) "Could not set interface, error %d\n", retval); retval = -ENODEV; + kfree(data); } return retval; } @@ -163,6 +165,7 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id) default: dev_err(&serial->dev->dev, "unknown number of interfaces: %d\n", nintf); + kfree(data); return -ENODEV; } -- cgit v1.1 From 03ab7461df3c74c9418c3f5485ea1127ece1ff79 Mon Sep 17 00:00:00 2001 From: Jiri Pinkava Date: Sun, 20 Jun 2010 20:05:52 +0200 Subject: USB: gadget eth: Fix calculate CRC32 in EEM CRC should be calculated for Ethernet frame, not for whole recievede EEM data. This bug shows rarely, because in many times len == skb->len. Signed-off-by: Jiri Pinkava Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/f_eem.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/f_eem.c b/drivers/usb/gadget/f_eem.c index 38226e9..95dd466 100644 --- a/drivers/usb/gadget/f_eem.c +++ b/drivers/usb/gadget/f_eem.c @@ -469,8 +469,7 @@ static int eem_unwrap(struct gether *port, crc = get_unaligned_le32(skb->data + len - ETH_FCS_LEN); crc2 = ~crc32_le(~0, - skb->data, - skb->len - ETH_FCS_LEN); + skb->data, len - ETH_FCS_LEN); } else { crc = get_unaligned_be32(skb->data + len - ETH_FCS_LEN); -- cgit v1.1 From 48826626263d4a61d06fd8c5805da31f925aefa0 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Tue, 22 Jun 2010 16:14:48 -0400 Subject: USB: obey the sysfs power/wakeup setting This patch (as1403) is a partial reversion of an earlier change (commit 5f677f1d45b2bf08085bbba7394392dfa586fa8e "USB: fix remote wakeup settings during system sleep"). After hearing from a user, I realized that remote wakeup should be enabled during system sleep whenever userspace allows it, and not only if a driver requests it too. Indeed, there could be a device with no driver, that does nothing but generate a wakeup request when the user presses a button. Such a device should be allowed to do its job. The problem fixed by the earlier patch -- device generating a wakeup request for no reason, causing system suspend to abort -- was also addressed by a later patch ("USB: don't enable remote wakeup by default", accepted but not yet merged into mainline). The device won't be able to generate the bogus wakeup requests because it will be disabled for remote wakeup by default. Hence this reversion will not re-introduce any old problems. Signed-off-by: Alan Stern Cc: stable [.34] Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/driver.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index de98a94..a6bd53a 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -1272,8 +1272,7 @@ static int usb_resume_both(struct usb_device *udev, pm_message_t msg) static void choose_wakeup(struct usb_device *udev, pm_message_t msg) { - int w, i; - struct usb_interface *intf; + int w; /* Remote wakeup is needed only when we actually go to sleep. * For things like FREEZE and QUIESCE, if the device is already @@ -1285,16 +1284,10 @@ static void choose_wakeup(struct usb_device *udev, pm_message_t msg) return; } - /* If remote wakeup is permitted, see whether any interface drivers + /* Enable remote wakeup if it is allowed, even if no interface drivers * actually want it. */ - w = 0; - if (device_may_wakeup(&udev->dev) && udev->actconfig) { - for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { - intf = udev->actconfig->interface[i]; - w |= intf->needs_remote_wakeup; - } - } + w = device_may_wakeup(&udev->dev); /* If the device is autosuspended with the wrong wakeup setting, * autoresume now so the setting can be changed. -- cgit v1.1 From 7d9645fdca444d53907b22a4b73e3967efe09781 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Thu, 24 Jun 2010 23:07:06 +0530 Subject: USB: musb_core: make disconnect and suspend interrupts work again Commit 1c25fda4a09e8229800979986ef399401053b46e (usb: musb: handle irqs in the order dictated by programming guide) forgot to get rid of the old 'STAGE0_MASK' filter for calling musb_stage0_irq(), so now disconnect and suspend interrupts are effectively ignored... Signed-off-by: Sergei Shtylyov Cc: stable Signed-off-by: Ajay Kumar Gupta Acked-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/musb/musb_core.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 56b6deb..737cab7 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -451,10 +451,6 @@ void musb_hnp_stop(struct musb *musb) * @param power */ -#define STAGE0_MASK (MUSB_INTR_RESUME | MUSB_INTR_SESSREQ \ - | MUSB_INTR_VBUSERROR | MUSB_INTR_CONNECT \ - | MUSB_INTR_RESET) - static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, u8 devctl, u8 power) { @@ -1598,7 +1594,7 @@ irqreturn_t musb_interrupt(struct musb *musb) /* the core can interrupt us for multiple reasons; docs have * a generic interrupt flowchart to follow */ - if (musb->int_usb & STAGE0_MASK) + if (musb->int_usb) retval |= musb_stage0_irq(musb, musb->int_usb, devctl, power); -- cgit v1.1 From 9297688a9257d73956d4bba484d9dd331ca72c25 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Thu, 24 Jun 2010 23:07:07 +0530 Subject: USB: MUSB: make non-OMAP platforms build with CONFIG_PM=y Attempt to build MUSB driver with CONFIG_PM=y (e.g. in the OTG mode) on DaVinci results in these link errors: drivers/built-in.o: In function `musb_restore_context': led-triggers.c:(.text+0x714d8): undefined reference to `musb_platform_restore_context' drivers/built-in.o: In function `musb_save_context': led-triggers.c:(.text+0x71788): undefined reference to `musb_platform_save_context' This turned out to be caused by commit 9957dd97ec5e98dd334f87ade1d9a0b24d1f86eb (usb: musb: Fix compile error for omaps for musb_hdrc). Revert it, taking into account the rename of CONFIG_ARCH_OMAP34XX into CONFIG_ARCH_OMAP3 (which that commit fixed in a completely inappropriate way) and the recent addition of OMAP4 support. Signed-off-by: Sergei Shtylyov Signed-off-by: Ajay Kumar Gupta Acked-by: Felipe Balbi Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/musb/musb_core.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index b22d02d..91d6779 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -470,7 +470,8 @@ struct musb_csr_regs { struct musb_context_registers { -#ifdef CONFIG_PM +#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \ + defined(CONFIG_ARCH_OMAP4) u32 otg_sysconfig, otg_forcestandby; #endif u8 power; @@ -484,7 +485,8 @@ struct musb_context_registers { struct musb_csr_regs index_regs[MUSB_C_NUM_EPS]; }; -#ifdef CONFIG_PM +#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \ + defined(CONFIG_ARCH_OMAP4) extern void musb_platform_save_context(struct musb *musb, struct musb_context_registers *musb_context); extern void musb_platform_restore_context(struct musb *musb, -- cgit v1.1 From f2263db74a66f1e341efb115e9f2420678c927b9 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Thu, 24 Jun 2010 23:07:08 +0530 Subject: USB: musb: fix Blackfin ulpi stubs The new ulpi code defines fallback stubs for the Blackfin arch, but does so incorrectly leading to a build failure: drivers/usb/musb/musb_core.c:227: error: 'musb_ulpi_read' undeclared here (not in a function) drivers/usb/musb/musb_core.c:228: error: 'musb_ulpi_write' undeclared here (not in a function) Tweak the fallback stubs so that they do work as intended. Signed-off-by: Mike Frysinger Signed-off-by: Ajay Kumar Gupta Acked-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/musb/musb_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 737cab7..3b795c5 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -219,8 +219,8 @@ static int musb_ulpi_write(struct otg_transceiver *otg, return 0; } #else -#define musb_ulpi_read(a, b) NULL -#define musb_ulpi_write(a, b, c) NULL +#define musb_ulpi_read NULL +#define musb_ulpi_write NULL #endif static struct otg_io_access_ops musb_ulpi_access = { -- cgit v1.1 From c0f1f8e38fda8e345cad9269c559b4f036378120 Mon Sep 17 00:00:00 2001 From: Hema HK Date: Thu, 24 Jun 2010 23:07:09 +0530 Subject: USB: musb: Enable the maximum supported burst mode for DMA Setting MUSB Burst Mode 3 automatically enables support for lower burst modes (BURST4, BURST8, BURST16 or bursts of unspecified length). There is no need to set these burst modes based on the packet size. Also enable the burst mode for both mode1 and mode0. This is a fix for buggy hardware - having the lower burst modes enabled can potentially cause lockups of the DMA engine used in OMAP2/3/4 chips. Signed-off-by: Hema HK Signed-off-by: Anand Gadiyar Signed-off-by: Ajay Kumar Gupta Acked-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/musb/musbhsdma.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c index 1008044..dc66e43 100644 --- a/drivers/usb/musb/musbhsdma.c +++ b/drivers/usb/musb/musbhsdma.c @@ -132,18 +132,9 @@ static void configure_channel(struct dma_channel *channel, if (mode) { csr |= 1 << MUSB_HSDMA_MODE1_SHIFT; BUG_ON(len < packet_sz); - - if (packet_sz >= 64) { - csr |= MUSB_HSDMA_BURSTMODE_INCR16 - << MUSB_HSDMA_BURSTMODE_SHIFT; - } else if (packet_sz >= 32) { - csr |= MUSB_HSDMA_BURSTMODE_INCR8 - << MUSB_HSDMA_BURSTMODE_SHIFT; - } else if (packet_sz >= 16) { - csr |= MUSB_HSDMA_BURSTMODE_INCR4 - << MUSB_HSDMA_BURSTMODE_SHIFT; - } } + csr |= MUSB_HSDMA_BURSTMODE_INCR16 + << MUSB_HSDMA_BURSTMODE_SHIFT; csr |= (musb_channel->epnum << MUSB_HSDMA_ENDPOINT_SHIFT) | (1 << MUSB_HSDMA_ENABLE_SHIFT) -- cgit v1.1 From e5fd39d9b80aaa0b8a16dd570fa55009905d6af4 Mon Sep 17 00:00:00 2001 From: Michal Nazarewicz Date: Fri, 25 Jun 2010 16:29:26 +0200 Subject: USB: gadget: f_mass_storage: fixed fs descriptors not being updated The full speed descriptors were copied to the usb_function structure in the fsg_bind_config function before call to the usb_ep_autoconfig. The usb_ep_autoconfig was called in fsg_bind using the original descriptors. In effect copied descriptors were not updated. This patch changes the copy full speed descriptors after the call to usb_op_autoconfig is performed. This way, copied full speed descriptors have updated values. Signed-off-by: Michal Nazarewicz Cc: Kyungmin Park Reported-by: Dries Van Puymbroeck Tested-by: Dries Van Puymbroeck Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/f_mass_storage.c | 34 ++++++++++++---------------------- 1 file changed, 12 insertions(+), 22 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index 7d05a0b..f866b7e 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -2970,7 +2970,6 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f) { struct fsg_dev *fsg = fsg_from_func(f); struct usb_gadget *gadget = c->cdev->gadget; - int rc; int i; struct usb_ep *ep; @@ -2996,6 +2995,11 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f) ep->driver_data = fsg->common; /* claim the endpoint */ fsg->bulk_out = ep; + /* Copy descriptors */ + f->descriptors = usb_copy_descriptors(fsg_fs_function); + if (unlikely(!f->descriptors)) + return -ENOMEM; + if (gadget_is_dualspeed(gadget)) { /* Assume endpoint addresses are the same for both speeds */ fsg_hs_bulk_in_desc.bEndpointAddress = @@ -3003,16 +3007,17 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f) fsg_hs_bulk_out_desc.bEndpointAddress = fsg_fs_bulk_out_desc.bEndpointAddress; f->hs_descriptors = usb_copy_descriptors(fsg_hs_function); - if (unlikely(!f->hs_descriptors)) + if (unlikely(!f->hs_descriptors)) { + usb_free_descriptors(f->descriptors); return -ENOMEM; + } } return 0; autoconf_fail: ERROR(fsg, "unable to autoconfigure all endpoints\n"); - rc = -ENOTSUPP; - return rc; + return -ENOTSUPP; } @@ -3036,11 +3041,6 @@ static int fsg_add(struct usb_composite_dev *cdev, fsg->function.name = FSG_DRIVER_DESC; fsg->function.strings = fsg_strings_array; - fsg->function.descriptors = usb_copy_descriptors(fsg_fs_function); - if (unlikely(!fsg->function.descriptors)) { - rc = -ENOMEM; - goto error_free_fsg; - } fsg->function.bind = fsg_bind; fsg->function.unbind = fsg_unbind; fsg->function.setup = fsg_setup; @@ -3056,19 +3056,9 @@ static int fsg_add(struct usb_composite_dev *cdev, rc = usb_add_function(c, &fsg->function); if (unlikely(rc)) - goto error_free_all; - - fsg_common_get(fsg->common); - return 0; - -error_free_all: - usb_free_descriptors(fsg->function.descriptors); - /* fsg_bind() might have copied those; or maybe not? who cares - * -- free it just in case. */ - usb_free_descriptors(fsg->function.hs_descriptors); -error_free_fsg: - kfree(fsg); - + kfree(fsg); + else + fsg_common_get(fsg->common); return rc; } -- cgit v1.1 From b894f60a232d552fc18b018271c2893f0b0c1c15 Mon Sep 17 00:00:00 2001 From: Michal Nazarewicz Date: Fri, 25 Jun 2010 16:29:28 +0200 Subject: USB: gadget: f_mass_storage: stale common->fsg value bug fix On fsg_unbind the common->fsg pointer was not NULLed if the unbound fsg_dev instance was the current one. As an effect, the incorrect pointer was preserved in all further operations which caused do_set_interface to reference an invalid region. This commit fixes this by raising an exception in fsg_bind which will change the common->fsg pointer. This also requires an wait queue so that the thread in fsg_bind can wait till the worker thread handles the exception. This commit removes also a config and new_config fields of fsg_common as they are no longer needed since fsg can be used to determine whether function is active or not. Moreover, this commit removes possible race condition where the fsg field was modified in both the worker thread and form various other contexts. This is fixed by replacing prev_fsg with new_fsg. At this point, fsg is assigned only in worker thread. Signed-off-by: Michal Nazarewicz Cc: Kyungmin Park Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/f_mass_storage.c | 160 ++++++++++++++---------------------- 1 file changed, 61 insertions(+), 99 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index f866b7e..4ce899c 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -321,8 +321,8 @@ struct fsg_dev; /* Data shared by all the FSG instances. */ struct fsg_common { struct usb_gadget *gadget; - struct fsg_dev *fsg; - struct fsg_dev *prev_fsg; + struct fsg_dev *fsg, *new_fsg; + wait_queue_head_t fsg_wait; /* filesem protects: backing files in use */ struct rw_semaphore filesem; @@ -351,7 +351,6 @@ struct fsg_common { enum fsg_state state; /* For exception handling */ unsigned int exception_req_tag; - u8 