56 /* For process termination handling */
184 	mm = get_task_mm(pdd->process->lead_thread);  in kfd_sdma_activity_worker()
255  * by current process. Translates acquired wave count into number of compute units
280 	proc = pdd->process;  in kfd_get_cu_occupancy()
282 		pr_debug("Gpu-Id: %d has no active queues for process %d\n",  in kfd_get_cu_occupancy()
498 	if (!q || !q->process)  in kfd_procfs_add_queue()
500 	proc = q->process;  in kfd_procfs_add_queue()
704 /* kfd_process_alloc_gpuvm - Allocate GPU VM for the KFD process
705  *	This function should be only called right after the process
758  *	process for IB usage The memory reserved is for KFD to submit
801 	struct kfd_process *process;  in kfd_create_process()  local
814 	 * take kfd processes mutex before starting of process creation  in kfd_create_process()
815 	 * so there won't be a case where two threads of the same process  in kfd_create_process()
822 		pr_debug("KFD is locked! Cannot create process");  in kfd_create_process()
826 	/* A prior open of /dev/kfd could have already created the process. */  in kfd_create_process()
827 	process = find_process(thread, false);  in kfd_create_process()
828 	if (process) {  in kfd_create_process()
829 		pr_debug("Process already found\n");  in kfd_create_process()
831 		process = create_process(thread);  in kfd_create_process()
832 		if (IS_ERR(process))  in kfd_create_process()
838 		process->kobj = kfd_alloc_struct(process->kobj);  in kfd_create_process()
839 		if (!process->kobj) {  in kfd_create_process()
843 		ret = kobject_init_and_add(process->kobj, &procfs_type,  in kfd_create_process()
845 					   (int)process->lead_thread->pid);  in kfd_create_process()
848 			kobject_put(process->kobj);  in kfd_create_process()
852 		kfd_sysfs_create_file(process->kobj, &process->attr_pasid,  in kfd_create_process()
855 		process->kobj_queues = kobject_create_and_add("queues",  in kfd_create_process()
856 							process->kobj);  in kfd_create_process()
857 		if (!process->kobj_queues)  in kfd_create_process()
860 		kfd_procfs_add_sysfs_stats(process);  in kfd_create_process()
861 		kfd_procfs_add_sysfs_files(process);  in kfd_create_process()
862 		kfd_procfs_add_sysfs_counters(process);  in kfd_create_process()
864 		init_waitqueue_head(&process->wait_irq_drain);  in kfd_create_process()
867 	if (!IS_ERR(process))  in kfd_create_process()
868 		kref_get(&process->ref);  in kfd_create_process()
872 	return process;  in kfd_create_process()
877 	struct kfd_process *process;  in kfd_get_process()  local
886 	process = find_process(thread, false);  in kfd_get_process()
887 	if (!process)  in kfd_get_process()
890 	return process;  in kfd_get_process()
895 	struct kfd_process *process;  in find_process_by_mm()  local
897 	hash_for_each_possible_rcu(kfd_processes_table, process,  in find_process_by_mm()
899 		if (process->mm == mm)  in find_process_by_mm()
900 			return process;  in find_process_by_mm()
925 /* This increments the process->ref counter. */
948 	struct kfd_process *p = pdd->process;  in kfd_process_device_free_bos()
1020 		pr_debug("Releasing pdd (topology id %d) for process (pasid 0x%x)\n",  in kfd_process_destroy_pdds()
1103 /* No process locking is needed in this function, because the process
1105  * using it any more, otherwise we couldn't safely free the process
1256 	 * Move all remaining kfd_process from the process table to a  in kfd_cleanup_processes()
1349 					pdd->process->debug_trap_enabled);  in kfd_process_device_init_cwsr_dgpu()
1398 	 * XNACK mode for this process that's compatible with all GPUs.  in kfd_process_xnack_mode()
1416 		 * per-process XNACK mode selection. But let the dev->noretry  in kfd_process_xnack_mode()
1453 	struct kfd_process *process;  in create_process()  local
1457 	process = kzalloc(sizeof(*process), GFP_KERNEL);  in create_process()
1458 	if (!process)  in create_process()
1461 	kref_init(&process->ref);  in create_process()
1462 	mutex_init(&process->mutex);  in create_process()
1463 	process->mm = thread->mm;  in create_process()
1464 	process->lead_thread = thread->group_leader;  in create_process()
1465 	process->n_pdds = 0;  in create_process()
1466 	process->queues_paused = false;  in create_process()
1467 	INIT_DELAYED_WORK(&process->eviction_work, evict_process_worker);  in create_process()
1468 	INIT_DELAYED_WORK(&process->restore_work, restore_process_worker);  in create_process()
1469 	process->last_restore_timestamp = get_jiffies_64();  in create_process()
1470 	err = kfd_event_init_process(process);  in create_process()
1473 	process->is_32bit_user_mode = in_compat_syscall();  in create_process()
1474 	process->debug_trap_enabled = false;  in create_process()
1475 	process->debugger_process = NULL;  in create_process()
1476 	process->exception_enable_mask = 0;  in create_process()
1477 	atomic_set(&process->debugged_process_count, 0);  in create_process()
1478 	sema_init(&process->runtime_enable_sema, 0);  in create_process()
