| /* |
| * MIPS emulation for qemu: CPU initialisation routines. |
| * |
| * Copyright (c) 2004-2005 Jocelyn Mayer |
| * Copyright (c) 2007 Herve Poussineau |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| /* CPU / CPU family specific config register values. */ |
| |
| /* Have config1, uncached coherency */ |
| #define MIPS_CONFIG0 \ |
| ((1U << CP0C0_M) | (0x2 << CP0C0_K0)) |
| |
| /* Have config2, no coprocessor2 attached, no MDMX support attached, |
| no performance counters, watch registers present, |
| no code compression, EJTAG present, no FPU */ |
| #define MIPS_CONFIG1 \ |
| ((1U << CP0C1_M) | \ |
| (0 << CP0C1_C2) | (0 << CP0C1_MD) | (0 << CP0C1_PC) | \ |
| (1 << CP0C1_WR) | (0 << CP0C1_CA) | (1 << CP0C1_EP) | \ |
| (0 << CP0C1_FP)) |
| |
| /* Have config3, no tertiary/secondary caches implemented */ |
| #define MIPS_CONFIG2 \ |
| ((1U << CP0C2_M)) |
| |
| /* No config4, no DSP ASE, no large physaddr (PABITS), |
| no external interrupt controller, no vectored interrupts, |
| no 1kb pages, no SmartMIPS ASE, no trace logic */ |
| #define MIPS_CONFIG3 \ |
| ((0 << CP0C3_M) | (0 << CP0C3_DSPP) | (0 << CP0C3_LPA) | \ |
| (0 << CP0C3_VEIC) | (0 << CP0C3_VInt) | (0 << CP0C3_SP) | \ |
| (0 << CP0C3_SM) | (0 << CP0C3_TL)) |
| |
| #define MIPS_CONFIG4 \ |
| ((0 << CP0C4_M)) |
| |
| #define MIPS_CONFIG5 \ |
| ((0 << CP0C5_M)) |
| |
| /* MMU types, the first four entries have the same layout as the |
| CP0C0_MT field. */ |
| enum mips_mmu_types { |
| MMU_TYPE_NONE, |
| MMU_TYPE_R4000, |
| MMU_TYPE_RESERVED, |
| MMU_TYPE_FMT, |
| MMU_TYPE_R3000, |
| MMU_TYPE_R6000, |
| MMU_TYPE_R8000 |
| }; |
| |
| struct mips_def_t { |
| const char *name; |
| int32_t CP0_PRid; |
| int32_t CP0_Config0; |
| int32_t CP0_Config1; |
| int32_t CP0_Config2; |
| int32_t CP0_Config3; |
| int32_t CP0_Config4; |
| int32_t CP0_Config4_rw_bitmask; |
| int32_t CP0_Config5; |
| int32_t CP0_Config5_rw_bitmask; |
| int32_t CP0_Config6; |
| int32_t CP0_Config7; |
| target_ulong CP0_LLAddr_rw_bitmask; |
| int CP0_LLAddr_shift; |
| int32_t SYNCI_Step; |
| int32_t CCRes; |
| int32_t CP0_Status_rw_bitmask; |
| int32_t CP0_TCStatus_rw_bitmask; |
| int32_t CP0_SRSCtl; |
| int32_t CP1_fcr0; |
| int32_t MSAIR; |
| int32_t SEGBITS; |
| int32_t PABITS; |
| int32_t CP0_SRSConf0_rw_bitmask; |
| int32_t CP0_SRSConf0; |
| int32_t CP0_SRSConf1_rw_bitmask; |
| int32_t CP0_SRSConf1; |
| int32_t CP0_SRSConf2_rw_bitmask; |
| int32_t CP0_SRSConf2; |
| int32_t CP0_SRSConf3_rw_bitmask; |
| int32_t CP0_SRSConf3; |
| int32_t CP0_SRSConf4_rw_bitmask; |
| int32_t CP0_SRSConf4; |
| int32_t CP0_PageGrain_rw_bitmask; |
| int32_t CP0_PageGrain; |
| int insn_flags; |
| enum mips_mmu_types mmu_type; |
| }; |
| |
| /*****************************************************************************/ |
| /* MIPS CPU definitions */ |
| static const mips_def_t mips_defs[] = |
| { |
| { |
| .name = "4Kc", |
| .CP0_PRid = 0x00018000, |
| .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_R4000 << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) | |
| (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) | |
| (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) | |
