diff options
Diffstat (limited to 'target-mips/cpu.h')
| -rw-r--r-- | target-mips/cpu.h | 171 |
1 files changed, 43 insertions, 128 deletions
diff --git a/target-mips/cpu.h b/target-mips/cpu.h index 53e826223f..4ce9d47661 100644 --- a/target-mips/cpu.h +++ b/target-mips/cpu.h @@ -8,6 +8,7 @@ #define CPUArchState struct CPUMIPSState #include "qemu-common.h" +#include "cpu-qom.h" #include "mips-defs.h" #include "exec/cpu-defs.h" #include "fpu/softfloat.h" @@ -615,7 +616,42 @@ struct CPUMIPSState { MemoryRegion *itc_tag; /* ITC Configuration Tags */ }; -#include "cpu-qom.h" +/** + * MIPSCPU: + * @env: #CPUMIPSState + * + * A MIPS CPU. + */ +struct MIPSCPU { + /*< private >*/ + CPUState parent_obj; + /*< public >*/ + + CPUMIPSState env; +}; + +static inline MIPSCPU *mips_env_get_cpu(CPUMIPSState *env) +{ + return container_of(env, MIPSCPU, env); +} + +#define ENV_GET_CPU(e) CPU(mips_env_get_cpu(e)) + +#define ENV_OFFSET offsetof(MIPSCPU, env) + +#ifndef CONFIG_USER_ONLY +extern const struct VMStateDescription vmstate_mips_cpu; +#endif + +void mips_cpu_do_interrupt(CPUState *cpu); +bool mips_cpu_exec_interrupt(CPUState *cpu, int int_req); +void mips_cpu_dump_state(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf, + int flags); +hwaddr mips_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); +int mips_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg); +int mips_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); +void mips_cpu_do_unaligned_access(CPUState *cpu, vaddr addr, + int is_write, int is_user, uintptr_t retaddr); #if !defined(CONFIG_USER_ONLY) int no_mmu_map_address (CPUMIPSState *env, hwaddr *physical, int *prot, @@ -898,8 +934,6 @@ static inline int mips_vp_active(CPUMIPSState *env) return 1; } -#include "exec/exec-all.h" - static inline void compute_hflags(CPUMIPSState *env) { env->hflags &= ~(MIPS_HFLAG_COP1X | MIPS_HFLAG_64 | MIPS_HFLAG_CP0 | @@ -999,132 +1033,13 @@ static inline void compute_hflags(CPUMIPSState *env) } } -#ifndef CONFIG_USER_ONLY -static inline void cpu_mips_tlb_flush(CPUMIPSState *env, int flush_global) -{ - MIPSCPU *cpu = mips_env_get_cpu(env); - - /* Flush qemu's TLB and discard all shadowed entries. */ - tlb_flush(CPU(cpu), flush_global); - env->tlb->tlb_in_use = env->tlb->nb_tlb; -} - -/* Called for updates to CP0_Status. */ -static inline void sync_c0_status(CPUMIPSState *env, CPUMIPSState *cpu, int tc) -{ - int32_t tcstatus, *tcst; - uint32_t v = cpu->CP0_Status; - uint32_t cu, mx, asid, ksu; - uint32_t mask = ((1 << CP0TCSt_TCU3) - | (1 << CP0TCSt_TCU2) - | (1 << CP0TCSt_TCU1) - | (1 << CP0TCSt_TCU0) - | (1 << CP0TCSt_TMX) - | (3 << CP0TCSt_TKSU) - | (0xff << CP0TCSt_TASID)); - - cu = (v >> CP0St_CU0) & 0xf; - mx = (v >> CP0St_MX) & 0x1; - ksu = (v >> CP0St_KSU) & 0x3; - asid = env->CP0_EntryHi & 0xff; - - tcstatus = cu << CP0TCSt_TCU0; - tcstatus |= mx << CP0TCSt_TMX; - tcstatus |= ksu << CP0TCSt_TKSU; - tcstatus |= asid; - - if (tc == cpu->current_tc) { - tcst = &cpu->active_tc.CP0_TCStatus; - } else { - tcst = &cpu->tcs[tc].CP0_TCStatus; - } +void cpu_mips_tlb_flush(CPUMIPSState *env, int flush_global); +void sync_c0_status(CPUMIPSState *env, CPUMIPSState *cpu, int tc); +void cpu_mips_store_status(CPUMIPSState *env, target_ulong val); +void cpu_mips_store_cause(CPUMIPSState *env, target_ulong val); - *tcst &= ~mask; - *tcst |= tcstatus; - compute_hflags(cpu); -} - -static inline void cpu_mips_store_status(CPUMIPSState *env, target_ulong val) -{ - uint32_t mask = env->CP0_Status_rw_bitmask; - target_ulong old = env->CP0_Status; - - if (env->insn_flags & ISA_MIPS32R6) { - bool has_supervisor = extract32(mask, CP0St_KSU, 2) == 0x3; -#if defined(TARGET_MIPS64) - uint32_t ksux = (1 << CP0St_KX) & val; - ksux |= (ksux >> 1) & val; /* KX = 0 forces SX to be 0 */ - ksux |= (ksux >> 1) & val; /* SX = 0 forces UX to be 0 */ - val = (val & ~(7 << CP0St_UX)) | ksux; -#endif - if (has_supervisor && extract32(val, CP0St_KSU, 2) == 0x3) { - mask &= ~(3 << CP0St_KSU); - } - mask &= ~(((1 << CP0St_SR) | (1 << CP0St_NMI)) & val); - } - - env->CP0_Status = (old & ~mask) | (val & mask); -#if defined(TARGET_MIPS64) - if ((env->CP0_Status ^ old) & (old & (7 << CP0St_UX))) { - /* Access to at least one of the 64-bit segments has been disabled */ - cpu_mips_tlb_flush(env, 1); - } -#endif - if (env->CP0_Config3 & (1 << CP0C3_MT)) { - sync_c0_status(env, env, env->current_tc); - } else { - compute_hflags(env); - } -} - -static inline void cpu_mips_store_cause(CPUMIPSState *env, target_ulong val) -{ - uint32_t mask = 0x00C00300; - uint32_t old = env->CP0_Cause; - int i; - - if (env->insn_flags & ISA_MIPS32R2) { - mask |= 1 << CP0Ca_DC; - } - if (env->insn_flags & ISA_MIPS32R6) { - mask &= ~((1 << CP0Ca_WP) & val); - } - - env->CP0_Cause = (env->CP0_Cause & ~mask) | (val & mask); - - if ((old ^ env->CP0_Cause) & (1 << CP0Ca_DC)) { - if (env->CP0_Cause & (1 << CP0Ca_DC)) { - cpu_mips_stop_count(env); - } else { - cpu_mips_start_count(env); - } - } - - /* Set/reset software interrupts */ - for (i = 0 ; i < 2 ; i++) { - if ((old ^ env->CP0_Cause) & (1 << (CP0Ca_IP + i))) { - cpu_mips_soft_irq(env, i, env->CP0_Cause & (1 << (CP0Ca_IP + i))); - } - } -} -#endif - -static inline void QEMU_NORETURN do_raise_exception_err(CPUMIPSState *env, - uint32_t exception, - int error_code, - uintptr_t pc) -{ - CPUState *cs = CPU(mips_env_get_cpu(env)); - - if (exception < EXCP_SC) { - qemu_log_mask(CPU_LOG_INT, "%s: %d %d\n", - __func__, exception, error_code); - } - cs->exception_index = exception; - env->error_code = error_code; - - cpu_loop_exit_restore(cs, pc); -} +void QEMU_NORETURN do_raise_exception_err(CPUMIPSState *env, uint32_t exception, + int error_code, uintptr_t pc); static inline void QEMU_NORETURN do_raise_exception(CPUMIPSState *env, uint32_t exception, |