drm/amdgpu: support error reporting for sdma ip block

invoke sdma query_ras_error_count to get sdma single
bit error count

Signed-off-by: Hawking Zhang <[e-mail]>
Reviewed-by: Alex Deucher <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

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

···
 {
 	struct ras_manager *obj = amdgpu_ras_find_obj(adev, &info->head);
 	struct ras_err_data err_data = {0, 0, 0, NULL};
+	int i;
 
 	if (!obj)
 		return -EINVAL;
···
 		 */
 		if (adev->umc.funcs->query_ras_error_address)
 			adev->umc.funcs->query_ras_error_address(adev, &err_data);
+		break;
+	case AMDGPU_RAS_BLOCK__SDMA:
+		if (adev->sdma.funcs->query_ras_error_count) {
+			for (i = 0; i < adev->sdma.num_instances; i++)
+				adev->sdma.funcs->query_ras_error_count(adev, i,
+									&err_data);
+		}
 		break;
 	case AMDGPU_RAS_BLOCK__GFX:
 		if (adev->gfx.funcs->query_ras_error_count)