| (0 << CP0C1_CA), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3, |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 4, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x1278FF17, |
| .SEGBITS = 32, |
| .PABITS = 32, |
| .insn_flags = CPU_MIPS32, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| .name = "4Km", |
| .CP0_PRid = 0x00018300, |
| /* Config1 implemented, fixed mapping MMU, |
| no virtual icache, uncached coherency. */ |
| .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_FMT << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | |
| (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) | |
| (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) | |
| (1 << CP0C1_CA), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3, |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 4, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x1258FF17, |
| .SEGBITS = 32, |
| .PABITS = 32, |
| .insn_flags = CPU_MIPS32 | ASE_MIPS16, |
| .mmu_type = MMU_TYPE_FMT, |
| }, |
| { |
| .name = "4KEcR1", |
| .CP0_PRid = 0x00018400, |
| .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_R4000 << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) | |
| (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) | |
| (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) | |
| (0 << CP0C1_CA), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3, |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 4, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x1278FF17, |
| .SEGBITS = 32, |
| .PABITS = 32, |
| .insn_flags = CPU_MIPS32, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| .name = "4KEmR1", |
| .CP0_PRid = 0x00018500, |
| .CP0_Config0 = MIPS_CONFIG0 | (MMU_TYPE_FMT << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | |
| (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) | |
| (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) | |
| (1 << CP0C1_CA), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3, |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 4, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x1258FF17, |
| .SEGBITS = 32, |
| .PABITS = 32, |
| .insn_flags = CPU_MIPS32 | ASE_MIPS16, |
| .mmu_type = MMU_TYPE_FMT, |
| }, |
| { |
| .name = "4KEc", |
| .CP0_PRid = 0x00019000, |
| .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | |
| (MMU_TYPE_R4000 << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) | |
| (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) | |
| (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) | |
| (0 << CP0C1_CA), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt), |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 4, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x1278FF17, |
| .SEGBITS = 32, |
| .PABITS = 32, |
| .insn_flags = CPU_MIPS32R2, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| .name = "4KEm", |
| .CP0_PRid = 0x00019100, |
| .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | |
| (MMU_TYPE_FMT << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | |
| (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) | |
| (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) | |
| (1 << CP0C1_CA), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3, |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 4, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x1258FF17, |
