From patchwork Thu Mar 12 09:25:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Harry Pan X-Patchwork-Id: 11433701 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 912E3921 for ; Thu, 12 Mar 2020 09:25:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 747A1206FA for ; Thu, 12 Mar 2020 09:25:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726385AbgCLJZ2 (ORCPT ); Thu, 12 Mar 2020 05:25:28 -0400 Received: from mga07.intel.com ([134.134.136.100]:15029 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726194AbgCLJZ1 (ORCPT ); Thu, 12 Mar 2020 05:25:27 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Mar 2020 02:25:26 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,544,1574150400"; d="scan'208";a="322413259" Received: from schin20-mobl2.gar.corp.intel.com (HELO M5530.gar.corp.intel.com) ([10.249.69.254]) by orsmga001.jf.intel.com with ESMTP; 12 Mar 2020 02:25:24 -0700 From: Harry Pan To: LKML Cc: gs0622@gmail.com, Harry Pan , Jacob Pan , Len Brown , linux-pm@vger.kernel.org Subject: [PATCH v5] intel_idle: Add Comet Lake support Date: Thu, 12 Mar 2020 17:25:20 +0800 Message-Id: <20200312172457.1.I108734f38ade020c3e5da825839dca11d2a2ff87@changeid> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200304194312.1.I108734f38ade020c3e5da825839dca11d2a2ff87@changeid> References: <20200304194312.1.I108734f38ade020c3e5da825839dca11d2a2ff87@changeid> MIME-Version: 1.0 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Add built-in idle states table for Comet Lake. This patch also respects the exposed ACPI _CST objects in platform firmware to disable those non-matching C-state by default, defer its enabling to the userspace through sysfs. Summary: - With built-in table and without _CST table, all C-states are enabled - With both built-in and _CST tables, matching C-states are enabled Signed-off-by: Harry Pan --- drivers/idle/intel_idle.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index d55606608ac8..49b385c36eea 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -1067,6 +1067,12 @@ static const struct idle_cpu idle_cpu_dnv = { .use_acpi = true, }; +static const struct idle_cpu idle_cpu_cml = { + .state_table = skl_cstates, + .disable_promotion_to_c1e = true, + .use_acpi = true, +}; + static const struct x86_cpu_id intel_idle_ids[] __initconst = { INTEL_CPU_FAM6(NEHALEM_EP, idle_cpu_nhx), INTEL_CPU_FAM6(NEHALEM, idle_cpu_nehalem), @@ -1105,6 +1111,8 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = { INTEL_CPU_FAM6(ATOM_GOLDMONT_PLUS, idle_cpu_bxt), INTEL_CPU_FAM6(ATOM_GOLDMONT_D, idle_cpu_dnv), INTEL_CPU_FAM6(ATOM_TREMONT_D, idle_cpu_dnv), + INTEL_CPU_FAM6(COMETLAKE_L, idle_cpu_cml), + INTEL_CPU_FAM6(COMETLAKE, idle_cpu_cml), {} };