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 * Copyright (C) 1994, 1995, 1996, 1997, 2000, 2001 by Ralf Baechle 7 * Copyright (C) 2000 Silicon Graphics, Inc. 8 * Modified for further R[236]000 support by Paul M. Antoine, 1996. 9 * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com 10 * Copyright (C) 2000, 07 MIPS Technologies, Inc. 11 * Copyright (C) 2003, 2004 Maciej W. Rozycki 12 */ 13 #ifndef _ASM_MIPSREGS_H 14 #define _ASM_MIPSREGS_H 15 16 #include <linux/linkage.h> 17 #include <linux/types.h> 18 #include <asm/hazards.h> 19 #include <asm/war.h> 20 21 /* 22 * The following macros are especially useful for __asm__ 23 * inline assembler. 24 */ 25 #ifndef __STR 26 #define __STR(x) #x 27 #endif 28 #ifndef STR 29 #define STR(x) __STR(x) 30 #endif 31 32 /* 33 * Configure language 34 */ 35 #ifdef __ASSEMBLY__ 36 #define _ULCAST_ 37 #else 38 #define _ULCAST_ (unsigned long) 39 #endif 40 41 /* 42 * Coprocessor 0 register names 43 */ 44 #define CP0_INDEX $0 45 #define CP0_RANDOM $1 46 #define CP0_ENTRYLO0 $2 47 #define CP0_ENTRYLO1 $3 48 #define CP0_CONF $3 49 #define CP0_CONTEXT $4 50 #define CP0_PAGEMASK $5 51 #define CP0_WIRED $6 52 #define CP0_INFO $7 53 #define CP0_HWRENA $7, 0 54 #define CP0_BADVADDR $8 55 #define CP0_BADINSTR $8, 1 56 #define CP0_COUNT $9 57 #define CP0_ENTRYHI $10 58 #define CP0_COMPARE $11 59 #define CP0_STATUS $12 60 #define CP0_CAUSE $13 61 #define CP0_EPC $14 62 #define CP0_PRID $15 63 #define CP0_EBASE $15, 1 64 #define CP0_CMGCRBASE $15, 3 65 #define CP0_CONFIG $16 66 #define CP0_CONFIG3 $16, 3 67 #define CP0_CONFIG5 $16, 5 68 #define CP0_LLADDR $17 69 #define CP0_WATCHLO $18 70 #define CP0_WATCHHI $19 71 #define CP0_XCONTEXT $20 72 #define CP0_FRAMEMASK $21 73 #define CP0_DIAGNOSTIC $22 74 #define CP0_DEBUG $23 75 #define CP0_DEPC $24 76 #define CP0_PERFORMANCE $25 77 #define CP0_ECC $26 78 #define CP0_CACHEERR $27 79 #define CP0_TAGLO $28 80 #define CP0_TAGHI $29 81 #define CP0_ERROREPC $30 82 #define CP0_DESAVE $31 83 84 /* 85 * R4640/R4650 cp0 register names. These registers are listed 86 * here only for completeness; without MMU these CPUs are not useable 87 * by Linux. A future ELKS port might take make Linux run on them 88 * though ... 89 */ 90 #define CP0_IBASE $0 91 #define CP0_IBOUND $1 92 #define CP0_DBASE $2 93 #define CP0_DBOUND $3 94 #define CP0_CALG $17 95 #define CP0_IWATCH $18 96 #define CP0_DWATCH $19 97 98 /* 99 * Coprocessor 0 Set 1 register names 100 */ 101 #define CP0_S1_DERRADDR0 $26 102 #define CP0_S1_DERRADDR1 $27 103 #define CP0_S1_INTCONTROL $20 104 105 /* 106 * Coprocessor 0 Set 2 register names 107 */ 108 #define CP0_S2_SRSCTL $12 /* MIPSR2 */ 109 110 /* 111 * Coprocessor 0 Set 3 register names 112 */ 113 #define CP0_S3_SRSMAP $12 /* MIPSR2 */ 114 115 /* 116 * TX39 Series 117 */ 118 #define CP0_TX39_CACHE $7 119 120 121 /* Generic EntryLo bit definitions */ 122 #define ENTRYLO_G (_ULCAST_(1) << 0) 123 #define ENTRYLO_V (_ULCAST_(1) << 1) 124 #define ENTRYLO_D (_ULCAST_(1) << 2) 125 #define ENTRYLO_C_SHIFT 3 126 #define ENTRYLO_C (_ULCAST_(7) << ENTRYLO_C_SHIFT) 127 128 /* R3000 EntryLo bit definitions */ 129 #define R3K_ENTRYLO_G (_ULCAST_(1) << 8) 130 #define R3K_ENTRYLO_V (_ULCAST_(1) << 9) 131 #define R3K_ENTRYLO_D (_ULCAST_(1) << 10) 132 #define R3K_ENTRYLO_N (_ULCAST_(1) << 11) 133 134 /* MIPS32/64 EntryLo bit definitions */ 135 #define MIPS_ENTRYLO_PFN_SHIFT 6 136 #define MIPS_ENTRYLO_XI (_ULCAST_(1) << (BITS_PER_LONG - 2)) 137 #define MIPS_ENTRYLO_RI (_ULCAST_(1) << (BITS_PER_LONG - 1)) 138 139 /* 140 * Values for PageMask register 141 */ 142 #ifdef CONFIG_CPU_VR41XX 143 144 /* Why doesn't stupidity hurt ... */ 145 146 #define PM_1K 0x00000000 147 #define PM_4K 0x00001800 148 #define PM_16K 0x00007800 149 #define PM_64K 0x0001f800 150 #define PM_256K 0x0007f800 151 152 #else 153 154 #define PM_4K 0x00000000 155 #define PM_8K 0x00002000 156 #define PM_16K 0x00006000 157 #define PM_32K 0x0000e000 158 #define PM_64K 0x0001e000 159 #define PM_128K 0x0003e000 160 #define PM_256K 0x0007e000 161 #define PM_512K 0x000fe000 162 #define PM_1M 0x001fe000 163 #define PM_2M 0x003fe000 164 #define PM_4M 0x007fe000 165 #define PM_8M 0x00ffe000 166 #define PM_16M 0x01ffe000 167 #define PM_32M 0x03ffe000 168 #define PM_64M 0x07ffe000 169 #define PM_256M 0x1fffe000 170 #define PM_1G 0x7fffe000 171 172 #endif 173 174 /* 175 * Default page size for a given kernel configuration 176 */ 177 #ifdef CONFIG_PAGE_SIZE_4KB 178 #define PM_DEFAULT_MASK PM_4K 179 #elif defined(CONFIG_PAGE_SIZE_8KB) 180 #define PM_DEFAULT_MASK PM_8K 181 #elif defined(CONFIG_PAGE_SIZE_16KB) 182 #define PM_DEFAULT_MASK PM_16K 183 #elif defined(CONFIG_PAGE_SIZE_32KB) 184 #define PM_DEFAULT_MASK PM_32K 185 #elif defined(CONFIG_PAGE_SIZE_64KB) 186 #define PM_DEFAULT_MASK PM_64K 187 #else 188 #error Bad page size configuration! 189 #endif 190 191 /* 192 * Default huge tlb size for a given kernel configuration 193 */ 194 #ifdef CONFIG_PAGE_SIZE_4KB 195 #define PM_HUGE_MASK PM_1M 196 #elif defined(CONFIG_PAGE_SIZE_8KB) 197 #define PM_HUGE_MASK PM_4M 198 #elif defined(CONFIG_PAGE_SIZE_16KB) 199 #define PM_HUGE_MASK PM_16M 200 #elif defined(CONFIG_PAGE_SIZE_32KB) 201 #define PM_HUGE_MASK PM_64M 202 #elif defined(CONFIG_PAGE_SIZE_64KB) 203 #define PM_HUGE_MASK PM_256M 204 #elif defined(CONFIG_MIPS_HUGE_TLB_SUPPORT) 205 #error Bad page size configuration for hugetlbfs! 206 #endif 207 208 /* 209 * Values used for computation of new tlb entries 210 */ 211 #define PL_4K 12 212 #define PL_16K 14 213 #define PL_64K 16 214 #define PL_256K 18 215 #define PL_1M 20 216 #define PL_4M 22 217 #define PL_16M 24 218 #define PL_64M 26 219 #define PL_256M 28 220 221 /* 222 * PageGrain bits 223 */ 224 #define PG_RIE (_ULCAST_(1) << 31) 225 #define PG_XIE (_ULCAST_(1) << 30) 226 #define PG_ELPA (_ULCAST_(1) << 29) 227 #define PG_ESP (_ULCAST_(1) << 28) 228 #define PG_IEC (_ULCAST_(1) << 27) 229 230 /* MIPS32/64 EntryHI bit definitions */ 231 #define MIPS_ENTRYHI_EHINV (_ULCAST_(1) << 10) 232 233 /* 234 * R4x00 interrupt enable / cause bits 235 */ 236 #define IE_SW0 (_ULCAST_(1) << 8) 237 #define IE_SW1 (_ULCAST_(1) << 9) 238 #define IE_IRQ0 (_ULCAST_(1) << 10) 239 #define IE_IRQ1 (_ULCAST_(1) << 11) 240 #define IE_IRQ2 (_ULCAST_(1) << 12) 241 #define IE_IRQ3 (_ULCAST_(1) << 13) 242 #define IE_IRQ4 (_ULCAST_(1) << 14) 243 #define IE_IRQ5 (_ULCAST_(1) << 15) 244 245 /* 246 * R4x00 interrupt cause bits 247 */ 248 #define C_SW0 (_ULCAST_(1) << 8) 249 #define C_SW1 (_ULCAST_(1) << 9) 250 #define C_IRQ0 (_ULCAST_(1) << 10) 251 #define C_IRQ1 (_ULCAST_(1) << 11) 252 #define C_IRQ2 (_ULCAST_(1) << 12) 253 #define C_IRQ3 (_ULCAST_(1) << 13) 254 #define C_IRQ4 (_ULCAST_(1) << 14) 255 #define C_IRQ5 (_ULCAST_(1) << 15) 256 257 /* 258 * Bitfields in the R4xx0 cp0 status register 259 */ 260 #define ST0_IE 0x00000001 261 #define ST0_EXL 0x00000002 262 #define ST0_ERL 0x00000004 263 #define ST0_KSU 0x00000018 264 # define KSU_USER 0x00000010 265 # define KSU_SUPERVISOR 0x00000008 266 # define KSU_KERNEL 0x00000000 267 #define ST0_UX 0x00000020 268 #define ST0_SX 0x00000040 269 #define ST0_KX 0x00000080 270 #define ST0_DE 0x00010000 271 #define ST0_CE 0x00020000 272 273 /* 274 * Setting c0_status.co enables Hit_Writeback and Hit_Writeback_Invalidate 275 * cacheops in userspace. This bit exists only on RM7000 and RM9000 276 * processors. 277 */ 278 #define ST0_CO 0x08000000 279 280 /* 281 * Bitfields in the R[23]000 cp0 status register. 