From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jon Hunter Subject: Re: oprofile and ARM A9 hardware counter Date: Fri, 11 May 2012 11:31:47 -0500 Message-ID: <4FAD3EF3.4080409@ti.com> References: <4FAA4DB9.8060504@ti.com> <4FAAB1A3.9040806@ti.com> <4FAAC549.6010206@ti.com> <4FAAE564.6040708@ti.com> <20120510084422.GB27276@mudshark.cambridge.arm.com> <4FAC0F05.3060803@ti.com> <20120511122547.GE17453@mudshark.cambridge.arm.com> <4FAD1865.70003@ti.com> <20120511134920.GC2626@mudshark.cambridge.arm.com> <4FAD27CB.5060102@ti.com> <20120511150223.GD2626@mudshark.cambridge.arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from arroyo.ext.ti.com ([192.94.94.40]:58148 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756649Ab2EKQcJ (ORCPT ); Fri, 11 May 2012 12:32:09 -0400 In-Reply-To: <20120511150223.GD2626@mudshark.cambridge.arm.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Will Deacon Cc: "Cousson, Benoit" , Kevin Hilman , Paul Walmsley , Ming Lei , Maynard Johnson , "Shilimkar, Santosh" , "oprofile-list@lists.sourceforge.net" , Lik Lik , "eranian@gmail.com" , "linux-omap@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" Hi Will, On 05/11/2012 10:02 AM, Will Deacon wrote: > On Fri, May 11, 2012 at 03:52:59PM +0100, Jon Hunter wrote: >> Hi Will, > > Hello, > >> On 05/11/2012 08:49 AM, Will Deacon wrote: >>> I enabled OMAP3 debug peripherals, so I selected CPU_HAS_PMU that way. >> >> I tried the same (make omap2plus_defconfig and enabled the above >> option), and I do see the interrupts firing on both 4430 and 4460... >> >> / # cat /proc/interrupts >> CPU0 CPU1 >> 29: 1023 404 GIC twd >> 33: 401 0 GIC arm-pmu >> 34: 0 441 GIC arm-pmu > > Well, at least it's working for somebody! > >> What is your kernel commit ID that you applied the patches on top of? > > 7cf543bc ("Linux-omap rebuilt: Updated to -rc6, merged in pending branches, > please test"). Is there something else I need too? Ok, thanks. I was based upon Tony's -rc5. However, I rebased to the same as you and it is still working for me Can you send me your .config? At the same time, maybe just try "make omap2plus_defconfig" and enable the OMAP3 debug devices config. That's all I am doing. >> What board are you using? Blaze, panda, etc, and is it 4430 or 4460? > > Ye olde Panda 4430. It does work with my perf/omap4 branch though using the > same .config (I can mail it to you separately if you want). Ok, should be fine. The kernel should print the ES version on start-up ... [ 0.000000] OMAP4430 ES2.2 What does yours show? Cheers Jon