97 lines · c
1// SPDX-License-Identifier: GPL-2.0 OR MIT2/*3 * Copyright 2014-2022 Advanced Micro Devices, Inc.4 *5 * Permission is hereby granted, free of charge, to any person obtaining a6 * copy of this software and associated documentation files (the "Software"),7 * to deal in the Software without restriction, including without limitation8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,9 * and/or sell copies of the Software, and to permit persons to whom the10 * Software is furnished to do so, subject to the following conditions:11 *12 * The above copyright notice and this permission notice shall be included in13 * all copies or substantial portions of the Software.14 *15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR19 * 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 OR21 * OTHER DEALINGS IN THE SOFTWARE.22 */23 24#include <linux/sched.h>25#include <linux/device.h>26#include "kfd_priv.h"27#include "amdgpu_amdkfd.h"28 29static int kfd_init(void)30{31 int err;32 33 /* Verify module parameters */34 if ((sched_policy < KFD_SCHED_POLICY_HWS) ||35 (sched_policy > KFD_SCHED_POLICY_NO_HWS)) {36 pr_err("sched_policy has invalid value\n");37 return -EINVAL;38 }39 40 /* Verify module parameters */41 if ((max_num_of_queues_per_device < 1) ||42 (max_num_of_queues_per_device >43 KFD_MAX_NUM_OF_QUEUES_PER_DEVICE)) {44 pr_err("max_num_of_queues_per_device must be between 1 to KFD_MAX_NUM_OF_QUEUES_PER_DEVICE\n");45 return -EINVAL;46 }47 48 err = kfd_chardev_init();49 if (err < 0)50 goto err_ioctl;51 52 err = kfd_topology_init();53 if (err < 0)54 goto err_topology;55 56 err = kfd_process_create_wq();57 if (err < 0)58 goto err_create_wq;59 60 /* Ignore the return value, so that we can continue61 * to init the KFD, even if procfs isn't craated62 */63 kfd_procfs_init();64 65 kfd_debugfs_init();66 67 return 0;68 69err_create_wq:70 kfd_topology_shutdown();71err_topology:72 kfd_chardev_exit();73err_ioctl:74 pr_err("KFD is disabled due to module initialization failure\n");75 return err;76}77 78static void kfd_exit(void)79{80 kfd_cleanup_processes();81 kfd_debugfs_fini();82 kfd_process_destroy_wq();83 kfd_procfs_shutdown();84 kfd_topology_shutdown();85 kfd_chardev_exit();86}87 88int kgd2kfd_init(void)89{90 return kfd_init();91}92 93void kgd2kfd_exit(void)94{95 kfd_exit();96}97