From patchwork Fri Mar 24 07:08:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhang, Rui" X-Patchwork-Id: 666826 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 781D3C6FD20 for ; Fri, 24 Mar 2023 07:08:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231301AbjCXHIZ (ORCPT ); Fri, 24 Mar 2023 03:08:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50620 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231189AbjCXHIU (ORCPT ); Fri, 24 Mar 2023 03:08:20 -0400 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5E2F02723; Fri, 24 Mar 2023 00:08:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1679641699; x=1711177699; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=u6iHiScBifXZ1ltDhXObrT9QpiwYLsnp8xcW9/S7U+I=; b=Co4IB9WLWmF/EB+Bp0QncespEoLf8/WEda4Jt5hc524q15UEYpheQNJJ MyENTgnCZyMdwKKQQfOmBnqQJNlOAPz+7KNv5uVOYKLyQSYDF/XOmu15l /nsu76JUJpDWKxc+cecGyI9aSiQCT+XeY3DrpHeX943MH2oIyBKAZrRoV wRWwYYXFh0oxQXvIJ1G7605Ig+/lR+MoBu0Uyx8mUsdGhjJwN+fEglY/V ffBNcd9H8sTaLI7aEjpZIClf3UUEJVFmRi2X7t0Qy3Kjk8ObXTEvpKUM9 Wxnf6Fxzp1gizLbfGjNofftVpNsKtvobUIsBzbLVNxaO2jNZtFZemJxZH w==; X-IronPort-AV: E=McAfee;i="6600,9927,10658"; a="402296723" X-IronPort-AV: E=Sophos;i="5.98,287,1673942400"; d="scan'208";a="402296723" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Mar 2023 00:08:19 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10658"; a="747046056" X-IronPort-AV: E=Sophos;i="5.98,287,1673942400"; d="scan'208";a="747046056" Received: from fli4-mobl1.ccr.corp.intel.com (HELO rzhang1-DESK.intel.com) ([10.255.28.30]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Mar 2023 00:08:17 -0700 From: Zhang Rui To: linux-pm@vger.kernel.org, rafael.j.wysocki@intel.com, daniel.lezcano@linaro.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH 3/5] thermal/core: Remove thermal_bind_params structure Date: Fri, 24 Mar 2023 15:08:05 +0800 Message-Id: <20230324070807.6342-3-rui.zhang@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230324070807.6342-1-rui.zhang@intel.com> References: <20230324070807.6342-1-rui.zhang@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Remove struct thermal_bind_params because no one is using it for thermal binding now. Signed-off-by: Zhang Rui --- .../driver-api/thermal/sysfs-api.rst | 40 ------ drivers/thermal/thermal_core.c | 134 ++---------------- include/linux/thermal.h | 38 ----- 3 files changed, 14 insertions(+), 198 deletions(-) diff --git a/Documentation/driver-api/thermal/sysfs-api.rst b/Documentation/driver-api/thermal/sysfs-api.rst index 2e0f79a9e2ee..6c1175c6afba 100644 --- a/Documentation/driver-api/thermal/sysfs-api.rst +++ b/Documentation/driver-api/thermal/sysfs-api.rst @@ -304,42 +304,6 @@ temperature) and throttle appropriate devices. 1.4 Thermal Zone Parameters --------------------------- - :: - - struct thermal_bind_params - - This structure defines the following parameters that are used to bind - a zone with a cooling device for a particular trip point. - - .cdev: - The cooling device pointer - .weight: - The 'influence' of a particular cooling device on this - zone. This is relative to the rest of the cooling - devices. For example, if all cooling devices have a - weight of 1, then they all contribute the same. You can - use percentages if you want, but it's not mandatory. A - weight of 0 means that this cooling device doesn't - contribute to the cooling of this zone unless all cooling - devices have a weight of 0. If all weights are 0, then - they all contribute the same. - .trip_mask: - This is a bit mask that gives the binding relation between - this thermal zone and cdev, for a particular trip point. - If nth bit is set, then the cdev and thermal zone are bound - for trip point n. - .binding_limits: - This is an array of cooling state