282 */ 283 #define ST0_IEC 0x00000001 284 #define ST0_KUC 0x00000002 285 #define ST0_IEP 0x00000004 286 #define ST0_KUP 0x00000008 287 #define ST0_IEO 0x00000010 288 #define ST0_KUO 0x00000020 289 /* bits 6 & 7 are reserved on R[23]000 */ 290 #define ST0_ISC 0x00010000 291 #define ST0_SWC 0x00020000 292 #define ST0_CM 0x00080000 293 294 /* 295 * Bits specific to the R4640/R4650 296 */ 297 #define ST0_UM (_ULCAST_(1) << 4) 298 #define ST0_IL (_ULCAST_(1) << 23) 299 #define ST0_DL (_ULCAST_(1) << 24) 300 301 /* 302 * Enable the MIPS MDMX and DSP ASEs 303 */ 304 #define ST0_MX 0x01000000 305 306 /* 307 * Status register bits available in all MIPS CPUs. 308 */ 309 #define ST0_IM 0x0000ff00 310 #define STATUSB_IP0 8 311 #define STATUSF_IP0 (_ULCAST_(1) << 8) 312 #define STATUSB_IP1 9 313 #define STATUSF_IP1 (_ULCAST_(1) << 9) 314 #define STATUSB_IP2 10 315 #define STATUSF_IP2 (_ULCAST_(1) << 10) 316 #define STATUSB_IP3 11 317 #define STATUSF_IP3 (_ULCAST_(1) << 11) 318 #define STATUSB_IP4 12 319 #define STATUSF_IP4 (_ULCAST_(1) << 12) 320 #define STATUSB_IP5 13 321 #define STATUSF_IP5 (_ULCAST_(1) << 13) 322 #define STATUSB_IP6 14 323 #define STATUSF_IP6 (_ULCAST_(1) << 14) 324 #define STATUSB_IP7 15 325 #define STATUSF_IP7 (_ULCAST_(1) << 15) 326 #define STATUSB_IP8 0 327 #define STATUSF_IP8 (_ULCAST_(1) << 0) 328 #define STATUSB_IP9 1 329 #define STATUSF_IP9 (_ULCAST_(1) << 1) 330 #define STATUSB_IP10 2 331 #define STATUSF_IP10 (_ULCAST_(1) << 2) 332 #define STATUSB_IP11 3 333 #define STATUSF_IP11 (_ULCAST_(1) << 3) 334 #define STATUSB_IP12 4 335 #define STATUSF_IP12 (_ULCAST_(1) << 4) 336 #define STATUSB_IP13 5 337 #define STATUSF_IP13 (_ULCAST_(1) << 5) 338 #define STATUSB_IP14 6 339 #define STATUSF_IP14 (_ULCAST_(1) << 6) 340 #define STATUSB_IP15 7 341 #define STATUSF_IP15 (_ULCAST_(1) << 7) 342 #define ST0_CH 0x00040000 343 #define ST0_NMI 0x00080000 344 #define ST0_SR 0x00100000 345 #define ST0_TS 0x00200000 346 #define ST0_BEV 0x00400000 347 #define ST0_RE 0x02000000 348 #define ST0_FR 0x04000000 349 #define ST0_CU 0xf0000000 350 #define ST0_CU0 0x10000000 351 #define ST0_CU1 0x20000000 352 #define ST0_CU2 0x40000000 353 #define ST0_CU3 0x80000000 354 #define ST0_XX 0x80000000 /* MIPS IV naming */ 355 356 /* 357 * Bitfields and bit numbers in the coprocessor 0 IntCtl register. (MIPSR2) 358 */ 359 #define INTCTLB_IPFDC 23 360 #define INTCTLF_IPFDC (_ULCAST_(7) << INTCTLB_IPFDC) 361 #define INTCTLB_IPPCI 26 362 #define INTCTLF_IPPCI (_ULCAST_(7) << INTCTLB_IPPCI) 363 #define INTCTLB_IPTI 29 364 #define INTCTLF_IPTI (_ULCAST_(7) << INTCTLB_IPTI) 365 366 /* 367 * Bitfields and bit numbers in the coprocessor 0 cause register. 368 * 369 * Refer to your MIPS R4xx0 manual, chapter 5 for explanation. 370 */ 371 #define CAUSEB_EXCCODE 2 372 #define CAUSEF_EXCCODE (_ULCAST_(31) << 2) 373 #define CAUSEB_IP 8 374 #define CAUSEF_IP (_ULCAST_(255) << 8) 375 #define CAUSEB_IP0 8 376 #define CAUSEF_IP0 (_ULCAST_(1) << 8) 377 #define CAUSEB_IP1 9 378 #define CAUSEF_IP1 (_ULCAST_(1) << 9) 379 #define CAUSEB_IP2 10 380 #define CAUSEF_IP2 (_ULCAST_(1) << 10) 381 #define CAUSEB_IP3 11 382 #define CAUSEF_IP3 (_ULCAST_(1) << 11) 383 #define CAUSEB_IP4 12 384 #define CAUSEF_IP4 (_ULCAST_(1) << 12) 385 #define CAUSEB_IP5 13 386 #define CAUSEF_IP5 (_ULCAST_(1) << 13) 387 #define CAUSEB_IP6 14 388 #define CAUSEF_IP6 (_ULCAST_(1) << 14) 389 #define CAUSEB_IP7 15 390 #define CAUSEF_IP7 (_ULCAST_(1) << 15) 391 #define CAUSEB_FDCI 21 392 #define CAUSEF_FDCI (_ULCAST_(1) << 21) 393 #define CAUSEB_IV 23 394 #define CAUSEF_IV (_ULCAST_(1) << 23) 395 #define CAUSEB_PCI 26 396 #define CAUSEF_PCI (_ULCAST_(1) << 26) 397 #define CAUSEB_CE 28 398 #define CAUSEF_CE (_ULCAST_(3) << 28) 399 #define CAUSEB_TI 30 400 #define CAUSEF_TI (_ULCAST_(1) << 30) 401 #define CAUSEB_BD 31 402 #define CAUSEF_BD (_ULCAST_(1) << 31) 403 404 /* 405 * Bits in the coprocessor 0 config register. 406 */ 407 /* Generic bits. */ 408 #define CONF_CM_CACHABLE_NO_WA 0 409 #define CONF_CM_CACHABLE_WA 1 410 #define CONF_CM_UNCACHED 2 411 #define CONF_CM_CACHABLE_NONCOHERENT 3 412 #define CONF_CM_CACHABLE_CE 4 413 #define CONF_CM_CACHABLE_COW 5 414 #define CONF_CM_CACHABLE_CUW 6 415 #define CONF_CM_CACHABLE_ACCELERATED 7 416 #define CONF_CM_CMASK 7 417 #define CONF_BE (_ULCAST_(1) << 15) 418 419 /* Bits common to various processors. */ 420 #define CONF_CU (_ULCAST_(1) << 3) 421 #define CONF_DB (_ULCAST_(1) << 4) 422 #define CONF_IB (_ULCAST_(1) << 5) 423 #define CONF_DC (_ULCAST_(7) << 6) 424 #define CONF_IC (_ULCAST_(7) << 9) 425 #define CONF_EB (_ULCAST_(1) << 13) 426 #define CONF_EM (_ULCAST_(1) << 14) 427 #define CONF_SM (_ULCAST_(1) << 16) 428 #define CONF_SC (_ULCAST_(1) << 17) 429 #define CONF_EW (_ULCAST_(3) << 18) 430 #define CONF_EP (_ULCAST_(15)<< 24) 431 #define CONF_EC (_ULCAST_(7) << 28) 432 #define CONF_CM (_ULCAST_(1) << 31) 433 434 /* Bits specific to the R4xx0. */ 435 #define R4K_CONF_SW (_ULCAST_(1) << 20) 436 #define R4K_CONF_SS (_ULCAST_(1) << 21) 437 #define R4K_CONF_SB (_ULCAST_(3) << 22) 438 439 /* Bits specific to the R5000. */ 440 #define R5K_CONF_SE (_ULCAST_(1) << 12) 441 #define R5K_CONF_SS (_ULCAST_(3) << 20) 442 443 /* Bits specific to the RM7000. */ 444 #define RM7K_CONF_SE (_ULCAST_(1) << 3) 445 #define RM7K_CONF_TE (_ULCAST_(1) << 12) 446 #define RM7K_CONF_CLK (_ULCAST_(1) << 16) 447 #define RM7K_CONF_TC (_ULCAST_(1) << 17) 448 #define RM7K_CONF_SI (_ULCAST_(3) << 20) 449 #define RM7K_CONF_SC (_ULCAST_(1) << 31) 450 451 /* Bits specific to the R10000. */ 452 #define R10K_CONF_DN (_ULCAST_(3) << 3) 453 #define R10K_CONF_CT (_ULCAST_(1) << 5) 454 #define R10K_CONF_PE (_ULCAST_(1) << 6) 455 #define R10K_CONF_PM (_ULCAST_(3) << 7) 456 #define R10K_CONF_EC (_ULCAST_(15)<< 9) 457 #define R10K_CONF_SB (_ULCAST_(1) << 13) 458 #define R10K_CONF_SK (_ULCAST_(1) << 14) 459 #define R10K_CONF_SS (_ULCAST_(7) << 16) 460 #define R10K_CONF_SC (_ULCAST_(7) << 19) 461 #define R10K_CONF_DC (_ULCAST_(7) << 26) 462 #define R10K_CONF_IC (_ULCAST_(7) << 29) 463 464 /* Bits specific to the VR41xx. */ 465 #define VR41_CONF_CS (_ULCAST_(1) << 12) 466 #define VR41_CONF_P4K (_ULCAST_(1) << 13) 467 #define VR41_CONF_BP (_ULCAST_(1) << 16) 468 #define VR41_CONF_M16 (_ULCAST_(1) << 20) 469 #define VR41_CONF_AD (_ULCAST_(1) << 23) 470 471 /* Bits specific to the R30xx. */ 472 #define R30XX_CONF_FDM (_ULCAST_(1) << 19) 473 #define R30XX_CONF_REV (_ULCAST_(1) << 22) 474 #define R30XX_CONF_AC (_ULCAST_(1) << 23) 475 #define R30XX_CONF_RF (_ULCAST_(1) << 24) 476 #define R30XX_CONF_HALT (_ULCAST_(1) << 25) 477 #define R30XX_CONF_FPINT (_ULCAST_(7) << 26) 478 #define R30XX_CONF_DBR (_ULCAST_(1) << 29) 479 #define R30XX_CONF_SB (_ULCAST_(1) << 30) 480 #define R30XX_CONF_LOCK (_ULCAST_(1) << 31) 481 482 /* Bits specific to the TX49. */ 483 #define TX49_CONF_DC (_ULCAST_(1) << 16) 484 #define TX49_CONF_IC (_ULCAST_(1) << 17) /* conflict with CONF_SC */ 485 #define TX49_CONF_HALT (_ULCAST_(1) << 18) 486 #define TX49_CONF_CWFON (_ULCAST_(1) << 27) 487 488 /* Bits specific to the MIPS32/64 PRA. */ 489 #define MIPS_CONF_MT (_ULCAST_(7) << 7) 490 #define MIPS_CONF_MT_TLB (_ULCAST_(1) << 7) 491 #define MIPS_CONF_MT_FTLB (_ULCAST_(4) << 7) 492 #define MIPS_CONF_AR (_ULCAST_(7) << 10) 493 #define MIPS_CONF_AT (_ULCAST_(3) << 13) 494 #define MIPS_CONF_M (_ULCAST_(1) << 31) 495 496 /* 497 * Bits in the MIPS32/64 PRA coprocessor 0 config registers 1 and above. 498 */ 499 #define MIPS_CONF1_FP (_ULCAST_(1) << 0) 500 #define MIPS_CONF1_EP (_ULCAST_(1) << 1) 501 #define MIPS_CONF1_CA (_ULCAST_(1) << 2) 502 #define MIPS_CONF1_WR (_ULCAST_(1) << 3) 503 #define MIPS_CONF1_PC (_ULCAST_(1) << 4) 504 #define MIPS_CONF1_MD (_ULCAST_(1) << 5) 505 #define MIPS_CONF1_C2 (_ULCAST_(1) << 6) 506 #define MIPS_CONF1_DA_SHF 7 507 #define MIPS_CONF1_DA_SZ 3 508 #define MIPS_CONF1_DA (_ULCAST_(7) << 7) 509 #define MIPS_CONF1_DL_SHF 10 510 #define MIPS_CONF1_DL_SZ 3 511 #define MIPS_CONF1_DL (_ULCAST_(7) << 10) 512 #define MIPS_CONF1_DS_SHF 13 513 #define MIPS_CONF1_DS_SZ 3 514 #define MIPS_CONF1_DS (_ULCAST_(7) << 13) 515 #define MIPS_CONF1_IA_SHF 16 516 #define MIPS_CONF1_IA_SZ 3 517 #define MIPS_CONF1_IA (_ULCAST_(7) << 16) 518 #define MIPS_CONF1_IL_SHF 19 519 #define MIPS_CONF1_IL_SZ 3 520 #define MIPS_CONF1_IL (_ULCAST_(7) << 19) 521 #define MIPS_CONF1_IS_SHF 22 522 #define MIPS_CONF1_IS_SZ 3 523 #define MIPS_CONF1_IS (_ULCAST_(7) << 22) 524 #define MIPS_CONF1_TLBS_SHIFT (25) 525 #define MIPS_CONF1_TLBS_SIZE (6) 526 #define MIPS_CONF1_TLBS (_ULCAST_(63) << MIPS_CONF1_TLBS_SHIFT) 527 528 #define MIPS_CONF2_SA (_ULCAST_(15)<< 0) 529 #define MIPS_CONF2_SL (_ULCAST_(15)<< 4) 530 #define MIPS_CONF2_SS (_ULCAST_(15)<< 8) 531 #define MIPS_CONF2_SU (_ULCAST_(15)<< 12) 532 #define MIPS_CONF2_TA (_ULCAST_(15)<< 16) 533 #define MIPS_CONF2_TL (_ULCAST_(15)<< 20) 534 #define MIPS_CONF2_TS (_ULCAST_(15)<< 24) 535 #define MIPS_CONF2_TU (_ULCAST_(7) << 28) 536 537 #define MIPS_CONF3_TL (_ULCAST_(1) << 0) 538 #define MIPS_CONF3_SM (_ULCAST_(1) << 1) 539 #define