diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index db63ff5c80f2..67c37b22f8ef 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -232,6 +232,38 @@ int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm, } /** + * amdgpu_vm_check - helper for amdgpu_vm_ready + */ +static int amdgpu_vm_check(void *param, struct amdgpu_bo *bo) +{ + /* if anything is swapped out don't swap it in here, + just abort and wait for the next CS */ + if (!amdgpu_bo_gpu_accessible(bo)) + return -ERESTARTSYS; + + if (bo->shadow && !amdgpu_bo_gpu_accessible(bo->shadow)) + return -ERESTARTSYS; + + return 0; +} + +/** + * amdgpu_vm_ready - check VM is ready for updates + * + * @adev: amdgpu device + * @vm: VM to check + * + * Check if all VM PDs/PTs are ready for updates + */ +bool amdgpu_vm_ready(struct amdgpu_device *adev, struct amdgpu_vm *vm) +{ + if (amdgpu_vm_check(NULL, vm->root.bo)) + return false; + + return !amdgpu_vm_validate_pt_bos(adev, vm, amdgpu_vm_check, NULL); +} + +/** * amdgpu_vm_alloc_levels - allocate the PD/PT levels * * @adev: amdgpu_device pointer |