diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-07-10 00:32:50 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2015-08-17 23:51:13 +0300 |
| commit | 5516ab86a873efc78fc356b0979294203f1cffb0 (patch) | |
| tree | 21beab5c8a1ed7b06a749b363e1dfffe1fa2828e /drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | |
| parent | db4448f78d5982997751120ca358c97a7f96e122 (diff) | |
| download | linux-5516ab86a873efc78fc356b0979294203f1cffb0.tar.xz | |
drm/amdgpu: don't grab dev->struct_mutex in pm functions
Similar to radeon, except that amdgpu doesn't even use struct_mutex to
protect anything like the shared z buffer (sane gpu architecture,
yay!). And the code already grabs the globa adev->ring_lock, so this
code can't race with itself. Which makes struct_mutex completely
redundnant. Remove it.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c index 25b329f4b2d9..efed11509f4a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c @@ -580,7 +580,6 @@ force: amdgpu_dpm_print_power_state(adev, adev->pm.dpm.requested_ps); } - mutex_lock(&adev->ddev->struct_mutex); mutex_lock(&adev->ring_lock); /* update whether vce is active */ @@ -628,7 +627,6 @@ force: done: mutex_unlock(&adev->ring_lock); - mutex_unlock(&adev->ddev->struct_mutex); } void amdgpu_dpm_enable_uvd(struct amdgpu_device *adev, bool enable) |