diff options
Diffstat (limited to 'arch/powerpc/kernel/head_8xx.S')
| -rw-r--r-- | arch/powerpc/kernel/head_8xx.S | 58 |
1 files changed, 28 insertions, 30 deletions
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index 3b67b9533c82..c203defe49a4 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -106,6 +106,23 @@ turn_on_mmu: mtspr SPRN_SRR0,r0 rfi /* enables MMU */ + +#ifdef CONFIG_PERF_EVENTS + .align 4 + + .globl itlb_miss_counter +itlb_miss_counter: + .space 4 + + .globl dtlb_miss_counter +dtlb_miss_counter: + .space 4 + + .globl instruction_counter +instruction_counter: + .space 4 +#endif + /* * Exception entry code. This code runs with address translation * turned off, i.e. using physical addresses. @@ -384,17 +401,16 @@ InstructionTLBMiss: #ifdef CONFIG_PERF_EVENTS patch_site 0f, patch__itlbmiss_perf -0: lis r10, (itlb_miss_counter - PAGE_OFFSET)@ha - lwz r11, (itlb_miss_counter - PAGE_OFFSET)@l(r10) - addi r11, r11, 1 - stw r11, (itlb_miss_counter - PAGE_OFFSET)@l(r10) -#endif +0: lwz r10, (itlb_miss_counter - PAGE_OFFSET)@l(0) + addi r10, r10, 1 + stw r10, (itlb_miss_counter - PAGE_OFFSET)@l(0) mfspr r10, SPRN_SPRG_SCRATCH0 mfspr r11, SPRN_SPRG_SCRATCH1 #if defined(ITLB_MISS_KERNEL) || defined(CONFIG_HUGETLB_PAGE) mfspr r12, SPRN_SPRG_SCRATCH2 #endif rfi +#endif #ifdef CONFIG_HUGETLB_PAGE 10: /* 8M pages */ @@ -509,15 +525,14 @@ DataStoreTLBMiss: #ifdef CONFIG_PERF_EVENTS patch_site 0f, patch__dtlbmiss_perf -0: lis r10, (dtlb_miss_counter - PAGE_OFFSET)@ha - lwz r11, (dtlb_miss_counter - PAGE_OFFSET)@l(r10) - addi r11, r11, 1 - stw r11, (dtlb_miss_counter - PAGE_OFFSET)@l(r10) -#endif +0: lwz r10, (dtlb_miss_counter - PAGE_OFFSET)@l(0) + addi r10, r10, 1 + stw r10, (dtlb_miss_counter - PAGE_OFFSET)@l(0) mfspr r10, SPRN_SPRG_SCRATCH0 mfspr r11, SPRN_SPRG_SCRATCH1 mfspr r12, SPRN_SPRG_SCRATCH2 rfi +#endif #ifdef CONFIG_HUGETLB_PAGE 10: /* 8M pages */ @@ -625,16 +640,13 @@ DataBreakpoint: . = 0x1d00 InstructionBreakpoint: mtspr SPRN_SPRG_SCRATCH0, r10 - mtspr SPRN_SPRG_SCRATCH1, r11 - lis r10, (instruction_counter - PAGE_OFFSET)@ha - lwz r11, (instruction_counter - PAGE_OFFSET)@l(r10) - addi r11, r11, -1 - stw r11, (instruction_counter - PAGE_OFFSET)@l(r10) + lwz r10, (instruction_counter - PAGE_OFFSET)@l(0) + addi r10, r10, -1 + stw r10, (instruction_counter - PAGE_OFFSET)@l(0) lis r10, 0xffff ori r10, r10, 0x01 mtspr SPRN_COUNTA, r10 mfspr r10, SPRN_SPRG_SCRATCH0 - mfspr r11, SPRN_SPRG_SCRATCH1 rfi #else EXCEPTION(0x1d00, Trap_1d, unknown_exception, EXC_XFER_EE) @@ -1065,17 +1077,3 @@ swapper_pg_dir: */ abatron_pteptrs: .space 8 - -#ifdef CONFIG_PERF_EVENTS - .globl itlb_miss_counter -itlb_miss_counter: - .space 4 - - .globl dtlb_miss_counter -dtlb_miss_counter: - .space 4 - - .globl instruction_counter -instruction_counter: - .space 4 -#endif |