kernel/arch/mips/include/asm/cpu.h

   1 /*
   2  * cpu.h: Values of the PRId register used to match up
   3  *        various MIPS cpu types.
   4  *
   5  * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
   6  * Copyright (C) 2004, 2013  Maciej W. Rozycki
   7  */
   8 #ifndef _ASM_CPU_H
   9 #define _ASM_CPU_H
  10
  11 /*
  12    As of the MIPS32 and MIPS64 specs from MTI, the PRId register (CP0
  13    register 15, select 0) is defined in this (backwards compatible) way:
  14
  15   +----------------+----------------+----------------+----------------+
  16   | Company Options| Company ID     | Processor ID   | Revision       |
  17   +----------------+----------------+----------------+----------------+
  18    31            24 23            16 15             8 7
  19
  20    I don't have docs for all the previous processors, but my impression is
  21    that bits 16-23 have been 0 for all MIPS processors before the MIPS32/64
  22    spec.
  23 */
  24
  25 #define PRID_OPT_MASK           0xff000000
  26
  27 /*
  28  * Assigned Company values for bits 23:16 of the PRId register.
  29  */
  30
  31 #define PRID_COMP_MASK          0xff0000
  32
  33 #define PRID_COMP_LEGACY        0x000000
  34 #define PRID_COMP_MIPS          0x010000
  35 #define PRID_COMP_BROADCOM      0x020000
  36 #define PRID_COMP_ALCHEMY       0x030000
  37 #define PRID_COMP_SIBYTE        0x040000
  38 #define PRID_COMP_SANDCRAFT     0x050000
  39 #define PRID_COMP_NXP           0x060000
  40 #define PRID_COMP_TOSHIBA       0x070000
  41 #define PRID_COMP_LSI           0x080000
  42 #define PRID_COMP_LEXRA         0x0b0000
  43 #define PRID_COMP_NETLOGIC      0x0c0000
  44 #define PRID_COMP_CAVIUM        0x0d0000
  45 #define PRID_COMP_INGENIC       0xd00000
  46
  47 /*
  48  * Assigned Processor ID (implementation) values for bits 15:8 of the PRId
  49  * register.  In order to detect a certain CPU type exactly eventually
  50  * additional registers may need to be examined.
  51  */
  52
  53 #define PRID_IMP_MASK           0xff00
  54
  55 /*
  56  * These are valid when 23:16 == PRID_COMP_LEGACY
  57  */
  58
  59 #define PRID_IMP_R2000          0x0100
  60 #define PRID_IMP_AU1_REV1       0x0100
  61 #define PRID_IMP_AU1_REV2       0x0200
  62 #define PRID_IMP_R3000          0x0200          /* Same as R2000A  */
  63 #define PRID_IMP_R6000          0x0300          /* Same as R3000A  */
  64 #define PRID_IMP_R4000          0x0400
  65 #define PRID_IMP_R6000A         0x0600
  66 #define PRID_IMP_R10000         0x0900
  67 #define PRID_IMP_R4300          0x0b00
  68 #define PRID_IMP_VR41XX         0x0c00
  69 #define PRID_IMP_R12000         0x0e00
  70 #define PRID_IMP_R14000         0x0f00          /* R14K && R16K */
  71 #define PRID_IMP_R8000          0x1000
  72 #define PRID_IMP_PR4450         0x1200
  73 #define PRID_IMP_R4600          0x2000
  74 #define PRID_IMP_R4700          0x2100
  75 #define PRID_IMP_TX39           0x2200
  76 #define PRID_IMP_R4640          0x2200
  77 #define PRID_IMP_R4650          0x2200          /* Same as R4640 */
  78 #define PRID_IMP_R5000          0x2300
  79 #define PRID_IMP_TX49           0x2d00
  80 #define PRID_IMP_SONIC          0x2400
  81 #define PRID_IMP_MAGIC          0x2500
  82 #define PRID_IMP_RM7000         0x2700
