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 #else
  38 #define _ULCAST_ (unsigned long)
  39 #endif
  40
  41 /*
  42  * Coprocessor 0 register names
  43  */
  44 #define CP0_INDEX $0
  45 #define CP0_RANDOM $1
  46 #define CP0_ENTRYLO0 $2
  47 #define CP0_ENTRYLO1 $3
  48 #define CP0_CONF $3
  49 #define CP0_CONTEXT $4
  50 #define CP0_PAGEMASK $5
  51 #define CP0_WIRED $6
  52 #define CP0_INFO $7
  53 #define CP0_BADVADDR $8
  54 #define CP0_COUNT $9
  55 #define CP0_ENTRYHI $10
  56 #define CP0_COMPARE $11
  57 #define CP0_STATUS $12
  58 #define CP0_CAUSE $13
  59 #define CP0_EPC $14
  60 #define CP0_PRID $15
  61 #define CP0_CONFIG $16
  62 #define CP0_LLADDR $17
  63 #define CP0_WATCHLO $18
  64 #define CP0_WATCHHI $19
  65 #define CP0_XCONTEXT $20
  66 #define CP0_FRAMEMASK $21
  67 #define CP0_DIAGNOSTIC $22
  68 #define CP0_DEBUG $23
  69 #define CP0_DEPC $24
  70 #define CP0_PERFORMANCE $25
  71 #define CP0_ECC $26
  72 #define CP0_CACHEERR $27
  73 #define CP0_TAGLO $28
  74 #define CP0_TAGHI $29
  75 #define CP0_ERROREPC $30
  76 #define CP0_DESAVE $31
  77
  78 /*
  79  * R4640/R4650 cp0 register names.  These registers are listed
  80  * here only for completeness; without MMU these CPUs are not useable
  81  * by Linux.  A future ELKS port might take make Linux run on them
  82  * though ...
  83  */
  84 #define CP0_IBASE $0
  85 #define CP0_IBOUND $1
  86 #define CP0_DBASE $2
  87 #define CP0_DBOUND $3
  88 #define CP0_CALG $17
  89 #define CP0_IWATCH $18
  90 #define CP0_DWATCH $19
  91
  92 /*
  93  * Coprocessor 0 Set 1 register names
  94  */
  95 #define CP0_S1_DERRADDR0  $26
  96 #define CP0_S1_DERRADDR1  $27
  97 #define CP0_S1_INTCONTROL $20
  98
  99 /*
 100  * Coprocessor 0 Set 2 register names
 101  */
 102 #define CP0_S2_SRSCTL     $12   /* MIPSR2 */
 103
 104 /*
 105  * Coprocessor 0 Set 3 register names
 106  */
 107 #define CP0_S3_SRSMAP     $12   /* MIPSR2 */
 108
 109 /*
 110  *  TX39 Series
 111  */
 112 #define CP0_TX39_CACHE  $7
 113
 114 /*
 115  * Coprocessor 1 (FPU) register names
 116  */
 117 #define CP1_REVISION   $0
 118 #define CP1_STATUS     $31
 119
 120 /*
 121  * FPU Status Register Values
 122  */
 123 /*
 124  * Status Register Values
 125  */
 126
 127 #define FPU_CSR_FLUSH   0x01000000      /* flush denormalised results to 0 */
 128 #define FPU_CSR_COND    0x00800000      /* $fcc0 */
 129 #define FPU_CSR_COND0   0x00800000      /* $fcc0 */
 130 #define FPU_CSR_COND1   0x02000000      /* $fcc1 */
 131 #define FPU_CSR_COND2   0x04000000      /* $fcc2 */
 132 #define FPU_CSR_COND3   0x08000000      /* $fcc3 */
 133 #define FPU_CSR_COND4   0x10000000      /* $fcc4 */
 134 #define FPU_CSR_COND5   0x20000000      /* $fcc5 */
 135 #define FPU_CSR_COND6   0x40000000      /* $fcc6 */
 136 #define FPU_CSR_COND7   0x80000000      /* $fcc7 */
 137
 138 /*
 139  * Bits 18 - 20 of the FPU Status Register will be read as 0,
 140  * and should be written as zero.
 141  */
 142 #define FPU_CSR_RSVD    0x001c0000
 143
 144 /*
 145  * X the exception cause indicator
 146  * E the exception enable
 147  * S the sticky/flag bit
 148 */
 149 #define FPU_CSR_ALL_X   0x0003f000
 150 #define FPU_CSR_UNI_X   0x00020000
 151 #define FPU_CSR_INV_X   0x00010000
 152 #define FPU_CSR_DIV_X   0x00008000
 153 #define FPU_CSR_OVF_X   0x00004000
 154 #define FPU_CSR_UDF_X   0x00002000
 155 #define FPU_CSR_INE_X   0x00001000
 156
 157 #define FPU_CSR_ALL_E   0x00000f80
 158 #define FPU_CSR_INV_E   0x00000800
 159 #define FPU_CSR_DIV_E   0x00000400
 160 #define FPU_CSR_OVF_E   0x00000200
 161 #define FPU_CSR_UDF_E   0x00000100
 162 #define FPU_CSR_INE_E   0x00000080
 163
 164 #define FPU_CSR_ALL_S   0x0000007c
 165 #define FPU_CSR_INV_S   0x00000040
 166 #define FPU_CSR_DIV_S   0x00000020
 167 #define FPU_CSR_OVF_S   0x00000010
 168 #define FPU_CSR_UDF_S   0x00000008
 169 #define FPU_CSR_INE_S   0x00000004
 170
 171 /* Bits 0 and 1 of FPU Status Register specify the rounding mode */
 172 #define FPU_CSR_RM      0x00000003
 173 #define FPU_CSR_RN      0x0     /* nearest */
 174 #define FPU_CSR_RZ      0x1     /* towards zero */
 175 #define FPU_CSR_RU      0x2     /* towards +Infinity */
 176 #define FPU_CSR_RD      0x3     /* towards -Infinity */
 177
 178
 179 /*
 180  * Values for PageMask register
 181  */
 182 #ifdef CONFIG_CPU_VR41XX
 183
 184 /* Why doesn't stupidity hurt ... */
 185
 186 #define PM_1K           0x00000000
 187 #define PM_4K           0x00001800
 188 #define PM_16K          0x00007800
 189 #define PM_64K          0x0001f800
 190 #define PM_256K         0x0007f800
 191
 192 #else
 193
 194 #define PM_4K           0x00000000
 195 #define PM_8K           0x00002000
 196 #define PM_16K          0x00006000
 197 #define PM_32K          0x0000e000
 198 #define PM_64K          0x0001e000
 199 #define PM_128K         0x0003e000
 200 #define PM_256K         0x0007e000
 201 #define PM_512K         0x000fe000
 202 #define PM_1M           0x001fe000
 203 #define PM_2M           0x003fe000
 204 #define PM_4M           0x007fe000
 205 #define PM_8M           0x00ffe000
 206 #define PM_16M          0x01ffe000
 207 #define PM_32M          0x03ffe000
 208 #define PM_64M          0x07ffe000
 209 #define PM_256M         0x1fffe000
 210 #define PM_1G           0x7fffe000
 211
 212 #endif
 213
 214 /*
 215  * Default page size for a given kernel configuration
 216  */
 217 #ifdef CONFIG_PAGE_SIZE_4KB
 218 #define PM_DEFAULT_MASK PM_4K
 219 #elif defined(CONFIG_PAGE_SIZE_8KB)
 220 #define PM_DEFAULT_MASK PM_8K
 221 #elif defined(CONFIG_PAGE_SIZE_16KB)
 222 #define PM_DEFAULT_MASK PM_16K
 223 #elif defined(CONFIG_PAGE_SIZE_32KB)
 224 #define PM_DEFAULT_MASK PM_32K
 225 #elif defined(CONFIG_PAGE_SIZE_64KB)
 226 #define PM_DEFAULT_MASK PM_64K
 227 #else
 228 #error Bad page size configuration!
 229 #endif
 230
 231 /*
 232  * Default huge tlb size for a given kernel configuration
 233  */
 234 #ifdef CONFIG_PAGE_SIZE_4KB
 235 #define PM_HUGE_MASK    PM_1M
 236 #elif defined(CONFIG_PAGE_SIZE_8KB)
 237 #define PM_HUGE_MASK    PM_4M
 238 #elif defined(CONFIG_PAGE_SIZE_16KB)
 239 #define PM_HUGE_MASK    PM_16M
 240 #elif defined(CONFIG_PAGE_SIZE_32KB)
 241 #define PM_HUGE_MASK    PM_64M
 242 #elif defined(CONFIG_PAGE_SIZE_64KB)
 243 #define PM_HUGE_MASK    PM_256M
 244 #elif defined(CONFIG_MIPS_HUGE_TLB_SUPPORT)
 245 #error Bad page size configuration for hugetlbfs!
 246 #endif
 247
 248 /*
 249  * Values used for computation of new tlb entries
 250  */
 251 #define PL_4K           12
 252 #define PL_16K          14
 253 #define PL_64K          16
 254 #define PL_256K         18
 255 #define PL_1M           20
 256 #define PL_4M           22
 257 #define PL_16M          24
 258 #define PL_64M          26
 259 #define PL_256M         28
 260
 261 /*
 262  * PageGrain bits
 263  */
 264 #define PG_RIE          (_ULCAST_(1) <<  31)
 265 #define PG_XIE          (_ULCAST_(1) <<  30)
 266 #define PG_ELPA         (_ULCAST_(1) <<  29)
 267 #define PG_ESP          (_ULCAST_(1) <<  28)
 268
 269 /*
 270  * R4x00 interrupt enable / cause bits
 271  */
 272 #define IE_SW0          (_ULCAST_(1) <<  8)
 273 #define IE_SW1          (_ULCAST_(1) <<  9)
 274 #define IE_IRQ0         (_ULCAST_(1) << 10)
 275 #define IE_IRQ1         (_ULCAST_(1) << 11)
 276 #define IE_IRQ2         (_ULCAST_(1) << 12)
 277 #define IE_IRQ3         (_ULCAST_(1) << 13)
 278 #define IE_IRQ4         (_ULCAST_(1) << 14)
 279 #define IE_IRQ5         (_ULCAST_(1) << 15)
 280
 281 /*
 282  * R4x00 interrupt cause bits
 283  */
 284 #define C_SW0           (_ULCAST_(1) <<  8)
 285 #define C_SW1           (_ULCAST_(1) <<  9)
 286 #define C_IRQ0          (_ULCAST_(1) << 10)
 287 #define C_IRQ1          (_ULCAST_(1) << 11)
 288 #define C_IRQ2          (_ULCAST_(1) << 12)
 289 #define C_IRQ3          (_ULCAST_(1) << 13)
 290 #define C_IRQ4          (_ULCAST_(1) << 14)
 291 #define C_IRQ5          (_ULCAST_(1) << 15)
 292
 293 /*
 294  * Bitfields in the R4xx0 cp0 status register
 295  */
 296 #define ST0_IE                  0x00000001
 297 #define ST0_EXL                 0x00000002
 298 #define ST0_ERL                 0x00000004
 299 #define ST0_KSU                 0x00000018
 300 #  define KSU_USER              0x00000010
 301 #  define KSU_SUPERVISOR        0x00000008
 302 #  define KSU_KERNEL            0x00000000
 303 #define ST0_UX                  0x00000020
 304 #define ST0_SX                  0x00000040
 305 #define ST0_KX                  0x00000080
 306 #define ST0_DE                  0x00010000
 307 #define ST0_CE                  0x00020000
 308
 309 /*
 310  * Setting c0_status.co enables Hit_Writeback and Hit_Writeback_Invalidate
 311  * cacheops in userspace.  This bit exists only on RM7000 and RM9000
 312  * processors.
