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 /* MMU types, the first four entries have the same layout as the
  49    CP0C0_MT field.  */
  50 enum mips_mmu_types {
  51     MMU_TYPE_NONE,
  52     MMU_TYPE_R4000,
  53     MMU_TYPE_RESERVED,
  54     MMU_TYPE_FMT,
  55     MMU_TYPE_R3000,
  56     MMU_TYPE_R6000,
  57     MMU_TYPE_R8000
  58 };
  59
  60 struct mips_def_t {
  61     const char *name;
  62     int32_t CP0_PRid;
  63     int32_t CP0_Config0;
  64     int32_t CP0_Config1;
  65     int32_t CP0_Config2;
  66     int32_t CP0_Config3;
  67     int32_t CP0_Config6;
  68     int32_t CP0_Config7;
  69     target_ulong CP0_LLAddr_rw_bitmask;
  70     int CP0_LLAddr_shift;
  71     int32_t SYNCI_Step;
  72     int32_t CCRes;
  73     int32_t CP0_Status_rw_bitmask;
  74     int32_t CP0_TCStatus_rw_bitmask;
  75     int32_t CP0_SRSCtl;
  76     int32_t CP1_fcr0;
  77     int32_t SEGBITS;
  78     int32_t PABITS;
  79     int32_t CP0_SRSConf0_rw_bitmask;
  80     int32_t CP0_SRSConf0;
  81     int32_t CP0_SRSConf1_rw_bitmask;
  82     int32_t CP0_SRSConf1;
  83     int32_t CP0_SRSConf2_rw_bitmask;
  84     int32_t CP0_SRSConf2;
  85     int32_t CP0_SRSConf3_rw_bitmask;
  86     int32_t CP0_SRSConf3;
  87     int32_t CP0_SRSConf4_rw_bitmask;
  88     int32_t CP0_SRSConf4;
  89     int insn_flags;
  90     enum mips_mmu_types mmu_type;
  91 };
  92
  93 /*****************************************************************************/
  94 /* MIPS CPU definitions */
  95 static const mips_def_t mips_defs[] =
  96 {
  97     {
  98         .name = "4Kc",
  99         .CP0_PRid = 0x00018000,
 100         .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_R4000 << CP0C0_MT),
 101         .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
 102                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 103                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 104                        (0 << CP0C1_CA),
 105         .CP0_Config2 = MIPS_CONFIG2,
 106         .CP0_Config3 = MIPS_CONFIG3,
 107         .CP0_LLAddr_rw_bitmask = 0,
 108         .CP0_LLAddr_shift = 4,
 109         .SYNCI_Step = 32,
 110         .CCRes = 2,
 111         .CP0_Status_rw_bitmask = 0x1278FF17,
 112         .SEGBITS = 32,
 113         .PABITS = 32,
 114         .insn_flags = CPU_MIPS32,
 115         .mmu_type = MMU_TYPE_R4000,
 116     },
 117     {
 118         .name = "4Km",
 119         .CP0_PRid = 0x00018300,
 120         /* Config1 implemented, fixed mapping MMU,
 121            no virtual icache, uncached coherency. */
 122         .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_FMT << CP0C0_MT),
 123         .CP0_Config1 = MIPS_CONFIG1 |
 124                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 125                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 126                        (1 << CP0C1_CA),
 127         .CP0_Config2 = MIPS_CONFIG2,
 128         .CP0_Config3 = MIPS_CONFIG3,
 129         .CP0_LLAddr_rw_bitmask = 0,
 130         .CP0_LLAddr_shift = 4,
 131         .SYNCI_Step = 32,
 132         .CCRes = 2,
 133         .CP0_Status_rw_bitmask = 0x1258FF17,
 134         .SEGBITS = 32,
 135         .PABITS = 32,
 136         .insn_flags = CPU_MIPS32 | ASE_MIPS16,
 137         .mmu_type = MMU_TYPE_FMT,
 138     },
 139     {
 140         .name = "4KEcR1",
 141         .CP0_PRid = 0x00018400,
 142         .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_R4000 << CP0C0_MT),
 143         .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
