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=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 2E6A6C388F7 for ; Mon, 9 Nov 2020 13:47:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DF3DA206E3 for ; Mon, 9 Nov 2020 13:47:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604929630; bh=1Nqv5a9brdzXuwQamrHxpMztFVMWxZqGXNTDubNBN1I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=S6FhdEgeMihHRA2eXJhdQ220slx+DNLepvb1Op6VfQ06PrgkcNbOx+QbT92FOqfqS sYEiIDSoFPhCBnUqSnE8WKeMgAedc2Wje6daSregeoTLzF+soZR9PFCMmHrlsKgxd6 KC2fiXpCrxd1ZjY8VB9B8Fq4gMnDcGqdNYB1sZiY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729978AbgKINrJ (ORCPT ); Mon, 9 Nov 2020 08:47:09 -0500 Received: from mail.kernel.org ([198.145.29.99]:51920 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729974AbgKIM5T (ORCPT ); Mon, 9 Nov 2020 07:57:19 -0500 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (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 5CC1F2083B; Mon, 9 Nov 2020 12:57:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1604926637; bh=1Nqv5a9brdzXuwQamrHxpMztFVMWxZqGXNTDubNBN1I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1408bUZ3LXJ/N77c4bG1b9sMo+aM6oUUNHjfeuz+9noq7VPDwm1PCO8tfPZ+yOXcY 8KYxGLN8dLOz3MKdc1Mn+ZTiPF6NXHVkmEG1E5QBCW0JETIr4bSSsiafccObz6kdcX iiIQKBEbVMzPcn84chDFEyEaTkIlwCl8p+KhrczE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Wei Huang , "Rafael J. Wysocki" Subject: [PATCH 4.4 38/86] acpi-cpufreq: Honor _PSD table setting on new AMD CPUs Date: Mon, 9 Nov 2020 13:54:45 +0100 Message-Id: <20201109125022.686334331@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201109125020.852643676@linuxfoundation.org> References: <20201109125020.852643676@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Wei Huang commit 5368512abe08a28525d9b24abbfc2a72493e8dba upstream. acpi-cpufreq has a old quirk that overrides the _PSD table supplied by BIOS on AMD CPUs. However the _PSD table of new AMD CPUs (Family 19h+) now accurately reports the P-state dependency of CPU cores. Hence this quirk needs to be fixed in order to support new CPUs' frequency control. Fixes: acd316248205 ("acpi-cpufreq: Add quirk to disable _PSD usage on all AMD CPUs") Signed-off-by: Wei Huang [ rjw: Subject edit ] Cc: 3.10+ # 3.10+ Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/cpufreq/acpi-cpufreq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/cpufreq/acpi-cpufreq.c +++ b/drivers/cpufreq/acpi-cpufreq.c @@ -713,7 +713,8 @@ static int acpi_cpufreq_cpu_init(struct cpumask_copy(policy->cpus, topology_core_cpumask(cpu)); } - if (check_amd_hwpstate_cpu(cpu) && !acpi_pstate_strict) { + if (check_amd_hwpstate_cpu(cpu) && boot_cpu_data.x86 < 0x19 && + !acpi_pstate_strict) { cpumask_clear(policy->cpus); cpumask_set_cpu(cpu, policy->cpus); cpumask_copy(data->freqdomain_cpus,