4 files changed, 44 insertions, 29 deletions

diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 301c68fab03b..1fd8bb765702 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -1905,32 +1905,31 @@ get_valid_domain_for_dev(struct pci_dev *pdev)
         return domain;
 }
 
-static dma_addr_t intel_map_single(struct device *hwdev, void *addr,
-        size_t size, int dir)
+static dma_addr_t
+intel_map_single(struct device *hwdev, phys_addr_t paddr, size_t size, int dir)
 {
         struct pci_dev *pdev = to_pci_dev(hwdev);
-        int ret;
         struct dmar_domain *domain;
-        unsigned long start_addr;
+        unsigned long start_paddr;
         struct iova *iova;
         int prot = 0;
+        int ret;
 
         BUG_ON(dir == DMA_NONE);
         if (pdev->dev.archdata.iommu == DUMMY_DEVICE_DOMAIN_INFO)
-                return virt_to_bus(addr);
+                return paddr;
 
         domain = get_valid_domain_for_dev(pdev);
         if (!domain)
                 return 0;
 
-        addr = (void *)virt_to_phys(addr);
-        size = aligned_size((u64)addr, size);
+        size = aligned_size((u64)paddr, size);
 
         iova = __intel_alloc_iova(hwdev, domain, size);
         if (!iova)
                 goto error;
 
-        start_addr = iova->pfn_lo << PAGE_SHIFT_4K;
+        start_paddr = iova->pfn_lo << PAGE_SHIFT_4K;
 
         /*
          * Check if DMAR supports zero-length reads on write only
@@ -1942,33 +1941,33 @@ static dma_addr_t intel_map_single(struct device *hwdev, void *addr,
         if (dir == DMA_FROM_DEVICE || dir == DMA_BIDIRECTIONAL)
                 prot |= DMA_PTE_WRITE;
         /*
-         * addr - (addr + size) might be partial page, we should map the whole
+         * paddr - (paddr + size) might be partial page, we should map the whole
          * page.  Note: if two part of one page are separately mapped, we
-         * might have two guest_addr mapping to the same host addr, but this
+         * might have two guest_addr mapping to the same host paddr, but this
          * is not a big problem
          */
-        ret = domain_page_mapping(domain, start_addr,
-                ((u64)addr) & PAGE_MASK_4K, size, prot);
+        ret = domain_page_mapping(domain, start_paddr,
+                ((u64)paddr) & PAGE_MASK_4K, size, prot);
         if (ret)
                 goto error;
 
         pr_debug("Device %s request: %lx@%llx mapping: %lx@%llx, dir %d\n",
-                pci_name(pdev), size, (u64)addr,
-                size, (u64)start_addr, dir);
+                pci_name(pdev), size, (u64)paddr,
+                size, (u64)start_paddr, dir);
 
         /* it's a non-present to present mapping */
         ret = iommu_flush_iotlb_psi(domain->iommu, domain->id,
-                        start_addr, size >> PAGE_SHIFT_4K, 1);
+                        start_paddr, size >> PAGE_SHIFT_4K, 1);
         if (ret)
                 iommu_flush_write_buffer(domain->iommu);
 
-        return (start_addr + ((u64)addr & (~PAGE_MASK_4K)));
+        return (start_paddr + ((u64)paddr & (~PAGE_MASK_4K)));
 
 error:
         if (iova)
                 __free_iova(&domain->iovad, iova);
         printk(KERN_ERR"Device %s request: %lx@%llx dir %d --- failed\n",
-                pci_name(pdev), size, (u64)addr, dir);
+                pci_name(pdev), size, (u64)paddr, dir);
         return 0;
 }
 
@@ -2082,7 +2081,7 @@ static void * intel_alloc_coherent(struct device *hwdev, size_t size,
                 return NULL;
         memset(vaddr, 0, size);
 
-        *dma_handle = intel_map_single(hwdev, vaddr, size, DMA_BIDIRECTIONAL);
+        *dma_handle = intel_map_single(hwdev, virt_to_bus(vaddr), size, DMA_BIDIRECTIONAL);
         if (*dma_handle)
                 return vaddr;
         free_pages((unsigned long)vaddr, order);
diff --git a/drivers/pci/pcie/aer/aerdrv_acpi.c b/drivers/pci/pcie/aer/aerdrv_acpi.c
index 96ac54072f6f..d39a78dbd026 100644
--- a/drivers/pci/pcie/aer/aerdrv_acpi.c
+++ b/drivers/pci/pcie/aer/aerdrv_acpi.c
@@ -31,7 +31,7 @@ int aer_osc_setup(struct pcie_device *pciedev)
 {
         acpi_status status = AE_NOT_FOUND;
         struct pci_dev *pdev = pciedev->port;
-        acpi_handle handle = 0;
+        acpi_handle handle = NULL;
 
         if (acpi_pci_disabled)
                 return -1;
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index f991359f0c36..4a55bf380957 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -842,11 +842,14 @@ static void set_pcie_port_type(struct pci_dev *pdev)
  * reading the dword at 0x100 which must either be 0 or a valid extended
  * capability header.
  */
-int pci_cfg_space_size(struct pci_dev *dev)
+int pci_cfg_space_size_ext(struct pci_dev *dev, unsigned check_exp_pcix)
 {
         int pos;
         u32 status;
 
