target-mips/translate_init.c

   1 /*
   2  *  MIPS emulation for qemu: CPU initialisation routines.
   3  *
   4  *  Copyright (c) 2004-2005 Jocelyn Mayer
   5  *  Copyright (c) 2007 Herve Poussineau
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 /* CPU / CPU family specific config register values. */
  22
  23 /* Have config1, uncached coherency */
  24 #define MIPS_CONFIG0                                              \
  25   ((1 << CP0C0_M) | (0x2 << CP0C0_K0))
  26
  27 /* Have config2, no coprocessor2 attached, no MDMX support attached,
  28    no performance counters, watch registers present,
  29    no code compression, EJTAG present, no FPU */
  30 #define MIPS_CONFIG1                                              \
  31 ((1 << CP0C1_M) |                                                 \
  32  (0 << CP0C1_C2) | (0 << CP0C1_MD) | (0 << CP0C1_PC) |            \
  33  (1 << CP0C1_WR) | (0 << CP0C1_CA) | (1 << CP0C1_EP) |            \
  34  (0 << CP0C1_FP))
  35
  36 /* Have config3, no tertiary/secondary caches implemented */
  37 #define MIPS_CONFIG2                                              \
  38 ((1 << CP0C2_M))
  39
  40 /* No config4, no DSP ASE, no large physaddr (PABITS),
  41    no external interrupt controller, no vectored interupts,
  42    no 1kb pages, no SmartMIPS ASE, no trace logic */
  43 #define MIPS_CONFIG3                                              \
  44 ((0 << CP0C3_M) | (0 << CP0C3_DSPP) | (0 << CP0C3_LPA) |          \
  45  (0 << CP0C3_VEIC) | (0 << CP0C3_VInt) | (0 << CP0C3_SP) |        \
  46  (0 << CP0C3_SM) | (0 << CP0C3_TL))
  47
  48 /* Define a implementation number of 1.
  49    Define a major version 1, minor version 0. */
  50 #define MIPS_FCR0 ((0 << FCR0_S) | (0x1 << FCR0_PRID) | (0x10 << FCR0_REV))
  51
  52 /* MMU types, the first four entries have the same layout as the
  53    CP0C0_MT field.  */
  54 enum mips_mmu_types {
  55     MMU_TYPE_NONE,
  56     MMU_TYPE_R4000,
  57     MMU_TYPE_RESERVED,
  58     MMU_TYPE_FMT,
  59     MMU_TYPE_R3000,
  60     MMU_TYPE_R6000,
  61     MMU_TYPE_R8000
  62 };
  63
  64 struct mips_def_t {
  65     const char *name;
  66     int32_t CP0_PRid;
  67     int32_t CP0_Config0;
  68     int32_t CP0_Config1;
  69     int32_t CP0_Config2;
  70     int32_t CP0_Config3;
  71     int32_t CP0_Config6;
  72     int32_t CP0_Config7;
  73     target_ulong CP0_LLAddr_rw_bitmask;
  74     int CP0_LLAddr_shift;
  75     int32_t SYNCI_Step;
  76     int32_t CCRes;
  77     int32_t CP0_Status_rw_bitmask;
  78     int32_t CP0_TCStatus_rw_bitmask;
  79     int32_t CP0_SRSCtl;
  80     int32_t CP1_fcr0;
  81     int32_t SEGBITS;
  82     int32_t PABITS;
  83     int32_t CP0_SRSConf0_rw_bitmask;
  84     int32_t CP0_SRSConf0;
  85     int32_t CP0_SRSConf1_rw_bitmask;
  86     int32_t CP0_SRSConf1;
  87     int32_t CP0_SRSConf2_rw_bitmask;
  88     int32_t CP0_SRSConf2;
  89     int32_t CP0_SRSConf3_rw_bitmask;
  90     int32_t CP0_SRSConf3;
  91     int32_t CP0_SRSConf4_rw_bitmask;
  92     int32_t CP0_SRSConf4;
  93     int insn_flags;
  94     enum mips_mmu_types mmu_type;
  95 };
  96
  97 /*****************************************************************************/
  98 /* MIPS CPU definitions */
  99 static const mips_def_t mips_defs[] =
 100 {
 101     {
 102         .name = "4Kc",
 103         .CP0_PRid = 0x00018000,
 104         .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_R4000 << CP0C0_MT),
