diff options
| 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 /arch/powerpc/mm/init_32.c | |
| parent | [POWERPC] Fix 32-bit mm operations when not using BATs (diff) | |
| download | linux-dev-88df6e90fa9782dbf44d936e44649afe271e4790.tar.xz linux-dev-88df6e90fa9782dbf44d936e44649afe271e4790.zip | |
[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 'arch/powerpc/mm/init_32.c')
| -rw-r--r-- | arch/powerpc/mm/init_32.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c index 0e53ca8f02fb..5fce6ccecb8d 100644 --- a/arch/powerpc/mm/init_32.c +++ b/arch/powerpc/mm/init_32.c @@ -115,6 +115,10 @@ void MMU_setup(void) if (strstr(cmd_line, "noltlbs")) { __map_without_ltlbs = 1; } +#ifdef CONFIG_DEBUG_PAGEALLOC + __map_without_bats = 1; + __map_without_ltlbs = 1; +#endif } /* |