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[181.12.202.95]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-72057a3fddbsm8176003b3a.209.2024.10.29.17.11.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Oct 2024 17:11:32 -0700 (PDT) From: Kurt Borja To: kuurtb@gmail.com Cc: W_Armin@gmx.de, hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org Subject: [PATCH v11 3/5] alienware-wmi: added platform profile support Date: Tue, 29 Oct 2024 21:11:23 -0300 Message-ID: <20241030001124.7589-1-kuurtb@gmail.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241030000904.7205-2-kuurtb@gmail.com> References: <20241030000904.7205-2-kuurtb@gmail.com> Precedence: bulk X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Implements platform profile support for Dell laptops with new WMAX thermal interface, present on some Alienware X-Series, Alienware M-Series and Dell's G-Series laptops. This interface is suspected to be used by Alienware Command Center (AWCC), which is not available for linux systems, to manage thermal profiles. This implementation makes use of three WMI methods, namely THERMAL_CONTROL, THERMAL_INFORMATION and GAME_SHIFT_STATUS, which take u32 as input and output arguments. Each method has a set of supported operations specified in their respective enums. Not all models with WMAX WMI interface support these methods. Because of this, models have to manually declare support through new quirks `thermal` for THERMAL_CONTROL and THERMAL_INFORMATION and `gmode` for GAME_SHIFT_STATUS. Wrappers written for these methods support multiple operations. THERMAL_CONTROL switches thermal modes through operation ACTIVATE_PROFILE. Available thermal codes are auto-detected at runtime and matched against a list of known thermal codes: Thermal Table "User Selectable Thermal Tables" (USTT): BALANCED 0xA0 BALANCED_PERFORMANCE 0xA1 COOL 0xA2 QUIET 0xA3 PERFORMANCE 0xA4 LOW_POWER 0xA5 Thermal Table Basic: QUIET 0x96 BALANCED 0x97 BALANCED_PERFORMANCE 0x98 PERFORMANCE 0x99 Devices are known to implement only one of these tables without mixing their thermal codes. The fact that the least significant digit of every thermal code is consecutive of one another is exploited to efficiently match codes through arrays. Autodetection of available codes is done through operation LIST_IDS of method THERMAL_INFORMATION. This operation lists fan IDs, CPU sensor ID, GPU sensor ID and available thermal profile codes, *in that order*. As number of fans and thermal codes is very model dependent, almost every ID is scanned and matched based on conditions found on is_wmax_thermal_code(). The known upper bound for the number of IDs is 13, corresponding to a device that have 4 fans, 2 sensors and 7 thermal codes. Additionally G-Series laptops have a key called G-key, which (with AWCC proprietary driver) switches the thermal mode to an special mode named GMODE with code 0xAB and changes Game Shift Status to 1. Game Shift is a mode the manufacturer claims, increases gaming performance. GAME_SHIFT_STATUS method is used to mimic this behavior when selecting PLATFORM_PROFILE_PERFORMANCE option. All of these profiles are known to only change fan speed profiles, although there are untested claims that some of them also change power profiles. Activating a thermal mode with method THERMAL_CONTROL may cause short hangs. This is a known problem present on every platform. Signed-off-by: Kurt Borja Reviewed-by: Ilpo Järvinen Reviewed-by: Armin Wolf --- v11: - Unchanged v10: - Corrected THERMAL_MODE_BASIC_BALANCED -> THERMAL_MODE_BASIC_QUIET in is_wmax_thermal_code() logic - `thermal` and `gmode` quirks now have to be manually selected, because not all Dell devices posses the new WMI thermal methods. - Because of the above reason, errors in create_thermal_profile are now propagated v9: - Bool comparisons are now coherent with their type v8: - Fixed alignment in wmax_mode_to_platform_profile[] - Quirk thermal and gmode changed from u8 -> bool - Autodetected quirk entries are not initialized - is_wmax_thermal_code refactored to increase readibility - is_wmax_thermal_code now covers all possibilities - Better commit message v7: - Method operations are now clearly listed as separate enums - wmax_thermal_modes are now listed without codes in order to support autodetection, as well as getting and setting thermal profiles cleanly through arrays - Added wmax_mode_to_platform_profile[] - Added struct wmax_u32_args to replace bit mask approach of constructing arguments for wmax methods - create_thermal_profile now autodetects available thermal codes through operation 0x03 of THERMAL_INFORMATION method. These are codes are stored in supported_thermal_profiles[] - thermal_profile_get now uses wmax_mode_to_platform_profile[] instead of switch-case approach - thermal_profile_set now uses supported_thermal_profiles[] instead of switch-case approach - When gmode is autodetected, thermal_profile_set also sets Game Shift status accordingly v6: - Fixed alignment on some function definitions - Fixed braces on if statment - Removed quirk thermal_ustt - Now quirk thermal can take values defined in enum WMAX_THERMAL_TABLE. - Proper removal of thermal_profile --- drivers/platform/x86/dell/Kconfig | 1 + drivers/platform/x86/dell/alienware-wmi.c | 306 ++++++++++++++++++++++ 2 files changed, 307 insertions(+) diff --git a/drivers/platform/x86/dell/Kconfig b/drivers/platform/x86/dell/Kconfig index 68a49788a..b06d634cd 100644 --- a/drivers/platform/x86/dell/Kconfig +++ b/drivers/platform/x86/dell/Kconfig @@ -21,6 +21,7 @@ config ALIENWARE_WMI depends on LEDS_CLASS depends on NEW_LEDS depends on ACPI_WMI + select ACPI_PLATFORM_PROFILE help This is a driver for controlling Alienware BIOS driven features. It exposes an interface for controlling the AlienFX diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c index b27f3b64c..1d62c2ce7 100644 --- a/drivers/platform/x86/dell/alienware-wmi.c +++ b/drivers/platform/x86/dell/alienware-wmi.c @@ -8,8 +8,11 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include +#include +#include #include #include +#include #include #include @@ -25,6 +28,13 @@ #define WMAX_METHOD_AMPLIFIER_CABLE 0x6 #define WMAX_METHOD_DEEP_SLEEP_CONTROL 0x0B #define WMAX_METHOD_DEEP_SLEEP_STATUS 0x0C +#define WMAX_METHOD_THERMAL_INFORMATION 0x14 +#define WMAX_METHOD_THERMAL_CONTROL 0x15 +#define WMAX_METHOD_GAME_SHIFT_STATUS 0x25 + +#define WMAX_THERMAL_MODE_GMODE 0xAB + +#define WMAX_FAILURE_CODE 0xFFFFFFFF MODULE_AUTHOR("Mario Limonciello "); MODULE_DESCRIPTION("Alienware special feature control"); @@ -49,11 +59,59 @@ enum WMAX_CONTROL_STATES { WMAX_SUSPEND = 3, }; +enum WMAX_THERMAL_INFORMATION_OPERATIONS { + WMAX_OPERATION_LIST_IDS = 0x03, + WMAX_OPERATION_CURRENT_PROFILE = 0x0B, +}; + +enum WMAX_THERMAL_CONTROL_OPERATIONS { + WMAX_OPERATION_ACTIVATE_PROFILE = 0x01, +}; + +enum WMAX_GAME_SHIFT_STATUS_OPERATIONS { + WMAX_OPERATION_TOGGLE_GAME_SHIFT = 0x01, + WMAX_OPERATION_GET_GAME_SHIFT_STATUS = 0x02, +}; + +enum WMAX_THERMAL_TABLES { + WMAX_THERMAL_TABLE_BASIC = 0x90, + WMAX_THERMAL_TABLE_USTT = 0xA0, +}; + +enum wmax_thermal_mode { + THERMAL_MODE_USTT_BALANCED, + THERMAL_MODE_USTT_BALANCED_PERFORMANCE, + THERMAL_MODE_USTT_COOL, + THERMAL_MODE_USTT_QUIET, + THERMAL_MODE_USTT_PERFORMANCE, + THERMAL_MODE_USTT_LOW_POWER, + THERMAL_MODE_BASIC_QUIET, + THERMAL_MODE_BASIC_BALANCED, + THERMAL_MODE_BASIC_BALANCED_PERFORMANCE, + THERMAL_MODE_BASIC_PERFORMANCE, + THERMAL_MODE_LAST, +}; + +static const enum platform_profile_option wmax_mode_to_platform_profile[THERMAL_MODE_LAST] = { + [THERMAL_MODE_USTT_BALANCED] = PLATFORM_PROFILE_BALANCED, + [THERMAL_MODE_USTT_BALANCED_PERFORMANCE] = PLATFORM_PROFILE_BALANCED_PERFORMANCE, + [THERMAL_MODE_USTT_COOL] = PLATFORM_PROFILE_COOL, + [THERMAL_MODE_USTT_QUIET] = PLATFORM_PROFILE_QUIET, + [THERMAL_MODE_USTT_PERFORMANCE] = PLATFORM_PROFILE_PERFORMANCE, + [THERMAL_MODE_USTT_LOW_POWER] = PLATFORM_PROFILE_LOW_POWER, + [THERMAL_MODE_BASIC_QUIET] = PLATFORM_PROFILE_QUIET, + [THERMAL_MODE_BASIC_BALANCED] = PLATFORM_PROFILE_BALANCED, + [THERMAL_MODE_BASIC_BALANCED_PERFORMANCE] = PLATFORM_PROFILE_BALANCED_PERFORMANCE, + [THERMAL_MODE_BASIC_PERFORMANCE] = PLATFORM_PROFILE_PERFORMANCE, +}; + struct