Home | History | Annotate | Line # | Download | only in vr
vrpciu.c revision 1.5
      1 /*	$NetBSD: vrpciu.c,v 1.5 2002/01/18 13:51:01 shin Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 Enami Tsugutomo.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/param.h>
     30 #include <sys/systm.h>
     31 #include <sys/device.h>
     32 
     33 #include <machine/bus.h>
     34 #include <machine/bus_space_hpcmips.h>
     35 #include <machine/bus_dma_hpcmips.h>
     36 #include <machine/config_hook.h>
     37 #include <machine/platid.h>
     38 #include <machine/platid_mask.h>
     39 
     40 #include <dev/pci/pcivar.h>
     41 #include <dev/pci/pcidevs.h>
     42 #include <dev/pci/pciidereg.h>
     43 
     44 #include <hpcmips/vr/icureg.h>
     45 #include <hpcmips/vr/vripvar.h>
     46 #include <hpcmips/vr/vrpciureg.h>
     47 
     48 #include "pci.h"
     49 
     50 #ifdef DEBUG
     51 #define	DPRINTF(args)	printf args
     52 #else
     53 #define	DPRINTF(args)
     54 #endif
     55 
     56 struct vrpciu_softc {
     57 	struct device sc_dev;
     58 
     59 	vrip_chipset_tag_t sc_vc;
     60 	bus_space_tag_t sc_iot;
     61 	bus_space_handle_t sc_ioh;
     62 	void *sc_ih;
     63 
     64 	struct vrc4173bcu_softc *sc_bcu; /* vrc4173bcu */
     65 
     66 	struct hpcmips_pci_chipset sc_pc;
     67 };
     68 
     69 static void	vrpciu_write(struct vrpciu_softc *, int, u_int32_t);
     70 static u_int32_t
     71 		vrpciu_read(struct vrpciu_softc *, int);
     72 #ifdef DEBUG
     73 static void	vrpciu_write_2(struct vrpciu_softc *, int, u_int16_t)
     74 	__attribute__((unused));
     75 static u_int16_t
     76 		vrpciu_read_2(struct vrpciu_softc *, int);
     77 #endif
     78 static int	vrpciu_match(struct device *, struct cfdata *, void *);
     79 static void	vrpciu_attach(struct device *, struct device *, void *);
     80 #if NPCI > 0
     81 static int	vrpciu_print(void *, const char *);
     82 #endif
     83 static int	vrpciu_intr(void *);
     84 static void	vrpciu_attach_hook(struct device *, struct device *,
     85 		    struct pcibus_attach_args *);
     86 static int	vrpciu_bus_maxdevs(pci_chipset_tag_t, int);
     87 static int	vrpciu_bus_devorder(pci_chipset_tag_t, int, char *);
     88 static pcitag_t	vrpciu_make_tag(pci_chipset_tag_t, int, int, int);
     89 static void	vrpciu_decompose_tag(pci_chipset_tag_t, pcitag_t, int *, int *,
     90 		    int *);
     91 static pcireg_t	vrpciu_conf_read(pci_chipset_tag_t, pcitag_t, int);
     92 static void	vrpciu_conf_write(pci_chipset_tag_t, pcitag_t, int, pcireg_t);
     93 static int	vrpciu_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
     94 static const char *vrpciu_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
     95 static const struct evcnt *vrpciu_intr_evcnt(pci_chipset_tag_t,
     96 		    pci_intr_handle_t);
     97 static void	*vrpciu_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
     98 		    int, int (*)(void *), void *);
     99 static void	vrpciu_intr_disestablish(pci_chipset_tag_t, void *);
    100 
    101 struct cfattach vrpciu_ca = {
    102 	sizeof(struct vrpciu_softc), vrpciu_match, vrpciu_attach
    103 };
