From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757899AbZKRQ4i (ORCPT ); Wed, 18 Nov 2009 11:56:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757778AbZKRQ4h (ORCPT ); Wed, 18 Nov 2009 11:56:37 -0500 Received: from casper.infradead.org ([85.118.1.10]:60734 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757731AbZKRQ4h (ORCPT ); Wed, 18 Nov 2009 11:56:37 -0500 Subject: RE: [PATCH] ia64 support for tools/perf/ From: Peter Zijlstra To: "Luck, Tony" Cc: Ingo Molnar , Paul Mackerras , "linux-kernel@vger.kernel.org" In-Reply-To: <57C9024A16AD2D4C97DC78E552063EA3E3876A5B@orsmsx505.amr.corp.intel.com> References: <4b02d7f43514327a@agluck-desktop.sc.intel.com> <20091117172139.GB5967@elte.hu> <57C9024A16AD2D4C97DC78E552063EA3E3876A5B@orsmsx505.amr.corp.intel.com> Content-Type: text/plain; charset="UTF-8" Date: Wed, 18 Nov 2009 17:56:36 +0100 Message-ID: <1258563396.3918.698.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2009-11-17 at 09:25 -0800, Luck, Tony wrote: > > Btw., are you planning HAVE_PERF_EVENTS support for IA64? (It's nice > > stuff, i can only recommend it! ;-) > > My first goal is getting the s/w events hooked up and working. I'm still > wondering about how to get the h/w counters to co-exist with perfmon (which > has been part of ia64 API for many years). A first approach could be to make them mutually exclusive at runtime. When there's a perf_event user, perfmon users get FAIL and vs. This is basically the state for x86 perf_event vs oprofile atm.