Index: sys/arch/sparc64/dev/ebus_mainbus.c
===================================================================
RCS file: /cvsroot/src/sys/arch/sparc64/dev/ebus_mainbus.c,v
retrieving revision 1.12
diff -u -r1.12 ebus_mainbus.c
--- sys/arch/sparc64/dev/ebus_mainbus.c	16 Dec 2013 20:17:35 -0000	1.12
+++ sys/arch/sparc64/dev/ebus_mainbus.c	22 Aug 2014 20:12:07 -0000
@@ -56,6 +56,8 @@
 #include <dev/ebus/ebusvar.h>
 #include <sparc64/dev/ebusvar.h>
 
+extern struct cfdriver pyro_cd;
+
 int	ebus_mainbus_match(device_t, cfdata_t, void *);
 void	ebus_mainbus_attach(device_t, device_t, void *);
 
@@ -93,34 +95,10 @@
 	struct ebus_interrupt_map_mask *immp;
 	int node, nmapmask, error;
 	struct pyro_softc *psc;
-	int i;
+	int i, j;
 
 	sc->sc_dev = self;
-	sc->sc_node = node = ma->ma_node;
-	sc->sc_ign = INTIGN((ma->ma_upaid) << INTMAP_IGN_SHIFT);
-
-	if (CPU_ISSUN4U) {
-		printf(": ign %x", sc->sc_ign);
-		/* XXX */
-		extern struct cfdriver pyro_cd;
-
-		for (i = 0; i < pyro_cd.cd_ndevs; i++) {
-			device_t dt = pyro_cd.cd_devs[i];
-			psc = device_private(dt);
-			if (psc && psc->sc_ign == sc->sc_ign) {
-				sc->sc_bust = psc->sc_bustag;
-				sc->sc_csr = psc->sc_csr;
-				sc->sc_csrh = psc->sc_csrh;
-				break;
-			}
-		}
-
-		if (sc->sc_csr == 0) {
-			printf(": can't find matching host bridge leaf\n");
-			return;
-		}
-	}
-
+	
 	printf("\n");
 
 	sc->sc_memtag = ebus_mainbus_alloc_bus_tag(sc, ma->ma_bustag,
@@ -130,6 +108,8 @@
 	sc->sc_childbustag = sc->sc_memtag;
 	sc->sc_dmatag = ma->ma_dmatag;
 
+	sc->sc_node = node = ma->ma_node;
+	
 	/*
 	 * fill in our softc with information from the prom
 	 */
@@ -158,6 +138,23 @@
 		break;
 	}
 
+	/*
+	 * Ebus interrupts may be connected to any of the PCI Express
+	 * leafs.  Here we add the appropriate IGN to the interrupt
+	 * mappings such that we can use it to distingish between
+	 * interrupts connected to PCIE-A and PCIE-B.
+	 */
+	for (i = 0; i < sc->sc_nintmap; i++) {
+		for (j = 0; j < pyro_cd.cd_ndevs; j++) {
+			device_t dt = pyro_cd.cd_devs[j];
+			psc = device_private(dt);
+			if (psc && psc->sc_node == sc->sc_intmap[i].cnode) {
+				sc->sc_intmap[i].cintr |= psc->sc_ign;
+				break;
+			}
+		}
+	}
+	
 	error = prom_getprop(node, "ranges", sizeof(struct ebus_mainbus_ranges),
 	    &sc->sc_nrange, (void **)&sc->sc_range);
 	if (error)
@@ -275,7 +272,6 @@
 ebus_mainbus_intr_establish(bus_space_tag_t t, int ihandle, int level,
 	int (*handler)(void *), void *arg, void (*fastvec)(void) /* ignored */)
 {
-	struct ebus_softc *sc = t->cookie;
 	struct intrhand *ih = NULL;
 	volatile u_int64_t *intrmapptr = NULL, *intrclrptr = NULL;
 	u_int64_t *imap, *iclr;
@@ -334,12 +330,24 @@
 	}
 #endif
 #endif
-	ihandle |= sc->sc_ign;
+
 	ino = INTINO(ihandle);
 