    104 
    105 static void
    106 vrpciu_write(struct vrpciu_softc *sc, int offset, u_int32_t val)
    107 {
    108 
    109 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, offset, val);
    110 }
    111 
    112 static u_int32_t
    113 vrpciu_read(struct vrpciu_softc *sc, int offset)
    114 {
    115 
    116 	return (bus_space_read_4(sc->sc_iot, sc->sc_ioh, offset));
    117 }
    118 
    119 #ifdef DEBUG
    120 static void
    121 vrpciu_write_2(struct vrpciu_softc *sc, int offset, u_int16_t val)
    122 {
    123 
    124 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, offset, val);
    125 }
    126 
    127 static u_int16_t
    128 vrpciu_read_2(struct vrpciu_softc *sc, int offset)
    129 {
    130 
    131 	return (bus_space_read_2(sc->sc_iot, sc->sc_ioh, offset));
    132 }
    133 #endif
    134 
    135 static int
    136 vrpciu_match(struct device *parent, struct cfdata *match, void *aux)
    137 {
    138 
    139 	return (1);
    140 }
    141 
    142 static void
    143 vrpciu_attach(struct device *parent, struct device *self, void *aux)
    144 {
    145 	struct vrpciu_softc *sc = (struct vrpciu_softc *)self;
    146 	pci_chipset_tag_t pc = &sc->sc_pc;
    147 	struct vrip_attach_args *va = aux;
    148 	struct bus_space_tag_hpcmips *iot;
    149 	u_int32_t reg;
    150 	char tmpbuf[16];
    151 #if NPCI > 0
    152 	struct pcibus_attach_args pba;
    153 #endif
    154 
    155 	sc->sc_vc = va->va_vc;
    156 	sc->sc_iot = va->va_iot;
    157 	if (bus_space_map(sc->sc_iot, va->va_addr, va->va_size, 0,
    158 	    &sc->sc_ioh)) {
    159 		printf(": couldn't map io space\n");
    160 		return;
    161 	}
    162 
    163 	sc->sc_ih = vrip_intr_establish(va->va_vc, va->va_intr, IPL_TTY,
    164 	    vrpciu_intr, sc);
    165 	if (sc->sc_ih == NULL) {
    166 		printf(": couldn't establish interrupt\n");
    167 		return;
    168 	}
    169 
    170 	/* Enable level 2 interrupt */
    171 	vrip_intr_setmask2(va->va_vc, sc->sc_ih, PCIINT_INT0, 1);
    172 
    173 	printf("\n");
    174 
    175 #ifdef DEBUG
    176 #define	DUMP_MAW(sc, name, reg) do {					\
    177 	printf("%s: %s =\t0x%08x\n", (sc)->sc_dev.dv_xname,		\
    178 	    (name), (reg));						\
    179 	printf("%s:\tIBA/MASK =\t0x%08x/0x%08x (0x%08x - 0x%08x)\n",	\
    180 	    (sc)->sc_dev.dv_xname,					\
    181 	    reg & VRPCIU_MAW_IBAMASK, VRPCIU_MAW_ADDRMASK(reg),		\
    182 	    VRPCIU_MAW_ADDR(reg),					\
    183 	    VRPCIU_MAW_ADDR(reg) + VRPCIU_MAW_SIZE(reg));		\
    184 	printf("%s:\tWINEN =\t0x%08x\n", (sc)->sc_dev.dv_xname,		\
    185 	    reg & VRPCIU_MAW_WINEN);					\
    186 	printf("%s:\tPCIADR =\t0x%08x\n", (sc)->sc_dev.dv_xname,	\
    187 	    VRPCIU_MAW_PCIADDR(reg));					\
    188 } while (0)
    189 #define	DUMP_TAW(sc, name, reg) do {				\
    190 	printf("%s: %s =\t\t0x%08x\n", (sc)->sc_dev.dv_xname,	\
    191 	    (name), (reg));					\
    192 	printf("%s:\tMASK =\t0x%08x\n", (sc)->sc_dev.dv_xname,	\
    193 	    VRPCIU_TAW_ADDRMASK(reg));				\
    194 	printf("%s:\tWINEN =\t0x%08x\n", (sc)->sc_dev.dv_xname,	\
    195 	    reg & VRPCIU_TAW_WINEN);				\
    196 	printf("%s:\tIBA =\t0x%08x\n", (sc)->sc_dev.dv_xname,	\