| .SEGBITS = 32, |
| .PABITS = 32, |
| .insn_flags = CPU_MIPS32R2 | ASE_MIPS16, |
| .mmu_type = MMU_TYPE_FMT, |
| }, |
| { |
| .name = "24Kc", |
| .CP0_PRid = 0x00019300, |
| .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | |
| (MMU_TYPE_R4000 << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | (15 << CP0C1_MMU) | |
| (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) | |
| (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) | |
| (1 << CP0C1_CA), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt), |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 4, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| /* No DSP implemented. */ |
| .CP0_Status_rw_bitmask = 0x1278FF1F, |
| .SEGBITS = 32, |
| .PABITS = 32, |
| .insn_flags = CPU_MIPS32R2 | ASE_MIPS16, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| .name = "24Kf", |
| .CP0_PRid = 0x00019300, |
| .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | |
| (MMU_TYPE_R4000 << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (15 << CP0C1_MMU) | |
| (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) | |
| (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) | |
| (1 << CP0C1_CA), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3 | (0 << CP0C3_VInt), |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 4, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| /* No DSP implemented. */ |
| .CP0_Status_rw_bitmask = 0x3678FF1F, |
| .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) | |
| (1 << FCR0_D) | (1 << FCR0_S) | (0x93 << FCR0_PRID), |
| .SEGBITS = 32, |
| .PABITS = 32, |
| .insn_flags = CPU_MIPS32R2 | ASE_MIPS16, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| .name = "34Kf", |
| .CP0_PRid = 0x00019500, |
| .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | |
| (MMU_TYPE_R4000 << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (15 << CP0C1_MMU) | |
| (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) | |
| (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) | |
| (1 << CP0C1_CA), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3 | (1 << CP0C3_VInt) | (1 << CP0C3_MT) | |
| (1 << CP0C3_DSPP), |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 0, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x3778FF1F, |
| .CP0_TCStatus_rw_bitmask = (0 << CP0TCSt_TCU3) | (0 << CP0TCSt_TCU2) | |
| (1 << CP0TCSt_TCU1) | (1 << CP0TCSt_TCU0) | |
| (0 << CP0TCSt_TMX) | (1 << CP0TCSt_DT) | |
| (1 << CP0TCSt_DA) | (1 << CP0TCSt_A) | |
| (0x3 << CP0TCSt_TKSU) | (1 << CP0TCSt_IXMT) | |
| (0xff << CP0TCSt_TASID), |
| .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) | |
| (1 << FCR0_D) | (1 << FCR0_S) | (0x95 << FCR0_PRID), |
| .CP0_SRSCtl = (0xf << CP0SRSCtl_HSS), |
| .CP0_SRSConf0_rw_bitmask = 0x3fffffff, |
| .CP0_SRSConf0 = (1U << CP0SRSC0_M) | (0x3fe << CP0SRSC0_SRS3) | |
| (0x3fe << CP0SRSC0_SRS2) | (0x3fe << CP0SRSC0_SRS1), |
| .CP0_SRSConf1_rw_bitmask = 0x3fffffff, |
| .CP0_SRSConf1 = (1U << CP0SRSC1_M) | (0x3fe << CP0SRSC1_SRS6) | |
| (0x3fe << CP0SRSC1_SRS5) | (0x3fe << CP0SRSC1_SRS4), |
| .CP0_SRSConf2_rw_bitmask = 0x3fffffff, |
| .CP0_SRSConf2 = (1U << CP0SRSC2_M) | (0x3fe << CP0SRSC2_SRS9) | |
