arch/mips/include/asm/mipsregs.h

   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 #define _U64CAST_
  38 #else
  39 #define _ULCAST_ (unsigned long)
  40 #define _U64CAST_ (u64)
  41 #endif
  42
  43 /*
  44  * Coprocessor 0 register names
  45  */
  46 #define CP0_INDEX $0
  47 #define CP0_RANDOM $1
  48 #define CP0_ENTRYLO0 $2
  49 #define CP0_ENTRYLO1 $3
  50 #define CP0_CONF $3
  51 #define CP0_GLOBALNUMBER $3, 1
  52 #define CP0_CONTEXT $4
  53 #define CP0_PAGEMASK $5
  54 #define CP0_SEGCTL0 $5, 2
  55 #define CP0_SEGCTL1 $5, 3
  56 #define CP0_SEGCTL2 $5, 4
  57 #define CP0_WIRED $6
  58 #define CP0_INFO $7
  59 #define CP0_HWRENA $7
  60 #define CP0_BADVADDR $8
  61 #define CP0_BADINSTR $8, 1
  62 #define CP0_COUNT $9
  63 #define CP0_ENTRYHI $10
  64 #define CP0_GUESTCTL1 $10, 4
  65 #define CP0_GUESTCTL2 $10, 5
  66 #define CP0_GUESTCTL3 $10, 6
  67 #define CP0_COMPARE $11
  68 #define CP0_GUESTCTL0EXT $11, 4
  69 #define CP0_STATUS $12
  70 #define CP0_GUESTCTL0 $12, 6
  71 #define CP0_GTOFFSET $12, 7
  72 #define CP0_CAUSE $13
  73 #define CP0_EPC $14
  74 #define CP0_PRID $15
  75 #define CP0_EBASE $15, 1
  76 #define CP0_CMGCRBASE $15, 3
  77 #define CP0_CONFIG $16
  78 #define CP0_CONFIG3 $16, 3
  79 #define CP0_CONFIG5 $16, 5
  80 #define CP0_LLADDR $17
  81 #define CP0_WATCHLO $18
  82 #define CP0_WATCHHI $19
  83 #define CP0_XCONTEXT $20
  84 #define CP0_FRAMEMASK $21
  85 #define CP0_DIAGNOSTIC $22
  86 #define CP0_DEBUG $23
  87 #define CP0_DEPC $24
  88 #define CP0_PERFORMANCE $25
  89 #define CP0_ECC $26
  90 #define CP0_CACHEERR $27
  91 #define CP0_TAGLO $28
  92 #define CP0_TAGHI $29
  93 #define CP0_ERROREPC $30
  94 #define CP0_DESAVE $31
  95
  96 /*
  97  * R4640/R4650 cp0 register names.  These registers are listed
  98  * here only for completeness; without MMU these CPUs are not useable
  99  * by Linux.  A future ELKS port might take make Linux run on them
 100  * though ...
 101  */
 102 #define CP0_IBASE $0
 103 #define CP0_IBOUND $1
 104 #define CP0_DBASE $2
 105 #define CP0_DBOUND $3
 106 #define CP0_CALG $17
 107 #define CP0_IWATCH $18
 108 #define CP0_DWATCH $19
 109
 110 /*
 111  * Coprocessor 0 Set 1 register names
 112  */
 113 #define CP0_S1_DERRADDR0  $26
 114 #define CP0_S1_DERRADDR1  $27
 115 #define CP0_S1_INTCONTROL $20
 116
 117 /*
 118  * Coprocessor 0 Set 2 register names
 119  */
 120 #define CP0_S2_SRSCTL     $12   /* MIPSR2 */
 121
 122 /*
 123  * Coprocessor 0 Set 3 register names
 124  */
 125 #define CP0_S3_SRSMAP     $12   /* MIPSR2 */
 126
 127 /*
 128  *  TX39 Series
 129  */
 130 #define CP0_TX39_CACHE  $7
 131
 132
 133 /* Generic EntryLo bit definitions */
 134 #define ENTRYLO_G               (_ULCAST_(1) << 0)
 135 #define ENTRYLO_V               (_ULCAST_(1) << 1)
 136 #define ENTRYLO_D               (_ULCAST_(1) << 2)
 137 #define ENTRYLO_C_SHIFT         3
 138 #define ENTRYLO_C               (_ULCAST_(7) << ENTRYLO_C_SHIFT)
 139
 140 /* R3000 EntryLo bit definitions */
 141 #define R3K_ENTRYLO_G           (_ULCAST_(1) << 8)
 142 #define R3K_ENTRYLO_V           (_ULCAST_(1) << 9)
 143 #define R3K_ENTRYLO_D           (_ULCAST_(1) << 10)
 144 #define R3K_ENTRYLO_N           (_ULCAST_(1) << 11)
 145
 146 /* MIPS32/64 EntryLo bit definitions */
 147 #define MIPS_ENTRYLO_PFN_SHIFT  6
 148 #define MIPS_ENTRYLO_XI         (_ULCAST_(1) << (BITS_PER_LONG - 2))
 149 #define MIPS_ENTRYLO_RI         (_ULCAST_(1) << (BITS_PER_LONG - 1))
 150
 151 /*
 152  * MIPSr6+ GlobalNumber register definitions
 153  */
 154 #define MIPS_GLOBALNUMBER_VP_SHF        0
 155 #define MIPS_GLOBALNUMBER_VP            (_ULCAST_(0xff) << MIPS_GLOBALNUMBER_VP_SHF)
 156 #define MIPS_GLOBALNUMBER_CORE_SHF      8
 157 #define MIPS_GLOBALNUMBER_CORE          (_ULCAST_(0xff) << MIPS_GLOBALNUMBER_CORE_SHF)
 158 #define MIPS_GLOBALNUMBER_CLUSTER_SHF   16
 159 #define MIPS_GLOBALNUMBER_CLUSTER       (_ULCAST_(0xf) << MIPS_GLOBALNUMBER_CLUSTER_SHF)
 160
 161 /*
 162  * Values for PageMask register
 163  */
 164 #ifdef CONFIG_CPU_VR41XX
 165
 166 /* Why doesn't stupidity hurt ... */
 167
 168 #define PM_1K           0x00000000
 169 #define PM_4K           0x00001800
 170 #define PM_16K          0x00007800
 171 #define PM_64K          0x0001f800
 172 #define PM_256K         0x0007f800
 173
 174 #else
 175
 176 #define PM_4K           0x00000000
 177 #define PM_8K           0x00002000
 178 #define PM_16K          0x00006000
 179 #define PM_32K          0x0000e000
 180 #define PM_64K          0x0001e000
 181 #define PM_128K         0x0003e000
 182 #define PM_256K         0x0007e000
 183 #define PM_512K         0x000fe000
 184 #define PM_1M           0x001fe000
 185 #define PM_2M           0x003fe000
 186 #define PM_4M           0x007fe000
 187 #define PM_8M           0x00ffe000
 188 #define PM_16M          0x01ffe000
 189 #define PM_32M          0x03ffe000
 190 #define PM_64M          0x07ffe000
 191 #define PM_256M         0x1fffe000
 192 #define PM_1G           0x7fffe000
 193
 194 #endif
 195
 196 /*
 197  * Default page size for a given kernel configuration
 198  */
 199 #ifdef CONFIG_PAGE_SIZE_4KB
 200 #define PM_DEFAULT_MASK PM_4K
 201 #elif defined(CONFIG_PAGE_SIZE_8KB)
 202 #define PM_DEFAULT_MASK PM_8K
 203 #elif defined(CONFIG_PAGE_SIZE_16KB)
 204 #define PM_DEFAULT_MASK PM_16K
 205 #elif defined(CONFIG_PAGE_SIZE_32KB)
 206 #define PM_DEFAULT_MASK PM_32K
 207 #elif defined(CONFIG_PAGE_SIZE_64KB)
 208 #define PM_DEFAULT_MASK PM_64K
 209 #else
 210 #error Bad page size configuration!
 211 #endif
 212
 213 /*
 214  * Default huge tlb size for a given kernel configuration
 215  */
 216 #ifdef CONFIG_PAGE_SIZE_4KB
 217 #define PM_HUGE_MASK    PM_1M
 218 #elif defined(CONFIG_PAGE_SIZE_8KB)
 219 #define PM_HUGE_MASK    PM_4M
 220 #elif defined(CONFIG_PAGE_SIZE_16KB)
 221 #define PM_HUGE_MASK    PM_16M
 222 #elif defined(CONFIG_PAGE_SIZE_32KB)
 223 #define PM_HUGE_MASK    PM_64M
 224 #elif defined(CONFIG_PAGE_SIZE_64KB)
 225 #define PM_HUGE_MASK    PM_256M
 226 #elif defined(CONFIG_MIPS_HUGE_TLB_SUPPORT)
 227 #error Bad page size configuration for hugetlbfs!
 228 #endif
 229
 230 /*
 231  * Wired register bits
 232  */
 233 #define MIPSR6_WIRED_LIMIT_SHIFT 16
 234 #define MIPSR6_WIRED_LIMIT      (_ULCAST_(0xffff) << MIPSR6_WIRED_LIMIT_SHIFT)
 235 #define MIPSR6_WIRED_WIRED_SHIFT 0
 236 #define MIPSR6_WIRED_WIRED      (_ULCAST_(0xffff) << MIPSR6_WIRED_WIRED_SHIFT)
 237
 238 /*
 239  * Values used for computation of new tlb entries
 240  */
 241 #define PL_4K           12
 242 #define PL_16K          14
 243 #define PL_64K          16
 244 #define PL_256K         18
 245 #define PL_1M           20
 246 #define PL_4M           22
 247 #define PL_16M          24
 248 #define PL_64M          26
 249 #define PL_256M         28
 250
 251 /*
 252  * PageGrain bits
 253  */
 254 #define PG_RIE          (_ULCAST_(1) <<  31)
 255 #define PG_XIE          (_ULCAST_(1) <<  30)
 256 #define PG_ELPA         (_ULCAST_(1) <<  29)
 257 #define PG_ESP          (_ULCAST_(1) <<  28)
 258 #define PG_IEC          (_ULCAST_(1) <<  27)
 259
 260 /* MIPS32/64 EntryHI bit definitions */
 261 #define MIPS_ENTRYHI_EHINV      (_ULCAST_(1) << 10)
 262 #define MIPS_ENTRYHI_ASIDX      (_ULCAST_(0x3) << 8)
 263 #define MIPS_ENTRYHI_ASID       (_ULCAST_(0xff) << 0)
 264
 265 /*
 266  * R4x00 interrupt enable / cause bits
 267  */
 268 #define IE_SW0          (_ULCAST_(1) <<  8)
 269 #define IE_SW1          (_ULCAST_(1) <<  9)
 270 #define IE_IRQ0         (_ULCAST_(1) << 10)
 271 #define IE_IRQ1         (_ULCAST_(1) << 11)
 272 #define IE_IRQ2         (_ULCAST_(1) << 12)
 273 #define IE_IRQ3         (_ULCAST_(1) << 13)
 274 #define IE_IRQ4         (_ULCAST_(1) << 14)
 275 #define IE_IRQ5         (_ULCAST_(1) << 15)
 276
 277 /*
 278  * R4x00 interrupt cause bits
 279  */
 280 #define C_SW0           (_ULCAST_(1) <<  8)
 281 #define C_SW1           (_ULCAST_(1) <<  9)
 282 #define C_IRQ0          (_ULCAST_(1) << 10)
 283 #define C_IRQ1          (_ULCAST_(1) << 11)
 284 #define C_IRQ2          (_ULCAST_(1) << 12)
 285 #define C_IRQ3          (_ULCAST_(1) << 13)
 286 #define C_IRQ4          (_ULCAST_(1) << 14)
 287 #define C_IRQ5          (_ULCAST_(1) << 15)
 288
 289 /*
 290  * Bitfields in the R4xx0 cp0 status register
 291  */
 292 #define ST0_IE                  0x00000001
 293 #define ST0_EXL                 0x00000002
 294 #define ST0_ERL                 0x00000004
 295 #define ST0_KSU                 0x00000018
 296 #  define KSU_USER              0x00000010
 297 #  define KSU_SUPERVISOR        0x00000008
 298 #  define KSU_KERNEL            0x00000000
 299 #define ST0_UX                  0x00000020
 300 #define ST0_SX                  0x00000040
 301 #define ST0_KX                  0x00000080
 302 #define ST0_DE                  0x00010000
 303 #define ST0_CE                  0x00020000
 304
 305 /*
 306  * Setting c0_status.co enables Hit_Writeback and Hit_Writeback_Invalidate
 307  * cacheops in userspace.  This bit exists only on RM7000 and RM9000
 308  * processors.
 309  */
 310 #define ST0_CO                  0x08000000
 311
 312 /*
 313  * Bitfields in the R[23]000 cp0 status register.
 314  */
 315 #define ST0_IEC                 0x00000001
 316 #define ST0_KUC                 0x00000002
 317 #define ST0_IEP                 0x00000004
 318 #define ST0_KUP                 0x00000008
 319 #define ST0_IEO                 0x00000010
 320 #define ST0_KUO                 0x00000020
 321 /* bits 6 & 7 are reserved on R[23]000 */
 322 #define ST0_ISC                 0x00010000
 323 #define ST0_SWC                 0x00020000
 324 #define ST0_CM                  0x00080000
 325
 326 /*
 327  * Bits specific to the R4640/R4650
 328  */
 329 #define ST0_UM                  (_ULCAST_(1) <<  4)
 330 #define ST0_IL                  (_ULCAST_(1) << 23)
 331 #define ST0_DL                  (_ULCAST_(1) << 24)
 332
 333 /*
 334  * Enable the MIPS MDMX and DSP ASEs
 335  */
 336 #define ST0_MX                  0x01000000
 337
 338 /*
 339  * Status register bits available in all MIPS CPUs.
 340  */
 341 #define ST0_IM                  0x0000ff00
 342 #define  STATUSB_IP0            8
 343 #define  STATUSF_IP0            (_ULCAST_(1) <<  8)
 344 #define  STATUSB_IP1            9
 345 #define  STATUSF_IP1            (_ULCAST_(1) <<  9)
 346 #define  STATUSB_IP2            10
 347 #define  STATUSF_IP2            (_ULCAST_(1) << 10)
 348 #define  STATUSB_IP3            11
 349 #define  STATUSF_IP3            (_ULCAST_(1) << 11)
 350 #define  STATUSB_IP4            12
 351 #define  STATUSF_IP4            (_ULCAST_(1) << 12)
 352 #define  STATUSB_IP5            13
 353 #define  STATUSF_IP5            (_ULCAST_(1) << 13)
 354 #define  STATUSB_IP6            14
 355 #define  STATUSF_IP6            (_ULCAST_(1) << 14)
 356 #define  STATUSB_IP7            15
 357 #define  STATUSF_IP7            (_ULCAST_(1) << 15)
 358 #define  STATUSB_IP8            0
 359 #define  STATUSF_IP8            (_ULCAST_(1) <<  0)
 360 #define  STATUSB_IP9            1
 361 #define  STATUSF_IP9            (_ULCAST_(1) <<  1)
 362 #define  STATUSB_IP10           2
 363 #define  STATUSF_IP10           (_ULCAST_(1) <<  2)
 364 #define  STATUSB_IP11           3
 365 #define  STATUSF_IP11           (_ULCAST_(1) <<  3)
 366 #define  STATUSB_IP12           4
 367 #define  STATUSF_IP12           (_ULCAST_(1) <<  4)
 368 #define  STATUSB_IP13           5
 369 #define  STATUSF_IP13           (_ULCAST_(1) <<  5)
 370 #define  STATUSB_IP14           6
 371 #define  STATUSF_IP14           (_ULCAST_(1) <<  6)
 372 #define  STATUSB_IP15           7
 373 #define  STATUSF_IP15           (_ULCAST_(1) <<  7)
 374 #define ST0_CH                  0x00040000
 375 #define ST0_NMI                 0x00080000
 376 #define ST0_SR                  0x00100000
 377 #define ST0_TS                  0x00200000
 378 #define ST0_BEV                 0x00400000
 379 #define ST0_RE                  0x02000000
 380 #define ST0_FR                  0x04000000
 381 #define ST0_CU                  0xf0000000
 382 #define ST0_CU0                 0x10000000
 383 #define ST0_CU1                 0x20000000
 384 #define ST0_CU2                 0x40000000
 385 #define ST0_CU3                 0x80000000
 386 #define ST0_XX                  0x80000000      /* MIPS IV naming */
 387
 388 /*
 389  * Bitfields and bit numbers in the coprocessor 0 IntCtl register. (MIPSR2)
 390  */
 391 #define INTCTLB_IPFDC           23
 392 #define INTCTLF_IPFDC           (_ULCAST_(7) << INTCTLB_IPFDC)
 393 #define INTCTLB_IPPCI           26
 394 #define INTCTLF_IPPCI           (_ULCAST_(7) << INTCTLB_IPPCI)
 395 #define INTCTLB_IPTI            29
 396 #define INTCTLF_IPTI            (_ULCAST_(7) << INTCTLB_IPTI)
 397
 398 /*
 399  * Bitfields and bit numbers in the coprocessor 0 cause register.
 400  *
 401  * Refer to your MIPS R4xx0 manual, chapter 5 for explanation.
 402  */
 403 #define CAUSEB_EXCCODE          2
 404 #define CAUSEF_EXCCODE          (_ULCAST_(31)  <<  2)
 405 #define CAUSEB_IP               8
 406 #define CAUSEF_IP               (_ULCAST_(255) <<  8)
 407 #define  CAUSEB_IP0             8
 408 #define  CAUSEF_IP0             (_ULCAST_(1)   <<  8)
 409 #define  CAUSEB_IP1             9
 410 #define  CAUSEF_IP1             (_ULCAST_(1)   <<  9)
 411 #define  CAUSEB_IP2             10
 412 #define  CAUSEF_IP2             (_ULCAST_(1)   << 10)
 413 #define  CAUSEB_IP3             11
 414 #define  CAUSEF_IP3             (_ULCAST_(1)   << 11)
 415 #define  CAUSEB_IP4             12
 416 #define  CAUSEF_IP4             (_ULCAST_(1)   << 12)
 417 #define  CAUSEB_IP5             13
 418 #define  CAUSEF_IP5             (_ULCAST_(1)   << 13)
 419 #define  CAUSEB_IP6             14
 420 #define  CAUSEF_IP6             (_ULCAST_(1)   << 14)
 421 #define  CAUSEB_IP7             15
 422 #define  CAUSEF_IP7             (_ULCAST_(1)   << 15)
 423 #define CAUSEB_FDCI             21
 424 #define CAUSEF_FDCI             (_ULCAST_(1)   << 21)
 425 #define CAUSEB_WP               22
 426 #define CAUSEF_WP               (_ULCAST_(1)   << 22)
 427 #define CAUSEB_IV               23
 428 #define CAUSEF_IV               (_ULCAST_(1)   << 23)
 429 #define CAUSEB_PCI              26
 430 #define CAUSEF_PCI              (_ULCAST_(1)   << 26)
 431 #define CAUSEB_DC               27
 432 #define CAUSEF_DC               (_ULCAST_(1)   << 27)
 433 #define CAUSEB_CE               28
 434 #define CAUSEF_CE               (_ULCAST_(3)   << 28)
 435 #define CAUSEB_TI               30
 436 #define CAUSEF_TI               (_ULCAST_(1)   << 30)
 437 #define CAUSEB_BD               31
 438 #define CAUSEF_BD               (_ULCAST_(1)   << 31)
 439
 440 /*
 441  * Cause.ExcCode trap codes.
