diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-12 15:50:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-12 15:50:23 -0700 |
| commit | 6a84258e5f5bb8b9bd72e06a5837fa6fdacaf5c5 (patch) | |
| tree | 3c4911a489c85e908b0ef3ed83d78264788f858c | |
| parent | efefc6eb38d43b8e5daef482f575d767b002004e (diff) | |
| parent | f3e6f164c2389853432454c89b316a8ab7485e2f (diff) | |
| download | op-kernel-dev-6a84258e5f5bb8b9bd72e06a5837fa6fdacaf5c5.zip op-kernel-dev-6a84258e5f5bb8b9bd72e06a5837fa6fdacaf5c5.tar.gz | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (37 commits)
PCI: merge almost all of pci_32.h and pci_64.h together
PCI: X86: Introduce and enable PCI domain support
PCI: Add 'nodomains' boot option, and pci_domains_supported global
PCI: modify PCI bridge control ISA flag for clarity
PCI: use _CRS for PCI resource allocation
PCI: avoid P2P prefetch window for expansion ROMs
PCI: skip ISA ioresource alignment on some systems
PCI: remove transparent bridge sizing
pci: write file size to inode on proc bus file write
pci: use size stored in proc_dir_entry for proc bus files
pci: implement "pci=noaer"
PCI: fix IDE legacy mode resources
MSI: Use correct data offset for 32-bit MSI in read_msi_msg()
PCI: Fix incorrect argument order to list_add_tail() in PCI dynamic ID code
PCI: i386: Compaq EVO N800c needs PCI bus renumbering
PCI: Remove no longer correct documentation regarding MSI vector assignment
PCI: re-enable onboard sound on "MSI K8T Neo2-FIR"
PCI: quirk_vt82c586_acpi: Omit reading PCI revision ID
PCI: quirk amd_8131_mmrbc: Omit reading pci revision ID
cpqphp: Use PCI_CLASS_REVISION instead of PCI_REVISION_ID for read
...
38 files changed, 654 insertions, 544 deletions
diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt index cc7a8c3..b939ebb 100644 --- a/Documentation/DMA-API.txt +++ b/Documentation/DMA-API.txt @@ -68,6 +68,9 @@ size and dma_handle must all be the same as those passed into the consistent allocate. cpu_addr must be the virtual address returned by the consistent allocate. +Note that unlike their sibling allocation calls, these routines +may only be called with IRQs enabled. + Part Ib - Using small dma-coherent buffers ------------------------------------------ diff --git a/Documentation/MSI-HOWTO.txt b/Documentation/MSI-HOWTO.txt index 0d82407..a51f693 100644 --- a/Documentation/MSI-HOWTO.txt +++ b/Documentation/MSI-HOWTO.txt @@ -241,68 +241,7 @@ address space of the MSI-X table/MSI-X PBA. Otherwise, the PCI subsystem will fail enabling MSI-X on its hardware device when it calls the function pci_enable_msix(). -5.3.2 Handling MSI-X allocation - -Determining the number of MSI-X vectors allocated to a function is -dependent on the number of MSI capable devices and MSI-X capable -devices populated in the system. The policy of allocating MSI-X -vectors to a function is defined as the following: - -#of MSI-X vectors allocated to a function = (x - y)/z where - -x = The number of available PCI vector resources by the time - the device driver calls pci_enable_msix(). The PCI vector - resources is the sum of the number of unassigned vectors - (new) and the number of released vectors when any MSI/MSI-X - device driver switches its hardware device back to a legacy - mode or is hot-removed. The number of unassigned vectors - may exclude some vectors reserved, as defined in parameter - NR_HP_RESERVED_VECTORS, for the case where the system is - capable of supporting hot-add/hot-remove operations. Users - may change the value defined in NR_HR_RESERVED_VECTORS to - meet their specific needs. - -y = The number of MSI capable devices populated in the system. - This policy ensures that each MSI capable device has its - vector reserved to avoid the case where some MSI-X capable - drivers may attempt to claim all available vector resources. - -z = The number of MSI-X capable devices populated in the system. - This policy ensures that maximum (x - y) is distributed - evenly among MSI-X capable devices. - -Note that the PCI subsystem scans y and z during a bus enumeration. -When the PCI subsystem completes configuring MSI/MSI-X capability -structure of a device as requested by its device driver, y/z is -decremented accordingly. - -5.3.3 Handling MSI-X shortages - -For the case where fewer MSI-X vectors are allocated to a function -than requested, the function pci_enable_msix() will return the -maximum number of MSI-X vectors available to the caller. A device -driver may re-send its request with fewer or equal vectors indicated -in the return. For example, if a device driver requests 5 vectors, but -the number of available vectors is 3 vectors, a value of 3 will be -returned as a result of pci_enable_msix() call. A function could be -designed for its driver to use only 3 MSI-X table entries as -different combinations as ABC--, A-B-C, A--CB, etc. Note that this -patch does not support multiple entries with the same vector. Such -attempt by a device driver to use 5 MSI-X table entries with 3 vectors -as ABBCC, AABCC, BCCBA, etc will result as a failure by the function -pci_enable_msix(). Below are the reasons why supporting multiple -entries with the same vector is an undesirable solution. - - - The PCI subsystem cannot determine the entry that - generated the message to mask/unmask MSI while handling - software driver ISR. Attempting to walk through all MSI-X - table entries (2048 max) to mask/unmask any match vector - is an undesirable solution. - - - Walking through all MSI-X table entries (2048 max) to handle - SMP affinity of any match vector is an undesirable solution. - -5.3.4 API pci_enable_msix +5.3.2 API pci_enable_msix int pci_enable_msix(struct pci_dev *dev, struct msix_entry *entries, int nvec) @@ -339,7 +278,7 @@ a failure. This failure may be a result of duplicate entries specified in second argument, or a result of no available vector, or a result of failing to initialize MSI-X table entries. -5.3.5 API pci_disable_msix +5.3.3 API pci_disable_msix void pci_disable_msix(struct pci_dev *dev) @@ -349,7 +288,7 @@ always call free_irq() on all MSI-X vectors it has done request_irq() on before calling this API. Failure to do so results in a BUG_ON() and a device will be left with MSI-X enabled and leaks its vectors. -5.3.6 MSI-X mode vs. legacy mode diagram +5.3.4 MSI-X mode vs. legacy mode diagram The below diagram shows the events which switch the interrupt mode on the MSI-X capable device function between MSI-X mode and @@ -407,7 +346,7 @@ between MSI mod MSI-X mode during a run-time. MSI/MSI-X support requires support from both system hardware and individual hardware device functions. -5.5.1 System hardware support +5.5.1 Required x86 hardware support Since the target of MSI address is the local APIC CPU, enabling MSI/MSI-X support in the Linux kernel is dependent on whether existing diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 912c57c..9cbc82e 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -68,6 +68,7 @@ parameter is applicable: PARIDE The ParIDE (parallel port IDE) subsystem is enabled. PARISC The PA-RISC architecture is enabled. PCI PCI bus support is enabled. + PCIE PCI Express support is enabled. PCMCIA The PCMCIA subsystem is enabled. PNP Plug & Play support is enabled. PPC PowerPC architecture is enabled. @@ -1277,6 +1278,11 @@ and is between 256 and 4096 characters. It is defined in the file Mechanism 1. conf2 [X86-32] Force use of PCI Configuration Mechanism 2. + noaer [PCIE] If the PCIEAER kernel config parameter is + enabled, this kernel boot option can be used to + disable the use of PCIE advanced error reporting. + nodomains [PCI] Disable support for multiple PCI + root domains (aka PCI segments, in ACPI-speak). nommconf [X86-32,X86_64] Disable use of MMCONFIG for PCI Configuration nomsi [MSI] If the PCI_MSI kernel config parameter is @@ -1321,6 +1327,8 @@ and is between 256 and 4096 characters. It is defined in the file IRQ routing is enabled. noacpi [X86-32] Do not use ACPI for IRQ routing or for PCI scanning. + use_crs [X86-32] Use _CRS for PCI resource + allocation. routeirq Do IRQ routing for all PCI devices. This is normally done in pci_enable_device(), so this option is a temporary workaround diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index 6bbbc27..f1486f8 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -1137,6 +1137,11 @@ config PCI_MMCONFIG depends on PCI && ACPI && (PCI_GOMMCONFIG || PCI_GOANY) default y +config PCI_DOMAINS + bool + depends on PCI + default y + source "drivers/pci/pcie/Kconfig" source "drivers/pci/Kconfig" diff --git a/arch/x86/kernel/pci-dma_32.c b/arch/x86/kernel/pci-dma_32.c index 048f09b..0aae2f3 100644 --- a/arch/x86/kernel/pci-dma_32.c +++ b/arch/x86/kernel/pci-dma_32.c @@ -63,7 +63,8 @@ void dma_free_coherent(struct device *dev, size_t size, { struct dma_coherent_mem *mem = dev ? dev->dma_mem : NULL; int order = get_order(size); - + + WARN_ON(irqs_disabled()); /* for portability */ if (mem && vaddr >= mem->virt_base && vaddr < (mem->virt_base + (mem->size << PAGE_SHIFT))) { int page = (vaddr - mem->virt_base) >> PAGE_SHIFT; diff --git a/arch/x86/kernel/pci-dma_64.c b/arch/x86/kernel/pci-dma_64.c index 2971144..9576a2e 100644 --- a/arch/x86/kernel/pci-dma_64.c +++ b/arch/x86/kernel/pci-dma_64.c @@ -167,6 +167,7 @@ EXPORT_SYMBOL(dma_alloc_coherent); void dma_free_coherent(struct device *dev, size_t size, void *vaddr, dma_addr_t bus) { + WARN_ON(irqs_disabled()); /* for portability */ if (dma_ops->unmap_single) dma_ops->unmap_single(dev, bus, size, 0); free_pages((unsigned long)vaddr, get_order(size)); diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c index 03e1cce..139eb03 100644 --- a/arch/x86/kernel/reboot_fixups_32.c +++ b/arch/x86/kernel/reboot_fixups_32.c @@ -11,6 +11,7 @@ #include <asm/delay.h> #include <linux/pci.h> +#include <linux/interrupt.h> #include <asm/reboot_fixups.h> #include <asm/msr.h> @@ -56,6 +57,11 @@ void mach_reboot_fixups(void) struct pci_dev *dev; int i; + /* we can be called from sysrq-B code. In such a case it is + * prohibited to dig PCI */ + if (in_interrupt()) + return; + for (i=0; i < ARRAY_SIZE(fixups_table); i++) { cur = &(fixups_table[i]); dev = pci_get_device(cur->vendor, cur->device, NULL); diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index bc8a44b..27a391d 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -2,15 +2,199 @@ #include <linux/acpi.h> #include <linux/init.h> #include <linux/irq.h> +#include <linux/dmi.h> #include <asm/numa.h> #include "pci.h" +static int __devinit can_skip_ioresource_align(struct dmi_system_id *d) +{ + pci_probe |= PCI_CAN_SKIP_ISA_ALIGN; + printk(KERN_INFO "PCI: %s detected, can skip ISA alignment\n", d->ident); + return 0; +} + +static struct dmi_system_id acpi_pciprobe_dmi_table[] = { +/* + * Systems where PCI IO resource ISA alignment can be skipped + * when the ISA enable bit in the bridge control is not set + */ + { + .callback = can_skip_ioresource_align, + .ident = "IBM System x3800", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "IBM"), + DMI_MATCH(DMI_PRODUCT_NAME, "x3800"), + }, + }, + { + .callback = can_skip_ioresource_align, + .ident = "IBM System x3850", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "IBM"), + DMI_MATCH(DMI_PRODUCT_NAME, "x3850"), + }, + }, + { + .callback = can_skip_ioresource_align, + .ident = "IBM System x3950", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "IBM"), + DMI_MATCH(DMI_PRODUCT_NAME, "x3950"), + }, + }, + {} +}; + +struct pci_root_info { + char *name; + unsigned int res_num; + struct resource *res; + struct pci_bus *bus; + int busnum; +}; + +static acpi_status +resource_to_addr(struct acpi_resource *resource, + struct acpi_resource_address64 *addr) +{ + acpi_status status; + + status = acpi_resource_to_address64(resource, addr); + if (ACPI_SUCCESS(status) && + (addr->resource_type == ACPI_MEMORY_RANGE || + addr->resource_type == ACPI_IO_RANGE) && + addr->address_length > 0 && + addr->producer_consumer == ACPI_PRODUCER) { + return AE_OK; + } + return AE_ERROR; +} + +static acpi_status +count_resource(struct acpi_resource *acpi_res, void *data) +{ + struct pci_root_info *info = data; + struct acpi_resource_address64 addr; + acpi_status status; + + status = resource_to_addr(acpi_res, &addr); + if (ACPI_SUCCESS(status)) + info->res_num++; + return AE_OK; +} + +static acpi_status +setup_resource(struct acpi_resource *acpi_res, void *data) +{ + struct pci_root_info *info = data; + struct resource *res; + struct acpi_resource_address64 addr; + acpi_status status; + unsigned long flags; + struct resource *root; + + status = resource_to_addr(acpi_res, &addr); + if (!ACPI_SUCCESS(status)) + return AE_OK; + + if (addr.resource_type == ACPI_MEMORY_RANGE) { + root = &iomem_resource; + flags = IORESOURCE_MEM; + if (addr.info.mem.caching == ACPI_PREFETCHABLE_MEMORY) + flags |= IORESOURCE_PREFETCH; + } else if (addr.resource_type == ACPI_IO_RANGE) { + root = &ioport_resource; + flags = IORESOURCE_IO; + } else + return AE_OK; + + res = &info->res[info->res_num]; + res->name = info->name; + res->flags = flags; + res->start = addr.minimum + addr.translation_offset; + res->end = res->start + addr.address_length - 1; + res->child = NULL; + + if (insert_resource(root, res)) { + printk(KERN_ERR "PCI: Failed to allocate 0x%lx-0x%lx " + "from %s for %s\n", (unsigned long) res->start, + (unsigned long) res->end, root->name, info->name); + } else { + info->bus->resource[info->res_num] = res; + info->res_num++; + } + return AE_OK; +} + +static void +adjust_transparent_bridge_resources(struct pci_bus *bus) +{ + struct pci_dev *dev; + + list_for_each_entry(dev, &bus->devices, bus_list) { + int i; + u16 class = dev->class >> 8; + + if (class == PCI_CLASS_BRIDGE_PCI && dev->transparent) { + for(i = 3; i < PCI_BUS_NUM_RESOURCES; i++) + dev->subordinate->resource[i] = + dev->bus->resource[i - 3]; + } + } +} + +static void +get_current_resources(struct acpi_device *device, int busnum, + struct pci_bus *bus) +{ + struct pci_root_info info; + size_t size; + + info.bus = bus; + info.res_num = 0; + acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_resource, + &info); + if (!info.res_num) + return; + + size = sizeof(*info.res) * info.res_num; + info.res = kmalloc(size, GFP_KERNEL); + if (!info.res) + goto res_alloc_fail; + + info.name = kmalloc(12, GFP_KERNEL); + if (!info.name) + goto name_alloc_fail; + sprintf(info.name, "PCI Bus #%02x", busnum); + + info.res_num = 0; + acpi_walk_resources(device->handle, METHOD_NAME__CRS, setup_resource, + &info); + if (info.res_num) + adjust_transparent_bridge_resources(bus); + + return; + +name_alloc_fail: + kfree(info.res); +res_alloc_fail: + return; +} + struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int domain, int busnum) { struct pci_bus *bus; struct pci_sysdata *sd; int pxm; + dmi_check_system(acpi_pciprobe_dmi_table); + + if (domain && !pci_domains_supported) { + printk(KERN_WARNING "PCI: Multiple domains not supported " + "(dom %d, bus %d)\n", domain, busnum); + return NULL; + } + /* Allocate per-root-bus (not per bus) arch-specific data. * TODO: leak; this memory is never freed. * It's arguable whether it's worth the trouble to care. @@ -21,12 +205,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do return NULL; } - if (domain != 0) { - printk(KERN_WARNING "PCI: Multiple domains not supported\n"); - kfree(sd); - return NULL; - } - + sd->domain = domain; sd->node = -1; pxm = acpi_get_pxm(device->handle); @@ -47,6 +226,9 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do } } #endif + + if (bus && (pci_probe & PCI_USE__CRS)) + get_current_resources(device, busnum, bus); return bus; } diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 07d5223..2d71bbc 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -29,12 +29,14 @@ struct pci_raw_ops *raw_pci_ops; static int pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value) { - return raw_pci_ops->read(0, bus->number, devfn, where, size, value); + return raw_pci_ops->read(pci_domain_nr(bus), bus->number, + devfn, where, size, value); } static int pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value) { - return raw_pci_ops->write(0, bus->number, devfn, where, size, value); + return raw_pci_ops->write(pci_domain_nr(bus), bus->number, + devfn, where, size, value); } struct pci_ops pci_root_ops = { @@ -287,6 +289,16 @@ static struct dmi_system_id __devinitdata pciprobe_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL685c G1"), }, }, +#ifdef __i386__ + { + .callback = assign_all_busses, + .ident = "Compaq EVO N800c", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Compaq"), + DMI_MATCH(DMI_PRODUCT_NAME, "EVO N800c"), + }, + }, +#endif {} }; @@ -426,6 +438,9 @@ char * __devinit pcibios_setup(char *str) } else if (!strcmp(str, "assign-busses")) { pci_probe |= PCI_ASSIGN_ALL_BUSSES; return NULL; + } else if (!strcmp(str, "use_crs")) { + pci_probe |= PCI_USE__CRS; + return NULL; } else if (!strcmp(str, "routeirq")) { pci_routeirq = 1; return NULL; diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c index c82cbf4..6cff66d 100644 --- a/arch/x86/pci/fixup.c +++ b/arch/x86/pci/fixup.c @@ -353,6 +353,53 @@ static void __devinit pci_fixup_video(struct pci_dev *pdev) } DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_video); + +static struct dmi_system_id __devinitdata msi_k8t_dmi_table[] = { + { + .ident = "MSI-K8T-Neo2Fir", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "MSI"), + DMI_MATCH(DMI_PRODUCT_NAME, "MS-6702E"), + }, + }, + {} +}; + +/* + * The AMD-Athlon64 board MSI "K8T Neo2-FIR" disables the onboard sound + * card if a PCI-soundcard is added. + * + * The BIOS only gives options "DISABLED" and "AUTO". This code sets + * the corresponding register-value to enable the soundcard. + * + * The soundcard is only enabled, if the mainborad is identified + * via DMI-tables and the soundcard is detected to be off. + */ +static void __devinit pci_fixup_msi_k8t_onboard_sound(struct pci_dev *dev) +{ + unsigned char val; + if (!dmi_check_system(msi_k8t_dmi_table)) + return; /* only applies to MSI K8T Neo2-FIR */ + + pci_read_config_byte(dev, 0x50, &val); + if (val & 0x40) { + pci_write_config_byte(dev, 0x50, val & (~0x40)); + + /* verify the change for status output */ + pci_read_config_byte(dev, 0x50, &val); + if (val & 0x40) + printk(KERN_INFO "PCI: Detected MSI K8T Neo2-FIR, " + "can't enable onboard soundcard!\n"); + else + printk(KERN_INFO "PCI: Detected MSI K8T Neo2-FIR, " + "enabled onboard soundcard.\n"); + } +} +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, + pci_fixup_msi_k8t_onboard_sound); +DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, + pci_fixup_msi_k8t_onboard_sound); + /* * Some Toshiba laptops need extra code to enable their TI TSB43AB22/A. * diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index bcd2f94..42ba0e2 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -33,6 +33,15 @@ #include "pci.h" +static int +skip_isa_ioresource_align(struct pci_dev *dev) { + + if ((pci_probe & PCI_CAN_SKIP_ISA_ALIGN) && + !