From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Fleming Subject: Re: [PATCH V3 0/6] Generalise ARM perf-events backend for oprofile Date: Mon, 13 Sep 2010 08:50:25 +0100 Message-ID: <20100913075025.GA14882@console-pimps.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-sh-owner@vger.kernel.org To: Marc Titinger Cc: robert.richter@amd.com, linux-arch@vger.kernel.org, linux@arm.linux.org.uk, linux-sh@vger.kernel.org, peterz@infradead.org, fweisbec@gmail.com, will.deacon@arm.com, acme@redhat.com, lethal@linux-sh.org, mingo@elte.hu, linux-arm-kernel@lists.infradead.org List-Id: linux-arch.vger.kernel.org On Mon, Sep 13, 2010 at 09:13:32AM +0200, Marc Titinger wrote: > > Hi, > > I'm just being curious : do these patches change the way those chips > should be supported, that do not have a PMU-like IP, but implement > PC-sampling thanks to a general purpose timer (not the system timer) > ? CPUs that do not have a PMU are not required to use the perf-events oprofile backend, it is entirely optional. The pc-sampling timer in oprofile is not affected by this series. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from arkanian.console-pimps.org ([212.110.184.194]:52326 "EHLO arkanian.console-pimps.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752557Ab0IMHu0 (ORCPT ); Mon, 13 Sep 2010 03:50:26 -0400 Date: Mon, 13 Sep 2010 08:50:25 +0100 From: Matt Fleming Subject: Re: [PATCH V3 0/6] Generalise ARM perf-events backend for oprofile Message-ID: <20100913075025.GA14882@console-pimps.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-arch-owner@vger.kernel.org List-ID: To: Marc Titinger Cc: robert.richter@amd.com, linux-arch@vger.kernel.org, linux@arm.linux.org.uk, linux-sh@vger.kernel.org, peterz@infradead.org, fweisbec@gmail.com, will.deacon@arm.com, acme@redhat.com, lethal@linux-sh.org, mingo@elte.hu, linux-arm-kernel@lists.infradead.org Message-ID: <20100913075025.PO_Hv-hVllTUBctZU3kaH13JpRZicZrl3UrIxGZjyoI@z> On Mon, Sep 13, 2010 at 09:13:32AM +0200, Marc Titinger wrote: > > Hi, > > I'm just being curious : do these patches change the way those chips > should be supported, that do not have a PMU-like IP, but implement > PC-sampling thanks to a general purpose timer (not the system timer) > ? CPUs that do not have a PMU are not required to use the perf-events oprofile backend, it is entirely optional. The pc-sampling timer in oprofile is not affected by this series.