From nobody Tue Apr 7 20:06:12 2026 Received: from mail-dy1-f176.google.com (mail-dy1-f176.google.com [74.125.82.176]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 732AF38422D for ; Thu, 12 Mar 2026 03:10:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.176 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773285042; cv=none; b=gJQYuUHiZMgjWVzU/qACSv1iqdQZlYTw5h75zbpHqoYFasJaAhyGXuVAMHS3imVgKD3xsMTS1O6ZPdKesyplFP9TyoWplPsLjAwW/mcrtNXmmi+ZqZufQPcuVWU3ux8Wnx1lqpBgiRB7j0kk1DniPgdwhT1eWcDNQjYZ5KvX/ww= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773285042; c=relaxed/simple; bh=nUwBD+vJyzvnR/4LUOgFszn4MlNXSSIUimJRhv0THLE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Fk8X5855pOzagSTrcvmPS3zOYTDQ7rvVX86cc8ETz+v+YMRhWbDMC2hvJjugobZgbmzBBBUJy+UC0KikPDnAT2EYvhuny+3ddVJ16rLrffhPhpMQgLzM7HU3m22dPwb8xUC5bEZVTSNxmZGR3Tv0GTB47merozR5LDbz8op2kLg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=O6kRhU0u; arc=none smtp.client-ip=74.125.82.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="O6kRhU0u" Received: by mail-dy1-f176.google.com with SMTP id 5a478bee46e88-2be1c918173so903954eec.1 for ; Wed, 11 Mar 2026 20:10:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1773285040; x=1773889840; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=d6BUowh16N9n58eqqEsAwSeb4O3H8onAffV8REkHHqQ=; b=O6kRhU0u990OY7RqugFt5ZLnE6AqOAXegiedER9AxGeXClILlmiYnlBHurNfJ02jhh e/YTakUsCcHbDqoSH7arjoeSC3WCyuKI4pxYmVZH8ZACNEZirH2R+rkX6dv0VsZiIrp8 xJaK72q0I2nQPolwc4bauTeZUxV7MdXqzSnp/5rB3GF99LI3QK6rcKriH9ecJ9PACNuO KQAShpWtQ69rnQ2IKspaojb/GXOnvM+1oT5rv+sNXU6WJpvW6rb16L4GWv8gBqw4H/QH gtKbMuGFl2mfFBDhbc97/ch+pYJK1oB5MCRlR5hLfPbmED0XBbeKK4y2z+B6QCia19vY DbtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1773285040; x=1773889840; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=d6BUowh16N9n58eqqEsAwSeb4O3H8onAffV8REkHHqQ=; b=IAP4I+6/gDJAUP4sXQEKfkx6vbCnvMCaWDCpuRnrSzbRiSgFbsiV9018yqTGPpH9Rx lxKyzmRWtSxQt9oa8C7HCAUiC6zIHqY07/kTN4PKzV7Kf9snpYIQKSDrQZL2WG8nI+BW BvcTJk56UXKw+G/1a7s3GML9xZ+ngGMOxJJwV96bU/jfnArh8smO9ajn/AatVWpijMY0 zSF8Nj9xT8EzwP5rI5Mbs9XghdVEXZk4t0XPJaKDaRdBpGCDTRfUzOl+rrIrDJmnOunL pIlQpTo/yIA0aK0WpgPz3B/CZ95GP05xgn856Od3LkvOvJXTnjj/qEveIMnhQLWbwMk7 0xpQ== X-Forwarded-Encrypted: i=1; AJvYcCUCaN9v9SfCnoTGMIBoUaIXI/41yaro/tiSQiRYJKJgLnnkgIOKDVoyesN9xOdjDlVUGlXcBFUlFE4fPOg=@vger.kernel.org X-Gm-Message-State: AOJu0YwkTwGfBeA+AIB80OpH9vuVBKOZI6hT7xhH/iuPHq6W+ysjlQ3j LWepW50ZBGMDamNn3VA5JLUQmRwm4Rz8o32GLQ+KOiSCnt5b0+Ustur6 X-Gm-Gg: ATEYQzz7fjMMe8nKeW299myV4fAu2dmSJratf9k0ROjsvLyyBpaI+vCVvkbaTULBmaN E3wwo8zS3oyByx2ev7Zko8wPSkoymT6IzRhtdAqx/LKlTMdVIUXU2b8k5FB9yJayEsjXH+QUITC 8IQx8o5hqwvWzHBN3rB56Vws4r6/hs7XtHO0EYcrou7unciVyAk5PGzyE4i0l4sYE5vpmqvhWHt 6KsY9wQn/bP2jaeK1vZXjGXM88zxfCCaulxc/z4afxeTWyCbull1z48UoK/XYpVmaCgiGH6s4ET J/sZVwtap8Hy7HkCY1kw6yNzXHd6nsMJwyaqxiPJwZuoENeyWPLKNpeBaFTLU4cxXAPDS6/vX56 9Em2t54L4SjYn/jRUJq9pjkoZHqr/mT1YtTu6gCDdg6WAYkhsn01TtdJtJXT2WkTzflAVMLqENT uptaAQIRN24zV+zc2T+GgwsZp847fiVmhdyG/dTZZDT5TBkZJKqDGxHxAm69rjX0TKvV7BJL7bI +uZ X-Received: by 2002:a05:7300:fb88:b0:2be:1dc7:999a with SMTP id 5a478bee46e88-2be8a24ec2cmr2305296eec.4.1773285039575; Wed, 11 Mar 2026 20:10:39 -0700 (PDT) Received: from lappy (108-228-232-20.lightspeed.sndgca.sbcglobal.net. [108.228.232.20]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2be8aa97dcfsm4802495eec.33.2026.03.11.20.10.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Mar 2026 20:10:39 -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 v4 6/8] platform/x86: lenovo-wmi-other: Add GPU tunable attributes Date: Thu, 12 Mar 2026 03:10:30 +0000 Message-ID: <20260312031032.3467565-7-derekjohn.clark@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260312031032.3467565-1-derekjohn.clark@gmail.com> References: <20260312031032.3467565-1-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: Mark Pearson Signed-off-by: Derek J. Clark --- 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 0e61a873d5ff..196481b1ce17 100644 --- a/drivers/platform/x86/lenovo/wmi-capdata.h +++ b/drivers/platform/x86/lenovo/wmi-capdata.h @@ -19,6 +19,7 @@ =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 11b5f71092fe..7b98e9271eec 100644 --- a/drivers/platform/x86/lenovo/wmi-other.c +++ b/drivers/platform/x86/lenovo/wmi-other.c @@ -66,6 +66,19 @@ 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_NONE 0x00 @@ -649,6 +662,66 @@ 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; @@ -1079,6 +1152,7 @@ static int lwmi_attr_01_is_supported(struct tunable_a= ttr_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", @@ -1104,9 +1178,40 @@ 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