xref: /netbsd/sys/arch/hpcmips/vr/vrpciu.c (revision c4a72b64)
1 /*	$NetBSD: vrpciu.c,v 1.11 2002/10/02 05:26:56 thorpej 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/vripif.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 CFATTACH_DECL(vrpciu, sizeof(struct vrpciu_softc),
102     vrpciu_match, vrpciu_attach, NULL, NULL);
103 
104 static void
105 vrpciu_write(struct vrpciu_softc *sc, int offset, u_int32_t val)
106 {
107 
108 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, offset, val);
109 }
110 
111 static u_int32_t
112 vrpciu_read(struct vrpciu_softc *sc, int offset)
113 {
114 
115 	return (bus_space_read_4(sc->sc_iot, sc->sc_ioh, offset));
116 }
117 
118 #ifdef DEBUG
119 static void
120 vrpciu_write_2(struct vrpciu_softc *sc, int offset, u_int16_t val)
121 {
122 
123 	bus_space_write_2(sc->sc_iot, sc->sc_ioh, offset, val);
124 }
125 
126 static u_int16_t
127 vrpciu_read_2(struct vrpciu_softc *sc, int offset)
128 {
129 
130 	return (bus_space_read_2(sc->sc_iot, sc->sc_ioh, offset));
131 }
132 #endif
133 
134 static int
135 vrpciu_match(struct device *parent, struct cfdata *match, void *aux)
136 {
137 
138 	return (1);
139 }
140 
141 static void
142 vrpciu_attach(struct device *parent, struct device *self, void *aux)
143 {
144 	struct vrpciu_softc *sc = (struct vrpciu_softc *)self;
145 	pci_chipset_tag_t pc = &sc->sc_pc;
146 	struct vrip_attach_args *va = aux;
147 #if defined(DEBUG) || NPCI > 0
148 	u_int32_t reg;
149 #endif
150 #if NPCI > 0
151 	struct bus_space_tag_hpcmips *iot;
152 	char tmpbuf[16];
153 	struct pcibus_attach_args pba;
154 #endif
155 
156 	sc->sc_vc = va->va_vc;
157 	sc->sc_iot = va->va_iot;
158 	if (bus_space_map(sc->sc_iot, va->va_addr, va->va_size, 0,
159 	    &sc->sc_ioh)) {
160 		printf(": couldn't map io space\n");
161 		return;
162 	}
163 
164 	sc->sc_ih = vrip_intr_establish(va->va_vc, va->va_unit, 0, IPL_TTY,
165 	    vrpciu_intr, sc);
166 	if (sc->sc_ih == NULL) {
167 		printf(": couldn't establish interrupt\n");
168 		return;
169 	}
170 
171 	/* Enable level 2 interrupt */
172 	vrip_intr_setmask2(va->va_vc, sc->sc_ih, PCIINT_INT0, 1);
173 
174 	printf("\n");
175 
176 #ifdef DEBUG
177 #define	DUMP_MAW(sc, name, reg) do {					\
178 	printf("%s: %s =\t0x%08x\n", (sc)->sc_dev.dv_xname,		\
179 	    (name), (reg));						\
180 	printf("%s:\tIBA/MASK =\t0x%08x/0x%08x (0x%08x - 0x%08x)\n",	\
181 	    (sc)->sc_dev.dv_xname,					\
182 	    reg & VRPCIU_MAW_IBAMASK, VRPCIU_MAW_ADDRMASK(reg),		\
183 	    VRPCIU_MAW_ADDR(reg),					\
184 	    VRPCIU_MAW_ADDR(reg) + VRPCIU_MAW_SIZE(reg));		\
185 	printf("%s:\tWINEN =\t0x%08x\n", (sc)->sc_dev.dv_xname,		\