 442  */
 443 #define EXCCODE_INT             0       /* Interrupt pending */
 444 #define EXCCODE_MOD             1       /* TLB modified fault */
 445 #define EXCCODE_TLBL            2       /* TLB miss on load or ifetch */
 446 #define EXCCODE_TLBS            3       /* TLB miss on a store */
 447 #define EXCCODE_ADEL            4       /* Address error on a load or ifetch */
 448 #define EXCCODE_ADES            5       /* Address error on a store */
 449 #define EXCCODE_IBE             6       /* Bus error on an ifetch */
 450 #define EXCCODE_DBE             7       /* Bus error on a load or store */
 451 #define EXCCODE_SYS             8       /* System call */
 452 #define EXCCODE_BP              9       /* Breakpoint */
 453 #define EXCCODE_RI              10      /* Reserved instruction exception */
 454 #define EXCCODE_CPU             11      /* Coprocessor unusable */
 455 #define EXCCODE_OV              12      /* Arithmetic overflow */
 456 #define EXCCODE_TR              13      /* Trap instruction */
 457 #define EXCCODE_MSAFPE          14      /* MSA floating point exception */
 458 #define EXCCODE_FPE             15      /* Floating point exception */
 459 #define EXCCODE_TLBRI           19      /* TLB Read-Inhibit exception */
 460 #define EXCCODE_TLBXI           20      /* TLB Execution-Inhibit exception */
 461 #define EXCCODE_MSADIS          21      /* MSA disabled exception */
 462 #define EXCCODE_MDMX            22      /* MDMX unusable exception */
 463 #define EXCCODE_WATCH           23      /* Watch address reference */
 464 #define EXCCODE_MCHECK          24      /* Machine check */
 465 #define EXCCODE_THREAD          25      /* Thread exceptions (MT) */
 466 #define EXCCODE_DSPDIS          26      /* DSP disabled exception */
 467 #define EXCCODE_GE              27      /* Virtualized guest exception (VZ) */
 468
 469 /* Implementation specific trap codes used by MIPS cores */
 470 #define MIPS_EXCCODE_TLBPAR     16      /* TLB parity error exception */
 471
 472 /*
 473  * Bits in the coprocessor 0 config register.
 474  */
 475 /* Generic bits.  */
 476 #define CONF_CM_CACHABLE_NO_WA          0
 477 #define CONF_CM_CACHABLE_WA             1
 478 #define CONF_CM_UNCACHED                2
 479 #define CONF_CM_CACHABLE_NONCOHERENT    3
 480 #define CONF_CM_CACHABLE_CE             4
 481 #define CONF_CM_CACHABLE_COW            5
 482 #define CONF_CM_CACHABLE_CUW            6
 483 #define CONF_CM_CACHABLE_ACCELERATED    7
 484 #define CONF_CM_CMASK                   7
 485 #define CONF_BE                 (_ULCAST_(1) << 15)
 486
 487 /* Bits common to various processors.  */
 488 #define CONF_CU                 (_ULCAST_(1) <<  3)
 489 #define CONF_DB                 (_ULCAST_(1) <<  4)
 490 #define CONF_IB                 (_ULCAST_(1) <<  5)
 491 #define CONF_DC                 (_ULCAST_(7) <<  6)
 492 #define CONF_IC                 (_ULCAST_(7) <<  9)
 493 #define CONF_EB                 (_ULCAST_(1) << 13)
 494 #define CONF_EM                 (_ULCAST_(1) << 14)
 495 #define CONF_SM                 (_ULCAST_(1) << 16)
 496 #define CONF_SC                 (_ULCAST_(1) << 17)
 497 #define CONF_EW                 (_ULCAST_(3) << 18)
 498 #define CONF_EP                 (_ULCAST_(15)<< 24)
 499 #define CONF_EC                 (_ULCAST_(7) << 28)
 500 #define CONF_CM                 (_ULCAST_(1) << 31)
 501
 502 /* Bits specific to the R4xx0.  */
 503 #define R4K_CONF_SW             (_ULCAST_(1) << 20)
 504 #define R4K_CONF_SS             (_ULCAST_(1) << 21)
 505 #define R4K_CONF_SB             (_ULCAST_(3) << 22)
 506
 507 /* Bits specific to the R5000.  */
 508 #define R5K_CONF_SE             (_ULCAST_(1) << 12)
 509 #define R5K_CONF_SS             (_ULCAST_(3) << 20)
 510
 511 /* Bits specific to the RM7000.  */
 512 #define RM7K_CONF_SE            (_ULCAST_(1) <<  3)
 513 #define RM7K_CONF_TE            (_ULCAST_(1) << 12)
 514 #define RM7K_CONF_CLK           (_ULCAST_(1) << 16)
 515 #define RM7K_CONF_TC            (_ULCAST_(1) << 17)
 516 #define RM7K_CONF_SI            (_ULCAST_(3) << 20)
 517 #define RM7K_CONF_SC            (_ULCAST_(1) << 31)
 518
 519 /* Bits specific to the R10000.  */
 520 #define R10K_CONF_DN            (_ULCAST_(3) <<  3)
 521 #define R10K_CONF_CT            (_ULCAST_(1) <<  5)
 522 #define R10K_CONF_PE            (_ULCAST_(1) <<  6)
 523 #define R10K_CONF_PM            (_ULCAST_(3) <<  7)
 524 #define R10K_CONF_EC            (_ULCAST_(15)<<  9)
 525 #define R10K_CONF_SB            (_ULCAST_(1) << 13)
 526 #define R10K_CONF_SK            (_ULCAST_(1) << 14)
 527 #define R10K_CONF_SS            (_ULCAST_(7) << 16)
 528 #define R10K_CONF_SC            (_ULCAST_(7) << 19)
 529 #define R10K_CONF_DC            (_ULCAST_(7) << 26)
 530 #define R10K_CONF_IC            (_ULCAST_(7) << 29)
 531
 532 /* Bits specific to the VR41xx.  */
 533 #define VR41_CONF_CS            (_ULCAST_(1) << 12)
 534 #define VR41_CONF_P4K           (_ULCAST_(1) << 13)
 535 #define VR41_CONF_BP            (_ULCAST_(1) << 16)
 536 #define VR41_CONF_M16           (_ULCAST_(1) << 20)
 537 #define VR41_CONF_AD            (_ULCAST_(1) << 23)
 538
 539 /* Bits specific to the R30xx.  */
 540 #define R30XX_CONF_FDM          (_ULCAST_(1) << 19)
 541 #define R30XX_CONF_REV          (_ULCAST_(1) << 22)
 542 #define R30XX_CONF_AC           (_ULCAST_(1) << 23)
 543 #define R30XX_CONF_RF           (_ULCAST_(1) << 24)
 544 #define R30XX_CONF_HALT         (_ULCAST_(1) << 25)
 545 #define R30XX_CONF_FPINT        (_ULCAST_(7) << 26)
 546 #define R30XX_CONF_DBR          (_ULCAST_(1) << 29)
 547 #define R30XX_CONF_SB           (_ULCAST_(1) << 30)
 548 #define R30XX_CONF_LOCK         (_ULCAST_(1) << 31)
 549
 550 /* Bits specific to the TX49.  */
 551 #define TX49_CONF_DC            (_ULCAST_(1) << 16)
 552 #define TX49_CONF_IC            (_ULCAST_(1) << 17)  /* conflict with CONF_SC */
 553 #define TX49_CONF_HALT          (_ULCAST_(1) << 18)
 554 #define TX49_CONF_CWFON         (_ULCAST_(1) << 27)
 555
 556 /* Bits specific to the MIPS32/64 PRA.  */
 557 #define MIPS_CONF_VI            (_ULCAST_(1) <<  3)
 558 #define MIPS_CONF_MT            (_ULCAST_(7) <<  7)
 559 #define MIPS_CONF_MT_TLB        (_ULCAST_(1) <<  7)
 560 #define MIPS_CONF_MT_FTLB       (_ULCAST_(4) <<  7)
 561 #define MIPS_CONF_AR            (_ULCAST_(7) << 10)
 562 #define MIPS_CONF_AT            (_ULCAST_(3) << 13)
 563 #define MIPS_CONF_M             (_ULCAST_(1) << 31)
 564
 565 /*
 566  * Bits in the MIPS32/64 PRA coprocessor 0 config registers 1 and above.
 567  */
 568 #define MIPS_CONF1_FP           (_ULCAST_(1) <<  0)
 569 #define MIPS_CONF1_EP           (_ULCAST_(1) <<  1)
 570 #define MIPS_CONF1_CA           (_ULCAST_(1) <<  2)
 571 #define MIPS_CONF1_WR           (_ULCAST_(1) <<  3)
 572 #define MIPS_CONF1_PC           (_ULCAST_(1) <<  4)
 573 #define MIPS_CONF1_MD           (_ULCAST_(1) <<  5)
 574 #define MIPS_CONF1_C2           (_ULCAST_(1) <<  6)
 575 #define MIPS_CONF1_DA_SHF       7
 576 #define MIPS_CONF1_DA_SZ        3
 577 #define MIPS_CONF1_DA           (_ULCAST_(7) <<  7)
 578 #define MIPS_CONF1_DL_SHF       10
 579 #define MIPS_CONF1_DL_SZ        3
 580 #define MIPS_CONF1_DL           (_ULCAST_(7) << 10)
 581 #define MIPS_CONF1_DS_SHF       13
 582 #define MIPS_CONF1_DS_SZ        3
 583 #define MIPS_CONF1_DS           (_ULCAST_(7) << 13)
 584 #define MIPS_CONF1_IA_SHF       16
 585 #define MIPS_CONF1_IA_SZ        3
 586 #define MIPS_CONF1_IA           (_ULCAST_(7) << 16)
 587 #define MIPS_CONF1_IL_SHF       19
 588 #define MIPS_CONF1_IL_SZ        3
 589 #define MIPS_CONF1_IL           (_ULCAST_(7) << 19)
 590 #define MIPS_CONF1_IS_SHF       22
 591 #define MIPS_CONF1_IS_SZ        3
 592 #define MIPS_CONF1_IS           (_ULCAST_(7) << 22)
 593 #define MIPS_CONF1_TLBS_SHIFT   (25)
 594 #define MIPS_CONF1_TLBS_SIZE    (6)
 595 #define MIPS_CONF1_TLBS         (_ULCAST_(63) << MIPS_CONF1_TLBS_SHIFT)
 596
 597 #define MIPS_CONF2_SA           (_ULCAST_(15)<<  0)
 598 #define MIPS_CONF2_SL           (_ULCAST_(15)<<  4)
 599 #define MIPS_CONF2_SS           (_ULCAST_(15)<<  8)
 600 #define MIPS_CONF2_SU           (_ULCAST_(15)<< 12)
 601 #define MIPS_CONF2_TA           (_ULCAST_(15)<< 16)
 602 #define MIPS_CONF2_TL           (_ULCAST_(15)<< 20)
 603 #define MIPS_CONF2_TS           (_ULCAST_(15)<< 24)
 604 #define MIPS_CONF2_TU           (_ULCAST_(7) << 28)
 605
 606 #define MIPS_CONF3_TL           (_ULCAST_(1) <<  0)
 607 #define MIPS_CONF3_SM           (_ULCAST_(1) <<  1)
 608 #define MIPS_CONF3_MT           (_ULCAST_(1) <<  2)
 609 #define MIPS_CONF3_CDMM         (_ULCAST_(1) <<  3)
 610 #define MIPS_CONF3_SP           (_ULCAST_(1) <<  4)
 611 #define MIPS_CONF3_VINT         (_ULCAST_(1) <<  5)
 612 #define MIPS_CONF3_VEIC         (_ULCAST_(1) <<  6)
 613 #define MIPS_CONF3_LPA          (_ULCAST_(1) <<  7)
 614 #define MIPS_CONF3_ITL          (_ULCAST_(1) <<  8)
 615 #define MIPS_CONF3_CTXTC        (_ULCAST_(1) <<  9)
 616 #define MIPS_CONF3_DSP          (_ULCAST_(1) << 10)
 617 #define MIPS_CONF3_DSP2P        (_ULCAST_(1) << 11)
 618 #define MIPS_CONF3_RXI          (_ULCAST_(1) << 12)
 619 #define MIPS_CONF3_ULRI         (_ULCAST_(1) << 13)
 620 #define MIPS_CONF3_ISA          (_ULCAST_(3) << 14)
 621 #define MIPS_CONF3_ISA_OE       (_ULCAST_(1) << 16)
 622 #define MIPS_CONF3_MCU          (_ULCAST_(1) << 17)
 623 #define MIPS_CONF3_MMAR         (_ULCAST_(7) << 18)
 624 #define MIPS_CONF3_IPLW         (_ULCAST_(3) << 21)
 625 #define MIPS_CONF3_VZ           (_ULCAST_(1) << 23)
 626 #define MIPS_CONF3_PW           (_ULCAST_(1) << 24)
 627 #define MIPS_CONF3_SC           (_ULCAST_(1) << 25)
 628 #define MIPS_CONF3_BI           (_ULCAST_(1) << 26)
 629 #define MIPS_CONF3_BP           (_ULCAST_(1) << 27)
 630 #define MIPS_CONF3_MSA          (_ULCAST_(1) << 28)
 631 #define MIPS_CONF3_CMGCR        (_ULCAST_(1) << 29)
 632 #define MIPS_CONF3_BPG          (_ULCAST_(1) << 30)
 633
 634 #define MIPS_CONF4_MMUSIZEEXT_SHIFT     (0)
 635 #define MIPS_CONF4_MMUSIZEEXT   (_ULCAST_(255) << 0)
 636 #define MIPS_CONF4_FTLBSETS_SHIFT       (0)
 637 #define MIPS_CONF4_FTLBSETS     (_ULCAST_(15) << MIPS_CONF4_FTLBSETS_SHIFT)
 638 #define MIPS_CONF4_FTLBWAYS_SHIFT       (4)
 639 #define MIPS_CONF4_FTLBWAYS     (_ULCAST_(15) << MIPS_CONF4_FTLBWAYS_SHIFT)
 640 #define MIPS_CONF4_FTLBPAGESIZE_SHIFT   (8)
 641 /* bits 10:8 in FTLB-only configurations */
 642 #define MIPS_CONF4_FTLBPAGESIZE (_ULCAST_(7) << MIPS_CONF4_FTLBPAGESIZE_SHIFT)
 643 /* bits 12:8 in VTLB-FTLB only configurations */
 644 #define MIPS_CONF4_VFTLBPAGESIZE (_ULCAST_(31) << MIPS_CONF4_FTLBPAGESIZE_SHIFT)
 645 #define MIPS_CONF4_MMUEXTDEF    (_ULCAST_(3) << 14)
 646 #define MIPS_CONF4_MMUEXTDEF_MMUSIZEEXT (_ULCAST_(1) << 14)
 647 #define MIPS_CONF4_MMUEXTDEF_FTLBSIZEEXT        (_ULCAST_(2) << 14)
 648 #define MIPS_CONF4_MMUEXTDEF_VTLBSIZEEXT        (_ULCAST_(3) << 14)
 649 #define MIPS_CONF4_KSCREXIST_SHIFT      (16)
 650 #define MIPS_CONF4_KSCREXIST    (_ULCAST_(255) << MIPS_CONF4_KSCREXIST_SHIFT)
 651 #define MIPS_CONF4_VTLBSIZEEXT_SHIFT    (24)
 652 #define MIPS_CONF4_VTLBSIZEEXT  (_ULCAST_(15) << MIPS_CONF4_VTLBSIZEEXT_SHIFT)
 653 #define MIPS_CONF4_AE           (_ULCAST_(1) << 28)
 654 #define MIPS_CONF4_IE           (_ULCAST_(3) << 29)
 655 #define MIPS_CONF4_TLBINV       (_ULCAST_(2) << 29)
 656
 657 #define MIPS_CONF5_NF           (_ULCAST_(1) << 0)
 658 #define MIPS_CONF5_UFR          (_ULCAST_(1) << 2)
 659 #define MIPS_CONF5_MRP          (_ULCAST_(1) << 3)
 660 #define MIPS_CONF5_LLB          (_ULCAST_(1) << 4)
 661 #define MIPS_CONF5_MVH          (_ULCAST_(1) << 5)
 662 #define MIPS_CONF5_VP           (_ULCAST_(1) << 7)
 663 #define MIPS_CONF5_SBRI         (_ULCAST_(1) << 6)
 664 #define MIPS_CONF5_FRE          (_ULCAST_(1) << 8)
 665 #define MIPS_CONF5_UFE          (_ULCAST_(1) << 9)
 666 #define MIPS_CONF5_CA2          (_ULCAST_(1) << 14)
 667 #define MIPS_CONF5_MSAEN        (_ULCAST_(1) << 27)
 668 #define MIPS_CONF5_EVA          (_ULCAST_(1) << 28)
 669 #define MIPS_CONF5_CV           (_ULCAST_(1) << 29)
 670 #define MIPS_CONF5_K            (_ULCAST_(1) << 30)
 671
 672 #define MIPS_CONF6_SYND         (_ULCAST_(1) << 13)
 673 /* proAptiv FTLB on/off bit */
 674 #define MIPS_CONF6_FTLBEN       (_ULCAST_(1) << 15)
 675 /* Loongson-3 FTLB on/off bit */
 676 #define MIPS_CONF6_FTLBDIS      (_ULCAST_(1) << 22)
 677 /* FTLB probability bits */
 678 #define MIPS_CONF6_FTLBP_SHIFT  (16)
 679
 680 #define MIPS_CONF7_WII          (_ULCAST_(1) << 31)
 681
 682 #define MIPS_CONF7_RPS          (_ULCAST_(1) << 2)
 683
 684 #define MIPS_CONF7_IAR          (_ULCAST_(1) << 10)
 685 #define MIPS_CONF7_AR           (_ULCAST_(1) << 16)
 686
 687 /* WatchLo* register definitions */
 688 #define MIPS_WATCHLO_IRW        (_ULCAST_(0x7) << 0)
 689
 690 /* WatchHi* register definitions */
 691 #define MIPS_WATCHHI_M          (_ULCAST_(1) << 31)
 692 #define MIPS_WATCHHI_G          (_ULCAST_(1) << 30)
 693 #define MIPS_WATCHHI_WM         (_ULCAST_(0x3) << 28)
 694 #define MIPS_WATCHHI_WM_R_RVA   (_ULCAST_(0) << 28)
 695 #define MIPS_WATCHHI_WM_R_GPA   (_ULCAST_(1) << 28)
 696 #define MIPS_WATCHHI_WM_G_GVA   (_ULCAST_(2) << 28)
 697 #define MIPS_WATCHHI_EAS        (_ULCAST_(0x3) << 24)
 698 #define MIPS_WATCHHI_ASID       (_ULCAST_(0xff) << 16)
 699 #define MIPS_WATCHHI_MASK       (_ULCAST_(0x1ff) << 3)
 700 #define MIPS_WATCHHI_I          (_ULCAST_(1) << 2)
 701 #define MIPS_WATCHHI_R          (_ULCAST_(1) << 1)
 702 #define MIPS_WATCHHI_W          (_ULCAST_(1) << 0)
 703 #define MIPS_WATCHHI_IRW        (_ULCAST_(0x7) << 0)
 704
 705 /* PerfCnt control register definitions */
 706 #define MIPS_PERFCTRL_EXL       (_ULCAST_(1) << 0)
 707 #define MIPS_PERFCTRL_K         (_ULCAST_(1) << 1)
 708 #define MIPS_PERFCTRL_S         (_ULCAST_(1) << 2)
 709 #define MIPS_PERFCTRL_U         (_ULCAST_(1) << 3)
 710 #define MIPS_PERFCTRL_IE        (_ULCAST_(1) << 4)
 711 #define MIPS_PERFCTRL_EVENT_S   5
 712 #define MIPS_PERFCTRL_EVENT     (_ULCAST_(0x3ff) << MIPS_PERFCTRL_EVENT_S)
 713 #define MIPS_PERFCTRL_PCTD      (_ULCAST_(1) << 15)
 714 #define MIPS_PERFCTRL_EC        (_ULCAST_(0x3) << 23)
 715 #define MIPS_PERFCTRL_EC_R      (_ULCAST_(0) << 23)
 716 #define MIPS_PERFCTRL_EC_RI     (_ULCAST_(1) << 23)
 717 #define MIPS_PERFCTRL_EC_G      (_ULCAST_(2) << 23)
 718 #define MIPS_PERFCTRL_EC_GRI    (_ULCAST_(3) << 23)
 719 #define MIPS_PERFCTRL_W         (_ULCAST_(1) << 30)
 720 #define MIPS_PERFCTRL_M         (_ULCAST_(1) << 31)
 721
 722 /* PerfCnt control register MT extensions used by MIPS cores */
 723 #define MIPS_PERFCTRL_VPEID_S   16
 724 #define MIPS_PERFCTRL_VPEID     (_ULCAST_(0xf) << MIPS_PERFCTRL_VPEID_S)
 725 #define MIPS_PERFCTRL_TCID_S    22
 726 #define MIPS_PERFCTRL_TCID      (_ULCAST_(0xff) << MIPS_PERFCTRL_TCID_S)
 727 #define MIPS_PERFCTRL_MT_EN     (_ULCAST_(0x3) << 20)
 728 #define MIPS_PERFCTRL_MT_EN_ALL (_ULCAST_(0) << 20)
 729 #define MIPS_PERFCTRL_MT_EN_VPE (_ULCAST_(1) << 20)
 730 #define MIPS_PERFCTRL_MT_EN_TC  (_ULCAST_(2) << 20)
 731
 732 /* PerfCnt control register MT extensions used by BMIPS5000 */
 733 #define BRCM_PERFCTRL_TC        (_ULCAST_(1) << 30)
 734
 735 /* PerfCnt control register MT extensions used by Netlogic XLR */
 736 #define XLR_PERFCTRL_ALLTHREADS (_ULCAST_(1) << 13)
 737
 738 /* MAAR bit definitions */
 739 #define MIPS_MAAR_VH            (_U64CAST_(1) << 63)
 740 #define MIPS_MAAR_ADDR          ((BIT_ULL(BITS_PER_LONG - 12) - 1) << 12)
 741 #define MIPS_MAAR_ADDR_SHIFT    12
 742 #define MIPS_MAAR_S             (_ULCAST_(1) << 1)
 743 #define MIPS_MAAR_VL            (_ULCAST_(1) << 0)
 744
 745 /* MAARI bit definitions */
 746 #define MIPS_MAARI_INDEX        (_ULCAST_(0x3f) << 0)
 747
 748 /* EBase bit definitions */
 749 #define MIPS_EBASE_CPUNUM_SHIFT 0
 750 #define MIPS_EBASE_CPUNUM       (_ULCAST_(0x3ff) << 0)
 751 #define MIPS_EBASE_WG_SHIFT     11
 752 #define MIPS_EBASE_WG           (_ULCAST_(1) << 11)
 753 #define MIPS_EBASE_BASE_SHIFT   12
 754 #define MIPS_EBASE_BASE         (~_ULCAST_((1 << MIPS_EBASE_BASE_SHIFT) - 1))
 755
 756 /* CMGCRBase bit definitions */
 757 #define MIPS_CMGCRB_BASE        11
 758 #define MIPS_CMGCRF_BASE        (~_ULCAST_((1 << MIPS_CMGCRB_BASE) - 1))
 759
 760 /* LLAddr bit definitions */
 761 #define MIPS_LLADDR_LLB_SHIFT   0
 762 #define MIPS_LLADDR_LLB         (_ULCAST_(1) << MIPS_LLADDR_LLB_SHIFT)
 763
 764 /*
 765  * Bits in the MIPS32 Memory Segmentation registers.
