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_SHF	7
 572#define MIPS_CONF1_DA_SZ	3
 573#define MIPS_CONF1_DA		(_ULCAST_(7) <<	 7)
 574#define MIPS_CONF1_DL_SHF	10
 575#define MIPS_CONF1_DL_SZ	3
 576#define MIPS_CONF1_DL		(_ULCAST_(7) << 10)
 577#define MIPS_CONF1_DS_SHF	13
 578#define MIPS_CONF1_DS_SZ	3
 579#define MIPS_CONF1_DS		(_ULCAST_(7) << 13)
 580#define MIPS_CONF1_IA_SHF	16
 581#define MIPS_CONF1_IA_SZ	3
 582#define MIPS_CONF1_IA		(_ULCAST_(7) << 16)
 583#define MIPS_CONF1_IL_SHF	19
 584#define MIPS_CONF1_IL_SZ	3
 585#define MIPS_CONF1_IL		(_ULCAST_(7) << 19)
 586#define MIPS_CONF1_IS_SHF	22
 587#define MIPS_CONF1_IS_SZ	3
 588#define MIPS_CONF1_IS		(_ULCAST_(7) << 22)
 589#define MIPS_CONF1_TLBS_SHIFT   (25)
 590#define MIPS_CONF1_TLBS_SIZE    (6)
 591#define MIPS_CONF1_TLBS         (_ULCAST_(63) << MIPS_CONF1_TLBS_SHIFT)
 592
 593#define MIPS_CONF2_SA		(_ULCAST_(15)<<	 0)
 594#define MIPS_CONF2_SL		(_ULCAST_(15)<<	 4)
 595#define MIPS_CONF2_SS		(_ULCAST_(15)<<	 8)
 596#define MIPS_CONF2_SU		(_ULCAST_(15)<< 12)
 597#define MIPS_CONF2_TA		(_ULCAST_(15)<< 16)
 598#define MIPS_CONF2_TL		(_ULCAST_(15)<< 20)
 599#define MIPS_CONF2_TS		(_ULCAST_(15)<< 24)
 600#define MIPS_CONF2_TU		(_ULCAST_(7) << 28)
 601
 602#define MIPS_CONF3_TL		(_ULCAST_(1) <<	 0)
 603#define MIPS_CONF3_SM		(_ULCAST_(1) <<	 1)
 604#define MIPS_CONF3_MT		(_ULCAST_(1) <<	 2)
 605#define MIPS_CONF3_CDMM		(_ULCAST_(1) <<	 3)
 606#define MIPS_CONF3_SP		(_ULCAST_(1) <<	 4)
 607#define MIPS_CONF3_VINT		(_ULCAST_(1) <<	 5)
 608#define MIPS_CONF3_VEIC		(_ULCAST_(1) <<	 6)
 609#define MIPS_CONF3_LPA		(_ULCAST_(1) <<	 7)
 610#define MIPS_CONF3_ITL		(_ULCAST_(1) <<	 8)
 611#define MIPS_CONF3_CTXTC	(_ULCAST_(1) <<	 9)
 612#define MIPS_CONF3_DSP		(_ULCAST_(1) << 10)
 613#define MIPS_CONF3_DSP2P	(_ULCAST_(1) << 11)
 614#define MIPS_CONF3_RXI		(_ULCAST_(1) << 12)
 615#define MIPS_CONF3_ULRI		(_ULCAST_(1) << 13)
 616#define MIPS_CONF3_ISA		(_ULCAST_(3) << 14)
 617#define MIPS_CONF3_ISA_OE	(_ULCAST_(1) << 16)
 618#define MIPS_CONF3_MCU		(_ULCAST_(1) << 17)
 619#define MIPS_CONF3_MMAR		(_ULCAST_(7) << 18)
 620#define MIPS_CONF3_IPLW		(_ULCAST_(3) << 21)
 621#define MIPS_CONF3_VZ		(_ULCAST_(1) << 23)
 622#define MIPS_CONF3_PW		(_ULCAST_(1) << 24)
 623#define MIPS_CONF3_SC		(_ULCAST_(1) << 25)
 624#define MIPS_CONF3_BI		(_ULCAST_(1) << 26)
 625#define MIPS_CONF3_BP		(_ULCAST_(1) << 27)
 626#define MIPS_CONF3_MSA		(_ULCAST_(1) << 28)
 627#define MIPS_CONF3_CMGCR	(_ULCAST_(1) << 29)
 628#define MIPS_CONF3_BPG		(_ULCAST_(1) << 30)
 629
 630#define MIPS_CONF4_MMUSIZEEXT_SHIFT	(0)
 631#define MIPS_CONF4_MMUSIZEEXT	(_ULCAST_(255) << 0)
 632#define MIPS_CONF4_FTLBSETS_SHIFT	(0)
 633#define MIPS_CONF4_FTLBSETS_SHIFT	(0)
 634#define MIPS_CONF4_FTLBSETS	(_ULCAST_(15) << MIPS_CONF4_FTLBSETS_SHIFT)
 635#define MIPS_CONF4_FTLBWAYS_SHIFT	(4)
 636#define MIPS_CONF4_FTLBWAYS	(_ULCAST_(15) << MIPS_CONF4_FTLBWAYS_SHIFT)
 637#define MIPS_CONF4_FTLBPAGESIZE_SHIFT	(8)
 638/* bits 10:8 in FTLB-only configurations */
 639#define MIPS_CONF4_FTLBPAGESIZE (_ULCAST_(7) << MIPS_CONF4_FTLBPAGESIZE_SHIFT)
 640/* bits 12:8 in VTLB-FTLB only configurations */
 641#define MIPS_CONF4_VFTLBPAGESIZE (_ULCAST_(31) << MIPS_CONF4_FTLBPAGESIZE_SHIFT)
 642#define MIPS_CONF4_MMUEXTDEF	(_ULCAST_(3) << 14)
 643#define MIPS_CONF4_MMUEXTDEF_MMUSIZEEXT (_ULCAST_(1) << 14)
 644#define MIPS_CONF4_MMUEXTDEF_FTLBSIZEEXT	(_ULCAST_(2) << 14)
 645#define MIPS_CONF4_MMUEXTDEF_VTLBSIZEEXT	(_ULCAST_(3) << 14)
 646#define MIPS_CONF4_KSCREXIST	(_ULCAST_(255) << 16)
 647#define MIPS_CONF4_VTLBSIZEEXT_SHIFT	(24)
 648#define MIPS_CONF4_VTLBSIZEEXT	(_ULCAST_(15) << MIPS_CONF4_VTLBSIZEEXT_SHIFT)
 649#define MIPS_CONF4_AE		(_ULCAST_(1) << 28)
 650#define MIPS_CONF4_IE		(_ULCAST_(3) << 29)
 651#define MIPS_CONF4_TLBINV	(_ULCAST_(2) << 29)
 652
 653#define MIPS_CONF5_NF		(_ULCAST_(1) << 0)
 654#define MIPS_CONF5_UFR		(_ULCAST_(1) << 2)
 
 
 
 
 
 655#define MIPS_CONF5_MSAEN	(_ULCAST_(1) << 27)
 656#define MIPS_CONF5_EVA		(_ULCAST_(1) << 28)
 657#define MIPS_CONF5_CV		(_ULCAST_(1) << 29)
 658#define MIPS_CONF5_K		(_ULCAST_(1) << 30)
 659
 660#define MIPS_CONF6_SYND		(_ULCAST_(1) << 13)
 661/* proAptiv FTLB on/off bit */
 662#define MIPS_CONF6_FTLBEN	(_ULCAST_(1) << 15)
 
 
 663
 664#define MIPS_CONF7_WII		(_ULCAST_(1) << 31)
 665
 666#define MIPS_CONF7_RPS		(_ULCAST_(1) << 2)
 667
 668#define MIPS_CONF7_IAR		(_ULCAST_(1) << 10)
 669#define MIPS_CONF7_AR		(_ULCAST_(1) << 16)
 