config, new_config; enum data_direction data_dir; u32 data_size; u32 data_size_from_cmnd; @@ -595,7 +594,7 @@ static int fsg_setup(struct usb_function *f, u16 w_value = le16_to_cpu(ctrl->wValue); u16 w_length = le16_to_cpu(ctrl->wLength); - if (!fsg->common->config) + if (!fsg_is_set(fsg->common)) return -EOPNOTSUPP; switch (ctrl->bRequest) { @@ -2303,24 +2302,20 @@ static int alloc_request(struct fsg_common *common, struct usb_ep *ep, return -ENOMEM; } -/* - * Reset interface setting and re-init endpoint state (toggle etc). - * Call with altsetting < 0 to disable the interface. The only other - * available altsetting is 0, which enables the interface. - */ -static int do_set_interface(struct fsg_common *common, int altsetting) +/* Reset interface setting and re-init endpoint state (toggle etc). */ +static int do_set_interface(struct fsg_common *common, struct fsg_dev *new_fsg) { - int rc = 0; - int i; - const struct usb_endpoint_descriptor *d; + const struct usb_endpoint_descriptor *d; + struct fsg_dev *fsg; + int i, rc = 0; if (common->running) DBG(common, "reset interface\n"); reset: /* Deallocate the requests */ - if (common->prev_fsg) { - struct fsg_dev *fsg = common->prev_fsg; + if (common->fsg) { + fsg = common->fsg; for (i = 0; i < FSG_NUM_BUFFERS; ++i) { struct fsg_buffhd *bh = &common->buffhds[i]; @@ -2345,88 +2340,53 @@ reset: fsg->bulk_out_enabled = 0; } - common->prev_fsg = 0; + common->fsg = NULL; + wake_up(&common->fsg_wait); } common->running = 0; - if (altsetting < 0 || rc != 0) + if (!new_fsg || rc) return rc; - DBG(common, "set interface %d\n", altsetting); + common->fsg = new_fsg; + fsg = common->fsg; - if (fsg_is_set(common)) { - struct fsg_dev *fsg = common->fsg; - common->prev_fsg = common->fsg; + /* Enable the endpoints */ + d = fsg_ep_desc(common->gadget, + &fsg_fs_bulk_in_desc, &fsg_hs_bulk_in_desc); + rc = enable_endpoint(common, fsg->bulk_in, d); + if (rc) + goto reset; + fsg->bulk_in_enabled = 1; + + d = fsg_ep_desc(common->gadget, + &fsg_fs_bulk_out_desc, &fsg_hs_bulk_out_desc); + rc = enable_endpoint(common, fsg->bulk_out, d); + if (rc) + goto reset; + fsg->bulk_out_enabled = 1; + common->bulk_out_maxpacket = le16_to_cpu(d->wMaxPacketSize); + clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags); + + /* Allocate the requests */ + for (i = 0; i < FSG_NUM_BUFFERS; ++i) { + struct fsg_buffhd *bh = &common->buffhds[i]; - /* Enable the endpoints */ - d = fsg_ep_desc(common->gadget, - &fsg_fs_bulk_in_desc, &fsg_hs_bulk_in_desc); - rc = enable_endpoint(common, fsg->bulk_in, d); + rc = alloc_request(common, fsg->bulk_in, &bh->inreq); if (rc) goto reset; - fsg->bulk_in_enabled = 1; - - d = fsg_ep_desc(common->gadget, - &fsg_fs_bulk_out_desc, &fsg_hs_bulk_out_desc); - rc = enable_endpoint(common, fsg->bulk_out, d); + rc = alloc_request(common, fsg->bulk_out, &bh->outreq); if (rc) goto reset; - fsg->bulk_out_enabled = 1; - common->bulk_out_maxpacket = le16_to_cpu(d->wMaxPacketSize); - clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags); - - /* Allocate the requests */ - for (i = 0; i < FSG_NUM_BUFFERS; ++i) { - struct fsg_buffhd *bh = &common->buffhds[i]; - - rc = alloc_request(common, fsg->bulk_in, &bh->inreq); - if (rc) - goto reset; - rc = alloc_request(common, fsg->bulk_out, &bh->outreq); - if (rc) - goto reset; - bh->inreq->buf = bh->outreq->buf = bh->buf; - bh->inreq->context = bh->outreq->context = bh; - bh->inreq->complete = bulk_in_complete; - bh->outreq->complete = bulk_out_complete; - } - - common->running = 1; - for (i = 0; i < common->nluns; ++i) - common->luns[i].unit_attention_data = SS_RESET_OCCURRED; - return rc; - } else { - return -EIO; + bh->inreq->buf = bh->outreq->buf = bh->buf; + bh->inreq->context = bh->outreq->context = bh; + bh->inreq->complete = bulk_in_complete; + bh->outreq->complete = bulk_out_complete; } -} - -/* - * Change our operational configuration. This code must agree with the code - * that returns config descriptors, and with interface altsetting code. - * - * It's also responsible for power management interactions. Some - * configurations might not work with our current power sources. - * For now we just assume the gadget is always self-powered. - */ -static int do_set_config(struct fsg_common *common, u8 new_config) -{ - int rc = 0; - - /* Disable the single interface */ - if (common->config != 0) { - DBG(common, "reset config\n"); - common->config = 0; - rc = do_set_interface(common, -1); - } - - /* Enable the interface */ - if (new_config != 0) { - common->config = new_config; - rc = do_set_interface(common, 0); - if (rc != 0) - common->config = 0; /* Reset on errors */ - } + common->running = 1; + for (i = 0; i < common->nluns; ++i) + common->luns[i].unit_attention_data = SS_RESET_OCCURRED; return rc; } @@ -2437,9 +2397,7 @@ static int do_set_config(struct fsg_common *common, u8 new_config) static int fsg_set_alt(struct usb_function *f, unsigned intf, unsigned alt) { struct fsg_dev *fsg = fsg_from_func(f); - fsg->common->prev_fsg = fsg->common->fsg; - fsg->common->fsg = fsg; - fsg->common->new_config = 1; + fsg->common->new_fsg = fsg; raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE); return 0; } @@ -2447,9 +2405,7 @@ static int fsg_set_alt(struct usb_function *f, unsigned intf, unsigned alt) static void fsg_disable(struct usb_function *f) { struct fsg_dev *fsg = fsg_from_func(f); - fsg->common->prev_fsg = fsg->common->fsg; - fsg->common->fsg = fsg; - fsg->common->new_config = 0; + fsg->common->new_fsg = NULL; raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE); } @@ -2459,19 +2415,17 @@ static void fsg_disable(struct usb_function *f) static void handle_exception(struct fsg_common *common) { siginfo_t info; - int sig; int i; struct fsg_buffhd *bh; enum fsg_state old_state; - u8 new_config; struct fsg_lun *curlun; unsigned int exception_req_tag; - int rc; /* Clear the existing signals. Anything but SIGUSR1 is converted * into a high-priority EXIT exception. */ for (;;) { - sig = dequeue_signal_lock(current, ¤t->blocked, &info); + int sig = + dequeue_signal_lock(current, ¤t->blocked, &info); if (!sig) break; if (sig != SIGUSR1) { @@ -2482,7 +2436,7 @@ static void handle_exception(struct fsg_common *common) } /* Cancel all the pending transfers */ - if (fsg_is_set(common)) { + if (likely(common->fsg)) { for (i = 0; i < FSG_NUM_BUFFERS; ++i) { bh = &common->buffhds[i]; if (bh->inreq_busy) @@ -2523,7 +2477,6 @@ static void handle_exception(struct fsg_common *common) common->next_buffhd_to_fill = &common->buffhds[0]; common->next_buffhd_to_drain = &common->buffhds[0]; exception_req_tag = common->exception_req_tag; - new_config = common->new_config; old_state = common->state; if (old_state == FSG_STATE_ABORT_BULK_OUT) @@ -2573,12 +2526,12 @@ static void handle_exception(struct fsg_common *common) break; case FSG_STATE_CONFIG_CHANGE: - rc = do_set_config(common, new_config); + do_set_interface(common, common->new_fsg); break; case FSG_STATE_EXIT: case FSG_STATE_TERMINATED: - do_set_config(common, 0); /* Free resources */ + do_set_interface(common, NULL); /* Free resources */ spin_lock_irq(&common->lock); common->state = FSG_STATE_TERMINATED; /* Stop the thread */ spin_unlock_irq(&common->lock); @@ -2863,6 +2816,7 @@ buffhds_first_it: goto error_release; } init_completion(&common->thread_notifier); + init_waitqueue_head(&common->fsg_wait); #undef OR @@ -2957,9 +2911,17 @@ static void fsg_common_release(struct kref *ref) static void fsg_unbind(struct usb_configuration *c, struct usb_function *f) { struct fsg_dev *fsg = fsg_from_func(f); + struct fsg_common *common = fsg->common; DBG(fsg, "unbind\n"); - fsg_common_put(fsg->common); + if (fsg->common->fsg == fsg) { + fsg->common->new_fsg = NULL; + raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE); + /* FIXME: make interruptible or killable somehow? */ + wait_event(common->fsg_wait, common->fsg != fsg); + } + + fsg_common_put(common); usb_free_descriptors(fsg->function.descriptors); usb_free_descriptors(fsg->function.hs_descriptors); kfree(fsg); -- cgit v1.1 From f2102d31de1f0ddb9ced62d65d2ed89a5149ea39 Mon Sep 17 00:00:00 2001 From: Himanshu Chauhan Date: Fri, 4 Jun 2010 23:16:27 +0530 Subject: staging: usbip: usbip_common: kill rx thread on tx thread creation error. Signed-off-by: Himanshu Chauhan Signed-off-by: Greg Kroah-Hartman --- drivers/staging/usbip/usbip_common.c | 46 ++++++++++++++++++++++++++---------- 1 file changed, 33 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/staging/usbip/usbip_common.c b/drivers/staging/usbip/usbip_common.c index 5240816..6a499f0 100644 --- a/drivers/staging/usbip/usbip_common.c +++ b/drivers/staging/usbip/usbip_common.c @@ -378,47 +378,67 @@ int usbip_thread(void *param) complete_and_exit(&ut->thread_done, 0); } +static void stop_rx_thread(struct usbip_device *ud) +{ + if (ud->tcp_rx.thread != NULL) { + send_sig(SIGKILL, ud->tcp_rx.thread, 1); + wait_for_completion(&ud->tcp_rx.thread_done); + usbip_udbg("rx_thread for ud %p has finished\n", ud); + } +} + +static void stop_tx_thread(struct usbip_device *ud) +{ + if (ud->tcp_tx.thread != NULL) { + send_sig(SIGKILL, ud->tcp_tx.thread, 1); + wait_for_completion(&ud->tcp_tx.thread_done); + usbip_udbg("tx_thread for ud %p has finished\n", ud); + } +} + int usbip_start_threads(struct usbip_device *ud) { /* * threads are invoked per one device (per one connection). */ struct task_struct *th; + int err = 0; th = kthread_run(usbip_thread, (void *)&ud->tcp_rx, "usbip"); if (IS_ERR(th)) { printk(KERN_WARNING "Unable to start control thread\n"); - return PTR_ERR(th); + err = PTR_ERR(th); + goto ust_exit; } + th = kthread_run(usbip_thread, (void *)&ud->tcp_tx, "usbip"); if (IS_ERR(th)) { printk(KERN_WARNING "Unable to start control thread\n"); - return PTR_ERR(th); + err = PTR_ERR(th); + goto tx_thread_err; } /* confirm threads are starting */ wait_for_completion(&ud->tcp_rx.thread_done); wait_for_completion(&ud->tcp_tx.thread_done); + return 0; + +tx_thread_err: + stop_rx_thread(ud); + +ust_exit: + return err; } EXPORT_SYMBOL_GPL(usbip_start_threads); void usbip_stop_threads(struct usbip_device *ud) { /* kill threads related to this sdev, if v.c. exists */ - if (ud->tcp_rx.thread != NULL) { - send_sig(SIGKILL, ud->tcp_rx.thread, 1); - wait_for_completion(&ud->tcp_rx.thread_done); - usbip_udbg("rx_thread for ud %p has finished\n", ud); - } - - if (ud->tcp_tx.thread != NULL) { - send_sig(SIGKILL, ud->tcp_tx.thread, 1); - wait_for_completion(&ud->tcp_tx.thread_done); - usbip_udbg("tx_thread for ud %p has finished\n", ud); - } + stop_rx_thread(ud); + stop_tx_thread(ud); } EXPORT_SYMBOL_GPL(usbip_stop_threads); -- cgit v1.1 From 25477f2398f39a35f110e02f6c7d8dd1023c47c1 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sun, 6 Jun 2010 21:03:04 +0200 Subject: Staging: batman-adv: return -EFAULT on copy_to_user errors copy_to_user() returns the number of bites remaining but we want to return a negative error code here. Signed-off-by: Dan Carpenter Signed-off-by: Sven Eckelmann Signed-off-by: Greg Kroah-Hartman --- drivers/staging/batman-adv/device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/staging/batman-adv/device.c b/drivers/staging/batman-adv/device.c index 7eb6559..32204b5 100644 --- a/drivers/staging/batman-adv/device.c +++ b/drivers/staging/batman-adv/device.c @@ -196,7 +196,7 @@ ssize_t bat_device_read(struct file *file, char __user *buf, size_t count, kfree(device_packet); if (error) - return error; + return -EFAULT; return sizeof(struct icmp_packet); } -- cgit v1.1 From eb169d1cc7fb219cc42c584f7a195f71913e6b6a Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Sun, 6 Jun 2010 21:03:05 +0200 Subject: Staging: batman-adv: fix function prototype In today linux-next I got a compile warning in staging/batman-adv. This is due a struct bin_attribute read function prototype change and the driver was not updated. This patch solves the issue Signed-off-by: Javier Martinez Canillas Signed-off-by: Sven Eckelmann Signed-off-by: Greg Kroah-Hartman --- drivers/staging/batman-adv/bat_sysfs.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/staging/batman-adv/bat_sysfs.c b/drivers/staging/batman-adv/bat_sysfs.c index e2c000b..212bc21 100644 --- a/drivers/staging/batman-adv/bat_sysfs.c +++ b/drivers/staging/batman-adv/bat_sysfs.c @@ -225,9 +225,9 @@ static struct bat_attribute *mesh_attrs[] = { NULL, }; -static ssize_t transtable_local_read(struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buff, loff_t off, size_t count) +static ssize_t transtable_local_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buff, loff_t off, size_t count) { struct device *dev = to_dev(kobj->parent); struct net_device *net_dev = to_net_dev(dev); @@ -235,9 +235,9 @@ static ssize_t transtable_local_read(struct kobject *kobj, return hna_local_fill_buffer_text(net_dev, buff, count, off); } -static ssize_t transtable_global_read(struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buff, loff_t off, size_t count) +static ssize_t transtable_global_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buff, loff_t off, size_t count) { struct device *dev = to_dev(kobj->parent); struct net_device *net_dev = to_net_dev(dev); @@ -245,9 +245,9 @@ static ssize_t transtable_global_read(struct kobject *kobj, return hna_global_fill_buffer_text(net_dev, buff, count, off); } -static ssize_t originators_read(struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buff, loff_t off, size_t count) +static ssize_t originators_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buff, loff_t off, size_t count) { struct device *dev = to_dev(kobj->parent); struct net_device *net_dev = to_net_dev(dev); @@ -255,9 +255,9 @@ static ssize_t originators_read(struct kobject *kobj, return orig_fill_buffer_text(net_dev, buff, count, off); } -static ssize_t vis_data_read(struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buff, loff_t off, size_t count) +static ssize_t vis_data_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buff, loff_t off, size_t count) { struct device *dev = to_dev(kobj->parent); struct net_device *net_dev = to_net_dev(dev); -- cgit v1.1 From 44176d9f8265de799512f833ca4d9785aa016b3a Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 5 Jun 2010 19:16:42 +0200 Subject: Staging: mrst-touchscreen: fix dereferencing free memory I moved the kfree() down a couple lines after the dereference. Signed-off-by: Dan Carpenter Acked-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/staging/mrst-touchscreen/intel-mid-touch.