| (0x3fe << CP0SRSC2_SRS8) | (0x3fe << CP0SRSC2_SRS7), |
| .CP0_SRSConf3_rw_bitmask = 0x3fffffff, |
| .CP0_SRSConf3 = (1U << CP0SRSC3_M) | (0x3fe << CP0SRSC3_SRS12) | |
| (0x3fe << CP0SRSC3_SRS11) | (0x3fe << CP0SRSC3_SRS10), |
| .CP0_SRSConf4_rw_bitmask = 0x3fffffff, |
| .CP0_SRSConf4 = (0x3fe << CP0SRSC4_SRS15) | |
| (0x3fe << CP0SRSC4_SRS14) | (0x3fe << CP0SRSC4_SRS13), |
| .SEGBITS = 32, |
| .PABITS = 32, |
| .insn_flags = CPU_MIPS32R2 | ASE_MIPS16 | ASE_DSP | ASE_MT, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| .name = "74Kf", |
| .CP0_PRid = 0x00019700, |
| .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | |
| (MMU_TYPE_R4000 << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (15 << CP0C1_MMU) | |
| (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) | |
| (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) | |
| (1 << CP0C1_CA), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3 | (1 << CP0C3_DSP2P) | (1 << CP0C3_DSPP) | |
| (0 << CP0C3_VInt), |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 4, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x3778FF1F, |
| .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) | |
| (1 << FCR0_D) | (1 << FCR0_S) | (0x93 << FCR0_PRID), |
| .SEGBITS = 32, |
| .PABITS = 32, |
| .insn_flags = CPU_MIPS32R2 | ASE_MIPS16 | ASE_DSP | ASE_DSPR2, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| /* A generic CPU providing MIPS32 Release 5 features. |
| FIXME: Eventually this should be replaced by a real CPU model. */ |
| .name = "mips32r5-generic", |
| .CP0_PRid = 0x00019700, |
| .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | |
| (MMU_TYPE_R4000 << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (15 << CP0C1_MMU) | |
| (0 << CP0C1_IS) | (3 << CP0C1_IL) | (1 << CP0C1_IA) | |
| (0 << CP0C1_DS) | (3 << CP0C1_DL) | (1 << CP0C1_DA) | |
| (1 << CP0C1_CA), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3 | (1U << CP0C3_M) | (1 << CP0C3_MSAP), |
| .CP0_Config4 = MIPS_CONFIG4 | (1U << CP0C4_M), |
| .CP0_Config4_rw_bitmask = 0, |
| .CP0_Config5 = MIPS_CONFIG5 | (1 << CP0C5_UFR), |
| .CP0_Config5_rw_bitmask = (0 << CP0C5_M) | (1 << CP0C5_K) | |
| (1 << CP0C5_CV) | (0 << CP0C5_EVA) | |
| (1 << CP0C5_MSAEn) | (1 << CP0C5_UFR) | |
| (0 << CP0C5_NFExists), |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 4, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x3778FF1F, |
| .CP1_fcr0 = (1 << FCR0_UFRP) | (1 << FCR0_F64) | (1 << FCR0_L) | |
| (1 << FCR0_W) | (1 << FCR0_D) | (1 << FCR0_S) | |
| (0x93 << FCR0_PRID), |
| .SEGBITS = 32, |
| .PABITS = 32, |
| .insn_flags = CPU_MIPS32R5 | ASE_MIPS16 | ASE_MSA, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| #if defined(TARGET_MIPS64) |
| { |
| .name = "R4000", |
| .CP0_PRid = 0x00000400, |
| /* No L2 cache, icache size 8k, dcache size 8k, uncached coherency. */ |
| .CP0_Config0 = (1 << 17) | (0x1 << 9) | (0x1 << 6) | (0x2 << CP0C0_K0), |
| /* Note: Config1 is only used internally, the R4000 has only Config0. */ |
| .CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU), |
| .CP0_LLAddr_rw_bitmask = 0xFFFFFFFF, |
| .CP0_LLAddr_shift = 4, |
| .SYNCI_Step = 16, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x3678FFFF, |