quirk_entry { u8 num_zones; u8 hdmi_mux; u8 amplifier; u8 deepslp; + bool thermal; + bool gmode; }; static struct quirk_entry *quirks; @@ -64,6 +122,8 @@ static struct quirk_entry quirk_inspiron5675 = { .hdmi_mux = 0, .amplifier = 0, .deepslp = 0, + .thermal = false, + .gmode = false, }; static struct quirk_entry quirk_unknown = { @@ -71,6 +131,8 @@ static struct quirk_entry quirk_unknown = { .hdmi_mux = 0, .amplifier = 0, .deepslp = 0, + .thermal = false, + .gmode = false, }; static struct quirk_entry quirk_x51_r1_r2 = { @@ -78,6 +140,8 @@ static struct quirk_entry quirk_x51_r1_r2 = { .hdmi_mux = 0, .amplifier = 0, .deepslp = 0, + .thermal = false, + .gmode = false, }; static struct quirk_entry quirk_x51_r3 = { @@ -85,6 +149,8 @@ static struct quirk_entry quirk_x51_r3 = { .hdmi_mux = 0, .amplifier = 1, .deepslp = 0, + .thermal = false, + .gmode = false, }; static struct quirk_entry quirk_asm100 = { @@ -92,6 +158,8 @@ static struct quirk_entry quirk_asm100 = { .hdmi_mux = 1, .amplifier = 0, .deepslp = 0, + .thermal = false, + .gmode = false, }; static struct quirk_entry quirk_asm200 = { @@ -99,6 +167,8 @@ static struct quirk_entry quirk_asm200 = { .hdmi_mux = 1, .amplifier = 0, .deepslp = 1, + .thermal = false, + .gmode = false, }; static struct quirk_entry quirk_asm201 = { @@ -106,6 +176,17 @@ static struct quirk_entry quirk_asm201 = { .hdmi_mux = 1, .amplifier = 1, .deepslp = 1, + .thermal = false, + .gmode = false, +}; + +static struct quirk_entry quirk_x_series = { + .num_zones = 2, + .hdmi_mux = 0, + .amplifier = 0, + .deepslp = 0, + .thermal = true, + .gmode = false, }; static int __init dmi_matched(const struct dmi_system_id *dmi) @@ -178,6 +259,15 @@ static const struct dmi_system_id alienware_quirks[] __initconst = { }, .driver_data = &quirk_inspiron5675, }, + { + .callback = dmi_matched, + .ident = "Alienware x15 R1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware x15 R1"), + }, + .driver_data = &quirk_x_series, + }, {} }; @@ -214,10 +304,19 @@ struct wmax_led_args { u8 state; } __packed; +struct wmax_u32_args { + u8 operation; + u8 arg1; + u8 arg2; + u8 arg3; +}; + static struct platform_device *platform_device; static struct device_attribute *zone_dev_attrs; static struct attribute **zone_attrs; static struct platform_zone *zone_data; +static struct platform_profile_handler pp_handler; +static enum wmax_thermal_mode supported_thermal_profiles[PLATFORM_PROFILE_LAST]; static struct platform_driver platform_driver = { .driver = { @@ -761,6 +860,204 @@ static int create_deepsleep(struct platform_device *dev) return ret; } +/* + * Thermal Profile control + * - Provides thermal profile control through the Platform Profile API + */ +#define WMAX_THERMAL_TABLE_MASK GENMASK(7, 4) +#define WMAX_THERMAL_MODE_MASK GENMASK(3, 0) +#define WMAX_SENSOR_ID_MASK BIT(8) + +static bool is_wmax_thermal_code(u32 code) +{ + if (code & WMAX_SENSOR_ID_MASK) + return false; + + if ((code & WMAX_THERMAL_MODE_MASK) >= THERMAL_MODE_LAST) + return false; + + if ((code & WMAX_THERMAL_TABLE_MASK) == WMAX_THERMAL_TABLE_BASIC && + (code & WMAX_THERMAL_MODE_MASK) >= THERMAL_MODE_BASIC_QUIET) + return true; + + if ((code & WMAX_THERMAL_TABLE_MASK) == WMAX_THERMAL_TABLE_USTT && + (code & WMAX_THERMAL_MODE_MASK) <= THERMAL_MODE_USTT_LOW_POWER) + return true; + + return false; +} + +static int wmax_thermal_information(u8 operation, u8 arg, u32 *out_data) +{ + acpi_status status; + struct wmax_u32_args in_args = { + .operation = operation, + .arg1 = arg, + .arg2 = 0, + .arg3 = 0, + }; + + status = alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_THERMAL_INFORMATION, + out_data); + + if (ACPI_FAILURE(status)) + return -EIO; + + if (*out_data == WMAX_FAILURE_CODE) + return -EBADRQC; + + return 0; +} + +static int wmax_thermal_control(u8 profile) +{ + acpi_status status; + struct wmax_u32_args in_args = { + .operation = WMAX_OPERATION_ACTIVATE_PROFILE, + .arg1 = profile, + .arg2 = 0, + .arg3 = 0, + }; + u32 out_data; + + status = alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_THERMAL_CONTROL, + &out_data); + + if (ACPI_FAILURE(status)) + return -EIO; + + if (out_data == WMAX_FAILURE_CODE) + return -EBADRQC; + + return 0; +} + +static int wmax_game_shift_status(u8 operation, u32 *out_data) +{ + acpi_status status; + struct wmax_u32_args in_args = { + .operation = operation, + .arg1 = 0, + .arg2 = 0, + .arg3 = 0, + }; + + status = alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_GAME_SHIFT_STATUS, + out_data); + + if (ACPI_FAILURE(status)) + return -EIO; + + if (*out_data == WMAX_FAILURE_CODE) + return -EOPNOTSUPP; + + return 0; +} + +static int thermal_profile_get(struct platform_profile_handler *pprof, + enum platform_profile_option *profile) +{ + u32 out_data; + int ret; + + ret = wmax_thermal_information(WMAX_OPERATION_CURRENT_PROFILE, + 0, &out_data); + + if (ret < 0) + return ret; + + if (out_data == WMAX_THERMAL_MODE_GMODE) { + *profile = PLATFORM_PROFILE_PERFORMANCE; + return 0; + } + + if (!is_wmax_thermal_code(out_data)) + return -ENODATA; + + out_data &= WMAX_THERMAL_MODE_MASK; + *profile = wmax_mode_to_platform_profile[out_data]; + + return 0; +} + +static int thermal_profile_set(struct platform_profile_handler *pprof, + enum platform_profile_option profile) +{ + if (quirks->gmode) { + u32 gmode_status; + int ret; + + ret = wmax_game_shift_status(WMAX_OPERATION_GET_GAME_SHIFT_STATUS, + &gmode_status); + + if (ret < 0) + return ret; + + if ((profile == PLATFORM_PROFILE_PERFORMANCE && !gmode_status) || + (profile != PLATFORM_PROFILE_PERFORMANCE && gmode_status)) { + ret = wmax_game_shift_status(WMAX_OPERATION_TOGGLE_GAME_SHIFT, + &gmode_status); + + if (ret < 0) + return ret; + } + } + + return wmax_thermal_control(supported_thermal_profiles[profile]); +} + +static int create_thermal_profile(void) +{ + u32 out_data; + enum wmax_thermal_mode mode; + enum platform_profile_option profile; + int ret; + + for (u8 i = 0x2; i <= 0xD; i++) { + ret = wmax_thermal_information(WMAX_OPERATION_LIST_IDS, + i, &out_data); + + if (ret == -EIO) + return ret; + + if (ret == -EBADRQC) + break; + + if (!is_wmax_thermal_code(out_data)) + continue; + + mode = out_data & WMAX_THERMAL_MODE_MASK; + profile = wmax_mode_to_platform_profile[mode]; + supported_thermal_profiles[profile] = out_data; + + set_bit(profile, pp_handler.choices); + } + + if (bitmap_empty(pp_handler.choices, PLATFORM_PROFILE_LAST)) + return -ENODEV; + + if (quirks->gmode) { + supported_thermal_profiles[PLATFORM_PROFILE_PERFORMANCE] = + WMAX_THERMAL_MODE_GMODE; + + set_bit(PLATFORM_PROFILE_PERFORMANCE, pp_handler.choices); + } + + pp_handler.profile_get = thermal_profile_get; + pp_handler.profile_set = thermal_profile_set; + + return platform_profile_register(&pp_handler); +} + +static void remove_thermal_profile(void) +{ + if (quirks->thermal) + platform_profile_remove(); +} + static int __init alienware_wmi_init(void) { int ret; @@ -808,6 +1105,12 @@ static int __init alienware_wmi_init(void) goto fail_prep_deepsleep; } + if (quirks->thermal) { + ret = create_thermal_profile(); + if (ret) + goto fail_prep_thermal_profile; + } + ret = alienware_zone_init(platform_device); if (ret) goto fail_prep_zones; @@ -816,6 +1119,8 @@ static int __init alienware_wmi_init(void) fail_prep_zones: alienware_zone_exit(platform_device); + remove_thermal_profile(); +fail_prep_thermal_profile: fail_prep_deepsleep: fail_prep_amplifier: fail_prep_hdmi: @@ -835,6 +1140,7 @@ static void __exit alienware_wmi_exit(void) if (platform_device) { alienware_zone_exit(platform_device); remove_hdmi(platform_device); + remove_thermal_profile(); platform_device_unregister(platform_device); platform_driver_unregister(&platform_driver); }