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 #if 0 17 #include <linux/linkage.h> 18 #endif 19 20 /* 21 * The following macros are especially useful for __asm__ 22 * inline assembler. 23 */ 24 #ifndef __STR 25 #define __STR(x) #x 26 #endif 27 #ifndef STR 28 #define STR(x) __STR(x) 29 #endif 30 31 /* 32 * Configure language 33 */ 34 #ifdef __ASSEMBLY__ 35 #define _ULCAST_ 36 #else 37 #define _ULCAST_ (unsigned long) 38 #endif 39 40 /* 41 * Coprocessor 0 register names 42 */ 43 #define CP0_INDEX $0 44 #define CP0_RANDOM $1 45 #define CP0_ENTRYLO0 $2 46 #define CP0_ENTRYLO1 $3 47 #define CP0_CONF $3 48 #define CP0_CONTEXT $4 49 #define CP0_PAGEMASK $5 50 #define CP0_WIRED $6 51 #define CP0_INFO $7 52 #define CP0_BADVADDR $8 53 #define CP0_COUNT $9 54 #define CP0_ENTRYHI $10 55 #define CP0_COMPARE $11 56 #define CP0_STATUS $12 57 #define CP0_CAUSE $13 58 #define CP0_EPC $14 59 #define CP0_PRID $15 60 #define CP0_CONFIG $16 61 #define CP0_LLADDR $17 62 #define CP0_WATCHLO $18 63 #define CP0_WATCHHI $19 64 #define CP0_XCONTEXT $20 65 #define CP0_FRAMEMASK $21 66 #define CP0_DIAGNOSTIC $22 67 #define CP0_DEBUG $23 68 #define CP0_DEPC $24 69 #define CP0_PERFORMANCE $25 70 #define CP0_ECC $26 71 #define CP0_CACHEERR $27 72 #define CP0_TAGLO $28 73 #define CP0_TAGHI $29 74 #define CP0_ERROREPC $30 75 #define CP0_DESAVE $31 76 77 /* 78 * R4640/R4650 cp0 register names. These registers are listed 79 * here only for completeness; without MMU these CPUs are not useable 80 * by Linux. A future ELKS port might take make Linux run on them 81 * though ... 82 */ 83 #define CP0_IBASE $0 84 #define CP0_IBOUND $1 85 #define CP0_DBASE $2 86 #define CP0_DBOUND $3 87 #define CP0_CALG $17 88 #define CP0_IWATCH $18 89 #define CP0_DWATCH $19 90 91 /* 92 * Coprocessor 0 Set 1 register names 93 */ 94 #define CP0_S1_DERRADDR0 $26 95 #define CP0_S1_DERRADDR1 $27 96 #define CP0_S1_INTCONTROL $20 97 98 /* 99 * Coprocessor 0 Set 2 register names 100 */ 101 #define CP0_S2_SRSCTL $12 /* MIPSR2 */ 102 103 /* 104 * Coprocessor 0 Set 3 register names 105 */ 106 #define CP0_S3_SRSMAP $12 /* MIPSR2 */ 107 108 /* 109 * TX39 Series 110 */ 111 #define CP0_TX39_CACHE $7 112 113 /* 114 * Coprocessor 1 (FPU) register names 115 */ 116 #define CP1_REVISION $0 117 #define CP1_STATUS $31 118 119 /* 120 * FPU Status Register Values 121 */ 122 /* 123 * Status Register Values 124 */ 125 126 #define FPU_CSR_FLUSH 0x01000000 /* flush denormalised results to 0 */ 127 #define FPU_CSR_COND 0x00800000 /* $fcc0 */ 128 #define FPU_CSR_COND0 0x00800000 /* $fcc0 */ 129 #define FPU_CSR_COND1 0x02000000 /* $fcc1 */ 130 #define FPU_CSR_COND2 0x04000000 /* $fcc2 */ 131 #define FPU_CSR_COND3 0x08000000 /* $fcc3 */ 132 #define FPU_CSR_COND4 0x10000000 /* $fcc4 */ 133 #define FPU_CSR_COND5 0x20000000 /* $fcc5 */ 134 #define FPU_CSR_COND6 0x40000000 /* $fcc6 */ 135 #define FPU_CSR_COND7 0x80000000 /* $fcc7 */ 136 137 /* 138 * X the exception cause indicator 139 * E the exception enable 140 * S the sticky/flag bit 141 */ 142 #define FPU_CSR_ALL_X 0x0003f000 143 #define FPU_CSR_UNI_X 0x00020000 144 #define FPU_CSR_INV_X 0x00010000 145 #define FPU_CSR_DIV_X 0x00008000 146 #define FPU_CSR_OVF_X 0x00004000 147 #define FPU_CSR_UDF_X 0x00002000 148 #define FPU_CSR_INE_X 0x00001000 149 150 #define FPU_CSR_ALL_E 0x00000f80 151 #define FPU_CSR_INV_E 0x00000800 152 #define FPU_CSR_DIV_E 0x00000400 153 #define FPU_CSR_OVF_E 0x00000200 154 #define FPU_CSR_UDF_E 0x00000100 155 #define FPU_CSR_INE_E 0x00000080 156 157 #define FPU_CSR_ALL_S 0x0000007c 158 #define FPU_CSR_INV_S 0x00000040 159 #define FPU_CSR_DIV_S 0x00000020 160 #define FPU_CSR_OVF_S 0x00000010 161 #define FPU_CSR_UDF_S 0x00000008 162 #define FPU_CSR_INE_S 0x00000004 163 164 /* rounding mode */ 165 #define FPU_CSR_RN 0x0 /* nearest */ 166 #define FPU_CSR_RZ 0x1 /* towards zero */ 167 #define FPU_CSR_RU 0x2 /* towards +Infinity */ 168 #define FPU_CSR_RD 0x3 /* towards -Infinity */ 169 170 /* 171 * Values for PageMask register 172 */ 173 #ifdef CONFIG_CPU_VR41XX 174 175 /* Why doesn't stupidity hurt ... */ 176 177 #define PM_1K 0x00000000 178 #define PM_4K 0x00001800 179 #define PM_16K 0x00007800 180 #define PM_64K 0x0001f800 181 #define PM_256K 0x0007f800 182 183 #else 184 185 #define PM_4K 0x00000000 186 #define PM_16K 0x00006000 187 #define PM_64K 0x0001e000 188 #define PM_256K 0x0007e000 189 #define PM_1M 0x001fe000 190 #define PM_4M 0x007fe000 191 #define PM_16M 0x01ffe000 192 #define PM_64M 0x07ffe000 193 #define PM_256M 0x1fffe000 194 195 #endif 196 197 /* 198 * Values used for computation of new tlb entries 199 */ 200 #define PL_4K 12 201 #define PL_16K 14 202 #define PL_64K 16 203 #define PL_256K 18 204 #define PL_1M 20 205 #define PL_4M 22 206 #define PL_16M 24 207 #define PL_64M 26 208 #define PL_256M 28 209 210 /* 211 * R4x00 interrupt enable / cause bits 212 */ 213 #define IE_SW0 (_ULCAST_(1) << 8) 214 #define IE_SW1 (_ULCAST_(1) << 9) 215 #define IE_IRQ0 (_ULCAST_(1) << 10) 216 #define IE_IRQ1 (_ULCAST_(1) << 11) 217 #define IE_IRQ2 (_ULCAST_(1) << 12) 218 #define IE_IRQ3 (_ULCAST_(1) << 13) 219 #define IE_IRQ4 (_ULCAST_(1) << 14) 220 #define IE_IRQ5 (_ULCAST_(1) << 15) 