How to set irq for PCI->PCMCIA adapter

[M. Warner Losh]

Oh, I just reread things.  You need a stable patch.  Try this one.

Warner

Index: pci_cfgreg.c
===================================================================
RCS file: /home/ncvs/src/sys/i386/isa/Attic/pci_cfgreg.c,v
retrieving revision 1.1.2.7
diff -u -r1.1.2.7 pci_cfgreg.c
--- pci_cfgreg.c	28 Nov 2001 05:47:03 -0000	1.1.2.7
+++ pci_cfgreg.c	7 Apr 2003 05:02:41 -0000
@@ -35,6 +35,7 @@
 #include <sys/kernel.h>
 #include <sys/module.h>
 #include <sys/malloc.h>
+#include <sys/sysctl.h>
 #include <vm/vm.h>
 #include <vm/pmap.h>
 #include <machine/md_var.h>
@@ -67,6 +68,16 @@
 static struct PIR_table	*pci_route_table;
 static int		pci_route_count;
 
+/* sysctl vars */
+SYSCTL_NODE(_hw, OID_AUTO, pci, CTLFLAG_RD, 0, "PCI Bus parameters");
+
+static uint32_t pci_irq_override_mask = 0xdef4;
+TUNABLE_INT("hw.pci.irq_override_mask", &pci_irq_override_mask);
+SYSCTL_INT(_hw_pci, OID_AUTO, irq_override_mask, CTLFLAG_RD,
+    &pci_irq_override_mask, 0xdef4,
+    "Mask of allowed irqs to try to route when it has no good clue about\n"
+    "which irqs it should use.");
+
 static u_int16_t
 pcibios_get_version(void)
 {
@@ -413,7 +434,8 @@
     /* life is tough, so just pick an interrupt */
     for (irq = 0; irq < 16; irq++) {
 	ibit = (1 << irq);
-    
+	if ((ibit & pci_irq_override_mask) == 0)
+	    continue;
 	if (pe->pe_intpin[pin - 1].irqs & ibit) {
 	    PRVERB(("pci_cfgintr_virgin: using routable interrupt %d\n", irq));
 	    return(irq);