On 10/2/2023 13:49, Alex Deucher wrote:
For backwards compatibility with userspace.
Fixes: 47f1724db4fe ("drm/amd: Introduce `AMDGPU_PP_SENSOR_GPU_INPUT_POWER`")
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2897
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index 081bd28e2443..ce71f853931a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -1077,7 +1077,12 @@ int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
if (amdgpu_dpm_read_sensor(adev,
AMDGPU_PP_SENSOR_GPU_AVG_POWER,
(void *)&ui32, &ui32_size)) {
- return -EINVAL;
In order to encourage userspace software to move to the new dedicated
IOCTL, what do you think about having a dev_warn_once() here?
+ /* fall back to input power for backwards compat */
+ if (amdgpu_dpm_read_sensor(adev,
+ AMDGPU_PP_SENSOR_GPU_INPUT_POWER,
+ (void *)&ui32, &ui32_size)) {
+ return -EINVAL;
+ }
}
ui32 >>= 8;
break;
