cpuregs.h revision 1.64
1/* $NetBSD: cpuregs.h,v 1.64 2003/09/28 08:43:29 tsutsui Exp $ */ 2 3/* 4 * Copyright (c) 1992, 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 * Ralph Campbell and Rick Macklem. 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. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)machConst.h 8.1 (Berkeley) 6/10/93 35 * 36 * machConst.h -- 37 * 38 * Machine dependent constants. 39 * 40 * Copyright (C) 1989 Digital Equipment Corporation. 41 * Permission to use, copy, modify, and distribute this software and 42 * its documentation for any purpose and without fee is hereby granted, 43 * provided that the above copyright notice appears in all copies. 44 * Digital Equipment Corporation makes no representations about the 45 * suitability of this software for any purpose. It is provided "as is" 46 * without express or implied warranty. 47 * 48 * from: Header: /sprite/src/kernel/mach/ds3100.md/RCS/machConst.h, 49 * v 9.2 89/10/21 15:55:22 jhh Exp SPRITE (DECWRL) 50 * from: Header: /sprite/src/kernel/mach/ds3100.md/RCS/machAddrs.h, 51 * v 1.2 89/08/15 18:28:21 rab Exp SPRITE (DECWRL) 52 * from: Header: /sprite/src/kernel/vm/ds3100.md/RCS/vmPmaxConst.h, 53 * v 9.1 89/09/18 17:33:00 shirriff Exp SPRITE (DECWRL) 54 */ 55 56#ifndef _MIPS_CPUREGS_H_ 57#define _MIPS_CPUREGS_H_ 58 59#include <sys/cdefs.h> /* For __CONCAT() */ 60 61#if defined(_KERNEL_OPT) 62#include "opt_cputype.h" 63#endif 64 65/* 66 * Address space. 67 * 32-bit mips CPUS partition their 32-bit address space into four segments: 68 * 69 * kuseg 0x00000000 - 0x7fffffff User virtual mem, mapped 70 * kseg0 0x80000000 - 0x9fffffff Physical memory, cached, unmapped 71 * kseg1 0xa0000000 - 0xbfffffff Physical memory, uncached, unmapped 72 * kseg2 0xc0000000 - 0xffffffff kernel-virtual, mapped 73 * 74 * mips1 physical memory is limited to 512Mbytes, which is 75 * doubly mapped in kseg0 (cached) and kseg1 (uncached.) 76 * Caching of mapped addresses is controlled by bits in the TLB entry. 77 */ 78 79#define MIPS_KUSEG_START 0x0 80#define MIPS_KSEG0_START 0x80000000 81#define MIPS_KSEG1_START 0xa0000000 82#define MIPS_KSEG2_START 0xc0000000 83#define MIPS_MAX_MEM_ADDR 0xbe000000 84#define MIPS_RESERVED_ADDR 0xbfc80000 85 86#define MIPS_PHYS_MASK 0x1fffffff 87 88#define MIPS_KSEG0_TO_PHYS(x) ((unsigned)(x) & MIPS_PHYS_MASK) 89#define MIPS_PHYS_TO_KSEG0(x) ((unsigned)(x) | MIPS_KSEG0_START) 90#define MIPS_KSEG1_TO_PHYS(x) ((unsigned)(x) & MIPS_PHYS_MASK) 91#define MIPS_PHYS_TO_KSEG1(x) ((unsigned)(x) | MIPS_KSEG1_START) 92#define MIPS_KSEG2_TO_PHYS(x) ((unsigned)(x) & MIPS_PHYS_MASK) 93#define MIPS_PHYS_TO_KSEG2(x) ((unsigned)(x) | MIPS_KSEG2_START) 94 95/* Map virtual address to index in mips3 r4k virtually-indexed cache */ 96#define MIPS3_VA_TO_CINDEX(x) \ 97 ((unsigned)(x) & 0xffffff | MIPS_KSEG0_START) 98 99#define MIPS_PHYS_TO_XKPHYS(cca,x) \ 100 ((0x2ULL << 62) | ((unsigned long long)(cca) << 59) | (x)) 101#define MIPS_XKPHYS_TO_PHYS(x) ((x) & 0x0effffffffffffffULL) 102 103/* CPU dependent mtc0 hazard hook */ 104#define COP0_SYNC /* nothing */ 105#define COP0_HAZARD_FPUENABLE nop; nop; nop; nop; 106 107/* 108 * The bits in the cause register. 109 * 110 * Bits common to r3000 and r4000: 111 * 112 * MIPS_CR_BR_DELAY Exception happened in branch delay slot. 113 * MIPS_CR_COP_ERR Coprocessor error. 114 * MIPS_CR_IP Interrupt pending bits defined below. 115 * (same meaning as in CAUSE register). 116 * MIPS_CR_EXC_CODE The exception type (see exception codes below). 