57 /* For process termination handling */
186 	mm = get_task_mm(pdd->process->lead_thread);  in kfd_sdma_activity_worker()
257  * by current process. Translates acquired wave count into number of compute units
282 	proc = pdd->process;  in kfd_get_cu_occupancy()
284 		pr_debug("Gpu-Id: %d has no active queues for process %d\n",  in kfd_get_cu_occupancy()
500 	if (!q || !q->process)  in kfd_procfs_add_queue()
502 	proc = q->process;  in kfd_procfs_add_queue()
706 /* kfd_process_alloc_gpuvm - Allocate GPU VM for the KFD process
707  *	This function should be only called right after the process
760  *	process for IB usage The memory reserved is for KFD to submit
803 	struct kfd_process *process;  in kfd_create_process()  local
815 	 * take kfd processes mutex before starting of process creation  in kfd_create_process()
816 	 * so there won't be a case where two threads of the same process  in kfd_create_process()
821 	/* A prior open of /dev/kfd could have already created the process. */  in kfd_create_process()
822 	process = find_process(thread, false);  in kfd_create_process()
823 	if (process) {  in kfd_create_process()
824 		pr_debug("Process already found\n");  in kfd_create_process()
826 		process = create_process(thread);  in kfd_create_process()
827 		if (IS_ERR(process))  in kfd_create_process()
830 		ret = kfd_process_init_cwsr_apu(process, filep);  in kfd_create_process()
837 		process->kobj = kfd_alloc_struct(process->kobj);  in kfd_create_process()
838 		if (!process->kobj) {  in kfd_create_process()
842 		ret = kobject_init_and_add(process->kobj, &procfs_type,  in kfd_create_process()
844 					   (int)process->lead_thread->pid);  in kfd_create_process()
847 			kobject_put(process->kobj);  in kfd_create_process()
851 		kfd_sysfs_create_file(process->kobj, &process->attr_pasid,  in kfd_create_process()
854 		process->kobj_queues = kobject_create_and_add("queues",  in kfd_create_process()
855 							process->kobj);  in kfd_create_process()
856 		if (!process->kobj_queues)  in kfd_create_process()
859 		kfd_procfs_add_sysfs_stats(process);  in kfd_create_process()
860 		kfd_procfs_add_sysfs_files(process);  in kfd_create_process()
861 		kfd_procfs_add_sysfs_counters(process);  in kfd_create_process()
864 	if (!IS_ERR(process))  in kfd_create_process()
865 		kref_get(&process->ref);  in kfd_create_process()
868 	return process;  in kfd_create_process()
871 	hash_del_rcu(&process->kfd_processes);  in kfd_create_process()
875 	mmu_notifier_put(&process->mmu_notifier);  in kfd_create_process()
881 	struct kfd_process *process;  in kfd_get_process()  local
890 	process = find_process(thread, false);  in kfd_get_process()
891 	if (!process)  in kfd_get_process()
894 	return process;  in kfd_get_process()
899 	struct kfd_process *process;  in find_process_by_mm()  local
901 	hash_for_each_possible_rcu(kfd_processes_table, process,  in find_process_by_mm()
903 		if (process->mm == mm)  in find_process_by_mm()
904 			return process;  in find_process_by_mm()
929 /* This increments the process->ref counter. */
952 	struct kfd_process *p = pdd->process;  in kfd_process_device_free_bos()
1024 		pr_debug("Releasing pdd (topology id %d) for process (pasid 0x%x)\n",  in kfd_process_destroy_pdds()
1108 /* No process locking is needed in this function, because the process
1110  * using it any more, otherwise we couldn't safely free the process
1312 	 * XNACK mode for this process that's compatible with all GPUs.  in kfd_process_xnack_mode()
1330 		 * per-process XNACK mode selection. But let the dev->noretry  in kfd_process_xnack_mode()
1357 	struct kfd_process *process;  in create_process()  local
1361 	process = kzalloc(sizeof(*process), GFP_KERNEL);  in create_process()
1362 	if (!process)  in create_process()
1365 	kref_init(&process->ref);  in create_process()
1366 	mutex_init(&process->mutex);  in create_process()
1367 	process->mm = thread->mm;  in create_process()
1368 	process->lead_thread = thread->group_leader;  in create_process()
1369 	process->n_pdds = 0;  in create_process()
1370 	process->queues_paused = false;  in create_process()
1371 	INIT_DELAYED_WORK(&process->eviction_work, evict_process_worker);  in create_process()
1372 	INIT_DELAYED_WORK(&process->restore_work, restore_process_worker);  in create_process()
1373 	process->last_restore_timestamp = get_jiffies_64();  in create_process()
1374 	err = kfd_event_init_process(process);  in create_process()
