mirror of https://gitee.com/openkylin/qemu.git
mips: move CP0 functions out of cpu.h
These are here for historical reasons: they are needed from both gdbstub.c and op_helper.c, and the latter was compiled with fixed AREG0. It is not needed anymore, so uninline them. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini
parent
27a7ea8a1f
commit
e6623d88f4
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@ -1035,115 +1035,10 @@ static inline void compute_hflags(CPUMIPSState *env)
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}
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}
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#ifndef CONFIG_USER_ONLY
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static inline void cpu_mips_tlb_flush(CPUMIPSState *env, int flush_global)
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{
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MIPSCPU *cpu = mips_env_get_cpu(env);
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/* Flush qemu's TLB and discard all shadowed entries. */
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tlb_flush(CPU(cpu), flush_global);
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env->tlb->tlb_in_use = env->tlb->nb_tlb;
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}
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/* Called for updates to CP0_Status. */
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static inline void sync_c0_status(CPUMIPSState *env, CPUMIPSState *cpu, int tc)
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{
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int32_t tcstatus, *tcst;
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uint32_t v = cpu->CP0_Status;
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uint32_t cu, mx, asid, ksu;
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uint32_t mask = ((1 << CP0TCSt_TCU3)
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| (1 << CP0TCSt_TCU2)
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| (1 << CP0TCSt_TCU1)
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| (1 << CP0TCSt_TCU0)
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| (1 << CP0TCSt_TMX)
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| (3 << CP0TCSt_TKSU)
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| (0xff << CP0TCSt_TASID));
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cu = (v >> CP0St_CU0) & 0xf;
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mx = (v >> CP0St_MX) & 0x1;
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ksu = (v >> CP0St_KSU) & 0x3;
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asid = env->CP0_EntryHi & 0xff;
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tcstatus = cu << CP0TCSt_TCU0;
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tcstatus |= mx << CP0TCSt_TMX;
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tcstatus |= ksu << CP0TCSt_TKSU;
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tcstatus |= asid;
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if (tc == cpu->current_tc) {
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tcst = &cpu->active_tc.CP0_TCStatus;
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} else {
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tcst = &cpu->tcs[tc].CP0_TCStatus;
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}
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*tcst &= ~mask;
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*tcst |= tcstatus;
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compute_hflags(cpu);
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}
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static inline void cpu_mips_store_status(CPUMIPSState *env, target_ulong val)
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{
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uint32_t mask = env->CP0_Status_rw_bitmask;
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target_ulong old = env->CP0_Status;
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if (env->insn_flags & ISA_MIPS32R6) {
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bool has_supervisor = extract32(mask, CP0St_KSU, 2) == 0x3;
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#if defined(TARGET_MIPS64)
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uint32_t ksux = (1 << CP0St_KX) & val;
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ksux |= (ksux >> 1) & val; /* KX = 0 forces SX to be 0 */
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ksux |= (ksux >> 1) & val; /* SX = 0 forces UX to be 0 */
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val = (val & ~(7 << CP0St_UX)) | ksux;
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#endif
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if (has_supervisor && extract32(val, CP0St_KSU, 2) == 0x3) {
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mask &= ~(3 << CP0St_KSU);
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}
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mask &= ~(((1 << CP0St_SR) | (1 << CP0St_NMI)) & val);
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}
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env->CP0_Status = (old & ~mask) | (val & mask);
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#if defined(TARGET_MIPS64)
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if ((env->CP0_Status ^ old) & (old & (7 << CP0St_UX))) {
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/* Access to at least one of the 64-bit segments has been disabled */
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cpu_mips_tlb_flush(env, 1);
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}
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#endif
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if (env->CP0_Config3 & (1 << CP0C3_MT)) {
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sync_c0_status(env, env, env->current_tc);
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} else {
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compute_hflags(env);
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}
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}
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static inline void cpu_mips_store_cause(CPUMIPSState *env, target_ulong val)
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{
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uint32_t mask = 0x00C00300;
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uint32_t old = env->CP0_Cause;
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int i;
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if (env->insn_flags & ISA_MIPS32R2) {
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mask |= 1 << CP0Ca_DC;
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}
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if (env->insn_flags & ISA_MIPS32R6) {
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mask &= ~((1 << CP0Ca_WP) & val);
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}
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env->CP0_Cause = (env->CP0_Cause & ~mask) | (val & mask);
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if ((old ^ env->CP0_Cause) & (1 << CP0Ca_DC)) {
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if (env->CP0_Cause & (1 << CP0Ca_DC)) {
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cpu_mips_stop_count(env);
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} else {
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cpu_mips_start_count(env);
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}
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}
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/* Set/reset software interrupts */
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for (i = 0 ; i < 2 ; i++) {
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if ((old ^ env->CP0_Cause) & (1 << (CP0Ca_IP + i))) {
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cpu_mips_soft_irq(env, i, env->CP0_Cause & (1 << (CP0Ca_IP + i)));
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}
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}
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}
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#endif
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void cpu_mips_tlb_flush(CPUMIPSState *env, int flush_global);
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void sync_c0_status(CPUMIPSState *env, CPUMIPSState *cpu, int tc);