  83 #define PRID_IMP_NEVADA         0x2800          /* RM5260 ??? */
  84 #define PRID_IMP_RM9000         0x3400
  85 #define PRID_IMP_LOONGSON_32    0x4200  /* Loongson-1 */
  86 #define PRID_IMP_R5432          0x5400
  87 #define PRID_IMP_R5500          0x5500
  88 #define PRID_IMP_LOONGSON_64    0x6300  /* Loongson-2/3 */
  89
  90 #define PRID_IMP_UNKNOWN        0xff00
  91
  92 /*
  93  * These are the PRID's for when 23:16 == PRID_COMP_MIPS
  94  */
  95
  96 #define PRID_IMP_QEMU_GENERIC   0x0000
  97 #define PRID_IMP_4KC            0x8000
  98 #define PRID_IMP_5KC            0x8100
  99 #define PRID_IMP_20KC           0x8200
 100 #define PRID_IMP_4KEC           0x8400
 101 #define PRID_IMP_4KSC           0x8600
 102 #define PRID_IMP_25KF           0x8800
 103 #define PRID_IMP_5KE            0x8900
 104 #define PRID_IMP_4KECR2         0x9000
 105 #define PRID_IMP_4KEMPR2        0x9100
 106 #define PRID_IMP_4KSD           0x9200
 107 #define PRID_IMP_24K            0x9300
 108 #define PRID_IMP_34K            0x9500
 109 #define PRID_IMP_24KE           0x9600
 110 #define PRID_IMP_74K            0x9700
 111 #define PRID_IMP_1004K          0x9900
 112 #define PRID_IMP_1074K          0x9a00
 113 #define PRID_IMP_M14KC          0x9c00
 114 #define PRID_IMP_M14KEC         0x9e00
 115 #define PRID_IMP_INTERAPTIV_UP  0xa000
 116 #define PRID_IMP_INTERAPTIV_MP  0xa100
 117 #define PRID_IMP_PROAPTIV_UP    0xa200
 118 #define PRID_IMP_PROAPTIV_MP    0xa300
 119 #define PRID_IMP_M5150          0xa700
 120 #define PRID_IMP_P5600          0xa800
 121
 122 /*
 123  * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
 124  */
 125
 126 #define PRID_IMP_SB1            0x0100
 127 #define PRID_IMP_SB1A           0x1100
 128
 129 /*
 130  * These are the PRID's for when 23:16 == PRID_COMP_SANDCRAFT
 131  */
 132
 133 #define PRID_IMP_SR71000        0x0400
 134
 135 /*
 136  * These are the PRID's for when 23:16 == PRID_COMP_BROADCOM
 137  */
 138
 139 #define PRID_IMP_BMIPS32_REV4   0x4000
 140 #define PRID_IMP_BMIPS32_REV8   0x8000
 141 #define PRID_IMP_BMIPS3300      0x9000
 142 #define PRID_IMP_BMIPS3300_ALT  0x9100
 143 #define PRID_IMP_BMIPS3300_BUG  0x0000
 144 #define PRID_IMP_BMIPS43XX      0xa000
 145 #define PRID_IMP_BMIPS5000      0x5a00
 146 #define PRID_IMP_BMIPS5200      0x5b00
 147
 148 #define PRID_REV_BMIPS4380_LO   0x0040
 149 #define PRID_REV_BMIPS4380_HI   0x006f
 150
 151 /*
 152  * These are the PRID's for when 23:16 == PRID_COMP_CAVIUM
 153  */
 154
 155 #define PRID_IMP_CAVIUM_CN38XX 0x0000
 156 #define PRID_IMP_CAVIUM_CN31XX 0x0100
 157 #define PRID_IMP_CAVIUM_CN30XX 0x0200
 158 #define PRID_IMP_CAVIUM_CN58XX 0x0300
 159 #define PRID_IMP_CAVIUM_CN56XX 0x0400
 160 #define PRID_IMP_CAVIUM_CN50XX 0x0600
 161 #define PRID_IMP_CAVIUM_CN52XX 0x0700
 162 #define PRID_IMP_CAVIUM_CN63XX 0x9000
 163 #define PRID_IMP_CAVIUM_CN68XX 0x9100
 164 #define PRID_IMP_CAVIUM_CN66XX 0x9200
 165 #define PRID_IMP_CAVIUM_CN61XX 0x9300
 166 #define PRID_IMP_CAVIUM_CNF71XX 0x9400
 167 #define PRID_IMP_CAVIUM_CN78XX 0x9500
 168 #define PRID_IMP_CAVIUM_CN70XX 0x9600
 169
 170 /*
 171  * These are the PRID's for when 23:16 == PRID_COMP_INGENIC
 172  */
 173
 174 #define PRID_IMP_JZRISC        0x0200
 175
 176 /*
 177  * These are the PRID's for when 23:16 == PRID_COMP_NETLOGIC
