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.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 AED13C7619A for ; Wed, 5 Apr 2023 14:22:03 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Ps6Jp13PSz3fRf for ; Thu, 6 Apr 2023 00:22:02 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20210112 header.b=dw4QAoMp; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=2a00:1450:4864:20::530; helo=mail-ed1-x530.google.com; envelope-from=ubizjak@gmail.com; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20210112 header.b=dw4QAoMp; dkim-atps=neutral Received: from mail-ed1-x530.google.com (mail-ed1-x530.google.com [IPv6:2a00:1450:4864:20::530]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4Ps6D5532Nz3cjJ for ; Thu, 6 Apr 2023 00:17:57 +1000 (AEST) Received: by mail-ed1-x530.google.com with SMTP id b20so141490408edd.1 for ; Wed, 05 Apr 2023 07:17:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1680704274; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=fOC1m1IyvFx7hqlIu85ltj9Okdj8PWnyI3fah+Gac6o=; b=dw4QAoMpVGLEOeYQ9Yo6hrg7uuDz1mqcfEuifQdcdnb1mCRfnp4USqcIZ/tj+yoqqd NuZo8Fl4HHUAk4my79oi/1gAt96ZaHSFf0NyBNIA2ujrdK0vV+BtAz9cZUh1HP/21L01 ZfOBKFtABC40OHga/xcc6LZLy5bp81QTL5BA33wmnqyDDroTbAF7IVTNrZhDCZYY5uav cpNPwfW8+ndEboG7KmpMryAu2BP5Ht2BhpnVlW+EgEVP3Hv8o6yChfq1iPaWIKJDgzD/ 9Y/9bUrxWUeU4eBT8lu+LsRKzoAiRRbIgYAetGEXNMYLkTxdyCEUikhfLAP1CktMT2oa eHBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1680704274; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=fOC1m1IyvFx7hqlIu85ltj9Okdj8PWnyI3fah+Gac6o=; b=PlYURye/ViczP/4wX5WjzMp9RL9WuKrLKRVBa7N9KuzIDfyG4oOfEFtRXODQ6f6b4Q s15TxiyWssk75E9Fc3UW2PtlStxiyEUPDfXdzYtO4Fl/t/3B6Pul30bjCQBrFs77izG4 1X3gRRfoj4Qb55RxFUHJ8vFYRg72kcpqib0sHPOOWO6b6NEB4Ivau3XLW6zFIpH5YcOK wIcxQntQMHsjJLp4UoQG+kRKEEhha0AF8NxMh+h2uwlq4FfRWQTvAoqr6gKfp91q+tHB mRd7wK0bEWQ8TFiSp1RYq25Gb5FexLs+Yov1HdvJCFueVpmO07yDRfiGTPxR4TuX9M6w vCBA== X-Gm-Message-State: AAQBX9dEuu/w5qzZllcRBSUcZUeLn08XX5whdkmamrNXxYiKm5rMoh/d ZhIBlnoawBy6vRV17TeofR0= X-Google-Smtp-Source: AKy350bz5YnNlQahgd6VXOTs26Uhu2FUvH9WVqbCQND0Gop8QRbR/cXdIQACyHoPPOUtbLiBje74GQ== X-Received: by 2002:a17:906:4a8b:b0:944:43e:7983 with SMTP id x11-20020a1709064a8b00b00944043e7983mr3280252eju.67.1680704274221; Wed, 05 Apr 2023 07:17:54 -0700 (PDT) Received: from localhost.localdomain ([46.248.82.114]) by smtp.gmail.com with ESMTPSA id g6-20020a170906348600b009334219656dsm7381246ejb.56.2023.04.05.07.17.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Apr 2023 07:17:53 -0700 (PDT) From: Uros Bizjak To: linux-alpha@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, x86@kernel.org, linux-arch@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 4/5] locking/x86: Define arch_try_cmpxchg_local Date: Wed, 5 Apr 2023 16:17:09 +0200 Message-Id: <20230405141710.3551-5-ubizjak@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230405141710.3551-1-ubizjak@gmail.com> References: <20230405141710.3551-1-ubizjak@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dave Hansen , Uros Bizjak , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Thomas Gleixner Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Define target specific arch_try_cmpxchg_local. This definition overrides the generic arch_try_cmpxchg_local fallback definition and enables target-specific implementation of try_cmpxchg_local. Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Borislav Petkov Cc: Dave Hansen Cc: "H. Peter Anvin" Signed-off-by: Uros Bizjak --- arch/x86/include/asm/cmpxchg.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h index 94fbe6ae7431..540573f515b7 100644 --- a/arch/x86/include/asm/cmpxchg.h +++ b/arch/x86/include/asm/cmpxchg.h @@ -221,9 +221,15 @@ extern void __add_wrong_size(void) #define __try_cmpxchg(ptr, pold, new, size) \ __raw_try_cmpxchg((ptr), (pold), (new), (size), LOCK_PREFIX) +#define __try_cmpxchg_local(ptr, pold, new, size) \ + __raw_try_cmpxchg((ptr), (pold), (new), (size), "") + #define arch_try_cmpxchg(ptr, pold, new) \ __try_cmpxchg((ptr), (pold), (new), sizeof(*(ptr))) +#define arch_try_cmpxchg_local(ptr, pold, new) \ + __try_cmpxchg_local((ptr), (pold), (new), sizeof(*(ptr))) + /* * xadd() adds "inc" to "*ptr" and atomically returns the previous * value of "*ptr". -- 2.39.2