frame.h revision 1.20
1 /* $NetBSD: frame.h,v 1.20 2003/08/07 16:28:13 agc 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 struct frame { 83 struct trapframe { 84 int tf_regs[16]; 85 short tf_pad; 86 short tf_stackadj; 87 u_short tf_sr; 88 u_int tf_pc; 89 u_short tf_format:4, 90 tf_vector:12; 91 } __attribute__((packed)) F_t; 92 union F_u { 93 struct fmt2 { 94 u_int f_iaddr; 95 } F_fmt2; 96 97 struct fmt3 { 98 u_int f_ea; 99 } F_fmt3; 100 101 struct fmt4 { 102 u_int f_fa; 103 u_int f_fslw; 104 /* for 060FP type 4 FP disabled frames: */ 105 #define f_fea f_fa 106 #define f_pcfi f_fslw 107 } F_fmt4; 108 109 struct fmt7 { 110 u_int f_ea; 111 u_short f_ssw; 112 u_short f_wb3s, f_wb2s, f_wb1s; 113 u_int f_fa; 114 u_int f_wb3a, f_wb3d; 115 u_int f_wb2a, f_wb2d; 116 u_int f_wb1a, f_wb1d; 117 #define f_pd0 f_wb1d 118 u_int f_pd1, f_pd2, f_pd3; 119 } F_fmt7; 120 121 struct fmt8 { 122 u_short f_ssw; 123 u_int f_accaddr; 124 u_short f_ir0; 125 u_short f_dob; 126 u_short f_ir1; 127 u_short f_dib; 128 u_short f_ir2; 129 u_short f_irc; 130 u_short f_maskpc; 131 u_short f_iregs[15]; 132 } __attribute__((packed)) F_fmt8; 133 134 struct fmt9 { 135 u_int f_iaddr; 136 u_short f_iregs[4]; 137 } F_fmt9; 138 139 struct fmtA { 140 u_short f_ir0; 141 u_short f_ssw; 142 u_short f_ipsc; 143 u_short f_ipsb; 144 u_int f_dcfa; 145 u_short f_ir1, f_ir2; 146 u_int f_dob; 147 u_short f_ir3, f_ir4; 148 } F_fmtA; 149 150 struct fmtB { 151 u_short f_ir0; 152 u_short f_ssw; 153 u_short f_ipsc; 154 u_short f_ipsb; 155 u_int f_dcfa; 156 u_short f_ir1, f_ir2; 157 u_int f_dob; 158 u_short f_ir3, f_ir4; 159 u_short f_ir5, f_ir6; 160 u_int f_sba; 161 u_short f_ir7, f_ir8; 162 u_int f_dib; 163 u_short f_iregs[22]; 164 } F_fmtB; 165 } F_u; 166 }; 167 168 #define f_regs F_t.tf_regs 169 #define f_pad F_t.tf_pad 170 #define f_stackadj F_t.tf_stackadj 171 #define f_sr F_t.tf_sr 172 #define f_pc F_t.tf_pc 173 #define f_format F_t.tf_format 174 #define f_vector F_t.tf_vector 175 #define f_fmt2 F_u.F_fmt2 176 #define f_fmt3 F_u.F_fmt3 177 #define f_fmt4 F_u.F_fmt4 178 #define f_fmt7 F_u.F_fmt7 179 #define f_fmt8 F_u.F_fmt8 180 #define f_fmt9 F_u.F_fmt9 181 #define f_fmtA F_u.F_fmtA 182 #define f_fmtB F_u.F_fmtB 183 184 struct switchframe { 185 u_int sf_pc; 186 }; 187 188 /* common frame size */ 189 #define CFSIZE (sizeof(struct frame) - sizeof(union F_u)) 190 #define NFMTSIZE 9 191 192 #define FMT0 0x0 193 #define FMT1 0x1 194 #define FMT2 0x2 195 #define FMT3 0x3 196 #define FMT4 0x4 197 #define FMT7 0x7 198 #define FMT8 0x8 199 #define FMT9 0x9 200 #define FMTA 0xA 201 #define FMTB 0xB 202 203 /* frame specific info sizes */ 204 #define FMT0SIZE 0 205 #define FMT1SIZE 0 206 #define FMT2SIZE sizeof(struct fmt2) 207 #define FMT3SIZE sizeof(struct fmt3) 208 #define FMT4SIZE sizeof(struct fmt4) 209 #define FMT7SIZE sizeof(struct fmt7) 210 #define FMT8SIZE sizeof(struct fmt8) 211 #define FMT9SIZE sizeof(struct fmt9) 212 #define FMTASIZE sizeof(struct fmtA) 213 #define FMTBSIZE sizeof(struct fmtB) 214 215 #define V_BUSERR 0x008 216 #define V_ADDRERR 0x00C 217 #define V_TRAP1 0x084 218 219 /* 68010 SSW bits */ 220 #define SSW1_RR 0x8000 221 #define SSW1_IF 0x2000 222 #define SSW1_DF 0x1000 223 #define SSW1_RM 0x0800 224 #define SSW1_HI 0x0400 225 #define SSW1_BX 0x0200 226 #define SSW1_RW 0x0100 227 #define SSW1_FCMASK 0x000F 228 229 /* 68020/68030 SSW bits */ 230 #define SSW_RC 0x2000 231 #define SSW_RB 0x1000 232 #define SSW_DF 0x0100 233 #define SSW_RM 0x0080 234 #define SSW_RW 0x0040 235 #define SSW_FCMASK 0x0007 236 237 /* 68040 SSW bits */ 238 #define SSW4_CP 0x8000 239 #define SSW4_CU 0x4000 240 #define SSW4_CT 0x2000 241 #define SSW4_CM 0x1000 242 #define SSW4_MA 0x0800 243 #define SSW4_ATC 0x0400 244 #define SSW4_LK 0x0200 245 #define