From patchwork Mon Dec 19 03:21:39 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Zhao X-Patchwork-Id: 5852 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 AD7A623E33 for ; Mon, 19 Dec 2011 03:22:16 +0000 (UTC) Received: from mail-ee0-f52.google.com (mail-ee0-f52.google.com [74.125.83.52]) by fiordland.canonical.com (Postfix) with ESMTP id A1AEDA18009 for ; Mon, 19 Dec 2011 03:22:16 +0000 (UTC) Received: by eeke52 with SMTP id e52so5387568eek.11 for ; Sun, 18 Dec 2011 19:22:16 -0800 (PST) Received: by 10.205.138.136 with SMTP id is8mr922827bkc.35.1324264936404; Sun, 18 Dec 2011 19:22:16 -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 10.204.40.4 with SMTP id i4cs114017bke; Sun, 18 Dec 2011 19:22:16 -0800 (PST) Received: by 10.220.155.147 with SMTP id s19mr8625192vcw.14.1324264934357; Sun, 18 Dec 2011 19:22:14 -0800 (PST) Received: from ch1outboundpool.messaging.microsoft.com (ch1ehsobe005.messaging.microsoft.com. [216.32.181.185]) by mx.google.com with ESMTPS id m2si3996237vcm.101.2011.12.18.19.22.13 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 18 Dec 2011 19:22:14 -0800 (PST) Received-SPF: neutral (google.com: 216.32.181.185 is neither permitted nor denied by best guess record for domain of richard.zhao@linaro.org) client-ip=216.32.181.185; Authentication-Results: mx.google.com; spf=neutral (google.com: 216.32.181.185 is neither permitted nor denied by best guess record for domain of richard.zhao@linaro.org) smtp.mail=richard.zhao@linaro.org Received: from mail90-ch1-R.bigfish.com (10.43.68.250) by CH1EHSOBE002.bigfish.com (10.43.70.52) with Microsoft SMTP Server id 14.1.225.23; Mon, 19 Dec 2011 03:22:08 +0000 Received: from mail90-ch1 (localhost [127.0.0.1]) by mail90-ch1-R.bigfish.com (Postfix) with ESMTP id 6B3292016B; Mon, 19 Dec 2011 03:22:28 +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 mail90-ch1 (localhost.localdomain [127.0.0.1]) by mail90-ch1 (MessageSwitch) id 132426494642129_6862; Mon, 19 Dec 2011 03:22:26 +0000 (UTC) Received: from CH1EHSMHS010.bigfish.com (snatpool1.int.messaging.microsoft.com [10.43.68.249]) by mail90-ch1.bigfish.com (Postfix) with ESMTP id ECB0F700047; Mon, 19 Dec 2011 03:22:25 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by CH1EHSMHS010.bigfish.com (10.43.70.10) with Microsoft SMTP Server (TLS) id 14.1.225.22; Mon, 19 Dec 2011 03:22:05 +0000 Received: from az33smr01.freescale.net (10.64.34.199) by 039-SN1MMR1-002.039d.mgd.msft.net (10.84.1.15) with Microsoft SMTP Server id 14.1.355.3; Sun, 18 Dec 2011 21:22:09 -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 pBJ3Lklj028688; Sun, 18 Dec 2011 21:22:04 -0600 (CST) From: Richard Zhao To: , , CC: , , , , , , , , , , , , , , , , , Richard Zhao Subject: [PATCH V3 3/7] cpufreq: OMAP: remove loops_per_jiffy recalculate for smp Date: Mon, 19 Dec 2011 11:21:39 +0800 Message-ID: <1324264903-15395-4-git-send-email-richard.zhao@linaro.org> X-Mailer: git-send-email 1.7.5.4 In-Reply-To: <1324264903-15395-1-git-send-email-richard.zhao@linaro.org> References: <1324264903-15395-1-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;