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Thu, 25 Jul 2024 16:59:32 -0700 (PDT) Received: from wheely.local0.net ([203.220.44.216]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2cf28c7fef3sm2142060a91.16.2024.07.25.16.59.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 25 Jul 2024 16:59:32 -0700 (PDT) From: Nicholas Piggin To: qemu-devel@nongnu.org Cc: Nicholas Piggin , qemu-ppc@nongnu.org, BALATON Zoltan Subject: [PULL 89/96] target/ppc: Remove bat_size_prot() Date: Fri, 26 Jul 2024 09:54:02 +1000 Message-ID: <20240725235410.451624-90-npiggin@gmail.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240725235410.451624-1-npiggin@gmail.com> References: <20240725235410.451624-1-npiggin@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::1035; envelope-from=npiggin@gmail.com; helo=mail-pj1-x1035.google.com 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, FREEMAIL_FROM=0.001, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org From: BALATON Zoltan There is already a hash32_bat_prot() function that does most if this and the rest can be inlined. Export hash32_bat_prot() and rename it to ppc_hash32_bat_prot() to match other functions and use it in get_bat_6xx_tlb(). Signed-off-by: BALATON Zoltan Reviewed-by: Nicholas Piggin Signed-off-by: Nicholas Piggin --- target/ppc/mmu-hash32.c | 18 +------------- target/ppc/mmu-hash32.h | 14 +++++++++++ target/ppc/mmu_common.c | 52 ++++++++++------------------------------- 3 files changed, 27 insertions(+), 57 deletions(-) diff --git a/target/ppc/mmu-hash32.c b/target/ppc/mmu-hash32.c index 160311de87..6f0f0bbb00 100644 --- a/target/ppc/mmu-hash32.c +++ b/target/ppc/mmu-hash32.c @@ -48,22 +48,6 @@ static target_ulong hash32_bat_size(int mmu_idx, return BATU32_BEPI & ~((batu & BATU32_BL) << 15); } -static int hash32_bat_prot(PowerPCCPU *cpu, - target_ulong batu, target_ulong batl) -{ - int pp, prot; - - prot = 0; - pp = batl & BATL32_PP; - if (pp != 0) { - prot = PAGE_READ | PAGE_EXEC; - if (pp == 0x2) { - prot |= PAGE_WRITE; - } - } - return prot; -} - static hwaddr ppc_hash32_bat_lookup(PowerPCCPU *cpu, target_ulong ea, MMUAccessType access_type, int *prot, int mmu_idx) @@ -95,7 +79,7 @@ static hwaddr ppc_hash32_bat_lookup(PowerPCCPU *cpu, target_ulong ea, if (mask && ((ea & mask) == (batu & BATU32_BEPI))) { hwaddr raddr = (batl & mask) | (ea & ~mask); - *prot = hash32_bat_prot(cpu, batu, batl); + *prot = ppc_hash32_bat_prot(batu, batl); return raddr & TARGET_PAGE_MASK; } diff --git a/target/ppc/mmu-hash32.h b/target/ppc/mmu-hash32.h index 5902cf8333..bd75f7d647 100644 --- a/target/ppc/mmu-hash32.h +++ b/target/ppc/mmu-hash32.h @@ -143,6 +143,20 @@ static inline int ppc_hash32_prot(bool key, int pp, bool nx) return nx ? prot : prot | PAGE_EXEC; } +static inline int ppc_hash32_bat_prot(target_ulong batu, target_ulong batl) +{ + int prot = 0; + int pp = batl & BATL32_PP; + + if (pp) { + prot = PAGE_READ | PAGE_EXEC; + if (pp == 0x2) { + prot |= PAGE_WRITE; + } + } + return prot; +} + typedef struct { uint32_t