1 /* $NetBSD: cpuregs.h,v 1.116 2021/11/16 06:11:52 simonb Exp $ */ 2 3 /* 4 * Copyright (c) 2009 Miodrag Vallat. 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 /* 20 * Copyright (c) 1992, 1993 21 * The Regents of the University of California. All rights reserved. 22 * 23 * This code is derived from software contributed to Berkeley by 24 * Ralph Campbell and Rick Macklem. 25 * 26 * Redistribution and use in source and binary forms, with or without 27 * modification, are permitted provided that the following conditions 28 * are met: 29 * 1. Redistributions of source code must retain the above copyright 30 * notice, this list of conditions and the following disclaimer. 31 * 2. Redistributions in binary form must reproduce the above copyright 32 * notice, this list of conditions and the following disclaimer in the 33 * documentation and/or other materials provided with the distribution. 34 * 3. Neither the name of the University nor the names of its contributors 35 * may be used to endorse or promote products derived from this software 36 * without specific prior written permission. 37 * 38 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 39 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 41 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 42 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 43 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 44 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 45 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 46 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 47 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 48 * SUCH DAMAGE. 49 * 50 * @(#)machConst.h 8.1 (Berkeley) 6/10/93 51 * 52 * machConst.h -- 53 * 54 * Machine dependent constants. 55 * 56 * Copyright (C) 1989 Digital Equipment Corporation. 57 * Permission to use, copy, modify, and distribute this software and 58 * its documentation for any purpose and without fee is hereby granted, 59 * provided that the above copyright notice appears in all copies. 60 * Digital Equipment Corporation makes no representations about the 61 * suitability of this software for any purpose. It is provided "as is" 62 * without express or implied warranty. 63 * 64 * from: Header: /sprite/src/kernel/mach/ds3100.md/RCS/machConst.h, 65 * v 9.2 89/10/21 15:55:22 jhh Exp SPRITE (DECWRL) 66 * from: Header: /sprite/src/kernel/mach/ds3100.md/RCS/machAddrs.h, 67 * v 1.2 89/08/15 18:28:21 rab Exp SPRITE (DECWRL) 68 * from: Header: /sprite/src/kernel/vm/ds3100.md/RCS/vmPmaxConst.h, 69 * v 9.1 89/09/18 17:33:00 shirriff Exp SPRITE (DECWRL) 70 */ 71 72 #ifndef _MIPS_CPUREGS_H_ 73 #define _MIPS_CPUREGS_H_ 74 75 #include <sys/cdefs.h> /* For __CONCAT() */ 76 77 #if defined(_KERNEL_OPT) 78 #include "opt_cputype.h" 79 #endif 80 81 /* 82 * Address space. 83 * 32-bit mips CPUS partition their 32-bit address space into four segments: 84 * 85 * kuseg 0x00000000 - 0x7fffffff User virtual mem, mapped 86 * kseg0 0x80000000 - 0x9fffffff Physical memory, cached, unmapped 87 * kseg1 0xa0000000 - 0xbfffffff Physical memory, uncached, unmapped 88 * kseg2 0xc0000000 - 0xffffffff kernel-virtual, mapped 89 * 90 * mips1 physical memory is limited to 512Mbytes, which is 91 * doubly mapped in kseg0 (cached) and kseg1 (uncached.) 92 * Caching of mapped addresses is controlled by bits in the TLB entry. 93 */ 94 95 #ifdef _LP64 96 #define MIPS_XUSEG_START (0L << 62) 97 #define MIPS_XUSEG_P(x) (((uint64_t)(x) >> 62) == 0) 98 #define MIPS_USEG_P(x) ((uintptr_t)(x) < 0x80000000L) 99 #define MIPS_XSSEG_START (1L << 62) 100 #define MIPS_XSSEG_P(x) (((uint64_t)(x) >> 62) == 1) 101 #endif 102 103 /* 104 * MIPS addresses are signed and we defining as negative so that 105 * in LP64 kern they get sign-extended correctly. 106 */ 107 #ifndef _LOCORE 108 #define MIPS_KSEG0_START (-0x7fffffffL-1) /* 0x80000000 */ 109 #define MIPS_KSEG1_START -0x60000000L /* 0xa0000000 */ 110 #define MIPS_KSEG2_START -0x40000000L /* 0xc0000000 */ 111 #define MIPS_MAX_MEM_ADDR -0x42000000L /* 0xbe000000 */ 112 #define MIPS_RESERVED_ADDR -0x40380000L /* 0xbfc80000 */ 113 #endif 114 115 #define MIPS_PHYS_MASK 0x1fffffff 116 117 #define MIPS_KSEG0_TO_PHYS(x) ((uintptr_t)(x) & MIPS_PHYS_MASK) 118 #define MIPS_PHYS_TO_KSEG0(x) ((intptr_t)((x) + MIPS_KSEG0_START)) 119 #define MIPS_KSEG1_TO_PHYS(x) ((uintptr_t)(x) & MIPS_PHYS_MASK) 120 #define MIPS_PHYS_TO_KSEG1(x) ((intptr_t)(x) | (intptr_t)MIPS_KSEG1_START) 121 122 #define MIPS_KSEG0_P(x) (((intptr_t)(x) & ~MIPS_PHYS_MASK) == MIPS_KSEG0_START) 123 #define MIPS_KSEG1_P(x) (((intptr_t)(x) & ~MIPS_PHYS_MASK) == MIPS_KSEG1_START) 124 #define MIPS_KSEG2_P(x) ((uintptr_t)MIPS_KSEG2_START <= (uintptr_t)(x)) 125 126 /* Map virtual address to index in mips3 r4k virtually-indexed cache */ 127 #define MIPS3_VA_TO_CINDEX(x) \ 128 (((intptr_t)(x) & 0xffffff) | MIPS_KSEG0_START) 129 130 #ifndef _LOCORE 131 #define MIPS_XSEG_MASK (0x3fffffffffffffffLL) 132 #define MIPS_XKSEG_START (0x3ULL << 62) 133 #define MIPS_XKSEG_P(x) (((uint64_t)(x) >> 62) == 3) 134 135 #define MIPS_XKPHYS_START (0x2ULL << 62) 136 #define MIPS_PHYS_TO_XKPHYS_UNCACHED(x) \ 137 (MIPS_XKPHYS_START | ((uint64_t)(CCA_UNCACHED) << 59) | (x)) 138 #define MIPS_PHYS_TO_XKPHYS_ACC(x) \ 139 (MIPS_XKPHYS_START | ((uint64_t)(mips_options.mips3_cca_devmem) << 59) | (x)) 140 #define MIPS_PHYS_TO_XKPHYS_CACHED(x) \ 141 (mips_options.mips3_xkphys_cached | (x)) 142 #define MIPS_PHYS_TO_XKPHYS(cca,x) \ 143 (MIPS_XKPHYS_START | ((uint64_t)(cca) << 59) | (x)) 144 #define MIPS_XKPHYS_TO_PHYS(x) ((uint64_t)(x) & 0x07ffffffffffffffLL) 145 #define MIPS_XKPHYS_TO_CCA(x) (((uint64_t)(x) >> 59) & 7) 146 #define MIPS_XKPHYS_P(x) (((uint64_t)(x) >> 62) == 2) 147 #endif /* _LOCORE */ 148 149 #define CCA_UNCACHED 2 150 #define CCA_CACHEABLE 3 /* cacheable non-coherent */ 151 #define CCA_SB_CACHEABLE_COHERENT 5 /* cacheable coherent (SiByte ext) */ 152 #define CCA_ACCEL 7 /* non-cached, write combining */ 153 154 /* CPU dependent mtc0 hazard hook */ 155 #if (MIPS32R2 + MIPS64R2) > 0 156 # if (MIPS1 + MIPS3 + MIPS32 + MIPS64) == 0 157 # define COP0_SYNC sll $0,$0,3 /* EHB */ 158 # define JR_HB_RA .set push; .set mips32r2; jr.hb ra; nop; .set pop 159 # else 160 # define COP0_SYNC sll $0,$0,1; sll $0,$0,1; sll $0,$0,3 161 # define JR_HB_RA sll $0,$0,1; sll $0,$0,1; jr ra; sll $0,$0,3 162 # endif 163 #elif (MIPS32 + MIPS64) > 0 164 # define COP0_SYNC sll $0,$0,1; sll $0,$0,1; sll $0,$0,1 165 # define JR_HB_RA sll $0,$0,1; sll $0,$0,1; jr ra; sll $0,$0,1 166 #elif MIPS3 > 0 167 # define COP0_SYNC nop; nop; nop 168 # define JR_HB_RA nop; nop; jr ra; nop 169 #else 170 # define COP0_SYNC nop 171 # define JR_HB_RA jr ra; nop 172 #endif 173 #define COP0_HAZARD_FPUENABLE nop; nop; nop; nop; 174 175 /* 176 * The bits in the cause register. 