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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2007-04-12 15:30:22 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-04-13 04:09:39 +1000 |
| commit | 88df6e90fa9782dbf44d936e44649afe271e4790 (patch) | |
| tree | d0f4c46731e35e96a381dd3e3138f0276741ca57 /include/asm-powerpc | |
| parent | ee4f2ea48674b6c9d91bc854edc51a3e6a7168c4 (diff) | |
| download | op-kernel-dev-88df6e90fa9782dbf44d936e44649afe271e4790.zip op-kernel-dev-88df6e90fa9782dbf44d936e44649afe271e4790.tar.gz | |
[POWERPC] DEBUG_PAGEALLOC for 32-bit
Here's an implementation of DEBUG_PAGEALLOC for ppc32. It disables BAT
mapping and is only tested with Hash table based processor though it
shouldn't be too hard to adapt it to others.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/Kconfig.debug | 9 ++++++
arch/powerpc/mm/init_32.c | 4 +++
arch/powerpc/mm/pgtable_32.c | 52 +++++++++++++++++++++++++++++++++++++++
arch/powerpc/mm/ppc_mmu_32.c | 4 ++-
include/asm-powerpc/cacheflush.h | 6 ++++
5 files changed, 74 insertions(+), 1 deletion(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc')
| -rw-r--r-- | include/asm-powerpc/cacheflush.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-powerpc/cacheflush.h b/include/asm-powerpc/cacheflush.h index 08e93e7..ba667a383 100644 --- a/include/asm-powerpc/cacheflush.h +++ b/include/asm-powerpc/cacheflush.h @@ -64,6 +64,12 @@ extern void flush_dcache_phys_range(unsigned long start, unsigned long stop); memcpy(dst, src, len) + +#ifdef CONFIG_DEBUG_PAGEALLOC +/* internal debugging function */ +void kernel_map_pages(struct page *page, int numpages, int enable); +#endif + #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_CACHEFLUSH_H */ |
