From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753068AbbDGE25 (ORCPT ); Tue, 7 Apr 2015 00:28:57 -0400 Received: from mga14.intel.com ([192.55.52.115]:23638 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752902AbbDGE2w (ORCPT ); Tue, 7 Apr 2015 00:28:52 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,536,1422950400"; d="scan'208";a="477525891" From: Jiang Liu To: "Rafael J . Wysocki" , Bjorn Helgaas Cc: Jiang Liu , Lv Zheng , LKML , linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, "x86 @ kernel . org" Subject: [RFC 0/7] Consolidate common ACPI PCI host bridge code into ACPI core Date: Tue, 7 Apr 2015 12:31:05 +0800 Message-Id: <1428381072-27486-1-git-send-email-jiang.liu@linux.intel.com> X-Mailer: git-send-email 1.7.10.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As suggested by Bjorn, this patch set consolidates common ACPI PCI host bridge code from x86 and IA64 into ACPI core. It may also help to support ACPI PCI host bridge on ARM64 platfrom too in future. It introduces struct acpi_pci_root_ops and acpi_pci_root_create(). Arch code only needs to implement struct acpi_pci_root_ops and then invoke acpi_pci_root_create() to parse ACPI resources and create PCI root bus. struct acpi_pci_root_info_common { struct pci_controller controller; struct acpi_pci_root *root; struct acpi_device *bridge; struct acpi_pci_root_ops *ops; struct list_head resources; char name[16]; }; struct acpi_pci_root_ops { struct pci_ops *pci_ops; int (*init_info)(struct acpi_pci_root_info_common *info); void (*release_info)(struct acpi_pci_root_info_common *info); int (*prepare_resources)(struct acpi_pci_root_info_common *info, int status); }; extern struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root, struct acpi_pci_root_ops *ops, size_t extra_size); It passes Fengguang's 0day test suite and has been tested on 1) An Intel x86 4 socket platform 2) An Intel IA64 SDV 3) An HP IA64 platform And you may access it at: https://github.com/jiangliu/linux.git acpi_pci_root_v1 Thanks! Gerry Jiang Liu (7): ACPI/PCI: Enhance ACPI core to support sparse IO space ia64/PCI/ACPI: Use common ACPI resource parsing interface for host bridge ia64/PCI: Use common struct resource_entry to replace struct iospace_resource x86/PCI: Rename struct pci_sysdata as struct pci_controller PCI/ACPI: Consolidate common PCI host bridge code into ACPI core x86/PCI/ACPI: Use common interface to support PCI host bridge ia64/PCI/ACPI: Use common interface to support PCI host bridge arch/ia64/include/asm/pci.h | 5 - arch/ia64/pci/pci.c | 360 ++++++++++------------------------------- arch/x86/include/asm/pci.h | 12 +- arch/x86/include/asm/pci_64.h | 4 +- arch/x86/pci/acpi.c | 283 +++++++++----------------------- arch/x86/pci/common.c | 2 +- drivers/acpi/pci_root.c | 215 ++++++++++++++++++++++++ drivers/acpi/resource.c | 9 +- include/linux/ioport.h | 1 + include/linux/pci-acpi.h | 24 +++ 10 files changed, 409 insertions(+), 506 deletions(-) -- 1.7.10.4