 105         .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
 106                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 107                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 108                        (0 << CP0C1_CA),
 109         .CP0_Config2 = MIPS_CONFIG2,
 110         .CP0_Config3 = MIPS_CONFIG3,
 111         .CP0_LLAddr_rw_bitmask = 0,
 112         .CP0_LLAddr_shift = 4,
 113         .SYNCI_Step = 32,
 114         .CCRes = 2,
 115         .CP0_Status_rw_bitmask = 0x1278FF17,
 116         .SEGBITS = 32,
 117         .PABITS = 32,
 118         .insn_flags = CPU_MIPS32,
 119         .mmu_type = MMU_TYPE_R4000,
 120     },
 121     {
 122         .name = "4Km",
 123         .CP0_PRid = 0x00018300,
 124         /* Config1 implemented, fixed mapping MMU,
 125            no virtual icache, uncached coherency. */
 126         .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_FMT << CP0C0_MT),
 127         .CP0_Config1 = MIPS_CONFIG1 |
 128                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 129                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 130                        (1 << CP0C1_CA),
 131         .CP0_Config2 = MIPS_CONFIG2,
 132         .CP0_Config3 = MIPS_CONFIG3,
 133         .CP0_LLAddr_rw_bitmask = 0,
 134         .CP0_LLAddr_shift = 4,
 135         .SYNCI_Step = 32,
 136         .CCRes = 2,
 137         .CP0_Status_rw_bitmask = 0x1258FF17,
 138         .SEGBITS = 32,
 139         .PABITS = 32,
 140         .insn_flags = CPU_MIPS32 | ASE_MIPS16,
 141         .mmu_type = MMU_TYPE_FMT,
 142     },
 143     {
 144         .name = "4KEcR1",
 145         .CP0_PRid = 0x00018400,
 146         .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_R4000 << CP0C0_MT),
 147         .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
 148                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 149                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 150                        (0 << CP0C1_CA),
 151         .CP0_Config2 = MIPS_CONFIG2,
 152         .CP0_Config3 = MIPS_CONFIG3,
 153         .CP0_LLAddr_rw_bitmask = 0,
 154         .CP0_LLAddr_shift = 4,
 155         .SYNCI_Step = 32,
 156         .CCRes = 2,
 157         .CP0_Status_rw_bitmask = 0x1278FF17,
 158         .SEGBITS = 32,
 159         .PABITS = 32,
 160         .insn_flags = CPU_MIPS32,
 161         .mmu_type = MMU_TYPE_R4000,
 162     },
 163     {
 164         .name = "4KEmR1",
 165         .CP0_PRid = 0x00018500,
 166         .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_FMT << CP0C0_MT),
 167         .CP0_Config1 = MIPS_CONFIG1 |
 168                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 169                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 170                        (1 << CP0C1_CA),
 171         .CP0_Config2 = MIPS_CONFIG2,
 172         .CP0_Config3 = MIPS_CONFIG3,
 173         .CP0_LLAddr_rw_bitmask = 0,
 174         .CP0_LLAddr_shift = 4,
 175         .SYNCI_Step = 32,
 176         .CCRes = 2,
 177         .CP0_Status_rw_bitmask = 0x1258FF17,
 178         .SEGBITS = 32,
 179         .PABITS = 32,
 180         .insn_flags = CPU_MIPS32 | ASE_MIPS16,
 181         .mmu_type = MMU_TYPE_FMT,
 182     },
 183     {
 184         .name = "4KEc",
 185         .CP0_PRid = 0x00019000,
