[deliverable/linux.git] / drivers / gpu / drm / amd / amdkfd / kfd_process_queue_manager.c

/*
 * Copyright 2014 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#include <linux/slab.h>
#include <linux/list.h>
#include "kfd_device_queue_manager.h"
#include "kfd_priv.h"
#include "kfd_kernel_queue.h"

static inline struct process_queue_node *get_queue_by_qid(
			struct process_queue_manager *pqm, unsigned int qid)
{
	struct process_queue_node *pqn;

	BUG_ON(!pqm);

	list_for_each_entry(pqn, &pqm->queues, process_queue_list) {
		if (pqn->q && pqn->q->properties.queue_id == qid)
			return pqn;
		if (pqn->kq && pqn->kq->queue->properties.queue_id == qid)
			return pqn;
	}

	return NULL;
}

static int find_available_queue_slot(struct process_queue_manager *pqm,
					unsigned int *qid)
{
	unsigned long found;

	BUG_ON(!pqm || !qid);

	pr_debug("kfd: in %s\n", __func__);

	found = find_first_zero_bit(pqm->queue_slot_bitmap,
			KFD_MAX_NUM_OF_QUEUES_PER_PROCESS);

	pr_debug("kfd: the new slot id %lu\n", found);

	if (found >= KFD_MAX_NUM_OF_QUEUES_PER_PROCESS) {
		pr_info("amdkfd: Can not open more queues for process with pasid %d\n",
				pqm->process->pasid);
		return -ENOMEM;
	}

	set_bit(found, pqm->queue_slot_bitmap);
	*qid = found;

	return 0;
}

int pqm_init(struct process_queue_manager *pqm, struct kfd_process *p)
{
	BUG_ON(!pqm);

	INIT_LIST_HEAD(&pqm->queues);
	pqm->queue_slot_bitmap =
			kzalloc(DIV_ROUND_UP(KFD_MAX_NUM_OF_QUEUES_PER_PROCESS,
					BITS_PER_BYTE), GFP_KERNEL);
	if (pqm->queue_slot_bitmap == NULL)
		return -ENOMEM;
	pqm->process = p;

	return 0;
}

void pqm_uninit(struct process_queue_manager *pqm)
{
	int retval;
	struct process_queue_node *pqn, *next;

	BUG_ON(!pqm);

	pr_debug("In func %s\n", __func__);

	list_for_each_entry_safe(pqn, next, &pqm->queues, process_queue_list) {
		retval = pqm_destroy_queue(
				pqm,
				(pqn->q != NULL) ?
					pqn->q->properties.queue_id :
					pqn->kq->queue->properties.queue_id);

		if (retval != 0) {
			pr_err("kfd: failed to destroy queue\n");
			return;
		}
	}
	kfree(pqm->queue_slot_bitmap);
	pqm->queue_slot_bitmap = NULL;
}

static int create_cp_queue(struct process_queue_manager *pqm,
				struct kfd_dev *dev, struct queue **q,
				struct queue_properties *q_properties,
				struct file *f, unsigned int qid)
{
	int retval;

	retval = 0;

	/* Doorbell initialized in user space*/
	q_properties->doorbell_ptr = NULL;

	q_properties->doorbell_off =
			kfd_queue_id_to_doorbell(dev, pqm->process, qid);

	/* let DQM handle it*/
	q_properties->vmid = 0;
	q_properties->queue_id = qid;

	retval = init_queue(q, *q_properties);
	if (retval != 0)
		goto err_init_queue;

	(*q)->device = dev;
	(*q)->process = pqm->process;

	pr_debug("kfd: PQM After init queue");

	return retval;

err_init_queue:
	return retval;
}

int pqm_create_queue(struct process_queue_manager *pqm,
			    struct kfd_dev *dev,
			    struct file *f,
			    struct queue_properties *properties,
			    unsigned int flags,
			    enum kfd_queue_type type,
			    unsigned int *qid)
{
	int retval;
	struct kfd_process_device *pdd;
	struct queue_properties q_properties;
	struct queue *q;
	struct process_queue_node *pqn;
	struct kernel_queue *kq;
	int num_queues = 0;
	struct queue *cur;

