| /* |
| * TriCore emulation for qemu: main CPU struct. |
| * |
| * Copyright (c) 2012-2014 Bastian Koppelmann C-Lab/University Paderborn |
| * |
| * 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/>. |
| */ |
| |
| #ifndef TRICORE_CPU_H |
| #define TRICORE_CPU_H |
| |
| #include "tricore-defs.h" |
| #include "qemu-common.h" |
| #include "cpu-qom.h" |
| #include "exec/cpu-defs.h" |
| #include "fpu/softfloat.h" |
| |
| #define CPUArchState struct CPUTriCoreState |
| |
| struct CPUTriCoreState; |
| |
| struct tricore_boot_info; |
| |
| #define NB_MMU_MODES 3 |
| |
| typedef struct tricore_def_t tricore_def_t; |
| |
| typedef struct CPUTriCoreState CPUTriCoreState; |
| struct CPUTriCoreState { |
| /* GPR Register */ |
| uint32_t gpr_a[16]; |
| uint32_t gpr_d[16]; |
| /* CSFR Register */ |
| uint32_t PCXI; |
| /* Frequently accessed PSW_USB bits are stored separately for efficiency. |
| This contains all the other bits. Use psw_{read,write} to access |
| the whole PSW. */ |
| uint32_t PSW; |
| |
| /* PSW flag cache for faster execution |
| */ |
| uint32_t PSW_USB_C; |
| uint32_t PSW_USB_V; /* Only if bit 31 set, then flag is set */ |
| uint32_t PSW_USB_SV; /* Only if bit 31 set, then flag is set */ |
| uint32_t PSW_USB_AV; /* Only if bit 31 set, then flag is set. */ |
| uint32_t PSW_USB_SAV; /* Only if bit 31 set, then flag is set. */ |
| |
| uint32_t PC; |
| uint32_t SYSCON; |
| uint32_t CPU_ID; |
| uint32_t BIV; |
| uint32_t BTV; |
| uint32_t ISP; |
| uint32_t ICR; |
| uint32_t FCX; |
| uint32_t LCX; |
| uint32_t COMPAT; |
| |
| /* Mem Protection Register */ |
| uint32_t DPR0_0L; |
| uint32_t DPR0_0U; |
| uint32_t DPR0_1L; |
| uint32_t DPR0_1U; |
| uint32_t DPR0_2L; |
| uint32_t DPR0_2U; |
| uint32_t DPR0_3L; |
| uint32_t DPR0_3U; |
| |
| uint32_t DPR1_0L; |
| uint32_t DPR1_0U; |
| uint32_t DPR1_1L; |
| uint32_t DPR1_1U; |
| uint32_t DPR1_2L; |
| uint32_t DPR1_2U; |
| uint32_t DPR1_3L; |
| uint32_t DPR1_3U; |
| |
| uint32_t DPR2_0L; |
| uint32_t DPR2_0U; |
| uint32_t DPR2_1L; |
| uint32_t DPR2_1U; |
| uint32_t DPR2_2L; |
| uint32_t DPR2_2U; |
| uint32_t DPR2_3L; |
| uint32_t DPR2_3U; |
| |
| uint32_t DPR3_0L; |
| uint32_t DPR3_0U; |
| uint32_t DPR3_1L; |
| uint32_t DPR3_1U; |
| uint32_t DPR3_2L; |
| uint32_t DPR3_2U; |
| uint32_t DPR3_3L; |
| uint32_t DPR3_3U; |
| |
| uint32_t CPR0_0L; |
| uint32_t CPR0_0U; |
| uint32_t CPR0_1L; |
| uint32_t CPR0_1U; |
| uint32_t CPR0_2L; |
| uint32_t CPR0_2U; |
| uint32_t CPR0_3L; |
| uint32_t CPR0_3U; |
| |
| uint32_t CPR1_0L; |
| uint32_t CPR1_0U; |
| uint32_t CPR1_1L; |
| uint32_t CPR1_1U; |
| uint32_t CPR1_2L; |
| uint32_t CPR1_2U; |
| uint32_t CPR1_3L; |
| uint32_t CPR1_3U; |
| |
| uint32_t CPR2_0L; |
| uint32_t CPR2_0U; |
| uint32_t CPR2_1L; |
| uint32_t CPR2_1U; |
| uint32_t CPR2_2L; |
| uint32_t CPR2_2U; |
| uint32_t CPR2_3L; |
| uint32_t CPR2_3U; |
| |
| uint32_t CPR3_0L; |
| uint32_t CPR3_0U; |
| uint32_t CPR3_1L; |
| uint32_t CPR3_1U; |
| uint32_t CPR3_2L; |
| uint32_t CPR3_2U; |
| uint32_t CPR3_3L; |
| uint32_t CPR3_3U; |
| |
| uint32_t DPM0; |
| uint32_t DPM1; |
| uint32_t DPM2; |
| uint32_t DPM3; |
| |
| uint32_t CPM0; |
| uint32_t CPM1; |
| uint32_t CPM2; |
