[V3 5/7] drm/amd/pm: add fan acoustic target OD setting support for SMU13

Evan Quan evan.quan at amd.com
Wed Aug 30 05:56:46 UTC 2023


Add SMU13 fan acoustic target OD setting support.

Signed-off-by: Evan Quan <evan.quan at amd.com>
--
v1->v2:
  - add missing kerneldoc for the new interface(Alex)
v2->v3:
  - rich the document for the new interface(Alex)
---
 Documentation/gpu/amdgpu/thermal.rst          |  6 ++
 .../gpu/drm/amd/include/kgd_pp_interface.h    |  2 +
 drivers/gpu/drm/amd/pm/amdgpu_pm.c            | 65 +++++++++++++++++++
 drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h       |  2 +
 drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c     |  2 +
 drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h  |  1 +
 .../drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c  | 51 ++++++++++++++-
 .../drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c  | 51 ++++++++++++++-
 8 files changed, 178 insertions(+), 2 deletions(-)

diff --git a/Documentation/gpu/amdgpu/thermal.rst b/Documentation/gpu/amdgpu/thermal.rst
index 8ed888f81d2c..26ca4812b9f6 100644
--- a/Documentation/gpu/amdgpu/thermal.rst
+++ b/Documentation/gpu/amdgpu/thermal.rst
@@ -76,6 +76,12 @@ acoustic_limit_rpm_threshold
 .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
    :doc: acoustic_limit_rpm_threshold
 
+acoustic_target_rpm_threshold
+-----------------------------
+
+.. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
+   :doc: acoustic_target_rpm_threshold
+
 GFXOFF
 ======
 
diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
index e3dcef8c4ab7..a7bc81a0a36e 100644
--- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
@@ -115,6 +115,7 @@ enum pp_clock_type {
 	OD_CCLK,
 	OD_FAN_CURVE,
 	OD_ACOUSTIC_LIMIT,
+	OD_ACOUSTIC_TARGET,
 };
 
 enum amd_pp_sensors {
@@ -191,6 +192,7 @@ enum PP_OD_DPM_TABLE_COMMAND {
 	PP_OD_EDIT_VDDGFX_OFFSET,
 	PP_OD_EDIT_FAN_CURVE,
 	PP_OD_EDIT_ACOUSTIC_LIMIT,
+	PP_OD_EDIT_ACOUSTIC_TARGET,
 };
 
 struct pp_states_info {
diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index 1ec8a8c4016a..0d63d31b05d3 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -3630,6 +3630,63 @@ static umode_t acoustic_limit_threshold_visible(struct amdgpu_device *adev)
 	return umode;
 }
 
+/**
+ * DOC: acoustic_target_rpm_threshold
+ *
+ * The amdgpu driver provides a sysfs API for checking and adjusting the
+ * acoustic target in RPM for fan control.
+ *
+ * Reading back the file shows you the current setting and the permitted
+ * ranges if changable.
+ *
+ * Writing an integer to the file, change the setting accordingly.
+ *
+ * When you have finished the editing, write "c" (commit) to the file to commit
+ * your changes.
+ *
+ * This setting works under auto fan control mode only. It can co-exist with
+ * other settings which can work also under auto mode. It adjusts the PMFW's
+ * behavior about the maximum speed in RPM the fan can spin when ASIC
+ * temperature is not greater than target temperature. Setting via this
+ * interface will switch the fan control to auto mode implicitly.
+ */
+static ssize_t acoustic_target_threshold_show(struct kobject *kobj,
+					      struct kobj_attribute *attr,
+					      char *buf)
+{
+	struct od_kobj *container = container_of(kobj, struct od_kobj, kobj);
+	struct amdgpu_device *adev = (struct amdgpu_device *)container->priv;
+
+	return (ssize_t)amdgpu_retrieve_od_settings(adev, OD_ACOUSTIC_TARGET, buf);
+}
+
+static ssize_t acoustic_target_threshold_store(struct kobject *kobj,
+					       struct kobj_attribute *attr,
+					       const char *buf,
+					       size_t count)
+{
+	struct od_kobj *container = container_of(kobj, struct od_kobj, kobj);
+	struct amdgpu_device *adev = (struct amdgpu_device *)container->priv;
+
+	return (ssize_t)amdgpu_distribute_custom_od_settings(adev,
+							     PP_OD_EDIT_ACOUSTIC_TARGET,
+							     buf,
+							     count);
+}
+
+static umode_t acoustic_target_threshold_visible(struct amdgpu_device *adev)
+{
+	umode_t umode = 0000;
+
+	if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_RETRIEVE)
+		umode |= S_IRUSR | S_IRGRP | S_IROTH;
+
+	if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET)
+		umode |= S_IWUSR;
+
+	return umode;
+}
+
 static struct od_feature_set amdgpu_od_set = {
 	.containers = {
 		[0] = {
@@ -3651,6 +3708,14 @@ static struct od_feature_set amdgpu_od_set = {
 						.store = acoustic_limit_threshold_store,
 					},
 				},
+				[2] = {
+					.name = "acoustic_target_rpm_threshold",
+					.ops = {
+						.is_visible = acoustic_target_threshold_visible,
+						.show = acoustic_target_threshold_show,
+						.store = acoustic_target_threshold_store,
+					},
+				},
 			},
 		},
 	},
diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
index 984fda278f1a..bcb37ba8db58 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
@@ -318,6 +318,8 @@ struct config_table_setting
 #define OD_OPS_SUPPORT_FAN_CURVE_SET			BIT(1)
 #define OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_RETRIEVE	BIT(2)
 #define OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_SET		BIT(3)
+#define OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_RETRIEVE	BIT(4)
+#define OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET		BIT(5)
 