 
 670
 671/*  EntryHI bit definition */
 672#define MIPS_ENTRYHI_EHINV	(_ULCAST_(1) << 10)
 
 
 
 673
 674/* CMGCRBase bit definitions */
 675#define MIPS_CMGCRB_BASE	11
 676#define MIPS_CMGCRF_BASE	(~_ULCAST_((1 << MIPS_CMGCRB_BASE) - 1))
 677
 678/*
 679 * Bits in the MIPS32/64 coprocessor 1 (FPU) revision register.
 680 */
 681#define MIPS_FPIR_S		(_ULCAST_(1) << 16)
 682#define MIPS_FPIR_D		(_ULCAST_(1) << 17)
 683#define MIPS_FPIR_PS		(_ULCAST_(1) << 18)
 684#define MIPS_FPIR_3D		(_ULCAST_(1) << 19)
 685#define MIPS_FPIR_W		(_ULCAST_(1) << 20)
 686#define MIPS_FPIR_L		(_ULCAST_(1) << 21)
 687#define MIPS_FPIR_F64		(_ULCAST_(1) << 22)
 688
 689/*
 690 * Bits in the MIPS32 Memory Segmentation registers.
 691 */
 692#define MIPS_SEGCFG_PA_SHIFT	9
 693#define MIPS_SEGCFG_PA		(_ULCAST_(127) << MIPS_SEGCFG_PA_SHIFT)
 694#define MIPS_SEGCFG_AM_SHIFT	4
 695#define MIPS_SEGCFG_AM		(_ULCAST_(7) << MIPS_SEGCFG_AM_SHIFT)
 696#define MIPS_SEGCFG_EU_SHIFT	3
 697#define MIPS_SEGCFG_EU		(_ULCAST_(1) << MIPS_SEGCFG_EU_SHIFT)
 698#define MIPS_SEGCFG_C_SHIFT	0
 699#define MIPS_SEGCFG_C		(_ULCAST_(7) << MIPS_SEGCFG_C_SHIFT)
 700
 701#define MIPS_SEGCFG_UUSK	_ULCAST_(7)
 702#define MIPS_SEGCFG_USK		_ULCAST_(5)
 703#define MIPS_SEGCFG_MUSUK	_ULCAST_(4)
 704#define MIPS_SEGCFG_MUSK	_ULCAST_(3)
 705#define MIPS_SEGCFG_MSK		_ULCAST_(2)
 706#define MIPS_SEGCFG_MK		_ULCAST_(1)
 707#define MIPS_SEGCFG_UK		_ULCAST_(0)
 708
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 709#ifndef __ASSEMBLY__
 710
 711/*
 712 * Macros for handling the ISA mode bit for microMIPS.
 713 */
 
 
 714#define get_isa16_mode(x)		((x) & 0x1)
 715#define msk_isa16_mode(x)		((x) & ~0x1)
 716#define set_isa16_mode(x)		do { (x) |= 0x1; } while(0)
 
 
 
 
 
 717
 718/*
 719 * microMIPS instructions can be 16-bit or 32-bit in length. This
 720 * returns a 1 if the instruction is 16-bit and a 0 if 32-bit.
 721 */
 722static inline int mm_insn_16bit(u16 insn)
 723{
 724	u16 opcode = (insn >> 10) & 0x7;
 725
 726	return (opcode >= 1 && opcode <= 3) ? 1 : 0;
 727}
 728
 729/*
 730 * TLB Invalidate Flush
 731 */
 732static inline void tlbinvf(void)
 733{
 734	__asm__ __volatile__(
 735		".set push\n\t"
 736		".set noreorder\n\t"
 737		".word 0x42000004\n\t" /* tlbinvf */
 738		".set pop");
 739}
 740
 741
 742/*
 743 * Functions to access the R10000 performance counters.	 These are basically
 744 * mfc0 and mtc0 instructions from and to coprocessor register with a 5-bit
 745 * performance counter number encoded into bits 1 ... 5 of the instruction.
 746 * Only performance counters 0 to 1 actually exist, so for a non-R10000 aware
 747 * disassembler these will look like an access to sel 0 or 1.
 748 */
 749#define read_r10k_perf_cntr(counter)				\
 750({								\
 751	unsigned int __res;					\
 752	__asm__ __volatile__(					\
 753	"mfpc\t%0, %1"						\
 754	: "=r" (__res)						\
 755	: "i" (counter));					\
 756								\
 757	__res;							\
 758})
 759
 760#define write_r10k_perf_cntr(counter,val)			\
 761do {								\
 762	__asm__ __volatile__(					\
 763	"mtpc\t%0, %1"						\
 764	:							\
 765	: "r" (val), "i" (counter));				\
 766} while (0)
 767
 768#define read_r10k_perf_event(counter)				\
 769({								\
 770	unsigned int __res;					\
 771	__asm__ __volatile__(					\
 772	"mfps\t%0, %1"						\
 773	: "=r" (__res)						\
 774	: "i" (counter));					\
 775								\
 776	__res;							\
 777})
 778
 779#define write_r10k_perf_cntl(counter,val)			\
 780do {								\
 781	__asm__ __volatile__(					\
 782	"mtps\t%0, %1"						\
 783	:							\
 784	: "r" (val), "i" (counter));				\
 785} while (0)
 786
 787
 788/*
 789 * Macros to access the system control coprocessor
 790 */
 791
 792#define __read_32bit_c0_register(source, sel)				\
 793({ int __res;								\
 794	if (sel == 0)							\
 795		__asm__ __volatile__(					\
 796			"mfc0\t%0, " #source "\n\t"			\
 797			: "=r" (__res));				\
 798	else								\
 799		__asm__ __volatile__(					\
 800			".set\tmips32\n\t"				\
 801			"mfc0\t%0, " #source ", " #sel "\n\t"		\
 802			".set\tmips0\n\t"				\
 803			: "=r" (__res));				\
 804	__res;								\
 805})
 806
 807#define __read_64bit_c0_register(source, sel)				\
 808({ unsigned long long __res;						\
 809	if (sizeof(unsigned long) == 4)					\
 810		__res = __read_64bit_c0_split(source, sel);		\
 811	else if (sel == 0)						\
 812		__asm__ __volatile__(					\
 813			".set\tmips3\n\t"				\
 814			"dmfc0\t%0, " #source "\n\t"			\
 815			".set\tmips0"					\
 816			: "=r" (__res));				\
 817	else								\
 818		__asm__ __volatile__(					\
 819			".set\tmips64\n\t"				\
 820			"dmfc0\t%0, " #source ", " #sel "\n\t"		\
 821			".set\tmips0"					\
 822			: "=r" (__res));				\
 823	__res;								\
 824})
 825
 826#define __write_32bit_c0_register(register, sel, value)			\
 827do {									\
 828	if (sel == 0)							\
 829		__asm__ __volatile__(					\
 830			"mtc0\t%z0, " #register "\n\t"			\
 831			: : "Jr" ((unsigned int)(value)));		\
 832	else								\
 833		__asm__ __volatile__(					\
 834			".set\tmips32\n\t"				\
 835			"mtc0\t%z0, " #register ", " #sel "\n\t"	\
 836			".set\tmips0"					\
 837			: : "Jr" ((unsigned int)(value)));		\
 838} while (0)
 839
 840#define __write_64bit_c0_register(register, sel, value)			\
 841do {									\
 842	if (sizeof(unsigned long) == 4)					\
 843		__write_64bit_c0_split(register, sel, value);		\
 844	else if (sel == 0)						\
 845		__asm__ __volatile__(					\
 846			".set\tmips3\n\t"				\
 847			"dmtc0\t%z0, " #register "\n\t"			\
 848			".set\tmips0"					\
 849			: : "Jr" (value));				\
 850	else								\
 851		__asm__ __volatile__(					\
 852			".set\tmips64\n\t"				\
 853			"dmtc0\t%z0, " #register ", " #sel "\n\t"	\
 854			".set\tmips0"					\
 855			: : "Jr" (value));				\
 856} while (0)
 857
 858#define __read_ulong_c0_register(reg, sel)				\
 859	((sizeof(unsigned long) == 4) ?					\
 860	(unsigned long) __read_32bit_c0_register(reg, sel) :		\
 861	(unsigned long) __read_64bit_c0_register(reg, sel))
 862
 863#define __write_ulong_c0_register(reg, sel, val)			\
 864do {									\
 865	if (sizeof(unsigned long) == 4)					\
 866		__write_32bit_c0_register(reg, sel, val);		\
 867	else								\
 868		__write_64bit_c0_register(reg, sel, val);		\
 869} while (0)
 870
 871/*
 872 * On RM7000/RM9000 these are uses to access cop0 set 1 registers
 873 */
 874#define __read_32bit_c0_ctrl_register(source)				\
 875({ int __res;								\
 876	__asm__ __volatile__(						\
 877		"cfc0\t%0, " #source "\n\t"				\
 878		: "=r" (__res));					\
 879	__res;								\
 880})
 881
 882#define __write_32bit_c0_ctrl_register(register, value)			\
 883do {									\
 884	__asm__ __volatile__(						\
 885		"ctc0\t%z0, " #register "\n\t"				\
 886		: : "Jr" ((unsigned int)(value)));			\
 887} while (0)
 888
 889/*
 890 * These versions are only needed for systems with more than 38 bits of
 891 * physical address space running the 32-bit kernel.  That's none atm :-)
 892 */
 893#define __read_64bit_c0_split(source, sel)				\
 894({									\
 895	unsigned long long __val;					\
 896	unsigned long __flags;						\
 897									\
 898	local_irq_save(__flags);					\
 899	if (sel == 0)							\
 900		__asm__ __volatile__(					\
 901			".set\tmips64\n\t"				\
 902			"dmfc0\t%M0, " #source "\n\t"			\
 903			"dsll\t%L0, %M0, 32\n\t"			\
 904			"dsra\t%M0, %M0, 32\n\t"			\
 905			"dsra\t%L0, %L0, 32\n\t"			\
 906			".set\tmips0"					\
 907			: "=r" (__val));				\
 908	else								\
 909		__asm__ __volatile__(					\
 910			".set\tmips64\n\t"				\
 911			"dmfc0\t%M0, " #source ", " #sel "\n\t"		\
 912			"dsll\t%L0, %M0, 32\n\t"			\
 913			"dsra\t%M0, %M0, 32\n\t"			\
 914			"dsra\t%L0, %L0, 32\n\t"			\
 915			".set\tmips0"					\
 916			: "=r" (__val));				\
 917	local_irq_restore(__flags);					\
 918									\
 919	__val;								\
 920})
 921
 922#define __write_64bit_c0_split(source, sel, val)			\
 923do {									\
 924	unsigned long __flags;						\
 925									\
 926	local_irq_save(__flags);					\
 927	if (sel == 0)							\
 928		__asm__ __volatile__(					\
 929			".set\tmips64\n\t"				\
 930			"dsll\t%L0, %L0, 32\n\t"			\
 931			"dsrl\t%L0, %L0, 32\n\t"			\
 932			"dsll\t%M0, %M0, 32\n\t"			\
 933			"or\t%L0, %L0, %M0\n\t"				\
 934			"dmtc0\t%L0, " #source "\n\t"			\
 935			".set\tmips0"					\
 936			: : "r" (val));					\
 937	else								\
 938		__asm__ __volatile__(					\
 939			".set\tmips64\n\t"				\
 940			"dsll\t%L0, %L0, 32\n\t"			\
 941			"dsrl\t%L0, %L0, 32\n\t"			\
 942			"dsll\t%M0, %M0, 32\n\t"			\
 943			"or\t%L0, %L0, %M0\n\t"				\
 944			"dmtc0\t%L0, " #source ", " #sel "\n\t"		\
 945			".set\tmips0"					\
 946			: : "r" (val));					\
 947	local_irq_restore(__flags);					\
 948} while (0)
 949
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 950#define read_c0_index()		__read_32bit_c0_register($0, 0)
 951#define write_c0_index(val)	__write_32bit_c0_register($0, 0, val)
 952
 953#define read_c0_random()	__read_32bit_c0_register($1, 0)
 954#define write_c0_random(val)	__write_32bit_c0_register($1, 0, val)
 955
 956#define read_c0_entrylo0()	__read_ulong_c0_register($2, 0)
 957#define write_c0_entrylo0(val)	__write_ulong_c0_register($2, 0, val)
 958
 
