diff options
| author | Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> | 2015-08-14 21:08:40 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2015-08-17 23:51:23 +0300 |
| commit | 05906dec7d7daf197b9b773295c95ad6b9af2a5a (patch) | |
| tree | 3459b59ade856c84a50539a894edc237bf7636da /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | b325a789c7e6554a14fae3c2310ee22fa4ca7cf6 (diff) | |
| download | linux-05906dec7d7daf197b9b773295c95ad6b9af2a5a.tar.xz | |
drm/amdgpu: wait on page directory changes. v2
Pagetables can be moved and therefore the page directory update can be necessary
for the current cs even if none of the the bo's are moved. In that scenario
there is no fence between the sdma0 and gfx ring, so we add one.
v2 (chk): rebased
Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-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 | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 2fc909f5d710..a78a206e176e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -495,7 +495,10 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev, &fence); if (r) goto error_free; + amdgpu_bo_fence(pd, fence, true); + fence_put(vm->page_directory_fence); + vm->page_directory_fence = fence_get(fence); fence_put(fence); } @@ -1291,6 +1294,8 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm) return -ENOMEM; } + vm->page_directory_fence = NULL; + r = amdgpu_bo_create(adev, pd_size, align, true, AMDGPU_GEM_DOMAIN_VRAM, 0, NULL, &vm->page_directory); @@ -1339,6 +1344,7 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm) kfree(vm->page_tables); amdgpu_bo_unref(&vm->page_directory); + fence_put(vm->page_directory_fence); for (i = 0; i < AMDGPU_MAX_RINGS; ++i) { amdgpu_fence_unref(&vm->ids[i].flushed_updates); |