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      1 /*	$NetBSD: kfd_queue.c,v 1.3 2021/12/18 23:44:59 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2014 Advanced Micro Devices, Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  */
     25 
     26 #include <sys/cdefs.h>
     27 __KERNEL_RCSID(0, "$NetBSD: kfd_queue.c,v 1.3 2021/12/18 23:44:59 riastradh Exp $");
     28 
     29 #include <linux/slab.h>
     30 #include "kfd_priv.h"
     31 
     32 void print_queue_properties(struct queue_properties *q)
     33 {
     34 	if (!q)
     35 		return;
     36 
     37 	pr_debug("Printing queue properties:\n");
     38 	pr_debug("Queue Type: %u\n", q->type);
     39 	pr_debug("Queue Size: %llu\n", q->queue_size);
     40 	pr_debug("Queue percent: %u\n", q->queue_percent);
     41 	pr_debug("Queue Address: 0x%llX\n", q->queue_address);
     42 	pr_debug("Queue Id: %u\n", q->queue_id);
     43 	pr_debug("Queue Process Vmid: %u\n", q->vmid);
     44 	pr_debug("Queue Read Pointer: 0x%px\n", q->read_ptr);
     45 	pr_debug("Queue Write Pointer: 0x%px\n", q->write_ptr);
     46 	pr_debug("Queue Doorbell Pointer: 0x%p\n", q->doorbell_ptr);
     47 	pr_debug("Queue Doorbell Offset: %u\n", q->doorbell_off);
     48 }
     49 
     50 void print_queue(struct queue *q)
     51 {
     52 	if (!q)
     53 		return;
     54 	pr_debug("Printing queue:\n");
     55 	pr_debug("Queue Type: %u\n", q->properties.type);
     56 	pr_debug("Queue Size: %llu\n", q->properties.queue_size);
     57 	pr_debug("Queue percent: %u\n", q->properties.queue_percent);
     58 	pr_debug("Queue Address: 0x%llX\n", q->properties.queue_address);
     59 	pr_debug("Queue Id: %u\n", q->properties.queue_id);
     60 	pr_debug("Queue Process Vmid: %u\n", q->properties.vmid);
     61 	pr_debug("Queue Read Pointer: 0x%px\n", q->properties.read_ptr);
     62 	pr_debug("Queue Write Pointer: 0x%px\n", q->properties.write_ptr);
     63 	pr_debug("Queue Doorbell Pointer: 0x%p\n", q->properties.doorbell_ptr);
     64 	pr_debug("Queue Doorbell Offset: %u\n", q->properties.doorbell_off);
     65 	pr_debug("Queue MQD Address: 0x%p\n", q->mqd);
     66 	pr_debug("Queue MQD Gart: 0x%llX\n", q->gart_mqd_addr);
     67 	pr_debug("Queue Process Address: 0x%p\n", q->process);
     68 	pr_debug("Queue Device Address: 0x%p\n", q->device);
     69 }
     70 
     71 int init_queue(struct queue **q, const struct queue_properties *properties)
     72 {
     73 	struct queue *tmp_q;
     74 
     75 	tmp_q = kzalloc(sizeof(*tmp_q), GFP_KERNEL);
     76 	if (!tmp_q)
     77 		return -ENOMEM;
     78 
     79 	memcpy(&tmp_q->properties, properties, sizeof(*properties));
     80 
     81 	*q = tmp_q;
     82 	return 0;
     83 }
     84 
     85 void uninit_queue(struct queue *q)
     86 {
     87 	kfree(q);
     88 }
     89