From patchwork Tue Mar 8 09:31:20 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: plongepe X-Patchwork-Id: 8531041 Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 78C02C0553 for ; Tue, 8 Mar 2016 09:30:32 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9540220165 for ; Tue, 8 Mar 2016 09:30:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9B74B200E8 for ; Tue, 8 Mar 2016 09:30:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932366AbcCHJa2 (ORCPT ); Tue, 8 Mar 2016 04:30:28 -0500 Received: from mga02.intel.com ([134.134.136.20]:32312 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932291AbcCHJa2 (ORCPT ); Tue, 8 Mar 2016 04:30:28 -0500 Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga101.jf.intel.com with ESMTP; 08 Mar 2016 01:30:27 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.22,556,1449561600"; d="scan'208";a="665708980" Received: from tllab185.tl.intel.com ([10.102.161.63]) by FMSMGA003.fm.intel.com with ESMTP; 08 Mar 2016 01:30:20 -0800 From: Philippe Longepe To: linux-pm@vger.kernel.org Cc: srinivas.pandruvada@linux.intel.com, rafael@kernel.org Subject: [PATCH V6 4/4] intel_pstate: Remove the freq calculation from the intel_pstate_calc_busy function Date: Tue, 8 Mar 2016 10:31:20 +0100 Message-Id: <1457429481-13283-9-git-send-email-philippe.longepe@linux.intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1457429481-13283-1-git-send-email-philippe.longepe@linux.intel.com> References: <1457429481-13283-1-git-send-email-philippe.longepe@linux.intel.com> Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Use a helper function to compute the average pstate and call it only where it is needed (only when tracing or in intel_pstate_get). Signed-off-by: Philippe Longepe --- drivers/cpufreq/intel_pstate.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 903341f..6e07366 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -878,12 +878,6 @@ static inline void intel_pstate_calc_busy(struct cpudata *cpu) core_pct = int_tofp(sample->aperf) * int_tofp(100); core_pct = div64_u64(core_pct, int_tofp(sample->mperf)); - sample->freq = fp_toint( - mul_fp(int_tofp( - cpu->pstate.max_pstate_physical * - cpu->pstate.scaling / 100), - core_pct)); - sample->core_pct_busy = (int32_t)core_pct; } @@ -917,6 +911,12 @@ static inline void intel_pstate_sample(struct cpudata *cpu, u64 time) cpu->prev_tsc = tsc; } +static inline int32_t get_avg_frequency(struct cpudata *cpu) +{ + return div64_u64(cpu->pstate.max_pstate_physical * cpu->sample.aperf * + cpu->pstate.scaling, cpu->sample.mperf); +} + static inline int32_t get_target_pstate_use_cpu_load(struct cpudata *cpu) { struct sample *sample = &cpu->sample; @@ -1012,7 +1012,7 @@ static inline void intel_pstate_adjust_busy_pstate(struct cpudata *cpu) sample->mperf, sample->aperf, sample->tsc, - sample->freq); + get_avg_frequency(cpu)); } static void intel_pstate_update_util(struct update_util_data *data, u64 time, @@ -1101,7 +1101,7 @@ static unsigned int intel_pstate_get(unsigned int cpu_num) if (!cpu) return 0; sample = &cpu->sample; - return sample->freq; + return get_avg_frequency(cpu); } static int intel_pstate_set_policy(struct cpufreq_policy *policy)