	BUG_ON(!pqm || !dev || !properties || !qid);

	memset(&q_properties, 0, sizeof(struct queue_properties));
	memcpy(&q_properties, properties, sizeof(struct queue_properties));
	q = NULL;
	kq = NULL;

	pdd = kfd_get_process_device_data(dev, pqm->process);
	if (!pdd) {
		pr_err("Process device data doesn't exist\n");
		return -1;
	}

	/*
	 * for debug process, verify that it is within the static queues limit
	 * currently limit is set to half of the total avail HQD slots
	 * If we are just about to create DIQ, the is_debug flag is not set yet
	 * Hence we also check the type as well
	 */
	if ((pdd->qpd.is_debug) ||
		(type == KFD_QUEUE_TYPE_DIQ)) {
		list_for_each_entry(cur, &pdd->qpd.queues_list, list)
			num_queues++;
		if (num_queues >= dev->device_info->max_no_of_hqd/2)
			return (-ENOSPC);
	}

	retval = find_available_queue_slot(pqm, qid);
	if (retval != 0)
		return retval;

	if (list_empty(&pqm->queues)) {
		pdd->qpd.pqm = pqm;
		dev->dqm->ops.register_process(dev->dqm, &pdd->qpd);
	}

	pqn = kzalloc(sizeof(struct process_queue_node), GFP_KERNEL);
	if (!pqn) {
		retval = -ENOMEM;
		goto err_allocate_pqn;
	}

	switch (type) {
	case KFD_QUEUE_TYPE_SDMA:
	case KFD_QUEUE_TYPE_COMPUTE:
		/* check if there is over subscription */
		if ((sched_policy == KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION) &&
		((dev->dqm->processes_count >= VMID_PER_DEVICE) ||
		(dev->dqm->queue_count >= PIPE_PER_ME_CP_SCHEDULING * QUEUES_PER_PIPE))) {
			pr_err("kfd: over-subscription is not allowed in radeon_kfd.sched_policy == 1\n");
			retval = -EPERM;
			goto err_create_queue;
		}

		retval = create_cp_queue(pqm, dev, &q, &q_properties, f, *qid);
		if (retval != 0)
			goto err_create_queue;
		pqn->q = q;
		pqn->kq = NULL;
		retval = dev->dqm->ops.create_queue(dev->dqm, q, &pdd->qpd,
						&q->properties.vmid);
		pr_debug("DQM returned %d for create_queue\n", retval);
		print_queue(q);
		break;
	case KFD_QUEUE_TYPE_DIQ:
		kq = kernel_queue_init(dev, KFD_QUEUE_TYPE_DIQ);
		if (kq == NULL) {
			retval = -ENOMEM;
			goto err_create_queue;
		}
		kq->queue->properties.queue_id = *qid;
		pqn->kq = kq;
		pqn->q = NULL;
		retval = dev->dqm->ops.create_kernel_queue(dev->dqm,
							kq, &pdd->qpd);
		break;
	default:
		BUG();
		break;
	}

	if (retval != 0) {
		pr_debug("Error dqm create queue\n");
		goto err_create_queue;
	}

	pr_debug("kfd: PQM After DQM create queue\n");

	list_add(&pqn->process_queue_list, &pqm->queues);

	if (q) {
		*properties = q->properties;
		pr_debug("kfd: PQM done creating queue\n");
		print_queue_properties(properties);
	}

	return retval;

err_create_queue:
	kfree(pqn);
err_allocate_pqn:
	/* check if queues list is empty unregister process from device */
	clear_bit(*qid, pqm->queue_slot_bitmap);
	if (list_empty(&pqm->queues))
		dev->dqm->ops.unregister_process(dev->dqm, &pdd->qpd);
	return retval;
}

int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid)
{
	struct process_queue_node *pqn;
	struct kfd_process_device *pdd;
	struct device_queue_manager *dqm;
	struct kfd_dev *dev;
	int retval;

	dqm = NULL;