117 * 118 * Differences: 119 * r3k has 4 bits of execption type, r4k has 5 bits. 120 */ 121#define MIPS_CR_BR_DELAY 0x80000000 122#define MIPS_CR_COP_ERR 0x30000000 123#define MIPS1_CR_EXC_CODE 0x0000003C /* four bits */ 124#define MIPS3_CR_EXC_CODE 0x0000007C /* five bits */ 125#define MIPS_CR_IP 0x0000FF00 126#define MIPS_CR_EXC_CODE_SHIFT 2 127 128/* 129 * The bits in the status register. All bits are active when set to 1. 130 * 131 * R3000 status register fields: 132 * MIPS_SR_COP_USABILITY Control the usability of the four coprocessors. 133 * MIPS_SR_TS TLB shutdown. 134 * 135 * MIPS_SR_INT_IE Master (current) interrupt enable bit. 136 * 137 * Differences: 138 * r3k has cache control is via frobbing SR register bits, whereas the 139 * r4k cache control is via explicit instructions. 140 * r3k has a 3-entry stack of kernel/user bits, whereas the 141 * r4k has kernel/supervisor/user. 142 */ 143#define MIPS_SR_COP_USABILITY 0xf0000000 144#define MIPS_SR_COP_0_BIT 0x10000000 145#define MIPS_SR_COP_1_BIT 0x20000000 146 147 /* r4k and r3k differences, see below */ 148 149#define MIPS_SR_MX 0x01000000 /* MIPS64 */ 150#define MIPS_SR_PX 0x00800000 /* MIPS64 */ 151#define MIPS_SR_BEV 0x00400000 /* Use boot exception vector */ 152#define MIPS_SR_TS 0x00200000 153 154 /* r4k and r3k differences, see below */ 155 156#define MIPS_SR_INT_IE 0x00000001 157/*#define MIPS_SR_MBZ 0x0f8000c0*/ /* Never used, true for r3k */ 158/*#define MIPS_SR_INT_MASK 0x0000ff00*/ 159 160 161/* 162 * The R2000/R3000-specific status register bit definitions. 163 * all bits are active when set to 1. 164 * 165 * MIPS_SR_PARITY_ERR Parity error. 166 * MIPS_SR_CACHE_MISS Most recent D-cache load resulted in a miss. 167 * MIPS_SR_PARITY_ZERO Zero replaces outgoing parity bits. 168 * MIPS_SR_SWAP_CACHES Swap I-cache and D-cache. 169 * MIPS_SR_ISOL_CACHES Isolate D-cache from main memory. 170 * Interrupt enable bits defined below. 171 * MIPS_SR_KU_OLD Old kernel/user mode bit. 1 => user mode. 172 * MIPS_SR_INT_ENA_OLD Old interrupt enable bit. 173 * MIPS_SR_KU_PREV Previous kernel/user mode bit. 1 => user mode. 174 * MIPS_SR_INT_ENA_PREV Previous interrupt enable bit. 175 * MIPS_SR_KU_CUR Current kernel/user mode bit. 1 => user mode. 176 */ 177 178#define MIPS1_PARITY_ERR 0x00100000 179#define MIPS1_CACHE_MISS 0x00080000 180#define MIPS1_PARITY_ZERO 0x00040000 181#define MIPS1_SWAP_CACHES 0x00020000 182#define MIPS1_ISOL_CACHES 0x00010000 183 184#define MIPS1_SR_KU_OLD 0x00000020 /* 2nd stacked KU/IE*/ 185#define MIPS1_SR_INT_ENA_OLD 0x00000010 /* 2nd stacked KU/IE*/ 186#define MIPS1_SR_KU_PREV 0x00000008 /* 1st stacked KU/IE*/ 187#define MIPS1_SR_INT_ENA_PREV 0x00000004 /* 1st stacked KU/IE*/ 188#define MIPS1_SR_KU_CUR 0x00000002 /* current KU */ 189 190/* backwards compatibility */ 191#define MIPS_SR_PARITY_ERR MIPS1_PARITY_ERR 192#define MIPS_SR_CACHE_MISS MIPS1_CACHE_MISS 193#define MIPS_SR_PARITY_ZERO MIPS1_PARITY_ZERO 194#define MIPS_SR_SWAP_CACHES MIPS1_SWAP_CACHES 195#define MIPS_SR_ISOL_CACHES MIPS1_ISOL_CACHES 196 197#define MIPS_SR_KU_OLD MIPS1_SR_KU_OLD 198#define MIPS_SR_INT_ENA_OLD MIPS1_SR_INT_ENA_OLD 199#define MIPS_SR_KU_PREV MIPS1_SR_KU_PREV 200#define MIPS_SR_KU_CUR MIPS1_SR_KU_CUR 201#define MIPS_SR_INT_ENA_PREV MIPS1_SR_INT_ENA_PREV 202 203/* 204 * R4000 status register bit definitons, 205 * where different from r2000/r3000. 