From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755112AbdFLQU5 (ORCPT ); Mon, 12 Jun 2017 12:20:57 -0400 Received: from foss.arm.com ([217.140.101.70]:37196 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754959AbdFLQUv (ORCPT ); Mon, 12 Jun 2017 12:20:51 -0400 Date: Mon, 12 Jun 2017 11:20:48 -0500 From: Kim Phillips To: Mark Rutland Cc: Will Deacon , linux-arm-kernel@lists.infradead.org, marc.zyngier@arm.com, tglx@linutronix.de, peterz@infradead.org, alexander.shishkin@linux.intel.com, robh@kernel.org, suzuki.poulose@arm.com, pawel.moll@arm.com, mathieu.poirier@linaro.org, mingo@redhat.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 0/5] Add support for the ARMv8.2 Statistical Profiling Extension Message-Id: <20170612112048.69561e8d067488e8689de755@arm.com> In-Reply-To: <20170612110823.GA27319@leverpostej> References: <1496676177-29356-1-git-send-email-will.deacon@arm.com> <20170612110823.GA27319@leverpostej> Organization: ARM X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 12 Jun 2017 12:08:23 +0100 Mark Rutland wrote: > On Mon, Jun 05, 2017 at 04:22:52PM +0100, Will Deacon wrote: > > This is the sixth posting of the patches previously posted here: > > > > rfcv1: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-January/476450.html > > rfcv2: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-January/479387.html > > v1: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-January/483684.html > > v2: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-April/499938.html > > v3: http://lists.infradead.org/pipermail/linux-arm-kernel/2017-May/507132.html > > > > The main change since v3 is that I have reworked and fixed the CPU hotplug > > and notifier bits, in light of review comments from tglx. > > > > The architecture documentation is available here: > > > > https://developer.arm.com/products/architecture/a-profile/docs/ddi0586/latest/arm-architecture-reference-manual-supplement-statistical-profiling-extension-for-armv8-a > > Kim, do you have any version of the userspace side that we could look > at? > > For review, it would be really helpful to have something that can poke > the PMU, even if it's incomplete or lacking polish. Here's the latest push, based on a a couple of prior versions of this driver: http://linux-arm.org/git?p=linux-kp.git;a=shortlog;h=refs/heads/armspev0.1 I don't seem to be able to get any SPE data output after rebasing on this version of the driver. Still don't know why at the moment... Kim