drm/amdgpu: add num_level to the VM manager

Needs to be filled with handling.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h

@@ -154,6 +154,7 @@ struct amdgpu_vm_manager {
 	unsigned				seqno[AMDGPU_MAX_RINGS];
 
 	uint32_t				max_pfn;
+	uint32_t				num_level;
 	/* vram base address for page table entry  */
 	u64					vram_base_offset;
 	/* is vm enabled? */

drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c

@@ -621,6 +621,7 @@ static int gmc_v6_0_vm_init(struct amdgpu_device *adev)
 	 * amdkfd will use VMIDs 8-15
 	 */
 	adev->vm_manager.num_ids = AMDGPU_NUM_OF_VMIDS;
+	adev->vm_manager.num_level = 1;
 	amdgpu_vm_manager_init(adev);
 
 	/* base offset of vram pages */

drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c

@@ -742,6 +742,7 @@ static int gmc_v7_0_vm_init(struct amdgpu_device *adev)
 	 * amdkfd will use VMIDs 8-15
 	 */
 	adev->vm_manager.num_ids = AMDGPU_NUM_OF_VMIDS;
+	adev->vm_manager.num_level = 1;
 	amdgpu_vm_manager_init(adev);
 
 	/* base offset of vram pages */

drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c

@@ -945,6 +945,7 @@ static int gmc_v8_0_vm_init(struct amdgpu_device *adev)
 	 * amdkfd will use VMIDs 8-15
 	 */
 	adev->vm_manager.num_ids = AMDGPU_NUM_OF_VMIDS;
+	adev->vm_manager.num_level = 1;
 	amdgpu_vm_manager_init(adev);
 
 	/* base offset of vram pages */

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

@@ -500,6 +500,7 @@ static int gmc_v9_0_vm_init(struct amdgpu_device *adev)
 	 * amdkfd will use VMIDs 8-15
 	 */
 	adev->vm_manager.num_ids = AMDGPU_NUM_OF_VMIDS;
+	adev->vm_manager.num_level = 1;
 	amdgpu_vm_manager_init(adev);
 
 	/* base offset of vram pages */