From: Ondrej Zary <linux@rainbow-software.org>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-pci@vger.kernel.org,
Kernel development list <linux-kernel@vger.kernel.org>
Subject: [PATCH] PCI: disable MSI on SiS 761
Date: Fri, 11 Sep 2015 23:12:17 +0200 [thread overview]
Message-ID: <1442005937-21938-1-git-send-email-linux@rainbow-software.org> (raw)
MSI is broken on SiS 761 chipset at least on PC Chips A31G board.
No interrupts are delivered once MSI is enabled for a device. This causes
hang on X11 start with a nVidia card installed (with nouveau driver).
Disable MSI completely for this chipset.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
---
drivers/pci/quirks.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index e9fd0e9..6caffc3 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2204,6 +2204,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3336, quirk_disab
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3351, quirk_disable_all_msi);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT3364, quirk_disable_all_msi);
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8380_0, quirk_disable_all_msi);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SI, 0x0761, quirk_disable_all_msi);
/* Disable MSI on chipsets that are known to not support it */
static void quirk_disable_msi(struct pci_dev *dev)
--
Ondrej Zary
next reply other threads:[~2015-09-11 21:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-11 21:12 Ondrej Zary [this message]
2015-09-24 18:21 ` [PATCH] PCI: disable MSI on SiS 761 Bjorn Helgaas
2015-09-24 19:21 ` Ondrej Zary
2015-09-24 20:40 ` Bjorn Helgaas
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