 
 
 959#define read_c0_entrylo1()	__read_ulong_c0_register($3, 0)
 960#define write_c0_entrylo1(val)	__write_ulong_c0_register($3, 0, val)
 961
 
 
 
 962#define read_c0_conf()		__read_32bit_c0_register($3, 0)
 963#define write_c0_conf(val)	__write_32bit_c0_register($3, 0, val)
 964
 965#define read_c0_context()	__read_ulong_c0_register($4, 0)
 966#define write_c0_context(val)	__write_ulong_c0_register($4, 0, val)
 967
 968#define read_c0_userlocal()	__read_ulong_c0_register($4, 2)
 969#define write_c0_userlocal(val) __write_ulong_c0_register($4, 2, val)
 970
 971#define read_c0_pagemask()	__read_32bit_c0_register($5, 0)
 972#define write_c0_pagemask(val)	__write_32bit_c0_register($5, 0, val)
 973
 974#define read_c0_pagegrain()	__read_32bit_c0_register($5, 1)
 975#define write_c0_pagegrain(val) __write_32bit_c0_register($5, 1, val)
 976
 977#define read_c0_wired()		__read_32bit_c0_register($6, 0)
 978#define write_c0_wired(val)	__write_32bit_c0_register($6, 0, val)
 979
 980#define read_c0_info()		__read_32bit_c0_register($7, 0)
 981
 982#define read_c0_cache()		__read_32bit_c0_register($7, 0) /* TX39xx */
 983#define write_c0_cache(val)	__write_32bit_c0_register($7, 0, val)
 984
 985#define read_c0_badvaddr()	__read_ulong_c0_register($8, 0)
 986#define write_c0_badvaddr(val)	__write_ulong_c0_register($8, 0, val)
 987
 988#define read_c0_count()		__read_32bit_c0_register($9, 0)
 989#define write_c0_count(val)	__write_32bit_c0_register($9, 0, val)
 990
 991#define read_c0_count2()	__read_32bit_c0_register($9, 6) /* pnx8550 */
 992#define write_c0_count2(val)	__write_32bit_c0_register($9, 6, val)
 993
 994#define read_c0_count3()	__read_32bit_c0_register($9, 7) /* pnx8550 */
 995#define write_c0_count3(val)	__write_32bit_c0_register($9, 7, val)
 996
 997#define read_c0_entryhi()	__read_ulong_c0_register($10, 0)
 998#define write_c0_entryhi(val)	__write_ulong_c0_register($10, 0, val)
 999
1000#define read_c0_compare()	__read_32bit_c0_register($11, 0)
1001#define write_c0_compare(val)	__write_32bit_c0_register($11, 0, val)
1002
1003#define read_c0_compare2()	__read_32bit_c0_register($11, 6) /* pnx8550 */
1004#define write_c0_compare2(val)	__write_32bit_c0_register($11, 6, val)
1005
1006#define read_c0_compare3()	__read_32bit_c0_register($11, 7) /* pnx8550 */
1007#define write_c0_compare3(val)	__write_32bit_c0_register($11, 7, val)
1008
1009#define read_c0_status()	__read_32bit_c0_register($12, 0)
1010#ifdef CONFIG_MIPS_MT_SMTC
1011#define write_c0_status(val)						\
1012do {									\
1013	__write_32bit_c0_register($12, 0, val);				\
1014	__ehb();							\
1015} while (0)
1016#else
1017/*
1018 * Legacy non-SMTC code, which may be hazardous
1019 * but which might not support EHB
1020 */
1021#define write_c0_status(val)	__write_32bit_c0_register($12, 0, val)
1022#endif /* CONFIG_MIPS_MT_SMTC */
1023
1024#define read_c0_cause()		__read_32bit_c0_register($13, 0)
1025#define write_c0_cause(val)	__write_32bit_c0_register($13, 0, val)
1026
1027#define read_c0_epc()		__read_ulong_c0_register($14, 0)
1028#define write_c0_epc(val)	__write_ulong_c0_register($14, 0, val)
1029
1030#define read_c0_prid()		__read_32bit_c0_register($15, 0)
1031
1032#define read_c0_cmgcrbase()	__read_ulong_c0_register($15, 3)
1033
1034#define read_c0_config()	__read_32bit_c0_register($16, 0)
1035#define read_c0_config1()	__read_32bit_c0_register($16, 1)
1036#define read_c0_config2()	__read_32bit_c0_register($16, 2)
1037#define read_c0_config3()	__read_32bit_c0_register($16, 3)
1038#define read_c0_config4()	__read_32bit_c0_register($16, 4)
1039#define read_c0_config5()	__read_32bit_c0_register($16, 5)
1040#define read_c0_config6()	__read_32bit_c0_register($16, 6)
1041#define read_c0_config7()	__read_32bit_c0_register($16, 7)
1042#define write_c0_config(val)	__write_32bit_c0_register($16, 0, val)
1043#define write_c0_config1(val)	__write_32bit_c0_register($16, 1, val)
1044#define write_c0_config2(val)	__write_32bit_c0_register($16, 2, val)
1045#define write_c0_config3(val)	__write_32bit_c0_register($16, 3, val)
1046#define write_c0_config4(val)	__write_32bit_c0_register($16, 4, val)
1047#define write_c0_config5(val)	__write_32bit_c0_register($16, 5, val)
1048#define write_c0_config6(val)	__write_32bit_c0_register($16, 6, val)
1049#define write_c0_config7(val)	__write_32bit_c0_register($16, 7, val)
1050
 
