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[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>
This commit is contained in:
Hiroki Kaminaga 2005-12-05 10:55:00 +00:00 committed by Russell King
parent a0d95af5c2
commit 31a5539e57
1 changed files with 1 additions and 0 deletions
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1
include/asm-arm/memory.h
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@ -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