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drm/amd/pm: Expose ppt1 limit for gc_v9_5_0

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Expose power2_cap hwmon node for retrieving and configuring ppt1
limit on supported boards for gc_v9_5_0

v2: Remove version check (Lijo)

v3: Remove power2_average (Lijo)

v4: Put back power2_average, will be removed separately (Lijo)

Signed-off-by: Asad Kamal <asad.kamal@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Asad Kamal 2025-10-20 03:26:01 +08:00 committed by Alex Deucher
parent d88edb2460
commit 12c958d1db
2 changed files with 10 additions and 4 deletions
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12
drivers/gpu/drm/amd/pm/amdgpu_pm.c
View File

@ -3372,7 +3372,9 @@ static ssize_t amdgpu_hwmon_show_power_label(struct device *dev,
to_sensor_dev_attr(attr)->index == PP_PWR_TYPE_FAST ?
"fastPPT" : "slowPPT");
else
return sysfs_emit(buf, "PPT\n");
return sysfs_emit(buf, "%s\n",
to_sensor_dev_attr(attr)->index == PP_PWR_TYPE_FAST ?
"PPT1" : "PPT");
}
static ssize_t amdgpu_hwmon_set_power_cap(struct device *dev,
@ -3825,13 +3827,15 @@ static umode_t hwmon_attributes_visible(struct kobject *kobj,
return 0;
/* only Vangogh has fast PPT limit and power labels */
if (!(gc_ver == IP_VERSION(10, 3, 1)) &&
(attr == &sensor_dev_attr_power2_average.dev_attr.attr ||
if ((attr == &sensor_dev_attr_power2_average.dev_attr.attr ||
attr == &sensor_dev_attr_power2_cap_max.dev_attr.attr ||
attr == &sensor_dev_attr_power2_cap_min.dev_attr.attr ||
attr == &sensor_dev_attr_power2_cap.dev_attr.attr ||
attr == &sensor_dev_attr_power2_cap_default.dev_attr.attr ||
attr == &sensor_dev_attr_power2_label.dev_attr.attr))
attr == &sensor_dev_attr_power2_label.dev_attr.attr) &&
(amdgpu_dpm_get_power_limit(adev, &tmp,
PP_PWR_LIMIT_MAX,
PP_PWR_TYPE_FAST) == -EOPNOTSUPP))
return 0;
return effective_mode;

2
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
View File

@ -2941,6 +2941,8 @@ int smu_get_power_limit(void *handle,
if (limit_type != SMU_DEFAULT_PPT_LIMIT) {
if (smu->ppt_funcs->get_ppt_limit)
ret = smu->ppt_funcs->get_ppt_limit(smu, limit, limit_type, limit_level);
else
return -EOPNOTSUPP;
} else {
switch (limit_level) {
case SMU_PPT_LIMIT_CURRENT: