[V3 7/7] drm/amd/pm: add fan minimum pwm OD setting support for SMU13
Evan Quan
evan.quan at amd.com
Wed Aug 30 05:56:48 UTC 2023
Add SMU13 fan minimum pwm 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 | 64 +++++++++++++++++++
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, 177 insertions(+), 2 deletions(-)
diff --git a/Documentation/gpu/amdgpu/thermal.rst b/Documentation/gpu/amdgpu/thermal.rst
index aa2d15706cda..2f6166f81e6a 100644
--- a/Documentation/gpu/amdgpu/thermal.rst
+++ b/Documentation/gpu/amdgpu/thermal.rst
@@ -88,6 +88,12 @@ fan_target_temperature
.. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
:doc: fan_target_temperature
+fan_minimum_pwm
+---------------
+
+.. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c
+ :doc: fan_minimum_pwm
+
GFXOFF
======
diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
index 0501d174dbd8..5a889f733462 100644
--- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
@@ -117,6 +117,7 @@ enum pp_clock_type {
OD_ACOUSTIC_LIMIT,
OD_ACOUSTIC_TARGET,
OD_FAN_TARGET_TEMPERATURE,
+ OD_FAN_MINIMUM_PWM,
};
enum amd_pp_sensors {
@@ -195,6 +196,7 @@ enum PP_OD_DPM_TABLE_COMMAND {
PP_OD_EDIT_ACOUSTIC_LIMIT,
PP_OD_EDIT_ACOUSTIC_TARGET,
PP_OD_EDIT_FAN_TARGET_TEMPERATURE,
+ PP_OD_EDIT_FAN_MINIMUM_PWM,
};
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 060a38e30878..84e1af6a6ce7 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -3745,6 +3745,62 @@ static umode_t fan_target_temperature_visible(struct amdgpu_device *adev)
return umode;
}
+/**
+ * DOC: fan_minimum_pwm
+ *
+ * The amdgpu driver provides a sysfs API for checking and adjusting the
+ * minimum fan speed in PWM.
+ *
+ * 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 minimum fan speed in PWM the fan should spin. Setting
+ * via this interface will switch the fan control to auto mode implicitly.
+ */
+static ssize_t fan_minimum_pwm_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_FAN_MINIMUM_PWM, buf);
+}
+
+static ssize_t fan_minimum_pwm_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_FAN_MINIMUM_PWM,
+ buf,
+ count);
+}
+
+static umode_t fan_minimum_pwm_visible(struct amdgpu_device *adev)
+{
+ umode_t umode = 0000;
+
+ if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_FAN_MINIMUM_PWM_RETRIEVE)
+ umode |= S_IRUSR | S_IRGRP | S_IROTH;
+
+ if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_FAN_MINIMUM_PWM_SET)
+ umode |= S_IWUSR;
+
+ return umode;
+}
+
static struct od_feature_set amdgpu_od_set = {
.containers = {
[0] = {
@@ -3782,6 +3838,14 @@ static struct od_feature_set amdgpu_od_set = {
.store = fan_target_temperature_store,
},
},
+ [4] = {
+ .name = "fan_minimum_pwm",
+ .ops = {
+ .is_visible = fan_minimum_pwm_visible,
+ .show = fan_minimum_pwm_show,
+ .store = fan_minimum_pwm_store,
+ },
+ },
},
},
},
diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
index 486036632ab7..5efdba6e358f 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
@@ -322,6 +322,8 @@ struct config_table_setting
#define OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET BIT(5)
#define OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_RETRIEVE BIT(6)
#define OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET BIT(7)
+#define OD_OPS_SUPPORT_FAN_MINIMUM_PWM_RETRIEVE BIT(8)
+#define OD_OPS_SUPPORT_FAN_MINIMUM_PWM_SET BIT(9)