    197 	    VRPCIU_TAW_IBA(reg));				\
    198 } while (0)
    199 	reg = vrpciu_read(sc, VRPCIU_MMAW1REG);
    200 	DUMP_MAW(sc, "MMAW1", reg);
    201 	reg = vrpciu_read(sc, VRPCIU_MMAW2REG);
    202 	DUMP_MAW(sc, "MMAW2", reg);
    203 	reg = vrpciu_read(sc, VRPCIU_TAW1REG);
    204 	DUMP_TAW(sc, "TAW1", reg);
    205 	reg = vrpciu_read(sc, VRPCIU_TAW2REG);
    206 	DUMP_TAW(sc, "TAW2", reg);
    207 	reg = vrpciu_read(sc, VRPCIU_MIOAWREG);
    208 	DUMP_MAW(sc, "MIOAW", reg);
    209 	printf("%s: BUSERRAD =\t0x%08x\n", sc->sc_dev.dv_xname,
    210 	    vrpciu_read(sc, VRPCIU_BUSERRADREG));
    211 	printf("%s: INTCNTSTA =\t0x%08x\n", sc->sc_dev.dv_xname,
    212 	    vrpciu_read(sc, VRPCIU_INTCNTSTAREG));
    213 	printf("%s: EXACC =\t0x%08x\n", sc->sc_dev.dv_xname,
    214 	    vrpciu_read(sc, VRPCIU_EXACCREG));
    215 	printf("%s: RECONT =\t0x%08x\n", sc->sc_dev.dv_xname,
    216 	    vrpciu_read(sc, VRPCIU_RECONTREG));
    217 	printf("%s: PCIEN =\t0x%08x\n", sc->sc_dev.dv_xname,
    218 	    vrpciu_read(sc, VRPCIU_ENREG));
    219 	printf("%s: CLOCKSEL =\t0x%08x\n", sc->sc_dev.dv_xname,
    220 	    vrpciu_read(sc, VRPCIU_CLKSELREG));
    221 	printf("%s: TRDYV =\t0x%08x\n", sc->sc_dev.dv_xname,
    222 	    vrpciu_read(sc, VRPCIU_TRDYVREG));
    223 	printf("%s: CLKRUN =\t0x%08x\n", sc->sc_dev.dv_xname,
    224 	    vrpciu_read_2(sc, VRPCIU_CLKRUNREG));
    225 	printf("%s: IDREG =\t0x%08x\n", sc->sc_dev.dv_xname,
    226 	    vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_ID_REG));
    227 	reg = vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_COMMAND_STATUS_REG);
    228 	printf("%s: CSR =\t\t0x%08x\n", sc->sc_dev.dv_xname, reg);
    229 	vrpciu_write(sc, VRPCIU_CONF_BASE + PCI_COMMAND_STATUS_REG, reg);
    230 	printf("%s: CSR =\t\t0x%08x\n", sc->sc_dev.dv_xname,
    231 	    vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_COMMAND_STATUS_REG));
    232 	printf("%s: CLASS =\t0x%08x\n", sc->sc_dev.dv_xname,
    233 	    vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_CLASS_REG));
    234 	printf("%s: BHLC =\t\t0x%08x\n", sc->sc_dev.dv_xname,
    235 	    vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_BHLC_REG));
    236 	printf("%s: MAIL =\t\t0x%08x\n", sc->sc_dev.dv_xname,
    237 	    vrpciu_read(sc, VRPCIU_CONF_BASE + VRPCIU_CONF_MAILREG));
    238 	printf("%s: MBA1 =\t\t0x%08x\n", sc->sc_dev.dv_xname,
    239 	    vrpciu_read(sc, VRPCIU_CONF_BASE + VRPCIU_CONF_MBA1REG));
    240 	printf("%s: MBA2 =\t\t0x%08x\n", sc->sc_dev.dv_xname,
    241 	    vrpciu_read(sc, VRPCIU_CONF_BASE + VRPCIU_CONF_MBA2REG));
    242 	printf("%s: INTR =\t\t0x%08x\n", sc->sc_dev.dv_xname,
    243 	    vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_INTERRUPT_REG));
    244 #if 0
    245 	vrpciu_write(sc, VRPCIU_CONF_BASE + PCI_INTERRUPT_REG,
    246 	    vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_INTERRUPT_REG) | 0x01);
    247 	printf("%s: INTR =\t\t0x%08x\n", sc->sc_dev.dv_xname,
    248 	    vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_INTERRUPT_REG));
    249 #endif
    250 #endif
    251 
    252 	pc->pc_dev = &sc->sc_dev;
    253 	pc->pc_attach_hook = vrpciu_attach_hook;
