From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C51BDC38A2D for ; Tue, 25 Oct 2022 02:02:00 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1on9E3-0000KH-7m; Mon, 24 Oct 2022 21:59:31 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1on9E1-0000HC-Jn for qemu-devel@nongnu.org; Mon, 24 Oct 2022 21:59:29 -0400 Received: from mail-pg1-x536.google.com ([2607:f8b0:4864:20::536]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1on9Dz-0000nU-Lc for qemu-devel@nongnu.org; Mon, 24 Oct 2022 21:59:29 -0400 Received: by mail-pg1-x536.google.com with SMTP id s196so10250127pgs.3 for ; Mon, 24 Oct 2022 18:59:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:in-reply-to:references:to:from :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=V2m7yBsreqrp2v1AUGBxWUCch9mGH1vA0QD//LJkJnM=; b=mulFV8I3jrlps/+oFumtg+cQO6LwMJZq1HhUaB1637mrG7JNodnjghpNUqE6++2VFW GJix73XgtETtJk8tR5HNY2eaVPizYf0Gs2B6w14/WqWru4vIl500+wod1kSEim+AYfjY HK78WJjSjwURcSZxcI40ekr9OQjp1TWwyFSAWgdoHz7c2YNkkvPjsSbOT3MSdLzzrvtl QT3a4BnjI7TRKqYm+q8vrGbz0FG7KMK2iZ5i1GO5IsNd59/LFQUUqv+OS/W5FfZK+BVd XuEZIyf5gxO4EKkdn0lwEVgKeuD5fOrp2TQsTvqA1Z9U5jQ/cH4gOQ8sZKH1Al6VEzYh LWgg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:references:to:from :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=V2m7yBsreqrp2v1AUGBxWUCch9mGH1vA0QD//LJkJnM=; b=oioTTv2itUtPfaf/O9Viud1+nK/0u38AwIqa5UYZjVYPltQF5lFgE13fJjJ3tuqiZA mzv+TMnWUBBmKP5QY94krsFUK6fSRIFQfFxqcvZAfCtDS7Xdrhe2XQ6oW4uaTa+Ummzf 0eTv27Og6i24aioPb2AB31I4hOaajuKc8JFydT+UDaI5IgNlRWd6HBduhPu7VN1arjGi X54Dc3MiLJanq/WcqE1GvNocB2aXjD9hTF+gQjiG+r52xwXdwIumjsL8GanKW9iGJpId kGo7opMA5us41OFVO7PMa/9myrh08+f8Ho1DTY53A4mUXqkKl7QvKDufuRJkMZpsEjB/ 2ueA== X-Gm-Message-State: ACrzQf1JvK6rtmmtyjI6/HjDxHGGONWhfufPfn9Uf6ue22p95iUmQ/Te EFc+aBpRSz4x6r8+GrI1QjZSHokLHLMfqA== X-Google-Smtp-Source: AMsMyM4RWRf9x+AFl7gM6m00EfES/iVXsz4UNx2qPpO7+yj/QzAf3haOZXVKp817MSzaRRQdthftDQ== X-Received: by 2002:a63:64d:0:b0:46b:158f:102e with SMTP id 74-20020a63064d000000b0046b158f102emr31644958pgg.150.1666663165985; Mon, 24 Oct 2022 18:59:25 -0700 (PDT) Received: from [172.31.50.139] ([103.100.225.182]) by smtp.gmail.com with ESMTPSA id r24-20020aa79638000000b0056bab544100sm407368pfg.197.2022.10.24.18.59.24 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 24 Oct 2022 18:59:25 -0700 (PDT) Message-ID: <4d00256a-8213-c56c-7d50-3d09370552d9@linaro.org> Date: Tue, 25 Oct 2022 11:59:21 +1000 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.2.2 Subject: Re: [PATCH 4/4] include/qemu/atomic128: Avoid __sync_val_compare_and_swap_16 Content-Language: en-US From: Richard Henderson To: qemu-devel@nongnu.org References: <20221024232435.3334600-1-richard.henderson@linaro.org> <20221024232435.3334600-5-richard.henderson@linaro.org> In-Reply-To: <20221024232435.3334600-5-richard.henderson@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::536; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x536.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Qemu-devel" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 10/25/22 09:24, Richard Henderson wrote: > Merge the CONFIG_ATOMIC128 and CONFIG_CMPXCHG128 cases > with respect to atomic16_cmpxchg and use > __atomic_compare_exchange_nomic (via qatomic_cmpxchg) > instead of the "legacy" __sync_val_compare_and_swap_16. > > Update the meson has_cmpxchg128 test to match. > > Signed-off-by: Richard Henderson > --- > include/qemu/atomic128.h | 8 +------- > meson.build | 3 ++- > 2 files changed, 3 insertions(+), 8 deletions(-) Ho hum. Must drop this one since for reasons that I cannot fathom, x86_64 does not implement the __atomic version. r~