2 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * This code is derived from software contributed to The NetBSD Foundation
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the NetBSD
19 * Foundation, Inc. and its contributors.
20 * 4. Neither the name of The NetBSD Foundation nor the names of its
21 * contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
25 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
26 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
27 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
37 * Copyright (c) 1992, 1993
38 * The Regents of the University of California. All rights reserved.
40 * This software was developed by the Computer Systems Engineering group
41 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
42 * contributed to Berkeley.
44 * All advertising materials mentioning features or use of this software
45 * must display the following acknowledgement:
46 * This product includes software developed by the University of
47 * California, Lawrence Berkeley Laboratory.
49 * Redistribution and use in source and binary forms, with or without
50 * modification, are permitted provided that the following conditions
52 * 1. Redistributions of source code must retain the above copyright
53 * notice, this list of conditions and the following disclaimer.
54 * 2. Redistributions in binary form must reproduce the above copyright
55 * notice, this list of conditions and the following disclaimer in the
56 * documentation and/or other materials provided with the distribution.
57 * 4. Neither the name of the University nor the names of its contributors
58 * may be used to endorse or promote products derived from this software
59 * without specific prior written permission.
61 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
62 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
63 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
64 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
65 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
66 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
67 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
68 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
69 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
70 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
74 * Copyright (c) 1999 Eduardo Horvath
75 * Copyright (c) 2002 by Thomas Moestl <tmm@FreeBSD.org>.
76 * Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org>
77 * All rights reserved.
79 * Redistribution and use in source and binary forms, with or without
80 * modification, are permitted provided that the following conditions
82 * 1. Redistributions of source code must retain the above copyright
83 * notice, this list of conditions and the following disclaimer.
85 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
86 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
87 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
88 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
89 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
90 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
91 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
92 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
93 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
94 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
97 * from: @(#)sbus.c 8.1 (Berkeley) 6/11/93
98 * from: NetBSD: sbus.c,v 1.46 2001/10/07 20:30:41 eeh Exp
101 #include <sys/cdefs.h>
102 __FBSDID("$FreeBSD$");
108 #include <sys/param.h>
109 #include <sys/systm.h>
111 #include <sys/kernel.h>
112 #include <sys/malloc.h>
113 #include <sys/module.h>
114 #include <sys/pcpu.h>
