Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751844AbdFHUWc (ORCPT ); Thu, 8 Jun 2017 16:22:32 -0400 Received: from bombadil.infradead.org ([65.50.211.133]:38454 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751567AbdFHUWb (ORCPT ); Thu, 8 Jun 2017 16:22:31 -0400 Date: Thu, 8 Jun 2017 22:22:30 +0200 From: Peter Zijlstra To: Andi Kleen Cc: Stephane Eranian , Arnaldo Carvalho de Melo , LKML , Jiri Olsa , Andi Kleen , Sukadev Bhattiprolu , Madhavan Srinivasan Subject: Re: [PATCH v2 2/4] perf/x86: Fix data source decoding for Skylake Message-ID: <20170608202230.GF8337@worktop.programming.kicks-ass.net> References: <20170607232226.26365-1-andi@firstfloor.org> <20170607232226.26365-3-andi@firstfloor.org> <20170608081531.iv27xaghntniwmm6@hirez.programming.kicks-ass.net> <20170608201007.GH8096@two.firstfloor.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20170608201007.GH8096@two.firstfloor.org> User-Agent: Mutt/1.5.22.1 (2013-10-16) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 443 Lines: 9 On Thu, Jun 08, 2017 at 01:10:07PM -0700, Andi Kleen wrote: > Note that Skylake cannot fill it in, it doesn't report the hops. > And for the old parts the existing bits work. So I don't think > there's a motivation to add a new hops field, unless some other > architecture needs it. PowerPC is currently using the REM2 stuff, I added the people who wrote that code to Cc in the hope they would help by explaining their platform capabilities.