 
 
 
 
 
 
1051/*
1052 * The WatchLo register.  There may be up to 8 of them.
1053 */
1054#define read_c0_watchlo0()	__read_ulong_c0_register($18, 0)
1055#define read_c0_watchlo1()	__read_ulong_c0_register($18, 1)
1056#define read_c0_watchlo2()	__read_ulong_c0_register($18, 2)
1057#define read_c0_watchlo3()	__read_ulong_c0_register($18, 3)
1058#define read_c0_watchlo4()	__read_ulong_c0_register($18, 4)
1059#define read_c0_watchlo5()	__read_ulong_c0_register($18, 5)
1060#define read_c0_watchlo6()	__read_ulong_c0_register($18, 6)
1061#define read_c0_watchlo7()	__read_ulong_c0_register($18, 7)
1062#define write_c0_watchlo0(val)	__write_ulong_c0_register($18, 0, val)
1063#define write_c0_watchlo1(val)	__write_ulong_c0_register($18, 1, val)
1064#define write_c0_watchlo2(val)	__write_ulong_c0_register($18, 2, val)
1065#define write_c0_watchlo3(val)	__write_ulong_c0_register($18, 3, val)
1066#define write_c0_watchlo4(val)	__write_ulong_c0_register($18, 4, val)
1067#define write_c0_watchlo5(val)	__write_ulong_c0_register($18, 5, val)
1068#define write_c0_watchlo6(val)	__write_ulong_c0_register($18, 6, val)
1069#define write_c0_watchlo7(val)	__write_ulong_c0_register($18, 7, val)
1070
1071/*
1072 * The WatchHi register.  There may be up to 8 of them.
1073 */
1074#define read_c0_watchhi0()	__read_32bit_c0_register($19, 0)
1075#define read_c0_watchhi1()	__read_32bit_c0_register($19, 1)
1076#define read_c0_watchhi2()	__read_32bit_c0_register($19, 2)
1077#define read_c0_watchhi3()	__read_32bit_c0_register($19, 3)
1078#define read_c0_watchhi4()	__read_32bit_c0_register($19, 4)
1079#define read_c0_watchhi5()	__read_32bit_c0_register($19, 5)
1080#define read_c0_watchhi6()	__read_32bit_c0_register($19, 6)
1081#define read_c0_watchhi7()	__read_32bit_c0_register($19, 7)
1082
1083#define write_c0_watchhi0(val)	__write_32bit_c0_register($19, 0, val)
1084#define write_c0_watchhi1(val)	__write_32bit_c0_register($19, 1, val)
1085#define write_c0_watchhi2(val)	__write_32bit_c0_register($19, 2, val)
1086#define write_c0_watchhi3(val)	__write_32bit_c0_register($19, 3, val)
1087#define write_c0_watchhi4(val)	__write_32bit_c0_register($19, 4, val)
1088#define write_c0_watchhi5(val)	__write_32bit_c0_register($19, 5, val)
1089#define write_c0_watchhi6(val)	__write_32bit_c0_register($19, 6, val)
1090#define write_c0_watchhi7(val)	__write_32bit_c0_register($19, 7, val)
1091
1092#define read_c0_xcontext()	__read_ulong_c0_register($20, 0)
1093#define write_c0_xcontext(val)	__write_ulong_c0_register($20, 0, val)
1094
1095#define read_c0_intcontrol()	__read_32bit_c0_ctrl_register($20)
1096#define write_c0_intcontrol(val) __write_32bit_c0_ctrl_register($20, val)
1097
1098#define read_c0_framemask()	__read_32bit_c0_register($21, 0)
1099#define write_c0_framemask(val) __write_32bit_c0_register($21, 0, val)
1100
1101#define read_c0_diag()		__read_32bit_c0_register($22, 0)
1102#define write_c0_diag(val)	__write_32bit_c0_register($22, 0, val)
1103
 
 
 
