diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2021-07-16 14:20:49 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2021-07-21 07:45:38 -1000 |
| commit | be9568b4e02100681af14ab2d17522c3d497f511 (patch) | |
| tree | 139ea7e6fc042a405e980347cb502b7f9b341498 /target/i386 | |
| parent | 9ef0c6d6a7d81992a2326416a9ce12eef2824861 (diff) | |
tcg: Rename helper_atomic_*_mmu and provide for user-only
Always provide the atomic interface using TCGMemOpIdx oi
and uintptr_t retaddr. Rename from helper_* to cpu_* so
as to (mostly) match the exec/cpu_ldst.h functions, and
to emphasize that they are not callable from TCG directly.
Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/i386')
| -rw-r--r-- | target/i386/tcg/mem_helper.c | 15 |
1 files changed, 2 insertions, 13 deletions
diff --git a/target/i386/tcg/mem_helper.c b/target/i386/tcg/mem_helper.c index 591f512bff..2da3cd14b6 100644 --- a/target/i386/tcg/mem_helper.c +++ b/target/i386/tcg/mem_helper.c @@ -64,22 +64,12 @@ void helper_cmpxchg8b(CPUX86State *env, target_ulong a0) cmpv = deposit64(env->regs[R_EAX], 32, 32, env->regs[R_EDX]); newv = deposit64(env->regs[R_EBX], 32, 32, env->regs[R_ECX]); -#ifdef CONFIG_USER_ONLY - { - uint64_t *haddr = g2h(env_cpu(env), a0); - cmpv = cpu_to_le64(cmpv); - newv = cpu_to_le64(newv); - oldv = qatomic_cmpxchg__nocheck(haddr, cmpv, newv); - oldv = le64_to_cpu(oldv); - } -#else { uintptr_t ra = GETPC(); int mem_idx = cpu_mmu_index(env, false); TCGMemOpIdx oi = make_memop_idx(MO_TEQ, mem_idx); - oldv = helper_atomic_cmpxchgq_le_mmu(env, a0, cmpv, newv, oi, ra); + oldv = cpu_atomic_cmpxchgq_le_mmu(env, a0, cmpv, newv, oi, ra); } -#endif if (oldv == cmpv) { eflags |= CC_Z; @@ -147,8 +137,7 @@ void helper_cmpxchg16b(CPUX86State *env, target_ulong a0) int mem_idx = cpu_mmu_index(env, false); TCGMemOpIdx oi = make_memop_idx(MO_TEQ | MO_ALIGN_16, mem_idx); - Int128 oldv = helper_atomic_cmpxchgo_le_mmu(env, a0, cmpv, - newv, oi, ra); + Int128 oldv = cpu_atomic_cmpxchgo_le_mmu(env, a0, cmpv, newv, oi, ra); if (int128_eq(oldv, cmpv)) { eflags |= CC_Z; |