Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/include/asm-mips64/sgiarcs.h
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1 /* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * ARC firmware interface defines. 7 * 8 * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) 9 * Copyright (C) 1999, 2001 Ralf Baechle (ralf@gnu.org) 10 * Copyright (C) 1999 Silicon Graphics, Inc. 11 */ 12 #ifndef _ASM_SGIARCS_H 13 #define _ASM_SGIARCS_H 14 15 #include <linux/config.h> 16 #include <asm/types.h> 17 #include <asm/arc/types.h> 18 19 /* Various ARCS error codes. */ 20 #define PROM_ESUCCESS 0x00 21 #define PROM_E2BIG 0x01 22 #define PROM_EACCESS 0x02 23 #define PROM_EAGAIN 0x03 24 #define PROM_EBADF 0x04 25 #define PROM_EBUSY 0x05 26 #define PROM_EFAULT 0x06 27 #define PROM_EINVAL 0x07 28 #define PROM_EIO 0x08 29 #define PROM_EISDIR 0x09 30 #define PROM_EMFILE 0x0a 31 #define PROM_EMLINK 0x0b 32 #define PROM_ENAMETOOLONG 0x0c 33 #define PROM_ENODEV 0x0d 34 #define PROM_ENOENT 0x0e 35 #define PROM_ENOEXEC 0x0f 36 #define PROM_ENOMEM 0x10 37 #define PROM_ENOSPC 0x11 38 #define PROM_ENOTDIR 0x12 39 #define PROM_ENOTTY 0x13 40 #define PROM_ENXIO 0x14 41 #define PROM_EROFS 0x15 42 /* SGI ARCS specific errno's. */ 43 #define PROM_EADDRNOTAVAIL 0x1f 44 #define PROM_ETIMEDOUT 0x20 45 #define PROM_ECONNABORTED 0x21 46 #define PROM_ENOCONNECT 0x22 47 48 /* Device classes, types, and identifiers for prom 49 * device inventory queries. 50 */ 51 enum linux_devclass { 52 system, processor, cache, adapter, controller, peripheral, memory 53 }; 54 55 enum linux_devtypes { 56 /* Generic stuff. */ 57 Arc, Cpu, Fpu, 58 59 /* Primary insn and data caches. */ 60 picache, pdcache, 61 62 /* Secondary insn, data, and combined caches. */ 63 sicache, sdcache, sccache, 64 65 memdev, eisa_adapter, tc_adapter, scsi_adapter, dti_adapter, 66 multifunc_adapter, dsk_controller, tp_controller, cdrom_controller, 67 worm_controller, serial_controller, net_controller, disp_controller, 68 parallel_controller, ptr_controller, kbd_controller, audio_controller, 69 misc_controller, disk_peripheral, flpy_peripheral, tp_peripheral, 70 modem_peripheral, monitor_peripheral, printer_peripheral, 71 ptr_peripheral, kbd_peripheral, term_peripheral, line_peripheral, 72 net_peripheral, misc_peripheral, anon 73 }; 74 75 enum linux_identifier { 76 bogus, ronly, removable, consin, consout, input, output 77 }; 78 79 /* A prom device tree component. */ 80 struct linux_component { 81 enum linux_devclass class; /* node class */ 82 enum linux_devtypes type; /* node type */ 83 enum linux_identifier iflags; /* node flags */ 84 USHORT vers; /* node version */ 85 USHORT rev; /* node revision */ 86 ULONG key; /* completely magic */ 87 ULONG amask; /* XXX affinity mask??? */ 88 ULONG cdsize; /* size of configuration data */ 89 ULONG ilen; /* length of string identifier */ 90 _PULONG iname; /* string identifier */ 91 }; 92 typedef struct linux_component pcomponent; 93 94 struct linux_sysid { 95 char vend[8], prod[8]; 96 }; 97 98 /* ARCS prom memory descriptors. */ 99 enum arcs_memtypes { 100 arcs_eblock, /* exception block */ 101 arcs_rvpage, /* ARCS romvec page */ 102 arcs_fcontig, /* Contiguous and free */ 103 arcs_free, /* Generic free memory */ 104 arcs_bmem, /* Borken