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sparc32: Fix page_to_phys().

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It doesn't account for phys_base like it should, fix by using
page_to_pfn().

While we're here, make virt_to_page() use pfn_to_page() as well, so we
consistently use the asm/memory-model.h abstractions instead of
open-coding memory model assumptions.

Tested-by: Kristoffer Glembo <kristoffer@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2010-01-14 03:14:53 -08:00
parent af2e7cc270
commit 8654164f54
2 changed files with 2 additions and 2 deletions
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2
arch/sparc/include/asm/io_32.h
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@ -8,7 +8,7 @@
#include <asm/page.h> /* IO address mapping routines need this */
#include <asm/system.h>
#define page_to_phys(page) (((page) - mem_map) << PAGE_SHIFT)
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
static inline u32 flip_dword (u32 l)
{

2
arch/sparc/include/asm/page_32.h
View file

@ -143,7 +143,7 @@ extern unsigned long pfn_base;
#define phys_to_virt __va
#define ARCH_PFN_OFFSET (pfn_base)
#define virt_to_page(kaddr) (mem_map + ((((unsigned long)(kaddr)-PAGE_OFFSET)>>PAGE_SHIFT)))
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
#define pfn_valid(pfn) (((pfn) >= (pfn_base)) && (((pfn)-(pfn_base)) < max_mapnr))
#define virt_addr_valid(kaddr) ((((unsigned long)(kaddr)-PAGE_OFFSET)>>PAGE_SHIFT) < max_mapnr)