From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754200AbeDBDeR (ORCPT ); Sun, 1 Apr 2018 23:34:17 -0400 Received: from zxshcas2.zhaoxin.com ([180.169.121.92]:22991 "EHLO ZXSHCAS2.zhaoxin.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1754139AbeDBDeL (ORCPT ); Sun, 1 Apr 2018 23:34:11 -0400 From: David Wang To: , , , , , , , CC: , , , , , , David Wang Subject: [PATCH v2 1/2] x86/mce: new Centaur CPUs support MCE broadcasting Date: Mon, 2 Apr 2018 11:33:51 +0800 Message-ID: <1522640032-3357-2-git-send-email-davidwang@zhaoxin.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1522640032-3357-1-git-send-email-davidwang@zhaoxin.com> References: <1522640032-3357-1-git-send-email-davidwang@zhaoxin.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.29.8.54] X-ClientProxiedBy: zxbjmbx1.zhaoxin.com (10.29.252.163) To zxbjmbx3.zhaoxin.com (10.29.252.165) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch is used to tell the kernel that newer Centaur CPU support MCE broadcasting. Signed-off-by: David Wang --- arch/x86/kernel/cpu/mcheck/mce.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 7065846..c3db7ce 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -1688,6 +1688,17 @@ static int __mcheck_cpu_apply_quirks(struct cpuinfo_x86 *c) if (c->x86 == 6 && c->x86_model == 45) quirk_no_way_out = quirk_sandybridge_ifu; } + + if (c->x86_vendor == X86_VENDOR_CENTAUR) { + /* + * All newer Centaur CPUs support MCE broadcasting. Enable + * synchronization with a one second timeout. + */ + if ((c->x86 > 6 || (c->x86 == 6 && c->x86_model == 0xf && c->x86_mask >=0xe)) && + cfg->monarch_timeout < 0) + cfg->monarch_timeout = USEC_PER_SEC; + } + if (cfg->monarch_timeout < 0) cfg->monarch_timeout = 0; if (cfg->bootlog != 0) -- 1.9.1