177 * 178 * Bits common to r3000 and r4000: 179 * 180 * MIPS_CR_BR_DELAY Exception happened in branch delay slot. 181 * MIPS_CR_COP_ERR Coprocessor error. 182 * MIPS_CR_IP Interrupt pending bits defined below. 183 * (same meaning as in CAUSE register). 184 * MIPS_CR_EXC_CODE The exception type (see exception codes below). 185 * 186 * Differences: 187 * r3k has 4 bits of exception type, r4k has 5 bits. 188 */ 189 #define MIPS_CR_BR_DELAY 0x80000000 190 #define MIPS_CR_COP_ERR 0x30000000 191 #define MIPS_CR_COP_ERR_CU1 1 192 #define MIPS_CR_COP_ERR_CU2 2 193 #define MIPS_CR_COP_ERR_CU3 3 194 #define MIPS1_CR_EXC_CODE 0x0000003C /* four bits */ 195 #define MIPS3_CR_EXC_CODE 0x0000007C /* five bits */ 196 #define MIPS_CR_IP 0x0000FF00 197 #define MIPS_CR_EXC_CODE_SHIFT 2 198 199 /* 200 * The bits in the status register. All bits are active when set to 1. 201 * 202 * R3000 status register fields: 203 * MIPS_SR_COP_USABILITY Control the usability of the four coprocessors. 204 * MIPS_SR_TS TLB shutdown. 205 * 206 * MIPS_SR_INT_IE Master (current) interrupt enable bit. 207 * 208 * Differences: 209 * r3k has cache control is via frobbing SR register bits, whereas the 210 * r4k cache control is via explicit instructions. 211 * r3k has a 3-entry stack of kernel/user bits, whereas the 212 * r4k has kernel/supervisor/user. 213 */ 214 #define MIPS_SR_COP_USABILITY 0xf0000000 215 #define MIPS_SR_COP_0_BIT 0x10000000 216 #define MIPS_SR_COP_1_BIT 0x20000000 217 #define MIPS_SR_COP_2_BIT 0x40000000 218 219 /* r4k and r3k differences, see below */ 220 221 #define MIPS_SR_MX 0x01000000 /* MIPS64 */ 222 #define MIPS_SR_PX 0x00800000 /* MIPS64 */ 223 #define MIPS_SR_BEV 0x00400000 /* Use boot exception vector */ 224 #define MIPS_SR_TS 0x00200000 225 226 /* r4k and r3k differences, see below */ 227 228 #define MIPS_SR_INT_IE 0x00000001 229 /*#define MIPS_SR_MBZ 0x0f8000c0*/ /* Never used, true for r3k */ 230 /*#define MIPS_SR_INT_MASK 0x0000ff00*/ 231 232 233 /* 234 * The R2000/R3000-specific status register bit definitions. 235 * all bits are active when set to 1. 236 * 237 * MIPS_SR_PARITY_ERR Parity error. 238 * MIPS_SR_CACHE_MISS Most recent D-cache load resulted in a miss. 239 * MIPS_SR_PARITY_ZERO Zero replaces outgoing parity bits. 240 * MIPS_SR_SWAP_CACHES Swap I-cache and D-cache. 241 * MIPS_SR_ISOL_CACHES Isolate D-cache from main memory. 242 * Interrupt enable bits defined below. 243 * MIPS_SR_KU_OLD Old kernel/user mode bit. 1 => user mode. 244 * MIPS_SR_INT_ENA_OLD Old interrupt enable bit. 245 * MIPS_SR_KU_PREV Previous kernel/user mode bit. 1 => user mode. 246 * MIPS_SR_INT_ENA_PREV Previous interrupt enable bit. 247 * MIPS_SR_KU_CUR Current kernel/user mode bit. 1 => user mode. 248 */ 249 250 #define MIPS1_PARITY_ERR 0x00100000 251 #define MIPS1_CACHE_MISS 0x00080000 252 #define MIPS1_PARITY_ZERO 0x00040000 253 #define MIPS1_SWAP_CACHES 0x00020000 254 #define MIPS1_ISOL_CACHES 0x00010000 255 256 #define MIPS1_SR_KU_OLD 0x00000020 /* 2nd stacked KU/IE*/ 257 #define MIPS1_SR_INT_ENA_OLD 0x00000010 /* 2nd stacked KU/IE*/ 258 #define MIPS1_SR_KU_PREV 0x00000008 /* 1st stacked KU/IE*/ 259 #define MIPS1_SR_INT_ENA_PREV 0x00000004 /* 1st stacked KU/IE*/ 260 #define MIPS1_SR_KU_CUR 0x00000002 /* current KU */ 261 262 /* backwards compatibility */ 263 #define MIPS_SR_PARITY_ERR MIPS1_PARITY_ERR 264 #define MIPS_SR_CACHE_MISS MIPS1_CACHE_MISS 265 #define MIPS_SR_PARITY_ZERO MIPS1_PARITY_ZERO 266 #define MIPS_SR_SWAP_CACHES MIPS1_SWAP_CACHES 267 #define MIPS_SR_ISOL_CACHES MIPS1_ISOL_CACHES 268 269 #define MIPS_SR_KU_OLD MIPS1_SR_KU_OLD 270 #define MIPS_SR_INT_ENA_OLD MIPS1_SR_INT_ENA_OLD 271 #define MIPS_SR_KU_PREV MIPS1_SR_KU_PREV 272 #define MIPS_SR_KU_CUR MIPS1_SR_KU_CUR 273 #define MIPS_SR_INT_ENA_PREV MIPS1_SR_INT_ENA_PREV 274 275 /* 276 * R4000 status register bit definitions, 277 * where different from r2000/r3000. 278 */ 279 #define MIPS3_SR_XX 0x80000000 280 #define MIPS3_SR_RP 0x08000000 281 #define MIPS3_SR_FR 0x04000000 282 #define MIPS3_SR_RE 0x02000000 283 284 #define MIPS3_SR_DIAG_DL 0x01000000 /* QED 52xx */ 285 #define MIPS3_SR_DIAG_IL 0x00800000 /* QED 52xx */ 286 #define MIPS3_SR_PX 0x00800000 /* MIPS64 */ 287 #define MIPS3_SR_SR 0x00100000 288 #define MIPS3_SR_NMI 0x00080000 /* MIPS32/64 */ 289 #define MIPS3_SR_DIAG_CH 0x00040000 290 #define MIPS3_SR_DIAG_CE 0x00020000 291 #define MIPS3_SR_DIAG_PE 0x00010000 292 #define MIPS3_SR_KX 0x00000080 293 #define MIPS3_SR_SX 0x00000040 294 #define MIPS3_SR_UX 0x00000020 295 #define MIPS3_SR_KSU_MASK 0x00000018 296 #define MIPS3_SR_KSU_USER 0x00000010 297 #define MIPS3_SR_KSU_SUPER 0x00000008 298 #define MIPS3_SR_KSU_KERNEL 0x00000000 299 #define MIPS3_SR_ERL 0x00000004 300 #define MIPS3_SR_EXL 0x00000002 301 302 #define MIPS_SR_SOFT_RESET MIPS3_SR_SOFT_RESET 303 #define MIPS_SR_DIAG_CH MIPS3_SR_DIAG_CH 304 #define MIPS_SR_DIAG_CE MIPS3_SR_DIAG_CE 305 #define MIPS_SR_DIAG_PE MIPS3_SR_DIAG_PE 306 #define MIPS_SR_KX MIPS3_SR_KX 307 #define MIPS_SR_SX MIPS3_SR_SX 308 #define MIPS_SR_UX MIPS3_SR_UX 309 310 #define MIPS_SR_KSU_MASK MIPS3_SR_KSU_MASK 311 #define MIPS_SR_KSU_USER MIPS3_SR_KSU_USER 312 #define MIPS_SR_KSU_SUPER MIPS3_SR_KSU_SUPER 313 #define MIPS_SR_KSU_KERNEL MIPS3_SR_KSU_KERNEL 314 #define MIPS_SR_ERL MIPS3_SR_ERL 315 #define MIPS_SR_EXL MIPS3_SR_EXL 316 317 318 /* 319 * The interrupt masks. 