 
1104#define read_c0_diag1()		__read_32bit_c0_register($22, 1)
1105#define write_c0_diag1(val)	__write_32bit_c0_register($22, 1, val)
1106
1107#define read_c0_diag2()		__read_32bit_c0_register($22, 2)
1108#define write_c0_diag2(val)	__write_32bit_c0_register($22, 2, val)
1109
1110#define read_c0_diag3()		__read_32bit_c0_register($22, 3)
1111#define write_c0_diag3(val)	__write_32bit_c0_register($22, 3, val)
1112
1113#define read_c0_diag4()		__read_32bit_c0_register($22, 4)
1114#define write_c0_diag4(val)	__write_32bit_c0_register($22, 4, val)
1115
1116#define read_c0_diag5()		__read_32bit_c0_register($22, 5)
1117#define write_c0_diag5(val)	__write_32bit_c0_register($22, 5, val)
1118
1119#define read_c0_debug()		__read_32bit_c0_register($23, 0)
1120#define write_c0_debug(val)	__write_32bit_c0_register($23, 0, val)
1121
1122#define read_c0_depc()		__read_ulong_c0_register($24, 0)
1123#define write_c0_depc(val)	__write_ulong_c0_register($24, 0, val)
1124
1125/*
1126 * MIPS32 / MIPS64 performance counters
1127 */
1128#define read_c0_perfctrl0()	__read_32bit_c0_register($25, 0)
1129#define write_c0_perfctrl0(val) __write_32bit_c0_register($25, 0, val)
1130#define read_c0_perfcntr0()	__read_32bit_c0_register($25, 1)
1131#define write_c0_perfcntr0(val) __write_32bit_c0_register($25, 1, val)
1132#define read_c0_perfcntr0_64()	__read_64bit_c0_register($25, 1)
1133#define write_c0_perfcntr0_64(val) __write_64bit_c0_register($25, 1, val)
1134#define read_c0_perfctrl1()	__read_32bit_c0_register($25, 2)
1135#define write_c0_perfctrl1(val) __write_32bit_c0_register($25, 2, val)
1136#define read_c0_perfcntr1()	__read_32bit_c0_register($25, 3)
1137#define write_c0_perfcntr1(val) __write_32bit_c0_register($25, 3, val)
1138#define read_c0_perfcntr1_64()	__read_64bit_c0_register($25, 3)
1139#define write_c0_perfcntr1_64(val) __write_64bit_c0_register($25, 3, val)
1140#define read_c0_perfctrl2()	__read_32bit_c0_register($25, 4)
1141#define write_c0_perfctrl2(val) __write_32bit_c0_register($25, 4, val)
1142#define read_c0_perfcntr2()	__read_32bit_c0_register($25, 5)
1143#define write_c0_perfcntr2(val) __write_32bit_c0_register($25, 5, val)
1144#define read_c0_perfcntr2_64()	__read_64bit_c0_register($25, 5)
1145#define write_c0_perfcntr2_64(val) __write_64bit_c0_register($25, 5, val)
1146#define read_c0_perfctrl3()	__read_32bit_c0_register($25, 6)
1147#define write_c0_perfctrl3(val) __write_32bit_c0_register($25, 6, val)
1148#define read_c0_perfcntr3()	__read_32bit_c0_register($25, 7)
1149#define write_c0_perfcntr3(val) __write_32bit_c0_register($25, 7, val)
1150#define read_c0_perfcntr3_64()	__read_64bit_c0_register($25, 7)
1151#define write_c0_perfcntr3_64(val) __write_64bit_c0_register($25, 7, val)
1152
1153#define read_c0_ecc()		__read_32bit_c0_register($26, 0)
1154#define write_c0_ecc(val)	__write_32bit_c0_register($26, 0, val)
1155
1156#define read_c0_derraddr0()	__read_ulong_c0_register($26, 1)
1157#define write_c0_derraddr0(val) __write_ulong_c0_register($26, 1, val)
1158
1159#define read_c0_cacheerr()	__read_32bit_c0_register($27, 0)
1160
1161#define read_c0_derraddr1()	__read_ulong_c0_register($27, 1)
1162#define write_c0_derraddr1(val) __write_ulong_c0_register($27, 1, val)
1163
1164#define read_c0_taglo()		__read_32bit_c0_register($28, 0)
1165#define write_c0_taglo(val)	__write_32bit_c0_register($28, 0, val)
1166
1167#define read_c0_dtaglo()	__read_32bit_c0_register($28, 2)
1168#define write_c0_dtaglo(val)	__write_32bit_c0_register($28, 2, val)
1169
1170#define read_c0_ddatalo()	__read_32bit_c0_register($28, 3)
1171#define write_c0_ddatalo(val)	__write_32bit_c0_register($28, 3, val)
1172
1173#define read_c0_staglo()	__read_32bit_c0_register($28, 4)
1174#define write_c0_staglo(val)	__write_32bit_c0_register($28, 4, val)
1175
1176#define read_c0_taghi()		__read_32bit_c0_register($29, 0)
1177#define write_c0_taghi(val)	__write_32bit_c0_register($29, 0, val)
1178
1179#define read_c0_errorepc()	__read_ulong_c0_register($30, 0)
1180#define write_c0_errorepc(val)	__write_ulong_c0_register($30, 0, val)
1181
1182/* MIPSR2 */
1183#define read_c0_hwrena()	__read_32bit_c0_register($7, 0)
1184#define write_c0_hwrena(val)	__write_32bit_c0_register($7, 0, val)
1185
1186#define read_c0_intctl()	__read_32bit_c0_register($12, 1)
1187#define write_c0_intctl(val)	__write_32bit_c0_register($12, 1, val)
1188
1189#define read_c0_srsctl()	__read_32bit_c0_register($12, 2)
1190#define write_c0_srsctl(val)	__write_32bit_c0_register($12, 2, val)
1191
1192#define read_c0_srsmap()	__read_32bit_c0_register($12, 3)
1193#define write_c0_srsmap(val)	__write_32bit_c0_register($12, 3, val)
1194
1195#define read_c0_ebase()		__read_32bit_c0_register($15, 1)
1196#define write_c0_ebase(val)	__write_32bit_c0_register($15, 1, val)
1197
 
 
 
1198/* MIPSR3 */
1199#define read_c0_segctl0()	__read_32bit_c0_register($5, 2)
1200#define write_c0_segctl0(val)	__write_32bit_c0_register($5, 2, val)
1201
1202#define read_c0_segctl1()	__read_32bit_c0_register($5, 3)
1203#define write_c0_segctl1(val)	__write_32bit_c0_register($5, 3, val)
1204
1205#define read_c0_segctl2()	__read_32bit_c0_register($5, 4)
1206#define write_c0_segctl2(val)	__write_32bit_c0_register($5, 4, val)
1207
 
 
 
 
 
 
 
 
 
 
 
 
 
1208/* Cavium OCTEON (cnMIPS) */
1209#define read_c0_cvmcount()	__read_ulong_c0_register($9, 6)
1210#define write_c0_cvmcount(val)	__write_ulong_c0_register($9, 6, val)
1211
1212#define read_c0_cvmctl()	__read_64bit_c0_register($9, 7)
1213#define write_c0_cvmctl(val)	__write_64bit_c0_register($9, 7, val)
1214
1215#define read_c0_cvmmemctl()	__read_64bit_c0_register($11, 7)
1216#define write_c0_cvmmemctl(val) __write_64bit_c0_register($11, 7, val)
1217/*
1218 * The cacheerr registers are not standardized.	 On OCTEON, they are
1219 * 64 bits wide.
1220 */
1221#define read_octeon_c0_icacheerr()	__read_64bit_c0_register($27, 0)
1222#define write_octeon_c0_icacheerr(val)	__write_64bit_c0_register($27, 0, val)
1223
1224#define read_octeon_c0_dcacheerr()	__read_64bit_c0_register($27, 1)
1225#define write_octeon_c0_dcacheerr(val)	__write_64bit_c0_register($27, 1, val)
1226
1227/* BMIPS3300 */
1228#define read_c0_brcm_config_0()		__read_32bit_c0_register($22, 0)
1229#define write_c0_brcm_config_0(val)	__write_32bit_c0_register($22, 0, val)
1230
1231#define read_c0_brcm_bus_pll()		__read_32bit_c0_register($22, 4)
1232#define write_c0_brcm_bus_pll(val)	__write_32bit_c0_register($22, 4, val)
1233
1234#define read_c0_brcm_reset()		__read_32bit_c0_register($22, 5)
1235#define write_c0_brcm_reset(val)	__write_32bit_c0_register($22, 5, val)
1236
1237/* BMIPS43xx */
1238#define read_c0_brcm_cmt_intr()		__read_32bit_c0_register($22, 1)
1239#define write_c0_brcm_cmt_intr(val)	__write_32bit_c0_register($22, 1, val)
1240
1241#define read_c0_brcm_cmt_ctrl()		__read_32bit_c0_register($22, 2)
1242#define write_c0_brcm_cmt_ctrl(val)	__write_32bit_c0_register($22, 2, val)
1243
1244#define read_c0_brcm_cmt_local()	__read_32bit_c0_register($22, 3)
1245#define write_c0_brcm_cmt_local(val)	__write_32bit_c0_register($22, 3, val)
1246
1247#define read_c0_brcm_config_1()		__read_32bit_c0_register($22, 5)
1248#define write_c0_brcm_config_1(val)	__write_32bit_c0_register($22, 5, val)
1249
1250#define read_c0_brcm_cbr()		__read_32bit_c0_register($22, 6)
1251#define write_c0_brcm_cbr(val)		__write_32bit_c0_register($22, 6, val)
1252
1253/* BMIPS5000 */
1254#define read_c0_brcm_config()		__read_32bit_c0_register($22, 0)
1255#define write_c0_brcm_config(val)	__write_32bit_c0_register($22, 0, val)
1256
1257#define read_c0_brcm_mode()		__read_32bit_c0_register($22, 1)
1258#define write_c0_brcm_mode(val)		__write_32bit_c0_register($22, 1, val)
1259
1260#define read_c0_brcm_action()		__read_32bit_c0_register($22, 2)
1261#define write_c0_brcm_action(val)	__write_32bit_c0_register($22, 2, val)
1262
1263#define read_c0_brcm_edsp()		__read_32bit_c0_register($22, 3)
1264#define write_c0_brcm_edsp(val)		__write_32bit_c0_register($22, 3, val)
1265
1266#define read_c0_brcm_bootvec()		__read_32bit_c0_register($22, 4)
1267#define write_c0_brcm_bootvec(val)	__write_32bit_c0_register($22, 4, val)
1268
1269#define read_c0_brcm_sleepcount()	__read_32bit_c0_register($22, 7)
1270#define write_c0_brcm_sleepcount(val)	__write_32bit_c0_register($22, 7, val)
1271
1272/*
1273 * Macros to access the floating point coprocessor control registers
1274 */
1275#define read_32bit_cp1_register(source)					\
1276({									\
1277	int __res;							\
1278									\
1279	__asm__ __volatile__(						\
1280	"	.set	push					\n"	\
1281	"	.set	reorder					\n"	\
1282	"	# gas fails to assemble cfc1 for some archs,	\n"	\
1283	"	# like Octeon.					\n"	\
1284	"	.set	mips1					\n"	\
 
