185 	struct amdgpu_hive_info *hive = container_of(  in amdgpu_xgmi_show_attrs()  local
189 		return snprintf(buf, PAGE_SIZE, "%llu\n", hive->hive_id);  in amdgpu_xgmi_show_attrs()
196 	struct amdgpu_hive_info *hive = container_of(  in amdgpu_xgmi_hive_release()  local
199 	mutex_destroy(&hive->hive_lock);  in amdgpu_xgmi_hive_release()
200 	kfree(hive);  in amdgpu_xgmi_hive_release()
257 					 struct amdgpu_hive_info *hive)  in amdgpu_xgmi_sysfs_add_dev_info()  argument
276 	if (hive->kobj.parent != (&adev->dev->kobj)) {  in amdgpu_xgmi_sysfs_add_dev_info()
277 		ret = sysfs_create_link(&adev->dev->kobj, &hive->kobj,  in amdgpu_xgmi_sysfs_add_dev_info()
285 	sprintf(node, "node%d", atomic_read(&hive->number_devices));  in amdgpu_xgmi_sysfs_add_dev_info()
287 	ret = sysfs_create_link(&hive->kobj, &adev->dev->kobj, node);  in amdgpu_xgmi_sysfs_add_dev_info()
307 					  struct amdgpu_hive_info *hive)  in amdgpu_xgmi_sysfs_rem_dev_info()  argument
315 	if (hive->kobj.parent != (&adev->dev->kobj))  in amdgpu_xgmi_sysfs_rem_dev_info()
318 	sprintf(node, "node%d", atomic_read(&hive->number_devices));  in amdgpu_xgmi_sysfs_rem_dev_info()
319 	sysfs_remove_link(&hive->kobj, node);  in amdgpu_xgmi_sysfs_rem_dev_info()
327 	struct amdgpu_hive_info *hive = NULL, *tmp = NULL;  in amdgpu_get_xgmi_hive()  local
333 	if (adev->hive) {  in amdgpu_get_xgmi_hive()
334 		kobject_get(&adev->hive->kobj);  in amdgpu_get_xgmi_hive()
335 		return adev->hive;  in amdgpu_get_xgmi_hive()
341 		list_for_each_entry_safe(hive, tmp, &xgmi_hive_list, node)  {  in amdgpu_get_xgmi_hive()
342 			if (hive->hive_id == adev->gmc.xgmi.hive_id)  in amdgpu_get_xgmi_hive()
347 	hive = kzalloc(sizeof(*hive), GFP_KERNEL);  in amdgpu_get_xgmi_hive()
348 	if (!hive) {  in amdgpu_get_xgmi_hive()
350 		hive = NULL;  in amdgpu_get_xgmi_hive()
355 	ret = kobject_init_and_add(&hive->kobj,  in amdgpu_get_xgmi_hive()
361 		kfree(hive);  in amdgpu_get_xgmi_hive()
362 		hive = NULL;  in amdgpu_get_xgmi_hive()
366 	hive->hive_id = adev->gmc.xgmi.hive_id;  in amdgpu_get_xgmi_hive()
367 	INIT_LIST_HEAD(&hive->device_list);  in amdgpu_get_xgmi_hive()
368 	INIT_LIST_HEAD(&hive->node);  in amdgpu_get_xgmi_hive()
369 	mutex_init(&hive->hive_lock);  in amdgpu_get_xgmi_hive()
370 	atomic_set(&hive->in_reset, 0);  in amdgpu_get_xgmi_hive()
371 	atomic_set(&hive->number_devices, 0);  in amdgpu_get_xgmi_hive()
372 	task_barrier_init(&hive->tb);  in amdgpu_get_xgmi_hive()
373 	hive->pstate = AMDGPU_XGMI_PSTATE_UNKNOWN;  in amdgpu_get_xgmi_hive()
374 	hive->hi_req_gpu = NULL;  in amdgpu_get_xgmi_hive()
379 	hive->hi_req_count = AMDGPU_MAX_XGMI_DEVICE_PER_HIVE;  in amdgpu_get_xgmi_hive()
380 	list_add_tail(&hive->node, &xgmi_hive_list);  in amdgpu_get_xgmi_hive()
383 	if (hive)  in amdgpu_get_xgmi_hive()
384 		kobject_get(&hive->kobj);  in amdgpu_get_xgmi_hive()
386 	return hive;  in amdgpu_get_xgmi_hive()
389 void amdgpu_put_xgmi_hive(struct amdgpu_hive_info *hive)  in amdgpu_put_xgmi_hive()  argument
391 	if (hive)  in amdgpu_put_xgmi_hive()
392 		kobject_put(&hive->kobj);  in amdgpu_put_xgmi_hive()
398 	struct amdgpu_hive_info *hive = amdgpu_get_xgmi_hive(adev);  in amdgpu_xgmi_set_pstate()  local
399 	struct amdgpu_device *request_adev = hive->hi_req_gpu ?  in amdgpu_xgmi_set_pstate()
