diff options
Diffstat (limited to 'arch/mips/mm')
| -rw-r--r-- | arch/mips/mm/c-r4k.c | 6 | ||||
| -rw-r--r-- | arch/mips/mm/page.c | 10 | ||||
| -rw-r--r-- | arch/mips/mm/sc-mips.c | 6 | ||||
| -rw-r--r-- | arch/mips/mm/tlbex.c | 32 |
4 files changed, 33 insertions, 21 deletions
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index b5aedb2ea914..96f4d5a6c21c 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -1249,10 +1249,8 @@ static void __cpuinit setup_scache(void) return; default: - if (c->isa_level == MIPS_CPU_ISA_M32R1 || - c->isa_level == MIPS_CPU_ISA_M32R2 || - c->isa_level == MIPS_CPU_ISA_M64R1 || - c->isa_level == MIPS_CPU_ISA_M64R2) { + if (c->isa_level & (MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M32R2 | + MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2)) { #ifdef CONFIG_MIPS_CPU_SCACHE if (mips_sc_init ()) { scache_size = c->scache.ways * c->scache.sets * c->scache.linesz; diff --git a/arch/mips/mm/page.c b/arch/mips/mm/page.c index a29fba55b53e..4eb8dcfaf1ce 100644 --- a/arch/mips/mm/page.c +++ b/arch/mips/mm/page.c @@ -247,6 +247,11 @@ void __cpuinit build_clear_page(void) struct uasm_label *l = labels; struct uasm_reloc *r = relocs; int i; + static atomic_t run_once = ATOMIC_INIT(0); + + if (atomic_xchg(&run_once, 1)) { + return; + } memset(labels, 0, sizeof(labels)); memset(relocs, 0, sizeof(relocs)); @@ -389,6 +394,11 @@ void __cpuinit build_copy_page(void) struct uasm_label *l = labels; struct uasm_reloc *r = relocs; int i; + static atomic_t run_once = ATOMIC_INIT(0); + + if (atomic_xchg(&run_once, 1)) { + return; + } memset(labels, 0, sizeof(labels)); memset(relocs, 0, sizeof(relocs)); diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c index 93d937b4b1ba..df96da7e939b 100644 --- a/arch/mips/mm/sc-mips.c +++ b/arch/mips/mm/sc-mips.c @@ -98,10 +98,8 @@ static inline int __init mips_sc_probe(void) c->scache.flags |= MIPS_CACHE_NOT_PRESENT; /* Ignore anything but MIPSxx processors */ - if (c->isa_level != MIPS_CPU_ISA_M32R1 && - c->isa_level != MIPS_CPU_ISA_M32R2 && - c->isa_level != MIPS_CPU_ISA_M64R1 && - c->isa_level != MIPS_CPU_ISA_M64R2) + if (!(c->isa_level & (MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M32R2 | + MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2))) return 0; /* Does this MIPS32/MIPS64 CPU have a config2 register? */ diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 820e6612d744..3b3822afb059 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -1458,17 +1458,17 @@ u32 handle_tlbl[FASTPATH_SIZE] __cacheline_aligned; u32 handle_tlbs[FASTPATH_SIZE] __cacheline_aligned; u32 handle_tlbm[FASTPATH_SIZE] __cacheline_aligned; #ifdef CONFIG_MIPS_PGD_C0_CONTEXT -u32 tlbmiss_handler_setup_pgd[16] __cacheline_aligned; +u32 tlbmiss_handler_setup_pgd_array[16] __cacheline_aligned; static void __cpuinit build_r4000_setup_pgd(void) { const int a0 = 4; const int a1 = 5; - u32 *p = tlbmiss_handler_setup_pgd; + u32 *p = tlbmiss_handler_setup_pgd_array; struct uasm_label *l = labels; struct uasm_reloc *r = relocs; - memset(tlbmiss_handler_setup_pgd, 0, sizeof(tlbmiss_handler_setup_pgd)); + memset(tlbmiss_handler_setup_pgd_array, 0, sizeof(tlbmiss_handler_setup_pgd_array)); memset(labels, 0, sizeof(labels)); memset(relocs, 0, sizeof(relocs)); @@ -1496,15 +1496,15 @@ static void __cpuinit build_r4000_setup_pgd(void) uasm_i_jr(&p, 31); UASM_i_MTC0(&p, a0, 31, pgd_reg); } - if (p - tlbmiss_handler_setup_pgd > ARRAY_SIZE(tlbmiss_handler_setup_pgd)) - panic("tlbmiss_handler_setup_pgd space exceeded"); + if (p - tlbmiss_handler_setup_pgd_array > ARRAY_SIZE(tlbmiss_handler_setup_pgd_array)) + panic("tlbmiss_handler_setup_pgd_array space exceeded"); uasm_resolve_relocs(relocs, labels); - pr_debug("Wrote tlbmiss_handler_setup_pgd (%u instructions).\n", - (unsigned int)(p - tlbmiss_handler_setup_pgd)); + pr_debug("Wrote tlbmiss_handler_setup_pgd_array (%u instructions).\n", + (unsigned int)(p - tlbmiss_handler_setup_pgd_array)); dump_handler("tlbmiss_handler", - tlbmiss_handler_setup_pgd, - ARRAY_SIZE(tlbmiss_handler_setup_pgd)); + tlbmiss_handler_setup_pgd_array, + ARRAY_SIZE(tlbmiss_handler_setup_pgd_array)); } #endif @@ -2162,8 +2162,11 @@ void __cpuinit build_tlb_refill_handler(void) case CPU_TX3922: case CPU_TX3927: #ifndef CONFIG_MIPS_PGD_C0_CONTEXT - build_r3000_tlb_refill_handler(); + if (cpu_has_local_ebase) + build_r3000_tlb_refill_handler(); if (!run_once) { + if (!cpu_has_local_ebase) + build_r3000_tlb_refill_handler(); build_r3000_tlb_load_handler(); build_r3000_tlb_store_handler(); build_r3000_tlb_modify_handler(); @@ -2192,9 +2195,12 @@ void __cpuinit build_tlb_refill_handler(void) build_r4000_tlb_load_handler(); build_r4000_tlb_store_handler(); build_r4000_tlb_modify_handler(); + if (!cpu_has_local_ebase) + build_r4000_tlb_refill_handler(); run_once++; } - build_r4000_tlb_refill_handler(); + if (cpu_has_local_ebase) + build_r4000_tlb_refill_handler(); } } @@ -2207,7 +2213,7 @@ void __cpuinit flush_tlb_handlers(void) local_flush_icache_range((unsigned long)handle_tlbm, (unsigned long)handle_tlbm + sizeof(handle_tlbm)); #ifdef CONFIG_MIPS_PGD_C0_CONTEXT - local_flush_icache_range((unsigned long)tlbmiss_handler_setup_pgd, - (unsigned long)tlbmiss_handler_setup_pgd + sizeof(handle_tlbm)); + local_flush_icache_range((unsigned long)tlbmiss_handler_setup_pgd_array, + (unsigned long)tlbmiss_handler_setup_pgd_array + sizeof(handle_tlbm)); #endif } |