From patchwork Thu Feb 25 02:12:42 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinghai Lu X-Patchwork-Id: 8416141 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 7AEB5C0553 for ; Thu, 25 Feb 2016 02:14:58 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7685A202F0 for ; Thu, 25 Feb 2016 02:14:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4DF6620274 for ; Thu, 25 Feb 2016 02:14:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759277AbcBYCOX (ORCPT ); Wed, 24 Feb 2016 21:14:23 -0500 Received: from aserp1040.oracle.com ([141.146.126.69]:38489 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759240AbcBYCOR (ORCPT ); Wed, 24 Feb 2016 21:14:17 -0500 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id u1P2Dbp4019229 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 25 Feb 2016 02:13:37 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id u1P2DZ96016434 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=FAIL); Thu, 25 Feb 2016 02:13:35 GMT Received: from abhmp0017.oracle.com (abhmp0017.oracle.com [141.146.116.23]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id u1P2DYGs014140; Thu, 25 Feb 2016 02:13:34 GMT Received: from userv0022.oracle.com (/10.132.126.176) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 24 Feb 2016 18:13:34 -0800 From: Yinghai Lu To: Bjorn Helgaas , David Miller , Benjamin Herrenschmidt , Wei Yang , TJ , Yijing Wang , Khalid Aziz Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Yinghai Lu , Michal Simek , Paul Mackerras , Michael Ellerman , Arnd Bergmann , linuxppc-dev@lists.ozlabs.org, linux-arch@vger.kernel.org Subject: [PATCH v10 51/59] PCI: Unify skip_ioresource_align() Date: Wed, 24 Feb 2016 18:12:42 -0800 Message-Id: <1456366370-28995-52-git-send-email-yinghai@kernel.org> X-Mailer: git-send-email 1.8.4.5 In-Reply-To: <1456366370-28995-1-git-send-email-yinghai@kernel.org> References: <1456366370-28995-1-git-send-email-yinghai@kernel.org> X-Source-IP: aserv0021.oracle.com [141.146.126.233] 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 There are powerpc generic version and x86 local version for skip_ioresource_align(). Move the powerpc version to setup-bus.c, and kill x86 local version. Also kill dummy version in microblaze. Cc: Michal Simek Cc: Paul Mackerras Cc: Michael Ellerman Cc: Arnd Bergmann Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-arch@vger.kernel.org Signed-off-by: Yinghai Lu Reviewed-by: Thomas Gleixner Acked-by: Michael Ellerman --- arch/microblaze/pci/pci-common.c | 8 -------- arch/powerpc/kernel/pci-common.c | 11 +---------- arch/x86/include/asm/pci_x86.h | 1 - arch/x86/pci/common.c | 4 ++-- arch/x86/pci/i386.c | 11 +---------- drivers/pci/setup-bus.c | 9 +++++++++ include/linux/pci.h | 2 ++ 7 files changed, 15 insertions(+), 31 deletions(-) diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c index ae838ed..09b1af6 100644 --- a/arch/microblaze/pci/pci-common.c +++ b/arch/microblaze/pci/pci-common.c @@ -878,11 +878,6 @@ void pcibios_fixup_bus(struct pci_bus *bus) } EXPORT_SYMBOL(pcibios_fixup_bus); -static int skip_isa_ioresource_align(struct pci_dev *dev) -{ - return 0; -} - /* * We need to avoid collisions with `mirrored' VGA ports * and other strange ISA hardware, so we always want the @@ -899,12 +894,9 @@ static int skip_isa_ioresource_align(struct pci_dev *dev) resource_size_t pcibios_align_resource(void *data, const struct resource *res, resource_size_t size, resource_size_t align) { - struct pci_dev *dev = data; resource_size_t start = res->start; if (res->flags & IORESOURCE_IO) { - if (skip_isa_ioresource_align(dev)) - return start; if (start & 0x300) start = (start + 0x3ff) & ~0x3ff; } diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 0f7a60f..2a7f4fd 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1053,15 +1053,6 @@ void pci_fixup_cardbus(struct pci_bus *bus) pcibios_setup_bus_devices(bus); } - -static int skip_isa_ioresource_align(struct pci_dev *dev) -{ - if (pci_has_flag(PCI_CAN_SKIP_ISA_ALIGN) && - !