6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Alex Deucher <alexander.deucher@xxxxxxx>
[ Upstream commit d02069850fc102b07ae923535d5e212f2c8a34e9 ]
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
Reviewed-by: Yang Wang <kevinyang.wang@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 d30dc0b718c7..58dab4f73a9a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -1026,7 +1026,12 @@ 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;
+ /* 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;
--
2.43.0
