51d643caa6
to kproc_xxx as they actually make whole processes. Thos makes way for us to add REAL kthread_create() and friends that actually make theads. it turns out that most of these calls actually end up being moved back to the thread version when it's added. but we need to make this cosmetic change first. I'd LOVE to do this rename in 7.0 so that we can eventually MFC the new kthread_xxx() calls.
88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
/*-
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* Copyright (C) 2000-2004 The FreeBSD Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/kthread.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/proc.h>
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#include <sys/resourcevar.h>
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#include <sys/sched.h>
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#include <sys/unistd.h>
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#ifdef SMP
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#include <sys/smp.h>
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#endif
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static void idle_setup(void *dummy);
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SYSINIT(idle_setup, SI_SUB_SCHED_IDLE, SI_ORDER_FIRST, idle_setup, NULL)
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/*
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* Set up per-cpu idle process contexts. The AP's shouldn't be running or
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* accessing their idle processes at this point, so don't bother with
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* locking.
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*/
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static void
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idle_setup(void *dummy)
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{
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#ifdef SMP
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struct pcpu *pc;
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#endif
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struct proc *p;
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struct thread *td;
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int error;
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#ifdef SMP
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SLIST_FOREACH(pc, &cpuhead, pc_allcpu) {
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error = kproc_create(sched_idletd, NULL, &p,
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RFSTOPPED | RFHIGHPID, 0, "idle: cpu%d", pc->pc_cpuid);
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pc->pc_idlethread = FIRST_THREAD_IN_PROC(p);
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#else
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error = kproc_create(sched_idletd, NULL, &p,
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RFSTOPPED | RFHIGHPID, 0, "idle");
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PCPU_SET(idlethread, FIRST_THREAD_IN_PROC(p));
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#endif
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if (error)
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panic("idle_setup: kproc_create error %d\n", error);
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PROC_LOCK(p);
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p->p_flag |= P_NOLOAD;
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td = FIRST_THREAD_IN_PROC(p);
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thread_lock(td);
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TD_SET_CAN_RUN(td);
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td->td_flags |= TDF_IDLETD;
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sched_class(td, PRI_IDLE);
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sched_prio(td, PRI_MAX_IDLE);
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thread_unlock(td);
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PROC_UNLOCK(p);
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#ifdef SMP
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}
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#endif
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}
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