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[203.86.204.69]) by smtp.gmail.com with ESMTPSA id g204sm1153940pfb.206.2021.06.26.20.31.20 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 26 Jun 2021 20:31:21 -0700 (PDT) From: Paul Campbell To: linux-riscv@lists.infradead.org Subject: prefetchw() Date: Sun, 27 Jun 2021 15:31:18 +1200 Message-ID: <2623321.7s5MMGUR32@rata> Organization: Moonbase Otago MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210626_203124_831995_9AC00146 X-CRM114-Status: UNSURE ( 3.73 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org i noticed today that __builtin_prefetch() emits nothing (at least in my gcc) i wonder if it makes sense to do this for riscv linux? static inline void prefetchw( volatile void *addr) { asm volatile("lb x0, 0(%0)" : : "r" (addr)); } Paul _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv