Commit 5be32356 authored by Philip Yang's avatar Philip Yang Committed by Alex Deucher
Browse files

drm/amdgpu: vm flush needed after updating PDEs 



If page table PDEs is evicted and restored, after updating PDEs, need
increase vm->tlb_seq, then amdgpu_vm_flush will flush TLB before command
submission.

Signed-off-by: default avatarPhilip Yang <Philip.Yang@amd.com>
Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 688ea549

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

+3 −0
Original line number Diff line number Diff line
@@ -764,6 +764,9 @@ int amdgpu_vm_update_pdes(struct amdgpu_device *adev, 
	if (r)

		goto error;



	/* vm_flush_needed after updating PDEs */

	atomic64_inc(&vm->tlb_seq);



	while (!list_empty(&vm->relocated)) {

		entry = list_first_entry(&vm->relocated,

					 struct amdgpu_vm_bo_base,