From patchwork Wed Jan 20 21:12:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 1429488 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=lNXdLU+D; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4DLhyz0kvRz9sRR for ; Thu, 21 Jan 2021 10:47:39 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727785AbhATVZa (ORCPT ); Wed, 20 Jan 2021 16:25:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57784 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728375AbhATVYv (ORCPT ); Wed, 20 Jan 2021 16:24:51 -0500 Received: from mail-lf1-x12b.google.com (mail-lf1-x12b.google.com [IPv6:2a00:1450:4864:20::12b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D7AC9C061757; Wed, 20 Jan 2021 13:13:52 -0800 (PST) Received: by mail-lf1-x12b.google.com with SMTP id q8so4482322lfm.10; Wed, 20 Jan 2021 13:13:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=BZyyjughXVQWOCamHA5hQecx4dkH4WA782c6u3ykaXc=; b=lNXdLU+DdJmsFQjB9xuWEX+44vbJRXDESQMP0PnyNXhcDw1LzXMoH9NgAD5Y2lLERK 8NtGccxUAflMbyVJTda4y78/TK+fILB6BEWDbgaP0BUHxqEI718k8zgp3BivIOj1baoB VvsEMyh4hF7ouTF2nD/s3sni86dWT9I2qvPaXlHBzw+r1TJEutIKLxfj1QWTWCwQFauH /IK/7nEpxiChvfHROpN/yuWq25KmDGR/4SHjHVE1lVpUfu9LvBivFM/xlv5wspMJEzjI tOx3J9/715C63VncN4BP6m0BZYrtYlsI1w3EOLs62DoqeCUFYuxZvi2cgyYm5iQne2WT +M2w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=BZyyjughXVQWOCamHA5hQecx4dkH4WA782c6u3ykaXc=; b=khK1eJ06jRs9PJT1BtnMV67czSbsobmX2X7EUJt+0+9hn7wDtnbFdho2c4Ef9zG0hb JVyvMWNIkGFPteDzgSpEMg1wTUtCsjqjSNtSwljztIP7ZcgnV3D7XpTmEZfa+NvYe+T5 t0zlxha8IrqQQ2xLKrqHQ3VeeqFdRWzloAgQVcLyt1tCPUccQYUOXDmYTiCzwrPBoprm 4y8FCHJqQ9rUGY2Gz8xn7SNdxR+XiTyjDWguMm4PCiQnmcfOYc7MKzh7kQRDKiTqSOjG KWu+J7kBt85qmgNN1o3Iy2+w7QXWl0zXCGLdvfe9UrPfKsINdcIjhZ85oq+hN1z2P88G DNJQ== X-Gm-Message-State: AOAM533+NWyhQ8KS7l/yyZ4E1AGIa1Pcl/xiqQ+u7sjcmxUllmY2Vu+Y hcTYkehyhSiB8NniDVNYxBQ= X-Google-Smtp-Source: ABdhPJwkj0Lo/eNGpw4KKAwbidgNRUzYBBJG1SH49hWuruG5tXCvSHBQJ9EX265XlHQnFeGrtKVJ6Q== X-Received: by 2002:a05:6512:3ea:: with SMTP id n10mr5034842lfq.535.1611177231423; Wed, 20 Jan 2021 13:13:51 -0800 (PST) Received: from localhost.localdomain (109-252-192-57.dynamic.spd-mgts.ru. [109.252.192.57]) by smtp.gmail.com with ESMTPSA id 196sm298131lfj.219.2021.01.20.13.13.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Jan 2021 13:13:50 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Ulf Hansson , Peter Geis , Nicolas Chauvet , "Rafael J. Wysocki" , Kevin Hilman , Peter De Schrijver , Viresh Kumar , Stephen Boyd , Greg Kroah-Hartman , Matt Merhar Cc: linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v5 1/3] PM: domains: Make set_performance_state() callback optional Date: Thu, 21 Jan 2021 00:12:30 +0300 Message-Id: <20210120211232.17299-2-digetx@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210120211232.17299-1-digetx@gmail.com> References: <20210120211232.17299-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org Make set_performance_state() callback optional in order to remove the need from power domain drivers to implement a dummy callback. If callback isn't implemented by a GENPD driver, then the performance state is passed to the parent domain. Tested-by: Peter Geis Tested-by: Nicolas Chauvet Tested-by: Matt Merhar [tested on NVIDIA Tegra20/30/124 SoCs] Suggested-by: Ulf Hansson Reviewed-by: Ulf Hansson Signed-off-by: Dmitry Osipenko Reviewed-by: Viresh Kumar --- drivers/base/power/domain.c | 33 ++++++++++++++++++--------------- 1 file changed, 18 insertions(+), 15 deletions(-) diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 9a14eedacb92..5c843772f7f4 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -297,6 +297,18 @@ static int _genpd_reeval_performance_state(struct generic_pm_domain *genpd, return state; } +static int genpd_xlate_performance_state(struct generic_pm_domain *genpd, + struct generic_pm_domain *parent, + unsigned int pstate) +{ + if (!parent->set_performance_state) + return pstate; + + return dev_pm_opp_xlate_performance_state(genpd->opp_table, + parent->opp_table, + pstate); +} + static int _genpd_set_performance_state(struct generic_pm_domain *genpd, unsigned int state, int depth) { @@ -311,13 +323,8 @@ static int _genpd_set_performance_state(struct generic_pm_domain *genpd, list_for_each_entry(link, &genpd->child_links, child_node) { parent = link->parent; - if (!parent->set_performance_state) - continue; - /* Find parent's performance state */ - ret = dev_pm_opp_xlate_performance_state(genpd->opp_table, - parent->opp_table, - state); + ret = genpd_xlate_performance_state(genpd, parent, state); if (unlikely(ret < 0)) goto err; @@ -339,9 +346,11 @@ static int _genpd_set_performance_state(struct generic_pm_domain *genpd, goto err; } - ret = genpd->set_performance_state(genpd, state); - if (ret) - goto err; + if (genpd->set_performance_state) { + ret = genpd->set_performance_state(genpd, state); + if (ret) + goto err; + } genpd->performance_state = state; return 0; @@ -352,9 +361,6 @@ static int _genpd_set_performance_state(struct generic_pm_domain *genpd, child_node) { parent = link->parent; - if (!parent->set_performance_state) - continue; - genpd_lock_nested(parent, depth + 1); parent_state = link->prev_performance_state; @@ -399,9 +405,6 @@ int dev_pm_genpd_set_performance_state(struct device *dev, unsigned int state) if (!genpd) return -ENODEV; - if (unlikely(!genpd->set_performance_state)) - return -EINVAL; - if (WARN_ON(!dev->power.subsys_data || !dev->power.subsys_data->domain_data)) return -EINVAL; From patchwork Wed Jan 20 21:12:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 1429489 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=jQQjUnLM; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4DLhz55gSzz9sRR for ; Thu, 21 Jan 2021 10:47:45 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732721AbhATVZi (ORCPT ); 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[109.252.192.57]) by smtp.gmail.com with ESMTPSA id 196sm298131lfj.219.2021.01.20.13.13.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Jan 2021 13:13:52 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Ulf Hansson , Peter Geis , Nicolas Chauvet , "Rafael J. Wysocki" , Kevin Hilman , Peter De Schrijver , Viresh Kumar , Stephen Boyd , Greg Kroah-Hartman , Matt Merhar Cc: linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v5 2/3] PM: domains: Make of_genpd_add_subdomain() to return -EPROBE_DEFER Date: Thu, 21 Jan 2021 00:12:31 +0300 Message-Id: <20210120211232.17299-3-digetx@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210120211232.17299-1-digetx@gmail.com> References: <20210120211232.17299-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org Driver of a power domain provider may not be ready at the time of of_genpd_add_subdomain() invocation. Make this function to return -EPROBE_DEFER instead of -ENOENT in order to remove a need from power domain drivers to handle the error code specially. Tested-by: Peter Geis Tested-by: Nicolas Chauvet Tested-by: Matt Merhar [tested on NVIDIA Tegra20/30/124 SoCs] Suggested-by: Ulf Hansson Reviewed-by: Ulf Hansson Reviewed-by: Viresh Kumar Signed-off-by: Dmitry Osipenko --- drivers/base/power/domain.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 5c843772f7f4..25b346bb2d97 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -2466,7 +2466,7 @@ int of_genpd_add_subdomain(struct of_phandle_args *parent_spec, out: mutex_unlock(&gpd_list_lock); - return ret; + return ret == -ENOENT ? -EPROBE_DEFER : ret; } EXPORT_SYMBOL_GPL(of_genpd_add_subdomain); From patchwork Wed Jan 20 21:12:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 1429453 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-tegra-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=EmysAZqH; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4DLdqG4GTfz9sVX for ; Thu, 21 Jan 2021 08:25:46 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732522AbhATVZ0 (ORCPT ); Wed, 20 Jan 2021 16:25:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57780 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727081AbhATVYv (ORCPT ); Wed, 20 Jan 2021 16:24:51 -0500 Received: from mail-lf1-x12f.google.com (mail-lf1-x12f.google.com [IPv6:2a00:1450:4864:20::12f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07248C0613CF; Wed, 20 Jan 2021 13:13:55 -0800 (PST) Received: by mail-lf1-x12f.google.com with SMTP id v67so36099853lfa.0; Wed, 20 Jan 2021 13:13:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=KjwS82fYqqkv4xPlnla6S9j26In+4jWKlglRsnCKUho=; b=EmysAZqHCtHWslXxtghv190tfnK9KVVE01KhsXjEV21KwwZ8fvmvnbV9bozew3fksr