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/staging/mrst-touchscreen/intel-mid-touch.c b/drivers/staging/mrst-touchscreen/intel-mid-touch.c index 1db0097..abba22f 100644 --- a/drivers/staging/mrst-touchscreen/intel-mid-touch.c +++ b/drivers/staging/mrst-touchscreen/intel-mid-touch.c @@ -817,9 +817,9 @@ static int mrstouch_remove(struct spi_device *spi) free_irq(mrstouchdevp->irq, mrstouchdevp); input_unregister_device(mrstouchdevp->input); input_free_device(mrstouchdevp->input); - kfree(mrstouchdevp); if (mrstouchdevp->pendet_thrd) kthread_stop(mrstouchdevp->pendet_thrd); + kfree(mrstouchdevp); return 0; } -- cgit v1.1 From 6c2fd308045ba902fbe9f4408daa7b949fa8f5a1 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Fri, 18 Jun 2010 12:11:28 +0100 Subject: Staging: comedi: drivers: adl_pci9111: Fix AI commands in TRIG_FOLLOW case I received a report that AI streaming acquisitions do not work properly for the adl_pci9111 driver when convert_src is TRIG_TIMER and scan_begin_src is TRIG_FOLLOW (and scan_begin_arg is therefore 0). This seems to be down to the incorrect setting of dev_private->scan_delay in pci9111_ai_do_cmd(). Under the previously stated conditions, dev_private->scan_delay ends up set to (unsigned int)-1, but it ought to be set to 0. The function sets it to 0 initially, and it only makes sense to change it if both convert_src and scan_begin_src are set to TRIG_TIMER. Note: 'scan_delay' is the number of unwanted scans to discard after each valid scan. The hardware does not support 'scan' timing as such, just a regularly paced conversion timer (with automatic channel switching between conversions). The driver simulates a scan period that is some (>1) multiple of the conversion period times the scan length (chanlist_len samples) by reading chanlist_len samples and discarding the next scan_delay times chanlist_len samples. Signed-off-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/adl_pci9111.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/staging/comedi/drivers/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c index 36a254c..39d112b 100644 --- a/drivers/staging/comedi/drivers/adl_pci9111.c +++ b/drivers/staging/comedi/drivers/adl_pci9111.c @@ -824,9 +824,12 @@ static int pci9111_ai_do_cmd(struct comedi_device *dev, plx9050_interrupt_control(dev_private->lcr_io_base, true, true, false, true, true); - dev_private->scan_delay = - (async_cmd->scan_begin_arg / (async_cmd->convert_arg * - async_cmd->chanlist_len)) - 1; + if (async_cmd->scan_begin_src == TRIG_TIMER) { + dev_private->scan_delay = + (async_cmd->scan_begin_arg / + (async_cmd->convert_arg * + async_cmd->chanlist_len)) - 1; + } break; -- cgit v1.1 From 8b5d6d3bd3e34e4cc67d875c8c88007c1c9aa960 Mon Sep 17 00:00:00 2001 From: Haiyang Zhang Date: Fri, 28 May 2010 23:22:44 +0000 Subject: staging: hv: Fix race condition on vmbus channel initialization There is a possible race condition when hv_utils starts to load immediately after hv_vmbus is loading - null pointer error could happen. This patch added wait/completion to ensure all channels are ready before vmbus loading completes. So another module won't have any uninitialized channel. Signed-off-by: Haiyang Zhang Signed-off-by: Hank Janssen Signed-off-by: Greg Kroah-Hartman --- drivers/staging/hv/channel_mgmt.c | 41 ++++++++++++++++++++++++++++----------- drivers/staging/hv/vmbus.h | 2 ++ drivers/staging/hv/vmbus_drv.c | 3 +++ 3 files changed, 35 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/staging/hv/channel_mgmt.c b/drivers/staging/hv/channel_mgmt.c index 3f53b4d..12db555 100644 --- a/drivers/staging/hv/channel_mgmt.c +++ b/drivers/staging/hv/channel_mgmt.c @@ -23,6 +23,7 @@ #include #include #include +#include #include "osd.h" #include "logging.h" #include "vmbus_private.h" @@ -293,6 +294,25 @@ void FreeVmbusChannel(struct vmbus_channel *Channel) Channel); } + +DECLARE_COMPLETION(hv_channel_ready); + +/* + * Count initialized channels, and ensure all channels are ready when hv_vmbus + * module loading completes. + */ +static void count_hv_channel(void) +{ + static int counter; + unsigned long flags; + + spin_lock_irqsave(&gVmbusConnection.channel_lock, flags); + if (++counter == MAX_MSG_TYPES) + complete(&hv_channel_ready); + spin_unlock_irqrestore(&gVmbusConnection.channel_lock, flags); +} + + /* * VmbusChannelProcessOffer - Process the offer by creating a channel/device * associated with this offer @@ -373,22 +393,21 @@ static void VmbusChannelProcessOffer(void *context) * can cleanup properly */ newChannel->State = CHANNEL_OPEN_STATE; - cnt = 0; - while (cnt != MAX_MSG_TYPES) { + /* Open IC channels */ + for (cnt = 0; cnt < MAX_MSG_TYPES; cnt++) { if (memcmp(&newChannel->OfferMsg.Offer.InterfaceType, &hv_cb_utils[cnt].data, - sizeof(struct hv_guid)) == 0) { + sizeof(struct hv_guid)) == 0 && + VmbusChannelOpen(newChannel, 2 * PAGE_SIZE, + 2 * PAGE_SIZE, NULL, 0, + hv_cb_utils[cnt].callback, + newChannel) == 0) { + hv_cb_utils[cnt].channel = newChannel; DPRINT_INFO(VMBUS, "%s", - hv_cb_utils[cnt].log_msg); - - if (VmbusChannelOpen(newChannel, 2 * PAGE_SIZE, - 2 * PAGE_SIZE, NULL, 0, - hv_cb_utils[cnt].callback, - newChannel) == 0) - hv_cb_utils[cnt].channel = newChannel; + hv_cb_utils[cnt].log_msg); + count_hv_channel(); } - cnt++; } } DPRINT_EXIT(VMBUS); diff --git a/drivers/staging/hv/vmbus.h b/drivers/staging/hv/vmbus.h index 0c6ee0f..3c14b29 100644 --- a/drivers/staging/hv/vmbus.h +++ b/drivers/staging/hv/vmbus.h @@ -74,4 +74,6 @@ int vmbus_child_driver_register(struct driver_context *driver_ctx); void vmbus_child_driver_unregister(struct driver_context *driver_ctx); void vmbus_get_interface(struct vmbus_channel_interface *interface); +extern struct completion hv_channel_ready; + #endif /* _VMBUS_H_ */ diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c index c21731a..22c80ec 100644 --- a/drivers/staging/hv/vmbus_drv.c +++ b/drivers/staging/hv/vmbus_drv.c @@ -27,6 +27,7 @@ #include #include #include +#include #include "version_info.h" #include "osd.h" #include "logging.h" @@ -356,6 +357,8 @@ static int vmbus_bus_init(int (*drv_init)(struct hv_driver *drv)) vmbus_drv_obj->GetChannelOffers(); + wait_for_completion(&hv_channel_ready); + cleanup: DPRINT_EXIT(VMBUS_DRV); -- cgit v1.1 From d750785f305e03669757678c24cb4e6e8761edf0 Mon Sep 17 00:00:00 2001 From: Haiyang Zhang Date: Wed, 19 May 2010 15:56:28 +0000 Subject: Staging: hv: fix hv_utils module to properly autoload Added autoloading based on pci id and dmi strings. Signed-off-by: Haiyang Zhang Signed-off-by: Hank Janssen Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/hv/hv_utils.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'drivers') diff --git a/drivers/staging/hv/hv_utils.c b/drivers/staging/hv/hv_utils.c index 8a49aaf..2adc9b4 100644 --- a/drivers/staging/hv/hv_utils.c +++ b/drivers/staging/hv/hv_utils.c @@ -24,6 +24,8 @@ #include #include #include +#include +#include #include "logging.h" #include "osd.h" @@ -251,10 +253,36 @@ static void heartbeat_onchannelcallback(void *context) DPRINT_EXIT(VMBUS); } +static const struct pci_device_id __initconst +hv_utils_pci_table[] __maybe_unused = { + { PCI_DEVICE(0x1414, 0x5353) }, /* Hyper-V emulated VGA controller */ + { 0 } +}; +MODULE_DEVICE_TABLE(pci, hv_utils_pci_table); + + +static const struct dmi_system_id __initconst +hv_utils_dmi_table[] __maybe_unused = { + { + .ident = "Hyper-V", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"), + DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"), + DMI_MATCH(DMI_BOARD_NAME, "Virtual Machine"), + }, + }, + { }, +}; +MODULE_DEVICE_TABLE(dmi, hv_utils_dmi_table); + + static int __init init_hyperv_utils(void) { printk(KERN_INFO "Registering HyperV Utility Driver\n"); + if (!dmi_check_system(hv_utils_dmi_table)) + return -ENODEV; + hv_cb_utils[HV_SHUTDOWN_MSG].channel->OnChannelCallback = &shutdown_onchannelcallback; hv_cb_utils[HV_SHUTDOWN_MSG].callback = &shutdown_onchannelcallback; -- cgit v1.1 From 8174fc04e8e71b3969a45c9be288f6535d6b90d3 Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Wed, 9 Jun 2010 16:01:10 -0400 Subject: Staging: wlags49_h2: add missing for strlen On ia64, the build fails with incompatible implicit definition of strlen. This patch adds the include to get the real prototype. Signed-off-by: Jeff Mahoney Signed-off-by: Greg Kroah-Hartman --- drivers/staging/wlags49_h2/wl_enc.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/staging/wlags49_h2/wl_enc.c b/drivers/staging/wlags49_h2/wl_enc.c index 48c44c8..26cf548 100644 --- a/drivers/staging/wlags49_h2/wl_enc.c +++ b/drivers/staging/wlags49_h2/wl_enc.c @@ -62,6 +62,7 @@ /******************************************************************************* * include files ******************************************************************************/ +#include #include #include -- cgit v1.1 From d268e0d28165340c3799a8a4944bc40f444f49fd Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Thu, 17 Jun 2010 01:17:44 -0400 Subject: Staging: wlags49_h2: Fix build error when CONFIG_SYSFS is not set MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit I got a wlags49_h2 driver build error in linux-next when CONFIG_SYSFS is not set. CC [M] drivers/staging/wlags49_h2/wl_cs.o In file included from drivers/staging/wlags49_h2/wl_cs.c:104: drivers/staging/wlags49_h2/wl_sysfs.h: In function ‘register_wlags_sysfs’: drivers/staging/wlags49_h2/wl_sysfs.h:5: error: parameter name omitted drivers/staging/wlags49_h2/wl_sysfs.h: In function ‘unregister_wlags_sysfs’: drivers/staging/wlags49_h2/wl_sysfs.h:6: error: parameter name omitted make[1]: *** [drivers/staging/wlags49_h2/wl_cs.o] Error 1 make: *** [_module_drivers/staging/wlags49_h2] Error 2 This is due a wrong function definition (it does not include parameters names). Signed-off-by: Javier Martinez Canillas Signed-off-by: Greg Kroah-Hartman --- drivers/staging/wlags49_h2/wl_sysfs.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/staging/wlags49_h2/wl_sysfs.h b/drivers/staging/wlags49_h2/wl_sysfs.h index 6d96d03..fa658c3 100644 --- a/drivers/staging/wlags49_h2/wl_sysfs.h +++ b/drivers/staging/wlags49_h2/wl_sysfs.h @@ -2,6 +2,6 @@ extern void register_wlags_sysfs(struct net_device *); extern void unregister_wlags_sysfs(struct net_device *); #else -static void register_wlags_sysfs(struct net_device *) { return; }; -static void unregister_wlags_sysfs(struct net_device *) { return; }; +static inline void register_wlags_sysfs(struct net_device *net) { } +static inline void unregister_wlags_sysfs(struct net_device *net) { } #endif -- cgit v1.1 From f84f927e081e16e1a4fcd92d28c3bc81c7b1864b Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Mon, 7 Jun 2010 12:00:44 -0500 Subject: Staging: rtl8187se: Fix compile warnings in 2.6.35-rc2 In commit bbfb5652, the spacing in the definitions of eqMacAddr and cpMacAddr in drivers/staging/rtl8187se/r8180_core.c were changed to conform to kernel standards. These definitions were duplicates of lines found in drivers/staging/rtl8187se/ieee80211/dot11d.h. Once the change was made, the following warnings were emitted: CC [M] drivers/staging/rtl8187se/r8180_core.o drivers/staging/rtl8187se/r8180_core.c:69:0: warning: "eqMacAddr" redefined drivers/staging/rtl8187se/ieee80211/dot11d.h:39:0: note: this is the location of the previous definition drivers/staging/rtl8187se/r8180_core.c:70:0: warning: "cpMacAddr" redefined drivers/staging/rtl8187se/ieee80211/dot11d.h:40:0: note: this is the location of the previous definition The fix is to keep only the difinition in the header file. Signed-off-by: Larry Finger Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8187se/r8180_core.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c index dacefea..49ab9fa 100644 --- a/drivers/staging/rtl8187se/r8180_core.c +++ b/drivers/staging/rtl8187se/r8180_core.c @@ -66,8 +66,6 @@ static int hwseqnum = 0; static int hwwep = 0; static int channels = 0x3fff; -#define eqMacAddr(a, b) (((a)[0] == (b)[0] && (a)[1] == (b)[1] && (a)[2] == (b)[2] && (a)[3] == (b)[3] && (a)[4] == (b)[4] && (a)[5] == (b)[5]) ? 