From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932434AbeCMBti (ORCPT ); Mon, 12 Mar 2018 21:49:38 -0400 Received: from mga09.intel.com ([134.134.136.24]:20200 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932265AbeCMBth (ORCPT ); Mon, 12 Mar 2018 21:49:37 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.47,463,1515484800"; d="scan'208";a="34456901" From: "Liang, Kan" Subject: Re: [PATCH] perf/x86/uncore: Add missing filter constraint for SKX CHA event To: Peter Zijlstra Cc: mingo@kernel.org, linux-kernel@vger.kernel.org, eranian@google.com, ak@linux.intel.com References: <1520869294-14176-1-git-send-email-kan.liang@linux.intel.com> <20180312163914.GG4043@hirez.programming.kicks-ass.net> Message-ID: Date: Mon, 12 Mar 2018 21:49:35 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <20180312163914.GG4043@hirez.programming.kicks-ass.net> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 3/12/2018 12:39 PM, Peter Zijlstra wrote: > On Mon, Mar 12, 2018 at 08:41:34AM -0700, Kan Liang wrote: >> From: Stephane Eranian >> >> Adding a filter constraint for Intel Skylake CHA event >> UNC_CHA_UPI_CREDITS_ACQUIRED (0x38). >> The event supports core-id/thread-id and link filtering. > > Could you also comment on the other CHA patch? > > https://lkml.kernel.org/r/CS1PR84MB01182561B15688095C4DBF30F6D80@CS1PR84MB0118.NAMPRD84.PROD.OUTLOOK.COM > Now, there is a recommended way in uncore document to query the number of CHAs by reading bits 27:0 in the CAPID6 register located at Device 30, Function 3, Offset 0x9C. I have implemented a patch and sent it to Gary. It should fix his issue. Thanks, Kan