206 */ 207#define MIPS3_SR_XX 0x80000000 208#define MIPS3_SR_RP 0x08000000 209#define MIPS3_SR_FR 0x04000000 210#define MIPS3_SR_RE 0x02000000 211 212#define MIPS3_SR_DIAG_DL 0x01000000 /* QED 52xx */ 213#define MIPS3_SR_DIAG_IL 0x00800000 /* QED 52xx */ 214#define MIPS3_SR_SR 0x00100000 215#define MIPS3_SR_EIE 0x00100000 /* TX79/R5900 */ 216#define MIPS3_SR_NMI 0x00080000 /* MIPS32/64 */ 217#define MIPS3_SR_DIAG_CH 0x00040000 218#define MIPS3_SR_DIAG_CE 0x00020000 219#define MIPS3_SR_DIAG_PE 0x00010000 220#define MIPS3_SR_KX 0x00000080 221#define MIPS3_SR_SX 0x00000040 222#define MIPS3_SR_UX 0x00000020 223#define MIPS3_SR_KSU_MASK 0x00000018 224#define MIPS3_SR_KSU_USER 0x00000010 225#define MIPS3_SR_KSU_SUPER 0x00000008 226#define MIPS3_SR_KSU_KERNEL 0x00000000 227#define MIPS3_SR_ERL 0x00000004 228#define MIPS3_SR_EXL 0x00000002 229 230#ifdef MIPS3_5900 231#undef MIPS_SR_INT_IE 232#define MIPS_SR_INT_IE 0x00010001 /* XXX */ 233#endif 234 235#define MIPS_SR_SOFT_RESET MIPS3_SR_SOFT_RESET 236#define MIPS_SR_DIAG_CH MIPS3_SR_DIAG_CH 237#define MIPS_SR_DIAG_CE MIPS3_SR_DIAG_CE 238#define MIPS_SR_DIAG_PE MIPS3_SR_DIAG_PE 239#define MIPS_SR_KX MIPS3_SR_KX 240#define MIPS_SR_SX MIPS3_SR_SX 241#define MIPS_SR_UX MIPS3_SR_UX 242 243#define MIPS_SR_KSU_MASK MIPS3_SR_KSU_MASK 244#define MIPS_SR_KSU_USER MIPS3_SR_KSU_USER 245#define MIPS_SR_KSU_SUPER MIPS3_SR_KSU_SUPER 246#define MIPS_SR_KSU_KERNEL MIPS3_SR_KSU_KERNEL 247#define MIPS_SR_ERL MIPS3_SR_ERL 248#define MIPS_SR_EXL MIPS3_SR_EXL 249 250 251/* 252 * The interrupt masks. 253 * If a bit in the mask is 1 then the interrupt is enabled (or pending). 254 */ 255#define MIPS_INT_MASK 0xff00 256#define MIPS_INT_MASK_5 0x8000 257#define MIPS_INT_MASK_4 0x4000 258#define MIPS_INT_MASK_3 0x2000 259#define MIPS_INT_MASK_2 0x1000 260#define MIPS_INT_MASK_1 0x0800 261#define MIPS_INT_MASK_0 0x0400 262#define MIPS_HARD_INT_MASK 0xfc00 263#define MIPS_SOFT_INT_MASK_1 0x0200 264#define MIPS_SOFT_INT_MASK_0 0x0100 265 266/* 267 * mips3 CPUs have on-chip timer at INT_MASK_5. Each platform can 268 * choose to enable this interrupt. 269 */ 270#if defined(MIPS3_ENABLE_CLOCK_INTR) 271#define MIPS3_INT_MASK MIPS_INT_MASK 272#define MIPS3_HARD_INT_MASK MIPS_HARD_INT_MASK 273#else 274#define MIPS3_INT_MASK (MIPS_INT_MASK & ~MIPS_INT_MASK_5) 275#define MIPS3_HARD_INT_MASK (MIPS_HARD_INT_MASK & ~MIPS_INT_MASK_5) 276#endif 277 278/* 279 * The bits in the context register. 280 */ 281#define MIPS1_CNTXT_PTE_BASE 0xFFE00000 282#define MIPS1_CNTXT_BAD_VPN 0x001FFFFC 283 284#define MIPS3_CNTXT_PTE_BASE 0xFF800000 285#define MIPS3_CNTXT_BAD_VPN2 0x007FFFF0 286 287/* 288 * The bits in the MIPS3 config register. 289 * 290 * bit 0..5: R/W, Bit 6..31: R/O 291 */ 292 293/* kseg0 coherency algorithm - see MIPS3_TLB_ATTR values */ 294#define MIPS3_CONFIG_K0_MASK 0x00000007 295 296/* 297 * R/W Update on Store Conditional 298 * 0: Store Conditional uses coherency algorithm specified by TLB 299 * 1: Store Conditional uses cacheable coherent update on write 300 */ 301#define MIPS3_CONFIG_CU 0x00000008 302 303#define MIPS3_CONFIG_DB 0x00000010 /* Primary D-cache line size */ 304#define MIPS3_CONFIG_IB 0x00000020 /* Primary I-cache line size */ 305#define MIPS3_CONFIG_CACHE_L1_LSIZE(config, bit) \ 306 (((config) & (bit)) ? 