221 222 /* 223 * R4x00 interrupt cause bits 224 */ 225 #define C_SW0 (_ULCAST_(1) << 8) 226 #define C_SW1 (_ULCAST_(1) << 9) 227 #define C_IRQ0 (_ULCAST_(1) << 10) 228 #define C_IRQ1 (_ULCAST_(1) << 11) 229 #define C_IRQ2 (_ULCAST_(1) << 12) 230 #define C_IRQ3 (_ULCAST_(1) << 13) 231 #define C_IRQ4 (_ULCAST_(1) << 14) 232 #define C_IRQ5 (_ULCAST_(1) << 15) 233 234 /* 235 * Bitfields in the R4xx0 cp0 status register 236 */ 237 #define ST0_IE 0x00000001 238 #define ST0_EXL 0x00000002 239 #define ST0_ERL 0x00000004 240 #define ST0_KSU 0x00000018 241 # define KSU_USER 0x00000010 242 # define KSU_SUPERVISOR 0x00000008 243 # define KSU_KERNEL 0x00000000 244 #define ST0_UX 0x00000020 245 #define ST0_SX 0x00000040 246 #define ST0_KX 0x00000080 247 #define ST0_DE 0x00010000 248 #define ST0_CE 0x00020000 249 250 /* 251 * Setting c0_status.co enables Hit_Writeback and Hit_Writeback_Invalidate 252 * cacheops in userspace. This bit exists only on RM7000 and RM9000 253 * processors. 254 */ 255 #define ST0_CO 0x08000000 256 257 /* 258 * Bitfields in the R[23]000 cp0 status register. 259 */ 260 #define ST0_IEC 0x00000001 261 #define ST0_KUC 0x00000002 262 #define ST0_IEP 0x00000004 263 #define ST0_KUP 0x00000008 264 #define ST0_IEO 0x00000010 265 #define ST0_KUO 0x00000020 266 /* bits 6 & 7 are reserved on R[23]000 */ 267 #define ST0_ISC 0x00010000 268 #define ST0_SWC 0x00020000 269 #define ST0_CM 0x00080000 270 271 /* 272 * Bits specific to the R4640/R4650 273 */ 274 #define ST0_UM (_ULCAST_(1) << 4) 275 #define ST0_IL (_ULCAST_(1) << 23) 276 #define ST0_DL (_ULCAST_(1) << 24) 277 278 /* 279 * Enable the MIPS MDMX and DSP ASEs 280 */ 281 #define ST0_MX 0x01000000 282 283 /* 284 * Bitfields in the TX39 family CP0 Configuration Register 3 285 */ 286 #define TX39_CONF_ICS_SHIFT 19 287 #define TX39_CONF_ICS_MASK 0x00380000 288 #define TX39_CONF_ICS_1KB 0x00000000 289 #define TX39_CONF_ICS_2KB 0x00080000 290 #define TX39_CONF_ICS_4KB 0x00100000 291 #define TX39_CONF_ICS_8KB 0x00180000 292 #define TX39_CONF_ICS_16KB 0x00200000 293 294 #define TX39_CONF_DCS_SHIFT 16 295 #define TX39_CONF_DCS_MASK 0x00070000 296 #define TX39_CONF_DCS_1KB 0x00000000 297 #define TX39_CONF_DCS_2KB 0x00010000 298 #define TX39_CONF_DCS_4KB 0x00020000 299 #define TX39_CONF_DCS_8KB 0x00030000 300 #define TX39_CONF_DCS_16KB 0x00040000 301 302 #define TX39_CONF_CWFON 0x00004000 303 #define TX39_CONF_WBON 0x00002000 304 #define TX39_CONF_RF_SHIFT 10 305 #define TX39_CONF_RF_MASK 0x00000c00 306 #define TX39_CONF_DOZE 0x00000200 307 #define TX39_CONF_HALT 0x00000100 308 #define TX39_CONF_LOCK 0x00000080 309 #define TX39_CONF_ICE 0x00000020 310 #define TX39_CONF_DCE 0x00000010 311 #define TX39_CONF_IRSIZE_SHIFT 2 312 #define TX39_CONF_IRSIZE_MASK 0x0000000c 313 #define TX39_CONF_DRSIZE_SHIFT 0 314 #define TX39_CONF_DRSIZE_MASK 0x00000003 315 316 /* 317 * Status register bits available in all MIPS CPUs. 318 */ 319 #define ST0_IM 0x0000ff00 320 #define STATUSB_IP0 8 321 #define STATUSF_IP0 (_ULCAST_(1) << 8) 322 #define STATUSB_IP1 9 323 #define STATUSF_IP1 (_ULCAST_(1) << 9) 324 #define STATUSB_IP2 10 325 #define STATUSF_IP2 (_ULCAST_(1) << 10) 326 #define STATUSB_IP3 11 327 #define STATUSF_IP3 (_ULCAST_(1) << 11) 328 #define STATUSB_IP4 12 329 #define STATUSF_IP4 (_ULCAST_(1) << 12) 330 #define STATUSB_IP5 13 331 #define STATUSF_IP5 (_ULCAST_(1) << 13) 332 #define STATUSB_IP6 14 333 #define STATUSF_IP6 (_ULCAST_(1) << 14) 334 #define STATUSB_IP7 15 335 #define STATUSF_IP7 (_ULCAST_(1) << 15) 336 #define STATUSB_IP8 0 337 #define STATUSF_IP8 (_ULCAST_(1) << 0) 338 #define STATUSB_IP9 1 339 #define STATUSF_IP9 (_ULCAST_(1) << 1) 340 #define STATUSB_IP10 2 341 #define STATUSF_IP10 (_ULCAST_(1) << 2) 342 #define STATUSB_IP11 3 343 #define STATUSF_IP11 (_ULCAST_(1) << 3) 344 #define STATUSB_IP12 4 345 #define STATUSF_IP12 (_ULCAST_(1) << 4) 346 #define STATUSB_IP13 5 347 #define STATUSF_IP13 (_ULCAST_(1) << 5) 348 #define STATUSB_IP14 6 349 #define STATUSF_IP14 (_ULCAST_(1) << 6) 350 #define STATUSB_IP15 7 351 #define STATUSF_IP15 (_ULCAST_(1) << 7) 352 #define ST0_CH 0x00040000 353 #define ST0_SR 0x00100000 354 #define ST0_TS 0x00200000 355 #define ST0_BEV 0x00400000 356 #define ST0_RE 0x02000000 357 #define ST0_FR 0x04000000 358 #define ST0_CU 0xf0000000 359 #define ST0_CU0 0x10000000 360 #define ST0_CU1 0x20000000 361 #define ST0_CU2 0x40000000 362 #define ST0_CU3 0x80000000 363 #define ST0_XX 0x80000000 /* MIPS IV naming */ 364 365 /* 366 * Bitfields and bit numbers in the coprocessor 0 cause register. 367 * 368 * Refer to your MIPS R4xx0 manual, chapter 5 for explanation. 369 */ 370 #define CAUSEB_EXCCODE 2 371 #define CAUSEF_EXCCODE (_ULCAST_(31) << 2) 372 #define CAUSEB_IP 8 373 #define CAUSEF_IP (_ULCAST_(255) << 8) 374 #define CAUSEB_IP0 8 375 #define CAUSEF_IP0 (_ULCAST_(1) << 8) 376 #define CAUSEB_IP1 9 377 #define CAUSEF_IP1 (_ULCAST_(1) << 9) 378 #define CAUSEB_IP2 10 379 #define CAUSEF_IP2 (_ULCAST_(1) << 10) 380 #define CAUSEB_IP3 11 381 #define CAUSEF_IP3 (_ULCAST_(1) << 11) 382 #define CAUSEB_IP4 12 383 #define CAUSEF_IP4 (_ULCAST_(1) << 12) 384 #define CAUSEB_IP5 13 385 #define CAUSEF_IP5 (_ULCAST_(1) << 13) 386 #define CAUSEB_IP6 14 387 #define CAUSEF_IP6 (_ULCAST_(1) << 14) 388 #define CAUSEB_IP7 15 389 #define CAUSEF_IP7 (_ULCAST_(1) << 15) 390 #define CAUSEB_IV 23 391 #define CAUSEF_IV (_ULCAST_(1) << 23) 392 #define CAUSEB_CE 28 393 #define CAUSEF_CE (_ULCAST_(3) << 28) 394 #define CAUSEB_BD 31 395 #define CAUSEF_BD (_ULCAST_(1) << 31) 396 397 /* 398 * Bits in the coprocessor 0 config register. 