Signed-off-by: Michael Ellerman <[email protected]>
---
arch/powerpc/platforms/maple/pci.c | 14 ++++++++++++++
1 files changed, 14 insertions(+), 0 deletions(-)
It's getting late in the cycle, so until we can work out what's wrong
with IPR + MSI on Bimini, add a quirk to disable MSI for IPR.
diff --git a/arch/powerpc/platforms/maple/pci.c
b/arch/powerpc/platforms/maple/pci.c
index 3018552..04296ff 100644
--- a/arch/powerpc/platforms/maple/pci.c
+++ b/arch/powerpc/platforms/maple/pci.c
@@ -592,3 +592,17 @@ int maple_pci_get_legacy_ide_irq(struct pci_dev *pdev, int
channel)
}
return irq;
}
+
+static void __devinit quirk_ipr_msi(struct pci_dev *dev)
+{
+ /* Something prevents MSIs from the IPR from working on Bimini,
+ * and the driver has no smarts to recover. So disable MSI
+ * on it for now. */
+
+ if (machine_is(maple)) {
+ dev->no_msi = 1;
+ dev_info(&dev->dev, "Quirk disabled MSI\n");
+ }
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
+ quirk_ipr_msi);
--
1.6.2.1
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