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[110.175.65.7]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-682227f1838sm87041a12.46.2024.05.23.16.10.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 23 May 2024 16:10:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1716505819; x=1717110619; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=+EaHAd1VEjGNrQj/hLueMBN/H6aC/VxSDZI3s/nISqI=; b=TeT9MTxBL6OKZUtjOgGEE6oYu9mecNhioyvDJjJwHT9TpxDwOacT0Av/wRyUcOxOgv mGTXY1w7qSgp23umSvHI+lvQctdrfBgeBDRu5sqwpFJdtLWLPC5t8AyJ5Pw7Xqc27KoB 5Qe7vZacjziId2sbCkezEqyDHqFLiY+dIxPrSDPj6TKpvYXzgwttH6Enx+94UMA+rCmW dCN3f56HhVWGP9JOJII9fxUjwlZUukIaFBr96auLcHu1B8z5yR04+b72nHThCoi9P9pn E6MIaaQzfnd6k3zkhBcqHiIYL5g1mrxDv1u//Tnubfdng3+l4qc51dYMB2B/xYJI+o14 SlSw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1716505819; x=1717110619; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=+EaHAd1VEjGNrQj/hLueMBN/H6aC/VxSDZI3s/nISqI=; b=fAkHteP/nioxzzq4BoWpAIL4Y4BL37hsem0AQYJGjdJJ6A0OhCu2A5aX+6eKczwWM7 Xr8GVBfzxRAgyIUEJ87ydUlJaFEwRLenbr2ftdbDWqJyY4oTbXb/Nc5tX8GqbzNKuoWm zVm0JpMLBJk8l4rqF4XnxtlvK2Mz/sosAH9Twb590YQCP0pSsheKpuwEKLbNQyRvthSe qYGY1ECH7Jrc7D/5JyIRgl3wYIJYTqTn+VuwIZnu+4Cr4wPBqzyBhOyp3NB2AhjIQ1JJ /nQsKhmWQYi6Q23J7DjgPctKiAiSjIYrlNtjT40hsoGbcHjo2HkXYf+ZGawobU6PUvwZ MpPA== X-Forwarded-Encrypted: i=1; AJvYcCXzQCi82XOicJXXNsBHE3FMfwgJNuh5Q41lK7w8CLuaKnrqu5VFrDfQ29o/oRJSVR8nQsSIH2EyA1647cYDNoXQj19h X-Gm-Message-State: AOJu0YwXGq2JwriR2ciiK1JUWrvmAFVOimiJLNbEIbOwTiIoSvGz8x+3 hSwxk2zfsovefcwpEVVYmSsMkH64YcWUar/gw4IUw5xtMVzUrs4FzM8SCg== X-Google-Smtp-Source: AGHT+IG3XPiBjXTdOau+XFqZmwzf+j9tFNm9b4AOklbMxsJgeh7FCGcwpAPIuLRKmZQKA9OTOhiwRA== X-Received: by 2002:a05:6a21:6d81:b0:1af:cd4a:212a with SMTP id adf61e73a8af0-1b212cbcee3mr1230933637.1.1716505819042; Thu, 23 May 2024 16:10:19 -0700 (PDT) From: Nicholas Piggin To: qemu-devel@nongnu.org Cc: Nicholas Piggin , qemu-ppc@nongnu.org, BALATON Zoltan Subject: [PULL 46/72] target/ppc/mmu_common.c: Move else branch to avoid large if block Date: Fri, 24 May 2024 09:07:19 +1000 Message-ID: <20240523230747.45703-47-npiggin@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240523230747.45703-1-npiggin@gmail.com> References: <20240523230747.45703-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::430; envelope-from=npiggin@gmail.com; helo=mail-pf1-x430.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1716506587593100003 Content-Type: text/plain; charset="utf-8" From: BALATON Zoltan In mmu6xx_get_physical_address() we have a large if block with a two line else branch that effectively returns. Invert the condition and move the else there to allow deindenting the large if block to make the flow easier to follow. Reviewed-by: Nicholas Piggin Signed-off-by: BALATON Zoltan Signed-off-by: Nicholas Piggin --- target/ppc/mmu_common.c | 71 ++++++++++++++++++++--------------------- 1 file changed, 34 insertions(+), 37 deletions(-) diff --git a/target/ppc/mmu_common.c b/target/ppc/mmu_common.c index b7c07cf515..ba60b4902b 100644 --- a/target/ppc/mmu_common.c +++ b/target/ppc/mmu_common.c @@ -405,47 +405,44 @@ static int mmu6xx_get_physical_address(CPUPPCState *e= nv, mmu_ctx_t *ctx, ret =3D -1; if (!ds) { /* Check if instruction fetch is allowed, if needed */ - if (type !