399 */ 400 /* Generic bits. */ 401 #define CONF_CM_CACHABLE_NO_WA 0 402 #define CONF_CM_CACHABLE_WA 1 403 #define CONF_CM_UNCACHED 2 404 #define CONF_CM_CACHABLE_NONCOHERENT 3 405 #define CONF_CM_CACHABLE_CE 4 406 #define CONF_CM_CACHABLE_COW 5 407 #define CONF_CM_CACHABLE_CUW 6 408 #define CONF_CM_CACHABLE_ACCELERATED 7 409 #define CONF_CM_CMASK 7 410 #define CONF_BE (_ULCAST_(1) << 15) 411 412 /* Bits common to various processors. */ 413 #define CONF_CU (_ULCAST_(1) << 3) 414 #define CONF_DB (_ULCAST_(1) << 4) 415 #define CONF_IB (_ULCAST_(1) << 5) 416 #define CONF_DC (_ULCAST_(7) << 6) 417 #define CONF_IC (_ULCAST_(7) << 9) 418 #define CONF_EB (_ULCAST_(1) << 13) 419 #define CONF_EM (_ULCAST_(1) << 14) 420 #define CONF_SM (_ULCAST_(1) << 16) 421 #define CONF_SC (_ULCAST_(1) << 17) 422 #define CONF_EW (_ULCAST_(3) << 18) 423 #define CONF_EP (_ULCAST_(15)<< 24) 424 #define CONF_EC (_ULCAST_(7) << 28) 425 #define CONF_CM (_ULCAST_(1) << 31) 426 427 /* Bits specific to the R4xx0. */ 428 #define R4K_CONF_SW (_ULCAST_(1) << 20) 429 #define R4K_CONF_SS (_ULCAST_(1) << 21) 430 #define R4K_CONF_SB (_ULCAST_(3) << 22) 431 432 /* Bits specific to the R5000. */ 433 #define R5K_CONF_SE (_ULCAST_(1) << 12) 434 #define R5K_CONF_SS (_ULCAST_(3) << 20) 435 436 /* Bits specific to the RM7000. */ 437 #define RM7K_CONF_SE (_ULCAST_(1) << 3) 438 #define RM7K_CONF_TE (_ULCAST_(1) << 12) 439 #define RM7K_CONF_CLK (_ULCAST_(1) << 16) 440 #define RM7K_CONF_TC (_ULCAST_(1) << 17) 441 #define RM7K_CONF_SI (_ULCAST_(3) << 20) 442 #define RM7K_CONF_SC (_ULCAST_(1) << 31) 443 444 /* Bits specific to the R10000. */ 445 #define R10K_CONF_DN (_ULCAST_(3) << 3) 446 #define R10K_CONF_CT (_ULCAST_(1) << 5) 447 #define R10K_CONF_PE (_ULCAST_(1) << 6) 448 #define R10K_CONF_PM (_ULCAST_(3) << 7) 449 #define R10K_CONF_EC (_ULCAST_(15)<< 9) 450 #define R10K_CONF_SB (_ULCAST_(1) << 13) 451 #define R10K_CONF_SK (_ULCAST_(1) << 14) 452 #define R10K_CONF_SS (_ULCAST_(7) << 16) 453 #define R10K_CONF_SC (_ULCAST_(7) << 19) 454 #define R10K_CONF_DC (_ULCAST_(7) << 26) 455 #define R10K_CONF_IC (_ULCAST_(7) << 29) 456 457 /* Bits specific to the VR41xx. */ 458 #define VR41_CONF_CS (_ULCAST_(1) << 12) 459 #define VR41_CONF_P4K (_ULCAST_(1) << 13) 460 #define VR41_CONF_BP (_ULCAST_(1) << 16) 461 #define VR41_CONF_M16 (_ULCAST_(1) << 20) 462 #define VR41_CONF_AD (_ULCAST_(1) << 23) 463 464 /* Bits specific to the R30xx. */ 465 #define R30XX_CONF_FDM (_ULCAST_(1) << 19) 466 #define R30XX_CONF_REV (_ULCAST_(1) << 22) 467 #define R30XX_CONF_AC (_ULCAST_(1) << 23) 468 #define R30XX_CONF_RF (_ULCAST_(1) << 24) 469 #define R30XX_CONF_HALT (_ULCAST_(1) << 25) 470 #define R30XX_CONF_FPINT (_ULCAST_(7) << 26) 471 #define R30XX_CONF_DBR (_ULCAST_(1) << 29) 472 #define R30XX_CONF_SB (_ULCAST_(1) << 30) 473 #define R30XX_CONF_LOCK (_ULCAST_(1) << 31) 474 475 /* Bits specific to the TX49. */ 476 #define TX49_CONF_DC (_ULCAST_(1) << 16) 477 #define TX49_CONF_IC (_ULCAST_(1) << 17) /* conflict with CONF_SC */ 478 #define TX49_CONF_HALT (_ULCAST_(1) << 18) 479 #define TX49_CONF_CWFON (_ULCAST_(1) << 27) 480 481 /* Bits specific to the MIPS32/64 PRA. */ 482 #define MIPS_CONF_MT (_ULCAST_(7) << 7) 483 #define MIPS_CONF_AR (_ULCAST_(7) << 10) 484 #define MIPS_CONF_AT (_ULCAST_(3) << 13) 485 #define MIPS_CONF_M (_ULCAST_(1) << 31) 486 487 /* 488 * Bits in the MIPS32/64 PRA coprocessor 0 config registers 1 and above. 489 */ 490 #define MIPS_CONF1_FP (_ULCAST_(1) << 0) 491 #define MIPS_CONF1_EP (_ULCAST_(1) << 1) 492 #define MIPS_CONF1_CA (_ULCAST_(1) << 2) 493 #define MIPS_CONF1_WR (_ULCAST_(1) << 3) 494 #define MIPS_CONF1_PC (_ULCAST_(1) << 4) 495 #define MIPS_CONF1_MD (_ULCAST_(1) << 5) 496 #define MIPS_CONF1_C2 (_ULCAST_(1) << 6) 497 #define MIPS_CONF1_DA_SHIFT 7 498 #define MIPS_CONF1_DA (_ULCAST_(7) << 7) 499 #define MIPS_CONF1_DL_SHIFT 10 500 #define MIPS_CONF1_DL (_ULCAST_(7) << 10) 501 #define MIPS_CONF1_DS_SHIFT 13 502 #define MIPS_CONF1_DS (_ULCAST_(7) << 13) 503 #define MIPS_CONF1_IA_SHIFT 16 504 #define MIPS_CONF1_IA (_ULCAST_(7) << 16) 505 #define MIPS_CONF1_IL_SHIFT 19 506 #define MIPS_CONF1_IL (_ULCAST_(7) << 19) 507 #define MIPS_CONF1_IS_SHIFT 22 508 #define MIPS_CONF1_IS (_ULCAST_(7) << 22) 509 #define MIPS_CONF1_TLBS (_ULCAST_(63)<< 25) 510 511 #define MIPS_CONF2_SA (_ULCAST_(15)<< 0) 512 #define MIPS_CONF2_SL (_ULCAST_(15)<< 4) 513 #define MIPS_CONF2_SS (_ULCAST_(15)<< 8) 514 #define MIPS_CONF2_SU (_ULCAST_(15)<< 12) 515 #define MIPS_CONF2_TA (_ULCAST_(15)<< 16) 516 #define MIPS_CONF2_TL (_ULCAST_(15)<< 20) 517 #define MIPS_CONF2_TS (_ULCAST_(15)<< 24) 518 #define MIPS_CONF2_TU (_ULCAST_(7) << 28) 519 520 #define MIPS_CONF3_TL (_ULCAST_(1) << 0) 521 #define MIPS_CONF3_SM (_ULCAST_(1) << 1) 522 #define MIPS_CONF3_MT (_ULCAST_(1) << 2) 523 #define MIPS_CONF3_SP (_ULCAST_(1) << 4) 524 #define MIPS_CONF3_VINT (_ULCAST_(1) << 5) 525 #define MIPS_CONF3_VEIC (_ULCAST_(1) << 6) 526 #define MIPS_CONF3_LPA (_ULCAST_(1) << 7) 527 #define MIPS_CONF3_DSP (_ULCAST_(1) << 10) 528 #define MIPS_CONF3_ULRI (_ULCAST_(1) << 13) 529 530 #define MIPS_CONF7_WII (_ULCAST_(1) << 31) 531 532 #define MIPS_CONF7_RPS (_ULCAST_(1) << 2) 533 534 /* 535 * Bits in the MIPS32/64 coprocessor 1 (FPU) revision register. 