| /* |
| * UniCore32 virtual CPU header |
| * |
| * Copyright (C) 2010-2012 Guan Xuetao |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation, or (at your option) any |
| * later version. See the COPYING file in the top-level directory. |
| */ |
| |
| #ifndef UNICORE32_CPU_H |
| #define UNICORE32_CPU_H |
| |
| #define TARGET_LONG_BITS 32 |
| #define TARGET_PAGE_BITS 12 |
| |
| #define TARGET_PHYS_ADDR_SPACE_BITS 32 |
| #define TARGET_VIRT_ADDR_SPACE_BITS 32 |
| |
| #define CPUArchState struct CPUUniCore32State |
| |
| #include "qemu-common.h" |
| #include "cpu-qom.h" |
| #include "exec/cpu-defs.h" |
| |
| #define NB_MMU_MODES 2 |
| |
| typedef struct CPUUniCore32State { |
| /* Regs for current mode. */ |
| uint32_t regs[32]; |
| /* Frequently accessed ASR bits are stored separately for efficiently. |
| This contains all the other bits. Use asr_{read,write} to access |
| the whole ASR. */ |
| uint32_t uncached_asr; |
| uint32_t bsr; |
| |
| /* Banked registers. */ |
| uint32_t banked_bsr[6]; |
| uint32_t banked_r29[6]; |
| uint32_t banked_r30[6]; |
| |
| /* asr flag cache for faster execution */ |
| uint32_t CF; /* 0 or 1 */ |
| uint32_t VF; /* V is the bit 31. All other bits are undefined */ |
| uint32_t NF; /* N is bit 31. All other bits are undefined. */ |
| uint32_t ZF; /* Z set if zero. */ |
| |
| /* System control coprocessor (cp0) */ |
| struct { |
| uint32_t c0_cpuid; |
| uint32_t c0_cachetype; |
| uint32_t c1_sys; /* System control register. */ |
| uint32_t c2_base; /* MMU translation table base. */ |
| uint32_t c3_faultstatus; /* Fault status registers. */ |
| uint32_t c4_faultaddr; /* Fault address registers. */ |
| uint32_t c5_cacheop; /* Cache operation registers. */ |
| uint32_t c6_tlbop; /* TLB operation registers. */ |
| } cp0; |
| |
| /* UniCore-F64 coprocessor state. */ |
| struct { |
| float64 regs[16]; |
| uint32_t xregs[32]; |
| float_status fp_status; |
| } ucf64; |
| |
| CPU_COMMON |
| |
| /* Internal CPU feature flags. */ |
| uint32_t features; |
| |
| } CPUUniCore32State; |
| |
| /** |
| * UniCore32CPU: |
| * @env: #CPUUniCore32State |
| * |
| * A UniCore32 CPU. |
| */ |
| struct UniCore32CPU { |
| /*< private >*/ |
| CPUState parent_obj; |
| /*< public >*/ |
| |
| CPUUniCore32State env; |
| }; |
| |
| static inline UniCore32CPU *uc32_env_get_cpu(CPUUniCore32State *env) |
| { |
| return container_of(env, UniCore32CPU, env); |
| } |
| |
| #define ENV_GET_CPU(e) CPU(uc32_env_get_cpu(e)) |
| |
| #define ENV_OFFSET offsetof(UniCore32CPU, env) |
| |
| void uc32_cpu_do_interrupt(CPUState *cpu); |
| bool uc32_cpu_exec_interrupt(CPUState *cpu, int int_req); |
| void uc32_cpu_dump_state(CPUState *cpu, FILE *f, int flags); |
| hwaddr uc32_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); |
| |
| #define ASR_M (0x1f) |
| #define ASR_MODE_USER (0x10) |
| #define ASR_MODE_INTR (0x12) |
| #define ASR_MODE_PRIV (0x13) |
| #define ASR_MODE_TRAP (0x17) |