115 #include <sys/queue.h>
116 #include <sys/reboot.h>
117 #include <sys/rman.h>
119 #include <dev/ofw/ofw_bus.h>
120 #include <dev/ofw/ofw_bus_subr.h>
121 #include <dev/ofw/openfirm.h>
123 #include <machine/bus.h>
124 #include <machine/bus_common.h>
125 #include <machine/bus_private.h>
126 #include <machine/iommureg.h>
127 #include <machine/iommuvar.h>
128 #include <machine/resource.h>
130 #include <sparc64/sbus/ofw_sbus.h>
131 #include <sparc64/sbus/sbusreg.h>
132 #include <sparc64/sbus/sbusvar.h>
134 struct sbus_devinfo {
139 struct ofw_bus_devinfo sdi_obdinfo;
140 struct resource_list sdi_rl;
143 /* Range descriptor, allocated for each sc_range. */
145 bus_addr_t rd_poffset;
148 bus_addr_t rd_coffset;
151 bus_space_handle_t rd_bushandle;
152 struct resource *rd_res;
157 bus_dma_tag_t sc_cdmatag;
158 bus_space_tag_t sc_cbustag;
159 int sc_clockfreq; /* clock frequency (in Hz) */
161 struct sbus_rd *sc_rd;
162 int sc_burst; /* burst transfer sizes supp. */
164 struct resource *sc_sysio_res;
165 int sc_ign; /* IGN for this sysio */
166 struct iommu_state sc_is; /* IOMMU state (iommuvar.h) */
168 struct resource *sc_ot_ires;
170 struct resource *sc_pf_ires;
174 #define SYSIO_READ8(sc, off) \
175 bus_read_8((sc)->sc_sysio_res, (off))
176 #define SYSIO_WRITE8(sc, off, v) \
177 bus_write_8((sc)->sc_sysio_res, (off), (v))
179 static device_probe_t sbus_probe;
180 static device_attach_t sbus_attach;
181 static bus_print_child_t sbus_print_child;
182 static bus_probe_nomatch_t sbus_probe_nomatch;
183 static bus_read_ivar_t sbus_read_ivar;
184 static bus_get_resource_list_t sbus_get_resource_list;
185 static bus_setup_intr_t sbus_setup_intr;
186 static bus_alloc_resource_t sbus_alloc_resource;
187 static bus_release_resource_t sbus_release_resource;
188 static bus_activate_resource_t sbus_activate_resource;
189 static bus_deactivate_resource_t sbus_deactivate_resource;
190 static bus_get_dma_tag_t sbus_get_dma_tag;
191 static ofw_bus_get_devinfo_t sbus_get_devinfo;
193 static int sbus_inlist(const char *, const char *const *);
194 static struct sbus_devinfo * sbus_setup_dinfo(device_t, struct sbus_softc *,
196 static void sbus_destroy_dinfo(struct sbus_devinfo *);
197 static void sbus_intr_enable(void *);
198 static void sbus_intr_disable(void *);
199 static void sbus_intr_assign(void *);
200 static void sbus_intr_clear(void *);
201 static int sbus_find_intrmap(struct sbus_softc *, u_int, bus_addr_t *,
203 static bus_space_tag_t sbus_alloc_bustag(struct sbus_softc *);
204 static driver_intr_t sbus_overtemp;
205 static driver_intr_t sbus_pwrfail;
206 static int sbus_print_res(struct sbus_devinfo *);
208 static device_method_t sbus_methods[] = {
209 /* Device interface */
210 DEVMETHOD(device_probe, sbus_probe),
211 DEVMETHOD(device_attach, sbus_attach),
212 DEVMETHOD(device_shutdown, bus_generic_shutdown),
213 DEVMETHOD(device_suspend, bus_generic_suspend),
214 DEVMETHOD(device_resume, bus_generic_resume),
217 DEVMETHOD(bus_print_child, sbus_print_child),
218 DEVMETHOD(bus_probe_nomatch, sbus_probe_nomatch),
219 DEVMETHOD(bus_read_ivar, sbus_read_ivar),
220 DEVMETHOD(bus_alloc_resource, sbus_alloc_resource),
221 DEVMETHOD(bus_activate_resource, sbus_activate_resource),
222 DEVMETHOD(bus_deactivate_resource, sbus_deactivate_resource),
223 DEVMETHOD(bus_release_resource, sbus_release_resource),
224 DEVMETHOD(bus_setup_intr, sbus_setup_intr),
225 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
226 DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
227 DEVMETHOD(bus_get_resource_list, sbus_get_resource_list),
228 DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str),
229 DEVMETHOD(bus_get_dma_tag, sbus_get_dma_tag),
231 /* ofw_bus interface */
