Hi Ying Huang,
Indeed, the new logic is wrong, I will provide new patch.
Regards,
Tomasz
On 16.03.2015 02:47, Huang Ying wrote:
FYI, we noticed the below changes on
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git pci/ecam-tn4
commit 123873321c4c730f905c1c91de131772024f58ee ("x86, pci: Reorder logic of
pci_mmconfig_insert() function")
We found new dmesg as below:
[ 1.551098] ACPI: Using IOAPIC for interrupt routing
[ 1.556290] HEST: Table parsing has been initialized.
[ 1.561516] PCI: Using host bridge windows from ACPI; if necessary, use
"pci=nocrs" and report a bug
[ 1.571452] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[ 1.584690] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
[ 1.591050] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM
Segments MSI]
[ 1.599823] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER
PCIeCapability]
[ 1.608188] acpi PNP0A08:00: fail to add MMCONFIG information, can't access
extended PCI configuration space under this bridge.
[ 1.620188] PCI host bridge to bus 0000:00
[ 1.624464] pci_bus 0000:00: root bus resource [bus 00-ff]
[ 1.630124] pci_bus 0000:00: root bus resource [io 0x0000-0x0cf7 window]
[ 1.637091] pci_bus 0000:00: root bus resource [io 0x0d00-0xffff window]
[ 1.644060] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000bffff
window]
[ 1.651849] pci_bus 0000:00: root bus resource [mem 0xc0000000-0xffffffff
window]
[ 1.659652] pci 0000:00:00.0: [8086:3400] type 00 class 0x060000
[ 1.665893] pci 0000:00:00.0: PME# supported from D0 D3hot D3cold
[ 1.672252] pci 0000:00:01.0: [8086:3408] type 01 class 0x060400
[ 1.678493] pci 0000:00:01.0: PME# supported from D0 D3hot D3cold
[ 1.684857] pci 0000:00:02.0: [8086:3409] type 01 class 0x060400
[ 1.691091] pci 0000:00:02.0: PME# supported from D0 D3hot D3cold
[ 1.697446] pci 0000:00:03.0: [8086:340a] type 01 class 0x060400
[ 1.703681] pci 0000:00:03.0: PME# supported from D0 D3hot D3cold
[ 1.710039] pci 0000:00:04.0: [8086:340b] type 01 class 0x060400
[ 1.716269] pci 0000:00:04.0: PME# supported from D0 D3hot D3cold
Something looks suspicious:
[ 1.608188] acpi PNP0A08:00: fail to add MMCONFIG information, can't access
extended PCI configuration space under this bridge.
Thanks,
Ying Huang
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