cpu.h revision 1.8
1 /* $NetBSD: cpu.h,v 1.8 2004/09/22 11:32:03 yamt 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 * from: @(#)cpu.h 7.7 (Berkeley) 6/27/91 37 * cpu.h,v 1.2 1993/05/22 07:58:17 cgd Exp 38 */ 39 40 /* 41 * Copyright (c) 1994 Gordon W. Ross 42 * Copyright (c) 1993 Adam Glass 43 * Copyright (c) 1988 University of Utah. 44 * 45 * This code is derived from software contributed to Berkeley by 46 * the Systems Programming Group of the University of Utah Computer 47 * Science Department. 48 * 49 * Redistribution and use in source and binary forms, with or without 50 * modification, are permitted provided that the following conditions 51 * are met: 52 * 1. Redistributions of source code must retain the above copyright 53 * notice, this list of conditions and the following disclaimer. 54 * 2. Redistributions in binary form must reproduce the above copyright 55 * notice, this list of conditions and the following disclaimer in the 56 * documentation and/or other materials provided with the distribution. 57 * 3. All advertising materials mentioning features or use of this software 58 * must display the following acknowledgement: 59 * This product includes software developed by the University of 60 * California, Berkeley and its contributors. 61 * 4. Neither the name of the University nor the names of its contributors 62 * may be used to endorse or promote products derived from this software 63 * without specific prior written permission. 64 * 65 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 66 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 67 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 68 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 69 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 70 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 71 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 72 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 73 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 74 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 75 * SUCH DAMAGE. 76 * 77 * from: Utah Hdr: cpu.h 1.16 91/03/25 78 * from: @(#)cpu.h 7.7 (Berkeley) 6/27/91 79 * cpu.h,v 1.2 1993/05/22 07:58:17 cgd Exp 80 */ 81 82 #ifndef _CPU_H_ 83 #define _CPU_H_ 84 85 #if defined(_KERNEL_OPT) 86 #include "opt_lockdebug.h" 87 #endif 88 89 #include <m68k/m68k.h> 90 91 #ifdef _KERNEL 92 93 /* 94 * External definitions unique to sun68k cpu support. 95 * These are the "public" declarations - those needed in 96 * machine-independent source code. The "private" ones 97 * are in machdep.h (used only inside sys/arch/sun{2,3,68k}). 98 * 99 * Note that the name of this file is NOT meant to imply 100 * that it has anything to do with Motorola CPU stuff. 101 * The name "cpu" is historical, and used in the common 102 * code to identify machine-dependent functions, etc. 103 */ 104 105 #include <sys/cpu_data.h> 106 struct cpu_info { 107 struct cpu_data ci_data; /* MI per-cpu data */ 108 }; 109 110 extern struct cpu_info cpu_info_store; 111 112 #define curcpu() (&cpu_info_store) 113 114 /* 115 * definitions of cpu-dependent requirements 116 * referenced in generic code 117 */ 118 #define cpu_number() 0 119 #define cpu_swapin(p) /* nothing */ 120 #define cpu_swapout(p) /* nothing */ 121 122 void cpu_proc_fork __P((struct proc *, struct proc *)); 123 124 /* 125 * Arguments to hardclock and gatherstats encapsulate the previous 126 * machine state in an opaque clockframe. On the sun68k, we use 127 * what the locore.s glue puts on the stack before calling C-code. 128 */ 129 struct clockframe { 130 u_int cf_regs[4]; /* d0,d1,a0,a1 */ 131 u_short cf_sr; /* sr at time of interrupt */ 132 u_long cf_pc; /* pc at time of interrupt */ 133 u_short cf_vo; /* vector offset (4-word frame) */ 134 } __attribute__((packed)); 135 136 #define CLKF_USERMODE(framep) (((framep)->cf_sr & PSL_S) == 0) 137 #define CLKF_BASEPRI(framep) (((framep)->cf_sr & PSL_IPL) == 0) 138 #define CLKF_PC(framep) ((framep)->cf_pc) 139 #if 0 140 /* We would like to do it this way... */ 141 #define CLKF_INTR(framep) (((framep)->cf_sr & PSL_M) == 0) 142 #else 143 /* but until we start using PSL_M, we have to do this instead */ 144 #define CLKF_INTR(framep) (0) /* XXX */ 145 #endif 146 147 extern int astpending; /* need to trap before returning to user mode */ 148 #define aston() (astpending = 1) 149 150 /* 151 * Preempt the current process if in interrupt from user mode, 152 * or after the current trap/syscall if in system mode. 153 */ 154 extern int want_resched; /* resched() was called */ 155 #define need_resched(ci) { want_resched = 1; aston(); } 156 157 /* 158 * Give a profiling tick to the current process when the user profiling 159 * buffer pages are invalid. On the sun68k, request an ast to send us 160 * through trap, marking the proc as needing a profiling tick. 161 */ 162 #define need_proftick(p) ((p)->p_flag |= P_OWEUPC, aston()) 163 164 /* 165 * Notify the current process (p) that it has a signal pending, 166 * process as soon as possible. 167 */ 168 #define signotify(p) aston() 169 170 #include <machine/intr.h> 171 extern void *softnet_cookie; 172 #define setsoftnet() softintr_schedule(softnet_cookie) 173 174 /* 175 * For some reason the sparc has this prototype in its machine/cpu.h, 176 * so for now we do the same. 177 */ 178 void fb_unblank __P((void)); 179 180 int cachectl1 __P((unsigned long, vaddr_t, size_t, struct proc *)); 181 182 /* 183 * This is needed by sun68k/isr.c. It's here for lack of a 184 * better place. 185 */ 186 void netintr __P((void)); 187 188 /* 189 * more stuff here for lack of a better place. 190 */ 191 struct pcb; 192 void proc_trampoline __P((void)); 193 void savectx __P((struct pcb *)); 194 void switch_exit __P((struct lwp *)); 195 void switch_lwp_exit __P((struct lwp *)); 196 197 #define M68K_VAC 198 199 #endif /* _KERNEL */ 200 201 #include <m68k/sysctl.h> 202 #endif /* _CPU_H_ */ 203
Indexes created Wed Sep 24 05:09:52 GMT 2025