 178  */
 179 #define PRID_IMP_NETLOGIC_XLR732        0x0000
 180 #define PRID_IMP_NETLOGIC_XLR716        0x0200
 181 #define PRID_IMP_NETLOGIC_XLR532        0x0900
 182 #define PRID_IMP_NETLOGIC_XLR308        0x0600
 183 #define PRID_IMP_NETLOGIC_XLR532C       0x0800
 184 #define PRID_IMP_NETLOGIC_XLR516C       0x0a00
 185 #define PRID_IMP_NETLOGIC_XLR508C       0x0b00
 186 #define PRID_IMP_NETLOGIC_XLR308C       0x0f00
 187 #define PRID_IMP_NETLOGIC_XLS608        0x8000
 188 #define PRID_IMP_NETLOGIC_XLS408        0x8800
 189 #define PRID_IMP_NETLOGIC_XLS404        0x8c00
 190 #define PRID_IMP_NETLOGIC_XLS208        0x8e00
 191 #define PRID_IMP_NETLOGIC_XLS204        0x8f00
 192 #define PRID_IMP_NETLOGIC_XLS108        0xce00
 193 #define PRID_IMP_NETLOGIC_XLS104        0xcf00
 194 #define PRID_IMP_NETLOGIC_XLS616B       0x4000
 195 #define PRID_IMP_NETLOGIC_XLS608B       0x4a00
 196 #define PRID_IMP_NETLOGIC_XLS416B       0x4400
 197 #define PRID_IMP_NETLOGIC_XLS412B       0x4c00
 198 #define PRID_IMP_NETLOGIC_XLS408B       0x4e00
 199 #define PRID_IMP_NETLOGIC_XLS404B       0x4f00
 200 #define PRID_IMP_NETLOGIC_AU13XX        0x8000
 201
 202 #define PRID_IMP_NETLOGIC_XLP8XX        0x1000
 203 #define PRID_IMP_NETLOGIC_XLP3XX        0x1100
 204 #define PRID_IMP_NETLOGIC_XLP2XX        0x1200
 205 #define PRID_IMP_NETLOGIC_XLP9XX        0x1500
 206 #define PRID_IMP_NETLOGIC_XLP5XX        0x1300
 207
 208 /*
 209  * Particular Revision values for bits 7:0 of the PRId register.
 210  */
 211
 212 #define PRID_REV_MASK           0x00ff
 213
 214 /*
 215  * Definitions for 7:0 on legacy processors
 216  */
 217
 218 #define PRID_REV_TX4927         0x0022
 219 #define PRID_REV_TX4937         0x0030
 220 #define PRID_REV_R4400          0x0040
 221 #define PRID_REV_R3000A         0x0030
 222 #define PRID_REV_R3000          0x0020
 223 #define PRID_REV_R2000A         0x0010
 224 #define PRID_REV_TX3912         0x0010
 225 #define PRID_REV_TX3922         0x0030
 226 #define PRID_REV_TX3927         0x0040
 227 #define PRID_REV_VR4111         0x0050
 228 #define PRID_REV_VR4181         0x0050  /* Same as VR4111 */
 229 #define PRID_REV_VR4121         0x0060
 230 #define PRID_REV_VR4122         0x0070
 231 #define PRID_REV_VR4181A        0x0070  /* Same as VR4122 */
 232 #define PRID_REV_VR4130         0x0080
 233 #define PRID_REV_34K_V1_0_2     0x0022
 234 #define PRID_REV_LOONGSON1B     0x0020
 235 #define PRID_REV_LOONGSON2E     0x0002
 236 #define PRID_REV_LOONGSON2F     0x0003
 237 #define PRID_REV_LOONGSON3A     0x0005
 238 #define PRID_REV_LOONGSON3B_R1  0x0006
 239 #define PRID_REV_LOONGSON3B_R2  0x0007
 240
 241 /*
 242  * Older processors used to encode processor version and revision in two
 243  * 4-bit bitfields, the 4K seems to simply count up and even newer MTI cores
 244  * have switched to use the 8-bits as 3:3:2 bitfield with the last field as
 245  * the patch number.  *ARGH*
 246  */
 247 #define PRID_REV_ENCODE_44(ver, rev)                                    \
 248         ((ver) << 4 | (rev))
 249 #define PRID_REV_ENCODE_332(ver, rev, patch)                            \
 250         ((ver) << 5 | (rev) << 2 | (patch))
 251
 252 /*
 253  * FPU implementation/revision register (CP1 control register 0).