320 * If a bit in the mask is 1 then the interrupt is enabled (or pending). 321 */ 322 #define MIPS_INT_MASK 0xff00 323 #define MIPS_INT_MASK_5 0x8000 324 #define MIPS_INT_MASK_4 0x4000 325 #define MIPS_INT_MASK_3 0x2000 326 #define MIPS_INT_MASK_2 0x1000 327 #define MIPS_INT_MASK_1 0x0800 328 #define MIPS_INT_MASK_0 0x0400 329 #define MIPS_HARD_INT_MASK 0xfc00 330 #define MIPS_SOFT_INT_MASK_1 0x0200 331 #define MIPS_SOFT_INT_MASK_0 0x0100 332 #define MIPS_SOFT_INT_MASK 0x0300 333 #define MIPS_INT_MASK_SHIFT 8 334 335 /* 336 * mips3 CPUs have on-chip timer at INT_MASK_5. Each platform can 337 * choose to enable this interrupt. 338 */ 339 #if defined(MIPS3_ENABLE_CLOCK_INTR) 340 #define MIPS3_INT_MASK MIPS_INT_MASK 341 #define MIPS3_HARD_INT_MASK MIPS_HARD_INT_MASK 342 #else 343 #define MIPS3_INT_MASK (MIPS_INT_MASK & ~MIPS_INT_MASK_5) 344 #define MIPS3_HARD_INT_MASK (MIPS_HARD_INT_MASK & ~MIPS_INT_MASK_5) 345 #endif 346 347 /* 348 * The bits in the context register. 349 */ 350 #define MIPS1_CNTXT_PTE_BASE 0xFFE00000 351 #define MIPS1_CNTXT_BAD_VPN 0x001FFFFC 352 353 #define MIPS3_CNTXT_PTE_BASE 0xFF800000 354 #define MIPS3_CNTXT_BAD_VPN2 0x007FFFF0 355 356 /* 357 * The bits in the MIPS3 config register. 358 * 359 * bit 0..5: R/W, Bit 6..31: R/O 360 */ 361 362 /* kseg0 coherency algorithm - see MIPS3_TLB_ATTR values */ 363 #define MIPS3_CONFIG_K0_MASK 0x00000007 364 365 /* 366 * R/W Update on Store Conditional 367 * 0: Store Conditional uses coherency algorithm specified by TLB 368 * 1: Store Conditional uses cacheable coherent update on write 369 */ 370 #define MIPS3_CONFIG_CU 0x00000008 371 372 #define MIPS3_CONFIG_DB 0x00000010 /* Primary D-cache line size */ 373 #define MIPS3_CONFIG_IB 0x00000020 /* Primary I-cache line size */ 374 #define MIPS3_CONFIG_CACHE_L1_LSIZE(config, bit) \ 375 (((config) & (bit)) ? 32 : 16) 376 377 #define MIPS3_CONFIG_DC_MASK 0x000001c0 /* Primary D-cache size */ 378 #define MIPS3_CONFIG_DC_SHIFT 6 379 #define MIPS3_CONFIG_IC_MASK 0x00000e00 /* Primary I-cache size */ 380 #define MIPS3_CONFIG_IC_SHIFT 9 381 #define MIPS3_CONFIG_C_DEFBASE 0x1000 /* default base 2^12 */ 382 383 /* Cache size mode indication: available only on Vr41xx CPUs */ 384 #define MIPS3_CONFIG_CS 0x00001000 385 #define MIPS3_CONFIG_C_4100BASE 0x0400 /* base is 2^10 if CS=1 */ 386 #define MIPS3_CONFIG_CACHE_SIZE(config, mask, base, shift) \ 387 ((base) << (((config) & (mask)) >> (shift))) 388 389 /* External cache enable: Controls L2 for R5000/Rm527x and L3 for Rm7000 */ 390 #define MIPS3_CONFIG_SE 0x00001000 391 392 /* Block ordering: 0: sequential, 1: sub-block */ 393 #define MIPS3_CONFIG_EB 0x00002000 394 395 /* ECC mode - 0: ECC mode, 1: parity mode */ 396 #define MIPS3_CONFIG_EM 0x00004000 397 398 /* BigEndianMem - 0: kernel and memory are little endian, 1: big endian */ 399 #define MIPS3_CONFIG_BE 0x00008000 400 401 /* Dirty Shared coherency state - 0: enabled, 1: disabled */ 402 #define MIPS3_CONFIG_SM 0x00010000 403 404 /* Secondary Cache - 0: present, 1: not present */ 405 #define MIPS3_CONFIG_SC 0x00020000 406 407 /* System Port width - 0: 64-bit, 1: 32-bit (QED RM523x), 2,3: reserved */ 408 #define MIPS3_CONFIG_EW_MASK 0x000c0000 409 #define MIPS3_CONFIG_EW_SHIFT 18 410 411 /* Secondary Cache port width - 0: 128-bit data path to S-cache, 1: reserved */ 412 #define MIPS3_CONFIG_SW 0x00100000 413 414 /* Split Secondary Cache Mode - 0: I/D mixed, 1: I/D separated by SCAddr(17) */ 415 #define MIPS3_CONFIG_SS 0x00200000 416 417 /* Secondary Cache line size */ 418 #define MIPS3_CONFIG_SB_MASK 0x00c00000 419 #define MIPS3_CONFIG_SB_SHIFT 22 420 #define MIPS3_CONFIG_CACHE_L2_LSIZE(config) \ 421 (0x10 << (((config) & MIPS3_CONFIG_SB_MASK) >> MIPS3_CONFIG_SB_SHIFT)) 422 423 /* Write back data rate */ 424 #define MIPS3_CONFIG_EP_MASK 0x0f000000 425 #define MIPS3_CONFIG_EP_SHIFT 24 426 427 /* System clock ratio - this value is CPU dependent */ 428 #define MIPS3_CONFIG_EC_MASK 0x70000000 429 #define MIPS3_CONFIG_EC_SHIFT 28 430 431 /* Master-Checker Mode - 1: enabled */ 432 #define MIPS3_CONFIG_CM 0x80000000 433 434 /* 435 * The bits in the MIPS4 config register. 436 */ 437 438 /* kseg0 coherency algorithm - see MIPS3_TLB_ATTR values */ 439 #define MIPS4_CONFIG_K0_MASK MIPS3_CONFIG_K0_MASK 440 #define MIPS4_CONFIG_DN_MASK 0x00000018 /* Device number */ 441 #define MIPS4_CONFIG_CT 0x00000020 /* CohPrcReqTar */ 442 #define MIPS4_CONFIG_PE 0x00000040 /* PreElmReq */ 443 #define MIPS4_CONFIG_PM_MASK 0x00000180 /* PreReqMax */ 444 #define MIPS4_CONFIG_EC_MASK 0x00001e00 /* SysClkDiv */ 445 #define MIPS4_CONFIG_SB 0x00002000 /* SCBlkSize */ 446 #define MIPS4_CONFIG_SK 0x00004000 /* SCColEn */ 447 #define MIPS4_CONFIG_BE 0x00008000 /* MemEnd */ 448 #define MIPS4_CONFIG_SS_MASK 0x00070000 /* SCSize */ 449 #define MIPS4_CONFIG_SC_MASK 0x00380000 /* SCClkDiv */ 450 #define MIPS4_CONFIG_RESERVED 0x03c00000 /* Reserved wired 0 */ 451 #define MIPS4_CONFIG_DC_MASK 0x1c000000 /* Primary D-Cache size */ 452 #define MIPS4_CONFIG_IC_MASK 0xe0000000 /* Primary I-Cache size */ 453 454 #define MIPS4_CONFIG_DC_SHIFT 26 455 #define MIPS4_CONFIG_IC_SHIFT 29 456 457 #define MIPS4_CONFIG_CACHE_SIZE(config, mask, base, shift) \ 458 ((base) << (((config) & (mask)) >> (shift))) 459 460 #define MIPS4_CONFIG_CACHE_L2_LSIZE(config) \ 461 (((config) & MIPS4_CONFIG_SB) ? 128 : 64) 462 463 /* 464 * Location of exception vectors. 