(dev->bus->bridge_ctl & PCI_BRIDGE_CTL_ISA)) + return 1; + return 0; +} + /* * We need to avoid collisions with `mirrored' VGA ports * and other strange ISA hardware, so we always want the @@ -50,9 +59,13 @@ void pcibios_align_resource(void *data, struct resource *res, resource_size_t size, resource_size_t align) { + struct pci_dev *dev = data; + if (res->flags & IORESOURCE_IO) { resource_size_t start = res->start; + if (skip_isa_ioresource_align(dev)) + return; if (start & 0x300) { start = (start + 0x3ff) & ~0x3ff; res->start = start; diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c index d98c6b0..c52150f 100644 --- a/arch/x86/pci/irq.c +++ b/arch/x86/pci/irq.c @@ -492,6 +492,26 @@ static int pirq_amd756_set(struct pci_dev *router, struct pci_dev *dev, int pirq return 1; } +/* + * PicoPower PT86C523 + */ +static int pirq_pico_get(struct pci_dev *router, struct pci_dev *dev, int pirq) +{ + outb(0x10 + ((pirq - 1) >> 1), 0x24); + return ((pirq - 1) & 1) ? (inb(0x26) >> 4) : (inb(0x26) & 0xf); +} + +static int pirq_pico_set(struct pci_dev *router, struct pci_dev *dev, int pirq, + int irq) +{ + unsigned int x; + outb(0x10 + ((pirq - 1) >> 1), 0x24); + x = inb(0x26); + x = ((pirq - 1) & 1) ? ((x & 0x0f) | (irq << 4)) : ((x & 0xf0) | (irq)); + outb(x, 0x26); + return 1; +} + #ifdef CONFIG_PCI_BIOS static int pirq_bios_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq) @@ -721,6 +741,24 @@ static __init int amd_router_probe(struct irq_router *r, struct pci_dev *router, return 1; } +static __init int pico_router_probe(struct irq_router *r, struct pci_dev *router, u16 device) +{ + switch (device) { + case PCI_DEVICE_ID_PICOPOWER_PT86C523: + r->name = "PicoPower PT86C523"; + r->get = pirq_pico_get; + r->set = pirq_pico_set; + return 1; + + case PCI_DEVICE_ID_PICOPOWER_PT86C523BBP: + r->name = "PicoPower PT86C523 rev. BB+"; + r->get = pirq_pico_get; + r->set = pirq_pico_set; + return 1; + } + return 0; +} + static __initdata struct irq_router_handler pirq_routers[] = { { PCI_VENDOR_ID_INTEL, intel_router_probe }, { PCI_VENDOR_ID_AL, ali_router_probe }, @@ -732,6 +770,7 @@ static __initdata struct irq_router_handler pirq_routers[] = { { PCI_VENDOR_ID_VLSI, vlsi_router_probe }, { PCI_VENDOR_ID_SERVERWORKS, serverworks_router_probe }, { PCI_VENDOR_ID_AMD, amd_router_probe }, + { PCI_VENDOR_ID_PICOPOWER, pico_router_probe }, /* Someone with docs needs to add the ATI Radeon IGP */ { 0, NULL } }; diff --git a/arch/x86/pci/pci.h b/arch/x86/pci/pci.h index 8c66f27..ac56d39 100644 --- a/arch/x86/pci/pci.h +++ b/arch/x86/pci/pci.h @@ -26,6 +26,8 @@ #define PCI_ASSIGN_ROMS 0x1000 #define PCI_BIOS_IRQ_SCAN 0x2000 #define PCI_ASSIGN_ALL_BUSSES 0x4000 +#define PCI_CAN_SKIP_ISA_ALIGN 0x8000 +#define PCI_USE__CRS 0x10000 extern unsigned int pci_probe; extern unsigned long pirq_table_addr; diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index eb80f5a..cf013cb 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -738,6 +738,11 @@ config PCI_MMCONFIG bool "Support mmconfig PCI config space access" depends on PCI && ACPI +config PCI_DOMAINS + bool + depends on PCI + default y + source "drivers/pci/pcie/Kconfig" source "drivers/pci/Kconfig" diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c index 2305cc4..a96b739 100644 --- a/drivers/pci/hotplug/cpqphp_core.c +++ b/drivers/pci/hotplug/cpqphp_core.c @@ -549,7 +549,7 @@ get_slot_mapping(struct pci_bus *bus, u8 bus_num, u8 dev_num, u8 *slot) * slot. */ bus->number = tbus; pci_bus_read_config_dword(bus, PCI_DEVFN(tdevice, 0), - PCI_REVISION_ID, &work); + PCI_CLASS_REVISION, &work); if ((work >> 8) == PCI_TO_PCI_BRIDGE_CLASS) { pci_bus_read_config_dword(bus, diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c index 37d72f1..3ef0a48 100644 --- a/drivers/pci/hotplug/cpqphp_ctrl.c +++ b/drivers/pci/hotplug/cpqphp_ctrl.c @@ -37,6 +37,7 @@ #include <linux/smp_lock.h> #include <linux/pci.h> #include <linux/pci_hotplug.h> +#include <linux/kthread.h> #include "cpqphp.h" static u32 configure_new_device(struct controller* ctrl, struct pci_func *func, @@ -45,34 +46,20 @@ static int configure_new_function(struct controller* ctrl, struct pci_func *func u8 behind_bridge, struct resource_lists *resources); static void interrupt_event_handler(struct controller *ctrl); -static struct semaphore event_semaphore; /* mutex for process loop (up if something to process) */ -static struct semaphore event_exit; /* guard ensure thread has exited before calling it quits */ -static int event_finished; -static unsigned long pushbutton_pending; /* = 0 */ -/* things needed for the long_delay function */ -static struct semaphore delay_sem; -static wait_queue_head_t delay_wait; +static struct task_struct *cpqhp_event_thread; +static unsigned long pushbutton_pending; /* = 0 */ /* delay is in jiffies to wait for */ static void long_delay(int delay) { - DECLARE_WAITQUEUE(wait, current); - - /* only allow 1 customer into the delay queue at once - * yes this makes some people wait even longer, but who really cares? - * this is for _huge_ delays to make the hardware happy as the - * signals bounce around + /* + * XXX(hch): if someone is bored please convert all callers + * to call msleep_interruptible directly. They really want + * to specify timeouts in natural units and spend a lot of + * effort converting them to jiffies.. */ - down (&delay_sem); - - init_waitqueue_head(&delay_wait); - - add_wait_queue(&delay_wait, &wait); msleep_interruptible(jiffies_to_msecs(delay)); - remove_wait_queue(&delay_wait, &wait); - - up(&delay_sem); } @@ -955,8 +942,8 @@ irqreturn_t cpqhp_ctrl_intr(int IRQ, void *data) } if (schedule_flag) { - up(&event_semaphore); - dbg("Signal event_semaphore\n"); + wake_up_process(cpqhp_event_thread); + dbg("Waking even thread"); } return IRQ_HANDLED; } @@ -973,16 +960,13 @@ struct pci_func *cpqhp_slot_create(u8 busnumber) struct pci_func *new_slot; struct pci_func *next; - new_slot = kmalloc(sizeof(*new_slot), GFP_KERNEL); - + new_slot = kzalloc(sizeof(*new_slot), GFP_KERNEL); if (new_slot == NULL) { /* I'm not dead yet! * You will be. */ return new_slot; } - memset(new_slot, 0, sizeof(struct pci_func)); - new_slot->next = NULL; new_slot->configured = 1; @@ -1738,7 +1722,7 @@ static u32 remove_board(struct pci_func * func, u32 replace_flag, struct control static void pushbutton_helper_thread(unsigned long data) { pushbutton_pending = data; - up(&event_semaphore); + wake_up_process(cpqhp_event_thread); } @@ -1747,13 +1731,13 @@ static int event_thread(void* data) { struct controller *ctrl; - daemonize("phpd_event"); - while (1) { dbg("!!!!event_thread sleeping\n"); - down_interruptible (&event_semaphore); - dbg("event_thread woken finished = %d\n", event_finished); - if (event_finished) break; + set_current_state(TASK_INTERRUPTIBLE); + schedule(); + + if (kthread_should_stop()) + break; /* Do stuff here */ if (pushbutton_pending) cpqhp_pushbutton_thread(pushbutton_pending); @@ -1762,38 +1746,24 @@ static int event_thread(void* data) interrupt_event_handler(ctrl); } dbg("event_thread signals exit\n"); - up(&event_exit); return 0; } - int cpqhp_event_start_thread(void) { - int pid; - - /* initialize our semaphores */ - init_MUTEX(&delay_sem); - init_MUTEX_LOCKED(&event_semaphore); - init_MUTEX_LOCKED(&event_exit); - event_finished=0; - - pid = kernel_thread(event_thread, NULL, 0); - if (pid < 0) { + cpqhp_event_thread = kthread_run(event_thread, NULL, "phpd_event"); + if (IS_ERR(cpqhp_event_thread)) { err ("Can't start up our event thread\n"); - return -1; + return PTR_ERR(cpqhp_event_thread); } - dbg("Our event thread pid = %d\n", pid); + return 0; } void cpqhp_event_stop_thread(void) { - event_finished = 1; - dbg("event_thread finish command given\n"); - up(&event_semaphore); - dbg("wait for event_thread to exit\n"); - down(&event_exit); + kthread_stop(cpqhp_event_thread); } diff --git a/drivers/pci/hotplug/ibmphp_hpc.c b/drivers/pci/hotplug/ibmphp_hpc.c index d06ccb6..c31e7bf 100644 --- a/drivers/pci/hotplug/ibmphp_hpc.c +++ b/drivers/pci/hotplug/ibmphp_hpc.c @@ -35,7 +35,7 @@ #include <linux/init.h> #include <linux/mutex.h> #include <linux/sched.h> - +#include <linux/kthread.h> #include "ibmphp.h" static int to_debug = 0; @@ -101,12 +101,11 @@ static int to_debug = 0; //---------------------------------------------------------------------------- // global variables //---------------------------------------------------------------------------- -static int ibmphp_shutdown; -static int tid_poll; static struct mutex sem_hpcaccess; // lock access to HPC static struct semaphore semOperations; // lock all operations and // access to data structures static struct semaphore sem_exit; // make sure polling thread goes away +static struct task_struct *ibmphp_poll_thread; //---------------------------------------------------------------------------- // local function prototypes //---------------------------------------------------------------------------- @@ -116,10 +115,9 @@ static u8 hpc_writecmdtoindex (u8, u8); static u8 hpc_readcmdtoindex (u8, u8); static void get_hpc_access (void); static void free_hpc_access (void); -static void poll_hpc (void); +static int poll_hpc(void *data); static int process_changeinstatus (struct slot *, struct slot *); static int process_changeinlatch (u8, u8, struct controller *); -static int hpc_poll_thread (void *); static int hpc_wait_ctlr_notworking (int, struct controller *, void __iomem *, u8 *); //---------------------------------------------------------------------------- @@ -137,8 +135,6 @@ void __init ibmphp_hpc_initvars (void) init_MUTEX (&semOperations); init_MUTEX_LOCKED (&sem_exit); to_debug = 0; - ibmphp_shutdown = 0; - tid_poll = 0; debug ("%s - Exit\n", __FUNCTION__); } @@ -819,7 +815,7 @@ void ibmphp_unlock_operations (void) #define POLL_LATCH_REGISTER 0 #define POLL_SLOTS 1 #define POLL_SLEEP 2 -static void poll_hpc (void) +static int poll_hpc(void *data) { struct slot myslot; struct slot *pslot = NULL; @@ -833,10 +829,7 @@ static void poll_hpc (void) debug ("%s - Entry\n", __FUNCTION__); - while (!ibmphp_shutdown) { - if (ibmphp_shutdown) - break; - + while (!kthread_should_stop()) { /* try to get the lock to do some