memory, don't use */ 105 arcs_prog, /* A loaded program resides here */ 106 arcs_atmp, /* ARCS temporary storage area, wish Sparc OpenBoot told this */ 107 arcs_aperm, /* ARCS permanent storage... */ 108 }; 109 110 /* ARC has slightly different types than ARCS */ 111 enum arc_memtypes { 112 arc_eblock, /* exception block */ 113 arc_rvpage, /* romvec page */ 114 arc_free, /* Generic free memory */ 115 arc_bmem, /* Borken memory, don't use */ 116 arc_prog, /* A loaded program resides here */ 117 arc_atmp, /* temporary storage area */ 118 arc_aperm, /* permanent storage */ 119 arc_fcontig, /* Contiguous and free */ 120 }; 121 122 union linux_memtypes { 123 enum arcs_memtypes arcs; 124 enum arc_memtypes arc; 125 }; 126 127 struct linux_mdesc { 128 union linux_memtypes type; 129 ULONG base; 130 ULONG pages; 131 }; 132 133 /* Time of day descriptor. */ 134 struct linux_tinfo { 135 unsigned short yr; 136 unsigned short mnth; 137 unsigned short day; 138 unsigned short hr; 139 unsigned short min; 140 unsigned short sec; 141 unsigned short msec; 142 }; 143 144 /* ARCS virtual dirents. */ 145 struct linux_vdirent { 146 ULONG namelen; 147 unsigned char attr; 148 char fname[32]; /* XXX imperical, should be a define */ 149 }; 150 151 /* Other stuff for files. */ 152 enum linux_omode { 153 rdonly, wronly, rdwr, wronly_creat, rdwr_creat, 154 wronly_ssede, rdwr_ssede, dirent, dirent_creat 155 }; 156 157 enum linux_seekmode { 158 absolute, relative 159 }; 160 161 enum linux_mountops { 162 media_load, media_unload 163 }; 164 165 /* This prom has a bolixed design. */ 166 struct linux_bigint { 167 #ifdef __MIPSEL__ 168 u32 lo; 169 s32 hi; 170 #else /* !(__MIPSEL__) */ 171 s32 hi; 172 u32 lo; 173 #endif 174 }; 175 176 struct linux_finfo { 177 struct linux_bigint begin; 178 struct linux_bigint end; 179 struct linux_bigint cur; 180 enum linux_devtypes dtype; 181 unsigned long namelen; 182 unsigned char attr; 183 char name[32]; /* XXX imperical, should be define */ 184 }; 185 186 /* This describes the vector containing function pointers to the ARC 187 firmware functions. */ 188 struct linux_romvec { 189 LONG load; /* Load an executable image. */ 190 LONG invoke; /* Invoke a standalong image. */ 191 LONG exec; /* Load and begin execution of a 192 standalone image. */ 193 LONG halt; /* Halt the machine. */ 194 LONG pdown; /* Power down the machine. */ 195 LONG restart; /* XXX soft reset??? */ 196 LONG reboot; /* Reboot the machine. */ 197 LONG imode; /* Enter PROM interactive mode. */ 198 LONG _unused1; /* Was ReturnFromMain(). */ 199 200 /* PROM device tree interface. */ 201 LONG next_component; 202 LONG child_component; 203 LONG parent_component; 204 LONG component_data; 205 LONG child_add; 206 LONG comp_del; 207 LONG component_by_path; 208 209 /* Misc. stuff. */ 210 LONG cfg_save; 211 LONG get_sysid; 212 213 /* Probing for memory. */ 214 LONG get_mdesc; 215 LONG _unused2; /* was Signal() */ 216 217 LONG get_tinfo; 218 LONG get_rtime; 219 220 /* File type operations. */ 221 LONG get_vdirent; 222 LONG open; 223 LONG close; 224 LONG read; 225 LONG get_rstatus; 226 LONG write; 227 LONG seek; 228 LONG mount; 229 230 /* Dealing with firmware environment variables. */ 231 LONG get_evar; 232 LONG set_evar; 233 234 LONG get_finfo; 235 LONG set_finfo; 236 237 /* Miscellaneous. */ 238 LONG cache_flush; 239 }; 240 241 /* The SGI ARCS parameter block is in a fixed location for standalone 242 * programs to access PROM facilities easily. 