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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 C739DC2D0CE for ; Fri, 27 Dec 2019 17:41:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A521322B48 for ; Fri, 27 Dec 2019 17:41:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1577468480; bh=Ho1Xlqow1ZoOG2sC7QTQAP4w132qJ+CdPclVM/y0AEk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=BdDmeV5ZDFCdraTlcVL6XvyglvPxN4pi0WH+8wxPMkafFrq/zxVNwdF+VTGldhHkP 2h5CiR4aTJoQV7wi/fZ2mdUVWYY3lB178+vFPJUcqgS/QmdyUi5d1nXskjzYU9hlCw /+fpjHQRk5t7wCGe3esf4ybCr8EyA5AWBha+OXjk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727397AbfL0RlT (ORCPT ); Fri, 27 Dec 2019 12:41:19 -0500 Received: from mail.kernel.org ([198.145.29.99]:37342 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727358AbfL0RlQ (ORCPT ); Fri, 27 Dec 2019 12:41:16 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2011B22525; Fri, 27 Dec 2019 17:41:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1577468475; bh=Ho1Xlqow1ZoOG2sC7QTQAP4w132qJ+CdPclVM/y0AEk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rdjReN0VJaOLUeDaMuzU7o1bTaP4qlQE2nxOT3cv5+R8I6InkX990p+ouokJ1mqAB CWxGcn+VnULb3dMo18htrizHF+yRvcdrgi8XpO3V+sgjmoCJGoF4cKG/cfC5WY7557 hXyiduhG6zvpZEBzVrGMLPSg7EqqlUEBNtmq5FHY= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Kai-Heng Feng , Linus Torvalds , Peter Zijlstra , Thomas Gleixner , bp@alien8.de, feng.tang@intel.com, harry.pan@intel.com, hpa@zytor.com, Ingo Molnar , Sasha Levin , linux-pci@vger.kernel.org Subject: [PATCH AUTOSEL 5.4 015/187] x86/intel: Disable HPET on Intel Coffee Lake H platforms Date: Fri, 27 Dec 2019 12:38:03 -0500 Message-Id: <20191227174055.4923-15-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191227174055.4923-1-sashal@kernel.org> References: <20191227174055.4923-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kai-Heng Feng [ Upstream commit f8edbde885bbcab6a2b4a1b5ca614e6ccb807577 ] Coffee Lake H SoC has similar behavior as Coffee Lake, skewed HPET timer once the SoCs entered PC10. So let's disable HPET on CFL-H platforms. Signed-off-by: Kai-Heng Feng Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: bp@alien8.de Cc: feng.tang@intel.com Cc: harry.pan@intel.com Cc: hpa@zytor.com Link: https://lkml.kernel.org/r/20191129062303.18982-1-kai.heng.feng@canonical.com Signed-off-by: Ingo Molnar Signed-off-by: Sasha Levin --- arch/x86/kernel/early-quirks.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c index 4cba91ec8049..606711f5ebf8 100644 --- a/arch/x86/kernel/early-quirks.c +++ b/arch/x86/kernel/early-quirks.c @@ -710,6 +710,8 @@ static struct chipset early_qrk[] __initdata = { */ { PCI_VENDOR_ID_INTEL, 0x0f00, PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet}, + { PCI_VENDOR_ID_INTEL, 0x3e20, + PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet}, { PCI_VENDOR_ID_INTEL, 0x3ec4, PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet}, { PCI_VENDOR_ID_BROADCOM, 0x4331, -- 2.20.1