diff options
| author | Richard Henderson <rth@twiddle.net> | 2014-05-14 17:14:51 -0400 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2014-05-15 09:22:32 -0700 |
| commit | a10c64e0df3acbefdee1b2b837f76f05b0231aae (patch) | |
| tree | 70457e5526c7d69abcd52ff6873d1c47bf666df8 | |
| parent | 061cdd818251307d82dc8d4d7416ff34ddce49bc (diff) | |
tcg-s390: Implement direct chaining of TBs
Signed-off-by: Richard Henderson <rth@twiddle.net>
| -rw-r--r-- | include/exec/exec-all.h | 9 | ||||
| -rw-r--r-- | tcg/s390/tcg-target.c | 4 |
2 files changed, 12 insertions, 1 deletions
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index 444b4d9a1..8bc2eb663 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -131,6 +131,7 @@ static inline void tlb_flush(CPUState *cpu, int flush_global) #if defined(__arm__) || defined(_ARCH_PPC) \ || defined(__x86_64__) || defined(__i386__) \ || defined(__sparc__) || defined(__aarch64__) \ + || defined(__s390x__) \ || defined(CONFIG_TCG_INTERPRETER) #define USE_DIRECT_JUMP #endif @@ -232,6 +233,14 @@ static inline void tb_set_jmp_target1(uintptr_t jmp_addr, uintptr_t addr) stl_le_p((void*)jmp_addr, addr - (jmp_addr + 4)); /* no need to flush icache explicitly */ } +#elif defined(__s390x__) +static inline void tb_set_jmp_target1(uintptr_t jmp_addr, uintptr_t addr) +{ + /* patch the branch destination */ + intptr_t disp = addr - (jmp_addr - 2); + stl_be_p((void*)jmp_addr, disp / 2); + /* no need to flush icache explicitly */ +} #elif defined(__aarch64__) void aarch64_tb_set_jmp_target(uintptr_t jmp_addr, uintptr_t addr); #define tb_set_jmp_target1 aarch64_tb_set_jmp_target diff --git a/tcg/s390/tcg-target.c b/tcg/s390/tcg-target.c index e235130a4..07164e544 100644 --- a/tcg/s390/tcg-target.c +++ b/tcg/s390/tcg-target.c @@ -1703,7 +1703,9 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, case INDEX_op_goto_tb: if (s->tb_jmp_offset) { - tcg_abort(); + tcg_out16(s, RIL_BRCL | (S390_CC_ALWAYS << 4)); + s->tb_jmp_offset[args[0]] = tcg_current_code_size(s); + s->code_ptr += 2; } else { /* load address stored at s->tb_next + args[0] */ tcg_out_ld_abs(s, TCG_TYPE_PTR, TCG_TMP0, s->tb_next + args[0]); |