1285	"	cfc1	%0,"STR(source)"			\n"	\
1286	"	.set	pop					\n"	\
1287	: "=r" (__res));						\
1288	__res;								\
1289})
1290
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1291#ifdef HAVE_AS_DSP
1292#define rddsp(mask)							\
1293({									\
1294	unsigned int __dspctl;						\
1295									\
1296	__asm__ __volatile__(						\
1297	"	.set push					\n"	\
1298	"	.set dsp					\n"	\
1299	"	rddsp	%0, %x1					\n"	\
1300	"	.set pop					\n"	\
1301	: "=r" (__dspctl)						\
1302	: "i" (mask));							\
1303	__dspctl;							\
1304})
1305
1306#define wrdsp(val, mask)						\
1307do {									\
1308	__asm__ __volatile__(						\
1309	"	.set push					\n"	\
1310	"	.set dsp					\n"	\
1311	"	wrdsp	%0, %x1					\n"	\
1312	"	.set pop					\n"	\
1313	:								\
1314	: "r" (val), "i" (mask));					\
1315} while (0)
1316
1317#define mflo0()								\
1318({									\
1319	long mflo0;							\
1320	__asm__(							\
1321	"	.set push					\n"	\
1322	"	.set dsp					\n"	\
1323	"	mflo %0, $ac0					\n"	\
1324	"	.set pop					\n" 	\
1325	: "=r" (mflo0)); 						\
1326	mflo0;								\
1327})
1328
1329#define mflo1()								\
1330({									\
1331	long mflo1;							\
1332	__asm__(							\
1333	"	.set push					\n"	\
1334	"	.set dsp					\n"	\
1335	"	mflo %0, $ac1					\n"	\
1336	"	.set pop					\n" 	\
1337	: "=r" (mflo1)); 						\
1338	mflo1;								\
1339})
1340
1341#define mflo2()								\
1342({									\
1343	long mflo2;							\
1344	__asm__(							\
1345	"	.set push					\n"	\
1346	"	.set dsp					\n"	\
1347	"	mflo %0, $ac2					\n"	\
1348	"	.set pop					\n" 	\
1349	: "=r" (mflo2)); 						\
1350	mflo2;								\
1351})
1352
1353#define mflo3()								\
1354({									\
1355	long mflo3;							\
1356	__asm__(							\
1357	"	.set push					\n"	\
1358	"	.set dsp					\n"	\
1359	"	mflo %0, $ac3					\n"	\
1360	"	.set pop					\n" 	\
1361	: "=r" (mflo3)); 						\
1362	mflo3;								\
1363})
1364
1365#define mfhi0()								\
1366({									\
1367	long mfhi0;							\
1368	__asm__(							\
1369	"	.set push					\n"	\
1370	"	.set dsp					\n"	\
1371	"	mfhi %0, $ac0					\n"	\
1372	"	.set pop					\n" 	\
1373	: "=r" (mfhi0)); 						\
1374	mfhi0;								\
1375})
1376
1377#define mfhi1()								\
1378({									\
1379	long mfhi1;							\
1380	__asm__(							\
1381	"	.set push					\n"	\
1382	"	.set dsp					\n"	\
1383	"	mfhi %0, $ac1					\n"	\
1384	"	.set pop					\n" 	\
1385	: "=r" (mfhi1)); 						\
1386	mfhi1;								\
1387})
1388
1389#define mfhi2()								\
1390({									\
1391	long mfhi2;							\
1392	__asm__(							\
1393	"	.set push					\n"	\
1394	"	.set dsp					\n"	\
1395	"	mfhi %0, $ac2					\n"	\
1396	"	.set pop					\n" 	\
1397	: "=r" (mfhi2)); 						\
1398	mfhi2;								\
1399})
1400
1401#define mfhi3()								\
1402({									\
1403	long mfhi3;							\
1404	__asm__(							\
1405	"	.set push					\n"	\
1406	"	.set dsp					\n"	\
1407	"	mfhi %0, $ac3					\n"	\
1408	"	.set pop					\n" 	\
1409	: "=r" (mfhi3)); 						\
1410	mfhi3;								\
1411})
1412
1413
1414#define mtlo0(x)							\
1415({									\
1416	__asm__(							\
1417	"	.set push					\n"	\
1418	"	.set dsp					\n"	\
1419	"	mtlo %0, $ac0					\n"	\
1420	"	.set pop					\n"	\
1421	:								\
1422	: "r" (x));							\
1423})
1424
1425#define mtlo1(x)							\
1426({									\
1427	__asm__(							\
1428	"	.set push					\n"	\
1429	"	.set dsp					\n"	\
1430	"	mtlo %0, $ac1					\n"	\
1431	"	.set pop					\n"	\
1432	:								\
1433	: "r" (x));							\
1434})
1435
1436#define mtlo2(x)							\
1437({									\
1438	__asm__(							\
1439	"	.set push					\n"	\
1440	"	.set dsp					\n"	\
1441	"	mtlo %0, $ac2					\n"	\
1442	"	.set pop					\n"	\
1443	:								\
1444	: "r" (x));							\
1445})
1446
1447#define mtlo3(x)							\
1448({									\
1449	__asm__(							\
1450	"	.set push					\n"	\
1451	"	.set dsp					\n"	\
1452	"	mtlo %0, $ac3					\n"	\
1453	"	.set pop					\n"	\
1454	:								\
1455	: "r" (x));							\
1456})
1457
1458#define mthi0(x)							\
1459({									\
1460	__asm__(							\
1461	"	.set push					\n"	\
1462	"	.set dsp					\n"	\
1463	"	mthi %0, $ac0					\n"	\
1464	"	.set pop					\n"	\
1465	:								\
1466	: "r" (x));							\
1467})
1468
1469#define mthi1(x)							\
1470({									\
1471	__asm__(							\
1472	"	.set push					\n"	\
1473	"	.set dsp					\n"	\
1474	"	mthi %0, $ac1					\n"	\
1475	"	.set pop					\n"	\
1476	:								\
1477	: "r" (x));							\
1478})
1479
1480#define mthi2(x)							\
1481({									\
1482	__asm__(							\
1483	"	.set push					\n"	\
1484	"	.set dsp					\n"	\
1485	"	mthi %0, $ac2					\n"	\
1486	"	.set pop					\n"	\
1487	:								\
1488	: "r" (x));							\
1489})
1490
1491#define mthi3(x)							\
1492({									\
1493	__asm__(							\
1494	"	.set push					\n"	\
1495	"	.set dsp					\n"	\
1496	"	mthi %0, $ac3					\n"	\
1497	"	.set pop					\n"	\
1498	:								\
1499	: "r" (x));							\
1500})
1501
1502#else
1503
1504#ifdef CONFIG_CPU_MICROMIPS
1505#define rddsp(mask)							\
1506({									\
1507	unsigned int __res;						\
1508									\
1509	__asm__ __volatile__(						\
1510	"	.set	push					\n"	\
1511	"	.set	noat					\n"	\
1512	"	# rddsp $1, %x1					\n"	\
1513	"	.hword	((0x0020067c | (%x1 << 14)) >> 16)	\n"	\
1514	"	.hword	((0x0020067c | (%x1 << 14)) & 0xffff)	\n"	\
1515	"	move	%0, $1					\n"	\
1516	"	.set	pop					\n"	\
1517	: "=r" (__res)							\
1518	: "i" (mask));							\
1519	__res;								\
1520})
