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[MIPS] page.h: remove __pa() usages.

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__pa() was used by virt_to_page() and virt_addr_valid(). These
latter are used when kernel is initialised so __pa() is not
appropriate, we use virt_to_phys() instead.

Futhermore __pa() is going to take care of CKSEG0/XKPHYS
address mix for 64 bit kernels. This makes __pa() more complex
than virt_to_phys() and this extra work is not needed by
virt_to_page() and virt_addr_valid().

Eventually it consolidates virt_to_phys() prototype by making
its argument 'const'. this avoids some warnings that was due
to some virt_to_page() usages which pass const pointer.

Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Franck Bui-Huu
2006-10-19 13:19:59 +02:00
committed by Ralf Baechle
parent 0215ffb08c
commit 99e3b942c6
4 changed files with 10 additions and 8 deletions
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6
include/asm-mips/page.h
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@ -34,7 +34,9 @@
#ifndef __ASSEMBLY__
#include <linux/pfn.h>
#include <asm/cpu-features.h>
#include <asm/io.h>
extern void clear_page(void * page);
extern void copy_page(void * to, void * from);
@ -160,8 +162,8 @@ typedef struct { unsigned long pgprot; } pgprot_t;
#endif
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
#define virt_to_page(kaddr) pfn_to_page(PFN_DOWN(virt_to_phys(kaddr)))
#define virt_addr_valid(kaddr) pfn_valid(PFN_DOWN(virt_to_phys(kaddr)))
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)