 766  */
 767 #define MIPS_SEGCFG_PA_SHIFT    9
 768 #define MIPS_SEGCFG_PA          (_ULCAST_(127) << MIPS_SEGCFG_PA_SHIFT)
 769 #define MIPS_SEGCFG_AM_SHIFT    4
 770 #define MIPS_SEGCFG_AM          (_ULCAST_(7) << MIPS_SEGCFG_AM_SHIFT)
 771 #define MIPS_SEGCFG_EU_SHIFT    3
 772 #define MIPS_SEGCFG_EU          (_ULCAST_(1) << MIPS_SEGCFG_EU_SHIFT)
 773 #define MIPS_SEGCFG_C_SHIFT     0
 774 #define MIPS_SEGCFG_C           (_ULCAST_(7) << MIPS_SEGCFG_C_SHIFT)
 775
 776 #define MIPS_SEGCFG_UUSK        _ULCAST_(7)
 777 #define MIPS_SEGCFG_USK         _ULCAST_(5)
 778 #define MIPS_SEGCFG_MUSUK       _ULCAST_(4)
 779 #define MIPS_SEGCFG_MUSK        _ULCAST_(3)
 780 #define MIPS_SEGCFG_MSK         _ULCAST_(2)
 781 #define MIPS_SEGCFG_MK          _ULCAST_(1)
 782 #define MIPS_SEGCFG_UK          _ULCAST_(0)
 783
 784 #define MIPS_PWFIELD_GDI_SHIFT  24
 785 #define MIPS_PWFIELD_GDI_MASK   0x3f000000
 786 #define MIPS_PWFIELD_UDI_SHIFT  18
 787 #define MIPS_PWFIELD_UDI_MASK   0x00fc0000
 788 #define MIPS_PWFIELD_MDI_SHIFT  12
 789 #define MIPS_PWFIELD_MDI_MASK   0x0003f000
 790 #define MIPS_PWFIELD_PTI_SHIFT  6
 791 #define MIPS_PWFIELD_PTI_MASK   0x00000fc0
 792 #define MIPS_PWFIELD_PTEI_SHIFT 0
 793 #define MIPS_PWFIELD_PTEI_MASK  0x0000003f
 794
 795 #define MIPS_PWSIZE_PS_SHIFT    30
 796 #define MIPS_PWSIZE_PS_MASK     0x40000000
 797 #define MIPS_PWSIZE_GDW_SHIFT   24
 798 #define MIPS_PWSIZE_GDW_MASK    0x3f000000
 799 #define MIPS_PWSIZE_UDW_SHIFT   18
 800 #define MIPS_PWSIZE_UDW_MASK    0x00fc0000
 801 #define MIPS_PWSIZE_MDW_SHIFT   12
 802 #define MIPS_PWSIZE_MDW_MASK    0x0003f000
 803 #define MIPS_PWSIZE_PTW_SHIFT   6
 804 #define MIPS_PWSIZE_PTW_MASK    0x00000fc0
 805 #define MIPS_PWSIZE_PTEW_SHIFT  0
 806 #define MIPS_PWSIZE_PTEW_MASK   0x0000003f
 807
 808 #define MIPS_PWCTL_PWEN_SHIFT   31
 809 #define MIPS_PWCTL_PWEN_MASK    0x80000000
 810 #define MIPS_PWCTL_XK_SHIFT     28
 811 #define MIPS_PWCTL_XK_MASK      0x10000000
 812 #define MIPS_PWCTL_XS_SHIFT     27
 813 #define MIPS_PWCTL_XS_MASK      0x08000000
 814 #define MIPS_PWCTL_XU_SHIFT     26
 815 #define MIPS_PWCTL_XU_MASK      0x04000000
 816 #define MIPS_PWCTL_DPH_SHIFT    7
 817 #define MIPS_PWCTL_DPH_MASK     0x00000080
 818 #define MIPS_PWCTL_HUGEPG_SHIFT 6
 819 #define MIPS_PWCTL_HUGEPG_MASK  0x00000060
 820 #define MIPS_PWCTL_PSN_SHIFT    0
 821 #define MIPS_PWCTL_PSN_MASK     0x0000003f
 822
 823 /* GuestCtl0 fields */
 824 #define MIPS_GCTL0_GM_SHIFT     31
 825 #define MIPS_GCTL0_GM           (_ULCAST_(1) << MIPS_GCTL0_GM_SHIFT)
 826 #define MIPS_GCTL0_RI_SHIFT     30
 827 #define MIPS_GCTL0_RI           (_ULCAST_(1) << MIPS_GCTL0_RI_SHIFT)
 828 #define MIPS_GCTL0_MC_SHIFT     29
 829 #define MIPS_GCTL0_MC           (_ULCAST_(1) << MIPS_GCTL0_MC_SHIFT)
 830 #define MIPS_GCTL0_CP0_SHIFT    28
 831 #define MIPS_GCTL0_CP0          (_ULCAST_(1) << MIPS_GCTL0_CP0_SHIFT)
 832 #define MIPS_GCTL0_AT_SHIFT     26
 833 #define MIPS_GCTL0_AT           (_ULCAST_(0x3) << MIPS_GCTL0_AT_SHIFT)
 834 #define MIPS_GCTL0_GT_SHIFT     25
 835 #define MIPS_GCTL0_GT           (_ULCAST_(1) << MIPS_GCTL0_GT_SHIFT)
 836 #define MIPS_GCTL0_CG_SHIFT     24
 837 #define MIPS_GCTL0_CG           (_ULCAST_(1) << MIPS_GCTL0_CG_SHIFT)
 838 #define MIPS_GCTL0_CF_SHIFT     23
 839 #define MIPS_GCTL0_CF           (_ULCAST_(1) << MIPS_GCTL0_CF_SHIFT)
 840 #define MIPS_GCTL0_G1_SHIFT     22
 841 #define MIPS_GCTL0_G1           (_ULCAST_(1) << MIPS_GCTL0_G1_SHIFT)
 842 #define MIPS_GCTL0_G0E_SHIFT    19
 843 #define MIPS_GCTL0_G0E          (_ULCAST_(1) << MIPS_GCTL0_G0E_SHIFT)
 844 #define MIPS_GCTL0_PT_SHIFT     18
 845 #define MIPS_GCTL0_PT           (_ULCAST_(1) << MIPS_GCTL0_PT_SHIFT)
 846 #define MIPS_GCTL0_RAD_SHIFT    9
 847 #define MIPS_GCTL0_RAD          (_ULCAST_(1) << MIPS_GCTL0_RAD_SHIFT)
 848 #define MIPS_GCTL0_DRG_SHIFT    8
 849 #define MIPS_GCTL0_DRG          (_ULCAST_(1) << MIPS_GCTL0_DRG_SHIFT)
 850 #define MIPS_GCTL0_G2_SHIFT     7
 851 #define MIPS_GCTL0_G2           (_ULCAST_(1) << MIPS_GCTL0_G2_SHIFT)
 852 #define MIPS_GCTL0_GEXC_SHIFT   2
 853 #define MIPS_GCTL0_GEXC         (_ULCAST_(0x1f) << MIPS_GCTL0_GEXC_SHIFT)
 854 #define MIPS_GCTL0_SFC2_SHIFT   1
 855 #define MIPS_GCTL0_SFC2         (_ULCAST_(1) << MIPS_GCTL0_SFC2_SHIFT)
 856 #define MIPS_GCTL0_SFC1_SHIFT   0
 857 #define MIPS_GCTL0_SFC1         (_ULCAST_(1) << MIPS_GCTL0_SFC1_SHIFT)
 858
 859 /* GuestCtl0.AT Guest address translation control */
 860 #define MIPS_GCTL0_AT_ROOT      1  /* Guest MMU under Root control */
 861 #define MIPS_GCTL0_AT_GUEST     3  /* Guest MMU under Guest control */
 862
 863 /* GuestCtl0.GExcCode Hypervisor exception cause codes */
 864 #define MIPS_GCTL0_GEXC_GPSI    0  /* Guest Privileged Sensitive Instruction */
 865 #define MIPS_GCTL0_GEXC_GSFC    1  /* Guest Software Field Change */
 866 #define MIPS_GCTL0_GEXC_HC      2  /* Hypercall */
 867 #define MIPS_GCTL0_GEXC_GRR     3  /* Guest Reserved Instruction Redirect */
 868 #define MIPS_GCTL0_GEXC_GVA     8  /* Guest Virtual Address available */
 869 #define MIPS_GCTL0_GEXC_GHFC    9  /* Guest Hardware Field Change */
 870 #define MIPS_GCTL0_GEXC_GPA     10 /* Guest Physical Address available */
 871
 872 /* GuestCtl0Ext fields */
 873 #define MIPS_GCTL0EXT_RPW_SHIFT 8
 874 #define MIPS_GCTL0EXT_RPW       (_ULCAST_(0x3) << MIPS_GCTL0EXT_RPW_SHIFT)
 875 #define MIPS_GCTL0EXT_NCC_SHIFT 6
 876 #define MIPS_GCTL0EXT_NCC       (_ULCAST_(0x3) << MIPS_GCTL0EXT_NCC_SHIFT)
 877 #define MIPS_GCTL0EXT_CGI_SHIFT 4
 878 #define MIPS_GCTL0EXT_CGI       (_ULCAST_(1) << MIPS_GCTL0EXT_CGI_SHIFT)
 879 #define MIPS_GCTL0EXT_FCD_SHIFT 3
 880 #define MIPS_GCTL0EXT_FCD       (_ULCAST_(1) << MIPS_GCTL0EXT_FCD_SHIFT)
 881 #define MIPS_GCTL0EXT_OG_SHIFT  2
 882 #define MIPS_GCTL0EXT_OG        (_ULCAST_(1) << MIPS_GCTL0EXT_OG_SHIFT)
 883 #define MIPS_GCTL0EXT_BG_SHIFT  1
 884 #define MIPS_GCTL0EXT_BG        (_ULCAST_(1) << MIPS_GCTL0EXT_BG_SHIFT)
 885 #define MIPS_GCTL0EXT_MG_SHIFT  0
 886 #define MIPS_GCTL0EXT_MG        (_ULCAST_(1) << MIPS_GCTL0EXT_MG_SHIFT)
 887
 888 /* GuestCtl0Ext.RPW Root page walk configuration */
 889 #define MIPS_GCTL0EXT_RPW_BOTH  0  /* Root PW for GPA->RPA and RVA->RPA */
 890 #define MIPS_GCTL0EXT_RPW_GPA   2  /* Root PW for GPA->RPA */
 891 #define MIPS_GCTL0EXT_RPW_RVA   3  /* Root PW for RVA->RPA */
 892
 893 /* GuestCtl0Ext.NCC Nested cache coherency attributes */
 894 #define MIPS_GCTL0EXT_NCC_IND   0  /* Guest CCA independent of Root CCA */
 895 #define MIPS_GCTL0EXT_NCC_MOD   1  /* Guest CCA modified by Root CCA */
 896
 897 /* GuestCtl1 fields */
 898 #define MIPS_GCTL1_ID_SHIFT     0
 899 #define MIPS_GCTL1_ID_WIDTH     8
 900 #define MIPS_GCTL1_ID           (_ULCAST_(0xff) << MIPS_GCTL1_ID_SHIFT)
 901 #define MIPS_GCTL1_RID_SHIFT    16
 902 #define MIPS_GCTL1_RID_WIDTH    8
 903 #define MIPS_GCTL1_RID          (_ULCAST_(0xff) << MIPS_GCTL1_RID_SHIFT)
 904 #define MIPS_GCTL1_EID_SHIFT    24
 905 #define MIPS_GCTL1_EID_WIDTH    8
 906 #define MIPS_GCTL1_EID          (_ULCAST_(0xff) << MIPS_GCTL1_EID_SHIFT)
 907
 908 /* GuestID reserved for root context */
 909 #define MIPS_GCTL1_ROOT_GUESTID 0
 910
 911 /* CDMMBase register bit definitions */
 912 #define MIPS_CDMMBASE_SIZE_SHIFT 0
 913 #define MIPS_CDMMBASE_SIZE      (_ULCAST_(511) << MIPS_CDMMBASE_SIZE_SHIFT)
 914 #define MIPS_CDMMBASE_CI        (_ULCAST_(1) << 9)
 915 #define MIPS_CDMMBASE_EN        (_ULCAST_(1) << 10)
 916 #define MIPS_CDMMBASE_ADDR_SHIFT 11
 917 #define MIPS_CDMMBASE_ADDR_START 15
 918
 919 /* RDHWR register numbers */
 920 #define MIPS_HWR_CPUNUM         0       /* CPU number */
 921 #define MIPS_HWR_SYNCISTEP      1       /* SYNCI step size */
 922 #define MIPS_HWR_CC             2       /* Cycle counter */
 923 #define MIPS_HWR_CCRES          3       /* Cycle counter resolution */
 924 #define MIPS_HWR_ULR            29      /* UserLocal */
 925 #define MIPS_HWR_IMPL1          30      /* Implementation dependent */
 926 #define MIPS_HWR_IMPL2          31      /* Implementation dependent */
 927
 928 /* Bits in HWREna register */
 929 #define MIPS_HWRENA_CPUNUM      (_ULCAST_(1) << MIPS_HWR_CPUNUM)
 930 #define MIPS_HWRENA_SYNCISTEP   (_ULCAST_(1) << MIPS_HWR_SYNCISTEP)
 931 #define MIPS_HWRENA_CC          (_ULCAST_(1) << MIPS_HWR_CC)
 932 #define MIPS_HWRENA_CCRES       (_ULCAST_(1) << MIPS_HWR_CCRES)
 933 #define MIPS_HWRENA_ULR         (_ULCAST_(1) << MIPS_HWR_ULR)
 934 #define MIPS_HWRENA_IMPL1       (_ULCAST_(1) << MIPS_HWR_IMPL1)
 935 #define MIPS_HWRENA_IMPL2       (_ULCAST_(1) << MIPS_HWR_IMPL2)
 936
 937 /*
 938  * Bitfields in the TX39 family CP0 Configuration Register 3
 939  */
 940 #define TX39_CONF_ICS_SHIFT     19
 941 #define TX39_CONF_ICS_MASK      0x00380000
 942 #define TX39_CONF_ICS_1KB       0x00000000
 943 #define TX39_CONF_ICS_2KB       0x00080000
 944 #define TX39_CONF_ICS_4KB       0x00100000
 945 #define TX39_CONF_ICS_8KB       0x00180000
 946 #define TX39_CONF_ICS_16KB      0x00200000
 947
 948 #define TX39_CONF_DCS_SHIFT     16
 949 #define TX39_CONF_DCS_MASK      0x00070000
 950 #define TX39_CONF_DCS_1KB       0x00000000
 951 #define TX39_CONF_DCS_2KB       0x00010000
 952 #define TX39_CONF_DCS_4KB       0x00020000
 953 #define TX39_CONF_DCS_8KB       0x00030000
 954 #define TX39_CONF_DCS_16KB      0x00040000
 955
 956 #define TX39_CONF_CWFON         0x00004000
 957 #define TX39_CONF_WBON          0x00002000
 958 #define TX39_CONF_RF_SHIFT      10
 959 #define TX39_CONF_RF_MASK       0x00000c00
 960 #define TX39_CONF_DOZE          0x00000200
 961 #define TX39_CONF_HALT          0x00000100
 962 #define TX39_CONF_LOCK          0x00000080
 963 #define TX39_CONF_ICE           0x00000020
 964 #define TX39_CONF_DCE           0x00000010
 965 #define TX39_CONF_IRSIZE_SHIFT  2
 966 #define TX39_CONF_IRSIZE_MASK   0x0000000c
 967 #define TX39_CONF_DRSIZE_SHIFT  0
 968 #define TX39_CONF_DRSIZE_MASK   0x00000003
 969
 970 /*
 971  * Interesting Bits in the R10K CP0 Branch Diagnostic Register
 972  */
 973 /* Disable Branch Target Address Cache */
 974 #define R10K_DIAG_D_BTAC        (_ULCAST_(1) << 27)
 975 /* Enable Branch Prediction Global History */
 976 #define R10K_DIAG_E_GHIST       (_ULCAST_(1) << 26)
 977 /* Disable Branch Return Cache */
 978 #define R10K_DIAG_D_BRC         (_ULCAST_(1) << 22)
 979
 980 /* Flush ITLB */
 981 #define LOONGSON_DIAG_ITLB      (_ULCAST_(1) << 2)
 982 /* Flush DTLB */
 983 #define LOONGSON_DIAG_DTLB      (_ULCAST_(1) << 3)
 984 /* Flush VTLB */
 985 #define LOONGSON_DIAG_VTLB      (_ULCAST_(1) << 12)
 986 /* Flush FTLB */
 987 #define LOONGSON_DIAG_FTLB      (_ULCAST_(1) << 13)
 988
 989 /* CvmCtl register field definitions */
 990 #define CVMCTL_IPPCI_SHIFT      7
 991 #define CVMCTL_IPPCI            (_U64CAST_(0x7) << CVMCTL_IPPCI_SHIFT)
 992 #define CVMCTL_IPTI_SHIFT       4
 993 #define CVMCTL_IPTI             (_U64CAST_(0x7) << CVMCTL_IPTI_SHIFT)
 994
 995 /* CvmMemCtl2 register field definitions */
 996 #define CVMMEMCTL2_INHIBITTS    (_U64CAST_(1) << 17)
 997
 998 /* CvmVMConfig register field definitions */
 999 #define CVMVMCONF_DGHT          (_U64CAST_(1) << 60)
1000 #define CVMVMCONF_MMUSIZEM1_S   12
1001 #define CVMVMCONF_MMUSIZEM1     (_U64CAST_(0xff) << CVMVMCONF_MMUSIZEM1_S)
1002 #define CVMVMCONF_RMMUSIZEM1_S  0
1003 #define CVMVMCONF_RMMUSIZEM1    (_U64CAST_(0xff) << CVMVMCONF_RMMUSIZEM1_S)
1004
1005 /*
1006  * Coprocessor 1 (FPU) register names
1007  */
1008 #define CP1_REVISION    $0
1009 #define CP1_UFR         $1
1010 #define CP1_UNFR        $4
1011 #define CP1_FCCR        $25
1012 #define CP1_FEXR        $26
1013 #define CP1_FENR        $28
1014 #define CP1_STATUS      $31
1015
1016
1017 /*
1018  * Bits in the MIPS32/64 coprocessor 1 (FPU) revision register.
