From patchwork Wed Sep 12 09:55:29 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean Pihet X-Patchwork-Id: 1441871 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (unknown [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id 916AB3FE79 for ; Wed, 12 Sep 2012 10:06:29 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TBjgh-0006s6-9S; Wed, 12 Sep 2012 09:56:52 +0000 Received: from mail-wi0-f177.google.com ([209.85.212.177]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1TBjfm-0006gy-Te for linux-arm-kernel@lists.infradead.org; Wed, 12 Sep 2012 09:56:00 +0000 Received: by wibhn17 with SMTP id hn17so1291345wib.0 for ; Wed, 12 Sep 2012 02:55:53 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references :x-gm-message-state; bh=EmWgFEK5vWCns2Q635n30uCKGlyq89pfG/JIvVYPGjQ=; b=kssjTpZTS5sXCNYLveL8l+Eul5i/Ay9uqeAqb4LsAeqbFygnSJtHVLq41gfHCqqHNM /CRQsonVtLK335Kerwz9ADHSnBAApfioaVNq1g5aQbuk83CIYwsmxqhmTjQTOn1OPC9S Y9XbkGWCO00BMzF63pnf7wQcOD9hYgehYwbOoRD4T6ah7OVCmqj1fuxy/9wHbfPwl8hv z0I2gGdI2AXSIT2KzQZCjmh/iTovxUp1Ekq9NxnxBarlPIOqephzV0tjdY9PbeejlO9R ZAAojgs+8050xFo3ngZ90/nbGw++vpEOXt8BpI13jb89qFYKwvGiYemHMxEavwfPPq0X bffw== Received: by 10.216.133.148 with SMTP id q20mr10720594wei.201.1347443753003; Wed, 12 Sep 2012 02:55:53 -0700 (PDT) Received: from localhost.localdomain (52.60-66-87.adsl-dyn.isp.belgacom.be. [87.66.60.52]) by mx.google.com with ESMTPS id w7sm7312997wiz.0.2012.09.12.02.55.51 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 12 Sep 2012 02:55:52 -0700 (PDT) From: Jean Pihet To: linux-omap@vger.kernel.org, paul@pwsan.com, linux-arm-kernel@lists.infradead.org, khilman@ti.com, Benoit Cousson , Santosh Shilimkar , Nishanth Menon , Rajendra Nayak Subject: [PATCH 4/7] ARM: OMAP2+: PM: use power domain functional state in stats counters Date: Wed, 12 Sep 2012 11:55:29 +0200 Message-Id: <1347443732-7411-5-git-send-email-j-pihet@ti.com> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: <1347443732-7411-1-git-send-email-j-pihet@ti.com> References: <1347443732-7411-1-git-send-email-j-pihet@ti.com> X-Gm-Message-State: ALoCoQlMgZTD6YMgobAO2FHnYx/e1/pRQqE8sjlWg4eaMi9Bh7rhH5luleyeXuPdFOXznxcKeRzb X-Spam-Note: CRM114 invocation failed X-Spam-Score: -2.6 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [209.85.212.177 listed in list.dnswl.org] -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Jean Pihet X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The PM code uses some counters to keep track of the power domains transitions, in order to provide the information to drivers (in pwrdm_get_context_loss_count) and to expose the information to sysfs for debug purpose. This patch provides the information for each functional state. Signed-off-by: Jean Pihet --- arch/arm/mach-omap2/pm-debug.c | 15 ++++++++------- arch/arm/mach-omap2/powerdomain.c | 12 ++++++------ arch/arm/mach-omap2/powerdomain.h | 4 ++-- 3 files changed, 16 insertions(+), 15 deletions(-) diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c index 814bcd9..8eaa3f2 100644 --- a/arch/arm/mach-omap2/pm-debug.c +++ b/arch/arm/mach-omap2/pm-debug.c @@ -53,9 +53,10 @@ enum { DEBUG_FILE_TIMERS, }; -static const char pwrdm_state_names[][PWRDM_MAX_PWRSTS] = { +static const char pwrdm_state_names[][PWRDM_MAX_FUNC_PWRSTS] = { "OFF", - "RET", + "OSWR", + "CSWR", "INA", "ON" }; @@ -102,13 +103,13 @@ static int pwrdm_dbg_show_counter(struct