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authorMark Kettenis <kettenis@cvs.openbsd.org>2006-12-11 19:47:38 +0000
committerMark Kettenis <kettenis@cvs.openbsd.org>2006-12-11 19:47:38 +0000
commit784057872389af433017dcdacadd1e9a82c701d6 (patch)
treeddf09be0489246a3e0274d6d1b17381fd7029c8b /sys/arch/i386/pci
parentcf8c382c7360f5cca81208b17363bcea5f55a4b7 (diff)
On i386, swizzle interrupts for devices for which we don't have explicit
inetrrupt routing information. ok deraadt@
Diffstat (limited to 'sys/arch/i386/pci')
-rw-r--r--sys/arch/i386/pci/pci_machdep.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/sys/arch/i386/pci/pci_machdep.c b/sys/arch/i386/pci/pci_machdep.c
index 79c7b6779b8..e998ae914f9 100644
--- a/sys/arch/i386/pci/pci_machdep.c
+++ b/sys/arch/i386/pci/pci_machdep.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: pci_machdep.c,v 1.35 2006/11/11 21:47:52 kettenis Exp $ */
+/* $OpenBSD: pci_machdep.c,v 1.36 2006/12/11 19:47:37 kettenis Exp $ */
/* $NetBSD: pci_machdep.c,v 1.28 1997/06/06 23:29:17 thorpej Exp $ */
/*-
@@ -480,6 +480,20 @@ pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
return 0;
}
}
+ if (mip == NULL && pa->pa_bridgetag) {
+ int bridgebus, bridgedev;
+
+ pci_decompose_tag(pc, *pa->pa_bridgetag,
+ &bridgebus, &bridgedev, NULL);
+ mpspec_pin = (bridgedev << 2)|((pin + dev - 1) & 0x3);
+ for (mip = mp_busses[bridgebus].mb_intrs; mip != NULL;
+ mip = mip->next) {
+ if (mip->bus_pin == mpspec_pin) {
+ ihp->line = mip->ioapic_ih | line;
+ return 0;
+ }
+ }
+ }
if (mip == NULL && mp_isa_bus) {
for (mip = mp_isa_bus->mb_intrs; mip != NULL;
mip = mip->next) {