1019  */
1020 #define MIPS_FPIR_S             (_ULCAST_(1) << 16)
1021 #define MIPS_FPIR_D             (_ULCAST_(1) << 17)
1022 #define MIPS_FPIR_PS            (_ULCAST_(1) << 18)
1023 #define MIPS_FPIR_3D            (_ULCAST_(1) << 19)
1024 #define MIPS_FPIR_W             (_ULCAST_(1) << 20)
1025 #define MIPS_FPIR_L             (_ULCAST_(1) << 21)
1026 #define MIPS_FPIR_F64           (_ULCAST_(1) << 22)
1027 #define MIPS_FPIR_HAS2008       (_ULCAST_(1) << 23)
1028 #define MIPS_FPIR_UFRP          (_ULCAST_(1) << 28)
1029 #define MIPS_FPIR_FREP          (_ULCAST_(1) << 29)
1030
1031 /*
1032  * Bits in the MIPS32/64 coprocessor 1 (FPU) condition codes register.
1033  */
1034 #define MIPS_FCCR_CONDX_S       0
1035 #define MIPS_FCCR_CONDX         (_ULCAST_(255) << MIPS_FCCR_CONDX_S)
1036 #define MIPS_FCCR_COND0_S       0
1037 #define MIPS_FCCR_COND0         (_ULCAST_(1) << MIPS_FCCR_COND0_S)
1038 #define MIPS_FCCR_COND1_S       1
1039 #define MIPS_FCCR_COND1         (_ULCAST_(1) << MIPS_FCCR_COND1_S)
1040 #define MIPS_FCCR_COND2_S       2
1041 #define MIPS_FCCR_COND2         (_ULCAST_(1) << MIPS_FCCR_COND2_S)
1042 #define MIPS_FCCR_COND3_S       3
1043 #define MIPS_FCCR_COND3         (_ULCAST_(1) << MIPS_FCCR_COND3_S)
1044 #define MIPS_FCCR_COND4_S       4
1045 #define MIPS_FCCR_COND4         (_ULCAST_(1) << MIPS_FCCR_COND4_S)
1046 #define MIPS_FCCR_COND5_S       5
1047 #define MIPS_FCCR_COND5         (_ULCAST_(1) << MIPS_FCCR_COND5_S)
1048 #define MIPS_FCCR_COND6_S       6
1049 #define MIPS_FCCR_COND6         (_ULCAST_(1) << MIPS_FCCR_COND6_S)
1050 #define MIPS_FCCR_COND7_S       7
1051 #define MIPS_FCCR_COND7         (_ULCAST_(1) << MIPS_FCCR_COND7_S)
1052
1053 /*
1054  * Bits in the MIPS32/64 coprocessor 1 (FPU) enables register.
1055  */
1056 #define MIPS_FENR_FS_S          2
1057 #define MIPS_FENR_FS            (_ULCAST_(1) << MIPS_FENR_FS_S)
1058
1059 /*
1060  * FPU Status Register Values
1061  */
1062 #define FPU_CSR_COND_S  23                                      /* $fcc0 */
1063 #define FPU_CSR_COND    (_ULCAST_(1) << FPU_CSR_COND_S)
1064
1065 #define FPU_CSR_FS_S    24              /* flush denormalised results to 0 */
1066 #define FPU_CSR_FS      (_ULCAST_(1) << FPU_CSR_FS_S)
1067
1068 #define FPU_CSR_CONDX_S 25                                      /* $fcc[7:1] */
1069 #define FPU_CSR_CONDX   (_ULCAST_(127) << FPU_CSR_CONDX_S)
1070 #define FPU_CSR_COND1_S 25                                      /* $fcc1 */
1071 #define FPU_CSR_COND1   (_ULCAST_(1) << FPU_CSR_COND1_S)
1072 #define FPU_CSR_COND2_S 26                                      /* $fcc2 */
1073 #define FPU_CSR_COND2   (_ULCAST_(1) << FPU_CSR_COND2_S)
1074 #define FPU_CSR_COND3_S 27                                      /* $fcc3 */
1075 #define FPU_CSR_COND3   (_ULCAST_(1) << FPU_CSR_COND3_S)
1076 #define FPU_CSR_COND4_S 28                                      /* $fcc4 */
1077 #define FPU_CSR_COND4   (_ULCAST_(1) << FPU_CSR_COND4_S)
1078 #define FPU_CSR_COND5_S 29                                      /* $fcc5 */
1079 #define FPU_CSR_COND5   (_ULCAST_(1) << FPU_CSR_COND5_S)
1080 #define FPU_CSR_COND6_S 30                                      /* $fcc6 */
1081 #define FPU_CSR_COND6   (_ULCAST_(1) << FPU_CSR_COND6_S)
1082 #define FPU_CSR_COND7_S 31                                      /* $fcc7 */
1083 #define FPU_CSR_COND7   (_ULCAST_(1) << FPU_CSR_COND7_S)
1084
1085 /*
1086  * Bits 22:20 of the FPU Status Register will be read as 0,
1087  * and should be written as zero.
1088  */
1089 #define FPU_CSR_RSVD    (_ULCAST_(7) << 20)
1090
1091 #define FPU_CSR_ABS2008 (_ULCAST_(1) << 19)
1092 #define FPU_CSR_NAN2008 (_ULCAST_(1) << 18)
1093
1094 /*
1095  * X the exception cause indicator
1096  * E the exception enable
1097  * S the sticky/flag bit
1098 */
1099 #define FPU_CSR_ALL_X   0x0003f000
1100 #define FPU_CSR_UNI_X   0x00020000
1101 #define FPU_CSR_INV_X   0x00010000
1102 #define FPU_CSR_DIV_X   0x00008000
1103 #define FPU_CSR_OVF_X   0x00004000
1104 #define FPU_CSR_UDF_X   0x00002000
1105 #define FPU_CSR_INE_X   0x00001000
1106
1107 #define FPU_CSR_ALL_E   0x00000f80
1108 #define FPU_CSR_INV_E   0x00000800
1109 #define FPU_CSR_DIV_E   0x00000400
1110 #define FPU_CSR_OVF_E   0x00000200
1111 #define FPU_CSR_UDF_E   0x00000100
1112 #define FPU_CSR_INE_E   0x00000080
1113
1114 #define FPU_CSR_ALL_S   0x0000007c
1115 #define FPU_CSR_INV_S   0x00000040
1116 #define FPU_CSR_DIV_S   0x00000020
1117 #define FPU_CSR_OVF_S   0x00000010
1118 #define FPU_CSR_UDF_S   0x00000008
1119 #define FPU_CSR_INE_S   0x00000004
1120
1121 /* Bits 0 and 1 of FPU Status Register specify the rounding mode */
1122 #define FPU_CSR_RM      0x00000003
1123 #define FPU_CSR_RN      0x0     /* nearest */
1124 #define FPU_CSR_RZ      0x1     /* towards zero */
1125 #define FPU_CSR_RU      0x2     /* towards +Infinity */
1126 #define FPU_CSR_RD      0x3     /* towards -Infinity */
1127
1128
1129 #ifndef __ASSEMBLY__
1130
1131 /*
1132  * Macros for handling the ISA mode bit for MIPS16 and microMIPS.
1133  */
1134 #if defined(CONFIG_SYS_SUPPORTS_MIPS16) || \
1135     defined(CONFIG_SYS_SUPPORTS_MICROMIPS)
1136 #define get_isa16_mode(x)               ((x) & 0x1)
1137 #define msk_isa16_mode(x)               ((x) & ~0x1)
1138 #define set_isa16_mode(x)               do { (x) |= 0x1; } while(0)
1139 #else
1140 #define get_isa16_mode(x)               0
1141 #define msk_isa16_mode(x)               (x)
1142 #define set_isa16_mode(x)               do { } while(0)
1143 #endif
1144
1145 /*
1146  * microMIPS instructions can be 16-bit or 32-bit in length. This
1147  * returns a 1 if the instruction is 16-bit and a 0 if 32-bit.
1148  */
1149 static inline int mm_insn_16bit(u16 insn)
1150 {
1151         u16 opcode = (insn >> 10) & 0x7;
1152
1153         return (opcode >= 1 && opcode <= 3) ? 1 : 0;
1154 }
1155
1156 /*
1157  * Helper macros for generating raw instruction encodings in inline asm.
1158  */
1159 #ifdef CONFIG_CPU_MICROMIPS
1160 #define _ASM_INSN16_IF_MM(_enc)                 \
1161         ".insn\n\t"                             \
1162         ".hword (" #_enc ")\n\t"
1163 #define _ASM_INSN32_IF_MM(_enc)                 \
1164         ".insn\n\t"                             \
1165         ".hword ((" #_enc ") >> 16)\n\t"        \
1166         ".hword ((" #_enc ") & 0xffff)\n\t"
1167 #else
1168 #define _ASM_INSN_IF_MIPS(_enc)                 \
1169         ".insn\n\t"                             \
1170         ".word (" #_enc ")\n\t"
1171 #endif
1172
1173 #ifndef _ASM_INSN16_IF_MM
1174 #define _ASM_INSN16_IF_MM(_enc)
1175 #endif
1176 #ifndef _ASM_INSN32_IF_MM
1177 #define _ASM_INSN32_IF_MM(_enc)
1178 #endif
1179 #ifndef _ASM_INSN_IF_MIPS
1180 #define _ASM_INSN_IF_MIPS(_enc)
1181 #endif
1182
1183 /*
1184  * parse_r var, r - Helper assembler macro for parsing register names.
1185  *
1186  * This converts the register name in $n form provided in \r to the
1187  * corresponding register number, which is assigned to the variable \var. It is
1188  * needed to allow explicit encoding of instructions in inline assembly where
1189  * registers are chosen by the compiler in $n form, allowing us to avoid using
1190  * fixed register numbers.
1191  *
1192  * It also allows newer instructions (not implemented by the assembler) to be
1193  * transparently implemented using assembler macros, instead of needing separate
1194  * cases depending on toolchain support.
1195  *
1196  * Simple usage example:
1197  * __asm__ __volatile__("parse_r __rt, %0\n\t"
1198  *                      ".insn\n\t"
1199  *                      "# di    %0\n\t"
1200  *                      ".word   (0x41606000 | (__rt << 16))"
1201  *                      : "=r" (status);
1202  */
1203
1204 /* Match an individual register number and assign to \var */
1205 #define _IFC_REG(n)                             \
1206         ".ifc   \\r, $" #n "\n\t"               \
1207         "\\var  = " #n "\n\t"                   \
1208         ".endif\n\t"
1209
1210 __asm__(".macro parse_r var r\n\t"
1211         "\\var  = -1\n\t"
1212         _IFC_REG(0)  _IFC_REG(1)  _IFC_REG(2)  _IFC_REG(3)
1213         _IFC_REG(4)  _IFC_REG(5)  _IFC_REG(6)  _IFC_REG(7)
1214         _IFC_REG(8)  _IFC_REG(9)  _IFC_REG(10) _IFC_REG(11)
1215         _IFC_REG(12) _IFC_REG(13) _IFC_REG(14) _IFC_REG(15)
1216         _IFC_REG(16) _IFC_REG(17) _IFC_REG(18) _IFC_REG(19)
1217         _IFC_REG(20) _IFC_REG(21) _IFC_REG(22) _IFC_REG(23)
1218         _IFC_REG(24) _IFC_REG(25) _IFC_REG(26) _IFC_REG(27)
1219         _IFC_REG(28) _IFC_REG(29) _IFC_REG(30) _IFC_REG(31)
1220         ".iflt  \\var\n\t"
1221         ".error \"Unable to parse register name \\r\"\n\t"
1222         ".endif\n\t"
1223         ".endm");
1224
1225 #undef _IFC_REG
1226
1227 /*
1228  * C macros for generating assembler macros for common instruction formats.
1229  *
1230  * The names of the operands can be chosen by the caller, and the encoding of
1231  * register operand \<Rn> is assigned to __<Rn> where it can be accessed from
1232  * the ENC encodings.
1233  */
1234
1235 /* Instructions with no operands */
1236 #define _ASM_MACRO_0(OP, ENC)                                           \
1237         __asm__(".macro " #OP "\n\t"                                    \
1238                 ENC                                                     \
1239                 ".endm")
1240
1241 /* Instructions with 2 register operands */
1242 #define _ASM_MACRO_2R(OP, R1, R2, ENC)                                  \
1243         __asm__(".macro " #OP " " #R1 ", " #R2 "\n\t"                   \
1244                 "parse_r __" #R1 ", \\" #R1 "\n\t"                      \
1245                 "parse_r __" #R2 ", \\" #R2 "\n\t"                      \
1246                 ENC                                                     \
1247                 ".endm")
1248
1249 /* Instructions with 3 register operands */
1250 #define _ASM_MACRO_3R(OP, R1, R2, R3, ENC)                              \
1251         __asm__(".macro " #OP " " #R1 ", " #R2 ", " #R3 "\n\t"          \
1252                 "parse_r __" #R1 ", \\" #R1 "\n\t"                      \
1253                 "parse_r __" #R2 ", \\" #R2 "\n\t"                      \
1254                 "parse_r __" #R3 ", \\" #R3 "\n\t"                      \
1255                 ENC                                                     \
1256                 ".endm")
1257
1258 /* Instructions with 2 register operands and 1 optional select operand */
1259 #define _ASM_MACRO_2R_1S(OP, R1, R2, SEL3, ENC)                         \
1260         __asm__(".macro " #OP " " #R1 ", " #R2 ", " #SEL3 " = 0\n\t"    \
1261                 "parse_r __" #R1 ", \\" #R1 "\n\t"                      \
1262                 "parse_r __" #R2 ", \\" #R2 "\n\t"                      \
1263                 ENC                                                     \
1264                 ".endm")
1265
1266 /*
1267  * TLB Invalidate Flush
1268  */
1269 static inline void tlbinvf(void)
1270 {
1271         __asm__ __volatile__(
1272                 ".set push\n\t"
1273                 ".set noreorder\n\t"
1274                 "# tlbinvf\n\t"
1275                 _ASM_INSN_IF_MIPS(0x42000004)
1276                 _ASM_INSN32_IF_MM(0x0000537c)
1277                 ".set pop");
1278 }
1279
1280
1281 /*
1282  * Functions to access the R10000 performance counters.  These are basically
1283  * mfc0 and mtc0 instructions from and to coprocessor register with a 5-bit
1284  * performance counter number encoded into bits 1 ... 5 of the instruction.
1285  * Only performance counters 0 to 1 actually exist, so for a non-R10000 aware
1286  * disassembler these will look like an access to sel 0 or 1.