32 : 16) 307 308#define MIPS3_CONFIG_DC_MASK 0x000001c0 /* Primary D-cache size */ 309#define MIPS3_CONFIG_DC_SHIFT 6 310#define MIPS3_CONFIG_IC_MASK 0x00000e00 /* Primary I-cache size */ 311#define MIPS3_CONFIG_IC_SHIFT 9 312#define MIPS3_CONFIG_C_DEFBASE 0x1000 /* default base 2^12 */ 313#ifdef MIPS3_4100 /* VR4100 core */ 314/* XXXCDC: THIS MIPS3_4100 SPECIAL CASE SHOULD GO AWAY */ 315#define MIPS3_CONFIG_CS 0x00001000 /* cache size mode indication*/ 316#define MIPS3_CONFIG_CACHE_SIZE(config, mask, dummy, shift) \ 317 ((((config)&MIPS3_CONFIG_CS)?0x400:0x1000) << (((config) & (mask)) >> (shift))) 318#else 319#define MIPS3_CONFIG_CACHE_SIZE(config, mask, base, shift) \ 320 ((base) << (((config) & (mask)) >> (shift))) 321#endif 322 323/* External cache enable: Controls L2 for R5000/Rm527x and L3 for Rm7000 */ 324#define MIPS3_CONFIG_SE 0x00001000 325 326/* Block ordering: 0: sequential, 1: sub-block */ 327#define MIPS3_CONFIG_EB 0x00002000 328 329/* ECC mode - 0: ECC mode, 1: parity mode */ 330#define MIPS3_CONFIG_EM 0x00004000 331 332/* BigEndianMem - 0: kernel and memory are little endian, 1: big endian */ 333#define MIPS3_CONFIG_BE 0x00008000 334 335/* Dirty Shared coherency state - 0: enabled, 1: disabled */ 336#define MIPS3_CONFIG_SM 0x00010000 337 338/* Secondary Cache - 0: present, 1: not present */ 339#define MIPS3_CONFIG_SC 0x00020000 340 341/* System Port width - 0: 64-bit, 1: 32-bit (QED RM523x), 2,3: reserved */ 342#define MIPS3_CONFIG_EW_MASK 0x000c0000 343#define MIPS3_CONFIG_EW_SHIFT 18 344 345/* Secondary Cache port width - 0: 128-bit data path to S-cache, 1: reserved */ 346#define MIPS3_CONFIG_SW 0x00100000 347 348/* Split Secondary Cache Mode - 0: I/D mixed, 1: I/D separated by SCAddr(17) */ 349#define MIPS3_CONFIG_SS 0x00200000 350 351/* Secondary Cache line size */ 352#define MIPS3_CONFIG_SB_MASK 0x00c00000 353#define MIPS3_CONFIG_SB_SHIFT 22 354#define MIPS3_CONFIG_CACHE_L2_LSIZE(config) \ 355 (0x10 << (((config) & MIPS3_CONFIG_SB_MASK) >> MIPS3_CONFIG_SB_SHIFT)) 356 357/* Write back data rate */ 358#define MIPS3_CONFIG_EP_MASK 0x0f000000 359#define MIPS3_CONFIG_EP_SHIFT 24 360 361/* System clock ratio - this value is CPU dependent */ 362#define MIPS3_CONFIG_EC_MASK 0x70000000 363#define MIPS3_CONFIG_EC_SHIFT 28 364 365/* Master-Checker Mode - 1: enabled */ 366#define MIPS3_CONFIG_CM 0x80000000 367 368/* 369 * The bits in the MIPS4 config register. 370 */ 371 372/* kseg0 coherency algorithm - see MIPS3_TLB_ATTR values */ 373#define MIPS4_CONFIG_K0_MASK MIPS3_CONFIG_K0_MASK 374#define MIPS4_CONFIG_DN_MASK 0x00000018 /* Device number */ 375#define MIPS4_CONFIG_CT 0x00000020 /* CohPrcReqTar */ 376#define MIPS4_CONFIG_PE 0x00000040 /* PreElmReq */ 377#define MIPS4_CONFIG_PM_MASK 0x00000180 /* PreReqMax */ 378#define MIPS4_CONFIG_EC_MASK 0x00001e00 /* SysClkDiv */ 379#define MIPS4_CONFIG_SB 0x00002000 /* SCBlkSize */ 380#define MIPS4_CONFIG_SK 0x00004000 /* SCColEn */ 381#define MIPS4_CONFIG_BE 0x00008000 /* MemEnd */ 382#define MIPS4_CONFIG_SS_MASK 0x00070000 /* SCSize */ 383#define MIPS4_CONFIG_SC_MASK 0x00380000 /* SCClkDiv */ 384#define MIPS4_CONFIG_RESERVED 0x03c00000 /* Reserved wired 0 */ 385#define MIPS4_CONFIG_DC_MASK 0x1c000000 /* Primary D-Cache size */ 386#define MIPS4_CONFIG_IC_MASK 0xe0000000 /* Primary I-Cache size */ 387 388#define MIPS4_CONFIG_DC_SHIFT 26 389#define MIPS4_CONFIG_IC_SHIFT 29 390 391#define MIPS4_CONFIG_CACHE_SIZE(config, mask, base, shift) \ 392 ((base) << (((config) & (mask)) >> (shift))) 393 394#define MIPS4_CONFIG_CACHE_L2_LSIZE(config) \ 395 (((config) & MIPS4_CONFIG_SB) ? 128 : 64) 396 397/* 398 * Location of exception vectors. 399 * 400 * Common vectors: reset and UTLB miss. 401 */ 402#define MIPS_RESET_EXC_VEC 0xBFC00000 403#define MIPS_UTLB_MISS_EXC_VEC 0x80000000 404 405/* 406 * MIPS-1 general exception vector (everything else) 407 */ 408#define MIPS1_GEN_EXC_VEC 0x80000080 409 410/* 411 * MIPS-III exception vectors 412 */ 413#define MIPS3_XTLB_MISS_EXC_VEC 0x80000080 414#define MIPS3_CACHE_ERR_EXC_VEC 0x80000100 415#define MIPS3_GEN_EXC_VEC 0x80000180 416 417/* 418 * TX79 (R5900) exception vectors 419 */ 420#define MIPS_R5900_COUNTER_EXC_VEC 0x80000080 421#define MIPS_R5900_DEBUG_EXC_VEC 0x80000100 422 423/* 424 * MIPS32/MIPS64 (and some MIPS3) dedicated interrupt vector. 