=3D ACCESS_CODE || ctx->nx =3D=3D 0) { - /* Page address translation */ - qemu_log_mask(CPU_LOG_MMU, "htab_base " HWADDR_FMT_plx - " htab_mask " HWADDR_FMT_plx - " hash " HWADDR_FMT_plx "\n", - ppc_hash32_hpt_base(cpu), ppc_hash32_hpt_mask(cpu), ha= sh); - ctx->hash[0] =3D hash; - ctx->hash[1] =3D ~hash; - - /* Initialize real address with an invalid value */ - ctx->raddr =3D (hwaddr)-1ULL; - /* Software TLB search */ - ret =3D ppc6xx_tlb_check(env, ctx, eaddr, access_type); + if (type =3D=3D ACCESS_CODE && ctx->nx) { + qemu_log_mask(CPU_LOG_MMU, "No access allowed\n"); + return -3; + } + /* Page address translation */ + qemu_log_mask(CPU_LOG_MMU, "htab_base " HWADDR_FMT_plx " htab_mask= " + HWADDR_FMT_plx " hash " HWADDR_FMT_plx "\n", + ppc_hash32_hpt_base(cpu), ppc_hash32_hpt_mask(cpu), = hash); + ctx->hash[0] =3D hash; + ctx->hash[1] =3D ~hash; + + /* Initialize real address with an invalid value */ + ctx->raddr =3D (hwaddr)-1ULL; + /* Software TLB search */ + ret =3D ppc6xx_tlb_check(env, ctx, eaddr, access_type); #if defined(DUMP_PAGE_TABLES) - if (qemu_loglevel_mask(CPU_LOG_MMU)) { - CPUState *cs =3D env_cpu(env); - hwaddr curaddr; - uint32_t a0, a1, a2, a3; - - qemu_log("Page table: " HWADDR_FMT_plx " len " HWADDR_FMT_= plx - "\n", ppc_hash32_hpt_base(cpu), - ppc_hash32_hpt_mask(cpu) + 0x80); - for (curaddr =3D ppc_hash32_hpt_base(cpu); - curaddr < (ppc_hash32_hpt_base(cpu) - + ppc_hash32_hpt_mask(cpu) + 0x80); - curaddr +=3D 16) { - a0 =3D ldl_phys(cs->as, curaddr); - a1 =3D ldl_phys(cs->as, curaddr + 4); - a2 =3D ldl_phys(cs->as, curaddr + 8); - a3 =3D ldl_phys(cs->as, curaddr + 12); - if (a0 !=3D 0 || a1 !=3D 0 || a2 !=3D 0 || a3 !=3D 0) { - qemu_log(HWADDR_FMT_plx ": %08x %08x %08x %08x\n", - curaddr, a0, a1, a2, a3); - } + if (qemu_loglevel_mask(CPU_LOG_MMU)) { + CPUState *cs =3D env_cpu(env); + hwaddr curaddr; + uint32_t a0, a1, a2, a3; + + qemu_log("Page table: " HWADDR_FMT_plx " len " HWADDR_FMT_plx = "\n", + ppc_hash32_hpt_base(cpu), ppc_hash32_hpt_mask(cpu) + = 0x80); + for (curaddr =3D ppc_hash32_hpt_base(cpu); + curaddr < (ppc_hash32_hpt_base(cpu) + + ppc_hash32_hpt_mask(cpu) + 0x80); + curaddr +=3D 16) { + a0 =3D ldl_phys(cs->as, curaddr); + a1 =3D ldl_phys(cs->as, curaddr + 4); + a2 =3D ldl_phys(cs->as, curaddr + 8); + a3 =3D ldl_phys(cs->as, curaddr + 12); + if (a0 !=3D 0 || a1 !=3D 0 || a2 !=3D 0 || a3 !=3D 0) { + qemu_log(HWADDR_FMT_plx ": %08x %08x %08x %08x\n", + curaddr, a0, a1, a2, a3); } } -#endif - } else { - qemu_log_mask(CPU_LOG_MMU, "No access allowed\n"); - ret =3D -3; } +#endif } else { qemu_log_mask(CPU_LOG_MMU, "direct store...\n"); /* Direct-store segment : absolutely *BUGGY* for now */ --=20 2.43.0