On 4/8/22 8:31 AM, Kai-Heng Feng wrote:
On Intel Alder Lake platforms, Thunderbolt entering D3cold can cause some errors reported by AER: [ 30.100211] pcieport 0000:00:1d.0: AER: Uncorrected (Non-Fatal) error received: 0000:00:1d.0 [ 30.100251] pcieport 0000:00:1d.0: PCIe Bus Error: severity=Uncorrected (Non-Fatal), type=Transaction Layer, (Requester ID) [ 30.100256] pcieport 0000:00:1d.0: device [8086:7ab0] error status/mask=00100000/00004000 [ 30.100262] pcieport 0000:00:1d.0: [20] UnsupReq (First) [ 30.100267] pcieport 0000:00:1d.0: AER: TLP Header: 34000000 08000052 00000000 00000000 [ 30.100372] thunderbolt 0000:0a:00.0: AER: can't recover (no error_detected callback) [ 30.100401] xhci_hcd 0000:3e:00.0: AER: can't recover (no error_detected callback) [ 30.100427] pcieport 0000:00:1d.0: AER: device recovery failed Since AER is disabled in previous patch for a Link in L2/L3 Ready, L2 and L3, also disable DPC here as DPC depends on AER to work. Bugzilla:https://bugzilla.kernel.org/show_bug.cgi?id=215453 Reviewed-by: Mika Westerberg<mika.westerberg@xxxxxxxxxxxxxxx> Signed-off-by: Kai-Heng Feng<kai.heng.feng@xxxxxxxxxxxxx>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx>
-- Sathyanarayanan Kuppuswamy Linux Kernel Developer
