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Signed-off-by: Richard Henderson Reviewed-by: Pierrick Bouvier --- include/hw/core/cpu.h | 1 - accel/tcg/cputlb.c | 39 ++++++++------------------------------- 2 files changed, 8 insertions(+), 32 deletions(-) diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h index 6b1c2bfadd..3022529733 100644 --- a/include/hw/core/cpu.h +++ b/include/hw/core/cpu.h @@ -216,7 +216,6 @@ typedef struct CPUTLBDesc { /* maximum number of entries observed in the window */ size_t window_max_entries; size_t n_used_entries; - CPUTLBEntryFull *fulltlb; /* All active tlb entries for this address space. */ IntervalTreeRoot iroot; } CPUTLBDesc; diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c index 2a8d1b4fb2..47b9557bb8 100644 --- a/accel/tcg/cputlb.c +++ b/accel/tcg/cputlb.c @@ -149,13 +149,6 @@ static inline CPUTLBEntry *tlbfast_entry(CPUTLBDescFas= t *fast, vaddr addr) return fast->table + tlbfast_index(fast, addr); } =20 -/* Find the TLB index corresponding to the mmu_idx + address pair. */ -static inline uintptr_t tlb_index(CPUState *cpu, uintptr_t mmu_idx, - vaddr addr) -{ - return tlbfast_index(&cpu->neg.tlb.f[mmu_idx], addr); -} - /* Find the TLB entry corresponding to the mmu_idx + address pair. */ static inline CPUTLBEntry *tlb_entry(CPUState *cpu, uintptr_t mmu_idx, vaddr addr) @@ -270,22 +263,20 @@ static void tlb_mmu_resize_locked(CPUTLBDesc *desc, C= PUTLBDescFast *fast, } =20 g_free(fast->table); - g_free(desc->fulltlb); =20 tlb_window_reset(desc, now, 0); /* desc->n_used_entries is cleared by the caller */ fast->mask =3D (new_size - 1) << CPU_TLB_ENTRY_BITS; fast->table =3D g_try_new(CPUTLBEntry, new_size); - desc->fulltlb =3D g_try_new(CPUTLBEntryFull, new_size); =20 /* - * If the allocations fail, try smaller sizes. We just freed some + * If the allocation fails, try smaller sizes. We just freed some * memory, so going back to half of new_size has a good chance of work= ing. * Increased memory pressure elsewhere in the system might cause the * allocations to fail though, so we progressively reduce the allocati= on * size, aborting if we cannot even allocate the smallest TLB we suppo= rt. */ - while (fast->table =3D=3D NULL || desc->fulltlb =3D=3D NULL) { + while (fast->table =3D=3D NULL) { if (new_size =3D=3D (1 << CPU_TLB_DYN_MIN_BITS)) { error_report("%s: %s", __func__, strerror(errno)); abort(); @@ -294,9 +285,7 @@ static void tlb_mmu_resize_locked(CPUTLBDesc *desc, CPU= TLBDescFast *fast, fast->mask =3D (new_size - 1) << CPU_TLB_ENTRY_BITS; =20 g_free(fast->table); - g_free(desc->fulltlb); fast->table =3D g_try_new(CPUTLBEntry, new_size); - desc->fulltlb =3D g_try_new(CPUTLBEntryFull, new_size); } } =20 @@ -350,7 +339,6 @@ static void tlb_mmu_init(CPUTLBDesc *desc, CPUTLBDescFa= st *fast, int64_t now) desc->n_used_entries =3D 0; fast->mask =3D (n_entries - 1) << CPU_TLB_ENTRY_BITS; fast->table =3D g_new(CPUTLBEntry, n_entries); - desc->fulltlb =3D g_new(CPUTLBEntryFull, n_entries); memset(&desc->iroot, 0, sizeof(desc->iroot)); tlb_mmu_flush_locked(desc, fast); } @@ -382,15 +370,9 @@ void tlb_init(CPUState *cpu) =20 void tlb_destroy(CPUState *cpu) { - int i; - qemu_spin_destroy(&cpu->neg.tlb.c.lock); - for (i =3D 0; i < NB_MMU_MODES; i++) { - CPUTLBDesc *desc =3D &cpu->neg.tlb.d[i]; - CPUTLBDescFast *fast =3D &cpu->neg.tlb.f[i]; - - g_free(fast->table); - g_free(desc->fulltlb); + for (int i =3D 0; i < NB_MMU_MODES; i++) { + g_free(cpu->neg.tlb.f[i].table); interval_tree_free_nodes(&cpu->neg.tlb.d[i].iroot, offsetof(CPUTLBEntryTree, itree)); } @@ -1090,7 +1072,7 @@ void tlb_set_page_full(CPUState *cpu, int mmu_idx, CPUTLB *tlb =3D &cpu->neg.tlb; CPUTLBDesc *desc =3D &tlb->d[mmu_idx]; MemoryRegionSection *section; - unsigned int index, read_flags, write_flags; + unsigned int read_flags, write_flags; uintptr_t addend; CPUTLBEntry *te; CPUTLBEntryTree *node; @@ -1169,7 +1151,6 @@ void tlb_set_page_full(CPUState *cpu, int mmu_idx, wp_flags =3D cpu_watchpoint_address_matches(cpu, addr_page, TARGET_PAGE_SIZE); =20 - index =3D tlb_index(cpu, mmu_idx, addr_page); te =3D tlb_entry(cpu, mmu_idx, addr_page); =20 /* @@ -1208,8 +1189,8 @@ void tlb_set_page_full(CPUState *cpu, int mmu_idx, * subtract here is that of the page base, and not the same as the * vaddr we add back in io_prepare()/get_page_addr_code(). */ - desc->fulltlb[index] =3D *full; - full =3D &desc->fulltlb[index]; + node->full =3D *full; + full =3D &node->full; full->xlat_section =3D iotlb - addr_page; full->phys_addr =3D paddr_page; =20 @@ -1232,7 +1213,6 @@ void tlb_set_page_full(CPUState *cpu, int mmu_idx, tlb_set_compare(full, &node->copy, addr_page, write_flags, MMU_DATA_STORE, prot & PAGE_WRITE); =20 - node->full =3D *full; copy_tlb_helper_locked(te, &node->copy); tlb_n_used_entries_inc(cpu, mmu_idx); qemu_spin_unlock(&tlb->c.lock); @@ -1343,7 +1323,6 @@ static bool tlbtree_hit(CPUState *cpu, int mmu_idx, CPUTLBDesc *desc =3D &cpu->neg.tlb.d[mmu_idx]; CPUTLBDescFast *fast =3D &cpu->neg.tlb.f[mmu_idx]; CPUTLBEntryTree *node; - size_t index; =20 assert_cpu_is_self(cpu); node =3D tlbtree_lookup_addr(desc, addr); @@ -1358,12 +1337,10 @@ static bool tlbtree_hit(CPUState *cpu, int mmu_idx, } =20 /* Install the cached entry. */ - index =3D tlbfast_index(fast, addr); qemu_spin_lock(&cpu->neg.tlb.c.lock); - copy_tlb_helper_locked(&fast->table[index], &node->copy); + copy_tlb_helper_locked(tlbfast_entry(fast, addr), &node->copy); qemu_spin_unlock(&cpu->neg.tlb.c.lock); =20 - desc->fulltlb[index] =3D node->full; return true; } =20 --=20 2.43.0