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drm/amdgpu: adapt vm size for multi vmpt 

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou 2017-03-27 11:53:12 +08:00 committed by Alex Deucher
parent f7effef8d6
commit 36f8c1f903
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
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@ -500,6 +500,12 @@ 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;
/* Because of four level VMPTs, vm size at least is 256GB.
256TB is OK as well */
if (amdgpu_vm_size < 256) {
DRM_WARN("vm size at least is 256GB!\n");
amdgpu_vm_size = 256;
}
adev->vm_manager.num_level = 1;
amdgpu_vm_manager_init(adev);