Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753662AbdFVVKj (ORCPT ); Thu, 22 Jun 2017 17:10:39 -0400 Received: from ale.deltatee.com ([207.54.116.67]:54887 "EHLO ale.deltatee.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751221AbdFVVKf (ORCPT ); Thu, 22 Jun 2017 17:10:35 -0400 To: Arnd Bergmann References: <20170622164817.25515-1-logang@deltatee.com> <20170622164817.25515-5-logang@deltatee.com> <20170622210828.27304f6a@alans-desktop> <401cdb64-6fdb-be30-b8bc-bf51c1a35074@deltatee.com> Cc: Alan Cox , Linux Kernel Mailing List , linux-arch , linux-ntb@googlegroups.com, linux-alpha@vger.kernel.org, linuxppc-dev , linux-crypto@vger.kernel.org, dri-devel , Greg Kroah-Hartman , Stephen Bates , Richard Henderson , Ivan Kokshaysky , Matt Turner From: Logan Gunthorpe Message-ID: <3ae2d934-1054-cdd1-7eaa-e9758276cf51@deltatee.com> Date: Thu, 22 Jun 2017 15:10:20 -0600 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.6.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-SA-Exim-Connect-IP: 172.16.1.111 X-SA-Exim-Rcpt-To: mattst88@gmail.com, ink@jurassic.park.msu.ru, rth@twiddle.net, sbates@raithlin.com, gregkh@linuxfoundation.org, dri-devel@lists.freedesktop.org, linux-crypto@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-alpha@vger.kernel.org, linux-ntb@googlegroups.com, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, gnomes@lxorguk.ukuu.org.uk, arnd@arndb.de X-SA-Exim-Mail-From: logang@deltatee.com Subject: Re: [PATCH 4/7] alpha: provide ioread64 and iowrite64 implementations X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on ale.deltatee.com) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 564 Lines: 15 On 6/22/2017 3:03 PM, Arnd Bergmann wrote: > Drivers that want a non-atomic variant should include either > include/linux/io-64-nonatomic-hi-lo.h or include/linux/io-64-nonatomic-lo-hi.h > depending on what they need. Drivers that require 64-bit I/O should > probably just depend on CONFIG_64BIT and maybe use readq/writeq. Ok, I will work something like that up. We'll still need a patch similar to patch 2 (less the non-atomic versions) seeing even CONFIG_GENERIC_IOMAP arches don't actually have a working ioread64/iowrite64 implementation. Thanks, Logan