 144                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 145                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 146                        (0 << CP0C1_CA),
 147         .CP0_Config2 = MIPS_CONFIG2,
 148         .CP0_Config3 = MIPS_CONFIG3,
 149         .CP0_LLAddr_rw_bitmask = 0,
 150         .CP0_LLAddr_shift = 4,
 151         .SYNCI_Step = 32,
 152         .CCRes = 2,
 153         .CP0_Status_rw_bitmask = 0x1278FF17,
 154         .SEGBITS = 32,
 155         .PABITS = 32,
 156         .insn_flags = CPU_MIPS32,
 157         .mmu_type = MMU_TYPE_R4000,
 158     },
 159     {
 160         .name = "4KEmR1",
 161         .CP0_PRid = 0x00018500,
 162         .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_FMT << CP0C0_MT),
 163         .CP0_Config1 = MIPS_CONFIG1 |
 164                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 165                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 166                        (1 << CP0C1_CA),
 167         .CP0_Config2 = MIPS_CONFIG2,
 168         .CP0_Config3 = MIPS_CONFIG3,
 169         .CP0_LLAddr_rw_bitmask = 0,
 170         .CP0_LLAddr_shift = 4,
 171         .SYNCI_Step = 32,
 172         .CCRes = 2,
 173         .CP0_Status_rw_bitmask = 0x1258FF17,
 174         .SEGBITS = 32,
 175         .PABITS = 32,
 176         .insn_flags = CPU_MIPS32 | ASE_MIPS16,
 177         .mmu_type = MMU_TYPE_FMT,
 178     },
 179     {
 180         .name = "4KEc",
 181         .CP0_PRid = 0x00019000,
 182         .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
 183                     (MMU_TYPE_R4000 << CP0C0_MT),
 184         .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
 185                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 186                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 187                        (0 << CP0C1_CA),
 188         .CP0_Config2 = MIPS_CONFIG2,
 189         .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt),
 190         .CP0_LLAddr_rw_bitmask = 0,
 191         .CP0_LLAddr_shift = 4,
 192         .SYNCI_Step = 32,
 193         .CCRes = 2,
 194         .CP0_Status_rw_bitmask = 0x1278FF17,
 195         .SEGBITS = 32,
 196         .PABITS = 32,
 197         .insn_flags = CPU_MIPS32R2,
 198         .mmu_type = MMU_TYPE_R4000,
 199     },
 200     {
 201         .name = "4KEm",
 202         .CP0_PRid = 0x00019100,
 203         .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
 204                        (MMU_TYPE_FMT << CP0C0_MT),
 205         .CP0_Config1 = MIPS_CONFIG1 |
 206                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 207                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 208                        (1 << CP0C1_CA),
 209         .CP0_Config2 = MIPS_CONFIG2,
 210         .CP0_Config3 = MIPS_CONFIG3,
 211         .CP0_LLAddr_rw_bitmask = 0,
 212         .CP0_LLAddr_shift = 4,
 213         .SYNCI_Step = 32,
 214         .CCRes = 2,
 215         .CP0_Status_rw_bitmask = 0x1258FF17,
 216         .SEGBITS = 32,
 217         .PABITS = 32,
 218         .insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
 219         .mmu_type = MMU_TYPE_FMT,
 220     },
 221     {
 222         .name = "24Kc",
 223         .CP0_PRid = 0x00019300,
 224         .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
 225                        (MMU_TYPE_R4000 << CP0C0_MT),
 226         .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) |
 227                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 228                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 229                        (1 << CP0C1_CA),
 230         .CP0_Config2 = MIPS_CONFIG2,
