PCI/DPC: Quirk PIO log size for Intel Raptor Lake Root Ports

BugLink: https://bugs.launchpad.net/bugs/2065435

[ Upstream commit 627c6db ]

Commit 5459c0b ("PCI/DPC: Quirk PIO log size for certain Intel Root
Ports") and commit 3b88034 ("PCI/DPC: Quirk PIO log size for Intel Ice
Lake Root Ports") add quirks for Ice, Tiger and Alder Lake Root Ports.
System firmware for Raptor Lake still has the bug, so Linux logs the
warning below on several Raptor Lake systems like Dell Precision 3581 with
Intel Raptor Lake processor (0W18NX) system firmware/BIOS version 1.10.1.

  pci 0000:00:07.0: [8086:a76e] type 01 class 0x060400
  pci 0000:00:07.0: DPC: RP PIO log size 0 is invalid
  pci 0000:00:07.1: [8086:a73f] type 01 class 0x060400
  pci 0000:00:07.1: DPC: RP PIO log size 0 is invalid

Apply the quirk for Raptor Lake Root Ports as well.

This also enables the DPC driver to dump the RP PIO Log registers when DPC
is triggered.

Link: https://lore.kernel.org/r/[email protected]
Reported-by: Niels van Aert <[email protected]>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218560
Signed-off-by: Paul Menzel <[email protected]>
Signed-off-by: Bjorn Helgaas <[email protected]>
Cc: <[email protected]>
Cc: Mika Westerberg <[email protected]>
Cc: Niels van Aert <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
Signed-off-by: Manuel Diewald <[email protected]>
Signed-off-by: Roxana Nicolescu <[email protected]>

Author: paulmenzel

drivers/pci/quirks.c

@@ -6100,4 +6100,6 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2b, dpc_log_size);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2d, dpc_log_size);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a2f, dpc_log_size);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9a31, dpc_log_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0xa73f, dpc_log_size);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0xa76e, dpc_log_size);
 #endif