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[104.237.153.19]) by smtp.gmail.com with ESMTPSA id v24-20020a170902e8d800b0015e8d4eb272sm307061plg.188.2022.05.10.19.20.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 May 2022 19:20:13 -0700 (PDT) Date: Wed, 11 May 2022 10:20:04 +0800 From: Leo Yan To: Arnaldo Carvalho de Melo Cc: Ali Saidi , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org, german.gomez@arm.com, benh@kernel.crashing.org, Nick.Forrington@arm.com, alexander.shishkin@linux.intel.com, andrew.kilroy@arm.com, james.clark@arm.com, john.garry@huawei.com, jolsa@kernel.org, kjain@linux.ibm.com, lihuafei1@huawei.com, mark.rutland@arm.com, mathieu.poirier@linaro.org, mingo@redhat.com, namhyung@kernel.org, peterz@infradead.org, will@kernel.org Subject: Re: [PATCH v8 2/5] perf tools: sync addition of PERF_MEM_SNOOPX_PEER Message-ID: <20220511022004.GA956170@leoy-ThinkPad-X240s> References: <20220504184850.24986-1-alisaidi@amazon.com> <20220504184850.24986-3-alisaidi@amazon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 10, 2022 at 01:28:38PM -0300, Arnaldo Carvalho de Melo wrote: > Em Wed, May 04, 2022 at 06:48:47PM +0000, Ali Saidi escreveu: > > Add a flag to the perf mem data struct to signal that a request caused a > > cache-to-cache transfer of a line from a peer of the requestor and > > wasn't sourced from a lower cache level. The line being moved from one > > peer cache to another has latency and performance implications. On Arm64 > > Neoverse systems the data source can indicate a cache-to-cache transfer > > but not if the line is dirty or clean, so instead of overloading HITM > > define a new flag that indicates this type of transfer. > > > > Signed-off-by: Ali Saidi > > Reviewed-by: Leo Yan > > Was this already merged on the ARM kernel tree? No, I don't think this patch has been merged on Arm kernel tree. I searched Arm and Arm64 git repos, none of them has merged this patch. https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git/log/?qt=author&q=Ali+Saidi http://git.armlinux.org.uk/cgit/linux-arm.git/log/?qt=author&q=Ali+Saidi P.s. Ali missed to include German's review tag, see: https://lore.kernel.org/lkml/458a2de1-dc93-7e2d-5dc5-fbcd670572b6@arm.com/ Do you want us to resend the patch set for adding tags? Thanks, Leo