diff options
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/hash_utils_64.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/mm/slb.c | 3 | ||||
| -rw-r--r-- | arch/powerpc/mm/slb_low.S | 5 |
3 files changed, 7 insertions, 2 deletions
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index f09730bf3a3..cbbd8b0bc8f 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; diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c index 27922dff8b9..3cf0802cd2b 100644 --- a/arch/powerpc/mm/slb.c +++ b/arch/powerpc/mm/slb.c @@ -256,6 +256,7 @@ void slb_initialize(void) static int slb_encoding_inited; extern unsigned int *slb_miss_kernel_load_linear; extern unsigned int *slb_miss_kernel_load_io; + extern unsigned int *slb_compare_rr_to_size; /* Prepare our SLB miss handler based on our page size */ linear_llp = mmu_psize_defs[mmu_linear_psize].sllp; @@ -269,6 +270,8 @@ void slb_initialize(void) SLB_VSID_KERNEL | linear_llp); patch_slb_encoding(slb_miss_kernel_load_io, SLB_VSID_KERNEL | io_llp); + patch_slb_encoding(slb_compare_rr_to_size, + mmu_slb_size); DBG("SLB: linear LLP = %04x\n", linear_llp); DBG("SLB: io LLP = %04x\n", io_llp); diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S index 1328a81a84a..657f6b37e9d 100644 --- a/arch/powerpc/mm/slb_low.S +++ b/arch/powerpc/mm/slb_low.S @@ -227,8 +227,9 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES) 7: ld r10,PACASTABRR(r13) addi r10,r10,1 - /* use a cpu feature mask if we ever change our slb size */ - cmpldi r10,SLB_NUM_ENTRIES + /* This gets soft patched on boot. */ +_GLOBAL(slb_compare_rr_to_size) + cmpldi r10,0 blt+ 4f li r10,SLB_NUM_BOLTED |