186 	    reg & VRPCIU_MAW_WINEN);					\
187 	printf("%s:\tPCIADR =\t0x%08x\n", (sc)->sc_dev.dv_xname,	\
188 	    VRPCIU_MAW_PCIADDR(reg));					\
189 } while (0)
190 #define	DUMP_TAW(sc, name, reg) do {				\
191 	printf("%s: %s =\t\t0x%08x\n", (sc)->sc_dev.dv_xname,	\
192 	    (name), (reg));					\
193 	printf("%s:\tMASK =\t0x%08x\n", (sc)->sc_dev.dv_xname,	\
194 	    VRPCIU_TAW_ADDRMASK(reg));				\
195 	printf("%s:\tWINEN =\t0x%08x\n", (sc)->sc_dev.dv_xname,	\
196 	    reg & VRPCIU_TAW_WINEN);				\
197 	printf("%s:\tIBA =\t0x%08x\n", (sc)->sc_dev.dv_xname,	\
198 	    VRPCIU_TAW_IBA(reg));				\
199 } while (0)
200 	reg = vrpciu_read(sc, VRPCIU_MMAW1REG);
201 	DUMP_MAW(sc, "MMAW1", reg);
202 	reg = vrpciu_read(sc, VRPCIU_MMAW2REG);
203 	DUMP_MAW(sc, "MMAW2", reg);
204 	reg = vrpciu_read(sc, VRPCIU_TAW1REG);
205 	DUMP_TAW(sc, "TAW1", reg);
206 	reg = vrpciu_read(sc, VRPCIU_TAW2REG);
207 	DUMP_TAW(sc, "TAW2", reg);
208 	reg = vrpciu_read(sc, VRPCIU_MIOAWREG);
209 	DUMP_MAW(sc, "MIOAW", reg);
210 	printf("%s: BUSERRAD =\t0x%08x\n", sc->sc_dev.dv_xname,
211 	    vrpciu_read(sc, VRPCIU_BUSERRADREG));
212 	printf("%s: INTCNTSTA =\t0x%08x\n", sc->sc_dev.dv_xname,
213 	    vrpciu_read(sc, VRPCIU_INTCNTSTAREG));
214 	printf("%s: EXACC =\t0x%08x\n", sc->sc_dev.dv_xname,
215 	    vrpciu_read(sc, VRPCIU_EXACCREG));
216 	printf("%s: RECONT =\t0x%08x\n", sc->sc_dev.dv_xname,
217 	    vrpciu_read(sc, VRPCIU_RECONTREG));
218 	printf("%s: PCIEN =\t0x%08x\n", sc->sc_dev.dv_xname,
219 	    vrpciu_read(sc, VRPCIU_ENREG));
220 	printf("%s: CLOCKSEL =\t0x%08x\n", sc->sc_dev.dv_xname,
221 	    vrpciu_read(sc, VRPCIU_CLKSELREG));
222 	printf("%s: TRDYV =\t0x%08x\n", sc->sc_dev.dv_xname,
223 	    vrpciu_read(sc, VRPCIU_TRDYVREG));
224 	printf("%s: CLKRUN =\t0x%08x\n", sc->sc_dev.dv_xname,
225 	    vrpciu_read_2(sc, VRPCIU_CLKRUNREG));
226 	printf("%s: IDREG =\t0x%08x\n", sc->sc_dev.dv_xname,
227 	    vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_ID_REG));
228 	reg = vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_COMMAND_STATUS_REG);
229 	printf("%s: CSR =\t\t0x%08x\n", sc->sc_dev.dv_xname, reg);
230 	vrpciu_write(sc, VRPCIU_CONF_BASE + PCI_COMMAND_STATUS_REG, reg);
231 	printf("%s: CSR =\t\t0x%08x\n", sc->sc_dev.dv_xname,
232 	    vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_COMMAND_STATUS_REG));
233 	printf("%s: CLASS =\t0x%08x\n", sc->sc_dev.dv_xname,
234 	    vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_CLASS_REG));
235 	printf("%s: BHLC =\t\t0x%08x\n", sc->sc_dev.dv_xname,
236 	    vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_BHLC_REG));
