diff options
Diffstat (limited to 'tcg/mips/tcg-target.inc.c')
| -rw-r--r-- | tcg/mips/tcg-target.inc.c | 39 |
1 files changed, 9 insertions, 30 deletions
diff --git a/tcg/mips/tcg-target.inc.c b/tcg/mips/tcg-target.inc.c index ef6633587e..41bff32fb4 100644 --- a/tcg/mips/tcg-target.inc.c +++ b/tcg/mips/tcg-target.inc.c @@ -1202,6 +1202,10 @@ static int tcg_out_call_iarg_reg2(TCGContext *s, int i, TCGReg al, TCGReg ah) return i; } +/* We expect to use a 16-bit negative offset from ENV. */ +QEMU_BUILD_BUG_ON(TLB_MASK_TABLE_OFS(0) > 0); +QEMU_BUILD_BUG_ON(TLB_MASK_TABLE_OFS(0) < -32768); + /* * Perform the tlb comparison operation. * The complete host address is placed in BASE. @@ -1215,42 +1219,17 @@ static void tcg_out_tlb_load(TCGContext *s, TCGReg base, TCGReg addrl, unsigned s_bits = opc & MO_SIZE; unsigned a_bits = get_alignment_bits(opc); int mem_index = get_mmuidx(oi); - int mask_off = offsetof(CPUArchState, tlb_.f[mem_index].mask); - int table_off = offsetof(CPUArchState, tlb_.f[mem_index].mask); + 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); int add_off = offsetof(CPUTLBEntry, addend); int cmp_off = (is_load ? offsetof(CPUTLBEntry, addr_read) : offsetof(CPUTLBEntry, addr_write)); - TCGReg mask_base = TCG_AREG0, table_base = TCG_AREG0; target_ulong mask; - if (table_off > 0x7fff) { - int mask_hi = mask_off - (int16_t)mask_off; - int table_hi = table_off - (int16_t)table_off; - - table_base = TCG_TMP1; - if (likely(mask_hi == table_hi)) { - mask_base = table_base; - tcg_out_opc_imm(s, OPC_LUI, mask_base, TCG_REG_ZERO, mask_hi >> 16); - tcg_out_opc_reg(s, ALIAS_PADD, mask_base, mask_base, TCG_AREG0); - mask_off -= mask_hi; - table_off -= mask_hi; - } else { - if (mask_hi != 0) { - mask_base = TCG_TMP0; - tcg_out_opc_imm(s, OPC_LUI, - mask_base, TCG_REG_ZERO, mask_hi >> 16); - tcg_out_opc_reg(s, ALIAS_PADD, - mask_base, mask_base, TCG_AREG0); - } - table_off -= mask_off; - mask_off -= mask_hi; - tcg_out_opc_imm(s, ALIAS_PADDI, table_base, mask_base, mask_off); - } - } - /* Load tlb_mask[mmu_idx] and tlb_table[mmu_idx]. */ - tcg_out_ld(s, TCG_TYPE_PTR, TCG_TMP0, mask_base, mask_off); - tcg_out_ld(s, TCG_TYPE_PTR, TCG_TMP1, table_base, table_off); + tcg_out_ld(s, TCG_TYPE_PTR, TCG_TMP0, TCG_AREG0, mask_off); + tcg_out_ld(s, TCG_TYPE_PTR, TCG_TMP1, TCG_AREG0, table_off); /* Extract the TLB index from the address into TMP3. */ tcg_out_opc_sa(s, ALIAS_TSRL, TCG_TMP3, addrl, |