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| author | Felix Kuehling <Felix.Kuehling@amd.com> | 2018-02-06 20:32:35 -0500 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2018-02-06 20:32:35 -0500 |
| commit | d8d019ccffb838bb0dd98e583b5c25ccc0bc6ece (patch) | |
| tree | 660d1ea42b915579fc4b12ad717bcbcaf49254f6 /drivers/gpu/drm/amd/amdgpu/amdgpu_sync.h | |
| parent | 1029a3f33678afb8978285209ec5cfe153fe44ef (diff) | |
drm/amdgpu: Add KFD eviction fence
This fence is used by KFD to keep memory resident while user mode
queues are enabled. Trying to evict memory will trigger the
enable_signaling callback, which starts a KFD eviction, which
involves preempting user mode queues before signaling the fence.
There is one such fence per process.
v2:
* Grab a reference to mm_struct
* Dereference fence after NULL check
* Simplify fence release, no need to signal without anyone waiting
* Added signed-off-by Harish, who is the original author of this code
v3:
* update MAINTAINERS file
* change amd_kfd_ prefix to amdkfd_
* remove useless initialization of variable to NULL
v4:
* set amdkfd_fence_ops to be static
* Suggested by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_sync.h')
0 files changed, 0 insertions, 0 deletions