diff options
author | Aleksandar Markovic <amarkovic@wavecomp.com> | 2019-10-23 12:23:34 +0200 |
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committer | Aleksandar Markovic <amarkovic@wavecomp.com> | 2019-10-25 18:37:01 +0200 |
commit | d7551ece3a8def55cc7e7438e72b1cc88970153a (patch) | |
tree | 4760006bcab5cebed32799f6b4afa500b7e19a2b /target/mips | |
parent | 03bf012e523ecdf047ac56b2057950247256064d (diff) | |
download | qemu-d7551ece3a8def55cc7e7438e72b1cc88970153a.zip qemu-d7551ece3a8def55cc7e7438e72b1cc88970153a.tar.gz qemu-d7551ece3a8def55cc7e7438e72b1cc88970153a.tar.bz2 |
target/mips: Clean up helper.c
Mostly fix errors and warnings reported by 'checkpatch.pl -f'.
Cc: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1571826227-10583-2-git-send-email-aleksandar.markovic@rt-rk.com>
Diffstat (limited to 'target/mips')
-rw-r--r-- | target/mips/helper.c | 123 |
1 files changed, 74 insertions, 49 deletions
diff --git a/target/mips/helper.c b/target/mips/helper.c index a2b6459..781930a 100644 --- a/target/mips/helper.c +++ b/target/mips/helper.c @@ -39,8 +39,8 @@ enum { #if !defined(CONFIG_USER_ONLY) /* no MMU emulation */ -int no_mmu_map_address (CPUMIPSState *env, hwaddr *physical, int *prot, - target_ulong address, int rw, int access_type) +int no_mmu_map_address(CPUMIPSState *env, hwaddr *physical, int *prot, + target_ulong address, int rw, int access_type) { *physical = address; *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC; @@ -48,26 +48,28 @@ int no_mmu_map_address (CPUMIPSState *env, hwaddr *physical, int *prot, } /* fixed mapping MMU emulation */ -int fixed_mmu_map_address (CPUMIPSState *env, hwaddr *physical, int *prot, - target_ulong address, int rw, int access_type) +int fixed_mmu_map_address(CPUMIPSState *env, hwaddr *physical, int *prot, + target_ulong address, int rw, int access_type) { if (address <= (int32_t)0x7FFFFFFFUL) { - if (!(env->CP0_Status & (1 << CP0St_ERL))) + if (!(env->CP0_Status & (1 << CP0St_ERL))) { *physical = address + 0x40000000UL; - else + } else { *physical = address; - } else if (address <= (int32_t)0xBFFFFFFFUL) + } + } else if (address <= (int32_t)0xBFFFFFFFUL) { *physical = address & 0x1FFFFFFF; - else + } else { *physical = address; + } *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC; return TLBRET_MATCH; } /* MIPS32/MIPS64 R4000-style MMU emulation */ -int r4k_map_address (CPUMIPSState *env, hwaddr *physical, int *prot, - target_ulong address, int rw, int access_type) +int r4k_map_address(CPUMIPSState *env, hwaddr *physical, int *prot, + target_ulong address, int rw, int access_type) { uint16_t ASID = env->CP0_EntryHi & env->CP0_EntryHi_ASID_mask; int i; @@ -99,8 +101,9 @@ int r4k_map_address (CPUMIPSState *env, hwaddr *physical, int *prot, if (rw != MMU_DATA_STORE || (n ? tlb->D1 : tlb->D0)) { *physical = tlb->PFN[n] | (address & (mask >> 1)); *prot = PAGE_READ; - if (n ? tlb->D1 : tlb->D0) + if (n ? tlb->D1 : tlb->D0) { *prot |= PAGE_WRITE; + } if (!(n ? tlb->XI1 : tlb->XI0)) { *prot |= PAGE_EXEC; } @@ -130,7 +133,7 @@ static int is_seg_am_mapped(unsigned int am, bool eu, int mmu_idx) int32_t adetlb_mask; switch (mmu_idx) { - case 3 /* ERL */: + case 3: /* ERL */ /* If EU is set, always unmapped */ if (eu) { return 0; @@ -204,7 +207,7 @@ static int get_segctl_physical_address(CPUMIPSState *env, hwaddr *physical, pa & ~(hwaddr)segmask); } -static int get_physical_address (CPUMIPSState *env, hwaddr *physical, +static int get_physical_address(CPUMIPSState *env, hwaddr *physical, int *prot, target_ulong real_address, int rw, int access_type, int mmu_idx) { @@ -252,14 +255,15 @@ static int get_physical_address (CPUMIPSState *env, hwaddr *physical, } else { segctl = env->CP0_SegCtl2 >> 16; } - ret = get_segctl_physical_address(env, physical, prot, real_address, rw, - access_type, mmu_idx, segctl, - 0x3FFFFFFF); + ret = get_segctl_physical_address(env, physical, prot, + real_address, rw, access_type, + mmu_idx, segctl, 0x3FFFFFFF); #if defined(TARGET_MIPS64) } else if (address < 0x4000000000000000ULL) { /* xuseg */ if (UX && address <= (0x3FFFFFFFFFFFFFFFULL & env->SEGMask)) { - ret = env->tlb->map_address(env, physical, prot, real_address, rw, access_type); + ret = env->tlb->map_address(env, physical, prot, + real_address, rw, access_type); } else { ret = TLBRET_BADADDR; } @@ -267,7 +271,8 @@ static int get_physical_address (CPUMIPSState *env, hwaddr *physical, /* xsseg */ if ((supervisor_mode || kernel_mode) && SX && address <= (0x7FFFFFFFFFFFFFFFULL & env->SEGMask)) { - ret = env->tlb->map_address(env, physical, prot, real_address, rw, access_type); + ret = env->tlb->map_address(env, physical, prot, + real_address, rw, access_type); } else { ret = TLBRET_BADADDR; } @@ -307,7 +312,8 @@ static int get_physical_address (CPUMIPSState *env, hwaddr *physical, /* xkseg */ if (kernel_mode && KX && address <= (0xFFFFFFFF7FFFFFFFULL & env->SEGMask)) { - ret = env->tlb->map_address(env, physical, prot, real_address, rw, access_type); + ret = env->tlb->map_address(env, physical, prot, + real_address, rw, access_type); } else { ret = TLBRET_BADADDR; } @@ -328,8 +334,10 @@ static int get_physical_address (CPUMIPSState *env, hwaddr *physical, access_type, mmu_idx, env->CP0_SegCtl0 >> 16, 0x1FFFFFFF); } else { - /* kseg3 */ - /* XXX: debug segment is not emulated */ + /* + * kseg3 + * XXX: debug segment is not emulated + */ ret = get_segctl_physical_address(env, physical, prot, real_address, rw, access_type, mmu_idx, env->CP0_SegCtl0, 0x1FFFFFFF); @@ -515,9 +523,9 @@ static void raise_mmu_exception(CPUMIPSState *env, target_ulong address, #if defined(TARGET_MIPS64) env->CP0_EntryHi &= env->SEGMask; env->CP0_XContext = - /* PTEBase */ (env->CP0_XContext & ((~0ULL) << (env->SEGBITS - 7))) | - /* R */ (extract64(address, 62, 2) << (env->SEGBITS - 9)) | - /* BadVPN2 */ (extract64(address, 13, env->SEGBITS - 13) << 4); + (env->CP0_XContext & ((~0ULL) << (env->SEGBITS - 7))) | /* PTEBase */ + (extract64(address, 62, 2) << (env->SEGBITS - 9)) | /* R */ + (extract64(address, 13, env->SEGBITS - 13) << 4); /* BadVPN2 */ #endif cs->exception_index = exception; env->error_code = error_code; @@ -945,7 +953,8 @@ bool mips_cpu_tlb_fill(CPUState *cs, vaddr address, int size, } #ifndef CONFIG_USER_ONLY -hwaddr cpu_mips_translate_address(CPUMIPSState *env, target_ulong address, int rw) +hwaddr cpu_mips_translate_address(CPUMIPSState *env, target_ulong address, + int rw) { hwaddr physical; int prot; @@ -1005,7 +1014,7 @@ static const char * const excp_names[EXCP_LAST + 1] = { }; #endif -target_ulong exception_resume_pc (CPUMIPSState *env) +target_ulong exception_resume_pc(CPUMIPSState *env) { target_ulong bad_pc; target_ulong isa_mode; @@ -1013,8 +1022,10 @@ target_ulong exception_resume_pc (CPUMIPSState *env) isa_mode = !!(env->hflags & MIPS_HFLAG_M16); bad_pc = env->active_tc.PC | isa_mode; if (env->hflags & MIPS_HFLAG_BMASK) { - /* If the exception was raised from a delay slot, come back to - the jump. */ + /* + * If the exception was raised from a delay slot, come back to + * the jump. + */ bad_pc -= (env->hflags & MIPS_HFLAG_B16 ? 2 : 4); } @@ -1022,14 +1033,14 @@ target_ulong exception_resume_pc (CPUMIPSState *env) } #if !defined(CONFIG_USER_ONLY) -static void set_hflags_for_handler (CPUMIPSState *env) +static void set_hflags_for_handler(CPUMIPSState *env) { /* Exception handlers are entered in 32-bit mode. */ env->hflags &= ~(MIPS_HFLAG_M16); /* ...except that microMIPS lets you choose. */ if (env->insn_flags & ASE_MICROMIPS) { - env->hflags |= (!!(env->CP0_Config3 - & (1 << CP0C3_ISA_ON_EXC)) + env->hflags |= (!!