 186         .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
 187                     (MMU_TYPE_R4000 << CP0C0_MT),
 188         .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
 189                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 190                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 191                        (0 << CP0C1_CA),
 192         .CP0_Config2 = MIPS_CONFIG2,
 193         .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt),
 194         .CP0_LLAddr_rw_bitmask = 0,
 195         .CP0_LLAddr_shift = 4,
 196         .SYNCI_Step = 32,
 197         .CCRes = 2,
 198         .CP0_Status_rw_bitmask = 0x1278FF17,
 199         .SEGBITS = 32,
 200         .PABITS = 32,
 201         .insn_flags = CPU_MIPS32R2,
 202         .mmu_type = MMU_TYPE_R4000,
 203     },
 204     {
 205         .name = "4KEm",
 206         .CP0_PRid = 0x00019100,
 207         .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
 208                        (MMU_TYPE_FMT << CP0C0_MT),
 209         .CP0_Config1 = MIPS_CONFIG1 |
 210                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 211                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 212                        (1 << CP0C1_CA),
 213         .CP0_Config2 = MIPS_CONFIG2,
 214         .CP0_Config3 = MIPS_CONFIG3,
 215         .CP0_LLAddr_rw_bitmask = 0,
 216         .CP0_LLAddr_shift = 4,
 217         .SYNCI_Step = 32,
 218         .CCRes = 2,
 219         .CP0_Status_rw_bitmask = 0x1258FF17,
 220         .SEGBITS = 32,
 221         .PABITS = 32,
 222         .insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
 223         .mmu_type = MMU_TYPE_FMT,
 224     },
 225     {
 226         .name = "24Kc",
 227         .CP0_PRid = 0x00019300,
 228         .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
 229                        (MMU_TYPE_R4000 << CP0C0_MT),
 230         .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
 231                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 232                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 233                        (1 << CP0C1_CA),
 234         .CP0_Config2 = MIPS_CONFIG2,
 235         .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt),
 236         .CP0_LLAddr_rw_bitmask = 0,
 237         .CP0_LLAddr_shift = 4,
 238         .SYNCI_Step = 32,
 239         .CCRes = 2,
 240         /* No DSP implemented. */
 241         .CP0_Status_rw_bitmask = 0x1278FF1F,
 242         .SEGBITS = 32,
 243         .PABITS = 32,
 244         .insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
 245         .mmu_type = MMU_TYPE_R4000,
 246     },
 247     {
 248         .name = "24Kf",
 249         .CP0_PRid = 0x00019300,
 250         .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
 251                     (MMU_TYPE_R4000 << CP0C0_MT),
 252         .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (15 << CP0C1_MMU) |
 253                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 254                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 255                        (1 << CP0C1_CA),
 256         .CP0_Config2 = MIPS_CONFIG2,
 257         .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt),
 258         .CP0_LLAddr_rw_bitmask = 0,
 259         .CP0_LLAddr_shift = 4,
 260         .SYNCI_Step = 32,
 261         .CCRes = 2,
 262         /* No DSP implemented. */