465 * 466 * Common vectors: reset and UTLB miss. 467 */ 468 #define MIPS_RESET_EXC_VEC MIPS_PHYS_TO_KSEG1(0x1FC00000) 469 #define MIPS_UTLB_MISS_EXC_VEC MIPS_PHYS_TO_KSEG0(0) 470 471 /* 472 * MIPS-1 general exception vector (everything else) 473 */ 474 #define MIPS1_GEN_EXC_VEC MIPS_PHYS_TO_KSEG0(0x0080) 475 476 /* 477 * MIPS-III exception vectors 478 */ 479 #define MIPS3_XTLB_MISS_EXC_VEC MIPS_PHYS_TO_KSEG0(0x0080) 480 #define MIPS3_CACHE_ERR_EXC_VEC MIPS_PHYS_TO_KSEG0(0x0100) 481 #define MIPS3_GEN_EXC_VEC MIPS_PHYS_TO_KSEG0(0x0180) 482 483 /* 484 * MIPS32/MIPS64 (and some MIPS3) dedicated interrupt vector. 485 */ 486 #define MIPS3_INTR_EXC_VEC MIPS_PHYS_TO_KSEG0(0x0200) 487 488 /* 489 * Coprocessor 0 registers: 490 * 491 * v--- width for mips I,III,32,64 492 * (3=32bit, 6=64bit, i=impl dep) 493 * 0 MIPS_COP_0_TLB_INDEX 3333 TLB Index. 494 * 1 MIPS_COP_0_TLB_RANDOM 3333 TLB Random. 495 * 2 MIPS_COP_0_TLB_LOW 3... r3k TLB entry low. 496 * 2 MIPS_COP_0_TLB_LO0 .636 r4k TLB entry low. 497 * 3 MIPS_COP_0_TLB_LO1 .636 r4k TLB entry low, extended. 498 * 4 MIPS_COP_0_TLB_CONTEXT 3636 TLB Context. 499 * 4/2 MIPS_COP_0_USERLOCAL ..36 UserLocal. 500 * 5 MIPS_COP_0_TLB_PG_MASK .333 TLB Page Mask register. 501 * 5/1 MIPS_COP_0_PG_GRAIN ..33 PageGrain register. 502 * 5/5 MIPS_COP_0_PWBASE ..33 Page Walker Base register. 503 * 5/6 MIPS_COP_0_PWFIELD ..33 Page Walker Field register. 504 * 5/7 MIPS_COP_0_PWSIZE ..33 Page Walker Size register. 505 * 6 MIPS_COP_0_TLB_WIRED .333 Wired TLB number. 506 * 6/6 MIPS_COP_0_PWCTL ..33 Page Walker Control register. 507 * 6/6 MIPS_COP_0_EIRR ...6 [RMI] Extended Interrupt Request Register. 508 * 6/7 MIPS_COP_0_EIMR ...6 [RMI] Extended Interrupt Mask Register. 509 * 7 MIPS_COP_0_HWRENA ..33 rdHWR Enable. 510 * 8 MIPS_COP_0_BAD_VADDR 3636 Bad virtual address. 511 * 9 MIPS_COP_0_COUNT .333 Count register. 512 * 9/6 MIPS_COP_0_CVMCNT ...6 [CAVIUM] CvmCtl register. 513 * 9/7 MIPS_COP_0_CVMCTL ...6 [CAVIUM] CvmCount register (64 bit). 514 * 10 MIPS_COP_0_TLB_HI 3636 TLB entry high. 515 * 11 MIPS_COP_0_COMPARE .333 Compare (against Count). 516 * 11/7 MIPS_COP_0_CVMMEMCTL ...6 [CAVIUM] CvmMemCtl register. 517 * 12 MIPS_COP_0_STATUS 3333 Status register. 518 * 12/1 MIPS_COP_0_INTCTL ..33 Interrupt Control. 519 * 12/2 MIPS_COP_0_SRSCTL ..33 Shadow Register Set Selectors. 520 * 12/3 MIPS_COP_0_SRSMAP ..33 Shadow Set Map. 521 * 13 MIPS_COP_0_CAUSE 3333 Exception cause register. 522 * 14 MIPS_COP_0_EXC_PC 3636 Exception PC. 523 * 15 MIPS_COP_0_PRID 3333 Processor revision identifier. 524 * 15/1 MIPS_COP_0_EBASE ..33 Exception Base. 525 * 16 MIPS_COP_0_CONFIG 3333 Configuration register. 526 * 16/1 MIPS_COP_0_CONFIG1 ..33 Configuration register 1. 527 * 16/2 MIPS_COP_0_CONFIG2 ..33 Configuration register 2. 528 * 16/3 MIPS_COP_0_CONFIG3 ..33 Configuration register 3. 529 * 16/4 MIPS_COP_0_CONFIG4 ..33 Configuration register 6. 530 * 16/5 MIPS_COP_0_CONFIG5 ..33 Configuration register 7. 531 * 16/6 MIPS_COP_0_CONFIG6 ..33 Configuration register 6. 532 * 16/6 MIPS_COP_0_CVMMEMCTL2 ...6 [CAVIUM] CvmMemCtl2 register. 533 * 16/7 MIPS_COP_0_CONFIG7 ..33 Configuration register 7. 534 * 16/7 MIPS_COP_0_CVMVMCONFIG ...6 [CAVIUM] CvmVMConfig register. 535 * 17 MIPS_COP_0_LLADDR .336 Load Linked Address. 536 * 18 MIPS_COP_0_WATCH_LO .336 WatchLo register. 537 * 18/1 MIPS_COP_0_WATCH_LO2 ..ii WatchLo 1 register. 538 * 19 MIPS_COP_0_WATCH_HI .333 WatchHi register. 539 * 19/1 MIPS_COP_0_WATCH_HI1 ..ii WatchHi 1 register. 540 * 20 MIPS_COP_0_TLB_XCONTEXT .6.6 TLB XContext register. 541 * 22 MIPS_COP_0_OSSCRATCH ...6 [RMI] OS Scratch register. (select 0..7) 542 * 22 MIPS_COP_0_DIAG ...6 [LOONGSON2] Diagnostic register. 543 * 22 MIPS_COP_0_MCD ...6 [CAVIUM] Multi-Core Debug register. 544 * 23 MIPS_COP_0_DEBUG .... Debug JTAG register. 545 * 24 MIPS_COP_0_DEPC .... DEPC JTAG register. 546 * 25/0 MIPS_COP_0_PERFCNT0_CTL ..ii Performance Counter 0 control register. 547 * 25/1 MIPS_COP_0_PERFCNT0_CNT ..ii Performance Counter 0 value register. 548 * 25/2 MIPS_COP_0_PERFCNT1_CTL ..ii Performance Counter 1 control register. 549 * 25/3 MIPS_COP_0_PERFCNT1_CNT ..ii Performance Counter 1 value register. 550 * 25/4 MIPS_COP_0_PERFCNT0_CTL ..ii Performance Counter 2 control register. 551 * 25/5 MIPS_COP_0_PERFCNT0_CNT ..ii Performance Counter 2 value register. 552 * 25/6 MIPS_COP_0_PERFCNT1_CTL ..ii Performance Counter 3 control register. 553 * 25/7 MIPS_COP_0_PERFCNT1_CNT ..ii Performance Counter 3 value register. 554 * 26 MIPS_COP_0_ECC .3ii ECC / Error Control register. 555 * 27 MIPS_COP_0_CACHE_ERR .3ii Cache Error register. 556 * 27 MIPS_COP_0_CACHE_ERR_I ...6 [CAVIUM] Cache Error register (instr). 557 * 27/1 MIPS_COP_0_CACHE_ERR_D ...6 [CAVIUM] Cache Error register (data). 558 * 27/1 MIPS_COP_0_CACHE_ERR .3ii Cache Error register. 559 * 28/0 MIPS_COP_0_TAG_LO .3ii Cache TagLo register (instr). 560 * 28/1 MIPS_COP_0_DATA_LO ..ii Cache DataLo register (instr). 561 * 28/2 MIPS_COP_0_TAG_LO ..ii Cache TagLo register (data). 562 * 28/3 MIPS_COP_0_DATA_LO ..ii Cache DataLo register (data). 563 * 29/0 MIPS_COP_0_TAG_HI .3ii Cache TagHi register (instr). 564 * 29/1 MIPS_COP_0_DATA_HI ..ii Cache DataHi register (instr). 565 * 29/2 MIPS_COP_0_TAG_HI_DATA ..ii Cache TagHi register (data). 566 * 29/3 MIPS_COP_0_DATA_HI_DATA ..ii Cache DataHi register (data). 567 * 30 MIPS_COP_0_ERROR_PC .636 Error EPC register. 568 * 31 MIPS_COP_0_DESAVE .... DESAVE JTAG register. 