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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,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 C568AC2D0D1 for ; Sun, 29 Dec 2019 17:58:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A0EE92464B for ; Sun, 29 Dec 2019 17:58:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1577642328; bh=WykSmhYdnsgPQhUMrZIU+I+RjGPaVkLcpYFOzRu3ne4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=aktYS+Ibur4uHCBcQXcqrGng3mgG2bRyUGXLF9P5eEQNehyVT99ua7zzNPPw+6su0 kdZLvNXrue+i1HadzHcT2zwbByejk6ffBUPGGLoArl38Uiky2GYZsQaUvTmQfejFgS Ntf1hhSHKRs+xEBRak1GKnvA9EtZWFbcGzs9gWqA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1733253AbfL2R6r (ORCPT ); Sun, 29 Dec 2019 12:58:47 -0500 Received: from mail.kernel.org ([198.145.29.99]:50000 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733057AbfL2R6q (ORCPT ); Sun, 29 Dec 2019 12:58:46 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 76AAB208C4; Sun, 29 Dec 2019 17:58:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1577642325; bh=WykSmhYdnsgPQhUMrZIU+I+RjGPaVkLcpYFOzRu3ne4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XT+fLv6I81kAmNVJsW+wU73noWH5yZUwQSwEJv4Eg2X59CDsR2q12PZ4Zym+HAwKE uv3SajrcB3msOJb7jQyRyDjNI8kvakWzC1PECUCxaQlAJPANrOBkqQHwsPM6xQyxPt dt0uDF43nHiIZvq77tzclxz7GDI6OsCAMwke1tqQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, 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 Subject: [PATCH 5.4 420/434] x86/intel: Disable HPET on Intel Coffee Lake H platforms Date: Sun, 29 Dec 2019 18:27:53 +0100 Message-Id: <20191229172730.961529008@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191229172702.393141737@linuxfoundation.org> References: <20191229172702.393141737@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Kai-Heng Feng commit f8edbde885bbcab6a2b4a1b5ca614e6ccb807577 upstream. 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: Greg Kroah-Hartman --- arch/x86/kernel/early-quirks.c | 2 ++ 1 file changed, 2 insertions(+) --- a/arch/x86/kernel/early-quirks.c +++ b/arch/x86/kernel/early-quirks.c @@ -710,6 +710,8 @@ static struct chipset early_qrk[] __init */ { 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,