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drm/amdgpu: add new INFO IOCTL query for input power

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Some chips provide both average and input power.  Previously
we just exposed average power, add a new query for input
power.

Example userspace:
https://github.com/Umio-Yasuno/libdrm-amdgpu-sys-rs/tree/input_power

Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2023-10-02 14:33:15 -04:00
parent d4b9cfe2c7
commit d3f452f3a0
2 changed files with 11 additions and 0 deletions
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9
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
View file

@ -1114,6 +1114,15 @@ int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
}
ui32 >>= 8;
break;
case AMDGPU_INFO_SENSOR_GPU_INPUT_POWER:
/* get input GPU power */
if (amdgpu_dpm_read_sensor(adev,
AMDGPU_PP_SENSOR_GPU_INPUT_POWER,
(void *)&ui32, &ui32_size)) {
return -EINVAL;
}
ui32 >>= 8;
break;
case AMDGPU_INFO_SENSOR_VDDNB:
/* get VDDNB in millivolts */
if (amdgpu_dpm_read_sensor(adev,

2
include/uapi/drm/amdgpu_drm.h
View file

@ -865,6 +865,8 @@ struct drm_amdgpu_cs_chunk_cp_gfx_shadow {
#define AMDGPU_INFO_SENSOR_PEAK_PSTATE_GFX_SCLK 0xa
/* Subquery id: Query GPU peak pstate memory clock */
#define AMDGPU_INFO_SENSOR_PEAK_PSTATE_GFX_MCLK 0xb
/* Subquery id: Query input GPU power */
#define AMDGPU_INFO_SENSOR_GPU_INPUT_POWER 0xc
/* Number of VRAM page faults on CPU access. */
#define AMDGPU_INFO_NUM_VRAM_CPU_PAGE_FAULTS 0x1E
#define AMDGPU_INFO_VRAM_LOST_COUNTER 0x1F