569 */ 570 #ifdef _LOCORE 571 #define _(n) __CONCAT($,n) 572 #else 573 #define _(n) n 574 #endif 575 #define MIPS_COP_0_TLB_INDEX _(0) 576 #define MIPS_COP_0_TLB_RANDOM _(1) 577 /* Name and meaning of TLB bits for $2 differ on r3k and r4k. */ 578 579 #define MIPS_COP_0_TLB_CONTEXT _(4) 580 /* $5 and $6 new with MIPS-III */ 581 #define MIPS_COP_0_BAD_VADDR _(8) 582 #define MIPS_COP_0_TLB_HI _(10) 583 #define MIPS_COP_0_STATUS _(12) 584 #define MIPS_COP_0_CAUSE _(13) 585 #define MIPS_COP_0_EXC_PC _(14) 586 #define MIPS_COP_0_PRID _(15) 587 588 /* MIPS-I */ 589 #define MIPS_COP_0_TLB_LOW _(2) 590 591 /* MIPS-III */ 592 #define MIPS_COP_0_TLB_LO0 _(2) 593 #define MIPS_COP_0_TLB_LO1 _(3) 594 595 #define MIPS_COP_0_TLB_PG_MASK _(5) 596 #define MIPS_COP_0_TLB_WIRED _(6) 597 598 #define MIPS_COP_0_COUNT _(9) 599 #define MIPS_COP_0_COMPARE _(11) 600 601 #define MIPS_COP_0_CONFIG _(16) 602 #define MIPS_COP_0_LLADDR _(17) 603 #define MIPS_COP_0_WATCH_LO _(18) 604 #define MIPS_COP_0_WATCH_LO1 _(18), 1 /* MIPS32/64 optional */ 605 #define MIPS_COP_0_WATCH_HI _(19) 606 #define MIPS_COP_0_WATCH_HI1 _(19), 1 /* MIPS32/64 optional */ 607 #define MIPS_COP_0_TLB_XCONTEXT _(20) 608 #define MIPS_COP_0_ECC _(26) 609 #define MIPS_COP_0_CACHE_ERR _(27) 610 #define MIPS_COP_0_CACHE_ERR_I _(27) /* CAVIUM */ 611 #define MIPS_COP_0_CACHE_ERR_D _(27), 1 /* CAVIUM */ 612 #define MIPS_COP_0_TAG_LO _(28) 613 #define MIPS_COP_0_TAG_HI _(29) 614 #define MIPS_COP_0_TAG_HI_DATA _(29), 2 615 #define MIPS_COP_0_ERROR_PC _(30) 616 617 /* MIPS32/64 */ 618 #define MIPS_COP_0_CTXCONFIG _(4), 1 619 #define MIPS_COP_0_USERLOCAL _(4), 2 620 #define MIPS_COP_0_XCTXCONFIG _(4), 3 /* MIPS64 */ 621 #define MIPS_COP_0_PGGRAIN _(5), 1 622 #define MIPS_COP_0_SEGCTL0 _(5), 2 623 #define MIPS_COP_0_SEGCTL1 _(5), 3 624 #define MIPS_COP_0_SEGCTL2 _(5), 4 625 #define MIPS_COP_0_PWBASE _(5), 5 626 #define MIPS_COP_0_PWFIELD _(5), 6 627 #define MIPS_COP_0_PWSIZE _(5), 7 628 #define MIPS_COP_0_PWCTL _(6), 6 629 #define MIPS_COP_0_EIRR _(6), 6 /* RMI */ 630 #define MIPS_COP_0_EIMR _(6), 7 /* RMI */ 631 #define MIPS_COP_0_HWRENA _(7) 632 #define MIPS_COP_0_BADINSTR _(8), 1 633 #define MIPS_COP_0_BADINSTRP _(8), 2 634 #define MIPS_COP_0_CVMCNT _(9), 6 /* CAVIUM */ 635 #define MIPS_COP_0_CVMCTL _(9), 7 /* CAVIUM */ 636 #define MIPS_COP_0_CVMMEMCTL _(11), 7 /* CAVIUM */ 637 #define MIPS_COP_0_INTCTL _(12), 1 638 #define MIPS_COP_0_SRSCTL _(12), 2 639 #define MIPS_COP_0_SRSMAP _(12), 3 640 #define MIPS_COP_0_NESTEDEXC _(13), 5 641 #define MIPS_COP_0_NESTED_EPC _(14), 2 642 #define MIPS_COP_0_EBASE _(15), 1 643 #define MIPS_COP_0_CDMMBASE _(15), 2 644 #define MIPS_COP_0_CMGCRBASE _(15), 3 645 #define MIPS_COP_0_CONFIG1 _(16), 1 646 #define MIPS_COP_0_CONFIG2 _(16), 2 647 #define MIPS_COP_0_CONFIG3 _(16), 3 648 #define MIPS_COP_0_CONFIG4 _(16), 4 649 #define MIPS_COP_0_CONFIG5 _(16), 5 650 #define MIPS_COP_0_CONFIG6 _(16), 6 651 #define MIPS_COP_0_CVMMEMCTL2 _(16), 6 /* CAVIUM */ 652 #define MIPS_COP_0_CONFIG7 _(16), 7 653 #define MIPS_COP_0_CVMVMCONFIG _(16), 7 /* CAVIUM */ 654 #define MIPS_COP_0_OSSCRATCH _(22) /* RMI */ 655 #define MIPS_COP_0_DIAG _(22) /* LOONGSON2 */ 656 #define MIPS_COP_0_MCD _(22) /* CAVIUM */ 657 #define MIPS_COP_0_DEBUG _(23) 658 #define MIPS_COP_0_DEPC _(24) 659 #define MIPS_COP_0_PERFCNT0_CTL _(25) 660 #define MIPS_COP_0_PERFCNT0_CNT _(25), 1 661 #define MIPS_COP_0_PERFCNT1_CTL _(25), 2 662 #define MIPS_COP_0_PERFCNT1_CNT _(25), 3 663 #define MIPS_COP_0_PERFCNT2_CTL _(25), 4 664 #define MIPS_COP_0_PERFCNT2_CNT _(25), 5 665 #define MIPS_COP_0_PERFCNT3_CTL _(25), 6 666 #define MIPS_COP_0_PERFCNT3_CNT _(25), 7 667 #define MIPS_COP_0_DATA_LO _(28), 1 668 #define MIPS_COP_0_DATA_HI _(29), 3 669 #define MIPS_COP_0_DATA_HI_DATA _(29) 670 #define MIPS_COP_0_DESAVE _(31) 671 672 #define MIPS_DIAG_RAS_DISABLE 0x00000001 /* Loongson2 */ 673 #define MIPS_DIAG_BTB_CLEAR 0x00000002 /* Loongson2 */ 674 #define MIPS_DIAG_ITLB_CLEAR 0x00000004 /* Loongson2 */ 675 676 /* 677 * Values for the code field in a break instruction. 678 */ 679 #define MIPS_BREAK_INSTR 0x0000000d 680 #define MIPS_BREAK_VAL_MASK 0x03ff0000 681 #define MIPS_BREAK_VAL_SHIFT 16 682 #define MIPS_BREAK_INTOVERFLOW 6 /* used by gas to indicate int overflow */ 683 #define MIPS_BREAK_INTDIVZERO 7 /* used by gas/gcc to indicate int div by zero */ 684 #define MIPS_BREAK_KDB_VAL 512 685 #define MIPS_BREAK_SSTEP_VAL 513 686 #define MIPS_BREAK_BRKPT_VAL 514 687 #define MIPS_BREAK_SOVER_VAL 515 688 #define MIPS_BREAK_KDB (MIPS_BREAK_INSTR | \ 689 (MIPS_BREAK_KDB_VAL << MIPS_BREAK_VAL_SHIFT)) 690 #define MIPS_BREAK_SSTEP (MIPS_BREAK_INSTR | \ 691 (MIPS_BREAK_SSTEP_VAL << MIPS_BREAK_VAL_SHIFT)) 692 #define MIPS_BREAK_BRKPT (MIPS_BREAK_INSTR | \ 693 (MIPS_BREAK_BRKPT_VAL << MIPS_BREAK_VAL_SHIFT)) 694 #define MIPS_BREAK_SOVER (MIPS_BREAK_INSTR | \ 695 (MIPS_BREAK_SOVER_VAL << MIPS_BREAK_VAL_SHIFT)) 696 697 /* 698 * Minimum and maximum cache sizes. 699 */ 700 #define MIPS_MIN_CACHE_SIZE (16 * 1024) 701 #define MIPS_MAX_CACHE_SIZE (256 * 1024) 702 #define MIPS3_MAX_PCACHE_SIZE (32 * 1024) /* max. primary cache size */ 703 704 /* 705 * The floating point version and status registers. 706 */ 707 #define MIPS_FIR $0 /* FP Implementation and Revision Register */ 708 #define MIPS_FCSR $31 /* FP Control/Status Register */ 709 710 /* 711 * The floating point coprocessor status register bits. 712 */ 713 #define MIPS_FCSR_RM __BITS(1,0) 714 #define MIPS_FCSR_RM_RN 0 /* round to nearest */ 715 #define MIPS_FCSR_RM_RZ 1 /* round towards zero */ 716 #define MIPS_FCSR_RM_RP 2 /* round towards +infinity */ 717 #define MIPS_FCSR_RM_RM 3 /* round towards -infinity */ 718 #define MIPS_FCSR_FLAGS __BITS(6,2) 719 #define MIPS_FCSR_FLAGS_I __BIT(2) /* inexact */ 720 #define MIPS_FCSR_FLAGS_U __BIT(3) /* underflow */ 721 #define MIPS_FCSR_FLAGS_O __BIT(4) /* overflow */ 722 #define MIPS_FCSR_FLAGS_Z __BIT(5) /* divide by zero */ 723 #define MIPS_FCSR_FLAGS_V __BIT(6) /* invalid operation */ 724 #define MIPS_FCSR_ENABLES __BITS(11,7) 725 #define MIPS_FCSR_ENABLES_I __BIT(7) /* inexact */ 726 #define MIPS_FCSR_ENABLES_U __BIT(8) /* underflow */ 727 #define MIPS_FCSR_ENABLES_O __BIT(9) /* overflow */ 728 #define MIPS_FCSR_ENABLES_Z __BIT(10) /* divide by zero */ 729 #define MIPS_FCSR_ENABLES_V __BIT(11) /* invalid operation */ 730 #define MIPS_FCSR_CAUSE __BITS(17,12) 731 #define MIPS_FCSR_CAUSE_I __BIT(12) /* inexact */ 732 #define MIPS_FCSR_CAUSE_U __BIT(13) /* underflow */ 733 #define MIPS_FCSR_CAUSE_O __BIT(14) /* overflow */ 734 #define MIPS_FCSR_CAUSE_Z __BIT(15) /* divide by zero */ 735 #define MIPS_FCSR_CAUSE_V __BIT(16) /* invalid operation */ 736 #define MIPS_FCSR_CAUSE_E __BIT(17) /* unimplemented operation */ 737 #define MIPS_FCSR_NAN_2008 __BIT(18) 738 #define MIPS_FCSR_ABS_2008 __BIT(19) 739 #define MIPS_FCSR_FCC0 __BIT(23) 740 #define MIPS_FCSR_FCC (MIPS_FPU_COND_BIT | __BITS(31,25)) 741 #define MIPS_FCSR_FS __BIT(24) /* r4k+ */ 742 743 744 /* 745 * Constants to determine if have a floating point instruction. 