243 */ 244 typedef struct _SYSTEM_PARAMETER_BLOCK { 245 ULONG magic; /* magic cookie */ 246 #define PROMBLOCK_MAGIC 0x53435241 247 248 ULONG len; /* length of parm block */ 249 USHORT ver; /* ARCS firmware version */ 250 USHORT rev; /* ARCS firmware revision */ 251 _PLONG rs_block; /* Restart block. */ 252 _PLONG dbg_block; /* Debug block. */ 253 _PLONG gevect; /* XXX General vector??? */ 254 _PLONG utlbvect; /* XXX UTLB vector??? */ 255 ULONG rveclen; /* Size of romvec struct. */ 256 _PVOID romvec; /* Function interface. */ 257 ULONG pveclen; /* Length of private vector. */ 258 _PVOID pvector; /* Private vector. */ 259 ULONG adap_cnt; /* Adapter count. */ 260 ULONG adap_typ0; /* First adapter type. */ 261 ULONG adap_vcnt0; /* Adapter 0 vector count. */ 262 _PVOID adap_vector; /* Adapter 0 vector ptr. */ 263 ULONG adap_typ1; /* Second adapter type. */ 264 ULONG adap_vcnt1; /* Adapter 1 vector count. */ 265 _PVOID adap_vector1; /* Adapter 1 vector ptr. */ 266 /* More adapter vectors go here... */ 267 } SYSTEM_PARAMETER_BLOCK, *PSYSTEM_PARAMETER_BLOCK; 268 269 #define PROMBLOCK ((PSYSTEM_PARAMETER_BLOCK) (int)0xA0001000) 270 #define ROMVECTOR ((struct linux_romvec *) (long)(PROMBLOCK)->romvec) 271 272 /* Cache layout parameter block. */ 273 union linux_cache_key { 274 struct param { 275 #ifdef __MIPSEL__ 276 unsigned short size; 277 unsigned char lsize; 278 unsigned char bsize; 279 #else /* !(__MIPSEL__) */ 280 unsigned char bsize; 281 unsigned char lsize; 282 unsigned short size; 283 #endif 284 } info; 285 unsigned long allinfo; 286 }; 287 288 /* Configuration data. */ 289 struct linux_cdata { 290 char *name; 291 int mlen; 292 enum linux_devtypes type; 293 }; 294 295 /* Common SGI ARCS firmware file descriptors. */ 296 #define SGIPROM_STDIN 0 297 #define SGIPROM_STDOUT 1 298 299 /* Common SGI ARCS firmware file types. */ 300 #define SGIPROM_ROFILE 0x01 /* read-only file */ 301 #define SGIPROM_HFILE 0x02 /* hidden file */ 302 #define SGIPROM_SFILE 0x04 /* System file */ 303 #define SGIPROM_AFILE 0x08 /* Archive file */ 304 #define SGIPROM_DFILE 0x10 /* Directory file */ 305 #define SGIPROM_DELFILE 0x20 /* Deleted file */ 306 307 /* SGI ARCS boot record information. */ 308 struct sgi_partition { 309 unsigned char flag; 310 #define SGIPART_UNUSED 0x00 311 #define SGIPART_ACTIVE 0x80 312 313 unsigned char shead, ssect, scyl; /* unused */ 314 unsigned char systype; /* OS type, Irix or NT */ 315 unsigned char ehead, esect, ecyl; /* unused */ 316 unsigned char rsect0, rsect1, rsect2, rsect3; 317 unsigned char tsect0, tsect1, tsect2, tsect3; 318 }; 319 320 #define SGIBBLOCK_MAGIC 0xaa55 321 #define SGIBBLOCK_MAXPART 0x0004 322 323 struct sgi_bootblock { 324 unsigned char _unused[446]; 325 struct sgi_partition partitions[SGIBBLOCK_MAXPART]; 326 unsigned short magic; 327 }; 328 329 /* BIOS parameter block. */ 330 struct sgi_bparm_block { 331 unsigned short bytes_sect; /* bytes per sector */ 332 unsigned char sect_clust; /* sectors per cluster */ 333 unsigned short sect_resv; /* reserved sectors */ 334 unsigned char nfats; /* # of allocation tables */ 