From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7FADFC433E0 for ; Tue, 26 May 2020 17:28:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 63097204EF for ; Tue, 26 May 2020 17:28:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728677AbgEZR2H (ORCPT ); Tue, 26 May 2020 13:28:07 -0400 Received: from mga09.intel.com ([134.134.136.24]:26901 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728339AbgEZR2H (ORCPT ); Tue, 26 May 2020 13:28:07 -0400 IronPort-SDR: etK1ewcjgIuCNPdb3foguoktaV/uxLdhqLmgzcPZUZ0jzOsyOs5WK//wkVdj/GXvJ7kLE3o4nv xDVBQr0qLLkg== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 May 2020 10:28:06 -0700 IronPort-SDR: qb9dzuLpKdVY1btB3YXpyKlC3hjxoqruoGUWD6uXa6iwm601KVXZIDqdUhskdl/I1cJpG3vnWe LAiUr20S8W2A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,437,1583222400"; d="scan'208";a="468384377" Received: from romley-ivt3.sc.intel.com ([172.25.110.60]) by fmsmga005.fm.intel.com with ESMTP; 26 May 2020 10:28:06 -0700 From: Fenghua Yu To: "Thomas Gleixner" , "Peter Zijlstra" , "Borislav Petkov" , "Ingo Molnar" , "Tony Luck" , "Ravi V Shankar" Cc: "x86" , "linux-kernel" , Fenghua Yu Subject: [PATCH] x86/split_lock: Add Tigerlake CPU models Date: Tue, 26 May 2020 10:26:07 -0700 Message-Id: <1590513967-46432-1-git-send-email-fenghua.yu@intel.com> X-Mailer: git-send-email 2.5.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Tigerlake CPUs support split lock detection. Enumerate the feature by the split lock support bit in the CORE_CAPABILITIES MSR. Signed-off-by: Fenghua Yu Reviewed-by: Tony Luck --- arch/x86/kernel/cpu/intel.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index a19a680542ce..0717b12d7f05 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -1138,6 +1138,8 @@ static const struct x86_cpu_id split_lock_cpu_ids[] __initconst = { X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT, 1), X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_D, 1), X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_L, 1), + X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE_L, 1), + X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE, 1), {} }; -- 2.19.1