 254  *
 255  * +---------------------------------+----------------+----------------+
 256  * | 0                               | Implementation | Revision       |
 257  * +---------------------------------+----------------+----------------+
 258  *  31                             16 15             8 7              0
 259  */
 260
 261 #define FPIR_IMP_MASK           0xff00
 262
 263 #define FPIR_IMP_NONE           0x0000
 264
 265 #if !defined(__ASSEMBLY__)
 266
 267 enum cpu_type_enum {
 268         CPU_UNKNOWN,
 269
 270         /*
 271          * R2000 class processors
 272          */
 273         CPU_R2000, CPU_R3000, CPU_R3000A, CPU_R3041, CPU_R3051, CPU_R3052,
 274         CPU_R3081, CPU_R3081E,
 275
 276         /*
 277          * R6000 class processors
 278          */
 279         CPU_R6000, CPU_R6000A,
 280
 281         /*
 282          * R4000 class processors
 283          */
 284         CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200, CPU_R4300, CPU_R4310,
 285         CPU_R4400PC, CPU_R4400SC, CPU_R4400MC, CPU_R4600, CPU_R4640, CPU_R4650,
 286         CPU_R4700, CPU_R5000, CPU_R5500, CPU_NEVADA, CPU_R5432, CPU_R10000,
 287         CPU_R12000, CPU_R14000, CPU_R16000, CPU_VR41XX, CPU_VR4111, CPU_VR4121,
 288         CPU_VR4122, CPU_VR4131, CPU_VR4133, CPU_VR4181, CPU_VR4181A, CPU_RM7000,
 289         CPU_SR71000, CPU_TX49XX,
 290
 291         /*
 292          * R8000 class processors
 293          */
 294         CPU_R8000,
 295
 296         /*
 297          * TX3900 class processors
 298          */
 299         CPU_TX3912, CPU_TX3922, CPU_TX3927,
 300
 301         /*
 302          * MIPS32 class processors
 303          */
 304         CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K,
 305         CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350,
 306         CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC, CPU_LOONGSON1, CPU_M14KC,
 307         CPU_M14KEC, CPU_INTERAPTIV, CPU_P5600, CPU_PROAPTIV, CPU_1074K, CPU_M5150,
 308
 309         /*
 310          * MIPS64 class processors
 311          */
 312         CPU_5KC, CPU_5KE, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2,
 313         CPU_LOONGSON3, CPU_CAVIUM_OCTEON, CPU_CAVIUM_OCTEON_PLUS,
 314         CPU_CAVIUM_OCTEON2, CPU_CAVIUM_OCTEON3, CPU_XLR, CPU_XLP,
 315
 316         CPU_QEMU_GENERIC,
 317
 318         CPU_LAST
 319 };
 320
 321 #endif /* !__ASSEMBLY */
 322
 323 /*
 324  * ISA Level encodings
 325  *
 326  */
 327 #define MIPS_CPU_ISA_II         0x00000001
 328 #define MIPS_CPU_ISA_III        0x00000002
 329 #define MIPS_CPU_ISA_IV         0x00000004
 330 #define MIPS_CPU_ISA_V          0x00000008
 331 #define MIPS_CPU_ISA_M32R1      0x00000010
 332 #define MIPS_CPU_ISA_M32R2      0x00000020
 333 #define MIPS_CPU_ISA_M64R1      0x00000040
 334 #define MIPS_CPU_ISA_M64R2      0x00000080
 335 #define MIPS_CPU_ISA_M32R6      0x00000100
 336 #define MIPS_CPU_ISA_M64R6      0x00000200
 337
 338 #define MIPS_CPU_ISA_32BIT (MIPS_CPU_ISA_II | MIPS_CPU_ISA_M32R1 | \
 339         MIPS_CPU_ISA_M32R2 | MIPS_CPU_ISA_M32R6)
 340 #define MIPS_CPU_ISA_64BIT (MIPS_CPU_ISA_III | MIPS_CPU_ISA_IV | \
 341         MIPS_CPU_ISA_V | MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2 | \
 342         MIPS_CPU_ISA_M64R6)
 343
 344 /*
 345  * CPU Option encodings
 346  */
 347 #define MIPS_CPU_TLB            0x00000001ull /* CPU has TLB */
 348 #define MIPS_CPU_4KEX           0x00000002ull /* "R4K" exception model */
 349 #define MIPS_CPU_3K_CACHE       0x00000004ull /* R3000-style caches */
