From patchwork Fri Feb 3 17:44:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Lezcano X-Patchwork-Id: 650804 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 C6812C64EC3 for ; Fri, 3 Feb 2023 17:45:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232369AbjBCRpB (ORCPT ); Fri, 3 Feb 2023 12:45:01 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48780 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233720AbjBCRoy (ORCPT ); Fri, 3 Feb 2023 12:44:54 -0500 Received: from mail-wr1-x42f.google.com (mail-wr1-x42f.google.com [IPv6:2a00:1450:4864:20::42f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F1A3D74A53 for ; Fri, 3 Feb 2023 09:44:40 -0800 (PST) Received: by mail-wr1-x42f.google.com with SMTP id h16so5304191wrz.12 for ; Fri, 03 Feb 2023 09:44:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=Za8uPsw5SSvV8WX2HiDt+VQyx2NN7X9xXkrZzQ/66K8=; b=Y0BpwNoFg1Yst7n0lERp8nuJl2HJZTQZQ9zMTMXzLiAw44A1jdf7fp8FkJ5CjAMCge gxLKA0sTVyo5A7NBJgCZNWxdwmRNgvSoSO/XGwPpnwQzHDIdPsgWyYDq6UGGAEpMEvaP 1umiZzO7PrR/fCpQOybQd6zbiX1wvjsKzRZTV0DU2jqo9dg//sseJJ/v6Lq5kBv8Hi9u miH2GTVjXJ2g3+vExVQYZbIM0vDCW1Msfbyc9SS016wWm8VCkUpvQc1mQ2mX/4L4bawE BWA0GvPfaGlkRY2OjgzY3Z4SAcMfieifO/3k8HbgladkMPcly4zIOO/nljtU60pzTu9x iE6w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=Za8uPsw5SSvV8WX2HiDt+VQyx2NN7X9xXkrZzQ/66K8=; b=KR0Ft4S5pN6Em7ixl8PIrLCbR6vVfr/iiLZFpzI1hzpfOd7CIxkf9Nv2fw44NyxeXD RqDuq132BVEj4pT3wLdtXt6UOaED/xV+xkOVBJcbrYG2vbRWTcQtSIyqtArLU4WHmDW8 xinHEvSN5azvPmRybrclNvXBK8xCuaI6kZdoomYq+ypNvK+dB1ATSkrpkR//z4Nf/cEw ajy8eFrNxRNy0dTPpl1RwXVtkrqG5A7DPj36wCaSZcFbOwsaQyR0iqPEB0H514BzzFcB +fw1frmECLxNFd8Rk3b/SexjRD2cTxrmGQibHrb9dEIZJY7N1iP1qeUo9ZUan+5+MBZv qP1A== X-Gm-Message-State: AO0yUKXGIissmrSLqkf2kPMgy19ZsPA5tr/lwKWI9GtqqNX36UUdJduJ 0/WRYVxxz47DcX5Wy65D5JeK7w== X-Google-Smtp-Source: AK7set91x7D76X7pVzQY6gXi/O7U+JN2LMvElRO431f2OILec/qIMHZSGBj5NaqCYKfmuuj4psxJLA== X-Received: by 2002:adf:c754:0:b0:2bf:e533:3158 with SMTP id b20-20020adfc754000000b002bfe5333158mr10328604wrh.20.1675446279253; Fri, 03 Feb 2023 09:44:39 -0800 (PST) Received: from mai.. (146725694.box.freepro.com. [130.180.211.218]) by smtp.gmail.com with ESMTPSA id z1-20020a5d4c81000000b002bdd8f12effsm2443528wrs.30.2023.02.03.09.44.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 Feb 2023 09:44:38 -0800 (PST) From: Daniel Lezcano To: rjw@rjwysocki.net Cc: daniel.lezcano@linaro.org, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org, "Rafael J. Wysocki" , Zhang Rui , Len Brown , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v2 06/11] thermal/acpi: Encapsulate in functions the trip initialization Date: Fri, 3 Feb 2023 18:44:24 +0100 Message-Id: <20230203174429.3375691-7-daniel.lezcano@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230203174429.3375691-1-daniel.lezcano@linaro.org> References: <20230203174429.3375691-1-daniel.lezcano@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org The thermal trip update function is a bit difficult to read, it is very long and has everything put in there to initialize the trip points. In order to improve its readability, let's encapuslate the different parts into dedicated functions. So we can act individually per trip type changes and will make easier to review the next