746 */ 747 #define MIPS_OPCODE_SHIFT 26 748 #define MIPS_OPCODE_C1 0x11 749 750 751 /* 752 * The low part of the TLB entry. 753 */ 754 #define MIPS1_TLB_PFN 0xfffff000 755 #define MIPS1_TLB_NON_CACHEABLE_BIT 0x00000800 756 #define MIPS1_TLB_DIRTY_BIT 0x00000400 757 #define MIPS1_TLB_VALID_BIT 0x00000200 758 #define MIPS1_TLB_GLOBAL_BIT 0x00000100 759 760 #define MIPS3_TLB_PFN 0x3fffffc0 761 #define MIPS3_TLB_ATTR_MASK 0x00000038 762 #define MIPS3_TLB_ATTR_SHIFT 3 763 #define MIPS3_TLB_DIRTY_BIT 0x00000004 764 #define MIPS3_TLB_VALID_BIT 0x00000002 765 #define MIPS3_TLB_GLOBAL_BIT 0x00000001 766 767 #define MIPS1_TLB_PHYS_PAGE_SHIFT 12 768 #define MIPS3_TLB_PHYS_PAGE_SHIFT 6 769 #define MIPS1_TLB_PF_NUM MIPS1_TLB_PFN 770 #define MIPS3_TLB_PF_NUM MIPS3_TLB_PFN 771 #define MIPS1_TLB_MOD_BIT MIPS1_TLB_DIRTY_BIT 772 #define MIPS3_TLB_MOD_BIT MIPS3_TLB_DIRTY_BIT 773 774 /* 775 * MIPS3_TLB_ATTR (CCA) values - coherency algorithm: 776 * 0: cacheable, noncoherent, write-through, no write allocate 777 * 1: cacheable, noncoherent, write-through, write allocate 778 * 2: uncached 779 * 3: cacheable, noncoherent, write-back (noncoherent) 780 * 4: cacheable, coherent, write-back, exclusive (exclusive) 781 * 5: cacheable, coherent, write-back, exclusive on write (sharable) 782 * 6: cacheable, coherent, write-back, update on write (update) 783 * 7: uncached, accelerated (gather STORE operations) 784 */ 785 #define MIPS3_TLB_ATTR_WT 0 /* IDT */ 786 #define MIPS3_TLB_ATTR_WT_WRITEALLOCATE 1 /* IDT */ 787 #define MIPS3_TLB_ATTR_UNCACHED 2 /* R4000/R4400, IDT */ 788 #define MIPS3_TLB_ATTR_WB_NONCOHERENT 3 /* R4000/R4400, IDT */ 789 #define MIPS3_TLB_ATTR_WB_EXCLUSIVE 4 /* R4000/R4400 */ 790 #define MIPS3_TLB_ATTR_WB_SHARABLE 5 /* R4000/R4400 */ 791 #define MIPS3_TLB_ATTR_WB_UPDATE 6 /* R4000/R4400 */ 792 #define MIPS4_TLB_ATTR_UNCACHED_ACCELERATED 7 /* R10000 */ 793 794 795 /* 796 * The high part of the TLB entry. 797 */ 798 #define MIPS1_TLB_VPN 0xfffff000 799 #define MIPS1_TLB_PID 0x00000fc0 800 #define MIPS1_TLB_PID_SHIFT 6 801 802 #define MIPS3_TLB_VPN2 0xffffe000 803 #define MIPS3_TLB_EHINV 0x00000400 /* mipsNN R3 */ 804 #define MIPS3_TLB_ASID 0x000000ff 805 806 #define MIPS1_TLB_VIRT_PAGE_NUM MIPS1_TLB_VPN 807 #define MIPS3_TLB_VIRT_PAGE_NUM MIPS3_TLB_VPN2 808 #define MIPS3_TLB_PID MIPS3_TLB_ASID 809 #define MIPS_TLB_VIRT_PAGE_SHIFT 12 810 811 /* 812 * r3000: shift count to put the index in the right spot. 813 */ 814 #define MIPS1_TLB_INDEX_SHIFT 8 815 816 /* 817 * The first TLB that write random hits. 818 */ 819 #define MIPS1_TLB_FIRST_RAND_ENTRY 8 820 #define MIPS3_TLB_WIRED_UPAGES 1 821 822 /* 823 * The number of process id entries. 824 */ 825 #define MIPS1_TLB_NUM_PIDS 64 826 #define MIPS3_TLB_NUM_ASIDS 256 827 828 /* 829 * Patch codes to hide CPU design differences between MIPS1 and MIPS3. 830 */ 831 832 /* XXX simonb: this is before MIPS3_PLUS is defined (and is ugly!) */ 833 834 #if (MIPS3 + MIPS4 + MIPS32 + MIPS32R2 + MIPS64 + MIPS64R2) == 0 && MIPS1 != 0 835 #define MIPS_TLB_PID_SHIFT MIPS1_TLB_PID_SHIFT 836 #define MIPS_TLB_PID MIPS1_TLB_PID 837 #define MIPS_TLB_NUM_PIDS MIPS1_TLB_NUM_PIDS 838 #endif 839 840 #if (MIPS3 + MIPS4 + MIPS32 + MIPS32R2 + MIPS64 + MIPS64R2) != 0 && MIPS1 == 0 841 #define MIPS_TLB_PID_SHIFT 0 842 #define MIPS_TLB_PID MIPS3_TLB_PID 843 #define MIPS_TLB_NUM_PIDS MIPS3_TLB_NUM_ASIDS 844 #endif 845 846 847 #if !defined(MIPS_TLB_PID_SHIFT) 848 #define MIPS_TLB_PID_SHIFT \ 849 ((MIPS_HAS_R4K_MMU) ? 0 : MIPS1_TLB_PID_SHIFT) 850 851 #define MIPS_TLB_PID \ 852 ((MIPS_HAS_R4K_MMU) ? MIPS3_TLB_PID : MIPS1_TLB_PID) 853 854 #define MIPS_TLB_NUM_PIDS \ 855 ((MIPS_HAS_R4K_MMU) ? MIPS3_TLB_NUM_ASIDS : MIPS1_TLB_NUM_PIDS) 856 #endif 857 858 /* 859 * WatchLo/WatchHi watchpoint registers 860 */ 861 #define MIPS_WATCHLO_VADDR32 __BITS(31,3) /* 32-bit addr */ 862 #define MIPS_WATCHLO_VADDR64 __BITS(63,3) /* 64-bit addr */ 863 #define MIPS_WATCHLO_INSN __BIT(2) 864 #define MIPS_WATCHLO_DATA_READ __BIT(1) 865 #define MIPS_WATCHLO_DATA_WRITE __BIT(0) 866 867 #define MIPS_WATCHHI_M __BIT(31) /* next watch reg implemented */ 868 #define MIPS_WATCHHI_G __BIT(30) /* use WatchLo vaddr */ 869 #define MIPS_WATCHHI_EAS __BITS(25,24) /* extended ASID */ 870 #define MIPS_WATCHHI_ASID __BITS(23,16) 871 #define MIPS_WATCHHI_MASK __BITS(11,3) 872 #define MIPS_WATCHHI_INSN MIPS_WATCHLO_INSN 873 #define MIPS_WATCHHI_DATA_READ MIPS_WATCHLO_DATA_READ 874 #define MIPS_WATCHHI_DATA_WRITE MIPS_WATCHLO_DATA_WRITE 875 876 /* 877 * RDHWR register numbers 878 */ 879 #define MIPS_HWR_CPUNUM _(0) /* Which CPU are we on? */ 880 #define MIPS_HWR_SYNCI_STEP _(1) /* Address step size for SYNCI */ 881 #define MIPS_HWR_CC _(2) /* Hi-res cycle counter */ 882 #define MIPS_HWR_CCRES _(3) /* Cycle counter resolution */ 883 #define MIPS_HWR_ULR _(29) /* Userlocal */ 884 #define MIPS_HWR_IMPL30 _(30) /* Implementation dependent use */ 885 #define MIPS_HWR_IMPL31 _(31) /* Implementation dependent use */ 886 887 /* 888 * Bits defined for HWREna (CP0 register 7, select 0). 889 */ 890 #define MIPS_HWRENA_IMPL31 __BIT(MIPS_HWR_IMPL31) 891 #define MIPS_HWRENA_IMPL30 __BIT(MIPS_HWR_IMPL30) 892 #define MIPS_HWRENA_ULR __BIT(MIPS_HWR_ULR) 893 #define MIPS_HWRENA_CCRES __BIT(MIPS_HWR_CCRES) 894 #define MIPS_HWRENA_CC __BIT(MIPS_HWR_CC) 895 #define MIPS_HWRENA_SYNCI_STEP __BIT(MIPS_HWR_SYNCI_STEP) 896 #define MIPS_HWRENA_CPUNUM __BIT(MIPS_HWR_CPUNUM) 897 898 /* 899 * Bits defined for EBASE (CP0 register 15, select 1). 