Commit | Line | Data |
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d87f36a0 | 1 | // SPDX-License-Identifier: GPL-2.0 OR MIT |
4a488a7a | 2 | /* |
d87f36a0 | 3 | * Copyright 2014-2022 Advanced Micro Devices, Inc. |
4a488a7a OG |
4 | * |
5 | * Permission is hereby granted, free of charge, to any person obtaining a | |
6 | * copy of this software and associated documentation files (the "Software"), | |
7 | * to deal in the Software without restriction, including without limitation | |
8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
9 | * and/or sell copies of the Software, and to permit persons to whom the | |
10 | * Software is furnished to do so, subject to the following conditions: | |
11 | * | |
12 | * The above copyright notice and this permission notice shall be included in | |
13 | * all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
19 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
20 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
21 | * OTHER DEALINGS IN THE SOFTWARE. | |
22 | */ | |
23 | ||
4a488a7a | 24 | #include <linux/sched.h> |
4a488a7a OG |
25 | #include <linux/device.h> |
26 | #include "kfd_priv.h" | |
2d3d25b6 | 27 | #include "amdgpu_amdkfd.h" |
4a488a7a | 28 | |
04d5e276 | 29 | static int kfd_init(void) |
4a488a7a OG |
30 | { |
31 | int err; | |
32 | ||
31c21fec BG |
33 | /* Verify module parameters */ |
34 | if ((sched_policy < KFD_SCHED_POLICY_HWS) || | |
35 | (sched_policy > KFD_SCHED_POLICY_NO_HWS)) { | |
79775b62 | 36 | pr_err("sched_policy has invalid value\n"); |
04d5e276 | 37 | return -EINVAL; |
31c21fec BG |
38 | } |
39 | ||
19f6d2a6 | 40 | /* Verify module parameters */ |
ca400b2a | 41 | if ((max_num_of_queues_per_device < 1) || |
b8cbab04 OG |
42 | (max_num_of_queues_per_device > |
43 | KFD_MAX_NUM_OF_QUEUES_PER_DEVICE)) { | |
79775b62 | 44 | pr_err("max_num_of_queues_per_device must be between 1 to KFD_MAX_NUM_OF_QUEUES_PER_DEVICE\n"); |
04d5e276 | 45 | return -EINVAL; |
19f6d2a6 OG |
46 | } |
47 | ||
4a488a7a OG |
48 | err = kfd_chardev_init(); |
49 | if (err < 0) | |
50 | goto err_ioctl; | |
51 | ||
5b5c4e40 EP |
52 | err = kfd_topology_init(); |
53 | if (err < 0) | |
54 | goto err_topology; | |
55 | ||
1679ae8f FK |
56 | err = kfd_process_create_wq(); |
57 | if (err < 0) | |
58 | goto err_create_wq; | |
19f6d2a6 | 59 | |
de9f26bb KR |
60 | /* Ignore the return value, so that we can continue |
61 | * to init the KFD, even if procfs isn't craated | |
62 | */ | |
63 | kfd_procfs_init(); | |
64 | ||
851a645e FK |
65 | kfd_debugfs_init(); |
66 | ||
4a488a7a OG |
67 | return 0; |
68 | ||
1679ae8f FK |
69 | err_create_wq: |
70 | kfd_topology_shutdown(); | |
5b5c4e40 EP |
71 | err_topology: |
72 | kfd_chardev_exit(); | |
4a488a7a | 73 | err_ioctl: |
c7651b73 | 74 | pr_err("KFD is disabled due to module initialization failure\n"); |
4a488a7a OG |
75 | return err; |
76 | } | |
77 | ||
04d5e276 | 78 | static void kfd_exit(void) |
4a488a7a | 79 | { |
20bc9f76 | 80 | kfd_cleanup_processes(); |
851a645e | 81 | kfd_debugfs_fini(); |
19f6d2a6 | 82 | kfd_process_destroy_wq(); |
de9f26bb | 83 | kfd_procfs_shutdown(); |
5b5c4e40 | 84 | kfd_topology_shutdown(); |
4a488a7a | 85 | kfd_chardev_exit(); |
4a488a7a OG |
86 | } |
87 | ||
63617d8b | 88 | int kgd2kfd_init(void) |
04d5e276 | 89 | { |
308176d6 | 90 | return kfd_init(); |
04d5e276 | 91 | } |
04d5e276 AL |
92 | |
93 | void kgd2kfd_exit(void) | |
94 | { | |
95 | kfd_exit(); | |
96 | } |