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 60feffd8b221..206e233826b5 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -2489,6 +2489,8 @@ static enum smu_clk_type smu_convert_to_smuclk(enum pp_clock_type type)
clk_type = SMU_OD_ACOUSTIC_TARGET; break;
case OD_FAN_TARGET_TEMPERATURE:
clk_type = SMU_OD_FAN_TARGET_TEMPERATURE; break;
+ case OD_FAN_MINIMUM_PWM:
+ clk_type = SMU_OD_FAN_MINIMUM_PWM; 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 5a129e7162a9..ebc789e7a289 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h
+++ b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h
@@ -284,6 +284,7 @@ enum smu_clk_type {
SMU_OD_ACOUSTIC_LIMIT,
SMU_OD_ACOUSTIC_TARGET,
SMU_OD_FAN_TARGET_TEMPERATURE,
+ SMU_OD_FAN_MINIMUM_PWM,
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 328d377dde79..093962a37688 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
@@ -106,6 +106,7 @@
#define PP_OD_FEATURE_FAN_ACOUSTIC_LIMIT 7
#define PP_OD_FEATURE_FAN_ACOUSTIC_TARGET 8
#define PP_OD_FEATURE_FAN_TARGET_TEMPERATURE 9
+#define PP_OD_FEATURE_FAN_MINIMUM_PWM 10
#define LINK_SPEED_MAX 3
@@ -1135,6 +1136,10 @@ static void smu_v13_0_0_get_od_setting_limits(struct smu_context *smu,
od_min_setting = overdrive_lowerlimits->FanTargetTemperature;
od_max_setting = overdrive_upperlimits->FanTargetTemperature;
break;
+ case PP_OD_FEATURE_FAN_MINIMUM_PWM:
+ od_min_setting = overdrive_lowerlimits->FanMinimumPwm;
+ od_max_setting = overdrive_upperlimits->FanMinimumPwm;
+ break;
default:
od_min_setting = od_max_setting = INT_MAX;
break;
@@ -1437,6 +1442,24 @@ static int smu_v13_0_0_print_clk_levels(struct smu_context *smu,
min_value, max_value);
break;
+ case SMU_OD_FAN_MINIMUM_PWM:
+ if (!smu_v13_0_0_is_od_feature_supported(smu,
+ PP_OD_FEATURE_FAN_CURVE_BIT))
+ break;
+
+ size += sysfs_emit_at(buf, size, "FAN_MINIMUM_PWM:\n");
+ size += sysfs_emit_at(buf, size, "%d\n",
+ (int)od_table->OverDriveTable.FanMinimumPwm);
+
+ size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE");
+ smu_v13_0_0_get_od_setting_limits(smu,
+ PP_OD_FEATURE_FAN_MINIMUM_PWM,
+ &min_value,
+ &max_value);
+ size += sysfs_emit_at(buf, size, "MINIMUM_PWM: %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) &&
@@ -1751,6 +1774,28 @@ 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_FAN_MINIMUM_PWM:
+ 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_MINIMUM_PWM,
+ &minimum,
+ &maximum);
+ if (input[0] < minimum ||
+ input[0] > maximum) {
+ dev_info(adev->dev, "fan minimum pwm setting(%ld) must be within [%d, %d]!\n",
+ input[0], minimum, maximum);
+ return -EINVAL;
+ }
+
+ od_table->OverDriveTable.FanMinimumPwm = 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,
@@ -2014,7 +2059,9 @@ static void smu_v13_0_0_set_supported_od_feature_mask(struct smu_context *smu)
OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_RETRIEVE |
OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET |
OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_RETRIEVE |
- OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET;
+ OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET |
+ OD_OPS_SUPPORT_FAN_MINIMUM_PWM_RETRIEVE |
+ OD_OPS_SUPPORT_FAN_MINIMUM_PWM_SET;
}
static int smu_v13_0_0_set_default_od_settings(struct smu_context *smu)