232 DEVMETHOD(ofw_bus_get_devinfo, sbus_get_devinfo),
233 DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
234 DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
235 DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
236 DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
237 DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
242 static driver_t sbus_driver = {
245 sizeof(struct sbus_softc),
248 static devclass_t sbus_devclass;
250 EARLY_DRIVER_MODULE(sbus, nexus, sbus_driver, sbus_devclass, 0, 0,
252 MODULE_DEPEND(sbus, nexus, 1, 1, 1);
253 MODULE_VERSION(sbus, 1);
255 #define OFW_SBUS_TYPE "sbus"
256 #define OFW_SBUS_NAME "sbus"
258 static const struct intr_controller sbus_ic = {
266 struct sbus_softc *sica_sc;
271 static const char *const sbus_order_first[] = {
278 sbus_inlist(const char *name, const char *const *list)
284 for (i = 0; list[i] != NULL; i++) {
285 if (strcmp(name, list[i]) == 0)
292 sbus_probe(device_t dev)
296 t = ofw_bus_get_type(dev);
297 if (((t == NULL || strcmp(t, OFW_SBUS_TYPE) != 0)) &&
298 strcmp(ofw_bus_get_name(dev), OFW_SBUS_NAME) != 0)
300 device_set_desc(dev, "U2S UPA-SBus bridge");
305 sbus_attach(device_t dev)
307 struct sbus_softc *sc;
308 struct sbus_devinfo *sdi;
309 struct sbus_icarg *sica;
310 struct sbus_ranges *range;
311 struct resource *res;
312 struct resource_list *rl;
314 bus_addr_t intrclr, intrmap, phys;
317 phandle_t child, node;
321 sc = device_get_softc(dev);
323 node = ofw_bus_get_node(dev);
326 sc->sc_sysio_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &i,
328 if (sc->sc_sysio_res == NULL)
329 panic("%s: cannot allocate device memory", __func__);
331 if (OF_getprop(node, "interrupts", &prop, sizeof(prop)) == -1)
332 panic("%s: cannot get IGN", __func__);
333 sc->sc_ign = INTIGN(prop);
334 sc->sc_cbustag = sbus_alloc_bustag(sc);
337 * Record clock frequency for synchronous SCSI.
338 * IS THIS THE CORRECT DEFAULT??
340 if (OF_getprop(node, "clock-frequency", &prop, sizeof(prop)) == -1)
342 sc->sc_clockfreq = prop;
344 device_printf(dev, "clock %d.%03d MHz\n", prop / 1000, prop % 1000);
347 * Collect address translations from the OBP.
349 if ((sc->sc_nrange = OF_getprop_alloc(node, "ranges",
350 sizeof(*range), (void **)&range)) == -1) {
351 panic("%s: error getting ranges property", __func__);
353 sc->sc_rd = (struct sbus_rd *)malloc(sizeof(*sc->sc_rd) * sc->sc_nrange,
355 if (sc->sc_rd == NULL)
356 panic("%s: cannot allocate rmans", __func__);
358 * Preallocate all space that the SBus bridge decodes, so that nothing
359 * else gets in the way; set up rmans etc.
361 rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev);
362 for (i = 0; i < sc->sc_nrange; i++) {
363 phys = range[i].poffset | ((bus_addr_t)range[i].pspace << 32);
364 size = range[i].size;
365 sc->sc_rd[i].rd_slot = range[i].cspace;
366 sc->sc_rd[i].rd_coffset = range[i].coffset;
367 sc->sc_rd[i].rd_cend = sc->sc_rd[i].rd_coffset + size;
368 j = resource_list_add_next(rl, SYS_RES_MEMORY, phys,
369 phys + size - 1, size);
370 if ((res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &j,
372 panic("%s: cannot allocate decoded range", __func__);
373 sc->sc_rd[i].rd_bushandle = rman_get_bushandle(res);
374 sc->sc_rd[i].rd_rman.rm_type = RMAN_ARRAY;
375 sc->sc_rd[i].rd_rman.rm_descr = "SBus Device Memory";
376 if (rman_init(&sc->sc_rd[i].rd_rman) != 0 ||
377 rman_manage_region(&sc->sc_rd[i].rd_rman, 0, size) != 0)
378 panic("%s: failed to set up memory rman", __func__);
379 sc->sc_rd[i].rd_poffset = phys;
380 sc->sc_rd[i].rd_pend = phys + size;
381 sc->sc_rd[i].rd_res = res;
383 free(range, M_OFWPROP);
386 * Get the SBus burst transfer size if burst transfers are supported.
