frame.h revision 1.27
1 /* $NetBSD: frame.h,v 1.27 2007/03/12 02:51:03 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1990, 1993 5 * The Regents of the University of California. 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 $Hdr: frame.h 1.8 92/12/20$ 36 * 37 * @(#)frame.h 8.1 (Berkeley) 6/10/93 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 $Hdr: frame.h 1.8 92/12/20$ 75 * 76 * @(#)frame.h 8.1 (Berkeley) 6/10/93 77 */ 78 79 #ifndef _M68K_FRAME_H_ 80 #define _M68K_FRAME_H_ 81 82 #include <m68k/cpuframe.h> 83 84 /* common frame size */ 85 #define CFSIZE (sizeof(struct frame) - sizeof(union F_u)) 86 #define NFMTSIZE 9 87 88 #define FMT0 0x0 89 #define FMT1 0x1 90 #define FMT2 0x2 91 #define FMT3 0x3 92 #define FMT4 0x4 93 #define FMT7 0x7 94 #define FMT8 0x8 95 #define FMT9 0x9 96 #define FMTA 0xA 97 #define FMTB 0xB 98 99 /* frame specific info sizes */ 100 #define FMT0SIZE 0 101 #define FMT1SIZE 0 102 #define FMT2SIZE sizeof(struct fmt2) 103 #define FMT3SIZE sizeof(struct fmt3) 104 #define FMT4SIZE sizeof(struct fmt4) 105 #define FMT7SIZE sizeof(struct fmt7) 106 #define FMT8SIZE sizeof(struct fmt8) 107 #define FMT9SIZE sizeof(struct fmt9) 108 #define FMTASIZE sizeof(struct fmtA) 109 #define FMTBSIZE sizeof(struct fmtB) 110 111 #define V_BUSERR 0x008 112 #define V_ADDRERR 0x00C 113 #define V_TRAP1 0x084 114 115 /* 68010 SSW bits */ 116 #define SSW1_RR 0x8000 117 #define SSW1_IF 0x2000 118 #define SSW1_DF 0x1000 119 #define SSW1_RM 0x0800 120 #define SSW1_HI 0x0400 121 #define SSW1_BX 0x0200 122 #define SSW1_RW 0x0100 123 #define SSW1_FCMASK 0x000F 124 125 /* 68020/68030 SSW bits */ 126 #define SSW_RC 0x2000 127 #define SSW_RB 0x1000 128 #define SSW_DF 0x0100 129 #define SSW_RM 0x0080 130 #define SSW_RW 0x0040 131 #define SSW_FCMASK 0x0007 132 133 /* 68040 SSW bits */ 134 #define SSW4_CP 0x8000 135 #define SSW4_CU 0x4000 136 #define SSW4_CT 0x2000 137 #define SSW4_CM 0x1000 138 #define SSW4_MA 0x0800 139 #define SSW4_ATC 0x0400 140 #define SSW4_LK 0x0200 141 #define SSW4_RW 0x0100 142 #define SSW4_WBSV 0x0080 /* really in WB status, not SSW */ 143 #define SSW4_SZMASK 0x0060 144 #define SSW4_SZLW 0x0000 145 #define SSW4_SZB 0x0020 146 #define SSW4_SZW 0x0040 147 #define SSW4_SZLN 0x0060 148 #define SSW4_TTMASK 0x0018 149 #define SSW4_TTNOR 0x0000 150 #define SSW4_TTM16 0x0008 151 #define SSW4_TMMASK 0x0007 152 #define SSW4_TMDCP 0x0000 153 #define SSW4_TMUD 0x0001 154 #define SSW4_TMUC 0x0002 155 #define SSW4_TMKD 0x0005 156 #define SSW4_TMKC 0x0006 157 158 /* 060 Fault Status Long Word (FPSP) */ 159 160 #define FSLW_MA 0x08000000 161 #define FSLW_LK 0x02000000 162 #define FSLW_RW 0x01800000 163 164 #define FSLW_RW_R 0x01000000 165 #define FSLW_RW_W 0x00800000 166 167 #define FSLW_SIZE 0x00600000 168 /* 169 * We better define the FSLW_SIZE values here, as the table given in the 170 * MC68060UM/AD rev. 0/1 p. 8-23 is wrong, and was corrected in the errata 171 * document. 