Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932067AbbDCJbB (ORCPT ); Fri, 3 Apr 2015 05:31:01 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:32240 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752683AbbDCJ3P (ORCPT ); Fri, 3 Apr 2015 05:29:15 -0400 From: Yijing Wang To: Bjorn Helgaas CC: Jiang Liu , , Yinghai Lu , , Marc Zyngier , , Russell King , , , Thomas Gleixner , Benjamin Herrenschmidt , Rusty Russell , Tony Luck , , "David S. Miller" , "Guan Xuetao" , , , Liviu Dudau , "Arnd Bergmann" , Geert Uytterhoeven , "Yijing Wang" Subject: [PATCH v9 00/30] Refine PCI scan interfaces and make generic pci host bridge Date: Fri, 3 Apr 2015 17:25:33 +0800 Message-ID: <1428053164-28277-1-git-send-email-wangyijing@huawei.com> X-Mailer: git-send-email 1.7.1 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.175.100.166] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7271 Lines: 164 v8->v9: Add Thierry's Acked-by and Tested-by. Fix the building error for powerpc found by Daniel. Change pci_host_assign_domain_nr() to static. v7->v8: Fix some cross building errors found by kbuild test. Drop the rename patch for find_pci_host_bridge(). v6->v7: Drop previous patch which combined the domain and bus in one argument. Make the pci_host_bridge hold the default busn resource, so we could check whether new host busn resource is conflict with existing ones. Move pci_host_assign_domain_nr() to drivers/pci/host-bridge.c Other changes suggested by Bjorn and Suravee. v5->v6: Fix cross building errors found by kbuild test. Export busn_resource to Xen pcifront driver. v4->v5: Fix some code style issues and rename some functions suggested by Bjorn. Fix some code flaw(Eg. call pci_bus_add_devices() before resources claim or lack the return checking). v3->v4: Fix the rebase issue. v2->v3: Rebase this series on v4.0-rc1. v1->v2: Split pci_host_bridge_list into a new patch, remove .phb_probe_mode and rework powerpc .phb_of_scan_bus() for simpilicty suggested by Arnd. Refresh some patch description log, and add a new patch to fix build warning in ia64. This series is based on Bjorn's pci/enumeration branch. You could pull it from https://github.com/YijingWang/linux-pci.git enumer9 Now in kernel, we scan pci bus use the following ways: 1. pci_scan_bus. parent = NULL, default io/mem/bus resources call pci_bus_add_devices() 2. pci_scan_bus_parented() + pci_bus_add_devices() default io/mem/bus resources, only used by xen 3. pci_scan_root_bus() + pci_bus_add_devices() 4. pci_create_root_bus() + pci_scan_child_bus() + pci_bus_add_devices() 5. pci_create_root_bus() + xx_of_scan_bus() + pci_bus_add_devices() And we have a lot of arch specific pci_domain_nr() and other platform specific weak function like pcibios_root_bridge_prepare(). After applied this series, we have following scan interfaces: 1. pci_scan_bus() parent = NULL, default io/mem/bus resources. for legacy pci scan 2. pci_scan_root_bus() for callers provide its own parent and io/mem/bus resources but no platform specific pci_host_bridge operations 3. pci_scan_host_bridge() for callers provide its own parent and io/mem/bus resources Arnd Bergmann (1): xen/PCI: Don't use deprecated function pci_scan_bus_parented() Yijing Wang (29): PCI: Remove deprecated pci_scan_bus_parented() PCI: Save domain in pci_host_bridge PCI: Move pci_bus_assign_domain_nr() declaration into drivers/pci/pci.h PCI: Introduce pci_host_assign_domain_nr() to assign domain PCI: Separate pci_host_bridge creation out of pci_create_root_bus() PCI: Add default bus resource in pci_host_bridge PCI: Update pci_host_bridge bus resource PCI: Introduce pci_host_first_busnr() function PCI: Introduce pci_host_bridge_list to manage host bridges PCI: Save sysdata in pci_host_bridge drvdata powerpc/PCI: Rename pcibios_root_bridge_prepare() to pcibios_set_root_bus_speed() PCI: Move pcibios_root_bridge_prepare() to pci_create_host_bridge() PCI: Introduce pci_host_bridge_ops to support host specific operations PCI: Introduce new scan function pci_scan_host_bridge() PCI: Introduce pci_bus_child_max_busnr() x86/PCI: Refine pci_acpi_scan_root() with generic pci_host_bridge ia64/PCI: Refine pci_acpi_scan_root() with generic pci_host_bridge powerpc/pci: Use pci_scan_host_bridge() for simplicity PCI: Remove pcibios_root_bridge_prepare() and pcibos_set_root_bus_speed() sparc/PCI: Use pci_scan_host_bridge() for simplicity parisc/PCI: Use pci_scan_root_bus() for simplicity PCI/mvebu: Use pci_common_init_dev() to simplify code PCI/tegra: Remove redundant tegra_pcie_scan_bus() PCI/designware: Use pci_scan_root_bus() for simplicity PCI/xgene: Use pci_scan_root_bus() instead of pci_create_root_bus() PCI: Rename __pci_create_root_bus() to pci_create_root_bus() PCI: Remove platform specific pci_domain_nr() PCI: Remove pci_bus_assign_domain_nr() PCI: Clean up CONFIG_PCI_DOMAINS_GENERIC arch/alpha/include/asm/pci.h | 2 - arch/alpha/kernel/pci.c | 4 +- arch/alpha/kernel/sys_nautilus.c | 2 +- arch/arm/Kconfig | 3 - arch/arm/kernel/bios32.c | 2 +- arch/arm/mach-dove/pcie.c | 2 +- arch/arm/mach-iop13xx/pci.c | 4 +- arch/arm/mach-mv78xx0/pcie.c | 2 +- arch/arm/mach-orion5x/pci.c | 4 +- arch/arm64/Kconfig | 3 - arch/frv/mb93090-mb00/pci-vdk.c | 3 +- arch/ia64/include/asm/pci.h | 1 - arch/ia64/pci/pci.c | 34 +++-- arch/ia64/sn/kernel/io_init.c | 4 +- arch/m68k/coldfire/pci.c | 2 +- arch/microblaze/pci/pci-common.c | 15 +-- arch/mips/include/asm/pci.h | 2 - arch/mips/pci/pci.c | 4 +- arch/mn10300/unit-asb2305/pci.c | 3 +- arch/powerpc/include/asm/machdep.h | 2 +- arch/powerpc/kernel/pci-common.c | 79 ++++++------ arch/powerpc/platforms/pseries/pci.c | 8 +- arch/powerpc/platforms/pseries/pseries.h | 2 +- arch/powerpc/platforms/pseries/setup.c | 2 +- arch/s390/pci/pci.c | 10 +- arch/sh/drivers/pci/pci.c | 4 +- arch/sh/include/asm/pci.h | 2 - arch/sparc/kernel/leon_pci.c | 2 +- arch/sparc/kernel/pci.c | 45 +++---- arch/sparc/kernel/pcic.c | 2 +- arch/tile/include/asm/pci.h | 2 - arch/tile/kernel/pci.c | 4 +- arch/tile/kernel/pci_gx.c | 4 +- arch/unicore32/kernel/pci.c | 2 +- arch/x86/include/asm/pci.h | 6 - arch/x86/pci/acpi.c | 37 +++--- arch/x86/pci/common.c | 2 +- arch/xtensa/kernel/pci.c | 2 +- drivers/parisc/dino.c | 6 +- drivers/parisc/lba_pci.c | 4 +- drivers/pci/host-bridge.c | 202 ++++++++++++++++++++++++++++ drivers/pci/host/pci-mvebu.c | 18 +--- drivers/pci/host/pci-tegra.c | 16 --- drivers/pci/host/pci-versatile.c | 3 +- drivers/pci/host/pci-xgene.c | 3 +- drivers/pci/host/pcie-designware.c | 4 +- drivers/pci/host/pcie-xilinx.c | 2 +- drivers/pci/hotplug/acpiphp_glue.c | 29 +---- drivers/pci/hotplug/ibmphp_core.c | 2 +- drivers/pci/pci.c | 85 ++++--------- drivers/pci/pci.h | 15 ++ drivers/pci/probe.c | 212 ++++++++++++------------------ drivers/pci/xen-pcifront.c | 16 ++- include/linux/pci.h | 46 +++---- 54 files changed, 517 insertions(+), 459 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/