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Commit 68c62306 authored by Christian König's avatar Christian König Committed by Alex Deucher
Browse files

drm/amdgpu: flush the HDP only once for CPU based VM updates 



No need to do this after every single update.

Signed-off-by: default avatarChristian König <christian.koenig@amd.com>
Reviewed-by: default avatarFelix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 03918b36

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

+12 −4
Original line number Diff line number Diff line
@@ -992,10 +992,6 @@ static void amdgpu_vm_cpu_set_ptes(struct amdgpu_pte_update_params *params, 
					i, value, flags);

		addr += incr;

	}



	/* Flush HDP */

	mb();

	amdgpu_gart_flush_gpu_tlb(params->adev, 0);

}



static int amdgpu_vm_wait_pd(struct amdgpu_device *adev, struct amdgpu_vm *vm,
@@ -1238,6 +1234,12 @@ int amdgpu_vm_update_directories(struct amdgpu_device *adev, 
	if (r)

		amdgpu_vm_invalidate_level(&vm->root);



	if (vm->use_cpu_for_update) {

		/* Flush HDP */

		mb();

		amdgpu_gart_flush_gpu_tlb(adev, 0);

	}



	return r;

}
@@ -1745,6 +1747,12 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev, 
		list_add(&bo_va->vm_status, &vm->cleared);

	spin_unlock(&vm->status_lock);



	if (vm->use_cpu_for_update) {

		/* Flush HDP */

		mb();

		amdgpu_gart_flush_gpu_tlb(adev, 0);

	}



	return 0;

}