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void cpu_mips_store_status(CPUMIPSState *env, target_ulong val);
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void cpu_mips_store_cause(CPUMIPSState *env, target_ulong val);
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void QEMU_NORETURN do_raise_exception_err(CPUMIPSState *env, uint32_t exception,
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int error_code, uintptr_t pc);
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@ -221,6 +221,114 @@ static int get_physical_address (CPUMIPSState *env, hwaddr *physical,
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}
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return ret;
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}
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void cpu_mips_tlb_flush(CPUMIPSState *env, int flush_global)
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{
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MIPSCPU *cpu = mips_env_get_cpu(env);
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/* Flush qemu's TLB and discard all shadowed entries. */
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tlb_flush(CPU(cpu), flush_global);
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env->tlb->tlb_in_use = env->tlb->nb_tlb;
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}
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/* Called for updates to CP0_Status. */
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void sync_c0_status(CPUMIPSState *env, CPUMIPSState *cpu, int tc)
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{
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int32_t tcstatus, *tcst;
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uint32_t v = cpu->CP0_Status;
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uint32_t cu, mx, asid, ksu;
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uint32_t mask = ((1 << CP0TCSt_TCU3)
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| (1 << CP0TCSt_TCU2)
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| (1 << CP0TCSt_TCU1)
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| (1 << CP0TCSt_TCU0)
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| (1 << CP0TCSt_TMX)
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| (3 << CP0TCSt_TKSU)
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| (0xff << CP0TCSt_TASID));
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cu = (v >> CP0St_CU0) & 0xf;
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mx = (v >> CP0St_MX) & 0x1;
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ksu = (v >> CP0St_KSU) & 0x3;
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asid = env->CP0_EntryHi & 0xff;
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tcstatus = cu << CP0TCSt_TCU0;
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tcstatus |= mx << CP0TCSt_TMX;
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tcstatus |= ksu << CP0TCSt_TKSU;
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tcstatus |= asid;
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if (tc == cpu->current_tc) {
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tcst = &cpu->active_tc.CP0_TCStatus;
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} else {
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tcst = &cpu->tcs[tc].CP0_TCStatus;
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}
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*tcst &= ~mask;
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*tcst |= tcstatus;
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compute_hflags(cpu);
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}
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void cpu_mips_store_status(CPUMIPSState *env, target_ulong val)
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{
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uint32_t mask = env->CP0_Status_rw_bitmask;
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target_ulong old = env->CP0_Status;
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if (env->insn_flags & ISA_MIPS32R6) {
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bool has_supervisor = extract32(mask, CP0St_KSU, 2) == 0x3;
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#if defined(TARGET_MIPS64)
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uint32_t ksux = (1 << CP0St_KX) & val;
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ksux |= (ksux >> 1) & val; /* KX = 0 forces SX to be 0 */
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ksux |= (ksux >> 1) & val; /* SX = 0 forces UX to be 0 */
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val = (val & ~(7 << CP0St_UX)) | ksux;
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#endif
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if (has_supervisor && extract32(val, CP0St_KSU, 2) == 0x3) {
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mask &= ~(3 << CP0St_KSU);
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}
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mask &= ~(((1 << CP0St_SR) | (1 << CP0St_NMI)) & val);
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}
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env->CP0_Status = (old & ~mask) | (val & mask);
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#if defined(TARGET_MIPS64)
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if ((env->CP0_Status ^ old) & (old & (7 << CP0St_UX))) {
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/* Access to at least one of the 64-bit segments has been disabled */
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cpu_mips_tlb_flush(env, 1);
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}
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#endif
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if (env->CP0_Config3 & (1 << CP0C3_MT)) {
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sync_c0_status(env, env, env->current_tc);
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} else {
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compute_hflags(env);
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}
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}
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void cpu_mips_store_cause(CPUMIPSState *env, target_ulong val)
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{
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uint32_t mask = 0x00C00300;
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uint32_t old = env->CP0_Cause;
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int i;
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if (env->insn_flags & ISA_MIPS32R2) {
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mask |= 1 << CP0Ca_DC;
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}
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if (env->insn_flags & ISA_MIPS32R6) {
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mask &= ~((1 << CP0Ca_WP) & val);
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}
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env->CP0_Cause = (env->CP0_Cause & ~mask) | (val & mask);
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if ((old ^ env->CP0_Cause) & (1 << CP0Ca_DC)) {
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if (env->CP0_Cause & (1 << CP0Ca_DC)) {
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cpu_mips_stop_count(env);
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} else {
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cpu_mips_start_count(env);
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}
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}
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/* Set/reset software interrupts */
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for (i = 0 ; i < 2 ; i++) {
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if ((old ^ env->CP0_Cause) & (1 << (CP0Ca_IP + i))) {
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cpu_mips_soft_irq(env, i, env->CP0_Cause & (1 << (CP0Ca_IP + i)));
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}
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}
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}
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#endif
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static void raise_mmu_exception(CPUMIPSState *env, target_ulong address,
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