From patchwork Fri Feb 28 13:08:32 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Liviu Dudau X-Patchwork-Id: 3740951 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 EB3DA9F35F for ; Fri, 28 Feb 2014 13:11:24 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 314F7202A1 for ; Fri, 28 Feb 2014 13:11:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4BB802028D for ; Fri, 28 Feb 2014 13:11:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751971AbaB1NLA (ORCPT ); Fri, 28 Feb 2014 08:11:00 -0500 Received: from fw-tnat.cambridge.arm.com ([217.140.96.21]:53627 "EHLO cam-smtp0.cambridge.arm.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751581AbaB1NJC (ORCPT ); Fri, 28 Feb 2014 08:09:02 -0500 Received: from e106497-lin.cambridge.arm.com (e106497-lin.cambridge.arm.com [10.1.195.170]) by cam-smtp0.cambridge.arm.com (8.13.8/8.13.8) with ESMTP id s1SD8Xds023082; Fri, 28 Feb 2014 13:08:33 GMT From: Liviu Dudau To: linux-pci , Bjorn Helgaas , Catalin Marinas , Will Deacon , linaro-kernel Cc: Benjamin Herrenschmidt , LKML , "devicetree@vger.kernel.org" , LAKML Subject: [PATCH v3 2/3] arm64: Extend the PCI I/O space to 16MB Date: Fri, 28 Feb 2014 13:08:32 +0000 Message-Id: <1393592913-24796-3-git-send-email-Liviu.Dudau@arm.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1393592913-24796-1-git-send-email-Liviu.Dudau@arm.com> References: <1393592913-24796-1-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=-6.9 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 From: Catalin Marinas The patch moves the PCI I/O space (currently at 64K) before the earlyprintk mapping and extends it to 16MB. Signed-off-by: Catalin Marinas diff --git a/Documentation/arm64/memory.txt b/Documentation/arm64/memory.txt index 5e054bf..85e24c4 100644 --- a/Documentation/arm64/memory.txt +++ b/Documentation/arm64/memory.txt @@ -35,11 +35,13 @@ ffffffbc00000000 ffffffbdffffffff 8GB vmemmap ffffffbe00000000 ffffffbffbbfffff ~8GB [guard, future vmmemap] -ffffffbffbc00000 ffffffbffbdfffff 2MB earlyprintk device +ffffffbffa000000 ffffffbffaffffff 16MB PCI I/O space + +ffffffbffb000000 ffffffbffbbfffff 12MB [guard] -ffffffbffbe00000 ffffffbffbe0ffff 64KB PCI I/O space +ffffffbffbc00000 ffffffbffbdfffff 2MB earlyprintk device -ffffffbffbe10000 ffffffbcffffffff ~2MB [guard] +ffffffbffbe00000 ffffffbffbffffff 2MB [guard] ffffffbffc000000 ffffffbfffffffff 64MB modules @@ -60,11 +62,13 @@ fffffdfc00000000 fffffdfdffffffff 8GB vmemmap fffffdfe00000000 fffffdfffbbfffff ~8GB [guard, future vmmemap] -fffffdfffbc00000 fffffdfffbdfffff 2MB earlyprintk device +fffffdfffa000000 fffffdfffaffffff 16MB PCI I/O space + +fffffdfffb000000 fffffdfffbbfffff 12MB [guard] -fffffdfffbe00000 fffffdfffbe0ffff 64KB PCI I/O space +fffffdfffbc00000 fffffdfffbdfffff 2MB earlyprintk device -fffffdfffbe10000 fffffdfffbffffff ~2MB [guard] +fffffdfffbe00000 fffffdfffbffffff 2MB [guard] fffffdfffc000000 fffffdffffffffff 64MB modules diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index 4cc813e..7846a6b 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -121,7 +121,7 @@ static inline u64 __raw_readq(const volatile void __iomem *addr) * I/O port access primitives. */ #define IO_SPACE_LIMIT 0xffff -#define PCI_IOBASE ((void __iomem *)(MODULES_VADDR - SZ_2M)) +#define PCI_IOBASE ((void __iomem *)(MODULES_VADDR - SZ_32M)) static inline u8 inb(unsigned long addr) {