diff options
| author | Christian König <christian.koenig@amd.com> | 2019-07-19 14:41:12 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-09-16 10:42:55 -0500 |
| commit | a2cf324785a6dea0a221f5cdfb945b59d2153eeb (patch) | |
| tree | ac2fb9c611d43071a020b02629217f35a030b602 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | |
| parent | 3084cf46cf8110826a42de8c8ef30e8fa48974c2 (diff) | |
| download | lwn-a2cf324785a6dea0a221f5cdfb945b59d2153eeb.tar.gz lwn-a2cf324785a6dea0a221f5cdfb945b59d2153eeb.zip | |
drm/amdgpu: split the VM entity into direct and delayed
For page fault handling we need to use a direct update which can't be
blocked by ongoing user CS.
Signed-off-by: Christian König <christian.koenig@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 | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 17aca26ebf88..a8e9ea0ca7e8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -2671,12 +2671,17 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm, spin_lock_init(&vm->invalidated_lock); INIT_LIST_HEAD(&vm->freed); - /* create scheduler entity for page table updates */ - r = drm_sched_entity_init(&vm->entity, adev->vm_manager.vm_pte_rqs, + /* create scheduler entities for page table updates */ + r = drm_sched_entity_init(&vm->direct, adev->vm_manager.vm_pte_rqs, adev->vm_manager.vm_pte_num_rqs, NULL); if (r) return r; + r = drm_sched_entity_init(&vm->delayed, adev->vm_manager.vm_pte_rqs, + adev->vm_manager.vm_pte_num_rqs, NULL); + if (r) + goto error_free_direct; + vm->pte_support_ats = false; if (vm_context == AMDGPU_VM_CONTEXT_COMPUTE) { @@ -2705,7 +2710,7 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm, bp.flags &= ~AMDGPU_GEM_CREATE_SHADOW; r = amdgpu_bo_create(adev, &bp, &root); if (r) - goto error_free_sched_entity; + goto error_free_delayed; r = amdgpu_bo_reserve(root, true); if (r) @@ -2748,8 +2753,11 @@ error_free_root: amdgpu_bo_unref(&vm->root.base.bo); vm->root.base.bo = NULL; -error_free_sched_entity: - drm_sched_entity_destroy(&vm->entity); +error_free_delayed: + drm_sched_entity_destroy(&vm->delayed); + +error_free_direct: + drm_sched_entity_destroy(&vm->direct); return r; } @@ -2938,7 +2946,8 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm) spin_unlock_irqrestore(&adev->vm_manager.pasid_lock, flags); } - drm_sched_entity_destroy(&vm->entity); + drm_sched_entity_destroy(&vm->direct); + drm_sched_entity_destroy(&vm->delayed); if (!RB_EMPTY_ROOT(&vm->va.rb_root)) { dev_err(adev->dev, "still active bo inside vm\n"); |