| /* The R4000 has a full 64bit FPU but doesn't use the fcr0 bits. */ |
| .CP1_fcr0 = (0x5 << FCR0_PRID) | (0x0 << FCR0_REV), |
| .SEGBITS = 40, |
| .PABITS = 36, |
| .insn_flags = CPU_MIPS3, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| .name = "VR5432", |
| .CP0_PRid = 0x00005400, |
| /* No L2 cache, icache size 8k, dcache size 8k, uncached coherency. */ |
| .CP0_Config0 = (1 << 17) | (0x1 << 9) | (0x1 << 6) | (0x2 << CP0C0_K0), |
| .CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU), |
| .CP0_LLAddr_rw_bitmask = 0xFFFFFFFFL, |
| .CP0_LLAddr_shift = 4, |
| .SYNCI_Step = 16, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x3678FFFF, |
| /* The VR5432 has a full 64bit FPU but doesn't use the fcr0 bits. */ |
| .CP1_fcr0 = (0x54 << FCR0_PRID) | (0x0 << FCR0_REV), |
| .SEGBITS = 40, |
| .PABITS = 32, |
| .insn_flags = CPU_VR54XX, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| .name = "5Kc", |
| .CP0_PRid = 0x00018100, |
| .CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) | |
| (MMU_TYPE_R4000 << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | (31 << CP0C1_MMU) | |
| (1 << CP0C1_IS) | (4 << CP0C1_IL) | (1 << CP0C1_IA) | |
| (1 << CP0C1_DS) | (4 << CP0C1_DL) | (1 << CP0C1_DA) | |
| (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3, |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 4, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x32F8FFFF, |
| .SEGBITS = 42, |
| .PABITS = 36, |
| .insn_flags = CPU_MIPS64, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| .name = "5Kf", |
| .CP0_PRid = 0x00018100, |
| .CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) | |
| (MMU_TYPE_R4000 << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (31 << CP0C1_MMU) | |
| (1 << CP0C1_IS) | (4 << CP0C1_IL) | (1 << CP0C1_IA) | |
| (1 << CP0C1_DS) | (4 << CP0C1_DL) | (1 << CP0C1_DA) | |
| (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3, |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 4, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x36F8FFFF, |
| /* The 5Kf has F64 / L / W but doesn't use the fcr0 bits. */ |
| .CP1_fcr0 = (1 << FCR0_D) | (1 << FCR0_S) | |
| (0x81 << FCR0_PRID) | (0x0 << FCR0_REV), |
| .SEGBITS = 42, |
| .PABITS = 36, |
| .insn_flags = CPU_MIPS64, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| .name = "20Kc", |
| /* We emulate a later version of the 20Kc, earlier ones had a broken |
| WAIT instruction. */ |
| .CP0_PRid = 0x000182a0, |
| .CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AT) | |
| (MMU_TYPE_R4000 << CP0C0_MT) | (1 << CP0C0_VI), |
| .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (47 << CP0C1_MMU) | |
| (2 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) | |
| (2 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) | |
| (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3, |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 0, |
| .SYNCI_Step = 32, |
| .CCRes = 1, |
| .CP0_Status_rw_bitmask = 0x36FBFFFF, |
| /* The 20Kc has F64 / L / W but doesn't use the fcr0 bits. */ |
| .CP1_fcr0 = (1 << FCR0_3D) | (1 << FCR0_PS) | |
| (1 << FCR0_D) | (1 << FCR0_S) | |
| (0x82 << FCR0_PRID) | (0x0 << FCR0_REV), |
| .SEGBITS = 40, |
| .PABITS = 36, |