425 */ 426#define MIPS3_INTR_EXC_VEC 0x80000200 427 428/* 429 * Coprocessor 0 registers: 430 * 431 * v--- width for mips I,III,32,64 432 * (3=32bit, 6=64bit, i=impl dep) 433 * 0 MIPS_COP_0_TLB_INDEX 3333 TLB Index. 434 * 1 MIPS_COP_0_TLB_RANDOM 3333 TLB Random. 435 * 2 MIPS_COP_0_TLB_LOW 3... r3k TLB entry low. 436 * 2 MIPS_COP_0_TLB_LO0 .636 r4k TLB entry low. 437 * 3 MIPS_COP_0_TLB_LO1 .636 r4k TLB entry low, extended. 438 * 4 MIPS_COP_0_TLB_CONTEXT 3636 TLB Context. 439 * 5 MIPS_COP_0_TLB_PG_MASK .333 TLB Page Mask register. 440 * 6 MIPS_COP_0_TLB_WIRED .333 Wired TLB number. 441 * 8 MIPS_COP_0_BAD_VADDR 3636 Bad virtual address. 442 * 9 MIPS_COP_0_COUNT .333 Count register. 443 * 10 MIPS_COP_0_TLB_HI 3636 TLB entry high. 444 * 11 MIPS_COP_0_COMPARE .333 Compare (against Count). 445 * 12 MIPS_COP_0_STATUS 3333 Status register. 446 * 13 MIPS_COP_0_CAUSE 3333 Exception cause register. 447 * 14 MIPS_COP_0_EXC_PC 3636 Exception PC. 448 * 15 MIPS_COP_0_PRID 3333 Processor revision identifier. 449 * 16 MIPS_COP_0_CONFIG 3333 Configuration register. 450 * 16/1 MIPS_COP_0_CONFIG1 ..33 Configuration register 1. 451 * 16/2 MIPS_COP_0_CONFIG2 ..33 Configuration register 2. 452 * 16/3 MIPS_COP_0_CONFIG3 ..33 Configuration register 3. 453 * 17 MIPS_COP_0_LLADDR .336 Load Linked Address. 454 * 18 MIPS_COP_0_WATCH_LO .336 WatchLo register. 455 * 19 MIPS_COP_0_WATCH_HI .333 WatchHi register. 456 * 20 MIPS_COP_0_TLB_XCONTEXT .6.6 TLB XContext register. 457 * 23 MIPS_COP_0_DEBUG .... Debug JTAG register. 458 * 24 MIPS_COP_0_DEPC .... DEPC JTAG register. 459 * 25 MIPS_COP_0_PERFCNT ..36 Performance Counter register. 460 * 26 MIPS_COP_0_ECC .3ii ECC / Error Control register. 461 * 27 MIPS_COP_0_CACHE_ERR .3ii Cache Error register. 462 * 28/0 MIPS_COP_0_TAG_LO .3ii Cache TagLo register (instr). 463 * 28/1 MIPS_COP_0_DATA_LO ..ii Cache DataLo register (instr). 464 * 28/2 MIPS_COP_0_TAG_LO ..ii Cache TagLo register (data). 465 * 28/3 MIPS_COP_0_DATA_LO ..ii Cache DataLo register (data). 466 * 29/0 MIPS_COP_0_TAG_HI .3ii Cache TagHi register (instr). 467 * 29/1 MIPS_COP_0_DATA_HI ..ii Cache DataHi register (instr). 468 * 29/2 MIPS_COP_0_TAG_HI ..ii Cache TagHi register (data). 469 * 29/3 MIPS_COP_0_DATA_HI ..ii Cache DataHi register (data). 470 * 30 MIPS_COP_0_ERROR_PC .636 Error EPC register. 471 * 31 MIPS_COP_0_DESAVE .... DESAVE JTAG register. 472 */ 473#ifdef _LOCORE 474#define _(n) __CONCAT($,n) 475#else 476#define _(n) n 477#endif 478#define MIPS_COP_0_TLB_INDEX _(0) 479#define MIPS_COP_0_TLB_RANDOM _(1) 480 /* Name and meaning of TLB bits for $2 differ on r3k and r4k. */ 481 482#define MIPS_COP_0_TLB_CONTEXT _(4) 483 /* $5 and $6 new with MIPS-III */ 484#define MIPS_COP_0_BAD_VADDR _(8) 485#define MIPS_COP_0_TLB_HI _(10) 486#define MIPS_COP_0_STATUS _(12) 487#define MIPS_COP_0_CAUSE _(13) 488#define MIPS_COP_0_EXC_PC _(14) 489#define MIPS_COP_0_PRID _(15) 490 491 492/* MIPS-I */ 493#define MIPS_COP_0_TLB_LOW _(2) 494 495/* MIPS-III */ 496#define MIPS_COP_0_TLB_LO0 _(2) 497#define MIPS_COP_0_TLB_LO1 _(3) 498 499#define MIPS_COP_0_TLB_PG_MASK _(5) 500#define MIPS_COP_0_TLB_WIRED _(6) 501 502#define MIPS_COP_0_COUNT _(9) 503#define MIPS_COP_0_COMPARE _(11) 504 505#define MIPS_COP_0_CONFIG _(16) 506#define MIPS_COP_0_LLADDR _(17) 507#define MIPS_COP_0_WATCH_LO _(18) 508#define