388 if (OF_getprop(node, "up-burst-sizes", &sc->sc_burst,
389 sizeof(sc->sc_burst)) == -1 || sc->sc_burst == 0)
391 (SBUS_BURST64_DEF << SBUS_BURST64_SHIFT) | SBUS_BURST_DEF;
394 /* initalise the IOMMU */
396 /* punch in our copies */
397 sc->sc_is.is_pmaxaddr = IOMMU_MAXADDR(SBUS_IOMMU_BITS);
398 sc->sc_is.is_bustag = rman_get_bustag(sc->sc_sysio_res);
399 sc->sc_is.is_bushandle = rman_get_bushandle(sc->sc_sysio_res);
400 sc->sc_is.is_iommu = SBR_IOMMU;
401 sc->sc_is.is_dtag = SBR_IOMMU_TLB_TAG_DIAG;
402 sc->sc_is.is_ddram = SBR_IOMMU_TLB_DATA_DIAG;
403 sc->sc_is.is_dqueue = SBR_IOMMU_QUEUE_DIAG;
404 sc->sc_is.is_dva = SBR_IOMMU_SVADIAG;
405 sc->sc_is.is_dtcmp = 0;
406 sc->sc_is.is_sb[0] = SBR_STRBUF;
407 sc->sc_is.is_sb[1] = 0;
410 * Note: the SBus IOMMU ignores the high bits of an address, so a NULL
411 * DMA pointer will be translated by the first page of the IOTSB.
412 * To detect bugs we'll allocate and ignore the first entry.
414 iommu_init(device_get_nameunit(dev), &sc->sc_is, 3, -1, 1);
416 /* Create the DMA tag. */
417 if (bus_dma_tag_create(bus_get_dma_tag(dev), 8, 0,
418 sc->sc_is.is_pmaxaddr, ~0, NULL, NULL, sc->sc_is.is_pmaxaddr,
419 0xff, 0xffffffff, 0, NULL, NULL, &sc->sc_cdmatag) != 0)
420 panic("%s: bus_dma_tag_create failed", __func__);
421 /* Customize the tag. */
422 sc->sc_cdmatag->dt_cookie = &sc->sc_is;
423 sc->sc_cdmatag->dt_mt = &iommu_dma_methods;
426 * Hunt through all the interrupt mapping regs and register our
427 * interrupt controller for the corresponding interrupt vectors.
428 * We do this early in order to be able to catch stray interrupts.
430 for (i = 0; i <= SBUS_MAX_INO; i++) {
431 if (sbus_find_intrmap(sc, i, &intrmap, &intrclr) == 0)
433 sica = malloc(sizeof(*sica), M_DEVBUF, M_NOWAIT);
435 panic("%s: could not allocate interrupt controller "
436 "argument", __func__);
438 sica->sica_map = intrmap;
439 sica->sica_clr = intrclr;
442 "intr map (INO %d, %s) %#lx: %#lx, clr: %#lx\n",
443 i, (i & INTMAP_OBIO_MASK) == 0 ? "SBus slot" : "OBIO",
444 (u_long)intrmap, (u_long)SYSIO_READ8(sc, intrmap),
447 j = intr_controller_register(INTMAP_VEC(sc->sc_ign, i),
450 device_printf(dev, "could not register interrupt "
451 "controller for INO %d (%d)\n", i, j);
454 /* Enable the over-temperature and power-fail interrupts. */
456 sc->sc_ot_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i,
458 if (sc->sc_ot_ires == NULL ||
459 INTIGN(vec = rman_get_start(sc->sc_ot_ires)) != sc->sc_ign ||
460 INTVEC(SYSIO_READ8(sc, SBR_THERM_INT_MAP)) != vec ||
461 intr_vectors[vec].iv_ic != &sbus_ic ||
462 bus_setup_intr(dev, sc->sc_ot_ires, INTR_TYPE_MISC | INTR_FAST,
463 NULL, sbus_overtemp, sc, &sc->sc_ot_ihand) != 0)
464 panic("%s: failed to set up temperature interrupt", __func__);
466 sc->sc_pf_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &i,
468 if (sc->sc_pf_ires == NULL ||
469 INTIGN(vec = rman_get_start(sc->sc_pf_ires)) != sc->sc_ign ||
470 INTVEC(SYSIO_READ8(sc, SBR_POWER_INT_MAP)) != vec ||
471 intr_vectors[vec].iv_ic != &sbus_ic ||
472 bus_setup_intr(dev, sc->sc_pf_ires, INTR_TYPE_MISC | INTR_FAST,
473 NULL, sbus_pwrfail, sc, &sc->sc_pf_ihand) != 0)
474 panic("%s: failed to set up power fail interrupt", __func__);
476 /* Initialize the counter-timer. */
477 sparc64_counter_init(device_get_nameunit(dev),
478 rman_get_bustag(sc->sc_sysio_res),
479 rman_get_bushandle(sc->sc_sysio_res), SBR_TC0);
482 * Loop through ROM children, fixing any relative addresses
483 * and then configuring each device.
