sys/arch/sparc/include/intr.h

   1 /*      $NetBSD: intr.h,v 1.10 2007/12/03 15:34:21 ad Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Paul Kranenburg.
   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 /*
  33  * Device class interrupt levels
  34  * Note: sun4 and sun4c hardware only has software interrupt available
  35  *       on level 1, 4 or 6. This limits the choice of the various
  36  *       IPL_SOFT* symbols to one of those three values.
  37  */
  38 #define IPL_NONE        0       /* nothing */
  39 #define IPL_SOFTCLOCK   1       /* timeouts */
  40 #define IPL_SOFTNET     1       /* protocol stack */
  41 #define IPL_SOFTBIO     1       /* block I/O */
  42 #define IPL_SOFTAUDIO   4       /* second-level audio */
  43 #define IPL_SOFTFDC     4       /* second-level floppy */
  44 #define IPL_SOFTSERIAL  6       /* serial */
  45 #define IPL_VM          7       /* memory allocation */
  46 #define IPL_SCHED       11      /* scheduler */
  47 #define IPL_HIGH        15      /* everything */
  48
  49 /*
  50  * fd hardware, ts102, and tadpole microcontoller interrupts are at level 11
  51  */
  52
  53 #define IPL_FD          IPL_SCHED
  54 #define IPL_TS102       IPL_SCHED
  55
  56 /*
  57  * zs hardware interrupts are at level 12
  58  * su (com) hardware interrupts are at level 13
  59  * IPL_SERIAL must protect them all.
  60  */
  61
  62 #define IPL_ZS          IPL_HIGH
  63
  64 #if defined(_KERNEL) && !defined(_LOCORE)
  65 void *
  66 sparc_softintr_establish(int level, void (*fun)(void *), void *arg);
  67
  68 void
  69 sparc_softintr_disestablish(void *cookie);
  70
  71 /*
  72  * NB that sparc_softintr_schedule() casts the cookie to an int *.
  73  * This is to get the sic_pilreq member of the softintr_cookie
  74  * structure, which is otherwise internal to intr.c.
  75  */
  76 #if defined(SUN4M) || defined(SUN4D)
  77 extern void     raise(int, int);
  78 #if !(defined(SUN4) || defined(SUN4C))
  79 #define sparc_softintr_schedule(cookie) raise(0, *((int *) (cookie)))
  80 #else /* both defined */
  81 #define sparc_softintr_schedule(cookie) do {            \
  82         if (CPU_ISSUN4M || CPU_ISSUN4D)         \
  83                 raise(0, *((int *)(cookie)));   \
  84         else                                    \
  85                 ienab_bis(*((int *)(cookie)));  \
  86 } while (0)
  87 #endif  /* SUN4  || SUN4C */
  88 #else   /* SUN4M || SUN4D */
  89 #define sparc_softintr_schedule(cookie) ienab_bis(*((int *) (cookie)))
  90 #endif  /* SUN4M || SUN4D */
  91
  92 #if 0
  93 void sparc_softintr_schedule(void *cookie);
  94 #endif
  95 #endif /* KERNEL && !_LOCORE */