 231         .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt),
 232         .CP0_LLAddr_rw_bitmask = 0,
 233         .CP0_LLAddr_shift = 4,
 234         .SYNCI_Step = 32,
 235         .CCRes = 2,
 236         /* No DSP implemented. */
 237         .CP0_Status_rw_bitmask = 0x1278FF1F,
 238         .SEGBITS = 32,
 239         .PABITS = 32,
 240         .insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
 241         .mmu_type = MMU_TYPE_R4000,
 242     },
 243     {
 244         .name = "24Kf",
 245         .CP0_PRid = 0x00019300,
 246         .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
 247                     (MMU_TYPE_R4000 << CP0C0_MT),
 248         .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (15 << CP0C1_MMU) |
 249                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 250                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 251                        (1 << CP0C1_CA),
 252         .CP0_Config2 = MIPS_CONFIG2,
 253         .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt),
 254         .CP0_LLAddr_rw_bitmask = 0,
 255         .CP0_LLAddr_shift = 4,
 256         .SYNCI_Step = 32,
 257         .CCRes = 2,
 258         /* No DSP implemented. */
 259         .CP0_Status_rw_bitmask = 0x3678FF1F,
 260         .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) |
 261                     (1 << FCR0_D) | (1 << FCR0_S) | (0x93 << FCR0_PRID),
 262         .SEGBITS = 32,
 263         .PABITS = 32,
 264         .insn_flags = CPU_MIPS32R2 | ASE_MIPS16,
 265         .mmu_type = MMU_TYPE_R4000,
 266     },
 267     {
 268         .name = "34Kf",
 269         .CP0_PRid = 0x00019500,
 270         .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) |
 271                        (MMU_TYPE_R4000 << CP0C0_MT),
 272         .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (15 << CP0C1_MMU) |
 273                        (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) |
 274                        (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) |
 275                        (1 << CP0C1_CA),
 276         .CP0_Config2 = MIPS_CONFIG2,
 277         .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt) | (1 << CP0C3_MT),
 278         .CP0_LLAddr_rw_bitmask = 0,
 279         .CP0_LLAddr_shift = 0,
 280         .SYNCI_Step = 32,
 281         .CCRes = 2,
 282         /* No DSP implemented. */
 283         .CP0_Status_rw_bitmask = 0x3678FF1F,
 284         /* No DSP implemented. */
 285         .CP0_TCStatus_rw_bitmask = (0 << CP0TCSt_TCU3) | (0 << CP0TCSt_TCU2) |
 286                     (1 << CP0TCSt_TCU1) | (1 << CP0TCSt_TCU0) |
 287                     (0 << CP0TCSt_TMX) | (1 << CP0TCSt_DT) |
 288                     (1 << CP0TCSt_DA) | (1 << CP0TCSt_A) |
 289                     (0x3 << CP0TCSt_TKSU) | (1 << CP0TCSt_IXMT) |
 290                     (0xff << CP0TCSt_TASID),
 291         .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) |
 292                     (1 << FCR0_D) | (1 << FCR0_S) | (0x95 << FCR0_PRID),
 293         .CP0_SRSCtl = (0xf << CP0SRSCtl_HSS),
 294         .CP0_SRSConf0_rw_bitmask = 0x3fffffff,
 295         .CP0_SRSConf0 = (1 << CP0SRSC0_M) | (0x3fe << CP0SRSC0_SRS3) |
 296                     (0x3fe << CP0SRSC0_SRS2) | (0x3fe << CP0SRSC0_SRS1),
 297         .CP0_SRSConf1_rw_bitmask = 0x3fffffff,
 298         .CP0_SRSConf1 = (1 << CP0SRSC1_M) | (0x3fe << CP0SRSC1_SRS6) |
 299                     (0x3fe << CP0SRSC1_SRS5) | (0x3fe << CP0SRSC1_SRS4),
 300         .CP0_SRSConf2_rw_bitmask = 0x3fffffff,
 301         .CP0_SRSConf2 = (1 << CP0SRSC2_M) | (0x3fe << CP0SRSC2_SRS9) |
