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[POWERPC] DEBUG_PAGEALLOC for 32-bit

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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>
This commit is contained in:
Benjamin Herrenschmidt
2007-04-12 15:30:22 +10:00
committed by Paul Mackerras
parent ee4f2ea486
commit 88df6e90fa
5 changed files with 74 additions and 1 deletions
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6
include/asm-powerpc/cacheflush.h
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@ -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 */