From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752694AbeFEPAo (ORCPT ); Tue, 5 Jun 2018 11:00:44 -0400 Received: from foss.arm.com ([217.140.101.70]:57030 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752057AbeFEPAm (ORCPT ); Tue, 5 Jun 2018 11:00:42 -0400 Subject: Re: [PATCH v2 0/5] arm64: perf: Support for chained counters To: Suzuki K Poulose , linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, will.deacon@arm.com, mark.rutland@arm.com, robin.murphy@arm.com References: <1527591356-10934-1-git-send-email-suzuki.poulose@arm.com> From: Julien Thierry Message-ID: <3cbe09d3-7878-d53d-0918-dfb38ac89353@arm.com> Date: Tue, 5 Jun 2018 16:00:39 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 MIME-Version: 1.0 In-Reply-To: <1527591356-10934-1-git-send-email-suzuki.poulose@arm.com> 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 29/05/18 11:55, Suzuki K Poulose wrote: > This series adds support for counting PMU events using 64bit counters > for arm64 PMU. > > The Arm v8 PMUv3 supports combining two adjacent 32bit counters > (low even and hig odd counters) to count a given "event" in 64bit mode. > This series adds the support for 64bit events in the core arm_pmu driver > infrastructure and adds the support for armv8 64bit kernel PMU to use > chained counters to count in 64bit mode. For CPU cycles, we use the cycle > counter in 64bit mode, when requested. If the cycle counter is not available, > we fall back to chaining the counters. > > Tested on Juno, Fast models. Applies on 4.17-rc4 > For the series: Reviewed-by: Julien Thierry -- Julien Thierry