Whilst we have support for setting fan curves there is no support for disabling the zero RPM feature. Since the relevant bits are already present in the OverDriveTable, hook them up to a sysctl setting so users can influence this behaviour. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3489 Signed-off-by: Wolfgang Müller <wolf@oriole.systems> --- Documentation/gpu/amdgpu/thermal.rst | 6 ++ .../gpu/drm/amd/include/kgd_pp_interface.h | 2 + drivers/gpu/drm/amd/pm/amdgpu_pm.c | 62 +++++++++++++++++++ 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 | 55 +++++++++++++++- .../drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c | 55 +++++++++++++++- 8 files changed, 183 insertions(+), 2 deletions(-) diff --git a/Documentation/gpu/amdgpu/thermal.rst b/Documentation/gpu/amdgpu/thermal.rst index 6d942b5c5..ec6c1f1d5 100644 --- a/Documentation/gpu/amdgpu/thermal.rst +++ b/Documentation/gpu/amdgpu/thermal.rst @@ -100,6 +100,12 @@ fan_minimum_pwm .. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c :doc: fan_minimum_pwm +fan_zero_rpm_enable +---------------------- + +.. kernel-doc:: drivers/gpu/drm/amd/pm/amdgpu_pm.c + :doc: fan_zero_rpm_enable + GFXOFF ====== diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h b/drivers/gpu/drm/amd/include/kgd_pp_interface.h index 2fa71f682..80e4b5a7d 100644 --- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h +++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h @@ -119,6 +119,7 @@ enum pp_clock_type { OD_ACOUSTIC_TARGET, OD_FAN_TARGET_TEMPERATURE, OD_FAN_MINIMUM_PWM, + OD_FAN_ZERO_RPM_ENABLE, }; enum amd_pp_sensors { @@ -199,6 +200,7 @@ enum PP_OD_DPM_TABLE_COMMAND { PP_OD_EDIT_ACOUSTIC_TARGET, PP_OD_EDIT_FAN_TARGET_TEMPERATURE, PP_OD_EDIT_FAN_MINIMUM_PWM, + PP_OD_EDIT_FAN_ZERO_RPM_ENABLE, }; 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 ea9407733..cb96f1f8c 100644 --- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c @@ -4109,6 +4109,60 @@ static umode_t fan_minimum_pwm_visible(struct amdgpu_device *adev) return umode; } +/** + * DOC: fan_zero_rpm_enable + * + * The amdgpu driver provides a sysfs API for checking and adjusting the + * zero RPM feature. + * + * 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. + * + * If you want to reset to the default value, write "r" (reset) to the file to + * reset them. + */ +static ssize_t fan_zero_rpm_enable_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_ZERO_RPM_ENABLE, buf); +} + +static ssize_t fan_zero_rpm_enable_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_ZERO_RPM_ENABLE, + buf, + count); +} + +static umode_t fan_zero_rpm_enable_visible(struct amdgpu_device *adev) +{ + umode_t umode = 0000; + + if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_FAN_ZERO_RPM_ENABLE_RETRIEVE) + umode |= S_IRUSR | S_IRGRP | S_IROTH; + + if (adev->pm.od_feature_mask & OD_OPS_SUPPORT_FAN_ZERO_RPM_ENABLE_SET) + umode |= S_IWUSR; + + return umode; +} + static struct od_feature_set amdgpu_od_set = { .containers = { [0] = { @@ -4154,6 +4208,14 @@ static struct od_feature_set amdgpu_od_set = { .store = fan_minimum_pwm_store, }, }, + [5] = { + .name = "fan_zero_rpm_enable", + .ops = { + .is_visible = fan_zero_rpm_enable_visible, + .show = fan_zero_rpm_enable_show, + .store = fan_zero_rpm_enable_store, + }, + }, }, }, }, diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h index f5bf41f21..b5daa12c0 100644 --- a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h +++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h @@ -328,6 +328,8 @@ struct config_table_setting #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) +#define OD_OPS_SUPPORT_FAN_ZERO_RPM_ENABLE_RETRIEVE BIT(10) +#define OD_OPS_SUPPORT_FAN_ZERO_RPM_ENABLE_SET BIT(11) 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 accc96a03..8d3f3e735 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -2874,6 +2874,8 @@ static enum smu_clk_type