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| author | Christian König <christian.koenig@amd.com> | 2017-09-08 14:09:41 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-09-12 14:30:39 -0400 |
| commit | d5884513a31df072879c89c80306d544467ee770 (patch) | |
| tree | 599d8ad641fa0824f4854eb410469abaedf9a0d2 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | 50811c71fa1b7c2f8b422ad532d75a6860f15a8b (diff) | |
| download | lwn-d5884513a31df072879c89c80306d544467ee770.tar.gz lwn-d5884513a31df072879c89c80306d544467ee770.zip | |
drm/amdgpu: fix VM sync with always valid BOs v2
All users of a VM must always wait for updates with always
valid BOs to be completed.
v2: remove debugging leftovers, rename struct member
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Roger He <Hongbo.He@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 758bbb9e77f3..64baa3138965 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -1141,9 +1141,8 @@ static int amdgpu_vm_update_level(struct amdgpu_device *adev, goto error_free; amdgpu_bo_fence(parent->base.bo, fence, true); - dma_fence_put(vm->last_dir_update); - vm->last_dir_update = dma_fence_get(fence); - dma_fence_put(fence); + dma_fence_put(vm->last_update); + vm->last_update = fence; } } @@ -1804,6 +1803,12 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev, trace_amdgpu_vm_bo_mapping(mapping); } + if (bo_va->base.bo && + bo_va->base.bo->tbo.resv == vm->root.base.bo->tbo.resv) { + dma_fence_put(vm->last_update); + vm->last_update = dma_fence_get(bo_va->last_pt_update); + } + return 0; } @@ -2587,7 +2592,7 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm, vm->use_cpu_for_update ? "CPU" : "SDMA"); WARN_ONCE((vm->use_cpu_for_update & !amdgpu_vm_is_large_bar(adev)), "CPU update of VM recommended only for large BAR system\n"); - vm->last_dir_update = NULL; + vm->last_update = NULL; flags = AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS | AMDGPU_GEM_CREATE_VRAM_CLEARED; @@ -2693,7 +2698,7 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm) } amdgpu_vm_free_levels(&vm->root); - dma_fence_put(vm->last_dir_update); + dma_fence_put(vm->last_update); for (i = 0; i < AMDGPU_MAX_VMHUBS; i++) amdgpu_vm_free_reserved_vmid(adev, vm, i); } |