From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755588AbbE2J3n (ORCPT ); Fri, 29 May 2015 05:29:43 -0400 Received: from eu-smtp-delivery-143.mimecast.com ([207.82.80.143]:15127 "EHLO eu-smtp-delivery-143.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754488AbbE2J3g convert rfc822-to-8bit (ORCPT ); Fri, 29 May 2015 05:29:36 -0400 Message-ID: <55683163.7050103@arm.com> Date: Fri, 29 May 2015 10:29:07 +0100 From: "Suzuki K. Poulose" User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: "arm@kernel.org" , "arnd@arndb.de" CC: Will Deacon , Punit Agrawal , Mark Rutland , "linux-arm-kernel@lists.infradead.org" , "olof@lixom.net" , Pawel Moll , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH 0/7] ARM CCI PMU updates for 4.2 References: <1432633996-7229-1-git-send-email-suzuki.poulose@arm.com> In-Reply-To: <1432633996-7229-1-git-send-email-suzuki.poulose@arm.com> X-OriginalArrivalTime: 29 May 2015 09:29:08.0271 (UTC) FILETIME=[E9D123F0:01D099F1] X-MC-Unique: Ai2wieG3RV-1PEb1QdsMyg-1 Content-Type: text/plain; charset=WINDOWS-1252; format=flowed Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi arm-soc folk, On 26/05/15 10:53, Suzuki K. Poulose wrote: > From: "Suzuki K. Poulose" > > Here is the series which adds support for the CCI-500 > PMU. Could you please apply this for 4.2 ? > > Please let me know if you need a pull request, I could ask Will to > setup one. Gentle ping on this series for 4.2. Suzuki > --- > This series adds the support for CCI-500 PMU, by > reusing and rearranging the CCI-400 PMU driver code. > > CCI-500 (the new Cache Coherent Interconnect IP) has > a PMU with 8 independent event counters and supports > profiling events related to master/slave interfaces > along with the global events(cci internal events). > > The series also adds aliases for events for all the > supported CCI PMUs(CCI_400{r0,r1}, CCI_500). > > Patches 1/7 is a fix posted by Mark Salter, which has > been posted to arm@kernel.org already. I have included > it in this series, as this series applies on top of it. > > Patches 2-5 - Creates an abstraction of a CCI PMU and > makes the CCI-400 driver code to make use of the abstraction. > Patch 6 - Adds the CCI-500 PMU driver support > Patch 7 - Adds the aliases for CCI PMU events (specific to chipsets). > > With the series, one can use named events for the CCI pmus. > > e.g, CCI-400 > > # perf list | grep CCI > CCI_400/cycles/ [Kernel PMU event] > CCI_400/mi_retry_speculative_fetch,source=?/ [Kernel PMU event] > > e.g, CCI-500 > > # perf list |grep CCI > CCI_500/cci_rq_stall_address_hazard/ [Kernel PMU event] > CCI_500/cci_snoop_access_filter_bank_0_1/ [Kernel PMU event] > > Testing was performed on a fast model, with perf fuzzer and functional > tests for the CCI-500 PMU. > --- > Changes since V1: https://lkml.org/lkml/2015/5/5/323 > > The series remains functionaly pretty much the same, except for a minor > fix in the Kconfig default for CCI-500. > - Pulled in a CCI-400 config fix posted separately, > as Patch 1/7. > https://patchwork.kernel.org/patch/6387121/ > - Add the similar Kconfig changes for CCI-500 as fixed in > the patch above. > - Dropped Mark Salter's fix for CCI, which is now queued. > > Suzuki K. Poulose (7): > arm-cci: Do not enable CCI-400 PMU by default > arm-cci: Cleanup PMU driver code > arm-cci: Abstract out the PMU counter details > arm-cci: Abstract handling for CCI events > arm-cci: Sanitise CCI400 PMU driver specific code > arm-cci: Add CCI-500 PMU support > arm-cci: Add aliases for PMU events > > Documentation/devicetree/bindings/arm/cci.txt | 4 +- > drivers/bus/Kconfig | 31 +- > drivers/bus/arm-cci.c | 905 ++++++++++++++++++++----- > 3 files changed, 763 insertions(+), 177 deletions(-) >