1287  */
1288 #define read_r10k_perf_cntr(counter)                            \
1289 ({                                                              \
1290         unsigned int __res;                                     \
1291         __asm__ __volatile__(                                   \
1292         "mfpc\t%0, %1"                                          \
1293         : "=r" (__res)                                          \
1294         : "i" (counter));                                       \
1295                                                                 \
1296         __res;                                                  \
1297 })
1298
1299 #define write_r10k_perf_cntr(counter,val)                       \
1300 do {                                                            \
1301         __asm__ __volatile__(                                   \
1302         "mtpc\t%0, %1"                                          \
1303         :                                                       \
1304         : "r" (val), "i" (counter));                            \
1305 } while (0)
1306
1307 #define read_r10k_perf_event(counter)                           \
1308 ({                                                              \
1309         unsigned int __res;                                     \
1310         __asm__ __volatile__(                                   \
1311         "mfps\t%0, %1"                                          \
1312         : "=r" (__res)                                          \
1313         : "i" (counter));                                       \
1314                                                                 \
1315         __res;                                                  \
1316 })
1317
1318 #define write_r10k_perf_cntl(counter,val)                       \
1319 do {                                                            \
1320         __asm__ __volatile__(                                   \
1321         "mtps\t%0, %1"                                          \
1322         :                                                       \
1323         : "r" (val), "i" (counter));                            \
1324 } while (0)
1325
1326
1327 /*
1328  * Macros to access the system control coprocessor
1329  */
1330
1331 #define ___read_32bit_c0_register(source, sel, vol)                     \
1332 ({ unsigned int __res;                                                  \
1333         if (sel == 0)                                                   \
1334                 __asm__ vol(                                            \
1335                         "mfc0\t%0, " #source "\n\t"                     \
1336                         : "=r" (__res));                                \
1337         else                                                            \
1338                 __asm__ vol(                                            \
1339                         ".set\tmips32\n\t"                              \
1340                         "mfc0\t%0, " #source ", " #sel "\n\t"           \
1341                         ".set\tmips0\n\t"                               \
1342                         : "=r" (__res));                                \
1343         __res;                                                          \
1344 })
1345
1346 #define ___read_64bit_c0_register(source, sel, vol)                     \
1347 ({ unsigned long long __res;                                            \
1348         if (sizeof(unsigned long) == 4)                                 \
1349                 __res = __read_64bit_c0_split(source, sel, vol);        \
1350         else if (sel == 0)                                              \
1351                 __asm__ vol(                                            \
1352                         ".set\tmips3\n\t"                               \
1353                         "dmfc0\t%0, " #source "\n\t"                    \
1354                         ".set\tmips0"                                   \
1355                         : "=r" (__res));                                \
1356         else                                                            \
1357                 __asm__ vol(                                            \
1358                         ".set\tmips64\n\t"                              \
1359                         "dmfc0\t%0, " #source ", " #sel "\n\t"          \
1360                         ".set\tmips0"                                   \
1361                         : "=r" (__res));                                \
1362         __res;                                                          \
1363 })
1364
1365 #define __read_32bit_c0_register(source, sel)                           \
1366         ___read_32bit_c0_register(source, sel, __volatile__)
1367
1368 #define __read_const_32bit_c0_register(source, sel)                     \
1369         ___read_32bit_c0_register(source, sel,)
1370
1371 #define __read_64bit_c0_register(source, sel)                           \
1372         ___read_64bit_c0_register(source, sel, __volatile__)
1373
1374 #define __read_const_64bit_c0_register(source, sel)                     \
1375         ___read_64bit_c0_register(source, sel,)
1376
1377 #define __write_32bit_c0_register(register, sel, value)                 \
1378 do {                                                                    \
1379         if (sel == 0)                                                   \
1380                 __asm__ __volatile__(                                   \
1381                         "mtc0\t%z0, " #register "\n\t"                  \
1382                         : : "Jr" ((unsigned int)(value)));              \
1383         else                                                            \
1384                 __asm__ __volatile__(                                   \
1385                         ".set\tmips32\n\t"                              \
1386                         "mtc0\t%z0, " #register ", " #sel "\n\t"        \
1387                         ".set\tmips0"                                   \
1388                         : : "Jr" ((unsigned int)(value)));              \
1389 } while (0)
1390
1391 #define __write_64bit_c0_register(register, sel, value)                 \
1392 do {                                                                    \
1393         if (sizeof(unsigned long) == 4)                                 \
1394                 __write_64bit_c0_split(register, sel, value);           \
1395         else if (sel == 0)                                              \
1396                 __asm__ __volatile__(                                   \
1397                         ".set\tmips3\n\t"                               \
1398                         "dmtc0\t%z0, " #register "\n\t"                 \
1399                         ".set\tmips0"                                   \
1400                         : : "Jr" (value));                              \
1401         else                                                            \
1402                 __asm__ __volatile__(                                   \
1403                         ".set\tmips64\n\t"                              \
1404                         "dmtc0\t%z0, " #register ", " #sel "\n\t"       \
1405                         ".set\tmips0"                                   \
1406                         : : "Jr" (value));                              \
1407 } while (0)
1408
1409 #define __read_ulong_c0_register(reg, sel)                              \
1410         ((sizeof(unsigned long) == 4) ?                                 \
1411         (unsigned long) __read_32bit_c0_register(reg, sel) :            \
1412         (unsigned long) __read_64bit_c0_register(reg, sel))
1413
1414 #define __read_const_ulong_c0_register(reg, sel)                        \
1415         ((sizeof(unsigned long) == 4) ?                                 \
1416         (unsigned long) __read_const_32bit_c0_register(reg, sel) :      \
1417         (unsigned long) __read_const_64bit_c0_register(reg, sel))
1418
1419 #define __write_ulong_c0_register(reg, sel, val)                        \
1420 do {                                                                    \
1421         if (sizeof(unsigned long) == 4)                                 \
1422                 __write_32bit_c0_register(reg, sel, val);               \
1423         else                                                            \
1424                 __write_64bit_c0_register(reg, sel, val);               \
1425 } while (0)
1426
1427 /*
1428  * On RM7000/RM9000 these are uses to access cop0 set 1 registers
1429  */
1430 #define __read_32bit_c0_ctrl_register(source)                           \
1431 ({ unsigned int __res;                                                  \
1432         __asm__ __volatile__(                                           \
1433                 "cfc0\t%0, " #source "\n\t"                             \
1434                 : "=r" (__res));                                        \
1435         __res;                                                          \
1436 })
1437
1438 #define __write_32bit_c0_ctrl_register(register, value)                 \
1439 do {                                                                    \
1440         __asm__ __volatile__(                                           \
1441                 "ctc0\t%z0, " #register "\n\t"                          \
1442                 : : "Jr" ((unsigned int)(value)));                      \
1443 } while (0)
1444
1445 /*
1446  * These versions are only needed for systems with more than 38 bits of
1447  * physical address space running the 32-bit kernel.  That's none atm :-)
1448  */
1449 #define __read_64bit_c0_split(source, sel, vol)                         \
1450 ({                                                                      \
1451         unsigned long long __val;                                       \
1452         unsigned long __flags;                                          \
1453                                                                         \
1454         local_irq_save(__flags);                                        \
1455         if (sel == 0)                                                   \
1456                 __asm__ vol(                                            \
1457                         ".set\tmips64\n\t"                              \
1458                         "dmfc0\t%L0, " #source "\n\t"                   \
1459                         "dsra\t%M0, %L0, 32\n\t"                        \
1460                         "sll\t%L0, %L0, 0\n\t"                          \
1461                         ".set\tmips0"                                   \
1462                         : "=r" (__val));                                \
1463         else                                                            \
1464                 __asm__ vol(                                            \
1465                         ".set\tmips64\n\t"                              \
1466                         "dmfc0\t%L0, " #source ", " #sel "\n\t"         \
1467                         "dsra\t%M0, %L0, 32\n\t"                        \
1468                         "sll\t%L0, %L0, 0\n\t"                          \
1469                         ".set\tmips0"                                   \
1470                         : "=r" (__val));                                \
1471         local_irq_restore(__flags);                                     \
1472                                                                         \
1473         __val;                                                          \
1474 })
1475
1476 #define __write_64bit_c0_split(source, sel, val)                        \
1477 do {                                                                    \
1478         unsigned long long __tmp;                                       \
1479         unsigned long __flags;                                          \
1480                                                                         \
1481         local_irq_save(__flags);                                        \
1482         if (sel == 0)                                                   \
1483                 __asm__ __volatile__(                                   \
1484                         ".set\tmips64\n\t"                              \
1485                         "dsll\t%L0, %L1, 32\n\t"                        \
1486                         "dsrl\t%L0, %L0, 32\n\t"                        \
1487                         "dsll\t%M0, %M1, 32\n\t"                        \
1488                         "or\t%L0, %L0, %M0\n\t"                         \
1489                         "dmtc0\t%L0, " #source "\n\t"                   \
1490                         ".set\tmips0"                                   \
1491                         : "=&r,r" (__tmp)                               \
1492                         : "r,0" (val));                                 \
1493         else                                                            \
1494                 __asm__ __volatile__(                                   \
1495                         ".set\tmips64\n\t"                              \
1496                         "dsll\t%L0, %L1, 32\n\t"                        \
1497                         "dsrl\t%L0, %L0, 32\n\t"                        \
1498                         "dsll\t%M0, %M1, 32\n\t"                        \
1499                         "or\t%L0, %L0, %M0\n\t"                         \
1500                         "dmtc0\t%L0, " #source ", " #sel "\n\t"         \
1501                         ".set\tmips0"                                   \
1502                         : "=&r,r" (__tmp)                               \
1503                         : "r,0" (val));                                 \
1504         local_irq_restore(__flags);                                     \
1505 } while (0)
1506
1507 #ifndef TOOLCHAIN_SUPPORTS_XPA
1508 _ASM_MACRO_2R_1S(mfhc0, rt, rs, sel,
1509         _ASM_INSN_IF_MIPS(0x40400000 | __rt << 16 | __rs << 11 | \\sel)
1510         _ASM_INSN32_IF_MM(0x000000f4 | __rt << 21 | __rs << 16 | \\sel << 11));
1511 _ASM_MACRO_2R_1S(mthc0, rt, rd, sel,
1512         _ASM_INSN_IF_MIPS(0x40c00000 | __rt << 16 | __rd << 11 | \\sel)
1513         _ASM_INSN32_IF_MM(0x000002f4 | __rt << 21 | __rd << 16 | \\sel << 11));
1514 #define _ASM_SET_XPA ""
1515 #else   /* !TOOLCHAIN_SUPPORTS_XPA */
1516 #define _ASM_SET_XPA ".set\txpa\n\t"
1517 #endif
1518
1519 #define __readx_32bit_c0_register(source, sel)                          \
1520 ({                                                                      \
1521         unsigned int __res;                                             \
1522                                                                         \
1523         __asm__ __volatile__(                                           \
1524         "       .set    push                                    \n"     \
1525         "       .set    mips32r2                                \n"     \
1526         _ASM_SET_XPA                                                    \
1527         "       mfhc0   %0, " #source ", %1                     \n"     \
1528         "       .set    pop                                     \n"     \
1529         : "=r" (__res)                                                  \
1530         : "i" (sel));                                                   \
1531         __res;                                                          \
1532 })
1533
1534 #define __writex_32bit_c0_register(register, sel, value)                \
1535 do {                                                                    \
1536         __asm__ __volatile__(                                           \
1537         "       .set    push                                    \n"     \
1538         "       .set    mips32r2                                \n"     \
1539         _ASM_SET_XPA                                                    \
1540         "       mthc0   %z0, " #register ", %1                  \n"     \
1541         "       .set    pop                                     \n"     \
1542         :                                                               \
1543         : "Jr" (value), "i" (sel));                                     \
1544 } while (0)
1545
1546 #define read_c0_index()         __read_32bit_c0_register($0, 0)
1547 #define write_c0_index(val)     __write_32bit_c0_register($0, 0, val)
1548
1549 #define read_c0_random()        __read_32bit_c0_register($1, 0)
1550 #define write_c0_random(val)    __write_32bit_c0_register($1, 0, val)
1551
1552 #define read_c0_entrylo0()      __read_ulong_c0_register($2, 0)
1553 #define write_c0_entrylo0(val)  __write_ulong_c0_register($2, 0, val)
1554
1555 #define readx_c0_entrylo0()     __readx_32bit_c0_register($2, 0)
1556 #define writex_c0_entrylo0(val) __writex_32bit_c0_register($2, 0, val)
1557
1558 #define read_c0_entrylo1()      __read_ulong_c0_register($3, 0)
1559 #define write_c0_entrylo1(val)  __write_ulong_c0_register($3, 0, val)
1560
1561 #define readx_c0_entrylo1()     __readx_32bit_c0_register($3, 0)
1562 #define writex_c0_entrylo1(val) __writex_32bit_c0_register($3, 0, val)
1563
1564 #define read_c0_conf()          __read_32bit_c0_register($3, 0)
1565 #define write_c0_conf(val)      __write_32bit_c0_register($3, 0, val)
1566
1567 #define read_c0_globalnumber()  __read_32bit_c0_register($3, 1)
1568
1569 #define read_c0_context()       __read_ulong_c0_register($4, 0)
1570 #define write_c0_context(val)   __write_ulong_c0_register($4, 0, val)
1571
1572 #define read_c0_contextconfig()         __read_32bit_c0_register($4, 1)
1573 #define write_c0_contextconfig(val)     __write_32bit_c0_register($4, 1, val)
1574
1575 #define read_c0_userlocal()     __read_ulong_c0_register($4, 2)
1576 #define write_c0_userlocal(val) __write_ulong_c0_register($4, 2, val)
1577
1578 #define read_c0_xcontextconfig()        __read_ulong_c0_register($4, 3)
1579 #define write_c0_xcontextconfig(val)    __write_ulong_c0_register($4, 3, val)
1580
1581 #define read_c0_pagemask()      __read_32bit_c0_register($5, 0)
1582 #define write_c0_pagemask(val)  __write_32bit_c0_register($5, 0, val)
1583
1584 #define read_c0_pagegrain()     __read_32bit_c0_register($5, 1)
1585 #define write_c0_pagegrain(val) __write_32bit_c0_register($5, 1, val)
1586
1587 #define read_c0_wired()         __read_32bit_c0_register($6, 0)
1588 #define write_c0_wired(val)     __write_32bit_c0_register($6, 0, val)
1589
1590 #define read_c0_info()          __read_32bit_c0_register($7, 0)
1591
1592 #define read_c0_cache()         __read_32bit_c0_register($7, 0) /* TX39xx */
1593 #define write_c0_cache(val)     __write_32bit_c0_register($7, 0, val)
1594
1595 #define read_c0_badvaddr()      __read_ulong_c0_register($8, 0)
1596 #define write_c0_badvaddr(val)  __write_ulong_c0_register($8, 0, val)
1597
1598 #define read_c0_badinstr()      __read_32bit_c0_register($8, 1)
1599 #define read_c0_badinstrp()     __read_32bit_c0_register($8, 2)
1600
1601 #define read_c0_count()         __read_32bit_c0_register($9, 0)
1602 #define write_c0_count(val)     __write_32bit_c0_register($9, 0, val)
1603
1604 #define read_c0_count2()        __read_32bit_c0_register($9, 6) /* pnx8550 */
1605 #define write_c0_count2(val)    __write_32bit_c0_register($9, 6, val)
1606
1607 #define read_c0_count3()        __read_32bit_c0_register($9, 7) /* pnx8550 */
1608 #define write_c0_count3(val)    __write_32bit_c0_register($9, 7, val)
1609
1610 #define read_c0_entryhi()       __read_ulong_c0_register($10, 0)
1611 #define write_c0_entryhi(val)   __write_ulong_c0_register($10, 0, val)
1612
1613 #define read_c0_guestctl1()     __read_32bit_c0_register($10, 4)
1614 #define write_c0_guestctl1(val) __write_32bit_c0_register($10, 4, val)
1615
1616 #define read_c0_guestctl2()     __read_32bit_c0_register($10, 5)
1617 #define write_c0_guestctl2(val) __write_32bit_c0_register($10, 5, val)
1618
1619 #define read_c0_guestctl3()     __read_32bit_c0_register($10, 6)
1620 #define write_c0_guestctl3(val) __write_32bit_c0_register($10, 6, val)
1621
1622 #define read_c0_compare()       __read_32bit_c0_register($11, 0)
1623 #define write_c0_compare(val)   __write_32bit_c0_register($11, 0, val)
1624
1625 #define read_c0_guestctl0ext()  __read_32bit_c0_register($11, 4)
1626 #define write_c0_guestctl0ext(val) __write_32bit_c0_register($11, 4, val)
1627
1628 #define read_c0_compare2()      __read_32bit_c0_register($11, 6) /* pnx8550 */
1629 #define write_c0_compare2(val)  __write_32bit_c0_register($11, 6, val)
1630
1631 #define read_c0_compare3()      __read_32bit_c0_register($11, 7) /* pnx8550 */
1632 #define write_c0_compare3(val)  __write_32bit_c0_register($11, 7, val)
1633
1634 #define read_c0_status()        __read_32bit_c0_register($12, 0)
1635
1636 #define write_c0_status(val)    __write_32bit_c0_register($12, 0, val)
1637
1638 #define read_c0_guestctl0()     __read_32bit_c0_register($12, 6)
1639 #define write_c0_guestctl0(val) __write_32bit_c0_register($12, 6, val)
1640
1641 #define read_c0_gtoffset()      __read_32bit_c0_register($12, 7)
1642 #define write_c0_gtoffset(val)  __write_32bit_c0_register($12, 7, val)
1643
1644 #define read_c0_cause()         __read_32bit_c0_register($13, 0)
1645 #define write_c0_cause(val)     __write_32bit_c0_register($13, 0, val)
1646
1647 #define read_c0_epc()           __read_ulong_c0_register($14, 0)
1648 #define write_c0_epc(val)       __write_ulong_c0_register($14, 0, val)
1649
1650 #define read_c0_prid()          __read_const_32bit_c0_register($15, 0)
1651
1652 #define read_c0_cmgcrbase()     __read_ulong_c0_register($15, 3)
1653
1654 #define read_c0_config()        __read_32bit_c0_register($16, 0)
1655 #define read_c0_config1()       __read_32bit_c0_register($16, 1)
1656 #define read_c0_config2()       __read_32bit_c0_register($16, 2)
1657 #define read_c0_config3()       __read_32bit_c0_register($16, 3)
1658 #define read_c0_config4()       __read_32bit_c0_register($16, 4)
1659 #define read_c0_config5()       __read_32bit_c0_register($16, 5)
1660 #define read_c0_config6()       __read_32bit_c0_register($16, 6)
1661 #define read_c0_config7()       __read_32bit_c0_register($16, 7)
1662 #define write_c0_config(val)    __write_32bit_c0_register($16, 0, val)
1663 #define write_c0_config1(val)   __write_32bit_c0_register($16, 1, val)
1664 #define write_c0_config2(val)   __write_32bit_c0_register($16, 2, val)
1665 #define write_c0_config3(val)   __write_32bit_c0_register($16, 3, val)
1666 #define write_c0_config4(val)   __write_32bit_c0_register($16, 4, val)
1667 #define write_c0_config5(val)   __write_32bit_c0_register($16, 5, val)
1668 #define write_c0_config6(val)   __write_32bit_c0_register($16, 6, val)
1669 #define write_c0_config7(val)   __write_32bit_c0_register($16, 7, val)
1670
1671 #define read_c0_lladdr()        __read_ulong_c0_register($17, 0)
1672 #define write_c0_lladdr(val)    __write_ulong_c0_register($17, 0, val)
1673 #define read_c0_maar()          __read_ulong_c0_register($17, 1)
1674 #define write_c0_maar(val)      __write_ulong_c0_register($17, 1, val)
1675 #define read_c0_maari()         __read_32bit_c0_register($17, 2)
1676 #define write_c0_maari(val)     __write_32bit_c0_register($17, 2, val)
1677
1678 /*
1679  * The WatchLo register.  There may be up to 8 of them.
1680  */
1681 #define read_c0_watchlo0()      __read_ulong_c0_register($18, 0)
1682 #define read_c0_watchlo1()      __read_ulong_c0_register($18, 1)
1683 #define read_c0_watchlo2()      __read_ulong_c0_register($18, 2)
1684 #define read_c0_watchlo3()      __read_ulong_c0_register($18, 3)
1685 #define read_c0_watchlo4()      __read_ulong_c0_register($18, 4)
1686 #define read_c0_watchlo5()      __read_ulong_c0_register($18, 5)
1687 #define read_c0_watchlo6()      __read_ulong_c0_register($18, 6)
1688 #define read_c0_watchlo7()      __read_ulong_c0_register($18, 7)
1689 #define write_c0_watchlo0(val)  __write_ulong_c0_register($18, 0, val)
1690 #define write_c0_watchlo1(val)  __write_ulong_c0_register($18, 1, val)
1691 #define write_c0_watchlo2(val)  __write_ulong_c0_register($18, 2, val)
1692 #define write_c0_watchlo3(val)  __write_ulong_c0_register($18, 3, val)
1693 #define write_c0_watchlo4(val)  __write_ulong_c0_register($18, 4, val)
1694 #define write_c0_watchlo5(val)  __write_ulong_c0_register($18, 5, val)
1695 #define write_c0_watchlo6(val)  __write_ulong_c0_register($18, 6, val)
1696 #define write_c0_watchlo7(val)  __write_ulong_c0_register($18, 7, val)
1697
1698 /*
1699  * The WatchHi register.  There may be up to 8 of them.