 313  */
 314 #define ST0_CO                  0x08000000
 315
 316 /*
 317  * Bitfields in the R[23]000 cp0 status register.
 318  */
 319 #define ST0_IEC                 0x00000001
 320 #define ST0_KUC                 0x00000002
 321 #define ST0_IEP                 0x00000004
 322 #define ST0_KUP                 0x00000008
 323 #define ST0_IEO                 0x00000010
 324 #define ST0_KUO                 0x00000020
 325 /* bits 6 & 7 are reserved on R[23]000 */
 326 #define ST0_ISC                 0x00010000
 327 #define ST0_SWC                 0x00020000
 328 #define ST0_CM                  0x00080000
 329
 330 /*
 331  * Bits specific to the R4640/R4650
 332  */
 333 #define ST0_UM                  (_ULCAST_(1) <<  4)
 334 #define ST0_IL                  (_ULCAST_(1) << 23)
 335 #define ST0_DL                  (_ULCAST_(1) << 24)
 336
 337 /*
 338  * Enable the MIPS MDMX and DSP ASEs
 339  */
 340 #define ST0_MX                  0x01000000
 341
 342 /*
 343  * Bitfields in the TX39 family CP0 Configuration Register 3
 344  */
 345 #define TX39_CONF_ICS_SHIFT     19
 346 #define TX39_CONF_ICS_MASK      0x00380000
 347 #define TX39_CONF_ICS_1KB       0x00000000
 348 #define TX39_CONF_ICS_2KB       0x00080000
 349 #define TX39_CONF_ICS_4KB       0x00100000
 350 #define TX39_CONF_ICS_8KB       0x00180000
 351 #define TX39_CONF_ICS_16KB      0x00200000
 352
 353 #define TX39_CONF_DCS_SHIFT     16
 354 #define TX39_CONF_DCS_MASK      0x00070000
 355 #define TX39_CONF_DCS_1KB       0x00000000
 356 #define TX39_CONF_DCS_2KB       0x00010000
 357 #define TX39_CONF_DCS_4KB       0x00020000
 358 #define TX39_CONF_DCS_8KB       0x00030000
 359 #define TX39_CONF_DCS_16KB      0x00040000
 360
 361 #define TX39_CONF_CWFON         0x00004000
 362 #define TX39_CONF_WBON          0x00002000
 363 #define TX39_CONF_RF_SHIFT      10
 364 #define TX39_CONF_RF_MASK       0x00000c00
 365 #define TX39_CONF_DOZE          0x00000200
 366 #define TX39_CONF_HALT          0x00000100
 367 #define TX39_CONF_LOCK          0x00000080
 368 #define TX39_CONF_ICE           0x00000020
 369 #define TX39_CONF_DCE           0x00000010
 370 #define TX39_CONF_IRSIZE_SHIFT  2
 371 #define TX39_CONF_IRSIZE_MASK   0x0000000c
 372 #define TX39_CONF_DRSIZE_SHIFT  0
 373 #define TX39_CONF_DRSIZE_MASK   0x00000003
 374
 375 /*
 376  * Status register bits available in all MIPS CPUs.
 377  */
 378 #define ST0_IM                  0x0000ff00
 379 #define  STATUSB_IP0            8
 380 #define  STATUSF_IP0            (_ULCAST_(1) <<  8)
 381 #define  STATUSB_IP1            9
 382 #define  STATUSF_IP1            (_ULCAST_(1) <<  9)
 383 #define  STATUSB_IP2            10
 384 #define  STATUSF_IP2            (_ULCAST_(1) << 10)
 385 #define  STATUSB_IP3            11
 386 #define  STATUSF_IP3            (_ULCAST_(1) << 11)
 387 #define  STATUSB_IP4            12
 388 #define  STATUSF_IP4            (_ULCAST_(1) << 12)
 389 #define  STATUSB_IP5            13
 390 #define  STATUSF_IP5            (_ULCAST_(1) << 13)
 391 #define  STATUSB_IP6            14
 392 #define  STATUSF_IP6            (_ULCAST_(1) << 14)
 393 #define  STATUSB_IP7            15
 394 #define  STATUSF_IP7            (_ULCAST_(1) << 15)
 395 #define  STATUSB_IP8            0
 396 #define  STATUSF_IP8            (_ULCAST_(1) <<  0)
 397 #define  STATUSB_IP9            1
 398 #define  STATUSF_IP9            (_ULCAST_(1) <<  1)
 399 #define  STATUSB_IP10           2
 400 #define  STATUSF_IP10           (_ULCAST_(1) <<  2)
 401 #define  STATUSB_IP11           3
 402 #define  STATUSF_IP11           (_ULCAST_(1) <<  3)
 403 #define  STATUSB_IP12           4
 404 #define  STATUSF_IP12           (_ULCAST_(1) <<  4)
 405 #define  STATUSB_IP13           5
 406 #define  STATUSF_IP13           (_ULCAST_(1) <<  5)
 407 #define  STATUSB_IP14           6
 408 #define  STATUSF_IP14           (_ULCAST_(1) <<  6)
 409 #define  STATUSB_IP15           7
 410 #define  STATUSF_IP15           (_ULCAST_(1) <<  7)
 411 #define ST0_CH                  0x00040000
 412 #define ST0_NMI                 0x00080000
 413 #define ST0_SR                  0x00100000
 414 #define ST0_TS                  0x00200000
 415 #define ST0_BEV                 0x00400000
 416 #define ST0_RE                  0x02000000
 417 #define ST0_FR                  0x04000000
 418 #define ST0_CU                  0xf0000000
 419 #define ST0_CU0                 0x10000000
 420 #define ST0_CU1                 0x20000000
 421 #define ST0_CU2                 0x40000000
 422 #define ST0_CU3                 0x80000000
 423 #define ST0_XX                  0x80000000      /* MIPS IV naming */
 424
 425 /*
 426  * Bitfields and bit numbers in the coprocessor 0 IntCtl register. (MIPSR2)
 427  *
 428  * Refer to your MIPS R4xx0 manual, chapter 5 for explanation.
 429  */
 430 #define INTCTLB_IPPCI           26
 431 #define INTCTLF_IPPCI           (_ULCAST_(7) << INTCTLB_IPPCI)
 432 #define INTCTLB_IPTI            29
 433 #define INTCTLF_IPTI            (_ULCAST_(7) << INTCTLB_IPTI)
 434
 435 /*
 436  * Bitfields and bit numbers in the coprocessor 0 cause register.
 437  *
 438  * Refer to your MIPS R4xx0 manual, chapter 5 for explanation.
 439  */
 440 #define  CAUSEB_EXCCODE         2
 441 #define  CAUSEF_EXCCODE         (_ULCAST_(31)  <<  2)
 442 #define  CAUSEB_IP              8
 443 #define  CAUSEF_IP              (_ULCAST_(255) <<  8)
 444 #define  CAUSEB_IP0             8
 445 #define  CAUSEF_IP0             (_ULCAST_(1)   <<  8)
 446 #define  CAUSEB_IP1             9
 447 #define  CAUSEF_IP1             (_ULCAST_(1)   <<  9)
 448 #define  CAUSEB_IP2             10
 449 #define  CAUSEF_IP2             (_ULCAST_(1)   << 10)
 450 #define  CAUSEB_IP3             11
 451 #define  CAUSEF_IP3             (_ULCAST_(1)   << 11)
 452 #define  CAUSEB_IP4             12
 453 #define  CAUSEF_IP4             (_ULCAST_(1)   << 12)
 454 #define  CAUSEB_IP5             13
 455 #define  CAUSEF_IP5             (_ULCAST_(1)   << 13)
 456 #define  CAUSEB_IP6             14
 457 #define  CAUSEF_IP6             (_ULCAST_(1)   << 14)
 458 #define  CAUSEB_IP7             15
 459 #define  CAUSEF_IP7             (_ULCAST_(1)   << 15)
 460 #define  CAUSEB_IV              23
 461 #define  CAUSEF_IV              (_ULCAST_(1)   << 23)
 462 #define  CAUSEB_PCI             26
 463 #define  CAUSEF_PCI             (_ULCAST_(1)   << 26)
 464 #define  CAUSEB_CE              28
 465 #define  CAUSEF_CE              (_ULCAST_(3)   << 28)
 466 #define  CAUSEB_TI              30
 467 #define  CAUSEF_TI              (_ULCAST_(1)   << 30)
 468 #define  CAUSEB_BD              31
 469 #define  CAUSEF_BD              (_ULCAST_(1)   << 31)
 470
 471 /*
 472  * Bits in the coprocessor 0 config register.
