/* * 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/>. */ #if !defined(__TRICORE_CPU_H__) #define __TRICORE_CPU_H__ #include "tricore-defs.h" #include "config.h" #include "qemu-common.h" #include "exec/cpu-defs.h" #include "fpu/softfloat.h" #define ELF_MACHINE EM_TRICORE #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 */ /* XXX: */ /* 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 */ }; #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_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 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, }; 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, }; /* 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); #include "cpu-qom.h" #define MMU_USER_IDX 2 void tricore_cpu_list(FILE *f, fprintf_function cpu_fprintf); #define cpu_exec cpu_tricore_exec #define cpu_signal_handler cpu_tricore_signal_handler #define cpu_list tricore_cpu_list static inline int cpu_mmu_index(CPUTriCoreState *env) { 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); int cpu_tricore_exec(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, int *flags) { *pc = env->PC; *cs_base = 0; *flags = 0; } TriCoreCPU *cpu_tricore_init(const char *cpu_model); static inline CPUTriCoreState *cpu_init(const char *cpu_model) { TriCoreCPU *cpu = cpu_tricore_init(cpu_model); if (cpu == NULL) { return NULL; } return &cpu->env; } /* 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 #include "exec/exec-all.h" static inline void cpu_pc_from_tb(CPUTriCoreState *env, TranslationBlock *tb) { env->PC = tb->pc; } #endif /*__TRICORE_CPU_H__ */