From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8EEEB2D46A1 for ; Fri, 17 Apr 2026 16:37:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776443822; cv=none; b=DNsoxu+7PQdUp2n1Tvgz1fcaa3PWjBwApOM5HS2lMJVyvA1FT4D2c7aTOsh3N171Ia4iS+wVlhZZ8H/V65fpHnHLALGIToL1qJ6rW8IMM6K6EA2FEtca893OT5Af14mTq0YKjRTUiKtO78PhQvfaSZUuEj80RVG574SKaFGPubw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776443822; c=relaxed/simple; bh=RMcixTISFlhYZCQho5uTHeI1d3sBgL4paWNdoeSkCsY=; h=MIME-Version:Date:From:To:Cc:Message-Id:In-Reply-To:References: Subject:Content-Type; b=h36LIrKBsOXoiq7uRPto2I1nHi6TNEk+sKnYo6XXRZD+/lEjzp4XPkYcJVElWAHnhoyfYTaDkYVO9jtPleQOiBPl9SxY3pQzptmI5BO9zo+S/qL38Ohtyyd0axcvE9W6BbAcz1AbOuJ3ogGJ8YWMBWFuZAnakAgW6ePu6XPQhYQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=APGlZdkE; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="APGlZdkE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D5B70C4AF0B; Fri, 17 Apr 2026 16:37:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776443822; bh=RMcixTISFlhYZCQho5uTHeI1d3sBgL4paWNdoeSkCsY=; h=Date:From:To:Cc:In-Reply-To:References:Subject:From; b=APGlZdkE9SEbfV4fb4SgAtbhKr3GWkreHu/ZL0W+AEw5P2xPhtWBq69rvpnER4ogp ZZFYB22YpqcSJuZxtksozhLmK+ievF0djc4rrgKAJZ9WcEXJG1TK114NXdWnKoBqEe 2WQkDccQftpBXjE9YXuN99bcPQMQQdGQM/mk7BrtzpMERTAnX8vS6QRzisjDim9EDI n1Qw7dDkPg//k2sNtpBmtJ5MAo/4SavOat9aRWu9Tk3cx967waUhsv0yEaLV85CamZ 0UBJKFZNylUVdyKuNoZ5tNwfrls5eQM+0vwS5xFPeADJq/Y9QF9PI38k2FmSVFmOMX AsYdDDtphXEhA== Received: from phl-compute-04.internal (phl-compute-04.internal [10.202.2.44]) by mailfauth.phl.internal (Postfix) with ESMTP id D3560F4006C; Fri, 17 Apr 2026 12:37:00 -0400 (EDT) Received: from phl-imap-02 ([10.202.2.81]) by phl-compute-04.internal (MEProxy); Fri, 17 Apr 2026 12:37:00 -0400 X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefhedrtddtgdehtdefkecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpuffrtefokffrpgfnqfghnecuuegr ihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjug hrpefoggffhffvvefkjghfufgtgfesthejredtredttdenucfhrhhomhepfdetrhhnugcu uegvrhhgmhgrnhhnfdcuoegrrhhnugeskhgvrhhnvghlrdhorhhgqeenucggtffrrghtth gvrhhnpeejjeffteetfeetkeeijedugeeuvdfgfeefiedtudeikeeggeefkefhudfhlefh veenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhgrihhlfhhrohhmpegrrh hnugdomhgvshhmthhprghuthhhphgvrhhsohhnrghlihhthidquddvkeehudejtddvgedq vdekjedttddvieegqdgrrhhnugeppehkvghrnhgvlhdrohhrghesrghrnhgusgdruggvpd hnsggprhgtphhtthhopeeipdhmohguvgepshhmthhpohhuthdprhgtphhtthhopegurghn ihgvlhestdigtdhfrdgtohhmpdhrtghpthhtoheptghhrhhishhtohhphhdrphhlrghtth hnvghrsehgmhigrdgrthdprhgtphhtthhopehgvggvrhhtsehlihhnuhigqdhmieekkhdr ohhrghdprhgtphhtthhopehgvghrgheslhhinhhugidqmheikehkrdhorhhgpdhrtghpth htoheplhhinhhugidqmheikehksehlihhsthhsrdhlihhnuhigqdhmieekkhdrohhrghdp rhgtphhtthhopehlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrgh X-ME-Proxy: Feedback-ID: i36794607:Fastmail Received: by mailuser.phl.internal (Postfix, from userid 501) id A8868700065; Fri, 17 Apr 2026 12:37:00 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ThreadId: AbTBWCF3eo87 Date: Fri, 17 Apr 2026 18:36:20 +0200 From: "Arnd Bergmann" To: "Greg Ungerer" , "Daniel Palmer" Cc: "Geert Uytterhoeven" , christoph.plattner@gmx.at, linux-m68k@lists.linux-m68k.org, linux-kernel@vger.kernel.org Message-Id: In-Reply-To: References: <20260404024658.2496519-1-daniel@0x0f.com> <0ca82015-820d-4002-a65d-0888804db3cc@app.fastmail.com> <25448303-a816-429d-851b-d827fc8f26fb@linux-m68k.org> <4ec2b9f3-8420-4f77-9373-7ae4df83404d@app.fastmail.com> Subject: Re: [RFC PATCH] m68k: nommu: Fix behaviour of io macros on non-CF Content-Type: text/plain Content-Transfer-Encoding: 7bit On Fri, Apr 17, 2026, at 16:11, Greg Ungerer wrote: > > I have some changes I am testing to do a blanket change of the arch > specific code to use newly create IO access functions too. Simple > enough (like your example patch) but of course it does cause of > bit of churn. Sounds good, yes. The hardest part I think is going to be the shared drivers that currently rely on the flipped meaning of readl()/ioread32be() like the regmap. These may need to get an atomic patch that flips around the users at the same time as removing the flipped readl(). Arnd