 473  */
 474 /* Generic bits.  */
 475 #define CONF_CM_CACHABLE_NO_WA          0
 476 #define CONF_CM_CACHABLE_WA             1
 477 #define CONF_CM_UNCACHED                2
 478 #define CONF_CM_CACHABLE_NONCOHERENT    3
 479 #define CONF_CM_CACHABLE_CE             4
 480 #define CONF_CM_CACHABLE_COW            5
 481 #define CONF_CM_CACHABLE_CUW            6
 482 #define CONF_CM_CACHABLE_ACCELERATED    7
 483 #define CONF_CM_CMASK                   7
 484 #define CONF_BE                 (_ULCAST_(1) << 15)
 485
 486 /* Bits common to various processors.  */
 487 #define CONF_CU                 (_ULCAST_(1) <<  3)
 488 #define CONF_DB                 (_ULCAST_(1) <<  4)
 489 #define CONF_IB                 (_ULCAST_(1) <<  5)
 490 #define CONF_DC                 (_ULCAST_(7) <<  6)
 491 #define CONF_IC                 (_ULCAST_(7) <<  9)
 492 #define CONF_EB                 (_ULCAST_(1) << 13)
 493 #define CONF_EM                 (_ULCAST_(1) << 14)
 494 #define CONF_SM                 (_ULCAST_(1) << 16)
 495 #define CONF_SC                 (_ULCAST_(1) << 17)
 496 #define CONF_EW                 (_ULCAST_(3) << 18)
 497 #define CONF_EP                 (_ULCAST_(15)<< 24)
 498 #define CONF_EC                 (_ULCAST_(7) << 28)
 499 #define CONF_CM                 (_ULCAST_(1) << 31)
 500
 501 /* Bits specific to the R4xx0.  */
 502 #define R4K_CONF_SW             (_ULCAST_(1) << 20)
 503 #define R4K_CONF_SS             (_ULCAST_(1) << 21)
 504 #define R4K_CONF_SB             (_ULCAST_(3) << 22)
 505
 506 /* Bits specific to the R5000.  */
 507 #define R5K_CONF_SE             (_ULCAST_(1) << 12)
 508 #define R5K_CONF_SS             (_ULCAST_(3) << 20)
 509
 510 /* Bits specific to the RM7000.  */
 511 #define RM7K_CONF_SE            (_ULCAST_(1) <<  3)
 512 #define RM7K_CONF_TE            (_ULCAST_(1) << 12)
 513 #define RM7K_CONF_CLK           (_ULCAST_(1) << 16)
 514 #define RM7K_CONF_TC            (_ULCAST_(1) << 17)
 515 #define RM7K_CONF_SI            (_ULCAST_(3) << 20)
 516 #define RM7K_CONF_SC            (_ULCAST_(1) << 31)
 517
 518 /* Bits specific to the R10000.  */
 519 #define R10K_CONF_DN            (_ULCAST_(3) <<  3)
 520 #define R10K_CONF_CT            (_ULCAST_(1) <<  5)
 521 #define R10K_CONF_PE            (_ULCAST_(1) <<  6)
 522 #define R10K_CONF_PM            (_ULCAST_(3) <<  7)
 523 #define R10K_CONF_EC            (_ULCAST_(15)<<  9)
 524 #define R10K_CONF_SB            (_ULCAST_(1) << 13)
 525 #define R10K_CONF_SK            (_ULCAST_(1) << 14)
 526 #define R10K_CONF_SS            (_ULCAST_(7) << 16)
 527 #define R10K_CONF_SC            (_ULCAST_(7) << 19)
 528 #define R10K_CONF_DC            (_ULCAST_(7) << 26)
 529 #define R10K_CONF_IC            (_ULCAST_(7) << 29)
 530
 531 /* Bits specific to the VR41xx.  */
 532 #define VR41_CONF_CS            (_ULCAST_(1) << 12)
 533 #define VR41_CONF_P4K           (_ULCAST_(1) << 13)
 534 #define VR41_CONF_BP            (_ULCAST_(1) << 16)
 535 #define VR41_CONF_M16           (_ULCAST_(1) << 20)
 536 #define VR41_CONF_AD            (_ULCAST_(1) << 23)
 537
 538 /* Bits specific to the R30xx.  */
 539 #define R30XX_CONF_FDM          (_ULCAST_(1) << 19)
 540 #define R30XX_CONF_REV          (_ULCAST_(1) << 22)
 541 #define R30XX_CONF_AC           (_ULCAST_(1) << 23)
 542 #define R30XX_CONF_RF           (_ULCAST_(1) << 24)
 543 #define R30XX_CONF_HALT         (_ULCAST_(1) << 25)
 544 #define R30XX_CONF_FPINT        (_ULCAST_(7) << 26)
 545 #define R30XX_CONF_DBR          (_ULCAST_(1) << 29)
 546 #define R30XX_CONF_SB           (_ULCAST_(1) << 30)
 547 #define R30XX_CONF_LOCK         (_ULCAST_(1) << 31)
 548
 549 /* Bits specific to the TX49.  */
 550 #define TX49_CONF_DC            (_ULCAST_(1) << 16)
 551 #define TX49_CONF_IC            (_ULCAST_(1) << 17)  /* conflict with CONF_SC */
 552 #define TX49_CONF_HALT          (_ULCAST_(1) << 18)
 553 #define TX49_CONF_CWFON         (_ULCAST_(1) << 27)
 554
 555 /* Bits specific to the MIPS32/64 PRA.  */
 556 #define MIPS_CONF_MT            (_ULCAST_(7) <<  7)
 557 #define MIPS_CONF_AR            (_ULCAST_(7) << 10)
 558 #define MIPS_CONF_AT            (_ULCAST_(3) << 13)
 559 #define MIPS_CONF_M             (_ULCAST_(1) << 31)
 560
 561 /*
 562  * Bits in the MIPS32/64 PRA coprocessor 0 config registers 1 and above.
 563  */
 564 #define MIPS_CONF1_FP           (_ULCAST_(1) <<  0)
 565 #define MIPS_CONF1_EP           (_ULCAST_(1) <<  1)
 566 #define MIPS_CONF1_CA           (_ULCAST_(1) <<  2)
 567 #define MIPS_CONF1_WR           (_ULCAST_(1) <<  3)
 568 #define MIPS_CONF1_PC           (_ULCAST_(1) <<  4)
 569 #define MIPS_CONF1_MD           (_ULCAST_(1) <<  5)
 570 #define MIPS_CONF1_C2           (_ULCAST_(1) <<  6)
 571 #define MIPS_CONF1_DA           (_ULCAST_(7) <<  7)
 572 #define MIPS_CONF1_DL           (_ULCAST_(7) << 10)
 573 #define MIPS_CONF1_DS           (_ULCAST_(7) << 13)
 574 #define MIPS_CONF1_IA           (_ULCAST_(7) << 16)
 575 #define MIPS_CONF1_IL           (_ULCAST_(7) << 19)
 576 #define MIPS_CONF1_IS           (_ULCAST_(7) << 22)
 577 #define MIPS_CONF1_TLBS         (_ULCAST_(63)<< 25)
 578
 579 #define MIPS_CONF2_SA           (_ULCAST_(15)<<  0)
 580 #define MIPS_CONF2_SL           (_ULCAST_(15)<<  4)
 581 #define MIPS_CONF2_SS           (_ULCAST_(15)<<  8)
 582 #define MIPS_CONF2_SU           (_ULCAST_(15)<< 12)
 583 #define MIPS_CONF2_TA           (_ULCAST_(15)<< 16)
 584 #define MIPS_CONF2_TL           (_ULCAST_(15)<< 20)
 585 #define MIPS_CONF2_TS           (_ULCAST_(15)<< 24)
 586 #define MIPS_CONF2_TU           (_ULCAST_(7) << 28)
 587
 588 #define MIPS_CONF3_TL           (_ULCAST_(1) <<  0)
 589 #define MIPS_CONF3_SM           (_ULCAST_(1) <<  1)
 590 #define MIPS_CONF3_MT           (_ULCAST_(1) <<  2)
 591 #define MIPS_CONF3_SP           (_ULCAST_(1) <<  4)
 592 #define MIPS_CONF3_VINT         (_ULCAST_(1) <<  5)
 593 #define MIPS_CONF3_VEIC         (_ULCAST_(1) <<  6)
 594 #define MIPS_CONF3_LPA          (_ULCAST_(1) <<  7)
 595 #define MIPS_CONF3_DSP          (_ULCAST_(1) << 10)
 596 #define MIPS_CONF3_DSP2P        (_ULCAST_(1) << 11)
 597 #define MIPS_CONF3_RXI          (_ULCAST_(1) << 12)
 598 #define MIPS_CONF3_ULRI         (_ULCAST_(1) << 13)
 599 #define MIPS_CONF3_ISA          (_ULCAST_(3) << 14)
 600 #define MIPS_CONF3_ISA_OE       (_ULCAST_(3) << 16)
 601 #define MIPS_CONF3_VZ           (_ULCAST_(1) << 23)
 602
 603 #define MIPS_CONF4_MMUSIZEEXT   (_ULCAST_(255) << 0)
 604 #define MIPS_CONF4_MMUEXTDEF    (_ULCAST_(3) << 14)
 605 #define MIPS_CONF4_MMUEXTDEF_MMUSIZEEXT (_ULCAST_(1) << 14)
 606
 607 #define MIPS_CONF6_SYND         (_ULCAST_(1) << 13)
 608
 609 #define MIPS_CONF7_WII          (_ULCAST_(1) << 31)
 610
 611 #define MIPS_CONF7_RPS          (_ULCAST_(1) << 2)
 612
 613
 614 /*
 615  * Bits in the MIPS32/64 coprocessor 1 (FPU) revision register.
 616  */
 617 #define MIPS_FPIR_S             (_ULCAST_(1) << 16)
 618 #define MIPS_FPIR_D             (_ULCAST_(1) << 17)
 619 #define MIPS_FPIR_PS            (_ULCAST_(1) << 18)
 620 #define MIPS_FPIR_3D            (_ULCAST_(1) << 19)
 621 #define MIPS_FPIR_W             (_ULCAST_(1) << 20)
 622 #define MIPS_FPIR_L             (_ULCAST_(1) << 21)
 623 #define MIPS_FPIR_F64           (_ULCAST_(1) << 22)
 624
 625 #ifndef __ASSEMBLY__
 626
 627 /*
 628  * Macros for handling the ISA mode bit for microMIPS.
 629  */
 630 #define get_isa16_mode(x)               ((x) & 0x1)
 631 #define msk_isa16_mode(x)               ((x) & ~0x1)
 632 #define set_isa16_mode(x)               do { (x) |= 0x1; } while(0)
 633
 634 /*
 635  * microMIPS instructions can be 16-bit or 32-bit in length. This
 636  * returns a 1 if the instruction is 16-bit and a 0 if 32-bit.
 637  */
 638 static inline int mm_insn_16bit(u16 insn)
 639 {
 640         u16 opcode = (insn >> 10) & 0x7;
 641
 642         return (opcode >= 1 && opcode <= 3) ? 1 : 0;
 643 }
 644
 645 /*
 646  * Functions to access the R10000 performance counters.  These are basically
 647  * mfc0 and mtc0 instructions from and to coprocessor register with a 5-bit
 648  * performance counter number encoded into bits 1 ... 5 of the instruction.
 649  * Only performance counters 0 to 1 actually exist, so for a non-R10000 aware
 650  * disassembler these will look like an access to sel 0 or 1.
