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drm/amdgpu: Add MMU notifier type for KFD userptr

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This commit adds the notion of MMU notifier types GFX and HSA. GFX
continues to work like MMU notifiers did before. HSA adds support for
KFD userptr BOs. The implementation of KFD userptr eviction is a stub
for now.

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>
This commit is contained in:
Felix Kuehling
2018-03-23 15:32:28 -04:00
committed by Oded Gabbay
parent 6d08b06e67
commit e52482dec8
5 changed files with 97 additions and 18 deletions
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7
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
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@@ -1418,6 +1418,13 @@ bo_reserve_failed:
return ret;
}
int amdgpu_amdkfd_evict_userptr(struct kgd_mem *mem,
struct mm_struct *mm)
{
/* TODO */
return 0;
}
/** amdgpu_amdkfd_gpuvm_restore_process_bos - Restore all BOs for the given
* KFD process identified by process_info
*