| .insn_flags = CPU_MIPS64 | ASE_MIPS3D, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| /* A generic CPU providing MIPS64 Release 2 features. |
| FIXME: Eventually this should be replaced by a real CPU model. */ |
| .name = "MIPS64R2-generic", |
| .CP0_PRid = 0x00010000, |
| .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | (0x2 << CP0C0_AT) | |
| (MMU_TYPE_R4000 << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (63 << CP0C1_MMU) | |
| (2 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) | |
| (2 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) | |
| (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3 | (1 << CP0C3_LPA), |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 0, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x36FBFFFF, |
| .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_3D) | (1 << FCR0_PS) | |
| (1 << FCR0_L) | (1 << FCR0_W) | (1 << FCR0_D) | |
| (1 << FCR0_S) | (0x00 << FCR0_PRID) | (0x0 << FCR0_REV), |
| .SEGBITS = 42, |
| /* The architectural limit is 59, but we have hardcoded 36 bit |
| in some places... |
| .PABITS = 59, */ /* the architectural limit */ |
| .PABITS = 36, |
| .insn_flags = CPU_MIPS64R2 | ASE_MIPS3D, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| /* A generic CPU supporting MIPS64 Release 6 ISA. |
| FIXME: Support IEEE 754-2008 FP and misaligned memory accesses. |
| Eventually this should be replaced by a real CPU model. */ |
| .name = "MIPS64R6-generic", |
| .CP0_PRid = 0x00010000, |
| .CP0_Config0 = MIPS_CONFIG0 | (0x2 << CP0C0_AR) | (0x2 << CP0C0_AT) | |
| (MMU_TYPE_R4000 << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (63 << CP0C1_MMU) | |
| (2 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) | |
| (2 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) | |
| (0 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3 | (1 << CP0C3_RXI) | (1 << CP0C3_BP) | |
| (1 << CP0C3_BI) | (1 << CP0C3_ULRI) | (1U << CP0C3_M), |
| .CP0_Config4 = MIPS_CONFIG4 | (0xfc << CP0C4_KScrExist) | |
| (3 << CP0C4_IE) | (1 << CP0C4_M), |
| .CP0_Config5_rw_bitmask = (1 << CP0C5_SBRI), |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 0, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x30D8FFFF, |
| .CP0_PageGrain = (1 << CP0PG_IEC) | (1 << CP0PG_XIE) | |
| (1U << CP0PG_RIE), |
| .CP0_PageGrain_rw_bitmask = 0, |
| .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_L) | (1 << FCR0_W) | |
| (1 << FCR0_D) | (1 << FCR0_S) | (0x00 << FCR0_PRID) | |
| (0x0 << FCR0_REV), |
| .SEGBITS = 42, |
| /* The architectural limit is 59, but we have hardcoded 36 bit |
| in some places... |
| .PABITS = 59, */ /* the architectural limit */ |
| .PABITS = 36, |
| .insn_flags = CPU_MIPS64R6, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| .name = "Loongson-2E", |
| .CP0_PRid = 0x6302, |
| /*64KB I-cache and d-cache. 4 way with 32 bit cache line size*/ |
| .CP0_Config0 = (0x1<<17) | (0x1<<16) | (0x1<<11) | (0x1<<8) | (0x1<<5) | |
| (0x1<<4) | (0x1<<1), |
| /* Note: Config1 is only used internally, Loongson-2E has only Config0. */ |
| .CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU), |
| .SYNCI_Step = 16, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x35D0FFFF, |
| .CP1_fcr0 = (0x5 << FCR0_PRID) | (0x1 << FCR0_REV), |
| .SEGBITS = 40, |