1 : 0) -#define cpMacAddr(des, src) ((des)[0] = (src)[0], (des)[1] = (src)[1], (des)[2] = (src)[2], (des)[3] = (src)[3], (des)[4] = (src)[4], (des)[5] = (src)[5]) MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(pci, rtl8180_pci_id_tbl); MODULE_AUTHOR("Andrea Merello "); -- cgit v1.1 From 60b42de30ad6fb131dc8e9dbd11a8a9ea0ab394c Mon Sep 17 00:00:00 2001 From: Florian Schilhabel Date: Tue, 8 Jun 2010 03:46:26 +0200 Subject: Staging: rtl8192su: remove device ids This patch removes some device-ids. The list of unsupported devices was extracted from realteks driver package. removed IDs are: (0x0bda, 0x8192) (0x0bda, 0x8709) (0x07aa, 0x0043) (0x050d, 0x805E) (0x0df6, 0x0031) (0x1740, 0x9201) (0x2001, 0x3301) (0x5a57, 0x0290) These devices are _not_ rtl819su based. Signed-off-by: Florian Schilhabel Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8192su/r8192U_core.c | 14 -------------- 1 file changed, 14 deletions(-) (limited to 'drivers') diff --git a/drivers/staging/rtl8192su/r8192U_core.c b/drivers/staging/rtl8192su/r8192U_core.c index 447d647..06b2b97 100644 --- a/drivers/staging/rtl8192su/r8192U_core.c +++ b/drivers/staging/rtl8192su/r8192U_core.c @@ -114,22 +114,8 @@ u32 rt_global_debug_component = \ static const struct usb_device_id rtl8192_usb_id_tbl[] = { /* Realtek */ {USB_DEVICE(0x0bda, 0x8171)}, - {USB_DEVICE(0x0bda, 0x8192)}, - {USB_DEVICE(0x0bda, 0x8709)}, - /* Corega */ - {USB_DEVICE(0x07aa, 0x0043)}, - /* Belkin */ - {USB_DEVICE(0x050d, 0x805E)}, {USB_DEVICE(0x050d, 0x815F)}, /* Belkin F5D8053 v6 */ - /* Sitecom */ - {USB_DEVICE(0x0df6, 0x0031)}, {USB_DEVICE(0x0df6, 0x004b)}, /* WL-349 */ - /* EnGenius */ - {USB_DEVICE(0x1740, 0x9201)}, - /* Dlink */ - {USB_DEVICE(0x2001, 0x3301)}, - /* Zinwell */ - {USB_DEVICE(0x5a57, 0x0290)}, /* Guillemot */ {USB_DEVICE(0x06f8, 0xe031)}, //92SU -- cgit v1.1 From 15d93ed070125d51693f102a0f94045dcaf30d9b Mon Sep 17 00:00:00 2001 From: Florian Schilhabel Date: Tue, 8 Jun 2010 03:47:13 +0200 Subject: Staging: rtl8192su: add device ids This patch adds some device ids. The list of supported devices was extracted from realteks driver package. (0x050d, 0x815F) and (0x0df6, 0x004b) are not in the official list of supported devices and may not work correctly. In case of problems with these, they should probably be removed from the list. Signed-off-by: Florian Schilhabel Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8192su/r8192U_core.c | 30 +++++++++++++++++++++++------- 1 file changed, 23 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/staging/rtl8192su/r8192U_core.c b/drivers/staging/rtl8192su/r8192U_core.c index 06b2b97..f1d852be 100644 --- a/drivers/staging/rtl8192su/r8192U_core.c +++ b/drivers/staging/rtl8192su/r8192U_core.c @@ -112,14 +112,30 @@ u32 rt_global_debug_component = \ #define CAM_CONTENT_COUNT 8 static const struct usb_device_id rtl8192_usb_id_tbl[] = { - /* Realtek */ - {USB_DEVICE(0x0bda, 0x8171)}, - {USB_DEVICE(0x050d, 0x815F)}, /* Belkin F5D8053 v6 */ - {USB_DEVICE(0x0df6, 0x004b)}, /* WL-349 */ - /* Guillemot */ - {USB_DEVICE(0x06f8, 0xe031)}, - //92SU + {USB_DEVICE(0x0bda, 0x8171)}, /* Realtek */ {USB_DEVICE(0x0bda, 0x8172)}, + {USB_DEVICE(0x0bda, 0x8173)}, + {USB_DEVICE(0x0bda, 0x8174)}, + {USB_DEVICE(0x0bda, 0x8712)}, + {USB_DEVICE(0x0bda, 0x8713)}, + {USB_DEVICE(0x07aa, 0x0047)}, + {USB_DEVICE(0x07d1, 0x3303)}, + {USB_DEVICE(0x07d1, 0x3302)}, + {USB_DEVICE(0x07d1, 0x3300)}, + {USB_DEVICE(0x1740, 0x9603)}, + {USB_DEVICE(0x1740, 0x9605)}, + {USB_DEVICE(0x050d, 0x815F)}, + {USB_DEVICE(0x06f8, 0xe031)}, + {USB_DEVICE(0x7392, 0x7611)}, + {USB_DEVICE(0x7392, 0x7612)}, + {USB_DEVICE(0x7392, 0x7622)}, + {USB_DEVICE(0x0DF6, 0x0045)}, + {USB_DEVICE(0x0E66, 0x0015)}, + {USB_DEVICE(0x0E66, 0x0016)}, + {USB_DEVICE(0x0b05, 0x1786)}, + /* these are not in the official list */ + {USB_DEVICE(0x050d, 0x815F)}, /* Belkin F5D8053 v6 */ + {USB_DEVICE(0x0df6, 0x004b)}, /* WL-349 */ {} }; -- cgit v1.1 From 821e67a135d8773c8e9c0b97088b2e64c3d0d631 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 21 Jun 2010 08:49:25 +0200 Subject: Staging: comedi: fix read past end of array in cb_pcidda_attach() There are only 6 elements in the cb_pcidda_boards[] array so the original code read past the end. After this change nothing uses N_BOARDS so I removed the definition. Signed-off-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/cb_pcidda.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/staging/comedi/drivers/cb_pcidda.c b/drivers/staging/comedi/drivers/cb_pcidda.c index 81829d6..c374bee 100644 --- a/drivers/staging/comedi/drivers/cb_pcidda.c +++ b/drivers/staging/comedi/drivers/cb_pcidda.c @@ -52,7 +52,6 @@ Please report success/failure with other different cards to #include "8255.h" #define PCI_VENDOR_ID_CB 0x1307 /* PCI vendor number of ComputerBoards */ -#define N_BOARDS 10 /* Number of boards in cb_pcidda_boards */ #define EEPROM_SIZE 128 /* number of entries in eeprom */ #define MAX_AO_CHANNELS 8 /* maximum number of ao channels for supported boards */ @@ -307,7 +306,7 @@ static int cb_pcidda_attach(struct comedi_device *dev, continue; } } - for (index = 0; index < N_BOARDS; index++) { + for (index = 0; index < ARRAY_SIZE(cb_pcidda_boards); index++) { if (cb_pcidda_boards[index].device_id == pcidev->device) { goto found; -- cgit v1.1 From 9674e57a4fa9686c3ef4df5c194a4c445745d03f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ozan=20=C3=87a=C4=9Flayan?= Date: Mon, 21 Jun 2010 14:00:56 +0300 Subject: Staging: rt2870: add device id for Zyxel NWD-270N MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add device id for Zyxel NWD-270N USB dongle. Signed-off-by: Ozan Çağlayan Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rt2860/usb_main_dev.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/staging/rt2860/usb_main_dev.c b/drivers/staging/rt2860/usb_main_dev.c index b740662..674769d 100644 --- a/drivers/staging/rt2860/usb_main_dev.c +++ b/drivers/staging/rt2860/usb_main_dev.c @@ -77,6 +77,7 @@ struct usb_device_id rtusb_usb_id[] = { {USB_DEVICE(0x083A, 0x7522)}, /* Arcadyan */ {USB_DEVICE(0x0CDE, 0x0022)}, /* ZCOM */ {USB_DEVICE(0x0586, 0x3416)}, /* Zyxel */ + {USB_DEVICE(0x0586, 0x341a)}, /* Zyxel NWD-270N */ {USB_DEVICE(0x0CDE, 0x0025)}, /* Zyxel */ {USB_DEVICE(0x1740, 0x9701)}, /* EnGenius */ {USB_DEVICE(0x1740, 0x9702)}, /* EnGenius */ -- cgit v1.1 From 081a52924623df3e550be8cd124b1416fc77b4f1 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 25 Jun 2010 01:35:01 +0100 Subject: Staging: rtl8192s_usb: Remove duplicate device ID Signed-off-by: Ben Hutchings Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8192su/r8192U_core.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/staging/rtl8192su/r8192U_core.c b/drivers/staging/rtl8192su/r8192U_core.c index f1d852be..1b68906 100644 --- a/drivers/staging/rtl8192su/r8192U_core.c +++ b/drivers/staging/rtl8192su/r8192U_core.c @@ -134,7 +134,6 @@ static const struct usb_device_id rtl8192_usb_id_tbl[] = { {USB_DEVICE(0x0E66, 0x0016)}, {USB_DEVICE(0x0b05, 0x1786)}, /* these are not in the official list */ - {USB_DEVICE(0x050d, 0x815F)}, /* Belkin F5D8053 v6 */ {USB_DEVICE(0x0df6, 0x004b)}, /* WL-349 */ {} }; -- cgit v1.1 From e10ac155828324c475637827d4c3525012391f02 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 25 Jun 2010 01:35:49 +0100 Subject: Staging: rtl8192u_usb: Add LG device ID 043e:7a01 Add another device ID as listed in the vendor driver version 0003.0825.2009. Signed-off-by: Ben Hutchings Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8192u/r8192U_core.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index 2bede27..f38472c 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -121,6 +121,8 @@ static const struct usb_device_id rtl8192_usb_id_tbl[] = { {USB_DEVICE(0x2001, 0x3301)}, /* Zinwell */ {USB_DEVICE(0x5a57, 0x0290)}, + /* LG */ + {USB_DEVICE(0x043e, 0x7a01)}, {} }; -- cgit v1.1 From 0888e883ea5ff8fac27e813256d6c1eaede5a234 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Sat, 12 Jun 2010 11:50:13 -0400 Subject: drm/radeon/kms: fix bandwidth calculation when sideport is present Fixes fdo bug 27529: https://bugs.freedesktop.org/show_bug.cgi?id=27529 Reported-by: steckdenis@yahoo.fr Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/rs690.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c index bcc3319..64b94a8 100644 --- a/drivers/gpu/drm/radeon/rs690.c +++ b/drivers/gpu/drm/radeon/rs690.c @@ -228,10 +228,6 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, fixed20_12 a, b, c; fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width; fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency; - /* FIXME: detect IGP with sideport memory, i don't think there is any - * such product available - */ - bool sideport = false; if (!crtc->base.enabled) { /* FIXME: wouldn't it better to set priority mark to maximum */ @@ -300,7 +296,7 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, /* Maximun bandwidth is the minimun bandwidth of all component */ rdev->pm.max_bandwidth = rdev->pm.core_bandwidth; - if (sideport) { + if (rdev->mc.igp_sideport_enabled) { if (rdev->pm.max_bandwidth.full > rdev->pm.sideport_bandwidth.full && rdev->pm.sideport_bandwidth.full) rdev->pm.max_bandwidth = rdev->pm.sideport_bandwidth; -- cgit v1.1 From 09bdf591f4724c7d0328d4d7b8808492addb5a28 Mon Sep 17 00:00:00 2001 From: Cedric Godin Date: Fri, 11 Jun 2010 14:40:56 -0400 Subject: drm/radeon/kms: fix dpms state on resume When suspending, we turn the display hw off, at resume the screen will stay black. This patch turn it on. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=16180 Signed-off-by: Cedric Godin Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_device.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index f10faed..5f31731 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -779,6 +779,7 @@ int radeon_suspend_kms(struct drm_device *dev, pm_message_t state) int radeon_resume_kms(struct drm_device *dev) { + struct drm_connector *connector; struct radeon_device *rdev = dev->dev_private; if (rdev->powered_down) @@ -797,6 +798,12 @@ int radeon_resume_kms(struct drm_device *dev) radeon_resume(rdev); radeon_pm_resume(rdev); radeon_restore_bios_scratch_regs(rdev); + + /* turn on display hw */ + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON); + } + radeon_fbdev_set_suspend(rdev, 0); release_console_sem(); -- cgit v1.1 From a5f798ce2b9de4b14c46cb68d58c488dc1b8e215 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 10 Jun 2010 17:06:01 -0400 Subject: drm/radeon/kms: fix DP after DPMS cycle The transmitter needs to be enabled before the link is trained. Reported-By: Lars Doelle Signed-off-by: Alex Deucher Cc: stable Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_encoders.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c index 1ebb100..e0b30b2 100644 --- a/drivers/gpu/drm/radeon/radeon_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_encoders.c @@ -1072,6 +1072,8 @@ radeon_atom_encoder_dpms(struct drm_encoder *encoder, int mode) if (is_dig) { switch (mode) { case DRM_MODE_DPMS_ON: + if (!ASIC_IS_DCE4(rdev)) + atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0); if (atombios_get_encoder_mode(encoder) == ATOM_ENCODER_MODE_DP) { struct drm_connector *connector = radeon_get_connector_for_encoder(encoder); @@ -1079,8 +1081,6 @@ radeon_atom_encoder_dpms(struct drm_encoder *encoder, int mode) if (ASIC_IS_DCE4(rdev)) atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_VIDEO_ON); } - if (!ASIC_IS_DCE4(rdev)) - atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0); break; case DRM_MODE_DPMS_STANDBY: case DRM_MODE_DPMS_SUSPEND: -- cgit v1.1 From b829e011f6f9eed8c4dd41eaf02bdbb3a3ad837f Mon Sep 17 00:00:00 2001 From: Adam Jackson Date: Thu, 10 Jun 2010 13:33:26 -0400 Subject: drm/fb: Fix video= mode computation Reduced blanking is valid only when doing CVT modes. Also, generate GTF modes unless CVT was requested; CVT devices are required to support GTF, but the reverse is not true. [airlied: fix typo] Signed-off-by: Adam Jackson Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_fb_helper.c | 19 +++++++++++++------ 1 file changed, 13 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 08c4c92..1f2cc6b 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -146,7 +146,7 @@ static bool drm_fb_helper_connector_parse_command_line(struct drm_fb_helper_conn cvt = 1; break; case 'R': - if (!cvt) + if (cvt) rb = 1; break; case 'm': @@ -1024,11 +1024,18 @@ static struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_conne } create_mode: - mode = drm_cvt_mode(fb_helper_conn->connector->dev, cmdline_mode->xres, - cmdline_mode->yres, - cmdline_mode->refresh_specified ? cmdline_mode->refresh : 60, - cmdline_mode->rb, cmdline_mode->interlace, - cmdline_mode->margins); + if (cmdline_mode->cvt) + mode = drm_cvt_mode(fb_helper_conn->connector->dev, + cmdline_mode->xres, cmdline_mode->yres, + cmdline_mode->refresh_specified ? cmdline_mode->refresh : 60, + cmdline_mode->rb, cmdline_mode->interlace, + cmdline_mode->margins); + else + mode = drm_gtf_mode(fb_helper_conn->connector->dev, + cmdline_mode->xres, cmdline_mode->yres, + cmdline_mode->refresh_specified ? cmdline_mode->refresh : 60, + cmdline_mode->interlace, + cmdline_mode->margins); drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); list_add(&mode->head, &fb_helper_conn->connector->modes); return mode; -- cgit v1.1 From 76a7142a083434fe55b14f01aa2624733fea39b2 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 11 Jun 2010 01:09:05 -0400 Subject: drm/radeon: add fake RN50 table for powerpc This works well enough on a js21, but it would be nice if IBM could supply more tables for the later Power6/7 machines. Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_combios.c | 32 ++++++++++++++++++++++++++++++++ drivers/gpu/drm/radeon/radeon_mode.h | 1 + 2 files changed, 33 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 1bee2f9..08e156a 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -1411,6 +1411,11 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev) rdev->mode_info.connector_table = CT_IMAC_G5_ISIGHT; } else #endif /* CONFIG_PPC_PMAC */ +#ifdef CONFIG_PPC64 + if (ASIC_IS_RN50(rdev)) + rdev->mode_info.connector_table = CT_RN50_POWER; + else +#endif rdev->mode_info.connector_table = CT_GENERIC; } @@ -1853,6 +1858,33 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev) CONNECTOR_OBJECT_ID_SVIDEO, &hpd); break; + case CT_RN50_POWER: + DRM_INFO("Connector Table: %d (rn50-power)\n", + rdev->mode_info.connector_table); + /* VGA - primary dac */ + ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_VGA_DDC); + hpd.hpd = RADEON_HPD_NONE; + radeon_add_legacy_encoder(dev, + radeon_get_encoder_id(dev, + ATOM_DEVICE_CRT1_SUPPORT, + 1), + ATOM_DEVICE_CRT1_SUPPORT); + radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_CRT1_SUPPORT, + DRM_MODE_CONNECTOR_VGA, &ddc_i2c, + CONNECTOR_OBJECT_ID_VGA, + &hpd); + ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_CRT2_DDC); + hpd.hpd = RADEON_HPD_NONE; + radeon_add_legacy_encoder(dev, + radeon_get_encoder_id(dev, + ATOM_DEVICE_CRT2_SUPPORT, + 2), + ATOM_DEVICE_CRT2_SUPPORT); + radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT2_SUPPORT, + DRM_MODE_CONNECTOR_VGA, &ddc_i2c, + CONNECTOR_OBJECT_ID_VGA, + &hpd); + break; default: DRM_INFO("Connector table: %d (invalid)\n", rdev->mode_info.connector_table); diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h index 67358baf..95696aa 100644 --- a/drivers/gpu/drm/radeon/radeon_mode.h +++ b/drivers/gpu/drm/radeon/radeon_mode.h @@ -206,6 +206,7 @@ enum radeon_connector_table { CT_MINI_INTERNAL, CT_IMAC_G5_ISIGHT, CT_EMAC, + CT_RN50_POWER, }; enum radeon_dvo_chip { -- cgit v1.1 From f9da52d54eb0e8822b5e7f32ab1cfa6522533d6e Mon Sep 17 00:00:00 2001 From: Roland Scheidegger Date: Sat, 12 Jun 2010 12:12:37 -0400 Subject: drm/radeon/kms: CS checker texture fixes for r1xx/r2xx/r3xx fixes: https://bugs.freedesktop.org/show_bug.cgi?id=28459 agd5f: apply to r1xx/r2xx as well. Signed-off-by: Roland Scheidegger Cc: stable@kernel.org Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r100.c | 3 +++ drivers/gpu/drm/radeon/r200.c | 3 +++ drivers/gpu/drm/radeon/r300.c | 5 +++++ 3 files changed, 11 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 1930db6..d524efd 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -1628,6 +1628,7 @@ static int r100_packet0_check(struct radeon_cs_parser *p, case RADEON_TXFORMAT_RGB332: case RADEON_TXFORMAT_Y8: track->textures[i].cpp = 1; + track->textures[i].compress_format = R100_TRACK_COMP_NONE; break; case RADEON_TXFORMAT_AI88: case RADEON_TXFORMAT_ARGB1555: @@ -1639,12 +1640,14 @@ static int r100_packet0_check(struct radeon_cs_parser *p, case RADEON_TXFORMAT_LDUDV655: case RADEON_TXFORMAT_DUDV88: track->textures[i].cpp = 2; + track->textures[i].compress_format = R100_TRACK_COMP_NONE; break; case RADEON_TXFORMAT_ARGB8888: case RADEON_TXFORMAT_RGBA8888: case RADEON_TXFORMAT_SHADOW32: case RADEON_TXFORMAT_LDUDUV8888: track->textures[i].cpp = 4; + track->textures[i].compress_format = R100_TRACK_COMP_NONE; break; case RADEON_TXFORMAT_DXT1: track->textures[i].cpp = 1; diff --git a/drivers/gpu/drm/radeon/r200.c b/drivers/gpu/drm/radeon/r200.c index 85617c3..a03f893 100644 --- a/drivers/gpu/drm/radeon/r200.c +++ b/drivers/gpu/drm/radeon/r200.c @@ -450,6 +450,7 @@ int r200_packet0_check(struct radeon_cs_parser *p, case R200_TXFORMAT_RGB332: case R200_TXFORMAT_Y8: track->textures[i].cpp = 1; + track->textures[i].compress_format = R100_TRACK_COMP_NONE; break; case R200_TXFORMAT_AI88: case R200_TXFORMAT_ARGB1555: @@ -461,6 +462,7 @@ int r200_packet0_check(struct radeon_cs_parser *p, case R200_TXFORMAT_DVDU88: case R200_TXFORMAT_AVYU4444: track->textures[i].cpp = 2; + track->textures[i].compress_format = R100_TRACK_COMP_NONE; break; case R200_TXFORMAT_ARGB8888: case R200_TXFORMAT_RGBA8888: @@ -468,6 +470,7 @@ int r200_packet0_check(struct radeon_cs_parser *p, case R200_TXFORMAT_BGR111110: case R200_TXFORMAT_LDVDU8888: track->textures[i].cpp = 4; + track->textures[i].compress_format = R100_TRACK_COMP_NONE; break; case R200_TXFORMAT_DXT1: track->textures[i].cpp = 1; diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c index b2f9efe..7e81db5 100644 --- a/drivers/gpu/drm/radeon/r300.c +++ b/drivers/gpu/drm/radeon/r300.c @@ -881,6 +881,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, case R300_TX_FORMAT_Y4X4: case R300_TX_FORMAT_Z3Y3X2: track->textures[i].cpp = 1; + track->textures[i].compress_format = R100_TRACK_COMP_NONE; break; case R300_TX_FORMAT_X16: case R300_TX_FORMAT_Y8X8: @@ -892,6 +893,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p, case R300_TX_FORMAT_B8G8_B8G8: case R300_TX_FORMAT_G8R8_G8B8: track->textures[i].cpp = 2; + track->textures[i].compress_format = R100_TRACK_COMP_NONE; break; case R300_TX_FORMAT_Y16X16: case R300_TX_FORMAT_Z11Y11X10: @@ -902,14 +904,17 @@ static int r300_packet0_check(struct radeon_cs_parser *p, case R300_TX_FORMAT_FL_I32: case 0x1e: track->textures[i].cpp = 4; + track->textures[i].compress_format = R100_TRACK_COMP_NONE; break; case R300_TX_FORMAT_W16Z16Y16X16: case R300_TX_FORMAT_FL_R16G16B16A16: case R300_TX_FORMAT_FL_I32A32: track->textures[i].cpp = 8; + track->textures[i].compress_format = R100_TRACK_COMP_NONE; break; case R300_TX_FORMAT_FL_R32G32B32A32: track->textures[i].cpp = 16; + track->textures[i].compress_format = R100_TRACK_COMP_NONE; break; case R300_TX_FORMAT_DXT1: track->textures[i].cpp = 1; -- cgit v1.1 From 688acaa2897462e4c5e2482496e2868db0760809 Mon Sep 17 00:00:00 2001 From: Roland Scheidegger Date: Sat, 12 Jun 2010 13:31:10 -0400 Subject: drm/radeon/r200: handle more hw tex coord types Code did not handle projected 2d and depth coordinates, meaning potentially set 3d or cube special handling might stick. (Not sure what depth coord actually does, but I guess handling it like a normal coordinate is the right thing to do.) Might be related to https://bugs.freedesktop.org/show_bug.cgi?id=26428 Signed-off-by: sroland@vmware.com Signed-off-by: Alex Deucher Cc: stable Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r200.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/r200.c b/drivers/gpu/drm/radeon/r200.c index a03f893..0266d72 100644 --- a/drivers/gpu/drm/radeon/r200.c +++ b/drivers/gpu/drm/radeon/r200.c @@ -415,6 +415,8 @@ int r200_packet0_check(struct radeon_cs_parser *p, /* 2D, 3D, CUBE */ switch (tmp) { case 0: + case 3: + case 4: case 5: case 6: case 7: -- cgit v1.1 From 37cf6b03f9f28c62dafb0b9ce5f1ba29c8baffa9 Mon Sep 17 00:00:00 2001 From: Roland Scheidegger Date: Sat, 12 Jun 2010 13:31:11 -0400 Subject: drm/radeon/r100/r200: fix calculation of compressed cube maps This needs similar handling to other compressed textures. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=26428 Signed-off-by: sroland@vmware.com Signed-off-by: Alex Deucher Cc: stable Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r100.c | 58 +++++++++++++++++++++++-------------------- 1 file changed, 31 insertions(+), 27 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index d524efd..3970e62 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -3158,33 +3158,6 @@ static inline void r100_cs_track_texture_print(struct r100_cs_track_texture *t) DRM_ERROR("compress format %d\n", t->compress_format); } -static int r100_cs_track_cube(struct radeon_device *rdev, - struct r100_cs_track *track, unsigned idx) -{ - unsigned face, w, h; - struct radeon_bo *cube_robj; - unsigned long size; - - for (face = 0; face < 5; face++) { - cube_robj = track->textures[idx].cube_info[face].robj; - w = track->textures[idx].cube_info[face].width; - h = track->textures[idx].cube_info[face].height; - - size = w * h; - size *= track->textures[idx].cpp; - - size += track->textures[idx].cube_info[face].offset; - - if (size > radeon_bo_size(cube_robj)) { - DRM_ERROR("Cube texture offset greater than object size %lu %lu\n", - size, radeon_bo_size(cube_robj)); - r100_cs_track_texture_print(&track->textures[idx]); - return -1; - } - } - return 0; -} - static int r100_track_compress_size(int compress_format, int w, int h) { int block_width, block_height, block_bytes; @@ -3215,6 +3188,37 @@ static int r100_track_compress_size(int compress_format, int w, int h) return sz; } +static int r100_cs_track_cube(struct radeon_device *rdev, + struct r100_cs_track *track, unsigned idx) +{ + unsigned face, w, h; + struct radeon_bo *cube_robj; + unsigned long size; + unsigned compress_format = track->textures[idx].compress_format; + + for (face = 0; face < 5; face++) { + cube_robj = track->textures[idx].cube_info[face].robj; + w = track->textures[idx].cube_info[face].width; + h = track->textures[idx].cube_info[face].height; + + if (compress_format) { + size = r100_track_compress_size(compress_format, w, h); + } else + size = w * h; + size *= track->textures[idx].cpp; + + size += track->textures[idx].cube_info[face].offset; + + if (size > radeon_bo_size(cube_robj)) { + DRM_ERROR("Cube texture offset greater than object size %lu %lu\n", + size, radeon_bo_size(cube_robj)); + r100_cs_track_texture_print(&track->textures[idx]); + return -1; + } + } + return 0; +} + static int r100_cs_track_texture_check(struct radeon_device *rdev, struct r100_cs_track *track) { -- cgit v1.1 From 7c2a9acf856f150a9fc3efbaa0be44f97c30f6ca Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Wed, 16 Jun 2010 10:45:22 +0200 Subject: drm/ttm: non pooled page allocation should have GFP_USER set Non pooled page allocation should have GFP_USER set so allocation can wait and reclaim page from other process (ie non atomic). Signed-off-by: Jerome Glisse Signed-off-by: Dave Airlie --- drivers/gpu/drm/ttm/ttm_page_alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c index ef91069..2f04757 100644 --- a/drivers/gpu/drm/ttm/ttm_page_alloc.c +++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c @@ -667,7 +667,7 @@ int ttm_get_pages(struct list_head *pages, int flags, { struct ttm_page_pool *pool = ttm_get_pool(flags, cstate); struct page *p = NULL; - int gfp_flags = 0; + int gfp_flags = GFP_USER; int r; /* set zero flag for page allocation if required */ -- cgit v1.1 From 4cdb82b95a48a64e5c20bffd63a549675c0d4848 Mon Sep 17 00:00:00 2001 From: Matt Turner Date: Sat, 19 Jun 2010 14:13:45 -0400 Subject: drm/radeon/kms: return ret in cursor_set failure path We were returning 0 in both the success and failure paths. Noticed while investigating FDO bug 26403. Signed-off-by: Matt Turner Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_cursor.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c index b7023ff..4eb67c0 100644 --- a/drivers/gpu/drm/radeon/radeon_cursor.c +++ b/drivers/gpu/drm/radeon/radeon_cursor.c @@ -194,7 +194,7 @@ unpin: fail: drm_gem_object_unreference_unlocked(obj); - return 0; + return ret; } int radeon_crtc_cursor_move(struct drm_crtc *crtc, -- cgit v1.1 From f96b35cd6f499d1219e5c1aac95f818b3e566e67 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 16 Jun 2010 12:24:07 -0400 Subject: drm/radeon/kms: fix typo in evergreen_gpu_init Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/evergreen.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 4b6623d..38c500e 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -1222,11 +1222,11 @@ static void evergreen_gpu_init(struct radeon_device *rdev) ps_thread_count = 128; sq_thread_resource_mgmt = NUM_PS_THREADS(ps_thread_count); - sq_thread_resource_mgmt |= NUM_VS_THREADS(((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8; - sq_thread_resource_mgmt |= NUM_GS_THREADS(((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8; - sq_thread_resource_mgmt |= NUM_ES_THREADS(((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8; - sq_thread_resource_mgmt_2 = NUM_HS_THREADS(((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8; - sq_thread_resource_mgmt_2 |= NUM_LS_THREADS(((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8; + sq_thread_resource_mgmt |= NUM_VS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8); + sq_thread_resource_mgmt |= NUM_GS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8); + sq_thread_resource_mgmt |= NUM_ES_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8); + sq_thread_resource_mgmt_2 = NUM_HS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8); + sq_thread_resource_mgmt_2 |= NUM_LS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8); sq_stack_resource_mgmt_1 = NUM_PS_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6); sq_stack_resource_mgmt_1 |= NUM_VS_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6); -- cgit v1.1 From 8b5d8dec7c85b6f1a4ae9c57500f1378d79556bc Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 21 Jun 2010 13:31:38 +1000 Subject: drm/radeon/kms: don't read attempt to read bios from VRAM on unposted GPU. Since the VGA switcheroo, we'd attempt to read the BIOS from VRAM on startup but on some unposted cards this can cause hangs/crashes. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=28592 (further problem pointed out by agd5f on IGP systems) Reported-by: Reilithion on #radeon Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_bios.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c index fbba938..2c92137 100644 --- a/drivers/gpu/drm/radeon/radeon_bios.c +++ b/drivers/gpu/drm/radeon/radeon_bios.c @@ -48,6 +48,10 @@ static bool igp_read_bios_from_vram(struct radeon_device *rdev) resource_size_t vram_base; resource_size_t size = 256 * 1024; /* ??? */ + if (!(rdev->flags & RADEON_IS_IGP)) + if (!radeon_card_posted(rdev)) + return false; + rdev->bios = NULL; vram_base = drm_get_resource_start(rdev->ddev, 0); bios = ioremap(vram_base, size); -- cgit v1.1 From 2ff776cf77f1837a0397bc876e086e8a54274b09 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 8 Jun 2010 19:44:36 -0400 Subject: drm/radeon/kms: disable frac fb dividers for rs6xx Should fix fdo bug 28331: https://bugs.freedesktop.org/show_bug.cgi?id=28331 Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/atombios_crtc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index f3f2827..8c2d647 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -498,7 +498,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc, if ((rdev->family == CHIP_RS600) || (rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) - pll->flags |= (RADEON_PLL_USE_FRAC_FB_DIV | + pll->flags |= (/*RADEON_PLL_USE_FRAC_FB_DIV |*/ RADEON_PLL_PREFER_CLOSEST_LOWER); if (ASIC_IS_DCE32(rdev) && mode->clock > 200000) /* range limits??? */ -- cgit v1.1 From 46fcd2b3dbf58a448b621d3d2f492a0e90223a3a Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Thu, 3 Jun 2010 19:34:48 +0200 Subject: drm/radeon/kms: Force HDP_NONSURF to maximum size HDP non surface should cover the whole VRAM but we were misscomputing the size and we endup in some case not covering the VRAM at all (if VRAM size were > 1G). Covering more than the VRAM size shouldn't be an issue. Fix : https://bugs.freedesktop.org/show_bug.cgi?id=28016 [airlied: add evergreen fix] Signed-off-by: Jerome Glisse Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/evergreen.c | 2 +- drivers/gpu/drm/radeon/r600.c | 2 +- drivers/gpu/drm/radeon/rv770.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 38c500e..37c7a43 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -607,7 +607,7 @@ static void evergreen_mc_program(struct radeon_device *rdev) WREG32(MC_VM_FB_LOCATION, tmp); WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8)); WREG32(HDP_NONSURFACE_INFO, (2 << 7)); - WREG32(HDP_NONSURFACE_SIZE, (rdev->mc.mc_vram_size - 1) | 0x3FF); + WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF); if (rdev->flags & RADEON_IS_AGP) { WREG32(MC_VM_AGP_TOP, rdev->mc.gtt_end >> 16); WREG32(MC_VM_AGP_BOT, rdev->mc.gtt_start >> 16); diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 0e91871..b32064d 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -1097,7 +1097,7 @@ static void r600_mc_program(struct radeon_device *rdev) WREG32(MC_VM_FB_LOCATION, tmp); WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8)); WREG32(HDP_NONSURFACE_INFO, (2 << 7)); - WREG32(HDP_NONSURFACE_SIZE, rdev->mc.mc_vram_size | 0x3FF); + WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF); if (rdev->flags & RADEON_IS_AGP) { WREG32(MC_VM_AGP_TOP, rdev->mc.gtt_end >> 22); WREG32(MC_VM_AGP_BOT, rdev->mc.gtt_start >> 22); diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index cec536c..b7fd820 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -224,7 +224,7 @@ static void rv770_mc_program(struct radeon_device *rdev) WREG32(MC_VM_FB_LOCATION, tmp); WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8)); WREG32(HDP_NONSURFACE_INFO, (2 << 7)); - WREG32(HDP_NONSURFACE_SIZE, (rdev->mc.mc_vram_size - 1) | 0x3FF); + WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF); if (rdev->flags & RADEON_IS_AGP) { WREG32(MC_VM_AGP_TOP, rdev->mc.gtt_end >> 16); WREG32(MC_VM_AGP_BOT, rdev->mc.gtt_start >> 16); -- cgit v1.1 From 07bb084c9306107204ef5691d4ce6f61213af6c2 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 22 Jun 2010 21:58:26 -0400 Subject: drm/radeon/kms: avoid oops on mac r4xx cards They don't have an atombios so don't attempt to use it for eng/mem clocks. Reported by spoonb on #radeon fixes: https://bugs.freedesktop.org/show_bug.cgi?id=28671 Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_asic.