From patchwork Tue Dec 27 08:24:18 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Zhao X-Patchwork-Id: 5985 Return-Path: X-Original-To: patchwork@peony.canonical.com Delivered-To: patchwork@peony.canonical.com Received: from fiordland.canonical.com (fiordland.canonical.com [91.189.94.145]) by peony.canonical.com (Postfix) with ESMTP id 4E27923E0E for ; Tue, 27 Dec 2011 08:24:55 +0000 (UTC) Received: from mail-ey0-f180.google.com (mail-ey0-f180.google.com [209.85.215.180]) by fiordland.canonical.com (Postfix) with ESMTP id 45A56A18565 for ; Tue, 27 Dec 2011 08:24:55 +0000 (UTC) Received: by mail-ey0-f180.google.com with SMTP id c11so9686228eaa.11 for ; Tue, 27 Dec 2011 00:24:55 -0800 (PST) Received: by 10.204.133.207 with SMTP id g15mr6625377bkt.17.1324974295080; Tue, 27 Dec 2011 00:24:55 -0800 (PST) X-Forwarded-To: linaro-patchwork@canonical.com X-Forwarded-For: patch@linaro.org linaro-patchwork@canonical.com Delivered-To: patches@linaro.org Received: by 10.205.82.144 with SMTP id ac16cs166095bkc; Tue, 27 Dec 2011 00:24:54 -0800 (PST) Received: by 10.180.106.165 with SMTP id gv5mr59095410wib.18.1324974293637; Tue, 27 Dec 2011 00:24:53 -0800 (PST) Received: from AM1EHSOBE001.bigfish.com (am1ehsobe001.messaging.microsoft.com. [213.199.154.204]) by mx.google.com with ESMTPS id ec10si24917015wib.49.2011.12.27.00.24.53 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 27 Dec 2011 00:24:53 -0800 (PST) Received-SPF: neutral (google.com: 213.199.154.204 is neither permitted nor denied by best guess record for domain of richard.zhao@linaro.org) client-ip=213.199.154.204; Authentication-Results: mx.google.com; spf=neutral (google.com: 213.199.154.204 is neither permitted nor denied by best guess record for domain of richard.zhao@linaro.org) smtp.mail=richard.zhao@linaro.org Received: from mail88-am1-R.bigfish.com (10.3.201.243) by AM1EHSOBE001.bigfish.com (10.3.204.21) with Microsoft SMTP Server id 14.1.225.23; Tue, 27 Dec 2011 08:24:34 +0000 Received: from mail88-am1 (localhost [127.0.0.1]) by mail88-am1-R.bigfish.com (Postfix) with ESMTP id 14D46700516; Tue, 27 Dec 2011 08:23:11 +0000 (UTC) X-SpamScore: 0 X-BigFish: VS0(zzzz1202hzz8275dhz2dh87h2a8h668h839h) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-FB-DOMAIN-IP-MATCH: fail Received: from mail88-am1 (localhost.localdomain [127.0.0.1]) by mail88-am1 (MessageSwitch) id 1324974190953062_30823; Tue, 27 Dec 2011 08:23:10 +0000 (UTC) Received: from AM1EHSMHS012.bigfish.com (unknown [10.3.201.251]) by mail88-am1.bigfish.com (Postfix) with ESMTP id D722A6C0048; Tue, 27 Dec 2011 08:23:10 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by AM1EHSMHS012.bigfish.com (10.3.207.112) with Microsoft SMTP Server (TLS) id 14.1.225.23; Tue, 27 Dec 2011 08:24:32 +0000 Received: from az33smr01.freescale.net (10.64.34.199) by 039-SN1MMR1-001.039d.mgd.msft.net (10.84.1.13) with Microsoft SMTP Server id 14.1.355.3; Tue, 27 Dec 2011 02:24:49 -0600 Received: from b20223-02.ap.freescale.net (b20223-02.ap.freescale.net [10.192.242.124]) by az33smr01.freescale.net (8.13.1/8.13.0) with ESMTP id pBR8OPHx028996; Tue, 27 Dec 2011 02:24:44 -0600 (CST) From: Richard Zhao To: , , CC: , , , , , , , , , , , , , , , , , Richard Zhao Subject: [PATCH V5 3/7] cpufreq: OMAP: remove loops_per_jiffy recalculate for smp Date: Tue, 27 Dec 2011 16:24:18 +0800 Message-ID: <1324974262-30963-4-git-send-email-richard.zhao@linaro.org> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1324974262-30963-1-git-send-email-richard.zhao@linaro.org> References: <1324974262-30963-1-git-send-email-richard.zhao@linaro.org> MIME-Version: 1.0 X-OriginatorOrg: sigmatel.com arm registered cpufreq transition notifier to recalculate it. Signed-off-by: Richard Zhao --- drivers/cpufreq/omap-cpufreq.c | 36 ------------------------------------ 1 files changed, 0 insertions(+), 36 deletions(-) diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c index 5d04c57..17da4c4 100644 --- a/drivers/cpufreq/omap-cpufreq.c +++ b/drivers/cpufreq/omap-cpufreq.c @@ -37,16 +37,6 @@ #include -#ifdef CONFIG_SMP -struct lpj_info { - unsigned long ref; - unsigned int freq; -}; - -static DEFINE_PER_CPU(struct lpj_info, lpj_ref); -static struct lpj_info global_lpj_ref; -#endif - static struct cpufreq_frequency_table *freq_table; static atomic_t freq_table_users = ATOMIC_INIT(0); static struct clk *mpu_clk; @@ -118,32 +108,6 @@ static int omap_target(struct cpufreq_policy *policy, ret = clk_set_rate(mpu_clk, freqs.new * 1000); freqs.new = omap_getspeed(policy->cpu); -#ifdef CONFIG_SMP - /* - * Note that loops_per_jiffy is not updated on SMP systems in - * cpufreq driver. So, update the per-CPU loops_per_jiffy value - * on frequency transition. We need to update all dependent CPUs. - */ - for_each_cpu(i, policy->cpus) { - struct lpj_info *lpj = &per_cpu(lpj_ref, i); - if (!lpj->freq) { - lpj->ref = per_cpu(cpu_data, i).loops_per_jiffy; - lpj->freq = freqs.old; - } - - per_cpu(cpu_data, i).loops_per_jiffy = - cpufreq_scale(lpj->ref, lpj->freq, freqs.new); - } - - /* And don't forget to adjust the global one */ - if (!global_lpj_ref.freq) { - global_lpj_ref.ref = loops_per_jiffy; - global_lpj_ref.freq = freqs.old; - } - loops_per_jiffy = cpufreq_scale(global_lpj_ref.ref, global_lpj_ref.freq, - freqs.new); -#endif - /* notifiers */ for_each_cpu(i, policy->cpus) { freqs.cpu = i;