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[216.228.167.147]) by smtp.gmail.com with ESMTPSA id k4sm16074pgr.87.2020.08.25.13.59.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Aug 2020 13:59:59 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH 06/77] target/microblaze: Split out MSR from env->sregs Date: Tue, 25 Aug 2020 13:58:39 -0700 Message-Id: <20200825205950.730499-7-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200825205950.730499-1-richard.henderson@linaro.org> References: <20200825205950.730499-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::542; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x542.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: edgar.iglesias@gmail.com Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" Continue eliminating the sregs array in favor of individual members. Does not correct the width of MSR, yet. Signed-off-by: Richard Henderson --- target/microblaze/cpu.h | 7 ++--- target/microblaze/cpu.c | 4 +-- target/microblaze/gdbstub.c | 4 +-- target/microblaze/helper.c | 49 +++++++++++++++++------------------ target/microblaze/op_helper.c | 22 ++++++++-------- target/microblaze/translate.c | 14 +++++----- 6 files changed, 51 insertions(+), 49 deletions(-) -- 2.25.1 diff --git a/target/microblaze/cpu.h b/target/microblaze/cpu.h index d1f91bb318..36de61d9f9 100644 --- a/target/microblaze/cpu.h +++ b/target/microblaze/cpu.h @@ -237,6 +237,7 @@ struct CPUMBState { uint32_t imm; uint32_t regs[32]; uint64_t pc; + uint64_t msr; uint64_t sregs[14]; float_status fp_status; /* Stack protectors. Yes, it's a hw feature. */ @@ -355,7 +356,7 @@ static inline void cpu_get_tb_cpu_state(CPUMBState *env, target_ulong *pc, *pc = env->pc; *cs_base = 0; *flags = (env->iflags & IFLAGS_TB_MASK) | - (env->sregs[SR_MSR] & (MSR_UM | MSR_VM | MSR_EE)); + (env->msr & (MSR_UM | MSR_VM | MSR_EE)); } #if !defined(CONFIG_USER_ONLY) @@ -370,11 +371,11 @@ static inline int cpu_mmu_index(CPUMBState *env, bool ifetch) MicroBlazeCPU *cpu = env_archcpu(env); /* Are we in nommu mode?. */ - if (!(env->sregs[SR_MSR] & MSR_VM) || !cpu->cfg.use_mmu) { + if (!(env->msr & MSR_VM) || !cpu->cfg.use_mmu) { return MMU_NOMMU_IDX; } - if (env->sregs[SR_MSR] & MSR_UM) { + if (env->msr & MSR_UM) { return MMU_USER_IDX; } return MMU_KERNEL_IDX; diff --git a/target/microblaze/cpu.c b/target/microblaze/cpu.c index bde9992535..0eac068570 100644 --- a/target/microblaze/cpu.c +++ b/target/microblaze/cpu.c @@ -121,9 +121,9 @@ static void mb_cpu_reset(DeviceState *dev) #if defined(CONFIG_USER_ONLY) /* start in user mode with interrupts enabled. */ - env->sregs[SR_MSR] = MSR_EE | MSR_IE | MSR_VM | MSR_UM; + env->msr = MSR_EE | MSR_IE | MSR_VM | MSR_UM; #else - env->sregs[SR_MSR] = 0; + env->msr = 0; mmu_init(&env->mmu); env->mmu.c_mmu = 3; env->mmu.c_mmu_tlb_access = 3; diff --git a/target/microblaze/gdbstub.c b/target/microblaze/gdbstub.c index 9ea31f8d2f..e4c4936a7a 100644 --- a/target/microblaze/gdbstub.c +++ b/target/microblaze/gdbstub.c @@ -62,7 +62,7 @@ int mb_cpu_gdb_read_register(CPUState *cs, GByteArray *mem_buf, int n) val = env->pc; break; case GDB_MSR: - val = env->sregs[SR_MSR]; + val = env->msr; break; case GDB_EAR: val = env->sregs[SR_EAR]; @@ -118,7 +118,7 @@ int mb_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n) env->pc = tmp; break; case GDB_MSR: - env->sregs[SR_MSR] = tmp; + env->msr = tmp; break; case GDB_EAR: env->sregs[SR_EAR] = tmp; diff --git a/target/microblaze/helper.c b/target/microblaze/helper.c index 5c392deea4..a18314540f 100644 --- a/target/microblaze/helper.c +++ b/target/microblaze/helper.c @@ -117,7 +117,7 @@ void mb_cpu_do_interrupt(CPUState *cs) /* IMM flag cannot propagate across a branch and into the dslot. */ assert(!((env->iflags & D_FLAG) && (env->iflags & IMM_FLAG))); assert(!(env->iflags & (DRTI_FLAG | DRTE_FLAG | DRTB_FLAG))); -/* assert(env->sregs[SR_MSR] & (MSR_EE)); Only for HW exceptions. */ +/* assert(env->msr & (MSR_EE)); Only for HW exceptions. */ env->res_addr = RES_ADDR_NONE; switch (cs->exception_index) { case EXCP_HW_EXCP: @@ -136,11 +136,11 @@ void mb_cpu_do_interrupt(CPUState *cs) } /* Disable the MMU. */ - t = (env->sregs[SR_MSR] & (MSR_VM | MSR_UM)) << 1; - env->sregs[SR_MSR] &= ~(MSR_VMS | MSR_UMS | MSR_VM | MSR_UM); - env->sregs[SR_MSR] |= t; + t = (env->msr & (MSR_VM | MSR_UM)) << 1; + env->msr &= ~(MSR_VMS | MSR_UMS | MSR_VM | MSR_UM); + env->msr |= t; /* Exception in progress. */ - env->sregs[SR_MSR] |= MSR_EIP; + env->msr |= MSR_EIP; qemu_log_mask(CPU_LOG_INT, "hw exception at pc=%" PRIx64 " ear=%" PRIx64 " " @@ -179,11 +179,11 @@ void mb_cpu_do_interrupt(CPUState *cs) } /* Disable the MMU. */ - t = (env->sregs[SR_MSR] & (MSR_VM | MSR_UM)) << 1; - env->sregs[SR_MSR] &= ~(MSR_VMS | MSR_UMS | MSR_VM | MSR_UM); - env->sregs[SR_MSR] |= t; + t = (env->msr & (MSR_VM | MSR_UM)) << 1; + env->msr &= ~(MSR_VMS | MSR_UMS | MSR_VM | MSR_UM); + env->msr |= t; /* Exception in progress. */ - env->sregs[SR_MSR] |= MSR_EIP; + env->msr |= MSR_EIP; qemu_log_mask(CPU_LOG_INT, "exception at pc=%" PRIx64 " ear=%" PRIx64 " " @@ -195,11 +195,11 @@ void mb_cpu_do_interrupt(CPUState *cs) break; case EXCP_IRQ: - assert(!(env->sregs[SR_MSR] & (MSR_EIP | MSR_BIP))); - assert(env->sregs[SR_MSR] & MSR_IE); + assert(!(env->msr & (MSR_EIP | MSR_BIP))); + assert(env->msr & MSR_IE); assert(!