335 unsigned short nroot_dirents; /* # of root directory entries */ 336 unsigned short sect_volume; /* sectors in volume */ 337 unsigned char media_type; /* media descriptor */ 338 unsigned short sect_fat; /* sectors per allocation table */ 339 unsigned short sect_track; /* sectors per track */ 340 unsigned short nheads; /* # of heads */ 341 unsigned short nhsects; /* # of hidden sectors */ 342 }; 343 344 struct sgi_bsector { 345 unsigned char jmpinfo[3]; 346 unsigned char manuf_name[8]; 347 struct sgi_bparm_block info; 348 }; 349 350 /* Debugging block used with SGI symmon symbolic debugger. */ 351 #define SMB_DEBUG_MAGIC 0xfeeddead 352 struct linux_smonblock { 353 unsigned long magic; 354 void (*handler)(void); /* Breakpoint routine. */ 355 unsigned long dtable_base; /* Base addr of dbg table. */ 356 int (*printf)(const char *fmt, ...); 357 unsigned long btable_base; /* Breakpoint table. */ 358 unsigned long mpflushreqs; /* SMP cache flush request list. */ 359 unsigned long ntab; /* Name table. */ 360 unsigned long stab; /* Symbol table. */ 361 int smax; /* Max # of symbols. */ 362 }; 363 364 /* 365 * Macros for calling a 32-bit ARC implementation from 64-bit code 366 */ 367 368 #if defined(CONFIG_MIPS64) && defined(CONFIG_ARC32) 369 370 #define __arc_clobbers \ 371 "$2","$3" /* ... */, "$8","$9","$10","$11", \ 372 "$12","$13","$14","$15","$16","$24","25","$31" 373 374 #define ARC_CALL0(dest) \ 375 ({ long __res; \ 376 long __vec = (long) romvec->dest; \ 377 __asm__ __volatile__( \ 378 "dsubu\t$29, 32\n\t" \ 379 "jalr\t%1\n\t" \ 380 "daddu\t$29, 32\n\t" \ 381 "move\t%0, $2" \ 382 : "=r" (__res), "=r" (__vec) \ 383 : "1" (__vec) \ 384 : __arc_clobbers, "$4","$5","$6","$7"); \ 385 (unsigned long) __res; \ 386 }) 387 388 #define ARC_CALL1(dest,a1) \ 389 ({ long __res; \ 390 register signed int __a1 __asm__("$4") = (int) (long) (a1); \ 391 long __vec = (long) romvec->dest; \ 392 __asm__ __volatile__( \ 393 "dsubu\t$29, 32\n\t" \ 394 "jalr\t%1\n\t" \ 395 "daddu\t$29, 32\n\t" \ 396 "move\t%0, $2" \ 397 : "=r" (__res), "=r" (__vec) \ 398 : "1" (__vec), "r" (__a1) \ 399 : __arc_clobbers, "$5","$6","$7"); \ 400 (unsigned long) __res; \ 401 }) 402 403 #define ARC_CALL2(dest,a1,a2) \ 404 ({ long __res; \ 405 register signed int __a1 __asm__("$4") = (int) (long) (a1); \ 406 register signed int __a2 __asm__("$5") = (int) (long) (a2); \ 407 long __vec = (long) romvec->dest; \ 408 __asm__ __volatile__( \ 409 "dsubu\t$29, 32\n\t" \ 410 "jalr\t%1\n\t" \ 411 "daddu\t$29, 32\n\t" \ 412 "move\t%0, $2" \ 413 : "=r" (__res), "=r" (__vec) \ 414 : "1" (__vec), "r" (__a1), "r" (__a2) \ 415 : __arc_clobbers, "$6","$7"); \ 416 __res; \ 417 }) 418 419 #define ARC_CALL3(dest,a1,a2,a3) \ 420 ({ long __res; \ 421 register signed int __a1 __asm__("$4") = (int) (long) (a1); \ 422 register signed int __a2 __asm__("$5") = (int) (long) (a2); \ 423 register signed int __a3 __asm__("$6") = (int) (long) (a3); \ 424 long __vec = (long) romvec->dest; \ 425 __asm__ __volatile__( \ 426 "dsubu\t$29, 32\n\t" \ 427 "jalr\t%1\n\t" \ 428 "daddu\t$29, 32\n\t" \ 429 "move\t%0, $2" \ 430 : "=r" (__res), "=r" (__vec) \ 431 : "1" (__vec), "r" (__a1), "r" (__a2), "r" (__a3) \ 432 : __arc_clobbers, "$7"); \ 433 __res; \ 434 }) 435 436 #define ARC_CALL4(dest,a1,a2,a3,a4) \ 