limits. Must have - exactly 2 * thermal_zone.number_of_trip_points. It is an - array consisting of tuples of - state limits. Each trip will be associated with one state - limit tuple when binding. A NULL pointer means - on all trips. - These limits are used when binding a cdev to a trip point. - .match: - This call back returns success(0) if the 'tz and cdev' need to - be bound, as per platform data. - :: struct thermal_zone_params @@ -357,10 +321,6 @@ temperature) and throttle appropriate devices. will be created. when no_hwmon == true, nothing will be done. In case the thermal_zone_params is NULL, the hwmon interface will be created (for backward compatibility). - .num_tbps: - Number of thermal_bind_params entries for this zone - .tbp: - thermal_bind_params entries 2. sysfs attributes structure ============================= diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index fd54e6c10b60..5225d65fb0e0 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -794,65 +794,20 @@ void print_bind_err_msg(struct thermal_zone_device *tz, tz->type, cdev->type, ret); } -static void __bind(struct thermal_zone_device *tz, int mask, - struct thermal_cooling_device *cdev, - unsigned long *limits, - unsigned int weight) -{ - int i, ret; - - for (i = 0; i < tz->num_trips; i++) { - if (mask & (1 << i)) { - unsigned long upper, lower; - - upper = THERMAL_NO_LIMIT; - lower = THERMAL_NO_LIMIT; - if (limits) { - lower = limits[i * 2]; - upper = limits[i * 2 + 1]; - } - ret = thermal_zone_bind_cooling_device(tz, i, cdev, - upper, lower, - weight); - if (ret) - print_bind_err_msg(tz, cdev, ret); - } - } -} - static void bind_cdev(struct thermal_cooling_device *cdev) { - int i, ret; - const struct thermal_zone_params *tzp; + int ret; struct thermal_zone_device *pos = NULL; mutex_lock(&thermal_list_lock); list_for_each_entry(pos, &thermal_tz_list, node) { - if (!pos->tzp && !pos->ops->bind) + if (!pos->ops->bind) continue; - if (pos->ops->bind) { - ret = pos->ops->bind(pos, cdev); - if (ret) - print_bind_err_msg(pos, cdev, ret); - continue; - } - - tzp = pos->tzp; - if (!tzp || !tzp->tbp) - continue; - - for (i = 0; i < tzp->num_tbps; i++) { - if (tzp->tbp[i].cdev || !tzp->tbp[i].match) - continue; - if (tzp->tbp[i].match(pos, cdev)) - continue; - tzp->tbp[i].cdev = cdev; - __bind(pos, tzp->tbp[i].trip_mask, cdev, - tzp->tbp[i].binding_limits, - tzp->tbp[i].weight); - } + ret = pos->ops->bind(pos, cdev); + if (ret) + print_bind_err_msg(pos, cdev, ret); } mutex_unlock(&thermal_list_lock); @@ -1138,16 +1093,6 @@ void thermal_cooling_device_update(struct thermal_cooling_device *cdev) } EXPORT_SYMBOL_GPL(thermal_cooling_device_update); -static void __unbind(struct thermal_zone_device *tz, int mask, - struct thermal_cooling_device *cdev) -{ - int i; - - for (i = 0; i < tz->num_trips; i++) - if (mask & (1 << i)) - thermal_zone_unbind_cooling_device(tz, i, cdev); -} - /** * thermal_cooling_device_unregister - removes a thermal cooling device * @cdev: the thermal cooling device to remove. @@ -1157,8 +1102,6 @@ static void __unbind(struct thermal_zone_device *tz, int mask, */ void thermal_cooling_device_unregister(struct thermal_cooling_device *cdev) { - int i; - const struct thermal_zone_params *tzp; struct thermal_zone_device *tz; if (!cdev) @@ -1175,21 +1118,8 @@ void thermal_cooling_device_unregister(struct thermal_cooling_device *cdev) /* Unbind all thermal zones associated with 'this' cdev */ list_for_each_entry(tz, &thermal_tz_list, node) { - if (tz->ops->unbind) { + if (tz->ops->unbind) tz->ops->unbind(tz, cdev); - continue; - } - - if (!tz->tzp || !tz->tzp->tbp) - continue; - - tzp = tz->tzp; - for (i = 0; i < tzp->num_tbps; i++) { - if (tzp->tbp[i].cdev == cdev) { - __unbind(tz, tzp->tbp[i].trip_mask, cdev); - tzp->tbp[i].cdev = NULL; - } - } } mutex_lock(&cdev->lock); @@ -1204,41 +1134,20 @@ EXPORT_SYMBOL_GPL(thermal_cooling_device_unregister); static void bind_tz(struct thermal_zone_device *tz) { - int i, ret; + int ret; struct thermal_cooling_device *pos = NULL; - const struct thermal_zone_params *tzp = tz->tzp; - if (!tzp && !tz->ops->bind) + if (!tz->ops->bind) return; mutex_lock(&thermal_list_lock); - /* If there is ops->bind, try to use ops->bind */ - if (tz->ops->bind) { - list_for_each_entry(pos, &thermal_cdev_list, node) { - ret = tz->ops->bind(tz, pos); - if (ret) - print_bind_err_msg(tz, pos, ret); - } - goto exit; - } - - if (!tzp || !tzp->tbp) - goto exit; - list_for_each_entry(pos, &thermal_cdev_list, node) { - for (i = 0; i < tzp->num_tbps; i++) { - if (tzp->tbp[i].cdev || !tzp->tbp[i].match) - continue; - if (tzp->tbp[i].match(tz, pos)) - continue; - tzp->tbp[i].cdev = pos; - __bind(tz, tzp->tbp[i].trip_mask, pos, - tzp->tbp[i].binding_limits, - tzp->tbp[i].weight); - } + ret = tz->ops->bind(tz, pos); + if (ret) + print_bind_err_msg(tz, pos, ret); } -exit: + mutex_unlock(&thermal_list_lock); } @@ -1477,15 +1386,13 @@ EXPORT_SYMBOL_GPL(thermal_zone_device_register); */ void thermal_zone_device_unregister(struct thermal_zone_device *tz) { - int i, tz_id; - const struct thermal_zone_params *tzp; + int tz_id; struct thermal_cooling_device *cdev; struct thermal_zone_device *pos = NULL; if (!tz) return; - tzp = tz->tzp; tz_id = tz->id; mutex_lock(&thermal_list_lock); @@ -1516,22 +1423,9 @@ void thermal_zone_device_unregister(struct thermal_zone_device *tz) continue; unbind: - if (tz->ops->unbind) { + if (tz->ops->unbind) tz->ops->unbind(tz, cdev); - goto deactivate; - } - - if (!tzp || !tzp->tbp) - break; - - for (i = 0; i < tzp->num_tbps; i++) { - if (tzp->tbp[i].cdev == cdev) { - __unbind(tz, tzp->tbp[i].trip_mask, cdev); - tzp->tbp[i].cdev = NULL; - } - } -deactivate: /* * The thermal instances for current thermal zone has been * removed. Update the cooling device in case it is activated diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 13c6aaed18df..481417d3b9b7 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -207,41 +207,6 @@ struct thermal_governor { struct list_head governor_list; }; -/* Structure that holds binding parameters for a zone */ -struct thermal_bind_params { - struct thermal_cooling_device *cdev; - - /* - * This is a measure of 'how effectively these devices can - * cool 'this' thermal zone. It shall be determined by - * platform characterization. This value is relative to the - * rest of the weights so a cooling device whose weight is - * double that of another cooling device is twice as - * effective. See Documentation/driver-api/thermal/sysfs-api.rst for more - * information. - */ - int weight; - - /* - * This is a bit mask that gives the binding relation between this - * thermal zone and cdev, for a particular trip point. - * See Documentation/driver-api/thermal/sysfs-api.rst for more information. - */ - int trip_mask; - - /* - * This is an array of cooling state limits. Must have exactly - * 2 * thermal_zone.number_of_trip_points. It is an array consisting - * of tuples of state limits. Each trip - * will be associated with one state limit tuple when binding. - * A NULL pointer means - * on all trips. - */ - unsigned long *binding_limits; - int (*match) (struct thermal_zone_device *tz, - struct thermal_cooling_device *cdev); -}; - /* Structure to define Thermal Zone parameters */ struct thermal_zone_params { char governor_name[THERMAL_NAME_LENGTH]; @@ -253,9 +218,6 @@ struct thermal_zone_params { */ bool no_hwmon; - int num_tbps; /* Number of tbp entries */ - struct thermal_bind_params *tbp; - /* * Sustainable power (heat) that this thermal zone can dissipate in * mW