MIPS_CONF3_MT (_ULCAST_(1) << 2) 540 #define MIPS_CONF3_CDMM (_ULCAST_(1) << 3) 541 #define MIPS_CONF3_SP (_ULCAST_(1) << 4) 542 #define MIPS_CONF3_VINT (_ULCAST_(1) << 5) 543 #define MIPS_CONF3_VEIC (_ULCAST_(1) << 6) 544 #define MIPS_CONF3_LPA (_ULCAST_(1) << 7) 545 #define MIPS_CONF3_ITL (_ULCAST_(1) << 8) 546 #define MIPS_CONF3_CTXTC (_ULCAST_(1) << 9) 547 #define MIPS_CONF3_DSP (_ULCAST_(1) << 10) 548 #define MIPS_CONF3_DSP2P (_ULCAST_(1) << 11) 549 #define MIPS_CONF3_RXI (_ULCAST_(1) << 12) 550 #define MIPS_CONF3_ULRI (_ULCAST_(1) << 13) 551 #define MIPS_CONF3_ISA (_ULCAST_(3) << 14) 552 #define MIPS_CONF3_ISA_OE (_ULCAST_(1) << 16) 553 #define MIPS_CONF3_MCU (_ULCAST_(1) << 17) 554 #define MIPS_CONF3_MMAR (_ULCAST_(7) << 18) 555 #define MIPS_CONF3_IPLW (_ULCAST_(3) << 21) 556 #define MIPS_CONF3_VZ (_ULCAST_(1) << 23) 557 #define MIPS_CONF3_PW (_ULCAST_(1) << 24) 558 #define MIPS_CONF3_SC (_ULCAST_(1) << 25) 559 #define MIPS_CONF3_BI (_ULCAST_(1) << 26) 560 #define MIPS_CONF3_BP (_ULCAST_(1) << 27) 561 #define MIPS_CONF3_MSA (_ULCAST_(1) << 28) 562 #define MIPS_CONF3_CMGCR (_ULCAST_(1) << 29) 563 #define MIPS_CONF3_BPG (_ULCAST_(1) << 30) 564 565 #define MIPS_CONF4_MMUSIZEEXT_SHIFT (0) 566 #define MIPS_CONF4_MMUSIZEEXT (_ULCAST_(255) << 0) 567 #define MIPS_CONF4_FTLBSETS_SHIFT (0) 568 #define MIPS_CONF4_FTLBSETS (_ULCAST_(15) << MIPS_CONF4_FTLBSETS_SHIFT) 569 #define MIPS_CONF4_FTLBWAYS_SHIFT (4) 570 #define MIPS_CONF4_FTLBWAYS (_ULCAST_(15) << MIPS_CONF4_FTLBWAYS_SHIFT) 571 #define MIPS_CONF4_FTLBPAGESIZE_SHIFT (8) 572 /* bits 10:8 in FTLB-only configurations */ 573 #define MIPS_CONF4_FTLBPAGESIZE (_ULCAST_(7) << MIPS_CONF4_FTLBPAGESIZE_SHIFT) 574 /* bits 12:8 in VTLB-FTLB only configurations */ 575 #define MIPS_CONF4_VFTLBPAGESIZE (_ULCAST_(31) << MIPS_CONF4_FTLBPAGESIZE_SHIFT) 576 #define MIPS_CONF4_MMUEXTDEF (_ULCAST_(3) << 14) 577 #define MIPS_CONF4_MMUEXTDEF_MMUSIZEEXT (_ULCAST_(1) << 14) 578 #define MIPS_CONF4_MMUEXTDEF_FTLBSIZEEXT (_ULCAST_(2) << 14) 579 #define MIPS_CONF4_MMUEXTDEF_VTLBSIZEEXT (_ULCAST_(3) << 14) 580 #define MIPS_CONF4_KSCREXIST (_ULCAST_(255) << 16) 581 #define MIPS_CONF4_VTLBSIZEEXT_SHIFT (24) 582 #define MIPS_CONF4_VTLBSIZEEXT (_ULCAST_(15) << MIPS_CONF4_VTLBSIZEEXT_SHIFT) 583 #define MIPS_CONF4_AE (_ULCAST_(1) << 28) 584 #define MIPS_CONF4_IE (_ULCAST_(3) << 29) 585 #define MIPS_CONF4_TLBINV (_ULCAST_(2) << 29) 586 587 #define MIPS_CONF5_NF (_ULCAST_(1) << 0) 588 #define MIPS_CONF5_UFR (_ULCAST_(1) << 2) 589 #define MIPS_CONF5_MRP (_ULCAST_(1) << 3) 590 #define MIPS_CONF5_LLB (_ULCAST_(1) << 4) 591 #define MIPS_CONF5_MVH (_ULCAST_(1) << 5) 592 #define MIPS_CONF5_FRE (_ULCAST_(1) << 8) 593 #define MIPS_CONF5_UFE (_ULCAST_(1) << 9) 594 #define MIPS_CONF5_MSAEN (_ULCAST_(1) << 27) 595 #define MIPS_CONF5_EVA (_ULCAST_(1) << 28) 596 #define MIPS_CONF5_CV (_ULCAST_(1) << 29) 597 #define MIPS_CONF5_K (_ULCAST_(1) << 30) 598 599 #define MIPS_CONF6_SYND (_ULCAST_(1) << 13) 600 /* proAptiv FTLB on/off bit */ 601 #define MIPS_CONF6_FTLBEN (_ULCAST_(1) << 15) 602 /* FTLB probability bits */ 603 #define MIPS_CONF6_FTLBP_SHIFT (16) 604 605 #define MIPS_CONF7_WII (_ULCAST_(1) << 31) 606 607 #define MIPS_CONF7_RPS (_ULCAST_(1) << 2) 608 609 #define MIPS_CONF7_IAR (_ULCAST_(1) << 10) 610 #define MIPS_CONF7_AR (_ULCAST_(1) << 16) 611 /* FTLB probability bits for R6 */ 612 #define MIPS_CONF7_FTLBP_SHIFT (18) 613 614 /* MAAR bit definitions */ 615 #define MIPS_MAAR_ADDR ((BIT_ULL(BITS_PER_LONG - 12) - 1) << 12) 616 #define MIPS_MAAR_ADDR_SHIFT 12 617 #define MIPS_MAAR_S (_ULCAST_(1) << 1) 618 #define MIPS_MAAR_V (_ULCAST_(1) << 0) 619 620 /* CMGCRBase bit definitions */ 621 #define MIPS_CMGCRB_BASE 11 622 #define MIPS_CMGCRF_BASE (~_ULCAST_((1 << MIPS_CMGCRB_BASE) - 1)) 623 624 /* 625 * Bits in the MIPS32 Memory Segmentation registers. 626 */ 627 #define MIPS_SEGCFG_PA_SHIFT 9 628 #define MIPS_SEGCFG_PA (_ULCAST_(127) << MIPS_SEGCFG_PA_SHIFT) 629 #define MIPS_SEGCFG_AM_SHIFT 4 630 #define MIPS_SEGCFG_AM (_ULCAST_(7) << MIPS_SEGCFG_AM_SHIFT) 631 #define MIPS_SEGCFG_EU_SHIFT 3 632 #define MIPS_SEGCFG_EU (_ULCAST_(1) << MIPS_SEGCFG_EU_SHIFT) 633 #define MIPS_SEGCFG_C_SHIFT 0 634 #define MIPS_SEGCFG_C (_ULCAST_(7) << MIPS_SEGCFG_C_SHIFT) 635 636 #define MIPS_SEGCFG_UUSK _ULCAST_(7) 637 #define MIPS_SEGCFG_USK _ULCAST_(5) 638 #define MIPS_SEGCFG_MUSUK _ULCAST_(4) 639 #define MIPS_SEGCFG_MUSK _ULCAST_(3) 640 #define MIPS_SEGCFG_MSK _ULCAST_(2) 641 #define MIPS_SEGCFG_MK _ULCAST_(1) 642 #define MIPS_SEGCFG_UK _ULCAST_(0) 643 644 #define MIPS_PWFIELD_GDI_SHIFT 24 645 #define MIPS_PWFIELD_GDI_MASK 0x3f000000 646 #define MIPS_PWFIELD_UDI_SHIFT 18 647 #define MIPS_PWFIELD_UDI_MASK 0x00fc0000 648 #define MIPS_PWFIELD_MDI_SHIFT 12 649 #define MIPS_PWFIELD_MDI_MASK 0x0003f000 650 #define MIPS_PWFIELD_PTI_SHIFT 6 651 #define MIPS_PWFIELD_PTI_MASK 0x00000fc0 652 #define MIPS_PWFIELD_PTEI_SHIFT 0 653 #define MIPS_PWFIELD_PTEI_MASK 0x0000003f 654 655 #define MIPS_PWSIZE_GDW_SHIFT 24 656 #define MIPS_PWSIZE_GDW_MASK 0x3f000000 657 #define MIPS_PWSIZE_UDW_SHIFT 18 658 #define MIPS_PWSIZE_UDW_MASK 0x00fc0000 659 #define MIPS_PWSIZE_MDW_SHIFT 12 660 #define MIPS_PWSIZE_MDW_MASK 0x0003f000 661 #define MIPS_PWSIZE_PTW_SHIFT 6 662 #define MIPS_PWSIZE_PTW_MASK 0x00000fc0 663 #define MIPS_PWSIZE_PTEW_SHIFT 0 664 #define MIPS_PWSIZE_PTEW_MASK 0x0000003f 665 666 #define MIPS_PWCTL_PWEN_SHIFT 31 667 #define MIPS_PWCTL_PWEN_MASK 0x80000000 668 #define MIPS_PWCTL_DPH_SHIFT 7 669 #define MIPS_PWCTL_DPH_MASK 0x00000080 670 #define MIPS_PWCTL_HUGEPG_SHIFT 6 671 #define MIPS_PWCTL_HUGEPG_MASK 0x00000060 672 #define MIPS_PWCTL_PSN_SHIFT 0 673 #define MIPS_PWCTL_PSN_MASK 0x0000003f 674 675 /* CDMMBase register bit definitions */ 676 #define MIPS_CDMMBASE_SIZE_SHIFT 0 677 #define MIPS_CDMMBASE_SIZE (_ULCAST_(511) << MIPS_CDMMBASE_SIZE_SHIFT) 678 #define MIPS_CDMMBASE_CI (_ULCAST_(1) << 9) 679 #define MIPS_CDMMBASE_EN (_ULCAST_(1) << 10) 680 #define MIPS_CDMMBASE_ADDR_SHIFT 11 681 #define MIPS_CDMMBASE_ADDR_START 15 682 683 /* 684 * Bitfields in the TX39 family CP0 Configuration Register 3 685 */ 686 #define TX39_CONF_ICS_SHIFT 19 687 #define TX39_CONF_ICS_MASK 0x00380000 688 #define TX39_CONF_ICS_1KB 0x00000000 689 #define TX39_CONF_ICS_2KB 0x00080000 690 #define TX39_CONF_ICS_4KB 0x00100000 691 #define TX39_CONF_ICS_8KB 0x00180000 692 #define TX39_CONF_ICS_16KB 0x00200000 693 694 #define TX39_CONF_DCS_SHIFT 16 695 #define TX39_CONF_DCS_MASK 0x00070000 696 #define TX39_CONF_DCS_1KB 0x00000000 697 #define TX39_CONF_DCS_2KB 0x00010000 698 #define TX39_CONF_DCS_4KB 0x00020000 699 #define TX39_CONF_DCS_8KB 0x00030000 700 #define TX39_CONF_DCS_16KB 0x00040000 701 702 #define TX39_CONF_CWFON 0x00004000 703 #define TX39_CONF_WBON 0x00002000 704 #define TX39_CONF_RF_SHIFT 10 705 #define TX39_CONF_RF_MASK 0x00000c00 706 #define TX39_CONF_DOZE 0x00000200 707 #define TX39_CONF_HALT 0x00000100 708 #define TX39_CONF_LOCK 0x00000080 709 #define TX39_CONF_ICE 0x00000020 710 #define TX39_CONF_DCE 0x00000010 711 #define TX39_CONF_IRSIZE_SHIFT 2 712 #define TX39_CONF_IRSIZE_MASK 0x0000000c 713 #define TX39_CONF_DRSIZE_SHIFT 0 714 #define TX39_CONF_DRSIZE_MASK 0x00000003 715 716 /* 717 * Interesting Bits in the R10K CP0 Branch Diagnostic Register 718 */ 719 /* Disable Branch Target Address Cache */ 720 #define R10K_DIAG_D_BTAC (_ULCAST_(1) << 27) 721 /* Enable Branch Prediction Global History */ 722 #define R10K_DIAG_E_GHIST (_ULCAST_(1) << 26) 723 /* Disable Branch Return Cache */ 724 #define R10K_DIAG_D_BRC (_ULCAST_(1) << 22) 725 726 /* 727 * Coprocessor 1 (FPU) register names 728 */ 729 #define CP1_REVISION $0 730 #define CP1_UFR $1 731 #define CP1_UNFR $4 732 #define CP1_FCCR $25 733 #define CP1_FEXR $26 734 #define CP1_FENR $28 735 #define CP1_STATUS $31 736 737 738 /* 739 * Bits in the MIPS32/64 coprocessor 1 (FPU) revision register. 740 */ 741 #define MIPS_FPIR_S (_ULCAST_(1) << 16) 742 #define MIPS_FPIR_D (_ULCAST_(1) << 17) 743 #define MIPS_FPIR_PS (_ULCAST_(1) << 18) 744 #define MIPS_FPIR_3D (_ULCAST_(1) << 19) 745 #define MIPS_FPIR_W (_ULCAST_(1) << 20) 746 #define MIPS_FPIR_L (_ULCAST_(1) << 21) 747 #define MIPS_FPIR_F64 (_ULCAST_(1) << 22) 748 #define MIPS_FPIR_HAS2008 (_ULCAST_(1) << 23) 749 #define MIPS_FPIR_UFRP (_ULCAST_(1) << 28) 750 #define MIPS_FPIR_FREP (_ULCAST_(1) << 29) 751 752 /* 753 * Bits in the MIPS32/64 coprocessor 1 (FPU) condition codes register. 