diff options
| author | Christian König <christian.koenig@amd.com> | 2024-01-18 13:28:55 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-06-19 12:48:00 -0400 |
| commit | a6328c9c3df355daec1935f672e8ec9d9d391b43 (patch) | |
| tree | 3f4e03f33d895f801d0d7ebdbdf9359d1e1998f9 /drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | |
| parent | b32563859d6f61265222ec0f27d394964a8f7669 (diff) | |
drm/amdgpu: fix using the reserved VMID with gang submit
We need to ensure that even when using a reserved VMID that the gang
members can still run in parallel.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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; |