PCI: Add ability to mmap legacy_io on some platforms

This adds the ability to mmap legacy IO space to the legacy_io files
in sysfs on platforms that support it. This will allow to clean up
X to use this instead of /dev/mem for legacy IO accesses such as
those performed by Int10.

While at it I moved pci_create/remove_legacy_files() to pci-sysfs.c
where I think they belong, thus making more things statis in there
and cleaned up some spurrious prototypes in the ia64 pci.h file

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

1 files changed, 2 insertions, 10 deletions

diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index 0149097b736d..ce342fb74246 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -95,16 +95,8 @@ extern int pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma,
                                 enum pci_mmap_state mmap_state, int write_combine);
 #define HAVE_PCI_LEGACY
 extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
-                                      struct vm_area_struct *vma);
-extern ssize_t pci_read_legacy_io(struct kobject *kobj,
-                                  struct bin_attribute *bin_attr,
-                                  char *buf, loff_t off, size_t count);
-extern ssize_t pci_write_legacy_io(struct kobject *kobj,
-                                   struct bin_attribute *bin_attr,
-                                   char *buf, loff_t off, size_t count);
-extern int pci_mmap_legacy_mem(struct kobject *kobj,
-                               struct bin_attribute *attr,
-                               struct vm_area_struct *vma);
+                                      struct vm_area_struct *vma,
+                                      enum pci_mmap_state mmap_state);
 
 #define pci_get_legacy_mem platform_pci_get_legacy_mem
 #define pci_legacy_read platform_pci_legacy_read