172 */ 173 #define FSLW_SIZE_LONG 0x00000000 174 #define FSLW_SIZE_BYTE 0x00200000 175 #define FSLW_SIZE_WORD 0x00400000 176 #define FSLW_SIZE_MV16 0x00600000 177 178 #define FLSW_TT 0x00180000 179 #define FSLW_TM 0x00070000 180 #define FSLW_TM_SV 0x00040000 181 182 183 184 #define FSLW_IO 0x00008000 185 #define FSLW_PBE 0x00004000 186 #define FSLW_SBE 0x00002000 187 #define FSLW_PTA 0x00001000 188 #define FSLW_PTB 0x00000800 189 #define FSLW_IL 0x00000400 190 #define FSLW_PF 0x00000200 191 #define FSLW_SP 0x00000100 192 #define FSLW_WP 0x00000080 193 #define FSLW_TWE 0x00000040 194 #define FSLW_RE 0x00000020 195 #define FSLW_WE 0x00000010 196 #define FSLW_TTR 0x00000008 197 #define FSLW_BPE 0x00000004 198 #define FSLW_SEE 0x00000001 199 200 /* struct fpframe060 */ 201 #define FPF6_FMT_NULL 0x00 202 #define FPF6_FMT_IDLE 0x60 203 #define FPF6_FMT_EXCP 0xe0 204 205 #define FPF6_V_BSUN 0 206 #define FPF6_V_INEX12 1 207 #define FPF6_V_DZ 2 208 #define FPF6_V_UNFL 3 209 #define FPF6_V_OPERR 4 210 #define FPF6_V_OVFL 5 211 #define FPF6_V_SNAN 6 212 #define FPF6_V_UNSUP 7 213 214 #if defined(_KERNEL) 215 216 #include <m68k/signal.h> 217 218 #if defined(COMPAT_16) 219 /* 220 * Stack frame layout when delivering a signal. 221 */ 222 struct sigframe_sigcontext { 223 int sf_ra; /* handler return address */ 224 int sf_signum; /* signal number for handler */ 225 int sf_code; /* additional info for handler */ 226 struct sigcontext *sf_scp; /* context pointer for handler */ 227 struct sigcontext sf_sc; /* actual context */ 228 struct sigstate sf_state; /* state of the hardware */ 229 }; 230 #endif 231 232 struct sigframe_siginfo { 233 int sf_ra; /* return address for handler */ 234 int sf_signum; /* "signum" argument for handler */ 235 siginfo_t *sf_sip; /* "sip" argument for handler */ 236 ucontext_t *sf_ucp; /* "ucp" argument for handler */ 237 siginfo_t sf_si; /* actual saved siginfo */ 238 ucontext_t sf_uc; /* actual saved ucontext */ 239 }; 240 241 /* 242 * Utility function to relocate the initial frame, make room to restore an 243 * exception frame and reenter the syscall. 244 */ 245 void reenter_syscall(struct frame *, int) __attribute__((__noreturn__)); 246 247 /* 248 * Create an FPU "idle" frame for use by cpu_setmcontext() 249 */ 250 extern void m68k_make_fpu_idle_frame(void); 251 extern struct fpframe m68k_cached_fpu_idle_frame; 252 253 void *getframe(struct lwp *, int, int *); 254 void buildcontext(struct lwp *, void *, void *); 255 #ifdef COMPAT_16 256 void sendsig_sigcontext(const ksiginfo_t *, const sigset_t *); 257 #endif 258 259 #if defined(__mc68010__) 260 /* 261 * Restartable atomic sequence-cased compare-and-swap for locking 262 * primitives. We defined this here because it manipulates a 263 * "clockframe" as prepared by interrupt handlers. 264 */ 265 extern char _lock_cas_ras_start; 266 extern char _lock_cas_ras_end; 267 268 #define LOCK_CAS_CHECK(cfp) \ 269 do { \ 270 if ((cfp)->cf_pc < (u_long)&_lock_cas_ras_end && \ 271 (cfp)->cf_pc > (u_long)&_lock_cas_ras_start) { \ 272 (cfp)->cf_pc = (u_long)&_lock_cas_ras_start; \ 273 } \ 274 } while (/*CONSTCOND*/0) 275 #else 276 #define LOCK_CAS_CHECK(cfp) /* nothing */ 277 #endif /* __mc68010__ */ 278 279 #endif /* _KERNEL */ 280 281 #endif /* _M68K_FRAME_H_ */ 282
Indexes created Tue Sep 23 07:09:52 GMT 2025