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Wed, 20 Jul 2022 17:27:25 -0700 (PDT) Date: Thu, 21 Jul 2022 08:27:19 +0800 From: Leo Yan To: Arnaldo Carvalho de Melo Cc: Peter Zijlstra , Ingo Molnar , Mark Rutland , Jiri Olsa , Namhyung Kim , Ian Rogers , John Garry , Will Deacon , James Clark , German Gomez , Ali Saidi , Joe Mario , Adam Li , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Kajol Jain Subject: Re: [PATCH v5 01/17] perf: Add SNOOP_PEER flag to perf mem data struct Message-ID: <20220721002719.GA29595@leoy-ThinkPad-X240s> References: <20220604042820.2270916-1-leo.yan@linaro.org> <20220604042820.2270916-2-leo.yan@linaro.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220720_172731_202365_95220F46 X-CRM114-Status: GOOD ( 18.93 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Jul 20, 2022 at 03:46:49PM -0300, Arnaldo Carvalho de Melo wrote: > Em Wed, Jul 20, 2022 at 03:45:51PM -0300, Arnaldo Carvalho de Melo escreveu: > > Em Sat, Jun 04, 2022 at 12:28:04PM +0800, Leo Yan escreveu: > > > From: Ali Saidi > > > > > > 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 > > > Reviewed-by: Kajol Jain > > > > Hey, any knews about this going upstream? PeterZ? > > Just took a look and it isn't in tip/master. Yeah, this patch is not picked by maintainers. I confirmed that this patch can be applied cleanly on tip/master branch. Peter.Z, could you pick this patch? Thanks, Leo _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel