drm/amdgpu: hdp flush&inval should always do

This fixes Tonga vm-fault issue when running disaster
(a multiple context GL heavy tests),
We should always flush & invalidate hdp no matter vm
used or not.

Signed-off-by: Monk Liu <[e-mail]>
Reviewed-by: Christian König <[e-mail]>
Reviewed-by: Chunming Zhou <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>
Cc: [e-mail]

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

···
 			amdgpu_ring_undo(ring);
 			return r;
 		}
-
-		if (ring->funcs->emit_hdp_flush)
-			amdgpu_ring_emit_hdp_flush(ring);
 	}
+
+	if (ring->funcs->emit_hdp_flush)
+		amdgpu_ring_emit_hdp_flush(ring);
 
 	/* always set cond_exec_polling to CONTINUE */
 	*ring->cond_exe_cpu_addr = 1;
···
 		ring->current_ctx = ctx;
 	}
 
-	if (vm) {
-		if (ring->funcs->emit_hdp_invalidate)
-			amdgpu_ring_emit_hdp_invalidate(ring);
-	}
+	if (ring->funcs->emit_hdp_invalidate)
+		amdgpu_ring_emit_hdp_invalidate(ring);
 
 	r = amdgpu_fence_emit(ring, &hwf);
 	if (r) {