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| author |   Takashi Iwai <tiwai@suse.de> | 2025-01-02 17:43:13 +0100 |
|---|---|---|
| committer |   Krzysztof Wilczyński <kwilczynski@kernel.org> | 2025-01-15 17:59:55 +0000 |
| commit | b198499c7d2508a76243b98e7cca992f6fd2b7f7 (patch) | |
| tree | c2329fa3219a784d59d72c0ee6d5c39c2576ac9a | |
| parent | Linux 6.13-rc1 (diff) | |
| download | wireguard-linux-b198499c7d2508a76243b98e7cca992f6fd2b7f7.tar.xz wireguard-linux-b198499c7d2508a76243b98e7cca992f6fd2b7f7.zip | |
PCI/DPC: Quirk PIO log size for Intel Raptor Lake-P
Apparently the Raptor Lake-P reference firmware configures the PIO log size
correctly, but some vendor BIOSes, including at least ASUSTeK COMPUTER INC.
Zenbook UX3402VA_UX3402VA, do not.
Apply the quirk for Raptor Lake-P. This prevents kernel complaints like:
DPC: RP PIO log size 0 is invalid
and also enables the DPC driver to dump the RP PIO Log registers when DPC
is triggered.
Note that the bug report also mentions 8086:a76e, which has been already
added by 627c6db20703 ("PCI/DPC: Quirk PIO log size for Intel Raptor Lake
Root Ports").
Link: https://lore.kernel.org/r/20250102164315.7562-1-tiwai@suse.de
Link: https://bugzilla.suse.com/show_bug.cgi?id=1234623
Signed-off-by: Takashi Iwai <tiwai@suse.de>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/pci/quirks.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 76f4df75b08a..4ed3704ce92e 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -6253,6 +6253,7 @@ 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, 0xa72f, 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 |