MIPS_COP_0_WATCH_HI _(19) 509#define MIPS_COP_0_TLB_XCONTEXT _(20) 510#define MIPS_COP_0_ECC _(26) 511#define MIPS_COP_0_CACHE_ERR _(27) 512#define MIPS_COP_0_TAG_LO _(28) 513#define MIPS_COP_0_TAG_HI _(29) 514#define MIPS_COP_0_ERROR_PC _(30) 515 516/* MIPS32/64 */ 517#define MIPS_COP_0_DEBUG _(23) 518#define MIPS_COP_0_DEPC _(24) 519#define MIPS_COP_0_PERFCNT _(25) 520#define MIPS_COP_0_DATA_LO _(28) 521#define MIPS_COP_0_DATA_HI _(29) 522#define MIPS_COP_0_DESAVE _(31) 523 524/* 525 * Values for the code field in a break instruction. 526 */ 527#define MIPS_BREAK_INSTR 0x0000000d 528#define MIPS_BREAK_VAL_MASK 0x03ff0000 529#define MIPS_BREAK_VAL_SHIFT 16 530#define MIPS_BREAK_KDB_VAL 512 531#define MIPS_BREAK_SSTEP_VAL 513 532#define MIPS_BREAK_BRKPT_VAL 514 533#define MIPS_BREAK_SOVER_VAL 515 534#define MIPS_BREAK_KDB (MIPS_BREAK_INSTR | \ 535 (MIPS_BREAK_KDB_VAL << MIPS_BREAK_VAL_SHIFT)) 536#define MIPS_BREAK_SSTEP (MIPS_BREAK_INSTR | \ 537 (MIPS_BREAK_SSTEP_VAL << MIPS_BREAK_VAL_SHIFT)) 538#define MIPS_BREAK_BRKPT (MIPS_BREAK_INSTR | \ 539 (MIPS_BREAK_BRKPT_VAL << MIPS_BREAK_VAL_SHIFT)) 540#define MIPS_BREAK_SOVER (MIPS_BREAK_INSTR | \ 541 (MIPS_BREAK_SOVER_VAL << MIPS_BREAK_VAL_SHIFT)) 542 543/* 544 * Mininum and maximum cache sizes. 545 */ 546#define MIPS_MIN_CACHE_SIZE (16 * 1024) 547#define MIPS_MAX_CACHE_SIZE (256 * 1024) 548#define MIPS3_MAX_PCACHE_SIZE (32 * 1024) /* max. primary cache size */ 549 550/* 551 * The floating point version and status registers. 552 */ 553#define MIPS_FPU_ID $0 554#define MIPS_FPU_CSR $31 555 556/* 557 * The floating point coprocessor status register bits. 558 */ 559#define MIPS_FPU_ROUNDING_BITS 0x00000003 560#define MIPS_FPU_ROUND_RN 0x00000000 561#define MIPS_FPU_ROUND_RZ 0x00000001 562#define MIPS_FPU_ROUND_RP 0x00000002 563#define MIPS_FPU_ROUND_RM 0x00000003 564#define MIPS_FPU_STICKY_BITS 0x0000007c 565#define MIPS_FPU_STICKY_INEXACT 0x00000004 566#define MIPS_FPU_STICKY_UNDERFLOW 0x00000008 567#define MIPS_FPU_STICKY_OVERFLOW 0x00000010 568#define MIPS_FPU_STICKY_DIV0 0x00000020 569#define MIPS_FPU_STICKY_INVALID 0x00000040 570#define MIPS_FPU_ENABLE_BITS 0x00000f80 571#define MIPS_FPU_ENABLE_INEXACT 0x00000080 572#define MIPS_FPU_ENABLE_UNDERFLOW 0x00000100 573#define MIPS_FPU_ENABLE_OVERFLOW 0x00000200 574#define MIPS_FPU_ENABLE_DIV0 0x00000400 575#define MIPS_FPU_ENABLE_INVALID 0x00000800 576#define MIPS_FPU_EXCEPTION_BITS 0x0003f000 577#define MIPS_FPU_EXCEPTION_INEXACT 0x00001000 578#define MIPS_FPU_EXCEPTION_UNDERFLOW 0x00002000 579#define MIPS_FPU_EXCEPTION_OVERFLOW 0x00004000 580#define MIPS_FPU_EXCEPTION_DIV0 0x00008000 581#define MIPS_FPU_EXCEPTION_INVALID 0x00010000 582#define MIPS_FPU_EXCEPTION_UNIMPL 0x00020000 583#define MIPS_FPU_COND_BIT 0x00800000 584#define MIPS_FPU_FLUSH_BIT 0x01000000 /* r4k, MBZ on r3k */ 585#define MIPS1_FPC_MBZ_BITS 0xff7c0000 586#define MIPS3_FPC_MBZ_BITS 0xfe7c0000 587 588 589/* 590 * Constants to determine if have a floating point instruction. 591 */ 592#define MIPS_OPCODE_SHIFT 26 593#define MIPS_OPCODE_C1 0x11 594 595 596/* 597 * The low part of the TLB entry. 