From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752630Ab3KIFdf (ORCPT ); Sat, 9 Nov 2013 00:33:35 -0500 Received: from mail-qe0-f53.google.com ([209.85.128.53]:39837 "EHLO mail-qe0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752270Ab3KIFdb (ORCPT ); Sat, 9 Nov 2013 00:33:31 -0500 From: Len Brown To: rjw@sisk.pl Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Len Brown Subject: [PATCH 2/2] intel_idle: Support Intel Atom Processor C2000 Product Family Date: Sat, 9 Nov 2013 00:30:17 -0500 Message-Id: X-Mailer: git-send-email 1.8.4 In-Reply-To: References: In-Reply-To: References: Reply-To: Len Brown Organization: Intel Open Source Technology Center Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Len Brown Support the "Intel(R) Atom(TM) Processor C2000 Product Family", formerly code-named Avoton. It is based on the next generation Intel Atom processor architecture, formerly code-named Silvermont. Signed-off-by: Len Brown --- drivers/idle/intel_idle.c | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index fa6964d..2fea107 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -1,7 +1,7 @@ /* * intel_idle.c - native hardware idle loop for modern Intel processors * - * Copyright (c) 2010, Intel Corporation. + * Copyright (c) 2013, Intel Corporation. * Len Brown * * This program is free software; you can redistribute it and/or modify it @@ -329,6 +329,22 @@ static struct cpuidle_state atom_cstates[CPUIDLE_STATE_MAX] = { { .enter = NULL } }; +static struct cpuidle_state avn_cstates[CPUIDLE_STATE_MAX] = { + { + .name = "C1-AVN", + .desc = "MWAIT 0x00", + .flags = MWAIT2flg(0x00) | CPUIDLE_FLAG_TIME_VALID, + .exit_latency = 2, + .target_residency = 2, + .enter = &intel_idle }, + { + .name = "C6-AVN", + .desc = "MWAIT 0x51", + .flags = MWAIT2flg(0x58) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 15, + .target_residency = 45, + .enter = &intel_idle }, +}; /** * intel_idle @@ -462,6 +478,11 @@ static const struct idle_cpu idle_cpu_hsw = { .disable_promotion_to_c1e = true, }; +static const struct idle_cpu idle_cpu_avn = { + .state_table = avn_cstates, + .disable_promotion_to_c1e = true, +}; + #define ICPU(model, cpu) \ { X86_VENDOR_INTEL, 6, model, X86_FEATURE_MWAIT, (unsigned long)&cpu } @@ -483,6 +504,7 @@ static const struct x86_cpu_id intel_idle_ids[] = { ICPU(0x3f, idle_cpu_hsw), ICPU(0x45, idle_cpu_hsw), ICPU(0x46, idle_cpu_hsw), + ICPU(0x4D, idle_cpu_avn), {} }; MODULE_DEVICE_TABLE(x86cpu, intel_idle_ids); -- 1.8.4