 651  */
 652 #define read_r10k_perf_cntr(counter)                            \
 653 ({                                                              \
 654         unsigned int __res;                                     \
 655         __asm__ __volatile__(                                   \
 656         "mfpc\t%0, %1"                                          \
 657         : "=r" (__res)                                          \
 658         : "i" (counter));                                       \
 659                                                                 \
 660         __res;                                                  \
 661 })
 662
 663 #define write_r10k_perf_cntr(counter,val)                       \
 664 do {                                                            \
 665         __asm__ __volatile__(                                   \
 666         "mtpc\t%0, %1"                                          \
 667         :                                                       \
 668         : "r" (val), "i" (counter));                            \
 669 } while (0)
 670
 671 #define read_r10k_perf_event(counter)                           \
 672 ({                                                              \
 673         unsigned int __res;                                     \
 674         __asm__ __volatile__(                                   \
 675         "mfps\t%0, %1"                                          \
 676         : "=r" (__res)                                          \
 677         : "i" (counter));                                       \
 678                                                                 \
 679         __res;                                                  \
 680 })
 681
 682 #define write_r10k_perf_cntl(counter,val)                       \
 683 do {                                                            \
 684         __asm__ __volatile__(                                   \
 685         "mtps\t%0, %1"                                          \
 686         :                                                       \
 687         : "r" (val), "i" (counter));                            \
 688 } while (0)
 689
 690
 691 /*
 692  * Macros to access the system control coprocessor
 693  */
 694
 695 #define __read_32bit_c0_register(source, sel)                           \
 696 ({ int __res;                                                           \
 697         if (sel == 0)                                                   \
 698                 __asm__ __volatile__(                                   \
 699                         "mfc0\t%0, " #source "\n\t"                     \
 700                         : "=r" (__res));                                \
 701         else                                                            \
 702                 __asm__ __volatile__(                                   \
 703                         ".set\tmips32\n\t"                              \
 704                         "mfc0\t%0, " #source ", " #sel "\n\t"           \
 705                         ".set\tmips0\n\t"                               \
 706                         : "=r" (__res));                                \
 707         __res;                                                          \
 708 })
 709
 710 #define __read_64bit_c0_register(source, sel)                           \
 711 ({ unsigned long long __res;                                            \
 712         if (sizeof(unsigned long) == 4)                                 \
 713                 __res = __read_64bit_c0_split(source, sel);             \
 714         else if (sel == 0)                                              \
 715                 __asm__ __volatile__(                                   \
 716                         ".set\tmips3\n\t"                               \
 717                         "dmfc0\t%0, " #source "\n\t"                    \
 718                         ".set\tmips0"                                   \
 719                         : "=r" (__res));                                \
 720         else                                                            \
 721                 __asm__ __volatile__(                                   \
 722                         ".set\tmips64\n\t"                              \
 723                         "dmfc0\t%0, " #source ", " #sel "\n\t"          \
 724                         ".set\tmips0"                                   \
 725                         : "=r" (__res));                                \
 726         __res;                                                          \
 727 })
 728
 729 #define __write_32bit_c0_register(register, sel, value)                 \
 730 do {                                                                    \
 731         if (sel == 0)                                                   \
 732                 __asm__ __volatile__(                                   \
 733                         "mtc0\t%z0, " #register "\n\t"                  \
 734                         : : "Jr" ((unsigned int)(value)));              \
 735         else                                                            \
 736                 __asm__ __volatile__(                                   \
 737                         ".set\tmips32\n\t"                              \
 738                         "mtc0\t%z0, " #register ", " #sel "\n\t"        \
 739                         ".set\tmips0"                                   \
 740                         : : "Jr" ((unsigned int)(value)));              \
 741 } while (0)
 742
 743 #define __write_64bit_c0_register(register, sel, value)                 \
 744 do {                                                                    \
 745         if (sizeof(unsigned long) == 4)                                 \
 746                 __write_64bit_c0_split(register, sel, value);           \
 747         else if (sel == 0)                                              \
 748                 __asm__ __volatile__(                                   \
 749                         ".set\tmips3\n\t"                               \
 750                         "dmtc0\t%z0, " #register "\n\t"                 \
 751                         ".set\tmips0"                                   \
 752                         : : "Jr" (value));                              \
 753         else                                                            \
 754                 __asm__ __volatile__(                                   \
 755                         ".set\tmips64\n\t"                              \
 756                         "dmtc0\t%z0, " #register ", " #sel "\n\t"       \
 757                         ".set\tmips0"                                   \
 758                         : : "Jr" (value));                              \
 759 } while (0)
 760
 761 #define __read_ulong_c0_register(reg, sel)                              \
 762         ((sizeof(unsigned long) == 4) ?                                 \
 763         (unsigned long) __read_32bit_c0_register(reg, sel) :            \
 764         (unsigned long) __read_64bit_c0_register(reg, sel))
 765
 766 #define __write_ulong_c0_register(reg, sel, val)                        \
 767 do {                                                                    \
 768         if (sizeof(unsigned long) == 4)                                 \
 769                 __write_32bit_c0_register(reg, sel, val);               \
 770         else                                                            \
 771                 __write_64bit_c0_register(reg, sel, val);               \
 772 } while (0)
 773
 774 /*
 775  * On RM7000/RM9000 these are uses to access cop0 set 1 registers
 776  */
 777 #define __read_32bit_c0_ctrl_register(source)                           \
 778 ({ int __res;                                                           \
 779         __asm__ __volatile__(                                           \
 780                 "cfc0\t%0, " #source "\n\t"                             \
 781                 : "=r" (__res));                                        \
 782         __res;                                                          \
 783 })
 784
 785 #define __write_32bit_c0_ctrl_register(register, value)                 \
 786 do {                                                                    \
 787         __asm__ __volatile__(                                           \
 788                 "ctc0\t%z0, " #register "\n\t"                          \
 789                 : : "Jr" ((unsigned int)(value)));                      \
 790 } while (0)
 791
 792 /*
 793  * These versions are only needed for systems with more than 38 bits of
 794  * physical address space running the 32-bit kernel.  That's none atm :-)
 795  */
 796 #define __read_64bit_c0_split(source, sel)                              \
 797 ({                                                                      \
 798         unsigned long long __val;                                       \
 799         unsigned long __flags;                                          \
 800                                                                         \
 801         local_irq_save(__flags);                                        \
 802         if (sel == 0)                                                   \
 803                 __asm__ __volatile__(                                   \
 804                         ".set\tmips64\n\t"                              \
 805                         "dmfc0\t%M0, " #source "\n\t"                   \
 806                         "dsll\t%L0, %M0, 32\n\t"                        \
 807                         "dsra\t%M0, %M0, 32\n\t"                        \
 808                         "dsra\t%L0, %L0, 32\n\t"                        \
 809                         ".set\tmips0"                                   \
 810                         : "=r" (__val));                                \
 811         else                                                            \
 812                 __asm__ __volatile__(                                   \
 813                         ".set\tmips64\n\t"                              \
 814                         "dmfc0\t%M0, " #source ", " #sel "\n\t"         \
 815                         "dsll\t%L0, %M0, 32\n\t"                        \
 816                         "dsra\t%M0, %M0, 32\n\t"                        \
 817                         "dsra\t%L0, %L0, 32\n\t"                        \
 818                         ".set\tmips0"                                   \
 819                         : "=r" (__val));                                \
 820         local_irq_restore(__flags);                                     \
 821                                                                         \
 822         __val;                                                          \
 823 })
 824
 825 #define __write_64bit_c0_split(source, sel, val)                        \
 826 do {                                                                    \
 827         unsigned long __flags;                                          \
 828                                                                         \
 829         local_irq_save(__flags);                                        \
 830         if (sel == 0)                                                   \
 831                 __asm__ __volatile__(                                   \
 832                         ".set\tmips64\n\t"                              \
 833                         "dsll\t%L0, %L0, 32\n\t"                        \
 834                         "dsrl\t%L0, %L0, 32\n\t"                        \
 835                         "dsll\t%M0, %M0, 32\n\t"                        \
 836                         "or\t%L0, %L0, %M0\n\t"                         \
 837                         "dmtc0\t%L0, " #source "\n\t"                   \
 838                         ".set\tmips0"                                   \
 839                         : : "r" (val));                                 \
 840         else                                                            \
 841                 __asm__ __volatile__(                                   \
 842                         ".set\tmips64\n\t"                              \
 843                         "dsll\t%L0, %L0, 32\n\t"                        \
 844                         "dsrl\t%L0, %L0, 32\n\t"                        \
 845                         "dsll\t%M0, %M0, 32\n\t"                        \
 846                         "or\t%L0, %L0, %M0\n\t"                         \
 847                         "dmtc0\t%L0, " #source ", " #sel "\n\t"         \
 848                         ".set\tmips0"                                   \
 849                         : : "r" (val));                                 \
 850         local_irq_restore(__flags);                                     \
 851 } while (0)
 852
 853 #define read_c0_index()         __read_32bit_c0_register($0, 0)
 854 #define write_c0_index(val)     __write_32bit_c0_register($0, 0, val)
 855
 856 #define read_c0_random()        __read_32bit_c0_register($1, 0)
 857 #define write_c0_random(val)    __write_32bit_c0_register($1, 0, val)
 858
 859 #define read_c0_entrylo0()      __read_ulong_c0_register($2, 0)
 860 #define write_c0_entrylo0(val)  __write_ulong_c0_register($2, 0, val)
 861
 862 #define read_c0_entrylo1()      __read_ulong_c0_register($3, 0)
 863 #define write_c0_entrylo1(val)  __write_ulong_c0_register($3, 0, val)
 864
 865 #define read_c0_conf()          __read_32bit_c0_register($3, 0)