1700  */
1701 #define read_c0_watchhi0()      __read_32bit_c0_register($19, 0)
1702 #define read_c0_watchhi1()      __read_32bit_c0_register($19, 1)
1703 #define read_c0_watchhi2()      __read_32bit_c0_register($19, 2)
1704 #define read_c0_watchhi3()      __read_32bit_c0_register($19, 3)
1705 #define read_c0_watchhi4()      __read_32bit_c0_register($19, 4)
1706 #define read_c0_watchhi5()      __read_32bit_c0_register($19, 5)
1707 #define read_c0_watchhi6()      __read_32bit_c0_register($19, 6)
1708 #define read_c0_watchhi7()      __read_32bit_c0_register($19, 7)
1709
1710 #define write_c0_watchhi0(val)  __write_32bit_c0_register($19, 0, val)
1711 #define write_c0_watchhi1(val)  __write_32bit_c0_register($19, 1, val)
1712 #define write_c0_watchhi2(val)  __write_32bit_c0_register($19, 2, val)
1713 #define write_c0_watchhi3(val)  __write_32bit_c0_register($19, 3, val)
1714 #define write_c0_watchhi4(val)  __write_32bit_c0_register($19, 4, val)
1715 #define write_c0_watchhi5(val)  __write_32bit_c0_register($19, 5, val)
1716 #define write_c0_watchhi6(val)  __write_32bit_c0_register($19, 6, val)
1717 #define write_c0_watchhi7(val)  __write_32bit_c0_register($19, 7, val)
1718
1719 #define read_c0_xcontext()      __read_ulong_c0_register($20, 0)
1720 #define write_c0_xcontext(val)  __write_ulong_c0_register($20, 0, val)
1721
1722 #define read_c0_intcontrol()    __read_32bit_c0_ctrl_register($20)
1723 #define write_c0_intcontrol(val) __write_32bit_c0_ctrl_register($20, val)
1724
1725 #define read_c0_framemask()     __read_32bit_c0_register($21, 0)
1726 #define write_c0_framemask(val) __write_32bit_c0_register($21, 0, val)
1727
1728 #define read_c0_diag()          __read_32bit_c0_register($22, 0)
1729 #define write_c0_diag(val)      __write_32bit_c0_register($22, 0, val)
1730
1731 /* R10K CP0 Branch Diagnostic register is 64bits wide */
1732 #define read_c0_r10k_diag()     __read_64bit_c0_register($22, 0)
1733 #define write_c0_r10k_diag(val) __write_64bit_c0_register($22, 0, val)
1734
1735 #define read_c0_diag1()         __read_32bit_c0_register($22, 1)
1736 #define write_c0_diag1(val)     __write_32bit_c0_register($22, 1, val)
1737
1738 #define read_c0_diag2()         __read_32bit_c0_register($22, 2)
1739 #define write_c0_diag2(val)     __write_32bit_c0_register($22, 2, val)
1740
1741 #define read_c0_diag3()         __read_32bit_c0_register($22, 3)
1742 #define write_c0_diag3(val)     __write_32bit_c0_register($22, 3, val)
1743
1744 #define read_c0_diag4()         __read_32bit_c0_register($22, 4)
1745 #define write_c0_diag4(val)     __write_32bit_c0_register($22, 4, val)
1746
1747 #define read_c0_diag5()         __read_32bit_c0_register($22, 5)
1748 #define write_c0_diag5(val)     __write_32bit_c0_register($22, 5, val)
1749
1750 #define read_c0_debug()         __read_32bit_c0_register($23, 0)
1751 #define write_c0_debug(val)     __write_32bit_c0_register($23, 0, val)
1752
1753 #define read_c0_depc()          __read_ulong_c0_register($24, 0)
1754 #define write_c0_depc(val)      __write_ulong_c0_register($24, 0, val)
1755
1756 /*
1757  * MIPS32 / MIPS64 performance counters
1758  */
1759 #define read_c0_perfctrl0()     __read_32bit_c0_register($25, 0)
1760 #define write_c0_perfctrl0(val) __write_32bit_c0_register($25, 0, val)
1761 #define read_c0_perfcntr0()     __read_32bit_c0_register($25, 1)
1762 #define write_c0_perfcntr0(val) __write_32bit_c0_register($25, 1, val)
1763 #define read_c0_perfcntr0_64()  __read_64bit_c0_register($25, 1)
1764 #define write_c0_perfcntr0_64(val) __write_64bit_c0_register($25, 1, val)
1765 #define read_c0_perfctrl1()     __read_32bit_c0_register($25, 2)
1766 #define write_c0_perfctrl1(val) __write_32bit_c0_register($25, 2, val)
1767 #define read_c0_perfcntr1()     __read_32bit_c0_register($25, 3)
1768 #define write_c0_perfcntr1(val) __write_32bit_c0_register($25, 3, val)
1769 #define read_c0_perfcntr1_64()  __read_64bit_c0_register($25, 3)
1770 #define write_c0_perfcntr1_64(val) __write_64bit_c0_register($25, 3, val)
1771 #define read_c0_perfctrl2()     __read_32bit_c0_register($25, 4)
1772 #define write_c0_perfctrl2(val) __write_32bit_c0_register($25, 4, val)
1773 #define read_c0_perfcntr2()     __read_32bit_c0_register($25, 5)
1774 #define write_c0_perfcntr2(val) __write_32bit_c0_register($25, 5, val)
1775 #define read_c0_perfcntr2_64()  __read_64bit_c0_register($25, 5)
1776 #define write_c0_perfcntr2_64(val) __write_64bit_c0_register($25, 5, val)
1777 #define read_c0_perfctrl3()     __read_32bit_c0_register($25, 6)
1778 #define write_c0_perfctrl3(val) __write_32bit_c0_register($25, 6, val)
1779 #define read_c0_perfcntr3()     __read_32bit_c0_register($25, 7)
1780 #define write_c0_perfcntr3(val) __write_32bit_c0_register($25, 7, val)
1781 #define read_c0_perfcntr3_64()  __read_64bit_c0_register($25, 7)
1782 #define write_c0_perfcntr3_64(val) __write_64bit_c0_register($25, 7, val)
1783
1784 #define read_c0_ecc()           __read_32bit_c0_register($26, 0)
1785 #define write_c0_ecc(val)       __write_32bit_c0_register($26, 0, val)
1786
1787 #define read_c0_derraddr0()     __read_ulong_c0_register($26, 1)
1788 #define write_c0_derraddr0(val) __write_ulong_c0_register($26, 1, val)
1789
1790 #define read_c0_cacheerr()      __read_32bit_c0_register($27, 0)
1791
1792 #define read_c0_derraddr1()     __read_ulong_c0_register($27, 1)
1793 #define write_c0_derraddr1(val) __write_ulong_c0_register($27, 1, val)
1794
1795 #define read_c0_taglo()         __read_32bit_c0_register($28, 0)
1796 #define write_c0_taglo(val)     __write_32bit_c0_register($28, 0, val)
1797
1798 #define read_c0_dtaglo()        __read_32bit_c0_register($28, 2)
1799 #define write_c0_dtaglo(val)    __write_32bit_c0_register($28, 2, val)
1800
1801 #define read_c0_ddatalo()       __read_32bit_c0_register($28, 3)
1802 #define write_c0_ddatalo(val)   __write_32bit_c0_register($28, 3, val)
1803
1804 #define read_c0_staglo()        __read_32bit_c0_register($28, 4)
1805 #define write_c0_staglo(val)    __write_32bit_c0_register($28, 4, val)
1806
1807 #define read_c0_taghi()         __read_32bit_c0_register($29, 0)
1808 #define write_c0_taghi(val)     __write_32bit_c0_register($29, 0, val)
1809
1810 #define read_c0_errorepc()      __read_ulong_c0_register($30, 0)
1811 #define write_c0_errorepc(val)  __write_ulong_c0_register($30, 0, val)
1812
1813 /* MIPSR2 */
1814 #define read_c0_hwrena()        __read_32bit_c0_register($7, 0)
1815 #define write_c0_hwrena(val)    __write_32bit_c0_register($7, 0, val)
1816
1817 #define read_c0_intctl()        __read_32bit_c0_register($12, 1)
1818 #define write_c0_intctl(val)    __write_32bit_c0_register($12, 1, val)
1819
1820 #define read_c0_srsctl()        __read_32bit_c0_register($12, 2)
1821 #define write_c0_srsctl(val)    __write_32bit_c0_register($12, 2, val)
1822
1823 #define read_c0_srsmap()        __read_32bit_c0_register($12, 3)
1824 #define write_c0_srsmap(val)    __write_32bit_c0_register($12, 3, val)
1825
1826 #define read_c0_ebase()         __read_32bit_c0_register($15, 1)
1827 #define write_c0_ebase(val)     __write_32bit_c0_register($15, 1, val)
1828
1829 #define read_c0_ebase_64()      __read_64bit_c0_register($15, 1)
1830 #define write_c0_ebase_64(val)  __write_64bit_c0_register($15, 1, val)
1831
1832 #define read_c0_cdmmbase()      __read_ulong_c0_register($15, 2)
1833 #define write_c0_cdmmbase(val)  __write_ulong_c0_register($15, 2, val)
1834
1835 /* MIPSR3 */
1836 #define read_c0_segctl0()       __read_32bit_c0_register($5, 2)
1837 #define write_c0_segctl0(val)   __write_32bit_c0_register($5, 2, val)
1838
1839 #define read_c0_segctl1()       __read_32bit_c0_register($5, 3)
1840 #define write_c0_segctl1(val)   __write_32bit_c0_register($5, 3, val)
1841
1842 #define read_c0_segctl2()       __read_32bit_c0_register($5, 4)
1843 #define write_c0_segctl2(val)   __write_32bit_c0_register($5, 4, val)
1844
1845 /* Hardware Page Table Walker */
1846 #define read_c0_pwbase()        __read_ulong_c0_register($5, 5)
1847 #define write_c0_pwbase(val)    __write_ulong_c0_register($5, 5, val)
1848
1849 #define read_c0_pwfield()       __read_ulong_c0_register($5, 6)
1850 #define write_c0_pwfield(val)   __write_ulong_c0_register($5, 6, val)
1851
1852 #define read_c0_pwsize()        __read_ulong_c0_register($5, 7)
1853 #define write_c0_pwsize(val)    __write_ulong_c0_register($5, 7, val)
1854
1855 #define read_c0_pwctl()         __read_32bit_c0_register($6, 6)
1856 #define write_c0_pwctl(val)     __write_32bit_c0_register($6, 6, val)
1857
1858 #define read_c0_pgd()           __read_64bit_c0_register($9, 7)
1859 #define write_c0_pgd(val)       __write_64bit_c0_register($9, 7, val)
1860
1861 #define read_c0_kpgd()          __read_64bit_c0_register($31, 7)
1862 #define write_c0_kpgd(val)      __write_64bit_c0_register($31, 7, val)
1863
1864 /* Cavium OCTEON (cnMIPS) */
1865 #define read_c0_cvmcount()      __read_ulong_c0_register($9, 6)
1866 #define write_c0_cvmcount(val)  __write_ulong_c0_register($9, 6, val)
1867
1868 #define read_c0_cvmctl()        __read_64bit_c0_register($9, 7)
1869 #define write_c0_cvmctl(val)    __write_64bit_c0_register($9, 7, val)
1870
1871 #define read_c0_cvmmemctl()     __read_64bit_c0_register($11, 7)
1872 #define write_c0_cvmmemctl(val) __write_64bit_c0_register($11, 7, val)
1873
1874 #define read_c0_cvmmemctl2()    __read_64bit_c0_register($16, 6)
1875 #define write_c0_cvmmemctl2(val) __write_64bit_c0_register($16, 6, val)
1876
1877 #define read_c0_cvmvmconfig()   __read_64bit_c0_register($16, 7)
1878 #define write_c0_cvmvmconfig(val) __write_64bit_c0_register($16, 7, val)
1879
1880 /*
1881  * The cacheerr registers are not standardized.  On OCTEON, they are
1882  * 64 bits wide.
1883  */
1884 #define read_octeon_c0_icacheerr()      __read_64bit_c0_register($27, 0)
1885 #define write_octeon_c0_icacheerr(val)  __write_64bit_c0_register($27, 0, val)
1886
1887 #define read_octeon_c0_dcacheerr()      __read_64bit_c0_register($27, 1)
1888 #define write_octeon_c0_dcacheerr(val)  __write_64bit_c0_register($27, 1, val)
1889
1890 /* BMIPS3300 */
1891 #define read_c0_brcm_config_0()         __read_32bit_c0_register($22, 0)
1892 #define write_c0_brcm_config_0(val)     __write_32bit_c0_register($22, 0, val)
1893
1894 #define read_c0_brcm_bus_pll()          __read_32bit_c0_register($22, 4)
1895 #define write_c0_brcm_bus_pll(val)      __write_32bit_c0_register($22, 4, val)
1896
1897 #define read_c0_brcm_reset()            __read_32bit_c0_register($22, 5)
1898 #define write_c0_brcm_reset(val)        __write_32bit_c0_register($22, 5, val)
1899
1900 /* BMIPS43xx */
1901 #define read_c0_brcm_cmt_intr()         __read_32bit_c0_register($22, 1)
1902 #define write_c0_brcm_cmt_intr(val)     __write_32bit_c0_register($22, 1, val)
1903
1904 #define read_c0_brcm_cmt_ctrl()         __read_32bit_c0_register($22, 2)
1905 #define write_c0_brcm_cmt_ctrl(val)     __write_32bit_c0_register($22, 2, val)
1906
1907 #define read_c0_brcm_cmt_local()        __read_32bit_c0_register($22, 3)
1908 #define write_c0_brcm_cmt_local(val)    __write_32bit_c0_register($22, 3, val)
1909
1910 #define read_c0_brcm_config_1()         __read_32bit_c0_register($22, 5)
1911 #define write_c0_brcm_config_1(val)     __write_32bit_c0_register($22, 5, val)
1912
1913 #define read_c0_brcm_cbr()              __read_32bit_c0_register($22, 6)
1914 #define write_c0_brcm_cbr(val)          __write_32bit_c0_register($22, 6, val)
1915
1916 /* BMIPS5000 */
1917 #define read_c0_brcm_config()           __read_32bit_c0_register($22, 0)
1918 #define write_c0_brcm_config(val)       __write_32bit_c0_register($22, 0, val)
1919
1920 #define read_c0_brcm_mode()             __read_32bit_c0_register($22, 1)
1921 #define write_c0_brcm_mode(val)         __write_32bit_c0_register($22, 1, val)
1922
1923 #define read_c0_brcm_action()           __read_32bit_c0_register($22, 2)
1924 #define write_c0_brcm_action(val)       __write_32bit_c0_register($22, 2, val)
1925
1926 #define read_c0_brcm_edsp()             __read_32bit_c0_register($22, 3)
1927 #define write_c0_brcm_edsp(val)         __write_32bit_c0_register($22, 3, val)
1928
1929 #define read_c0_brcm_bootvec()          __read_32bit_c0_register($22, 4)
1930 #define write_c0_brcm_bootvec(val)      __write_32bit_c0_register($22, 4, val)
1931
1932 #define read_c0_brcm_sleepcount()       __read_32bit_c0_register($22, 7)
1933 #define write_c0_brcm_sleepcount(val)   __write_32bit_c0_register($22, 7, val)
1934
1935 /*
1936  * Macros to access the guest system control coprocessor
1937  */
1938
1939 #ifndef TOOLCHAIN_SUPPORTS_VIRT
1940 _ASM_MACRO_2R_1S(mfgc0, rt, rs, sel,
1941         _ASM_INSN_IF_MIPS(0x40600000 | __rt << 16 | __rs << 11 | \\sel)
1942         _ASM_INSN32_IF_MM(0x000004fc | __rt << 21 | __rs << 16 | \\sel << 11));
1943 _ASM_MACRO_2R_1S(dmfgc0, rt, rs, sel,
1944         _ASM_INSN_IF_MIPS(0x40600100 | __rt << 16 | __rs << 11 | \\sel)
1945         _ASM_INSN32_IF_MM(0x580004fc | __rt << 21 | __rs << 16 | \\sel << 11));
1946 _ASM_MACRO_2R_1S(mtgc0, rt, rd, sel,
1947         _ASM_INSN_IF_MIPS(0x40600200 | __rt << 16 | __rd << 11 | \\sel)
1948         _ASM_INSN32_IF_MM(0x000006fc | __rt << 21 | __rd << 16 | \\sel << 11));
1949 _ASM_MACRO_2R_1S(dmtgc0, rt, rd, sel,
1950         _ASM_INSN_IF_MIPS(0x40600300 | __rt << 16 | __rd << 11 | \\sel)
1951         _ASM_INSN32_IF_MM(0x580006fc | __rt << 21 | __rd << 16 | \\sel << 11));
1952 _ASM_MACRO_0(tlbgp,    _ASM_INSN_IF_MIPS(0x42000010)
1953                        _ASM_INSN32_IF_MM(0x0000017c));
1954 _ASM_MACRO_0(tlbgr,    _ASM_INSN_IF_MIPS(0x42000009)
1955                        _ASM_INSN32_IF_MM(0x0000117c));
1956 _ASM_MACRO_0(tlbgwi,   _ASM_INSN_IF_MIPS(0x4200000a)
1957                        _ASM_INSN32_IF_MM(0x0000217c));
1958 _ASM_MACRO_0(tlbgwr,   _ASM_INSN_IF_MIPS(0x4200000e)
1959                        _ASM_INSN32_IF_MM(0x0000317c));
1960 _ASM_MACRO_0(tlbginvf, _ASM_INSN_IF_MIPS(0x4200000c)
1961                        _ASM_INSN32_IF_MM(0x0000517c));
1962 #define _ASM_SET_VIRT ""
1963 #else   /* !TOOLCHAIN_SUPPORTS_VIRT */
1964 #define _ASM_SET_VIRT ".set\tvirt\n\t"
1965 #endif
1966
1967 #define __read_32bit_gc0_register(source, sel)                          \
1968 ({ int __res;                                                           \
1969         __asm__ __volatile__(                                           \
1970                 ".set\tpush\n\t"                                        \
1971                 ".set\tmips32r2\n\t"                                    \
1972                 _ASM_SET_VIRT                                           \
1973                 "mfgc0\t%0, " #source ", %1\n\t"                        \
1974                 ".set\tpop"                                             \
1975                 : "=r" (__res)                                          \
1976                 : "i" (sel));                                           \
1977         __res;                                                          \
1978 })
1979
1980 #define __read_64bit_gc0_register(source, sel)                          \
1981 ({ unsigned long long __res;                                            \
1982         __asm__ __volatile__(                                           \
1983                 ".set\tpush\n\t"                                        \
1984                 ".set\tmips64r2\n\t"                                    \
1985                 _ASM_SET_VIRT                                           \
1986                 "dmfgc0\t%0, " #source ", %1\n\t"                       \
1987                 ".set\tpop"                                             \
1988                 : "=r" (__res)                                          \
1989                 : "i" (sel));                                           \
1990         __res;                                                          \
1991 })
1992
1993 #define __write_32bit_gc0_register(register, sel, value)                \
1994 do {                                                                    \
1995         __asm__ __volatile__(                                           \
1996                 ".set\tpush\n\t"                                        \
1997                 ".set\tmips32r2\n\t"                                    \
1998                 _ASM_SET_VIRT                                           \
1999                 "mtgc0\t%z0, " #register ", %1\n\t"                     \
2000                 ".set\tpop"                                             \
2001                 : : "Jr" ((unsigned int)(value)),                       \
2002                     "i" (sel));                                         \
2003 } while (0)
2004
2005 #define __write_64bit_gc0_register(register, sel, value)                \
2006 do {                                                                    \
2007         __asm__ __volatile__(                                           \
2008                 ".set\tpush\n\t"                                        \
2009                 ".set\tmips64r2\n\t"                                    \
2010                 _ASM_SET_VIRT                                           \
2011                 "dmtgc0\t%z0, " #register ", %1\n\t"                    \
2012                 ".set\tpop"                                             \
2013                 : : "Jr" (value),                                       \
2014                     "i" (sel));                                         \
2015 } while (0)
2016
2017 #define __read_ulong_gc0_register(reg, sel)                             \
2018         ((sizeof(unsigned long) == 4) ?                                 \
2019         (unsigned long) __read_32bit_gc0_register(reg, sel) :           \
2020         (unsigned long) __read_64bit_gc0_register(reg, sel))
2021
2022 #define __write_ulong_gc0_register(reg, sel, val)                       \
2023 do {                                                                    \
2024         if (sizeof(unsigned long) == 4)                                 \
2025                 __write_32bit_gc0_register(reg, sel, val);              \
2026         else                                                            \
2027                 __write_64bit_gc0_register(reg, sel, val);              \
2028 } while (0)
2029
2030 #define read_gc0_index()                __read_32bit_gc0_register($0, 0)
2031 #define write_gc0_index(val)            __write_32bit_gc0_register($0, 0, val)
2032
2033 #define read_gc0_entrylo0()             __read_ulong_gc0_register($2, 0)
2034 #define write_gc0_entrylo0(val)         __write_ulong_gc0_register($2, 0, val)
2035
2036 #define read_gc0_entrylo1()             __read_ulong_gc0_register($3, 0)
2037 #define write_gc0_entrylo1(val)         __write_ulong_gc0_register($3, 0, val)
2038
2039 #define read_gc0_context()              __read_ulong_gc0_register($4, 0)
2040 #define write_gc0_context(val)          __write_ulong_gc0_register($4, 0, val)
2041
2042 #define read_gc0_contextconfig()        __read_32bit_gc0_register($4, 1)
2043 #define write_gc0_contextconfig(val)    __write_32bit_gc0_register($4, 1, val)
2044
2045 #define read_gc0_userlocal()            __read_ulong_gc0_register($4, 2)
2046 #define write_gc0_userlocal(val)        __write_ulong_gc0_register($4, 2, val)
2047
2048 #define read_gc0_xcontextconfig()       __read_ulong_gc0_register($4, 3)
2049 #define write_gc0_xcontextconfig(val)   __write_ulong_gc0_register($4, 3, val)
2050
2051 #define read_gc0_pagemask()             __read_32bit_gc0_register($5, 0)
2052 #define write_gc0_pagemask(val)         __write_32bit_gc0_register($5, 0, val)
2053
2054 #define read_gc0_pagegrain()            __read_32bit_gc0_register($5, 1)
2055 #define write_gc0_pagegrain(val)        __write_32bit_gc0_register($5, 1, val)
2056
2057 #define read_gc0_segctl0()              __read_ulong_gc0_register($5, 2)
2058 #define write_gc0_segctl0(val)          __write_ulong_gc0_register($5, 2, val)
2059
2060 #define read_gc0_segctl1()              __read_ulong_gc0_register($5, 3)
2061 #define write_gc0_segctl1(val)          __write_ulong_gc0_register($5, 3, val)
2062
2063 #define read_gc0_segctl2()              __read_ulong_gc0_register($5, 4)
2064 #define write_gc0_segctl2(val)          __write_ulong_gc0_register($5, 4, val)
2065
2066 #define read_gc0_pwbase()               __read_ulong_gc0_register($5, 5)
2067 #define write_gc0_pwbase(val)           __write_ulong_gc0_register($5, 5, val)
2068
