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drm/amdgpu: added a sysfs interface for thermal throttling

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added a sysfs interface for thermal throttling, then userspace
can get/update thermal limit

Signed-off-by: Kun Liu <Kun.Liu2@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Kun Liu
2023-02-21 16:31:18 +08:00
committed by Alex Deucher
parent 4f101d5710
commit c3ed0e72c8
6 changed files with 146 additions and 0 deletions
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2
drivers/gpu/drm/amd/include/kgd_pp_interface.h
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@@ -331,6 +331,8 @@ struct amd_pm_funcs {
int (*get_mclk_od)(void *handle);
int (*set_mclk_od)(void *handle, uint32_t value);
int (*read_sensor)(void *handle, int idx, void *value, int *size);
int (*get_apu_thermal_limit)(void *handle, uint32_t *limit);
int (*set_apu_thermal_limit)(void *handle, uint32_t limit);
enum amd_dpm_forced_level (*get_performance_level)(void *handle);
enum amd_pm_state_type (*get_current_power_state)(void *handle);
int (*get_fan_speed_rpm)(void *handle, uint32_t *rpm);