On Fri, Apr 12, 2013 at 9:44 AM, Jiang Liu <liuj97@xxxxxxxxx> wrote: > PCI, ACPI: remove ACPI PCI subdriver mechanism > > This patch set is directly derived from two sources: > 1) '[PATCH 00/15] PCI/ACPI: Remove "pci_root" sub-driver support' at > https://lkml.org/lkml/2012/12/7/11 from Myron Stowe > The major goal is to resolve any potential sequencing inter-dependencies > by converting sub-driver functionality to being only supported as > statically built-in to the kernel as part of the "pci_root" driver > itself. > > 2) 'introduce PCI bus notifier chain to get rid of the ACPI PCI subdriver' > at http://lwn.net/Articles/533547/ > The major goal is to update PCI slots(pci_slot), ACPI based PCI hotplug > slots(acpiphp), PCIe AER(aer) etc when hot-plugging PCI devices and P2P > bridges, and eventually get rid of the ACPI PCI subdriver interfaces. > > This patchset applies to Bjorn's pci-next branch. Patch 1-4 are minor > fixups for 3.9-rc1. Patch 5-8 introduce two hooks into PCI core which > will be called when creating/destroying PCI buses. Patch 9-12 replace > ACPI PCI subdriver interfaces with the new hook mechanism for pci_slot > and acpiphp. Patch 13 removes the ACPI PCI subdriver interfaces. > > v7->v8: > Hook directly into the PCI core to replace pci_bus notification > Remove ACPI PCI subdriver related code > > v8->v9: > Introduce kernel boot option "acpiphp.disable" to disable the > acpiphp driver. > > Jiang Liu (13): > PCI: do not check is_added flag in pci_remove_bus() > pci: clean up usages of pci_bus->is_added > PCI/acpiphp: don't rely on function 0 in disable_device() > ACPI/acpiphp: replace local macros with standard ACPI macros > PCI: introduce platform dependent hooks for creating/destroying PCI > busses > PCI, ACPI: prepare stub functions to handle ACPI PCI (hotplug) slots > PCI, IA64: implement pcibios_{add|remove}_bus() hooks > PCI, x86: implement pcibios_{add|remove}_bus() hooks > PCI, ACPI: handle PCI slot devices when creating/destroying PCI > busses > PCI/acpiphp: convert acpiphp as a builtin driver > PCI/acpiphp: do not use ACPI PCI subdriver mechanism > PCI/acpiphp: protect acpiphp data structures from concurrent updating > PCI/acpiphp: introduce a kernel option to disable the acpiphp driver > > Myron Stowe (1): > PCI, ACPI: remove support of ACPI PCI subdrivers > > Yijing Wang (2): > PCI/acpiphp: use list_for_each_entry_safe() in acpiphp_sanitize_bus() > PCI/acpiphp: use normal list to simplify implementation > > Documentation/kernel-parameters.txt | 3 + > arch/ia64/pci/pci.c | 11 + > arch/x86/pci/common.c | 11 + > drivers/acpi/pci_root.c | 48 +--- > drivers/acpi/pci_slot.c | 170 ++------------ > drivers/acpi/scan.c | 1 - > drivers/pci/bus.c | 11 +- > drivers/pci/hotplug/Kconfig | 7 +- > drivers/pci/hotplug/acpiphp.h | 13 +- > drivers/pci/hotplug/acpiphp_core.c | 29 +-- > drivers/pci/hotplug/acpiphp_glue.c | 415 ++++++++++++----------------------- > drivers/pci/pci-acpi.c | 30 +++ > drivers/pci/probe.c | 15 +- > drivers/pci/remove.c | 4 +- > include/linux/acpi.h | 9 - > include/linux/pci-acpi.h | 26 +++ > include/linux/pci.h | 2 + > 17 files changed, 280 insertions(+), 525 deletions(-) I applied these to my pci/jiang-subdrivers branch with minor tweaks. The most significant is that I folded in the acpiphp.disable option to the patch that makes the driver builtin-only. That way there's no window between removing the "edit modules.conf" workaround and adding the kernel parameter. Take a look and make sure it's what you want: http://git.kernel.org/cgit/linux/kernel/git/helgaas/pci.git/log/?h=pci/jiang-subdrivers Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
