drm/amdgpu/mes: implement mes self test

Add mes self test to verify its fundamental functionality by
running ring test and ib test of mes kernel queue.

Signed-off-by: Jack Xiao <Jack.Xiao@amd.com>
Acked-by: Christian König <christian.koenig@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_mes.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
index e2b1da0..c9516b3 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.c
@@ -990,3 +990,100 @@ static int amdgpu_mes_test_queues(struct amdgpu_ring **added_rings)
 
        return 0;
 }
+
+int amdgpu_mes_self_test(struct amdgpu_device *adev)
+{
+       struct amdgpu_vm *vm = NULL;
+       struct amdgpu_mes_ctx_data ctx_data = {0};
+       struct amdgpu_ring *added_rings[AMDGPU_MES_CTX_MAX_RINGS] = { NULL };
+       int gang_ids[3] = {0};
+       int queue_types[][2] = { { AMDGPU_RING_TYPE_GFX,
+                                  AMDGPU_MES_CTX_MAX_GFX_RINGS},
+                                { AMDGPU_RING_TYPE_COMPUTE,
+                                  AMDGPU_MES_CTX_MAX_COMPUTE_RINGS},
+                                { AMDGPU_RING_TYPE_SDMA,
+                                  AMDGPU_MES_CTX_MAX_SDMA_RINGS } };
+       int i, r, pasid, k = 0;
+
+       pasid = amdgpu_pasid_alloc(16);
+       if (pasid < 0) {
+               dev_warn(adev->dev, "No more PASIDs available!");
+               pasid = 0;
+       }
+
+       vm = kzalloc(sizeof(*vm), GFP_KERNEL);
+       if (!vm) {
+               r = -ENOMEM;
+               goto error_pasid;
+       }
+
+       r = amdgpu_vm_init(adev, vm);
+       if (r) {
+               DRM_ERROR("failed to initialize vm\n");
+               goto error_pasid;
+       }
+
+       r = amdgpu_mes_ctx_alloc_meta_data(adev, &ctx_data);
+       if (r) {
+               DRM_ERROR("failed to alloc ctx meta data\n");
+               goto error_pasid;
+       }
+
+       r = amdgpu_mes_test_map_ctx_meta_data(adev, vm, &ctx_data);
+       if (r) {
+               DRM_ERROR("failed to map ctx meta data\n");
+               goto error_vm;
+       }
+
+       r = amdgpu_mes_create_process(adev, pasid, vm);
+       if (r) {
+               DRM_ERROR("failed to create MES process\n");
+               goto error_vm;
+       }
+
+       for (i = 0; i < ARRAY_SIZE(queue_types); i++) {
+               r = amdgpu_mes_test_create_gang_and_queues(adev, pasid,
+                                                          &gang_ids[i],
+                                                          queue_types[i][0],
+                                                          queue_types[i][1],
+                                                          &added_rings[k],
+                                                          &ctx_data);
+               if (r)
+                       goto error_queues;
+
+               k += queue_types[i][1];
+       }
+
+       /* start ring test and ib test for MES queues */
+       amdgpu_mes_test_queues(added_rings);
+
+error_queues:
+       /* remove all queues */
+       for (i = 0; i < ARRAY_SIZE(added_rings); i++) {
+               if (!added_rings[i])
+                       continue;
+               amdgpu_mes_remove_ring(adev, added_rings[i]);
+       }
+
+       for (i = 0; i < ARRAY_SIZE(gang_ids); i++) {
+               if (!gang_ids[i])
+                       continue;
+               amdgpu_mes_remove_gang(adev, gang_ids[i]);
+       }
+
+       amdgpu_mes_destroy_process(adev, pasid);
+
+error_vm:
+       BUG_ON(amdgpu_bo_reserve(ctx_data.meta_data_obj, true));
+       amdgpu_vm_bo_rmv(adev, ctx_data.meta_data_va);
+       amdgpu_bo_unreserve(ctx_data.meta_data_obj);
+       amdgpu_vm_fini(adev, vm);
+
+error_pasid:
+       if (pasid)
+               amdgpu_pasid_free(pasid);
+
+       amdgpu_mes_ctx_free_meta_data(&ctx_data);
+       kfree(vm);
+       return 0;
+}

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
index 828d52c..ad593e3 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mes.h
@@ -266,4 +266,6 @@ int amdgpu_mes_ctx_alloc_meta_data(struct amdgpu_device *adev,
                                   struct amdgpu_mes_ctx_data *ctx_data);
 void amdgpu_mes_ctx_free_meta_data(struct amdgpu_mes_ctx_data *ctx_data);
 
+int amdgpu_mes_self_test(struct amdgpu_device *adev);
+
 #endif /* __AMDGPU_MES_H__ */