(env->iflags & D_FLAG)); - t = (env->sregs[SR_MSR] & (MSR_VM | MSR_UM)) << 1; + t = (env->msr & (MSR_VM | MSR_UM)) << 1; #if 0 #include "disas/disas.h" @@ -216,7 +216,7 @@ void mb_cpu_do_interrupt(CPUState *cs) qemu_log( "interrupt at pc=%x msr=%x %x iflags=%x sym=%s\n", - env->pc, env->sregs[SR_MSR], t, env->iflags, + env->pc, env->msr, t, env->iflags, sym); log_cpu_state(cs, 0); @@ -226,11 +226,10 @@ void mb_cpu_do_interrupt(CPUState *cs) qemu_log_mask(CPU_LOG_INT, "interrupt at pc=%" PRIx64 " msr=%" PRIx64 " %x " "iflags=%x\n", - env->pc, env->sregs[SR_MSR], t, env->iflags); + env->pc, env->msr, t, env->iflags); - env->sregs[SR_MSR] &= ~(MSR_VMS | MSR_UMS | MSR_VM \ - | MSR_UM | MSR_IE); - env->sregs[SR_MSR] |= t; + env->msr &= ~(MSR_VMS | MSR_UMS | MSR_VM | MSR_UM | MSR_IE); + env->msr |= t; env->regs[14] = env->pc; env->pc = cpu->cfg.base_vectors + 0x10; @@ -241,18 +240,18 @@ void mb_cpu_do_interrupt(CPUState *cs) case EXCP_HW_BREAK: assert(!(env->iflags & IMM_FLAG)); assert(!(env->iflags & D_FLAG)); - t = (env->sregs[SR_MSR] & (MSR_VM | MSR_UM)) << 1; + t = (env->msr & (MSR_VM | MSR_UM)) << 1; qemu_log_mask(CPU_LOG_INT, "break at pc=%" PRIx64 " msr=%" PRIx64 " %x " "iflags=%x\n", - env->pc, env->sregs[SR_MSR], t, env->iflags); + env->pc, env->msr, t, env->iflags); log_cpu_state_mask(CPU_LOG_INT, cs, 0); - env->sregs[SR_MSR] &= ~(MSR_VMS | MSR_UMS | MSR_VM | MSR_UM); - env->sregs[SR_MSR] |= t; - env->sregs[SR_MSR] |= MSR_BIP; + env->msr &= ~(MSR_VMS | MSR_UMS | MSR_VM | MSR_UM); + env->msr |= t; + env->msr |= MSR_BIP; if (cs->exception_index == EXCP_HW_BREAK) { env->regs[16] = env->pc; - env->sregs[SR_MSR] |= MSR_BIP; + env->msr |= MSR_BIP; env->pc = cpu->cfg.base_vectors + 0x18; } else env->pc = env->btarget; @@ -293,8 +292,8 @@ bool mb_cpu_exec_interrupt(CPUState *cs, int interrupt_request) CPUMBState *env = &cpu->env; if ((interrupt_request & CPU_INTERRUPT_HARD) - && (env->sregs[SR_MSR] & MSR_IE) - && !(env->sregs[SR_MSR] & (MSR_EIP | MSR_BIP)) + && (env->msr & MSR_IE) + && !(env->msr & (MSR_EIP | MSR_BIP)) && !(env->iflags & (D_FLAG | IMM_FLAG))) { cs->exception_index = EXCP_IRQ; mb_cpu_do_interrupt(cs); diff --git a/target/microblaze/op_helper.c b/target/microblaze/op_helper.c index 2deef32740..3668382d36 100644 --- a/target/microblaze/op_helper.c +++ b/target/microblaze/op_helper.c @@ -78,14 +78,14 @@ void helper_debug(CPUMBState *env) qemu_log("PC=%" PRIx64 "\n", env->pc); qemu_log("rmsr=%" PRIx64 " resr=%" PRIx64 " rear=%" PRIx64 " " "debug[%x] imm=%x iflags=%x\n", - env->sregs[SR_MSR], env->sregs[SR_ESR], env->sregs[SR_EAR], + env->msr, env->sregs[SR_ESR], env->sregs[SR_EAR], env->debug, env->imm, env->iflags); qemu_log("btaken=%d btarget=%" PRIx64 " mode=%s(saved=%s) eip=%d ie=%d\n", env->btaken, env->btarget, - (env->sregs[SR_MSR] & MSR_UM) ? "user" : "kernel", - (env->sregs[SR_MSR] & MSR_UMS) ? "user" : "kernel", - (bool)(env->sregs[SR_MSR] & MSR_EIP), - (bool)(env->sregs[SR_MSR] & MSR_IE)); + (env->msr & MSR_UM) ? "user" : "kernel", + (env->msr & MSR_UMS) ? "user" : "kernel", + (bool)(env->msr & MSR_EIP), + (bool)(env->msr & MSR_IE)); for (i = 