sys/arch/newsmips/include/intr.h

   1 /*      $NetBSD: intr.h,v 1.23 2008/04/28 20:23:30 martin Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2000, 2001 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.
   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 _MACHINE_INTR_H_
  33 #define _MACHINE_INTR_H_
  34
  35 #define IPL_NONE        0       /* disable only this interrupt */
  36 #define IPL_SOFTCLOCK   1       /* clock software interrupts (SI 0) */
  37 #define IPL_SOFTBIO     1       /* bio software interrupts (SI 0) */
  38 #define IPL_SOFTNET     2       /* network software interrupts (SI 1) */
  39 #define IPL_SOFTSERIAL  2       /* serial software interrupts (SI 1) */
  40 #define IPL_VM          3
  41 #define IPL_SCHED       4       /* disable clock interrupts */
  42 #define IPL_HIGH        4       /* disable all interrupts */
  43
  44 #define _IPL_N          5
  45
  46 #define _IPL_SI0_FIRST  IPL_SOFTCLOCK
  47 #define _IPL_SI0_LAST   IPL_SOFTBIO
  48
  49 #define _IPL_SI1_FIRST  IPL_SOFTNET
  50 #define _IPL_SI1_LAST   IPL_SOFTSERIAL
  51
  52 #ifdef _KERNEL
  53 #ifndef _LOCORE
  54
  55 #include <sys/evcnt.h>
  56 #include <mips/locore.h>
  57
  58 extern const uint32_t ipl_sr_bits[_IPL_N];
  59
  60 #define spl0()          (void)_spllower(0)
  61 #define splx(s)         (void)_splset(s)
  62
  63 #define splsoft()       _splraise(ipl_sr_bits[IPL_SOFT])
  64
  65 typedef int ipl_t;
  66 typedef struct {
  67         ipl_t _sr;
  68 } ipl_cookie_t;
  69
  70 static inline ipl_cookie_t
  71 makeiplcookie(ipl_t ipl)
  72 {
  73
  74         return (ipl_cookie_t){._sr = ipl_sr_bits[ipl]};
  75 }
  76
  77 static inline int
  78 splraiseipl(ipl_cookie_t icookie)
  79 {
  80
  81         return _splraise(icookie._sr);
  82 }
  83
  84 #include <sys/spl.h>
  85
  86 struct newsmips_intrhand {
  87         LIST_ENTRY(newsmips_intrhand) ih_q;
  88         struct evcnt intr_count;
  89         int (*ih_func)(void *);
  90         void *ih_arg;
  91         u_int ih_level;
  92         u_int ih_mask;
  93         u_int ih_priority;
  94 };
  95
  96 struct newsmips_intr {
  97         LIST_HEAD(,newsmips_intrhand) intr_q;
  98 };
  99
 100 /*
 101  * Index into intrcnt[], which is defined in locore
 102  */
 103 #define SERIAL0_INTR    0
 104 #define SERIAL1_INTR    1
 105 #define SERIAL2_INTR    2
 106 #define LANCE_INTR      3
 107 #define SCSI_INTR       4
 108 #define ERROR_INTR      5
 109 #define HARDCLOCK_INTR  6
 110 #define FPU_INTR        7
 111 #define SLOT1_INTR      8
 112 #define SLOT2_INTR      9
 113 #define SLOT3_INTR      10
 114 #define FLOPPY_INTR     11
 115 #define STRAY_INTR      12
 116
 117 extern u_int intrcnt[];
 118
 119 /* handle i/o device interrupts */
 120 #ifdef news3400
 121 void news3400_intr(uint32_t, uint32_t, uint32_t, uint32_t);
 122 #endif
 123 #ifdef news5000
 124 void news5000_intr(uint32_t, uint32_t, uint32_t, uint32_t);
 125 #endif
 126 extern void (*hardware_intr)(uint32_t, uint32_t, uint32_t, uint32_t);
 127
 128 extern void (*enable_intr)(void);
 129 extern void (*disable_intr)(void);
 130 extern void (*enable_timer)(void);
 131
 132 #endif /* !_LOCORE */
 133 #endif /* _KERNEL */
 134 #endif /* _MACHINE_INTR_H_ */