237 	printf("%s: MAIL =\t\t0x%08x\n", sc->sc_dev.dv_xname,
238 	    vrpciu_read(sc, VRPCIU_CONF_BASE + VRPCIU_CONF_MAILREG));
239 	printf("%s: MBA1 =\t\t0x%08x\n", sc->sc_dev.dv_xname,
240 	    vrpciu_read(sc, VRPCIU_CONF_BASE + VRPCIU_CONF_MBA1REG));
241 	printf("%s: MBA2 =\t\t0x%08x\n", sc->sc_dev.dv_xname,
242 	    vrpciu_read(sc, VRPCIU_CONF_BASE + VRPCIU_CONF_MBA2REG));
243 	printf("%s: INTR =\t\t0x%08x\n", sc->sc_dev.dv_xname,
244 	    vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_INTERRUPT_REG));
245 #if 0
246 	vrpciu_write(sc, VRPCIU_CONF_BASE + PCI_INTERRUPT_REG,
247 	    vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_INTERRUPT_REG) | 0x01);
248 	printf("%s: INTR =\t\t0x%08x\n", sc->sc_dev.dv_xname,
249 	    vrpciu_read(sc, VRPCIU_CONF_BASE + PCI_INTERRUPT_REG));
250 #endif
251 #endif
252 
253 	pc->pc_dev = &sc->sc_dev;
254 	pc->pc_attach_hook = vrpciu_attach_hook;
255 	pc->pc_bus_maxdevs = vrpciu_bus_maxdevs;
256 	pc->pc_bus_devorder = vrpciu_bus_devorder;
257 	pc->pc_make_tag = vrpciu_make_tag;
258 	pc->pc_decompose_tag = vrpciu_decompose_tag;
259 	pc->pc_conf_read = vrpciu_conf_read;
260 	pc->pc_conf_write = vrpciu_conf_write;
261 	pc->pc_intr_map = vrpciu_intr_map;
262 	pc->pc_intr_string = vrpciu_intr_string;
263 	pc->pc_intr_evcnt = vrpciu_intr_evcnt;
264 	pc->pc_intr_establish = vrpciu_intr_establish;
265 	pc->pc_intr_disestablish = vrpciu_intr_disestablish;
266 
267 #if 0
268 	{
269 		int i;
270 
271 		for (i = 0; i < 8; i++)
272 			printf("%s: ID_REG(0, 0, %d) = 0x%08x\n",
273 			    sc->sc_dev.dv_xname, i,
274 			    pci_conf_read(pc, pci_make_tag(pc, 0, 0, i),
275 				PCI_ID_REG));
276 	}
277 #endif
278 
279 #if NPCI > 0
280 	memset(&pba, 0, sizeof(pba));
281 	pba.pba_busname = "pci";
282 
283 	/* For now, just inherit window mappings set by WinCE.  XXX. */
284 
285 	iot = hpcmips_alloc_bus_space_tag();
286 	reg = vrpciu_read(sc, VRPCIU_MIOAWREG);
287 	snprintf(tmpbuf, sizeof(tmpbuf), "%s/iot",
288 	    sc->sc_dev.dv_xname);
289 	hpcmips_init_bus_space(iot, (struct bus_space_tag_hpcmips *)sc->sc_iot,
290 	    tmpbuf, VRPCIU_MAW_ADDR(reg), VRPCIU_MAW_SIZE(reg));
291 	pba.pba_iot = &iot->bst;
292 
293 	/*
294 	 * Just use system bus space tag.  It works since WinCE maps
295 	 * PCI bus space at same offset.  But this isn't right thing
296 	 * of course.  XXX.
297 	 */
298 	pba.pba_memt = sc->sc_iot;
299 	pba.pba_dmat = &hpcmips_default_bus_dma_tag.bdt;
300 	pba.pba_bus = 0;
301 	pba.pba_bridgetag = NULL;
302 
303 	if (platid_match(&platid, &platid_mask_MACH_LASER5_L_BOARD)) {
304 		/*
305 		 * fix PCI device configration for L-Router.