 866 #define write_c0_conf(val)      __write_32bit_c0_register($3, 0, val)
 867
 868 #define read_c0_context()       __read_ulong_c0_register($4, 0)
 869 #define write_c0_context(val)   __write_ulong_c0_register($4, 0, val)
 870
 871 #define read_c0_userlocal()     __read_ulong_c0_register($4, 2)
 872 #define write_c0_userlocal(val) __write_ulong_c0_register($4, 2, val)
 873
 874 #define read_c0_pagemask()      __read_32bit_c0_register($5, 0)
 875 #define write_c0_pagemask(val)  __write_32bit_c0_register($5, 0, val)
 876
 877 #define read_c0_pagegrain()     __read_32bit_c0_register($5, 1)
 878 #define write_c0_pagegrain(val) __write_32bit_c0_register($5, 1, val)
 879
 880 #define read_c0_wired()         __read_32bit_c0_register($6, 0)
 881 #define write_c0_wired(val)     __write_32bit_c0_register($6, 0, val)
 882
 883 #define read_c0_info()          __read_32bit_c0_register($7, 0)
 884
 885 #define read_c0_cache()         __read_32bit_c0_register($7, 0) /* TX39xx */
 886 #define write_c0_cache(val)     __write_32bit_c0_register($7, 0, val)
 887
 888 #define read_c0_badvaddr()      __read_ulong_c0_register($8, 0)
 889 #define write_c0_badvaddr(val)  __write_ulong_c0_register($8, 0, val)
 890
 891 #define read_c0_count()         __read_32bit_c0_register($9, 0)
 892 #define write_c0_count(val)     __write_32bit_c0_register($9, 0, val)
 893
 894 #define read_c0_count2()        __read_32bit_c0_register($9, 6) /* pnx8550 */
 895 #define write_c0_count2(val)    __write_32bit_c0_register($9, 6, val)
 896
 897 #define read_c0_count3()        __read_32bit_c0_register($9, 7) /* pnx8550 */
 898 #define write_c0_count3(val)    __write_32bit_c0_register($9, 7, val)
 899
 900 #define read_c0_entryhi()       __read_ulong_c0_register($10, 0)
 901 #define write_c0_entryhi(val)   __write_ulong_c0_register($10, 0, val)
 902
 903 #define read_c0_compare()       __read_32bit_c0_register($11, 0)
 904 #define write_c0_compare(val)   __write_32bit_c0_register($11, 0, val)
 905
 906 #define read_c0_compare2()      __read_32bit_c0_register($11, 6) /* pnx8550 */
 907 #define write_c0_compare2(val)  __write_32bit_c0_register($11, 6, val)
 908
 909 #define read_c0_compare3()      __read_32bit_c0_register($11, 7) /* pnx8550 */
 910 #define write_c0_compare3(val)  __write_32bit_c0_register($11, 7, val)
 911
 912 #define read_c0_status()        __read_32bit_c0_register($12, 0)
 913 #ifdef CONFIG_MIPS_MT_SMTC
 914 #define write_c0_status(val)                                            \
 915 do {                                                                    \
 916         __write_32bit_c0_register($12, 0, val);                         \
 917         __ehb();                                                        \
 918 } while (0)
 919 #else
 920 /*
 921  * Legacy non-SMTC code, which may be hazardous
 922  * but which might not support EHB
 923  */
 924 #define write_c0_status(val)    __write_32bit_c0_register($12, 0, val)
 925 #endif /* CONFIG_MIPS_MT_SMTC */
 926
 927 #define read_c0_cause()         __read_32bit_c0_register($13, 0)
 928 #define write_c0_cause(val)     __write_32bit_c0_register($13, 0, val)
 929
 930 #define read_c0_epc()           __read_ulong_c0_register($14, 0)
 931 #define write_c0_epc(val)       __write_ulong_c0_register($14, 0, val)
 932
 933 #define read_c0_prid()          __read_32bit_c0_register($15, 0)
 934
 935 #define read_c0_config()        __read_32bit_c0_register($16, 0)
 936 #define read_c0_config1()       __read_32bit_c0_register($16, 1)
 937 #define read_c0_config2()       __read_32bit_c0_register($16, 2)
 938 #define read_c0_config3()       __read_32bit_c0_register($16, 3)
 939 #define read_c0_config4()       __read_32bit_c0_register($16, 4)
 940 #define read_c0_config5()       __read_32bit_c0_register($16, 5)
 941 #define read_c0_config6()       __read_32bit_c0_register($16, 6)
 942 #define read_c0_config7()       __read_32bit_c0_register($16, 7)
 943 #define write_c0_config(val)    __write_32bit_c0_register($16, 0, val)
 944 #define write_c0_config1(val)   __write_32bit_c0_register($16, 1, val)
 945 #define write_c0_config2(val)   __write_32bit_c0_register($16, 2, val)
 946 #define write_c0_config3(val)   __write_32bit_c0_register($16, 3, val)
 947 #define write_c0_config4(val)   __write_32bit_c0_register($16, 4, val)
 948 #define write_c0_config5(val)   __write_32bit_c0_register($16, 5, val)
 949 #define write_c0_config6(val)   __write_32bit_c0_register($16, 6, val)
 950 #define write_c0_config7(val)   __write_32bit_c0_register($16, 7, val)
 951
 952 /*
 953  * The WatchLo register.  There may be up to 8 of them.
 954  */
 955 #define read_c0_watchlo0()      __read_ulong_c0_register($18, 0)
 956 #define read_c0_watchlo1()      __read_ulong_c0_register($18, 1)
 957 #define read_c0_watchlo2()      __read_ulong_c0_register($18, 2)
 958 #define read_c0_watchlo3()      __read_ulong_c0_register($18, 3)
 959 #define read_c0_watchlo4()      __read_ulong_c0_register($18, 4)
 960 #define read_c0_watchlo5()      __read_ulong_c0_register($18, 5)
 961 #define read_c0_watchlo6()      __read_ulong_c0_register($18, 6)
 962 #define read_c0_watchlo7()      __read_ulong_c0_register($18, 7)
 963 #define write_c0_watchlo0(val)  __write_ulong_c0_register($18, 0, val)
 964 #define write_c0_watchlo1(val)  __write_ulong_c0_register($18, 1, val)
 965 #define write_c0_watchlo2(val)  __write_ulong_c0_register($18, 2, val)
 966 #define write_c0_watchlo3(val)  __write_ulong_c0_register($18, 3, val)
 967 #define write_c0_watchlo4(val)  __write_ulong_c0_register($18, 4, val)
 968 #define write_c0_watchlo5(val)  __write_ulong_c0_register($18, 5, val)
 969 #define write_c0_watchlo6(val)  __write_ulong_c0_register($18, 6, val)
 970 #define write_c0_watchlo7(val)  __write_ulong_c0_register($18, 7, val)
 971
 972 /*
 973  * The WatchHi register.  There may be up to 8 of them.
 974  */
 975 #define read_c0_watchhi0()      __read_32bit_c0_register($19, 0)
 976 #define read_c0_watchhi1()      __read_32bit_c0_register($19, 1)
 977 #define read_c0_watchhi2()      __read_32bit_c0_register($19, 2)
 978 #define read_c0_watchhi3()      __read_32bit_c0_register($19, 3)
 979 #define read_c0_watchhi4()      __read_32bit_c0_register($19, 4)
 980 #define read_c0_watchhi5()      __read_32bit_c0_register($19, 5)
 981 #define read_c0_watchhi6()      __read_32bit_c0_register($19, 6)
 982 #define read_c0_watchhi7()      __read_32bit_c0_register($19, 7)
 983
 984 #define write_c0_watchhi0(val)  __write_32bit_c0_register($19, 0, val)
 985 #define write_c0_watchhi1(val)  __write_32bit_c0_register($19, 1, val)
 986 #define write_c0_watchhi2(val)  __write_32bit_c0_register($19, 2, val)
 987 #define write_c0_watchhi3(val)  __write_32bit_c0_register($19, 3, val)
 988 #define write_c0_watchhi4(val)  __write_32bit_c0_register($19, 4, val)
 989 #define write_c0_watchhi5(val)  __write_32bit_c0_register($19, 5, val)
 990 #define write_c0_watchhi6(val)  __write_32bit_c0_register($19, 6, val)
 991 #define write_c0_watchhi7(val)  __write_32bit_c0_register($19, 7, val)
 992
 993 #define read_c0_xcontext()      __read_ulong_c0_register($20, 0)
 994 #define write_c0_xcontext(val)  __write_ulong_c0_register($20, 0, val)
 995
 996 #define read_c0_intcontrol()    __read_32bit_c0_ctrl_register($20)
 997 #define write_c0_intcontrol(val) __write_32bit_c0_ctrl_register($20, val)
 998
 999 #define read_c0_framemask()     __read_32bit_c0_register($21, 0)
1000 #define write_c0_framemask(val) __write_32bit_c0_register($21, 0, val)
1001
1002 #define read_c0_diag()          __read_32bit_c0_register($22, 0)
1003 #define write_c0_diag(val)      __write_32bit_c0_register($22, 0, val)
1004
1005 #define read_c0_diag1()         __read_32bit_c0_register($22, 1)
1006 #define write_c0_diag1(val)     __write_32bit_c0_register($22, 1, val)
1007
1008 #define read_c0_diag2()         __read_32bit_c0_register($22, 2)
1009 #define write_c0_diag2(val)     __write_32bit_c0_register($22, 2, val)
1010
1011 #define read_c0_diag3()         __read_32bit_c0_register($22, 3)
1012 #define write_c0_diag3(val)     __write_32bit_c0_register($22, 3, val)
1013
1014 #define read_c0_diag4()         __read_32bit_c0_register($22, 4)
1015 #define write_c0_diag4(val)     __write_32bit_c0_register($22, 4, val)
1016
1017 #define read_c0_diag5()         __read_32bit_c0_register($22, 5)
1018 #define write_c0_diag5(val)     __write_32bit_c0_register($22, 5, val)
1019
1020 #define read_c0_debug()         __read_32bit_c0_register($23, 0)
1021 #define write_c0_debug(val)     __write_32bit_c0_register($23, 0, val)
1022
1023 #define read_c0_depc()          __read_ulong_c0_register($24, 0)
1024 #define write_c0_depc(val)      __write_ulong_c0_register($24, 0, val)
1025
1026 /*
1027  * MIPS32 / MIPS64 performance counters
1028  */
1029 #define read_c0_perfctrl0()     __read_32bit_c0_register($25, 0)
1030 #define write_c0_perfctrl0(val) __write_32bit_c0_register($25, 0, val)
1031 #define read_c0_perfcntr0()     __read_32bit_c0_register($25, 1)
1032 #define write_c0_perfcntr0(val) __write_32bit_c0_register($25, 1, val)
1033 #define read_c0_perfcntr0_64()  __read_64bit_c0_register($25, 1)
1034 #define write_c0_perfcntr0_64(val) __write_64bit_c0_register($25, 1, val)
1035 #define read_c0_perfctrl1()     __read_32bit_c0_register($25, 2)
1036 #define write_c0_perfctrl1(val) __write_32bit_c0_register($25, 2, val)
1037 #define read_c0_perfcntr1()     __read_32bit_c0_register($25, 3)
1038 #define write_c0_perfcntr1(val) __write_32bit_c0_register($25, 3, val)
1039 #define read_c0_perfcntr1_64()  __read_64bit_c0_register($25, 3)
1040 #define write_c0_perfcntr1_64(val) __write_64bit_c0_register($25, 3, val)
1041 #define read_c0_perfctrl2()     __read_32bit_c0_register($25, 4)
1042 #define write_c0_perfctrl2(val) __write_32bit_c0_register($25, 4, val)
1043 #define read_c0_perfcntr2()     __read_32bit_c0_register($25, 5)
1044 #define write_c0_perfcntr2(val) __write_32bit_c0_register($25, 5, val)
1045 #define read_c0_perfcntr2_64()  __read_64bit_c0_register($25, 5)
1046 #define write_c0_perfcntr2_64(val) __write_64bit_c0_register($25, 5, val)
1047 #define read_c0_perfctrl3()     __read_32bit_c0_register($25, 6)
1048 #define write_c0_perfctrl3(val) __write_32bit_c0_register($25, 6, val)
1049 #define read_c0_perfcntr3()     __read_32bit_c0_register($25, 7)
1050 #define write_c0_perfcntr3(val) __write_32bit_c0_register($25, 7, val)
1051 #define read_c0_perfcntr3_64()  __read_64bit_c0_register($25, 7)
1052 #define write_c0_perfcntr3_64(val) __write_64bit_c0_register($25, 7, val)
1053
1054 #define read_c0_ecc()           __read_32bit_c0_register($26, 0)
1055 #define write_c0_ecc(val)       __write_32bit_c0_register($26, 0, val)
1056
1057 #define read_c0_derraddr0()     __read_ulong_c0_register($26, 1)
1058 #define write_c0_derraddr0(val) __write_ulong_c0_register($26, 1, val)
1059
1060 #define read_c0_cacheerr()      __read_32bit_c0_register($27, 0)
1061
1062 #define read_c0_derraddr1()     __read_ulong_c0_register($27, 1)
1063 #define write_c0_derraddr1(val) __write_ulong_c0_register($27, 1, val)
1064
1065 #define read_c0_taglo()         __read_32bit_c0_register($28, 0)
1066 #define write_c0_taglo(val)     __write_32bit_c0_register($28, 0, val)
1067
1068 #define read_c0_dtaglo()        __read_32bit_c0_register($28, 2)
1069 #define write_c0_dtaglo(val)    __write_32bit_c0_register($28, 2, val)
1070
1071 #define read_c0_ddatalo()       __read_32bit_c0_register($28, 3)
1072 #define write_c0_ddatalo(val)   __write_32bit_c0_register($28, 3, val)
1073
1074 #define read_c0_staglo()        __read_32bit_c0_register($28, 4)
1075 #define write_c0_staglo(val)    __write_32bit_c0_register($28, 4, val)
1076
1077 #define read_c0_taghi()         __read_32bit_c0_register($29, 0)
1078 #define write_c0_taghi(val)     __write_32bit_c0_register($29, 0, val)
1079
1080 #define read_c0_errorepc()      __read_ulong_c0_register($30, 0)
1081 #define write_c0_errorepc(val)  __write_ulong_c0_register($30, 0, val)
1082
1083 /* MIPSR2 */
1084 #define read_c0_hwrena()        __read_32bit_c0_register($7, 0)
1085 #define write_c0_hwrena(val)    __write_32bit_c0_register($7, 0, val)
1086
1087 #define read_c0_intctl()        __read_32bit_c0_register($12, 1)
1088 #define write_c0_intctl(val)    __write_32bit_c0_register($12, 1, val)
1089
1090 #define read_c0_srsctl()        __read_32bit_c0_register($12, 2)
1091 #define write_c0_srsctl(val)    __write_32bit_c0_register($12, 2, val)
1092
1093 #define read_c0_srsmap()        __read_32bit_c0_register($12, 3)
1094 #define write_c0_srsmap(val)    __write_32bit_c0_register($12, 3, val)
1095
1096 #define read_c0_ebase()         __read_32bit_c0_register($15, 1)
1097 #define write_c0_ebase(val)     __write_32bit_c0_register($15, 1, val)
1098
1099
1100 /* Cavium OCTEON (cnMIPS) */
1101 #define read_c0_cvmcount()      __read_ulong_c0_register($9, 6)
1102 #define write_c0_cvmcount(val)  __write_ulong_c0_register($9, 6, val)
1103
1104 #define read_c0_cvmctl()        __read_64bit_c0_register($9, 7)
1105 #define write_c0_cvmctl(val)    __write_64bit_c0_register($9, 7, val)
1106
1107 #define read_c0_cvmmemctl()     __read_64bit_c0_register($11, 7)
1108 #define write_c0_cvmmemctl(val) __write_64bit_c0_register($11, 7, val)
1109 /*
1110  * The cacheerr registers are not standardized.  On OCTEON, they are
1111  * 64 bits wide.
1112  */
1113 #define read_octeon_c0_icacheerr()      __read_64bit_c0_register($27, 0)
1114 #define write_octeon_c0_icacheerr(val)  __write_64bit_c0_register($27, 0, val)
1115
1116 #define read_octeon_c0_dcacheerr()      __read_64bit_c0_register($27, 1)
1117 #define write_octeon_c0_dcacheerr(val)  __write_64bit_c0_register($27, 1, val)
1118
1119 /* BMIPS3300 */
1120 #define read_c0_brcm_config_0()         __read_32bit_c0_register($22, 0)