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 87f7e2c..646f96f 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -780,6 +780,13 @@ int radeon_asic_init(struct radeon_device *rdev) case CHIP_R423: case CHIP_RV410: rdev->asic = &r420_asic; + /* handle macs */ + if (rdev->bios == NULL) { + rdev->asic->get_engine_clock = &radeon_legacy_get_engine_clock; + rdev->asic->set_engine_clock = &radeon_legacy_set_engine_clock; + rdev->asic->get_memory_clock = &radeon_legacy_get_memory_clock; + rdev->asic->set_memory_clock = NULL; + } break; case CHIP_RS400: case CHIP_RS480: -- cgit v1.1 From 09d7e785f70e99abe4ec031c84f0a6a8b2d0be3a Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 23 Jun 2010 18:27:11 -0400 Subject: drm/radeon/kms: fix typos in evergreen command checker Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/evergreen_cs.c | 4 ++-- drivers/gpu/drm/radeon/reg_srcs/evergreen | 10 +++++----- 2 files changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c index 64516b9..010963d 100644 --- a/drivers/gpu/drm/radeon/evergreen_cs.c +++ b/drivers/gpu/drm/radeon/evergreen_cs.c @@ -1197,7 +1197,7 @@ static int evergreen_packet3_check(struct radeon_cs_parser *p, DRM_ERROR("bad SET_RESOURCE (tex)\n"); return -EINVAL; } - ib[idx+1+(i*8)+3] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff); + ib[idx+1+(i*8)+2] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff); if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO) ib[idx+1+(i*8)+1] |= TEX_ARRAY_MODE(ARRAY_2D_TILED_THIN1); else if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO) @@ -1209,7 +1209,7 @@ static int evergreen_packet3_check(struct radeon_cs_parser *p, DRM_ERROR("bad SET_RESOURCE (tex)\n"); return -EINVAL; } - ib[idx+1+(i*8)+4] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff); + ib[idx+1+(i*8)+3] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff); mipmap = reloc->robj; r = evergreen_check_texture_resource(p, idx+1+(i*8), texture, mipmap); diff --git a/drivers/gpu/drm/radeon/reg_srcs/evergreen b/drivers/gpu/drm/radeon/reg_srcs/evergreen index b5c757f..f78fd59 100644 --- a/drivers/gpu/drm/radeon/reg_srcs/evergreen +++ b/drivers/gpu/drm/radeon/reg_srcs/evergreen @@ -80,8 +80,8 @@ evergreen 0x9400 0x00028010 DB_RENDER_OVERRIDE2 0x00028028 DB_STENCIL_CLEAR 0x0002802C DB_DEPTH_CLEAR -0x00028034 PA_SC_SCREEN_SCISSOR_BR 0x00028030 PA_SC_SCREEN_SCISSOR_TL +0x00028034 PA_SC_SCREEN_SCISSOR_BR 0x0002805C DB_DEPTH_SLICE 0x00028140 SQ_ALU_CONST_BUFFER_SIZE_PS_0 0x00028144 SQ_ALU_CONST_BUFFER_SIZE_PS_1 @@ -460,8 +460,8 @@ evergreen 0x9400 0x00028844 SQ_PGM_RESOURCES_PS 0x00028848 SQ_PGM_RESOURCES_2_PS 0x0002884C SQ_PGM_EXPORTS_PS -0x0002885C SQ_PGM_RESOURCES_VS -0x00028860 SQ_PGM_RESOURCES_2_VS +0x00028860 SQ_PGM_RESOURCES_VS +0x00028864 SQ_PGM_RESOURCES_2_VS 0x00028878 SQ_PGM_RESOURCES_GS 0x0002887C SQ_PGM_RESOURCES_2_GS 0x00028890 SQ_PGM_RESOURCES_ES @@ -469,8 +469,8 @@ evergreen 0x9400 0x000288A8 SQ_PGM_RESOURCES_FS 0x000288BC SQ_PGM_RESOURCES_HS 0x000288C0 SQ_PGM_RESOURCES_2_HS -0x000288D0 SQ_PGM_RESOURCES_LS -0x000288D4 SQ_PGM_RESOURCES_2_LS +0x000288D4 SQ_PGM_RESOURCES_LS +0x000288D8 SQ_PGM_RESOURCES_2_LS 0x000288E8 SQ_LDS_ALLOC 0x000288EC SQ_LDS_ALLOC_PS 0x000288F0 SQ_VTX_SEMANTIC_CLEAR -- cgit v1.1 From 60a4a3e0ce0b575e8b4cb6bf39d2c40e403bdfc7 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 29 Jun 2010 17:03:35 -0400 Subject: drm/radeon/kms: add some missing regs to evergreen gpu init Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/evergreen.c | 23 +++++++++++++++++++++++ drivers/gpu/drm/radeon/evergreend.h | 3 +++ 2 files changed, 26 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 37c7a43..1caf625 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -1260,6 +1260,9 @@ static void evergreen_gpu_init(struct radeon_device *rdev) WREG32(VGT_GS_VERTEX_REUSE, 16); WREG32(PA_SC_LINE_STIPPLE_STATE, 0); + WREG32(VGT_VERTEX_REUSE_BLOCK_CNTL, 14); + WREG32(VGT_OUT_DEALLOC_CNTL, 16); + WREG32(CB_PERF_CTR0_SEL_0, 0); WREG32(CB_PERF_CTR0_SEL_1, 0); WREG32(CB_PERF_CTR1_SEL_0, 0); @@ -1269,6 +1272,26 @@ static void evergreen_gpu_init(struct radeon_device *rdev) WREG32(CB_PERF_CTR3_SEL_0, 0); WREG32(CB_PERF_CTR3_SEL_1, 0); + /* clear render buffer base addresses */ + WREG32(CB_COLOR0_BASE, 0); + WREG32(CB_COLOR1_BASE, 0); + WREG32(CB_COLOR2_BASE, 0); + WREG32(CB_COLOR3_BASE, 0); + WREG32(CB_COLOR4_BASE, 0); + WREG32(CB_COLOR5_BASE, 0); + WREG32(CB_COLOR6_BASE, 0); + WREG32(CB_COLOR7_BASE, 0); + WREG32(CB_COLOR8_BASE, 0); + WREG32(CB_COLOR9_BASE, 0); + WREG32(CB_COLOR10_BASE, 0); + WREG32(CB_COLOR11_BASE, 0); + + /* set the shader const cache sizes to 0 */ + for (i = SQ_ALU_CONST_BUFFER_SIZE_PS_0; i < 0x28200; i += 4) + WREG32(i, 0); + for (i = SQ_ALU_CONST_BUFFER_SIZE_HS_0; i < 0x29000; i += 4) + WREG32(i, 0); + hdp_host_path_cntl = RREG32(HDP_HOST_PATH_CNTL); WREG32(HDP_HOST_PATH_CNTL, hdp_host_path_cntl); diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h index 79683f6..a1cd621 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -713,6 +713,9 @@ #define SQ_GSVS_RING_OFFSET_2 0x28930 #define SQ_GSVS_RING_OFFSET_3 0x28934 +#define SQ_ALU_CONST_BUFFER_SIZE_PS_0 0x28140 +#define SQ_ALU_CONST_BUFFER_SIZE_HS_0 0x28f80 + #define SQ_ALU_CONST_CACHE_PS_0 0x28940 #define SQ_ALU_CONST_CACHE_PS_1 0x28944 #define SQ_ALU_CONST_CACHE_PS_2 0x28948 -- cgit v1.1 From 580b4fffbbdc3c899ee1f8189ba321bd60b48840 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 30 Jun 2010 13:26:11 +1000 Subject: drm/radeon: add quirk to make HP nx6125 laptop resume. For some reason on resume, executing the BIOS scripts locks up the whole chipset, by avoiding the dynclk table the machine resumes properly and seems to function okay. Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_combios.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 08e156a..392bc4d 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -3051,6 +3051,14 @@ void radeon_combios_asic_init(struct drm_device *dev) combios_write_ram_size(dev); } + /* quirk for rs4xx HP nx6125 laptop to make it resume + * - it hangs on resume inside the dynclk 1 table. + */ + if (rdev->family == CHIP_RS480 && + rdev->pdev->subsystem_vendor == 0x103c && + rdev->pdev->subsystem_device == 0x308b) + return; + /* DYN CLK 1 */ table = combios_get_table_offset(dev, COMBIOS_DYN_CLK_1_TABLE); if (table) -- cgit v1.1 From f892034a8ce80ed7098f667aae2eb6300e570603 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 30 Jun 2010 12:02:03 -0400 Subject: drm/radeon/kms/igp: fix possible divide by 0 in bandwidth code (v2) Some IGP systems specify the system memory clock in the Firmware table rather than the IGP info table. Check both and make sure we have a value system memory clock value. v2: make sure rs690_pm_info is called on rs780/rs880 as well. fixes a regression since 07d4190327b02ab3aaad25a2d168f79d92e8f8c2. Reported-by: Markus Trippelsdorf Signed-off-by: Alex Deucher Tested-by: Markus Trippelsdorf Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r600.c | 4 +++- drivers/gpu/drm/radeon/radeon.h | 1 + drivers/gpu/drm/radeon/rs690.c | 35 +++++++++++++++++++---------------- 3 files changed, 23 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index b32064d..90f2817 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -1219,8 +1219,10 @@ int r600_mc_init(struct radeon_device *rdev) rdev->mc.visible_vram_size = rdev->mc.aper_size; r600_vram_gtt_location(rdev, &rdev->mc); - if (rdev->flags & RADEON_IS_IGP) + if (rdev->flags & RADEON_IS_IGP) { + rs690_pm_info(rdev); rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev); + } radeon_update_bandwidth_info(rdev); return 0; } diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 8e1d44c..5bbf97e 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -177,6 +177,7 @@ void radeon_pm_resume(struct radeon_device *rdev); void radeon_combios_get_power_modes(struct radeon_device *rdev); void radeon_atombios_get_power_modes(struct radeon_device *rdev); void radeon_atom_set_voltage(struct radeon_device *rdev, u16 level); +void rs690_pm_info(struct radeon_device *rdev); /* * Fences. diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c index 64b94a8..f4f0a61 100644 --- a/drivers/gpu/drm/radeon/rs690.c +++ b/drivers/gpu/drm/radeon/rs690.c @@ -79,7 +79,13 @@ void rs690_pm_info(struct radeon_device *rdev) tmp.full = dfixed_const(100); rdev->pm.igp_sideport_mclk.full = dfixed_const(info->info.ulBootUpMemoryClock); rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp); - rdev->pm.igp_system_mclk.full = dfixed_const(le16_to_cpu(info->info.usK8MemoryClock)); + if (info->info.usK8MemoryClock) + rdev->pm.igp_system_mclk.full = dfixed_const(le16_to_cpu(info->info.usK8MemoryClock)); + else if (rdev->clock.default_mclk) { + rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk); + rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp); + } else + rdev->pm.igp_system_mclk.full = dfixed_const(400); rdev->pm.igp_ht_link_clk.full = dfixed_const(le16_to_cpu(info->info.usFSBClock)); rdev->pm.igp_ht_link_width.full = dfixed_const(info->info.ucHTLinkWidth); break; @@ -87,34 +93,31 @@ void rs690_pm_info(struct radeon_device *rdev) tmp.full = dfixed_const(100); rdev->pm.igp_sideport_mclk.full = dfixed_const(info->info_v2.ulBootUpSidePortClock); rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp); - rdev->pm.igp_system_mclk.full = dfixed_const(info->info_v2.ulBootUpUMAClock); + if (info->info_v2.ulBootUpUMAClock) + rdev->pm.igp_system_mclk.full = dfixed_const(info->info_v2.ulBootUpUMAClock); + else if (rdev->clock.default_mclk) + rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk); + else + rdev->pm.igp_system_mclk.full = dfixed_const(66700); rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp); rdev->pm.igp_ht_link_clk.full = dfixed_const(info->info_v2.ulHTLinkFreq); rdev->pm.igp_ht_link_clk.full = dfixed_div(rdev->pm.igp_ht_link_clk, tmp); rdev->pm.igp_ht_link_width.full = dfixed_const(le16_to_cpu(info->info_v2.usMinHTLinkWidth)); break; default: - tmp.full = dfixed_const(100); /* We assume the slower possible clock ie worst case */ - /* DDR 333Mhz */ - rdev->pm.igp_sideport_mclk.full = dfixed_const(333); - /* FIXME: system clock ? */ - rdev->pm.igp_system_mclk.full = dfixed_const(100); - rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp); - rdev->pm.igp_ht_link_clk.full = dfixed_const(200); + rdev->pm.igp_sideport_mclk.full = dfixed_const(200); + rdev->pm.igp_system_mclk.full = dfixed_const(200); + rdev->pm.igp_ht_link_clk.full = dfixed_const(1000); rdev->pm.igp_ht_link_width.full = dfixed_const(8); DRM_ERROR("No integrated system info for your GPU, using safe default\n"); break; } } else { - tmp.full = dfixed_const(100); /* We assume the slower possible clock ie worst case */ - /* DDR 333Mhz */ - rdev->pm.igp_sideport_mclk.full = dfixed_const(333); - /* FIXME: system clock ? */ - rdev->pm.igp_system_mclk.full = dfixed_const(100); - rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp); - rdev->pm.igp_ht_link_clk.full = dfixed_const(200); + rdev->pm.igp_sideport_mclk.full = dfixed_const(200); + rdev->pm.igp_system_mclk.full = dfixed_const(200); + rdev->pm.igp_ht_link_clk.full = dfixed_const(1000); rdev->pm.igp_ht_link_width.full = dfixed_const(8); DRM_ERROR("No integrated system info for your GPU, using safe default\n"); } -- cgit v1.1 From 3f53eb6f84545a7fc55a36657755371f42c63fca Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 17 Jun 2010 23:02:27 +0000 Subject: DRM / radeon / KMS: Fix hibernation regression related to radeon PM (was: Re: [Regression, post-2.6.34] Hibernation broken on machines with radeon/KMS and r300) There is a regression from 2.6.34 related to the recent radeon power management changes, caused by attempting to cancel a delayed work item that's never been scheduled. However, the code as is has some other issues potentially leading to visible problems. First, the mutex around cancel_delayed_work() in radeon_pm_suspend() doesn't really serve any purpose, because cancel_delayed_work() only tries to delete the work's timer. Moreover, it doesn't prevent the work handler from running, so the handler can do some wrong things if it wins the race and in that case it will rearm itself to do some more wrong things going forward. So, I think it's better to wait for the handler to return in case it's already been queued up for execution. Also, it should be prevented from rearming itself in that case. Second, in radeon_set_pm_method() the cancel_delayed_work() is not sufficient to prevent the work handler from running and queing up itself for the next run (the failure scenario is that cancel_delayed_work() returns 0, so the handler is run, it waits on the mutex and then rearms itself after the mutex has been released), so again the work handler should be prevented from rearming itself in that case.. Finally, there's a potential deadlock in radeon_pm_fini(), because cancel_delayed_work_sync() is called under rdev->pm.mutex, but the work handler tries to acquire the same mutex (if it wins the race). Fix the issues described above. Signed-off-by: Rafael J. Wysocki Reviewed-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon.h | 3 ++- drivers/gpu/drm/radeon/radeon_pm.c | 41 +++++++++++++++++++++++++++++++------- 2 files changed, 36 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 5bbf97e..ab61aaa 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -620,7 +620,8 @@ enum radeon_dynpm_state { DYNPM_STATE_DISABLED, DYNPM_STATE_MINIMUM, DYNPM_STATE_PAUSED, - DYNPM_STATE_ACTIVE + DYNPM_STATE_ACTIVE, + DYNPM_STATE_SUSPENDED, }; enum radeon_dynpm_action { DYNPM_ACTION_NONE, diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 63f679a..115d26b 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -397,13 +397,20 @@ static ssize_t radeon_set_pm_method(struct device *dev, rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT; mutex_unlock(&rdev->pm.mutex); } else if (strncmp("profile", buf, strlen("profile")) == 0) { + bool flush_wq = false; + mutex_lock(&rdev->pm.mutex); - rdev->pm.pm_method = PM_METHOD_PROFILE; + if (rdev->pm.pm_method == PM_METHOD_DYNPM) { + cancel_delayed_work(&rdev->pm.dynpm_idle_work); + flush_wq = true; + } /* disable dynpm */ rdev->pm.dynpm_state = DYNPM_STATE_DISABLED; rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE; - cancel_delayed_work(&rdev->pm.dynpm_idle_work); + rdev->pm.pm_method = PM_METHOD_PROFILE; mutex_unlock(&rdev->pm.mutex); + if (flush_wq) + flush_workqueue(rdev->wq); } else { DRM_ERROR("invalid power method!