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[108.228.232.20]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-12abbe21787sm10769272c88.11.2026.03.31.11.12.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 31 Mar 2026 11:12:18 -0700 (PDT) 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 v6 08/13] platform/x86: lenovo-wmi-other: Add GPU tunable attributes Date: Tue, 31 Mar 2026 18:12:03 +0000 Message-ID: <20260331181208.421552-9-derekjohn.clark@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260331181208.421552-1-derekjohn.clark@gmail.com> References: <20260331181208.421552-1-derekjohn.clark@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 Tested-by: Kurt Borja --- v4: - Align CPU feature enum values. - Remove gpu_oc_stat from Documentation. v3: - Remove gpu_oc_stat. --- .../wmi/devices/lenovo-wmi-other.rst | 10 ++ drivers/platform/x86/lenovo/wmi-capdata.h | 1 + drivers/platform/x86/lenovo/wmi-other.c | 105 ++++++++++++++++++ 3 files changed, 116 insertions(+) diff --git a/Documentation/wmi/devices/lenovo-wmi-other.rst b/Documentation= /wmi/devices/lenovo-wmi-other.rst index 82c17361e749..bfbea59637bd 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: =20 The following firmware-attributes are implemented: - 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_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/x= 86/lenovo/wmi-capdata.h index f2d45cd7a188..891b12ca1db6 100644 --- a/drivers/platform/x86/lenovo/wmi-capdata.h +++ b/drivers/platform/x86/lenovo/wmi-capdata.h @@ -20,6 +20,7 @@ =20 enum lwmi_device_id { LWMI_DEVICE_ID_CPU =3D 0x01, + LWMI_DEVICE_ID_GPU =3D 0x02, LWMI_DEVICE_ID_FAN =3D 0x04, }; =20 diff --git a/drivers/platform/x86/lenovo/wmi-other.c b/drivers/platform/x86= /lenovo/wmi-other.c index 508186c7410d..2792671ac1de 100644 --- a/drivers/platform/x86/lenovo/wmi-other.c +++ b/drivers/platform/x86/lenovo/wmi-other.c @@ -65,6 +65,19 @@ enum lwmi_feature_id_cpu { LWMI_FEATURE_ID_CPU_IPL =3D 0x09, }; =20 +enum lwmi_feature_id_gpu { + LWMI_FEATURE_ID_GPU_NV_PPAB =3D 0x01, + LWMI_FEATURE_ID_GPU_NV_CTGP =3D 0x02, + LWMI_FEATURE_ID_GPU_TEMP =3D 0x03, + LWMI_FEATURE_ID_GPU_AC_OFFSET =3D 0x04, + LWMI_FEATURE_ID_DGPU_BOOST_CLK =3D 0x06, + LWMI_FEATURE_ID_DGPU_EN =3D 0x07, + LWMI_FEATURE_ID_GPU_MODE =3D 0x08, + LWMI_FEATURE_ID_DGPU_DIDVID =3D 0x09, + LWMI_FEATURE_ID_GPU_NV_BPL =3D 0x0a, + LWMI_FEATURE_ID_GPU_NV_CPU_BOOST =3D 0x0b, +}; + #define LWMI_FEATURE_ID_FAN_RPM 0x03 =20 #define LWMI_TYPE_ID_CROSSLOAD 0x01 @@ -630,6 +643,66 @@ static struct tunable_attr_01 ppt_pl4_ipl_cl =3D { .type_id =3D LWMI_TYPE_ID_CROSSLOAD, }; =20 +static struct tunable_attr_01 gpu_nv_ppab =3D { + .device_id =3D LWMI_DEVICE_ID_GPU, + .feature_id =3D LWMI_FEATURE_ID_GPU_NV_PPAB, + .type_id =3D LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 gpu_nv_ctgp =3D { + .device_id =3D LWMI_DEVICE_ID_GPU, + .feature_id =3D LWMI_FEATURE_ID_GPU_NV_CTGP, + .type_id =3D LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 gpu_temp =3D { + .device_id =3D LWMI_DEVICE_ID_GPU, + .feature_id =3D LWMI_FEATURE_ID_GPU_TEMP, + .type_id =3D LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 gpu_nv_ac_offset =3D { + .device_id =3D LWMI_DEVICE_ID_GPU, + .feature_id =3D LWMI_FEATURE_ID_GPU_AC_OFFSET, + .type_id =3D LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 dgpu_boost_clk =3D { + .device_id =3D LWMI_DEVICE_ID_GPU, + .feature_id =3D LWMI_FEATURE_ID_DGPU_BOOST_CLK, + .type_id =3D LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 dgpu_enable =3D { + .device_id =3D LWMI_DEVICE_ID_GPU, + .feature_id =3D LWMI_FEATURE_ID_DGPU_EN, + .type_id =3D LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 gpu_mode =3D { + .device_id =3D LWMI_DEVICE_ID_GPU, + .feature_id =3D LWMI_FEATURE_ID_GPU_MODE, + .type_id =3D LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 dgpu_didvid =3D { + .device_id =3D LWMI_DEVICE_ID_GPU, + .feature_id =3D LWMI_FEATURE_ID_DGPU_DIDVID, + .type_id =3D LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 gpu_nv_bpl =3D { + .device_id =3D LWMI_DEVICE_ID_GPU, + .feature_id =3D LWMI_FEATURE_ID_GPU_NV_BPL, + .type_id =3D LWMI_TYPE_ID_NONE, +}; + +static struct tunable_attr_01 gpu_nv_cpu_boost =3D { + .device_id =3D LWMI_DEVICE_ID_GPU, + .feature_id =3D LWMI_FEATURE_ID_GPU_NV_CPU_BOOST, + .type_id =3D LWMI_TYPE_ID_NONE, +}; + struct capdata01_attr_group { const struct attribute_group *attr_group; struct tunable_attr_01 *tunable_attr; @@ -1061,6 +1134,7 @@ static bool lwmi_attr_01_is_supported(struct tunable_= attr_01 *tunable_attr) .name =3D _fsname, .attrs =3D _attrname##_attrs \ } =20 +/* 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", @@ -1086,9 +1160,40 @@ 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"); =20 +/* GPU tunable attributes */ +LWMI_ATTR_GROUP_TUNABLE_CAP01(dgpu_boost_clk, "gpu_boost_clk", + "Set the dedicated GPU boost clock"); +LWMI_ATTR_GROUP_TUNABLE_CAP01(dgpu_didvid, "gpu_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"); =20 static struct capdata01_attr_group cd01_attr_groups[] =3D { { &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 }, --=20 2.53.0