536 */ 537 #define MIPS_FPIR_S (_ULCAST_(1) << 16) 538 #define MIPS_FPIR_D (_ULCAST_(1) << 17) 539 #define MIPS_FPIR_PS (_ULCAST_(1) << 18) 540 #define MIPS_FPIR_3D (_ULCAST_(1) << 19) 541 #define MIPS_FPIR_W (_ULCAST_(1) << 20) 542 #define MIPS_FPIR_L (_ULCAST_(1) << 21) 543 #define MIPS_FPIR_F64 (_ULCAST_(1) << 22) 544 545 #ifndef __ASSEMBLY__ 546 547 /* 548 * Functions to access the R10000 performance counters. These are basically 549 * mfc0 and mtc0 instructions from and to coprocessor register with a 5-bit 550 * performance counter number encoded into bits 1 ... 5 of the instruction. 551 * Only performance counters 0 to 1 actually exist, so for a non-R10000 aware 552 * disassembler these will look like an access to sel 0 or 1. 553 */ 554 #define read_r10k_perf_cntr(counter) \ 555 ({ \ 556 unsigned int __res; \ 557 __asm__ __volatile__( \ 558 "mfpc\t%0, %1" \ 559 : "=r" (__res) \ 560 : "i" (counter)); \ 561 \ 562 __res; \ 563 }) 564 565 #define write_r10k_perf_cntr(counter,val) \ 566 do { \ 567 __asm__ __volatile__( \ 568 "mtpc\t%0, %1" \ 569 : \ 570 : "r" (val), "i" (counter)); \ 571 } while (0) 572 573 #define read_r10k_perf_event(counter) \ 574 ({ \ 575 unsigned int __res; \ 576 __asm__ __volatile__( \ 577 "mfps\t%0, %1" \ 578 : "=r" (__res) \ 579 : "i" (counter)); \ 580 \ 581 __res; \ 582 }) 583 584 #define write_r10k_perf_cntl(counter,val) \ 585 do { \ 586 __asm__ __volatile__( \ 587 "mtps\t%0, %1" \ 588 : \ 589 : "r" (val), "i" (counter)); \ 590 } while (0) 591 592 /* 593 * Macros to access the system control coprocessor 594 */ 595 596 #define __read_32bit_c0_register(source, sel) \ 597 ({ int __res; \ 598 if (sel == 0) \ 599 __asm__ __volatile__( \ 600 "mfc0\t%0, " #source "\n\t" \ 601 : "=r" (__res)); \ 602 else \ 603 __asm__ __volatile__( \ 604 ".set\tmips32\n\t" \ 605 "mfc0\t%0, " #source ", " #sel "\n\t" \ 606 ".set\tmips0\n\t" \ 607 : "=r" (__res)); \ 608 __res; \ 609 }) 610 611 #define __read_64bit_c0_register(source, sel) \ 612 ({ unsigned long long __res; \ 613 if (sizeof(unsigned long) == 4) \ 614 __res = __read_64bit_c0_split(source, sel); \ 615 else if (sel == 0) \ 616 __asm__ __volatile__( \ 617 ".set\tmips3\n\t" \ 618 "dmfc0\t%0, " #source "\n\t" \ 619 ".set\tmips0" \ 620 : "=r" (__res)); \ 621 else \ 622 __asm__ __volatile__( \ 623 ".set\tmips64\n\t" \ 624 "dmfc0\t%0, " #source ", " #sel "\n\t" \ 625 ".set\tmips0" \ 626 : "=r" (__res)); \ 627 __res; \ 628 }) 629 630 #define __write_32bit_c0_register(register, sel, value) \ 631 do { \ 632 if (sel == 0) \ 633 __asm__ __volatile__( \ 634 "mtc0\t%z0, " #register "\n\t" \ 635 : : "Jr" ((unsigned int)(value))); \ 636 else \ 637 __asm__ __volatile__( \ 638 ".set\tmips32\n\t" \ 639 "mtc0\t%z0, " #register ", " #sel "\n\t" \ 640 ".set\tmips0" \ 641 : : "Jr" ((unsigned int)(value))); \ 642 } while (0) 643 644 #define __write_64bit_c0_register(register, sel, value) \ 645 do { \ 646 if (sizeof(unsigned long) == 4) \ 647 __write_64bit_c0_split(register, sel, value); \ 648 else if (sel == 0) \ 649 __asm__ __volatile__( \ 650 ".set\tmips3\n\t" \ 651 "dmtc0\t%z0, " #register "\n\t" \ 652 ".set\tmips0" \ 653 : : "Jr" (value)); \ 654 else \ 655 __asm__ __volatile__( \ 656 ".set\tmips64\n\t" \ 657 "dmtc0\t%z0, " #register ", " #sel "\n\t" \ 658 ".set\tmips0" \ 659 : : "Jr" (value)); \ 660 } while (0) 661 662 #define __read_ulong_c0_register(reg, sel) \ 663 ((sizeof(unsigned long) == 4) ? \ 664 (unsigned long) __read_32bit_c0_register(reg, sel) : \ 665 (unsigned long) __read_64bit_c0_register(reg, sel)) 666 667 #define __write_ulong_c0_register(reg, sel, val) \ 668 do { \ 669 if (sizeof(unsigned long) == 4) \ 670 __write_32bit_c0_register(reg, sel, val); \ 671 else \ 672 __write_64bit_c0_register(reg, sel, val); \ 673 } while (0) 674 675 /* 676 * On RM7000/RM9000 these are uses to access cop0 set 1 registers 677 */ 678 #define __read_32bit_c0_ctrl_register(source) \ 679 ({ int __res; \ 680 __asm__ __volatile__( \ 681 "cfc0\t%0, " #source "\n\t" \ 682 : "=r" (__res)); \ 683 __res; \ 684 }) 685 686 #define __write_32bit_c0_ctrl_register(register, value) \ 687 do { \ 688 __asm__ __volatile__( \ 689 "ctc0\t%z0, " #register "\n\t" \ 690 : : "Jr" ((unsigned int)(value))); \ 691 } while (0) 692 693 /* 694 * These versions are only needed for systems with more than 38 bits of 695 * physical address space running the 32-bit kernel. That's none atm :-) 696 */ 697 #define __read_64bit_c0_split(source, sel) \ 698 ({ \ 699 unsigned long long __val; \ 700 unsigned long __flags; \ 701 \ 702 local_irq_save(__flags); \ 703 if (sel == 0) \ 704 __asm__ __volatile__( \ 705 ".set\tmips64\n\t" \ 706 "dmfc0\t%M0, " #source "\n\t" \ 707 "dsll\t%L0, %M0, 32\n\t" \ 708 "dsrl\t%M0, %M0, 