diff options
Diffstat (limited to 'tcg/sparc/tcg-target.inc.c')
| -rw-r--r-- | tcg/sparc/tcg-target.inc.c | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/tcg/sparc/tcg-target.inc.c b/tcg/sparc/tcg-target.inc.c index 8e98172ca0..700c43487f 100644 --- a/tcg/sparc/tcg-target.inc.c +++ b/tcg/sparc/tcg-target.inc.c @@ -249,6 +249,8 @@ static const int tcg_target_call_oarg_regs[] = { #define STWA (INSN_OP(3) | INSN_OP3(0x14)) #define STXA (INSN_OP(3) | INSN_OP3(0x1e)) +#define MEMBAR (INSN_OP(2) | INSN_OP3(0x28) | INSN_RS1(15) | (1 << 13)) + #ifndef ASI_PRIMARY_LITTLE #define ASI_PRIMARY_LITTLE 0x88 #endif @@ -835,6 +837,12 @@ static void tcg_out_call(TCGContext *s, tcg_insn_unit *dest) tcg_out_nop(s); } +static void tcg_out_mb(TCGContext *s, TCGArg a0) +{ + /* Note that the TCG memory order constants mirror the Sparc MEMBAR. */ + tcg_out32(s, MEMBAR | (a0 & TCG_MO_ALL)); +} + #ifdef CONFIG_SOFTMMU static tcg_insn_unit *qemu_ld_trampoline[16]; static tcg_insn_unit *qemu_st_trampoline[16]; @@ -996,19 +1004,25 @@ static void tcg_target_qemu_prologue(TCGContext *s) is in the returned register, maybe %o0. The TLB addend is in %o1. */ static TCGReg tcg_out_tlb_load(TCGContext *s, TCGReg addr, int mem_index, - TCGMemOp s_bits, int which) + TCGMemOp opc, int which) { const TCGReg r0 = TCG_REG_O0; const TCGReg r1 = TCG_REG_O1; const TCGReg r2 = TCG_REG_O2; + unsigned s_bits = opc & MO_SIZE; + unsigned a_bits = get_alignment_bits(opc); int tlb_ofs; /* Shift the page number down. */ tcg_out_arithi(s, r1, addr, TARGET_PAGE_BITS, SHIFT_SRL); - /* Mask out the page offset, except for the required alignment. */ + /* Mask out the page offset, except for the required alignment. + We don't support unaligned accesses. */ + if (a_bits < s_bits) { + a_bits = s_bits; + } tcg_out_movi(s, TCG_TYPE_TL, TCG_REG_T1, - TARGET_PAGE_MASK | ((1 << s_bits) - 1)); + TARGET_PAGE_MASK | ((1 << a_bits) - 1)); /* Mask the tlb index. */ tcg_out_arithi(s, r1, r1, CPU_TLB_SIZE - 1, ARITH_AND); @@ -1087,7 +1101,7 @@ static void tcg_out_qemu_ld(TCGContext *s, TCGReg data, TCGReg addr, tcg_insn_unit *func; tcg_insn_unit *label_ptr; - addrz = tcg_out_tlb_load(s, addr, memi, memop & MO_SIZE, + addrz = tcg_out_tlb_load(s, addr, memi, memop, offsetof(CPUTLBEntry, addr_read)); /* The fast path is exactly one insn. Thus we can perform the @@ -1169,7 +1183,7 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg data, TCGReg addr, tcg_insn_unit *func; tcg_insn_unit *label_ptr; - addrz = tcg_out_tlb_load(s, addr, memi, memop & MO_SIZE, + addrz = tcg_out_tlb_load(s, addr, memi, memop, offsetof(CPUTLBEntry, addr_write)); /* The fast path is exactly one insn. Thus we can perform the entire @@ -1460,6 +1474,10 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, tcg_out_arithc(s, a0, TCG_REG_G0, a1, const_args[1], c); break; + case INDEX_op_mb: + tcg_out_mb(s, a0); + break; + case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */ case INDEX_op_mov_i64: case INDEX_op_movi_i32: /* Always emitted via tcg_out_movi. */ @@ -1561,6 +1579,7 @@ static const TCGTargetOpDef sparc_op_defs[] = { { INDEX_op_qemu_st_i32, { "sZ", "A" } }, { INDEX_op_qemu_st_i64, { "SZ", "A" } }, + { INDEX_op_mb, { } }, { -1 }, }; |