 263         .CP0_Status_rw_bitmask = 0x3678FF1F,
 264         .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) |
 265                     (1 << FCR0_D) | (1 << FCR0_S) | (0x93 << FCR0_PRID),
 266         .SEGBITS = 32,
 267         .PABITS = 32,
 268         .insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
 269         .mmu_type = MMU_TYPE_R4000,
 270     },
 271     {
 272         .name = "34Kf",
 273         .CP0_PRid = 0x00019500,
 274         .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
 275                        (MMU_TYPE_R4000 << CP0C0_MT),
 276         .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (15 << CP0C1_MMU) |
 277                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 278                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 279                        (1 << CP0C1_CA),
 280         .CP0_Config2 = MIPS_CONFIG2,
 281         .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt) | (1 << CP0C3_MT),
 282         .CP0_LLAddr_rw_bitmask = 0,
 283         .CP0_LLAddr_shift = 0,
 284         .SYNCI_Step = 32,
 285         .CCRes = 2,
 286         /* No DSP implemented. */
 287         .CP0_Status_rw_bitmask = 0x3678FF1F,
 288         /* No DSP implemented. */
 289         .CP0_TCStatus_rw_bitmask = (0 << CP0TCSt_TCU3) | (0 << CP0TCSt_TCU2) |
 290                     (1 << CP0TCSt_TCU1) | (1 << CP0TCSt_TCU0) |
 291                     (0 << CP0TCSt_TMX) | (1 << CP0TCSt_DT) |
 292                     (1 << CP0TCSt_DA) | (1 << CP0TCSt_A) |
 293                     (0x3 << CP0TCSt_TKSU) | (1 << CP0TCSt_IXMT) |
 294                     (0xff << CP0TCSt_TASID),
 295         .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) |
 296                     (1 << FCR0_D) | (1 << FCR0_S) | (0x95 << FCR0_PRID),
 297         .CP0_SRSCtl = (0xf << CP0SRSCtl_HSS),
 298         .CP0_SRSConf0_rw_bitmask = 0x3fffffff,
 299         .CP0_SRSConf0 = (1 << CP0SRSC0_M) | (0x3fe << CP0SRSC0_SRS3) |
 300                     (0x3fe << CP0SRSC0_SRS2) | (0x3fe << CP0SRSC0_SRS1),
 301         .CP0_SRSConf1_rw_bitmask = 0x3fffffff,
 302         .CP0_SRSConf1 = (1 << CP0SRSC1_M) | (0x3fe << CP0SRSC1_SRS6) |
 303                     (0x3fe << CP0SRSC1_SRS5) | (0x3fe << CP0SRSC1_SRS4),
 304         .CP0_SRSConf2_rw_bitmask = 0x3fffffff,
 305         .CP0_SRSConf2 = (1 << CP0SRSC2_M) | (0x3fe << CP0SRSC2_SRS9) |
 306                     (0x3fe << CP0SRSC2_SRS8) | (0x3fe << CP0SRSC2_SRS7),
 307         .CP0_SRSConf3_rw_bitmask = 0x3fffffff,
 308         .CP0_SRSConf3 = (1 << CP0SRSC3_M) | (0x3fe << CP0SRSC3_SRS12) |
 309                     (0x3fe << CP0SRSC3_SRS11) | (0x3fe << CP0SRSC3_SRS10),
 310         .CP0_SRSConf4_rw_bitmask = 0x3fffffff,
 311         .CP0_SRSConf4 = (0x3fe << CP0SRSC4_SRS15) |
 312                     (0x3fe << CP0SRSC4_SRS14) | (0x3fe << CP0SRSC4_SRS13),
 313         .SEGBITS = 32,
 314         .PABITS = 32,
 315         .insn_flags = CPU_MIPS32R2 | ASE_MIPS16 | ASE_DSP | ASE_MT,
 316         .mmu_type = MMU_TYPE_R4000,
 317     },
 318 #if defined(TARGET_MIPS64)
 319     {
 320         .name = "R4000",
 321         .CP0_PRid = 0x00000400,
 322         /* No L2 cache, icache size 8k, dcache size 8k, uncached coherency. */
 323         .CP0_Config0 = (1 << 17) | (0x1 << 9) | (0x1 << 6) | (0x2 << CP0C0_K0),
 324         /* Note: Config1 is only used internally, the R4000 has only Config0. */
