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// SPDX-License-Identifier: GPL-2.0 OR MIT
/*
* Copyright 2014-2022 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include <linux/sched.h>
#include <linux/device.h>
#include "kfd_priv.h"
#include "amdgpu_amdkfd.h"
static int kfd_init(void)
{
int err;
/* Verify module parameters */
if ((sched_policy < KFD_SCHED_POLICY_HWS) ||
(sched_policy > KFD_SCHED_POLICY_NO_HWS)) {
pr_err("sched_policy has invalid value\n");
return -EINVAL;
}
/* Verify module parameters */
if ((max_num_of_queues_per_device < 1) ||
(max_num_of_queues_per_device >
KFD_MAX_NUM_OF_QUEUES_PER_DEVICE)) {
pr_err("max_num_of_queues_per_device must be between 1 to KFD_MAX_NUM_OF_QUEUES_PER_DEVICE\n");
return -EINVAL;
}
err = kfd_chardev_init();
if (err < 0)
goto err_ioctl;
err = kfd_topology_init();
if (err < 0)
goto err_topology;
err = kfd_process_create_wq();
if (err < 0)
goto err_create_wq;
/* Ignore the return value, so that we can continue
* to init the KFD, even if procfs isn't craated
*/
kfd_procfs_init();
kfd_debugfs_init();
return 0;
err_create_wq:
kfd_topology_shutdown();
err_topology:
kfd_chardev_exit();
err_ioctl:
pr_err("KFD is disabled due to module initialization failure\n");
return err;
}
static void kfd_exit(void)
{
kfd_debugfs_fini();
kfd_process_destroy_wq();
kfd_procfs_shutdown();
kfd_topology_shutdown();
kfd_chardev_exit();
}
int kgd2kfd_init(void)
{
return kfd_init();
}
void kgd2kfd_exit(void)
{
kfd_exit();
}
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