kind of hardware access */ down (&semOperations); @@ -896,7 +889,7 @@ static void poll_hpc (void) up (&semOperations); msleep(POLL_INTERVAL_SEC * 1000); - if (ibmphp_shutdown) + if (kthread_should_stop()) break; down (&semOperations); @@ -915,6 +908,7 @@ static void poll_hpc (void) } up (&sem_exit); debug ("%s - Exit\n", __FUNCTION__); + return 0; } @@ -1050,47 +1044,20 @@ static int process_changeinlatch (u8 old, u8 new, struct controller *ctrl) } /*---------------------------------------------------------------------- -* Name: hpc_poll_thread -* -* Action: polling -* -* Return 0 -* Value: -*---------------------------------------------------------------------*/ -static int hpc_poll_thread (void *data) -{ - debug ("%s - Entry\n", __FUNCTION__); - - daemonize("hpc_poll"); - allow_signal(SIGKILL); - - poll_hpc (); - - tid_poll = 0; - debug ("%s - Exit\n", __FUNCTION__); - return 0; -} - - -/*---------------------------------------------------------------------- * Name: ibmphp_hpc_start_poll_thread * * Action: start polling thread *---------------------------------------------------------------------*/ int __init ibmphp_hpc_start_poll_thread (void) { - int rc = 0; - debug ("%s - Entry\n", __FUNCTION__); - tid_poll = kernel_thread (hpc_poll_thread, NULL, 0); - if (tid_poll < 0) { + ibmphp_poll_thread = kthread_run(poll_hpc, NULL, "hpc_poll"); + if (IS_ERR(ibmphp_poll_thread)) { err ("%s - Error, thread not started\n", __FUNCTION__); - rc = -1; + return PTR_ERR(ibmphp_poll_thread); } - - debug ("%s - Exit tid_poll[%d] rc[%d]\n", __FUNCTION__, tid_poll, rc); - return rc; + return 0; } /*---------------------------------------------------------------------- @@ -1102,7 +1069,7 @@ void __exit ibmphp_hpc_stop_poll_thread (void) { debug ("%s - Entry\n", __FUNCTION__); - ibmphp_shutdown = 1; + kthread_stop(ibmphp_poll_thread); debug ("before locking operations \n"); ibmphp_lock_operations (); debug ("after locking operations \n"); diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c index e5d3f0b..6462ac3 100644 --- a/drivers/pci/hotplug/pciehp_core.c +++ b/drivers/pci/hotplug/pciehp_core.c @@ -304,8 +304,8 @@ static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 status) dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); hotplug_slot->info->attention_status = status; - - if (ATTN_LED(slot->ctrl->ctrlcap)) + + if (ATTN_LED(slot->ctrl->ctrlcap)) slot->hpc_ops->set_attention_status(slot, status); return 0; @@ -405,7 +405,7 @@ static int get_max_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_spe int retval; dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); - + retval = slot->hpc_ops->get_max_bus_speed(slot, value); if (retval < 0) *value = PCI_SPEED_UNKNOWN; @@ -419,7 +419,7 @@ static int get_cur_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_spe int retval; dbg("%s - physical_slot = %s\n", __FUNCTION__, hotplug_slot->name); - + retval = slot->hpc_ops->get_cur_bus_speed(slot, value); if (retval < 0) *value = PCI_SPEED_UNKNOWN; @@ -434,7 +434,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_ struct slot *t_slot; u8 value; struct pci_dev *pdev; - + ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL); if (!ctrl) { err("%s : out of memory\n", __FUNCTION__); @@ -502,23 +502,23 @@ static void pciehp_remove (struct pcie_device *dev) #ifdef CONFIG_PM static int pciehp_suspend (struct pcie_device *dev, pm_message_t state) { - printk("%s ENTRY\n", __FUNCTION__); + printk("%s ENTRY\n", __FUNCTION__); return 0; } static int pciehp_resume (struct pcie_device *dev) { - printk("%s ENTRY\n", __FUNCTION__); + printk("%s ENTRY\n", __FUNCTION__); return 0; } #endif -static struct pcie_port_service_id port_pci_ids[] = { { - .vendor = PCI_ANY_ID, +static struct pcie_port_service_id port_pci_ids[] = { { + .vendor = PCI_ANY_ID, .device = PCI_ANY_ID, .port_type = PCIE_ANY_PORT, .service_type = PCIE_PORT_SERVICE_HP, - .driver_data = 0, + .driver_data = 0, }, { /* end: all zeroes */ } }; static const char device_name[] = "hpdriver"; @@ -540,10 +540,6 @@ static int __init pcied_init(void) { int retval = 0; -#ifdef CONFIG_HOTPLUG_PCI_PCIE_POLL_EVENT_MODE - pciehp_poll_mode = 1; -#endif - retval = pcie_port_service_register(&hpdriver_portdrv); dbg("pcie_port_service_register = %d\n", retval); info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c index 98e541ffe..c8cb49c 100644 --- a/drivers/pci/hotplug/pciehp_ctrl.c +++ b/drivers/pci/hotplug/pciehp_ctrl.c @@ -173,7 +173,7 @@ u8 pciehp_handle_power_fault(u8 hp_slot, struct controller *ctrl) return 1; } -/* The following routines constitute the bulk of the +/* The following routines constitute the bulk of the hotplug controller logic */ @@ -181,7 +181,7 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot) { /* turn off slot, turn on Amber LED, turn off Green LED if supported*/ if (POWER_CTRL(ctrl->ctrlcap)) { - if (pslot->hpc_ops->power_off_slot(pslot)) { + if (pslot->hpc_ops->power_off_slot(pslot)) { err("%s: Issue of Slot Power Off command failed\n", __FUNCTION__); return; @@ -189,7 +189,7 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot) } if (PWR_LED(ctrl->ctrlcap)) - pslot->hpc_ops->green_led_off(pslot); + pslot->hpc_ops->green_led_off(pslot); if (ATTN_LED(ctrl->ctrlcap)) { if (pslot->hpc_ops->set_attention_status(pslot, 1)) { @@ -231,7 +231,7 @@ static int board_added(struct slot *p_slot) if (retval) return retval; } - + if (PWR_LED(ctrl->ctrlcap)) p_slot->hpc_ops->green_led_blink(p_slot); @@ -548,7 +548,7 @@ int pciehp_enable_slot(struct slot *p_slot) mutex_unlock(&p_slot->ctrl->crit_sect); return -ENODEV; } - if (MRL_SENS(p_slot->ctrl->ctrlcap)) { + if (MRL_SENS(p_slot->ctrl->ctrlcap)) { rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); if (rc || getstatus) { info("%s: latch open on slot(%s)\n", __FUNCTION__, @@ -557,8 +557,8 @@ int pciehp_enable_slot(struct slot *p_slot) return -ENODEV; } } - - if (POWER_CTRL(p_slot->ctrl->ctrlcap)) { + + if (POWER_CTRL(p_slot->ctrl->ctrlcap)) { rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus); if (rc || getstatus) { info("%s: already enabled on slot(%s)\n", __FUNCTION__, @@ -593,7 +593,7 @@ int pciehp_disable_slot(struct slot *p_slot) /* Check to see if (latch closed, card present, power on) */ mutex_lock(&p_slot->ctrl->crit_sect); - if (!HP_SUPR_RM(p_slot->ctrl->ctrlcap)) { + if (!HP_SUPR_RM(p_slot->ctrl->ctrlcap)) { ret = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus); if (ret || !getstatus) { info("%s: no adapter on slot(%s)\n", __FUNCTION__, @@ -603,7 +603,7 @@ int pciehp_disable_slot(struct slot *p_slot) } } - if (MRL_SENS(p_slot->ctrl->ctrlcap)) { + if (MRL_SENS(p_slot->ctrl->ctrlcap)) { ret = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); if (ret || getstatus) { info("%s: latch open on slot(%s)\n", __FUNCTION__, @@ -613,7 +613,7 @@ int pciehp_disable_slot(struct slot *p_slot) } } - if (POWER_CTRL(p_slot->ctrl->ctrlcap)) { + if (POWER_CTRL(p_slot->ctrl->ctrlcap)) { ret = p_slot->hpc_ops->get_power_status(p_slot, &getstatus); if (ret || !getstatus) { info("%s: already disabled slot(%s)\n", __FUNCTION__, diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c index 016eea9..06d025b 100644 --- a/drivers/pci/hotplug/pciehp_hpc.c +++ b/drivers/pci/hotplug/pciehp_hpc.c @@ -39,37 +39,6 @@ #include "../pci.h" #include "pciehp.h" -#ifdef DEBUG -#define DBG_K_TRACE_ENTRY ((unsigned int)0x00000001) /* On function entry */ -#define DBG_K_TRACE_EXIT ((unsigned int)0x00000002) /* On function exit */ -#define DBG_K_INFO ((unsigned int)0x00000004) /* Info messages */ -#define DBG_K_ERROR ((unsigned int)0x00000008) /* Error messages */ -#define DBG_K_TRACE (DBG_K_TRACE_ENTRY|DBG_K_TRACE_EXIT) -#define DBG_K_STANDARD (DBG_K_INFO|DBG_K_ERROR|DBG_K_TRACE) -/* Redefine this flagword to set debug level */ -#define DEBUG_LEVEL DBG_K_STANDARD - -#define DEFINE_DBG_BUFFER char __dbg_str_buf[256]; - -#define DBG_PRINT( dbg_flags, args... ) \ - do { \ - if ( DEBUG_LEVEL & ( dbg_flags ) ) \ - { \ - int len; \ - len = sprintf( __dbg_str_buf, "%s:%d: %s: ", \ - __FILE__, __LINE__, __FUNCTION__ ); \ - sprintf( __dbg_str_buf + len, args ); \ - printk( KERN_NOTICE "%s\n", __dbg_str_buf ); \ - } \ - } while (0) - -#define DBG_ENTER_ROUTINE DBG_PRINT (DBG_K_TRACE_ENTRY, "%s", "[Entry]"); -#define DBG_LEAVE_ROUTINE DBG_PRINT (DBG_K_TRACE_EXIT, "%s", "[Exit]"); -#else -#define DEFINE_DBG_BUFFER -#define DBG_ENTER_ROUTINE -#define DBG_LEAVE_ROUTINE -#endif /* DEBUG */ static atomic_t pciehp_num_controllers = ATOMIC_INIT(0); @@ -160,10 +129,10 @@ static inline int pciehp_writel(struct controller *ctrl, int reg, u32 value) /* Link Width Encoding */ #define LNK_X1 0x01 #define LNK_X2 0x02 -#define LNK_X4 0x04 +#define LNK_X4 0x04 #define LNK_X8 0x08 #define LNK_X12 0x0C -#define LNK_X16 0x10 +#define LNK_X16 0x10 #define LNK_X32 0x20 /*Field definitions of Link Status Register */ @@ -221,8 +190,6 @@ static inline int pciehp_writel(struct controller *ctrl, int reg, u32 value) #define EMI_STATE 0x0080 #define EMI_STATUS_BIT 7 -DEFINE_DBG_BUFFER /* Debug string buffer for entire HPC defined here */ - static irqreturn_t pcie_isr(int irq, void *dev_id); static void start_int_poll_timer(struct controller *ctrl, int sec); @@ -231,14 +198,12 @@ static void int_poll_timeout(unsigned long data) { struct controller *ctrl = (struct controller *)data; - DBG_ENTER_ROUTINE - /* Poll for interrupt events. regs == NULL => polling */ pcie_isr(0, ctrl); init_timer(&ctrl->poll_timer); if (!pciehp_poll_time) - pciehp_poll_time = 2; /* reset timer to poll in 2 secs if user doesn't specify at module installation*/ + pciehp_poll_time = 2; /* default polling interval is 2 sec */ start_int_poll_timer(ctrl, pciehp_poll_time); } @@ -289,8 +254,6 @@ static int pcie_write_cmd(struct slot *slot, u16 cmd, u16 mask) u16 slot_ctrl; unsigned long flags; - DBG_ENTER_ROUTINE - mutex_lock(&ctrl->ctrl_lock); retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); @@ -299,7 +262,7 @@ static int pcie_write_cmd(struct slot *slot, u16 cmd, u16 mask) goto out; } - if ((slot_status & CMD_COMPLETED) == CMD_COMPLETED ) { + if ((slot_status & CMD_COMPLETED) == CMD_COMPLETED ) { /* After 1 sec and CMD_COMPLETED still not set, just proceed forward to issue the next command according to spec. Just print out the error message */ @@ -332,7 +295,6 @@ static int pcie_write_cmd(struct slot *slot, u16 cmd, u16 mask) retval = pcie_wait_cmd(ctrl); out: mutex_unlock(&ctrl->ctrl_lock); - DBG_LEAVE_ROUTINE return retval; } @@ -341,8 +303,6 @@ static int hpc_check_lnk_status(struct controller *ctrl) u16 lnk_status; int retval = 0; - DBG_ENTER_ROUTINE - retval = pciehp_readw(ctrl, LNKSTATUS, &lnk_status); if (retval) { err("%s: Cannot read LNKSTATUS register\n", __FUNCTION__); @@ -350,26 +310,22 @@ static int hpc_check_lnk_status(struct controller *ctrl) } dbg("%s: lnk_status = %x\n", __FUNCTION__, lnk_status); - if ( (lnk_status & LNK_TRN) || (lnk_status & LNK_TRN_ERR) || + if ( (lnk_status & LNK_TRN) || (lnk_status & LNK_TRN_ERR) || !