1521
1522#define wrdsp(val, mask)						\
1523do {									\
1524	__asm__ __volatile__(						\
1525	"	.set	push					\n"	\
1526	"	.set	noat					\n"	\
1527	"	move	$1, %0					\n"	\
1528	"	# wrdsp $1, %x1					\n"	\
1529	"	.hword	((0x0020167c | (%x1 << 14)) >> 16)	\n"	\
1530	"	.hword	((0x0020167c | (%x1 << 14)) & 0xffff)	\n"	\
1531	"	.set	pop					\n"	\
1532	:								\
1533	: "r" (val), "i" (mask));					\
1534} while (0)
1535
1536#define _umips_dsp_mfxxx(ins)						\
1537({									\
1538	unsigned long __treg;						\
1539									\
1540	__asm__ __volatile__(						\
1541	"	.set	push					\n"	\
1542	"	.set	noat					\n"	\
1543	"	.hword	0x0001					\n"	\
1544	"	.hword	%x1					\n"	\
1545	"	move	%0, $1					\n"	\
1546	"	.set	pop					\n"	\
1547	: "=r" (__treg)							\
1548	: "i" (ins));							\
1549	__treg;								\
1550})
1551
1552#define _umips_dsp_mtxxx(val, ins)					\
1553do {									\
1554	__asm__ __volatile__(						\
1555	"	.set	push					\n"	\
1556	"	.set	noat					\n"	\
1557	"	move	$1, %0					\n"	\
1558	"	.hword	0x0001					\n"	\
1559	"	.hword	%x1					\n"	\
1560	"	.set	pop					\n"	\
1561	:								\
1562	: "r" (val), "i" (ins));					\
1563} while (0)
1564
1565#define _umips_dsp_mflo(reg) _umips_dsp_mfxxx((reg << 14) | 0x107c)
1566#define _umips_dsp_mfhi(reg) _umips_dsp_mfxxx((reg << 14) | 0x007c)
1567
1568#define _umips_dsp_mtlo(val, reg) _umips_dsp_mtxxx(val, ((reg << 14) | 0x307c))
1569#define _umips_dsp_mthi(val, reg) _umips_dsp_mtxxx(val, ((reg << 14) | 0x207c))
1570
1571#define mflo0() _umips_dsp_mflo(0)
1572#define mflo1() _umips_dsp_mflo(1)
1573#define mflo2() _umips_dsp_mflo(2)
1574#define mflo3() _umips_dsp_mflo(3)
1575
1576#define mfhi0() _umips_dsp_mfhi(0)
1577#define mfhi1() _umips_dsp_mfhi(1)
1578#define mfhi2() _umips_dsp_mfhi(2)
1579#define mfhi3() _umips_dsp_mfhi(3)
1580
1581#define mtlo0(x) _umips_dsp_mtlo(x, 0)
1582#define mtlo1(x) _umips_dsp_mtlo(x, 1)
1583#define mtlo2(x) _umips_dsp_mtlo(x, 2)
1584#define mtlo3(x) _umips_dsp_mtlo(x, 3)
1585
1586#define mthi0(x) _umips_dsp_mthi(x, 0)
1587#define mthi1(x) _umips_dsp_mthi(x, 1)
1588#define mthi2(x) _umips_dsp_mthi(x, 2)
1589#define mthi3(x) _umips_dsp_mthi(x, 3)
1590
1591#else  /* !CONFIG_CPU_MICROMIPS */
1592#define rddsp(mask)							\
1593({									\
1594	unsigned int __res;						\
1595									\
1596	__asm__ __volatile__(						\
1597	"	.set	push				\n"		\
1598	"	.set	noat				\n"		\
1599	"	# rddsp $1, %x1				\n"		\
1600	"	.word	0x7c000cb8 | (%x1 << 16)	\n"		\
1601	"	move	%0, $1				\n"		\
1602	"	.set	pop				\n"		\
1603	: "=r" (__res)							\
1604	: "i" (mask));							\
1605	__res;								\
1606})
1607
1608#define wrdsp(val, mask)						\
1609do {									\
1610	__asm__ __volatile__(						\
1611	"	.set	push					\n"	\
1612	"	.set	noat					\n"	\
1613	"	move	$1, %0					\n"	\
1614	"	# wrdsp $1, %x1					\n"	\
1615	"	.word	0x7c2004f8 | (%x1 << 11)		\n"	\
1616	"	.set	pop					\n"	\
1617        :								\
1618	: "r" (val), "i" (mask));					\
1619} while (0)
1620
1621#define _dsp_mfxxx(ins)							\
1622({									\
1623	unsigned long __treg;						\
1624									\
1625	__asm__ __volatile__(						\
1626	"	.set	push					\n"	\
1627	"	.set	noat					\n"	\
1628	"	.word	(0x00000810 | %1)			\n"	\
1629	"	move	%0, $1					\n"	\
1630	"	.set	pop					\n"	\
1631	: "=r" (__treg)							\
1632	: "i" (ins));							\
1633	__treg;								\
1634})
1635
1636#define _dsp_mtxxx(val, ins)						\
1637do {									\
1638	__asm__ __volatile__(						\
1639	"	.set	push					\n"	\
1640	"	.set	noat					\n"	\
1641	"	move	$1, %0					\n"	\
1642	"	.word	(0x00200011 | %1)			\n"	\
1643	"	.set	pop					\n"	\
1644	:								\
1645	: "r" (val), "i" (ins));					\
1646} while (0)
1647
1648#define _dsp_mflo(reg) _dsp_mfxxx((reg << 21) | 0x0002)
1649#define _dsp_mfhi(reg) _dsp_mfxxx((reg << 21) | 0x0000)
1650
1651#define _dsp_mtlo(val, reg) _dsp_mtxxx(val, ((reg << 11) | 0x0002))
1652#define _dsp_mthi(val, reg) _dsp_mtxxx(val, ((reg << 11) | 0x0000))
1653
1654#define mflo0() _dsp_mflo(0)
1655#define mflo1() _dsp_mflo(1)
1656#define mflo2() _dsp_mflo(2)
1657#define mflo3() _dsp_mflo(3)
1658
1659#define mfhi0() _dsp_mfhi(0)
1660#define mfhi1() _dsp_mfhi(1)
1661#define mfhi2() _dsp_mfhi(2)
1662#define mfhi3() _dsp_mfhi(3)
1663
1664#define mtlo0(x) _dsp_mtlo(x, 0)
1665#define mtlo1(x) _dsp_mtlo(x, 1)
1666#define mtlo2(x) _dsp_mtlo(x, 2)
1667#define mtlo3(x) _dsp_mtlo(x, 3)
1668
1669#define mthi0(x) _dsp_mthi(x, 0)
1670#define mthi1(x) _dsp_mthi(x, 1)
1671#define mthi2(x) _dsp_mthi(x, 2)
1672#define mthi3(x) _dsp_mthi(x, 3)
1673
1674#endif /* CONFIG_CPU_MICROMIPS */
1675#endif
1676
1677/*
1678 * TLB operations.
1679 *
1680 * It is responsibility of the caller to take care of any TLB hazards.
1681 */
1682static inline void tlb_probe(void)
1683{
1684	__asm__ __volatile__(
1685		".set noreorder\n\t"
1686		"tlbp\n\t"
1687		".set reorder");
1688}
1689
1690static inline void tlb_read(void)
1691{
1692#if MIPS34K_MISSED_ITLB_WAR
1693	int res = 0;
1694
1695	__asm__ __volatile__(
1696	"	.set	push					\n"
1697	"	.set	noreorder				\n"
1698	"	.set	noat					\n"
1699	"	.set	mips32r2				\n"
1700	"	.word	0x41610001		# dvpe $1	\n"
1701	"	move	%0, $1					\n"
1702	"	ehb						\n"
1703	"	.set	pop					\n"
1704	: "=r" (res));
1705
1706	instruction_hazard();
1707#endif
1708
1709	__asm__ __volatile__(
1710		".set noreorder\n\t"
1711		"tlbr\n\t"