900 */ 901 #define MIPS_EBASE_EXC_BASE_SHIFT 12 902 #define MIPS_EBASE_EXC_BASE __BITS(29, MIPS_EBASE_EXC_BASE_SHIFT) 903 #define MIPS_EBASE_CPUNUM __BITS(9, 0) 904 #define MIPS_EBASE_CPUNUM_WIDTH 10 /* used by asm code */ 905 906 /* 907 * Hints for the prefetch instruction 908 */ 909 910 /* 911 * Prefetched data is expected to be read (not modified) 912 */ 913 #define PREF_LOAD 0 914 #define PREF_LOAD_STREAMED 4 /* but not reused extensively; it */ 915 /* "streams" through cache. */ 916 #define PREF_LOAD_RETAINED 6 /* and reused extensively; it should */ 917 /* be "retained" in the cache. */ 918 919 /* 920 * Prefetched data is expected to be stored or modified 921 */ 922 #define PREF_STORE 1 923 #define PREF_STORE_STREAMED 5 /* but not reused extensively; it */ 924 /* "streams" through cache. */ 925 #define PREF_STORE_RETAINED 7 /* and reused extensively; it should */ 926 /* be "retained" in the cache. */ 927 928 /* 929 * data is no longer expected to be used. For a WB cache, schedule a 930 * writeback of any dirty data and afterwards free the cache lines. 931 */ 932 #define PREF_WB_INV 25 933 #define PREF_NUDGE PREF_WB_INV 934 935 /* 936 * Prepare for writing an entire cache line without the overhead 937 * involved in filling the line from memory. 938 */ 939 #define PREF_PREPAREFORSTORE 30 940 941 /* 942 * CPU processor revision IDs for company ID == 0 (non mips32/64 chips) 943 */ 944 #define MIPS_R2000 0x01 /* MIPS R2000 ISA I */ 945 #define MIPS_R3000 0x02 /* MIPS R3000 ISA I */ 946 #define MIPS_R6000 0x03 /* MIPS R6000 ISA II */ 947 #define MIPS_R4000 0x04 /* MIPS R4000/R4400 ISA III */ 948 #define MIPS_R3LSI 0x05 /* LSI Logic R3000 derivative ISA I */ 949 #define MIPS_R6000A 0x06 /* MIPS R6000A ISA II */ 950 #define MIPS_R3IDT 0x07 /* IDT R3041 or RC36100 ISA I */ 951 #define MIPS_R10000 0x09 /* MIPS R10000 ISA IV */ 952 #define MIPS_R4200 0x0a /* NEC VR4200 ISA III */ 953 #define MIPS_R4300 0x0b /* NEC VR4300 ISA III */ 954 #define MIPS_R4100 0x0c /* NEC VR4100 ISA III */ 955 #define MIPS_R12000 0x0e /* MIPS R12000 ISA IV */ 956 #define MIPS_R14000 0x0f /* MIPS R14000 ISA IV */ 957 #define MIPS_R8000 0x10 /* MIPS R8000 Blackbird/TFP ISA IV */ 958 #define MIPS_RC32300 0x18 /* IDT RC32334,332,355 ISA 32 */ 959 #define MIPS_R4600 0x20 /* QED R4600 Orion ISA III */ 960 #define MIPS_R4700 0x21 /* QED R4700 Orion ISA III */ 961 #define MIPS_R3SONY 0x21 /* Sony R3000 based ISA I */ 962 #define MIPS_R4650 0x22 /* QED R4650 ISA III */ 963 #define MIPS_TX3900 0x22 /* Toshiba TX39 family ISA I */ 964 #define MIPS_R5000 0x23 /* MIPS R5000 ISA IV */ 965 #define MIPS_R3NKK 0x23 /* NKK R3000 based ISA I */ 966 #define MIPS_RC32364 0x26 /* IDT RC32364 ISA 32 */ 967 #define MIPS_RM7000 0x27 /* QED RM7000 ISA IV */ 968 #define MIPS_RM5200 0x28 /* QED RM5200s ISA IV */ 969 #define MIPS_TX4900 0x2d /* Toshiba TX49 family ISA III */ 970 #define MIPS_R5900 0x2e /* Toshiba R5900 (EECore) ISA --- */ 971 #define MIPS_RC64470 0x30 /* IDT RC64474/RC64475 ISA III */ 972 #define MIPS_TX7900 0x38 /* Toshiba TX79 ISA III+*/ 973 #define MIPS_R5400 0x54 /* NEC VR5400 ISA IV */ 974 #define MIPS_R5500 0x55 /* NEC VR5500 ISA IV */ 975 #define MIPS_LOONGSON2 0x63 /* ICT Loongson-2 ISA III */ 976 977 /* 978 * CPU revision IDs for some prehistoric processors. 979 */ 980 981 /* For MIPS_R3000 */ 982 #define MIPS_REV_R2000A 0x16 /* R2000A uses R3000 proc revision */ 983 #define MIPS_REV_R3000 0x20 984 #define MIPS_REV_R3000A 0x30 985 986 /* For MIPS_TX3900 */ 987 #define MIPS_REV_TX3912 0x10 988 #define MIPS_REV_TX3922 0x30 989 #define MIPS_REV_TX3927 0x40 990 991 /* For MIPS_R4000 */ 992 #define MIPS_REV_R4000_A 0x00 993 #define MIPS_REV_R4000_B 0x22 994 #define MIPS_REV_R4000_C 0x30 995 #define MIPS_REV_R4400_A 0x40 996 #define MIPS_REV_R4400_B 0x50 997 #define MIPS_REV_R4400_C 0x60 998 999 /* For MIPS_TX4900 */ 1000 #define MIPS_REV_TX4927 0x22 1001 1002 /* For MIPS_LOONGSON2 */ 1003 #define MIPS_REV_LOONGSON2E 0x02 1004 #define MIPS_REV_LOONGSON2F 0x03 1005 1006 /* 1007 * CPU processor revision IDs for company ID == 1 (MIPS) 1008 */ 1009 #define MIPS_4Kc 0x80 /* MIPS 4Kc ISA 32 */ 1010 #define MIPS_5Kc 0x81 /* MIPS 5Kc ISA 64 */ 1011 #define MIPS_20Kc 0x82 /* MIPS 20Kc ISA 64 */ 1012 #define MIPS_4Kmp 0x83 /* MIPS 4Km/4Kp ISA 32 */ 1013 #define MIPS_4KEc 0x84 /* MIPS 4KEc ISA 32 */ 1014 #define MIPS_4KEmp 0x85 /* MIPS 4KEm/4KEp ISA 32 */ 1015 #define MIPS_4KSc 0x86 /* MIPS 4KSc ISA 32 */ 1016 #define MIPS_M4K 0x87 /* MIPS M4K ISA 32 Rel 2 */ 1017 #define MIPS_25Kf 0x88 /* MIPS 25Kf ISA 64 */ 1018 #define MIPS_5KE 0x89 /* MIPS 5KE ISA 64 Rel 2 */ 1019 #define MIPS_4KEc_R2 0x90 /* MIPS 4KEc_R2 ISA 32 Rel 2 */ 1020 #define MIPS_4KEmp_R2 0x91 /* MIPS 4KEm/4KEp_R2 ISA 32 Rel 2 */ 1021 #define MIPS_4KSd 0x92 /* MIPS 4KSd ISA 32 Rel 2 */ 1022 #define MIPS_24K 0x93 /* MIPS 24Kc/24Kf ISA 32 Rel 2 */ 1023 #define MIPS_34K 0x95 /* MIPS 34K ISA 32 R2 MT */ 1024 #define MIPS_24KE 0x96 /* MIPS 24KEc ISA 32 Rel 2 */ 1025 #define MIPS_74K 0x97 /* MIPS 74Kc/74Kf ISA 32 Rel 2 */ 1026 #define MIPS_1004K 0x99 /* MIPS 1004Kc/1004Kf ISA 32 Rel 2 */ 1027 #define MIPS_1074K 0x9a /* MIPS 1074Kc/1074Kf ISA 32 Rel 2 */ 1028 #define MIPS_interAptiv 0xa1 /* MIPS interAptiv ISA 32 R3 MT */ 1029 1030 /* 1031 * CPU processor revision IDs for company ID == 2 (Broadcom) 1032 */ 1033 #define MIPS_BCM3302 0x90 /* MIPS 4KEc_R2-like? ISA 32 Rel 2 */ 1034 1035 /* 1036 * Alchemy (company ID 3) use the processor ID field to denote the CPU core 1037 * revision and the company options field do donate the SOC chip type. 1038 */ 1039 /* CPU processor revision IDs */ 1040 #define MIPS_AU_REV1 0x01 /* Alchemy Au1000 (Rev 1) ISA 32 */ 1041 #define MIPS_AU_REV2 0x02 /* Alchemy Au1000 (Rev 2) ISA 32 */ 1042 /* CPU company options IDs */ 1043 #define MIPS_AU1000 0x00 1044 #define MIPS_AU1500 