drm/amdgpu: wire up emit_wreg for CIK SDMA

Needed for vm_flush unification.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
index 66d9b5f85d6e8eeb74a588c80d645ac12e674ec7..fbbac849804416eabf54120af2f01f2da08f9411 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
@@ -907,6 +907,14 @@ static void cik_sdma_ring_emit_vm_flush(struct amdgpu_ring *ring,
        amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */
 }
 
+static void cik_sdma_ring_emit_wreg(struct amdgpu_ring *ring,
+                                   uint32_t reg, uint32_t val)
+{
+       amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
+       amdgpu_ring_write(ring, reg);
+       amdgpu_ring_write(ring, val);
+}
+
 static void cik_enable_sdma_mgcg(struct amdgpu_device *adev,
                                 bool enable)
 {
@@ -1295,6 +1303,7 @@ static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = {
        .test_ib = cik_sdma_ring_test_ib,
        .insert_nop = cik_sdma_ring_insert_nop,
        .pad_ib = cik_sdma_ring_pad_ib,
+       .emit_wreg = cik_sdma_ring_emit_wreg,
 };
 
 static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev)