From mboxrd@z Thu Jan 1 00:00:00 1970 From: Santosh Shilimkar Subject: RE: OMAP4: IRQ line of CortexA9 performance monitor Date: Mon, 21 Feb 2011 23:23:43 +0530 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from na3sys009aog102.obsmtp.com ([74.125.149.69]:35779 "EHLO na3sys009aog102.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752720Ab1BUR7y convert rfc822-to-8bit (ORCPT ); Mon, 21 Feb 2011 12:59:54 -0500 Received: by mail-qw0-f52.google.com with SMTP id 6so1153623qwf.25 for ; Mon, 21 Feb 2011 09:59:53 -0800 (PST) In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: =?ISO-8859-1?Q?M=E5ns_Rullg=E5rd?= , linux-omap@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org > -----Original Message----- > From: linux-omap-owner@vger.kernel.org [mailto:linux-omap- > owner@vger.kernel.org] On Behalf Of M=E5ns Rullg=E5rd > Sent: Monday, February 21, 2011 10:49 PM > To: linux-omap@vger.kernel.org > Cc: linux-arm-kernel@lists.infradead.org > Subject: Re: OMAP4: IRQ line of CortexA9 performance monitor > > Ming Lei writes: > > > Hi, > > > > From chapter 17 of "Interrupt controller", OMAP4 TRM, I can't > > find what is the interrupt line of CortexA9 performance monitor > > in omap4. Seems without this information, we can't use perf on > > omap4. > > > > Any suggestions or ideas about it? > > The PMU interrupt is routed through the CTI, which needs to be > properly > configured. Unfortunately, the CTI is not documented in the public > TRM, > and nobody has seen fit to submit a patch suitable for upstream. > Some dirty hacks have been posted, though. > Mans is right. Last time I looked at this, the OMAP4 PMU support needed some hacky code and was not fitting to the generic PMU framework. I will take a second look at it and see if a patch can be generated for upstream. Regards, Santosh -- To unsubscribe from this list: send the line "unsubscribe linux-omap" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html