\n"); goto fail; @@ -418,9 +425,18 @@ static DEVICE_ATTR(power_method, S_IRUGO | S_IWUSR, radeon_get_pm_method, radeon void radeon_pm_suspend(struct radeon_device *rdev) { + bool flush_wq = false; + mutex_lock(&rdev->pm.mutex); - cancel_delayed_work(&rdev->pm.dynpm_idle_work); + if (rdev->pm.pm_method == PM_METHOD_DYNPM) { + cancel_delayed_work(&rdev->pm.dynpm_idle_work); + if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE) + rdev->pm.dynpm_state = DYNPM_STATE_SUSPENDED; + flush_wq = true; + } mutex_unlock(&rdev->pm.mutex); + if (flush_wq) + flush_workqueue(rdev->wq); } void radeon_pm_resume(struct radeon_device *rdev) @@ -432,6 +448,12 @@ void radeon_pm_resume(struct radeon_device *rdev) rdev->pm.current_sclk = rdev->clock.default_sclk; rdev->pm.current_mclk = rdev->clock.default_mclk; rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage; + if (rdev->pm.pm_method == PM_METHOD_DYNPM + && rdev->pm.dynpm_state == DYNPM_STATE_SUSPENDED) { + rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE; + queue_delayed_work(rdev->wq, &rdev->pm.dynpm_idle_work, + msecs_to_jiffies(RADEON_IDLE_LOOP_MS)); + } mutex_unlock(&rdev->pm.mutex); radeon_pm_compute_clocks(rdev); } @@ -486,6 +508,8 @@ int radeon_pm_init(struct radeon_device *rdev) void radeon_pm_fini(struct radeon_device *rdev) { if (rdev->pm.num_power_states > 1) { + bool flush_wq = false; + mutex_lock(&rdev->pm.mutex); if (rdev->pm.pm_method == PM_METHOD_PROFILE) { rdev->pm.profile = PM_PROFILE_DEFAULT; @@ -493,13 +517,16 @@ void radeon_pm_fini(struct radeon_device *rdev) radeon_pm_set_clocks(rdev); } else if (rdev->pm.pm_method == PM_METHOD_DYNPM) { /* cancel work */ - cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work); + cancel_delayed_work(&rdev->pm.dynpm_idle_work); + flush_wq = true; /* reset default clocks */ rdev->pm.dynpm_state = DYNPM_STATE_DISABLED; rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT; radeon_pm_set_clocks(rdev); } mutex_unlock(&rdev->pm.mutex); + if (flush_wq) + flush_workqueue(rdev->wq); device_remove_file(rdev->dev, &dev_attr_power_profile); device_remove_file(rdev->dev, &dev_attr_power_method); @@ -720,12 +747,12 @@ static void radeon_dynpm_idle_work_handler(struct work_struct *work) radeon_pm_get_dynpm_state(rdev); radeon_pm_set_clocks(rdev); } + + queue_delayed_work(rdev->wq, &rdev->pm.dynpm_idle_work, + msecs_to_jiffies(RADEON_IDLE_LOOP_MS)); } mutex_unlock(&rdev->pm.mutex); ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched); - - queue_delayed_work(rdev->wq, &rdev->pm.dynpm_idle_work, - msecs_to_jiffies(RADEON_IDLE_LOOP_MS)); } /* -- cgit v1.1 From 773c3fa3a04bf6c9aa7147813beaab66f38e658f Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 25 Jun 2010 16:21:27 -0400 Subject: drm/radeon/kms/pm: fix power state indexing on igp chips in dynpm mode MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=28745 Signed-off-by: Alex Deucher Tested-by: Rafał Miłecki Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r600.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 90f2817..3d6645c 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -130,9 +130,14 @@ void r600_pm_get_dynpm_state(struct radeon_device *rdev) break; } } - } else - rdev->pm.requested_power_state_index = - rdev->pm.current_power_state_index - 1; + } else { + if (rdev->pm.current_power_state_index == 0) + rdev->pm.requested_power_state_index = + rdev->pm.num_power_states - 1; + else + rdev->pm.requested_power_state_index = + rdev->pm.current_power_state_index - 1; + } } rdev->pm.requested_clock_mode_index = 0; /* don't use the power state if crtcs are active and no display flag is set */ -- cgit v1.1 From 2f9c6b0a91a050669dd6df487174de6b96c2774a Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 30 Jun 2010 13:04:08 -0400 Subject: drm/radeon/kms: remove rv100 bios connector quirk Some RV100 cards with 2 VGA ports show up with DVI+VGA, however some boards with DVI+VGA have the same subsystem ids. Better to have a VGA port show up as DVI than having a non-useable DVI port. reported by DHR in irc. Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_combios.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 392bc4d..d1c1d8d 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -1938,15 +1938,6 @@ static bool radeon_apply_legacy_quirks(struct drm_device *dev, return false; } - /* Some RV100 cards with 2 VGA ports show up with DVI+VGA */ - if (dev->pdev->device == 0x5159 && - dev->pdev->subsystem_vendor == 0x1002 && - dev->pdev->subsystem_device == 0x013a) { - if (*legacy_connector == CONNECTOR_DVI_I_LEGACY) - *legacy_connector = CONNECTOR_CRT_LEGACY; - - } - /* X300 card with extra non-existent DVI port */ if (dev->pdev->device == 0x5B60 && dev->pdev->subsystem_vendor == 0x17af && -- cgit v1.1 From f9ce889b8f8384ee29e1be4b34091a932e6e40f3 Mon Sep 17 00:00:00 2001 From: Harry Zhang Date: Thu, 24 Jun 2010 11:34:23 +0800 Subject: libahci: Fix bug in storing EM messages In function ahci_store_em_buffer(), if the input (signed char*) buffer contains negative data, the constructed 32-bit long message data may be wrong. Signed-off-by: Harry Zhang Signed-off-by: Jeff Garzik --- drivers/ata/libahci.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c index 261f86d..81e772a 100644 --- a/drivers/ata/libahci.c +++ b/drivers/ata/libahci.c @@ -324,6 +324,7 @@ static ssize_t ahci_store_em_buffer(struct device *dev, struct ahci_host_priv *hpriv = ap->host->private_data; void __iomem *mmio = hpriv->mmio; void __iomem *em_mmio = mmio + hpriv->em_loc; + const unsigned char *msg_buf = buf; u32 em_ctl, msg; unsigned long flags; int i; @@ -343,8 +344,8 @@ static ssize_t ahci_store_em_buffer(struct device *dev, } for (i = 0; i < size; i += 4) { - msg = buf[i] | buf[i + 1] << 8 | - buf[i + 2] << 16 | buf[i + 3] << 24; + msg = msg_buf[i] | msg_buf[i + 1] << 8 | + msg_buf[i + 2] << 16 | msg_buf[i + 3] << 24; writel(msg, em_mmio + i); } -- cgit v1.1 From c6353b4520788e34098bbf61c73fb9618ca7fdd6 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 17 Jun 2010 11:42:22 +0200 Subject: ahci,ata_generic: let ata_generic handle new MBP w/ MCP89 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For yet unknown reason, MCP89 on MBP 7,1 doesn't work w/ ahci under linux but the controller doesn't require explicit mode setting and works fine with ata_generic. Make ahci ignore the controller on MBP 7,1 and let ata_generic take it for now. Reported in bko#15923. https://bugzilla.kernel.org/show_bug.cgi?id=15923 NVIDIA is investigating why ahci mode doesn't work. Signed-off-by: Tejun Heo Cc: Peer Chen Cc: stable@kernel.org Reported-by: Anders Østhus Reported-by: Andreas Graf Reported-by: Benoit Gschwind Reported-by: Damien Cassou Reported-by: tixetsal@juno.com Signed-off-by: Jeff Garzik --- drivers/ata/ahci.c | 10 ++++++++++ drivers/ata/ata_generic.c | 6 ++++++ 2 files changed, 16 insertions(+) (limited to 'drivers') diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 8ca16f5..f252253 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1053,6 +1053,16 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable) return -ENODEV; + /* + * For some reason, MCP89 on MacBook 7,1 doesn't work with + * ahci, use ata_generic instead. + */ + if (pdev->vendor == PCI_VENDOR_ID_NVIDIA && + pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA && + pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE && + pdev->subsystem_device == 0xcb89) + return -ENODEV; + /* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode. * At the moment, we can only use the AHCI mode. Let the users know * that for SAS drives they're out of luck. diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c index 573158a..d4ccf74 100644 --- a/drivers/ata/ata_generic.c +++ b/drivers/ata/ata_generic.c @@ -168,6 +168,12 @@ static struct pci_device_id ata_generic[] = { { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C561), }, { PCI_DEVICE(PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C558), }, { PCI_DEVICE(PCI_VENDOR_ID_CENATEK,PCI_DEVICE_ID_CENATEK_IDE), }, + /* + * For some reason, MCP89 on MacBook 7,1 doesn't work with + * ahci, use ata_generic instead. + */ + { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA, + PCI_VENDOR_ID_APPLE, 0xcb89, }, #if !defined(CONFIG_PATA_TOSHIBA) && !defined(CONFIG_PATA_TOSHIBA_MODULE) { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), }, { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), }, -- cgit v1.1 From 1529c69adce1e95f7ae72f0441590c226bbac7fc Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 22 Jun 2010 12:27:26 +0200 Subject: ata_generic: implement ATA_GEN_* flags and force enable DMA on MBP 7,1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit IDE mode of MCP89 on MBP 7,1 doesn't set DMA enable bits in the BMDMA status register. Make the following changes to work around the problem. * Instead of using hard coded 1 in id->driver_data as class code match, use ATA_GEN_CLASS_MATCH and carry the matched id in host->private_data. * Instead of matching PCI_VENDOR_ID_CENATEK, use ATA_GEN_FORCE_DMA flag in id instead. * Add ATA_GEN_FORCE_DMA to the id entry of MBP 7,1. Signed-off-by: Tejun Heo Cc: Peer Chen Cc: stable@kernel.org Reported-by: Anders Østhus Reported-by: Andreas Graf Reported-by: Benoit Gschwind Reported-by: Damien Cassou Reported-by: tixetsal@juno.com Signed-off-by: Jeff Garzik --- drivers/ata/ata_generic.c | 26 +++++++++++++++++++------- 1 file changed, 19 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c index d4ccf74..7107a69 100644 --- a/drivers/ata/ata_generic.c +++ b/drivers/ata/ata_generic.c @@ -32,6 +32,11 @@ * A generic parallel ATA driver using libata */ +enum { + ATA_GEN_CLASS_MATCH = (1 << 0), + ATA_GEN_FORCE_DMA = (1 << 1), +}; + /** * generic_set_mode - mode setting * @link: link to set up @@ -46,13 +51,17 @@ static int generic_set_mode(struct ata_link *link, struct ata_device **unused) { struct ata_port *ap = link->ap; + const struct pci_device_id *id = ap->host->private_data; int dma_enabled = 0; struct ata_device *dev; struct pci_dev *pdev = to_pci_dev(ap->host->dev); - /* Bits 5 and 6 indicate if DMA is active on master/slave */ - if (ap->ioaddr.bmdma_addr) + if (id->driver_data & ATA_GEN_FORCE_DMA) { + dma_enabled = 0xff; + } else if (ap->ioaddr.bmdma_addr) { + /* Bits 5 and 6 indicate if DMA is active on master/slave */ dma_enabled = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS); + } if (pdev->vendor == PCI_VENDOR_ID_CENATEK) dma_enabled = 0xFF; @@ -126,7 +135,7 @@ static int ata_generic_init_one(struct pci_dev *dev, const struct pci_device_id const struct ata_port_info *ppi[] = { &info, NULL }; /* Don't use the generic entry unless instructed to do so */ - if (id->driver_data == 1 && all_generic_ide == 0) + if ((id->driver_data & ATA_GEN_CLASS_MATCH) && all_generic_ide == 0) return -ENODEV; /* Devices that need care */ @@ -155,7 +164,7 @@ static int ata_generic_init_one(struct pci_dev *dev, const struct pci_device_id return rc; pcim_pin_device(dev); } - return ata_pci_bmdma_init_one(dev, ppi, &generic_sht, NULL, 0); + return ata_pci_bmdma_init_one(dev, ppi, &generic_sht, (void *)id, 0); } static struct pci_device_id ata_generic[] = { @@ -167,13 +176,15 @@ static struct pci_device_id ata_generic[] = { { PCI_DEVICE(PCI_VENDOR_ID_HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), }, { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C561), }, { PCI_DEVICE(PCI_VENDOR_ID_OPTI, PCI_DEVICE_ID_OPTI_82C558), }, - { PCI_DEVICE(PCI_VENDOR_ID_CENATEK,PCI_DEVICE_ID_CENATEK_IDE), }, + { PCI_DEVICE(PCI_VENDOR_ID_CENATEK,PCI_DEVICE_ID_CENATEK_IDE), + .driver_data = ATA_GEN_FORCE_DMA }, /* * For some reason, MCP89 on MacBook 7,1 doesn't work with * ahci, use ata_generic instead. */ { PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA, - PCI_VENDOR_ID_APPLE, 0xcb89, }, + PCI_VENDOR_ID_APPLE, 0xcb89, + .driver_data = ATA_GEN_FORCE_DMA }, #if !defined(CONFIG_PATA_TOSHIBA) && !defined(CONFIG_PATA_TOSHIBA_MODULE) { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), }, { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), }, @@ -181,7 +192,8 @@ static struct pci_device_id ata_generic[] = { { PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_5), }, #endif /* Must come last. If you add entries adjust this table appropriately */ - { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 1}, + { PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL), + .driver_data = ATA_GEN_CLASS_MATCH }, { 0, }, }; -- cgit v1.1 From 43ed340ad93dcefe00a8f116b7e1b9dab2958543 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 1 Jul 2010 17:53:00 +0100 Subject: drm/i915: Account for space on the ring buffer consumed whilst wrapping. If we fill the tail of the physical ring buffer with NOOP when wrapping, we need to account for the reduction in available space. Signed-off-by: Chris Wilson Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_ringbuffer.