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PCI: Mark Creative Labs EMU20k2 INTx masking as broken

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Per user reports, the Creative Labs EMU20k2 (Sound Blaster X-Fi
Titanium Series) generates spurious interrupts when used with
vfio-pci unless DisINTx masking support is disabled.

Thus, quirk the device to mark INTx masking as broken.

Closes: https://lore.kernel.org/all/VI1PR10MB8207C507DB5420AB4C7281E0DB9A2@VI1PR10MB8207.EURPRD10.PROD.OUTLOOK.COM
Link: https://lore.kernel.org/linux-pci/20240912215331.839220-1-alex.williamson@redhat.com
Reported-by: zdravko delineshev <delineshev@outlook.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
[kwilczynski: commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
This commit is contained in:
Alex Williamson 2024-09-12 15:53:27 -06:00 committed by Krzysztof Wilczyński
parent 026f84d3fa
commit 2910306655
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GPG Key ID: 7C64768D3DE334E7
1 changed files with 2 additions and 0 deletions
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2
drivers/pci/quirks.c
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@ -3608,6 +3608,8 @@ DECLARE_PCI_FIXUP_FINAL(0x1814, 0x0601, /* Ralink RT2800 802.11n PCI */
quirk_broken_intx_masking);
DECLARE_PCI_FIXUP_FINAL(0x1b7c, 0x0004, /* Ceton InfiniTV4 */
quirk_broken_intx_masking);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2,
quirk_broken_intx_masking);
/*
* Realtek RTL8169 PCI Gigabit Ethernet Controller (rev 10)