56 /* For process termination handling */
182 	mm = get_task_mm(pdd->process->lead_thread);  in kfd_sdma_activity_worker()
253  * by current process. Translates acquired wave count into number of compute units
279 	proc = pdd->process;  in kfd_get_cu_occupancy()
281 		pr_debug("Gpu-Id: %d has no active queues for process %d\n",  in kfd_get_cu_occupancy()
496 	if (!q || !q->process)  in kfd_procfs_add_queue()
498 	proc = q->process;  in kfd_procfs_add_queue()
697 /* kfd_process_alloc_gpuvm - Allocate GPU VM for the KFD process
698  *	This function should be only called right after the process
729 	 * will take care of the bo removal when the process finishes.  in kfd_process_alloc_gpuvm()
730 	 * We do not need to take p->mutex, because the process is just  in kfd_process_alloc_gpuvm()
767  *	process for IB usage The memory reserved is for KFD to submit
798 	struct kfd_process *process;  in kfd_create_process()  local
810 	 * take kfd processes mutex before starting of process creation  in kfd_create_process()
811 	 * so there won't be a case where two threads of the same process  in kfd_create_process()
816 	/* A prior open of /dev/kfd could have already created the process. */  in kfd_create_process()
817 	process = find_process(thread);  in kfd_create_process()
818 	if (process) {  in kfd_create_process()
819 		pr_debug("Process already found\n");  in kfd_create_process()
821 		process = create_process(thread);  in kfd_create_process()
822 		if (IS_ERR(process))  in kfd_create_process()
825 		ret = kfd_process_init_cwsr_apu(process, filep);  in kfd_create_process()
832 		process->kobj = kfd_alloc_struct(process->kobj);  in kfd_create_process()
833 		if (!process->kobj) {  in kfd_create_process()
837 		ret = kobject_init_and_add(process->kobj, &procfs_type,  in kfd_create_process()
839 					   (int)process->lead_thread->pid);  in kfd_create_process()
842 			kobject_put(process->kobj);  in kfd_create_process()
846 		kfd_sysfs_create_file(process->kobj, &process->attr_pasid,  in kfd_create_process()
849 		process->kobj_queues = kobject_create_and_add("queues",  in kfd_create_process()
850 							process->kobj);  in kfd_create_process()
851 		if (!process->kobj_queues)  in kfd_create_process()
854 		kfd_procfs_add_sysfs_stats(process);  in kfd_create_process()
855 		kfd_procfs_add_sysfs_files(process);  in kfd_create_process()
856 		kfd_procfs_add_sysfs_counters(process);  in kfd_create_process()
859 	if (!IS_ERR(process))  in kfd_create_process()
860 		kref_get(&process->ref);  in kfd_create_process()
863 	return process;  in kfd_create_process()
866 	hash_del_rcu(&process->kfd_processes);  in kfd_create_process()
870 	mmu_notifier_put(&process->mmu_notifier);  in kfd_create_process()
876 	struct kfd_process *process;  in kfd_get_process()  local
885 	process = find_process(thread);  in kfd_get_process()
886 	if (!process)  in kfd_get_process()
889 	return process;  in kfd_get_process()
894 	struct kfd_process *process;  in find_process_by_mm()  local
896 	hash_for_each_possible_rcu(kfd_processes_table, process,  in find_process_by_mm()
898 		if (process->mm == mm)  in find_process_by_mm()
899 			return process;  in find_process_by_mm()
924 	struct kfd_process *p = pdd->process;  in kfd_process_device_free_bos()
965 		pr_debug("Releasing pdd (topology id %d) for process (pasid 0x%x)\n",  in kfd_process_destroy_pdds()
1043 /* No process locking is needed in this function, because the process
1045  * using it any more, otherwise we couldn't safely free the process
1119 	/* Iterate over all process device data structures and if the  in kfd_process_notifier_release()
1254 	 * XNACK mode for this process that's compatible with all GPUs.  in kfd_process_xnack_mode()
1272 		 * per-process XNACK mode selection. But let the dev->noretry  in kfd_process_xnack_mode()
1300 	struct kfd_process *process;  in create_process()  local
1304 	process = kzalloc(sizeof(*process), GFP_KERNEL);  in create_process()
1305 	if (!process)  in create_process()
1308 	kref_init(&process->ref);  in create_process()
1309 	mutex_init(&process->mutex);  in create_process()
1310 	process->mm = thread->mm;  in create_process()
1311 	process->lead_thread = thread->group_leader;  in create_process()
1312 	process->n_pdds = 0;  in create_process()
1313 	INIT_DELAYED_WORK(&process->eviction_work, evict_process_worker);  in create_process()
