[ARM] 3194/1: add pfn_to_kaddr macro for ARM take2

Patch from Hiroki Kaminaga

This patch defines a new macro: pfn_to_kaddr(pfn).
Same macro is already defined on other arch, such as i386.

Signed-off-by: Hiroki Kaminaga <kaminaga@sm.sony.co.jp>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/asm-arm/memory.h b/include/asm-arm/memory.h
index a547ee598c6c..3e572364ee73 100644
--- a/include/asm-arm/memory.h
+++ b/include/asm-arm/memory.h
@@ -122,6 +122,7 @@ static inline void *phys_to_virt(unsigned long x)
  */
 #define __pa(x)                 __virt_to_phys((unsigned long)(x))
 #define __va(x)                 ((void *)__phys_to_virt((unsigned long)(x)))
+#define pfn_to_kaddr(pfn)       __va((pfn) << PAGE_SHIFT)
 
 /*
  * Virtual <-> DMA view memory address translations