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| author | Alex Deucher <alexander.deucher@amd.com> | 2020-01-10 15:58:52 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-01-14 10:20:34 -0500 |
| commit | a9ffe2a9833835b157a53dcc4d725f71426f55ff (patch) | |
| tree | d08ccdf38871f4d778f3c6e49fa2aa8070e75cac /drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | |
| parent | b9a9294b91efd4388db415d657626c1431316379 (diff) | |
| download | linux-a9ffe2a9833835b157a53dcc4d725f71426f55ff.tar.bz2 | |
drm/amdgpu/debugfs: properly handle runtime pm
If driver debugfs files are accessed, power up the GPU
when necessary.
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c index e9efee04ca23..3c01252b1e0e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c @@ -741,10 +741,18 @@ static int amdgpu_debugfs_gpu_recover(struct seq_file *m, void *data) struct drm_info_node *node = (struct drm_info_node *) m->private; struct drm_device *dev = node->minor->dev; struct amdgpu_device *adev = dev->dev_private; + int r; + + r = pm_runtime_get_sync(dev->dev); + if (r < 0) + return 0; seq_printf(m, "gpu recover\n"); amdgpu_device_gpu_recover(adev, NULL); + pm_runtime_mark_last_busy(dev->dev); + pm_runtime_put_autosuspend(dev->dev); + return 0; } |