 325         .CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU),
 326         .CP0_LLAddr_rw_bitmask = 0xFFFFFFFF,
 327         .CP0_LLAddr_shift = 4,
 328         .SYNCI_Step = 16,
 329         .CCRes = 2,
 330         .CP0_Status_rw_bitmask = 0x3678FFFF,
 331         /* The R4000 has a full 64bit FPU but doesn't use the fcr0 bits. */
 332         .CP1_fcr0 = (0x5 << FCR0_PRID) | (0x0 << FCR0_REV),
 333         .SEGBITS = 40,
 334         .PABITS = 36,
 335         .insn_flags = CPU_MIPS3,
 336         .mmu_type = MMU_TYPE_R4000,
 337     },
 338     {
 339         .name = "VR5432",
 340         .CP0_PRid = 0x00005400,
 341         /* No L2 cache, icache size 8k, dcache size 8k, uncached coherency. */
 342         .CP0_Config0 = (1 << 17) | (0x1 << 9) | (0x1 << 6) | (0x2 << CP0C0_K0),
 343         .CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU),
 344         .CP0_LLAddr_rw_bitmask = 0xFFFFFFFFL,
 345         .CP0_LLAddr_shift = 4,
 346         .SYNCI_Step = 16,
 347         .CCRes = 2,
 348         .CP0_Status_rw_bitmask = 0x3678FFFF,
 349         /* The VR5432 has a full 64bit FPU but doesn't use the fcr0 bits. */
 350         .CP1_fcr0 = (0x54 << FCR0_PRID) | (0x0 << FCR0_REV),
 351         .SEGBITS = 40,
 352         .PABITS = 32,
 353         .insn_flags = CPU_VR54XX,
 354         .mmu_type = MMU_TYPE_R4000,
 355     },
 356     {
 357         .name = "5Kc",
 358         .CP0_PRid = 0x00018100,
 359         .CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) |
 360                        (MMU_TYPE_R4000 << CP0C0_MT),
 361         .CP0_Config1 = MIPS_CONFIG1 | (31 << CP0C1_MMU) |
 362                        (1 << CP0C1_IS) | (4 << CP0C1_IL) | (1 << CP0C1_IA) |
 363                        (1 << CP0C1_DS) | (4 << CP0C1_DL) | (1 << CP0C1_DA) |
 364                        (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
 365         .CP0_Config2 = MIPS_CONFIG2,
 366         .CP0_Config3 = MIPS_CONFIG3,
 367         .CP0_LLAddr_rw_bitmask = 0,
 368         .CP0_LLAddr_shift = 4,
 369         .SYNCI_Step = 32,
 370         .CCRes = 2,
 371         .CP0_Status_rw_bitmask = 0x32F8FFFF,
 372         .SEGBITS = 42,
 373         .PABITS = 36,
 374         .insn_flags = CPU_MIPS64,
 375         .mmu_type = MMU_TYPE_R4000,
 376     },
 377     {
 378         .name = "5Kf",
 379         .CP0_PRid = 0x00018100,
 380         .CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) |
 381                        (MMU_TYPE_R4000 << CP0C0_MT),
 382         .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (31 << CP0C1_MMU) |
 383                        (1 << CP0C1_IS) | (4 << CP0C1_IL) | (1 << CP0C1_IA) |
 384                        (1 << CP0C1_DS) | (4 << CP0C1_DL) | (1 << CP0C1_DA) |
 385                        (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
 386         .CP0_Config2 = MIPS_CONFIG2,
 387         .CP0_Config3 = MIPS_CONFIG3,
 388         .CP0_LLAddr_rw_bitmask = 0,
 389         .CP0_LLAddr_shift = 4,
 390         .SYNCI_Step = 32,
 391         .CCRes = 2,
 392         .CP0_Status_rw_bitmask = 0x36F8FFFF,
 393         /* The 5Kf has F64 / L / W but doesn't use the fcr0 bits. */
 394         .CP1_fcr0 = (1 << FCR0_D) | (1 << FCR0_S) |
 395                     (0x81 << FCR0_PRID) | (0x0 << FCR0_REV),
 396         .SEGBITS = 42,
 397         .PABITS = 36,
 398         .insn_flags = CPU_MIPS64,
 399         .mmu_type = MMU_TYPE_R4000,