598 */ 599#define MIPS1_TLB_PFN 0xfffff000 600#define MIPS1_TLB_NON_CACHEABLE_BIT 0x00000800 601#define MIPS1_TLB_DIRTY_BIT 0x00000400 602#define MIPS1_TLB_VALID_BIT 0x00000200 603#define MIPS1_TLB_GLOBAL_BIT 0x00000100 604 605#define MIPS3_TLB_PFN 0x3fffffc0 606#define MIPS3_TLB_ATTR_MASK 0x00000038 607#define MIPS3_TLB_ATTR_SHIFT 3 608#define MIPS3_TLB_DIRTY_BIT 0x00000004 609#define MIPS3_TLB_VALID_BIT 0x00000002 610#define MIPS3_TLB_GLOBAL_BIT 0x00000001 611 612#define MIPS1_TLB_PHYS_PAGE_SHIFT 12 613#define MIPS3_TLB_PHYS_PAGE_SHIFT 6 614#define MIPS1_TLB_PF_NUM MIPS1_TLB_PFN 615#define MIPS3_TLB_PF_NUM MIPS3_TLB_PFN 616#define MIPS1_TLB_MOD_BIT MIPS1_TLB_DIRTY_BIT 617#define MIPS3_TLB_MOD_BIT MIPS3_TLB_DIRTY_BIT 618 619/* 620 * MIPS3_TLB_ATTR values - coherency algorithm: 621 * 0: cacheable, noncoherent, write-through, no write allocate 622 * 1: cacheable, noncoherent, write-through, write allocate 623 * 2: uncached 624 * 3: cacheable, noncoherent, write-back (noncoherent) 625 * 4: cacheable, coherent, write-back, exclusive (exclusive) 626 * 5: cacheable, coherent, write-back, exclusive on write (sharable) 627 * 6: cacheable, coherent, write-back, update on write (update) 628 * 7: uncached, accelerated (gather STORE operations) 629 */ 630#define MIPS3_TLB_ATTR_WT 0 /* IDT */ 631#define MIPS3_TLB_ATTR_WT_WRITEALLOCATE 1 /* IDT */ 632#define MIPS3_TLB_ATTR_UNCACHED 2 /* R4000/R4400, IDT */ 633#define MIPS3_TLB_ATTR_WB_NONCOHERENT 3 /* R4000/R4400, IDT */ 634#define MIPS3_TLB_ATTR_WB_EXCLUSIVE 4 /* R4000/R4400 */ 635#define MIPS3_TLB_ATTR_WB_SHARABLE 5 /* R4000/R4400 */ 636#define MIPS3_TLB_ATTR_WB_UPDATE 6 /* R4000/R4400 */ 637#define MIPS4_TLB_ATTR_UNCACHED_ACCELERATED 7 /* R10000 */ 638 639 640/* 641 * The high part of the TLB entry. 642 */ 643#define MIPS1_TLB_VPN 0xfffff000 644#define MIPS1_TLB_PID 0x00000fc0 645#define MIPS1_TLB_PID_SHIFT 6 646 647#define MIPS3_TLB_VPN2 0xffffe000 648#define MIPS3_TLB_ASID 0x000000ff 649 650#define MIPS1_TLB_VIRT_PAGE_NUM MIPS1_TLB_VPN 651#define MIPS3_TLB_VIRT_PAGE_NUM MIPS3_TLB_VPN2 652#define MIPS3_TLB_PID MIPS3_TLB_ASID 653#define MIPS_TLB_VIRT_PAGE_SHIFT 12 654 655/* 656 * r3000: shift count to put the index in the right spot. 657 */ 658#define MIPS1_TLB_INDEX_SHIFT 8 659 660/* 661 * The first TLB that write random hits. 662 */ 663#define MIPS1_TLB_FIRST_RAND_ENTRY 8 664#define MIPS3_TLB_WIRED_UPAGES 1 665 666/* 667 * The number of process id entries. 668 */ 669#define MIPS1_TLB_NUM_PIDS 64 670#define MIPS3_TLB_NUM_ASIDS 256 671 672/* 673 * Patch codes to hide CPU design differences between MIPS1 and MIPS3. 674 */ 675 676/* XXX simonb: this is before MIPS3_PLUS is defined (and is ugly!) */ 677 678#if !(defined(MIPS3) || defined(MIPS4) || defined(MIPS32) || defined(MIPS64)) \ 679 && defined(MIPS1) /* XXX simonb must be neater! */ 680#define MIPS_TLB_PID_SHIFT MIPS1_TLB_PID_SHIFT 681#define MIPS_TLB_NUM_PIDS MIPS1_TLB_NUM_PIDS 682#endif 683 684#if (defined(MIPS3) || defined(MIPS4) || defined(MIPS32) || defined(MIPS64)) \ 685 && !defined(MIPS1) /* XXX simonb must be neater! */ 686#define MIPS_TLB_PID_SHIFT 0 687#define MIPS_TLB_NUM_PIDS MIPS3_TLB_NUM_ASIDS 688#endif 689 690 691#if !defined(MIPS_TLB_PID_SHIFT) 692#define MIPS_TLB_PID_SHIFT \ 693 ((MIPS_HAS_R4K_MMU) ? 0 : MIPS1_TLB_PID_SHIFT) 694 695#define MIPS_TLB_NUM_PIDS \ 696 ((MIPS_HAS_R4K_MMU) ? MIPS3_TLB_NUM_ASIDS : MIPS1_TLB_NUM_PIDS) 697#endif 698 699/* 700 * CPU processor revision IDs for company ID == 0 (non mips32/64 chips) 701 */ 702#define MIPS_R2000 0x01 /* MIPS R2000 ISA I */ 703#define MIPS_R3000 0x02 /* MIPS R3000 ISA I */ 704#define MIPS_R6000 0x03 /* MIPS R6000 ISA II */ 705#define MIPS_R4000 0x04 /* MIPS R4000/R4400 ISA III */ 706#define MIPS_R3LSI 0x05 /* LSI Logic R3000 derivative ISA I */ 707#define MIPS_R6000A 0x06 /* MIPS R6000A ISA II */ 708#define MIPS_R3IDT 0x07 /* IDT R3041 or RC36100 ISA I */ 709#define MIPS_R10000 0x09 /* MIPS R10000 ISA IV */ 710#define MIPS_R4200 0x0a /* NEC VR4200 ISA III */ 711#define MIPS_R4300 