1377 	process->is_32bit_user_mode = in_compat_syscall();  in create_process()
1379 	process->pasid = kfd_pasid_alloc();  in create_process()
1380 	if (process->pasid == 0) {  in create_process()
1385 	err = pqm_init(&process->pqm, process);  in create_process()
1389 	/* init process apertures*/  in create_process()
1390 	err = kfd_init_apertures(process);  in create_process()
1395 	process->xnack_enabled = kfd_process_xnack_mode(process, false);  in create_process()
1397 	err = svm_range_list_init(process);  in create_process()
1401 	/* alloc_notifier needs to find the process in the hash table */  in create_process()
1402 	hash_add_rcu(kfd_processes_table, &process->kfd_processes,  in create_process()
1403 			(uintptr_t)process->mm);  in create_process()
1408 	kref_get(&process->ref);  in create_process()
1411 	 * because after this point we cannot unwind the process creation.  in create_process()
1413 	 * dropping the last process reference in the free_notifier.  in create_process()
1415 	mn = mmu_notifier_get(&kfd_process_mmu_notifier_ops, process->mm);  in create_process()
1420 	BUG_ON(mn != &process->mmu_notifier);  in create_process()
1422 	kfd_unref_process(process);  in create_process()
1423 	get_task_struct(process->lead_thread);  in create_process()
1425 	return process;  in create_process()
1428 	hash_del_rcu(&process->kfd_processes);  in create_process()
1429 	svm_range_list_fini(process);  in create_process()
1431 	kfd_process_free_outstanding_kfd_bos(process);  in create_process()
1432 	kfd_process_destroy_pdds(process);  in create_process()
1434 	pqm_uninit(&process->pqm);  in create_process()
1436 	kfd_pasid_free(process->pasid);  in create_process()
1438 	kfd_event_free_process(process);  in create_process()
1440 	mutex_destroy(&process->mutex);  in create_process()
1441 	kfree(process);  in create_process()
1503 		pr_err("Failed to init doorbell for process\n");  in kfd_create_process_device_data()
1514 	pdd->process = p;  in kfd_create_process_device_data()
1531 			pr_err("failed to allocate process context bo\n");  in kfd_create_process_device_data()
1550  * kfd_process_device_init_vm - Initialize a VM for a process-device
1552  * @pdd: The process-device
1576 	p = pdd->process;  in kfd_process_device_init_vm()
1583 		pr_err("Failed to create process VM object\n");  in kfd_process_device_init_vm()
1609  * Direct the IOMMU to bind the process (specifically the pasid->mm)
1611  * Unbinding occurs when the process dies or the device is removed.
1613  * Assumes that the process lock is held.
1623 		pr_err("Process device data doesn't exist\n");  in kfd_bind_process_to_device()
1665 /* Create specific handle mapped to mem from process local memory idr
1666  * Assumes that the process lock is held.
1674 /* Translate specific handle from process local memory idr
1675  * Assumes that the process lock is held.
1686 /* Remove specific handle from process local memory idr
1687  * Assumes that the process lock is held.
1696 /* This increments the process->ref counter. */
1717 /* This increments the process->ref counter. */
1733 /* kfd_process_evict_queues - Evict all user queues of a process
1735  * Eviction is reference-counted per process-device. This means multiple
1757 			pr_err("Failed to evict process queues\n");  in kfd_process_evict_queues()
1787 /* kfd_process_restore_queues - Restore all user queues of a process */
1801 			pr_err("Failed to restore process queues\n");  in kfd_process_restore_queues()
1843 	/* Process termination destroys this worker thread. So during the  in evict_process_worker()
1880 	/* Process termination destroys this worker thread. So during the  in restore_process_worker()
1888 	 * before KFD BOs are unreserved. If not, the process can be evicted  in restore_process_worker()
1927 			pr_err("Failed to suspend process 0x%x\n", p->pasid);  in kfd_suspend_all_processes()
1943 			pr_err("Restore process %d failed during resume\n",  in kfd_resume_all_processes()
1952 int kfd_reserved_mem_mmap(struct kfd_dev *dev, struct kfd_process *process,  in kfd_reserved_mem_mmap()  argument
1963 	pdd = kfd_get_process_device_data(dev, process);  in kfd_reserved_mem_mmap()
1971 		pr_err("Error allocating per process CWSR buffer.\n");  in kfd_reserved_mem_mmap()
1977 	/* Mapping pages to user process */  in kfd_reserved_mem_mmap()
2006 					pdd->process->pasid, type);  in kfd_flush_tlb()
2052 		seq_printf(m, "Process %d PASID 0x%x:\n",  in kfd_debugfs_mqds_by_process()