 400     },
 401     {
 402         .name = "20Kc",
 403         /* We emulate a later version of the 20Kc, earlier ones had a broken
 404            WAIT instruction. */
 405         .CP0_PRid = 0x000182a0,
 406         .CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) |
 407                     (MMU_TYPE_R4000 << CP0C0_MT) | (1 << CP0C0_VI),
 408         .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (47 << CP0C1_MMU) |
 409                        (2 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) |
 410                        (2 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) |
 411                        (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
 412         .CP0_Config2 = MIPS_CONFIG2,
 413         .CP0_Config3 = MIPS_CONFIG3,
 414         .CP0_LLAddr_rw_bitmask = 0,
 415         .CP0_LLAddr_shift = 0,
 416         .SYNCI_Step = 32,
 417         .CCRes = 1,
 418         .CP0_Status_rw_bitmask = 0x36FBFFFF,
 419         /* The 20Kc has F64 / L / W but doesn't use the fcr0 bits. */
 420         .CP1_fcr0 = (1 << FCR0_3D) | (1 << FCR0_PS) |
 421                     (1 << FCR0_D) | (1 << FCR0_S) |
 422                     (0x82 << FCR0_PRID) | (0x0 << FCR0_REV),
 423         .SEGBITS = 40,
 424         .PABITS = 36,
 425         .insn_flags = CPU_MIPS64 | ASE_MIPS3D,
 426         .mmu_type = MMU_TYPE_R4000,
 427     },
 428     {
 429         /* A generic CPU providing MIPS64 Release 2 features.
 430            FIXME: Eventually this should be replaced by a real CPU model. */
 431         .name = "MIPS64R2-generic",
 432         .CP0_PRid = 0x00010000,
 433         .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | (0x2 << CP0C0_AT) |
 434                        (MMU_TYPE_R4000 << CP0C0_MT),
 435         .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (63 << CP0C1_MMU) |
 436                        (2 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) |
 437                        (2 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) |
 438                        (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
 439         .CP0_Config2 = MIPS_CONFIG2,
 440         .CP0_Config3 = MIPS_CONFIG3 | (1 << CP0C3_LPA),
 441         .CP0_LLAddr_rw_bitmask = 0,
 442         .CP0_LLAddr_shift = 0,
 443         .SYNCI_Step = 32,
 444         .CCRes = 2,
 445         .CP0_Status_rw_bitmask = 0x36FBFFFF,
 446         .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_3D) | (1 << FCR0_PS) |
 447                     (1 << FCR0_L) | (1 << FCR0_W) | (1 << FCR0_D) |
 448                     (1 << FCR0_S) | (0x00 << FCR0_PRID) | (0x0 << FCR0_REV),
 449         .SEGBITS = 42,
 450         /* The architectural limit is 59, but we have hardcoded 36 bit
 451            in some places...
 452         .PABITS = 59, */ /* the architectural limit */
 453         .PABITS = 36,
 454         .insn_flags = CPU_MIPS64R2 | ASE_MIPS3D,
 455         .mmu_type = MMU_TYPE_R4000,
 456     },
 457 #endif
 458 };
 459
 460 static const mips_def_t *cpu_mips_find_by_name (const char *name)
 461 {
 462     int i;
 463
 464     for (i = 0; i < ARRAY_SIZE(mips_defs); i++) {
 465         if (strcasecmp(name, mips_defs[i].name) == 0) {
 466             return &mips_defs[i];
 467         }
 468     }
 469     return NULL;
 470 }
 471
 472 void mips_cpu_list (FILE *f, int (*cpu_fprintf)(FILE *f, const char *fmt, ...))