32\n\t" \ 709 "dsrl\t%L0, %L0, 32\n\t" \ 710 ".set\tmips0" \ 711 : "=r" (__val)); \ 712 else \ 713 __asm__ __volatile__( \ 714 ".set\tmips64\n\t" \ 715 "dmfc0\t%M0, " #source ", " #sel "\n\t" \ 716 "dsll\t%L0, %M0, 32\n\t" \ 717 "dsrl\t%M0, %M0, 32\n\t" \ 718 "dsrl\t%L0, %L0, 32\n\t" \ 719 ".set\tmips0" \ 720 : "=r" (__val)); \ 721 local_irq_restore(__flags); \ 722 \ 723 __val; \ 724 }) 725 726 #define __write_64bit_c0_split(source, sel, val) \ 727 do { \ 728 unsigned long __flags; \ 729 \ 730 local_irq_save(__flags); \ 731 if (sel == 0) \ 732 __asm__ __volatile__( \ 733 ".set\tmips64\n\t" \ 734 "dsll\t%L0, %L0, 32\n\t" \ 735 "dsrl\t%L0, %L0, 32\n\t" \ 736 "dsll\t%M0, %M0, 32\n\t" \ 737 "or\t%L0, %L0, %M0\n\t" \ 738 "dmtc0\t%L0, " #source "\n\t" \ 739 ".set\tmips0" \ 740 : : "r" (val)); \ 741 else \ 742 __asm__ __volatile__( \ 743 ".set\tmips64\n\t" \ 744 "dsll\t%L0, %L0, 32\n\t" \ 745 "dsrl\t%L0, %L0, 32\n\t" \ 746 "dsll\t%M0, %M0, 32\n\t" \ 747 "or\t%L0, %L0, %M0\n\t" \ 748 "dmtc0\t%L0, " #source ", " #sel "\n\t" \ 749 ".set\tmips0" \ 750 : : "r" (val)); \ 751 local_irq_restore(__flags); \ 752 } while (0) 753 754 #define read_c0_index() __read_32bit_c0_register($0, 0) 755 #define write_c0_index(val) __write_32bit_c0_register($0, 0, val) 756 757 #define read_c0_entrylo0() __read_ulong_c0_register($2, 0) 758 #define write_c0_entrylo0(val) __write_ulong_c0_register($2, 0, val) 759 760 #define read_c0_entrylo1() __read_ulong_c0_register($3, 0) 761 #define write_c0_entrylo1(val) __write_ulong_c0_register($3, 0, val) 762 763 #define read_c0_conf() __read_32bit_c0_register($3, 0) 764 #define write_c0_conf(val) __write_32bit_c0_register($3, 0, val) 765 766 #define read_c0_context() __read_ulong_c0_register($4, 0) 767 #define write_c0_context(val) __write_ulong_c0_register($4, 0, val) 768 769 #define read_c0_userlocal() __read_ulong_c0_register($4, 2) 770 #define write_c0_userlocal(val) __write_ulong_c0_register($4, 2, val) 771 772 #define read_c0_pagemask() __read_32bit_c0_register($5, 0) 773 #define write_c0_pagemask(val) __write_32bit_c0_register($5, 0, val) 774 775 #define read_c0_wired() __read_32bit_c0_register($6, 0) 776 #define write_c0_wired(val) __write_32bit_c0_register($6, 0, val) 777 778 #define read_c0_info() __read_32bit_c0_register($7, 0) 779 780 #define read_c0_cache() __read_32bit_c0_register($7, 0) /* TX39xx */ 781 #define write_c0_cache(val) __write_32bit_c0_register($7, 0, val) 782 783 #define read_c0_badvaddr() __read_ulong_c0_register($8, 0) 784 #define write_c0_badvaddr(val) __write_ulong_c0_register($8, 0, val) 785 786 #define read_c0_count() __read_32bit_c0_register($9, 0) 787 #define write_c0_count(val) __write_32bit_c0_register($9, 0, val) 788 789 #define read_c0_count2() __read_32bit_c0_register($9, 6) /* pnx8550 */ 790 #define write_c0_count2(val) __write_32bit_c0_register($9, 6, val) 791 792 #define read_c0_count3() __read_32bit_c0_register($9, 7) /* pnx8550 */ 793 #define write_c0_count3(val) __write_32bit_c0_register($9, 7, val) 794 795 #define read_c0_entryhi() __read_ulong_c0_register($10, 0) 796 #define write_c0_entryhi(val) __write_ulong_c0_register($10, 0, val) 797 798 #define read_c0_compare() __read_32bit_c0_register($11, 0) 799 #define write_c0_compare(val) __write_32bit_c0_register($11, 0, val) 800 801 #define read_c0_compare2() __read_32bit_c0_register($11, 6) /* pnx8550 */ 802 #define write_c0_compare2(val) __write_32bit_c0_register($11, 6, val) 803 804 #define read_c0_compare3() __read_32bit_c0_register($11, 7) /* pnx8550 */ 805 #define write_c0_compare3(val) __write_32bit_c0_register($11, 7, val) 806 807 #define read_c0_status() __read_32bit_c0_register($12, 0) 808 #ifdef CONFIG_MIPS_MT_SMTC 809 #define write_c0_status(val) \ 810 do { \ 811 __write_32bit_c0_register($12, 0, val); \ 812 __ehb(); \ 813 } while (0) 814 #else 815 /* 816 * Legacy non-SMTC code, which may be hazardous 817 * but which might not support EHB 818 */ 819 #define write_c0_status(val) __write_32bit_c0_register($12, 0, val) 820 #endif /* CONFIG_MIPS_MT_SMTC */ 821 822 #define read_c0_cause() __read_32bit_c0_register($13, 0) 823 #define write_c0_cause(val) __write_32bit_c0_register($13, 0, val) 824 825 #define read_c0_epc() __read_ulong_c0_register($14, 0) 826 #define write_c0_epc(val) __write_ulong_c0_register($14, 0, val) 827 828 #define read_c0_prid() __read_32bit_c0_register($15, 0) 829 830 #define read_c0_config() __read_32bit_c0_register($16, 0) 831 #define read_c0_config1() __read_32bit_c0_register($16, 1) 832 #define read_c0_config2() __read_32bit_c0_register($16, 2) 833 #define read_c0_config3() __read_32bit_c0_register($16, 3) 834 #define read_c0_config4() __read_32bit_c0_register($16, 4) 835 #define read_c0_config5() __read_32bit_c0_register($16, 5) 836 #define read_c0_config6() __read_32bit_c0_register($16, 6) 837 #define read_c0_config7() __read_32bit_c0_register($16, 7) 838 #define write_c0_config(val) __write_32bit_c0_register($16, 0, val) 839 #define write_c0_config1(val) __write_32bit_c0_register($16, 1, val) 840 #define write_c0_config2(val) __write_32bit_c0_register($16, 2, val) 841 #define write_c0_config3(val) __write_32bit_c0_register($16, 3, val) 