f3dac80502
[ Upstream commit 5459c0b7046752e519a646e1c2404852bb628459 ] Some Root Ports on Intel Tiger Lake and Alder Lake systems support the RP Extensions for DPC and the RP PIO Log registers but incorrectly advertise an RP PIO Log Size of zero. This means the kernel complains that: DPC: RP PIO log size 0 is invalid and if DPC is triggered, the DPC driver will not dump the RP PIO Log registers when it should. This is caused by a BIOS bug and should be fixed the BIOS for future CPUs. Add a quirk to set the correct RP PIO Log size for the affected Root Ports. Link: https://bugzilla.kernel.org/show_bug.cgi?id=209943 Link: https://lore.kernel.org/r/20220816102042.69125-1-mika.westerberg@linux.intel.com Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Stable-dep-of: 627c6db20703 ("PCI/DPC: Quirk PIO log size for Intel Raptor Lake Root Ports") Signed-off-by: Sasha Levin <sashal@kernel.org> |
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| .. | ||
| aer.c | ||
| aer_inject.c | ||
| aspm.c | ||
| dpc.c | ||
| edr.c | ||
| err.c | ||
| Kconfig | ||
| Makefile | ||
| pme.c | ||
| portdrv.h | ||
| portdrv_core.c | ||
| portdrv_pci.c | ||
| ptm.c | ||
| rcec.c | ||