From patchwork Thu Oct 15 11:24:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lukasz Luba X-Patchwork-Id: 11838933 X-Patchwork-Delegate: daniel.lezcano@linaro.org Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 37E1F1744 for ; Thu, 15 Oct 2020 11:25:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2177A212CC for ; Thu, 15 Oct 2020 11:25:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728386AbgJOLZi (ORCPT ); Thu, 15 Oct 2020 07:25:38 -0400 Received: from foss.arm.com ([217.140.110.172]:32830 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728329AbgJOLZH (ORCPT ); Thu, 15 Oct 2020 07:25:07 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id EA2B813D5; Thu, 15 Oct 2020 04:25:06 -0700 (PDT) Received: from e123648.arm.com (unknown [10.57.48.138]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id DAFFA3F66B; Thu, 15 Oct 2020 04:25:04 -0700 (PDT) From: Lukasz Luba To: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: daniel.lezcano@linaro.org, amitk@kernel.org, Dietmar.Eggemann@arm.com, lukasz.luba@arm.com, michael.kao@mediatek.com, rui.zhang@intel.com Subject: [PATCH v2 4/4] thermal: move power_actor_set_power into IPA Date: Thu, 15 Oct 2020 12:24:41 +0100 Message-Id: <20201015112441.4056-5-lukasz.luba@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201015112441.4056-1-lukasz.luba@arm.com> References: <20201015112441.4056-1-lukasz.luba@arm.com> Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Since the power actor section has one function power_actor_set_power() move it into Intelligent Power Allocation (IPA). There is no other user of that helper function. It would also allow to remove the check of cdev_is_power_actor() because the code which calls it in IPA already does the needed check. Make the function static since only IPA use it. Signed-off-by: Lukasz Luba --- drivers/thermal/gov_power_allocator.c | 32 +++++++++++++++++++++ drivers/thermal/thermal_core.c | 41 --------------------------- drivers/thermal/thermal_core.h | 2 -- 3 files changed, 32 insertions(+), 43 deletions(-) diff --git a/drivers/thermal/gov_power_allocator.c b/drivers/thermal/gov_power_allocator.c index eb8c9afadf19..b29e21c56a4f 100644 --- a/drivers/thermal/gov_power_allocator.c +++ b/drivers/thermal/gov_power_allocator.c @@ -254,6 +254,38 @@ static u32 pid_controller(struct thermal_zone_device *tz, return power_range; } +/** + * power_actor_set_power() - limit the maximum power a cooling device consumes + * @cdev: pointer to &thermal_cooling_device + * @instance: thermal instance to update + * @power: the power in milliwatts + * + * Set the cooling device to consume at most @power milliwatts. The limit is + * expected to be a cap at the maximum power consumption. + * + * Return: 0 on success, -EINVAL if the cooling device does not + * implement the power actor API or -E* for other failures. + */ +static int +power_actor_set_power(struct thermal_cooling_device *cdev, + struct thermal_instance *instance, u32 power) +{ + unsigned long state; + int ret; + + ret = cdev->ops->power2state(cdev, power, &state); + if (ret) + return ret; + + instance->target = clamp_val(state, instance->lower, instance->upper); + mutex_lock(&cdev->lock); + cdev->updated = false; + mutex_unlock(&cdev->lock); + thermal_cdev_update(cdev); + + return 0; +} + /** * divvy_up_power() - divvy the allocated power between the actors * @req_power: each actor's requested power diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index d5540bfeee5e..96349ba59725 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -593,47 +593,6 @@ static void thermal_zone_device_check(struct work_struct *work) thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED); } -/* - * Power actor section: interface to power actors to estimate power - * - * Set of functions used to interact to cooling devices that know - * how to estimate their devices power consumption. - */ - -/** - * power_actor_set_power() - limit the maximum power a cooling device consumes - * @cdev: pointer to &thermal_cooling_device - * @instance: thermal instance to update - * @power: the power in milliwatts - * - * Set the cooling device to consume at most @power milliwatts. The limit is - * expected to be a cap at the maximum power consumption. - * - * Return: 0 on success, -EINVAL if the cooling device does not - * implement the power actor API or -E* for other failures. - */ -int power_actor_set_power(struct thermal_cooling_device *cdev, - struct thermal_instance *instance, u32 power) -{ - unsigned long state; - int ret; - - if (!cdev_is_power_actor(cdev)) - return -EINVAL; - - ret = cdev->ops->power2state(cdev, power, &state); - if (ret) - return ret; - - instance->target = clamp_val(state, instance->lower, instance->upper); - mutex_lock(&cdev->lock); - cdev->updated = false; - mutex_unlock(&cdev->lock); - thermal_cdev_update(cdev); - - return 0; -} - void thermal_zone_device_rebind_exception(struct thermal_zone_device *tz, const char *cdev_type, size_t size) { diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h index 14f8a829a84a..fc887d6f23ff 100644 --- a/drivers/thermal/thermal_core.h +++ b/drivers/thermal/thermal_core.h @@ -65,8 +65,6 @@ static inline bool cdev_is_power_actor(struct thermal_cooling_device *cdev) cdev->ops->power2state; } -int power_actor_set_power(struct thermal_cooling_device *cdev, - struct thermal_instance *ti, u32 power); /** * struct thermal_trip - representation of a point in temperature domain * @np: pointer to struct device_node that this trip point was created from