	BUG_ON(!pqm);
	retval = 0;

	pr_debug("kfd: In Func %s\n", __func__);

	pqn = get_queue_by_qid(pqm, qid);
	if (pqn == NULL) {
		pr_err("kfd: queue id does not match any known queue\n");
		return -EINVAL;
	}

	dev = NULL;
	if (pqn->kq)
		dev = pqn->kq->dev;
	if (pqn->q)
		dev = pqn->q->device;
	BUG_ON(!dev);

	pdd = kfd_get_process_device_data(dev, pqm->process);
	if (!pdd) {
		pr_err("Process device data doesn't exist\n");
		return -1;
	}

	if (pqn->kq) {
		/* destroy kernel queue (DIQ) */
		dqm = pqn->kq->dev->dqm;
		dqm->ops.destroy_kernel_queue(dqm, pqn->kq, &pdd->qpd);
		kernel_queue_uninit(pqn->kq);
	}

	if (pqn->q) {
		dqm = pqn->q->device->dqm;
		retval = dqm->ops.destroy_queue(dqm, &pdd->qpd, pqn->q);
		if (retval != 0)
			return retval;

		uninit_queue(pqn->q);
	}

	list_del(&pqn->process_queue_list);
	kfree(pqn);
	clear_bit(qid, pqm->queue_slot_bitmap);

	if (list_empty(&pqm->queues))
		dqm->ops.unregister_process(dqm, &pdd->qpd);

	return retval;
}

int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid,
			struct queue_properties *p)
{
	int retval;
	struct process_queue_node *pqn;

	BUG_ON(!pqm);

	pqn = get_queue_by_qid(pqm, qid);
	if (!pqn) {
		pr_debug("amdkfd: No queue %d exists for update operation\n",
				qid);
		return -EFAULT;
	}

	pqn->q->properties.queue_address = p->queue_address;
	pqn->q->properties.queue_size = p->queue_size;
	pqn->q->properties.queue_percent = p->queue_percent;
	pqn->q->properties.priority = p->priority;

	retval = pqn->q->device->dqm->ops.update_queue(pqn->q->device->dqm,
							pqn->q);
	if (retval != 0)
		return retval;

	return 0;
}

struct kernel_queue *pqm_get_kernel_queue(
					struct process_queue_manager *pqm,
					unsigned int qid)
{
	struct process_queue_node *pqn;

	BUG_ON(!pqm);

	pqn = get_queue_by_qid(pqm, qid);
	if (pqn && pqn->kq)
		return pqn->kq;