485 for (child = OF_child(node); child != 0; child = OF_peer(child)) {
486 if ((sdi = sbus_setup_dinfo(dev, sc, child)) == NULL)
489 * For devices where there are variants that are actually
490 * split into two SBus devices (as opposed to the first
491 * half of the device being a SBus device and the second
492 * half hanging off of the first one) like 'auxio' and
493 * 'SUNW,fdtwo' or 'dma' and 'esp' probe the SBus device
494 * which is a prerequisite to the driver attaching to the
495 * second one with a lower order. Saves us from dealing
496 * with different probe orders in the respective device
497 * drivers which generally is more hackish.
499 cdev = device_add_child_ordered(dev, (OF_child(child) == 0 &&
500 sbus_inlist(sdi->sdi_obdinfo.obd_name, sbus_order_first)) ?
501 SBUS_ORDER_FIRST : SBUS_ORDER_NORMAL, NULL, -1);
504 "<%s>: device_add_child_ordered failed\n",
505 sdi->sdi_obdinfo.obd_name);
506 sbus_destroy_dinfo(sdi);
509 device_set_ivars(cdev, sdi);
511 return (bus_generic_attach(dev));
514 static struct sbus_devinfo *
515 sbus_setup_dinfo(device_t dev, struct sbus_softc *sc, phandle_t node)
517 struct sbus_devinfo *sdi;
518 struct sbus_regs *reg;
519 u_int32_t base, iv, *intr;
520 int i, nreg, nintr, slot, rslot;
522 sdi = malloc(sizeof(*sdi), M_DEVBUF, M_ZERO | M_WAITOK);
523 if (ofw_bus_gen_setup_devinfo(&sdi->sdi_obdinfo, node) != 0) {
527 resource_list_init(&sdi->sdi_rl);
529 nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®);
531 if (sdi->sdi_obdinfo.obd_type == NULL ||
532 strcmp(sdi->sdi_obdinfo.obd_type, "hierarchical") != 0) {
533 device_printf(dev, "<%s>: incomplete\n",
534 sdi->sdi_obdinfo.obd_name);
538 for (i = 0; i < nreg; i++) {
539 base = reg[i].sbr_offset;
540 if (SBUS_ABS(base)) {
541 rslot = SBUS_ABS_TO_SLOT(base);
542 base = SBUS_ABS_TO_OFFSET(base);
544 rslot = reg[i].sbr_slot;
545 if (slot != -1 && slot != rslot) {
546 device_printf(dev, "<%s>: multiple slots\n",
547 sdi->sdi_obdinfo.obd_name);
548 free(reg, M_OFWPROP);
553 resource_list_add(&sdi->sdi_rl, SYS_RES_MEMORY, i,
554 base, base + reg[i].sbr_size, reg[i].sbr_size);
556 free(reg, M_OFWPROP);
558 sdi->sdi_slot = slot;
561 * The `interrupts' property contains the SBus interrupt level.
