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| author | Michael Neuling <mikey@neuling.org> | 2007-12-06 17:24:48 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-12-11 13:45:56 +1100 |
| commit | 584f8b71a2e8abdaeb4b6f4fddaf542b61392453 (patch) | |
| tree | c14f26334e3a3524046f0790f96564a4a4f22d92 /arch/powerpc/mm/hash_utils_64.c | |
| parent | 44ef339073f67d4abcc62ae52a5fbc069d7a4d29 (diff) | |
| download | blackbird-op-linux-584f8b71a2e8abdaeb4b6f4fddaf542b61392453.tar.gz blackbird-op-linux-584f8b71a2e8abdaeb4b6f4fddaf542b61392453.zip | |
[POWERPC] Use SLB size from the device tree
Currently we hardwire the number of SLBs to 64, but PAPR says we
should use the ibm,slb-size property to obtain the number of SLB
entries. This uses this property instead of assuming 64. If no
property is found, we assume 64 entries as before.
This soft patches the SLB handler, so it shouldn't change performance
at all.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/mm/hash_utils_64.c')
| -rw-r--r-- | arch/powerpc/mm/hash_utils_64.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index f09730bf3a33..cbbd8b0bc8f4 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -96,6 +96,7 @@ int mmu_vmalloc_psize = MMU_PAGE_4K; int mmu_io_psize = MMU_PAGE_4K; int mmu_kernel_ssize = MMU_SEGSIZE_256M; int mmu_highuser_ssize = MMU_SEGSIZE_256M; +u16 mmu_slb_size = 64; #ifdef CONFIG_HUGETLB_PAGE int mmu_huge_psize = MMU_PAGE_16M; unsigned int HPAGE_SHIFT; |
