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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 /arch/powerpc/mm/ppc_mmu_32.c | |
| parent | ee4f2ea48674b6c9d91bc854edc51a3e6a7168c4 (diff) | |
| download | linux-stable-88df6e90fa9782dbf44d936e44649afe271e4790.tar.gz linux-stable-88df6e90fa9782dbf44d936e44649afe271e4790.tar.bz2 linux-stable-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/ppc_mmu_32.c')
| -rw-r--r-- | arch/powerpc/mm/ppc_mmu_32.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/mm/ppc_mmu_32.c b/arch/powerpc/mm/ppc_mmu_32.c index 7cceb2c44cb9..05066674a7a0 100644 --- a/arch/powerpc/mm/ppc_mmu_32.c +++ b/arch/powerpc/mm/ppc_mmu_32.c @@ -85,8 +85,10 @@ unsigned long __init mmu_mapin_ram(void) unsigned long max_size = (256<<20); unsigned long align; - if (__map_without_bats) + if (__map_without_bats) { + printk(KERN_DEBUG "RAM mapped without BATs\n"); return 0; + } /* Set up BAT2 and if necessary BAT3 to cover RAM. */ |