563 nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr),
566 for (i = 0; i < nintr; i++) {
569 * SBus card devices need the slot number encoded into
570 * the vector as this is generally not done.
572 if ((iv & INTMAP_OBIO_MASK) == 0)
574 iv = INTMAP_VEC(sc->sc_ign, iv);
575 resource_list_add(&sdi->sdi_rl, SYS_RES_IRQ, i,
578 free(intr, M_OFWPROP);
580 if (OF_getprop(node, "burst-sizes", &sdi->sdi_burstsz,
581 sizeof(sdi->sdi_burstsz)) == -1)
582 sdi->sdi_burstsz = sc->sc_burst;
584 sdi->sdi_burstsz &= sc->sc_burst;
585 if (OF_getprop(node, "clock-frequency", &sdi->sdi_clockfreq,
586 sizeof(sdi->sdi_clockfreq)) == -1)
587 sdi->sdi_clockfreq = sc->sc_clockfreq;
592 sbus_destroy_dinfo(sdi);
597 sbus_destroy_dinfo(struct sbus_devinfo *dinfo)
600 resource_list_free(&dinfo->sdi_rl);
601 ofw_bus_gen_destroy_devinfo(&dinfo->sdi_obdinfo);
602 free(dinfo, M_DEVBUF);
606 sbus_print_child(device_t dev, device_t child)
610 rv = bus_print_child_header(dev, child);
611 rv += sbus_print_res(device_get_ivars(child));
612 rv += bus_print_child_footer(dev, child);
617 sbus_probe_nomatch(device_t dev, device_t child)
621 device_printf(dev, "<%s>", ofw_bus_get_name(child));
622 sbus_print_res(device_get_ivars(child));
623 type = ofw_bus_get_type(child);
624 printf(" type %s (no driver attached)\n",
625 type != NULL ? type : "unknown");
629 sbus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
631 struct sbus_softc *sc;
632 struct sbus_devinfo *dinfo;
634 sc = device_get_softc(dev);
635 if ((dinfo = device_get_ivars(child)) == NULL)
638 case SBUS_IVAR_BURSTSZ:
639 *result = dinfo->sdi_burstsz;
641 case SBUS_IVAR_CLOCKFREQ:
642 *result = dinfo->sdi_clockfreq;
645 *result = sc->sc_ign;
648 *result = dinfo->sdi_slot;
656 static struct resource_list *
657 sbus_get_resource_list(device_t dev, device_t child)
659 struct sbus_devinfo *sdi;
661 sdi = device_get_ivars(child);
662 return (&sdi->sdi_rl);
666 sbus_intr_enable(void *arg)
668 struct intr_vector *iv = arg;
669 struct sbus_icarg *sica = iv->iv_icarg;
671 SYSIO_WRITE8(sica->sica_sc, sica->sica_map,
672 INTMAP_ENABLE(iv->iv_vec, iv->iv_mid));
676 sbus_intr_disable(void *arg)
678 struct intr_vector *iv = arg;
679 struct sbus_icarg *sica = iv->iv_icarg;
681 SYSIO_WRITE8(sica->sica_sc, sica->sica_map, iv->iv_vec);
685 sbus_intr_assign(void *arg)
687 struct intr_vector *iv = arg;
688 struct sbus_icarg *sica = iv->iv_icarg;
690 SYSIO_WRITE8(sica->sica_sc, sica->sica_map, INTMAP_TID(
691 SYSIO_READ8(sica->sica_sc, sica->sica_map), iv->iv_mid));
695 sbus_intr_clear(void *arg)
697 struct intr_vector *iv = arg;
698 struct sbus_icarg *sica = iv->iv_icarg;
700 SYSIO_WRITE8(sica->sica_sc, sica->sica_clr, INTCLR_IDLE);
704 sbus_find_intrmap(struct sbus_softc *sc, u_int ino, bus_addr_t *intrmapptr,
705 bus_addr_t *intrclrptr)
707 bus_addr_t intrclr, intrmap;
710 if (ino > SBUS_MAX_INO) {
711 device_printf(sc->sc_dev, "out of range INO %d requested\n",
716 if ((ino & INTMAP_OBIO_MASK) == 0) {
717 intrmap = SBR_SLOT0_INT_MAP + INTSLOT(ino) * 8;
