diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 3fb02f5b91c9..2de36883fc9f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -6523,6 +6523,22 @@ void amdgpu_device_pcie_port_wreg(struct amdgpu_device *adev, } /** + * amdgpu_device_get_gang - return a reference to the current gang + * @adev: amdgpu_device pointer + * + * Returns: A new reference to the current gang leader. + */ +struct dma_fence *amdgpu_device_get_gang(struct amdgpu_device *adev) +{ + struct dma_fence *fence; + + rcu_read_lock(); + fence = dma_fence_get_rcu_safe(&adev->gang_submit); + rcu_read_unlock(); + return fence; +} + +/** * amdgpu_device_switch_gang - switch to a new gang * @adev: amdgpu_device pointer * @gang: the gang to switch to @@ -6538,10 +6554,7 @@ struct dma_fence *amdgpu_device_switch_gang(struct amdgpu_device *adev, do { dma_fence_put(old); - rcu_read_lock(); - old = dma_fence_get_rcu_safe(&adev->gang_submit); - rcu_read_unlock(); - + old = amdgpu_device_get_gang(adev); if (old == gang) break; |