437 ({ long __res; \ 438 register signed int __a1 __asm__("$4") = (int) (long) (a1); \ 439 register signed int __a2 __asm__("$5") = (int) (long) (a2); \ 440 register signed int __a3 __asm__("$6") = (int) (long) (a3); \ 441 register signed int __a4 __asm__("$7") = (int) (long) (a4); \ 442 long __vec = (long) romvec->dest; \ 443 __asm__ __volatile__( \ 444 "dsubu\t$29, 32\n\t" \ 445 "jalr\t%1\n\t" \ 446 "daddu\t$29, 32\n\t" \ 447 "move\t%0, $2" \ 448 : "=r" (__res), "=r" (__vec) \ 449 : "1" (__vec), "r" (__a1), "r" (__a2), "r" (__a3), \ 450 "r" (__a4) \ 451 : __arc_clobbers); \ 452 __res; \ 453 }) 454 455 #define ARC_CALL5(dest,a1,a2,a3,a4,a5) \ 456 ({ long __res; \ 457 register signed int __a1 __asm__("$4") = (int) (long) (a1); \ 458 register signed int __a2 __asm__("$5") = (int) (long) (a2); \ 459 register signed int __a3 __asm__("$6") = (int) (long) (a3); \ 460 register signed int __a4 __asm__("$7") = (int) (long) (a4); \ 461 register signed int __a5 = (a5); \ 462 long __vec = (long) romvec->dest; \ 463 __asm__ __volatile__( \ 464 "dsubu\t$29, 32\n\t" \ 465 "sw\t%6, 16($29)\n\t" \ 466 "jalr\t%1\n\t" \ 467 "daddu\t$29, 32\n\t" \ 468 "move\t%0, $2" \ 469 : "=r" (__res), "=r" (__vec) \ 470 : "1" (__vec), \ 471 "r" (__a1), "r" (__a2), "r" (__a3), "r" (__a4), \ 472 "r" (__a5) \ 473 : __arc_clobbers); \ 474 __res; \ 475 }) 476 477 #endif /* defined(CONFIG_MIPS64) && defined(CONFIG_ARC32) */ 478 479 #if (defined(CONFIG_MIPS32) && defined(CONFIG_ARC32)) || \ 480 (defined(CONFIG_MIPS64) && defined(CONFIG_ARC64)) 481 482 #define ARC_CALL0(dest) \ 483 ({ long __res; \ 484 long (*__vec)(void) = (void *) romvec->dest; \ 485 \ 486 __res = __vec(); \ 487 __res; \ 488 }) 489 490 #define ARC_CALL1(dest,a1) \ 491 ({ long __res; \ 492 long __a1 = (long) (a1); \ 493 long (*__vec)(long) = (void *) romvec->dest; \ 494 \ 495 __res = __vec(__a1); \ 496 __res; \ 497 }) 498 499 #define ARC_CALL2(dest,a1,a2) \ 500 ({ long __res; \ 501 long __a1 = (long) (a1); \ 502 long __a2 = (long) (a2); \ 503 long (*__vec)(long, long) = (void *) romvec->dest; \ 504 \ 505 __res = __vec(__a1, __a2); \ 506 __res; \ 507 }) 508 509 #define ARC_CALL3(dest,a1,a2,a3) \ 510 ({ long __res; \ 511 long __a1 = (long) (a1); \ 512 long __a2 = (long) (a2); \ 513 long __a3 = (long) (a3); \ 514 long (*__vec)(long, long, long) = (void *) romvec->dest; \ 515 \ 516 __res = __vec(__a1, __a2, __a3); \ 517 __res; \ 518 }) 519 520 #define ARC_CALL4(dest,a1,a2,a3,a4) \ 521 ({ long __res; \ 522 long __a1 = (long) (a1); \ 523 long __a2 = (long) (a2); \ 524 long __a3 = (long) (a3); \ 525 long __a4 = (long) (a4); \ 526 long (*__vec)(long, long, long, long) = (void *) romvec->dest; \ 527 \ 528 __res = __vec(__a1, __a2, __a3, __a4); \ 529 __res; \ 530 }) 531 532 #define ARC_CALL5(dest,a1,a2,a3,a4,a5) \ 533 ({ long __res; \ 534 long __a1 = (long) (a1); \ 535 long __a2 = (long) (a2); \ 536 long __a3 = (long) (a3); \ 537 long __a4 = (long) (a4); \ 538 long __a5 = (long) (a5); \ 539 long (*__vec)(long, long, long, long, long); \ 540 __vec = (void *) romvec->dest; \ 541 \ 542 __res = __vec(__a1, __a2, __a3, __a4, __a5); \ 543 __res; \ 544 }) 545 #endif /* both kernel and ARC either 32-bit or 64-bit */ 546 547 #endif /* _ASM_SGIARCS_H */
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