fix the issue when run clinfo:
"amdgpu: Failed to create process VM object".

when amdgpu initialized, seq64 do mampping and update bo mapping in vm page 
table.
But when clifo run. It also initializes a vm for a process device through the 
function kfd_process_device_init_vm
and ensure the root PD is clean through the function amdgpu_vm_pt_is_root_clean.
So they have a conflict, and clinfo  always failed.

Signed-off-by: Jesse Zhang <jesse.zh...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index ed4a8c5d26d7..0bc0bc75be15 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -2361,12 +2361,6 @@ int amdgpu_vm_make_compute(struct amdgpu_device *adev, 
struct amdgpu_vm *vm)
         * changing any other state, in case it fails.
         */
        if (pte_support_ats != vm->pte_support_ats) {
-               /* Sanity checks */
-               if (!amdgpu_vm_pt_is_root_clean(adev, vm)) {
-                       r = -EINVAL;
-                       goto unreserve_bo;
-               }
-
                vm->pte_support_ats = pte_support_ats;
                r = amdgpu_vm_pt_clear(adev, vm, to_amdgpu_bo_vm(vm->root.bo),
                                       false);
-- 
2.34.1

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