 302                     (0x3fe << CP0SRSC2_SRS8) | (0x3fe << CP0SRSC2_SRS7),
 303         .CP0_SRSConf3_rw_bitmask = 0x3fffffff,
 304         .CP0_SRSConf3 = (1 << CP0SRSC3_M) | (0x3fe << CP0SRSC3_SRS12) |
 305                     (0x3fe << CP0SRSC3_SRS11) | (0x3fe << CP0SRSC3_SRS10),
 306         .CP0_SRSConf4_rw_bitmask = 0x3fffffff,
 307         .CP0_SRSConf4 = (0x3fe << CP0SRSC4_SRS15) |
 308                     (0x3fe << CP0SRSC4_SRS14) | (0x3fe << CP0SRSC4_SRS13),
 309         .SEGBITS = 32,
 310         .PABITS = 32,
 311         .insn_flags = CPU_MIPS32R2 | ASE_MIPS16 | ASE_DSP | ASE_MT,
 312         .mmu_type = MMU_TYPE_R4000,
 313     },
 314 #if defined(TARGET_MIPS64)
 315     {
 316         .name = "R4000",
 317         .CP0_PRid = 0x00000400,
 318         /* No L2 cache, icache size 8k, dcache size 8k, uncached coherency. */
 319         .CP0_Config0 = (1 << 17) | (0x1 << 9) | (0x1 << 6) | (0x2 << CP0C0_K0),
 320         /* Note: Config1 is only used internally, the R4000 has only Config0. */
 321         .CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU),
 322         .CP0_LLAddr_rw_bitmask = 0xFFFFFFFF,
 323         .CP0_LLAddr_shift = 4,
 324         .SYNCI_Step = 16,
 325         .CCRes = 2,
 326         .CP0_Status_rw_bitmask = 0x3678FFFF,
 327         /* The R4000 has a full 64bit FPU but doesn't use the fcr0 bits. */
 328         .CP1_fcr0 = (0x5 << FCR0_PRID) | (0x0 << FCR0_REV),
 329         .SEGBITS = 40,
 330         .PABITS = 36,
 331         .insn_flags = CPU_MIPS3,
 332         .mmu_type = MMU_TYPE_R4000,
 333     },
 334     {
 335         .name = "VR5432",
 336         .CP0_PRid = 0x00005400,
 337         /* No L2 cache, icache size 8k, dcache size 8k, uncached coherency. */
 338         .CP0_Config0 = (1 << 17) | (0x1 << 9) | (0x1 << 6) | (0x2 << CP0C0_K0),
 339         .CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU),
 340         .CP0_LLAddr_rw_bitmask = 0xFFFFFFFFL,
 341         .CP0_LLAddr_shift = 4,
 342         .SYNCI_Step = 16,
 343         .CCRes = 2,
 344         .CP0_Status_rw_bitmask = 0x3678FFFF,
 345         /* The VR5432 has a full 64bit FPU but doesn't use the fcr0 bits. */
 346         .CP1_fcr0 = (0x54 << FCR0_PRID) | (0x0 << FCR0_REV),
 347         .SEGBITS = 40,
 348         .PABITS = 32,
 349         .insn_flags = CPU_VR54XX,
 350         .mmu_type = MMU_TYPE_R4000,
 351     },
 352     {
 353         .name = "5Kc",
 354         .CP0_PRid = 0x00018100,
 355         .CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) |
 356                        (MMU_TYPE_R4000 << CP0C0_MT),
 357         .CP0_Config1 = MIPS_CONFIG1 | (31 << CP0C1_MMU) |
 358                        (1 << CP0C1_IS) | (4 << CP0C1_IL) | (1 << CP0C1_IA) |
 359                        (1 << CP0C1_DS) | (4 << CP0C1_DL) | (1 << CP0C1_DA) |
 360                        (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
 361         .CP0_Config2 = MIPS_CONFIG2,
 362         .CP0_Config3 = MIPS_CONFIG3,
 363         .CP0_LLAddr_rw_bitmask = 0,
 364         .CP0_LLAddr_shift = 4,
 365         .SYNCI_Step = 32,
 366         .CCRes = 2,
 367         .CP0_Status_rw_bitmask = 0x32F8FFFF,
 368         .SEGBITS = 42,
 369         .PABITS = 36,
 370         .insn_flags = CPU_MIPS64,
 371         .mmu_type = MMU_TYPE_R4000,
 372     },
 373     {
 374         .name = "5Kf",
 375         .CP0_PRid = 0x00018100,
 376         .CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) |
 377                        (MMU_TYPE_R4000 << CP0C0_MT),
 378         .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (31 << CP0C1_MMU) |