1121 #define write_c0_brcm_config_0(val)     __write_32bit_c0_register($22, 0, val)
1122
1123 #define read_c0_brcm_bus_pll()          __read_32bit_c0_register($22, 4)
1124 #define write_c0_brcm_bus_pll(val)      __write_32bit_c0_register($22, 4, val)
1125
1126 #define read_c0_brcm_reset()            __read_32bit_c0_register($22, 5)
1127 #define write_c0_brcm_reset(val)        __write_32bit_c0_register($22, 5, val)
1128
1129 /* BMIPS43xx */
1130 #define read_c0_brcm_cmt_intr()         __read_32bit_c0_register($22, 1)
1131 #define write_c0_brcm_cmt_intr(val)     __write_32bit_c0_register($22, 1, val)
1132
1133 #define read_c0_brcm_cmt_ctrl()         __read_32bit_c0_register($22, 2)
1134 #define write_c0_brcm_cmt_ctrl(val)     __write_32bit_c0_register($22, 2, val)
1135
1136 #define read_c0_brcm_cmt_local()        __read_32bit_c0_register($22, 3)
1137 #define write_c0_brcm_cmt_local(val)    __write_32bit_c0_register($22, 3, val)
1138
1139 #define read_c0_brcm_config_1()         __read_32bit_c0_register($22, 5)
1140 #define write_c0_brcm_config_1(val)     __write_32bit_c0_register($22, 5, val)
1141
1142 #define read_c0_brcm_cbr()              __read_32bit_c0_register($22, 6)
1143 #define write_c0_brcm_cbr(val)          __write_32bit_c0_register($22, 6, val)
1144
1145 /* BMIPS5000 */
1146 #define read_c0_brcm_config()           __read_32bit_c0_register($22, 0)
1147 #define write_c0_brcm_config(val)       __write_32bit_c0_register($22, 0, val)
1148
1149 #define read_c0_brcm_mode()             __read_32bit_c0_register($22, 1)
1150 #define write_c0_brcm_mode(val)         __write_32bit_c0_register($22, 1, val)
1151
1152 #define read_c0_brcm_action()           __read_32bit_c0_register($22, 2)
1153 #define write_c0_brcm_action(val)       __write_32bit_c0_register($22, 2, val)
1154
1155 #define read_c0_brcm_edsp()             __read_32bit_c0_register($22, 3)
1156 #define write_c0_brcm_edsp(val)         __write_32bit_c0_register($22, 3, val)
1157
1158 #define read_c0_brcm_bootvec()          __read_32bit_c0_register($22, 4)
1159 #define write_c0_brcm_bootvec(val)      __write_32bit_c0_register($22, 4, val)
1160
1161 #define read_c0_brcm_sleepcount()       __read_32bit_c0_register($22, 7)
1162 #define write_c0_brcm_sleepcount(val)   __write_32bit_c0_register($22, 7, val)
1163
1164 /*
1165  * Macros to access the floating point coprocessor control registers
1166  */
1167 #define read_32bit_cp1_register(source)                                 \
1168 ({                                                                      \
1169         int __res;                                                      \
1170                                                                         \
1171         __asm__ __volatile__(                                           \
1172         "       .set    push                                    \n"     \
1173         "       .set    reorder                                 \n"     \
1174         "       # gas fails to assemble cfc1 for some archs,    \n"     \
1175         "       # like Octeon.                                  \n"     \
1176         "       .set    mips1                                   \n"     \
1177         "       cfc1    %0,"STR(source)"                        \n"     \
1178         "       .set    pop                                     \n"     \
1179         : "=r" (__res));                                                \
1180         __res;                                                          \
1181 })
1182
1183 #ifdef HAVE_AS_DSP
1184 #define rddsp(mask)                                                     \
1185 ({                                                                      \
1186         unsigned int __dspctl;                                          \
1187                                                                         \
1188         __asm__ __volatile__(                                           \
1189         "       .set push                                       \n"     \
1190         "       .set dsp                                        \n"     \
1191         "       rddsp   %0, %x1                                 \n"     \
1192         "       .set pop                                        \n"     \
1193         : "=r" (__dspctl)                                               \
1194         : "i" (mask));                                                  \
1195         __dspctl;                                                       \
1196 })
1197
1198 #define wrdsp(val, mask)                                                \
1199 do {                                                                    \
1200         __asm__ __volatile__(                                           \
1201         "       .set push                                       \n"     \
1202         "       .set dsp                                        \n"     \
1203         "       wrdsp   %0, %x1                                 \n"     \
1204         "       .set pop                                        \n"     \
1205         :                                                               \
1206         : "r" (val), "i" (mask));                                       \
1207 } while (0)
1208
1209 #define mflo0()                                                         \
1210 ({                                                                      \
1211         long mflo0;                                                     \
1212         __asm__(                                                        \
1213         "       .set push                                       \n"     \
1214         "       .set dsp                                        \n"     \
1215         "       mflo %0, $ac0                                   \n"     \
1216         "       .set pop                                        \n"     \
1217         : "=r" (mflo0));                                                \
1218         mflo0;                                                          \
1219 })
1220
1221 #define mflo1()                                                         \
1222 ({                                                                      \
1223         long mflo1;                                                     \
1224         __asm__(                                                        \
1225         "       .set push                                       \n"     \
1226         "       .set dsp                                        \n"     \
1227         "       mflo %0, $ac1                                   \n"     \
1228         "       .set pop                                        \n"     \
1229         : "=r" (mflo1));                                                \
1230         mflo1;                                                          \
1231 })
1232
1233 #define mflo2()                                                         \
1234 ({                                                                      \
1235         long mflo2;                                                     \
1236         __asm__(                                                        \
1237         "       .set push                                       \n"     \
1238         "       .set dsp                                        \n"     \
1239         "       mflo %0, $ac2                                   \n"     \
1240         "       .set pop                                        \n"     \
1241         : "=r" (mflo2));                                                \
1242         mflo2;                                                          \
1243 })
1244
1245 #define mflo3()                                                         \
1246 ({                                                                      \
1247         long mflo3;                                                     \
1248         __asm__(                                                        \
1249         "       .set push                                       \n"     \
1250         "       .set dsp                                        \n"     \
1251         "       mflo %0, $ac3                                   \n"     \
1252         "       .set pop                                        \n"     \
1253         : "=r" (mflo3));                                                \
1254         mflo3;                                                          \
1255 })
1256
1257 #define mfhi0()                                                         \
1258 ({                                                                      \
1259         long mfhi0;                                                     \
1260         __asm__(                                                        \
1261         "       .set push                                       \n"     \
1262         "       .set dsp                                        \n"     \
1263         "       mfhi %0, $ac0                                   \n"     \
1264         "       .set pop                                        \n"     \
1265         : "=r" (mfhi0));                                                \
1266         mfhi0;                                                          \
1267 })
1268
1269 #define mfhi1()                                                         \
1270 ({                                                                      \
1271         long mfhi1;                                                     \
1272         __asm__(                                                        \
1273         "       .set push                                       \n"     \
1274         "       .set dsp                                        \n"     \
1275         "       mfhi %0, $ac1                                   \n"     \
1276         "       .set pop                                        \n"     \
1277         : "=r" (mfhi1));                                                \
1278         mfhi1;                                                          \
1279 })
1280
1281 #define mfhi2()                                                         \
1282 ({                                                                      \
1283         long mfhi2;                                                     \
1284         __asm__(                                                        \
1285         "       .set push                                       \n"     \
1286         "       .set dsp                                        \n"     \
1287         "       mfhi %0, $ac2                                   \n"     \
1288         "       .set pop                                        \n"     \
1289         : "=r" (mfhi2));                                                \
1290         mfhi2;                                                          \
1291 })
1292
1293 #define mfhi3()                                                         \
1294 ({                                                                      \
1295         long mfhi3;                                                     \
1296         __asm__(                                                        \
1297         "       .set push                                       \n"     \
1298         "       .set dsp                                        \n"     \
1299         "       mfhi %0, $ac3                                   \n"     \
1300         "       .set pop                                        \n"     \
1301         : "=r" (mfhi3));                                                \
1302         mfhi3;                                                          \
1303 })
1304
1305
1306 #define mtlo0(x)                                                        \
1307 ({                                                                      \
1308         __asm__(                                                        \
1309         "       .set push                                       \n"     \
1310         "       .set dsp                                        \n"     \
1311         "       mtlo %0, $ac0                                   \n"     \
1312         "       .set pop                                        \n"     \
1313         :                                                               \
1314         : "r" (x));                                                     \
1315 })
1316
1317 #define mtlo1(x)                                                        \
1318 ({                                                                      \
1319         __asm__(                                                        \
1320         "       .set push                                       \n"     \
1321         "       .set dsp                                        \n"     \
1322         "       mtlo %0, $ac1                                   \n"     \
1323         "       .set pop                                        \n"     \
1324         :                                                               \
1325         : "r" (x));                                                     \
1326 })
1327
1328 #define mtlo2(x)                                                        \
1329 ({                                                                      \
1330         __asm__(                                                        \
1331         "       .set push                                       \n"     \
1332         "       .set dsp                                        \n"     \
1333         "       mtlo %0, $ac2                                   \n"     \
1334         "       .set pop                                        \n"     \
1335         :                                                               \
