sys/arch/alpha/include/userret.h

   1 /* $NetBSD: userret.h,v 1.7 2007/11/05 20:37:48 ad Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2000 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
   9  * NASA Ames Research Center, and by Charles M. Hannum.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  30  * POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 /*
  34  * Copyright (c) 1999 Christopher G. Demetriou.  All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  * 1. Redistributions of source code must retain the above copyright
  40  *    notice, this list of conditions and the following disclaimer.
  41  * 2. Redistributions in binary form must reproduce the above copyright
  42  *    notice, this list of conditions and the following disclaimer in the
  43  *    documentation and/or other materials provided with the distribution.
  44  * 3. All advertising materials mentioning features or use of this software
  45  *    must display the following acknowledgement:
  46  *      This product includes software developed by Christopher G. Demetriou
  47  *      for the NetBSD Project.
  48  * 4. The name of the author may not be used to endorse or promote products
  49  *    derived from this software without specific prior written permission
  50  *
  51  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  52  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  53  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  54  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  55  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  56  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  57  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  58  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  59  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  60  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61  */
  62
  63 /*
  64  * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
  65  * All rights reserved.
  66  *
  67  * Author: Chris G. Demetriou
  68  *
  69  * Permission to use, copy, modify and distribute this software and
  70  * its documentation is hereby granted, provided that both the copyright
  71  * notice and this permission notice appear in all copies of the
  72  * software, derivative works or modified versions, and any portions
  73  * thereof, and that both notices appear in supporting documentation.
  74  *
  75  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  76  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
  77  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  78  *
  79  * Carnegie Mellon requests users of this software to return to
  80  *
  81  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  82  *  School of Computer Science
  83  *  Carnegie Mellon University
  84  *  Pittsburgh PA 15213-3890
  85  *
  86  * any improvements or extensions that they make and grant Carnegie the
  87  * rights to redistribute these changes.
  88  */
  89
  90 #ifndef _ALPHA_USERRET_H_
  91 #define _ALPHA_USERRET_H_
  92
  93 #include <sys/userret.h>
  94
  95 /*
  96  * Define the code needed before returning to user mode, for
  97  * trap and syscall.
  98  */
  99 static __inline void
 100 userret(struct lwp *l)
 101 {
 102         struct proc *p = l->l_proc;
 103
 104         /* Do any deferred user pmap operations. */
 105         PMAP_USERRET(vm_map_pmap(&p->p_vmspace->vm_map));
 106
 107         /* Invoke MI userret code */
 108         mi_userret(l);
 109 }
 110
 111 #endif /* _ALPHA_USERRET_H_ */