From patchwork Tue Jan 26 10:40:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lukasz Luba X-Patchwork-Id: 12046083 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A10E5C433E0 for ; Tue, 26 Jan 2021 10:42:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 45BEE23103 for ; Tue, 26 Jan 2021 10:42:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404282AbhAZKlj (ORCPT ); Tue, 26 Jan 2021 05:41:39 -0500 Received: from foss.arm.com ([217.140.110.172]:60928 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404267AbhAZKlS (ORCPT ); Tue, 26 Jan 2021 05:41:18 -0500 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 08040113E; Tue, 26 Jan 2021 02:40:33 -0800 (PST) Received: from e123648.arm.com (unknown [10.57.2.43]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 55E0A3F66B; Tue, 26 Jan 2021 02:40:30 -0800 (PST) From: Lukasz Luba To: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Cc: vireshk@kernel.org, rafael@kernel.org, daniel.lezcano@linaro.org, Dietmar.Eggemann@arm.com, lukasz.luba@arm.com, amitk@kernel.org, rui.zhang@intel.com, cw00.choi@samsung.com, myungjoo.ham@samsung.com, kyungmin.park@samsung.com Subject: [RFC][PATCH 3/3] thermal: power_allocator: get proper max power limited by user Date: Tue, 26 Jan 2021 10:40:01 +0000 Message-Id: <20210126104001.20361-4-lukasz.luba@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210126104001.20361-1-lukasz.luba@arm.com> References: <20210126104001.20361-1-lukasz.luba@arm.com> Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Use new API interface to get the maximum power of the cooling device. This is needed to properly allocate and split the total power budget. The allowed limit is taken from supported cooling device and then checked with limits set in DT. The final state value is used for asking for the related power value the cooling device. Signed-off-by: Lukasz Luba --- drivers/thermal/gov_power_allocator.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/thermal/gov_power_allocator.c b/drivers/thermal/gov_power_allocator.c index 92acae53df49..ec33fba5a358 100644 --- a/drivers/thermal/gov_power_allocator.c +++ b/drivers/thermal/gov_power_allocator.c @@ -308,6 +308,20 @@ power_actor_set_power(struct thermal_cooling_device *cdev, return 0; } +static int +power_actor_get_max_power(struct thermal_cooling_device *cdev, + struct thermal_instance *instance, u32 *max_power) +{ + unsigned long min_state = 0; + + if (cdev->ops->get_user_min_state) + cdev->ops->get_user_min_state(cdev, &min_state); + + min_state = max(instance->lower, min_state); + + return cdev->ops->state2power(cdev, min_state, max_power); +} + /** * divvy_up_power() - divvy the allocated power between the actors * @req_power: each actor's requested power @@ -455,8 +469,7 @@ static int allocate_power(struct thermal_zone_device *tz, weighted_req_power[i] = frac_to_int(weight * req_power[i]); - if (cdev->ops->state2power(cdev, instance->lower, - &max_power[i])) + if (power_actor_get_max_power(cdev, instance, &max_power[i])) continue; total_req_power += req_power[i];