1/*-
2 * Copyright (c) 1998 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Paul Kranenburg.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
23 *
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.
35 */
36/*-
37 * Copyright (c) 1992, 1993
38 * The Regents of the University of California. All rights reserved.
39 *
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.
43 *
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.
48 *
49 * Redistribution and use in source and binary forms, with or without
50 * modification, are permitted provided that the following conditions
51 * are met:
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.
60 *
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
71 * SUCH DAMAGE.
72 */
73/*-
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.
78 *
79 * Redistribution and use in source and binary forms, with or without
80 * modification, are permitted provided that the following conditions
81 * are met:
82 * 1. Redistributions of source code must retain the above copyright
83 * notice, this list of conditions and the following disclaimer.
84 *
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
95 * SUCH DAMAGE.
96 *
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
99 */
100
101#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 1998 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to The NetBSD Foundation
6 * by Paul Kranenburg.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
23 *
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.
35 */
36/*-
37 * Copyright (c) 1992, 1993
38 * The Regents of the University of California. All rights reserved.
39 *
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.
43 *
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.
48 *
49 * Redistribution and use in source and binary forms, with or without
50 * modification, are permitted provided that the following conditions
51 * are met:
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.
60 *
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
71 * SUCH DAMAGE.
72 */
73/*-
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.
78 *
79 * Redistribution and use in source and binary forms, with or without
80 * modification, are permitted provided that the following conditions
81 * are met:
82 * 1. Redistributions of source code must retain the above copyright
83 * notice, this list of conditions and the following disclaimer.
84 *
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
95 * SUCH DAMAGE.
96 *
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
99 */
100
101#include <sys/cdefs.h>
|
103
104/*
105 * SBus support.
106 */
107
108#include <sys/param.h>
109#include <sys/systm.h>
110#include <sys/bus.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>
118
119#include <dev/ofw/ofw_bus.h>
120#include <dev/ofw/ofw_bus_subr.h>
121#include <dev/ofw/openfirm.h>
122
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>
129
130#include <sparc64/sbus/ofw_sbus.h>
131#include <sparc64/sbus/sbusreg.h>
132#include <sparc64/sbus/sbusvar.h>
133
134struct sbus_devinfo {
135 int sdi_burstsz;
136 int sdi_clockfreq;
137 int sdi_slot;
138
139 struct ofw_bus_devinfo sdi_obdinfo;
140 struct resource_list sdi_rl;
141};
142
143/* Range descriptor, allocated for each sc_range. */
144struct sbus_rd {
145 bus_addr_t rd_poffset;
146 bus_addr_t rd_pend;
147 int rd_slot;
148 bus_addr_t rd_coffset;
149 bus_addr_t rd_cend;
150 struct rman rd_rman;
151 bus_space_handle_t rd_bushandle;
152 struct resource *rd_res;
153};
154
155struct sbus_softc {
156 device_t sc_dev;
157 bus_dma_tag_t sc_cdmatag;
158 bus_space_tag_t sc_cbustag;
159 int sc_clockfreq; /* clock frequency (in Hz) */
160 int sc_nrange;
161 struct sbus_rd *sc_rd;
162 int sc_burst; /* burst transfer sizes supp. */
163
164 struct resource *sc_sysio_res;
165 int sc_ign; /* IGN for this sysio */
166 struct iommu_state sc_is; /* IOMMU state (iommuvar.h) */
167
168 struct resource *sc_ot_ires;
169 void *sc_ot_ihand;
170 struct resource *sc_pf_ires;
171 void *sc_pf_ihand;
172};
173
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))
178
179static device_probe_t sbus_probe;
180static device_attach_t sbus_attach;
181static bus_print_child_t sbus_print_child;