@@ -2078,6 +2125,8 @@ static int smu_v13_0_0_set_default_od_settings(struct smu_context *smu)
user_od_table_bak.OverDriveTable.AcousticTargetRpmThreshold;
user_od_table->OverDriveTable.FanTargetTemperature =
user_od_table_bak.OverDriveTable.FanTargetTemperature;
+ user_od_table->OverDriveTable.FanMinimumPwm =
+ user_od_table_bak.OverDriveTable.FanMinimumPwm;
}
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 0f945a86b475..430ad1b05ba3 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
@@ -82,6 +82,7 @@
#define PP_OD_FEATURE_FAN_ACOUSTIC_LIMIT 7
#define PP_OD_FEATURE_FAN_ACOUSTIC_TARGET 8
#define PP_OD_FEATURE_FAN_TARGET_TEMPERATURE 9
+#define PP_OD_FEATURE_FAN_MINIMUM_PWM 10
#define LINK_SPEED_MAX 3
@@ -1121,6 +1122,10 @@ static void smu_v13_0_7_get_od_setting_limits(struct smu_context *smu,
od_min_setting = overdrive_lowerlimits->FanTargetTemperature;
od_max_setting = overdrive_upperlimits->FanTargetTemperature;
break;
+ case PP_OD_FEATURE_FAN_MINIMUM_PWM:
+ od_min_setting = overdrive_lowerlimits->FanMinimumPwm;
+ od_max_setting = overdrive_upperlimits->FanMinimumPwm;
+ break;
default:
od_min_setting = od_max_setting = INT_MAX;
break;
@@ -1423,6 +1428,24 @@ static int smu_v13_0_7_print_clk_levels(struct smu_context *smu,
min_value, max_value);
break;
+ case SMU_OD_FAN_MINIMUM_PWM:
+ if (!smu_v13_0_7_is_od_feature_supported(smu,
+ PP_OD_FEATURE_FAN_CURVE_BIT))
+ break;
+
+ size += sysfs_emit_at(buf, size, "FAN_MINIMUM_PWM:\n");
+ size += sysfs_emit_at(buf, size, "%d\n",
+ (int)od_table->OverDriveTable.FanMinimumPwm);
+
+ size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE");
+ smu_v13_0_7_get_od_setting_limits(smu,
+ PP_OD_FEATURE_FAN_MINIMUM_PWM,
+ &min_value,
+ &max_value);
+ size += sysfs_emit_at(buf, size, "MINIMUM_PWM: %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) &&
@@ -1737,6 +1760,28 @@ 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_FAN_MINIMUM_PWM:
+ 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_MINIMUM_PWM,
+ &minimum,
+ &maximum);
+ if (input[0] < minimum ||
+ input[0] > maximum) {
+ dev_info(adev->dev, "fan minimum pwm setting(%ld) must be within [%d, %d]!\n",
+ input[0], minimum, maximum);
+ return -EINVAL;
+ }
+
+ od_table->OverDriveTable.FanMinimumPwm = 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,
@@ -1995,7 +2040,9 @@ static void smu_v13_0_7_set_supported_od_feature_mask(struct smu_context *smu)
OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_RETRIEVE |
OD_OPS_SUPPORT_ACOUSTIC_TARGET_THRESHOLD_SET |
OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_RETRIEVE |
- OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET;
+ OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET |
+ OD_OPS_SUPPORT_FAN_MINIMUM_PWM_RETRIEVE |
+ OD_OPS_SUPPORT_FAN_MINIMUM_PWM_SET;
}
static int smu_v13_0_7_set_default_od_settings(struct smu_context *smu)
@@ -2059,6 +2106,8 @@ static int smu_v13_0_7_set_default_od_settings(struct smu_context *smu)
user_od_table_bak.OverDriveTable.AcousticTargetRpmThreshold;
user_od_table->OverDriveTable.FanTargetTemperature =
user_od_table_bak.OverDriveTable.FanTargetTemperature;
+ user_od_table->OverDriveTable.FanMinimumPwm =
+ user_od_table_bak.OverDriveTable.FanMinimumPwm;
}
smu_v13_0_7_set_supported_od_feature_mask(smu);
--
2.34.1
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