842 #define write_c0_config4(val) __write_32bit_c0_register($16, 4, val) 843 #define write_c0_config5(val) __write_32bit_c0_register($16, 5, val) 844 #define write_c0_config6(val) __write_32bit_c0_register($16, 6, val) 845 #define write_c0_config7(val) __write_32bit_c0_register($16, 7, val) 846 847 /* 848 * The WatchLo register. There may be upto 8 of them. 849 */ 850 #define read_c0_watchlo0() __read_ulong_c0_register($18, 0) 851 #define read_c0_watchlo1() __read_ulong_c0_register($18, 1) 852 #define read_c0_watchlo2() __read_ulong_c0_register($18, 2) 853 #define read_c0_watchlo3() __read_ulong_c0_register($18, 3) 854 #define read_c0_watchlo4() __read_ulong_c0_register($18, 4) 855 #define read_c0_watchlo5() __read_ulong_c0_register($18, 5) 856 #define read_c0_watchlo6() __read_ulong_c0_register($18, 6) 857 #define read_c0_watchlo7() __read_ulong_c0_register($18, 7) 858 #define write_c0_watchlo0(val) __write_ulong_c0_register($18, 0, val) 859 #define write_c0_watchlo1(val) __write_ulong_c0_register($18, 1, val) 860 #define write_c0_watchlo2(val) __write_ulong_c0_register($18, 2, val) 861 #define write_c0_watchlo3(val) __write_ulong_c0_register($18, 3, val) 862 #define write_c0_watchlo4(val) __write_ulong_c0_register($18, 4, val) 863 #define write_c0_watchlo5(val) __write_ulong_c0_register($18, 5, val) 864 #define write_c0_watchlo6(val) __write_ulong_c0_register($18, 6, val) 865 #define write_c0_watchlo7(val) __write_ulong_c0_register($18, 7, val) 866 867 /* 868 * The WatchHi register. There may be upto 8 of them. 869 */ 870 #define read_c0_watchhi0() __read_32bit_c0_register($19, 0) 871 #define read_c0_watchhi1() __read_32bit_c0_register($19, 1) 872 #define read_c0_watchhi2() __read_32bit_c0_register($19, 2) 873 #define read_c0_watchhi3() __read_32bit_c0_register($19, 3) 874 #define read_c0_watchhi4() __read_32bit_c0_register($19, 4) 875 #define read_c0_watchhi5() __read_32bit_c0_register($19, 5) 876 #define read_c0_watchhi6() __read_32bit_c0_register($19, 6) 877 #define read_c0_watchhi7() __read_32bit_c0_register($19, 7) 878 879 #define write_c0_watchhi0(val) __write_32bit_c0_register($19, 0, val) 880 #define write_c0_watchhi1(val) __write_32bit_c0_register($19, 1, val) 881 #define write_c0_watchhi2(val) __write_32bit_c0_register($19, 2, val) 882 #define write_c0_watchhi3(val) __write_32bit_c0_register($19, 3, val) 883 #define write_c0_watchhi4(val) __write_32bit_c0_register($19, 4, val) 884 #define write_c0_watchhi5(val) __write_32bit_c0_register($19, 5, val) 885 #define write_c0_watchhi6(val) __write_32bit_c0_register($19, 6, val) 886 #define write_c0_watchhi7(val) __write_32bit_c0_register($19, 7, val) 887 888 #define read_c0_xcontext() __read_ulong_c0_register($20, 0) 889 #define write_c0_xcontext(val) __write_ulong_c0_register($20, 0, val) 890 891 #define read_c0_intcontrol() __read_32bit_c0_ctrl_register($20) 892 #define write_c0_intcontrol(val) __write_32bit_c0_ctrl_register($20, val) 893 894 #define read_c0_framemask() __read_32bit_c0_register($21, 0) 895 #define write_c0_framemask(val) __write_32bit_c0_register($21, 0, val) 896 897 /* RM9000 PerfControl performance counter control register */ 898 #define read_c0_perfcontrol() __read_32bit_c0_register($22, 0) 899 #define write_c0_perfcontrol(val) __write_32bit_c0_register($22, 0, val) 900 901 #define read_c0_diag() __read_32bit_c0_register($22, 0) 902 #define write_c0_diag(val) __write_32bit_c0_register($22, 0, val) 903 904 #define read_c0_diag1() __read_32bit_c0_register($22, 1) 905 #define write_c0_diag1(val) __write_32bit_c0_register($22, 1, val) 906 907 #define read_c0_diag2() __read_32bit_c0_register($22, 2) 908 #define write_c0_diag2(val) __write_32bit_c0_register($22, 2, val) 909 910 #define read_c0_diag3() __read_32bit_c0_register($22, 3) 911 #define write_c0_diag3(val) __write_32bit_c0_register($22, 3, val) 912 913 #define read_c0_diag4() __read_32bit_c0_register($22, 4) 914 #define write_c0_diag4(val) __write_32bit_c0_register($22, 4, val) 915 916 #define read_c0_diag5() __read_32bit_c0_register($22, 5) 917 #define write_c0_diag5(val) __write_32bit_c0_register($22, 5, val) 918 919 #define read_c0_debug() __read_32bit_c0_register($23, 0) 920 #define write_c0_debug(val) __write_32bit_c0_register($23, 0, val) 921 922 #define read_c0_depc() __read_ulong_c0_register($24, 0) 923 #define write_c0_depc(val) __write_ulong_c0_register($24, 0, val) 924 925 /* 926 * MIPS32 / MIPS64 performance counters 927 */ 928 #define read_c0_perfctrl0() __read_32bit_c0_register($25, 0) 929 #define write_c0_perfctrl0(val) __write_32bit_c0_register($25, 0, val) 930 #define read_c0_perfcntr0() __read_32bit_c0_register($25, 1) 931 #define write_c0_perfcntr0(val) __write_32bit_c0_register($25, 1, val) 932 #define read_c0_perfctrl1() __read_32bit_c0_register($25, 2) 933 #define write_c0_perfctrl1(val) __write_32bit_c0_register($25, 2, val) 934 #define read_c0_perfcntr1() __read_32bit_c0_register($25, 3) 935 #define write_c0_perfcntr1(val) __write_32bit_c0_register($25, 3, val) 936 #define read_c0_perfctrl2() __read_32bit_c0_register($25, 4) 937 #define write_c0_perfctrl2(val) __write_32bit_c0_register($25, 4, val) 938 #define