From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1753256AbcJJQTV (ORCPT <rfc822;w@1wt.eu>);
        Mon, 10 Oct 2016 12:19:21 -0400
Received: from mx2.suse.de ([195.135.220.15]:54856 "EHLO mx2.suse.de"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S1752462AbcJJQTT (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
        Mon, 10 Oct 2016 12:19:19 -0400
Date: Mon, 10 Oct 2016 18:18:21 +0200
From: Borislav Petkov <bp@suse.de>
To: Dave Hansen <dave.hansen@intel.com>
Cc: Nilay Vaish <nilayvaish@gmail.com>, Fenghua Yu <fenghua.yu@intel.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        "H. Peter Anvin" <h.peter.anvin@intel.com>,
        Ingo Molnar <mingo@elte.hu>, Tony Luck <tony.luck@intel.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Stephane Eranian <eranian@google.com>, Shaohua Li <shli@fb.com>,
        David Carrillo-Cisneros <davidcc@google.com>,
        Ravi V Shankar <ravi.v.shankar@intel.com>,
        Sai Prakhya <sai.praneeth.prakhya@intel.com>,
        Vikas Shivappa <vikas.shivappa@linux.intel.com>,
        linux-kernel <linux-kernel@vger.kernel.org>, x86 <x86@kernel.org>
Subject: Re: [PATCH v3 04/18] x86/intel_rdt: Feature discovery
Message-ID: <20161010161821.izr3ow7m4bht2vaw@pd.tnic>
References: <1475894763-64683-1-git-send-email-fenghua.yu@intel.com>
 <1475894763-64683-5-git-send-email-fenghua.yu@intel.com>
 <CACbG309kJa-6pAB_7K4GaJEPB7Tw0fQxd=_5+oWtZm1kCaAtHA@mail.gmail.com>
 <57FBBB68.4090008@intel.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <57FBBB68.4090008@intel.com>
User-Agent: NeoMutt/ (1.7.0)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Mon, Oct 10, 2016 at 09:01:44AM -0700, Dave Hansen wrote:
> While that isn't a horrible idea, it's also not something that we've
> enforced at *all* in the past.  Would you suggest that we do this only
> for features in the generic CPUID leaves, or all features?

There's no reason to do anything really: the 0x0... CPUID leaf is owned
by Intel and 0x8... by AMD. So far, if AMD implements a feature in the
Intel leaf, it sets the respective CPUID bit. So a feature can be
present in multiple vendors. Thus you don't need the vendor name in the
define.

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--