On Monday, January 5, 2009 10:47 am Jesse Barnes wrote: > On Tuesday, December 16, 2008 7:07 pm Kenji Kaneshige wrote: > > There is a problem that some non hot-pluggable PCIe slots are detected > > as hot-pluggable by pciehp on some platforms. The immediate cause of > > this problem is that hot-plug capable bit in the Slot Capabilities > > register is set even for non hot-pluggable slots on those platforms. > > It seems a BIOS/hardware problem, but we need workaround about that. > > > > Some of those platforms define hot-pluggable PCIe slots on ACPI > > namespace properly, while hot-plug capable bit in the Slot > > Capabilities register is set improperly. So using ACPI namespace > > information in pciehp to detect PCIe hot-pluggable slots would be a > > workaround. > > > > This patch adds 'pciehp_detect_mode' module option. When 'acpi' is > > specified, pciehp uses ACPI namespace information to detect PCIe > > hot-pluggable slots. > > > > Signed-off-by: Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxx> > > Thanks Kenji-san, I applied these three. Hopefully Alex can test on some > of his problematic platforms; I'll see if it helps on my systems too. Cool, this one seems to fix the slot detection issue on my t61 at least. I only see one slot now and no conflicts apparently. acpiphp still registers two slots with a slot number of 1 (so I get "1" and "1-1"), but pciehp just registers one called "5", which matches what acpiphp sees in slot "1". -- Jesse Barnes, Intel Open Source Technology Center -- 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
