From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756045AbcAHUWi (ORCPT ); Fri, 8 Jan 2016 15:22:38 -0500 Received: from www.linutronix.de ([62.245.132.108]:39807 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755163AbcAHUWg (ORCPT ); Fri, 8 Jan 2016 15:22:36 -0500 Date: Fri, 8 Jan 2016 21:21:37 +0100 (CET) From: Thomas Gleixner To: Marcelo Tosatti cc: "Yu, Fenghua" , LKML , Peter Zijlstra , "x86@kernel.org" , Luiz Capitulino , "Shivappa, Vikas" , Tejun Heo , "Shankar, Ravi V" , "Luck, Tony" Subject: Re: [RFD] CAT user space interface revisited In-Reply-To: Message-ID: References: <3E5A0FA7E9CA944F9D5414FEC6C712205DF4E157@ORSMSX106.amr.corp.intel.com> <20151223102820.GA2559@amt.cnet> <20151231192232.GA10838@amt.cnet> <20160104172054.GA21926@amt.cnet> User-Agent: Alpine 2.11 (DEB 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 6 Jan 2016, Thomas Gleixner wrote: > > This is general information: > > xxxxxxx/cat/max_cosids > xxxxxxx/cat/max_maskbits > xxxxxxx/cat/cdp_enable > > This is per socket information and per socket cos-id management Just had a discussion with HPA about this and he pointed out that socket might not be the proper solution. The correct partitioning unit is cache domains. So we should change socket-X to L3-domain-X. That'll allow us to integrate future things like CAT on L2. Thanks, tglx