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Subject[Patch v5 0/6] Consolidate ACPI PCI root common code into ACPI core
This patch set consolidates common code to support ACPI PCI root on x86
and IA64 platforms into ACPI core, to reproduce duplicated code and
simplify maintenance. And a patch set based on previous version to support
ACPI based PCIe host bridge on ARM64 has been posted at:

It's based on latest mainstream kernel. It passes Fengguang's 0day test
suite and has been tested on two IA64 platforms and one x86 platform.

1) As suggested by Lorenzo Pieralisi <>, do not
introduce "struct pci_controller" into generic drivers/acpi/pci_root.c,
so ARM64 doesn't need to define a useless structure. And it simplifies
code a little too.

1) Add patch[05/08] support solve building issue on ARM64
2) Solve an implicitly pointer cast issue.
3) Rebase to latest mainstream kernel

1. Move memory allocation/free from ACPI core into arch
2. Kill the field 'segment' in struct pci_root_info on x86


Jiang Liu (6):
ACPI/PCI: Enhance ACPI core to support sparse IO space
ia64/PCI/ACPI: Use common ACPI resource parsing interface for host
ia64/PCI: Use common struct resource_entry to replace struct
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 | 366 ++++++++++++-------------------------------
arch/x86/pci/acpi.c | 294 ++++++++++------------------------
drivers/acpi/pci_root.c | 198 +++++++++++++++++++++++
drivers/acpi/resource.c | 9 +-
include/linux/ioport.h | 1 +
include/linux/pci-acpi.h | 23 +++
7 files changed, 415 insertions(+), 481 deletions(-)


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