| uint32_t CPM3; |
| |
| /* Memory Management Registers */ |
| uint32_t MMU_CON; |
| uint32_t MMU_ASI; |
| uint32_t MMU_TVA; |
| uint32_t MMU_TPA; |
| uint32_t MMU_TPX; |
| uint32_t MMU_TFA; |
| /* {1.3.1 only */ |
| uint32_t BMACON; |
| uint32_t SMACON; |
| uint32_t DIEAR; |
| uint32_t DIETR; |
| uint32_t CCDIER; |
| uint32_t MIECON; |
| uint32_t PIEAR; |
| uint32_t PIETR; |
| uint32_t CCPIER; |
| /*} */ |
| /* Debug Registers */ |
| uint32_t DBGSR; |
| uint32_t EXEVT; |
| uint32_t CREVT; |
| uint32_t SWEVT; |
| uint32_t TR0EVT; |
| uint32_t TR1EVT; |
| uint32_t DMS; |
| uint32_t DCX; |
| uint32_t DBGTCR; |
| uint32_t CCTRL; |
| uint32_t CCNT; |
| uint32_t ICNT; |
| uint32_t M1CNT; |
| uint32_t M2CNT; |
| uint32_t M3CNT; |
| /* Floating Point Registers */ |
| float_status fp_status; |
| /* QEMU */ |
| int error_code; |
| uint32_t hflags; /* CPU State */ |
| |
| CPU_COMMON |
| |
| /* Internal CPU feature flags. */ |
| uint64_t features; |
| |
| const tricore_def_t *cpu_model; |
| void *irq[8]; |
| struct QEMUTimer *timer; /* Internal timer */ |
| }; |
| |
| /** |
| * TriCoreCPU: |
| * @env: #CPUTriCoreState |
| * |
| * A TriCore CPU. |
| */ |
| struct TriCoreCPU { |
| /*< private >*/ |
| CPUState parent_obj; |
| /*< public >*/ |
| |
| CPUTriCoreState env; |
| }; |
| |
| static inline TriCoreCPU *tricore_env_get_cpu(CPUTriCoreState *env) |
| { |
| return TRICORE_CPU(container_of(env, TriCoreCPU, env)); |
| } |
| |
| #define ENV_GET_CPU(e) CPU(tricore_env_get_cpu(e)) |
| |
| #define ENV_OFFSET offsetof(TriCoreCPU, env) |
| |
| hwaddr tricore_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); |
| void tricore_cpu_dump_state(CPUState *cpu, FILE *f, |
| fprintf_function cpu_fprintf, int flags); |
| |
| |
| #define MASK_PCXI_PCPN 0xff000000 |
| #define MASK_PCXI_PIE 0x00800000 |
| #define MASK_PCXI_UL 0x00400000 |
| #define MASK_PCXI_PCXS 0x000f0000 |
| #define MASK_PCXI_PCXO 0x0000ffff |
| |
| #define MASK_PSW_USB 0xff000000 |
| #define MASK_USB_C 0x80000000 |
| #define MASK_USB_V 0x40000000 |
| #define MASK_USB_SV 0x20000000 |
| #define MASK_USB_AV 0x10000000 |
| #define MASK_USB_SAV 0x08000000 |
| #define MASK_PSW_PRS 0x00003000 |
| #define MASK_PSW_IO 0x00000c00 |
| #define MASK_PSW_IS 0x00000200 |
| #define MASK_PSW_GW 0x00000100 |
| #define MASK_PSW_CDE 0x00000080 |
| #define MASK_PSW_CDC 0x0000007f |
| #define MASK_PSW_FPU_RM 0x3000000 |
| |
| #define MASK_SYSCON_PRO_TEN 0x2 |
| #define MASK_SYSCON_FCD_SF 0x1 |
| |
| #define MASK_CPUID_MOD 0xffff0000 |
| #define MASK_CPUID_MOD_32B 0x0000ff00 |
| #define MASK_CPUID_REV 0x000000ff |
| |
| #define MASK_ICR_PIPN 0x00ff0000 |
| #define MASK_ICR_IE 0x00000100 |
| #define MASK_ICR_CCPN 0x000000ff |
| |
| #define MASK_FCX_FCXS 0x000f0000 |
| #define MASK_FCX_FCXO 0x0000ffff |
| |
| #define MASK_LCX_LCXS 0x000f0000 |
| #define MASK_LCX_LCX0 0x0000ffff |
| |
| #define MASK_DBGSR_DE 0x1 |
| #define MASK_DBGSR_HALT 0x6 |
| #define MASK_DBGSR_SUSP 0x10 |
| #define MASK_DBGSR_PREVSUSP 0x20 |
| #define MASK_DBGSR_PEVT 0x40 |
| #define MASK_DBGSR_EVTSRC 0x1f00 |
| |
| #define TRICORE_HFLAG_KUU 0x3 |
| #define TRICORE_HFLAG_UM0 0x00002 /* user mode-0 flag */ |
