cpu.h revision 1.2
1 /* $NetBSD: cpu.h,v 1.2 1999/09/14 10:22:35 tsubai Exp $ */ 2 3 /*- 4 * Copyright (c) 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 * William Jolitz. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)cpu.h 5.4 (Berkeley) 5/9/91 39 */ 40 41 /* 42 * SH3 Version 43 * 44 * T.Horiuchi Brains Corp. 5/22/98 45 */ 46 47 #ifndef _SH3_CPU_H_ 48 #define _SH3_CPU_H_ 49 50 /* 51 * Definitions unique to sh3 cpu support. 52 */ 53 #include <machine/psl.h> 54 #include <machine/frame.h> 55 #include <machine/segments.h> 56 57 /* 58 * definitions of cpu-dependent requirements 59 * referenced in generic code 60 */ 61 #define cpu_swapin(p) /* nothing */ 62 #define cpu_wait(p) /* nothing */ 63 #define cpu_number() 0 64 65 /* 66 * Arguments to hardclock, softclock and statclock 67 * encapsulate the previous machine state in an opaque 68 * clockframe; for now, use generic intrframe. 69 * 70 * XXX intrframe has a lot of gunk we don't need. 71 */ 72 #define clockframe intrframe 73 74 #if 1 75 #define CLKF_USERMODE(frame) (!KERNELMODE((frame)->if_r15)) 76 #else 77 #define CLKF_USERMODE(frame) USERMODE((frame)->if_spc, (frame)->if_ssr) 78 #endif 79 #if 0 80 #define CLKF_BASEPRI(frame) ((frame)->if_pri == 0) 81 #else 82 /* XXX we should fix this */ 83 #define CLKF_BASEPRI(frame) (0) 84 #endif 85 #define CLKF_PC(frame) ((frame)->if_spc) 86 #define CLKF_INTR(frame) (0) /* XXX should have an interrupt stack */ 87 88 /* 89 * Preempt the current process if in interrupt from user mode, 90 * or after the current trap/syscall if in system mode. 91 */ 92 int want_resched; /* resched() was called */ 93 #define need_resched() (want_resched = 1, setsoftast()) 94 95 /* 96 * Give a profiling tick to the current process when the user profiling 97 * buffer pages are invalid. On the i386, request an ast to send us 98 * through trap(), marking the proc as needing a profiling tick. 99 */ 100 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, setsoftast()) 101 102 /* 103 * Notify the current process (p) that it has a signal pending, 104 * process as soon as possible. 105 */ 106 #define signotify(p) setsoftast() 107 108 /* 109 * We need a machine-independent name for this. 110 */ 111 #define DELAY(x) delay(x) 112 void delay __P((int)); 113 114 /* 115 * Logical address space of SH3 CPU. 116 */ 117 #define SH3_P0SEG_BASE 0x00000000 118 #define SH3_P0SEG_END 0x7fffffff 119 #define SH3_P1SEG_BASE 0x80000000 /* pa == va */ 120 #define SH3_P1SEG_END 0x9fffffff 121 #define SH3_P2SEG_BASE 0xa0000000 /* pa == va, non-cacheable */ 122 #define SH3_P2SEG_END 0xbfffffff 123 #define SH3_P3SEG_BASE 0xc0000000 124 #define SH3_P3SEG_END 0xdfffffff 125 #define SH3_P4SEG_BASE 0xe0000000 126 #define SH3_P4SEG_END 0xffffffff 127 128 /* 129 * pull in #defines for kinds of processors 130 */ 131 #include <machine/cputypes.h> 132 133 134 #ifdef _KERNEL 135 extern int cpu; 136 extern int cpu_class; 137 extern int cpu_feature; 138 extern int cpuid_level; 139 extern struct cpu_nocpuid_nameclass sh3_nocpuid_cpus[]; 140 extern struct cpu_cpuid_nameclass sh3_cpuid_cpus[]; 141 142 /* autoconf.c */ 143 void configure __P((void)); 144 145 /* machdep.c */ 146 void delay __P((int)); 147 void dumpconf __P((void)); 148 void cpu_reset __P((void)); 149 150 /* locore.s */ 151 struct region_descriptor; 152 void lgdt __P((struct region_descriptor *)); 153 void fillw __P((short, void *, size_t)); 154 void 155 bcopyb __P((caddr_t from, caddr_t to, size_t len)); 156 void 157 bcopyw __P((caddr_t from, caddr_t to, size_t len)); 158 void 159 setPageDirReg __P((int pgdir)); 160 161 162 struct pcb; 163 void savectx __P((struct pcb *)); 164 void switch_exit __P((struct proc *)); 165 void proc_trampoline __P((void)); 166 167 /* clock.c */ 168 void startrtclock __P((void)); 169 170 /* npx.c */ 171 void npxdrop __P((void)); 172 void npxsave __P((void)); 173 174 /* vm_machdep.c */ 175 int kvtop __P((caddr_t)); 176 177 #ifdef MATH_EMULATE 178 /* math_emulate.c */ 179 int math_emulate __P((struct trapframe *)); 180 #endif 181 182 183 /* trap.c */ 184 void child_return __P((struct proc *, int, int, int, struct trapframe)); 185 186 #endif /* _KERNEL */ 187 188 /* 189 * CTL_MACHDEP definitions. 190 */ 191 #define CPU_CONSDEV 1 /* dev_t: console terminal device */ 192 #define CPU_NKPDE 2 /* int: number of kernel PDEs */ 193 #define CPU_BOOTED_KERNEL 3 /* string: booted kernel name */ 194 #define CPU_SETPRIVPROC 4 /* set current proc to piviledged proc 195 */ 196 #define CPU_DEBUGMODE 5 /* set debug mode */ 197 #define CPU_LOADANDRESET 6 /* load kernel image and reset */ 198 #define CPU_MAXID 7 /* number of valid machdep ids */ 199 200 #define CTL_MACHDEP_NAMES { \ 201 { 0, 0 }, \ 202 { "console_device", CTLTYPE_STRUCT }, \ 203 { "nkpde", CTLTYPE_INT }, \ 204 { "booted_kernel", CTLTYPE_STRING }, \ 205 { "set_priv_proc", CTLTYPE_INT }, \ 206 { "debug_mode", CTLTYPE_INT }, \ 207 { "load_and_reset", CTLTYPE_INT }, \ 208 } 209 210 #include <machine/sh3.h> 211 212 213 #endif /* !_SH3_CPU_H_ */ 214
Indexes created Thu Sep 25 16:09:42 GMT 2025