-	/* XXX */
-	imap = (uint64_t *)((uintptr_t)bus_space_vaddr(sc->sc_bustag, sc->sc_csrh) + 0x1000);
-	iclr = (uint64_t *)((uintptr_t)bus_space_vaddr(sc->sc_bustag, sc->sc_csrh) + 0x1400);
+	struct pyro_softc *psc = NULL;
+	int i;
+
+	for (i = 0; i < pyro_cd.cd_ndevs; i++) {
+		device_t dt = pyro_cd.cd_devs[i];
+		psc = device_private(dt);
+		if (psc && psc->sc_ign == INTIGN(ihandle)) {
+			break;
+		}
+	}
+	if (psc == NULL)
+		return (NULL);
+	
+	imap = (uint64_t *)((uintptr_t)bus_space_vaddr(psc->sc_bustag, psc->sc_csrh) + 0x1000);
+	iclr = (uint64_t *)((uintptr_t)bus_space_vaddr(psc->sc_bustag, psc->sc_csrh) + 0x1400);
 	intrmapptr = &imap[ino];
 	intrclrptr = &iclr[ino];
 	ino |= INTVEC(ihandle);
Index: sys/arch/sparc64/dev/ebusvar.h
===================================================================
RCS file: /cvsroot/src/sys/arch/sparc64/dev/ebusvar.h,v
retrieving revision 1.11
diff -u -r1.11 ebusvar.h
--- sys/arch/sparc64/dev/ebusvar.h	1 Jul 2011 18:48:36 -0000	1.11
+++ sys/arch/sparc64/dev/ebusvar.h	22 Aug 2014 20:12:07 -0000
@@ -61,12 +61,6 @@
 
 	int				sc_nrange;	/* counters */
 	int				sc_nintmap;
-
-	int				sc_ign;
-
-	bus_space_tag_t			sc_bust;
-	bus_addr_t			sc_csr;
-	bus_space_handle_t		sc_csrh;
 };
 
 int	ebus_setup_attach_args(struct ebus_softc *, int,
Index: sys/arch/sparc64/dev/iommu.c
===================================================================
RCS file: /cvsroot/src/sys/arch/sparc64/dev/iommu.c,v
retrieving revision 1.107
diff -u -r1.107 iommu.c
--- sys/arch/sparc64/dev/iommu.c	25 Mar 2012 03:51:33 -0000	1.107
+++ sys/arch/sparc64/dev/iommu.c	22 Aug 2014 20:12:07 -0000
@@ -134,7 +134,15 @@
 	 * be hard-wired, so we read the start and size from the PROM and
 	 * just use those values.
 	 */
-	is->is_cr = IOMMUCR_EN;
+	if (strncmp(name, "pyro", 4) == 0) {
+		is->is_cr = IOMMUREG_READ(is, iommu_cr);
+		is->is_cr &= ~IOMMUCR_FIRE_BE;
+		is->is_cr |= (IOMMUCR_FIRE_SE | IOMMUCR_FIRE_CM_EN |
+		    IOMMUCR_FIRE_TE);
+	} else 
+		is->is_cr = IOMMUCR_EN;
 	is->is_tsbsize = tsbsize;
 	if (iovabase == -1) {
 		is->is_dvmabase = IOTSB_VSTART(is->is_tsbsize);
Index: sys/arch/sparc64/dev/iommureg.h
===================================================================
RCS file: /cvsroot/src/sys/arch/sparc64/dev/iommureg.h,v
retrieving revision 1.19
diff -u -r1.19 iommureg.h
--- sys/arch/sparc64/dev/iommureg.h	20 Mar 2011 20:42:06 -0000	1.19
+++ sys/arch/sparc64/dev/iommureg.h	22 Aug 2014 20:12:07 -0000
@@ -110,6 +110,11 @@
 #define IOMMUCR_DE		0x000000000000000002LL	/* Diag enable */
 #define IOMMUCR_EN		0x000000000000000001LL	/* Enable IOMMU */
 
+#define IOMMUCR_FIRE_SE		0x000000000000000400LL	/* Snoop enable */
+#define IOMMUCR_FIRE_CM_EN	0x000000000000000300LL  /* Cache mode enable */
+#define IOMMUCR_FIRE_BE		0x000000000000000002LL	/* Bypass enable */
+#define IOMMUCR_FIRE_TE		0x000000000000000001LL	/* Translation enabled */
+
 /*
  * IOMMU stuff
  */