diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/hotplug/cpqphp_core.c | 7 | ||||
| -rw-r--r-- | drivers/pci/intel-iommu.c | 14 | ||||
| -rw-r--r-- | drivers/pci/pci-sysfs.c | 37 | ||||
| -rw-r--r-- | drivers/pci/pci.c | 1 | ||||
| -rw-r--r-- | drivers/pci/pcie/pme/pcie_pme.c | 19 | ||||
| -rw-r--r-- | drivers/pci/setup-res.c | 10 | ||||
| -rw-r--r-- | drivers/pci/slot.c | 48 |
7 files changed, 37 insertions, 99 deletions
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 diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 796828f..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; @@ -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: @@ -3603,7 +3604,8 @@ 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--; } @@ -3719,6 +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); 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/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/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); 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; } 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; |