1314 	INIT_DELAYED_WORK(&process->restore_work, restore_process_worker);  in create_process()
1315 	process->last_restore_timestamp = get_jiffies_64();  in create_process()
1316 	kfd_event_init_process(process);  in create_process()
1317 	process->is_32bit_user_mode = in_compat_syscall();  in create_process()
1319 	process->pasid = kfd_pasid_alloc();  in create_process()
1320 	if (process->pasid == 0)  in create_process()
1323 	err = pqm_init(&process->pqm, process);  in create_process()
1327 	/* init process apertures*/  in create_process()
1328 	err = kfd_init_apertures(process);  in create_process()
1333 	process->xnack_enabled = kfd_process_xnack_mode(process, false);  in create_process()
1335 	err = svm_range_list_init(process);  in create_process()
1339 	/* alloc_notifier needs to find the process in the hash table */  in create_process()
1340 	hash_add_rcu(kfd_processes_table, &process->kfd_processes,  in create_process()
1341 			(uintptr_t)process->mm);  in create_process()
1344 	 * because after this point we cannot unwind the process creation.  in create_process()
1346 	 * dropping the last process reference in the free_notifier.  in create_process()
1348 	mn = mmu_notifier_get(&kfd_process_mmu_notifier_ops, process->mm);  in create_process()
1353 	BUG_ON(mn != &process->mmu_notifier);  in create_process()
1355 	get_task_struct(process->lead_thread);  in create_process()
1357 	return process;  in create_process()
1360 	hash_del_rcu(&process->kfd_processes);  in create_process()
1361 	svm_range_list_fini(process);  in create_process()
1363 	kfd_process_free_outstanding_kfd_bos(process);  in create_process()
1364 	kfd_process_destroy_pdds(process);  in create_process()
1366 	pqm_uninit(&process->pqm);  in create_process()
1368 	kfd_pasid_free(process->pasid);  in create_process()
1370 	mutex_destroy(&process->mutex);  in create_process()
1371 	kfree(process);  in create_process()
1438 		pr_err("Failed to init doorbell for process\n");  in kfd_create_process_device_data()
1449 	pdd->process = p;  in kfd_create_process_device_data()
1469  * kfd_process_device_init_vm - Initialize a VM for a process-device
1471  * @pdd: The process-device
1495 	p = pdd->process;  in kfd_process_device_init_vm()
1502 		pr_err("Failed to create process VM object\n");  in kfd_process_device_init_vm()
1527  * Direct the IOMMU to bind the process (specifically the pasid->mm)
1529  * Unbinding occurs when the process dies or the device is removed.
1531  * Assumes that the process lock is held.
1541 		pr_err("Process device data doesn't exist\n");  in kfd_bind_process_to_device()
1583 /* Create specific handle mapped to mem from process local memory idr
1584  * Assumes that the process lock is held.
1592 /* Translate specific handle from process local memory idr
1593  * Assumes that the process lock is held.
1604 /* Remove specific handle from process local memory idr
1605  * Assumes that the process lock is held.
1614 /* This increments the process->ref counter. */
1635 /* This increments the process->ref counter. */
1651 /* kfd_process_evict_queues - Evict all user queues of a process
1653  * Eviction is reference-counted per process-device. This means multiple
1668 			pr_err("Failed to evict process queues\n");  in kfd_process_evict_queues()
1695 /* kfd_process_restore_queues - Restore all user queues of a process */
1707 			pr_err("Failed to restore process queues\n");  in kfd_process_restore_queues()
1750 	/* Process termination destroys this worker thread. So during the  in evict_process_worker()
1787 	/* Process termination destroys this worker thread. So during the  in restore_process_worker()
1795 	 * before KFD BOs are unreserved. If not, the process can be evicted  in restore_process_worker()
1834 			pr_err("Failed to suspend process 0x%x\n", p->pasid);  in kfd_suspend_all_processes()
1850 			pr_err("Restore process %d failed during resume\n",  in kfd_resume_all_processes()
1859 int kfd_reserved_mem_mmap(struct kfd_dev *dev, struct kfd_process *process,  in kfd_reserved_mem_mmap()  argument
1870 	pdd = kfd_get_process_device_data(dev, process);  in kfd_reserved_mem_mmap()
1878 		pr_err("Error allocating per process CWSR buffer.\n");  in kfd_reserved_mem_mmap()
1884 	/* Mapping pages to user process */  in kfd_reserved_mem_mmap()
1903 					pdd->process->pasid, type);  in kfd_flush_tlb()
1918 		seq_printf(m, "Process %d PASID 0x%x:\n",  in kfd_debugfs_mqds_by_process()