2069 #define read_gc0_pwfield()              __read_ulong_gc0_register($5, 6)
2070 #define write_gc0_pwfield(val)          __write_ulong_gc0_register($5, 6, val)
2071
2072 #define read_gc0_pwsize()               __read_ulong_gc0_register($5, 7)
2073 #define write_gc0_pwsize(val)           __write_ulong_gc0_register($5, 7, val)
2074
2075 #define read_gc0_wired()                __read_32bit_gc0_register($6, 0)
2076 #define write_gc0_wired(val)            __write_32bit_gc0_register($6, 0, val)
2077
2078 #define read_gc0_pwctl()                __read_32bit_gc0_register($6, 6)
2079 #define write_gc0_pwctl(val)            __write_32bit_gc0_register($6, 6, val)
2080
2081 #define read_gc0_hwrena()               __read_32bit_gc0_register($7, 0)
2082 #define write_gc0_hwrena(val)           __write_32bit_gc0_register($7, 0, val)
2083
2084 #define read_gc0_badvaddr()             __read_ulong_gc0_register($8, 0)
2085 #define write_gc0_badvaddr(val)         __write_ulong_gc0_register($8, 0, val)
2086
2087 #define read_gc0_badinstr()             __read_32bit_gc0_register($8, 1)
2088 #define write_gc0_badinstr(val)         __write_32bit_gc0_register($8, 1, val)
2089
2090 #define read_gc0_badinstrp()            __read_32bit_gc0_register($8, 2)
2091 #define write_gc0_badinstrp(val)        __write_32bit_gc0_register($8, 2, val)
2092
2093 #define read_gc0_count()                __read_32bit_gc0_register($9, 0)
2094
2095 #define read_gc0_entryhi()              __read_ulong_gc0_register($10, 0)
2096 #define write_gc0_entryhi(val)          __write_ulong_gc0_register($10, 0, val)
2097
2098 #define read_gc0_compare()              __read_32bit_gc0_register($11, 0)
2099 #define write_gc0_compare(val)          __write_32bit_gc0_register($11, 0, val)
2100
2101 #define read_gc0_status()               __read_32bit_gc0_register($12, 0)
2102 #define write_gc0_status(val)           __write_32bit_gc0_register($12, 0, val)
2103
2104 #define read_gc0_intctl()               __read_32bit_gc0_register($12, 1)
2105 #define write_gc0_intctl(val)           __write_32bit_gc0_register($12, 1, val)
2106
2107 #define read_gc0_cause()                __read_32bit_gc0_register($13, 0)
2108 #define write_gc0_cause(val)            __write_32bit_gc0_register($13, 0, val)
2109
2110 #define read_gc0_epc()                  __read_ulong_gc0_register($14, 0)
2111 #define write_gc0_epc(val)              __write_ulong_gc0_register($14, 0, val)
2112
2113 #define read_gc0_prid()                 __read_32bit_gc0_register($15, 0)
2114
2115 #define read_gc0_ebase()                __read_32bit_gc0_register($15, 1)
2116 #define write_gc0_ebase(val)            __write_32bit_gc0_register($15, 1, val)
2117
2118 #define read_gc0_ebase_64()             __read_64bit_gc0_register($15, 1)
2119 #define write_gc0_ebase_64(val)         __write_64bit_gc0_register($15, 1, val)
2120
2121 #define read_gc0_config()               __read_32bit_gc0_register($16, 0)
2122 #define read_gc0_config1()              __read_32bit_gc0_register($16, 1)
2123 #define read_gc0_config2()              __read_32bit_gc0_register($16, 2)
2124 #define read_gc0_config3()              __read_32bit_gc0_register($16, 3)
2125 #define read_gc0_config4()              __read_32bit_gc0_register($16, 4)
2126 #define read_gc0_config5()              __read_32bit_gc0_register($16, 5)
2127 #define read_gc0_config6()              __read_32bit_gc0_register($16, 6)
2128 #define read_gc0_config7()              __read_32bit_gc0_register($16, 7)
2129 #define write_gc0_config(val)           __write_32bit_gc0_register($16, 0, val)
2130 #define write_gc0_config1(val)          __write_32bit_gc0_register($16, 1, val)
2131 #define write_gc0_config2(val)          __write_32bit_gc0_register($16, 2, val)
2132 #define write_gc0_config3(val)          __write_32bit_gc0_register($16, 3, val)
2133 #define write_gc0_config4(val)          __write_32bit_gc0_register($16, 4, val)
2134 #define write_gc0_config5(val)          __write_32bit_gc0_register($16, 5, val)
2135 #define write_gc0_config6(val)          __write_32bit_gc0_register($16, 6, val)
2136 #define write_gc0_config7(val)          __write_32bit_gc0_register($16, 7, val)
2137
2138 #define read_gc0_lladdr()               __read_ulong_gc0_register($17, 0)
2139 #define write_gc0_lladdr(val)           __write_ulong_gc0_register($17, 0, val)
2140
2141 #define read_gc0_watchlo0()             __read_ulong_gc0_register($18, 0)
2142 #define read_gc0_watchlo1()             __read_ulong_gc0_register($18, 1)
2143 #define read_gc0_watchlo2()             __read_ulong_gc0_register($18, 2)
2144 #define read_gc0_watchlo3()             __read_ulong_gc0_register($18, 3)
2145 #define read_gc0_watchlo4()             __read_ulong_gc0_register($18, 4)
2146 #define read_gc0_watchlo5()             __read_ulong_gc0_register($18, 5)
2147 #define read_gc0_watchlo6()             __read_ulong_gc0_register($18, 6)
2148 #define read_gc0_watchlo7()             __read_ulong_gc0_register($18, 7)
2149 #define write_gc0_watchlo0(val)         __write_ulong_gc0_register($18, 0, val)
2150 #define write_gc0_watchlo1(val)         __write_ulong_gc0_register($18, 1, val)
2151 #define write_gc0_watchlo2(val)         __write_ulong_gc0_register($18, 2, val)
2152 #define write_gc0_watchlo3(val)         __write_ulong_gc0_register($18, 3, val)
2153 #define write_gc0_watchlo4(val)         __write_ulong_gc0_register($18, 4, val)
2154 #define write_gc0_watchlo5(val)         __write_ulong_gc0_register($18, 5, val)
2155 #define write_gc0_watchlo6(val)         __write_ulong_gc0_register($18, 6, val)
2156 #define write_gc0_watchlo7(val)         __write_ulong_gc0_register($18, 7, val)
2157
2158 #define read_gc0_watchhi0()             __read_32bit_gc0_register($19, 0)
2159 #define read_gc0_watchhi1()             __read_32bit_gc0_register($19, 1)
2160 #define read_gc0_watchhi2()             __read_32bit_gc0_register($19, 2)
2161 #define read_gc0_watchhi3()             __read_32bit_gc0_register($19, 3)
2162 #define read_gc0_watchhi4()             __read_32bit_gc0_register($19, 4)
2163 #define read_gc0_watchhi5()             __read_32bit_gc0_register($19, 5)
2164 #define read_gc0_watchhi6()             __read_32bit_gc0_register($19, 6)
2165 #define read_gc0_watchhi7()             __read_32bit_gc0_register($19, 7)
2166 #define write_gc0_watchhi0(val)         __write_32bit_gc0_register($19, 0, val)
2167 #define write_gc0_watchhi1(val)         __write_32bit_gc0_register($19, 1, val)
2168 #define write_gc0_watchhi2(val)         __write_32bit_gc0_register($19, 2, val)
2169 #define write_gc0_watchhi3(val)         __write_32bit_gc0_register($19, 3, val)
2170 #define write_gc0_watchhi4(val)         __write_32bit_gc0_register($19, 4, val)
2171 #define write_gc0_watchhi5(val)         __write_32bit_gc0_register($19, 5, val)
2172 #define write_gc0_watchhi6(val)         __write_32bit_gc0_register($19, 6, val)
2173 #define write_gc0_watchhi7(val)         __write_32bit_gc0_register($19, 7, val)
2174
2175 #define read_gc0_xcontext()             __read_ulong_gc0_register($20, 0)
2176 #define write_gc0_xcontext(val)         __write_ulong_gc0_register($20, 0, val)
2177
2178 #define read_gc0_perfctrl0()            __read_32bit_gc0_register($25, 0)
2179 #define write_gc0_perfctrl0(val)        __write_32bit_gc0_register($25, 0, val)
2180 #define read_gc0_perfcntr0()            __read_32bit_gc0_register($25, 1)
2181 #define write_gc0_perfcntr0(val)        __write_32bit_gc0_register($25, 1, val)
2182 #define read_gc0_perfcntr0_64()         __read_64bit_gc0_register($25, 1)
2183 #define write_gc0_perfcntr0_64(val)     __write_64bit_gc0_register($25, 1, val)
2184 #define read_gc0_perfctrl1()            __read_32bit_gc0_register($25, 2)
2185 #define write_gc0_perfctrl1(val)        __write_32bit_gc0_register($25, 2, val)
2186 #define read_gc0_perfcntr1()            __read_32bit_gc0_register($25, 3)
2187 #define write_gc0_perfcntr1(val)        __write_32bit_gc0_register($25, 3, val)
2188 #define read_gc0_perfcntr1_64()         __read_64bit_gc0_register($25, 3)
2189 #define write_gc0_perfcntr1_64(val)     __write_64bit_gc0_register($25, 3, val)
2190 #define read_gc0_perfctrl2()            __read_32bit_gc0_register($25, 4)
2191 #define write_gc0_perfctrl2(val)        __write_32bit_gc0_register($25, 4, val)
2192 #define read_gc0_perfcntr2()            __read_32bit_gc0_register($25, 5)
2193 #define write_gc0_perfcntr2(val)        __write_32bit_gc0_register($25, 5, val)
2194 #define read_gc0_perfcntr2_64()         __read_64bit_gc0_register($25, 5)
2195 #define write_gc0_perfcntr2_64(val)     __write_64bit_gc0_register($25, 5, val)
2196 #define read_gc0_perfctrl3()            __read_32bit_gc0_register($25, 6)
2197 #define write_gc0_perfctrl3(val)        __write_32bit_gc0_register($25, 6, val)
2198 #define read_gc0_perfcntr3()            __read_32bit_gc0_register($25, 7)
2199 #define write_gc0_perfcntr3(val)        __write_32bit_gc0_register($25, 7, val)
2200 #define read_gc0_perfcntr3_64()         __read_64bit_gc0_register($25, 7)
2201 #define write_gc0_perfcntr3_64(val)     __write_64bit_gc0_register($25, 7, val)
2202
2203 #define read_gc0_errorepc()             __read_ulong_gc0_register($30, 0)
2204 #define write_gc0_errorepc(val)         __write_ulong_gc0_register($30, 0, val)
2205
2206 #define read_gc0_kscratch1()            __read_ulong_gc0_register($31, 2)
2207 #define read_gc0_kscratch2()            __read_ulong_gc0_register($31, 3)
2208 #define read_gc0_kscratch3()            __read_ulong_gc0_register($31, 4)
2209 #define read_gc0_kscratch4()            __read_ulong_gc0_register($31, 5)
2210 #define read_gc0_kscratch5()            __read_ulong_gc0_register($31, 6)
2211 #define read_gc0_kscratch6()            __read_ulong_gc0_register($31, 7)
2212 #define write_gc0_kscratch1(val)        __write_ulong_gc0_register($31, 2, val)
2213 #define write_gc0_kscratch2(val)        __write_ulong_gc0_register($31, 3, val)
2214 #define write_gc0_kscratch3(val)        __write_ulong_gc0_register($31, 4, val)
2215 #define write_gc0_kscratch4(val)        __write_ulong_gc0_register($31, 5, val)
2216 #define write_gc0_kscratch5(val)        __write_ulong_gc0_register($31, 6, val)
2217 #define write_gc0_kscratch6(val)        __write_ulong_gc0_register($31, 7, val)
2218
2219 /* Cavium OCTEON (cnMIPS) */
2220 #define read_gc0_cvmcount()             __read_ulong_gc0_register($9, 6)
2221 #define write_gc0_cvmcount(val)         __write_ulong_gc0_register($9, 6, val)
2222
2223 #define read_gc0_cvmctl()               __read_64bit_gc0_register($9, 7)
2224 #define write_gc0_cvmctl(val)           __write_64bit_gc0_register($9, 7, val)
2225
2226 #define read_gc0_cvmmemctl()            __read_64bit_gc0_register($11, 7)
2227 #define write_gc0_cvmmemctl(val)        __write_64bit_gc0_register($11, 7, val)
2228
2229 #define read_gc0_cvmmemctl2()           __read_64bit_gc0_register($16, 6)
2230 #define write_gc0_cvmmemctl2(val)       __write_64bit_gc0_register($16, 6, val)
2231
2232 /*
2233  * Macros to access the floating point coprocessor control registers
2234  */
2235 #define _read_32bit_cp1_register(source, gas_hardfloat)                 \
2236 ({                                                                      \
2237         unsigned int __res;                                             \
2238                                                                         \
2239         __asm__ __volatile__(                                           \
2240         "       .set    push                                    \n"     \
2241         "       .set    reorder                                 \n"     \
2242         "       # gas fails to assemble cfc1 for some archs,    \n"     \
2243         "       # like Octeon.                                  \n"     \
2244         "       .set    mips1                                   \n"     \
2245         "       "STR(gas_hardfloat)"                            \n"     \
2246         "       cfc1    %0,"STR(source)"                        \n"     \
2247         "       .set    pop                                     \n"     \
2248         : "=r" (__res));                                                \
2249         __res;                                                          \
2250 })
2251
2252 #define _write_32bit_cp1_register(dest, val, gas_hardfloat)             \
2253 do {                                                                    \
2254         __asm__ __volatile__(                                           \
2255         "       .set    push                                    \n"     \
2256         "       .set    reorder                                 \n"     \
2257         "       "STR(gas_hardfloat)"                            \n"     \
2258         "       ctc1    %0,"STR(dest)"                          \n"     \
2259         "       .set    pop                                     \n"     \
2260         : : "r" (val));                                                 \
2261 } while (0)
2262
2263 #ifdef GAS_HAS_SET_HARDFLOAT
2264 #define read_32bit_cp1_register(source)                                 \
2265         _read_32bit_cp1_register(source, .set hardfloat)
2266 #define write_32bit_cp1_register(dest, val)                             \
2267         _write_32bit_cp1_register(dest, val, .set hardfloat)
2268 #else
2269 #define read_32bit_cp1_register(source)                                 \
2270         _read_32bit_cp1_register(source, )
2271 #define write_32bit_cp1_register(dest, val)                             \
2272         _write_32bit_cp1_register(dest, val, )
2273 #endif
2274
2275 #ifdef HAVE_AS_DSP
2276 #define rddsp(mask)                                                     \
2277 ({                                                                      \
2278         unsigned int __dspctl;                                          \
2279                                                                         \
2280         __asm__ __volatile__(                                           \
2281         "       .set push                                       \n"     \
2282         "       .set dsp                                        \n"     \
2283         "       rddsp   %0, %x1                                 \n"     \
2284         "       .set pop                                        \n"     \
2285         : "=r" (__dspctl)                                               \
2286         : "i" (mask));                                                  \
2287         __dspctl;                                                       \
2288 })
2289
2290 #define wrdsp(val, mask)                                                \
2291 do {                                                                    \
2292         __asm__ __volatile__(                                           \
2293         "       .set push                                       \n"     \
2294         "       .set dsp                                        \n"     \
2295         "       wrdsp   %0, %x1                                 \n"     \
2296         "       .set pop                                        \n"     \
2297         :                                                               \
2298         : "r" (val), "i" (mask));                                       \
2299 } while (0)
2300
2301 #define mflo0()                                                         \
2302 ({                                                                      \
2303         long mflo0;                                                     \
2304         __asm__(                                                        \
2305         "       .set push                                       \n"     \
2306         "       .set dsp                                        \n"     \
2307         "       mflo %0, $ac0                                   \n"     \
2308         "       .set pop                                        \n"     \
2309         : "=r" (mflo0));                                                \
2310         mflo0;                                                          \
2311 })
2312
2313 #define mflo1()                                                         \
2314 ({                                                                      \
2315         long mflo1;                                                     \
2316         __asm__(                                                        \
2317         "       .set push                                       \n"     \
2318         "       .set dsp                                        \n"     \
2319         "       mflo %0, $ac1                                   \n"     \
2320         "       .set pop                                        \n"     \
2321         : "=r" (mflo1));                                                \
2322         mflo1;                                                          \
2323 })
2324
2325 #define mflo2()                                                         \
2326 ({                                                                      \
2327         long mflo2;                                                     \
2328         __asm__(                                                        \
2329         "       .set push                                       \n"     \
2330         "       .set dsp                                        \n"     \
2331         "       mflo %0, $ac2                                   \n"     \
2332         "       .set pop                                        \n"     \
2333         : "=r" (mflo2));                                                \
2334         mflo2;                                                          \
2335 })
2336
2337 #define mflo3()                                                         \
2338 ({                                                                      \
2339         long mflo3;                                                     \
2340         __asm__(                                                        \
2341         "       .set push                                       \n"     \
2342         "       .set dsp                                        \n"     \
2343         "       mflo %0, $ac3                                   \n"     \
2344         "       .set pop                                        \n"     \
2345         : "=r" (mflo3));                                                \
2346         mflo3;                                                          \
2347 })
2348
2349 #define mfhi0()                                                         \
2350 ({                                                                      \
2351         long mfhi0;                                                     \
2352         __asm__(                                                        \
2353         "       .set push                                       \n"     \
2354         "       .set dsp                                        \n"     \
2355         "       mfhi %0, $ac0                                   \n"     \
2356         "       .set pop                                        \n"     \
2357         : "=r" (mfhi0));                                                \
2358         mfhi0;                                                          \
2359 })
2360
2361 #define mfhi1()                                                         \
2362 ({                                                                      \
2363         long mfhi1;                                                     \
2364         __asm__(                                                        \
2365         "       .set push                                       \n"     \
2366         "       .set dsp                                        \n"     \
2367         "       mfhi %0, $ac1                                   \n"     \
2368         "       .set pop                                        \n"     \
2369         : "=r" (mfhi1));                                                \
2370         mfhi1;                                                          \
2371 })
2372
2373 #define mfhi2()                                                         \
2374 ({                                                                      \
2375         long mfhi2;                                                     \
2376         __asm__(                                                        \
2377         "       .set push                                       \n"     \