    254 	pc->pc_bus_maxdevs = vrpciu_bus_maxdevs;
    255 	pc->pc_bus_devorder = vrpciu_bus_devorder;
    256 	pc->pc_make_tag = vrpciu_make_tag;
    257 	pc->pc_decompose_tag = vrpciu_decompose_tag;
    258 	pc->pc_conf_read = vrpciu_conf_read;
    259 	pc->pc_conf_write = vrpciu_conf_write;
    260 	pc->pc_intr_map = vrpciu_intr_map;
    261 	pc->pc_intr_string = vrpciu_intr_string;
    262 	pc->pc_intr_evcnt = vrpciu_intr_evcnt;
    263 	pc->pc_intr_establish = vrpciu_intr_establish;
    264 	pc->pc_intr_disestablish = vrpciu_intr_disestablish;
    265 
    266 #if 0
    267 	{
    268 		int i;
    269 
    270 		for (i = 0; i < 8; i++)
    271 			printf("%s: ID_REG(0, 0, %d) = 0x%08x\n",
    272 			    sc->sc_dev.dv_xname, i,
    273 			    pci_conf_read(pc, pci_make_tag(pc, 0, 0, i),
    274 				PCI_ID_REG));
    275 	}
    276 #endif
    277 
    278 #if NPCI > 0
    279 	memset(&pba, 0, sizeof(pba));
    280 	pba.pba_busname = "pci";
    281 
    282 	/* For now, just inherit window mappings set by WinCE.  XXX. */
    283 
    284 	iot = hpcmips_alloc_bus_space_tag();
    285 	reg = vrpciu_read(sc, VRPCIU_MIOAWREG);
    286 	snprintf(tmpbuf, sizeof(tmpbuf), "%s/iot",
    287 	    sc->sc_dev.dv_xname);
    288 	hpcmips_init_bus_space(iot, (struct bus_space_tag_hpcmips *)sc->sc_iot,
    289 	    tmpbuf, VRPCIU_MAW_ADDR(reg), VRPCIU_MAW_SIZE(reg));
    290 	pba.pba_iot = &iot->bst;
    291 
    292 	/*
    293 	 * Just use system bus space tag.  It works since WinCE maps
    294 	 * PCI bus space at same offset.  But this isn't right thing
    295 	 * of course.  XXX.
    296 	 */
    297 	pba.pba_memt = sc->sc_iot;
    298 	pba.pba_dmat = &hpcmips_default_bus_dma_tag.bdt;
    299 	pba.pba_bus = 0;
    300 
    301 	if (platid_match(&platid, &platid_mask_MACH_LASER5_L_BOARD)) {
    302 		/*
    303 		 * fix PCI device configration for L-Router.
    304 		 */
    305 		/* change IDE controller to native mode */
    306 		reg = pci_conf_read(pc, pci_make_tag(pc, 0, 16, 0),
    307 				    PCI_CLASS_REG);
    308 		reg |= PCIIDE_INTERFACE_PCI(0) << PCI_INTERFACE_SHIFT;
    309 		reg |= PCIIDE_INTERFACE_PCI(1) << PCI_INTERFACE_SHIFT;
    310 		pci_conf_write(pc, pci_make_tag(pc, 0, 16, 0), PCI_CLASS_REG,
    311 			       reg);
    312 		/* fix broken BAR setting of fxp0, fxp1 */
    313 		pci_conf_write(pc, pci_make_tag(pc, 0, 0, 0), PCI_MAPREG_START,
    314 			       0x11100000);
    315 		pci_conf_write(pc, pci_make_tag(pc, 0, 1, 0), PCI_MAPREG_START,
    316 			       0x11200000);
    317 	}
    318 
    319 	pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED |
    320 	    PCI_FLAGS_MRL_OKAY;
    321 	pba.pba_pc = pc;
    322 
    323 	config_found(self, &pba, vrpciu_print);
    324 #endif
    325 }
    326 
    327 #if NPCI > 0
    328 static int
    329 vrpciu_print(void *aux, const char *pnp)
    330 {
    331 	struct pcibus_attach_args *pba = aux;
    332 
    333 	if (pnp != NULL)
    334 		printf("%s at %s", pba->pba_busname, pnp);
    335 	else
    336 		printf(" bus %d", pba->pba_bus);
    337 
    338 	return (UNCONF);
    339 }
    340 #endif
    341 
    342 /*
    343  * Handle PCI error interrupts.
