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 X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76E19ECE599 for ; Wed, 16 Oct 2019 21:20:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 59987218DE for ; Wed, 16 Oct 2019 21:20:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388949AbfJPVUv (ORCPT ); Wed, 16 Oct 2019 17:20:51 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:54612 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729231AbfJPVUu (ORCPT ); Wed, 16 Oct 2019 17:20:50 -0400 Received: from localhost (unknown [IPv6:2601:601:9f00:1e2::d71]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 41E8F144A067F; Wed, 16 Oct 2019 14:20:47 -0700 (PDT) Date: Wed, 16 Oct 2019 14:20:44 -0700 (PDT) Message-Id: <20191016.142044.1532379900574948137.davem@davemloft.net> To: ztuowen@gmail.com Cc: lee.jones@linaro.org, linux-kernel@vger.kernel.org, andriy.shevchenko@linux.intel.com, mika.westerberg@linux.intel.com, acelan.kao@canonical.com, mcgrof@kernel.org, lkp@intel.com Subject: Re: [PATCH v5 1/4] sparc64: implement ioremap_uc From: David Miller In-Reply-To: <20191016210629.1005086-2-ztuowen@gmail.com> References: <20191016210629.1005086-1-ztuowen@gmail.com> <20191016210629.1005086-2-ztuowen@gmail.com> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Wed, 16 Oct 2019 14:20:47 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Tuowen Zhao Date: Wed, 16 Oct 2019 15:06:27 -0600 > On sparc64, the whole physical IO address space is accessible using > physically addressed loads and stores. *_uc does nothing like the > others. > > Cc: > Reported-by: kbuild test robot > Signed-off-by: Tuowen Zhao Acked-by: David S. Miller