182static bus_probe_nomatch_t sbus_probe_nomatch;
183static bus_read_ivar_t sbus_read_ivar;
184static bus_get_resource_list_t sbus_get_resource_list;
185static bus_setup_intr_t sbus_setup_intr;
186static bus_alloc_resource_t sbus_alloc_resource;
187static bus_release_resource_t sbus_release_resource;
188static bus_activate_resource_t sbus_activate_resource;
189static bus_deactivate_resource_t sbus_deactivate_resource;
190static bus_get_dma_tag_t sbus_get_dma_tag;
191static ofw_bus_get_devinfo_t sbus_get_devinfo;
192
193static int sbus_inlist(const char *, const char **);
194static struct sbus_devinfo * sbus_setup_dinfo(device_t, struct sbus_softc *,
195 phandle_t);
196static void sbus_destroy_dinfo(struct sbus_devinfo *);
197static void sbus_intr_enable(void *);
198static void sbus_intr_disable(void *);
199static void sbus_intr_assign(void *);
200static void sbus_intr_clear(void *);
201static int sbus_find_intrmap(struct sbus_softc *, u_int, bus_addr_t *,
202 bus_addr_t *);
203static bus_space_tag_t sbus_alloc_bustag(struct sbus_softc *);
204static driver_intr_t sbus_overtemp;
205static driver_intr_t sbus_pwrfail;
206static int sbus_print_res(struct sbus_devinfo *);
207
208static 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),
215
216 /* Bus interface */
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_setup_intr, sbus_setup_intr),
221 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
222 DEVMETHOD(bus_alloc_resource, sbus_alloc_resource),
223 DEVMETHOD(bus_activate_resource, sbus_activate_resource),
224 DEVMETHOD(bus_deactivate_resource, sbus_deactivate_resource),
225 DEVMETHOD(bus_release_resource, sbus_release_resource),
226 DEVMETHOD(bus_get_resource_list, sbus_get_resource_list),
227 DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
228 DEVMETHOD(bus_get_dma_tag, sbus_get_dma_tag),
229
230 /* ofw_bus interface */
231 DEVMETHOD(ofw_bus_get_devinfo, sbus_get_devinfo),
232 DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
233 DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
234 DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
235 DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
236 DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
237
238 { 0, 0 }
239};
240
241static driver_t sbus_driver = {
242 "sbus",
243 sbus_methods,
244 sizeof(struct sbus_softc),
245};
246
247static devclass_t sbus_devclass;
248
249DRIVER_MODULE(sbus, nexus, sbus_driver, sbus_devclass, 0, 0);
| 103
104/*
105 * SBus support.
106 */
107
108#include <sys/param.h>
109#include <sys/systm.h>
110#include <sys/bus.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>
118
119#include <dev/ofw/ofw_bus.h>
120#include <dev/ofw/ofw_bus_subr.h>
121#include <dev/ofw/openfirm.h>
122
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>
129
130#include <sparc64/sbus/ofw_sbus.h>
131#include <sparc64/sbus/sbusreg.h>
132#include <sparc64/sbus/sbusvar.h>
133
134struct sbus_devinfo {
135 int sdi_burstsz;
136 int sdi_clockfreq;
137 int sdi_slot;
138
139 struct ofw_bus_devinfo sdi_obdinfo;
140 struct resource_list sdi_rl;
141};
142
143/* Range descriptor, allocated for each sc_range. */
144struct sbus_rd {
145 bus_addr_t rd_poffset;
146 bus_addr_t rd_pend;
147 int rd_slot;
148 bus_addr_t rd_coffset;
149 bus_addr_t rd_cend;
150 struct rman rd_rman;
151 bus_space_handle_t rd_bushandle;
152 struct resource *rd_res;
153};
154
155struct sbus_softc {
156 device_t sc_dev;
157 bus_dma_tag_t sc_cdmatag;
158 bus_space_tag_t sc_cbustag;
159 int sc_clockfreq; /* clock frequency (in Hz) */
160 int sc_nrange;
161 struct sbus_rd *sc_rd;
162 int sc_burst; /* burst transfer sizes supp. */
163
164 struct resource *sc_sysio_res;
165 int sc_ign; /* IGN for this sysio */
166 struct iommu_state sc_is; /* IOMMU state (iommuvar.h) */
167
168 struct resource *sc_ot_ires;
169 void *sc_ot_ihand;
170 struct resource *sc_pf_ires;
171 void *sc_pf_ihand;
172};
173
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))
178
179static device_probe_t sbus_probe;
180static device_attach_t sbus_attach;
181static bus_print_child_t sbus_print_child;
182static bus_probe_nomatch_t sbus_probe_nomatch;
183static bus_read_ivar_t sbus_read_ivar;
184static bus_get_resource_list_t sbus_get_resource_list;
185static bus_setup_intr_t sbus_setup_intr;
186static bus_alloc_resource_t sbus_alloc_resource;
187static bus_release_resource_t sbus_release_resource;
188static bus_activate_resource_t sbus_activate_resource;
189static bus_deactivate_resource_t sbus_deactivate_resource;
190static bus_get_dma_tag_t sbus_get_dma_tag;
191static ofw_bus_get_devinfo_t sbus_get_devinfo;
192
193static int sbus_inlist(const char *, const char **);
194static struct sbus_devinfo * sbus_setup_dinfo(device_t, struct sbus_softc *,
195 phandle_t);
196static void sbus_destroy_dinfo(struct sbus_devinfo *);
197static void sbus_intr_enable(void *);
198static void sbus_intr_disable(void *);
199static void sbus_intr_assign(void *);
200static void sbus_intr_clear(void *);
201static int sbus_find_intrmap(struct sbus_softc *, u_int, bus_addr_t *,
202 bus_addr_t *);
203static bus_space_tag_t sbus_alloc_bustag(struct sbus_softc *);
204static driver_intr_t sbus_overtemp;
205static driver_intr_t sbus_pwrfail;
206static int sbus_print_res(struct sbus_devinfo *);
207
208static 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),
215
216 /* Bus interface */
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_setup_intr, sbus_setup_intr),
221 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
222 DEVMETHOD(bus_alloc_resource, sbus_alloc_resource),
223 DEVMETHOD(bus_activate_resource, sbus_activate_resource),
224 DEVMETHOD(bus_deactivate_resource, sbus_deactivate_resource),
225 DEVMETHOD(bus_release_resource, sbus_release_resource),
226 DEVMETHOD(bus_get_resource_list, sbus_get_resource_list),
227 DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource),
228 DEVMETHOD(bus_get_dma_tag, sbus_get_dma_tag),
229
230 /* ofw_bus interface */
231 DEVMETHOD(ofw_bus_get_devinfo, sbus_get_devinfo),
232 DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
233 DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
234 DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
235 DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
236 DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
237
238 { 0, 0 }
239};
240
241static driver_t sbus_driver = {
242 "sbus",
243 sbus_methods,
244 sizeof(struct sbus_softc),
245};
246
247static devclass_t sbus_devclass;
248
249DRIVER_MODULE(sbus, nexus, sbus_driver, sbus_devclass, 0, 0);
|
250
251#define OFW_SBUS_TYPE "sbus"
252#define OFW_SBUS_NAME "sbus"
253
254static const struct intr_controller sbus_ic = {
255 sbus_intr_enable,
256 sbus_intr_disable,
257 sbus_intr_assign,
258 sbus_intr_clear
259};
260
261struct sbus_icarg {
262 struct sbus_softc *sica_sc;
263 bus_addr_t sica_map;
264 bus_addr_t sica_clr;
265};
266
267static const char *sbus_order_first[] = {
268 "auxio",
269 "dma",
270 NULL
271};
272
273static int
274sbus_inlist(const char *name, const char **list)
275{
276 int i;
277
278 if (name == NULL)
279 return (0);
280 for (i = 0; list[i] != NULL; i++) {
281 if (strcmp(name, list[i]) == 0)
282 return (1);
283 }
284 return (0);
285}
286
287static int
288sbus_probe(device_t dev)
289{
290 const char *t;
291
292 t = ofw_bus_get_type(dev);
293 if (((t == NULL || strcmp(t, OFW_SBUS_TYPE) != 0)) &&
294 strcmp(ofw_bus_get_name(dev), OFW_SBUS_NAME) != 0)
295 return (ENXIO);
296 device_set_desc(dev, "U2S UPA-SBus bridge");
297 return (0);
298}
299
300static int
301sbus_attach(device_t dev)
302{
303 struct sbus_softc *sc;
304 struct sbus_devinfo *sdi;
305 struct sbus_icarg *sica;
306 struct sbus_ranges *range;
307 struct resource *res;
308 struct resource_list *rl;
309 device_t cdev;
310 bus_addr_t intrclr, intrmap, phys;
311 bus_size_t size;
312 u_long vec;
313 phandle_t child, node;
314 int clock, i, intr, rid;
315
316 sc = device_get_softc(dev);
317 sc->sc_dev = dev;
318 node = ofw_bus_get_node(dev);
319
320 rid = 0;
321 sc->sc_sysio_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
322 RF_ACTIVE);
323 if (sc->sc_sysio_res == NULL)
324 panic("%s: cannot allocate device memory", __func__);
325
326 if (OF_getprop(node, "interrupts", &intr, sizeof(intr)) == -1)
327 panic("%s: cannot get IGN", __func__);
328 sc->sc_ign = INTIGN(intr);
329 sc->sc_cbustag = sbus_alloc_bustag(sc);
330
331 /*
332 * Record clock frequency for synchronous SCSI.