754 */ 755 #define MIPS_FCCR_CONDX_S 0 756 #define MIPS_FCCR_CONDX (_ULCAST_(255) << MIPS_FCCR_CONDX_S) 757 #define MIPS_FCCR_COND0_S 0 758 #define MIPS_FCCR_COND0 (_ULCAST_(1) << MIPS_FCCR_COND0_S) 759 #define MIPS_FCCR_COND1_S 1 760 #define MIPS_FCCR_COND1 (_ULCAST_(1) << MIPS_FCCR_COND1_S) 761 #define MIPS_FCCR_COND2_S 2 762 #define MIPS_FCCR_COND2 (_ULCAST_(1) << MIPS_FCCR_COND2_S) 763 #define MIPS_FCCR_COND3_S 3 764 #define MIPS_FCCR_COND3 (_ULCAST_(1) << MIPS_FCCR_COND3_S) 765 #define MIPS_FCCR_COND4_S 4 766 #define MIPS_FCCR_COND4 (_ULCAST_(1) << MIPS_FCCR_COND4_S) 767 #define MIPS_FCCR_COND5_S 5 768 #define MIPS_FCCR_COND5 (_ULCAST_(1) << MIPS_FCCR_COND5_S) 769 #define MIPS_FCCR_COND6_S 6 770 #define MIPS_FCCR_COND6 (_ULCAST_(1) << MIPS_FCCR_COND6_S) 771 #define MIPS_FCCR_COND7_S 7 772 #define MIPS_FCCR_COND7 (_ULCAST_(1) << MIPS_FCCR_COND7_S) 773 774 /* 775 * Bits in the MIPS32/64 coprocessor 1 (FPU) enables register. 776 */ 777 #define MIPS_FENR_FS_S 2 778 #define MIPS_FENR_FS (_ULCAST_(1) << MIPS_FENR_FS_S) 779 780 /* 781 * FPU Status Register Values 782 */ 783 #define FPU_CSR_COND_S 23 /* $fcc0 */ 784 #define FPU_CSR_COND (_ULCAST_(1) << FPU_CSR_COND_S) 785 786 #define FPU_CSR_FS_S 24 /* flush denormalised results to 0 */ 787 #define FPU_CSR_FS (_ULCAST_(1) << FPU_CSR_FS_S) 788 789 #define FPU_CSR_CONDX_S 25 /* $fcc[7:1] */ 790 #define FPU_CSR_CONDX (_ULCAST_(127) << FPU_CSR_CONDX_S) 791 #define FPU_CSR_COND1_S 25 /* $fcc1 */ 792 #define FPU_CSR_COND1 (_ULCAST_(1) << FPU_CSR_COND1_S) 793 #define FPU_CSR_COND2_S 26 /* $fcc2 */ 794 #define FPU_CSR_COND2 (_ULCAST_(1) << FPU_CSR_COND2_S) 795 #define FPU_CSR_COND3_S 27 /* $fcc3 */ 796 #define FPU_CSR_COND3 (_ULCAST_(1) << FPU_CSR_COND3_S) 797 #define FPU_CSR_COND4_S 28 /* $fcc4 */ 798 #define FPU_CSR_COND4 (_ULCAST_(1) << FPU_CSR_COND4_S) 799 #define FPU_CSR_COND5_S 29 /* $fcc5 */ 800 #define FPU_CSR_COND5 (_ULCAST_(1) << FPU_CSR_COND5_S) 801 #define FPU_CSR_COND6_S 30 /* $fcc6 */ 802 #define FPU_CSR_COND6 (_ULCAST_(1) << FPU_CSR_COND6_S) 803 #define FPU_CSR_COND7_S 31 /* $fcc7 */ 804 #define FPU_CSR_COND7 (_ULCAST_(1) << FPU_CSR_COND7_S) 805 806 /* 807 * Bits 22:20 of the FPU Status Register will be read as 0, 808 * and should be written as zero. 809 */ 810 #define FPU_CSR_RSVD (_ULCAST_(7) << 20) 811 812 #define FPU_CSR_ABS2008 (_ULCAST_(1) << 19) 813 #define FPU_CSR_NAN2008 (_ULCAST_(1) << 18) 814 815 /* 816 * X the exception cause indicator 817 * E the exception enable 818 * S the sticky/flag bit 819 */ 820 #define FPU_CSR_ALL_X 0x0003f000 821 #define FPU_CSR_UNI_X 0x00020000 822 #define FPU_CSR_INV_X 0x00010000 823 #define FPU_CSR_DIV_X 0x00008000 824 #define FPU_CSR_OVF_X 0x00004000 825 #define FPU_CSR_UDF_X 0x00002000 826 #define FPU_CSR_INE_X 0x00001000 827 828 #define FPU_CSR_ALL_E 0x00000f80 829 #define FPU_CSR_INV_E 0x00000800 830 #define FPU_CSR_DIV_E 0x00000400 831 #define FPU_CSR_OVF_E 0x00000200 832 #define FPU_CSR_UDF_E 0x00000100 833 #define FPU_CSR_INE_E 0x00000080 834 835 #define FPU_CSR_ALL_S 0x0000007c 836 #define FPU_CSR_INV_S 0x00000040 837 #define FPU_CSR_DIV_S 0x00000020 838 #define FPU_CSR_OVF_S 0x00000010 839 #define FPU_CSR_UDF_S 0x00000008 840 #define FPU_CSR_INE_S 0x00000004 841 842 /* Bits 0 and 1 of FPU Status Register specify the rounding mode */ 843 #define FPU_CSR_RM 0x00000003 844 #define FPU_CSR_RN 0x0 /* nearest */ 845 #define FPU_CSR_RZ 0x1 /* towards zero */ 846 #define FPU_CSR_RU 0x2 /* towards +Infinity */ 847 #define FPU_CSR_RD 0x3 /* towards -Infinity */ 848 849 850 #ifndef __ASSEMBLY__ 851 852 /* 853 * Macros for handling the ISA mode bit for MIPS16 and microMIPS. 854 */ 855 #if defined(CONFIG_SYS_SUPPORTS_MIPS16) || \ 856 defined(CONFIG_SYS_SUPPORTS_MICROMIPS) 857 #define get_isa16_mode(x) ((x) & 0x1) 858 #define msk_isa16_mode(x) ((x) & ~0x1) 859 #define set_isa16_mode(x) do { (x) |= 0x1; } while(0) 860 #else 861 #define get_isa16_mode(x) 0 862 #define msk_isa16_mode(x) (x) 863 #define set_isa16_mode(x) do { } while(0) 864 #endif 865 866 /* 867 * microMIPS instructions can be 16-bit or 32-bit in length. This 868 * returns a 1 if the instruction is 16-bit and a 0 if 32-bit. 869 */ 870 static inline int mm_insn_16bit(u16 insn) 871 { 872 u16 opcode = (insn >> 10) & 0x7; 873 874 return (opcode >= 1 && opcode <= 3) ? 1 : 0; 875 } 876 877 /* 878 * TLB Invalidate Flush 879 */ 880 static inline void tlbinvf(void) 881 { 882 __asm__ __volatile__( 883 ".set push\n\t" 884 ".set noreorder\n\t" 885 ".word 0x42000004\n\t" /* tlbinvf */ 886 ".set pop"); 887 } 888 889 890 /* 891 * Functions to access the R10000 performance counters. These are basically 892 * mfc0 and mtc0 instructions from and to coprocessor register with a 5-bit 893 * performance counter number encoded into bits 1 ... 5 of the instruction. 894 * Only performance counters 0 to 1 actually exist, so for a non-R10000 aware 895 * disassembler these will look like an access to sel 0 or 1. 896 */ 897 #define read_r10k_perf_cntr(counter) \ 898 ({ \ 899 unsigned int __res; \ 900 __asm__ __volatile__( \ 901 "mfpc\t%0, %1" \ 902 : "=r" (__res) \ 903 : "i" (counter)); \ 904 \ 905 __res; \ 906 }) 907 908 #define write_r10k_perf_cntr(counter,val) \ 909 do { \ 910 __asm__ __volatile__( \ 911 "mtpc\t%0, %1" \ 912 : \ 913 : "r" (val), "i" (counter)); \ 914 } while (0) 915 916 #define read_r10k_perf_event(counter) \ 917 ({ \ 918 unsigned int __res; \ 919 __asm__ __volatile__( \ 920 "mfps\t%0, %1" \ 921 : "=r" (__res) \ 922 : "i" (counter)); \ 923 \ 924 __res; \ 925 }) 926 927 #define write_r10k_perf_cntl(counter,val) \ 928 do { \ 929 __asm__ __volatile__( \ 930 "mtps\t%0, %1" \ 931 : \ 932 : "r" (val), "i" (counter)); \ 933 } while (0) 934 935 936 /* 937 * Macros to access the system control coprocessor 938 */ 939 940 #define __read_32bit_c0_register(source, sel) \ 941 ({ unsigned int __res; \ 942 if (sel == 0) \ 943 __asm__ __volatile__( \ 944 "mfc0\t%0, " #source "\n\t" \ 945 : "=r" (__res)); \ 946 else \ 947 __asm__ __volatile__( \ 948 ".set\tmips32\n\t" \ 949 "mfc0\t%0, " #source ", " #sel "\n\t" \ 950 ".set\tmips0\n\t" \ 951 : "=r" (__res)); \ 952 __res; \ 953 }) 954 955 #define __read_64bit_c0_register(source, sel) \ 956 ({ unsigned long long __res; \ 957 if (sizeof(unsigned long) == 4) \ 958 __res = __read_64bit_c0_split(source, sel); \ 959 else if (sel == 0) \ 960 __asm__ __volatile__( \ 961 ".set\tmips3\n\t" \ 962 "dmfc0\t%0, " #source "\n\t" \ 963 ".set\tmips0" \ 964 : "=r" (__res)); \ 965 else \ 966 __asm__ __volatile__( \ 967 ".set\tmips64\n\t" \ 968 "dmfc0\t%0, " #source ", " #sel "\n\t" \ 969 ".set\tmips0" \ 970 : "=r" (__res)); \ 971 __res; \ 972 }) 973 974 #define __write_32bit_c0_register(register, sel, value) \ 975 do { \ 976 if (sel == 0) \ 977 __asm__ __volatile__( \ 978 "mtc0\t%z0, " #register "\n\t" \ 979 : : "Jr" ((unsigned int)(value))); \ 980 else \ 981 __asm__ __volatile__( \ 982 ".set\tmips32\n\t" \ 983 "mtc0\t%z0, " #register ", " #sel "\n\t" \ 984 ".set\tmips0" \ 985 : : "Jr" ((unsigned int)(value))); \ 986 } while (0) 987 988 #define __write_64bit_c0_register(register, sel, value) \ 989 do { \ 990 if (sizeof(unsigned long) == 4) \ 991 __write_64bit_c0_split(register, sel, value); \ 992 else if (sel == 0) \ 993 __asm__ __volatile__( \ 994 ".set\tmips3\n\t" \ 995 "dmtc0\t%z0, " #register "\n\t" \ 996 ".set\tmips0" \ 997 : : "Jr" (value)); \ 998 else \ 999 __asm__ __volatile__( \ 1000 ".set\tmips64\n\t" \ 1001 "dmtc0\t%z0, " #register ", " #sel "\n\t" \ 1002 ".set\tmips0" \ 1003 : : "Jr" (value)); \ 1004 } while (0) 1005 1006 #define __read_ulong_c0_register(reg, sel) \ 1007 ((sizeof(unsigned long) == 4) ? \ 1008 (unsigned long) __read_32bit_c0_register(reg, sel) : \ 1009 (unsigned long) __read_64bit_c0_register(reg, sel)) 1010 1011 #define __write_ulong_c0_register(reg, sel, val) \ 1012 do { \ 1013 if (sizeof(unsigned long) == 4) \ 1014 __write_32bit_c0_register(reg, sel, val); \ 1015 else \ 1016 __write_64bit_c0_register(reg, sel, val); \ 1017 } while (0) 1018 1019 /* 1020 * On RM7000/RM9000 these are uses to access cop0 set 1 registers 1021 */ 1022 #define __read_32bit_c0_ctrl_register(source) \ 1023 ({ unsigned int __res; \ 1024 __asm__ __volatile__( \ 1025 "cfc0\t%0, " #source "\n\t" \ 1026 : "=r" (__res)); \ 1027 __res; \ 1028 }) 1029 1030 #define __write_32bit_c0_ctrl_register(register, value) \ 1031 do { \ 1032 __asm__ __volatile__( \ 1033 "ctc0\t%z0, " #register "\n\t" \ 1034 : : "Jr" ((unsigned int)(value))); \ 1035 } while (0) 1036 1037 /* 1038 * These versions are only needed for systems with more than 38 bits of 1039 * physical address space running the 32-bit kernel. That's none atm :-) 1040 */ 1041 #define __read_64bit_c0_split(source, sel) \ 1042 ({ \ 1043 unsigned long long __val; \ 1044 unsigned long __flags; \ 1045 \ 1046 local_irq_save(__flags); \ 1047 if (sel == 0) \ 1048 __asm__ __volatile__( \ 1049 ".set\tmips64\n\t" \ 1050 "dmfc0\t%M0, " #source "\n\t" \ 1051 "dsll\t%L0, %M0, 32\n\t" \ 1052 "dsra\t%M0, %M0, 32\n\t" \ 1053 "dsra\t%L0, %L0, 32\n\t" \ 1054 ".set\tmips0" \ 1055 : "=r" (__val)); \ 1056 else \ 1057 __asm__ __volatile__( \ 1058 ".set\tmips64\n\t" \ 1059 "dmfc0\t%M0, " #source ", " #sel "\n\t" \ 1060 "dsll\t%L0, %M0, 32\n\t" \ 1061 "dsra\t%M0, %M0, 32\n\t" \ 1062 "dsra\t%L0, %L0, 32\n\t" \ 1063 ".set\tmips0" \ 1064 : "=r" (__val)); \ 1065 local_irq_restore(__flags); \ 1066 \ 1067 __val; \ 1068 }) 1069 1070 #define __write_64bit_c0_split(source, sel, val) \ 1071 do { \ 1072 unsigned long __flags; \ 1073 \ 1074 local_irq_save(__flags); \ 1075 if (sel == 0) \ 1076 __asm__ __volatile__( \ 1077 ".set\tmips64\n\t" \ 1078 "dsll\t%L0, %L0, 32\n\t" \ 1079 "dsrl\t%L0, %L0, 32\n\t" \ 1080 "dsll\t%M0, %M0, 32\n\t" \ 1081 "or\t%L0, %L0, %M0\n\t" \ 1082 "dmtc0\t%L0, " #source "\n\t" \ 1083 ".set\tmips0" \ 1084 : : "r" (val)); \ 1085 else \ 1086 __asm__ __volatile__( \ 1087 ".set\tmips64\n\t" \ 1088 "dsll\t%L0, %L0, 32\n\t" \ 1089 "dsrl\t%L0, %L0, 32\n\t" \ 1090 "dsll\t%M0, %M0, 32\n\t" \ 1091 "or\t%L0, %L0, %M0\n\t" \ 1092 "dmtc0\t%L0, " #source ", " #sel "\n\t" \ 1093 ".set\tmips0" \ 1094 : : "r" (val)); \ 1095 local_irq_restore(__flags); \ 1096 } while (0) 1097 1098 #define __readx_32bit_c0_register(source) \ 1099 ({ \ 1100 unsigned int __res; \ 1101 \ 1102 __asm__ __volatile__( \ 1103 " .set push \n" \ 1104 " .set noat \n" \ 1105 " .set mips32r2 \n" \ 1106 " .insn \n" \ 1107 " # mfhc0 $1, %1 \n" \ 1108 " .word (0x40410000 | ((%1 & 0x1f) << 11)) \n" \ 1109 " move %0, $1 \n" \ 1110 " .set pop \n" \ 1111 : "=r" (__res) \ 1112 : "i" (source)); \ 1113 __res; \ 1114 }) 1115 1116 #define __writex_32bit_c0_register(register, value) \ 1117 do { \ 1118 __asm__ __volatile__( \ 1119 " .set push \n" \ 1120 " .set noat \n" \ 1121 " .set mips32r2 \n" \ 1122 " move $1, %0 \n" \ 1123 " # mthc0 $1, %1 \n" \ 1124 " .insn \n" \ 1125 " .word (0x40c10000 | ((%1 & 0x1f) << 11)) \n" \ 1126 " .set pop \n" \ 1127 : \ 1128 : "r" (value), "i" (register)); \ 1129 } while (0) 1130 1131 #define read_c0_index() __read_32bit_c0_register($0, 0) 1132 #define write_c0_index(val) __write_32bit_c0_register($0, 0, val) 1133 1134 #define read_c0_random() __read_32bit_c0_register($1, 0) 1135 #define write_c0_random(val) __write_32bit_c0_register($1, 0, val) 1136 1137 #define read_c0_entrylo0() __read_ulong_c0_register($2, 0) 1138 #define write_c0_entrylo0(val) __write_ulong_c0_register($2, 0, val) 1139 1140 #define readx_c0_entrylo0() __readx_32bit_c0_register(2) 1141 #define writex_c0_entrylo0(val) __writex_32bit_c0_register(2, val) 1142 1143 #define read_c0_entrylo1() __read_ulong_c0_register($3, 0) 1144 #define write_c0_entrylo1(val) __write_ulong_c0_register($3, 0, val) 1145 1146 #define readx_c0_entrylo1() __readx_32bit_c0_register(3) 1147 #define writex_c0_entrylo1(val) __writex_32bit_c0_register(3, val) 1148 1149 #define read_c0_conf() __read_32bit_c0_register($3, 0) 1150 #define write_c0_conf(val) __write_32bit_c0_register($3, 0, val) 1151 1152 #define read_c0_context() __read_ulong_c0_register($4, 0) 1153 #define write_c0_context(val) __write_ulong_c0_register($4, 0, val) 1154 1155 #define read_c0_userlocal() __read_ulong_c0_register($4, 2) 1156 #define write_c0_userlocal(val) __write_ulong_c0_register($4, 2, val) 1157 1158 #define read_c0_pagemask() __read_32bit_c0_register($5, 0) 1159 #define write_c0_pagemask(val) __write_32bit_c0_register($5, 0, val) 1160 1161 #define read_c0_pagegrain() __read_32bit_c0_register($5, 1) 1162 #define write_c0_pagegrain(val) __write_32bit_c0_register($5, 1, val) 1163 1164 #define read_c0_wired() __read_32bit_c0_register($6, 0) 1165 #define write_c0_wired(val) __write_32bit_c0_register($6, 0, val) 1166 1167 #define read_c0_info() __read_32bit_c0_register($7, 0) 1168 1169 #define read_c0_cache() __read_32bit_c0_register($7, 0) /* TX39xx */ 1170 #define write_c0_cache(val) __write_32bit_c0_register($7, 0, val) 1171 1172 #define read_c0_badvaddr() __read_ulong_c0_register($8, 0) 1173 #define write_c0_badvaddr(val) __write_ulong_c0_register($8, 0, val) 1174 1175 #define read_c0_count() __read_32bit_c0_register($9, 0) 1176 #define write_c0_count(val) __write_32bit_c0_register($9, 0, val) 1177 1178 #define read_c0_count2() __read_32bit_c0_register($9, 6) /* pnx8550 */ 1179 #define write_c0_count2(val) __write_32bit_c0_register($9, 6, val) 1180 1181 #define read_c0_count3() __read_32bit_c0_register($9, 7) /* pnx8550 */ 1182 #define write_c0_count3(val) __write_32bit_c0_register($9, 7, val) 1183 1184 #define read_c0_entryhi() __read_ulong_c0_register($10, 0) 1185 #define write_c0_entryhi(val) __write_ulong_c0_register($10, 0, val) 1186 1187 #define read_c0_compare() __read_32bit_c0_register($11, 0) 1188 #define write_c0_compare(val) __write_32bit_c0_register($11, 0, val) 1189 1190 #define read_c0_compare2() __read_32bit_c0_register($11, 6) /* pnx8550 */ 1191 #define write_c0_compare2(val) __write_32bit_c0_register($11, 6, val) 1192 1193 #define read_c0_compare3() __read_32bit_c0_register($11, 7) /* pnx8550 */ 1194 #define write_c0_compare3(val) __write_32bit_c0_register($11, 7, val) 1195 1196 #define read_c0_status() __read_32bit_c0_register($12, 0) 1197 1198 #define write_c0_status(val) __write_32bit_c0_register($12, 0, val) 1199 1200 #define read_c0_cause() __read_32bit_c0_register($13, 0) 1201 #define write_c0_cause(val) __write_32bit_c0_register($13, 0, val) 1202 1203 #define read_c0_epc() __read_ulong_c0_register($14, 0) 1204 #define write_c0_epc(val) __write_ulong_c0_register($14, 0, val) 1205 1206 #define read_c0_prid() __read_32bit_c0_register($15, 0) 1207 1208 #define read_c0_cmgcrbase() __read_ulong_c0_register($15, 3) 1209 1210 #define read_c0_config() __read_32bit_c0_register($16, 0) 1211 #define read_c0_config1() __read_32bit_c0_register($16, 1) 1212 #define read_c0_config2() __read_32bit_c0_register($16, 2) 1213 #define read_c0_config3() __read_32bit_c0_register($16, 3) 1214 #define read_c0_config4() __read_32bit_c0_register($16, 4) 1215 #define read_c0_config5() __read_32bit_c0_register($16, 5) 1216 #define read_c0_config6() __read_32bit_c0_register($16, 6) 1217 #define read_c0_config7() __read_32bit_c0_register($16, 7) 1218 #define write_c0_config(val) __write_32bit_c0_register($16, 0, val) 1219 #define write_c0_config1(val) __write_32bit_c0_register($16, 1, val) 1220 #define write_c0_config2(val) __write_32bit_c0_register($16, 2, val) 1221 #define write_c0_config3(val) __write_32bit_c0_register($16, 3, val) 1222 #define write_c0_config4(val) __write_32bit_c0_register($16, 4, val) 1223 #define write_c0_config5(val) __write_32bit_c0_register($16, 5, val) 1224 #define write_c0_config6(val) __write_32bit_c0_register($16, 6, val) 1225 #define write_c0_config7(val) __write_32bit_c0_register($16, 7, val) 1226 1227 #define read_c0_lladdr() __read_ulong_c0_register($17, 0) 1228 #define write_c0_lladdr(val) __write_ulong_c0_register($17, 0, val) 1229 #define read_c0_maar() __read_ulong_c0_register($17, 1) 1230 #define write_c0_maar(val) __write_ulong_c0_register($17, 1, val) 1231 #define read_c0_maari() __read_32bit_c0_register($17, 2) 1232 #define write_c0_maari(val) __write_32bit_c0_register($17, 2, val) 1233 1234 /* 1235 * The WatchLo register. There may be up to 8 of them. 1236 */ 1237 #define read_c0_watchlo0() __read_ulong_c0_register($18, 0) 1238 #define read_c0_watchlo1() __read_ulong_c0_register($18, 1) 1239 #define