From patchwork Tue Aug 12 16:25:14 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liviu Dudau X-Patchwork-Id: 4713671 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 33B459F319 for ; Tue, 12 Aug 2014 16:28:20 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6455A20160 for ; Tue, 12 Aug 2014 16:28:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7EEB420148 for ; Tue, 12 Aug 2014 16:28:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753913AbaHLQ05 (ORCPT ); Tue, 12 Aug 2014 12:26:57 -0400 Received: from fw-tnat.cambridge.arm.com ([217.140.96.21]:54727 "EHLO cam-smtp0.cambridge.arm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753387AbaHLQ0v (ORCPT ); Tue, 12 Aug 2014 12:26:51 -0400 Received: from e106497-lin.cambridge.arm.com (e106497-lin.cambridge.arm.com [10.1.195.53]) by cam-smtp0.cambridge.arm.com (8.13.8/8.13.8) with ESMTP id s7CGPPgV026280; Tue, 12 Aug 2014 17:25:27 +0100 From: Liviu Dudau To: Bjorn Helgaas , Catalin Marinas , Will Deacon , Benjamin Herrenschmidt , Arnd Bergmann , Russell King , Tanmay Inamdar , Grant Likely , Sinan Kaya , Jingoo Han , Kukjin Kim , Suravee Suthikulanit , linux-pci Cc: linux-arch , LKML , Device Tree ML , LAKML Subject: [PATCH v9 01/12] Fix ioport_map() for !CONFIG_GENERIC_IOMAP cases. Date: Tue, 12 Aug 2014 17:25:14 +0100 Message-Id: <1407860725-25202-2-git-send-email-Liviu.Dudau@arm.com> X-Mailer: git-send-email 2.0.4 In-Reply-To: <1407860725-25202-1-git-send-email-Liviu.Dudau@arm.com> References: <1407860725-25202-1-git-send-email-Liviu.Dudau@arm.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The inline version of ioport_map() that gets used when !CONFIG_GENERIC_IOMAP is wrong. It returns a mapped (i.e. virtual) address that can start from zero and completely ignores the PCI_IOBASE and IO_SPACE_LIMIT that most architectures that use !CONFIG_GENERIC_MAP define. Signed-off-by: Liviu Dudau Acked-by: Arnd Bergmann Tested-by: Tanmay Inamdar --- include/asm-generic/io.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index 975e1cc..2e2161b 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -331,7 +331,7 @@ static inline void iounmap(void __iomem *addr) #ifndef CONFIG_GENERIC_IOMAP static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) { - return (void __iomem *) port; + return (void __iomem *)(PCI_IOBASE + (port & IO_SPACE_LIMIT)); } static inline void ioport_unmap(void __iomem *p)