1712		".set reorder");
1713
1714#if MIPS34K_MISSED_ITLB_WAR
1715	if ((res & _ULCAST_(1)))
1716		__asm__ __volatile__(
1717		"	.set	push				\n"
1718		"	.set	noreorder			\n"
1719		"	.set	noat				\n"
1720		"	.set	mips32r2			\n"
1721		"	.word	0x41600021	# evpe		\n"
1722		"	ehb					\n"
1723		"	.set	pop				\n");
1724#endif
1725}
1726
1727static inline void tlb_write_indexed(void)
1728{
1729	__asm__ __volatile__(
1730		".set noreorder\n\t"
1731		"tlbwi\n\t"
1732		".set reorder");
1733}
1734
1735static inline void tlb_write_random(void)
1736{
1737	__asm__ __volatile__(
1738		".set noreorder\n\t"
1739		"tlbwr\n\t"
1740		".set reorder");
1741}
1742
1743/*
1744 * Manipulate bits in a c0 register.
1745 */
1746#ifndef CONFIG_MIPS_MT_SMTC
1747/*
1748 * SMTC Linux requires shutting-down microthread scheduling
1749 * during CP0 register read-modify-write sequences.
1750 */
1751#define __BUILD_SET_C0(name)					\
1752static inline unsigned int					\
1753set_c0_##name(unsigned int set)					\
1754{								\
1755	unsigned int res, new;					\
1756								\
1757	res = read_c0_##name();					\
1758	new = res | set;					\
1759	write_c0_##name(new);					\
1760								\
1761	return res;						\
1762}								\
1763								\
1764static inline unsigned int					\
1765clear_c0_##name(unsigned int clear)				\
1766{								\
1767	unsigned int res, new;					\
1768								\
1769	res = read_c0_##name();					\
1770	new = res & ~clear;					\
1771	write_c0_##name(new);					\
1772								\
1773	return res;						\
1774}								\
1775								\
1776static inline unsigned int					\
1777change_c0_##name(unsigned int change, unsigned int val)		\
1778{								\
1779	unsigned int res, new;					\
1780								\
1781	res = read_c0_##name();					\
1782	new = res & ~change;					\
1783	new |= (val & change);					\
1784	write_c0_##name(new);					\
1785								\
1786	return res;						\
1787}
1788
1789#else /* SMTC versions that manage MT scheduling */
1790
1791#include <linux/irqflags.h>
1792
1793/*
1794 * This is a duplicate of dmt() in mipsmtregs.h to avoid problems with
1795 * header file recursion.
1796 */
1797static inline unsigned int __dmt(void)
1798{
1799	int res;
1800
1801	__asm__ __volatile__(
1802	"	.set	push						\n"
1803	"	.set	mips32r2					\n"
1804	"	.set	noat						\n"
1805	"	.word	0x41610BC1			# dmt $1	\n"
1806	"	ehb							\n"
1807	"	move	%0, $1						\n"
1808	"	.set	pop						\n"
1809	: "=r" (res));
1810
1811	instruction_hazard();
1812
1813	return res;
1814}
1815
1816#define __VPECONTROL_TE_SHIFT	15
1817#define __VPECONTROL_TE		(1UL << __VPECONTROL_TE_SHIFT)
1818
1819#define __EMT_ENABLE		__VPECONTROL_TE
1820
1821static inline void __emt(unsigned int previous)
1822{
1823	if ((previous & __EMT_ENABLE))
1824		__asm__ __volatile__(
1825		"	.set	mips32r2				\n"
1826		"	.word	0x41600be1		# emt		\n"
1827		"	ehb						\n"
1828		"	.set	mips0					\n");
1829}
1830
1831static inline void __ehb(void)
1832{
1833	__asm__ __volatile__(
1834	"	.set	mips32r2					\n"
1835	"	ehb							\n"		"	.set	mips0						\n");
1836}
1837
1838/*
1839 * Note that local_irq_save/restore affect TC-specific IXMT state,
1840 * not Status.IE as in non-SMTC kernel.
1841 */
1842
1843#define __BUILD_SET_C0(name)					\
1844static inline unsigned int					\
1845set_c0_##name(unsigned int set)					\
1846{								\
1847	unsigned int res;					\
1848	unsigned int new;					\
1849	unsigned int omt;					\
1850	unsigned long flags;					\
1851								\
1852	local_irq_save(flags);					\
1853	omt = __dmt();						\
1854	res = read_c0_##name();					\
1855	new = res | set;					\
1856	write_c0_##name(new);					\
1857	__emt(omt);						\
1858	local_irq_restore(flags);				\
1859								\
1860	return res;						\
1861}								\
1862								\
1863static inline unsigned int					\
1864clear_c0_##name(unsigned int clear)				\
1865{								\
1866	unsigned int res;					\
1867	unsigned int new;					\
1868	unsigned int omt;					\
1869	unsigned long flags;					\
1870								\
1871	local_irq_save(flags);					\
1872	omt = __dmt();						\
1873	res = read_c0_##name();					\
1874	new = res & ~clear;					\
1875	write_c0_##name(new);					\
1876	__emt(omt);						\
1877	local_irq_restore(flags);				\
1878								\
1879	return res;						\
1880}								\
1881								\
1882static inline unsigned int					\
1883change_c0_##name(unsigned int change, unsigned int newbits)	\
1884{								\
1885	unsigned int res;					\
1886	unsigned int new;					\
1887	unsigned int omt;					\
1888	unsigned long flags;					\
1889								\
1890	local_irq_save(flags);					\
1891								\
1892	omt = __dmt();						\
1893	res = read_c0_##name();					\
1894	new = res & ~change;					\
1895	new |= (newbits & change);				\
1896	write_c0_##name(new);					\
1897	__emt(omt);						\
1898	local_irq_restore(flags);				\
1899								\
1900	return res;						\
1901}
1902#endif
1903
1904__BUILD_SET_C0(status)
1905__BUILD_SET_C0(cause)
1906__BUILD_SET_C0(config)
1907__BUILD_SET_C0(config5)
1908__BUILD_SET_C0(intcontrol)
1909__BUILD_SET_C0(intctl)
1910__BUILD_SET_C0(srsmap)
 
1911__BUILD_SET_C0(brcm_config_0)
1912__BUILD_SET_C0(brcm_bus_pll)
1913__BUILD_SET_C0(brcm_reset)
1914__BUILD_SET_C0(brcm_cmt_intr)
1915__BUILD_SET_C0(brcm_cmt_ctrl)
1916__BUILD_SET_C0(brcm_config)
1917__BUILD_SET_C0(brcm_mode)
 
 
 
 
 
 
 
 
 
1918
1919#endif /* !__ASSEMBLY__ */
1920
1921#endif /* _ASM_MIPSREGS_H */