diff options
Diffstat (limited to 'target/xtensa/mmu_helper.c')
| -rw-r--r-- | target/xtensa/mmu_helper.c | 163 |
1 files changed, 87 insertions, 76 deletions
diff --git a/target/xtensa/mmu_helper.c b/target/xtensa/mmu_helper.c index 79a10da231..465cfbf613 100644 --- a/target/xtensa/mmu_helper.c +++ b/target/xtensa/mmu_helper.c @@ -78,8 +78,8 @@ static uint32_t get_page_size(const CPUXtensaState *env, /*! * Get bit mask for the virtual address bits translated by the TLB way */ -uint32_t xtensa_tlb_get_addr_mask(const CPUXtensaState *env, - bool dtlb, uint32_t way) +static uint32_t xtensa_tlb_get_addr_mask(const CPUXtensaState *env, + bool dtlb, uint32_t way) { if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { bool varway56 = dtlb ? @@ -145,8 +145,9 @@ static uint32_t get_vpn_mask(const CPUXtensaState *env, bool dtlb, uint32_t way) * Split virtual address into VPN (with index) and entry index * for the given TLB way */ -void split_tlb_entry_spec_way(const CPUXtensaState *env, uint32_t v, bool dtlb, - uint32_t *vpn, uint32_t wi, uint32_t *ei) +static void split_tlb_entry_spec_way(const CPUXtensaState *env, uint32_t v, + bool dtlb, uint32_t *vpn, + uint32_t wi, uint32_t *ei) { bool varway56 = dtlb ? env->config->dtlb.varway56 : @@ -213,6 +214,14 @@ static void split_tlb_entry_spec(CPUXtensaState *env, uint32_t v, bool dtlb, } } +static xtensa_tlb_entry *xtensa_tlb_get_entry(CPUXtensaState *env, bool dtlb, + unsigned wi, unsigned ei) +{ + return dtlb ? + env->dtlb[wi] + ei : + env->itlb[wi] + ei; +} + static xtensa_tlb_entry *get_tlb_entry(CPUXtensaState *env, uint32_t v, bool dtlb, uint32_t *pwi) { @@ -227,65 +236,10 @@ static xtensa_tlb_entry *get_tlb_entry(CPUXtensaState *env, return xtensa_tlb_get_entry(env, dtlb, wi, ei); } -uint32_t HELPER(rtlb0)(CPUXtensaState *env, uint32_t v, uint32_t dtlb) -{ - if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { - uint32_t wi; - const xtensa_tlb_entry *entry = get_tlb_entry(env, v, dtlb, &wi); - return (entry->vaddr & get_vpn_mask(env, dtlb, wi)) | entry->asid; - } else { - return v & REGION_PAGE_MASK; - } -} - -uint32_t HELPER(rtlb1)(CPUXtensaState *env, uint32_t v, uint32_t dtlb) -{ - const xtensa_tlb_entry *entry = get_tlb_entry(env, v, dtlb, NULL); - return entry->paddr | entry->attr; -} - -void HELPER(itlb)(CPUXtensaState *env, uint32_t v, uint32_t dtlb) -{ - if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { - uint32_t wi; - xtensa_tlb_entry *entry = get_tlb_entry(env, v, dtlb, &wi); - if (entry->variable && entry->asid) { - tlb_flush_page(CPU(xtensa_env_get_cpu(env)), entry->vaddr); - entry->asid = 0; - } - } -} - -uint32_t HELPER(ptlb)(CPUXtensaState *env, uint32_t v, uint32_t dtlb) -{ - if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { - uint32_t wi; - uint32_t ei; - uint8_t ring; - int res = xtensa_tlb_lookup(env, v, dtlb, &wi, &ei, &ring); - - switch (res) { - case 0: - if (ring >= xtensa_get_ring(env)) { - return (v & 0xfffff000) | wi | (dtlb ? 