1336         : "r" (x));                                                     \
1337 })
1338
1339 #define mtlo3(x)                                                        \
1340 ({                                                                      \
1341         __asm__(                                                        \
1342         "       .set push                                       \n"     \
1343         "       .set dsp                                        \n"     \
1344         "       mtlo %0, $ac3                                   \n"     \
1345         "       .set pop                                        \n"     \
1346         :                                                               \
1347         : "r" (x));                                                     \
1348 })
1349
1350 #define mthi0(x)                                                        \
1351 ({                                                                      \
1352         __asm__(                                                        \
1353         "       .set push                                       \n"     \
1354         "       .set dsp                                        \n"     \
1355         "       mthi %0, $ac0                                   \n"     \
1356         "       .set pop                                        \n"     \
1357         :                                                               \
1358         : "r" (x));                                                     \
1359 })
1360
1361 #define mthi1(x)                                                        \
1362 ({                                                                      \
1363         __asm__(                                                        \
1364         "       .set push                                       \n"     \
1365         "       .set dsp                                        \n"     \
1366         "       mthi %0, $ac1                                   \n"     \
1367         "       .set pop                                        \n"     \
1368         :                                                               \
1369         : "r" (x));                                                     \
1370 })
1371
1372 #define mthi2(x)                                                        \
1373 ({                                                                      \
1374         __asm__(                                                        \
1375         "       .set push                                       \n"     \
1376         "       .set dsp                                        \n"     \
1377         "       mthi %0, $ac2                                   \n"     \
1378         "       .set pop                                        \n"     \
1379         :                                                               \
1380         : "r" (x));                                                     \
1381 })
1382
1383 #define mthi3(x)                                                        \
1384 ({                                                                      \
1385         __asm__(                                                        \
1386         "       .set push                                       \n"     \
1387         "       .set dsp                                        \n"     \
1388         "       mthi %0, $ac3                                   \n"     \
1389         "       .set pop                                        \n"     \
1390         :                                                               \
1391         : "r" (x));                                                     \
1392 })
1393
1394 #else
1395
1396 #ifdef CONFIG_CPU_MICROMIPS
1397 #define rddsp(mask)                                                     \
1398 ({                                                                      \
1399         unsigned int __res;                                             \
1400                                                                         \
1401         __asm__ __volatile__(                                           \
1402         "       .set    push                                    \n"     \
1403         "       .set    noat                                    \n"     \
1404         "       # rddsp $1, %x1                                 \n"     \
1405         "       .hword  ((0x0020067c | (%x1 << 14)) >> 16)      \n"     \
1406         "       .hword  ((0x0020067c | (%x1 << 14)) & 0xffff)   \n"     \
1407         "       move    %0, $1                                  \n"     \
1408         "       .set    pop                                     \n"     \
1409         : "=r" (__res)                                                  \
1410         : "i" (mask));                                                  \
1411         __res;                                                          \
1412 })
1413
1414 #define wrdsp(val, mask)                                                \
1415 do {                                                                    \
1416         __asm__ __volatile__(                                           \
1417         "       .set    push                                    \n"     \
1418         "       .set    noat                                    \n"     \
1419         "       move    $1, %0                                  \n"     \
1420         "       # wrdsp $1, %x1                                 \n"     \
1421         "       .hword  ((0x0020167c | (%x1 << 14)) >> 16)      \n"     \
1422         "       .hword  ((0x0020167c | (%x1 << 14)) & 0xffff)   \n"     \
1423         "       .set    pop                                     \n"     \
1424         :                                                               \
1425         : "r" (val), "i" (mask));                                       \
1426 } while (0)
1427
1428 #define _umips_dsp_mfxxx(ins)                                           \
1429 ({                                                                      \
1430         unsigned long __treg;                                           \
1431                                                                         \
1432         __asm__ __volatile__(                                           \
1433         "       .set    push                                    \n"     \
1434         "       .set    noat                                    \n"     \
1435         "       .hword  0x0001                                  \n"     \
1436         "       .hword  %x1                                     \n"     \
1437         "       move    %0, $1                                  \n"     \
1438         "       .set    pop                                     \n"     \
1439         : "=r" (__treg)                                                 \
1440         : "i" (ins));                                                   \
1441         __treg;                                                         \
1442 })
1443
1444 #define _umips_dsp_mtxxx(val, ins)                                      \
1445 do {                                                                    \
1446         __asm__ __volatile__(                                           \
1447         "       .set    push                                    \n"     \
1448         "       .set    noat                                    \n"     \
1449         "       move    $1, %0                                  \n"     \
1450         "       .hword  0x0001                                  \n"     \
1451         "       .hword  %x1                                     \n"     \
1452         "       .set    pop                                     \n"     \
1453         :                                                               \
1454         : "r" (val), "i" (ins));                                        \
1455 } while (0)
1456
1457 #define _umips_dsp_mflo(reg) _umips_dsp_mfxxx((reg << 14) | 0x107c)
1458 #define _umips_dsp_mfhi(reg) _umips_dsp_mfxxx((reg << 14) | 0x007c)
1459
1460 #define _umips_dsp_mtlo(val, reg) _umips_dsp_mtxxx(val, ((reg << 14) | 0x307c))
1461 #define _umips_dsp_mthi(val, reg) _umips_dsp_mtxxx(val, ((reg << 14) | 0x207c))
1462
1463 #define mflo0() _umips_dsp_mflo(0)
1464 #define mflo1() _umips_dsp_mflo(1)
1465 #define mflo2() _umips_dsp_mflo(2)
1466 #define mflo3() _umips_dsp_mflo(3)
1467
1468 #define mfhi0() _umips_dsp_mfhi(0)
1469 #define mfhi1() _umips_dsp_mfhi(1)
1470 #define mfhi2() _umips_dsp_mfhi(2)
1471 #define mfhi3() _umips_dsp_mfhi(3)
1472
1473 #define mtlo0(x) _umips_dsp_mtlo(x, 0)
1474 #define mtlo1(x) _umips_dsp_mtlo(x, 1)
1475 #define mtlo2(x) _umips_dsp_mtlo(x, 2)
1476 #define mtlo3(x) _umips_dsp_mtlo(x, 3)
1477
1478 #define mthi0(x) _umips_dsp_mthi(x, 0)
1479 #define mthi1(x) _umips_dsp_mthi(x, 1)
1480 #define mthi2(x) _umips_dsp_mthi(x, 2)
1481 #define mthi3(x) _umips_dsp_mthi(x, 3)
1482
1483 #else  /* !CONFIG_CPU_MICROMIPS */
1484 #define rddsp(mask)                                                     \
1485 ({                                                                      \
1486         unsigned int __res;                                             \
1487                                                                         \
1488         __asm__ __volatile__(                                           \
1489         "       .set    push                            \n"             \
1490         "       .set    noat                            \n"             \
1491         "       # rddsp $1, %x1                         \n"             \
1492         "       .word   0x7c000cb8 | (%x1 << 16)        \n"             \
1493         "       move    %0, $1                          \n"             \
1494         "       .set    pop                             \n"             \
1495         : "=r" (__res)                                                  \
1496         : "i" (mask));                                                  \
1497         __res;                                                          \
1498 })
1499
1500 #define wrdsp(val, mask)                                                \
1501 do {                                                                    \
1502         __asm__ __volatile__(                                           \
1503         "       .set    push                                    \n"     \
1504         "       .set    noat                                    \n"     \
1505         "       move    $1, %0                                  \n"     \
1506         "       # wrdsp $1, %x1                                 \n"     \
1507         "       .word   0x7c2004f8 | (%x1 << 11)                \n"     \
1508         "       .set    pop                                     \n"     \
1509         :                                                               \
1510         : "r" (val), "i" (mask));                                       \
1511 } while (0)
1512
1513 #define _dsp_mfxxx(ins)                                                 \
1514 ({                                                                      \
1515         unsigned long __treg;                                           \
1516                                                                         \
1517         __asm__ __volatile__(                                           \
1518         "       .set    push                                    \n"     \
1519         "       .set    noat                                    \n"     \
1520         "       .word   (0x00000810 | %1)                       \n"     \
1521         "       move    %0, $1                                  \n"     \
1522         "       .set    pop                                     \n"     \
1523         : "=r" (__treg)                                                 \
1524         : "i" (ins));                                                   \
1525         __treg;                                                         \
1526 })
1527
1528 #define _dsp_mtxxx(val, ins)                                            \
1529 do {                                                                    \
1530         __asm__ __volatile__(                                           \
1531         "       .set    push                                    \n"     \
1532         "       .set    noat                                    \n"     \
1533         "       move    $1, %0                                  \n"     \
1534         "       .word   (0x00200011 | %1)                       \n"     \
1535         "       .set    pop                                     \n"     \
1536         :                                                               \
1537         : "r" (val), "i" (ins));                                        \
1538 } while (0)
1539
1540 #define _dsp_mflo(reg) _dsp_mfxxx((reg << 21) | 0x0002)
1541 #define _dsp_mfhi(reg) _dsp_mfxxx((reg << 21) | 0x0000)
1542
1543 #define _dsp_mtlo(val, reg) _dsp_mtxxx(val, ((reg << 11) | 0x0002))
1544 #define _dsp_mthi(val, reg) _dsp_mtxxx(val, ((reg << 11) | 0x0000))
1545
1546 #define mflo0() _dsp_mflo(0)
1547 #define mflo1() _dsp_mflo(1)
1548 #define mflo2() _dsp_mflo(2)
1549 #define mflo3() _dsp_mflo(3)
1550
1551 #define mfhi0() _dsp_mfhi(0)
1552 #define mfhi1() _dsp_mfhi(1)
1553 #define mfhi2() _dsp_mfhi(2)
1554 #define mfhi3() _dsp_mfhi(3)
1555
1556 #define mtlo0(x) _dsp_mtlo(x, 0)
1557 #define mtlo1(x) _dsp_mtlo(x, 1)
1558 #define mtlo2(x) _dsp_mtlo(x, 2)
1559 #define mtlo3(x) _dsp_mtlo(x, 3)
1560
1561 #define mthi0(x) _dsp_mthi(x, 0)
1562 #define mthi1(x) _dsp_mthi(x, 1)
1563 #define mthi2(x) _dsp_mthi(x, 2)
1564 #define mthi3(x) _dsp_mthi(x, 3)
1565
1566 #endif /* CONFIG_CPU_MICROMIPS */
1567 #endif
1568
1569 /*
1570  * TLB operations.