 379                        (1 << CP0C1_IS) | (4 << CP0C1_IL) | (1 << CP0C1_IA) |
 380                        (1 << CP0C1_DS) | (4 << CP0C1_DL) | (1 << CP0C1_DA) |
 381                        (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
 382         .CP0_Config2 = MIPS_CONFIG2,
 383         .CP0_Config3 = MIPS_CONFIG3,
 384         .CP0_LLAddr_rw_bitmask = 0,
 385         .CP0_LLAddr_shift = 4,
 386         .SYNCI_Step = 32,
 387         .CCRes = 2,
 388         .CP0_Status_rw_bitmask = 0x36F8FFFF,
 389         /* The 5Kf has F64 / L / W but doesn't use the fcr0 bits. */
 390         .CP1_fcr0 = (1 << FCR0_D) | (1 << FCR0_S) |
 391                     (0x81 << FCR0_PRID) | (0x0 << FCR0_REV),
 392         .SEGBITS = 42,
 393         .PABITS = 36,
 394         .insn_flags = CPU_MIPS64,
 395         .mmu_type = MMU_TYPE_R4000,
 396     },
 397     {
 398         .name = "20Kc",
 399         /* We emulate a later version of the 20Kc, earlier ones had a broken
 400            WAIT instruction. */
 401         .CP0_PRid = 0x000182a0,
 402         .CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) |
 403                     (MMU_TYPE_R4000 << CP0C0_MT) | (1 << CP0C0_VI),
 404         .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (47 << CP0C1_MMU) |
 405                        (2 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) |
 406                        (2 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) |
 407                        (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
 408         .CP0_Config2 = MIPS_CONFIG2,
 409         .CP0_Config3 = MIPS_CONFIG3,
 410         .CP0_LLAddr_rw_bitmask = 0,
 411         .CP0_LLAddr_shift = 0,
 412         .SYNCI_Step = 32,
 413         .CCRes = 1,
 414         .CP0_Status_rw_bitmask = 0x36FBFFFF,
 415         /* The 20Kc has F64 / L / W but doesn't use the fcr0 bits. */
 416         .CP1_fcr0 = (1 << FCR0_3D) | (1 << FCR0_PS) |
 417                     (1 << FCR0_D) | (1 << FCR0_S) |
 418                     (0x82 << FCR0_PRID) | (0x0 << FCR0_REV),
 419         .SEGBITS = 40,
 420         .PABITS = 36,
 421         .insn_flags = CPU_MIPS64 | ASE_MIPS3D,
 422         .mmu_type = MMU_TYPE_R4000,
 423     },
 424     {
 425         /* A generic CPU providing MIPS64 Release 2 features.
 426            FIXME: Eventually this should be replaced by a real CPU model. */
 427         .name = "MIPS64R2-generic",
 428         .CP0_PRid = 0x00010000,
 429         .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | (0x2 << CP0C0_AT) |
 430                        (MMU_TYPE_R4000 << CP0C0_MT),
 431         .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (63 << CP0C1_MMU) |
 432                        (2 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) |
 433                        (2 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) |
 434                        (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP),
 435         .CP0_Config2 = MIPS_CONFIG2,
 436         .CP0_Config3 = MIPS_CONFIG3 | (1 << CP0C3_LPA),
 437         .CP0_LLAddr_rw_bitmask = 0,
 438         .CP0_LLAddr_shift = 0,
 439         .SYNCI_Step = 32,
 440         .CCRes = 2,
 441         .CP0_Status_rw_bitmask = 0x36FBFFFF,
 442         .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_3D) | (1 << FCR0_PS) |
 443                     (1 << FCR0_L) | (1 << FCR0_W) | (1 << FCR0_D) |
 444                     (1 << FCR0_S) | (0x00 << FCR0_PRID) | (0x0 << FCR0_REV),
 445         .SEGBITS = 42,
 446         /* The architectural limit is 59, but we have hardcoded 36 bit
 447            in some places...