	return NULL;
}
Commit	Line	Data
45102048 BG	1	/*
	2	* Copyright 2014 Advanced Micro Devices, Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	*/
	23
	24	#include <linux/slab.h>
	25	#include <linux/list.h>
	26	#include "kfd_device_queue_manager.h"
	27	#include "kfd_priv.h"
	28	#include "kfd_kernel_queue.h"
	29
	30	static inline struct process_queue_node *get_queue_by_qid(
	31	struct process_queue_manager *pqm, unsigned int qid)
	32	{
	33	struct process_queue_node *pqn;
	34
	35	BUG_ON(!pqm);
	36
	37	list_for_each_entry(pqn, &pqm->queues, process_queue_list) {
	38	if (pqn->q && pqn->q->properties.queue_id == qid)
	39	return pqn;
	40	if (pqn->kq && pqn->kq->queue->properties.queue_id == qid)
	41	return pqn;
	42	}
	43
	44	return NULL;
	45	}
	46
	47	static int find_available_queue_slot(struct process_queue_manager *pqm,
	48	unsigned int *qid)
	49	{
	50	unsigned long found;
	51
	52	BUG_ON(!pqm \|\| !qid);
	53
	54	pr_debug("kfd: in %s\n", __func__);
	55
	56	found = find_first_zero_bit(pqm->queue_slot_bitmap,
b8cbab04	57	KFD_MAX_NUM_OF_QUEUES_PER_PROCESS);
45102048 BG	58
	59	pr_debug("kfd: the new slot id %lu\n", found);
	60
b8cbab04	61	if (found >= KFD_MAX_NUM_OF_QUEUES_PER_PROCESS) {
45102048 BG	62	pr_info("amdkfd: Can not open more queues for process with pasid %d\n",
	63	pqm->process->pasid);
	64	return -ENOMEM;
	65	}
	66
	67	set_bit(found, pqm->queue_slot_bitmap);
	68	*qid = found;
	69
	70	return 0;
	71	}
	72
	73	int pqm_init(struct process_queue_manager pqm, struct kfd_process p)
	74	{
	75	BUG_ON(!pqm);
	76
	77	INIT_LIST_HEAD(&pqm->queues);
	78	pqm->queue_slot_bitmap =
b8cbab04	79	kzalloc(DIV_ROUND_UP(KFD_MAX_NUM_OF_QUEUES_PER_PROCESS,
45102048 BG	80	BITS_PER_BYTE), GFP_KERNEL);
	81	if (pqm->queue_slot_bitmap == NULL)
	82	return -ENOMEM;
	83	pqm->process = p;
	84
	85	return 0;
	86	}
	87
	88	void pqm_uninit(struct process_queue_manager *pqm)
	89	{
	90	int retval;
	91	struct process_queue_node pqn, next;
	92
	93	BUG_ON(!pqm);
	94
	95	pr_debug("In func %s\n", __func__);
	96
	97	list_for_each_entry_safe(pqn, next, &pqm->queues, process_queue_list) {
	98	retval = pqm_destroy_queue(
	99	pqm,
	100	(pqn->q != NULL) ?
	101	pqn->q->properties.queue_id :
	102	pqn->kq->queue->properties.queue_id);
	103
	104	if (retval != 0) {
	105	pr_err("kfd: failed to destroy queue\n");
	106	return;
	107	}
	108	}
	109	kfree(pqm->queue_slot_bitmap);
	110	pqm->queue_slot_bitmap = NULL;
	111	}
	112
	113	static int create_cp_queue(struct process_queue_manager *pqm,
	114	struct kfd_dev dev, struct queue *q,
	115	struct queue_properties *q_properties,
	116	struct file *f, unsigned int qid)
	117	{
	118	int retval;
	119
	120	retval = 0;
	121
	122	/* Doorbell initialized in user space*/
	123	q_properties->doorbell_ptr = NULL;
	124
	125	q_properties->doorbell_off =
	126	kfd_queue_id_to_doorbell(dev, pqm->process, qid);
	127
	128	/* let DQM handle it*/
	129	q_properties->vmid = 0;
	130	q_properties->queue_id = qid;
45102048 BG	131
	132	retval = init_queue(q, *q_properties);
	133	if (retval != 0)
	134	goto err_init_queue;
	135
	136	(*q)->device = dev;
	137	(*q)->process = pqm->process;
	138
	139	pr_debug("kfd: PQM After init queue");
	140
	141	return retval;
	142
	143	err_init_queue:
	144	return retval;
	145	}
	146
	147	int pqm_create_queue(struct process_queue_manager *pqm,