 473 {
 474     int i;
 475
 476     for (i = 0; i < ARRAY_SIZE(mips_defs); i++) {
 477         (*cpu_fprintf)(f, "MIPS '%s'\n",
 478                        mips_defs[i].name);
 479     }
 480 }
 481
 482 #ifndef CONFIG_USER_ONLY
 483 static void no_mmu_init (CPUMIPSState *env, const mips_def_t *def)
 484 {
 485     env->tlb->nb_tlb = 1;
 486     env->tlb->map_address = &no_mmu_map_address;
 487 }
 488
 489 static void fixed_mmu_init (CPUMIPSState *env, const mips_def_t *def)
 490 {
 491     env->tlb->nb_tlb = 1;
 492     env->tlb->map_address = &fixed_mmu_map_address;
 493 }
 494
 495 static void r4k_mmu_init (CPUMIPSState *env, const mips_def_t *def)
 496 {
 497     env->tlb->nb_tlb = 1 + ((def->CP0_Config1 >> CP0C1_MMU) & 63);
 498     env->tlb->map_address = &r4k_map_address;
 499     env->tlb->helper_tlbwi = r4k_helper_tlbwi;
 500     env->tlb->helper_tlbwr = r4k_helper_tlbwr;
 501     env->tlb->helper_tlbp = r4k_helper_tlbp;
 502     env->tlb->helper_tlbr = r4k_helper_tlbr;
 503 }
 504
 505 static void mmu_init (CPUMIPSState *env, const mips_def_t *def)
 506 {
 507     env->tlb = qemu_mallocz(sizeof(CPUMIPSTLBContext));
 508
 509     switch (def->mmu_type) {
 510         case MMU_TYPE_NONE:
 511             no_mmu_init(env, def);
 512             break;
 513         case MMU_TYPE_R4000:
 514             r4k_mmu_init(env, def);
 515             break;
 516         case MMU_TYPE_FMT:
 517             fixed_mmu_init(env, def);
 518             break;
 519         case MMU_TYPE_R3000:
 520         case MMU_TYPE_R6000:
 521         case MMU_TYPE_R8000:
 522         default:
 523             cpu_abort(env, "MMU type not supported\n");
 524     }
 525 }
 526 #endif /* CONFIG_USER_ONLY */
 527
 528 static void fpu_init (CPUMIPSState *env, const mips_def_t *def)
 529 {
 530     int i;
 531
 532     for (i = 0; i < MIPS_FPU_MAX; i++)
 533         env->fpus[i].fcr0 = def->CP1_fcr0;
 534
 535     memcpy(&env->active_fpu, &env->fpus[0], sizeof(env->active_fpu));
 536 }
 537
 538 static void mvp_init (CPUMIPSState *env, const mips_def_t *def)
 539 {
 540     env->mvp = qemu_mallocz(sizeof(CPUMIPSMVPContext));
 541
 542     /* MVPConf1 implemented, TLB sharable, no gating storage support,
 543        programmable cache partitioning implemented, number of allocatable
 544        and sharable TLB entries, MVP has allocatable TCs, 2 VPEs
 545        implemented, 5 TCs implemented. */
 546     env->mvp->CP0_MVPConf0 = (1 << CP0MVPC0_M) | (1 << CP0MVPC0_TLBS) |
 547                              (0 << CP0MVPC0_GS) | (1 << CP0MVPC0_PCP) |
 548 // TODO: actually do 2 VPEs.
 549 //                             (1 << CP0MVPC0_TCA) | (0x1 << CP0MVPC0_PVPE) |
 550 //                             (0x04 << CP0MVPC0_PTC);
 551                              (1 << CP0MVPC0_TCA) | (0x0 << CP0MVPC0_PVPE) |
 552                              (0x04 << CP0MVPC0_PTC);
 553 #if !defined(CONFIG_USER_ONLY)
 554     /* Usermode has no TLB support */
 555     env->mvp->CP0_MVPConf0 |= (env->tlb->nb_tlb << CP0MVPC0_PTLBE);
 556 #endif
 557
 558     /* Allocatable CP1 have media extensions, allocatable CP1 have FP support,
 559        no UDI implemented, no CP2 implemented, 1 CP1 implemented. */
 560     env->mvp->CP0_MVPConf1 = (1 << CP0MVPC1_CIM) | (1 << CP0MVPC1_CIF) |
 561                              (0x0 << CP0MVPC1_PCX) | (0x0 << CP0MVPC1_PCP2) |
 562                              (0x1 << CP0MVPC1_PCP1);
 563 }