From: Derek J. Clark Date: Wed, 20 May 2026 06:07:35 +0000 (+0000) Subject: platform/x86: lenovo-wmi-other: Add GPU tunable attributes X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=b51fa3b00e0339bebeac7d0c1beb13f494f6fe41;p=thirdparty%2Fkernel%2Flinux.git platform/x86: lenovo-wmi-other: Add GPU tunable attributes Use an enum for all GPU attribute feature ID's and add GPU attributes. Reviewed-by: Rong Zhang Reviewed-by: Mark Pearson Signed-off-by: Derek J. Clark Link: https://patch.msgid.link/20260520060740.119554-3-derekjohn.clark@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- diff --git a/Documentation/wmi/devices/lenovo-wmi-other.rst b/Documentation/wmi/devices/lenovo-wmi-other.rst index 189dd4d31926d..011054d64eac5 100644 --- a/Documentation/wmi/devices/lenovo-wmi-other.rst +++ b/Documentation/wmi/devices/lenovo-wmi-other.rst @@ -69,6 +69,16 @@ Each attribute has the following properties: The following firmware-attributes are implemented: - cpu_temp: CPU Thermal Load Limit + - dgpu_boost_clk: Dedicated GPU Boost Clock + - dgpu_didvid: Dedicated GPU Device Identifier and Vendor Identifier + - dgpu_enable: Dedicated GPU Enabled Status + - gpu_mode: GPU Mode by Power Limit + - gpu_nv_ac_offset: Nvidia GPU AC Total Processing Power Baseline Offset + - gpu_nv_bpl: Nvidia GPU Base Power Limit + - gpu_nv_cpu_boost: Nvidia GPU to CPU Dynamic Boost Limit + - gpu_nv_ctgp: Nvidia GPU Configurable Total Graphics Power + - gpu_nv_ppab: Nvidia GPU Power Performance Aware Boost Limit + - gpu_temp: GPU Thermal Load Limit - ppt_cpu_cl: CPU Cross Loading Power Limit - ppt_pl1_apu_spl: Platform Profile Tracking APU Sustained Power Limit - ppt_pl1_spl: Platform Profile Tracking Sustained Power Limit diff --git a/drivers/platform/x86/lenovo/wmi-capdata.h b/drivers/platform/x86/lenovo/wmi-capdata.h index c74a0e5294e78..a7cfdeaa58f77 100644 --- a/drivers/platform/x86/lenovo/wmi-capdata.h +++ b/drivers/platform/x86/lenovo/wmi-capdata.h @@ -20,6 +20,7 @@ enum lwmi_device_id { LWMI_DEVICE_ID_CPU = 0x01, + LWMI_DEVICE_ID_GPU = 0x02, LWMI_DEVICE_ID_FAN = 0x04, }; diff --git a/drivers/platform/x86/lenovo/wmi-other.c b/drivers/platform/x86/lenovo/wmi-other.c index fe4cd7da017eb..9a6183bbcc920 100644 --- a/drivers/platform/x86/lenovo/wmi-other.c +++ b/drivers/platform/x86/lenovo/wmi-other.c @@ -62,6 +62,19 @@ enum lwmi_feature_id_cpu { LWMI_FEATURE_ID_CPU_IPL = 0x09, }; +enum lwmi_feature_id_gpu { + LWMI_FEATURE_ID_GPU_NV_PPAB = 0x01, + LWMI_FEATURE_ID_GPU_NV_CTGP = 0x02, + LWMI_FEATURE_ID_GPU_TEMP = 0x03, + LWMI_FEATURE_ID_GPU_AC_OFFSET = 0x04, + LWMI_FEATURE_ID_DGPU_BOOST_CLK = 0x06, + LWMI_FEATURE_ID_DGPU_EN = 0x07, + LWMI_FEATURE_ID_GPU_MODE = 0x08, + LWMI_FEATURE_ID_DGPU_DIDVID = 0x09, + LWMI_FEATURE_ID_GPU_NV_BPL = 0x0a, + LWMI_FEATURE_ID_GPU_NV_CPU_BOOST = 0x0b, +}; + #define LWMI_FEATURE_ID_FAN_RPM 0x03 #define LWMI_TYPE_ID_CROSSLOAD 0x01 @@ -639,6 +652,66 @@ static struct tunable_attr_01 ppt_pl4_ipl_cl = { .type_id = LWMI_TYPE_ID_CROSSLOAD, }; +static struct tunable_attr_01 gpu_nv_ppab = { + .device_id = LWMI_DEVICE_ID_GPU, + .feature_id = LWMI_FEATURE_ID_GPU_NV_PPAB, + .type_id = LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 gpu_nv_ctgp = { + .device_id = LWMI_DEVICE_ID_GPU, + .feature_id = LWMI_FEATURE_ID_GPU_NV_CTGP, + .type_id = LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 gpu_temp = { + .device_id = LWMI_DEVICE_ID_GPU, + .feature_id = LWMI_FEATURE_ID_GPU_TEMP, + .type_id = LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 gpu_nv_ac_offset = { + .device_id = LWMI_DEVICE_ID_GPU, + .feature_id = LWMI_FEATURE_ID_GPU_AC_OFFSET, + .type_id = LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 dgpu_boost_clk = { + .device_id = LWMI_DEVICE_ID_GPU, + .feature_id = LWMI_FEATURE_ID_DGPU_BOOST_CLK, + .type_id = LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 dgpu_enable = { + .device_id = LWMI_DEVICE_ID_GPU, + .feature_id = LWMI_FEATURE_ID_DGPU_EN, + .type_id = LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 gpu_mode = { + .device_id = LWMI_DEVICE_ID_GPU, + .feature_id = LWMI_FEATURE_ID_GPU_MODE, + .type_id = LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 dgpu_didvid = { + .device_id = LWMI_DEVICE_ID_GPU, + .feature_id = LWMI_FEATURE_ID_DGPU_DIDVID, + .type_id = LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 gpu_nv_bpl = { + .device_id = LWMI_DEVICE_ID_GPU, + .feature_id = LWMI_FEATURE_ID_GPU_NV_BPL, + .type_id = LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 gpu_nv_cpu_boost = { + .device_id = LWMI_DEVICE_ID_GPU, + .feature_id = LWMI_FEATURE_ID_GPU_NV_CPU_BOOST, + .type_id = LWMI_TYPE_ID_NONE, +}; + struct capdata01_attr_group { const struct attribute_group *attr_group; struct tunable_attr_01 *tunable_attr; @@ -974,6 +1047,7 @@ static bool lwmi_attr_01_is_supported(struct tunable_attr_01 *tunable_attr) .name = _fsname, .attrs = _attrname##_attrs \ } +/* CPU tunable attributes */ LWMI_ATTR_GROUP_TUNABLE_CAP01(cpu_temp, "cpu_temp", "Set the CPU thermal load limit"); LWMI_ATTR_GROUP_TUNABLE_CAP01(ppt_cpu_cl, "ppt_cpu_cl", @@ -999,9 +1073,40 @@ LWMI_ATTR_GROUP_TUNABLE_CAP01(ppt_pl4_ipl, "ppt_pl4_ipl", LWMI_ATTR_GROUP_TUNABLE_CAP01(ppt_pl4_ipl_cl, "ppt_pl4_ipl_cl", "Set the CPU cross loading instantaneous power limit"); +/* GPU tunable attributes */ +LWMI_ATTR_GROUP_TUNABLE_CAP01(dgpu_boost_clk, "dgpu_boost_clk", + "Set the dedicated GPU boost clock"); +LWMI_ATTR_GROUP_TUNABLE_CAP01(dgpu_didvid, "dgpu_didvid", + "Get the GPU device identifier and vendor identifier"); +LWMI_ATTR_GROUP_TUNABLE_CAP01(dgpu_enable, "dgpu_enable", + "Set the dedicated Nvidia GPU enabled status"); +LWMI_ATTR_GROUP_TUNABLE_CAP01(gpu_mode, "gpu_mode", + "Set the GPU mode by power limit"); +LWMI_ATTR_GROUP_TUNABLE_CAP01(gpu_nv_ac_offset, "gpu_nv_ac_offset", + "Set the Nvidia GPU AC total processing power baseline offset"); +LWMI_ATTR_GROUP_TUNABLE_CAP01(gpu_nv_bpl, "gpu_nv_bpl", + "Set the Nvidia GPU base power limit"); +LWMI_ATTR_GROUP_TUNABLE_CAP01(gpu_nv_cpu_boost, "gpu_nv_cpu_boost", + "Set the Nvidia GPU to CPU dynamic boost limit"); +LWMI_ATTR_GROUP_TUNABLE_CAP01(gpu_nv_ctgp, "gpu_nv_ctgp", + "Set the GPU configurable total graphics power"); +LWMI_ATTR_GROUP_TUNABLE_CAP01(gpu_nv_ppab, "gpu_nv_ppab", + "Set the Nvidia GPU power performance aware boost limit"); +LWMI_ATTR_GROUP_TUNABLE_CAP01(gpu_temp, "gpu_temp", + "Set the GPU thermal load limit"); static struct capdata01_attr_group cd01_attr_groups[] = { { &cpu_temp_attr_group, &cpu_temp }, + { &dgpu_boost_clk_attr_group, &dgpu_boost_clk }, + { &dgpu_didvid_attr_group, &dgpu_didvid }, + { &dgpu_enable_attr_group, &dgpu_enable }, + { &gpu_mode_attr_group, &gpu_mode }, + { &gpu_nv_ac_offset_attr_group, &gpu_nv_ac_offset }, + { &gpu_nv_bpl_attr_group, &gpu_nv_bpl }, + { &gpu_nv_cpu_boost_attr_group, &gpu_nv_cpu_boost }, + { &gpu_nv_ctgp_attr_group, &gpu_nv_ctgp }, + { &gpu_nv_ppab_attr_group, &gpu_nv_ppab }, + { &gpu_temp_attr_group, &gpu_temp }, { &ppt_cpu_cl_attr_group, &ppt_cpu_cl }, { &ppt_pl1_apu_spl_attr_group, &ppt_pl1_apu_spl }, { &ppt_pl1_spl_attr_group, &ppt_pl1_spl },