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Tue, 06 Aug 2024 15:01:30 -0700 (PDT) Received: from charlie.ba.rivosinc.com ([64.71.180.162]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1ff58f27340sm92578425ad.17.2024.08.06.15.01.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Aug 2024 15:01:29 -0700 (PDT) From: Charlie Jenkins Subject: [PATCH v2 0/2] tools: Add barrier implementations for riscv Date: Tue, 06 Aug 2024 15:01:22 -0700 Message-Id: <20240806-optimize_ring_buffer_read_riscv-v2-0-ca7e193ae198@rivosinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIADKdsmYC/4WNQQ6CMBAAv2J6tqasFcWT/zCE0LKFPdCSLTYq4 e9WEs8eZw4zi4jIhFFcd4tgTBQp+Ayw3wk7tL5HSV1mAQq0OsNJhmmmkd7YMPm+MQ/nkBvGtss i2iQBLroqrEZTosiVidHRczvc68wDxTnwaxum4mt/7epvOxVSydIYqxzoo0a8MaUQyduDDaOo1 3X9AO9O7jDRAAAA To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Andrea Parri Cc: linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Charlie Jenkins X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1722981688; l=914; i=charlie@rivosinc.com; s=20231120; h=from:subject:message-id; bh=4NHQEehVAG0NwxpUnDGcXm8ebXdDqTJOInrMfedXBo0=; b=i+I1n4AKsZR8pKpVgYlgT0CCKtIwC7b2pjgVwea6mE3ubg8yf+0dC42KkaWT+mUnI3SLWIhHt NaO616IplJxDAbx7WL1b6cE1qHI/MI/zZt3DmmrqUJNGG0wm4BHUdos X-Developer-Key: i=charlie@rivosinc.com; a=ed25519; pk=t4RSWpMV1q5lf/NWIeR9z58bcje60/dbtxxmoSfBEcs= Add support for riscv specific barrier implementations to the tools tree, so that fence instructions can be emitted for synchronization. Signed-off-by: Charlie Jenkins --- Changes in v2: - Fix typo in commit message - Link to v1: https://lore.kernel.org/r/20240729-optimize_ring_buffer_read_riscv-v1-0-6bbc0f2434ee@rivosinc.com --- Charlie Jenkins (2): tools: Add riscv barrier implementation tools: Optimize ring buffer for riscv tools/arch/riscv/include/asm/barrier.h | 39 ++++++++++++++++++++++++++++++++++ tools/arch/riscv/include/asm/fence.h | 13 ++++++++++++ tools/include/asm/barrier.h | 2 ++ tools/include/linux/ring_buffer.h | 2 +- 4 files changed, 55 insertions(+), 1 deletion(-) --- base-commit: 0c3836482481200ead7b416ca80c68a29cfdaabd change-id: 20240725-optimize_ring_buffer_read_riscv-228491c4eb6e -- - Charlie