306 		 */
307 		/* change IDE controller to native mode */
308 		reg = pci_conf_read(pc, pci_make_tag(pc, 0, 16, 0),
309 				    PCI_CLASS_REG);
310 		reg |= PCIIDE_INTERFACE_PCI(0) << PCI_INTERFACE_SHIFT;
311 		reg |= PCIIDE_INTERFACE_PCI(1) << PCI_INTERFACE_SHIFT;
312 		pci_conf_write(pc, pci_make_tag(pc, 0, 16, 0), PCI_CLASS_REG,
313 			       reg);
314 		/* fix broken BAR setting of fxp0, fxp1 */
315 		pci_conf_write(pc, pci_make_tag(pc, 0, 0, 0), PCI_MAPREG_START,
316 			       0x11100000);
317 		pci_conf_write(pc, pci_make_tag(pc, 0, 1, 0), PCI_MAPREG_START,
318 			       0x11200000);
319 	}
320 
321 	pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED |
322 	    PCI_FLAGS_MRL_OKAY;
323 	pba.pba_pc = pc;
324 
325 	config_found(self, &pba, vrpciu_print);
326 #endif
327 }
328 
329 #if NPCI > 0
330 static int
331 vrpciu_print(void *aux, const char *pnp)
332 {
333 	struct pcibus_attach_args *pba = aux;
334 
335 	if (pnp != NULL)
336 		printf("%s at %s", pba->pba_busname, pnp);
337 	else
338 		printf(" bus %d", pba->pba_bus);
339 
340 	return (UNCONF);
341 }
342 #endif
343 
344 /*
345  * Handle PCI error interrupts.
346  */
347 int
348 vrpciu_intr(void *arg)
349 {
350 	struct vrpciu_softc *sc = (struct vrpciu_softc *)arg;
351 	u_int32_t isr, baddr;
352 
353 	isr = vrpciu_read(sc, VRPCIU_INTCNTSTAREG);
354 	baddr = vrpciu_read(sc, VRPCIU_BUSERRADREG);
355 	printf("%s: status=0x%08x  bad addr=0x%08x\n",
356 	    sc->sc_dev.dv_xname, isr, baddr);
357 	return ((isr & 0x0f) ? 1 : 0);
358 }
359 
360 void
361 vrpciu_attach_hook(struct device *parent, struct device *self,
362     struct pcibus_attach_args *pba)
363 {
364 
365 	return;
366 }
367 
368 int
369 vrpciu_bus_maxdevs(pci_chipset_tag_t pc, int busno)
370 {
371 
372 	return (32);
373 }
374 
375 int
376 vrpciu_bus_devorder(pci_chipset_tag_t pc, int busno, char *devs)
377 {
378 	int i, dev;
379 	char priorities[32];
380 	static pcireg_t ids[] = {
381 		/* these devices should be attached first */
382 		PCI_ID_CODE(PCI_VENDOR_NEC, PCI_PRODUCT_NEC_VRC4173_BCU),
383 	};
384 
385 	/* scan PCI devices and check the id table */
386 	memset(priorities, 0, sizeof(priorities));
387 	for (dev = 0; dev < 32; dev++) {
388 		pcireg_t id;
389 		id = pci_conf_read(pc, pci_make_tag(pc, 0, dev, 0),PCI_ID_REG);
390 		for (i = 0; i < sizeof(ids)/sizeof(*ids); i++)
391 			if (id == ids[i])
392 				priorities[dev] = 1;
393 	}
394 
395 	/* fill order array */
396 	for (i = 1; 0 <= i; i--)
397 		for (dev = 0; dev < 32; dev++)
398 			if (priorities[dev] == i)
399 				*devs++ = dev;
400 
401 	return (32);
402 }
403 
404 pcitag_t
405 vrpciu_make_tag(pci_chipset_tag_t pc, int bus, int device, int function)
406 {
407 
408 	return ((bus << 16) | (device << 11) | (function << 8));
409 }
410 
411 void
412 vrpciu_decompose_tag(pci_chipset_tag_t pc, pcitag_t tag, int *bp, int *dp,
413     int *fp)
414 {
415 
416 	if (bp != NULL)
417 		*bp = (tag >> 16) & 0xff;
418 	if (dp != NULL)
419 		*dp = (tag >> 11) & 0x1f;
420 	if (fp != NULL)
421 		*fp = (tag >> 8) & 0x07;
422 }
423 
424 pcireg_t
