diff options
| author | keith mannthey <kmannth@us.ibm.com> | 2006-09-26 01:24:39 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 02:38:35 +0200 |
| commit | 24fd425edd53ea580cad917e825c1f6715e9b939 (patch) | |
| tree | bcd6d5394434edb960fe71ebc9173324980cba35 /arch/i386/mm | |
| parent | [PATCH] rtc: lockdep fix/workaround (diff) | |
| download | linux-24fd425edd53ea580cad917e825c1f6715e9b939.tar.xz linux-24fd425edd53ea580cad917e825c1f6715e9b939.zip | |
[PATCH] i386 bootioremap / kexec fix
With CONFIG_PHYSICAL_START set to a non default values the i386
boot_ioremap code calculated its pte index wrong and users of boot_ioremap
have their areas incorrectly mapped (for me SRAT table not mapped during
early boot). This patch removes the addr < BOOT_PTE_PTRS constraint.
[ Keith says this is applicable to 2.6.16 and 2.6.17 as well ]
Signed-off-by: Keith Mannthey<kmannth@us.ibm.com>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: <stable@kernel.org>
Cc: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386/mm')
| -rw-r--r-- | arch/i386/mm/boot_ioremap.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/i386/mm/boot_ioremap.c b/arch/i386/mm/boot_ioremap.c index 5d44f4f5ff59..4de11f508c3a 100644 --- a/arch/i386/mm/boot_ioremap.c +++ b/arch/i386/mm/boot_ioremap.c @@ -29,8 +29,11 @@ */ #define BOOT_PTE_PTRS (PTRS_PER_PTE*2) -#define boot_pte_index(address) \ - (((address) >> PAGE_SHIFT) & (BOOT_PTE_PTRS - 1)) + +static unsigned long boot_pte_index(unsigned long vaddr) +{ + return __pa(vaddr) >> PAGE_SHIFT; +} static inline boot_pte_t* boot_vaddr_to_pte(void *address) { |