From patchwork Sun Nov 24 14:07:44 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leonid Maksymchuk X-Patchwork-Id: 11259169 X-Patchwork-Delegate: andy.shevchenko@gmail.com 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 73FDC1390 for ; Sun, 24 Nov 2019 14:07:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4BCD92073F for ; Sun, 24 Nov 2019 14:07:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="GEV+Os0S" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726803AbfKXOH6 (ORCPT ); Sun, 24 Nov 2019 09:07:58 -0500 Received: from mail-lj1-f196.google.com ([209.85.208.196]:33529 "EHLO mail-lj1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726798AbfKXOH6 (ORCPT ); Sun, 24 Nov 2019 09:07:58 -0500 Received: by mail-lj1-f196.google.com with SMTP id t5so12692291ljk.0; Sun, 24 Nov 2019 06:07:57 -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=Kfm4fhMUyyQjD49i5oCuMgOLOcR8Qd3E7xVozwk/t6s=; b=GEV+Os0Slrm6W94dxpftCi+sm/5Gp2HZhWXIB6wkLFX6/YnIxXcqx13cVs8g+PX7LY yab1dsvaUMb0+k/Z26tWvlX6iLbV5CR7IqDaCv30Ko9SVreneCNI1b9Ni85tIdxoWvWo Y1KGdIhPpfLpLTCFOph9hko15SVVdbpuQxCBg2ufK2VXURTKVsFcgT8eFaKOK9l0L2oz cjmbpNyZVm7gAV3ciO4GWG4eQZ2cKxSHvJOz3vCnQrVOT/qxeXtuoJvCAYRmIq3mKck9 gikKmFN+Ggv/Vn49GG0HBPYVgHbpQ/D7ptH5pstaQwB85241zW6jpqy6P8eh9RZOuKJv wiZA== 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=Kfm4fhMUyyQjD49i5oCuMgOLOcR8Qd3E7xVozwk/t6s=; b=aGSzwpKOUO+51zndqCyVBIqWu+ElFij9C38I/Th5opEzk8rJrpToUEYOXWA0nk7NRt 4l6NpLQ7/s8KcVa+dbLlicnRh9Y5pIQE6ENXBns0JaUYpcXhtWgLY1piOCxvVwYxMkar DqdP9+eQQVgX/vqiLP2Vr5ZeS8lD58Sp6J+ZQg+10c/KRhmWbw/PM0MAnENSllTT63Cq gNhpL83i/HHMlNaqkOnCuRS0b/NcP0AZFZRNmzSfLVKexIkhEG2zUE3TqXZYvor5zlr0 E7nrXNX7VQue276fhmFqmbW6sa5tEi1aaiRSHUsLC8LJEQ7I5KfDc54QyWRTN8xi4QUW SAVg== X-Gm-Message-State: APjAAAU8Ws/d3dgwgDoSeFR8mGbrmTgxZMQt8L7pWXNW6ftAQR8YVAyw JmxTQZ+xlyRzEeJL1BLzTV8wTU91XcQ= X-Google-Smtp-Source: APXvYqx9HIyNYz3CHvTQJb0h4dshMcdINztsplPWIG0wMYA0uxlfFZVe7IQ4fLpry+YBimCx3mSUFQ== X-Received: by 2002:a2e:b5c4:: with SMTP id g4mr18902837ljn.169.1574604476113; Sun, 24 Nov 2019 06:07:56 -0800 (PST) Received: from localhost.localdomain ([91.237.107.85]) by smtp.googlemail.com with ESMTPSA id t7sm2267449ljg.59.2019.11.24.06.07.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 24 Nov 2019 06:07:55 -0800 (PST) From: Leonid Maksymchuk To: linux-kernel@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org, acpi4asus-user@lists.sourceforge.net, chiu@endlessm.com, kristian@klausen.dk, andy@infradead.org, dvhart@infradead.org, corentin.chary@gmail.com, Leonid Maksymchuk Subject: [PATCH v5 1/2] platform/x86 asus_wmi: Support throttle thermal policy Date: Sun, 24 Nov 2019 16:07:44 +0200 Message-Id: <20191124140744.20830-1-leonmaxx@gmail.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191124140625.20736-1-leonmaxx@gmail.com> References: <20191124140625.20736-1-leonmaxx@gmail.com> MIME-Version: 1.0 Sender: platform-driver-x86-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@vger.kernel.org Throttle thermal policy ACPI device is used to control CPU cooling and throttling. This patch adds sysfs entry for setting current mode and Fn+F5 hotkey that switches to next. Policy modes: * 0x00 - default * 0x01 - overboost * 0x02 - silent Signed-off-by: Leonid Maksymchuk --- drivers/platform/x86/asus-wmi.c | 117 +++++++++++++++++++++++++++++ include/linux/platform_data/x86/asus-wmi.h | 1 + 2 files changed, 118 insertions(+) diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 821b08e..88faea6 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -61,6 +61,7 @@ #define NOTIFY_KBD_BRTDWN 0xc5 #define NOTIFY_KBD_BRTTOGGLE 0xc7 #define NOTIFY_KBD_FBM 0x99 +#define NOTIFY_KBD_TTP 0xae #define ASUS_WMI_FNLOCK_BIOS_DISABLED BIT(0) @@ -81,6 +82,10 @@ #define ASUS_FAN_BOOST_MODE_SILENT_MASK 0x02 #define ASUS_FAN_BOOST_MODES_MASK 0x03 +#define ASUS_THROTTLE_THERMAL_POLICY_DEFAULT 0 +#define ASUS_THROTTLE_THERMAL_POLICY_OVERBOOST 1 +#define ASUS_THROTTLE_THERMAL_POLICY_SILENT 2 + #define USB_INTEL_XUSB2PR 0xD0 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31 @@ -198,6 +203,9 @@ struct asus_wmi { u8 fan_boost_mode_mask; u8 fan_boost_mode; + bool throttle_thermal_policy_available; + u8 throttle_thermal_policy_mode; + // The RSOC controls the maximum charging percentage. bool battery_rsoc_available; @@ -1724,6 +1732,102 @@ static ssize_t fan_boost_mode_store(struct device *dev, // Fan boost