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[108.228.232.20]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2ba9dd0a04csm4975052eec.33.2026.02.13.00.12.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Feb 2026 00:12:55 -0800 (PST) From: "Derek J. Clark" To: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= , Hans de Goede Cc: Mark Pearson , Armin Wolf , Jonathan Corbet , Rong Zhang , Kurt Borja , "Derek J . Clark" , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 4/5] platform/x86: lenovo-wmi-other: Add GPU tunable attributes Date: Fri, 13 Feb 2026 08:02:56 +0000 Message-ID: <20260213081243.794288-5-derekjohn.clark@gmail.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260213081243.794288-1-derekjohn.clark@gmail.com> References: <20260213081243.794288-1-derekjohn.clark@gmail.com> Precedence: bulk X-Mailing-List: platform-driver-x86@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Use an enum for all GPU attribute feature ID's and add GPU attributes. Signed-off-by: Derek J. Clark --- .../wmi/devices/lenovo-wmi-other.rst | 11 ++ drivers/platform/x86/lenovo/wmi-capdata.h | 1 + drivers/platform/x86/lenovo/wmi-other.c | 114 ++++++++++++++++++ 3 files changed, 126 insertions(+) diff --git a/Documentation/wmi/devices/lenovo-wmi-other.rst b/Documentation/wmi/devices/lenovo-wmi-other.rst index f4763ed66cc6d..f7564b23bb7f0 100644 --- a/Documentation/wmi/devices/lenovo-wmi-other.rst +++ b/Documentation/wmi/devices/lenovo-wmi-other.rst @@ -70,6 +70,17 @@ Each attribute has the following properties: The following firmware-attributes are implemented: - cpu_oc_stat: CPU Overlocking Status - cpu_temp: CPU Thermal Load Limit + - dgpu_boost_clk: Dedicated GPU Boost Clock + - dgpu_enable: Dedicated GPU Enabled Status + - gpu_didvid: GPU Device Identifier and Vendor Identifier + - 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_oc_stat: GPU Overclocking Status + - 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 aa48f43cbb43b..b7f9ee7b301a5 100644 --- a/drivers/platform/x86/lenovo/wmi-capdata.h +++ b/drivers/platform/x86/lenovo/wmi-capdata.h @@ -25,6 +25,7 @@ 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 7713a096077dd..cc024cb369b0f 100644 --- a/drivers/platform/x86/lenovo/wmi-other.c +++ b/drivers/platform/x86/lenovo/wmi-other.c @@ -66,6 +66,20 @@ 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_GPU_OC = 0x05, + 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_NONE 0x00 @@ -638,6 +652,72 @@ 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 gpu_oc_stat = { + .device_id = LWMI_DEVICE_ID_GPU, + .feature_id = LWMI_FEATURE_ID_GPU_OC, + .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; @@ -1076,6 +1156,7 @@ static int lwmi_attr_01_is_supported(struct tunable_attr_01 *tunable_attr) .name = _fsname, .attrs = _attrname##_attrs \ } +/* CPU tunable attributes */ LWMI_ATTR_GROUP_TUNABLE_CAP01(ppt_pl1_spl, "ppt_pl1_spl", "Set the CPU sustained power limit"); LWMI_ATTR_GROUP_TUNABLE_CAP01(ppt_pl1_spl_cl, "ppt_pl1_spl_cl", @@ -1103,6 +1184,29 @@ 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(gpu_nv_ppab, "gpu_nv_ppab", + "Set the Nvidia GPU power performance aware 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_temp, "gpu_temp", + "Set the GPU thermal load 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_oc_stat, "gpu_oc_stat", + "Set the GPU overclocking status"); +LWMI_ATTR_GROUP_TUNABLE_CAP01(dgpu_boost_clk, "gpu_boost_clk", + "Set the dedicated GPU boost clock"); +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(dgpu_didvid, "gpu_didvid", + "Get the GPU device identifier and vendor identifier"); +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"); static struct capdata01_attr_group cd01_attr_groups[] = { { &ppt_pl1_spl_attr_group, &ppt_pl1_spl }, @@ -1118,6 +1222,16 @@ static struct capdata01_attr_group cd01_attr_groups[] = { { &cpu_oc_stat_attr_group, &cpu_oc_stat }, { &ppt_pl4_ipl_attr_group, &ppt_pl4_ipl }, { &ppt_pl4_ipl_cl_attr_group, &ppt_pl4_ipl_cl }, + { &gpu_nv_ppab_attr_group, &gpu_nv_ppab }, + { &gpu_nv_ctgp_attr_group, &gpu_nv_ctgp }, + { &gpu_temp_attr_group, &gpu_temp }, + { &gpu_nv_ac_offset_attr_group, &gpu_nv_ac_offset }, + { &gpu_oc_stat_attr_group, &gpu_oc_stat }, + { &dgpu_boost_clk_attr_group, &dgpu_boost_clk }, + { &dgpu_enable_attr_group, &dgpu_enable }, + { &dgpu_didvid_attr_group, &dgpu_didvid }, + { &gpu_nv_bpl_attr_group, &gpu_nv_bpl }, + { &gpu_nv_cpu_boost_attr_group, &gpu_nv_cpu_boost }, {}, }; -- 2.52.0