read_c0_watchlo2() __read_ulong_c0_register($18, 2) 1240 #define read_c0_watchlo3() __read_ulong_c0_register($18, 3) 1241 #define read_c0_watchlo4() __read_ulong_c0_register($18, 4) 1242 #define read_c0_watchlo5() __read_ulong_c0_register($18, 5) 1243 #define read_c0_watchlo6() __read_ulong_c0_register($18, 6) 1244 #define read_c0_watchlo7() __read_ulong_c0_register($18, 7) 1245 #define write_c0_watchlo0(val) __write_ulong_c0_register($18, 0, val) 1246 #define write_c0_watchlo1(val) __write_ulong_c0_register($18, 1, val) 1247 #define write_c0_watchlo2(val) __write_ulong_c0_register($18, 2, val) 1248 #define write_c0_watchlo3(val) __write_ulong_c0_register($18, 3, val) 1249 #define write_c0_watchlo4(val) __write_ulong_c0_register($18, 4, val) 1250 #define write_c0_watchlo5(val) __write_ulong_c0_register($18, 5, val) 1251 #define write_c0_watchlo6(val) __write_ulong_c0_register($18, 6, val) 1252 #define write_c0_watchlo7(val) __write_ulong_c0_register($18, 7, val) 1253 1254 /* 1255 * The WatchHi register. There may be up to 8 of them. 1256 */ 1257 #define read_c0_watchhi0() __read_32bit_c0_register($19, 0) 1258 #define read_c0_watchhi1() __read_32bit_c0_register($19, 1) 1259 #define read_c0_watchhi2() __read_32bit_c0_register($19, 2) 1260 #define read_c0_watchhi3() __read_32bit_c0_register($19, 3) 1261 #define read_c0_watchhi4() __read_32bit_c0_register($19, 4) 1262 #define read_c0_watchhi5() __read_32bit_c0_register($19, 5) 1263 #define read_c0_watchhi6() __read_32bit_c0_register($19, 6) 1264 #define read_c0_watchhi7() __read_32bit_c0_register($19, 7) 1265 1266 #define write_c0_watchhi0(val) __write_32bit_c0_register($19, 0, val) 1267 #define write_c0_watchhi1(val) __write_32bit_c0_register($19, 1, val) 1268 #define write_c0_watchhi2(val) __write_32bit_c0_register($19, 2, val) 1269 #define write_c0_watchhi3(val) __write_32bit_c0_register($19, 3, val) 1270 #define write_c0_watchhi4(val) __write_32bit_c0_register($19, 4, val) 1271 #define write_c0_watchhi5(val) __write_32bit_c0_register($19, 5, val) 1272 #define write_c0_watchhi6(val) __write_32bit_c0_register($19, 6, val) 1273 #define write_c0_watchhi7(val) __write_32bit_c0_register($19, 7, val) 1274 1275 #define read_c0_xcontext() __read_ulong_c0_register($20, 0) 1276 #define write_c0_xcontext(val) __write_ulong_c0_register($20, 0, val) 1277 1278 #define read_c0_intcontrol() __read_32bit_c0_ctrl_register($20) 1279 #define write_c0_intcontrol(val) __write_32bit_c0_ctrl_register($20, val) 1280 1281 #define read_c0_framemask() __read_32bit_c0_register($21, 0) 1282 #define write_c0_framemask(val) __write_32bit_c0_register($21, 0, val) 1283 1284 #define read_c0_diag() __read_32bit_c0_register($22, 0) 1285 #define write_c0_diag(val) __write_32bit_c0_register($22, 0, val) 1286 1287 /* R10K CP0 Branch Diagnostic register is 64bits wide */ 1288 #define read_c0_r10k_diag() __read_64bit_c0_register($22, 0) 1289 #define write_c0_r10k_diag(val) __write_64bit_c0_register($22, 0, val) 1290 1291 #define read_c0_diag1() __read_32bit_c0_register($22, 1) 1292 #define write_c0_diag1(val) __write_32bit_c0_register($22, 1, val) 1293 1294 #define read_c0_diag2() __read_32bit_c0_register($22, 2) 1295 #define write_c0_diag2(val) __write_32bit_c0_register($22, 2, val) 1296 1297 #define read_c0_diag3() __read_32bit_c0_register($22, 3) 1298 #define write_c0_diag3(val) __write_32bit_c0_register($22, 3, val) 1299 1300 #define read_c0_diag4() __read_32bit_c0_register($22, 4) 1301 #define write_c0_diag4(val) __write_32bit_c0_register($22, 4, val) 1302 1303 #define read_c0_diag5() __read_32bit_c0_register($22, 5) 1304 #define write_c0_diag5(val) __write_32bit_c0_register($22, 5, val) 1305 1306 #define read_c0_debug() __read_32bit_c0_register($23, 0) 1307 #define write_c0_debug(val) __write_32bit_c0_register($23, 0, val) 1308 1309 #define read_c0_depc() __read_ulong_c0_register($24, 0) 1310 #define write_c0_depc(val) __write_ulong_c0_register($24, 0, val) 1311 1312 /* 1313 * MIPS32 / MIPS64 performance counters 1314 */ 1315 #define read_c0_perfctrl0() __read_32bit_c0_register($25, 0) 1316 #define write_c0_perfctrl0(val) __write_32bit_c0_register($25, 0, val) 1317 #define read_c0_perfcntr0() __read_32bit_c0_register($25, 1) 1318 #define write_c0_perfcntr0(val) __write_32bit_c0_register($25, 1, val) 1319 #define read_c0_perfcntr0_64() __read_64bit_c0_register($25, 1) 1320 #define write_c0_perfcntr0_64(val) __write_64bit_c0_register($25, 1, val) 1321 #define read_c0_perfctrl1() __read_32bit_c0_register($25, 2) 1322 #define write_c0_perfctrl1(val) __write_32bit_c0_register($25, 2, val) 1323 #define read_c0_perfcntr1() __read_32bit_c0_register($25, 3) 1324 #define write_c0_perfcntr1(val) __write_32bit_c0_register($25, 3, val) 1325 #define read_c0_perfcntr1_64() __read_64bit_c0_register($25, 3) 1326 #define write_c0_perfcntr1_64(val) __write_64bit_c0_register($25, 3, val) 1327 #define read_c0_perfctrl2() __read_32bit_c0_register($25, 4) 1328 #define write_c0_perfctrl2(val) __write_32bit_c0_register($25, 4, val) 1329 #define read_c0_perfcntr2() __read_32bit_c0_register($25, 5) 1330 #define write_c0_perfcntr2(val) __write_32bit_c0_register($25, 5, val) 1331 #define read_c0_perfcntr2_64() __read_64bit_c0_register($25, 5) 1332 #define write_c0_perfcntr2_64(val) __write_64bit_c0_register($25, 5, val) 1333 #define read_c0_perfctrl3() __read_32bit_c0_register($25, 6) 1334 #define write_c0_perfctrl3(val) __write_32bit_c0_register($25, 6, val) 1335 #define read_c0_perfcntr3() __read_32bit_c0_register($25, 7) 1336 #define write_c0_perfcntr3(val) __write_32bit_c0_register($25, 7, val) 1337 #define read_c0_perfcntr3_64() __read_64bit_c0_register($25, 7) 1338 #define write_c0_perfcntr3_64(val) __write_64bit_c0_register($25, 7, val) 1339 1340 #define read_c0_ecc() __read_32bit_c0_register($26, 0) 1341 #define write_c0_ecc(val) __write_32bit_c0_register($26, 0, val) 1342 1343 #define read_c0_derraddr0() __read_ulong_c0_register($26, 1) 1344 #define write_c0_derraddr0(val) __write_ulong_c0_register($26, 1, val) 1345 1346 #define read_c0_cacheerr() __read_32bit_c0_register($27, 0) 1347 1348 #define read_c0_derraddr1() __read_ulong_c0_register($27, 1) 1349 #define write_c0_derraddr1(val) __write_ulong_c0_register($27, 1, val) 1350 1351 #define read_c0_taglo() __read_32bit_c0_register($28, 0) 1352 #define write_c0_taglo(val) __write_32bit_c0_register($28, 0, val) 1353 1354 #define read_c0_dtaglo() __read_32bit_c0_register($28, 2) 1355 #define write_c0_dtaglo(val) __write_32bit_c0_register($28, 2, val) 1356 1357 #define read_c0_ddatalo() __read_32bit_c0_register($28, 3) 1358 #define write_c0_ddatalo(val) __write_32bit_c0_register($28, 3, val) 1359 1360 #define read_c0_staglo() __read_32bit_c0_register($28, 4) 1361 #define write_c0_staglo(val) __write_32bit_c0_register($28, 4, val) 1362 1363 #define read_c0_taghi() __read_32bit_c0_register($29, 0) 1364 #define write_c0_taghi(val) __write_32bit_c0_register($29, 0, val) 1365 1366 #define read_c0_errorepc() __read_ulong_c0_register($30, 0) 1367 #define write_c0_errorepc(val) __write_ulong_c0_register($30, 0, val) 1368 1369 /* MIPSR2 */ 1370 #define read_c0_hwrena() __read_32bit_c0_register($7, 0) 1371 #define write_c0_hwrena(val) __write_32bit_c0_register($7, 0, val) 1372 1373 #define read_c0_intctl() __read_32bit_c0_register($12, 1) 1374 #define write_c0_intctl(val) __write_32bit_c0_register($12, 1, val) 1375 1376 #define read_c0_srsctl() __read_32bit_c0_register($12, 2) 1377 #define write_c0_srsctl(val) __write_32bit_c0_register($12, 2, val) 1378 1379 #define read_c0_srsmap() __read_32bit_c0_register($12, 3) 1380 #define write_c0_srsmap(val) __write_32bit_c0_register($12, 3, val) 1381 1382 #define read_c0_ebase() __read_32bit_c0_register($15, 1) 1383 #define write_c0_ebase(val) __write_32bit_c0_register($15, 1, val) 1384 1385 #define read_c0_cdmmbase() __read_ulong_c0_register($15, 2) 1386 #define write_c0_cdmmbase(val) __write_ulong_c0_register($15, 2, val) 1387 1388 /* MIPSR3 */ 1389 #define read_c0_segctl0() __read_32bit_c0_register($5, 2) 1390 #define write_c0_segctl0(val) __write_32bit_c0_register($5, 2, val) 1391 1392 #define read_c0_segctl1() __read_32bit_c0_register($5, 3) 1393 #define write_c0_segctl1(val) __write_32bit_c0_register($5, 