 struct amdgpu_pm {
 	struct mutex		mutex;
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index ca41cfd57d89..0f1e805e166c 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -2485,6 +2485,8 @@ static enum smu_clk_type smu_convert_to_smuclk(enum pp_clock_type type)
 		clk_type = SMU_OD_FAN_CURVE; break;
 	case OD_ACOUSTIC_LIMIT:
 		clk_type = SMU_OD_ACOUSTIC_LIMIT; break;
+	case OD_ACOUSTIC_TARGET:
+		clk_type = SMU_OD_ACOUSTIC_TARGET; break;
 	default:
 		clk_type = SMU_CLK_COUNT; break;
 	}
diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h
index 76bb1cba9b83..b2e9874f4a0e 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h
+++ b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h
@@ -282,6 +282,7 @@ enum smu_clk_type {
 	SMU_OD_VDDGFX_OFFSET,
 	SMU_OD_FAN_CURVE,
 	SMU_OD_ACOUSTIC_LIMIT,
+	SMU_OD_ACOUSTIC_TARGET,
 	SMU_CLK_COUNT,
 };
 
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
index 53636552508f..a718b530b0d5 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
@@ -104,6 +104,7 @@
 #define PP_OD_FEATURE_FAN_CURVE_TEMP			5
 #define PP_OD_FEATURE_FAN_CURVE_PWM			6
 #define PP_OD_FEATURE_FAN_ACOUSTIC_LIMIT		7
+#define PP_OD_FEATURE_FAN_ACOUSTIC_TARGET		8
 
 #define LINK_SPEED_MAX					3
 
@@ -1125,6 +1126,10 @@ static void smu_v13_0_0_get_od_setting_limits(struct smu_context *smu,
 		od_min_setting = overdrive_lowerlimits->AcousticLimitRpmThreshold;
 		od_max_setting = overdrive_upperlimits->AcousticLimitRpmThreshold;
 		break;
+	case PP_OD_FEATURE_FAN_ACOUSTIC_TARGET:
+		od_min_setting = overdrive_lowerlimits->AcousticTargetRpmThreshold;
+		od_max_setting = overdrive_upperlimits->AcousticTargetRpmThreshold;
+		break;
 	default:
 		od_min_setting = od_max_setting = INT_MAX;
 		break;
@@ -1391,6 +1396,24 @@ static int smu_v13_0_0_print_clk_levels(struct smu_context *smu,
 				      min_value, max_value);
 		break;
 