0x10 : 0x8); - } - break; - - case INST_TLB_MULTI_HIT_CAUSE: - case LOAD_STORE_TLB_MULTI_HIT_CAUSE: - HELPER(exception_cause_vaddr)(env, env->pc, res, v); - break; - } - return 0; - } else { - return (v & REGION_PAGE_MASK) | 0x1; - } -} - -void xtensa_tlb_set_entry_mmu(const CPUXtensaState *env, - xtensa_tlb_entry *entry, bool dtlb, - unsigned wi, unsigned ei, uint32_t vpn, - uint32_t pte) +static void xtensa_tlb_set_entry_mmu(const CPUXtensaState *env, + xtensa_tlb_entry *entry, bool dtlb, + unsigned wi, unsigned ei, uint32_t vpn, + uint32_t pte) { entry->vaddr = vpn; entry->paddr = pte & xtensa_tlb_get_addr_mask(env, dtlb, wi); @@ -293,8 +247,9 @@ void xtensa_tlb_set_entry_mmu(const CPUXtensaState *env, entry->attr = pte & 0xf; } -void xtensa_tlb_set_entry(CPUXtensaState *env, bool dtlb, - unsigned wi, unsigned ei, uint32_t vpn, uint32_t pte) +static void xtensa_tlb_set_entry(CPUXtensaState *env, bool dtlb, + unsigned wi, unsigned ei, + uint32_t vpn, uint32_t pte) { XtensaCPU *cpu = xtensa_env_get_cpu(env); CPUState *cs = CPU(cpu); @@ -322,15 +277,6 @@ void xtensa_tlb_set_entry(CPUXtensaState *env, bool dtlb, } } -void HELPER(wtlb)(CPUXtensaState *env, uint32_t p, uint32_t v, uint32_t dtlb) -{ - uint32_t vpn; - uint32_t wi; - uint32_t ei; - split_tlb_entry_spec(env, v, dtlb, &vpn, &wi, &ei); - xtensa_tlb_set_entry(env, dtlb, wi, ei, vpn, p); -} - hwaddr xtensa_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) { XtensaCPU *cpu = XTENSA_CPU(cs); @@ -462,8 +408,9 @@ static unsigned get_ring(const CPUXtensaState *env, uint8_t asid) * \param pring: [out] access ring * \return 0 if ok, exception cause code otherwise */ -int xtensa_tlb_lookup(const CPUXtensaState *env, uint32_t addr, bool dtlb, - uint32_t *pwi, uint32_t *pei, uint8_t *pring) +static int xtensa_tlb_lookup(const CPUXtensaState *env, + uint32_t addr, bool dtlb, + uint32_t *pwi, uint32_t *pei, uint8_t *pring) { const xtensa_tlb *tlb = dtlb ? &env->config->dtlb : &env->config->itlb; @@ -495,6 +442,70 @@ int xtensa_tlb_lookup(const CPUXtensaState *env, uint32_t addr, bool dtlb, (dtlb ? LOAD_STORE_TLB_MISS_CAUSE : INST_TLB_MISS_CAUSE); } +uint32_t HELPER(rtlb0)(CPUXtensaState *env, uint32_t v, uint32_t dtlb) +{ + if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { + uint32_t wi; + const xtensa_tlb_entry *entry = get_tlb_entry(env, v, dtlb, &wi); + return (entry->vaddr & get_vpn_mask(env, dtlb, wi)) | entry->asid; + } else { + return v & REGION_PAGE_MASK; + } +} + +uint32_t HELPER(rtlb1)(CPUXtensaState *env, uint32_t v, uint32_t dtlb) +{ + const xtensa_tlb_entry *entry = get_tlb_entry(env, v, dtlb, NULL); + return entry->paddr | entry->attr; +} + +void HELPER(itlb)(CPUXtensaState *env, uint32_t v, uint32_t dtlb) +{ + if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { + uint32_t wi; + xtensa_tlb_entry *entry = get_tlb_entry(env, v, dtlb, &wi); + if (entry->variable && entry->asid) { + tlb_flush_page(CPU(xtensa_env_get_cpu(env)), entry->vaddr); + entry->asid = 0; + } + } +} + +uint32_t HELPER(ptlb)(CPUXtensaState *env, uint32_t v, uint32_t dtlb) +{ + if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) { + uint32_t wi; + uint32_t ei; + uint8_t ring; + int res = xtensa_tlb_lookup(env, v, dtlb, &wi, &ei, &ring); + + switch (res) { + case 0: + if (ring >= xtensa_get_ring(env)) { + return (v & 0xfffff000) | wi | (dtlb ? 0x10 : 0x8); + } + break; + + case INST_TLB_MULTI_HIT_CAUSE: + case LOAD_STORE_TLB_MULTI_HIT_CAUSE: + HELPER(exception_cause_vaddr)(env, env->pc, res, v); + break; + } + return 0; + } else { + return (v & REGION_PAGE_MASK) | 0x1; + } +} + +void HELPER(wtlb)(CPUXtensaState *env, uint32_t p, uint32_t v, uint32_t dtlb) +{ + uint32_t vpn; + uint32_t wi; + uint32_t ei; + split_tlb_entry_spec(env, v, dtlb, &vpn, &wi, &ei); + xtensa_tlb_set_entry(env, dtlb, wi, ei, vpn, p); +} + /*! * Convert MMU ATTR to PAGE_{READ,WRITE,EXEC} mask. * See ISA, 4.6.5.10 |