drm/amdgpu/mes10.1: add the helper function for mes command submission

The helper function is used to submit mes command and poll waiting
for the command completion.

v2: replaced with amdgpu_fence_wait_polling to wait.

Signed-off-by: Jack Xiao <Jack.Xiao@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/mes_v10_1.c b/drivers/gpu/drm/amd/amdgpu/mes_v10_1.c
index da89b6a6507cad5284c568b15ed6ada8018ab4d1..3ce77839468d27f724e276d842baa6037e01cae7 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/mes_v10_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/mes_v10_1.c
@@ -78,6 +78,36 @@ static const struct amdgpu_ring_funcs mes_v10_1_ring_funcs = {
        .insert_nop = amdgpu_ring_insert_nop,
 };
 
+static int mes_v10_1_submit_pkt_and_poll_completion(struct amdgpu_mes *mes,
+                                                   void *pkt, int size)
+{
+       int ndw = size / 4;
+       signed long r;
+       union MESAPI__ADD_QUEUE *x_pkt = pkt;
+       struct amdgpu_device *adev = mes->adev;
+       struct amdgpu_ring *ring = &mes->ring;
+
+       BUG_ON(size % 4 != 0);
+
+       if (amdgpu_ring_alloc(ring, ndw))
+               return -ENOMEM;
+
+       amdgpu_ring_write_multiple(ring, pkt, ndw);
+       amdgpu_ring_commit(ring);
+
+       DRM_DEBUG("MES msg=%d was emitted\n", x_pkt->header.opcode);
+
+       r = amdgpu_fence_wait_polling(ring, ring->fence_drv.sync_seq,
+                                     adev->usec_timeout);
+       if (r < 1) {
+               DRM_ERROR("MES failed to response msg=%d\n",
+                         x_pkt->header.opcode);
+               return -ETIMEDOUT;
+       }
+
+       return 0;
+}
+
 static int mes_v10_1_add_hw_queue(struct amdgpu_mes *mes,
                                  struct mes_add_queue_input *input)
 {