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index a3cac57..26362f8 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -687,6 +687,7 @@ int intel_wrap_ring_buffer(struct drm_device *dev, *virt++ = MI_NOOP; ring->tail = 0; + ring->space = ring->head - 8; return 0; } -- cgit v1.1 From adcdbc6651a7086b99827cf50623a02d941261f1 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Wed, 30 Jun 2010 13:49:37 -0700 Subject: drm/i915: don't access FW_BLC_SELF on 965G The register offset for FW_BLC_SELF is a totally different set of bits on Broadwater (it's actually MI_RDRET_STATE), so don't treat it like FW_BLC_SELF on 965G chips. Fixes bug https://bugs.freedesktop.org/show_bug.cgi?id=26874. Cc: stable@kernel.org Tested-by: Norman Yarvin Signed-off-by: Jesse Barnes Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_debugfs.c | 2 +- drivers/gpu/drm/i915/intel_display.c | 8 +++++--- 2 files changed, 6 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 52510ad..aee83fa 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -620,7 +620,7 @@ static int i915_sr_status(struct seq_file *m, void *unused) drm_i915_private_t *dev_priv = dev->dev_private; bool sr_enabled = false; - if (IS_I965G(dev) || IS_I945G(dev) || IS_I945GM(dev)) + if (IS_I965GM(dev) || IS_I945G(dev) || IS_I945GM(dev)) sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN; else if (IS_I915GM(dev)) sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 6db778a..3acb766 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2970,11 +2970,13 @@ static void i965_update_wm(struct drm_device *dev, int planea_clock, if (srwm < 0) srwm = 1; srwm &= 0x3f; - I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN); + if (IS_I965GM(dev)) + I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN); } else { /* Turn off self refresh if both pipes are enabled */ - I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF) - & ~FW_BLC_SELF_EN); + if (IS_I965GM(dev)) + I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF) + & ~FW_BLC_SELF_EN); } DRM_DEBUG_KMS("Setting FIFO watermarks - A: 8, B: 8, C: 8, SR %d\n", -- cgit v1.1 From fe27d53e5c597ee5ba5d72a29d517091f244e974 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 30 Jun 2010 11:46:17 +1000 Subject: i915: fix ironlake edp panel setup (v4) The eDP spec claims a 20% overhead for the 8:10 encoding scheme used on the wire. Take this into account when picking the lane/clock speed for the panel. v3: some panels are out of spec, try our best to deal with them, don't refuse modes on eDP panels, and try the largest allowed settings if all else fails on eDP. v4: fix stupid typo, forgot to git add before amending. Fixes several reports in bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=28070 Signed-off-by: Dave Airlie Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_dp.c | 27 ++++++++++++++++++++++++--- 1 file changed, 24 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 49b54f0..1aac59e 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -136,6 +136,12 @@ intel_dp_link_required(struct drm_device *dev, } static int +intel_dp_max_data_rate(int max_link_clock, int max_lanes) +{ + return (max_link_clock * max_lanes * 8) / 10; +} + +static int intel_dp_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { @@ -144,8 +150,11 @@ intel_dp_mode_valid(struct drm_connector *connector, int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_encoder)); int max_lanes = intel_dp_max_lane_count(intel_encoder); - if (intel_dp_link_required(connector->dev, intel_encoder, mode->clock) - > max_link_clock * max_lanes) + /* only refuse the mode on non eDP since we have seen some wierd eDP panels + which are outside spec tolerances but somehow work by magic */ + if (!IS_eDP(intel_encoder) && + (intel_dp_link_required(connector->dev, intel_encoder, mode->clock) + > intel_dp_max_data_rate(max_link_clock, max_lanes))) return MODE_CLOCK_HIGH; if (mode->clock < 10000) @@ -506,7 +515,7 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) { for (clock = 0; clock <= max_clock; clock++) { - int link_avail = intel_dp_link_clock(bws[clock]) * lane_count; + int link_avail = intel_dp_max_data_rate(intel_dp_link_clock(bws[clock]), lane_count); if (intel_dp_link_required(encoder->dev, intel_encoder, mode->clock) <= link_avail) { @@ -521,6 +530,18 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode, } } } + + if (IS_eDP(intel_encoder)) { + /* okay we failed just pick the highest */ + dp_priv->lane_count = max_lane_count; + dp_priv->link_bw = bws[max_clock]; + adjusted_mode->clock = intel_dp_link_clock(dp_priv->link_bw); + DRM_DEBUG_KMS("Force picking display port link bw %02x lane " + "count %d clock %d\n", + dp_priv->link_bw, dp_priv->lane_count, + adjusted_mode->clock); + return true; + } return false; } -- cgit v1.1 From 2d1c9752eaa4c0b38f6fb1ab79a6addc146cd64e Mon Sep 17 00:00:00 2001 From: Andy Lutomirski Date: Sat, 12 Jun 2010 05:21:18 -0400 Subject: drm/i915: Fix CRT hotplug regression in 2.6.35-rc1 Commit 7a772c492fcfffae812ffca78a628e76fa57fe58 has two bugs which made the hotplug problems on my laptop worse instead of better. First, it did not, in fact, disable the CRT plug interrupt -- it disabled all the other hotplug interrupts. It seems rather doubtful that that bit of the patch fixed anything, so let's just remove it. (If you want to add it back, you probably meant ~CRT_HOTPLUG_INT_EN.) Second, on at least my GM45, setting CRT_HOTPLUG_ACTIVATION_PERIOD_64 and CRT_HOTPLUG_VOLTAGE_COMPARE_50 (when they were previously unset) causes a hotplug interrupt about three seconds later. The old code never restored PORT_HOTPLUG_EN so this could only happen once, but they new code restores those registers. So just set those bits when we set up the interrupt in the first place. Signed-off-by: Andy Lutomirski Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_irq.c | 12 +++++++++++- drivers/gpu/drm/i915/i915_reg.h | 1 - drivers/gpu/drm/i915/intel_crt.c | 6 ------ 3 files changed, 11 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 70e1e4b..d676e55 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1434,8 +1434,18 @@ int i915_driver_irq_postinstall(struct drm_device *dev) hotplug_en |= SDVOC_HOTPLUG_INT_EN; if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS) hotplug_en |= SDVOB_HOTPLUG_INT_EN; - if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS) + if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS) { hotplug_en |= CRT_HOTPLUG_INT_EN; + + /* Programming the CRT detection parameters tends + to generate a spurious hotplug event about three + seconds later. So just do it once. + */ + if (IS_G4X(dev)) + hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64; + hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50; + } + /* Ignore TV since it's buggy */ I915_WRITE(PORT_HOTPLUG_EN, hotplug_en); diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 2cae38a..150400f 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1134,7 +1134,6 @@ #define CRT_HOTPLUG_DETECT_DELAY_2G (1 << 4) #define CRT_HOTPLUG_DETECT_VOLTAGE_325MV (0 << 2) #define CRT_HOTPLUG_DETECT_VOLTAGE_475MV (1 << 2) -#define CRT_HOTPLUG_MASK (0x3fc) /* Bits 9-2 */ #define PORT_HOTPLUG_STAT 0x61114 #define HDMIB_HOTPLUG_INT_STATUS (1 << 29) diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c index 22ff384..ee0732b 100644 --- a/drivers/gpu/drm/i915/intel_crt.c +++ b/drivers/gpu/drm/i915/intel_crt.c @@ -234,14 +234,8 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector) else tries = 1; hotplug_en = orig = I915_READ(PORT_HOTPLUG_EN); - hotplug_en &= CRT_HOTPLUG_MASK; hotplug_en |= CRT_HOTPLUG_FORCE_DETECT; - if (IS_G4X(dev)) - hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64; - - hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50; - for (i = 0; i < tries ; i++) { unsigned long timeout; /* turn on the FORCE_DETECT */ -- cgit v1.1 From ee0c6bfbd602cdad2ab1780061b3b1a9108cbd6c Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 23 Jun 2010 13:19:55 +0200 Subject: drm/i915: take struct_mutex in i915_dma_cleanup() intel_cleanup_ring_buffer() calls drm_gem_object_unreference() (as opposed to drm_gem_object_unreference_unlocked()) so it needs to be called with "struct_mutex" held. If we don't hold the lock, it triggers a BUG_ON(!mutex_is_locked(&dev->struct_mutex)); I also audited the other places that call intel_cleanup_ring_buffer() and they all hold the lock so they're OK. This was introduced in: 8187a2b70e3 "drm/i915: introduce intel_ring_buffer structure (V2)" and it's a regression from v2.6.34. Addresses: https://bugzilla.kernel.org/show_bug.cgi?id=16247 Signed-off-by: Dan Carpenter Reported-by: Benny Halevy Tested-by: Benny Halevy Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_dma.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 4d59710..19677ec 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -128,9 +128,11 @@ static int i915_dma_cleanup(struct drm_device * dev) if (dev->irq_enabled) drm_irq_uninstall(dev); + mutex_lock(&dev->struct_mutex); intel_cleanup_ring_buffer(dev, &dev_priv->render_ring); if (HAS_BSD(dev)) intel_cleanup_ring_buffer(dev, &dev_priv->bsd_ring); + mutex_unlock(&dev->struct_mutex); /* Clear the HWS virtual address at teardown */ if (I915_NEED_GFX_HWS(dev)) -- cgit v1.1 From 132b6aab90d2673af67c414878da241a197e00fb Mon Sep 17 00:00:00 2001 From: Prarit Bhargava Date: Thu, 27 May 2010 13:37:56 -0400 Subject: drm/i915: fix uninitialized variable warning in i915_setup_compression() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fixes: drivers/gpu/drm/i915/i915_dma.c: In function ‘i915_setup_compression’: drivers/gpu/drm/i915/i915_dma.c:1311: error: ‘compressed_llb’ may be used uninitialized in this function Signed-off-by: Prarit Bhargava Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/i915_dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 19677ec..e50ae3c 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1231,7 +1231,7 @@ static void i915_warn_stolen(struct drm_device *dev) static void i915_setup_compression(struct drm_device *dev, int size) { struct drm_i915_private *dev_priv = dev->dev_private; - struct drm_mm_node *compressed_fb, *compressed_llb; + struct drm_mm_node *compressed_fb, *uninitialized_var(compressed_llb); unsigned long cfb_base; unsigned long ll_base = 0; -- cgit v1.1 From dd1ea37d9257bdf118693235dc74003901c55204 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Thu, 24 Jun 2010 11:05:10 -0700 Subject: drm/i915: change default panel fitting mode to preserve aspect ratio We did this a long time ago in the DDX driver, but now this fix belongs in the kernel. Preserving the aspect ratio is a nicer default. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=18033. Tested-by: Josh Triplett Signed-off-by: Jesse Barnes Signed-off-by: Eric Anholt --- drivers/gpu/drm/i915/intel_lvds.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 6a1accd..31df55f 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -983,8 +983,8 @@ void intel_lvds_init(struct drm_device *dev) drm_connector_attach_property(&intel_connector->base, dev->mode_config.scaling_mode_property, - DRM_MODE_SCALE_FULLSCREEN); - lvds_priv->fitting_mode = DRM_MODE_SCALE_FULLSCREEN; + DRM_MODE_SCALE_ASPECT); + lvds_priv->fitting_mode = DRM_MODE_SCALE_ASPECT; /* * LVDS discovery: * 1) check for EDID on DDC -- cgit v1.1 From 985b823b919273fe1327d56d2196b4f92e5d0fae Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Fri, 2 Jul 2010 10:04:42 +1000 Subject: drm/i915: fix hibernation since i915 self-reclaim fixes Since commit 4bdadb9785696439c6e2b3efe34aa76df1149c83 ("drm/i915: Selectively enable self-reclaim"), we've been passing GFP_MOVABLE to the i915 page allocator where we weren't before due to some over-eager removal of the page mapping gfp_flags games the code used to play. This caused hibernate on Intel hardware to result in a lot of memory corruptions on resume. See for example http://bugzilla.kernel.org/show_bug.cgi?id=13811 Reported-by: Evengi Golov (in bugzilla) Signed-off-by: Dave Airlie Tested-by: M. Vefa Bicakci Cc: stable@kernel.org Cc: Chris Wilson Cc: KOSAKI Motohiro Cc: Hugh Dickins Signed-off-by: Linus Torvalds --- drivers/gpu/drm/i915/i915_gem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 9ded3da..0743858 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2239,7 +2239,7 @@ i915_gem_object_get_pages(struct drm_gem_object *obj, mapping = inode->i_mapping; for (i = 0; i < page_count; i++) { page = read_cache_page_gfp(mapping, i, - mapping_gfp_mask (mapping) | + GFP_HIGHUSER | __GFP_COLD | gfpmask); if (IS_ERR(page)) -- cgit v1.1 From 980533b018fda7ae4c4fb6863b75a0e282d2ffd2 Mon Sep 17 00:00:00 2001 From: Daniel J Blueman Date: Thu, 1 Jul 2010 23:27:11 +0100 Subject: correct console log level when ERST ACPI table is not found When booting 2.6.35-rc3 on a x86 system without an ERST ACPI table with the 'quiet' option, we still observe an "ERST: Table is not found!" warning. Quiesce it to the same info log level as the other 'table not found' warnings. Signed-off-by: Daniel J Blueman Signed-off-by: Linus Torvalds --- drivers/acpi/apei/erst.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c index 2ebc391..864dd46 100644 --- a/drivers/acpi/apei/erst.c +++ b/drivers/acpi/apei/erst.c @@ -781,7 +781,7 @@ static int __init erst_init(void) status = acpi_get_table(ACPI_SIG_ERST, 0, (struct acpi_table_header **)&erst_tab); if (status == AE_NOT_FOUND) { - pr_err(ERST_PFX "Table is not found!\n"); + pr_info(ERST_PFX "Table is not found!\n"); goto err; } else if (ACPI_FAILURE(status)) { const char *msg = acpi_format_exception(status); -- cgit v1.1 From 70565d00db6ef5735819db973fa8da95bd34a6ab Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Thu, 1 Jul 2010 04:45:43 -0700 Subject: drm/i915: fix page flip finish vs. prepare on plane B The refreshed patch had a copy & paste bug. Reported-by: Simon Farnsworth Signed-off-by: Jesse Barnes Signed-off-by: Linus Torvalds --- drivers/gpu/drm/i915/i915_irq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index d676e55..dba53d4 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -947,9 +947,9 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS) } if (iir & I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT) { + intel_prepare_page_flip(dev, 1); if (dev_priv->flip_pending_is_done) intel_finish_page_flip_plane(dev, 1); - intel_prepare_page_flip(dev, 1); } if (pipea_stats & vblank_status) { -- cgit v1.1