+	case SMU_OD_ACOUSTIC_TARGET:
+		if (!smu_v13_0_0_is_od_feature_supported(smu,
+							 PP_OD_FEATURE_FAN_CURVE_BIT))
+			break;
+
+		size += sysfs_emit_at(buf, size, "OD_ACOUSTIC_TARGET:\n");
+		size += sysfs_emit_at(buf, size, "%d\n",
+					(int)od_table->OverDriveTable.AcousticTargetRpmThreshold);
+
+		size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE");
+		smu_v13_0_0_get_od_setting_limits(smu,
+						  PP_OD_FEATURE_FAN_ACOUSTIC_TARGET,
+						  &min_value,
+						  &max_value);
+		size += sysfs_emit_at(buf, size, "ACOUSTIC_TARGET: %u %u\n",
+				      min_value, max_value);
+		break;
+
 	case SMU_OD_RANGE:
 		if (!smu_v13_0_0_is_od_feature_supported(smu, PP_OD_FEATURE_GFXCLK_BIT) &&
 		    !smu_v13_0_0_is_od_feature_supported(smu, PP_OD_FEATURE_UCLK_BIT) &&
@@ -1661,6 +1684,28 @@ static int smu_v13_0_0_od_edit_dpm_table(struct smu_context *smu,
 		od_table->OverDriveTable.FeatureCtrlMask |= BIT(PP_OD_FEATURE_FAN_CURVE_BIT);
 		break;
 
+	case PP_OD_EDIT_ACOUSTIC_TARGET:
+		if (!smu_v13_0_0_is_od_feature_supported(smu, PP_OD_FEATURE_FAN_CURVE_BIT)) {
+			dev_warn(adev->dev, "Fan curve setting not supported!\n");
+			return -ENOTSUPP;
+		}
+
+		smu_v13_0_0_get_od_setting_limits(smu,
+						  PP_OD_FEATURE_FAN_ACOUSTIC_TARGET,
+						  &minimum,
+						  &maximum);
+		if (input[0] < minimum ||
+		    input[0] > maximum) {
+			dev_info(adev->dev, "acoustic target threshold setting(%ld) must be within [%d, %d]!\n",
+				 input[0], minimum, maximum);
+			return -EINVAL;
+		}
+
+		od_table->OverDriveTable.AcousticTargetRpmThreshold = input[0];
+		od_table->OverDriveTable.FanMode = FAN_MODE_AUTO;
+		od_table->OverDriveTable.FeatureCtrlMask |= BIT(PP_OD_FEATURE_FAN_CURVE_BIT);
+		break;
+
 	case PP_OD_RESTORE_DEFAULT_TABLE:
 		feature_ctrlmask = od_table->OverDriveTable.FeatureCtrlMask;
 		memcpy(od_table,
@@ -1920,7 +1965,9 @@ static void smu_v13_0_0_set_supported_od_feature_mask(struct smu_context *smu)
 		adev->pm.od_feature_mask |= OD_OPS_SUPPORT_FAN_CURVE_RETRIEVE |
 					    OD_OPS_SUPPORT_FAN_CURVE_SET |
 					    OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_RETRIEVE |
-					    OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_SET;
+					    OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_SET |
+					    OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_RETRIEVE |
+					    OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET;
 }
 
 static int smu_v13_0_0_set_default_od_settings(struct smu_context *smu)
@@ -1980,6 +2027,8 @@ static int smu_v13_0_0_set_default_od_settings(struct smu_context *smu)
 		}
 		user_od_table->OverDriveTable.AcousticLimitRpmThreshold =
 			user_od_table_bak.OverDriveTable.AcousticLimitRpmThreshold;
+		user_od_table->OverDriveTable.AcousticTargetRpmThreshold =
+			user_od_table_bak.OverDriveTable.AcousticTargetRpmThreshold;
 	}
 
 	smu_v13_0_0_set_supported_od_feature_mask(smu);
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
index 26a6b7e73c94..17302f235fc2 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c
@@ -80,6 +80,7 @@
 #define PP_OD_FEATURE_FAN_CURVE_TEMP			5
 #define PP_OD_FEATURE_FAN_CURVE_PWM			6
 #define PP_OD_FEATURE_FAN_ACOUSTIC_LIMIT		7
+#define PP_OD_FEATURE_FAN_ACOUSTIC_TARGET		8
 
 #define LINK_SPEED_MAX					3
 
@@ -1111,6 +1112,10 @@ static void smu_v13_0_7_get_od_setting_limits(struct smu_context *smu,
 		od_min_setting = overdrive_lowerlimits->AcousticLimitRpmThreshold;
 		od_max_setting = overdrive_upperlimits->AcousticLimitRpmThreshold;
 		break;
+	case PP_OD_FEATURE_FAN_ACOUSTIC_TARGET:
+		od_min_setting = overdrive_lowerlimits->AcousticTargetRpmThreshold;
+		od_max_setting = overdrive_upperlimits->AcousticTargetRpmThreshold;
+		break;
 	default:
 		od_min_setting = od_max_setting = INT_MAX;
 		break;
@@ -1377,6 +1382,24 @@ static int smu_v13_0_7_print_clk_levels(struct smu_context *smu,
 				      min_value, max_value);
 		break;
 
