| Message ID | 20210518201146.794854-23-richard.henderson@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | target/ppc: Clean up mmu translation | expand |
On 18/05/2021 17:11, Richard Henderson wrote: > Mirror the interface of ppc_radix64_xlate (mostly), putting all > of the logic for older mmu translation into a single entry point. > For booke, we need to add mmu_idx to the xlate-style interface. > > Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Out of my depth again, but testing seems fine, so Acked-by: Bruno Larsen (billionai)<bruno.larsen@eldorado.org.br> > --- > target/ppc/mmu_helper.c | 181 +++++++++++++++++++++------------------- > 1 file changed, 97 insertions(+), 84 deletions(-) > > diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c > index 863e556a22..68c2e59238 100644 > --- a/target/ppc/mmu_helper.c > +++ b/target/ppc/mmu_helper.c > @@ -1427,48 +1427,6 @@ static int get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx, > return get_physical_address_wtlb(env, ctx, eaddr, access_type, type, 0); > } > > -hwaddr ppc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) > -{ > - PowerPCCPU *cpu = POWERPC_CPU(cs); > - CPUPPCState *env = &cpu->env; > - mmu_ctx_t ctx; > - > - switch (env->mmu_model) { > -#if defined(TARGET_PPC64) > - case POWERPC_MMU_64B: > - case POWERPC_MMU_2_03: > - case POWERPC_MMU_2_06: > - case POWERPC_MMU_2_07: > - return ppc_hash64_get_phys_page_debug(cpu, addr); > - case POWERPC_MMU_3_00: > - return ppc64_v3_get_phys_page_debug(cpu, addr); > -#endif > - > - case POWERPC_MMU_32B: > - case POWERPC_MMU_601: > - return ppc_hash32_get_phys_page_debug(cpu, addr); > - > - default: > - ; > - } > - > - if (unlikely(get_physical_address(env, &ctx, addr, MMU_DATA_LOAD, > - ACCESS_INT) != 0)) { > - > - /* > - * Some MMUs have separate TLBs for code and data. If we only > - * try an ACCESS_INT, we may not be able to read instructions > - * mapped by code TLBs, so we also try a ACCESS_CODE. > - */ > - if (unlikely(get_physical_address(env, &ctx, addr, MMU_INST_FETCH, > - ACCESS_CODE) != 0)) { > - return -1; > - } > - } > - > - return ctx.raddr & TARGET_PAGE_MASK; > -} > - > static void booke206_update_mas_tlb_miss(CPUPPCState *env, target_ulong address, > MMUAccessType access_type, int mmu_idx) > { > @@ -1524,30 +1482,38 @@ static void booke206_update_mas_tlb_miss(CPUPPCState *env, target_ulong address, > } > > /* Perform address translation */ > -static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > - MMUAccessType access_type, int mmu_idx) > +/* TODO: Split this by mmu_model. */ > +static bool ppc_jumbo_xlate(PowerPCCPU *cpu, vaddr eaddr, > + MMUAccessType access_type, > + hwaddr *raddrp, int *psizep, int *protp, > + int mmu_idx, bool guest_visible) > { > - CPUState *cs = env_cpu(env); > - PowerPCCPU *cpu = POWERPC_CPU(cs); > + CPUState *cs = CPU(cpu); > + CPUPPCState *env = &cpu->env; > mmu_ctx_t ctx; > int type; > - int ret = 0; > + int ret; > > if (access_type == MMU_INST_FETCH) { > /* code access */ > type = ACCESS_CODE; > - } else { > + } else if (guest_visible) { > /* data access */ > type = env->access_type; > + } else { > + type = ACCESS_INT; > } > - ret = get_physical_address_wtlb(env, &ctx, address, access_type, > + > + ret = get_physical_address_wtlb(env, &ctx, eaddr, access_type, > type, mmu_idx); > if (ret == 0) { > - tlb_set_page(cs, address & TARGET_PAGE_MASK, > - ctx.raddr & TARGET_PAGE_MASK, ctx.prot, > - mmu_idx, TARGET_PAGE_SIZE); > - ret = 0; > - } else if (ret < 0) { > + *raddrp = ctx.raddr; > + *protp = ctx.prot; > + *psizep = TARGET_PAGE_BITS; > + return true; > + } > + > + if (guest_visible) { > LOG_MMU_STATE(cs); > if (type == ACCESS_CODE) { > switch (ret) { > @@ -1557,7 +1523,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > case POWERPC_MMU_SOFT_6xx: > cs->exception_index = POWERPC_EXCP_IFTLB; > env->error_code = 1 << 18; > - env->spr[SPR_IMISS] = address; > + env->spr[SPR_IMISS] = eaddr; > env->spr[SPR_ICMP] = 0x80000000 | ctx.ptem; > goto tlb_miss; > case POWERPC_MMU_SOFT_74xx: > @@ -1567,29 +1533,25 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > case POWERPC_MMU_SOFT_4xx_Z: > cs->exception_index = POWERPC_EXCP_ITLB; > env->error_code = 0; > - env->spr[SPR_40x_DEAR] = address; > + env->spr[SPR_40x_DEAR] = eaddr; > env->spr[SPR_40x_ESR] = 0x00000000; > break; > case POWERPC_MMU_BOOKE206: > - booke206_update_mas_tlb_miss(env, address, 2, mmu_idx); > + booke206_update_mas_tlb_miss(env, eaddr, 2, mmu_idx); > /* fall through */ > case POWERPC_MMU_BOOKE: > cs->exception_index = POWERPC_EXCP_ITLB; > env->error_code = 0; > - env->spr[SPR_BOOKE_DEAR] = address; > + env->spr[SPR_BOOKE_DEAR] = eaddr; > env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, MMU_DATA_LOAD); > - return -1; > - case POWERPC_MMU_MPC8xx: > - /* XXX: TODO */ > - cpu_abort(cs, "MPC8xx MMU model is not implemented\n"); > break; > + case POWERPC_MMU_MPC8xx: > + cpu_abort(cs, "MPC8xx MMU model is not implemented\n"); > case POWERPC_MMU_REAL: > cpu_abort(cs, "PowerPC in real mode should never raise " > "any MMU exceptions\n"); > - return -1; > default: > cpu_abort(cs, "Unknown or invalid MMU model\n"); > - return -1; > } > break; > case -2: > @@ -1626,7 +1588,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > cs->exception_index = POWERPC_EXCP_DLTLB; > env->error_code = 0; > } > - env->spr[SPR_DMISS] = address; > + env->spr[SPR_DMISS] = eaddr; > env->spr[SPR_DCMP] = 0x80000000 | ctx.ptem; > tlb_miss: > env->error_code |= ctx.key << 19; > @@ -1644,7 +1606,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > tlb_miss_74xx: > /* Implement LRU algorithm */ > env->error_code = ctx.key << 