pte0, pte1; } ppc_hash_pte32_t; diff --git a/target/ppc/mmu_common.c b/target/ppc/mmu_common.c index aa002bba35..624ed51a92 100644 --- a/target/ppc/mmu_common.c +++ b/target/ppc/mmu_common.c @@ -193,40 +193,13 @@ static int ppc6xx_tlb_check(CPUPPCState *env, hwaddr *raddr, int *prot, return ret; } -/* Perform BAT hit & translation */ -static inline void bat_size_prot(CPUPPCState *env, target_ulong *blp, - int *validp, int *protp, target_ulong *BATu, - target_ulong *BATl) -{ - target_ulong bl; - int pp, valid, prot; - - bl = (*BATu & BATU32_BL) << 15; - valid = 0; - prot = 0; - if ((!FIELD_EX64(env->msr, MSR, PR) && (*BATu & 0x00000002)) || - (FIELD_EX64(env->msr, MSR, PR) && (*BATu & 0x00000001))) { - valid = 1; - pp = *BATl & 0x00000003; - if (pp != 0) { - prot = PAGE_READ | PAGE_EXEC; - if (pp == 0x2) { - prot |= PAGE_WRITE; - } - } - } - *blp = bl; - *validp = valid; - *protp = prot; -} - static int get_bat_6xx_tlb(CPUPPCState *env, mmu_ctx_t *ctx, - target_ulong eaddr, MMUAccessType access_type) + target_ulong eaddr, MMUAccessType access_type, + bool pr) { target_ulong *BATlt, *BATut, *BATu, *BATl; target_ulong BEPIl, BEPIu, bl; - int i, valid, prot; - int ret = -1; + int i, ret = -1; bool ifetch = access_type == MMU_INST_FETCH; qemu_log_mask(CPU_LOG_MMU, "%s: %cBAT v " TARGET_FMT_lx "\n", __func__, @@ -243,20 +216,19 @@ static int get_bat_6xx_tlb(CPUPPCState *env, mmu_ctx_t *ctx, BATl = &BATlt[i]; BEPIu = *BATu & BATU32_BEPIU; BEPIl = *BATu & BATU32_BEPIL; - bat_size_prot(env, &bl, &valid, &prot, BATu, BATl); qemu_log_mask(CPU_LOG_MMU, "%s: %cBAT%d v " TARGET_FMT_lx " BATu " TARGET_FMT_lx " BATl " TARGET_FMT_lx "\n", __func__, ifetch ? 'I' : 'D', i, eaddr, *BATu, *BATl); - if ((eaddr & BATU32_BEPIU) == BEPIu && - ((eaddr & BATU32_BEPIL) & ~bl) == BEPIl) { - /* BAT matches */ - if (valid != 0) { + bl = (*BATu & BATU32_BL) << 15; + if ((!pr && (*BATu & BATU32_VS)) || (pr && (*BATu & BATU32_VP))) { + if ((eaddr & BATU32_BEPIU) == BEPIu && + ((eaddr & BATU32_BEPIL) & ~bl) == BEPIl) { /* Get physical address */ ctx->raddr = (*BATl & BATU32_BEPIU) | ((eaddr & BATU32_BEPIL & bl) | (*BATl & BATU32_BEPIL)) | (eaddr & 0x0001F000); /* Compute access rights */ - ctx->prot = prot; + ctx->prot = ppc_hash32_bat_prot(*BATu, *BATl); if (check_prot_access_type(ctx->prot, access_type)) { qemu_log_mask(CPU_LOG_MMU, "BAT %d match: r " HWADDR_FMT_plx " prot=%c%c\n", i, ctx->raddr, @@ -300,16 +272,16 @@ static int mmu6xx_get_physical_address(CPUPPCState *env, mmu_ctx_t *ctx, PowerPCCPU *cpu = env_archcpu(env); hwaddr hash; target_ulong vsid, sr, pgidx, ptem; - bool key, pr, ds, nx; + bool key, ds, nx; + bool pr = FIELD_EX64(env->msr, MSR, PR); /* First try to find a BAT entry if there are any */ - if (env->nb_BATs && get_bat_6xx_tlb(env, ctx, eaddr, access_type) == 0) { + if (env->nb_BATs && + get_bat_6xx_tlb(env, ctx, eaddr, access_type, pr) == 0) { return 0; } /* Perform segment based translation when no BATs matched */ - pr = FIELD_EX64(env->msr, MSR, PR); - sr = env->sr[eaddr >> 28]; key = ppc_hash32_key(pr, sr); *keyp = key;