diff options
author | Steven King <sfking@fdwdc.com> | 2014-06-11 23:01:10 -0400 |
---|---|---|
committer | Greg Ungerer <gerg@uclinux.org> | 2014-06-20 01:11:20 -0400 |
commit | 817f72d680828bb848099adf69fd35c14ff2e182 (patch) | |
tree | 5fb8fb3d15a11caaa28f499a31ba06869e577057 /arch/m68k/include/asm | |
parent | 7171511eaec5bf23fb06078f59784a3a0626b38f (diff) |
m68knommu: Correct page_to_phys when PAGE_OFFSET is non-zero.
The definition of page_to_phys for nommu produces an incorrect value when
PAGE_OFFSET is non-zero. The nommu version of page_to_pfn works correctly
for non-zero PAGE_OFFSET, so use that instead.
Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Diffstat (limited to 'arch/m68k/include/asm')
-rw-r--r-- | arch/m68k/include/asm/virtconvert.h | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/m68k/include/asm/virtconvert.h b/arch/m68k/include/asm/virtconvert.h index f35229b8651d..b8a82fb1cef8 100644 --- a/arch/m68k/include/asm/virtconvert.h +++ b/arch/m68k/include/asm/virtconvert.h | |||
@@ -26,16 +26,12 @@ static inline void *phys_to_virt(unsigned long address) | |||
26 | } | 26 | } |
27 | 27 | ||
28 | /* Permanent address of a page. */ | 28 | /* Permanent address of a page. */ |
29 | #ifdef CONFIG_MMU | 29 | #if defined(CONFIG_MMU) && defined(CONFIG_SINGLE_MEMORY_CHUNK) |
30 | #ifdef CONFIG_SINGLE_MEMORY_CHUNK | ||
31 | #define page_to_phys(page) \ | 30 | #define page_to_phys(page) \ |
32 | __pa(PAGE_OFFSET + (((page) - pg_data_map[0].node_mem_map) << PAGE_SHIFT)) | 31 | __pa(PAGE_OFFSET + (((page) - pg_data_map[0].node_mem_map) << PAGE_SHIFT)) |
33 | #else | 32 | #else |
34 | #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) | 33 | #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) |
35 | #endif | 34 | #endif |
36 | #else | ||
37 | #define page_to_phys(page) (((page) - mem_map) << PAGE_SHIFT) | ||
38 | #endif | ||
39 | 35 | ||
40 | /* | 36 | /* |
41 | * IO bus memory addresses are 1:1 with the physical address, | 37 | * IO bus memory addresses are 1:1 with the physical address, |