powerdomain *pwrdm, void *user) strncmp(pwrdm->name, "dpll", 4) == 0) return 0; - if (pwrdm->state != pwrdm_read_pwrst(pwrdm)) + if (pwrdm->state != pwrdm_read_fpwrst(pwrdm)) printk(KERN_ERR "pwrdm state mismatch(%s) %d != %d\n", - pwrdm->name, pwrdm->state, pwrdm_read_pwrst(pwrdm)); + pwrdm->name, pwrdm->state, pwrdm_read_fpwrst(pwrdm)); seq_printf(s, "%s (%s)", pwrdm->name, pwrdm_state_names[pwrdm->state]); - for (i = 0; i < PWRDM_MAX_PWRSTS; i++) + for (i = 0; i < PWRDM_MAX_FUNC_PWRSTS; i++) seq_printf(s, ",%s:%d", pwrdm_state_names[i], pwrdm->state_counter[i]); @@ -137,7 +138,7 @@ static int pwrdm_dbg_show_timer(struct powerdomain *pwrdm, void *user) seq_printf(s, "%s (%s)", pwrdm->name, pwrdm_state_names[pwrdm->state]); - for (i = 0; i < 4; i++) + for (i = 0; i < PWRDM_MAX_FUNC_PWRSTS; i++) seq_printf(s, ",%s:%lld", pwrdm_state_names[i], pwrdm->state_timer[i]); @@ -211,7 +212,7 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *dir) t = sched_clock(); - for (i = 0; i < 4; i++) + for (i = 0; i < PWRDM_MAX_FUNC_PWRSTS; i++) pwrdm->state_timer[i] = 0; pwrdm->timer = t; diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c index 82ae9e9..267241f 100644 --- a/arch/arm/mach-omap2/powerdomain.c +++ b/arch/arm/mach-omap2/powerdomain.c @@ -106,7 +106,7 @@ static int _pwrdm_register(struct powerdomain *pwrdm) list_add(&pwrdm->node, &pwrdm_list); /* Initialize the powerdomain's state counter */ - for (i = 0; i < PWRDM_MAX_PWRSTS; i++) + for (i = 0; i < PWRDM_MAX_FUNC_PWRSTS; i++) pwrdm->state_counter[i] = 0; pwrdm->ret_logic_off_counter = 0; @@ -114,7 +114,7 @@ static int _pwrdm_register(struct powerdomain *pwrdm) pwrdm->ret_mem_off_counter[i] = 0; pwrdm_wait_transition(pwrdm); - pwrdm->state = pwrdm_read_pwrst(pwrdm); + pwrdm->state = pwrdm_read_fpwrst(pwrdm); pwrdm->state_counter[pwrdm->state] = 1; pr_debug("powerdomain: registered %s\n", pwrdm->name); @@ -149,17 +149,17 @@ static int _pwrdm_state_switch(struct powerdomain *pwrdm, int flag) if (pwrdm == NULL) return -EINVAL; - state = pwrdm_read_pwrst(pwrdm); + state = pwrdm_read_fpwrst(pwrdm); switch (flag) { case PWRDM_STATE_NOW: prev = pwrdm->state; break; case PWRDM_STATE_PREV: - prev = pwrdm_read_prev_pwrst(pwrdm); + prev = pwrdm_read_prev_fpwrst(pwrdm); if (pwrdm->state != prev) pwrdm->state_counter[prev]++; - if (prev == PWRDM_POWER_RET) + if (prev == PWRDM_FUNC_PWRST_OSWR) _update_logic_membank_counters(pwrdm); /* * If the power domain did not hit the desired state, @@ -1414,7 +1414,7 @@ int pwrdm_get_context_loss_count(struct powerdomain *pwrdm) return -ENODEV; } - count = pwrdm->state_counter[PWRDM_POWER_OFF]; + count = pwrdm->state_counter[PWRDM_FUNC_PWRST_OFF]; count += pwrdm->ret_logic_off_counter; for (i = 0; i < pwrdm->banks; i++) diff --git a/arch/arm/mach-omap2/powerdomain.h b/arch/arm/mach-omap2/powerdomain.h index c3dc363..a29caec 100644 --- a/arch/arm/mach-omap2/powerdomain.h +++ b/arch/arm/mach-omap2/powerdomain.h @@ -146,7 +146,7 @@ struct powerdomain { struct list_head voltdm_node; spinlock_t lock; int state; - unsigned state_counter[PWRDM_MAX_PWRSTS]; + unsigned state_counter[PWRDM_MAX_FUNC_PWRSTS]; unsigned ret_logic_off_counter; unsigned ret_mem_off_counter[PWRDM_MAX_MEM_BANKS]; @@ -160,7 +160,7 @@ struct powerdomain { #ifdef CONFIG_PM_DEBUG s64 timer; - s64 state_timer[PWRDM_MAX_PWRSTS]; + s64 state_timer[PWRDM_MAX_FUNC_PWRSTS]; #endif };