read_c0_perfcntr2() __read_32bit_c0_register($25, 5) 939 #define write_c0_perfcntr2(val) __write_32bit_c0_register($25, 5, val) 940 #define read_c0_perfctrl3() __read_32bit_c0_register($25, 6) 941 #define write_c0_perfctrl3(val) __write_32bit_c0_register($25, 6, val) 942 #define read_c0_perfcntr3() __read_32bit_c0_register($25, 7) 943 #define write_c0_perfcntr3(val) __write_32bit_c0_register($25, 7, val) 944 945 /* RM9000 PerfCount performance counter register */ 946 #define read_c0_perfcount() __read_64bit_c0_register($25, 0) 947 #define write_c0_perfcount(val) __write_64bit_c0_register($25, 0, val) 948 949 #define read_c0_ecc() __read_32bit_c0_register($26, 0) 950 #define write_c0_ecc(val) __write_32bit_c0_register($26, 0, val) 951 952 #define read_c0_derraddr0() __read_ulong_c0_register($26, 1) 953 #define write_c0_derraddr0(val) __write_ulong_c0_register($26, 1, val) 954 955 #define read_c0_cacheerr() __read_32bit_c0_register($27, 0) 956 957 #define read_c0_derraddr1() __read_ulong_c0_register($27, 1) 958 #define write_c0_derraddr1(val) __write_ulong_c0_register($27, 1, val) 959 960 #define read_c0_taglo() __read_32bit_c0_register($28, 0) 961 #define write_c0_taglo(val) __write_32bit_c0_register($28, 0, val) 962 963 #define read_c0_dtaglo() __read_32bit_c0_register($28, 2) 964 #define write_c0_dtaglo(val) __write_32bit_c0_register($28, 2, val) 965 966 #define read_c0_taghi() __read_32bit_c0_register($29, 0) 967 #define write_c0_taghi(val) __write_32bit_c0_register($29, 0, val) 968 969 #define read_c0_errorepc() __read_ulong_c0_register($30, 0) 970 #define write_c0_errorepc(val) __write_ulong_c0_register($30, 0, val) 971 972 /* MIPSR2 */ 973 #define read_c0_hwrena() __read_32bit_c0_register($7, 0) 974 #define write_c0_hwrena(val) __write_32bit_c0_register($7, 0, val) 975 976 #define read_c0_intctl() __read_32bit_c0_register($12, 1) 977 #define write_c0_intctl(val) __write_32bit_c0_register($12, 1, val) 978 979 #define read_c0_srsctl() __read_32bit_c0_register($12, 2) 980 #define write_c0_srsctl(val) __write_32bit_c0_register($12, 2, val) 981 982 #define read_c0_srsmap() __read_32bit_c0_register($12, 3) 983 #define write_c0_srsmap(val) __write_32bit_c0_register($12, 3, val) 984 985 #define read_c0_ebase() __read_32bit_c0_register($15, 1) 986 #define write_c0_ebase(val) __write_32bit_c0_register($15, 1, val) 987 988 /* 989 * Macros to access the floating point coprocessor control registers 990 */ 991 #define read_32bit_cp1_register(source) \ 992 ({ int __res; \ 993 __asm__ __volatile__( \ 994 ".set\tpush\n\t" \ 995 ".set\treorder\n\t" \ 996 "cfc1\t%0,"STR(source)"\n\t" \ 997 ".set\tpop" \ 998 : "=r" (__res)); \ 999 __res;}) 1000 1001 #define rddsp(mask) \ 1002 ({ \ 1003 unsigned int __res; \ 1004 \ 1005 __asm__ __volatile__( \ 1006 " .set push \n" \ 1007 " .set noat \n" \ 1008 " # rddsp $1, %x1 \n" \ 1009 " .word 0x7c000cb8 | (%x1 << 16) \n" \ 1010 " move %0, $1 \n" \ 1011 " .set pop \n" \ 1012 : "=r" (__res) \ 1013 : "i" (mask)); \ 1014 __res; \ 1015 }) 1016 1017 #define wrdsp(val, mask) \ 1018 do { \ 1019 __asm__ __volatile__( \ 1020 " .set push \n" \ 1021 " .set noat \n" \ 1022 " move $1, %0 \n" \ 1023 " # wrdsp $1, %x1 \n" \ 1024 " .word 0x7c2004f8 | (%x1 << 11) \n" \ 1025 " .set pop \n" \ 1026 : \ 1027 : "r" (val), "i" (mask)); \ 1028 } while (0) 1029 1030 #define mfhi0() \ 1031 ({ \ 1032 unsigned long __treg; \ 1033 \ 1034 __asm__ __volatile__( \ 1035 " .set push \n" \ 1036 " .set noat \n" \ 1037 " # mfhi %0, $ac0 \n" \ 1038 " .word 0x00000810 \n" \ 1039 " move %0, $1 \n" \ 1040 " .set pop \n" \ 1041 : "=r" (__treg)); \ 1042 __treg; \ 1043 }) 1044 1045 #define mfhi1() \ 1046 ({ \ 1047 unsigned long __treg; \ 1048 \ 1049 __asm__ __volatile__( \ 1050 " .set push \n" \ 1051 " .set noat \n" \ 1052 " # mfhi %0, $ac1 \n" \ 1053 " .word 0x00200810 \n" \ 1054 " move %0, $1 \n" \ 1055 " .set pop \n" \ 1056 : "=r" (__treg)); \ 1057 __treg; \ 1058 }) 1059 1060 #define mfhi2() \ 1061 ({ \ 1062 unsigned long __treg; \ 1063 \ 1064 __asm__ __volatile__( \ 1065 " .set push \n" \ 1066 " .set noat \n" \ 1067 " # mfhi %0, $ac2 \n" \ 1068 " .word 0x00400810 \n" \ 1069 " move %0, $1 \n" \ 1070 " .set pop \n" \ 1071 : "=r" (__treg)); \ 1072 __treg; \ 1073 }) 1074 1075 #define mfhi3() \ 1076 ({ \ 1077 unsigned long __treg; \ 1078 \ 1079 __asm__ __volatile__( \ 1080 " .set push \n" \ 1081 " .set noat \n" \ 1082 " # mfhi %0, $ac3 \n" \ 1083 " .word 0x00600810 \n" \ 1084 " move %0, $1 \n" \ 1085 " .set pop \n" \ 1086 : "=r" (__treg)); \ 1087 __treg; \ 1088 }) 1089 1090 #define mflo0() \ 1091 ({ \ 1092 unsigned long __treg; \ 1093 \ 1094 __asm__ __volatile__( \ 1095 " .set push \n" \ 1096 " .set noat \n" \ 1097 " # mflo %0, $ac0 \n" \ 1098 " .word 0x00000812 \n" \ 1099 " move %0, $1 \n" \ 1100 " .set pop \n" \ 1101 : "=r" (__treg)); \ 1102 __treg; \ 1103 }) 1104 1105 #define mflo1() \ 1106 ({ \ 1107 unsigned long __treg; \ 1108 \ 1109 __asm__ __volatile__( \ 1110 " .set push \n" \ 1111 " .set noat \n" \ 1112 " # mflo %0, $ac1 \n" \ 1113 " .word 0x00200812 \n" \ 1114 " move %0, $1 \n" \ 1115 " .set pop \n" \ 1116 : "=r" (__treg)); \ 1117 __treg; \ 1118 }) 1119 1120 #define mflo2() \ 1121 ({ \ 