77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
/*
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* Expose some of the kernel scheduler routines
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*
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* Portions of this code are copyright (c) 2023 Cypress Semiconductor Corporation
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*
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* Copyright (C) 1999-2018, Broadcom Corporation
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*
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* Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed to you
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* under the terms of the GNU General Public License version 2 (the "GPL"),
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* available at http://www.broadcom.com/licenses/GPLv2.php, with the
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* following added to such license:
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*
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* As a special exception, the copyright holders of this software give you
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* permission to link this software with independent modules, and to copy and
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* distribute the resulting executable under terms of your choice, provided that
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* you also meet, for each linked independent module, the terms and conditions of
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* the license of that module. An independent module is a module which is not
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* derived from this software. The special exception does not apply to any
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* modifications of the software.
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*
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* Notwithstanding the above, under no circumstances may you combine this
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* software in any way with any other Broadcom software provided under a license
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* other than the GPL, without Broadcom's express prior written consent.
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*
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*
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* <<Broadcom-WL-IPTag/Open:>>
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*
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* $Id: dhd_linux_sched.c 514727 2014-11-12 03:02:48Z $
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/version.h>
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0))
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#include <uapi/linux/sched/types.h>
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#else
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#include <linux/sched.h>
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#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0) */
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#include <typedefs.h>
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#include <linuxver.h>
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int setScheduler(struct task_struct *p, int policy, struct sched_param *param)
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{
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int rc = 0;
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 9, 0))
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switch (policy) {
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case SCHED_FIFO:
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if (param->sched_priority >= MAX_RT_PRIO/2)
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/* If the priority is MAX_RT_PRIO/2 or higher,
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* it is considered as high priority.
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* sched_priority of FIFO task dosen't
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* exceed MAX_RT_PRIO/2.
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*/
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sched_set_fifo(p);
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else
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/* For when you don't much care about FIFO,
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* but want to be above SCHED_NORMAL.
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*/
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sched_set_fifo_low(p);
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break;
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case SCHED_NORMAL:
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sched_set_normal(p, PRIO_TO_NICE(p->static_prio));
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break;
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}
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#else
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rc = sched_setscheduler(p, policy, param);
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#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(5, 9, 0) */
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return rc;
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}
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int get_scheduler_policy(struct task_struct *p)
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{
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int rc = SCHED_NORMAL;
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rc = p->policy;
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return rc;
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}
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