From patchwork Fri Jan 15 16:58:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: John Garry X-Patchwork-Id: 1427164 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4DHSH03gXSz9sWp for ; Sat, 16 Jan 2021 04:05:16 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728095AbhAOREq (ORCPT ); Fri, 15 Jan 2021 12:04:46 -0500 Received: from szxga05-in.huawei.com ([45.249.212.191]:11546 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727808AbhAOREp (ORCPT ); Fri, 15 Jan 2021 12:04:45 -0500 Received: from DGGEMS405-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga05-in.huawei.com (SkyGuard) with ESMTP id 4DHSCy3tRQzMKdS; Sat, 16 Jan 2021 01:02:38 +0800 (CST) Received: from localhost.localdomain (10.69.192.58) by DGGEMS405-HUB.china.huawei.com (10.3.19.205) with Microsoft SMTP Server id 14.3.498.0; Sat, 16 Jan 2021 01:03:47 +0800 From: John Garry To: , , , , , , , , CC: , , , , , , John Garry Subject: [PATCH RFC 2/4] asm-generic/io.h: Add IO_SPACE_BASE Date: Sat, 16 Jan 2021 00:58:47 +0800 Message-ID: <1610729929-188490-3-git-send-email-john.garry@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1610729929-188490-1-git-send-email-john.garry@huawei.com> References: <1610729929-188490-1-git-send-email-john.garry@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.58] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Add a fallback default for IO_SPACE_BASE (at 0) for when an architecture does not define a value. Signed-off-by: John Garry --- include/asm-generic/io.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index 9ea83d80eb6f..4d74a0c696ca 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -448,6 +448,10 @@ static inline void writesq(volatile void __iomem *addr, const void *buffer, #define IO_SPACE_LIMIT 0xffff #endif +#ifndef IO_SPACE_BASE +#define IO_SPACE_BASE 0x0 +#endif + /* * {in,out}{b,w,l}() access little endian I/O. {in,out}{b,w,l}_p() can be * implemented on hardware that needs an additional delay for I/O accesses to