(env->CP0_Config3 & + (1 << CP0C3_ISA_ON_EXC)) << MIPS_HFLAG_M16_SHIFT); } } @@ -1096,10 +1107,12 @@ void mips_cpu_do_interrupt(CPUState *cs) switch (cs->exception_index) { case EXCP_DSS: env->CP0_Debug |= 1 << CP0DB_DSS; - /* Debug single step cannot be raised inside a delay slot and - resume will always occur on the next instruction - (but we assume the pc has always been updated during - code translation). */ + /* + * Debug single step cannot be raised inside a delay slot and + * resume will always occur on the next instruction + * (but we assume the pc has always been updated during + * code translation). + */ env->CP0_DEPC = env->active_tc.PC | !!(env->hflags & MIPS_HFLAG_M16); goto enter_debug_mode; case EXCP_DINT: @@ -1111,7 +1124,8 @@ void mips_cpu_do_interrupt(CPUState *cs) case EXCP_DBp: env->CP0_Debug |= 1 << CP0DB_DBp; /* Setup DExcCode - SDBBP instruction */ - env->CP0_Debug = (env->CP0_Debug & ~(0x1fULL << CP0DB_DEC)) | 9 << CP0DB_DEC; + env->CP0_Debug = (env->CP0_Debug & ~(0x1fULL << CP0DB_DEC)) | + (9 << CP0DB_DEC); goto set_DEPC; case EXCP_DDBS: env->CP0_Debug |= 1 << CP0DB_DDBS; @@ -1132,8 +1146,9 @@ void mips_cpu_do_interrupt(CPUState *cs) env->hflags |= MIPS_HFLAG_DM | MIPS_HFLAG_CP0; env->hflags &= ~(MIPS_HFLAG_KSU); /* EJTAG probe trap enable is not implemented... */ - if (!(env->CP0_Status & (1 << CP0St_EXL))) + if (!(env->CP0_Status & (1 << CP0St_EXL))) { env->CP0_Cause &= ~(1U << CP0Ca_BD); + } env->active_tc.PC = env->exception_base + 0x480; set_hflags_for_handler(env); break; @@ -1159,8 +1174,9 @@ void mips_cpu_do_interrupt(CPUState *cs) } env->hflags |= MIPS_HFLAG_CP0; env->hflags &= ~(MIPS_HFLAG_KSU); - if (!(env->CP0_Status & (1 << CP0St_EXL))) + if (!(env->CP0_Status & (1 << CP0St_EXL))) { env->CP0_Cause &= ~(1U << CP0Ca_BD); + } env->active_tc.PC = env->exception_base; set_hflags_for_handler(env); break; @@ -1176,12 +1192,16 @@ void mips_cpu_do_interrupt(CPUState *cs) uint32_t pending = (env->CP0_Cause & CP0Ca_IP_mask) >> CP0Ca_IP; if (env->CP0_Config3 & (1 << CP0C3_VEIC)) { - /* For VEIC mode, the external interrupt controller feeds - * the vector through the CP0Cause IP lines. */ + /* + * For VEIC mode, the external interrupt controller feeds + * the vector through the CP0Cause IP lines. + */ vector = pending; } else { - /* Vectored Interrupts - * Mask with Status.IM7-IM0 to get enabled interrupts. */ + /* + * Vectored Interrupts + * Mask with Status.IM7-IM0 to get enabled interrupts. + */ pending &= (env->CP0_Status >> CP0St_IM) & 0xff; /* Find the highest-priority interrupt. */ while (pending >>= 1) { @@ -1354,7 +1374,8 @@ void mips_cpu_do_interrupt(CPUState *cs) env->active_tc.PC += offset; set_hflags_for_handler(env); - env->CP0_Cause = (env->CP0_Cause & ~(0x1f << CP0Ca_EC)) | (cause << CP0Ca_EC); + env->CP0_Cause = (env->CP0_Cause & ~(0x1f << CP0Ca_EC)) | + (cause << CP0Ca_EC); break; default: abort(); @@ -1390,7 +1411,7 @@ bool mips_cpu_exec_interrupt(CPUState *cs, int interrupt_request) } #if !defined(CONFIG_USER_ONLY) -void r4k_invalidate_tlb (CPUMIPSState *env, int idx, int use_extra) +void r4k_invalidate_tlb(CPUMIPSState *env, int idx, int use_extra) { CPUState *cs = env_cpu(env); r4k_tlb_t *tlb; @@ -1400,16 +1421,20 @@ void r4k_invalidate_tlb (CPUMIPSState *env, int idx, int use_extra) target_ulong mask; tlb = &env->tlb->mmu.r4k.tlb[idx]; - /* The qemu TLB is flushed when the ASID changes, so no need to - flush these entries again. */ + /* + * The qemu TLB is flushed when the ASID changes, so no need to + * flush these entries again. + */ if (tlb->G == 0 && tlb->ASID != ASID) { return; } if (use_extra && env->tlb->tlb_in_use < MIPS_TLB_MAX) { - /* For tlbwr, we can shadow the discarded entry into - a new (fake) TLB entry, as long as the guest can not - tell that it's there. */ + /* + * For tlbwr, we can shadow the discarded entry into + * a new (fake) TLB entry, as long as the guest can not + * tell that it's there. + */ env->tlb->mmu.r4k.tlb[env->tlb->tlb_in_use] = *tlb; env->tlb->tlb_in_use++; return; |