56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
/*
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* Copyright (C) 2019 Intel Corporation.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <asm/per_cpu.h>
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#include <schedule.h>
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static int32_t sched_noop_init(struct sched_control *ctl)
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{
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struct sched_noop_control *noop_ctl = &per_cpu(sched_noop_ctl, ctl->pcpu_id);
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ctl->priv = noop_ctl;
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return 0;
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}
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static struct thread_object *sched_noop_pick_next(struct sched_control *ctl)
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{
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struct sched_noop_control *noop_ctl = (struct sched_noop_control *)ctl->priv;
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struct thread_object *next = NULL;
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if (noop_ctl->noop_thread_obj != NULL) {
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next = noop_ctl->noop_thread_obj;
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} else {
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next = &get_cpu_var(idle);
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}
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return next;
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}
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static void sched_noop_sleep(struct thread_object *obj)
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{
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struct sched_noop_control *noop_ctl = (struct sched_noop_control *)obj->sched_ctl->priv;
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if (noop_ctl->noop_thread_obj == obj) {
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noop_ctl->noop_thread_obj = NULL;
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}
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}
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static void sched_noop_wake(struct thread_object *obj)
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{
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struct sched_noop_control *noop_ctl = (struct sched_noop_control *)obj->sched_ctl->priv;
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if (noop_ctl->noop_thread_obj == NULL) {
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noop_ctl->noop_thread_obj = obj;
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}
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}
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struct acrn_scheduler sched_noop = {
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.name = "sched_noop",
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.init = sched_noop_init,
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.pick_next = sched_noop_pick_next,
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.sleep = sched_noop_sleep,
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.wake = sched_noop_wake,
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};
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