BRNtH8BL0tIuVGNWzvn18YPp6GhXZQPjKPDIBlR9z4lFbOGIVRPBpHLsPmi4iH2Lmcx8 Vrsu8jLBHyBFjRb/RVLnHv4BuCkAUoWzh/e7OvgK0PLxIzDkk/M5i+1dhViQhgiIIO0X StMTRS0PRA8BhHq7tpBdUeol5Mh7vwy1B9ZIwqeEus/O8Utjck6P5zXwCortKdkgfw63 f8GiDBK6z8HREsMGmVCgjjSZSnVZZtNcWjRa+89kNE73kqa1+659eJ4hqYBQh2oMOmJy saHQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=KjwS82fYqqkv4xPlnla6S9j26In+4jWKlglRsnCKUho=; b=Y+MoB9Rm7SizMki9XnJqMz6rA4riQJOyYOePine0CI4SbWTp7CmMHHzdGoBAWarubt r0f7G2LN783jrTXgnQp8dZkI7Vx5e3VwgwzrTAaaIUqoxFQO5waKw3jKKThCYD15oWKD 3gjBAfWmNC3S0IycUOe9SoEZuuwD3zWz6kVlfOKUrO2pmu6vLb/e9hX/GVdedczYAHgE swTj6CpIUly9LJDn2NDG19zKkDaK0ExrAxuakB/Udq/cttrpjKGkxwkRdp90rtVzIXeV mt7yOU/KMnsFNxlRUCGvmEL9t+jQGgAG036u8QlJCNufxRec6s3OJ8xmU9DbktR3sLSQ PoJA== X-Gm-Message-State: AOAM532+pOePXRh/XaQBd8HquVMu8RHxYbZDZ5ktqS13XSciFk0QWNHL A8cSSDRIK+Yx6HFoE7b/xMo= X-Google-Smtp-Source: ABdhPJzFbfdCzVoQJkISeG4Rz4RWsAmu98GhPnEYYfDeTQBLSEyPyyrlRWvyypuYoFYyWVC4Ekyfjw== X-Received: by 2002:a05:6512:131b:: with SMTP id x27mr4615717lfu.593.1611177233593; Wed, 20 Jan 2021 13:13:53 -0800 (PST) Received: from localhost.localdomain (109-252-192-57.dynamic.spd-mgts.ru. [109.252.192.57]) by smtp.gmail.com with ESMTPSA id 196sm298131lfj.219.2021.01.20.13.13.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Jan 2021 13:13:53 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Ulf Hansson , Peter Geis , Nicolas Chauvet , "Rafael J. Wysocki" , Kevin Hilman , Peter De Schrijver , Viresh Kumar , Stephen Boyd , Greg Kroah-Hartman , Matt Merhar Cc: linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH v5 3/3] PM: domains: Add "performance" column to debug summary Date: Thu, 21 Jan 2021 00:12:32 +0300 Message-Id: <20210120211232.17299-4-digetx@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210120211232.17299-1-digetx@gmail.com> References: <20210120211232.17299-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org Add "performance" column to debug summary which shows performance state of all power domains and theirs devices. Tested-by: Peter Geis Tested-by: Nicolas Chauvet Tested-by: Matt Merhar [tested on NVIDIA Tegra20/30/124 SoCs] Reviewed-by: Ulf Hansson Reviewed-by: Viresh Kumar Signed-off-by: Dmitry Osipenko --- drivers/base/power/domain.c | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 25b346bb2d97..40b72b1d8e8f 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -2955,7 +2955,15 @@ static void rtpm_status_str(struct seq_file *s, struct device *dev) else WARN_ON(1); - seq_puts(s, p); + seq_printf(s, "%-25s ", p); +} + +static void perf_status_str(struct seq_file *s, struct device *dev) +{ + struct generic_pm_domain_data *gpd_data; + + gpd_data = to_gpd_data(dev->power.subsys_data->domain_data); + seq_put_decimal_ull(s, "", gpd_data->performance_state); } static int genpd_summary_one(struct seq_file *s, @@ -2983,7 +2991,7 @@ static int genpd_summary_one(struct seq_file *s, else snprintf(state, sizeof(state), "%s", status_lookup[genpd->status]); - seq_printf(s, "%-30s %-15s ", genpd->name, state); + seq_printf(s, "%-30s %-50s %u", genpd->name, state, genpd->performance_state); /* * Modifications on the list require holding locks on both @@ -2991,6 +2999,8 @@ static int genpd_summary_one(struct seq_file *s, * Also genpd->name is immutable. */ list_for_each_entry(link, &genpd->parent_links, parent_node) { + if (list_is_first(&link->parent_node, &genpd->parent_links)) + seq_printf(s, "\n%48s", " "); seq_printf(s, "%s", link->child->name); if (!list_is_last(&link->parent_node, &genpd->parent_links)) seq_puts(s, ", "); @@ -3005,6 +3015,7 @@ static int genpd_summary_one(struct seq_file *s, seq_printf(s, "\n %-50s ", kobj_path); rtpm_status_str(s, pm_data->dev); + perf_status_str(s, pm_data->dev); kfree(kobj_path); } @@ -3020,9 +3031,9 @@ static int summary_show(struct seq_file *s, void *data) struct generic_pm_domain *genpd; int ret = 0; - seq_puts(s, "domain status children\n"); + seq_puts(s, "domain status children performance\n"); seq_puts(s, " /device runtime status\n"); - seq_puts(s, "----------------------------------------------------------------------\n"); + seq_puts(s, "----------------------------------------------------------------------------------------------\n"); ret = mutex_lock_interruptible(&gpd_list_lock); if (ret)