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