| #define ASR_MODE_EXTN (0x1b) |
| #define ASR_MODE_SUSR (0x1f) |
| #define ASR_I (1 << 7) |
| #define ASR_V (1 << 28) |
| #define ASR_C (1 << 29) |
| #define ASR_Z (1 << 30) |
| #define ASR_N (1 << 31) |
| #define ASR_NZCV (ASR_N | ASR_Z | ASR_C | ASR_V) |
| #define ASR_RESERVED (~(ASR_M | ASR_I | ASR_NZCV)) |
| |
| #define UC32_EXCP_PRIV (1) |
| #define UC32_EXCP_ITRAP (2) |
| #define UC32_EXCP_DTRAP (3) |
| #define UC32_EXCP_INTR (4) |
| |
| /* Return the current ASR value. */ |
| target_ulong cpu_asr_read(CPUUniCore32State *env1); |
| /* Set the ASR. Note that some bits of mask must be all-set or all-clear. */ |
| void cpu_asr_write(CPUUniCore32State *env1, target_ulong val, target_ulong mask); |
| |
| /* UniCore-F64 system registers. */ |
| #define UC32_UCF64_FPSCR (31) |
| #define UCF64_FPSCR_MASK (0x27ffffff) |
| #define UCF64_FPSCR_RND_MASK (0x7) |
| #define UCF64_FPSCR_RND(r) (((r) >> 0) & UCF64_FPSCR_RND_MASK) |
| #define UCF64_FPSCR_TRAPEN_MASK (0x7f) |
| #define UCF64_FPSCR_TRAPEN(r) (((r) >> 10) & UCF64_FPSCR_TRAPEN_MASK) |
| #define UCF64_FPSCR_FLAG_MASK (0x3ff) |
| #define UCF64_FPSCR_FLAG(r) (((r) >> 17) & UCF64_FPSCR_FLAG_MASK) |
| #define UCF64_FPSCR_FLAG_ZERO (1 << 17) |
| #define UCF64_FPSCR_FLAG_INFINITY (1 << 18) |
| #define UCF64_FPSCR_FLAG_INVALID (1 << 19) |
| #define UCF64_FPSCR_FLAG_UNDERFLOW (1 << 20) |
| #define UCF64_FPSCR_FLAG_OVERFLOW (1 << 21) |
| #define UCF64_FPSCR_FLAG_INEXACT (1 << 22) |
| #define UCF64_FPSCR_FLAG_HUGEINT (1 << 23) |
| #define UCF64_FPSCR_FLAG_DENORMAL (1 << 24) |
| #define UCF64_FPSCR_FLAG_UNIMP (1 << 25) |
| #define UCF64_FPSCR_FLAG_DIVZERO (1 << 26) |
| |
| #define UC32_HWCAP_CMOV 4 /* 1 << 2 */ |
| #define UC32_HWCAP_UCF64 8 /* 1 << 3 */ |
| |
| #define cpu_signal_handler uc32_cpu_signal_handler |
| |
| int uc32_cpu_signal_handler(int host_signum, void *pinfo, void *puc); |
| |
| /* MMU modes definitions */ |
| #define MMU_MODE0_SUFFIX _kernel |
| #define MMU_MODE1_SUFFIX _user |
| #define MMU_USER_IDX 1 |
| static inline int cpu_mmu_index(CPUUniCore32State *env, bool ifetch) |
| { |
| return (env->uncached_asr & ASR_M) == ASR_MODE_USER ? 1 : 0; |
| } |
| |
| #include "exec/cpu-all.h" |
| |
| #define UNICORE32_CPU_TYPE_SUFFIX "-" TYPE_UNICORE32_CPU |
| #define UNICORE32_CPU_TYPE_NAME(model) model UNICORE32_CPU_TYPE_SUFFIX |
| #define CPU_RESOLVING_TYPE TYPE_UNICORE32_CPU |
| |
| static inline void cpu_get_tb_cpu_state(CPUUniCore32State *env, target_ulong *pc, |
| target_ulong *cs_base, uint32_t *flags) |
| { |
| *pc = env->regs[31]; |
| *cs_base = 0; |
| *flags = 0; |
| if ((env->uncached_asr & ASR_M) != ASR_MODE_USER) { |
| *flags |= (1 << 6); |
| } |
| } |
| |
| bool uc32_cpu_tlb_fill(CPUState *cs, vaddr address, int size, |
| MMUAccessType access_type, int mmu_idx, |
| bool probe, uintptr_t retaddr); |
| void uc32_translate_init(void); |
| void switch_mode(CPUUniCore32State *, int); |
| |
| #endif /* UNICORE32_CPU_H */ |