(dev->bus->bridge_ctl & PCI_BRIDGE_CTL_ISA)) - return 1; - return 0; -} - /* * We need to avoid collisions with `mirrored' VGA ports * and other strange ISA hardware, so we always want the @@ -1082,7 +1073,7 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res, resource_size_t start = res->start; if (res->flags & IORESOURCE_IO) { - if (skip_isa_ioresource_align(dev)) + if (skip_isa_ioresource_align(dev->bus)) return start; if (start & 0x300) start = (start + 0x3ff) & ~0x3ff; diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h index 46873fb..3f9ba17 100644 --- a/arch/x86/include/asm/pci_x86.h +++ b/arch/x86/include/asm/pci_x86.h @@ -28,7 +28,6 @@ do { \ #define PCI_ASSIGN_ROMS 0x1000 #define PCI_BIOS_IRQ_SCAN 0x2000 #define PCI_ASSIGN_ALL_BUSSES 0x4000 -#define PCI_CAN_SKIP_ISA_ALIGN 0x8000 #define PCI_USE__CRS 0x10000 #define PCI_CHECK_ENABLE_AMD_MMCONF 0x20000 #define PCI_HAS_IO_ECS 0x40000 diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c index 2879efc..77a450e 100644 --- a/arch/x86/pci/common.c +++ b/arch/x86/pci/common.c @@ -83,7 +83,7 @@ DEFINE_RAW_SPINLOCK(pci_config_lock); static int __init can_skip_ioresource_align(const struct dmi_system_id *d) { - pci_probe |= PCI_CAN_SKIP_ISA_ALIGN; + pci_add_flags(PCI_CAN_SKIP_ISA_ALIGN); printk(KERN_INFO "PCI: %s detected, can skip ISA alignment\n", d->ident); return 0; } @@ -619,7 +619,7 @@ char *__init pcibios_setup(char *str) pci_routeirq = 1; return NULL; } else if (!strcmp(str, "skip_isa_align")) { - pci_probe |= PCI_CAN_SKIP_ISA_ALIGN; + pci_add_flags(PCI_CAN_SKIP_ISA_ALIGN); return NULL; } else if (!strcmp(str, "noioapicquirk")) { noioapicquirk = 1; diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index 0a9f2ca..cf296f5 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -128,15 +128,6 @@ static void __init pcibios_fw_addr_list_del(void) pcibios_fw_addr_done = true; } -static int -skip_isa_ioresource_align(struct pci_dev *dev) { - - if ((pci_probe & PCI_CAN_SKIP_ISA_ALIGN) && - !(dev->bus->bridge_ctl & PCI_BRIDGE_CTL_ISA)) - return 1; - return 0; -} - /* * We need to avoid collisions with `mirrored' VGA ports * and other strange ISA hardware, so we always want the @@ -158,7 +149,7 @@ pcibios_align_resource(void *data, const struct resource *res, resource_size_t start = res->start; if (res->flags & IORESOURCE_IO) { - if (skip_isa_ioresource_align(dev)) + if (skip_isa_ioresource_align(dev->bus)) return start; if (start & 0x300) start = (start + 0x3ff) & ~0x3ff; diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c index 4c595c5..530fa9b 100644 --- a/drivers/pci/setup-bus.c +++ b/drivers/pci/setup-bus.c @@ -1151,6 +1151,15 @@ static resource_size_t window_alignment(struct pci_bus *bus, return max(align, arch_align); } +int skip_isa_ioresource_align(struct pci_bus *bus) +{ + if (pci_has_flag(PCI_CAN_SKIP_ISA_ALIGN) && + !(bus->bridge_ctl & PCI_BRIDGE_CTL_ISA)) + return 1; + + return 0; +} + static resource_size_t size_aligned_for_isa(resource_size_t size) { /* diff --git a/include/linux/pci.h b/include/linux/pci.h index d4592e3..6687346 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -751,6 +751,8 @@ struct pci_driver { /* these external functions are only available when PCI support is enabled */ #ifdef CONFIG_PCI +int skip_isa_ioresource_align(struct pci_bus *bus); + void pcie_bus_configure_settings(struct pci_bus *bus); enum pcie_bus_config_types {