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#include <linux/sched.h>
24#include <linux/device.h>
25#include "kfd_priv.h"
26#include "amdgpu_amdkfd.h"
27
28static int kfd_init(void)
29{
30	int err;
31
32	/* Verify module parameters */
33	if ((sched_policy < KFD_SCHED_POLICY_HWS) ||
34		(sched_policy > KFD_SCHED_POLICY_NO_HWS)) {
35		pr_err("sched_policy has invalid value\n");
36		return -EINVAL;
37	}
38
39	/* Verify module parameters */
40	if ((max_num_of_queues_per_device < 1) ||
41		(max_num_of_queues_per_device >
42			KFD_MAX_NUM_OF_QUEUES_PER_DEVICE)) {
43		pr_err("max_num_of_queues_per_device must be between 1 to KFD_MAX_NUM_OF_QUEUES_PER_DEVICE\n");
44		return -EINVAL;
45	}
46
47	err = kfd_chardev_init();
48	if (err < 0)
49		goto err_ioctl;
50
51	err = kfd_topology_init();
52	if (err < 0)
53		goto err_topology;
54
55	err = kfd_process_create_wq();
56	if (err < 0)
57		goto err_create_wq;
58
59	/* Ignore the return value, so that we can continue
60	 * to init the KFD, even if procfs isn't craated
61	 */
62	kfd_procfs_init();
63
64	kfd_debugfs_init();
65
66	return 0;
67
68err_create_wq:
69	kfd_topology_shutdown();
70err_topology:
71	kfd_chardev_exit();
72err_ioctl:
73	return err;
74}
75
76static void kfd_exit(void)
77{
78	kfd_debugfs_fini();
79	kfd_process_destroy_wq();
80	kfd_procfs_shutdown();
81	kfd_topology_shutdown();
82	kfd_chardev_exit();
83}
84
85int kgd2kfd_init(void)
86{
87	return kfd_init();
88}
89
90void kgd2kfd_exit(void)
91{
92	kfd_exit();
93}