diff options
author | Christian König <christian.koenig@amd.com> | 2023-04-19 16:17:57 +0300 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-15 18:37:55 +0300 |
commit | f88e295e9094deee93066f32a4380307e8cb3dd9 (patch) | |
tree | 0bf57795436d6a26eacedf3b91f7245b8f53a95f /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | |
parent | 55bf196f60dfc89488c5645d112a9176c6fe4708 (diff) | |
download | linux-f88e295e9094deee93066f32a4380307e8cb3dd9.tar.xz |
drm/amdgpu: add VM generation token
Instead of using the VRAM lost counter add a 64bit token which indicates
if a context or job is still valid to use.
Should the VRAM be lost or the page tables need re-creation the token will
change indicating that userspace needs to act and re-create the contexts
and re-submit the work.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index 14f9a2bf3acb..9c85d494f2a2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -295,6 +295,9 @@ struct amdgpu_vm { atomic64_t tlb_seq; struct dma_fence *last_tlb_flush; + /* How many times we had to re-generate the page tables */ + uint64_t generation; + /* Last unlocked submission to the scheduler entities */ struct dma_fence *last_unlocked; @@ -397,6 +400,7 @@ void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm, struct list_head *validated, struct amdgpu_bo_list_entry *entry); bool amdgpu_vm_ready(struct amdgpu_vm *vm); +uint64_t amdgpu_vm_generation(struct amdgpu_device *adev, struct amdgpu_vm *vm); int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm, int (*callback)(void *p, struct amdgpu_bo *bo), void *param); |