From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39205) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gDNwh-0004S5-CH for qemu-devel@nongnu.org; Fri, 19 Oct 2018 02:07:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gDNwf-0002mW-QO for qemu-devel@nongnu.org; Fri, 19 Oct 2018 02:07:39 -0400 Received: from mail-pg1-x532.google.com ([2607:f8b0:4864:20::532]:43674) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gDNwf-0002Bk-8F for qemu-devel@nongnu.org; Fri, 19 Oct 2018 02:07:37 -0400 Received: by mail-pg1-x532.google.com with SMTP id d8-v6so4085700pgv.10 for ; Thu, 18 Oct 2018 23:07:17 -0700 (PDT) From: Richard Henderson Date: Thu, 18 Oct 2018 23:06:48 -0700 Message-Id: <20181019060656.7968-14-richard.henderson@linaro.org> In-Reply-To: <20181019060656.7968-1-richard.henderson@linaro.org> References: <20181019060656.7968-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PULL v2 13/21] target/i386: Convert to HAVE_CMPXCHG128 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: peter.maydell@linaro.org Reviewed-by: Emilio G. Cota Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- target/i386/mem_helper.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/target/i386/mem_helper.c b/target/i386/mem_helper.c index 30c26b9d9c..6cc53bcb40 100644 --- a/target/i386/mem_helper.c +++ b/target/i386/mem_helper.c @@ -23,6 +23,7 @@ #include "exec/exec-all.h" #include "exec/cpu_ldst.h" #include "qemu/int128.h" +#include "qemu/atomic128.h" #include "tcg.h" void helper_cmpxchg8b_unlocked(CPUX86State *env, target_ulong a0) @@ -137,10 +138,7 @@ void helper_cmpxchg16b(CPUX86State *env, target_ulong a0) if ((a0 & 0xf) != 0) { raise_exception_ra(env, EXCP0D_GPF, ra); - } else { -#ifndef CONFIG_ATOMIC128 - cpu_loop_exit_atomic(ENV_GET_CPU(env), ra); -#else + } else if (HAVE_CMPXCHG128) { int eflags = cpu_cc_compute_all(env, CC_OP); Int128 cmpv = int128_make128(env->regs[R_EAX], env->regs[R_EDX]); @@ -159,7 +157,8 @@ void helper_cmpxchg16b(CPUX86State *env, target_ulong a0) eflags &= ~CC_Z; } CC_SRC = eflags; -#endif + } else { + cpu_loop_exit_atomic(ENV_GET_CPU(env), ra); } } #endif -- 2.17.2