(lnk_status & NEG_LINK_WD)) { err("%s : Link Training Error occurs \n", __FUNCTION__); retval = -1; return retval; } - DBG_LEAVE_ROUTINE return retval; } - static int hpc_get_attention_status(struct slot *slot, u8 *status) { struct controller *ctrl = slot->ctrl; u16 slot_ctrl; u8 atten_led_state; int retval = 0; - - DBG_ENTER_ROUTINE retval = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl); if (retval) { @@ -400,7 +356,6 @@ static int hpc_get_attention_status(struct slot *slot, u8 *status) break; } - DBG_LEAVE_ROUTINE return 0; } @@ -410,8 +365,6 @@ static int hpc_get_power_status(struct slot *slot, u8 *status) u16 slot_ctrl; u8 pwr_state; int retval = 0; - - DBG_ENTER_ROUTINE retval = pciehp_readw(ctrl, SLOTCTRL, &slot_ctrl); if (retval) { @@ -428,35 +381,30 @@ static int hpc_get_power_status(struct slot *slot, u8 *status) *status = 1; break; case 1: - *status = 0; + *status = 0; break; default: *status = 0xFF; break; } - DBG_LEAVE_ROUTINE return retval; } - static int hpc_get_latch_status(struct slot *slot, u8 *status) { struct controller *ctrl = slot->ctrl; u16 slot_status; int retval = 0; - DBG_ENTER_ROUTINE - retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (retval) { err("%s: Cannot read SLOTSTATUS register\n", __FUNCTION__); return retval; } - *status = (((slot_status & MRL_STATE) >> 5) == 0) ? 0 : 1; + *status = (((slot_status & MRL_STATE) >> 5) == 0) ? 0 : 1; - DBG_LEAVE_ROUTINE return 0; } @@ -467,8 +415,6 @@ static int hpc_get_adapter_status(struct slot *slot, u8 *status) u8 card_state; int retval = 0; - DBG_ENTER_ROUTINE - retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (retval) { err("%s: Cannot read SLOTSTATUS register\n", __FUNCTION__); @@ -477,7 +423,6 @@ static int hpc_get_adapter_status(struct slot *slot, u8 *status) card_state = (u8)((slot_status & PRSN_STATE) >> 6); *status = (card_state == 1) ? 1 : 0; - DBG_LEAVE_ROUTINE return 0; } @@ -488,16 +433,13 @@ static int hpc_query_power_fault(struct slot *slot) u8 pwr_fault; int retval = 0; - DBG_ENTER_ROUTINE - retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (retval) { err("%s: Cannot check for power fault\n", __FUNCTION__); return retval; } pwr_fault = (u8)((slot_status & PWR_FAULT_DETECTED) >> 1); - - DBG_LEAVE_ROUTINE + return pwr_fault; } @@ -507,8 +449,6 @@ static int hpc_get_emi_status(struct slot *slot, u8 *status) u16 slot_status; int retval = 0; - DBG_ENTER_ROUTINE - retval = pciehp_readw(ctrl, SLOTSTATUS, &slot_status); if (retval) { err("%s : Cannot check EMI status\n", __FUNCTION__); @@ -516,7 +456,6 @@ static int hpc_get_emi_status(struct slot *slot, u8 *status) } *status = (slot_status & EMI_STATE) >> EMI_STATUS_BIT; - DBG_LEAVE_ROUTINE return retval; } @@ -526,8 +465,6 @@ static int hpc_toggle_emi(struct slot *slot) u16 cmd_mask; int rc; - DBG_ENTER_ROUTINE - slot_cmd = EMI_CTRL; cmd_mask = EMI_CTRL; if (!pciehp_poll_mode) { @@ -537,7 +474,7 @@ static int hpc_toggle_emi(struct slot *slot) rc = pcie_write_cmd(slot, slot_cmd, cmd_mask); slot->last_emi_toggle = get_seconds(); - DBG_LEAVE_ROUTINE + return rc; } @@ -548,8 +485,6 @@ static int hpc_set_attention_status(struct slot *slot, u8 value) u16 cmd_mask; int rc; - DBG_ENTER_ROUTINE - cmd_mask = ATTN_LED_CTRL; switch (value) { case 0 : /* turn off */ @@ -572,19 +507,15 @@ static int hpc_set_attention_status(struct slot *slot, u8 value) rc = pcie_write_cmd(slot, slot_cmd, cmd_mask); dbg("%s: SLOTCTRL %x write cmd %x\n", __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd); - - DBG_LEAVE_ROUTINE + return rc; } - static void hpc_set_green_led_on(struct slot *slot) { struct controller *ctrl = slot->ctrl; u16 slot_cmd; u16 cmd_mask; - - DBG_ENTER_ROUTINE slot_cmd = 0x0100; cmd_mask = PWR_LED_CTRL; @@ -597,8 +528,6 @@ static void hpc_set_green_led_on(struct slot *slot) dbg("%s: SLOTCTRL %x write cmd %x\n", __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd); - DBG_LEAVE_ROUTINE - return; } static void hpc_set_green_led_off(struct slot *slot) @@ -607,8 +536,6 @@ static void hpc_set_green_led_off(struct slot *slot) u16 slot_cmd; u16 cmd_mask; - DBG_ENTER_ROUTINE - slot_cmd = 0x0300; cmd_mask = PWR_LED_CTRL; if (!pciehp_poll_mode) { @@ -619,9 +546,6 @@ static void hpc_set_green_led_off(struct slot *slot) pcie_write_cmd(slot, slot_cmd, cmd_mask); dbg("%s: SLOTCTRL %x write cmd %x\n", __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd); - - DBG_LEAVE_ROUTINE - return; } static void hpc_set_green_led_blink(struct slot *slot) @@ -629,8 +553,6 @@ static void hpc_set_green_led_blink(struct slot *slot) struct controller *ctrl = slot->ctrl; u16 slot_cmd; u16 cmd_mask; - - DBG_ENTER_ROUTINE slot_cmd = 0x0200; cmd_mask = PWR_LED_CTRL; @@ -643,14 +565,10 @@ static void hpc_set_green_led_blink(struct slot *slot) dbg("%s: SLOTCTRL %x write cmd %x\n", __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd); - DBG_LEAVE_ROUTINE - return; } static void hpc_release_ctlr(struct controller *ctrl) { - DBG_ENTER_ROUTINE - if (pciehp_poll_mode) del_timer(&ctrl->poll_timer); else @@ -662,8 +580,6 @@ static void hpc_release_ctlr(struct controller *ctrl) */ if (atomic_dec_and_test(&pciehp_num_controllers)) destroy_workqueue(pciehp_wq); - - DBG_LEAVE_ROUTINE } static int hpc_power_on_slot(struct slot * slot) @@ -674,8 +590,6 @@ static int hpc_power_on_slot(struct slot * slot) u16 slot_status; int retval = 0; - DBG_ENTER_ROUTINE - dbg("%s: slot->hp_slot %x\n", __FUNCTION__, slot->hp_slot); /* Clear sticky power-fault bit from previous power failures */ @@ -719,8 +633,6 @@ static int hpc_power_on_slot(struct slot * slot) dbg("%s: SLOTCTRL %x write cmd %x\n", __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd); - DBG_LEAVE_ROUTINE - return retval; } @@ -731,8 +643,6 @@ static int hpc_power_off_slot(struct slot * slot) u16 cmd_mask; int retval = 0; - DBG_ENTER_ROUTINE - dbg("%s: slot->hp_slot %x\n", __FUNCTION__, slot->hp_slot); slot_cmd = POWER_OFF; @@ -764,8 +674,6 @@ static int hpc_power_off_slot(struct slot * slot) dbg("%s: SLOTCTRL %x write cmd %x\n", __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_cmd); - DBG_LEAVE_ROUTINE - return retval; } @@ -784,8 +692,8 @@ static irqreturn_t pcie_isr(int irq, void *dev_id) return IRQ_NONE; } - intr_detect = ( ATTN_BUTTN_PRESSED | PWR_FAULT_DETECTED | MRL_SENS_CHANGED | - PRSN_DETECT_CHANGED | CMD_COMPLETED ); + intr_detect = (ATTN_BUTTN_PRESSED | PWR_FAULT_DETECTED | + MRL_SENS_CHANGED | PRSN_DETECT_CHANGED | CMD_COMPLETED); intr_loc = slot_status & intr_detect; @@ -807,7 +715,8 @@ static irqreturn_t pcie_isr(int irq, void *dev_id) dbg("%s: pciehp_readw(SLOTCTRL) with value %x\n", __FUNCTION__, temp_word); - temp_word = (temp_word & ~HP_INTR_ENABLE & ~CMD_CMPL_INTR_ENABLE) | 0x00; + temp_word = (temp_word & ~HP_INTR_ENABLE & + ~CMD_CMPL_INTR_ENABLE) | 0x00; rc = pciehp_writew(ctrl, SLOTCTRL, temp_word); if (rc) { err("%s: Cannot write to SLOTCTRL register\n", @@ -825,7 +734,7 @@ static irqreturn_t pcie_isr(int irq, void *dev_id) } dbg("%s: pciehp_readw(SLOTSTATUS) with value %x\n", __FUNCTION__, slot_status); - + /* Clear command complete interrupt caused by this write */ temp_word = 0x1f; rc = pciehp_writew(ctrl, SLOTSTATUS, temp_word); @@ -835,10 +744,10 @@ static irqreturn_t pcie_isr(int irq, void *dev_id) return IRQ_NONE; } } - + if (intr_loc & CMD_COMPLETED) { - /* - * Command Complete Interrupt Pending + /* + * Command Complete Interrupt Pending */ ctrl->cmd_busy = 0; wake_up_interruptible(&ctrl->queue); @@ -892,7 +801,7 @@ static irqreturn_t pcie_isr(int irq, void *dev_id) __FUNCTION__); return IRQ_NONE; } - + /* Clear command complete interrupt caused by this write */ temp_word = 0x1F; rc = pciehp_writew(ctrl, SLOTSTATUS, temp_word); @@ -904,19 +813,17 @@ static irqreturn_t pcie_isr(int irq, void *dev_id) dbg("%s: pciehp_writew(SLOTSTATUS) with value %x\n", __FUNCTION__, temp_word); } - + return IRQ_HANDLED; } -static int hpc_get_max_lnk_speed (struct slot *slot, enum pci_bus_speed *value) +static int hpc_get_max_lnk_speed(struct slot *slot, enum pci_bus_speed *value) { struct controller *ctrl = slot->ctrl; enum pcie_link_speed lnk_speed; u32 lnk_cap; int retval = 0; - DBG_ENTER_ROUTINE - retval = pciehp_readl(ctrl, LNKCAP, &lnk_cap); if (retval) { err("%s: Cannot read LNKCAP register\n", __FUNCTION__); @@ -934,19 +841,18 @@ static int hpc_get_max_lnk_speed (struct slot *slot, enum pci_bus_speed *value) *value = lnk_speed; dbg("Max link speed = %d\n", lnk_speed); - DBG_LEAVE_ROUTINE + return retval; } -static int hpc_get_max_lnk_width (struct slot *slot, enum pcie_link_width *value) +static int hpc_get_max_lnk_width(struct slot *slot, + enum pcie_link_width *value) { struct controller *ctrl = slot->ctrl; enum pcie_link_width lnk_wdth; u32 lnk_cap; int retval = 0; - DBG_ENTER_ROUTINE - retval = pciehp_readl(ctrl, LNKCAP, &lnk_cap); if (retval) { err("%s: Cannot read LNKCAP register\n", __FUNCTION__); @@ -985,19 +891,17 @@ static int hpc_get_max_lnk_width (struct slot *slot, enum pcie_link_width *value *value = lnk_wdth; dbg("Max link width = %d\n", lnk_wdth); - DBG_LEAVE_ROUTINE + return retval; } -static int hpc_get_cur_lnk_speed (struct slot *slot, enum pci_bus_speed *value) +static int hpc_get_cur_lnk_speed(struct slot *slot, enum pci_bus_speed *value) { struct controller *ctrl = slot->ctrl; enum pcie_link_speed lnk_speed = PCI_SPEED_UNKNOWN; int retval = 0; u16 lnk_status; - DBG_ENTER_ROUTINE - retval = pciehp_readw(ctrl, LNKSTATUS, &lnk_status); if (retval) { err("%s: Cannot read LNKSTATUS register\n", __FUNCTION__); @@ -1015,25 +919,24 @@ static int hpc_get_cur_lnk_speed (struct slot *slot, enum pci_bus_speed *value) *value = lnk_speed; dbg("Current link speed = %d\n", lnk_speed); - DBG_LEAVE_ROUTINE + return retval; } -static int hpc_get_cur_lnk_width (struct slot *slot, enum pcie_link_width *value) +static int hpc_get_cur_lnk_width(struct slot *slot, + enum pcie_link_width *value) { struct controller *ctrl = slot->ctrl; enum pcie_link_width lnk_wdth = PCIE_LNK_WIDTH_UNKNOWN; int retval = 0; u16 lnk_status; - DBG_ENTER_ROUTINE - retval = pciehp_readw(ctrl, LNKSTATUS, &lnk_status); if (retval) { err("%s: Cannot read LNKSTATUS register\n", __FUNCTION__); return retval; } - + switch ((lnk_status & 0x03F0) >> 4){ case 0: lnk_wdth = PCIE_LNK_WIDTH_RESRV; @@ -1066,7 +969,7 @@ static int hpc_get_cur_lnk_width (struct slot *slot, enum pcie_link_width *value *value = lnk_wdth; dbg("Current link width = %d\n", lnk_wdth); - DBG_LEAVE_ROUTINE + return retval; } @@ -1085,12 +988,12 @@ static struct hpc_ops pciehp_hpc_ops = { .get_cur_bus_speed = hpc_get_cur_lnk_speed, .get_max_lnk_width = hpc_get_max_lnk_width, .get_cur_lnk_width = hpc_get_cur_lnk_width, - + .query_power_fault = hpc_query_power_fault, .green_led_on = hpc_set_green_led_on, .green_led_off = hpc_set_green_led_off, .green_led_blink = hpc_set_green_led_blink, - + .release_ctlr = hpc_release_ctlr, .check_lnk_status = hpc_check_lnk_status, }; @@ -1138,6 +1041,7 @@ int pciehp_acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev) dbg("Trying to get hotplug control for %s \n", (char *)string.pointer); status = pci_osc_control_set(handle, + OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL | OSC_PCI_EXPRESS_NATIVE_HP_CONTROL); if (status == AE_NOT_FOUND) status = acpi_run_oshp(handle); @@ -1163,8 +1067,6 @@ int pciehp_acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev) } #endif - - int pcie_init(struct controller * ctrl, struct pcie_device *dev) { int rc; @@ -1176,8 +1078,6 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) u16 slot_status, slot_ctrl; struct pci_dev *pdev; - DBG_ENTER_ROUTINE - pdev = dev->port; ctrl->pci_dev = pdev; /* save pci_dev in context */ @@ -1201,9 +1101,11 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) dbg("%s: CAPREG offset %x cap_reg %x\n", __FUNCTION__, ctrl->cap_base + CAPREG, cap_reg); - if (((cap_reg & SLOT_IMPL) == 0) || (((cap_reg & DEV_PORT_TYPE) != 0x0040) + if (((cap_reg & SLOT_IMPL) == 0) || + (((cap_reg & DEV_PORT_TYPE) != 0x0040) && ((cap_reg & DEV_PORT_TYPE) != 0x0060))) { - dbg("%s : This is not a root port or the port is not connected to a slot\n", __FUNCTION__); + dbg("%s : This is not a root port or the port is not " + "connected to a slot\n", __FUNCTION__); goto abort_free_ctlr; } @@ -1236,14 +1138,15 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) dbg("%s: SLOTCTRL offset %x slot_ctrl %x\n", __FUNCTION__, ctrl->cap_base + SLOTCTRL, slot_ctrl); - for ( rc = 0; rc < DEVICE_COUNT_RESOURCE; rc++) + for (rc = 0; rc < DEVICE_COUNT_RESOURCE; rc++) if (pci_resource_len(pdev, rc) > 0) dbg("pci resource[%d] start=0x%llx(len=0x%llx)\n", rc, (unsigned long long)pci_resource_start(pdev, rc), (unsigned long long)pci_resource_len(pdev, rc)); - info("HPC vendor_id %x device_id %x ss_vid %x ss_did %x\n", pdev->vendor, pdev->device, - pdev->subsystem_vendor, pdev->subsystem_device); + info("HPC vendor_id %x device_id %x ss_vid %x ss_did %x\n", + pdev->vendor, pdev->device, + pdev->subsystem_vendor, pdev->subsystem_device); mutex_init(&ctrl->crit_sect); mutex_init(&ctrl->ctrl_lock); @@ -1267,7 +1170,8 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) dbg("%s: SLOTCTRL %x value read %x\n", __FUNCTION__, ctrl->cap_base + SLOTCTRL, temp_word); - temp_word = (temp_word & ~HP_INTR_ENABLE & ~CMD_CMPL_INTR_ENABLE) | 0x00; + temp_word = (temp_word & ~HP_INTR_ENABLE & ~CMD_CMPL_INTR_ENABLE) | + 0x00; rc = pciehp_writew(ctrl, SLOTCTRL, temp_word); if (rc) { @@ -1330,14 +1234,14 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) if (ATTN_BUTTN(slot_cap)) intr_enable = intr_enable | ATTN_BUTTN_ENABLE; - + if (POWER_CTRL(slot_cap)) intr_enable = intr_enable | PWR_FAULT_DETECT_ENABLE; - + if (MRL_SENS(slot_cap)) intr_enable = intr_enable | MRL_DETECT_ENABLE; - temp_word = (temp_word & ~intr_enable) | intr_enable; + temp_word = (temp_word & ~intr_enable) | intr_enable; if (pciehp_poll_mode) { temp_word = (temp_word & ~HP_INTR_ENABLE) | 0x0; @@ -1345,7 +1249,10 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) temp_word = (temp_word & ~HP_INTR_ENABLE) | HP_INTR_ENABLE; } - /* Unmask Hot-plug Interrupt Enable for the interrupt notification mechanism case */ + /* + * Unmask Hot-plug Interrupt Enable for the interrupt + * notification mechanism case. + */ rc = pciehp_writew(ctrl, SLOTCTRL, temp_word); if (rc) { err("%s: Cannot write to SLOTCTRL register\n", __FUNCTION__); @@ -1356,14 +1263,14 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) err("%s: Cannot read SLOTSTATUS register\n", __FUNCTION__); goto abort_disable_intr; } - + temp_word = 0x1F; /* Clear all events */ rc = pciehp_writew(ctrl, SLOTSTATUS, temp_word); if (rc) { err("%s: Cannot write to SLOTSTATUS register\n", __FUNCTION__); goto abort_disable_intr; } - + if (pciehp_force) { dbg("Bypassing BIOS check for pciehp use on %s\n", pci_name(ctrl->pci_dev)); @@ -1375,10 +1282,9 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev) ctrl->hpc_ops = &pciehp_hpc_ops; - DBG_LEAVE_ROUTINE return 0; - /* We end up here for the many possible ways to fail this API. */ + /* We end up here for the many possible ways to fail this API. */ abort_disable_intr: rc = pciehp_readw(ctrl, SLOTCTRL, &temp_word); if (!rc) { @@ -1395,6 +1301,5 @@ abort_free_irq: free_irq(ctrl->pci_dev->irq, ctrl); abort_free_ctlr: - DBG_LEAVE_ROUTINE return -1; } diff --git a/drivers/pci/hotplug/pciehp_pci.c b/drivers/pci/hotplug/pciehp_pci.c index 854aaea..c424ade 100644 --- a/drivers/pci/hotplug/pciehp_pci.c +++ b/drivers/pci/hotplug/pciehp_pci.c @@ -243,9 +243,10 @@ int pciehp_configure_device(struct slot *p_slot) int pciehp_unconfigure_device(struct slot *p_slot) { - int rc = 0; + int ret, rc = 0; int j; u8 bctl = 0; + u8 presence = 0; struct pci_bus *parent = p_slot->ctrl->pci_dev->subordinate; dbg("%s: bus/dev = %x/%x\n", __FUNCTION__, p_slot->bus, @@ -263,23 +264,28 @@ int pciehp_unconfigure_device(struct slot *p_slot) continue; } if (temp->hdr_type == PCI_HEADER_TYPE_BRIDGE) { - pci_read_config_byte(temp, PCI_BRIDGE_CONTROL, &bctl); - if (bctl & PCI_BRIDGE_CTL_VGA) { - err("Cannot remove display device %s\n", + ret = p_slot->hpc_ops->get_adapter_status(p_slot, + &presence); + if (!ret && presence) { + pci_read_config_byte(temp, PCI_BRIDGE_CONTROL, + &bctl); + if (bctl & PCI_BRIDGE_CTL_VGA) { + err("Cannot remove display device %s\n", pci_name(temp)); - pci_dev_put(temp); - continue; + pci_dev_put(temp); + continue; + } } } pci_remove_bus_device(temp); pci_dev_put(temp); } - /* + /* * Some PCI Express root ports require fixup after hot-plug operation. */ - if (pcie_mch_quirk) + if (pcie_mch_quirk) pci_fixup_device(pci_fixup_final, p_slot->ctrl->pci_dev); - + return rc; } diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index be1df85..87e0161 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -132,7 +132,7 @@ void read_msi_msg(unsigned int irq, struct msi_msg *msg) pci_read_config_word(dev, msi_data_reg(pos, 1), &data); } else { msg->address_hi = 0; - pci_read_config_word(dev, msi_data_reg(pos, 1), &data); + pci_read_config_word(dev, msi_data_reg(pos, 0), &data); } msg->data = data; break; diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index f61be3a..6e2760b 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -54,7 +54,6 @@ store_new_id(struct device_driver *driver, const char *buf, size_t count) if (!dynid) return -ENOMEM; - INIT_LIST_HEAD(&dynid->node); dynid->id.vendor = vendor; dynid->id.device = device; dynid->id.subvendor = subvendor; @@ -65,7 +64,7 @@ store_new_id(struct device_driver *driver, const char *buf, size_t count) driver_data : 0UL; spin_lock(&pdrv->dynids.lock); - list_add_tail(&pdrv->dynids.list, &dynid->node); + list_add_tail(&dynid->node, &pdrv->dynids.list); spin_unlock(&pdrv->dynids.lock); if (get_driver(&pdrv->driver)) { diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 37c00f6..728b3c8 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -17,11 +17,16 @@ #include <linux/module.h> #include <linux/spinlock.h> #include <linux/string.h> +#include <linux/log2.h> #include <asm/dma.h> /* isa_dma_bridge_buggy */ #include "pci.h" unsigned int pci_pm_d3_delay = 10; +#ifdef CONFIG_PCI_DOMAINS +int pci_domains_supported = 1; +#endif + #define DEFAULT_CARDBUS_IO_SIZE (256) #define DEFAULT_CARDBUS_MEM_SIZE (64*1024*1024) /* pci=cbmemsize=nnM,cbiosize=nn can override this */ @@ -1454,7 +1459,7 @@ int pcix_set_mmrbc(struct pci_dev *dev, int mmrbc) int cap, err = -EINVAL; u32 stat, cmd, v, o; - if (mmrbc < 512 || mmrbc > 4096 || (mmrbc & (mmrbc-1))) + if (mmrbc < 512 || mmrbc > 4096 || !is_power_of_2(mmrbc)) goto out; v = ffs(mmrbc) - 10; @@ -1526,7 +1531,7 @@ int pcie_set_readrq(struct pci_dev *dev, int rq) int cap, err = -EINVAL; u16 ctl, v; - if (rq < 128 || rq > 4096 || (rq & (rq-1))) + if (rq < 128 || rq > 4096 || !is_power_of_2(rq)) goto out; v = (ffs(rq) - 8) << 12; @@ -1566,6 +1571,13 @@ int pci_select_bars(struct pci_dev *dev, unsigned long flags) return bars; } +static void __devinit pci_no_domains(void) +{ +#ifdef CONFIG_PCI_DOMAINS + pci_domains_supported = 0; +#endif +} + static int __devinit pci_init(void) { struct pci_dev *dev = NULL; @@ -1585,6 +1597,10 @@ static int __devinit pci_setup(char *str) if (*str && (str = pcibios_setup(str)) && *str) { if (!strcmp(str, "nomsi")) { pci_no_msi(); + } else if (!strcmp(str, "noaer")) { + pci_no_aer(); + } else if (!strcmp(str, "nodomains")) { + pci_no_domains(); } else if (!strncmp(str, "cbiosize=", 9)) { pci_cardbus_io_size = memparse(str + 9, &str); } else if (!strncmp(str, "cbmemsize=", 10)) { diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index b3a7d5b..6fda33d 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -51,6 +51,12 @@ void pci_restore_msi_state(struct pci_dev *dev); static inline void pci_restore_msi_state(struct pci_dev *dev) {} #endif +#ifdef CONFIG_PCIEAER +void pci_no_aer(void); +#else +static inline void pci_no_aer(void) { } +#endif + static inline int pci_no_d1d2(struct pci_dev *dev) { unsigned int parent_dstates = 0; diff --git a/drivers/pci/pcie/Kconfig b/drivers/pci/pcie/Kconfig index 0ad92a8..287a931 100644 --- a/drivers/pci/pcie/Kconfig +++ b/drivers/pci/pcie/Kconfig @@ -25,13 +25,4 @@ config HOTPLUG_PCI_PCIE When in doubt, say N. -config HOTPLUG_PCI_PCIE_POLL_EVENT_MODE - bool "Use polling mechanism for hot-plug events (for testing purpose)" - depends on HOTPLUG_PCI_PCIE - help - Say Y here if you want to use the polling mechanism for hot-plug - events for early platform testing. - - When in doubt, say N. - source "drivers/pci/pcie/aer/Kconfig" diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c index ad90a01..7a62f7d 100644 --- a/drivers/pci/pcie/aer/aerdrv.c +++ b/drivers/pci/pcie/aer/aerdrv.c @@ -81,6 +81,13 @@ static struct pcie_port_service_driver aerdriver = { .reset_link = aer_root_reset, }; +static int pcie_aer_disable; + +void pci_no_aer(void) +{ + pcie_aer_disable = 1; /* has priority over 'forceload' */ +} + /** * aer_irq - Root Port's ISR * @irq: IRQ assigned to Root Port @@ -327,6 +334,8 @@ static void aer_error_resume(struct pci_dev *dev) **/ static int __init aer_service_init(void) { + if (pcie_aer_disable) + return -ENXIO; return pcie_port_service_register(&aerdriver); } diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 171ca71..5db6b66 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -276,8 +276,7 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom) sz = pci_size(l, sz, (u32)PCI_ROM_ADDRESS_MASK); if (sz) { res->flags = (l & IORESOURCE_ROM_ENABLE) | - IORESOURCE_MEM | IORESOURCE_PREFETCH | - IORESOURCE_READONLY | IORESOURCE_CACHEABLE; + IORESOURCE_MEM | IORESOURCE_READONLY; res->start = l & PCI_ROM_ADDRESS_MASK; res->end = res->start + (unsigned long) sz; } @@ -597,7 +596,7 @@ int pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max, int pass pci_write_config_dword(dev, PCI_PRIMARY_BUS, buses); if (!is_cardbus) { - child->bridge_ctl = bctl | PCI_BRIDGE_CTL_NO_ISA; + child->bridge_ctl = bctl; /* * Adjust subordinate busnr in parent buses. * We do this before scanning for children because @@ -744,22 +743,46 @@ static int pci_setup_device(struct pci_dev * dev) */ if (class == PCI_CLASS_STORAGE_IDE) { u8 progif; + struct pci_bus_region region; + pci_read_config_byte(dev, PCI_CLASS_PROG, &progif); if ((progif & 1) == 0) { - dev->resource[0].start = 0x1F0; - dev->resource[0].end = 0x1F7; - dev->resource[0].flags = LEGACY_IO_RESOURCE; - dev->resource[1].start = 0x3F6; - dev->resource[1].end = 0x3F6; - dev->resource[1].flags = LEGACY_IO_RESOURCE; + struct resource resource = { + .start = 0x1F0, + .end = 0x1F7, + .flags = LEGACY_IO_RESOURCE, + }; + + pcibios_resource_to_bus(dev, ®ion, &resource); + dev->resource[0].start = region.start; + dev->resource[0].end = region.end; + dev->resource[0].flags = resource.flags; + resource.start = 0x3F6; + resource.end = 0x3F6; + resource.flags = LEGACY_IO_RESOURCE; + pcibios_resource_to_bus(dev, ®ion, &resource); + dev->resource[1].start = region.start; + dev->resource[1].end = region.end; + dev->resource[1].flags = resource.flags; } if ((progif & 4) == 0) { - dev->resource[2].start = 0x170; - dev->resource[2].end = 0x177; - dev->resource[2].flags = LEGACY_IO_RESOURCE; - dev->resource[3].start = 0x376; - dev->resource[3].end = 0x376; - dev->resource[3].flags = LEGACY_IO_RESOURCE; + struct resource resource = { + .start = 0x170, + .end = 0x177, + .flags = LEGACY_IO_RESOURCE, + }; + + pcibios_resource_to_bus(dev, ®ion, &resource); + dev->resource[2].start = region.start; + dev->resource[2].end = region.end; + dev->resource[2].flags = resource.flags; + resource.start = 0x376; + resource.end = 0x376; + resource.flags = LEGACY_IO_RESOURCE; + pcibios_resource_to_bus(dev, ®ion, &resource); + dev->resource[3].start = region.start; + dev->resource[3].end = region.end; + dev->resource[3].flags = resource.flags; } } break; diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c index 90adc62..716439e 100644 --- a/drivers/pci/proc.c +++ b/drivers/pci/proc.c @@ -60,7 +60,7 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp */ if (capable(CAP_SYS_ADMIN)) - size = dev->cfg_size; + size = dp->size; else if (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) size = 128; else @@ -129,11 +129,11 @@ proc_bus_pci_read(struct file *file, char __user *buf, size_t nbytes, loff_t *pp static ssize_t proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, loff_t *ppos) { - const struct inode *ino = file->f_path.dentry->d_inode; + struct inode *ino = file->f_path.dentry->d_inode; const struct proc_dir_entry *dp = PDE(ino); struct pci_dev *dev = dp->data; int pos = *ppos; - int size = dev->cfg_size; + int size = dp->size; int cnt; if (pos >= size) @@ -193,6 +193,7 @@ proc_bus_pci_write(struct file *file, const char __user *buf, size_t nbytes, lof } *ppos = pos; + i_size_write(ino, dp->size); return nbytes; } diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 50f2dd9..59d4da2 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -472,11 +472,9 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ */ static void __devinit quirk_vt82c586_acpi(struct pci_dev *dev) { - u8 rev; u32 region; - pci_read_config_byte(dev, PCI_CLASS_REVISION, &rev); - if (rev & 0x10) { + if (dev->revision & 0x10) { pci_read_config_dword(dev, 0x48, ®ion); region &= PCI_BASE_ADDRESS_IO_MASK; quirk_io_region(dev, region, 256, PCI_BRIDGE_RESOURCES, "vt82c586 ACPI"); @@ -629,12 +627,9 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk */ static void __init quirk_amd_8131_mmrbc(struct pci_dev *dev) { - unsigned char revid; - - pci_read_config_byte(dev, PCI_REVISION_ID, &revid); - if (dev->subordinate && revid <= 0x12) { + if (dev->subordinate && dev->revision <= 0x12) { printk(KERN_INFO "AMD8131 rev %x detected, disabling PCI-X " - "MMRBC\n", revid); + "MMRBC\n", dev->revision); dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MMRBC; } } @@ -930,38 +925,6 @@ static void __init quirk_eisa_bridge(struct pci_dev *dev) } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_eisa_bridge ); -/* - * On the MSI-K8T-Neo2Fir Board, the internal Soundcard is disabled - * when a PCI-Soundcard is added. The BIOS only gives Options - * "Disabled" and "AUTO". This Quirk Sets the corresponding - * Register-Value to enable the Soundcard. - * - * FIXME: Presently this quirk will run on anything that has an 8237 - * which isn't correct, we need to check DMI tables or something in - * order to make sure it only runs on the MSI-K8T-Neo2Fir. Because it - * runs everywhere at present we suppress the printk output in most - * irrelevant cases. - */ -static void k8t_sound_hostbridge(struct pci_dev *dev) -{ - unsigned char val; - - pci_read_config_byte(dev, 0x50, &val); - if (val == 0xc8) { - /* Assume it's probably a MSI-K8T-Neo2Fir */ - printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, attempting to turn soundcard ON\n"); - pci_write_config_byte(dev, 0x50, val & (~0x40)); - - /* Verify the Change for Status output */ - pci_read_config_byte(dev, 0x50, &val); - if (val & 0x40) - printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard still off\n"); - else - printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard on\n"); - } -} -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge); -DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge); /* * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 5e5191e..401e03c 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -472,7 +472,12 @@ void pci_bus_size_bridges(struct pci_bus *bus) break; case PCI_CLASS_BRIDGE_PCI: + /* don't size subtractive decoding (transparent) + * PCI-to-PCI bridges */ + if (bus->self->transparent) + break; pci_bridge_check_ranges(bus); + /* fall through */ default: pbus_size_io(bus); /* If the bridge supports prefetchable range, size it diff --git a/include/asm-x86/pci.h b/include/asm-x86/pci.h index a8cac8c..e883619 100644 --- a/include/asm-x86/pci.h +++ b/include/asm-x86/pci.h @@ -1,5 +1,95 @@ +#ifndef __x86_PCI_H +#define __x86_PCI_H + +#include <linux/mm.h> /* for struct page */ +#include <linux/types.