From patchwork Thu May 22 16:47:17 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Will Deacon X-Patchwork-Id: 30641 Return-Path: X-Original-To: linaro@patches.linaro.org Delivered-To: linaro@patches.linaro.org Received: from mail-pb0-f70.google.com (mail-pb0-f70.google.com [209.85.160.70]) by ip-10-151-82-157.ec2.internal (Postfix) with ESMTPS id B71E220671 for ; Thu, 22 May 2014 16:49:49 +0000 (UTC) Received: by mail-pb0-f70.google.com with SMTP id rq2sf11900673pbb.5 for ; Thu, 22 May 2014 09:49:48 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:delivered-to:from:to:cc:subject :date:message-id:in-reply-to:references:sender:precedence:list-id :x-original-sender:x-original-authentication-results:mailing-list :list-post:list-help:list-archive:list-unsubscribe; bh=1WZTN6NhAmKH+p6DdYdVIJQGcMgJD0XpliWJjBoBgVk=; b=HUQqIM4A0Rbn4LCGSMedaYgRlLYvDv5LDXFUkt4AIBJUkcZ7/Tg8pvGMa1HsoUtfbg nD7QMP1IhToh1PlwZq/G+D7F/zBzRC7sH6hJ2bSPW3A/fMg4dpnSTOG40d+2/zu016Sl zOjoVvv9qpvvUiDdnfqODP24VbPTUlesTqXnPAW1c53+aMovdfUdsJ6qFE+7ptMR+MqI UgAyJ/LPghR9o2p7OALbg1v2pj2DqVqNl7Y1u6pWDc3/YbrDMwcTSkCmDZvFh4jAfImi QahYL4CQUz5CMS0elfJ0xBoekIK4osVgWUTSFZ0F/gunLknHaSi7vGtiq39lasQFriKf hpyg== X-Gm-Message-State: ALoCoQl+GIdZrubXTC3qdUAqDzjmoztV1U9aAOPvWzsmCe410ahA2gpuIfoXHaRWJj96BXP4l/ZC X-Received: by 10.67.4.170 with SMTP id cf10mr23668959pad.31.1400777388866; Thu, 22 May 2014 09:49:48 -0700 (PDT) MIME-Version: 1.0 X-BeenThere: patchwork-forward@linaro.org Received: by 10.140.85.40 with SMTP id m37ls1301949qgd.18.gmail; Thu, 22 May 2014 09:49:48 -0700 (PDT) X-Received: by 10.58.243.39 with SMTP id wv7mr2009516vec.51.1400777388663; Thu, 22 May 2014 09:49:48 -0700 (PDT) Received: from mail-vc0-f182.google.com (mail-vc0-f182.google.com [209.85.220.182]) by mx.google.com with ESMTPS id xb10si207424vcb.45.2014.05.22.09.49.48 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 22 May 2014 09:49:48 -0700 (PDT) Received-SPF: pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.220.182 as permitted sender) client-ip=209.85.220.182; Received: by mail-vc0-f182.google.com with SMTP id la4so4799985vcb.13 for ; Thu, 22 May 2014 09:49:48 -0700 (PDT) X-Received: by 10.220.205.3 with SMTP id fo3mr1539884vcb.57.1400777388587; Thu, 22 May 2014 09:49:48 -0700 (PDT) X-Forwarded-To: patchwork-forward@linaro.org X-Forwarded-For: patch@linaro.org patchwork-forward@linaro.org Delivered-To: patch@linaro.org Received: by 10.220.221.72 with SMTP id ib8csp215133vcb; Thu, 22 May 2014 09:49:48 -0700 (PDT) X-Received: by 10.69.10.164 with SMTP id eb4mr65966021pbd.35.1400777387755; Thu, 22 May 2014 09:49:47 -0700 (PDT) Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id ua1si483268pab.16.2014.05.22.09.49.47; Thu, 22 May 2014 09:49:47 -0700 (PDT) Received-SPF: none (google.com: linux-kernel-owner@vger.kernel.org does not designate permitted sender hosts) client-ip=209.132.180.67; Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753173AbaEVQtG (ORCPT + 27 others); Thu, 22 May 2014 12:49:06 -0400 Received: from cam-admin0.cambridge.arm.com ([217.140.96.50]:48916 "EHLO cam-admin0.cambridge.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751081AbaEVQtE (ORCPT ); Thu, 22 May 2014 12:49:04 -0400 Received: from edgewater-inn.cambridge.arm.com (edgewater-inn.cambridge.arm.com [10.1.203.25]) by cam-admin0.cambridge.arm.com (8.12.6/8.12.6) with ESMTP id s4MGlYwo028180; Thu, 22 May 2014 17:47:34 +0100 (BST) Received: by edgewater-inn.cambridge.arm.com (Postfix, from userid 1000) id 71E511AE340C; Thu, 22 May 2014 17:47:34 +0100 (BST) From: Will Deacon To: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Cc: arnd@arndb.de, monstr@monstr.eu, dhowells@redhat.com, broonie@linaro.org, benh@kernel.crashing.org, peterz@infradead.org, paulmck@linux.vnet.ibm.com, Will Deacon , Richard Henderson , Ivan Kokshaysky , Matt Turner Subject: [PATCH v2 05/18] alpha: io: implement relaxed accessor macros for writes Date: Thu, 22 May 2014 17:47:17 +0100 Message-Id: <1400777250-17335-6-git-send-email-will.deacon@arm.com> X-Mailer: git-send-email 1.9.2 In-Reply-To: <1400777250-17335-1-git-send-email-will.deacon@arm.com> References: <1400777250-17335-1-git-send-email-will.deacon@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: list List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Removed-Original-Auth: Dkim didn't pass. X-Original-Sender: will.deacon@arm.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.220.182 as permitted sender) smtp.mail=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , write{b,w,l,q}_relaxed are implemented by some architectures in order to permit memory-mapped I/O writes with weaker barrier semantics than the non-relaxed variants. This patch implements these write macros for Alpha, in the same vein as the relaxed read macros, which are already implemented. Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Signed-off-by: Will Deacon Acked-by: Richard Henderson --- arch/alpha/include/asm/io.h | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h index 5ebab5895edb..f05bdb4b1cb9 100644 --- a/arch/alpha/include/asm/io.h +++ b/arch/alpha/include/asm/io.h @@ -500,10 +500,14 @@ extern inline void writeq(u64 b, volatile void __iomem *addr) #define outb_p outb #define outw_p outw #define outl_p outl -#define readb_relaxed(addr) __raw_readb(addr) -#define readw_relaxed(addr) __raw_readw(addr) -#define readl_relaxed(addr) __raw_readl(addr) -#define readq_relaxed(addr) __raw_readq(addr) +#define readb_relaxed(addr) __raw_readb(addr) +#define readw_relaxed(addr) __raw_readw(addr) +#define readl_relaxed(addr) __raw_readl(addr) +#define readq_relaxed(addr) __raw_readq(addr) +#define writeb_relaxed(b, addr) __raw_writeb(b, addr) +#define writew_relaxed(b, addr) __raw_writew(b, addr) +#define writel_relaxed(b, addr) __raw_writel(b, addr) +#define writeq_relaxed(b, addr) __raw_writeq(b, addr) #define mmiowb()