3, val) 1394 1395 #define read_c0_segctl2() __read_32bit_c0_register($5, 4) 1396 #define write_c0_segctl2(val) __write_32bit_c0_register($5, 4, val) 1397 1398 /* Hardware Page Table Walker */ 1399 #define read_c0_pwbase() __read_ulong_c0_register($5, 5) 1400 #define write_c0_pwbase(val) __write_ulong_c0_register($5, 5, val) 1401 1402 #define read_c0_pwfield() __read_ulong_c0_register($5, 6) 1403 #define write_c0_pwfield(val) __write_ulong_c0_register($5, 6, val) 1404 1405 #define read_c0_pwsize() __read_ulong_c0_register($5, 7) 1406 #define write_c0_pwsize(val) __write_ulong_c0_register($5, 7, val) 1407 1408 #define read_c0_pwctl() __read_32bit_c0_register($6, 6) 1409 #define write_c0_pwctl(val) __write_32bit_c0_register($6, 6, val) 1410 1411 /* Cavium OCTEON (cnMIPS) */ 1412 #define read_c0_cvmcount() __read_ulong_c0_register($9, 6) 1413 #define write_c0_cvmcount(val) __write_ulong_c0_register($9, 6, val) 1414 1415 #define read_c0_cvmctl() __read_64bit_c0_register($9, 7) 1416 #define write_c0_cvmctl(val) __write_64bit_c0_register($9, 7, val) 1417 1418 #define read_c0_cvmmemctl() __read_64bit_c0_register($11, 7) 1419 #define write_c0_cvmmemctl(val) __write_64bit_c0_register($11, 7, val) 1420 /* 1421 * The cacheerr registers are not standardized. On OCTEON, they are 1422 * 64 bits wide. 1423 */ 1424 #define read_octeon_c0_icacheerr() __read_64bit_c0_register($27, 0) 1425 #define write_octeon_c0_icacheerr(val) __write_64bit_c0_register($27, 0, val) 1426 1427 #define read_octeon_c0_dcacheerr() __read_64bit_c0_register($27, 1) 1428 #define write_octeon_c0_dcacheerr(val) __write_64bit_c0_register($27, 1, val) 1429 1430 /* BMIPS3300 */ 1431 #define read_c0_brcm_config_0() __read_32bit_c0_register($22, 0) 1432 #define write_c0_brcm_config_0(val) __write_32bit_c0_register($22, 0, val) 1433 1434 #define read_c0_brcm_bus_pll() __read_32bit_c0_register($22, 4) 1435 #define write_c0_brcm_bus_pll(val) __write_32bit_c0_register($22, 4, val) 1436 1437 #define read_c0_brcm_reset() __read_32bit_c0_register($22, 5) 1438 #define write_c0_brcm_reset(val) __write_32bit_c0_register($22, 5, val) 1439 1440 /* BMIPS43xx */ 1441 #define read_c0_brcm_cmt_intr() __read_32bit_c0_register($22, 1) 1442 #define write_c0_brcm_cmt_intr(val) __write_32bit_c0_register($22, 1, val) 1443 1444 #define read_c0_brcm_cmt_ctrl() __read_32bit_c0_register($22, 2) 1445 #define write_c0_brcm_cmt_ctrl(val) __write_32bit_c0_register($22, 2, val) 1446 1447 #define read_c0_brcm_cmt_local() __read_32bit_c0_register($22, 3) 1448 #define write_c0_brcm_cmt_local(val) __write_32bit_c0_register($22, 3, val) 1449 1450 #define read_c0_brcm_config_1() __read_32bit_c0_register($22, 5) 1451 #define write_c0_brcm_config_1(val) __write_32bit_c0_register($22, 5, val) 1452 1453 #define read_c0_brcm_cbr() __read_32bit_c0_register($22, 6) 1454 #define write_c0_brcm_cbr(val) __write_32bit_c0_register($22, 6, val) 1455 1456 /* BMIPS5000 */ 1457 #define read_c0_brcm_config() __read_32bit_c0_register($22, 0) 1458 #define write_c0_brcm_config(val) __write_32bit_c0_register($22, 0, val) 1459 1460 #define read_c0_brcm_mode() __read_32bit_c0_register($22, 1) 1461 #define write_c0_brcm_mode(val) __write_32bit_c0_register($22, 1, val) 1462 1463 #define read_c0_brcm_action() __read_32bit_c0_register($22, 2) 1464 #define write_c0_brcm_action(val) __write_32bit_c0_register($22, 2, val) 1465 1466 #define read_c0_brcm_edsp() __read_32bit_c0_register($22, 3) 1467 #define write_c0_brcm_edsp(val) __write_32bit_c0_register($22, 3, val) 1468 1469 #define read_c0_brcm_bootvec() __read_32bit_c0_register($22, 4) 1470 #define write_c0_brcm_bootvec(val) __write_32bit_c0_register($22, 4, val) 1471 1472 #define read_c0_brcm_sleepcount() __read_32bit_c0_register($22, 7) 1473 #define write_c0_brcm_sleepcount(val) __write_32bit_c0_register($22, 7, val) 1474 1475 /* 1476 * Macros to access the floating point coprocessor control registers 1477 */ 1478 #define _read_32bit_cp1_register(source, gas_hardfloat) \ 1479 ({ \ 1480 unsigned int __res; \ 1481 \ 1482 __asm__ __volatile__( \ 1483 " .set push \n" \ 1484 " .set reorder \n" \ 1485 " # gas fails to assemble cfc1 for some archs, \n" \ 1486 " # like Octeon. \n" \ 1487 " .set mips1 \n" \ 1488 " "STR(gas_hardfloat)" \n" \ 1489 " cfc1 %0,"STR(source)" \n" \ 1490 " .set pop \n" \ 1491 : "=r" (__res)); \ 1492 __res; \ 1493 }) 1494 1495 #define _write_32bit_cp1_register(dest, val, gas_hardfloat) \ 1496 do { \ 1497 __asm__ __volatile__( \ 1498 " .set push \n" \ 1499 " .set reorder \n" \ 1500 " "STR(gas_hardfloat)" \n" \ 1501 " ctc1 %0,"STR(dest)" \n" \ 1502 " .set pop \n" \ 1503 : : "r" (val)); \ 1504 } while (0) 1505 1506 #ifdef GAS_HAS_SET_HARDFLOAT 1507 #define read_32bit_cp1_register(source) \ 1508 _read_32bit_cp1_register(source, .set hardfloat) 1509 #define write_32bit_cp1_register(dest, val) \ 1510 _write_32bit_cp1_register(dest, val, .set hardfloat) 1511 #else 1512 #define read_32bit_cp1_register(source) \ 1513 _read_32bit_cp1_register(source, ) 1514 #define write_32bit_cp1_register(dest, val) \ 1515 _write_32bit_cp1_register(dest, val, ) 1516 #endif 1517 1518 #ifdef HAVE_AS_DSP 1519 #define rddsp(mask) \ 1520 ({ \ 1521 unsigned int __dspctl; \ 1522 \ 1523 __asm__ __volatile__( \ 1524 " .set push \n" \ 1525 " .set dsp \n" \ 1526 " rddsp %0, %x1 \n" \ 1527 " .set pop \n" \ 1528 : "=r" (__dspctl) \ 1529 : "i" (mask)); \ 1530 __dspctl; \ 1531 }) 1532 1533 #define wrdsp(val, mask) \ 1534 do { \ 1535 __asm__ __volatile__( \ 1536 " .set push \n" \ 1537 " .set dsp \n" \ 1538 " wrdsp %0, %x1 \n" \ 1539 " .set pop \n" \ 1540 : \ 1541 : "r" (val), "i" (mask)); \ 1542 } while (0) 1543 1544 #define mflo0() \ 1545 ({ \ 1546 long mflo0; \ 1547 __asm__( \ 1548 " .set push \n" \ 1549 " .set dsp \n" \ 1550 " mflo %0, $ac0 \n" \ 1551 " .set pop \n" \ 1552 : "=r" (mflo0)); \ 1553 mflo0; \ 1554 }) 1555 1556 #define mflo1() \ 1557 ({ \ 1558 long mflo1; \ 1559 __asm__( \ 1560 " .set push \n" \ 1561 " .set dsp \n" \ 1562 " mflo %0, $ac1 \n" \ 1563 " .set pop \n" \ 1564 : "=r" (mflo1)); \ 1565 mflo1; \ 1566 }) 1567 1568 #define mflo2() \ 1569 ({ \ 1570 long mflo2; \ 1571 __asm__( \ 1572 " .set push \n" \ 1573 " .set dsp \n" \ 1574 " mflo %0, $ac2 \n" \ 1575 " .set pop \n" \ 1576 : "=r" (mflo2)); \ 1577 mflo2; \ 1578 }) 1579 1580 #define mflo3() \ 1581 ({ \ 1582 long mflo3; \ 1583 __asm__( \ 1584 " .set push \n" \ 1585 " .set dsp \n" \ 1586 " mflo %0, $ac3 \n" \ 1587 " .set pop \n" \ 1588 : "=r" (mflo3)); \ 1589 mflo3; \ 1590 }) 1591 1592 #define mfhi0() \ 1593 ({ \ 1594 long mfhi0; \ 1595 __asm__( \ 1596 " .set push \n" \ 1597 " .set dsp \n" \ 1598 " mfhi %0, $ac0 \n" \ 1599 " .set pop \n" \ 1600 : "=r" (mfhi0)); \ 1601 mfhi0; \ 1602 }) 1603 1604 #define mfhi1() \ 1605 ({ \ 1606 long mfhi1; \ 1607 __asm__( \ 1608 " .set push \n" \ 1609 " .set dsp \n" \ 1610 " mfhi %0, $ac1 \n" \ 1611 " .set pop \n" \ 1612 : "=r" (mfhi1)); \ 1613 mfhi1; \ 1614 }) 1615 1616 #define mfhi2() \ 1617 ({ \ 1618 long mfhi2; \ 1619 __asm__( \ 1620 " .set push \n" \ 1621 " .set dsp \n" \ 1622 " mfhi %0, $ac2 \n" \ 1623 " .set pop \n" \ 1624 : "=r" (mfhi2)); \ 1625 mfhi2; \ 1626 }) 1627 1628 #define mfhi3() \ 1629 ({ \ 1630 long mfhi3; \ 1631 __asm__( \ 1632 " .set push \n" \ 1633 " .set dsp \n" \ 1634 " mfhi %0, $ac3 \n" \ 1635 " .set pop \n" \ 1636 : "=r" (mfhi3)); \ 1637 mfhi3; \ 1638 }) 1639 1640 1641 #define mtlo0(x) \ 1642 ({ \ 1643 __asm__( \ 1644 " .set push \n" \ 1645 " .set dsp \n" \ 1646 " mtlo %0, $ac0 \n" \ 1647 " .set pop \n" \ 1648 : \ 1649 : "r" (x)); \ 1650 }) 1651 1652 #define mtlo1(x) \ 1653 ({ \ 1654 __asm__( \ 1655 " .set push \n" \ 1656 " .set dsp \n" \ 1657 " mtlo %0, $ac1 \n" \ 1658 " .set pop \n" \ 1659 : \ 1660 : "r" (x)); \ 1661 }) 1662 1663 #define mtlo2(x) \ 1664 ({ \ 1665 __asm__( \ 1666 " .set push \n" \ 1667 " .set dsp \n" \ 1668 " mtlo %0, $ac2 \n" \ 1669 " .set pop \n" \ 1670 : \ 1671 : "r" (x)); \ 1672 }) 1673 1674 #define mtlo3(x) \ 1675 ({ \ 1676 __asm__( \ 1677 " .set push \n" \ 1678 " .set dsp \n" \ 1679 " mtlo %0, $ac3 \n" \ 1680 " .set pop \n" \ 1681 : \ 1682 : "r" (x)); \ 1683 }) 1684 1685 #define mthi0(x) \ 1686 ({ \ 1687 __asm__( \ 1688 " .set push \n" \ 1689 " .set dsp \n" \ 1690 " mthi %0, $ac0 \n" \ 1691 " .set pop \n" \ 1692 : \ 1693 : "r" (x)); \ 1694 }) 1695 1696 #define mthi1(x) \ 1697 ({ \ 1698 __asm__( \ 1699 " .set push \n" \ 1700 " .set dsp \n" \ 1701 " mthi %0, $ac1 \n" \ 1702 " .set pop \n" \ 1703 : \ 1704 : "r" (x)); \ 1705 }) 1706 1707 #define mthi2(x) \ 1708 ({ \ 1709 __asm__( \ 1710 " .set push \n" \ 1711 " .set dsp \n" \ 1712 " mthi %0, $ac2 \n" \ 1713 " .set pop \n" \ 1714 : \ 1715 : "r" (x)); \ 1716 }) 1717 1718 #define mthi3(x) \ 1719 ({ \ 1720 __asm__( \ 1721 " .set push \n" \ 1722 " .set dsp \n" \ 1723 " mthi %0, $ac3 \n" \ 1724 " .set pop \n" \ 1725 : \ 1726 : "r" (x)); \ 1727 }) 1728 1729 #else 1730 1731 #ifdef CONFIG_CPU_MICROMIPS 1732 #define rddsp(mask) \ 1733 ({ \ 1734 unsigned int __res; \ 1735 \ 1736 __asm__ __volatile__( \ 1737 " .set push \n" \ 1738 " .set noat \n" \ 1739 " # rddsp $1, %x1 \n" \ 1740 " .hword ((0x0020067c | (%x1 << 14)) >> 16) \n" \ 1741 " .hword ((0x0020067c | (%x1 << 14)) & 0xffff) \n" \ 1742 " move %0, $1 \n" \ 1743 " .set pop \n" \ 1744 : "=r" (__res) \ 1745 : "i" (mask)); \ 1746 __res; \ 1747 }) 1748 1749 #define wrdsp(val, mask) \ 1750 do { \ 1751 __asm__ __volatile__( \ 1752 " .set push \n" \ 1753 " .set noat \n" \ 1754 " move $1, %0 \n" \ 1755 " # wrdsp $1, %x1 \n" \ 1756 " .hword ((0x0020167c | (%x1 << 14)) >> 16) \n" \ 1757 " .hword ((0x0020167c | (%x1 << 14)) & 0xffff) \n" \ 1758 " .set pop \n" \ 1759 : \ 1760 : "r" (val), "i" (mask)); \ 1761 } while (0) 1762 1763 #define _umips_dsp_mfxxx(ins) \ 1764 ({ \ 1765 unsigned long __treg; \ 1766 \ 1767 __asm__ __volatile__( \ 1768 " .set push \n" \ 1769 " .set noat \n" \ 1770 " .hword 0x0001 \n" \ 1771 " .hword %x1 \n" \ 1772 " move %0, $1 \n" \ 1773 " .set pop \n" \ 1774 : "=r" (__treg) \ 1775 : "i" (ins)); \ 1776 __treg; \ 1777 }) 1778 1779 #define _umips_dsp_mtxxx(val, ins) \ 1780 do { \ 1781 __asm__ __volatile__( \ 1782 " .set push \n" \ 1783 " .set noat \n" \ 1784 " move $1, %0 \n" \ 1785 " .hword 0x0001 \n" \ 1786 " .hword %x1 \n" \ 1787 " .set pop \n" \ 1788 : \ 1789 : "r" (val), "i" (ins)); \ 1790 } while (0) 1791 1792 #define _umips_dsp_mflo(reg) _umips_dsp_mfxxx((reg << 14) | 0x107c) 1793 #define _umips_dsp_mfhi(reg) _umips_dsp_mfxxx((reg << 14) | 0x007c) 1794 1795 #define _umips_dsp_mtlo(val, reg) _umips_dsp_mtxxx(val, ((reg << 14) | 0x307c)) 1796 #define _umips_dsp_mthi(val, reg) _umips_dsp_mtxxx(val, ((reg << 14) | 0x207c)) 1797 1798 #define mflo0() _umips_dsp_mflo(0) 1799 #define mflo1() _umips_dsp_mflo(1) 1800 #define mflo2() _umips_dsp_mflo(2) 1801 #define mflo3() _umips_dsp_mflo(3) 1802 1803 #define mfhi0() _umips_dsp_mfhi(0) 1804 #define mfhi1() _umips_dsp_mfhi(1) 1805 #define mfhi2() _umips_dsp_mfhi(2) 1806 #define mfhi3() _umips_dsp_mfhi(3) 1807 1808 #define mtlo0(x) _umips_dsp_mtlo(x, 0) 1809 #define mtlo1(x) _umips_dsp_mtlo(x, 1) 1810 #define mtlo2(x) _umips_dsp_mtlo(x, 2) 1811 #define mtlo3(x) _umips_dsp_mtlo(x, 3) 1812 1813 #define mthi0(x) _umips_dsp_mthi(x, 0) 1814 #define mthi1(x) _umips_dsp_mthi(x, 1) 1815 #define mthi2(x) _umips_dsp_mthi(x, 2) 1816 #define mthi3(x) _umips_dsp_mthi(x, 3) 1817 1818 #else /* !CONFIG_CPU_MICROMIPS */ 1819 #define rddsp(mask) \ 1820 ({ \ 1821 unsigned int __res; \ 1822 \ 1823 __asm__ __volatile__( \ 1824 " .set push \n" \ 1825 " .set noat \n" \ 1826 " # rddsp $1, %x1 \n" \ 1827 " .word 0x7c000cb8 | (%x1 << 16) \n" \ 1828 " move %0, $1 \n" \ 1829 " .set pop \n" \ 1830 : "=r" (__res) \ 1831 : "i" (mask)); \ 1832 __res; \ 1833 }) 1834 1835 #define wrdsp(val, mask) \ 1836 do { \ 1837 __asm__ __volatile__( \ 1838 " .set push \n" \ 1839 " .set noat \n" \ 1840 " move $1, %0 \n" \ 1841 " # wrdsp $1, %x1 \n" \ 1842 " .word 0x7c2004f8 | (%x1 << 11) \n" \ 1843 " .set pop \n" \ 1844 : \ 1845 : "r" (val), "i" (mask)); \ 1846 } while (0) 1847 1848 #define _dsp_mfxxx(ins) \ 1849 ({ \ 1850 unsigned long __treg; \ 1851 \ 1852 __asm__ __volatile__( \ 1853 " .set push \n" \ 1854 " .set noat \n" \ 1855 " .word (0x00000810 | %1) \n" \ 1856 " move %0, $1 \n" \ 1857 " .set pop \n" \ 1858 : "=r" (__treg) \ 1859 : "i" (ins)); \ 1860 __treg; \ 1861 }) 1862 1863 #define _dsp_mtxxx(val, ins) \ 1864 do { \ 1865 __asm__ __volatile__( \ 1866 " .set push \n" \ 1867 " .set noat \n" \ 1868 " move $1, %0 \n" \ 1869 " .word (0x00200011 | %1) \n" \ 1870 " .set pop \n" \ 1871 : \ 1872 : "r" (val), "i" (ins)); \ 1873 } while (0) 1874 1875 #define _dsp_mflo(reg) _dsp_mfxxx((reg << 21) | 0x0002) 1876 #define _dsp_mfhi(reg) _dsp_mfxxx((reg << 21) | 0x0000) 1877 1878 #define _dsp_mtlo(val, reg) _dsp_mtxxx(val, ((reg << 11) | 0x0002)) 1879 #define _dsp_mthi(val, reg) _dsp_mtxxx(val, ((reg << 11) | 0x0000)) 1880 1881 #define mflo0() _dsp_mflo(0) 1882 #define mflo1() _dsp_mflo(1) 1883 #define mflo2() _dsp_mflo(2) 1884 #define mflo3() _dsp_mflo(3) 1885 1886 #define mfhi0() _dsp_mfhi(0) 1887 #define mfhi1() _dsp_mfhi(1) 1888 #define mfhi2() _dsp_mfhi(2) 1889 #define mfhi3() _dsp_mfhi(3) 1890 1891 #define mtlo0(x) _dsp_mtlo(x, 0) 1892 #define mtlo1(x) _dsp_mtlo(x, 1) 1893 #define mtlo2(x) _dsp_mtlo(x, 2) 1894 #define mtlo3(x) _dsp_mtlo(x, 3) 1895 1896 #define mthi0(x) _dsp_mthi(x, 0) 1897 #define mthi1(x) _dsp_mthi(x, 1) 1898 #define mthi2(x) _dsp_mthi(x, 2) 1899 #define mthi3(x) _dsp_mthi(x, 3) 1900 1901 #endif /* CONFIG_CPU_MICROMIPS */ 1902 #endif 1903 1904 /* 1905 * TLB operations. 1906 * 1907 * It is responsibility of the caller to take care of any TLB hazards. 1908 */ 1909 static inline void tlb_probe(void) 1910 { 1911 __asm__ __volatile__( 1912 ".set noreorder\n\t" 1913 "tlbp\n\t" 1914 ".set reorder"); 1915 } 1916 1917 static inline void tlb_read(void) 1918 { 1919 #if MIPS34K_MISSED_ITLB_WAR 1920 int res = 0; 1921 1922 __asm__ __volatile__( 1923 " .set push \n" 1924 " .set noreorder \n" 1925 " .set noat \n" 1926 " .set mips32r2 \n" 1927 " .word 0x41610001 # dvpe $1 \n" 1928 " move %0, $1 \n" 1929 " ehb \n" 1930 " .set pop \n" 1931 : "=r" (res)); 1932 1933 instruction_hazard(); 1934 #endif 1935 1936 __asm__ __volatile__( 1937 ".set noreorder\n\t" 1938 "tlbr\n\t" 1939 ".set reorder"); 1940 1941 #if MIPS34K_MISSED_ITLB_WAR 1942 if ((res & _ULCAST_(1))) 1943 __asm__ __volatile__( 1944 " .set push \n" 1945 " .set noreorder \n" 1946 " .set noat \n" 1947 " .set mips32r2 \n" 1948 " .word 0x41600021 # evpe \n" 1949 " ehb \n" 1950 " .set pop \n"); 1951 #endif 1952 } 1953 1954 static inline void tlb_write_indexed(void) 1955 { 1956 __asm__ __volatile__( 1957 ".set noreorder\n\t" 1958 "tlbwi\n\t" 1959 ".set reorder"); 1960 } 1961 1962 static inline void tlb_write_random(void) 1963 { 1964 __asm__ __volatile__( 1965 ".set noreorder\n\t" 1966 "tlbwr\n\t" 1967 ".set reorder"); 1968 } 1969 1970 /* 1971 * Manipulate bits in a c0 register. 1972 */ 1973 #define __BUILD_SET_C0(name) \ 1974 static inline unsigned int \ 1975 set_c0_##name(unsigned int set) \ 1976 { \ 1977 unsigned int res, new; \ 1978 \ 1979 res = read_c0_##name(); \ 1980 new = res | set; \ 1981 write_c0_##name(new); \ 1982 \ 1983 return res; \ 1984 } \ 1985 \ 1986 static inline unsigned int \ 1987 clear_c0_##name(unsigned int clear) \ 1988 { \ 1989 unsigned int res, new; \ 1990 \ 1991 res = read_c0_##name(); \ 1992 new = res & ~clear; \ 1993 write_c0_##name(new); \ 1994 \ 1995 return res; \ 1996 } \ 1997 \ 1998 static inline unsigned int \ 1999 change_c0_##name(unsigned int change, unsigned int val) \ 2000 { \ 2001 unsigned int res, new; \ 2002 \ 2003 res = read_c0_##name(); \ 2004 new = res & ~change; \ 2005 new |= (val & change); \ 2006 write_c0_##name(new); \ 2007 \ 2008 return res; \ 2009 } 2010 2011 __BUILD_SET_C0(status) 2012 __BUILD_SET_C0(cause) 2013 __BUILD_SET_C0(config) 2014 __BUILD_SET_C0(config5) 2015 __BUILD_SET_C0(intcontrol) 2016 __BUILD_SET_C0(intctl) 2017 __BUILD_SET_C0(srsmap) 2018 __BUILD_SET_C0(pagegrain) 2019 __BUILD_SET_C0(brcm_config_0) 2020 __BUILD_SET_C0(brcm_bus_pll) 2021 __BUILD_SET_C0(brcm_reset) 2022 __BUILD_SET_C0(brcm_cmt_intr) 2023 __BUILD_SET_C0(brcm_cmt_ctrl) 2024 __BUILD_SET_C0(brcm_config) 2025 __BUILD_SET_C0(brcm_mode) 2026 2027 /* 2028 * Return low 10 bits of ebase. 2029 * Note that under KVM (MIPSVZ) this returns vcpu id. 2030 */ 2031 static inline unsigned int get_ebase_cpunum(void) 2032 { 2033 return read_c0_ebase() & 0x3ff; 2034 } 2035 2036 #endif /* !__ASSEMBLY__ */ 2037 2038 #endif /* _ASM_MIPSREGS_H */ 2039