+	case SMU_OD_ACOUSTIC_TARGET:
+		if (!smu_v13_0_7_is_od_feature_supported(smu,
+							 PP_OD_FEATURE_FAN_CURVE_BIT))
+			break;
+
+		size += sysfs_emit_at(buf, size, "OD_ACOUSTIC_TARGET:\n");
+		size += sysfs_emit_at(buf, size, "%d\n",
+					(int)od_table->OverDriveTable.AcousticTargetRpmThreshold);
+
+		size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE");
+		smu_v13_0_7_get_od_setting_limits(smu,
+						  PP_OD_FEATURE_FAN_ACOUSTIC_TARGET,
+						  &min_value,
+						  &max_value);
+		size += sysfs_emit_at(buf, size, "ACOUSTIC_TARGET: %u %u\n",
+				      min_value, max_value);
+		break;
+
 	case SMU_OD_RANGE:
 		if (!smu_v13_0_7_is_od_feature_supported(smu, PP_OD_FEATURE_GFXCLK_BIT) &&
 		    !smu_v13_0_7_is_od_feature_supported(smu, PP_OD_FEATURE_UCLK_BIT) &&
@@ -1647,6 +1670,28 @@ static int smu_v13_0_7_od_edit_dpm_table(struct smu_context *smu,
 		od_table->OverDriveTable.FeatureCtrlMask |= BIT(PP_OD_FEATURE_FAN_CURVE_BIT);
 		break;
 
+	case PP_OD_EDIT_ACOUSTIC_TARGET:
+		if (!smu_v13_0_7_is_od_feature_supported(smu, PP_OD_FEATURE_FAN_CURVE_BIT)) {
+			dev_warn(adev->dev, "Fan curve setting not supported!\n");
+			return -ENOTSUPP;
+		}
+
+		smu_v13_0_7_get_od_setting_limits(smu,
+						  PP_OD_FEATURE_FAN_ACOUSTIC_TARGET,
+						  &minimum,
+						  &maximum);
+		if (input[0] < minimum ||
+		    input[0] > maximum) {
+			dev_info(adev->dev, "acoustic target threshold setting(%ld) must be within [%d, %d]!\n",
+				 input[0], minimum, maximum);
+			return -EINVAL;
+		}
+
+		od_table->OverDriveTable.AcousticTargetRpmThreshold = input[0];
+		od_table->OverDriveTable.FanMode = FAN_MODE_AUTO;
+		od_table->OverDriveTable.FeatureCtrlMask |= BIT(PP_OD_FEATURE_FAN_CURVE_BIT);
+		break;
+
 	case PP_OD_RESTORE_DEFAULT_TABLE:
 		feature_ctrlmask = od_table->OverDriveTable.FeatureCtrlMask;
 		memcpy(od_table,
@@ -1901,7 +1946,9 @@ static void smu_v13_0_7_set_supported_od_feature_mask(struct smu_context *smu)
 		adev->pm.od_feature_mask |= OD_OPS_SUPPORT_FAN_CURVE_RETRIEVE |
 					    OD_OPS_SUPPORT_FAN_CURVE_SET |
 					    OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_RETRIEVE |
-					    OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_SET;
+					    OD_OPS_SUPPORT_ACOUSTIC_LIMIT_THRESHOLD_SET |
+					    OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_RETRIEVE |
+					    OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET;
 }
 
 static int smu_v13_0_7_set_default_od_settings(struct smu_context *smu)
@@ -1961,6 +2008,8 @@ static int smu_v13_0_7_set_default_od_settings(struct smu_context *smu)
 		}
 		user_od_table->OverDriveTable.AcousticLimitRpmThreshold =
 			user_od_table_bak.OverDriveTable.AcousticLimitRpmThreshold;
+		user_od_table->OverDriveTable.AcousticTargetRpmThreshold =
+			user_od_table_bak.OverDriveTable.AcousticTargetRpmThreshold;
 	}
 
 	smu_v13_0_7_set_supported_od_feature_mask(smu);
-- 
2.34.1



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