changes. Signed-off-by: Daniel Lezcano --- drivers/acpi/thermal.c | 257 ++++++++++++++++++++++++----------------- 1 file changed, 154 insertions(+), 103 deletions(-) diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index c4fd583fbf5c..a3a8130c955f 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -246,113 +246,120 @@ do { \ "Please report to linux-acpi@vger.kernel.org\n", str); \ } while (0) -static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) +static int acpi_thermal_trips_update_critical(struct acpi_thermal *tz, int flag) { - acpi_status status; + acpi_status status = AE_OK; unsigned long long tmp; - struct acpi_handle_list devices; - int valid = 0; - int i; - /* Critical Shutdown */ - if (flag & ACPI_TRIPS_CRITICAL) { - status = acpi_evaluate_integer(tz->device->handle, "_CRT", NULL, &tmp); - tz->trips[ACPI_THERMAL_TRIP_CRITICAL].temperature = tmp; - - /* - * Treat freezing temperatures as invalid as well; some - * BIOSes return really low values and cause reboots at startup. - * Below zero (Celsius) values clearly aren't right for sure.. - * ... so lets discard those as invalid. - */ - if (ACPI_FAILURE(status)) { - tz->trips[ACPI_THERMAL_TRIP_CRITICAL].flags.valid = 0; - acpi_handle_debug(tz->device->handle, - "No critical threshold\n"); - } else if (tmp <= 2732) { - pr_info(FW_BUG "Invalid critical threshold (%llu)\n", tmp); + status = acpi_evaluate_integer(tz->device->handle, "_CRT", NULL, &tmp); + tz->trips[ACPI_THERMAL_TRIP_CRITICAL].temperature = tmp; + /* + * Treat freezing temperatures as invalid as well; some + * BIOSes return really low values and cause reboots at startup. + * Below zero (Celsius) values clearly aren't right for sure.. + * ... so lets discard those as invalid. + */ + if (ACPI_FAILURE(status)) { + tz->trips[ACPI_THERMAL_TRIP_CRITICAL].flags.valid = 0; + acpi_handle_debug(tz->device->handle, + "No critical threshold\n"); + } else if (tmp <= 2732) { + pr_info(FW_BUG "Invalid critical threshold (%llu)\n", tmp); + tz->trips[ACPI_THERMAL_TRIP_CRITICAL].flags.valid = 0; + } else { + tz->trips[ACPI_THERMAL_TRIP_CRITICAL].flags.valid = 1; + acpi_handle_debug(tz->device->handle, + "Found critical threshold [%lu]\n", + tz->trips[ACPI_THERMAL_TRIP_CRITICAL].temperature); + } + if (tz->trips[ACPI_THERMAL_TRIP_CRITICAL].flags.valid == 1) { + if (crt == -1) { tz->trips[ACPI_THERMAL_TRIP_CRITICAL].flags.valid = 0; - } else { - tz->trips[ACPI_THERMAL_TRIP_CRITICAL].flags.valid = 1; - acpi_handle_debug(tz->device->handle, - "Found critical threshold [%lu]\n", - tz->trips[ACPI_THERMAL_TRIP_CRITICAL].temperature); - } - - if (tz->trips[ACPI_THERMAL_TRIP_CRITICAL].flags.valid) { - if (crt == -1) { - tz->trips[ACPI_THERMAL_TRIP_CRITICAL].flags.valid = 0; - } else if (crt > 0) { - unsigned long crt_k = celsius_to_deci_kelvin(crt); + } else if (crt > 0) { + unsigned long crt_k = celsius_to_deci_kelvin(crt); - /* - * Allow override critical threshold - */ - if (crt_k > tz->trips[ACPI_THERMAL_TRIP_CRITICAL].temperature) - pr_info("Critical threshold %d C\n", crt); + /* + * Allow override critical threshold + */ + if (crt_k > tz->trips[ACPI_THERMAL_TRIP_CRITICAL].temperature) + pr_info("Critical threshold %d C\n", crt); - tz->trips[ACPI_THERMAL_TRIP_CRITICAL].temperature = crt_k; - } + tz->trips[ACPI_THERMAL_TRIP_CRITICAL].temperature = crt_k; } } - /* Critical Sleep (optional) */ - if (flag & ACPI_TRIPS_HOT) { - status = acpi_evaluate_integer(tz->device->handle, "_HOT", NULL, &tmp); - if (ACPI_FAILURE(status)) { - tz->trips[ACPI_THERMAL_TRIP_HOT].flags.valid = 0; - acpi_handle_debug(tz->device->handle, - "No hot threshold\n"); - } else { - tz->trips[ACPI_THERMAL_TRIP_HOT].temperature = tmp; - tz->trips[ACPI_THERMAL_TRIP_HOT].flags.valid = 1; - acpi_handle_debug(tz->device->handle, - "Found hot threshold [%lu]\n", - tz->trips[ACPI_THERMAL_TRIP_HOT].temperature); - } + return 0; +} + +static int acpi_thermal_trips_update_hot(struct acpi_thermal *tz, int flag) +{ + acpi_status status = AE_OK; + unsigned long long tmp; + + status = acpi_evaluate_integer(tz->device->handle, + "_HOT", NULL, &tmp); + if (ACPI_FAILURE(status)) { + tz->trips[ACPI_THERMAL_TRIP_HOT].flags.valid = 0; + acpi_handle_debug(tz->device->handle, + "No hot threshold\n"); + } else { + tz->trips[ACPI_THERMAL_TRIP_HOT].temperature = tmp; + tz->trips[ACPI_THERMAL_TRIP_HOT].flags.valid = 1; + acpi_handle_debug(tz->device->handle, + "Found hot threshold [%lu]\n", + tz->trips[ACPI_THERMAL_TRIP_HOT].temperature); } - /* Passive (optional) */ - if (((flag & ACPI_TRIPS_PASSIVE) && tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid) || - flag == ACPI_TRIPS_INIT) { - valid = tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid; - if (psv == -1) { - status = AE_SUPPORT; - } else if (psv > 0) { - tmp = celsius_to_deci_kelvin(psv); - status = AE_OK; - } else { - status = acpi_evaluate_integer(tz->device->handle, - "_PSV", NULL, &tmp); - } + return 0; +} - if (ACPI_FAILURE(status)) { - tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid = 0; - } else { - tz->trips[ACPI_THERMAL_TRIP_PASSIVE].temperature = tmp; - tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid = 1; - if (flag == ACPI_TRIPS_INIT) { - status = acpi_evaluate_integer(tz->device->handle, - "_TC1", NULL, &tmp); - if (ACPI_FAILURE(status)) - tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid = 0; - else - tz->trips[ACPI_THERMAL_TRIP_PASSIVE].tc1 = tmp; - status = acpi_evaluate_integer(tz->device->handle, - "_TC2", NULL, &tmp); - if (ACPI_FAILURE(status)) - tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid = 0; - else - tz->trips[ACPI_THERMAL_TRIP_PASSIVE].tc2 = tmp; - status = acpi_evaluate_integer(tz->device->handle, - "_TSP", NULL, &tmp); - if (ACPI_FAILURE(status)) - tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid = 0; - else - tz->trips[ACPI_THERMAL_TRIP_PASSIVE].tsp = tmp; - } +static int acpi_thermal_trips_update_passive(struct acpi_thermal *tz, int flag) +{ + acpi_status status; + unsigned long long tmp; + struct acpi_handle_list devices; + int valid = 0; + + valid = tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid; + if (psv == -1) { + status = AE_SUPPORT; + } else if (psv > 0) { + tmp = celsius_to_deci_kelvin(psv); + status = AE_OK; + } else { + status = acpi_evaluate_integer(tz->device->handle, "_PSV", NULL, &tmp); + } + + if (ACPI_FAILURE(status)) + tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid = 0; + else { + tz->trips[ACPI_THERMAL_TRIP_PASSIVE].temperature = tmp; + tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid = 1; + if (flag == ACPI_TRIPS_INIT) { + status = acpi_evaluate_integer( + tz->device->handle, "_TC1", + NULL, &tmp); + if (ACPI_FAILURE(status)) + tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid = 0; + else + tz->trips[ACPI_THERMAL_TRIP_PASSIVE].tc1 = tmp; + status = acpi_evaluate_integer( + tz->device->handle, "_TC2", + NULL, &tmp); + if (ACPI_FAILURE(status)) + tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid = 0; + else + tz->trips[ACPI_THERMAL_TRIP_PASSIVE].tc2 = tmp; + status = acpi_evaluate_integer( + tz->device->handle, "_TSP", + NULL, &tmp); + if (ACPI_FAILURE(status)) + tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid = 0; + else + tz->trips[ACPI_THERMAL_TRIP_PASSIVE].tsp = tmp; } } + if ((flag & ACPI_TRIPS_DEVICES) && tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid) { memset(&devices, 0, sizeof(struct acpi_handle_list)); status = acpi_evaluate_reference(tz->device->handle, "_PSL", @@ -372,12 +379,23 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) ACPI_THERMAL_TRIPS_EXCEPTION(flag, tz, "device"); } } + if ((flag & ACPI_TRIPS_PASSIVE) || (flag & ACPI_TRIPS_DEVICES)) { if (valid != tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid) ACPI_THERMAL_TRIPS_EXCEPTION(flag, tz, "state"); } - /* Active (optional) */ + return 0; +} + +static int acpi_thermal_trips_update_active(struct acpi_thermal *tz, int flag) +{ + acpi_status status = AE_OK; + unsigned long long tmp; + struct acpi_handle_list devices; + int valid = 0; + int i; + for (i = ACPI_THERMAL_TRIP_ACTIVE; i < ACPI_THERMAL_MAX_ACTIVE; i++) { char name[5] = { '_', 'A', 'C', ('0' + i), '\0' }; valid = tz->trips[i].flags.valid; @@ -445,17 +463,50 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) break; } - if (flag & ACPI_TRIPS_DEVICES) { - memset(&devices, 0, sizeof(devices)); - status = acpi_evaluate_reference(tz->device->handle, "_TZD", - NULL, &devices); - if (ACPI_SUCCESS(status) && - memcmp(&tz->devices, &devices, sizeof(devices))) { - tz->devices = devices; - ACPI_THERMAL_TRIPS_EXCEPTION(flag, tz, "device"); - } + return 0; +} + +static int acpi_thermal_trips_update_devices(struct acpi_thermal *tz, int flag) +{ + acpi_status status = AE_OK; + struct acpi_handle_list devices; + + memset(&devices, 0, sizeof(devices)); + status = acpi_evaluate_reference(tz->device->handle, "_TZD", NULL, &devices); + if (ACPI_SUCCESS(status) + && memcmp(&tz->devices, &devices, sizeof(devices))) { + tz->devices = devices; + ACPI_THERMAL_TRIPS_EXCEPTION(flag, tz, "device"); + } + + return 0; +} + +static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) +{ + /* Critical Shutdown */ + if (flag & ACPI_TRIPS_CRITICAL) { + acpi_thermal_trips_update_critical(tz, flag); } + /* Critical Sleep (optional) */ + if (flag & ACPI_TRIPS_HOT) { + acpi_thermal_trips_update_hot(tz, flag); + } + + /* Passive (optional) */ + if (((flag & ACPI_TRIPS_PASSIVE) && tz->trips[ACPI_THERMAL_TRIP_PASSIVE].flags.valid) || + (flag == ACPI_TRIPS_INIT)) { + acpi_thermal_trips_update_passive(tz, flag); + } + + /* Active (optional) */ + acpi_thermal_trips_update_active(tz, flag); + + if (flag & ACPI_TRIPS_DEVICES) { + acpi_thermal_trips_update_devices(tz, flag); + } + return 0; }