19; > - env->spr[SPR_TLBMISS] = (address & ~((target_ulong)0x3)) | > + env->spr[SPR_TLBMISS] = (eaddr & ~((target_ulong)0x3)) | > ((env->last_way + 1) & (env->nb_ways - 1)); > env->spr[SPR_PTEHI] = 0x80000000 | ctx.ptem; > break; > @@ -1652,7 +1614,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > case POWERPC_MMU_SOFT_4xx_Z: > cs->exception_index = POWERPC_EXCP_DTLB; > env->error_code = 0; > - env->spr[SPR_40x_DEAR] = address; > + env->spr[SPR_40x_DEAR] = eaddr; > if (access_type == MMU_DATA_STORE) { > env->spr[SPR_40x_ESR] = 0x00800000; > } else { > @@ -1662,23 +1624,20 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > case POWERPC_MMU_MPC8xx: > /* XXX: TODO */ > cpu_abort(cs, "MPC8xx MMU model is not implemented\n"); > - break; > case POWERPC_MMU_BOOKE206: > - booke206_update_mas_tlb_miss(env, address, access_type, mmu_idx); > + booke206_update_mas_tlb_miss(env, eaddr, access_type, mmu_idx); > /* fall through */ > case POWERPC_MMU_BOOKE: > cs->exception_index = POWERPC_EXCP_DTLB; > env->error_code = 0; > - env->spr[SPR_BOOKE_DEAR] = address; > + env->spr[SPR_BOOKE_DEAR] = eaddr; > env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, access_type); > - return -1; > + break; > case POWERPC_MMU_REAL: > cpu_abort(cs, "PowerPC in real mode should never raise " > "any MMU exceptions\n"); > - return -1; > default: > cpu_abort(cs, "Unknown or invalid MMU model\n"); > - return -1; > } > break; > case -2: > @@ -1687,16 +1646,16 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > env->error_code = 0; > if (env->mmu_model == POWERPC_MMU_SOFT_4xx > || env->mmu_model == POWERPC_MMU_SOFT_4xx_Z) { > - env->spr[SPR_40x_DEAR] = address; > + env->spr[SPR_40x_DEAR] = eaddr; > if (access_type == MMU_DATA_STORE) { > env->spr[SPR_40x_ESR] |= 0x00800000; > } > } else if ((env->mmu_model == POWERPC_MMU_BOOKE) || > (env->mmu_model == POWERPC_MMU_BOOKE206)) { > - env->spr[SPR_BOOKE_DEAR] = address; > + env->spr[SPR_BOOKE_DEAR] = eaddr; > env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, access_type); > } else { > - env->spr[SPR_DAR] = address; > + env->spr[SPR_DAR] = eaddr; > if (access_type == MMU_DATA_STORE) { > env->spr[SPR_DSISR] = 0x0A000000; > } else { > @@ -1711,13 +1670,13 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > /* Floating point load/store */ > cs->exception_index = POWERPC_EXCP_ALIGN; > env->error_code = POWERPC_EXCP_ALIGN_FP; > - env->spr[SPR_DAR] = address; > + env->spr[SPR_DAR] = eaddr; > break; > case ACCESS_RES: > /* lwarx, ldarx or stwcx. */ > cs->exception_index = POWERPC_EXCP_DSI; > env->error_code = 0; > - env->spr[SPR_DAR] = address; > + env->spr[SPR_DAR] = eaddr; > if (access_type == MMU_DATA_STORE) { > env->spr[SPR_DSISR] = 0x06000000; > } else { > @@ -1728,7 +1687,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > /* eciwx or ecowx */ > cs->exception_index = POWERPC_EXCP_DSI; > env->error_code = 0; > - env->spr[SPR_DAR] = address; > + env->spr[SPR_DAR] = eaddr; > if (access_type == MMU_DATA_STORE) { > env->spr[SPR_DSISR] = 0x06100000; > } else { > @@ -1740,16 +1699,14 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > cs->exception_index = POWERPC_EXCP_PROGRAM; > env->error_code = > POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL; > - env->spr[SPR_DAR] = address; > + env->spr[SPR_DAR] = eaddr; > break; > } > break; > } > } > - ret = 1; > } > - > - return ret; > + return false; > } > > /*****************************************************************************/ > @@ -2958,6 +2915,62 @@ void helper_check_tlb_flush_global(CPUPPCState *env) > > /*****************************************************************************/ > > +static int cpu_ppc_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr, > + MMUAccessType access_type, int mmu_idx) > +{ > + CPUState *cs = CPU(cpu); > + int page_size, prot; > + hwaddr raddr; > + > + if (!ppc_jumbo_xlate(cpu, eaddr, access_type, &raddr, > + &page_size, &prot, mmu_idx, true)) { > + return 1; > + } > + > + tlb_set_page(cs, eaddr & TARGET_PAGE_MASK, raddr & TARGET_PAGE_MASK, > + prot, mmu_idx, 1UL << page_size); > + return 0; > +} > + > +hwaddr ppc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) > +{ > + PowerPCCPU *cpu = POWERPC_CPU(cs); > + CPUPPCState *env = &cpu->env; > + hwaddr raddr; > + int s, p; > + > + switch (env->mmu_model) { > +#if defined(TARGET_PPC64) > + case POWERPC_MMU_64B: > + case POWERPC_MMU_2_03: > + case POWERPC_MMU_2_06: > + case POWERPC_MMU_2_07: > + return ppc_hash64_get_phys_page_debug(cpu, addr); > + case POWERPC_MMU_3_00: > + return ppc64_v3_get_phys_page_debug(cpu, addr); > +#endif > + > + case POWERPC_MMU_32B: > + case POWERPC_MMU_601: > + return ppc_hash32_get_phys_page_debug(cpu, addr); > + > + default: > + ; > + } > + > + /* > + * Some MMUs have separate TLBs for code and data. If we only > + * try an MMU_DATA_LOAD, we may not be able to read instructions > + * mapped by code TLBs, so we also try a MMU_INST_FETCH. > + */ > + if (ppc_jumbo_xlate(cpu, addr, MMU_DATA_LOAD, &raddr, &s, &p, 0, false) || > + ppc_jumbo_xlate(cpu, addr, MMU_INST_FETCH, &raddr, &s, &p, 0, false)) { > + return raddr & TARGET_PAGE_MASK; > + } > + return -1; > +} > + > + > bool ppc_cpu_tlb_fill(CPUState *cs, vaddr addr, int size, > MMUAccessType access_type, int mmu_idx, > bool probe, uintptr_t retaddr) > @@ -2985,7 +2998,7 @@ bool ppc_cpu_tlb_fill(CPUState *cs, vaddr addr, int size, > break; > > default: > - ret = cpu_ppc_handle_mmu_fault(env, addr, access_type, mmu_idx); > + ret = cpu_ppc_handle_mmu_fault(cpu, addr, access_type, mmu_idx); > break; > } > if (unlikely(ret != 0)) { -- Bruno Piazera Larsen Instituto de Pesquisas ELDORADO <https://www.eldorado.org.br/?utm_campaign=assinatura_de_e-mail&utm_medium=email&utm_source=RD+Station> Departamento Computação Embarcada Analista de Software Trainee Aviso Legal - Disclaimer <https://www.eldorado.org.br/disclaimer.html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> <p><br> </p> <div class="moz-cite-prefix">On 18/05/2021 17:11, Richard Henderson wrote:<br> </div> <blockquote type="cite" cite="mid:20210518201146.794854-23-richard.henderson@linaro.org"> <pre class="moz-quote-pre" wrap="">Mirror the interface of ppc_radix64_xlate (mostly), putting all of the logic for older mmu translation into a single entry point. For booke, we need to add mmu_idx to the xlate-style interface. Signed-off-by: Richard Henderson <a class="moz-txt-link-rfc2396E" href="mailto:richard.henderson@linaro.org"><richard.henderson@linaro.org></a></pre> </blockquote> Out of my depth again, but testing seems fine, so <br> <pre class="moz-quote-pre" wrap="">Acked-by: Bruno Larsen (billionai) <a class="moz-txt-link-rfc2396E" href="mailto:bruno.larsen@eldorado.org.br"><bruno.larsen@eldorado.org.br></a></pre> <blockquote type="cite" cite="mid:20210518201146.794854-23-richard.henderson@linaro.org"> <pre class="moz-quote-pre" wrap=""> --- target/ppc/mmu_helper.c | 181 +++++++++++++++++++++------------------- 1 file changed, 97 insertions(+), 84 deletions(-) diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c index 863e556a22..68c2e59238 100644 --- a/target/ppc/mmu_helper.c +++ b/target/ppc/mmu_helper.c @@ -1427,48 +1427,6 @@ static int get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx, return get_physical_address_wtlb(env, ctx, eaddr, access_type, type, 0); } -hwaddr ppc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) -{ - PowerPCCPU *cpu = POWERPC_CPU(cs); - CPUPPCState *env = &cpu->env; - mmu_ctx_t ctx; - - switch (env->mmu_model) { -#if defined(TARGET_PPC64) - case POWERPC_MMU_64B: - case POWERPC_MMU_2_03: - case POWERPC_MMU_2_06: - case POWERPC_MMU_2_07: - return ppc_hash64_get_phys_page_debug(cpu, addr); - case POWERPC_MMU_3_00: - return ppc64_v3_get_phys_page_debug(cpu, addr); -#endif - - case POWERPC_MMU_32B: - case POWERPC_MMU_601: - return ppc_hash32_get_phys_page_debug(cpu, addr); - - default: - ; - } - - if (unlikely(get_physical_address(env, &ctx, addr, MMU_DATA_LOAD, - ACCESS_INT) != 0)) { - - /* - * Some MMUs have separate TLBs for code and data. If we only - * try an ACCESS_INT, we may not be able to read instructions - * mapped by code TLBs, so we also try a ACCESS_CODE. - */ - if (unlikely(get_physical_address(env, &ctx, addr, MMU_INST_FETCH, - ACCESS_CODE) != 0)) { - return -1; - } - } - - return ctx.raddr & TARGET_PAGE_MASK; -} - static void booke206_update_mas_tlb_miss(CPUPPCState *env, target_ulong address, MMUAccessType access_type, int mmu_idx) { @@ -1524,30 +1482,38 @@ static void booke206_update_mas_tlb_miss(CPUPPCState *env, target_ulong address, } /* Perform address translation */ -static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, - MMUAccessType access_type, int mmu_idx) +/* TODO: Split this by mmu_model. */ +static bool ppc_jumbo_xlate(PowerPCCPU *cpu, vaddr eaddr, + MMUAccessType access_type, + hwaddr *raddrp, int *psizep, int *protp, + int mmu_idx, bool guest_visible) { - CPUState *cs = env_cpu(env); - PowerPCCPU *cpu = POWERPC_CPU(cs); + CPUState *cs = CPU(cpu); + CPUPPCState *env = &cpu->env; mmu_ctx_t ctx; int type; - int ret = 0; + int ret; if (access_type == MMU_INST_FETCH) { /* code access */ type = ACCESS_CODE; - } else { + } else if (guest_visible) { /* data access */ type = env->access_type; + } else { + type = ACCESS_INT; } - ret = get_physical_address_wtlb(env, &ctx, address, access_type, + + ret = get_physical_address_wtlb(env, &ctx, eaddr, access_type, type, mmu_idx); if (ret == 0) { - tlb_set_page(cs, address & TARGET_PAGE_MASK, - ctx.raddr & TARGET_PAGE_MASK, ctx.prot, - mmu_idx, TARGET_PAGE_SIZE); - ret = 0; - } else if (ret < 0) { + *raddrp = ctx.raddr; + *protp = ctx.prot; + *psizep = TARGET_PAGE_BITS; + return true; + } + + if (guest_visible) { LOG_MMU_STATE(cs); if (type == ACCESS_CODE) { switch (ret) { @@ -1557,7 +1523,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, case POWERPC_MMU_SOFT_6xx: cs->exception_index = POWERPC_EXCP_IFTLB; env->error_code = 1 << 18; - env->spr[SPR_IMISS] = address; + env->spr[SPR_IMISS] = eaddr; env->spr[SPR_ICMP] = 0x80000000 | ctx.ptem; goto tlb_miss; case POWERPC_MMU_SOFT_74xx: @@ -1567,29 +1533,25 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, case POWERPC_MMU_SOFT_4xx_Z: cs->exception_index = POWERPC_EXCP_ITLB; env->error_code = 0; - env->spr[SPR_40x_DEAR] = address; + env->spr[SPR_40x_DEAR] = eaddr; env->spr[SPR_40x_ESR] = 0x00000000; break; case POWERPC_MMU_BOOKE206: - booke206_update_mas_tlb_miss(env, address, 2, mmu_idx); + booke206_update_mas_tlb_miss(env, eaddr, 2, mmu_idx); /* fall through */ case POWERPC_MMU_BOOKE: cs->exception_index = POWERPC_EXCP_ITLB; env->error_code = 0; - env->spr[SPR_BOOKE_DEAR] = address; + env->spr[SPR_BOOKE_DEAR] = eaddr; env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, MMU_DATA_LOAD); - return -1; - case POWERPC_MMU_MPC8xx: - /* XXX: TODO */ - cpu_abort(cs, "MPC8xx MMU model is not implemented\n"); break; + case POWERPC_MMU_MPC8xx: + cpu_abort(cs, "MPC8xx MMU model is not implemented\n"); case POWERPC_MMU_REAL: cpu_abort(cs, "PowerPC in real mode should never raise " "any MMU exceptions\n"); - return -1; default: cpu_abort(cs, "Unknown or invalid MMU model\n"); - return -1; } break; case -2: @@ -1626,7 +1588,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, cs->exception_index = POWERPC_EXCP_DLTLB; env->error_code = 0; } - env->spr[SPR_DMISS] = address; + env->spr[SPR_DMISS] = eaddr; env->spr[SPR_DCMP] = 0x80000000 | ctx.ptem; tlb_miss: env->error_code |= ctx.key << 19; @@ -1644,7 +1606,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, tlb_miss_74xx: /* Implement LRU algorithm */ env->error_code = ctx.key << 19; - env->spr[SPR_TLBMISS] = (address & ~((target_ulong)0x3)) | + env->spr[SPR_TLBMISS] = (eaddr & ~((target_ulong)0x3)) | ((env->last_way + 1) & (env->nb_ways - 1)); env->spr[SPR_PTEHI] = 0x80000000 | ctx.ptem; break; @@ -1652,7 +1614,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, case POWERPC_MMU_SOFT_4xx_Z: cs->exception_index = POWERPC_EXCP_DTLB; env->error_code = 0; - env->spr[SPR_40x_DEAR] = address; + env->spr[SPR_40x_DEAR] = eaddr; if (access_type == MMU_DATA_STORE) { env->spr[SPR_40x_ESR] = 0x00800000; } else { @@ -1662,23 +1624,20 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, case POWERPC_MMU_MPC8xx: /* XXX: TODO */ cpu_abort(cs, "MPC8xx MMU model is not implemented\n"); - break; case POWERPC_MMU_BOOKE206: - booke206_update_mas_tlb_miss(env, address, access_type, mmu_idx); + booke206_update_mas_tlb_miss(env, eaddr, access_type, mmu_idx); /* fall through */ case POWERPC_MMU_BOOKE: cs->exception_index = POWERPC_EXCP_DTLB; env->error_code = 0; - env->spr[SPR_BOOKE_DEAR] = address; + env->spr[SPR_BOOKE_DEAR] = eaddr; env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, access_type); - return -1; + break; case POWERPC_MMU_REAL: cpu_abort(cs, "PowerPC in real mode should never raise " "any MMU exceptions\n"); - return -1; default: cpu_abort(cs, "Unknown or invalid MMU model\n"); - return -1; } break; case -2: @@ -1687,16 +1646,16 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, env->error_code = 0; if (env->mmu_model == POWERPC_MMU_SOFT_4xx || env->mmu_model == POWERPC_MMU_SOFT_4xx_Z) { - env->spr[SPR_40x_DEAR] = address; + env->spr[SPR_40x_DEAR] = eaddr; if (access_type == MMU_DATA_STORE) { env->spr[SPR_40x_ESR] |= 0x00800000; } } else if ((env->mmu_model == POWERPC_MMU_BOOKE) || (env->mmu_model == POWERPC_MMU_BOOKE206)) { - env->spr[SPR_BOOKE_DEAR] = address; + env->spr[SPR_BOOKE_DEAR] = eaddr; env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, access_type); } else { - env->spr[SPR_DAR] = address; + env->spr[SPR_DAR] = eaddr; if (access_type == MMU_DATA_STORE) { env->spr[SPR_DSISR] = 0x0A000000; } else { @@ -1711,13 +1670,13 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, /* Floating point load/store */ cs->exception_index = POWERPC_EXCP_ALIGN; env->error_code = POWERPC_EXCP_ALIGN_FP; - env->spr[SPR_DAR] = address; + env->spr[SPR_DAR] = eaddr; break; case ACCESS_RES: /* lwarx, ldarx or stwcx. */ cs->exception_index = POWERPC_EXCP_DSI; env->error_code = 0; - env->spr[SPR_DAR] = address; + env->spr[SPR_DAR] = eaddr; if (access_type == MMU_DATA_STORE) { env->spr[SPR_DSISR] = 0x06000000; } else { @@ -1728,7 +1687,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, /* eciwx or ecowx */ cs->exception_index = POWERPC_EXCP_DSI; env->error_code = 0; - env->spr[SPR_DAR] = address; + env->spr[SPR_DAR] = eaddr; if (access_type == MMU_DATA_STORE) { env->spr[SPR_DSISR] = 0x06100000; } else { @@ -1740,16 +1699,14 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, cs->exception_index = POWERPC_EXCP_PROGRAM; env->error_code = POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL; - env->spr[SPR_DAR] = address; + env->spr[SPR_DAR] = eaddr; break; } break; } } - ret = 1; } - - return ret; + return false; } /*****************************************************************************/ @@ -2958,6 +2915,62 @@ void helper_check_tlb_flush_global(CPUPPCState *env) /*****************************************************************************/ +static int cpu_ppc_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr, + MMUAccessType access_type, int mmu_idx) +{ + CPUState *cs = CPU(cpu); + int page_size, prot; + hwaddr raddr; + + if (!ppc_jumbo_xlate(cpu, eaddr, access_type, &raddr, + &page_size, &prot, mmu_idx, true)) { + return 1; + } + + tlb_set_page(cs, eaddr & TARGET_PAGE_MASK, raddr & TARGET_PAGE_MASK, + prot, mmu_idx, 1UL << page_size); + return 0; +} + +hwaddr ppc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) +{ + PowerPCCPU *cpu = POWERPC_CPU(cs); + CPUPPCState *env = &cpu->env; + hwaddr raddr; + int s, p; + + switch (env->mmu_model) { +#if defined(TARGET_PPC64) + case POWERPC_MMU_64B: + case POWERPC_MMU_2_03: + case POWERPC_MMU_2_06: + case POWERPC_MMU_2_07: + return ppc_hash64_get_phys_page_debug(cpu, addr); + case POWERPC_MMU_3_00: + return ppc64_v3_get_phys_page_debug(cpu, addr); +#endif + + case POWERPC_MMU_32B: + case POWERPC_MMU_601: + return ppc_hash32_get_phys_page_debug(cpu, addr); + + default: + ; + } + + /* + * Some MMUs have separate TLBs for code and data. If we only + * try an MMU_DATA_LOAD, we may not be able to read instructions + * mapped by code TLBs, so we also try a MMU_INST_FETCH. + */ + if (ppc_jumbo_xlate(cpu, addr, MMU_DATA_LOAD, &raddr, &s, &p, 0, false) || + ppc_jumbo_xlate(cpu, addr, MMU_INST_FETCH, &raddr, &s, &p, 0, false)) { + return raddr & TARGET_PAGE_MASK; + } + return -1; +} + + bool ppc_cpu_tlb_fill(CPUState *cs, vaddr addr, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr) @@ -2985,7 +2998,7 @@ bool ppc_cpu_tlb_fill(CPUState *cs, vaddr addr, int size, break; default: - ret = cpu_ppc_handle_mmu_fault(env, addr, access_type, mmu_idx); + ret = cpu_ppc_handle_mmu_fault(cpu, addr, access_type, mmu_idx); break; } if (unlikely(ret != 0)) { </pre> </blockquote> <div class="moz-signature">-- <br> Bruno Piazera Larsen<br> <a href="https://www.eldorado.org.br/?utm_campaign=assinatura_de_e-mail&utm_medium=email&utm_source=RD+Station">Instituto de Pesquisas ELDORADO</a><br> Departamento Computação Embarcada<br> Analista de Software Trainee<br> <a href="https://www.eldorado.org.br/disclaimer.html">Aviso Legal - Disclaimer</a></div> </body> </html>
