On Mon, Nov 06, 2017 at 12:11:36PM +0200, Mika Westerberg wrote:
> Hi,
>
> Currently there is an issue in v4.13 where booting system with
> Thunderbolt device connected causes problems. Typically the device will
> not be tunneled properly and will not function as expected.
>
> The issue has been root caused to the way Linux initializes and handles
> ACPI GPEs (General Purpose Events). In summary we enable them too late
> and that results the PCI core finds upstream PCIe port of the
> Thunderbolt host controller too early (it is not fully configured by the
> BIOS SMI handler yet).
>
> This has been fixed in mainline starting from v4.14-rc1 by the following
> commits:
>
> ecc1165b8b74 ("ACPICA: Dispatch active GPEs at init time")
> 1312b7e0caca ("ACPICA: Make it possible to enable runtime GPEs earlier")
> eb7f43c4adb4 ("ACPI / scan: Enable GPEs before scanning the namespace")
>
> In order to get Thunderbolt working even when there is a device
> connected during boot, can the above 3 commits be included in stable for
> v4.13?
Now all queued up, thanks.
greg k-h