SSW4_RW 0x0100 246 #define SSW4_WBSV 0x0080 /* really in WB status, not SSW */ 247 #define SSW4_SZMASK 0x0060 248 #define SSW4_SZLW 0x0000 249 #define SSW4_SZB 0x0020 250 #define SSW4_SZW 0x0040 251 #define SSW4_SZLN 0x0060 252 #define SSW4_TTMASK 0x0018 253 #define SSW4_TTNOR 0x0000 254 #define SSW4_TTM16 0x0008 255 #define SSW4_TMMASK 0x0007 256 #define SSW4_TMDCP 0x0000 257 #define SSW4_TMUD 0x0001 258 #define SSW4_TMUC 0x0002 259 #define SSW4_TMKD 0x0005 260 #define SSW4_TMKC 0x0006 261 262 /* 060 Fault Status Long Word (FPSP) */ 263 264 #define FSLW_MA 0x08000000 265 #define FSLW_LK 0x02000000 266 #define FSLW_RW 0x01800000 267 268 #define FSLW_RW_R 0x01000000 269 #define FSLW_RW_W 0x00800000 270 271 #define FSLW_SIZE 0x00600000 272 /* 273 * We better define the FSLW_SIZE values here, as the table given in the 274 * MC68060UM/AD rev. 0/1 p. 8-23 is wrong, and was corrected in the errata 275 * document. 276 */ 277 #define FSLW_SIZE_LONG 0x00000000 278 #define FSLW_SIZE_BYTE 0x00200000 279 #define FSLW_SIZE_WORD 0x00400000 280 #define FSLW_SIZE_MV16 0x00600000 281 282 #define FLSW_TT 0x00180000 283 #define FSLW_TM 0x00070000 284 #define FSLW_TM_SV 0x00040000 285 286 287 288 #define FSLW_IO 0x00008000 289 #define FSLW_PBE 0x00004000 290 #define FSLW_SBE 0x00002000 291 #define FSLW_PTA 0x00001000 292 #define FSLW_PTB 0x00000800 293 #define FSLW_IL 0x00000400 294 #define FSLW_PF 0x00000200 295 #define FSLW_SP 0x00000100 296 #define FSLW_WP 0x00000080 297 #define FSLW_TWE 0x00000040 298 #define FSLW_RE 0x00000020 299 #define FSLW_WE 0x00000010 300 #define FSLW_TTR 0x00000008 301 #define FSLW_BPE 0x00000004 302 #define FSLW_SEE 0x00000001 303 304 struct fpframe { 305 union FPF_u1 { 306 u_int FPF_null; 307 struct { 308 u_char FPF_version; 309 u_char FPF_fsize; 310 u_short FPF_res1; 311 } FPF_nonnull; 312 } FPF_u1; 313 union FPF_u2 { 314 struct fpidle { 315 u_short fpf_ccr; 316 u_short fpf_res2; 317 u_int fpf_iregs1[8]; 318 u_int fpf_xops[3]; 319 u_int fpf_opreg; 320 u_int fpf_biu; 321 } FPF_idle; 322 323 struct fpbusy { 324 u_int fpf_iregs[53]; 325 } FPF_busy; 326 327 struct fpunimp { 328 u_int fpf_state[10]; 329 } FPF_unimp; 330 } FPF_u2; 331 u_int fpf_regs[8*3]; 332 u_int fpf_fpcr; 333 u_int fpf_fpsr; 334 u_int fpf_fpiar; 335 }; 336 337 #define fpf_null FPF_u1.FPF_null 338 #define fpf_version FPF_u1.FPF_nonnull.FPF_version 339 #define fpf_fsize FPF_u1.FPF_nonnull.FPF_fsize 340 #define fpf_res1 FPF_u1.FPF_nonnull.FPF_res1 341 #define fpf_idle FPF_u2.FPF_idle 342 #define fpf_busy FPF_u2.FPF_busy 343 #define fpf_unimp FPF_u2.FPF_unimp 344 345 /* 346 * This is incompatible with the earlier one; expecially, an earlier frame 347 * must not be FRESTOREd on a 060 or vv, because a frame error exception is 348 * not guaranteed. 349 */ 350 351 352 struct fpframe060 { 353 u_short fpf6_excp_exp; 354 u_char fpf6_frmfmt; 355 #define FPF6_FMT_NULL 0x00 356 #define FPF6_FMT_IDLE 0x60 357 #define FPF6_FMT_EXCP 0xe0 358 359 u_char fpf6_v; 360 #define FPF6_V_BSUN 0 361 #define FPF6_V_INEX12 1 362 #define FPF6_V_DZ 2 363 #define FPF6_V_UNFL 3 364 #define FPF6_V_OPERR 4 365 #define FPF6_V_OVFL 5 366 #define FPF6_V_SNAN 6 367 #define FPF6_V_UNSUP 7 368 369 u_long fpf6_upper, fpf6_lower; 370 }; 371 372 #if defined(_KERNEL) 373 /* 374 * Utility function to relocate the initial frame, make room to restore an 375 * exception frame and reenter the syscall. 376 */ 377 void reenter_syscall __P((struct frame *, int)) __attribute__((__noreturn__)); 378 379 /* 380 * Create an FPU "idle" frame for use by cpu_setmcontext() 381 */ 382 extern void m68k_make_fpu_idle_frame(void); 383 extern struct fpframe m68k_cached_fpu_idle_frame; 384 #endif /* _KERNEL */ 385 386 #endif /* _M68K_FRAME_H_ */ 387
Indexes created Tue Sep 23 14:10:03 GMT 2025