2378         "       .set dsp                                        \n"     \
2379         "       mfhi %0, $ac2                                   \n"     \
2380         "       .set pop                                        \n"     \
2381         : "=r" (mfhi2));                                                \
2382         mfhi2;                                                          \
2383 })
2384
2385 #define mfhi3()                                                         \
2386 ({                                                                      \
2387         long mfhi3;                                                     \
2388         __asm__(                                                        \
2389         "       .set push                                       \n"     \
2390         "       .set dsp                                        \n"     \
2391         "       mfhi %0, $ac3                                   \n"     \
2392         "       .set pop                                        \n"     \
2393         : "=r" (mfhi3));                                                \
2394         mfhi3;                                                          \
2395 })
2396
2397
2398 #define mtlo0(x)                                                        \
2399 ({                                                                      \
2400         __asm__(                                                        \
2401         "       .set push                                       \n"     \
2402         "       .set dsp                                        \n"     \
2403         "       mtlo %0, $ac0                                   \n"     \
2404         "       .set pop                                        \n"     \
2405         :                                                               \
2406         : "r" (x));                                                     \
2407 })
2408
2409 #define mtlo1(x)                                                        \
2410 ({                                                                      \
2411         __asm__(                                                        \
2412         "       .set push                                       \n"     \
2413         "       .set dsp                                        \n"     \
2414         "       mtlo %0, $ac1                                   \n"     \
2415         "       .set pop                                        \n"     \
2416         :                                                               \
2417         : "r" (x));                                                     \
2418 })
2419
2420 #define mtlo2(x)                                                        \
2421 ({                                                                      \
2422         __asm__(                                                        \
2423         "       .set push                                       \n"     \
2424         "       .set dsp                                        \n"     \
2425         "       mtlo %0, $ac2                                   \n"     \
2426         "       .set pop                                        \n"     \
2427         :                                                               \
2428         : "r" (x));                                                     \
2429 })
2430
2431 #define mtlo3(x)                                                        \
2432 ({                                                                      \
2433         __asm__(                                                        \
2434         "       .set push                                       \n"     \
2435         "       .set dsp                                        \n"     \
2436         "       mtlo %0, $ac3                                   \n"     \
2437         "       .set pop                                        \n"     \
2438         :                                                               \
2439         : "r" (x));                                                     \
2440 })
2441
2442 #define mthi0(x)                                                        \
2443 ({                                                                      \
2444         __asm__(                                                        \
2445         "       .set push                                       \n"     \
2446         "       .set dsp                                        \n"     \
2447         "       mthi %0, $ac0                                   \n"     \
2448         "       .set pop                                        \n"     \
2449         :                                                               \
2450         : "r" (x));                                                     \
2451 })
2452
2453 #define mthi1(x)                                                        \
2454 ({                                                                      \
2455         __asm__(                                                        \
2456         "       .set push                                       \n"     \
2457         "       .set dsp                                        \n"     \
2458         "       mthi %0, $ac1                                   \n"     \
2459         "       .set pop                                        \n"     \
2460         :                                                               \
2461         : "r" (x));                                                     \
2462 })
2463
2464 #define mthi2(x)                                                        \
2465 ({                                                                      \
2466         __asm__(                                                        \
2467         "       .set push                                       \n"     \
2468         "       .set dsp                                        \n"     \
2469         "       mthi %0, $ac2                                   \n"     \
2470         "       .set pop                                        \n"     \
2471         :                                                               \
2472         : "r" (x));                                                     \
2473 })
2474
2475 #define mthi3(x)                                                        \
2476 ({                                                                      \
2477         __asm__(                                                        \
2478         "       .set push                                       \n"     \
2479         "       .set dsp                                        \n"     \
2480         "       mthi %0, $ac3                                   \n"     \
2481         "       .set pop                                        \n"     \
2482         :                                                               \
2483         : "r" (x));                                                     \
2484 })
2485
2486 #else
2487
2488 #define rddsp(mask)                                                     \
2489 ({                                                                      \
2490         unsigned int __res;                                             \
2491                                                                         \
2492         __asm__ __volatile__(                                           \
2493         "       .set    push                                    \n"     \
2494         "       .set    noat                                    \n"     \
2495         "       # rddsp $1, %x1                                 \n"     \
2496         _ASM_INSN_IF_MIPS(0x7c000cb8 | (%x1 << 16))                     \
2497         _ASM_INSN32_IF_MM(0x0020067c | (%x1 << 14))                     \
2498         "       move    %0, $1                                  \n"     \
2499         "       .set    pop                                     \n"     \
2500         : "=r" (__res)                                                  \
2501         : "i" (mask));                                                  \
2502         __res;                                                          \
2503 })
2504
2505 #define wrdsp(val, mask)                                                \
2506 do {                                                                    \
2507         __asm__ __volatile__(                                           \
2508         "       .set    push                                    \n"     \
2509         "       .set    noat                                    \n"     \
2510         "       move    $1, %0                                  \n"     \
2511         "       # wrdsp $1, %x1                                 \n"     \
2512         _ASM_INSN_IF_MIPS(0x7c2004f8 | (%x1 << 11))                     \
2513         _ASM_INSN32_IF_MM(0x0020167c | (%x1 << 14))                     \
2514         "       .set    pop                                     \n"     \
2515         :                                                               \
2516         : "r" (val), "i" (mask));                                       \
2517 } while (0)
2518
2519 #define _dsp_mfxxx(ins)                                                 \
2520 ({                                                                      \
2521         unsigned long __treg;                                           \
2522                                                                         \
2523         __asm__ __volatile__(                                           \
2524         "       .set    push                                    \n"     \
2525         "       .set    noat                                    \n"     \
2526         _ASM_INSN_IF_MIPS(0x00000810 | %X1)                             \
2527         _ASM_INSN32_IF_MM(0x0001007c | %x1)                             \
2528         "       move    %0, $1                                  \n"     \
2529         "       .set    pop                                     \n"     \
2530         : "=r" (__treg)                                                 \
2531         : "i" (ins));                                                   \
2532         __treg;                                                         \
2533 })
2534
2535 #define _dsp_mtxxx(val, ins)                                            \
2536 do {                                                                    \
2537         __asm__ __volatile__(                                           \
2538         "       .set    push                                    \n"     \
2539         "       .set    noat                                    \n"     \
2540         "       move    $1, %0                                  \n"     \
2541         _ASM_INSN_IF_MIPS(0x00200011 | %X1)                             \
2542         _ASM_INSN32_IF_MM(0x0001207c | %x1)                             \
2543         "       .set    pop                                     \n"     \
2544         :                                                               \
2545         : "r" (val), "i" (ins));                                        \
2546 } while (0)
2547
2548 #ifdef CONFIG_CPU_MICROMIPS
2549
2550 #define _dsp_mflo(reg) _dsp_mfxxx((reg << 14) | 0x1000)
2551 #define _dsp_mfhi(reg) _dsp_mfxxx((reg << 14) | 0x0000)
2552
2553 #define _dsp_mtlo(val, reg) _dsp_mtxxx(val, ((reg << 14) | 0x1000))
2554 #define _dsp_mthi(val, reg) _dsp_mtxxx(val, ((reg << 14) | 0x0000))
2555
2556 #else  /* !CONFIG_CPU_MICROMIPS */
2557
2558 #define _dsp_mflo(reg) _dsp_mfxxx((reg << 21) | 0x0002)
2559 #define _dsp_mfhi(reg) _dsp_mfxxx((reg << 21) | 0x0000)
2560
2561 #define _dsp_mtlo(val, reg) _dsp_mtxxx(val, ((reg << 11) | 0x0002))
2562 #define _dsp_mthi(val, reg) _dsp_mtxxx(val, ((reg << 11) | 0x0000))
2563
2564 #endif /* CONFIG_CPU_MICROMIPS */
2565
2566 #define mflo0() _dsp_mflo(0)
2567 #define mflo1() _dsp_mflo(1)
2568 #define mflo2() _dsp_mflo(2)
2569 #define mflo3() _dsp_mflo(3)
2570
2571 #define mfhi0() _dsp_mfhi(0)
2572 #define mfhi1() _dsp_mfhi(1)
2573 #define mfhi2() _dsp_mfhi(2)
2574 #define mfhi3() _dsp_mfhi(3)
2575
2576 #define mtlo0(x) _dsp_mtlo(x, 0)
2577 #define mtlo1(x) _dsp_mtlo(x, 1)
2578 #define mtlo2(x) _dsp_mtlo(x, 2)
2579 #define mtlo3(x) _dsp_mtlo(x, 3)
2580
2581 #define mthi0(x) _dsp_mthi(x, 0)
2582 #define mthi1(x) _dsp_mthi(x, 1)
2583 #define mthi2(x) _dsp_mthi(x, 2)
2584 #define mthi3(x) _dsp_mthi(x, 3)
2585
2586 #endif
2587
2588 /*
2589  * TLB operations.
2590  *
2591  * It is responsibility of the caller to take care of any TLB hazards.
2592  */
2593 static inline void tlb_probe(void)
2594 {
2595         __asm__ __volatile__(
2596                 ".set noreorder\n\t"
2597                 "tlbp\n\t"
2598                 ".set reorder");
2599 }
2600
2601 static inline void tlb_read(void)
2602 {
2603 #if MIPS34K_MISSED_ITLB_WAR
2604         int res = 0;
2605
2606         __asm__ __volatile__(
2607         "       .set    push                                    \n"
2608         "       .set    noreorder                               \n"
2609         "       .set    noat                                    \n"
2610         "       .set    mips32r2                                \n"
2611         "       .word   0x41610001              # dvpe $1       \n"
2612         "       move    %0, $1                                  \n"
2613         "       ehb                                             \n"
2614         "       .set    pop                                     \n"
2615         : "=r" (res));
2616
2617         instruction_hazard();
2618 #endif
2619
2620         __asm__ __volatile__(
2621                 ".set noreorder\n\t"
2622                 "tlbr\n\t"
2623                 ".set reorder");
2624
2625 #if MIPS34K_MISSED_ITLB_WAR
2626         if ((res & _ULCAST_(1)))
2627                 __asm__ __volatile__(
2628                 "       .set    push                            \n"
2629                 "       .set    noreorder                       \n"
2630                 "       .set    noat                            \n"
2631                 "       .set    mips32r2                        \n"
2632                 "       .word   0x41600021      # evpe          \n"
2633                 "       ehb                                     \n"
2634                 "       .set    pop                             \n");
2635 #endif
2636 }
2637
2638 static inline void tlb_write_indexed(void)
2639 {
2640         __asm__ __volatile__(
2641                 ".set noreorder\n\t"
2642                 "tlbwi\n\t"
2643                 ".set reorder");
2644 }
2645
2646 static inline void tlb_write_random(void)
2647 {
2648         __asm__ __volatile__(
2649                 ".set noreorder\n\t"
2650                 "tlbwr\n\t"
2651                 ".set reorder");
2652 }
2653
2654 /*
2655  * Guest TLB operations.
2656  *
2657  * It is responsibility of the caller to take care of any TLB hazards.
2658  */
2659 static inline void guest_tlb_probe(void)
2660 {
2661         __asm__ __volatile__(
2662                 ".set push\n\t"
2663                 ".set noreorder\n\t"
2664                 _ASM_SET_VIRT
2665                 "tlbgp\n\t"
2666                 ".set pop");
2667 }
2668
2669 static inline void guest_tlb_read(void)
2670 {
2671         __asm__ __volatile__(
2672                 ".set push\n\t"
2673                 ".set noreorder\n\t"
2674                 _ASM_SET_VIRT
2675                 "tlbgr\n\t"
2676                 ".set pop");
2677 }
2678
2679 static inline void guest_tlb_write_indexed(void)
2680 {
2681         __asm__ __volatile__(
2682                 ".set push\n\t"
2683                 ".set noreorder\n\t"
2684                 _ASM_SET_VIRT
2685                 "tlbgwi\n\t"
2686                 ".set pop");
2687 }
2688
2689 static inline void guest_tlb_write_random(void)
2690 {
2691         __asm__ __volatile__(
2692                 ".set push\n\t"
2693                 ".set noreorder\n\t"
2694                 _ASM_SET_VIRT
2695                 "tlbgwr\n\t"
2696                 ".set pop");
2697 }
2698
2699 /*
2700  * Guest TLB Invalidate Flush
2701  */
2702 static inline void guest_tlbinvf(void)
2703 {
2704         __asm__ __volatile__(
2705                 ".set push\n\t"
2706                 ".set noreorder\n\t"
2707                 _ASM_SET_VIRT
2708                 "tlbginvf\n\t"
2709                 ".set pop");
2710 }
2711
2712 /*
2713  * Manipulate bits in a register.
2714  */
2715 #define __BUILD_SET_COMMON(name)                                \
2716 static inline unsigned int                                      \
2717 set_##name(unsigned int set)                                    \
2718 {                                                               \
2719         unsigned int res, new;                                  \
2720                                                                 \
2721         res = read_##name();                                    \
2722         new = res | set;                                        \
2723         write_##name(new);                                      \
2724                                                                 \
2725         return res;                                             \
2726 }                                                               \
2727                                                                 \
2728 static inline unsigned int                                      \
2729 clear_##name(unsigned int clear)                                \
2730 {                                                               \
2731         unsigned int res, new;                                  \
2732                                                                 \
2733         res = read_##name();                                    \
2734         new = res & ~clear;                                     \
2735         write_##name(new);                                      \
2736                                                                 \
2737         return res;                                             \
2738 }                                                               \
2739                                                                 \
2740 static inline unsigned int                                      \
2741 change_##name(unsigned int change, unsigned int val)            \
2742 {                                                               \
2743         unsigned int res, new;                                  \
2744                                                                 \
2745         res = read_##name();                                    \
2746         new = res & ~change;                                    \
2747         new |= (val & change);                                  \
2748         write_##name(new);                                      \
2749                                                                 \
2750         return res;                                             \
2751 }
2752
2753 /*
2754  * Manipulate bits in a c0 register.
2755  */
2756 #define __BUILD_SET_C0(name)    __BUILD_SET_COMMON(c0_##name)
2757
2758 __BUILD_SET_C0(status)
2759 __BUILD_SET_C0(cause)
2760 __BUILD_SET_C0(config)
2761 __BUILD_SET_C0(config5)
2762 __BUILD_SET_C0(intcontrol)
2763 __BUILD_SET_C0(intctl)
2764 __BUILD_SET_C0(srsmap)
2765 __BUILD_SET_C0(pagegrain)
2766 __BUILD_SET_C0(guestctl0)
2767 __BUILD_SET_C0(guestctl0ext)
2768 __BUILD_SET_C0(guestctl1)
2769 __BUILD_SET_C0(guestctl2)
2770 __BUILD_SET_C0(guestctl3)
2771 __BUILD_SET_C0(brcm_config_0)
2772 __BUILD_SET_C0(brcm_bus_pll)
2773 __BUILD_SET_C0(brcm_reset)
2774 __BUILD_SET_C0(brcm_cmt_intr)
2775 __BUILD_SET_C0(brcm_cmt_ctrl)
2776 __BUILD_SET_C0(brcm_config)
2777 __BUILD_SET_C0(brcm_mode)
2778
2779 /*
2780  * Manipulate bits in a guest c0 register.
2781  */
2782 #define __BUILD_SET_GC0(name)   __BUILD_SET_COMMON(gc0_##name)
2783
2784 __BUILD_SET_GC0(wired)
2785 __BUILD_SET_GC0(status)
2786 __BUILD_SET_GC0(cause)
2787 __BUILD_SET_GC0(ebase)
2788 __BUILD_SET_GC0(config1)
2789
2790 /*
2791  * Return low 10 bits of ebase.
2792  * Note that under KVM (MIPSVZ) this returns vcpu id.
2793  */
2794 static inline unsigned int get_ebase_cpunum(void)
2795 {
2796         return read_c0_ebase() & MIPS_EBASE_CPUNUM;
2797 }
2798
2799 #endif /* !__ASSEMBLY__ */
2800
2801 #endif /* _ASM_MIPSREGS_H */