mode: 0 - normal, 1 - overboost, 2 - silent static DEVICE_ATTR_RW(fan_boost_mode); +/* Throttle thermal policy ****************************************************/ + +static int throttle_thermal_policy_check_present(struct asus_wmi *asus) +{ + u32 result; + int err; + + asus->throttle_thermal_policy_available = false; + + err = asus_wmi_get_devstate(asus, + ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY, + &result); + if (err) { + if (err == -ENODEV) + return 0; + else + return err; + } + + if ((result & ASUS_WMI_DSTS_PRESENCE_BIT)) + asus->throttle_thermal_policy_available = true; + + return 0; +} + +static int throttle_thermal_policy_write(struct asus_wmi *asus) +{ + int err; + u8 value; + u32 retval; + + value = asus->throttle_thermal_policy_mode; + + pr_info("Set throttle thermal policy: %u\n", value); + err = asus_wmi_set_devstate(ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY, + value, &retval); + if (err) { + pr_warn("Failed to set throttle thermal policy: %d\n", err); + return err; + } + + if (retval != 1) { + pr_warn("Failed to set throttle thermal policy (retval): 0x%x\n", + retval); + return -EIO; + } + + return 0; +} + +static int throttle_thermal_policy_switch_next(struct asus_wmi *asus) +{ + u8 new_mode = asus->throttle_thermal_policy_mode + 1; + + if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_SILENT) + new_mode = ASUS_THROTTLE_THERMAL_POLICY_DEFAULT; + + asus->throttle_thermal_policy_mode = new_mode; + return throttle_thermal_policy_write(asus); +} + +static ssize_t throttle_thermal_policy_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct asus_wmi *asus = dev_get_drvdata(dev); + + return scnprintf(buf, PAGE_SIZE, "%d\n", + asus->throttle_thermal_policy_mode); +} + +static ssize_t throttle_thermal_policy_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int result; + u8 new_mode; + struct asus_wmi *asus = dev_get_drvdata(dev); + + result = kstrtou8(buf, 10, &new_mode); + if (result < 0) { + pr_warn("Trying to store invalid value\n"); + return result; + } + + if (new_mode > ASUS_THROTTLE_THERMAL_POLICY_SILENT) + return -EINVAL; + + asus->throttle_thermal_policy_mode = new_mode; + throttle_thermal_policy_write(asus); + + return count; +} + +// Throttle thermal policy: 0 - default, 1 - overboost, 2 - silent +static DEVICE_ATTR_RW(throttle_thermal_policy); + /* Backlight ******************************************************************/ static int read_backlight_power(struct asus_wmi *asus) @@ -2005,6 +2109,11 @@ static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus) return; } + if (asus->throttle_thermal_policy_available && code == NOTIFY_KBD_TTP) { + throttle_thermal_policy_switch_next(asus); + return; + } + if (is_display_toggle(code) && asus->driver->quirks->no_display_toggle) return; @@ -2155,6 +2264,7 @@ static ssize_t cpufv_store(struct device *dev, struct device_attribute *attr, &dev_attr_lid_resume.attr, &dev_attr_als_enable.attr, &dev_attr_fan_boost_mode.attr, + &dev_attr_throttle_thermal_policy.attr, NULL }; @@ -2178,6 +2288,8 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj, devid = ASUS_WMI_DEVID_ALS_ENABLE; else if (attr == &dev_attr_fan_boost_mode.attr) ok = asus->fan_boost_mode_available; + else if (attr == &dev_attr_throttle_thermal_policy.attr) + ok = asus->throttle_thermal_policy_available; if (devid != -1) ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0); @@ -2437,6 +2549,10 @@ static int asus_wmi_add(struct platform_device *pdev) if (err) goto fail_fan_boost_mode; + err = throttle_thermal_policy_check_present(asus); + if (err) + goto fail_throttle_thermal_policy; + err = asus_wmi_sysfs_init(asus->platform_device); if (err) goto fail_sysfs; @@ -2521,6 +2637,7 @@ static int asus_wmi_add(struct platform_device *pdev) fail_input: asus_wmi_sysfs_exit(asus->platform_device); fail_sysfs: +fail_throttle_thermal_policy: fail_fan_boost_mode: fail_platform: kfree(asus); diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h index 60249e2..d39fc65 100644 --- a/include/linux/platform_data/x86/asus-wmi.h +++ b/include/linux/platform_data/x86/asus-wmi.h @@ -58,6 +58,7 @@ #define ASUS_WMI_DEVID_LIGHT_SENSOR 0x00050022 /* ?? */ #define ASUS_WMI_DEVID_LIGHTBAR 0x00050025 #define ASUS_WMI_DEVID_FAN_BOOST_MODE 0x00110018 +#define ASUS_WMI_DEVID_THROTTLE_THERMAL_POLICY 0x00120075 /* Misc */ #define ASUS_WMI_DEVID_CAMERA 0x00060013