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([203.56.128.103]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1fd64d07ad9sm2067415ad.177.2024.07.18.18.07.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Jul 2024 18:07:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1721351249; x=1721956049; 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=T/SUfCnTpRQkNLbtLFhLzUNUB0u06MHsZx7MB+lBLUc=; b=YjsquKBmU2OKdeWRj5y1IYkFT2Zoirmb0L1jzJ2KhT05hfp0dQxPUXj3ncMB+rttK3 tGRQNXKhXH99C0UfDurBpmCPPUXkqb3y5BVnABvrtcfG4DX+rHE2W475Rn2lt8xBKEYy /K4Vy1QQurMEkFF43HQpn147EnpJWfTlK5CR3DKfwBxsEi9EMTNLRjv3vsbRMfRQhrlW Fu6WU2IPCHwSMnADfCo+wN2y/fV1+SWiCmgvU0k0CRkcJOT1GRtlzf2wwXP01rO7Rzc4 e0i5090qUXSx3Cu/81TVh0upS0zVQLPAUvczuHwQotk1MEqoAUyOLrHHOtCFxkSKEOfF Fsyw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721351249; x=1721956049; 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=T/SUfCnTpRQkNLbtLFhLzUNUB0u06MHsZx7MB+lBLUc=; b=Il+mivfuIxzCr1upA12ojQrrSKnqFcp/10dGkIrPhXvZ9kHEJ8kKcBENpQjQRrqqzj XZB8eHr80x/xMA47jQMLmKQlN7V9+T3QyOBtqsODppDaXRvYKw0vwvj82MWVmxkKt9u4 GSdmir01cDiDs2RywNKjW9LsFti0XmLgCG6XsYtqAu1zo1ALoDrDN62SFofbLwbLNvdE 9mLdw/LEyKrAIOvKLu4P6cnqI+xZDoqqRDRGYe5LYRQYlmJCOxtiy/kP0APfMMZQ/iyg Wd3F93KYY7qHRRqTALD9X+5llilvwsEDtwWXIFsP6pi4V9fQ4ho5ksURRTd1pwoF0Sm8 fgLQ== X-Gm-Message-State: AOJu0YwMmrshZt9qw79HQHgiCGAc9GOpNPzd5DjLWC7GQ9ftOIv50m0E 0BjAox4dYrk0fFPp1Amu+1XNDH3SMf0cQOuDUWzR3ALQ7KNrWC+RTLb0rtk6B7IRiTk82d2bIyn kU+YYdQ== X-Google-Smtp-Source: AGHT+IHQAnSGOWBHimOCTiszD0Dzf/Awm3haLVGX0zJgVaqeM7yCqPcJrzDh730KnsTFHjg8rW5A/A== X-Received: by 2002:a17:902:db0d:b0:1fb:1b16:eb80 with SMTP id d9443c01a7336-1fc4e15c311mr52103855ad.26.1721351248839; Thu, 18 Jul 2024 18:07:28 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, qemu-ppc@nongu.org, qemu-s390x@nongnu.org, qemu-riscv@nongnu.org, BALATON Zoltan , Nicholas Piggin Subject: [PATCH v3 04/12] target/ppc/mem_helper.c: Remove a conditional from dcbz_common() Date: Fri, 19 Jul 2024 11:06:59 +1000 Message-ID: <20240719010707.1319675-5-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240719010707.1319675-1-richard.henderson@linaro.org> References: <20240719010707.1319675-1-richard.henderson@linaro.org> 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+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::62e; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62e.google.com X-Spam_score_int: 37 X-Spam_score: 3.7 X-Spam_bar: +++ X-Spam_report: (3.7 / 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, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, SUSPICIOUS_RECIPS=2.51 autolearn=no 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+importer2=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer2=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1721351379817116300 Content-Type: text/plain; charset="utf-8" From: BALATON Zoltan Instead of passing a bool and select a value within dcbz_common() let the callers pass in the right value to avoid this conditional statement. On PPC dcbz is often used to zero memory and some code uses it a lot. This change improves the run time of a test case that copies memory with a dcbz call in every iteration from 6.23 to 5.83 seconds. Signed-off-by: BALATON Zoltan Message-Id: <20240622204833.5F7C74E6000@zero.eik.bme.hu> Reviewed-by: Richard Henderson Signed-off-by: Richard Henderson Reviewed-by: Nicholas Piggin --- target/ppc/mem_helper.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/target/ppc/mem_helper.c b/target/ppc/mem_helper.c index f88155ad45..361fd72226 100644 --- a/target/ppc/mem_helper.c +++ b/target/ppc/mem_helper.c @@ -271,12 +271,11 @@ void helper_stsw(CPUPPCState *env, target_ulong addr,= uint32_t nb, } =20 static void dcbz_common(CPUPPCState *env, target_ulong addr, - uint32_t opcode, bool epid, uintptr_t retaddr) + uint32_t opcode, int mmu_idx, uintptr_t retaddr) { target_ulong mask, dcbz_size =3D env->dcache_line_size; uint32_t i; void *haddr; - int mmu_idx =3D epid ? PPC_TLB_EPID_STORE : ppc_env_mmu_index(env, fal= se); =20 #if defined(TARGET_PPC64) /* Check for dcbz vs dcbzl on 970 */ @@ -309,12 +308,12 @@ static void dcbz_common(CPUPPCState *env, target_ulon= g addr, =20 void helper_dcbz(CPUPPCState *env, target_ulong addr, uint32_t opcode) { - dcbz_common(env, addr, opcode, false, GETPC()); + dcbz_common(env, addr, opcode, ppc_env_mmu_index(env, false), GETPC()); } =20 void helper_dcbzep(CPUPPCState *env, target_ulong addr, uint32_t opcode) { - dcbz_common(env, addr, opcode, true, GETPC()); + dcbz_common(env, addr, opcode, PPC_TLB_EPID_STORE, GETPC()); } =20 void helper_icbi(CPUPPCState *env, target_ulong addr) --=20 2.43.0