cputlb: Remove tlb_c.pending_flushes
This is essentially redundant with tlb_c.dirty. Tested-by: Emilio G. Cota <cota@braap.org> Reviewed-by: Emilio G. Cota <cota@braap.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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@ -174,20 +174,8 @@ void tlb_flush_by_mmuidx(CPUState *cpu, uint16_t idxmap)
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tlb_debug("mmu_idx: 0x%" PRIx16 "\n", idxmap);
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tlb_debug("mmu_idx: 0x%" PRIx16 "\n", idxmap);
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if (cpu->created && !qemu_cpu_is_self(cpu)) {
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if (cpu->created && !qemu_cpu_is_self(cpu)) {
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CPUArchState *env = cpu->env_ptr;
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async_run_on_cpu(cpu, tlb_flush_by_mmuidx_async_work,
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uint16_t pending, to_clean;
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RUN_ON_CPU_HOST_INT(idxmap));
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qemu_spin_lock(&env->tlb_c.lock);
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pending = env->tlb_c.pending_flush;
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to_clean = idxmap & ~pending;
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env->tlb_c.pending_flush = pending | idxmap;
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qemu_spin_unlock(&env->tlb_c.lock);
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if (to_clean) {
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tlb_debug("reduced mmu_idx: 0x%" PRIx16 "\n", to_clean);
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async_run_on_cpu(cpu, tlb_flush_by_mmuidx_async_work,
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RUN_ON_CPU_HOST_INT(to_clean));
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}
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} else {
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} else {
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tlb_flush_by_mmuidx_async_work(cpu, RUN_ON_CPU_HOST_INT(idxmap));
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tlb_flush_by_mmuidx_async_work(cpu, RUN_ON_CPU_HOST_INT(idxmap));
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}
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}
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@ -160,12 +160,6 @@ typedef struct CPUTLBDesc {
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typedef struct CPUTLBCommon {
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typedef struct CPUTLBCommon {
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/* Serialize updates to tlb_table and tlb_v_table, and others as noted. */
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/* Serialize updates to tlb_table and tlb_v_table, and others as noted. */
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QemuSpin lock;
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QemuSpin lock;
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/*
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* Within pending_flush, for each bit N, there exists an outstanding
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* cross-cpu flush for mmu_idx N. Further cross-cpu flushes to that
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* mmu_idx may be discarded. Protected by tlb_c.lock.
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*/
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uint16_t pending_flush;
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/*
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/*
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* Within dirty, for each bit N, modifications have been made to
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* Within dirty, for each bit N, modifications have been made to
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* mmu_idx N since the last time that mmu_idx was flushed.
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* mmu_idx N since the last time that mmu_idx was flushed.
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