Author: jchandra
Date: Mon Dec 12 15:17:56 2016
New Revision: 309890
URL: https://svnweb.freebsd.org/changeset/base/309890
Log:
Increase interrupt cells in generic_pcie_fdt_route_interrupt
ARM GIC specification in device trees use 3 cells, so the current
limit of 2 causes the last cell to be dropped. This in turn can
cause the interrupt polarity and trigger settings to be incorrect.
Increase the limit to 4 which should handle all reasonable cases.
This fixes issues seen in QEMU when registering PCI interrupts.
Modified:
head/sys/dev/pci/pci_host_generic_fdt.c
Modified: head/sys/dev/pci/pci_host_generic_fdt.c
==============================================================================
--- head/sys/dev/pci/pci_host_generic_fdt.c Mon Dec 12 13:13:48 2016
(r309889)
+++ head/sys/dev/pci/pci_host_generic_fdt.c Mon Dec 12 15:17:56 2016
(r309890)
@@ -269,7 +269,7 @@ generic_pcie_fdt_route_interrupt(device_
{
struct generic_pcie_fdt_softc *sc;
struct ofw_pci_register reg;
- uint32_t pintr, mintr[2];
+ uint32_t pintr, mintr[4];
phandle_t iparent;
int intrcells;
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