 350 #define MIPS_CPU_4K_CACHE       0x00000008ull /* R4000-style caches */
 351 #define MIPS_CPU_TX39_CACHE     0x00000010ull /* TX3900-style caches */
 352 #define MIPS_CPU_FPU            0x00000020ull /* CPU has FPU */
 353 #define MIPS_CPU_32FPR          0x00000040ull /* 32 dbl. prec. FP registers */
 354 #define MIPS_CPU_COUNTER        0x00000080ull /* Cycle count/compare */
 355 #define MIPS_CPU_WATCH          0x00000100ull /* watchpoint registers */
 356 #define MIPS_CPU_DIVEC          0x00000200ull /* dedicated interrupt vector */
 357 #define MIPS_CPU_VCE            0x00000400ull /* virt. coherence conflict possible */
 358 #define MIPS_CPU_CACHE_CDEX_P   0x00000800ull /* Create_Dirty_Exclusive CACHE op */
 359 #define MIPS_CPU_CACHE_CDEX_S   0x00001000ull /* ... same for seconary cache ... */
 360 #define MIPS_CPU_MCHECK         0x00002000ull /* Machine check exception */
 361 #define MIPS_CPU_EJTAG          0x00004000ull /* EJTAG exception */
 362 #define MIPS_CPU_NOFPUEX        0x00008000ull /* no FPU exception */
 363 #define MIPS_CPU_LLSC           0x00010000ull /* CPU has ll/sc instructions */
 364 #define MIPS_CPU_INCLUSIVE_CACHES       0x00020000ull /* P-cache subset enforced */
 365 #define MIPS_CPU_PREFETCH       0x00040000ull /* CPU has usable prefetch */
 366 #define MIPS_CPU_VINT           0x00080000ull /* CPU supports MIPSR2 vectored interrupts */
 367 #define MIPS_CPU_VEIC           0x00100000ull /* CPU supports MIPSR2 external interrupt controller mode */
 368 #define MIPS_CPU_ULRI           0x00200000ull /* CPU has ULRI feature */
 369 #define MIPS_CPU_PCI            0x00400000ull /* CPU has Perf Ctr Int indicator */
 370 #define MIPS_CPU_RIXI           0x00800000ull /* CPU has TLB Read/eXec Inhibit */
 371 #define MIPS_CPU_MICROMIPS      0x01000000ull /* CPU has microMIPS capability */
 372 #define MIPS_CPU_TLBINV         0x02000000ull /* CPU supports TLBINV/F */
 373 #define MIPS_CPU_SEGMENTS       0x04000000ull /* CPU supports Segmentation Control registers */
 374 #define MIPS_CPU_EVA            0x80000000ull /* CPU supports Enhanced Virtual Addressing */
 375 #define MIPS_CPU_HTW            0x100000000ull /* CPU support Hardware Page Table Walker */
 376 #define MIPS_CPU_RIXIEX         0x200000000ull /* CPU has unique exception codes for {Read, Execute}-Inhibit exceptions */
 377 #define MIPS_CPU_MAAR           0x400000000ull /* MAAR(I) registers are present */
 378 #define MIPS_CPU_FRE            0x800000000ull /* FRE & UFE bits implemented */
 379 #define MIPS_CPU_RW_LLB         0x1000000000ull /* LLADDR/LLB writes are allowed */
 380 #define MIPS_CPU_XPA            0x2000000000ull /* CPU supports Extended Physical Addressing */
 381 #define MIPS_CPU_CDMM           0x4000000000ull /* CPU has Common Device Memory Map */
 382
 383 /*
 384  * CPU ASE encodings
 385  */
 386 #define MIPS_ASE_MIPS16         0x00000001 /* code compression */
 387 #define MIPS_ASE_MDMX           0x00000002 /* MIPS digital media extension */
 388 #define MIPS_ASE_MIPS3D         0x00000004 /* MIPS-3D */
 389 #define MIPS_ASE_SMARTMIPS      0x00000008 /* SmartMIPS */
 390 #define MIPS_ASE_DSP            0x00000010 /* Signal Processing ASE */
 391 #define MIPS_ASE_MIPSMT         0x00000020 /* CPU supports MIPS MT */
 392 #define MIPS_ASE_DSP2P          0x00000040 /* Signal Processing ASE Rev 2 */
 393 #define MIPS_ASE_VZ             0x00000080 /* Virtualization ASE */
 394 #define MIPS_ASE_MSA            0x00000100 /* MIPS SIMD Architecture */
 395
 396 #endif /* _ASM_CPU_H */