425 vrpciu_conf_read(pci_chipset_tag_t pc, pcitag_t tag, int reg)
426 {
427 	struct vrpciu_softc *sc = (struct vrpciu_softc *)pc->pc_dev;
428 	u_int32_t val;
429 	int bus, device, function;
430 
431 	pci_decompose_tag(pc, tag, &bus, &device, &function);
432 	if (bus == 0) {
433 		if (device > 21)
434 			return ((pcitag_t)-1);
435 		tag = (1 << (device + 11)) | (function << 8); /* Type 0 */
436 	} else
437 		tag |= VRPCIU_CONF_TYPE1;
438 
439 	vrpciu_write(sc, VRPCIU_CONFAREG, tag | reg);
440 	val = vrpciu_read(sc, VRPCIU_CONFDREG);
441 #if 0
442 	printf("%s: conf_read: tag = 0x%08x, reg = 0x%x, val = 0x%08x\n",
443 	    sc->sc_dev.dv_xname, (u_int32_t)tag, reg, val);
444 #endif
445 	return (val);
446 }
447 
448 void
449 vrpciu_conf_write(pci_chipset_tag_t pc, pcitag_t tag, int reg,
450     pcireg_t data)
451 {
452 	struct vrpciu_softc *sc = (struct vrpciu_softc *)pc->pc_dev;
453 	int bus, device, function;
454 
455 #if 0
456 	printf("%s: conf_write: tag = 0x%08x, reg = 0x%x, val = 0x%08x\n",
457 	    sc->sc_dev.dv_xname, (u_int32_t)tag, reg, (u_int32_t)data);
458 #endif
459 	vrpciu_decompose_tag(pc, tag, &bus, &device, &function);
460 	if (bus == 0) {
461 		if (device > 21)
462 			return;
463 		tag = (1 << (device + 11)) | (function << 8); /* Type 0 */
464 	} else
465 		tag |= VRPCIU_CONF_TYPE1;
466 
467 	vrpciu_write(sc, VRPCIU_CONFAREG, tag | reg);
468 	vrpciu_write(sc, VRPCIU_CONFDREG, data);
469 }
470 
471 int
472 vrpciu_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
473 {
474 	pci_chipset_tag_t pc = pa->pa_pc;
475 	pcitag_t intrtag = pa->pa_intrtag;
476 	int bus, dev, func;
477 #ifdef DEBUG
478 	int line = pa->pa_intrline;
479 	int pin = pa->pa_intrpin;
480 #endif
481 
482 	pci_decompose_tag(pc, intrtag, &bus, &dev, &func);
483 	DPRINTF(("%s(%d, %d, %d): line = %d, pin = %d\n", pc->pc_dev->dv_xname,
484 	    bus, dev, func, line, pin));
485 
486 	*ihp = CONFIG_HOOK_PCIINTR_ID(bus, dev, func);
487 
488 	return (0);
489 }
490 
491 const char *
492 vrpciu_intr_string(pci_chipset_tag_t pc, pci_intr_handle_t ih)
493 {
494 	static char irqstr[sizeof("pciintr") + 16];
495 
496 	snprintf(irqstr, sizeof(irqstr), "pciintr %d:%d:%d",
497 	    CONFIG_HOOK_PCIINTR_BUS((int)ih),
498 	    CONFIG_HOOK_PCIINTR_DEVICE((int)ih),
499 	    CONFIG_HOOK_PCIINTR_FUNCTION((int)ih));
500 
501 	return (irqstr);
502 }
503 
504 const struct evcnt *
505 vrpciu_intr_evcnt(pci_chipset_tag_t pc, pci_intr_handle_t ih)
506 {
507 
508 	/* XXX for now, no evcnt parent reported */
509 
510 	return (NULL);
511 }
512 
513 void *
514 vrpciu_intr_establish(pci_chipset_tag_t pc, pci_intr_handle_t ih, int level,
515     int (*func)(void *), void *arg)
516 {
517 
518 	if (ih == -1)
519 		return (NULL);
520 	DPRINTF(("vrpciu_intr_establish: %lx\n", ih));
521 
522 	return (config_hook(CONFIG_HOOK_PCIINTR, ih, CONFIG_HOOK_EXCLUSIVE,
523 	    (int (*)(void *, int, long, void *))func, arg));
524 }
525 
526 void
527 vrpciu_intr_disestablish(pci_chipset_tag_t pc, void *cookie)
528 {
529 
530 	DPRINTF(("vrpciu_intr_disestablish: %p\n", cookie));
531 	config_unhook(cookie);
532 }
533