diff options
Diffstat (limited to 'sys/arch/mvme88k/m88k/locore2.c')
| -rw-r--r-- | sys/arch/mvme88k/m88k/locore2.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/sys/arch/mvme88k/m88k/locore2.c b/sys/arch/mvme88k/m88k/locore2.c new file mode 100644 index 00000000000..e8e6a57e86f --- /dev/null +++ b/sys/arch/mvme88k/m88k/locore2.c @@ -0,0 +1,99 @@ +/* + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This software was developed by the Computer Systems Engineering group + * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and + * contributed to Berkeley. + * + * All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Lawrence Berkeley Laboratory. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)locore2.c 8.4 (Berkeley) 12/10/93 + * + * from: Header: locore2.c,v 1.8 92/11/26 03:05:01 mccanne Exp (LBL) + * $Id: locore2.c,v 1.1 1995/10/18 10:54:27 deraadt Exp $ + */ + +/* + * Primitives which are in locore.s on other machines, + * but which have no reason to be assembly-coded on SPARC. + */ + +#include <sys/param.h> +#include <sys/proc.h> +#include <sys/resourcevar.h> + +int whichqs; + +/* + * Put process p on the run queue indicated by its priority. + * Calls should be made at splstatclock(), and p->p_stat should be SRUN. + */ +void +setrunqueue(p) + register struct proc *p; +{ + register struct prochd *q; + register struct proc *oldlast; + register int which = p->p_priority >> 2; + + if (p->p_back != NULL) + panic("setrunqueue"); + q = &qs[which]; + whichqs |= 1 << which; + p->p_forw = (struct proc *)q; + p->p_back = oldlast = q->ph_rlink; + q->ph_rlink = p; + oldlast->p_forw = p; +} + +/* + * Remove process p from its run queue, which should be the one + * indicated by its priority. Calls should be made at splstatclock(). + */ +remrq(p) + register struct proc *p; +{ + register int which = p->p_priority >> 2; + register struct prochd *q; + + if ((whichqs & (1 << which)) == 0) + panic("remrq"); + p->p_forw->p_back = p->p_back; + p->p_back->p_forw = p->p_forw; + p->p_back = NULL; + q = &qs[which]; + if (q->ph_link == (struct proc *)q) + whichqs &= ~(1 << which); +} |