 448         .PABITS = 59, */ /* the architectural limit */
 449         .PABITS = 36,
 450         .insn_flags = CPU_MIPS64R2 | ASE_MIPS3D,
 451         .mmu_type = MMU_TYPE_R4000,
 452     },
 453     {
 454         .name = "Loongson-2E",
 455         .CP0_PRid = 0x6302,
 456         /*64KB I-cache and d-cache. 4 way with 32 bit cache line size*/
 457         .CP0_Config0 = (0x1<<17) | (0x1<<16) | (0x1<<11) | (0x1<<8) | (0x1<<5) |
 458                        (0x1<<4) | (0x1<<1),
 459         /* Note: Config1 is only used internally, Loongson-2E has only Config0. */
 460         .CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU),
 461         .SYNCI_Step = 16,
 462         .CCRes = 2,
 463         .CP0_Status_rw_bitmask = 0x35D0FFFF,
 464         .CP1_fcr0 = (0x5 << FCR0_PRID) | (0x1 << FCR0_REV),
 465         .SEGBITS = 40,
 466         .PABITS = 40,
 467         .insn_flags = CPU_LOONGSON2E,
 468         .mmu_type = MMU_TYPE_R4000,
 469     },
 470     {
 471       .name = "Loongson-2F",
 472       .CP0_PRid = 0x6303,
 473       /*64KB I-cache and d-cache. 4 way with 32 bit cache line size*/
 474       .CP0_Config0 = (0x1<<17) | (0x1<<16) | (0x1<<11) | (0x1<<8) | (0x1<<5) |
 475                      (0x1<<4) | (0x1<<1),
 476       /* Note: Config1 is only used internally, Loongson-2F has only Config0. */
 477       .CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU),
 478       .SYNCI_Step = 16,
 479       .CCRes = 2,
 480       .CP0_Status_rw_bitmask = 0xF5D0FF1F,   /*bit5:7 not writeable*/
 481       .CP1_fcr0 = (0x5 << FCR0_PRID) | (0x1 << FCR0_REV),
 482       .SEGBITS = 40,
 483       .PABITS = 40,
 484       .insn_flags = CPU_LOONGSON2F,
 485       .mmu_type = MMU_TYPE_R4000,
 486     },
 487
 488 #endif
 489 };
 490
 491 static const mips_def_t *cpu_mips_find_by_name (const char *name)
 492 {
 493     int i;
 494
 495     for (i = 0; i < ARRAY_SIZE(mips_defs); i++) {
 496         if (strcasecmp(name, mips_defs[i].name) == 0) {
 497             return &mips_defs[i];
 498         }
 499     }
 500     return NULL;
 501 }
 502
 503 void mips_cpu_list (FILE *f, fprintf_function cpu_fprintf)
 504 {
 505     int i;
 506
 507     for (i = 0; i < ARRAY_SIZE(mips_defs); i++) {
 508         (*cpu_fprintf)(f, "MIPS '%s'\n",
 509                        mips_defs[i].name);
 510     }
 511 }
 512
 513 #ifndef CONFIG_USER_ONLY
 514 static void no_mmu_init (CPUMIPSState *env, const mips_def_t *def)
 515 {
 516     env->tlb->nb_tlb = 1;
 517     env->tlb->map_address = &no_mmu_map_address;
 518 }
 519
 520 static void fixed_mmu_init (CPUMIPSState *env, const mips_def_t *def)
 521 {
 522     env->tlb->nb_tlb = 1;
 523     env->tlb->map_address = &fixed_mmu_map_address;
 524 }
 525
 526 static void r4k_mmu_init (CPUMIPSState *env, const mips_def_t *def)