    344  */
    345 int
    346 vrpciu_intr(void *arg)
    347 {
    348 	struct vrpciu_softc *sc = (struct vrpciu_softc *)arg;
    349 	u_int32_t isr;
    350 
    351 	isr = vrpciu_read(sc, VRPCIU_INTCNTSTAREG);
    352 	printf("%s: vrpciu_intr 0x%08x\n", sc->sc_dev.dv_xname, isr);
    353 	return ((isr & 0x0f) ? 1 : 0);
    354 }
    355 
    356 void
    357 vrpciu_attach_hook(struct device *parent, struct device *self,
    358     struct pcibus_attach_args *pba)
    359 {
    360 
    361 	return;
    362 }
    363 
    364 int
    365 vrpciu_bus_maxdevs(pci_chipset_tag_t pc, int busno)
    366 {
    367 
    368 	return (32);
    369 }
    370 
    371 int
    372 vrpciu_bus_devorder(pci_chipset_tag_t pc, int busno, char *devs)
    373 {
    374 	int i, dev;
    375 	char priorities[32];
    376 	static pcireg_t ids[] = {
    377 		/* these devices should be attached first */
    378 		PCI_ID_CODE(PCI_VENDOR_NEC, PCI_PRODUCT_NEC_VRC4173_BCU),
    379 	};
    380 
    381 	/* scan PCI devices and check the id table */
    382 	memset(priorities, 0, sizeof(priorities));
    383 	for (dev = 0; dev < 32; dev++) {
    384 		pcireg_t id;
    385 		id = pci_conf_read(pc, pci_make_tag(pc, 0, dev, 0),PCI_ID_REG);
    386 		for (i = 0; i < sizeof(ids)/sizeof(*ids); i++)
    387 			if (id == ids[i])
    388 				priorities[dev] = 1;
    389 	}
    390 
    391 	/* fill order array */
    392 	for (i = 1; 0 <= i; i--)
    393 		for (dev = 0; dev < 32; dev++)
    394 			if (priorities[dev] == i)
    395 				*devs++ = dev;
    396 
    397 	return (32);
    398 }
    399 
    400 pcitag_t
    401 vrpciu_make_tag(pci_chipset_tag_t pc, int bus, int device, int function)
    402 {
    403 
    404 	return ((bus << 16) | (device << 11) | (function << 8));
    405 }
    406 
    407 void
    408 vrpciu_decompose_tag(pci_chipset_tag_t pc, pcitag_t tag, int *bp, int *dp,
    409     int *fp)
    410 {
    411 
    412 	if (bp != NULL)
    413 		*bp = (tag >> 16) & 0xff;
    414 	if (dp != NULL)
    415 		*dp = (tag >> 11) & 0x1f;
    416 	if (fp != NULL)
    417 		*fp = (tag >> 8) & 0x07;
    418 }
    419 
    420 pcireg_t
    421 vrpciu_conf_read(pci_chipset_tag_t pc, pcitag_t tag, int reg)
    422 {
    423 	struct vrpciu_softc *sc = (struct vrpciu_softc *)pc->pc_dev;
    424 	u_int32_t val;
    425 	int bus, device, function;
    426 
    427 	pci_decompose_tag(pc, tag, &bus, &device, &function);
    428 	if (bus == 0) {
    429 		if (device > 21)
    430 			return ((pcitag_t)-1);
    431 		tag = (1 << (device + 11)) | (function << 8); /* Type 0 */
    432 	} else
    433 		tag |= VRPCIU_CONF_TYPE1;
    434 
    435 	vrpciu_write(sc, VRPCIU_CONFAREG, tag | reg);
    436 	val = vrpciu_read(sc, VRPCIU_CONFDREG);
    437 #if 0
    438 	printf("%s: conf_read: tag = 0x%08x, reg = 0x%x, val = 0x%08x\n",
