Merge tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

[deliverable/linux.git] / arch / sparc / kernel / pci.c

diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index c2b202d763a16ae74d1d150ed6e7dd940341d7dd..9c1878f4fa9f31a69f0849252ef160550689fcd5 100644 (file)
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -986,16 +986,18 @@ void pci_resource_to_user(const struct pci_dev *pdev, int bar,
                          const struct resource *rp, resource_size_t *start,
                          resource_size_t *end)
 {
-       struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
-       unsigned long offset;
-
-       if (rp->flags & IORESOURCE_IO)
-               offset = pbm->io_space.start;
-       else
-               offset = pbm->mem_space.start;
+       struct pci_bus_region region;
 
-       *start = rp->start - offset;
-       *end = rp->end - offset;
+       /*
+        * "User" addresses are shown in /sys/devices/pci.../.../resource
+        * and /proc/bus/pci/devices and used as mmap offsets for
+        * /proc/bus/pci/BB/DD.F files (see proc_bus_pci_mmap()).
+        *
+        * On sparc, these are PCI bus addresses, i.e., raw BAR values.
+        */
+       pcibios_resource_to_bus(pdev->bus, &region, (struct resource *) rp);
+       *start = region.start;
+       *end = region.end;
 }
 
 void pcibios_set_master(struct pci_dev *dev)