333 * IS THIS THE CORRECT DEFAULT??
334 */
335 if (OF_getprop(node, "clock-frequency", &clock, sizeof(clock)) == -1)
336 clock = 25000000;
337 sc->sc_clockfreq = clock;
338 clock /= 1000;
339 device_printf(dev, "clock %d.%03d MHz\n", clock / 1000, clock % 1000);
340
341 /*
342 * Collect address translations from the OBP.
343 */
344 if ((sc->sc_nrange = OF_getprop_alloc(node, "ranges",
345 sizeof(*range), (void **)&range)) == -1) {
346 panic("%s: error getting ranges property", __func__);
347 }
348 sc->sc_rd = (struct sbus_rd *)malloc(sizeof(*sc->sc_rd) * sc->sc_nrange,
349 M_DEVBUF, M_NOWAIT);
350 if (sc->sc_rd == NULL)
351 panic("%s: cannot allocate rmans", __func__);
352 /*
353 * Preallocate all space that the SBus bridge decodes, so that nothing
354 * else gets in the way; set up rmans etc.
355 */
356 rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev);
357 for (i = 0; i < sc->sc_nrange; i++) {
358 phys = range[i].poffset | ((bus_addr_t)range[i].pspace << 32);
359 size = range[i].size;
360 sc->sc_rd[i].rd_slot = range[i].cspace;
361 sc->sc_rd[i].rd_coffset = range[i].coffset;
362 sc->sc_rd[i].rd_cend = sc->sc_rd[i].rd_coffset + size;
363 rid = resource_list_add_next(rl, SYS_RES_MEMORY, phys,
364 phys + size - 1, size);
365 if ((res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
366 RF_ACTIVE)) == NULL)
367 panic("%s: cannot allocate decoded range", __func__);
368 sc->sc_rd[i].rd_bushandle = rman_get_bushandle(res);
369 sc->sc_rd[i].rd_rman.rm_type = RMAN_ARRAY;
370 sc->sc_rd[i].rd_rman.rm_descr = "SBus Device Memory";
371 if (rman_init(&sc->sc_rd[i].rd_rman) != 0 ||
372 rman_manage_region(&sc->sc_rd[i].rd_rman, 0, size) != 0)
373 panic("%s: failed to set up memory rman", __func__);
374 sc->sc_rd[i].rd_poffset = phys;
375 sc->sc_rd[i].rd_pend = phys + size;
376 sc->sc_rd[i].rd_res = res;
377 }
378 free(range, M_OFWPROP);
379
380 /*
381 * Get the SBus burst transfer size if burst transfers are supported.
382 * XXX: is the default correct?