	148	struct kfd_dev *dev,
	149	struct file *f,
	150	struct queue_properties *properties,
	151	unsigned int flags,
	152	enum kfd_queue_type type,
	153	unsigned int *qid)
	154	{
	155	int retval;
	156	struct kfd_process_device *pdd;
	157	struct queue_properties q_properties;
	158	struct queue *q;
	159	struct process_queue_node *pqn;
	160	struct kernel_queue *kq;
992839ad YS	161	int num_queues = 0;
992839ad YS	162	struct queue *cur;
45102048 BG	163
	164	BUG_ON(!pqm \|\| !dev \|\| !properties \|\| !qid);
	165
	166	memset(&q_properties, 0, sizeof(struct queue_properties));
	167	memcpy(&q_properties, properties, sizeof(struct queue_properties));
	168	q = NULL;
	169	kq = NULL;
	170
093c7d8c AS	171	pdd = kfd_get_process_device_data(dev, pqm->process);
	172	if (!pdd) {
	173	pr_err("Process device data doesn't exist\n");
	174	return -1;
	175	}
45102048	176
992839ad YS	177	/*
	178	* for debug process, verify that it is within the static queues limit
	179	* currently limit is set to half of the total avail HQD slots
	180	* If we are just about to create DIQ, the is_debug flag is not set yet
	181	* Hence we also check the type as well
	182	*/
	183	if ((pdd->qpd.is_debug) \|\|
	184	(type == KFD_QUEUE_TYPE_DIQ)) {
	185	list_for_each_entry(cur, &pdd->qpd.queues_list, list)
	186	num_queues++;
	187	if (num_queues >= dev->device_info->max_no_of_hqd/2)
	188	return (-ENOSPC);
	189	}
	190
45102048 BG	191	retval = find_available_queue_slot(pqm, qid);
	192	if (retval != 0)
	193	return retval;
	194
	195	if (list_empty(&pqm->queues)) {
	196	pdd->qpd.pqm = pqm;
45c9a5e4	197	dev->dqm->ops.register_process(dev->dqm, &pdd->qpd);
45102048 BG	198	}
	199
	200	pqn = kzalloc(sizeof(struct process_queue_node), GFP_KERNEL);
	201	if (!pqn) {
	202	retval = -ENOMEM;
	203	goto err_allocate_pqn;
	204	}
	205
	206	switch (type) {
bcea3081	207	case KFD_QUEUE_TYPE_SDMA:
45102048 BG	208	case KFD_QUEUE_TYPE_COMPUTE:
	209	/* check if there is over subscription */
	210	if ((sched_policy == KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION) &&
	211	((dev->dqm->processes_count >= VMID_PER_DEVICE) \|\|
	212	(dev->dqm->queue_count >= PIPE_PER_ME_CP_SCHEDULING * QUEUES_PER_PIPE))) {
	213	pr_err("kfd: over-subscription is not allowed in radeon_kfd.sched_policy == 1\n");
	214	retval = -EPERM;
	215	goto err_create_queue;
	216	}
	217
	218	retval = create_cp_queue(pqm, dev, &q, &q_properties, f, *qid);
	219	if (retval != 0)
	220	goto err_create_queue;
	221	pqn->q = q;
	222	pqn->kq = NULL;
45c9a5e4	223	retval = dev->dqm->ops.create_queue(dev->dqm, q, &pdd->qpd,
45102048	224	&q->properties.vmid);
b8cbab04	225	pr_debug("DQM returned %d for create_queue\n", retval);
45102048 BG	226	print_queue(q);
	227	break;
	228	case KFD_QUEUE_TYPE_DIQ:
	229	kq = kernel_queue_init(dev, KFD_QUEUE_TYPE_DIQ);
	230	if (kq == NULL) {
e048a0b2	231	retval = -ENOMEM;
45102048 BG	232	goto err_create_queue;
	233	}
	234	kq->queue->properties.queue_id = *qid;
	235	pqn->kq = kq;
	236	pqn->q = NULL;
45c9a5e4 OG	237	retval = dev->dqm->ops.create_kernel_queue(dev->dqm,
45c9a5e4 OG	238	kq, &pdd->qpd);
45102048 BG	239	break;
	240	default:
	241	BUG();
	242	break;
	243	}
	244
	245	if (retval != 0) {
b8cbab04	246	pr_debug("Error dqm create queue\n");
45102048 BG	247	goto err_create_queue;
	248	}
	249
