From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 633EAC433EF for ; Thu, 21 Jul 2022 00:27:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229999AbiGUA1b (ORCPT ); Wed, 20 Jul 2022 20:27:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57952 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230333AbiGUA1a (ORCPT ); Wed, 20 Jul 2022 20:27:30 -0400 Received: from mail-ej1-x62a.google.com (mail-ej1-x62a.google.com [IPv6:2a00:1450:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A9F9655A7 for ; Wed, 20 Jul 2022 17:27:28 -0700 (PDT) Received: by mail-ej1-x62a.google.com with SMTP id b11so346538eju.10 for ; Wed, 20 Jul 2022 17:27:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=bCLRjsvYtRZeZNV9Bm912X2zs0KkM1GXJxaEZhHa5nE=; b=HqMfVkkMPd0BQ06k135notIHxmB0/Wr0NhajRsDIE/q1frPsEfF5cN+9ONCxbxnP5D L8vG6ozVaqzhR98wdBJ3ap2Woe6/8AyIcyHIqcCkGQsZp0YnD/5meOUjRNixzqOjEsrm d/lKXf7c5DfoJp5ahmT4ImNt6nj3COLZ/j8d2YdNhuQT9yJuWBKYKaVpVcTGqOkAjErr JywaPH9o2dDwLwd+A389tgG/QBjfKvEBom4Q3mTtorlMiVxiWY1B5JAsdRHtRvHIhipA 47niDJYvv3ly9eHuFjYat0VcT4Y9bv9RcCdGmOeneOm8kczIQeq3nCZeSyVMZGTxjNBw u/VA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=bCLRjsvYtRZeZNV9Bm912X2zs0KkM1GXJxaEZhHa5nE=; b=jjbMV9Nh2v0KePOeVyKUPCyyOvfZ1pHhSigyRwhzMrtwvF/bmiWIwEPuktzMQIJYyo UX0UZsY091FBYOgkpmfTEcfgvg3wGYCWktKo7T10czjFFFCQi0AAcFYAElYPSWbVAzye +Emvn4r9NBuI6OiMDRsadQGkaIUubUq0RB+66BqZ3lqn5yCwy3IGN3tgh1SOIUe/RWBK j0vFxZgLrb4I+7rq/QtVfIa4fgZMONn8yUexNg62DWO5F9Kn6cO+CUT38LtRbYr/4RC9 CxFZAgm0Sr3Zv/E1MOJIdJKwy2viRU2q8doPwSq5ka+g4sfekGkFDnOOg3J7HHZ9iGfJ MPtQ== X-Gm-Message-State: AJIora/QQ9O2pzxOfagFblRl0owf0EBab/rTrwOnfQHfe5BOv8QaAo0y ecS/UrNA+t/wPdPSUhVfAcSurQ== X-Google-Smtp-Source: AGRyM1vgRhqQv3LgmIHebxs9JwPcvjq22yU0EnYatlVT11ojjmDMODN5Id2uFmWBXjUd5sSDsbQ2ig== X-Received: by 2002:a17:906:7e43:b0:72b:52de:b039 with SMTP id z3-20020a1709067e4300b0072b52deb039mr38326269ejr.198.1658363246662; Wed, 20 Jul 2022 17:27:26 -0700 (PDT) Received: from leoy-ThinkPad-X240s ([104.245.97.246]) by smtp.gmail.com with ESMTPSA id j10-20020a17090623ea00b0072ab06bf296sm213886ejg.23.2022.07.20.17.27.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); 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-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-perf-users@vger.kernel.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