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <asm/scatterlist.h> +#include <asm/io.h> + + +#ifdef __KERNEL__ + +struct pci_sysdata { + int domain; /* PCI domain */ + int node; /* NUMA node */ +#ifdef CONFIG_X86_64 + void* iommu; /* IOMMU private data */ +#endif +}; + +/* scan a bus after allocating a pci_sysdata for it */ +extern struct pci_bus *pci_scan_bus_with_sysdata(int busno); + +static inline int pci_domain_nr(struct pci_bus *bus) +{ + struct pci_sysdata *sd = bus->sysdata; + return sd->domain; +} + +static inline int pci_proc_domain(struct pci_bus *bus) +{ + return pci_domain_nr(bus); +} + + +/* Can be used to override the logic in pci_scan_bus for skipping + already-configured bus numbers - to be used for buggy BIOSes + or architectures with incomplete PCI setup by the loader */ + +#ifdef CONFIG_PCI +extern unsigned int pcibios_assign_all_busses(void); +#else +#define pcibios_assign_all_busses() 0 +#endif +#define pcibios_scan_all_fns(a, b) 0 + +extern unsigned long pci_mem_start; +#define PCIBIOS_MIN_IO 0x1000 +#define PCIBIOS_MIN_MEM (pci_mem_start) + +#define PCIBIOS_MIN_CARDBUS_IO 0x4000 + +void pcibios_config_init(void); +struct pci_bus * pcibios_scan_root(int bus); + +void pcibios_set_master(struct pci_dev *dev); +void pcibios_penalize_isa_irq(int irq, int active); +struct irq_routing_table *pcibios_get_irq_routing_table(void); +int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq); + + +#define HAVE_PCI_MMAP +extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, + enum pci_mmap_state mmap_state, int write_combine); + + +#ifdef CONFIG_PCI +static inline void pci_dma_burst_advice(struct pci_dev *pdev, + enum pci_dma_burst_strategy *strat, + unsigned long *strategy_parameter) +{ + *strat = PCI_DMA_BURST_INFINITY; + *strategy_parameter = ~0UL; +} +#endif + + +#endif /* __KERNEL__ */ + #ifdef CONFIG_X86_32 # include "pci_32.h" #else # include "pci_64.h" #endif + +/* implement the pci_ DMA API in terms of the generic device dma_ one */ +#include <asm-generic/pci-dma-compat.h> + +/* generic pci stuff */ +#include <asm-generic/pci.h> + + + +#endif diff --git a/include/asm-x86/pci_32.h b/include/asm-x86/pci_32.h index 4fcacc7..8c4c3a0 100644 --- a/include/asm-x86/pci_32.h +++ b/include/asm-x86/pci_32.h @@ -4,50 +4,11 @@ #ifdef __KERNEL__ -struct pci_sysdata { - int node; /* NUMA node */ -}; - -/* scan a bus after allocating a pci_sysdata for it */ -extern struct pci_bus *pci_scan_bus_with_sysdata(int busno); - -#include <linux/mm.h> /* for struct page */ - -/* Can be used to override the logic in pci_scan_bus for skipping - already-configured bus numbers - to be used for buggy BIOSes - or architectures with incomplete PCI setup by the loader */ - -#ifdef CONFIG_PCI -extern unsigned int pcibios_assign_all_busses(void); -#else -#define pcibios_assign_all_busses() 0 -#endif -#define pcibios_scan_all_fns(a, b) 0 - -extern unsigned long pci_mem_start; -#define PCIBIOS_MIN_IO 0x1000 -#define PCIBIOS_MIN_MEM (pci_mem_start) - -#define PCIBIOS_MIN_CARDBUS_IO 0x4000 - -void pcibios_config_init(void); -struct pci_bus * pcibios_scan_root(int bus); - -void pcibios_set_master(struct pci_dev *dev); -void pcibios_penalize_isa_irq(int irq, int active); -struct irq_routing_table *pcibios_get_irq_routing_table(void); -int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq); /* Dynamic DMA mapping stuff. * i386 has everything mapped statically. */ -#include <linux/types.h> -#include <linux/slab.h> -#include <asm/scatterlist.h> -#include <linux/string.h> -#include <asm/io.h> - struct pci_dev; /* The PCI address space does equal the physical memory @@ -64,27 +25,8 @@ struct pci_dev; #define pci_unmap_len(PTR, LEN_NAME) (0) #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) -#define HAVE_PCI_MMAP -extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, - enum pci_mmap_state mmap_state, int write_combine); - - -#ifdef CONFIG_PCI -static inline void pci_dma_burst_advice(struct pci_dev *pdev, - enum pci_dma_burst_strategy *strat, - unsigned long *strategy_parameter) -{ - *strat = PCI_DMA_BURST_INFINITY; - *strategy_parameter = ~0UL; -} -#endif #endif /* __KERNEL__ */ -/* implement the pci_ DMA API in terms of the generic device dma_ one */ -#include <asm-generic/pci-dma-compat.h> - -/* generic pci stuff */ -#include <asm-generic/pci.h> #endif /* __i386_PCI_H */ diff --git a/include/asm-x86/pci_64.h b/include/asm-x86/pci_64.h index 5da8cb0..9baa46d 100644 --- a/include/asm-x86/pci_64.h +++ b/include/asm-x86/pci_64.h @@ -1,16 +1,9 @@ #ifndef __x8664_PCI_H #define __x8664_PCI_H -#include <asm/io.h> #ifdef __KERNEL__ -struct pci_sysdata { - int node; /* NUMA node */ - void* iommu; /* IOMMU private data */ -}; - -extern struct pci_bus *pci_scan_bus_with_sysdata(int busno); #ifdef CONFIG_CALGARY_IOMMU static inline void* pci_iommu(struct pci_bus *bus) @@ -26,40 +19,11 @@ static inline void set_pci_iommu(struct pci_bus *bus, void *val) } #endif /* CONFIG_CALGARY_IOMMU */ -#include <linux/mm.h> /* for struct page */ - -/* Can be used to override the logic in pci_scan_bus for skipping - already-configured bus numbers - to be used for buggy BIOSes - or architectures with incomplete PCI setup by the loader */ - -#ifdef CONFIG_PCI -extern unsigned int pcibios_assign_all_busses(void); -#else -#define pcibios_assign_all_busses() 0 -#endif -#define pcibios_scan_all_fns(a, b) 0 - -extern unsigned long pci_mem_start; -#define PCIBIOS_MIN_IO 0x1000 -#define PCIBIOS_MIN_MEM (pci_mem_start) - -#define PCIBIOS_MIN_CARDBUS_IO 0x4000 -void pcibios_config_init(void); -struct pci_bus * pcibios_scan_root(int bus); extern int (*pci_config_read)(int seg, int bus, int dev, int fn, int reg, int len, u32 *value); extern int (*pci_config_write)(int seg, int bus, int dev, int fn, int reg, int len, u32 value); -void pcibios_set_master(struct pci_dev *dev); -void pcibios_penalize_isa_irq(int irq, int active); -struct irq_routing_table *pcibios_get_irq_routing_table(void); -int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq); -#include <linux/types.h> -#include <linux/slab.h> -#include <asm/scatterlist.h> -#include <linux/string.h> -#include <asm/page.h> extern void pci_iommu_alloc(void); extern int iommu_setup(char *opt); @@ -100,27 +64,7 @@ extern int iommu_setup(char *opt); #endif -#include <asm-generic/pci-dma-compat.h> - -#ifdef CONFIG_PCI -static inline void pci_dma_burst_advice(struct pci_dev *pdev, - enum pci_dma_burst_strategy *strat, - unsigned long *strategy_parameter) -{ - *strat = PCI_DMA_BURST_INFINITY; - *strategy_parameter = ~0UL; -} -#endif - -#define HAVE_PCI_MMAP -extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, - enum pci_mmap_state mmap_state, int write_combine); - #endif /* __KERNEL__ */ -/* generic pci stuff */ -#ifdef CONFIG_PCI -#include <asm-generic/pci.h> -#endif #endif /* __x8664_PCI_H */ diff --git a/include/linux/pci.h b/include/linux/pci.h index 038a0dc..768b933 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -685,13 +685,16 @@ extern void pci_unblock_user_cfg_access(struct pci_dev *dev); * a PCI domain is defined to be a set of PCI busses which share * configuration space. */ -#ifndef CONFIG_PCI_DOMAINS +#ifdef CONFIG_PCI_DOMAINS +extern int pci_domains_supported; +#else +enum { pci_domains_supported = 0 }; static inline int pci_domain_nr(struct pci_bus *bus) { return 0; } static inline int pci_proc_domain(struct pci_bus *bus) { return 0; } -#endif +#endif /* CONFIG_PCI_DOMAINS */ #else /* CONFIG_PCI is not enabled */ diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 584741b..87439ad 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -829,6 +829,9 @@ #define PCI_DEVICE_ID_UMC_UM8886BF 0x673a #define PCI_DEVICE_ID_UMC_UM8886A 0x886a +#define PCI_VENDOR_ID_PICOPOWER 0x1066 +#define PCI_DEVICE_ID_PICOPOWER_PT86C523 0x0002 +#define PCI_DEVICE_ID_PICOPOWER_PT86C523BBP 0x8002 #define PCI_VENDOR_ID_MYLEX 0x1069 #define PCI_DEVICE_ID_MYLEX_DAC960_P 0x0001 diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h index 423d592..c1914a8 100644 --- a/include/linux/pci_regs.h +++ b/include/linux/pci_regs.h @@ -147,7 +147,7 @@ #define PCI_BRIDGE_CONTROL 0x3e #define PCI_BRIDGE_CTL_PARITY 0x01 /* Enable parity detection on secondary interface */ #define PCI_BRIDGE_CTL_SERR 0x02 /* The same for SERR forwarding */ -#define PCI_BRIDGE_CTL_NO_ISA 0x04 /* Disable bridging of ISA ports */ +#define PCI_BRIDGE_CTL_ISA 0x04 /* Enable ISA mode */ #define PCI_BRIDGE_CTL_VGA 0x08 /* Forward VGA addresses */ #define PCI_BRIDGE_CTL_MASTER_ABORT 0x20 /* Report master aborts */ #define PCI_BRIDGE_CTL_BUS_RESET 0x40 /* Secondary bus reset */ @@ -202,8 +202,12 @@ #define PCI_CAP_ID_CHSWP 0x06 /* CompactPCI HotSwap */ #define PCI_CAP_ID_PCIX 0x07 /* PCI-X */ #define PCI_CAP_ID_HT 0x08 /* HyperTransport */ -#define PCI_CAP_ID_VNDR 0x09 /* Vendor specific capability */ +#define PCI_CAP_ID_VNDR 0x09 /* Vendor specific */ +#define PCI_CAP_ID_DBG 0x0A /* Debug port */ +#define PCI_CAP_ID_CCRC 0x0B /* CompactPCI Central Resource Control */ #define PCI_CAP_ID_SHPC 0x0C /* PCI Standard Hot-Plug Controller */ +#define PCI_CAP_ID_SSVID 0x0D /* Bridge subsystem vendor/device ID */ +#define PCI_CAP_ID_AGP3 0x0E /* AGP Target PCI-PCI bridge */ #define PCI_CAP_ID_EXP 0x10 /* PCI Express */ #define PCI_CAP_ID_MSIX 0x11 /* MSI-X */ #define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */ diff --git a/lib/swiotlb.c b/lib/swiotlb.c index a7381d5..30c1400 100644 --- a/lib/swiotlb.c +++ b/lib/swiotlb.c @@ -497,6 +497,7 @@ void swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr, dma_addr_t dma_handle) { + WARN_ON(irqs_disabled()); if (!(vaddr >= (void *)io_tlb_start && vaddr < (void *)io_tlb_end)) free_pages((unsigned long) vaddr, get_order(size)); |
