sys/arch/mvme68k/include/intr.h

   1 /*      $NetBSD: intr.h,v 1.19 2008/06/26 02:52:29 isaki 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 and Steve C. Woodford.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _MVME68K_INTR_H
  33 #define _MVME68K_INTR_H
  34
  35 #include <machine/psl.h>
  36
  37 #define IPL_NONE        0       /* disable only this interrupt */
  38 #define IPL_SOFTCLOCK   1       /* clock software interrupts */
  39 #define IPL_SOFTBIO     2       /* block software interrupts */
  40 #define IPL_SOFTNET     3       /* network software interrupts */
  41 #define IPL_SOFTSERIAL  4       /* serial software interrupts */
  42 #define IPL_VM          5
  43 #define IPL_SCHED       6
  44 #define IPL_HIGH        7
  45 #define NIPL            8
  46
  47 #ifdef _KERNEL
  48 #define spl0()                  _spl0()
  49 #define splsoftclock()          splraise1()
  50 #define splsoftbio()            splraise1()
  51 #define splsoftnet()            splraise1()
  52 #define splsoftserial()         splraise1()
  53 #define splvm()                 splraise3()
  54 #define splsched()              spl7()
  55 #define splhigh()               spl7()
  56
  57 #ifndef _LOCORE
  58
  59 extern const uint16_t ipl2psl_table[NIPL];
  60
  61 typedef int ipl_t;
  62 typedef struct {
  63         uint16_t _psl;
  64 } ipl_cookie_t;
  65
  66 static inline ipl_cookie_t
  67 makeiplcookie(ipl_t ipl)
  68 {
  69
  70         return (ipl_cookie_t){._psl = ipl2psl_table[ipl]};
  71 }
  72
  73 static inline int
  74 splraiseipl(ipl_cookie_t icookie)
  75 {
  76
  77         return _splraise(icookie._psl);
  78 }
  79
  80 static __inline void
  81 splx(int sr)
  82 {
  83
  84         __asm volatile("movw %0,%%sr" : : "di" (sr));
  85 }
  86
  87 #endif /* !_LOCORE */
  88 #endif /* _KERNEL */
  89
  90 #endif /* _MVME68K_INTR_H */