| .PABITS = 40, |
| .insn_flags = CPU_LOONGSON2E, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| .name = "Loongson-2F", |
| .CP0_PRid = 0x6303, |
| /*64KB I-cache and d-cache. 4 way with 32 bit cache line size*/ |
| .CP0_Config0 = (0x1<<17) | (0x1<<16) | (0x1<<11) | (0x1<<8) | (0x1<<5) | |
| (0x1<<4) | (0x1<<1), |
| /* Note: Config1 is only used internally, Loongson-2F has only Config0. */ |
| .CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU), |
| .SYNCI_Step = 16, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0xF5D0FF1F, /*bit5:7 not writable*/ |
| .CP1_fcr0 = (0x5 << FCR0_PRID) | (0x1 << FCR0_REV), |
| .SEGBITS = 40, |
| .PABITS = 40, |
| .insn_flags = CPU_LOONGSON2F, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| { |
| /* A generic CPU providing MIPS64 ASE DSP 2 features. |
| FIXME: Eventually this should be replaced by a real CPU model. */ |
| .name = "mips64dspr2", |
| .CP0_PRid = 0x00010000, |
| .CP0_Config0 = MIPS_CONFIG0 | (0x1 << CP0C0_AR) | (0x2 << CP0C0_AT) | |
| (MMU_TYPE_R4000 << CP0C0_MT), |
| .CP0_Config1 = MIPS_CONFIG1 | (1 << CP0C1_FP) | (63 << CP0C1_MMU) | |
| (2 << CP0C1_IS) | (4 << CP0C1_IL) | (3 << CP0C1_IA) | |
| (2 << CP0C1_DS) | (4 << CP0C1_DL) | (3 << CP0C1_DA) | |
| (1 << CP0C1_PC) | (1 << CP0C1_WR) | (1 << CP0C1_EP), |
| .CP0_Config2 = MIPS_CONFIG2, |
| .CP0_Config3 = MIPS_CONFIG3 | (1U << CP0C3_M) | (1 << CP0C3_DSP2P) | |
| (1 << CP0C3_DSPP) | (1 << CP0C3_LPA), |
| .CP0_LLAddr_rw_bitmask = 0, |
| .CP0_LLAddr_shift = 0, |
| .SYNCI_Step = 32, |
| .CCRes = 2, |
| .CP0_Status_rw_bitmask = 0x37FBFFFF, |
| .CP1_fcr0 = (1 << FCR0_F64) | (1 << FCR0_3D) | (1 << FCR0_PS) | |
| (1 << FCR0_L) | (1 << FCR0_W) | (1 << FCR0_D) | |
| (1 << FCR0_S) | (0x00 << FCR0_PRID) | (0x0 << FCR0_REV), |
| .SEGBITS = 42, |
| /* The architectural limit is 59, but we have hardcoded 36 bit |
| in some places... |
| .PABITS = 59, */ /* the architectural limit */ |
| .PABITS = 36, |
| .insn_flags = CPU_MIPS64R2 | ASE_DSP | ASE_DSPR2, |
| .mmu_type = MMU_TYPE_R4000, |
| }, |
| |
| #endif |
| }; |
| |
| static const mips_def_t *cpu_mips_find_by_name (const char *name) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(mips_defs); i++) { |
| if (strcasecmp(name, mips_defs[i].name) == 0) { |
| return &mips_defs[i]; |
| } |
| } |
| return NULL; |
| } |
| |
| void mips_cpu_list (FILE *f, fprintf_function cpu_fprintf) |
| { |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(mips_defs); i++) { |
| (*cpu_fprintf)(f, "MIPS '%s'\n", |
| mips_defs[i].name); |
| } |
| } |
| |
| #ifndef CONFIG_USER_ONLY |
| static void no_mmu_init (CPUMIPSState *env, const mips_def_t *def) |
| { |
| env->tlb->nb_tlb = 1; |
| env->tlb->map_address = &no_mmu_map_address; |
| } |
| |
| static void fixed_mmu_init (CPUMIPSState *env, const mips_def_t *def) |
| { |
| env->tlb->nb_tlb = 1; |
| env->tlb->map_address = &fixed_mmu_map_address; |
| } |
| |
| static void r4k_mmu_init (CPUMIPSState *env, const mips_def_t *def) |
| { |
| env->tlb->nb_tlb = 1 + ((def->CP0_Config1 >> CP0C1_MMU) & 63); |
| env->tlb->map_address = &r4k_map_address; |
| env->tlb->helper_tlbwi = r4k_helper_tlbwi; |
| env->tlb->helper_tlbwr = r4k_helper_tlbwr; |
| env->tlb->helper_tlbp = r4k_helper_tlbp; |