    439 	    sc->sc_dev.dv_xname, (u_int32_t)tag, reg, val);
    440 #endif
    441 	return (val);
    442 }
    443 
    444 void
    445 vrpciu_conf_write(pci_chipset_tag_t pc, pcitag_t tag, int reg,
    446     pcireg_t data)
    447 {
    448 	struct vrpciu_softc *sc = (struct vrpciu_softc *)pc->pc_dev;
    449 	int bus, device, function;
    450 
    451 #if 0
    452 	printf("%s: conf_write: tag = 0x%08x, reg = 0x%x, val = 0x%08x\n",
    453 	    sc->sc_dev.dv_xname, (u_int32_t)tag, reg, (u_int32_t)data);
    454 #endif
    455 	vrpciu_decompose_tag(pc, tag, &bus, &device, &function);
    456 	if (bus == 0) {
    457 		if (device > 21)
    458 			return;
    459 		tag = (1 << (device + 11)) | (function << 8); /* Type 0 */
    460 	} else
    461 		tag |= VRPCIU_CONF_TYPE1;
    462 
    463 	vrpciu_write(sc, VRPCIU_CONFAREG, tag | reg);
    464 	vrpciu_write(sc, VRPCIU_CONFDREG, data);
    465 }
    466 
    467 int
    468 vrpciu_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
    469 {
    470 	pci_chipset_tag_t pc = pa->pa_pc;
    471 	pcitag_t intrtag = pa->pa_intrtag;
    472 	int bus, dev, func;
    473 #ifdef DEBUG
    474 	int line = pa->pa_intrline;
    475 	int pin = pa->pa_intrpin;
    476 #endif
    477 
    478 	pci_decompose_tag(pc, intrtag, &bus, &dev, &func);
    479 	DPRINTF(("%s(%d, %d, %d): line = %d, pin = %d\n", pc->pc_dev->dv_xname,
    480 	    bus, dev, func, line, pin));
    481 
    482 	*ihp = CONFIG_HOOK_PCIINTR_ID(bus, dev, func);
    483 
    484 	return (0);
    485 }
    486 
    487 const char *
    488 vrpciu_intr_string(pci_chipset_tag_t pc, pci_intr_handle_t ih)
    489 {
    490 	static char irqstr[sizeof("pciintr") + 16];
    491 
    492 	snprintf(irqstr, sizeof(irqstr), "pciintr %d:%d:%d",
    493 	    CONFIG_HOOK_PCIINTR_BUS((int)ih),
    494 	    CONFIG_HOOK_PCIINTR_DEVICE((int)ih),
    495 	    CONFIG_HOOK_PCIINTR_FUNCTION((int)ih));
    496 
    497 	return (irqstr);
    498 }
    499 
    500 const struct evcnt *
    501 vrpciu_intr_evcnt(pci_chipset_tag_t pc, pci_intr_handle_t ih)
    502 {
    503 
    504 	/* XXX for now, no evcnt parent reported */
    505 
    506 	return (NULL);
    507 }
    508 
    509 void *
    510 vrpciu_intr_establish(pci_chipset_tag_t pc, pci_intr_handle_t ih, int level,
    511     int (*func)(void *), void *arg)
    512 {
    513 
    514 	if (ih == -1)
    515 		return (NULL);
    516 	DPRINTF(("vrpciu_intr_establish: %p\n", sc));
    517 
    518 	return (config_hook(CONFIG_HOOK_PCIINTR, ih, CONFIG_HOOK_EXCLUSIVE,
    519 	    (int (*)(void *, int, long, void *))func, arg));
    520 }
    521 
    522 void
    523 vrpciu_intr_disestablish(pci_chipset_tag_t pc, void *cookie)
    524 {
    525 
    526 	DPRINTF(("vrpciu_intr_disestablish: %p\n", sc));
    527 	config_unhook(cookie);
    528 }
    529