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| author | Richard Henderson <rth@twiddle.net> | 2016-09-12 19:01:53 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-10-31 14:46:48 -0600 |
| commit | da1bcae65288bdd51e0a7203d1e6c9cde1be5b3d (patch) | |
| tree | 02b313878209f6a141bd5de4ef31e617f0c6bd66 | |
| parent | 47b2696b975b794c6fa7b9fa8ae4699e749d662c (diff) | |
| download | qemu-da1bcae65288bdd51e0a7203d1e6c9cde1be5b3d.tar.gz | |
target-sparc: Use tcg_gen_atomic_xchg_tl
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <rth@twiddle.net>
| -rw-r--r-- | target-sparc/translate.c | 19 |
1 files changed, 4 insertions, 15 deletions
diff --git a/target-sparc/translate.c b/target-sparc/translate.c index 4920cf28e7..82f5e67f0f 100644 --- a/target-sparc/translate.c +++ b/target-sparc/translate.c @@ -2026,27 +2026,16 @@ static inline void gen_ne_fop_QD(DisasContext *dc, int rd, int rs, static void gen_swap(DisasContext *dc, TCGv dst, TCGv src, TCGv addr, int mmu_idx, TCGMemOp memop) { - /* ??? Should be atomic. */ - TCGv t0 = tcg_temp_new(); gen_address_mask(dc, addr); - tcg_gen_qemu_ld_tl(t0, addr, mmu_idx, memop); - tcg_gen_qemu_st_tl(src, addr, mmu_idx, memop); - tcg_gen_mov_tl(dst, t0); - tcg_temp_free(t0); + tcg_gen_atomic_xchg_tl(dst, addr, src, mmu_idx, memop); } static void gen_ldstub(DisasContext *dc, TCGv dst, TCGv addr, int mmu_idx) { - /* ??? Should be atomic. */ - TCGv_i32 t0 = tcg_temp_new_i32(); - TCGv_i32 t1 = tcg_const_i32(0xff); - + TCGv m1 = tcg_const_tl(0xff); gen_address_mask(dc, addr); - tcg_gen_qemu_ld_i32(t0, addr, mmu_idx, MO_UB); - tcg_gen_qemu_st_i32(t1, addr, mmu_idx, MO_UB); - tcg_gen_extu_i32_tl(dst, t0); - tcg_temp_free_i32(t0); - tcg_temp_free_i32(t1); + tcg_gen_atomic_xchg_tl(dst, addr, m1, mmu_idx, MO_UB); + tcg_temp_free(m1); } /* asi moves */ |