718 intrclr = SBR_SLOT0_INT_CLR +
719 (INTSLOT(ino) * 8 * 8) + (INTPRI(ino) * 8);
722 for (i = 0, intrmap = SBR_SCSI_INT_MAP;
723 intrmap <= SBR_RESERVED_INT_MAP; intrmap += 8, i++) {
724 if (INTVEC(SYSIO_READ8(sc, intrmap)) ==
725 INTMAP_VEC(sc->sc_ign, ino)) {
726 intrclr = SBR_SCSI_INT_CLR + i * 8;
733 if (intrmapptr != NULL)
734 *intrmapptr = intrmap;
735 if (intrclrptr != NULL)
736 *intrclrptr = intrclr;
741 sbus_setup_intr(device_t dev, device_t child, struct resource *ires, int flags,
742 driver_filter_t *filt, driver_intr_t *intr, void *arg, void **cookiep)
744 struct sbus_softc *sc;
747 sc = device_get_softc(dev);
749 * Make sure the vector is fully specified and we registered
750 * our interrupt controller for it.
752 vec = rman_get_start(ires);
753 if (INTIGN(vec) != sc->sc_ign || intr_vectors[vec].iv_ic != &sbus_ic) {
754 device_printf(dev, "invalid interrupt vector 0x%lx\n", vec);
757 return (bus_generic_setup_intr(dev, child, ires, flags, filt, intr,
761 static struct resource *
762 sbus_alloc_resource(device_t bus, device_t child, int type, int *rid,
763 u_long start, u_long end, u_long count, u_int flags)
765 struct sbus_softc *sc;
768 struct resource_list *rl;
769 struct resource_list_entry *rle;
771 bus_space_handle_t bh;
775 int isdefault, needactivate, passthrough;
777 isdefault = (start == 0UL && end == ~0UL);
778 needactivate = flags & RF_ACTIVE;
779 passthrough = (device_get_parent(child) != bus);
781 sc = device_get_softc(bus);
782 rl = BUS_GET_RESOURCE_LIST(bus, child);
785 return (resource_list_alloc(rl, bus, child, type, rid, start,
789 rle = resource_list_find(rl, type, *rid);
792 if (rle->res != NULL)
793 panic("%s: resource entry is busy", __func__);
796 count = ulmax(count, rle->count);
797 end = ulmax(rle->end, start + count - 1);
801 bh = toffs = tend = 0;
803 while (device_get_parent(schild) != bus)
804 schild = device_get_parent(schild);
805 slot = sbus_get_slot(schild);
806 for (i = 0; i < sc->sc_nrange; i++) {
807 if (sc->sc_rd[i].rd_slot != slot ||
808 start < sc->sc_rd[i].rd_coffset ||
809 start > sc->sc_rd[i].rd_cend)
811 /* Disallow cross-range allocations. */
812 if (end > sc->sc_rd[i].rd_cend)
814 /* We've found the connection to the parent bus */
815 toffs = start - sc->sc_rd[i].rd_coffset;
816 tend = end - sc->sc_rd[i].rd_coffset;
817 rm = &sc->sc_rd[i].rd_rman;
818 bh = sc->sc_rd[i].rd_bushandle;
824 rv = rman_reserve_resource(rm, toffs, tend, count, flags,
828 rman_set_rid(rv, *rid);
829 rman_set_bustag(rv, sc->sc_cbustag);
830 rman_set_bushandle(rv, bh + rman_get_start(rv));
832 if (bus_activate_resource(child, type, *rid, rv)) {
833 rman_release_resource(rv);
846 sbus_activate_resource(device_t bus, device_t child, int type, int rid,
852 if (type == SYS_RES_IRQ) {
853 return (BUS_ACTIVATE_RESOURCE(device_get_parent(bus),
854 child, type, rid, r));
856 if (type == SYS_RES_MEMORY) {
858 * Need to memory-map the device space, as some drivers
859 * depend on the virtual address being set and usable.
