2 files changed, 31 insertions, 9 deletions

diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index a15f94072a6f..cc9d65388e62 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -60,15 +60,18 @@ resource_show(struct device * dev, struct device_attribute *attr, char * buf)
         char * str = buf;
         int i;
         int max = 7;
+        u64 start, end;
 
         if (pci_dev->subordinate)
                 max = DEVICE_COUNT_RESOURCE;
 
         for (i = 0; i < max; i++) {
-                str += sprintf(str,"0x%016lx 0x%016lx 0x%016lx\n",
-                               pci_resource_start(pci_dev,i),
-                               pci_resource_end(pci_dev,i),
-                               pci_resource_flags(pci_dev,i));
+                struct resource *res =  &pci_dev->resource[i];
+                pci_resource_to_user(pci_dev, i, res, &start, &end);
+                str += sprintf(str,"0x%016llx 0x%016llx 0x%016llx\n",
+                               (unsigned long long)start,
+                               (unsigned long long)end,
+                               (unsigned long long)res->flags);
         }
         return (str - buf);
 }
@@ -313,8 +316,21 @@ pci_mmap_resource(struct kobject *kobj, struct bin_attribute *attr,
                                                        struct device, kobj));
         struct resource *res = (struct resource *)attr->private;
         enum pci_mmap_state mmap_type;
+        u64 start, end;
+        int i;
 
-        vma->vm_pgoff += res->start >> PAGE_SHIFT;
+        for (i = 0; i < PCI_ROM_RESOURCE; i++)
+                if (res == &pdev->resource[i])
+                        break;
+        if (i >= PCI_ROM_RESOURCE)
+                return -ENODEV;
+
+        /* pci_mmap_page_range() expects the same kind of entry as coming
+         * from /proc/bus/pci/ which is a "user visible" value. If this is
+         * different from the resource itself, arch will do necessary fixup.
+         */
+        pci_resource_to_user(pdev, i, res, &start, &end);
+        vma->vm_pgoff += start >> PAGE_SHIFT;
         mmap_type = res->flags & IORESOURCE_MEM ? pci_mmap_mem : pci_mmap_io;
 
         return pci_mmap_page_range(pdev, vma, mmap_type, 0);
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index e68bbfb1e7c3..7988fc8df3fd 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -355,14 +355,20 @@ static int show_device(struct seq_file *m, void *v)
                         dev->device,
                         dev->irq);
         /* Here should be 7 and not PCI_NUM_RESOURCES as we need to preserve compatibility */
-        for(i=0; i<7; i++)
+        for (i=0; i<7; i++) {
+                u64 start, end;
+                pci_resource_to_user(dev, i, &dev->resource[i], &start, &end);
                 seq_printf(m, LONG_FORMAT,
-                        dev->resource[i].start |
+                        ((unsigned long)start) |
                         (dev->resource[i].flags & PCI_REGION_FLAG_MASK));
-        for(i=0; i<7; i++)
+        }
+        for (i=0; i<7; i++) {
+                u64 start, end;
+                pci_resource_to_user(dev, i, &dev->resource[i], &start, &end);
                 seq_printf(m, LONG_FORMAT,
                         dev->resource[i].start < dev->resource[i].end ?
-                        dev->resource[i].end - dev->resource[i].start + 1 : 0);
+                        (unsigned long)(end - start) + 1 : 0);
+        }
         seq_putc(m, '\t');
         if (drv)
                 seq_printf(m, "%s", drv->name);