400 						hive->hi_req_gpu : adev;  in amdgpu_xgmi_set_pstate()
402 	bool init_low = hive->pstate == AMDGPU_XGMI_PSTATE_UNKNOWN;  in amdgpu_xgmi_set_pstate()
404 	amdgpu_put_xgmi_hive(hive);  in amdgpu_xgmi_set_pstate()
408 	if (!hive || adev->asic_type != CHIP_VEGA20)  in amdgpu_xgmi_set_pstate()
411 	mutex_lock(&hive->hive_lock);  in amdgpu_xgmi_set_pstate()
414 		hive->hi_req_count++;  in amdgpu_xgmi_set_pstate()
416 		hive->hi_req_count--;  in amdgpu_xgmi_set_pstate()
422 	if (hive->pstate == pstate ||  in amdgpu_xgmi_set_pstate()
423 			(!is_hi_req && hive->hi_req_count && !init_low))  in amdgpu_xgmi_set_pstate()
438 		hive->pstate = hive->hi_req_count ?  in amdgpu_xgmi_set_pstate()
439 					hive->pstate : AMDGPU_XGMI_PSTATE_MIN;  in amdgpu_xgmi_set_pstate()
441 		hive->pstate = pstate;  in amdgpu_xgmi_set_pstate()
442 		hive->hi_req_gpu = pstate != AMDGPU_XGMI_PSTATE_MIN ?  in amdgpu_xgmi_set_pstate()
446 	mutex_unlock(&hive->hive_lock);  in amdgpu_xgmi_set_pstate()
450 int amdgpu_xgmi_update_topology(struct amdgpu_hive_info *hive, struct amdgpu_device *adev)  in amdgpu_xgmi_update_topology()  argument
456 					 atomic_read(&hive->number_devices),  in amdgpu_xgmi_update_topology()
483 	struct amdgpu_hive_info *hive;  in amdgpu_xgmi_add_device()  local
518 	hive = amdgpu_get_xgmi_hive(adev);  in amdgpu_xgmi_add_device()
519 	if (!hive) {  in amdgpu_xgmi_add_device()
526 	mutex_lock(&hive->hive_lock);  in amdgpu_xgmi_add_device()
530 	list_add_tail(&adev->gmc.xgmi.head, &hive->device_list);  in amdgpu_xgmi_add_device()
531 	list_for_each_entry(entry, &hive->device_list, head)  in amdgpu_xgmi_add_device()
534 	atomic_set(&hive->number_devices, count);  in amdgpu_xgmi_add_device()
536 	task_barrier_add_task(&hive->tb);  in amdgpu_xgmi_add_device()
539 		list_for_each_entry(tmp_adev, &hive->device_list, gmc.xgmi.head) {  in amdgpu_xgmi_add_device()
547 			ret = amdgpu_xgmi_update_topology(hive, tmp_adev);  in amdgpu_xgmi_add_device()
553 		list_for_each_entry(tmp_adev, &hive->device_list, gmc.xgmi.head) {  in amdgpu_xgmi_add_device()
568 		ret = amdgpu_xgmi_sysfs_add_dev_info(adev, hive);  in amdgpu_xgmi_add_device()
571 	mutex_unlock(&hive->hive_lock);  in amdgpu_xgmi_add_device()
574 		adev->hive = hive;  in amdgpu_xgmi_add_device()
578 		amdgpu_put_xgmi_hive(hive);  in amdgpu_xgmi_add_device()
589 	struct amdgpu_hive_info *hive = adev->hive;  in amdgpu_xgmi_remove_device()  local
594 	if (!hive)  in amdgpu_xgmi_remove_device()
597 	mutex_lock(&hive->hive_lock);  in amdgpu_xgmi_remove_device()
598 	task_barrier_rem_task(&hive->tb);  in amdgpu_xgmi_remove_device()
599 	amdgpu_xgmi_sysfs_rem_dev_info(adev, hive);  in amdgpu_xgmi_remove_device()
600 	if (hive->hi_req_gpu == adev)  in amdgpu_xgmi_remove_device()
601 		hive->hi_req_gpu = NULL;  in amdgpu_xgmi_remove_device()
603 	mutex_unlock(&hive->hive_lock);  in amdgpu_xgmi_remove_device()
605 	amdgpu_put_xgmi_hive(hive);  in amdgpu_xgmi_remove_device()
606 	adev->hive = NULL;  in amdgpu_xgmi_remove_device()
608 	if (atomic_dec_return(&hive->number_devices) == 0) {  in amdgpu_xgmi_remove_device()
611 		list_del(&hive->node);  in amdgpu_xgmi_remove_device()
614 		amdgpu_put_xgmi_hive(hive);  in amdgpu_xgmi_remove_device()