1571  *
1572  * It is responsibility of the caller to take care of any TLB hazards.
1573  */
1574 static inline void tlb_probe(void)
1575 {
1576         __asm__ __volatile__(
1577                 ".set noreorder\n\t"
1578                 "tlbp\n\t"
1579                 ".set reorder");
1580 }
1581
1582 static inline void tlb_read(void)
1583 {
1584 #if MIPS34K_MISSED_ITLB_WAR
1585         int res = 0;
1586
1587         __asm__ __volatile__(
1588         "       .set    push                                    \n"
1589         "       .set    noreorder                               \n"
1590         "       .set    noat                                    \n"
1591         "       .set    mips32r2                                \n"
1592         "       .word   0x41610001              # dvpe $1       \n"
1593         "       move    %0, $1                                  \n"
1594         "       ehb                                             \n"
1595         "       .set    pop                                     \n"
1596         : "=r" (res));
1597
1598         instruction_hazard();
1599 #endif
1600
1601         __asm__ __volatile__(
1602                 ".set noreorder\n\t"
1603                 "tlbr\n\t"
1604                 ".set reorder");
1605
1606 #if MIPS34K_MISSED_ITLB_WAR
1607         if ((res & _ULCAST_(1)))
1608                 __asm__ __volatile__(
1609                 "       .set    push                            \n"
1610                 "       .set    noreorder                       \n"
1611                 "       .set    noat                            \n"
1612                 "       .set    mips32r2                        \n"
1613                 "       .word   0x41600021      # evpe          \n"
1614                 "       ehb                                     \n"
1615                 "       .set    pop                             \n");
1616 #endif
1617 }
1618
1619 static inline void tlb_write_indexed(void)
1620 {
1621         __asm__ __volatile__(
1622                 ".set noreorder\n\t"
1623                 "tlbwi\n\t"
1624                 ".set reorder");
1625 }
1626
1627 static inline void tlb_write_random(void)
1628 {
1629         __asm__ __volatile__(
1630                 ".set noreorder\n\t"
1631                 "tlbwr\n\t"
1632                 ".set reorder");
1633 }
1634
1635 /*
1636  * Manipulate bits in a c0 register.
1637  */
1638 #ifndef CONFIG_MIPS_MT_SMTC
1639 /*
1640  * SMTC Linux requires shutting-down microthread scheduling
1641  * during CP0 register read-modify-write sequences.
1642  */
1643 #define __BUILD_SET_C0(name)                                    \
1644 static inline unsigned int                                      \
1645 set_c0_##name(unsigned int set)                                 \
1646 {                                                               \
1647         unsigned int res, new;                                  \
1648                                                                 \
1649         res = read_c0_##name();                                 \
1650         new = res | set;                                        \
1651         write_c0_##name(new);                                   \
1652                                                                 \
1653         return res;                                             \
1654 }                                                               \
1655                                                                 \
1656 static inline unsigned int                                      \
1657 clear_c0_##name(unsigned int clear)                             \
1658 {                                                               \
1659         unsigned int res, new;                                  \
1660                                                                 \
1661         res = read_c0_##name();                                 \
1662         new = res & ~clear;                                     \
1663         write_c0_##name(new);                                   \
1664                                                                 \
1665         return res;                                             \
1666 }                                                               \
1667                                                                 \
1668 static inline unsigned int                                      \
1669 change_c0_##name(unsigned int change, unsigned int val)         \
1670 {                                                               \
1671         unsigned int res, new;                                  \
1672                                                                 \
1673         res = read_c0_##name();                                 \
1674         new = res & ~change;                                    \
1675         new |= (val & change);                                  \
1676         write_c0_##name(new);                                   \
1677                                                                 \
1678         return res;                                             \
1679 }
1680
1681 #else /* SMTC versions that manage MT scheduling */
1682
1683 #include <linux/irqflags.h>
1684
1685 /*
1686  * This is a duplicate of dmt() in mipsmtregs.h to avoid problems with
1687  * header file recursion.
1688  */
1689 static inline unsigned int __dmt(void)
1690 {
1691         int res;
1692
1693         __asm__ __volatile__(
1694         "       .set    push                                            \n"
1695         "       .set    mips32r2                                        \n"
1696         "       .set    noat                                            \n"
1697         "       .word   0x41610BC1                      # dmt $1        \n"
1698         "       ehb                                                     \n"
1699         "       move    %0, $1                                          \n"
1700         "       .set    pop                                             \n"
1701         : "=r" (res));
1702
1703         instruction_hazard();
1704
1705         return res;
1706 }
1707
1708 #define __VPECONTROL_TE_SHIFT   15
1709 #define __VPECONTROL_TE         (1UL << __VPECONTROL_TE_SHIFT)
1710
1711 #define __EMT_ENABLE            __VPECONTROL_TE
1712
1713 static inline void __emt(unsigned int previous)
1714 {
1715         if ((previous & __EMT_ENABLE))
1716                 __asm__ __volatile__(
1717                 "       .set    mips32r2                                \n"
1718                 "       .word   0x41600be1              # emt           \n"
1719                 "       ehb                                             \n"
1720                 "       .set    mips0                                   \n");
1721 }
1722
1723 static inline void __ehb(void)
1724 {
1725         __asm__ __volatile__(
1726         "       .set    mips32r2                                        \n"
1727         "       ehb                                                     \n"             "       .set    mips0                                           \n");
1728 }
1729
1730 /*
1731  * Note that local_irq_save/restore affect TC-specific IXMT state,
1732  * not Status.IE as in non-SMTC kernel.
1733  */
1734
1735 #define __BUILD_SET_C0(name)                                    \
1736 static inline unsigned int                                      \
1737 set_c0_##name(unsigned int set)                                 \
1738 {                                                               \
1739         unsigned int res;                                       \
1740         unsigned int new;                                       \
1741         unsigned int omt;                                       \
1742         unsigned long flags;                                    \
1743                                                                 \
1744         local_irq_save(flags);                                  \
1745         omt = __dmt();                                          \
1746         res = read_c0_##name();                                 \
1747         new = res | set;                                        \
1748         write_c0_##name(new);                                   \
1749         __emt(omt);                                             \
1750         local_irq_restore(flags);                               \
1751                                                                 \
1752         return res;                                             \
1753 }                                                               \
1754                                                                 \
1755 static inline unsigned int                                      \
1756 clear_c0_##name(unsigned int clear)                             \
1757 {                                                               \
1758         unsigned int res;                                       \
1759         unsigned int new;                                       \
1760         unsigned int omt;                                       \
1761         unsigned long flags;                                    \
1762                                                                 \
1763         local_irq_save(flags);                                  \
1764         omt = __dmt();                                          \
1765         res = read_c0_##name();                                 \
1766         new = res & ~clear;                                     \
1767         write_c0_##name(new);                                   \
1768         __emt(omt);                                             \
1769         local_irq_restore(flags);                               \
1770                                                                 \
1771         return res;                                             \
1772 }                                                               \
1773                                                                 \
1774 static inline unsigned int                                      \
1775 change_c0_##name(unsigned int change, unsigned int newbits)     \
1776 {                                                               \
1777         unsigned int res;                                       \
1778         unsigned int new;                                       \
1779         unsigned int omt;                                       \
1780         unsigned long flags;                                    \
1781                                                                 \
1782         local_irq_save(flags);                                  \
1783                                                                 \
1784         omt = __dmt();                                          \
1785         res = read_c0_##name();                                 \
1786         new = res & ~change;                                    \
1787         new |= (newbits & change);                              \
1788         write_c0_##name(new);                                   \
1789         __emt(omt);                                             \
1790         local_irq_restore(flags);                               \
1791                                                                 \
1792         return res;                                             \
1793 }
1794 #endif
1795
1796 __BUILD_SET_C0(status)
1797 __BUILD_SET_C0(cause)
1798 __BUILD_SET_C0(config)
1799 __BUILD_SET_C0(intcontrol)
1800 __BUILD_SET_C0(intctl)
1801 __BUILD_SET_C0(srsmap)
1802 __BUILD_SET_C0(brcm_config_0)
1803 __BUILD_SET_C0(brcm_bus_pll)
1804 __BUILD_SET_C0(brcm_reset)
1805 __BUILD_SET_C0(brcm_cmt_intr)
1806 __BUILD_SET_C0(brcm_cmt_ctrl)
1807 __BUILD_SET_C0(brcm_config)
1808 __BUILD_SET_C0(brcm_mode)
1809
1810 #endif /* !__ASSEMBLY__ */
1811
1812 #endif /* _ASM_MIPSREGS_H */