	250	pr_debug("kfd: PQM After DQM create queue\n");
	251
	252	list_add(&pqn->process_queue_list, &pqm->queues);
	253
	254	if (q) {
	255	*properties = q->properties;
	256	pr_debug("kfd: PQM done creating queue\n");
	257	print_queue_properties(properties);
	258	}
	259
	260	return retval;
	261
	262	err_create_queue:
	263	kfree(pqn);
	264	err_allocate_pqn:
f046bfdf	265	/* check if queues list is empty unregister process from device */
45102048	266	clear_bit(*qid, pqm->queue_slot_bitmap);
f046bfdf	267	if (list_empty(&pqm->queues))
b3869b17	268	dev->dqm->ops.unregister_process(dev->dqm, &pdd->qpd);
45102048 BG	269	return retval;
	270	}
	271
	272	int pqm_destroy_queue(struct process_queue_manager *pqm, unsigned int qid)
	273	{
	274	struct process_queue_node *pqn;
	275	struct kfd_process_device *pdd;
	276	struct device_queue_manager *dqm;
	277	struct kfd_dev *dev;
	278	int retval;
	279
	280	dqm = NULL;
	281
	282	BUG_ON(!pqm);
	283	retval = 0;
	284
	285	pr_debug("kfd: In Func %s\n", __func__);
	286
	287	pqn = get_queue_by_qid(pqm, qid);
	288	if (pqn == NULL) {
	289	pr_err("kfd: queue id does not match any known queue\n");
	290	return -EINVAL;
	291	}
	292
	293	dev = NULL;
	294	if (pqn->kq)
	295	dev = pqn->kq->dev;
	296	if (pqn->q)
	297	dev = pqn->q->device;
	298	BUG_ON(!dev);
	299
093c7d8c AS	300	pdd = kfd_get_process_device_data(dev, pqm->process);
	301	if (!pdd) {
	302	pr_err("Process device data doesn't exist\n");
	303	return -1;
	304	}
45102048 BG	305
	306	if (pqn->kq) {
	307	/* destroy kernel queue (DIQ) */
	308	dqm = pqn->kq->dev->dqm;
45c9a5e4	309	dqm->ops.destroy_kernel_queue(dqm, pqn->kq, &pdd->qpd);
45102048 BG	310	kernel_queue_uninit(pqn->kq);
	311	}
	312
	313	if (pqn->q) {
	314	dqm = pqn->q->device->dqm;
45c9a5e4	315	retval = dqm->ops.destroy_queue(dqm, &pdd->qpd, pqn->q);
45102048 BG	316	if (retval != 0)
	317	return retval;
	318
	319	uninit_queue(pqn->q);
	320	}
	321
	322	list_del(&pqn->process_queue_list);
	323	kfree(pqn);
	324	clear_bit(qid, pqm->queue_slot_bitmap);
	325
	326	if (list_empty(&pqm->queues))
45c9a5e4	327	dqm->ops.unregister_process(dqm, &pdd->qpd);
45102048 BG	328
	329	return retval;
	330	}
	331
	332	int pqm_update_queue(struct process_queue_manager *pqm, unsigned int qid,
	333	struct queue_properties *p)
	334	{
	335	int retval;
	336	struct process_queue_node *pqn;
	337
	338	BUG_ON(!pqm);
	339
	340	pqn = get_queue_by_qid(pqm, qid);
b9dce23d OG	341	if (!pqn) {
	342	pr_debug("amdkfd: No queue %d exists for update operation\n",
	343	qid);
	344	return -EFAULT;
	345	}
45102048 BG	346
	347	pqn->q->properties.queue_address = p->queue_address;
	348	pqn->q->properties.queue_size = p->queue_size;
	349	pqn->q->properties.queue_percent = p->queue_percent;
	350	pqn->q->properties.priority = p->priority;
	351
45c9a5e4 OG	352	retval = pqn->q->device->dqm->ops.update_queue(pqn->q->device->dqm,
45c9a5e4 OG	353	pqn->q);
45102048 BG	354	if (retval != 0)
	355	return retval;
	356
	357	return 0;
	358	}
	359
fbeb661b	360	struct kernel_queue *pqm_get_kernel_queue(
7347a6cb	361	struct process_queue_manager *pqm,
45102048 BG	362	unsigned int qid)
	363	{
	364	struct process_queue_node *pqn;
	365
	366	BUG_ON(!pqm);
	367
	368	pqn = get_queue_by_qid(pqm, qid);
	369	if (pqn && pqn->kq)
	370	return pqn->kq;
	371
	372	return NULL;
	373	}
	374
	375