0x01 1045 #define MIPS_AU1100 0x02 1046 #define MIPS_AU1550 0x03 1047 1048 /* 1049 * CPU processor revision IDs for company ID == 4 (SiByte) 1050 */ 1051 #define MIPS_SB1 0x01 /* SiByte SB1 ISA 64 */ 1052 #define MIPS_SB1_11 0x11 /* SiByte SB1 (rev 0x11) ISA 64 */ 1053 1054 /* 1055 * CPU processor revision IDs for company ID == 5 (SandCraft) 1056 */ 1057 #define MIPS_SR7100 0x04 /* SandCraft SR7100 ISA 64 */ 1058 1059 /* 1060 * CPU revision IDs for company ID == 12 (RMI) 1061 * note: unlisted Rev values may indicate pre-production silicon 1062 */ 1063 #define MIPS_XLR_B2 0x04 /* RMI XLR Production Rev B2 */ 1064 #define MIPS_XLR_C4 0x91 /* RMI XLR Production Rev C4 */ 1065 1066 /* 1067 * CPU processor IDs for company ID == 12 (RMI) 1068 */ 1069 #define MIPS_XLR308B 0x06 /* RMI XLR308-B ISA 64 */ 1070 #define MIPS_XLR508B 0x07 /* RMI XLR508-B ISA 64 */ 1071 #define MIPS_XLR516B 0x08 /* RMI XLR516-B ISA 64 */ 1072 #define MIPS_XLR532B 0x09 /* RMI XLR532-B ISA 64 */ 1073 #define MIPS_XLR716B 0x0a /* RMI XLR716-B ISA 64 */ 1074 #define MIPS_XLR732B 0x0b /* RMI XLR732-B ISA 64 */ 1075 #define MIPS_XLR732C 0x00 /* RMI XLR732-C ISA 64 */ 1076 #define MIPS_XLR716C 0x02 /* RMI XLR716-C ISA 64 */ 1077 #define MIPS_XLR532C 0x08 /* RMI XLR532-C ISA 64 */ 1078 #define MIPS_XLR516C 0x0a /* RMI XLR516-C ISA 64 */ 1079 #define MIPS_XLR508C 0x0b /* RMI XLR508-C ISA 64 */ 1080 #define MIPS_XLR308C 0x0f /* RMI XLR308-C ISA 64 */ 1081 #define MIPS_XLS616 0x40 /* RMI XLS616 ISA 64 */ 1082 #define MIPS_XLS416 0x44 /* RMI XLS416 ISA 64 */ 1083 #define MIPS_XLS608 0x4A /* RMI XLS608 ISA 64 */ 1084 #define MIPS_XLS408 0x4E /* RMI XLS406 ISA 64 */ 1085 #define MIPS_XLS404 0x4F /* RMI XLS404 ISA 64 */ 1086 #define MIPS_XLS408LITE 0x88 /* RMI XLS408-Lite ISA 64 */ 1087 #define MIPS_XLS404LITE 0x8C /* RMI XLS404-Lite ISA 64 */ 1088 #define MIPS_XLS208 0x8E /* RMI XLS208 ISA 64 */ 1089 #define MIPS_XLS204 0x8F /* RMI XLS204 ISA 64 */ 1090 #define MIPS_XLS108 0xCE /* RMI XLS108 ISA 64 */ 1091 #define MIPS_XLS104 0xCF /* RMI XLS104 ISA 64 */ 1092 1093 /* 1094 * CPU processor IDs for company ID == 13 (Cavium) 1095 */ 1096 #define MIPS_CN38XX 0x00 /* Cavium Octeon CN38XX ISA 64 */ 1097 #define MIPS_CN31XX 0x01 /* Cavium Octeon CN31XX ISA 64 */ 1098 #define MIPS_CN30XX 0x02 /* Cavium Octeon CN30XX ISA 64 */ 1099 #define MIPS_CN58XX 0x03 /* Cavium Octeon CN58XX ISA 64 */ 1100 #define MIPS_CN56XX 0x04 /* Cavium Octeon CN56XX ISA 64 */ 1101 #define MIPS_CN50XX 0x06 /* Cavium Octeon CN50XX ISA 64 */ 1102 #define MIPS_CN52XX 0x07 /* Cavium Octeon CN52XX ISA 64 */ 1103 #define MIPS_CN63XX 0x90 /* Cavium Octeon CN63XX ISA 64 */ 1104 #define MIPS_CN68XX 0x91 /* Cavium Octeon CN68XX ISA 64 */ 1105 #define MIPS_CN66XX 0x92 /* Cavium Octeon CN66XX ISA 64 */ 1106 #define MIPS_CN61XX 0x93 /* Cavium Octeon CN61XX ISA 64 */ 1107 #define MIPS_CNF71XX 0x94 /* Cavium Octeon CNF71XX ISA 64 */ 1108 #define MIPS_CN78XX 0x95 /* Cavium Octeon CN78XX ISA 64 */ 1109 #define MIPS_CN70XX 0x96 /* Cavium Octeon CN70XX ISA 64 */ 1110 #define MIPS_CN73XX 0x97 /* Cavium Octeon CN73XX ISA 64 */ 1111 #define MIPS_CNF75XX 0x98 /* Cavium Octeon CNF75XX ISA 64 */ 1112 1113 /* 1114 * CPU processor revision IDs for company ID == 7 (Microsoft) 1115 */ 1116 #define MIPS_eMIPS 0x04 /* MSR's eMIPS */ 1117 1118 /* 1119 * CPU processor revision IDs for company ID == e1 (Ingenic) 1120 */ 1121 #define MIPS_XBURST 0x02 /* Ingenic XBurst */ 1122 1123 /* 1124 * FPU processor revision ID 1125 */ 1126 #define MIPS_SOFT 0x00 /* Software emulation ISA I */ 1127 #define MIPS_R2360 0x01 /* MIPS R2360 FPC ISA I */ 1128 #define MIPS_R2010 0x02 /* MIPS R2010 FPC ISA I */ 1129 #define MIPS_R3010 0x03 /* MIPS R3010 FPC ISA I */ 1130 #define MIPS_R6010 0x04 /* MIPS R6010 FPC ISA II */ 1131 #define MIPS_R4010 0x05 /* MIPS R4010 FPC ISA II */ 1132 #define MIPS_R31LSI 0x06 /* LSI Logic derivate ISA I */ 1133 #define MIPS_R3TOSH 0x22 /* Toshiba R3000 based FPU ISA I */ 1134 1135 #ifdef ENABLE_MIPS_TX3900 1136 #include <mips/r3900regs.h> 1137 #endif 1138 #ifdef MIPS64_SB1 1139 #include <mips/sb1regs.h> 1140 #endif 1141 #if defined(MIPS64_XLP) || defined(MIPS64_XLR) || defined(MIPS64_XLS) 1142 #include <mips/rmi/rmixlreg.h> 1143 #endif 1144 1145 #ifdef MIPS3_LOONGSON2 1146 /* 1147 * Loongson 2E/2F specific defines 1148 */ 1149 1150 /* 1151 * Address Window registers physical addresses 1152 * 1153 * The Loongson 2F processor has an AXI crossbar with four possible bus 1154 * masters, each one having four programmable address windows. 1155 * 1156 * Each window is defined with three 64-bit registers: 1157 * - a base address register, defining the address in the master address 1158 * space (base register). 1159 * - an address mask register, defining which address bits are valid in this 1160 * window. A given address matches a window if (addr & mask) == base. 1161 * - the location of the window base in the target, as well at the target 1162 * number itself (mmap register). The lower 20 bits of the address are 1163 * forced as zeroes regardless of their value in this register. 1164 * The translated address is thus (addr & ~mask) | (mmap & ~0xfffff). 1165 */ 1166 1167 #define LOONGSON_AWR_BASE_ADDRESS 0x3ff00000ULL 1168 1169 #define LOONGSON_AWR_BASE(master, window) \ 1170 (LOONGSON_AWR_BASE_ADDRESS + (window) * 0x08 + (master) * 0x60 + 0x00) 1171 #define LOONGSON_AWR_SIZE(master, window) \ 1172 (LOONGSON_AWR_BASE_ADDRESS + (window) * 0x08 + (master) * 0x60 + 0x20) 1173 #define LOONGSON_AWR_MMAP(master, window) \ 1174 (LOONGSON_AWR_BASE_ADDRESS + (window) * 0x08 + (master) * 0x60 + 0x40) 1175 1176 /* 1177 * Bits in the diagnostic register 1178 */ 1179 1180 #define COP_0_DIAG_ITLB_CLEAR 0x04 1181 #define COP_0_DIAG_BTB_CLEAR 0x02 1182 #define COP_0_DIAG_RAS_DISABLE 0x01 1183 1184 #endif /* MIPS3_LOONGSON2 */ 1185 1186 #endif /* _MIPS_CPUREGS_H_ */ 1187
Indexes created Sat Sep 20 22:09:52 GMT 2025