| env->tlb->helper_tlbr = r4k_helper_tlbr; |
| env->tlb->helper_tlbinv = r4k_helper_tlbinv; |
| env->tlb->helper_tlbinvf = r4k_helper_tlbinvf; |
| } |
| |
| static void mmu_init (CPUMIPSState *env, const mips_def_t *def) |
| { |
| MIPSCPU *cpu = mips_env_get_cpu(env); |
| |
| env->tlb = g_malloc0(sizeof(CPUMIPSTLBContext)); |
| |
| switch (def->mmu_type) { |
| case MMU_TYPE_NONE: |
| no_mmu_init(env, def); |
| break; |
| case MMU_TYPE_R4000: |
| r4k_mmu_init(env, def); |
| break; |
| case MMU_TYPE_FMT: |
| fixed_mmu_init(env, def); |
| break; |
| case MMU_TYPE_R3000: |
| case MMU_TYPE_R6000: |
| case MMU_TYPE_R8000: |
| default: |
| cpu_abort(CPU(cpu), "MMU type not supported\n"); |
| } |
| } |
| #endif /* CONFIG_USER_ONLY */ |
| |
| static void fpu_init (CPUMIPSState *env, const mips_def_t *def) |
| { |
| int i; |
| |
| for (i = 0; i < MIPS_FPU_MAX; i++) |
| env->fpus[i].fcr0 = def->CP1_fcr0; |
| |
| memcpy(&env->active_fpu, &env->fpus[0], sizeof(env->active_fpu)); |
| } |
| |
| static void mvp_init (CPUMIPSState *env, const mips_def_t *def) |
| { |
| env->mvp = g_malloc0(sizeof(CPUMIPSMVPContext)); |
| |
| /* MVPConf1 implemented, TLB sharable, no gating storage support, |
| programmable cache partitioning implemented, number of allocatable |
| and sharable TLB entries, MVP has allocatable TCs, 2 VPEs |
| implemented, 5 TCs implemented. */ |
| env->mvp->CP0_MVPConf0 = (1U << CP0MVPC0_M) | (1 << CP0MVPC0_TLBS) | |
| (0 << CP0MVPC0_GS) | (1 << CP0MVPC0_PCP) | |
| // TODO: actually do 2 VPEs. |
| // (1 << CP0MVPC0_TCA) | (0x1 << CP0MVPC0_PVPE) | |
| // (0x04 << CP0MVPC0_PTC); |
| (1 << CP0MVPC0_TCA) | (0x0 << CP0MVPC0_PVPE) | |
| (0x00 << CP0MVPC0_PTC); |
| #if !defined(CONFIG_USER_ONLY) |
| /* Usermode has no TLB support */ |
| env->mvp->CP0_MVPConf0 |= (env->tlb->nb_tlb << CP0MVPC0_PTLBE); |
| #endif |
| |
| /* Allocatable CP1 have media extensions, allocatable CP1 have FP support, |
| no UDI implemented, no CP2 implemented, 1 CP1 implemented. */ |
| env->mvp->CP0_MVPConf1 = (1U << CP0MVPC1_CIM) | (1 << CP0MVPC1_CIF) | |
| (0x0 << CP0MVPC1_PCX) | (0x0 << CP0MVPC1_PCP2) | |
| (0x1 << CP0MVPC1_PCP1); |
| } |
| |
| static void msa_reset(CPUMIPSState *env) |
| { |
| #ifdef CONFIG_USER_ONLY |
| /* MSA access enabled */ |
| env->CP0_Config5 |= 1 << CP0C5_MSAEn; |
| env->CP0_Status |= (1 << CP0St_CU1) | (1 << CP0St_FR); |
| #endif |
| |
| /* MSA CSR: |
| - non-signaling floating point exception mode off (NX bit is 0) |
| - Cause, Enables, and Flags are all 0 |
| - round to nearest / ties to even (RM bits are 0) */ |
| env->active_tc.msacsr = 0; |
| |
| /* tininess detected after rounding.*/ |
| set_float_detect_tininess(float_tininess_after_rounding, |
| &env->active_tc.msa_fp_status); |
| |
| /* clear float_status exception flags */ |
| set_float_exception_flags(0, &env->active_tc.msa_fp_status); |
| |
| /* set float_status rounding mode */ |
| set_float_rounding_mode(float_round_nearest_even, |
| &env->active_tc.msa_fp_status); |
| |
| /* set float_status flush modes */ |
| set_flush_to_zero(0, &env->active_tc.msa_fp_status); |
| set_flush_inputs_to_zero(0, &env->active_tc.msa_fp_status); |
| |
| /* clear float_status nan mode */ |
| set_default_nan_mode(0, &env->active_tc.msa_fp_status); |
| } |