0; i < 32; i++) { qemu_log("r%2.2d=%8.8x ", i, env->regs[i]); if ((i + 1) % 4 == 0) @@ -135,15 +135,15 @@ static inline int div_prepare(CPUMBState *env, uint32_t a, uint32_t b) MicroBlazeCPU *cpu = env_archcpu(env); if (b == 0) { - env->sregs[SR_MSR] |= MSR_DZ; + env->msr |= MSR_DZ; - if ((env->sregs[SR_MSR] & MSR_EE) && cpu->cfg.div_zero_exception) { + if ((env->msr & MSR_EE) && cpu->cfg.div_zero_exception) { env->sregs[SR_ESR] = ESR_EC_DIVZERO; helper_raise_exception(env, EXCP_HW_EXCP); } return 0; } - env->sregs[SR_MSR] &= ~MSR_DZ; + env->msr &= ~MSR_DZ; return 1; } @@ -192,7 +192,7 @@ static void update_fpu_flags(CPUMBState *env, int flags) } if (raise && (env->pvr.regs[2] & PVR2_FPU_EXC_MASK) - && (env->sregs[SR_MSR] & MSR_EE)) { + && (env->msr & MSR_EE)) { raise_fpu_exception(env); } } @@ -437,7 +437,7 @@ void helper_memalign(CPUMBState *env, target_ulong addr, if (mask == 3) { env->sregs[SR_ESR] |= 1 << 11; } - if (!(env->sregs[SR_MSR] & MSR_EE)) { + if (!(env->msr & MSR_EE)) { return; } helper_raise_exception(env, EXCP_HW_EXCP); @@ -484,7 +484,7 @@ void mb_cpu_transaction_failed(CPUState *cs, hwaddr physaddr, vaddr addr, env = &cpu->env; cpu_restore_state(cs, retaddr, true); - if (!(env->sregs[SR_MSR] & MSR_EE)) { + if (!(env->msr & MSR_EE)) { return; } diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c index 9f6815cc1f..9f2dcd82cd 100644 --- a/target/microblaze/translate.c +++ b/target/microblaze/translate.c @@ -1809,16 +1809,16 @@ void mb_cpu_dump_state(CPUState *cs, FILE *f, int flags) qemu_fprintf(f, "rmsr=%" PRIx64 " resr=%" PRIx64 " rear=%" PRIx64 " " "debug=%x imm=%x iflags=%x fsr=%" PRIx64 " " "rbtr=%" PRIx64 "\n", - env->sregs[SR_MSR], env->sregs[SR_ESR], env->sregs[SR_EAR], + env->msr, env->sregs[SR_ESR], env->sregs[SR_EAR], env->debug, env->imm, env->iflags, env->sregs[SR_FSR], env->sregs[SR_BTR]); qemu_fprintf(f, "btaken=%d btarget=%" PRIx64 " mode=%s(saved=%s) " "eip=%d ie=%d\n", env->btaken, env->btarget, - (env->sregs[SR_MSR] & MSR_UM) ? "user" : "kernel", - (env->sregs[SR_MSR] & MSR_UMS) ? "user" : "kernel", - (bool)(env->sregs[SR_MSR] & MSR_EIP), - (bool)(env->sregs[SR_MSR] & MSR_IE)); + (env->msr & MSR_UM) ? "user" : "kernel", + (env->msr & MSR_UMS) ? "user" : "kernel", + (bool)(env->msr & MSR_EIP), + (bool)(env->msr & MSR_IE)); for (i = 0; i < 12; i++) { qemu_fprintf(f, "rpvr%2.2d=%8.8x ", i, env->pvr.regs[i]); if ((i + 1) % 4 == 0) { @@ -1871,8 +1871,10 @@ void mb_tcg_init(void) cpu_SR[SR_PC] = tcg_global_mem_new_i64(cpu_env, offsetof(CPUMBState, pc), "rpc"); + cpu_SR[SR_MSR] = + tcg_global_mem_new_i64(cpu_env, offsetof(CPUMBState, msr), "rmsr"); - for (i = 1; i < ARRAY_SIZE(cpu_SR); i++) { + for (i = SR_MSR + 1; i < ARRAY_SIZE(cpu_SR); i++) { cpu_SR[i] = tcg_global_mem_new_i64(cpu_env, offsetof(CPUMBState, sregs[i]), special_regnames[i]);