0x0b /* NEC VR4300 ISA III */ 712#define MIPS_R4100 0x0c /* NEC VR4100 ISA III */ 713#define MIPS_R12000 0x0e /* MIPS R12000 ISA IV */ 714#define MIPS_R14000 0x0f /* MIPS R14000 ISA IV */ 715#define MIPS_R8000 0x10 /* MIPS R8000 Blackbird/TFP ISA IV */ 716#define MIPS_RC32300 0x18 /* IDT RC32334,332,355 ISA 32 */ 717#define MIPS_R4600 0x20 /* QED R4600 Orion ISA III */ 718#define MIPS_R4700 0x21 /* QED R4700 Orion ISA III */ 719#define MIPS_R3SONY 0x21 /* Sony R3000 based ISA I */ 720#define MIPS_R4650 0x22 /* QED R4650 ISA III */ 721#define MIPS_TX3900 0x22 /* Toshiba TX39 family ISA I */ 722#define MIPS_R5000 0x23 /* MIPS R5000 ISA IV */ 723#define MIPS_R3NKK 0x23 /* NKK R3000 based ISA I */ 724#define MIPS_RC32364 0x26 /* IDT RC32364 ISA 32 */ 725#define MIPS_RM7000 0x27 /* QED RM7000 ISA IV */ 726#define MIPS_RM5200 0x28 /* QED RM5200s ISA IV */ 727#define MIPS_TX4900 0x2d /* Toshiba TX49 family ISA III */ 728#define MIPS_R5900 0x2e /* Toshiba R5900 (EECore) ISA --- */ 729#define MIPS_RC64470 0x30 /* IDT RC64474/RC64475 ISA III */ 730#define MIPS_TX7900 0x38 /* Toshiba TX79 ISA III+*/ 731#define MIPS_R5400 0x54 /* NEC VR5400 ISA IV */ 732#define MIPS_R5500 0x55 /* NEC VR5500 ISA IV */ 733 734/* 735 * CPU revision IDs for some prehistoric processors. 736 */ 737 738/* For MIPS_R3000 */ 739#define MIPS_REV_R3000 0x20 740#define MIPS_REV_R3000A 0x30 741 742/* For MIPS_TX3900 */ 743#define MIPS_REV_TX3912 0x10 744#define MIPS_REV_TX3922 0x30 745#define MIPS_REV_TX3927 0x40 746 747/* For MIPS_R4000 */ 748#define MIPS_REV_R4000_A 0x00 749#define MIPS_REV_R4000_B 0x22 750#define MIPS_REV_R4000_C 0x30 751#define MIPS_REV_R4400_A 0x40 752#define MIPS_REV_R4400_B 0x50 753#define MIPS_REV_R4400_C 0x60 754 755/* For MIPS_TX4900 */ 756#define MIPS_REV_TX4927 0x22 757 758/* 759 * CPU processor revision IDs for company ID == 1 (MIPS) 760 */ 761#define MIPS_4Kc 0x80 /* MIPS 4Kc ISA 32 */ 762#define MIPS_5Kc 0x81 /* MIPS 5Kc ISA 64 */ 763#define MIPS_20Kc 0x82 /* MIPS 20Kc ISA 64 */ 764#define MIPS_4KEc 0x84 /* MIPS 4KEc ISA 32 */ 765#define MIPS_4KSc 0x86 /* MIPS 4KSc ISA 32 */ 766 767/* 768 * Alchemy (company ID 3) use the processor ID field to donote the CPU core 769 * revision and the company options field do donate the SOC chip type. 770 */ 771/* CPU processor revision IDs */ 772#define MIPS_AU_REV1 0x01 /* Alchemy Au1000 (Rev 1) ISA 32 */ 773#define MIPS_AU_REV2 0x02 /* Alchemy Au1000 (Rev 2) ISA 32 */ 774/* CPU company options IDs */ 775#define MIPS_AU1000 0x00 776#define MIPS_AU1500 0x01 777#define MIPS_AU1100 0x02 778 779/* 780 * CPU processor revision IDs for company ID == 4 (SiByte) 781 */ 782#define MIPS_SB1 0x01 /* SiByte SB1 ISA 64 */ 783 784/* 785 * CPU processor revision IDs for company ID == 5 (SandCraft) 786 */ 787#define MIPS_SR7100 0x04 /* SandCraft SR7100 ISA 64 */ 788 789/* 790 * FPU processor revision ID 791 */ 792#define MIPS_SOFT 0x00 /* Software emulation ISA I */ 793#define MIPS_R2360 0x01 /* MIPS R2360 FPC ISA I */ 794#define MIPS_R2010 0x02 /* MIPS R2010 FPC ISA I */ 795#define MIPS_R3010 0x03 /* MIPS R3010 FPC ISA I */ 796#define MIPS_R6010 0x04 /* MIPS R6010 FPC ISA II */ 797#define MIPS_R4010 0x05 /* MIPS R4010 FPC ISA II */ 798#define MIPS_R31LSI 0x06 /* LSI Logic derivate ISA I */ 799#define MIPS_R3TOSH 0x22 /* Toshiba R3000 based FPU ISA I */ 800 801#ifdef ENABLE_MIPS_TX3900 802#include <mips/r3900regs.h> 803#endif 804#ifdef MIPS3_5900 805#include <mips/r5900regs.h> 806#endif 807#ifdef MIPS64_SB1 808#include <mips/sb1regs.h> 809#endif 810 811#endif /* _MIPS_CPUREGS_H_ */ 812