sys/arch/amiga/include/cpu.h

   1 /*      $NetBSD: cpu.h,v 1.73 2009/10/21 21:11:58 rmind Exp $   */
   2
   3 /*
   4  * Copyright (c) 1982, 1990 The Regents of the University of California.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley by
   8  * the Systems Programming Group of the University of Utah Computer
   9  * Science Department.
  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  * 3. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  * from: Utah $Hdr: cpu.h 1.16 91/03/25$
  36  *
  37  *      @(#)cpu.h       7.7 (Berkeley) 6/27/91
  38  */
  39 /*
  40  * Copyright (c) 1988 University of Utah.
  41  *
  42  * This code is derived from software contributed to Berkeley by
  43  * the Systems Programming Group of the University of Utah Computer
  44  * Science Department.
  45  *
  46  * Redistribution and use in source and binary forms, with or without
  47  * modification, are permitted provided that the following conditions
  48  * are met:
  49  * 1. Redistributions of source code must retain the above copyright
  50  *    notice, this list of conditions and the following disclaimer.
  51  * 2. Redistributions in binary form must reproduce the above copyright
  52  *    notice, this list of conditions and the following disclaimer in the
  53  *    documentation and/or other materials provided with the distribution.
  54  * 3. All advertising materials mentioning features or use of this software
  55  *    must display the following acknowledgement:
  56  *      This product includes software developed by the University of
  57  *      California, Berkeley and its contributors.
  58  * 4. Neither the name of the University nor the names of its contributors
  59  *    may be used to endorse or promote products derived from this software
  60  *    without specific prior written permission.
  61  *
  62  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  63  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  64  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  65  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  66  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  67  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  68  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  69  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  70  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  71  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  72  * SUCH DAMAGE.
  73  *
  74  * from: Utah $Hdr: cpu.h 1.16 91/03/25$
  75  *
  76  *      @(#)cpu.h       7.7 (Berkeley) 6/27/91
  77  */
  78 #ifndef _MACHINE_CPU_H_
  79 #define _MACHINE_CPU_H_
  80
  81 #if defined(_KERNEL)
  82
  83 /*
  84  * Exported definitions unique to amiga/68k cpu support.
  85  */
  86
  87 #if defined(_KERNEL_OPT)
  88 #include "opt_lockdebug.h"
  89 #endif
  90
  91 /*
  92  * Get common m68k CPU definitions.
  93  */
  94 #include <m68k/cpu.h>
  95 #define M68K_MMU_MOTOROLA
  96
  97 #include <sys/cpu_data.h>
  98 struct cpu_info {
  99         struct cpu_data ci_data;        /* MI per-cpu data */
 100         cpuid_t ci_cpuid;
 101         int     ci_mtx_count;
 102         int     ci_mtx_oldspl;
 103         int     ci_want_resched;
 104 };
 105
 106 extern struct cpu_info cpu_info_store;
 107
 108 #define curcpu()        (&cpu_info_store)
 109
 110 /*
 111  * definitions of cpu-dependent requirements
 112  * referenced in generic code
 113  */
 114 #define cpu_number()                    0
 115
 116 void    cpu_proc_fork(struct proc *, struct proc *);
 117
 118
 119 extern volatile unsigned int interrupt_depth;
 120 /*
 121  * Arguments to hardclock and gatherstats encapsulate the previous
 122  * machine state in an opaque clockframe.  One the hp300, we use
 123  * what the hardware pushes on an interrupt (frame format 0).
 124  */
 125 struct clockframe {
 126         u_short sr;             /* sr at time of interrupt */
 127         u_long  pc;             /* pc at time of interrupt */
 128         u_short vo;             /* vector offset (4-word frame) */
 129 };
 130
 131 #define CLKF_USERMODE(framep)   (((framep)->sr & PSL_S) == 0)
 132 #define CLKF_PC(framep)         ((framep)->pc)
 133 #define CLKF_INTR(framep)       (interrupt_depth > 1)
 134
 135
 136 /*
 137  * Preempt the current process if in interrupt from user mode,
 138  * or after the current trap/syscall if in system mode.
 139  */
 140 #define cpu_need_resched(ci,flags)      {ci->ci_want_resched = 1; setsoftast();}
 141
 142 /*
 143  * Give a profiling tick to the current process from the softclock
 144  * interrupt.  On hp300, request an ast to send us through trap(),
 145  * marking the proc as needing a profiling tick.
 146  */
 147 #define profile_tick(l, framep) ((l)->l_pflag |= LP_OWEUPC, setsoftast())
 148 #define cpu_need_proftick(l)    ((l)->l_pflag |= LP_OWEUPC, setsoftast())
 149
 150 /*
 151  * Notify the current process (p) that it has a signal pending,
 152  * process as soon as possible.
 153  */
 154 #define cpu_signotify(l)        setsoftast()
 155
 156 extern int astpending;          /* need trap before returning to user mode */
 157 #define setsoftast()            (astpending = 1)
 158
 159 /*
 160  * The rest of this should probably be moved to ../amiga/amigacpu.h,
 161  * although some of it could probably be put into generic 68k headers.
 162  */
 163
 164 /* values for machineid (happen to be AFF_* settings of AttnFlags) */
 165 #define AMIGA_68020     (1L<<1)
 166 #define AMIGA_68030     (1L<<2)
 167 #define AMIGA_68040     (1L<<3)
 168 #define AMIGA_68881     (1L<<4)
 169 #define AMIGA_68882     (1L<<5)
 170 #define AMIGA_FPU40     (1L<<6)
 171 #define AMIGA_68060     (1L<<7)
 172
 173 extern int machineid;
 174
 175 #endif /* _KERNEL */
 176
 177 /*
 178  * CTL_MACHDEP definitions.
 179  */
 180 #define CPU_CONSDEV     1       /* dev_t: console terminal device */
 181 #define CPU_MAXID       2       /* number of valid machdep ids */
 182
 183 #ifdef _KERNEL
 184 /*
 185  * Prototypes from amiga_init.c
 186  */
 187 void    *alloc_z2mem(long);
 188
 189 /*
 190  * Prototypes from autoconf.c
 191  */
 192 int     is_a1200(void);
 193 int     is_a3000(void);
 194 int     is_a4000(void);
 195 #ifdef DRACO
 196 #define is_draco() ((machineid >> 24) == 0x7d ? (machineid >> 16) & 0xff : 0)
 197 #endif
 198
 199 #ifdef DRACO
 200 /*
 201  * Prototypes from kbd.c
 202  */
 203 void    drkbdintr(void);
 204
 205 /*
 206  * Prototypes from drsc.c
 207  */
 208 void    drsc_handler(void);
 209 #endif
 210
 211 /*
 212  * Prototypes from locore.s
 213  */
 214 struct fpframe;
 215
 216 void    clearseg(vm_offset_t);
 217 void    doboot(void) __attribute__((__noreturn__));
 218 void    loadustp(int);
 219 #ifdef FPCOPROC
 220 void    m68881_save(struct fpframe *);
 221 void    m68881_restore(struct fpframe *);
 222 #endif
 223 void    physcopyseg(vm_offset_t, vm_offset_t);
 224 u_int   probeva(u_int, u_int);
 225
 226 /*
 227  * Prototypes from machdep.c
 228  */
 229 int     badaddr(void *);
 230 int     badbaddr(void *);
 231 void    bootsync(void);
 232
 233 /*
 234  * Prototypes from pmap.c:
 235  */
 236 void    pmap_bootstrap(vm_offset_t, vm_offset_t);
 237
 238 #endif /* _KERNEL */
 239
 240 #endif /* !_MACHINE_CPU_H_ */