smu_convert_to_smuclk(enum pp_clock_type type) clk_type = SMU_OD_FAN_TARGET_TEMPERATURE; break; case OD_FAN_MINIMUM_PWM: clk_type = SMU_OD_FAN_MINIMUM_PWM; break; + case OD_FAN_ZERO_RPM_ENABLE: + clk_type = SMU_OD_FAN_ZERO_RPM_ENABLE; 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 e71a721c1..e0abb449a 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h +++ b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h @@ -313,6 +313,7 @@ enum smu_clk_type { SMU_OD_ACOUSTIC_TARGET, SMU_OD_FAN_TARGET_TEMPERATURE, SMU_OD_FAN_MINIMUM_PWM, + SMU_OD_FAN_ZERO_RPM_ENABLE, 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 3e2277abc..0d9a4638e 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 @@ -107,6 +107,7 @@ #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 PP_OD_FEATURE_FAN_ZERO_RPM_ENABLE 11 #define LINK_SPEED_MAX 3 @@ -1130,6 +1131,10 @@ static void smu_v13_0_0_get_od_setting_limits(struct smu_context *smu, od_min_setting = overdrive_lowerlimits->FanMinimumPwm; od_max_setting = overdrive_upperlimits->FanMinimumPwm; break; + case PP_OD_FEATURE_FAN_ZERO_RPM_ENABLE: + od_min_setting = overdrive_lowerlimits->FanZeroRpmEnable; + od_max_setting = overdrive_upperlimits->FanZeroRpmEnable; + break; default: od_min_setting = od_max_setting = INT_MAX; break; @@ -1450,6 +1455,24 @@ static int smu_v13_0_0_print_clk_levels(struct smu_context *smu, min_value, max_value); break; + case SMU_OD_FAN_ZERO_RPM_ENABLE: + if (!smu_v13_0_0_is_od_feature_supported(smu, + PP_OD_FEATURE_ZERO_FAN_BIT)) + break; + + size += sysfs_emit_at(buf, size, "FAN_ZERO_RPM_ENABLE:\n"); + size += sysfs_emit_at(buf, size, "%d\n", + (int)od_table->OverDriveTable.FanZeroRpmEnable); + + size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE"); + smu_v13_0_0_get_od_setting_limits(smu, + PP_OD_FEATURE_FAN_ZERO_RPM_ENABLE, + &min_value, + &max_value); + size += sysfs_emit_at(buf, size, "ZERO_RPM_ENABLE: %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) && @@ -1547,6 +1570,11 @@ static int smu_v13_0_0_od_restore_table_single(struct smu_context *smu, long inp od_table->OverDriveTable.FanMode = FAN_MODE_AUTO; od_table->OverDriveTable.FeatureCtrlMask |= BIT(PP_OD_FEATURE_FAN_CURVE_BIT); break; + case PP_OD_EDIT_FAN_ZERO_RPM_ENABLE: + od_table->OverDriveTable.FanZeroRpmEnable = + boot_overdrive_table->OverDriveTable.FanZeroRpmEnable; + od_table->OverDriveTable.FeatureCtrlMask |= BIT(PP_OD_FEATURE_ZERO_FAN_BIT); + break; default: dev_info(adev->dev, "Invalid table index: %ld\n", input); return -EINVAL; @@ -1840,6 +1868,27 @@ 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_ZERO_RPM_ENABLE: + if (!smu_v13_0_0_is_od_feature_supported(smu, PP_OD_FEATURE_ZERO_FAN_BIT)) { + dev_warn(adev->dev, "Zero RPM setting not supported!\n"); + return -ENOTSUPP; + } + + smu_v13_0_0_get_od_setting_limits(smu, + PP_OD_FEATURE_FAN_ZERO_RPM_ENABLE, + &minimum, + &maximum); + if (input[0] < minimum || + input[0] > maximum) { + dev_info(adev->dev, "zero RPM enable setting(%ld) must be within [%d, %d]!\n", + input[0], minimum, maximum); + return -EINVAL; + } + + od_table->OverDriveTable.FanZeroRpmEnable = input[0]; + od_table->OverDriveTable.FeatureCtrlMask |= BIT(PP_OD_FEATURE_ZERO_FAN_BIT); + break; + case PP_OD_RESTORE_DEFAULT_TABLE: if (size == 1) { ret = smu_v13_0_0_od_restore_table_single(smu, input[0]); @@ -2110,7 +2159,9 @@ static void smu_v13_0_0_set_supported_od_feature_mask(struct smu_context *smu) OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_RETRIEVE | OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET | OD_OPS_SUPPORT_FAN_MINIMUM_PWM_RETRIEVE | - OD_OPS_SUPPORT_FAN_MINIMUM_PWM_SET; + OD_OPS_SUPPORT_FAN_MINIMUM_PWM_SET | + OD_OPS_SUPPORT_FAN_ZERO_RPM_ENABLE_RETRIEVE | + OD_OPS_SUPPORT_FAN_ZERO_RPM_ENABLE_SET; } static int smu_v13_0_0_set_default_od_settings(struct smu_context *smu) @@ -2176,6 +2227,8 @@ static int smu_v13_0_0_set_default_od_settings(struct smu_context *smu) user_od_table_bak.OverDriveTable.FanTargetTemperature; user_od_table->OverDriveTable.FanMinimumPwm = user_od_table_bak.OverDriveTable.FanMinimumPwm; + user_od_table->OverDriveTable.FanZeroRpmEnable = + user_od_table_bak.OverDriveTable.FanZeroRpmEnable; } 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 23f133884..6b61655f9 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 @@ -83,6 +83,7 @@ #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 PP_OD_FEATURE_FAN_ZERO_RPM_ENABLE 11 #define LINK_SPEED_MAX 3 @@ -1119,6 +1120,10 @@ static void smu_v13_0_7_get_od_setting_limits(struct smu_context *smu, od_min_setting = overdrive_lowerlimits->FanMinimumPwm; od_max_setting = overdrive_upperlimits->FanMinimumPwm; break; + case PP_OD_FEATURE_FAN_ZERO_RPM_ENABLE: + od_min_setting = overdrive_lowerlimits->FanZeroRpmEnable; + od_max_setting = overdrive_upperlimits->FanZeroRpmEnable; + break; default: od_min_setting = od_max_setting = INT_MAX; break; @@ -1439,6 +1444,24 @@ static int smu_v13_0_7_print_clk_levels(struct smu_context *smu, min_value, max_value); break; + case SMU_OD_FAN_ZERO_RPM_ENABLE: + if (!smu_v13_0_7_is_od_feature_supported(smu, + PP_OD_FEATURE_ZERO_FAN_BIT)) + break; + + size += sysfs_emit_at(buf, size, "FAN_ZERO_RPM_ENABLE:\n"); + size += sysfs_emit_at(buf, size, "%d\n", + (int)od_table->OverDriveTable.FanZeroRpmEnable); + + size += sysfs_emit_at(buf, size, "%s:\n", "OD_RANGE"); + smu_v13_0_7_get_od_setting_limits(smu, + PP_OD_FEATURE_FAN_ZERO_RPM_ENABLE, + &min_value, + &max_value); + size += sysfs_emit_at(buf, size, "ZERO_RPM_ENABLE: %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) && @@ -1535,6 +1558,11 @@ static int smu_v13_0_7_od_restore_table_single(struct smu_context *smu, long inp od_table->OverDriveTable.FanMode = FAN_MODE_AUTO; od_table->OverDriveTable.FeatureCtrlMask |= BIT(PP_OD_FEATURE_FAN_CURVE_BIT); break; + case PP_OD_EDIT_FAN_ZERO_RPM_ENABLE: + od_table->OverDriveTable.FanZeroRpmEnable = + boot_overdrive_table->OverDriveTable.FanZeroRpmEnable; + od_table->OverDriveTable.FeatureCtrlMask |= BIT(PP_OD_FEATURE_ZERO_FAN_BIT); + break; default: dev_info(adev->dev, "Invalid table index: %ld\n", input); return -EINVAL; @@ -1828,6 +1856,27 @@ 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_ZERO_RPM_ENABLE: + if (!smu_v13_0_7_is_od_feature_supported(smu, PP_OD_FEATURE_ZERO_FAN_BIT)) { + dev_warn(adev->dev, "Zero RPM setting not supported!\n"); + return -ENOTSUPP; + } + + smu_v13_0_7_get_od_setting_limits(smu, + PP_OD_FEATURE_FAN_ZERO_RPM_ENABLE, + &minimum, + &maximum); + if (input[0] < minimum || + input[0] > maximum) { + dev_info(adev->dev, "zero RPM enable setting(%ld) must be within [%d, %d]!\n", + input[0], minimum, maximum); + return -EINVAL; + } + + od_table->OverDriveTable.FanZeroRpmEnable = input[0]; + od_table->OverDriveTable.FeatureCtrlMask |= BIT(PP_OD_FEATURE_ZERO_FAN_BIT); + break; + case PP_OD_RESTORE_DEFAULT_TABLE: if (size == 1) { ret = smu_v13_0_7_od_restore_table_single(smu, input[0]); @@ -2094,7 +2143,9 @@ static void smu_v13_0_7_set_supported_od_feature_mask(struct smu_context *smu) OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_RETRIEVE | OD_OPS_SUPPORT_FAN_TARGET_TEMPERATURE_SET | OD_OPS_SUPPORT_FAN_MINIMUM_PWM_RETRIEVE | - OD_OPS_SUPPORT_FAN_MINIMUM_PWM_SET; + OD_OPS_SUPPORT_FAN_MINIMUM_PWM_SET | + OD_OPS_SUPPORT_FAN_ZERO_RPM_ENABLE_RETRIEVE | + OD_OPS_SUPPORT_FAN_ZERO_RPM_ENABLE_SET; } static int smu_v13_0_7_set_default_od_settings(struct smu_context *smu) @@ -2160,6 +2211,8 @@ static int smu_v13_0_7_set_default_od_settings(struct smu_context *smu) user_od_table_bak.OverDriveTable.FanTargetTemperature; user_od_table->OverDriveTable.FanMinimumPwm = user_od_table_bak.OverDriveTable.FanMinimumPwm; + user_od_table->OverDriveTable.FanZeroRpmEnable = + user_od_table_bak.OverDriveTable.FanZeroRpmEnable; } smu_v13_0_7_set_supported_od_feature_mask(smu); -- 2.47.0