861 error = sparc64_bus_mem_map(rman_get_bustag(r),
862 rman_get_bushandle(r), rman_get_size(r), 0, 0, &p);
865 rman_set_virtual(r, p);
867 return (rman_activate_resource(r));
871 sbus_deactivate_resource(device_t bus, device_t child, int type, int rid,
875 if (type == SYS_RES_IRQ) {
876 return (BUS_DEACTIVATE_RESOURCE(device_get_parent(bus),
877 child, type, rid, r));
879 if (type == SYS_RES_MEMORY) {
880 sparc64_bus_mem_unmap(rman_get_virtual(r), rman_get_size(r));
881 rman_set_virtual(r, NULL);
883 return (rman_deactivate_resource(r));
887 sbus_release_resource(device_t bus, device_t child, int type, int rid,
890 struct resource_list *rl;
891 struct resource_list_entry *rle;
892 int error, passthrough;
894 passthrough = (device_get_parent(child) != bus);
895 rl = BUS_GET_RESOURCE_LIST(bus, child);
896 if (type == SYS_RES_IRQ)
897 return (resource_list_release(rl, bus, child, type, rid, r));
898 if ((rman_get_flags(r) & RF_ACTIVE) != 0) {
899 error = bus_deactivate_resource(child, type, rid, r);
903 error = rman_release_resource(r);
904 if (error != 0 || passthrough)
906 rle = resource_list_find(rl, type, rid);
908 panic("%s: cannot find resource", __func__);
909 if (rle->res == NULL)
910 panic("%s: resource entry is not busy", __func__);
916 sbus_get_dma_tag(device_t bus, device_t child)
918 struct sbus_softc *sc;
920 sc = device_get_softc(bus);
921 return (sc->sc_cdmatag);
924 static const struct ofw_bus_devinfo *
925 sbus_get_devinfo(device_t bus, device_t child)
927 struct sbus_devinfo *sdi;
929 sdi = device_get_ivars(child);
930 return (&sdi->sdi_obdinfo);
934 * Handle an overtemp situation.
936 * SPARCs have temperature sensors which generate interrupts
937 * if the machine's temperature exceeds a certain threshold.
938 * This handles the interrupt and powers off the machine.
939 * The same needs to be done to PCI controller drivers.
942 sbus_overtemp(void *arg)
946 /* As the interrupt is cleared we may be called multiple times. */
950 printf("DANGER: OVER TEMPERATURE detected\nShutting down NOW.\n");
951 shutdown_nice(RB_POWEROFF);
954 /* Try to shut down in time in case of power failure. */
956 sbus_pwrfail(void *arg)
960 /* As the interrupt is cleared we may be called multiple times. */
964 printf("Power failure detected\nShutting down NOW.\n");
968 static bus_space_tag_t
969 sbus_alloc_bustag(struct sbus_softc *sc)
973 sbt = (bus_space_tag_t)malloc(sizeof(struct bus_space_tag), M_DEVBUF,
976 panic("%s: out of memory", __func__);
978 sbt->bst_cookie = sc;
979 sbt->bst_parent = rman_get_bustag(sc->sc_sysio_res);
980 sbt->bst_type = SBUS_BUS_SPACE;
985 sbus_print_res(struct sbus_devinfo *sdi)
990 rv += resource_list_print_type(&sdi->sdi_rl, "mem", SYS_RES_MEMORY,
992 rv += resource_list_print_type(&sdi->sdi_rl, "irq", SYS_RES_IRQ,