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 92F92C433F5 for ; Mon, 25 Apr 2022 20:32:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245435AbiDYUfv (ORCPT ); Mon, 25 Apr 2022 16:35:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59792 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233942AbiDYUfs (ORCPT ); Mon, 25 Apr 2022 16:35:48 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 89D03ECCEC; Mon, 25 Apr 2022 13:32:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=sFLxX7FTHxnDRDtuXAaHigLWyZS/TxESdyP0wbN+vMY=; b=ORlXX/IpGxwfgY4pZbZTssEEsT +QSLfwPd6qmS3TrvRMB1zZ5rIy0khieIEYns1MPyCO89hjUuFh0rGAV6+WyHv9eWhyCFFElbDcRsJ ccur8cvYESiHWtklixCMcBSKsB69T8L8TFqtlCarmAKRN6AhmK6N1XEW4I/s4PAWNEfAEL3BBaglt ZLJg2XBgSi+r8Lz52aTW+G3KC+y5Jaq+48pbStPsKDVhbvQz1l5OXJr9kYJD2P1pI3RCihD1PrQNP b5gLZRHqs35F2xf/uTL6XS6ijbfFs058J3akvNaLqye+vTLfmhLflICqP01IF4NnEF7h82D/Iojxi V+dzbRfw==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=worktop.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1nj5Nh-0090VQ-0a; Mon, 25 Apr 2022 20:32:25 +0000 Received: by worktop.programming.kicks-ass.net (Postfix, from userid 1000) id 87460980DCD; Mon, 25 Apr 2022 22:32:22 +0200 (CEST) Date: Mon, 25 Apr 2022 22:32:22 +0200 From: Peter Zijlstra To: Ravi Bangoria Cc: acme@kernel.org, mingo@redhat.com, mark.rutland@arm.com, jolsa@kernel.org, namhyung@kernel.org, tglx@linutronix.de, bp@alien8.de, irogers@google.com, yao.jin@linux.intel.com, james.clark@arm.com, leo.yan@linaro.org, kan.liang@linux.intel.com, ak@linux.intel.com, eranian@google.com, like.xu.linux@gmail.com, x86@kernel.org, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, sandipan.das@amd.com, ananth.narayan@amd.com, kim.phillips@amd.com, rrichter@amd.com, santosh.shukla@amd.com Subject: Re: [PATCH 0/6] perf/amd: Zen4 IBS extensions support Message-ID: <20220425203222.GN2731@worktop.programming.kicks-ass.net> References: <20220425044323.2830-1-ravi.bangoria@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220425044323.2830-1-ravi.bangoria@amd.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Apr 25, 2022 at 10:13:17AM +0530, Ravi Bangoria wrote: > IBS support has been enhanced with two new features in upcoming uarch: > 1. DataSrc extension and 2. L3 Miss Filtering capability. Both are > indicated by CPUID_Fn8000001B_EAX bit 11. Hi Ravi, could you perhaps also look at fixing this existing IBS problem? https://lkml.kernel.org/r/YlVPpVC8chepOdzJ@hirez.programming.kicks-ass.net