1122 unsigned long __treg; \ 1123 \ 1124 __asm__ __volatile__( \ 1125 " .set push \n" \ 1126 " .set noat \n" \ 1127 " # mflo %0, $ac2 \n" \ 1128 " .word 0x00400812 \n" \ 1129 " move %0, $1 \n" \ 1130 " .set pop \n" \ 1131 : "=r" (__treg)); \ 1132 __treg; \ 1133 }) 1134 1135 #define mflo3() \ 1136 ({ \ 1137 unsigned long __treg; \ 1138 \ 1139 __asm__ __volatile__( \ 1140 " .set push \n" \ 1141 " .set noat \n" \ 1142 " # mflo %0, $ac3 \n" \ 1143 " .word 0x00600812 \n" \ 1144 " move %0, $1 \n" \ 1145 " .set pop \n" \ 1146 : "=r" (__treg)); \ 1147 __treg; \ 1148 }) 1149 1150 #define mthi0(x) \ 1151 do { \ 1152 __asm__ __volatile__( \ 1153 " .set push \n" \ 1154 " .set noat \n" \ 1155 " move $1, %0 \n" \ 1156 " # mthi $1, $ac0 \n" \ 1157 " .word 0x00200011 \n" \ 1158 " .set pop \n" \ 1159 : \ 1160 : "r" (x)); \ 1161 } while (0) 1162 1163 #define mthi1(x) \ 1164 do { \ 1165 __asm__ __volatile__( \ 1166 " .set push \n" \ 1167 " .set noat \n" \ 1168 " move $1, %0 \n" \ 1169 " # mthi $1, $ac1 \n" \ 1170 " .word 0x00200811 \n" \ 1171 " .set pop \n" \ 1172 : \ 1173 : "r" (x)); \ 1174 } while (0) 1175 1176 #define mthi2(x) \ 1177 do { \ 1178 __asm__ __volatile__( \ 1179 " .set push \n" \ 1180 " .set noat \n" \ 1181 " move $1, %0 \n" \ 1182 " # mthi $1, $ac2 \n" \ 1183 " .word 0x00201011 \n" \ 1184 " .set pop \n" \ 1185 : \ 1186 : "r" (x)); \ 1187 } while (0) 1188 1189 #define mthi3(x) \ 1190 do { \ 1191 __asm__ __volatile__( \ 1192 " .set push \n" \ 1193 " .set noat \n" \ 1194 " move $1, %0 \n" \ 1195 " # mthi $1, $ac3 \n" \ 1196 " .word 0x00201811 \n" \ 1197 " .set pop \n" \ 1198 : \ 1199 : "r" (x)); \ 1200 } while (0) 1201 1202 #define mtlo0(x) \ 1203 do { \ 1204 __asm__ __volatile__( \ 1205 " .set push \n" \ 1206 " .set noat \n" \ 1207 " move $1, %0 \n" \ 1208 " # mtlo $1, $ac0 \n" \ 1209 " .word 0x00200013 \n" \ 1210 " .set pop \n" \ 1211 : \ 1212 : "r" (x)); \ 1213 } while (0) 1214 1215 #define mtlo1(x) \ 1216 do { \ 1217 __asm__ __volatile__( \ 1218 " .set push \n" \ 1219 " .set noat \n" \ 1220 " move $1, %0 \n" \ 1221 " # mtlo $1, $ac1 \n" \ 1222 " .word 0x00200813 \n" \ 1223 " .set pop \n" \ 1224 : \ 1225 : "r" (x)); \ 1226 } while (0) 1227 1228 #define mtlo2(x) \ 1229 do { \ 1230 __asm__ __volatile__( \ 1231 " .set push \n" \ 1232 " .set noat \n" \ 1233 " move $1, %0 \n" \ 1234 " # mtlo $1, $ac2 \n" \ 1235 " .word 0x00201013 \n" \ 1236 " .set pop \n" \ 1237 : \ 1238 : "r" (x)); \ 1239 } while (0) 1240 1241 #define mtlo3(x) \ 1242 do { \ 1243 __asm__ __volatile__( \ 1244 " .set push \n" \ 1245 " .set noat \n" \ 1246 " move $1, %0 \n" \ 1247 " # mtlo $1, $ac3 \n" \ 1248 " .word 0x00201813 \n" \ 1249 " .set pop \n" \ 1250 : \ 1251 : "r" (x)); \ 1252 } while (0) 1253 1254 /* 1255 * TLB operations. 1256 * 1257 * It is responsibility of the caller to take care of any TLB hazards. 1258 */ 1259 static inline void tlb_probe(void) 1260 { 1261 __asm__ __volatile__( 1262 ".set noreorder\n\t" 1263 "tlbp\n\t" 1264 ".set reorder"); 1265 } 1266 1267 static inline void tlb_read(void) 1268 { 1269 #if MIPS34K_MISSED_ITLB_WAR 1270 int res = 0; 1271 1272 __asm__ __volatile__( 1273 " .set push \n" 1274 " .set noreorder \n" 1275 " .set noat \n" 1276 " .set mips32r2 \n" 1277 " .word 0x41610001 # dvpe $1 \n" 1278 " move %0, $1 \n" 1279 " ehb \n" 1280 " .set pop \n" 1281 : "=r" (res)); 1282 1283 instruction_hazard(); 1284 #endif 1285 1286 __asm__ __volatile__( 1287 ".set noreorder\n\t" 1288 "tlbr\n\t" 1289 ".set reorder"); 1290 1291 #if MIPS34K_MISSED_ITLB_WAR 1292 if ((res & _ULCAST_(1))) 1293 __asm__ __volatile__( 1294 " .set push \n" 1295 " .set noreorder \n" 1296 " .set noat \n" 1297 " .set mips32r2 \n" 1298 " .word 0x41600021 # evpe \n" 1299 " ehb \n" 1300 " .set pop \n"); 1301 #endif 1302 } 1303 1304 static inline void tlb_write_indexed(void) 1305 { 1306 __asm__ __volatile__( 1307 ".set noreorder\n\t" 1308 "tlbwi\n\t" 1309 ".set reorder"); 1310 } 1311 1312 static inline void tlb_write_random(void) 1313 { 1314 __asm__ __volatile__( 1315 ".set noreorder\n\t" 1316 "tlbwr\n\t" 1317 ".set reorder"); 1318 } 1319 1320 /* 1321 * Manipulate bits in a c0 register. 1322 */ 1323 #define __BUILD_SET_C0(name) \ 1324 static inline unsigned int \ 1325 set_c0_##name(unsigned int set) \ 1326 { \ 1327 unsigned int res; \ 1328 \ 1329 res = read_c0_##name(); \ 1330 res |= set; \ 1331 write_c0_##name(res); \ 1332 \ 1333 return res; \ 1334 } \ 1335 \ 1336 static inline unsigned int \ 1337 clear_c0_##name(unsigned int clear) \ 1338 { \ 1339 unsigned int res; \ 1340 \ 1341 res = read_c0_##name(); \ 1342 res &= ~clear; \ 1343 write_c0_##name(res); \ 1344 \ 1345 return res; \ 1346 } \ 1347 \ 1348 static inline unsigned int \ 1349 change_c0_##name(unsigned int change, unsigned int new) \ 1350 { \ 1351 unsigned int res; \ 1352 \ 1353 res = read_c0_##name(); \ 1354 res &= ~change; \ 1355 res |= (new & change); \ 1356 write_c0_##name(res); \ 1357 \ 1358 return res; \ 1359 } 1360 1361 __BUILD_SET_C0(status) 1362 __BUILD_SET_C0(cause) 1363 __BUILD_SET_C0(config) 1364 __BUILD_SET_C0(intcontrol) 1365 __BUILD_SET_C0(intctl) 1366 __BUILD_SET_C0(srsmap) 1367 1368 #endif /* !__ASSEMBLY__ */ 1369 1370 #endif /* _ASM_MIPSREGS_H */ 1371