 527 {
 528     env->tlb->nb_tlb = 1 + ((def->CP0_Config1 >> CP0C1_MMU) & 63);
 529     env->tlb->map_address = &r4k_map_address;
 530     env->tlb->helper_tlbwi = r4k_helper_tlbwi;
 531     env->tlb->helper_tlbwr = r4k_helper_tlbwr;
 532     env->tlb->helper_tlbp = r4k_helper_tlbp;
 533     env->tlb->helper_tlbr = r4k_helper_tlbr;
 534 }
 535
 536 static void mmu_init (CPUMIPSState *env, const mips_def_t *def)
 537 {
 538     env->tlb = qemu_mallocz(sizeof(CPUMIPSTLBContext));
 539
 540     switch (def->mmu_type) {
 541         case MMU_TYPE_NONE:
 542             no_mmu_init(env, def);
 543             break;
 544         case MMU_TYPE_R4000:
 545             r4k_mmu_init(env, def);
 546             break;
 547         case MMU_TYPE_FMT:
 548             fixed_mmu_init(env, def);
 549             break;
 550         case MMU_TYPE_R3000:
 551         case MMU_TYPE_R6000:
 552         case MMU_TYPE_R8000:
 553         default:
 554             cpu_abort(env, "MMU type not supported\n");
 555     }
 556 }
 557 #endif /* CONFIG_USER_ONLY */
 558
 559 static void fpu_init (CPUMIPSState *env, const mips_def_t *def)
 560 {
 561     int i;
 562
 563     for (i = 0; i < MIPS_FPU_MAX; i++)
 564         env->fpus[i].fcr0 = def->CP1_fcr0;
 565
 566     memcpy(&env->active_fpu, &env->fpus[0], sizeof(env->active_fpu));
 567 }
 568
 569 static void mvp_init (CPUMIPSState *env, const mips_def_t *def)
 570 {
 571     env->mvp = qemu_mallocz(sizeof(CPUMIPSMVPContext));
 572
 573     /* MVPConf1 implemented, TLB sharable, no gating storage support,
 574        programmable cache partitioning implemented, number of allocatable
 575        and sharable TLB entries, MVP has allocatable TCs, 2 VPEs
 576        implemented, 5 TCs implemented. */
 577     env->mvp->CP0_MVPConf0 = (1 << CP0MVPC0_M) | (1 << CP0MVPC0_TLBS) |
 578                              (0 << CP0MVPC0_GS) | (1 << CP0MVPC0_PCP) |
 579 // TODO: actually do 2 VPEs.
 580 //                             (1 << CP0MVPC0_TCA) | (0x1 << CP0MVPC0_PVPE) |
 581 //                             (0x04 << CP0MVPC0_PTC);
 582                              (1 << CP0MVPC0_TCA) | (0x0 << CP0MVPC0_PVPE) |
 583                              (0x04 << CP0MVPC0_PTC);
 584 #if !defined(CONFIG_USER_ONLY)
 585     /* Usermode has no TLB support */
 586     env->mvp->CP0_MVPConf0 |= (env->tlb->nb_tlb << CP0MVPC0_PTLBE);
 587 #endif
 588
 589     /* Allocatable CP1 have media extensions, allocatable CP1 have FP support,
 590        no UDI implemented, no CP2 implemented, 1 CP1 implemented. */
 591     env->mvp->CP0_MVPConf1 = (1 << CP0MVPC1_CIM) | (1 << CP0MVPC1_CIF) |
 592                              (0x0 << CP0MVPC1_PCX) | (0x0 << CP0MVPC1_PCP2) |
 593                              (0x1 << CP0MVPC1_PCP1);
 594 }