On Wed, May 19, 2021 at 03:40:15PM -0300, Bruno Piazera Larsen wrote: > > On 18/05/2021 17:11, Richard Henderson wrote: > > Mirror the interface of ppc_radix64_xlate (mostly), putting all > > of the logic for older mmu translation into a single entry point. > > For booke, we need to add mmu_idx to the xlate-style interface. > > > > Signed-off-by: Richard Henderson <richard.henderson@linaro.org> > Out of my depth again, but testing seems fine, so In this case you want "Tested-by" rather than "Acked-by". > Acked-by: Bruno Larsen (billionai)<bruno.larsen@eldorado.org.br> > > > --- > > target/ppc/mmu_helper.c | 181 +++++++++++++++++++++------------------- > > 1 file changed, 97 insertions(+), 84 deletions(-) > > > > diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c > > index 863e556a22..68c2e59238 100644 > > --- a/target/ppc/mmu_helper.c > > +++ b/target/ppc/mmu_helper.c > > @@ -1427,48 +1427,6 @@ static int get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx, > > return get_physical_address_wtlb(env, ctx, eaddr, access_type, type, 0); > > } > > -hwaddr ppc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) > > -{ > > - PowerPCCPU *cpu = POWERPC_CPU(cs); > > - CPUPPCState *env = &cpu->env; > > - mmu_ctx_t ctx; > > - > > - switch (env->mmu_model) { > > -#if defined(TARGET_PPC64) > > - case POWERPC_MMU_64B: > > - case POWERPC_MMU_2_03: > > - case POWERPC_MMU_2_06: > > - case POWERPC_MMU_2_07: > > - return ppc_hash64_get_phys_page_debug(cpu, addr); > > - case POWERPC_MMU_3_00: > > - return ppc64_v3_get_phys_page_debug(cpu, addr); > > -#endif > > - > > - case POWERPC_MMU_32B: > > - case POWERPC_MMU_601: > > - return ppc_hash32_get_phys_page_debug(cpu, addr); > > - > > - default: > > - ; > > - } > > - > > - if (unlikely(get_physical_address(env, &ctx, addr, MMU_DATA_LOAD, > > - ACCESS_INT) != 0)) { > > - > > - /* > > - * Some MMUs have separate TLBs for code and data. If we only > > - * try an ACCESS_INT, we may not be able to read instructions > > - * mapped by code TLBs, so we also try a ACCESS_CODE. > > - */ > > - if (unlikely(get_physical_address(env, &ctx, addr, MMU_INST_FETCH, > > - ACCESS_CODE) != 0)) { > > - return -1; > > - } > > - } > > - > > - return ctx.raddr & TARGET_PAGE_MASK; > > -} > > - > > static void booke206_update_mas_tlb_miss(CPUPPCState *env, target_ulong address, > > MMUAccessType access_type, int mmu_idx) > > { > > @@ -1524,30 +1482,38 @@ static void booke206_update_mas_tlb_miss(CPUPPCState *env, target_ulong address, > > } > > /* Perform address translation */ > > -static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > > - MMUAccessType access_type, int mmu_idx) > > +/* TODO: Split this by mmu_model. */ > > +static bool ppc_jumbo_xlate(PowerPCCPU *cpu, vaddr eaddr, > > + MMUAccessType access_type, > > + hwaddr *raddrp, int *psizep, int *protp, > > + int mmu_idx, bool guest_visible) > > { > > - CPUState *cs = env_cpu(env); > > - PowerPCCPU *cpu = POWERPC_CPU(cs); > > + CPUState *cs = CPU(cpu); > > + CPUPPCState *env = &cpu->env; > > mmu_ctx_t ctx; > > int type; > > - int ret = 0; > > + int ret; > > if (access_type == MMU_INST_FETCH) { > > /* code access */ > > type = ACCESS_CODE; > > - } else { > > + } else if (guest_visible) { > > /* data access */ > > type = env->access_type; > > + } else { > > + type = ACCESS_INT; > > } > > - ret = get_physical_address_wtlb(env, &ctx, address, access_type, > > + > > + ret = get_physical_address_wtlb(env, &ctx, eaddr, access_type, > > type, mmu_idx); > > if (ret == 0) { > > - tlb_set_page(cs, address & TARGET_PAGE_MASK, > > - ctx.raddr & TARGET_PAGE_MASK, ctx.prot, > > - mmu_idx, TARGET_PAGE_SIZE); > > - ret = 0; > > - } else if (ret < 0) { > > + *raddrp = ctx.raddr; > > + *protp = ctx.prot; > > + *psizep = TARGET_PAGE_BITS; > > + return true; > > + } > > + > > + if (guest_visible) { > > LOG_MMU_STATE(cs); > > if (type == ACCESS_CODE) { > > switch (ret) { > > @@ -1557,7 +1523,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > > case POWERPC_MMU_SOFT_6xx: > > cs->exception_index = POWERPC_EXCP_IFTLB; > > env->error_code = 1 << 18; > > - env->spr[SPR_IMISS] = address; > > + env->spr[SPR_IMISS] = eaddr; > > env->spr[SPR_ICMP] = 0x80000000 | ctx.ptem; > > goto tlb_miss; > > case POWERPC_MMU_SOFT_74xx: > > @@ -1567,29 +1533,25 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > > case POWERPC_MMU_SOFT_4xx_Z: > > cs->exception_index = POWERPC_EXCP_ITLB; > > env->error_code = 0; > > - env->spr[SPR_40x_DEAR] = address; > > + env->spr[SPR_40x_DEAR] = eaddr; > > env->spr[SPR_40x_ESR] = 0x00000000; > > break; > > case POWERPC_MMU_BOOKE206: > > - booke206_update_mas_tlb_miss(env, address, 2, mmu_idx); > > + booke206_update_mas_tlb_miss(env, eaddr, 2, mmu_idx); > > /* fall through */ > > case POWERPC_MMU_BOOKE: > > cs->exception_index = POWERPC_EXCP_ITLB; > > env->error_code = 0; > > - env->spr[SPR_BOOKE_DEAR] = address; > > + env->spr[SPR_BOOKE_DEAR] = eaddr; > > env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, MMU_DATA_LOAD); > > - return -1; > > - case POWERPC_MMU_MPC8xx: > > - /* XXX: TODO */ > > - cpu_abort(cs, "MPC8xx MMU model is not implemented\n"); > > break; > > + case POWERPC_MMU_MPC8xx: > > + cpu_abort(cs, "MPC8xx MMU model is not implemented\n"); > > case POWERPC_MMU_REAL: > > cpu_abort(cs, "PowerPC in real mode should never raise " > > "any MMU exceptions\n"); > > - return -1; > > default: > > cpu_abort(cs, "Unknown or invalid MMU model\n"); > > - return -1; > > } > > break; > > case -2: > > @@ -1626,7 +1588,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > > cs->exception_index = POWERPC_EXCP_DLTLB; > > env->error_code = 0; > > } > > - env->spr[SPR_DMISS] = address; > > + env->spr[SPR_DMISS] = eaddr; > > env->spr[SPR_DCMP] = 0x80000000 | ctx.ptem; > > tlb_miss: > > env->error_code |= ctx.key << 19; > > @@ -1644,7 +1606,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > > tlb_miss_74xx: > > /* Implement LRU algorithm */ > > env->error_code = ctx.key << 19; > > - env->spr[SPR_TLBMISS] = (address & ~((target_ulong)0x3)) | > > + env->spr[SPR_TLBMISS] = (eaddr & ~((target_ulong)0x3)) | > > ((env->last_way + 1) & (env->nb_ways - 1)); > > env->spr[SPR_PTEHI] = 0x80000000 | ctx.ptem; > > break; > > @@ -1652,7 +1614,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > > case POWERPC_MMU_SOFT_4xx_Z: > > cs->exception_index = POWERPC_EXCP_DTLB; > > env->error_code = 0; > > - env->spr[SPR_40x_DEAR] = address; > > + env->spr[SPR_40x_DEAR] = eaddr; > > if (access_type == MMU_DATA_STORE) { > > env->spr[SPR_40x_ESR] = 0x00800000; > > } else { > > @@ -1662,23 +1624,20 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > > case POWERPC_MMU_MPC8xx: > > /* XXX: TODO */ > > cpu_abort(cs, "MPC8xx MMU model is not implemented\n"); > > - break; > > case POWERPC_MMU_BOOKE206: > > - booke206_update_mas_tlb_miss(env, address, access_type, mmu_idx); > > + booke206_update_mas_tlb_miss(env, eaddr, access_type, mmu_idx); > > /* fall through */ > > case POWERPC_MMU_BOOKE: > > cs->exception_index = POWERPC_EXCP_DTLB; > > env->error_code = 0; > > - env->spr[SPR_BOOKE_DEAR] = address; > > + env->spr[SPR_BOOKE_DEAR] = eaddr; > > env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, access_type); > > - return -1; > > + break; > > case POWERPC_MMU_REAL: > > cpu_abort(cs, "PowerPC in real mode should never raise " > > "any MMU exceptions\n"); > > - return -1; > > default: > > cpu_abort(cs, "Unknown or invalid MMU model\n"); > > - return -1; > > } > > break; > > case -2: > > @@ -1687,16 +1646,16 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > > env->error_code = 0; > > if (env->mmu_model == POWERPC_MMU_SOFT_4xx > > || env->mmu_model == POWERPC_MMU_SOFT_4xx_Z) { > > - env->spr[SPR_40x_DEAR] = address; > > + env->spr[SPR_40x_DEAR] = eaddr; > > if (access_type == MMU_DATA_STORE) { > > env->spr[SPR_40x_ESR] |= 0x00800000; > > } > > } else if ((env->mmu_model == POWERPC_MMU_BOOKE) || > > (env->mmu_model == POWERPC_MMU_BOOKE206)) { > > - env->spr[SPR_BOOKE_DEAR] = address; > > + env->spr[SPR_BOOKE_DEAR] = eaddr; > > env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, access_type); > > } else { > > - env->spr[SPR_DAR] = address; > > + env->spr[SPR_DAR] = eaddr; > > if (access_type == MMU_DATA_STORE) { > > env->spr[SPR_DSISR] = 0x0A000000; > > } else { > > @@ -1711,13 +1670,13 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > > /* Floating point load/store */ > > cs->exception_index = POWERPC_EXCP_ALIGN; > > env->error_code = POWERPC_EXCP_ALIGN_FP; > > - env->spr[SPR_DAR] = address; > > + env->spr[SPR_DAR] = eaddr; > > break; > > case ACCESS_RES: > > /* lwarx, ldarx or stwcx. */ > > cs->exception_index = POWERPC_EXCP_DSI; > > env->error_code = 0; > > - env->spr[SPR_DAR] = address; > > + env->spr[SPR_DAR] = eaddr; > > if (access_type == MMU_DATA_STORE) { > > env->spr[SPR_DSISR] = 0x06000000; > > } else { > > @@ -1728,7 +1687,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > > /* eciwx or ecowx */ > > cs->exception_index = POWERPC_EXCP_DSI; > > env->error_code = 0; > > - env->spr[SPR_DAR] = address; > > + env->spr[SPR_DAR] = eaddr; > > if (access_type == MMU_DATA_STORE) { > > env->spr[SPR_DSISR] = 0x06100000; > > } else { > > @@ -1740,16 +1699,14 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, > > cs->exception_index = POWERPC_EXCP_PROGRAM; > > env->error_code = > > POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL; > > - env->spr[SPR_DAR] = address; > > + env->spr[SPR_DAR] = eaddr; > > break; > > } > > break; > > } > > } > > - ret = 1; > > } > > - > > - return ret; > > + return false; > > } > > /*****************************************************************************/ > > @@ -2958,6 +2915,62 @@ void helper_check_tlb_flush_global(CPUPPCState *env) > > /*****************************************************************************/ > > +static int cpu_ppc_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr, > > + MMUAccessType access_type, int mmu_idx) > > +{ > > + CPUState *cs = CPU(cpu); > > + int page_size, prot; > > + hwaddr raddr; > > + > > + if (!ppc_jumbo_xlate(cpu, eaddr, access_type, &raddr, > > + &page_size, &prot, mmu_idx, true)) { > > + return 1; > > + } > > + > > + tlb_set_page(cs, eaddr & TARGET_PAGE_MASK, raddr & TARGET_PAGE_MASK, > > + prot, mmu_idx, 1UL << page_size); > > + return 0; > > +} > > + > > +hwaddr ppc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) > > +{ > > + PowerPCCPU *cpu = POWERPC_CPU(cs); > > + CPUPPCState *env = &cpu->env; > > + hwaddr raddr; > > + int s, p; > > + > > + switch (env->mmu_model) { > > +#if defined(TARGET_PPC64) > > + case POWERPC_MMU_64B: > > + case POWERPC_MMU_2_03: > > + case POWERPC_MMU_2_06: > > + case POWERPC_MMU_2_07: > > + return ppc_hash64_get_phys_page_debug(cpu, addr); > > + case POWERPC_MMU_3_00: > > + return ppc64_v3_get_phys_page_debug(cpu, addr); > > +#endif > > + > > + case POWERPC_MMU_32B: > > + case POWERPC_MMU_601: > > + return ppc_hash32_get_phys_page_debug(cpu, addr); > > + > > + default: > > + ; > > + } > > + > > + /* > > + * Some MMUs have separate TLBs for code and data. If we only > > + * try an MMU_DATA_LOAD, we may not be able to read instructions > > + * mapped by code TLBs, so we also try a MMU_INST_FETCH. > > + */ > > + if (ppc_jumbo_xlate(cpu, addr, MMU_DATA_LOAD, &raddr, &s, &p, 0, false) || > > + ppc_jumbo_xlate(cpu, addr, MMU_INST_FETCH, &raddr, &s, &p, 0, false)) { > > + return raddr & TARGET_PAGE_MASK; > > + } > > + return -1; > > +} > > + > > + > > bool ppc_cpu_tlb_fill(CPUState *cs, vaddr addr, int size, > > MMUAccessType access_type, int mmu_idx, > > bool probe, uintptr_t retaddr) > > @@ -2985,7 +2998,7 @@ bool ppc_cpu_tlb_fill(CPUState *cs, vaddr addr, int size, > > break; > > default: > > - ret = cpu_ppc_handle_mmu_fault(env, addr, access_type, mmu_idx); > > + ret = cpu_ppc_handle_mmu_fault(cpu, addr, access_type, mmu_idx); > > break; > > } > > if (unlikely(ret != 0)) { -- David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_ | _way_ _around_! http://www.ozlabs.org/~dgibson
diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c index 863e556a22..68c2e59238 100644 --- a/target/ppc/mmu_helper.c +++ b/target/ppc/mmu_helper.c @@ -1427,48 +1427,6 @@ static int get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx, return get_physical_address_wtlb(env, ctx, eaddr, access_type, type, 0); } -hwaddr ppc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) -{ - PowerPCCPU *cpu = POWERPC_CPU(cs); - CPUPPCState *env = &cpu->env; - mmu_ctx_t ctx; - - switch (env->mmu_model) { -#if defined(TARGET_PPC64) - case POWERPC_MMU_64B: - case POWERPC_MMU_2_03: - case POWERPC_MMU_2_06: - case POWERPC_MMU_2_07: - return ppc_hash64_get_phys_page_debug(cpu, addr); - case POWERPC_MMU_3_00: - return ppc64_v3_get_phys_page_debug(cpu, addr); -#endif - - case POWERPC_MMU_32B: - case POWERPC_MMU_601: - return ppc_hash32_get_phys_page_debug(cpu, addr); - - default: - ; - } - - if (unlikely(get_physical_address(env, &ctx, addr, MMU_DATA_LOAD, - ACCESS_INT) != 0)) { - - /* - * Some MMUs have separate TLBs for code and data. If we only - * try an ACCESS_INT, we may not be able to read instructions - * mapped by code TLBs, so we also try a ACCESS_CODE. - */ - if (unlikely(get_physical_address(env, &ctx, addr, MMU_INST_FETCH, - ACCESS_CODE) != 0)) { - return -1; - } - } - - return ctx.raddr & TARGET_PAGE_MASK; -} - static void booke206_update_mas_tlb_miss(CPUPPCState *env, target_ulong address, MMUAccessType access_type, int mmu_idx) { @@ -1524,30 +1482,38 @@ static void booke206_update_mas_tlb_miss(CPUPPCState *env, target_ulong address, } /* Perform address translation */ -static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, - MMUAccessType access_type, int mmu_idx) +/* TODO: Split this by mmu_model. */ +static bool ppc_jumbo_xlate(PowerPCCPU *cpu, vaddr eaddr, + MMUAccessType access_type, + hwaddr *raddrp, int *psizep, int *protp, + int mmu_idx, bool guest_visible) { - CPUState *cs = env_cpu(env); - PowerPCCPU *cpu = POWERPC_CPU(cs); + CPUState *cs = CPU(cpu); + CPUPPCState *env = &cpu->env; mmu_ctx_t ctx; int type; - int ret = 0; + int ret; if (access_type == MMU_INST_FETCH) { /* code access */ type = ACCESS_CODE; - } else { + } else if (guest_visible) { /* data access */ type = env->access_type; + } else { + type = ACCESS_INT; } - ret = get_physical_address_wtlb(env, &ctx, address, access_type, + + ret = get_physical_address_wtlb(env, &ctx, eaddr, access_type, type, mmu_idx); if (ret == 0) { - tlb_set_page(cs, address & TARGET_PAGE_MASK, - ctx.raddr & TARGET_PAGE_MASK, ctx.prot, - mmu_idx, TARGET_PAGE_SIZE); - ret = 0; - } else if (ret < 0) { + *raddrp = ctx.raddr; + *protp = ctx.prot; + *psizep = TARGET_PAGE_BITS; + return true; + } + + if (guest_visible) { LOG_MMU_STATE(cs); if (type == ACCESS_CODE) { switch (ret) { @@ -1557,7 +1523,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, case POWERPC_MMU_SOFT_6xx: cs->exception_index = POWERPC_EXCP_IFTLB; env->error_code = 1 << 18; - env->spr[SPR_IMISS] = address; + env->spr[SPR_IMISS] = eaddr; env->spr[SPR_ICMP] = 0x80000000 | ctx.ptem; goto tlb_miss; case POWERPC_MMU_SOFT_74xx: @@ -1567,29 +1533,25 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, case POWERPC_MMU_SOFT_4xx_Z: cs->exception_index = POWERPC_EXCP_ITLB; env->error_code = 0; - env->spr[SPR_40x_DEAR] = address; + env->spr[SPR_40x_DEAR] = eaddr; env->spr[SPR_40x_ESR] = 0x00000000; break; case POWERPC_MMU_BOOKE206: - booke206_update_mas_tlb_miss(env, address, 2, mmu_idx); + booke206_update_mas_tlb_miss(env, eaddr, 2, mmu_idx); /* fall through */ case POWERPC_MMU_BOOKE: cs->exception_index = POWERPC_EXCP_ITLB; env->error_code = 0; - env->spr[SPR_BOOKE_DEAR] = address; + env->spr[SPR_BOOKE_DEAR] = eaddr; env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, MMU_DATA_LOAD); - return -1; - case POWERPC_MMU_MPC8xx: - /* XXX: TODO */ - cpu_abort(cs, "MPC8xx MMU model is not implemented\n"); break; + case POWERPC_MMU_MPC8xx: + cpu_abort(cs, "MPC8xx MMU model is not implemented\n"); case POWERPC_MMU_REAL: cpu_abort(cs, "PowerPC in real mode should never raise " "any MMU exceptions\n"); - return -1; default: cpu_abort(cs, "Unknown or invalid MMU model\n"); - return -1; } break; case -2: @@ -1626,7 +1588,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, cs->exception_index = POWERPC_EXCP_DLTLB; env->error_code = 0; } - env->spr[SPR_DMISS] = address; + env->spr[SPR_DMISS] = eaddr; env->spr[SPR_DCMP] = 0x80000000 | ctx.ptem; tlb_miss: env->error_code |= ctx.key << 19; @@ -1644,7 +1606,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, tlb_miss_74xx: /* Implement LRU algorithm */ env->error_code = ctx.key << 19; - env->spr[SPR_TLBMISS] = (address & ~((target_ulong)0x3)) | + env->spr[SPR_TLBMISS] = (eaddr & ~((target_ulong)0x3)) | ((env->last_way + 1) & (env->nb_ways - 1)); env->spr[SPR_PTEHI] = 0x80000000 | ctx.ptem; break; @@ -1652,7 +1614,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, case POWERPC_MMU_SOFT_4xx_Z: cs->exception_index = POWERPC_EXCP_DTLB; env->error_code = 0; - env->spr[SPR_40x_DEAR] = address; + env->spr[SPR_40x_DEAR] = eaddr; if (access_type == MMU_DATA_STORE) { env->spr[SPR_40x_ESR] = 0x00800000; } else { @@ -1662,23 +1624,20 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, case POWERPC_MMU_MPC8xx: /* XXX: TODO */ cpu_abort(cs, "MPC8xx MMU model is not implemented\n"); - break; case POWERPC_MMU_BOOKE206: - booke206_update_mas_tlb_miss(env, address, access_type, mmu_idx); + booke206_update_mas_tlb_miss(env, eaddr, access_type, mmu_idx); /* fall through */ case POWERPC_MMU_BOOKE: cs->exception_index = POWERPC_EXCP_DTLB; env->error_code = 0; - env->spr[SPR_BOOKE_DEAR] = address; + env->spr[SPR_BOOKE_DEAR] = eaddr; env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, access_type); - return -1; + break; case POWERPC_MMU_REAL: cpu_abort(cs, "PowerPC in real mode should never raise " "any MMU exceptions\n"); - return -1; default: cpu_abort(cs, "Unknown or invalid MMU model\n"); - return -1; } break; case -2: @@ -1687,16 +1646,16 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, env->error_code = 0; if (env->mmu_model == POWERPC_MMU_SOFT_4xx || env->mmu_model == POWERPC_MMU_SOFT_4xx_Z) { - env->spr[SPR_40x_DEAR] = address; + env->spr[SPR_40x_DEAR] = eaddr; if (access_type == MMU_DATA_STORE) { env->spr[SPR_40x_ESR] |= 0x00800000; } } else if ((env->mmu_model == POWERPC_MMU_BOOKE) || (env->mmu_model == POWERPC_MMU_BOOKE206)) { - env->spr[SPR_BOOKE_DEAR] = address; + env->spr[SPR_BOOKE_DEAR] = eaddr; env->spr[SPR_BOOKE_ESR] = mmubooke206_esr(mmu_idx, access_type); } else { - env->spr[SPR_DAR] = address; + env->spr[SPR_DAR] = eaddr; if (access_type == MMU_DATA_STORE) { env->spr[SPR_DSISR] = 0x0A000000; } else { @@ -1711,13 +1670,13 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, /* Floating point load/store */ cs->exception_index = POWERPC_EXCP_ALIGN; env->error_code = POWERPC_EXCP_ALIGN_FP; - env->spr[SPR_DAR] = address; + env->spr[SPR_DAR] = eaddr; break; case ACCESS_RES: /* lwarx, ldarx or stwcx. */ cs->exception_index = POWERPC_EXCP_DSI; env->error_code = 0; - env->spr[SPR_DAR] = address; + env->spr[SPR_DAR] = eaddr; if (access_type == MMU_DATA_STORE) { env->spr[SPR_DSISR] = 0x06000000; } else { @@ -1728,7 +1687,7 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, /* eciwx or ecowx */ cs->exception_index = POWERPC_EXCP_DSI; env->error_code = 0; - env->spr[SPR_DAR] = address; + env->spr[SPR_DAR] = eaddr; if (access_type == MMU_DATA_STORE) { env->spr[SPR_DSISR] = 0x06100000; } else { @@ -1740,16 +1699,14 @@ static int cpu_ppc_handle_mmu_fault(CPUPPCState *env, target_ulong address, cs->exception_index = POWERPC_EXCP_PROGRAM; env->error_code = POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL; - env->spr[SPR_DAR] = address; + env->spr[SPR_DAR] = eaddr; break; } break; } } - ret = 1; } - - return ret; + return false; } /*****************************************************************************/ @@ -2958,6 +2915,62 @@ void helper_check_tlb_flush_global(CPUPPCState *env) /*****************************************************************************/ +static int cpu_ppc_handle_mmu_fault(PowerPCCPU *cpu, vaddr eaddr, + MMUAccessType access_type, int mmu_idx) +{ + CPUState *cs = CPU(cpu); + int page_size, prot; + hwaddr raddr; + + if (!ppc_jumbo_xlate(cpu, eaddr, access_type, &raddr, + &page_size, &prot, mmu_idx, true)) { + return 1; + } + + tlb_set_page(cs, eaddr & TARGET_PAGE_MASK, raddr & TARGET_PAGE_MASK, + prot, mmu_idx, 1UL << page_size); + return 0; +} + +hwaddr ppc_cpu_get_phys_page_debug(CPUState *cs, vaddr addr) +{ + PowerPCCPU *cpu = POWERPC_CPU(cs); + CPUPPCState *env = &cpu->env; + hwaddr raddr; + int s, p; + + switch (env->mmu_model) { +#if defined(TARGET_PPC64) + case POWERPC_MMU_64B: + case POWERPC_MMU_2_03: + case POWERPC_MMU_2_06: + case POWERPC_MMU_2_07: + return ppc_hash64_get_phys_page_debug(cpu, addr); + case POWERPC_MMU_3_00: + return ppc64_v3_get_phys_page_debug(cpu, addr); +#endif + + case POWERPC_MMU_32B: + case POWERPC_MMU_601: + return ppc_hash32_get_phys_page_debug(cpu, addr); + + default: + ; + } + + /* + * Some MMUs have separate TLBs for code and data. If we only + * try an MMU_DATA_LOAD, we may not be able to read instructions + * mapped by code TLBs, so we also try a MMU_INST_FETCH. + */ + if (ppc_jumbo_xlate(cpu, addr, MMU_DATA_LOAD, &raddr, &s, &p, 0, false) || + ppc_jumbo_xlate(cpu, addr, MMU_INST_FETCH, &raddr, &s, &p, 0, false)) { + return raddr & TARGET_PAGE_MASK; + } + return -1; +} + + bool ppc_cpu_tlb_fill(CPUState *cs, vaddr addr, int size, MMUAccessType access_type, int mmu_idx, bool probe, uintptr_t retaddr) @@ -2985,7 +2998,7 @@ bool ppc_cpu_tlb_fill(CPUState *cs, vaddr addr, int size, break; default: - ret = cpu_ppc_handle_mmu_fault(env, addr, access_type, mmu_idx); + ret = cpu_ppc_handle_mmu_fault(cpu, addr, access_type, mmu_idx); break; } if (unlikely(ret != 0)) {
Mirror the interface of ppc_radix64_xlate (mostly), putting all of the logic for older mmu translation into a single entry point. For booke, we need to add mmu_idx to the xlate-style interface. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> --- target/ppc/mmu_helper.c | 181 +++++++++++++++++++++------------------- 1 file changed, 97 insertions(+), 84 deletions(-) -- 2.25.1