+        if (!check_exp_pcix)
+                goto skip;
+
         pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
         if (!pos) {
                 pos = pci_find_capability(dev, PCI_CAP_ID_PCIX);
@@ -858,6 +861,7 @@ int pci_cfg_space_size(struct pci_dev *dev)
                         goto fail;
         }
 
+ skip:
         if (pci_read_config_dword(dev, 256, &status) != PCIBIOS_SUCCESSFUL)
                 goto fail;
         if (status == 0xffffffff)
@@ -869,6 +873,11 @@ int pci_cfg_space_size(struct pci_dev *dev)
         return PCI_CFG_SPACE_SIZE;
 }
 
+int pci_cfg_space_size(struct pci_dev *dev)
+{
+        return pci_cfg_space_size_ext(dev, 1);
+}
+
 static void pci_release_bus_bridge_dev(struct device *dev)
 {
         kfree(dev);
@@ -964,7 +973,6 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
         dev->dev.release = pci_release_dev;
         pci_dev_get(dev);
 
-        set_dev_node(&dev->dev, pcibus_to_node(bus));
         dev->dev.dma_mask = &dev->dma_mask;
         dev->dev.dma_parms = &dev->dma_parms;
         dev->dev.coherent_dma_mask = 0xffffffffull;
@@ -1080,6 +1088,10 @@ unsigned int __devinit pci_scan_child_bus(struct pci_bus *bus)
         return max;
 }
 
+void __attribute__((weak)) set_pci_bus_resources_arch_default(struct pci_bus *b)
+{
+}
+
 struct pci_bus * pci_create_bus(struct device *parent,
                 int bus, struct pci_ops *ops, void *sysdata)
 {
@@ -1119,6 +1131,9 @@ struct pci_bus * pci_create_bus(struct device *parent,
                 goto dev_reg_err;
         b->bridge = get_device(dev);
 
+        if (!parent)
+                set_dev_node(b->bridge, pcibus_to_node(b));
+
         b->dev.class = &pcibus_class;
         b->dev.parent = b->bridge;
         sprintf(b->dev.bus_id, "%04x:%02x", pci_domain_nr(b), bus);
@@ -1136,6 +1151,8 @@ struct pci_bus * pci_create_bus(struct device *parent,
         b->resource[0] = &ioport_resource;
         b->resource[1] = &iomem_resource;
 
+        set_pci_bus_resources_arch_default(b);
+
         return b;
 
 dev_create_file_err:
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index ef18fcd641e2..963a97642ae9 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -293,6 +293,7 @@ static int proc_bus_pci_release(struct inode *inode, struct file *file)
 #endif /* HAVE_PCI_MMAP */
 
 static const struct file_operations proc_bus_pci_operations = {
+        .owner          = THIS_MODULE,
         .llseek         = proc_bus_pci_lseek,
         .read           = proc_bus_pci_read,
         .write          = proc_bus_pci_write,
@@ -406,11 +407,10 @@ int pci_proc_attach_device(struct pci_dev *dev)
         }
 
         sprintf(name, "%02x.%x", PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
-        e = create_proc_entry(name, S_IFREG | S_IRUGO | S_IWUSR, bus->procdir);
+        e = proc_create_data(name, S_IFREG | S_IRUGO | S_IWUSR, bus->procdir,
+                             &proc_bus_pci_operations, dev);
         if (!e)
                 return -ENOMEM;
-        e->proc_fops = &proc_bus_pci_operations;
-        e->data = dev;
         e->size = dev->cfg_size;
         dev->procent = e;
 
@@ -462,6 +462,7 @@ static int proc_bus_pci_dev_open(struct inode *inode, struct file *file)
         return seq_open(file, &proc_bus_pci_devices_op);
 }
 static const struct file_operations proc_bus_pci_dev_operations = {
+        .owner          = THIS_MODULE,
         .open           = proc_bus_pci_dev_open,
         .read           = seq_read,
         .llseek         = seq_lseek,
@@ -470,12 +471,10 @@ static const struct file_operations proc_bus_pci_dev_operations = {
 
 static int __init pci_proc_init(void)
 {
-        struct proc_dir_entry *entry;
         struct pci_dev *dev = NULL;
-        proc_bus_pci_dir = proc_mkdir("pci", proc_bus);
-        entry = create_proc_entry("devices", 0, proc_bus_pci_dir);
-        if (entry)
-                entry->proc_fops = &proc_bus_pci_dev_operations;
+        proc_bus_pci_dir = proc_mkdir("bus/pci", NULL);
+        proc_create("devices", 0, proc_bus_pci_dir,
+                    &proc_bus_pci_dev_operations);
         proc_initialized = 1;
         while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
                 pci_proc_attach_device(dev);