[ARM] 3016/1: Replace map_desc.physical with map_desc.pfn

Patch from Deepak Saxena

Convert map_desc.physical to map_desc.pfn. This allows us to add
support for 36-bit addressed physical devices in the static maps
without having to resort to u64 variables.

Signed-off-by: Deepak Saxena <dsaxena@plexity.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 4 insertions, 1 deletions

diff --git a/include/asm-arm/mach/map.h b/include/asm-arm/mach/map.h
index 9ac47cf8d2e4..0619522bd926 100644
--- a/include/asm-arm/mach/map.h
+++ b/include/asm-arm/mach/map.h
@@ -11,7 +11,7 @@
  */
 struct map_desc {
         unsigned long virtual;
-        unsigned long physical;
+        unsigned long pfn;
         unsigned long length;
         unsigned int type;
 };
@@ -27,6 +27,9 @@ struct meminfo;
 #define MT_ROM                  6
 #define MT_IXP2000_DEVICE       7
 
+#define __phys_to_pfn(paddr)    (paddr >> PAGE_SHIFT)
+#define __pfn_to_phys(pfn)      (pfn << PAGE_SHIFT)
+
 extern void create_memmap_holes(struct meminfo *);
 extern void memtable_init(struct meminfo *);
 extern void iotable_init(struct map_desc *, int);