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Subject[PATCH -v8 0/23] PCI: allocate pci bus num range for unassigned bridge busn
On Mon, Feb 27, 2012 at 6:09 PM, Yinghai Lu <> wrote:
> Set up iobusn_resource tree, and register bus number range to it.
> Later when need to find bus range, will try to allocate from the tree
> Need to test on arches other than x86. esp for ia64 and powerpc that support
>  more than on peer root buses.

could be found at:

update to v9, and will pass bus resource through resources list.

will not send to the LKML, please check for-pci-busn-alloc branch.

or you can browse them from;a=shortlog;h=refs/heads/for-pci-busn-alloc

4d92227: PCI, pciehp: Remove not needed bus number range checking
edccefd: PCI: Double checking setting for bus register and bus struct.
d1d6372: pcmcia: remove workaround for fixing pci parent bus subordinate
5bb9418: PCI: Seperate child bus scanning to two passes overall
d0fd5ac: PCI: kill pci_fixup_parent_subordinate_busnr()
b86867f: PCI: Allocate bus range instead of use max blindly
8d0fbe4: PCI: Strict checking of valid range for bridge
8c26011: PCI: Probe safe range that we can use for unassigned bridge.
a7b217b: PCI: Add pci_bus_extend/shrink_top()
d8f54cd: PCI, parisc: Register busn_res for root buses
e02e198: PCI, powerpc: Register busn_res for root buses
d10c14b: PCI, sparc: Register busn_res for root buses
4977b59: PCI, ia64: Register busn_res for root buses
d169b44: x86, PCI: put busn resource in pci_root_info for no_crs path
c77a824: x86, PCI: put busn resource in pci_root_info for acpi path
1909435: PCI: add default res for pci_scan_bus
948a438: PCI: default busn_resource
5e2711b: PCI: checking busn_res in pci_scan_root_bus
c10e4a1: PCI: insert busn_res in pci_create_root_bus
fc176a9: PCI: release busn when removing bus
0eae1b6: PCI: Add busn_res operation functions
1e6215a: PCI: Add busn_res into struct pci_bus.
1f1fd3e: x86, PCI: Merge pcibios_scan_root and pci_scan_bus_on_node

> need to apply to top of pci/for-linus plus pci/linux-next plus
>        [PATCH -v2] PCI: pci_host_bridge related cleanup
> -v2: according to Jesse, split to more small patches.
> -v3: address some request from Bjorn. like make use %pR for busn_res debug print
>        out, and move the comment change with code change.
> -v4: fixes the problem about rescan that Bjorn found.
> -v5: add /proc/iobusn that is requested by Bjorn.
>     remove old workaround from pciehp.
>     add rescan_bridge for pci bridge in /sys
> -v6: remove global iobusn_resource, and every root bus's busn_res will be root
>     of children buses' busn_res.
>     pc cardbus change is tested by pcmcia maintainter.
> -v7: remove pci_scan_root_bus_max requested by Bjorn and Jesse.
> -v8: rebase on top other patches with arch/x86/pci/bus_numa.c changes
>     also only include busn_res related changes.

arch/ia64/include/asm/pci.h | 1 +
arch/ia64/pci/pci.c | 5 +
arch/powerpc/include/asm/pci-bridge.h | 1 +
arch/powerpc/kernel/pci-common.c | 10 +-
arch/sparc/kernel/pci.c | 4 +
arch/sparc/kernel/pci_impl.h | 1 +
arch/x86/pci/acpi.c | 12 +-
arch/x86/pci/broadcom_bus.c | 4 +-
arch/x86/pci/bus_numa.c | 19 +-
arch/x86/pci/bus_numa.h | 3 +-
arch/x86/pci/common.c | 27 +--
drivers/parisc/dino.c | 5 +
drivers/parisc/lba_pci.c | 3 +
drivers/pci/hotplug/pciehp_pci.c | 12 +-
drivers/pci/probe.c | 458 +++++++++++++++++++++++++++------
drivers/pci/remove.c | 1 +
drivers/pcmcia/yenta_socket.c | 75 ------
include/linux/pci.h | 6 +
18 files changed, 441 insertions(+), 206 deletions(-)
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