| #define TRICORE_HFLAG_UM1 0x00001 /* user mode-1 flag */ |
| #define TRICORE_HFLAG_SM 0x00000 /* kernel mode flag */ |
| |
| enum tricore_features { |
| TRICORE_FEATURE_13, |
| TRICORE_FEATURE_131, |
| TRICORE_FEATURE_16, |
| TRICORE_FEATURE_161, |
| }; |
| |
| static inline int tricore_feature(CPUTriCoreState *env, int feature) |
| { |
| return (env->features & (1ULL << feature)) != 0; |
| } |
| |
| /* TriCore Traps Classes*/ |
| enum { |
| TRAPC_NONE = -1, |
| TRAPC_MMU = 0, |
| TRAPC_PROT = 1, |
| TRAPC_INSN_ERR = 2, |
| TRAPC_CTX_MNG = 3, |
| TRAPC_SYSBUS = 4, |
| TRAPC_ASSERT = 5, |
| TRAPC_SYSCALL = 6, |
| TRAPC_NMI = 7, |
| TRAPC_IRQ = 8 |
| }; |
| |
| /* Class 0 TIN */ |
| enum { |
| TIN0_VAF = 0, |
| TIN0_VAP = 1, |
| }; |
| |
| /* Class 1 TIN */ |
| enum { |
| TIN1_PRIV = 1, |
| TIN1_MPR = 2, |
| TIN1_MPW = 3, |
| TIN1_MPX = 4, |
| TIN1_MPP = 5, |
| TIN1_MPN = 6, |
| TIN1_GRWP = 7, |
| }; |
| |
| /* Class 2 TIN */ |
| enum { |
| TIN2_IOPC = 1, |
| TIN2_UOPC = 2, |
| TIN2_OPD = 3, |
| TIN2_ALN = 4, |
| TIN2_MEM = 5, |
| }; |
| |
| /* Class 3 TIN */ |
| enum { |
| TIN3_FCD = 1, |
| TIN3_CDO = 2, |
| TIN3_CDU = 3, |
| TIN3_FCU = 4, |
| TIN3_CSU = 5, |
| TIN3_CTYP = 6, |
| TIN3_NEST = 7, |
| }; |
| |
| /* Class 4 TIN */ |
| enum { |
| TIN4_PSE = 1, |
| TIN4_DSE = 2, |
| TIN4_DAE = 3, |
| TIN4_CAE = 4, |
| TIN4_PIE = 5, |
| TIN4_DIE = 6, |
| }; |
| |
| /* Class 5 TIN */ |
| enum { |
| TIN5_OVF = 1, |
| TIN5_SOVF = 1, |
| }; |
| |
| /* Class 6 TIN |
| * |
| * Is always TIN6_SYS |
| */ |
| |
| /* Class 7 TIN */ |
| enum { |
| TIN7_NMI = 0, |
| }; |
| |
| uint32_t psw_read(CPUTriCoreState *env); |
| void psw_write(CPUTriCoreState *env, uint32_t val); |
| |
| void fpu_set_state(CPUTriCoreState *env); |
| |
| #define MMU_USER_IDX 2 |
| |
| void tricore_cpu_list(FILE *f, fprintf_function cpu_fprintf); |
| |
| #define cpu_signal_handler cpu_tricore_signal_handler |
| #define cpu_list tricore_cpu_list |
| |
| static inline int cpu_mmu_index(CPUTriCoreState *env, bool ifetch) |
| { |
| return 0; |
| } |
| |
| |
| |
| #include "exec/cpu-all.h" |
| |
| enum { |
| /* 1 bit to define user level / supervisor access */ |
| ACCESS_USER = 0x00, |
| ACCESS_SUPER = 0x01, |
| /* 1 bit to indicate direction */ |
| ACCESS_STORE = 0x02, |
| /* Type of instruction that generated the access */ |
| ACCESS_CODE = 0x10, /* Code fetch access */ |
| ACCESS_INT = 0x20, /* Integer load/store access */ |
| ACCESS_FLOAT = 0x30, /* floating point load/store access */ |
| }; |
| |
| void cpu_state_reset(CPUTriCoreState *s); |
| void tricore_tcg_init(void); |
| int cpu_tricore_signal_handler(int host_signum, void *pinfo, void *puc); |
| |
| static inline void cpu_get_tb_cpu_state(CPUTriCoreState *env, target_ulong *pc, |
| target_ulong *cs_base, uint32_t *flags) |
| { |
| *pc = env->PC; |
| *cs_base = 0; |
| *flags = 0; |
| } |
| |
| TriCoreCPU *cpu_tricore_init(const char *cpu_model); |
| |
| #define cpu_init(cpu_model) CPU(cpu_tricore_init(cpu_model)) |
| |
| |
| /* helpers.c */ |
| int cpu_tricore_handle_mmu_fault(CPUState *cpu, target_ulong address, |
| int rw, int mmu_idx); |
| #define cpu_handle_mmu_fault cpu_tricore_handle_mmu_fault |
| |
| #endif /* TRICORE_CPU_H */ |