drm/amdgpu: add encode tests for vcn

Add encode ring and ib tests.

Signed-off-by: Leo Liu <leo.liu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
index a32182c..ec4d7ca 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
@@ -32,4 +32,7 @@ void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring);
 void amdgpu_vcn_ring_end_use(struct amdgpu_ring *ring);
 int amdgpu_vcn_dec_ring_test_ib(struct amdgpu_ring *ring, long timeout);
 
+int amdgpu_vcn_enc_ring_test_ring(struct amdgpu_ring *ring);
+int amdgpu_vcn_enc_ring_test_ib(struct amdgpu_ring *ring, long timeout);
+
 #endif