diff options
Diffstat (limited to 'tcg/arm/tcg-target.inc.c')
| -rw-r--r-- | tcg/arm/tcg-target.inc.c | 40 |
1 files changed, 8 insertions, 32 deletions
diff --git a/tcg/arm/tcg-target.inc.c b/tcg/arm/tcg-target.inc.c index 38de6d59c7..b066e30f0e 100644 --- a/tcg/arm/tcg-target.inc.c +++ b/tcg/arm/tcg-target.inc.c @@ -1220,9 +1220,9 @@ static TCGReg tcg_out_arg_reg64(TCGContext *s, TCGReg argreg, #define TLB_SHIFT (CPU_TLB_ENTRY_BITS + CPU_TLB_BITS) -/* We expect to use a 20-bit unsigned offset from ENV. */ -QEMU_BUILD_BUG_ON(offsetof(CPUArchState, tlb_.f[NB_MMU_MODES - 1].table) - > 0xfffff); +/* We expect to use an 9-bit sign-magnitude negative offset from ENV. */ +QEMU_BUILD_BUG_ON(TLB_MASK_TABLE_OFS(0) > 0); +QEMU_BUILD_BUG_ON(TLB_MASK_TABLE_OFS(0) < -256); /* Load and compare a TLB entry, leaving the flags set. Returns the register containing the addend of the tlb entry. Clobbers R0, R1, R2, TMP. */ @@ -1232,39 +1232,15 @@ static TCGReg tcg_out_tlb_read(TCGContext *s, TCGReg addrlo, TCGReg addrhi, { int cmp_off = (is_load ? offsetof(CPUTLBEntry, addr_read) : offsetof(CPUTLBEntry, addr_write)); - int mask_off = offsetof(CPUArchState, tlb_.f[mem_index].mask); - int table_off = offsetof(CPUArchState, tlb_.f[mem_index].table); - TCGReg mask_base = TCG_AREG0, table_base = TCG_AREG0; + int fast_off = TLB_MASK_TABLE_OFS(mem_index); + int mask_off = fast_off + offsetof(CPUTLBDescFast, mask); + int table_off = fast_off + offsetof(CPUTLBDescFast, table); unsigned s_bits = opc & MO_SIZE; unsigned a_bits = get_alignment_bits(opc); - if (table_off > 0xfff) { - int mask_hi = mask_off & ~0xfff; - int table_hi = table_off & ~0xfff; - int rot; - - table_base = TCG_REG_R2; - if (mask_hi == table_hi) { - mask_base = table_base; - } else if (mask_hi) { - mask_base = TCG_REG_TMP; - rot = encode_imm(mask_hi); - assert(rot >= 0); - tcg_out_dat_imm(s, COND_AL, ARITH_ADD, mask_base, TCG_AREG0, - rotl(mask_hi, rot) | (rot << 7)); - } - rot = encode_imm(table_hi); - assert(rot >= 0); - tcg_out_dat_imm(s, COND_AL, ARITH_ADD, table_base, TCG_AREG0, - rotl(table_hi, rot) | (rot << 7)); - - mask_off -= mask_hi; - table_off -= table_hi; - } - /* Load tlb_mask[mmu_idx] and tlb_table[mmu_idx]. */ - tcg_out_ld(s, TCG_TYPE_I32, TCG_REG_TMP, mask_base, mask_off); - tcg_out_ld(s, TCG_TYPE_I32, TCG_REG_R2, table_base, table_off); + tcg_out_ld(s, TCG_TYPE_I32, TCG_REG_TMP, TCG_AREG0, mask_off); + tcg_out_ld(s, TCG_TYPE_I32, TCG_REG_R2, TCG_AREG0, table_off); /* Extract the tlb index from the address into TMP. */ tcg_out_dat_reg(s, COND_AL, ARITH_AND, TCG_REG_TMP, TCG_REG_TMP, addrlo, |