ofw_pcib_subr.c revision 230687
1/*- 2 * Copyright (c) 2003 by Thomas Moestl <tmm@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 18 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 20 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 21 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 22 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 23 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include <sys/cdefs.h> 27__FBSDID("$FreeBSD: stable/9/sys/sparc64/pci/ofw_pcib_subr.c 230687 2012-01-28 23:53:06Z marius $"); 28 29#include "opt_ofw_pci.h" 30 31#include <sys/param.h> 32#include <sys/systm.h> 33#include <sys/bus.h> 34#include <sys/rman.h> 35 36#include <dev/ofw/ofw_bus.h> 37#include <dev/ofw/ofw_pci.h> 38#include <dev/ofw/openfirm.h> 39 40#include <machine/bus.h> 41 42#include <dev/pci/pcireg.h> 43#include <dev/pci/pcivar.h> 44#include <dev/pci/pcib_private.h> 45 46#include "pcib_if.h" 47 48#include <sparc64/pci/ofw_pci.h> 49#include <sparc64/pci/ofw_pcib_subr.h> 50 51void 52ofw_pcib_gen_setup(device_t bridge) 53{ 54 struct ofw_pcib_gen_softc *sc; 55 56 sc = device_get_softc(bridge); 57 sc->ops_pcib_sc.dev = bridge; 58 sc->ops_node = ofw_bus_get_node(bridge); 59 KASSERT(sc->ops_node != 0, 60 ("ofw_pcib_gen_setup: no ofw pci parent bus!")); 61 62 ofw_bus_setup_iinfo(sc->ops_node, &sc->ops_iinfo, 63 sizeof(ofw_pci_intr_t)); 64} 65 66int 67ofw_pcib_gen_route_interrupt(device_t bridge, device_t dev, int intpin) 68{ 69 struct ofw_pcib_gen_softc *sc; 70 struct ofw_bus_iinfo *ii; 71 struct ofw_pci_register reg; 72 ofw_pci_intr_t pintr, mintr; 73 uint8_t maskbuf[sizeof(reg) + sizeof(pintr)]; 74 75 sc = device_get_softc(bridge); 76 ii = &sc->ops_iinfo; 77 if (ii->opi_imapsz > 0) { 78 pintr = intpin; 79 if (ofw_bus_lookup_imap(ofw_bus_get_node(dev), ii, ®, 80 sizeof(reg), &pintr, sizeof(pintr), &mintr, sizeof(mintr), 81 NULL, maskbuf)) { 82 /* 83 * If we've found a mapping, return it and don't map 84 * it again on higher levels - that causes problems 85 * in some cases, and never seems to be required. 86 */ 87 return (mintr); 88 } 89 } else if (intpin >= 1 && intpin <= 4) { 90 /* 91 * When an interrupt map is missing, we need to do the 92 * standard PCI swizzle and continue mapping at the parent. 93 */ 94 return (pcib_route_interrupt(bridge, dev, intpin)); 95 } 96 /* Try at the parent. */ 97 return (PCIB_ROUTE_INTERRUPT(device_get_parent(device_get_parent( 98 bridge)), bridge, intpin)); 99} 100 101phandle_t 102ofw_pcib_gen_get_node(device_t bridge, device_t dev) 103{ 104 struct ofw_pcib_gen_softc *sc; 105 106 sc = device_get_softc(bridge); 107 return (sc->ops_node); 108} 109