1480 	process->pasid = kfd_pasid_alloc();  in create_process()
1481 	if (process->pasid == 0) {  in create_process()
1486 	err = pqm_init(&process->pqm, process);  in create_process()
1490 	/* init process apertures*/  in create_process()
1491 	err = kfd_init_apertures(process);  in create_process()
1496 	process->xnack_enabled = kfd_process_xnack_mode(process, false);  in create_process()
1498 	err = svm_range_list_init(process);  in create_process()
1502 	/* alloc_notifier needs to find the process in the hash table */  in create_process()
1503 	hash_add_rcu(kfd_processes_table, &process->kfd_processes,  in create_process()
1504 			(uintptr_t)process->mm);  in create_process()
1509 	kref_get(&process->ref);  in create_process()
1512 	 * because after this point we cannot unwind the process creation.  in create_process()
1514 	 * dropping the last process reference in the free_notifier.  in create_process()
1516 	mn = mmu_notifier_get(&kfd_process_mmu_notifier_ops, process->mm);  in create_process()
1521 	BUG_ON(mn != &process->mmu_notifier);  in create_process()
1523 	kfd_unref_process(process);  in create_process()
1524 	get_task_struct(process->lead_thread);  in create_process()
1526 	INIT_WORK(&process->debug_event_workarea, debug_event_write_work_handler);  in create_process()
1528 	return process;  in create_process()
1531 	hash_del_rcu(&process->kfd_processes);  in create_process()
1532 	svm_range_list_fini(process);  in create_process()
1534 	kfd_process_free_outstanding_kfd_bos(process);  in create_process()
1535 	kfd_process_destroy_pdds(process);  in create_process()
1537 	pqm_uninit(&process->pqm);  in create_process()
1539 	kfd_pasid_free(process->pasid);  in create_process()
1541 	kfd_event_free_process(process);  in create_process()
1543 	mutex_destroy(&process->mutex);  in create_process()
1544 	kfree(process);  in create_process()
1580 	pdd->process = p;  in kfd_create_process_device_data()
1597 			pr_err("failed to allocate process context bo\n");  in kfd_create_process_device_data()
1621  * kfd_process_device_init_vm - Initialize a VM for a process-device
1623  * @pdd: The process-device
1654 	p = pdd->process;  in kfd_process_device_init_vm()
1661 		pr_err("Failed to create process VM object\n");  in kfd_process_device_init_vm()
1694  * Direct the IOMMU to bind the process (specifically the pasid->mm)
1696  * Unbinding occurs when the process dies or the device is removed.
1698  * Assumes that the process lock is held.
1708 		pr_err("Process device data doesn't exist\n");  in kfd_bind_process_to_device()
1737 /* Create specific handle mapped to mem from process local memory idr
1738  * Assumes that the process lock is held.
1746 /* Translate specific handle from process local memory idr
1747  * Assumes that the process lock is held.
1758 /* Remove specific handle from process local memory idr
1759  * Assumes that the process lock is held.
1768 /* This increments the process->ref counter. */
1789 /* This increments the process->ref counter. */
1805 /* kfd_process_evict_queues - Evict all user queues of a process
1807  * Eviction is reference-counted per process-device. This means multiple
1829 			pr_err("Failed to evict process queues\n");  in kfd_process_evict_queues()
1859 /* kfd_process_restore_queues - Restore all user queues of a process */
1873 			pr_err("Failed to restore process queues\n");  in kfd_process_restore_queues()
1915 	/* Process termination destroys this worker thread. So during the  in evict_process_worker()
1952 	/* Process termination destroys this worker thread. So during the  in restore_process_worker()
1960 	 * before KFD BOs are unreserved. If not, the process can be evicted  in restore_process_worker()
2001 			pr_err("Failed to suspend process 0x%x\n", p->pasid);  in kfd_suspend_all_processes()
2017 			pr_err("Restore process %d failed during resume\n",  in kfd_resume_all_processes()
2026 int kfd_reserved_mem_mmap(struct kfd_node *dev, struct kfd_process *process,  in kfd_reserved_mem_mmap()  argument
2037 	pdd = kfd_get_process_device_data(dev, process);  in kfd_reserved_mem_mmap()
2045 		pr_err("Error allocating per process CWSR buffer.\n");  in kfd_reserved_mem_mmap()
2051 	/* Mapping pages to user process */  in kfd_reserved_mem_mmap()
2083 				dev->adev, pdd->process->pasid, type, xcc);  in kfd_flush_tlb()
2087 /* assumes caller holds process lock. */
2097 	pdd->process->irq_drain_is_open = true;  in kfd_process_drain_interrupts()
2102 	irq_drain_fence[3] = pdd->process->pasid;  in kfd_process_drain_interrupts()
2115 		pdd->process->irq_drain_is_open = false;  in kfd_process_drain_interrupts()
2119 	r = wait_event_interruptible(pdd->process->wait_irq_drain,  in kfd_process_drain_interrupts()
2120 				     !READ_ONCE(pdd->process->irq_drain_is_open));  in kfd_process_drain_interrupts()
2122 		pdd->process->irq_drain_is_open = false;  in kfd_process_drain_interrupts()
2252 		seq_printf(m, "Process %d PASID 0x%x:\n",  in kfd_debugfs_mqds_by_process()