383 */
384 if (OF_getprop(node, "burst-sizes", &sc->sc_burst,
385 sizeof(sc->sc_burst)) == -1 || sc->sc_burst == 0)
386 sc->sc_burst = SBUS_BURST_DEF;
387
388 /* initalise the IOMMU */
389
390 /* punch in our copies */
391 sc->sc_is.is_pmaxaddr = IOMMU_MAXADDR(SBUS_IOMMU_BITS);
392 sc->sc_is.is_bustag = rman_get_bustag(sc->sc_sysio_res);
393 sc->sc_is.is_bushandle = rman_get_bushandle(sc->sc_sysio_res);
394 sc->sc_is.is_iommu = SBR_IOMMU;
395 sc->sc_is.is_dtag = SBR_IOMMU_TLB_TAG_DIAG;
396 sc->sc_is.is_ddram = SBR_IOMMU_TLB_DATA_DIAG;
397 sc->sc_is.is_dqueue = SBR_IOMMU_QUEUE_DIAG;
398 sc->sc_is.is_dva = SBR_IOMMU_SVADIAG;
399 sc->sc_is.is_dtcmp = 0;
400 sc->sc_is.is_sb[0] = SBR_STRBUF;
401 sc->sc_is.is_sb[1] = 0;
402
403 /*
404 * Note: the SBus IOMMU ignores the high bits of an address, so a NULL
405 * DMA pointer will be translated by the first page of the IOTSB.
406 * To detect bugs we'll allocate and ignore the first entry.
407 */
408 iommu_init(device_get_nameunit(dev), &sc->sc_is, 3, -1, 1);
409
410 /* Create the DMA tag. */
411 if (bus_dma_tag_create(bus_get_dma_tag(dev), 8, 0,
412 sc->sc_is.is_pmaxaddr, ~0, NULL, NULL, sc->sc_is.is_pmaxaddr,
413 0xff, 0xffffffff, 0, NULL, NULL, &sc->sc_cdmatag) != 0)
414 panic("%s: bus_dma_tag_create failed", __func__);
415 /* Customize the tag. */
416 sc->sc_cdmatag->dt_cookie = &sc->sc_is;
417 sc->sc_cdmatag->dt_mt = &iommu_dma_methods;
418
419 /*
420 * Hunt through all the interrupt mapping regs and register our
421 * interrupt controller for the corresponding interrupt vectors.
422 */
423 for (i = 0; i <= SBUS_MAX_INO; i++) {
424 if (sbus_find_intrmap(sc, i, &intrmap, &intrclr) == 0)
425 continue;
426 sica = malloc(sizeof(*sica), M_DEVBUF, M_NOWAIT);
427 if (sica == NULL)
428 panic("%s: could not allocate interrupt controller "
429 "argument", __func__);
430 sica->sica_sc = sc;
431 sica->sica_map = intrmap;
432 sica->sica_clr = intrclr;
433#ifdef SBUS_DEBUG
434 device_printf(dev,
435 "intr map (INO %d, %s) %#lx: %#lx, clr: %#lx\n",
436 i, (i & INTMAP_OBIO_MASK) == 0 ? "SBus slot" : "OBIO",
437 (u_long)intrmap, (u_long)SYSIO_READ8(sc, intrmap),
438 (u_long)intrclr);
439#endif
440 if (intr_controller_register(INTMAP_VEC(sc->sc_ign, i),
441 &sbus_ic, sica) != 0)
442 panic("%s: could not register interrupt controller "
443 "for INO %d", __func__, i);
444 }
445
446 /* Enable the over-temperature and power-fail interrupts. */
447 rid = 4;
448 sc->sc_ot_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
449 RF_ACTIVE);
450 if (sc->sc_ot_ires == NULL ||
451 INTIGN(vec = rman_get_start(sc->sc_ot_ires)) != sc->sc_ign ||
452 INTVEC(SYSIO_READ8(sc, SBR_THERM_INT_MAP)) != vec ||
453 intr_vectors[vec].iv_ic != &sbus_ic ||
454 bus_setup_intr(dev, sc->sc_ot_ires, INTR_TYPE_MISC,
455 NULL, sbus_overtemp, sc, &sc->sc_ot_ihand) != 0)
456 panic("%s: failed to set up temperature interrupt", __func__);
457 rid = 3;
458 sc->sc_pf_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
459 RF_ACTIVE);
460 if (sc->sc_pf_ires == NULL ||
461 INTIGN(vec = rman_get_start(sc->sc_pf_ires)) != sc->sc_ign ||
462 INTVEC(SYSIO_READ8(sc, SBR_POWER_INT_MAP)) != vec ||
463 intr_vectors[vec].iv_ic != &sbus_ic ||
464 bus_setup_intr(dev, sc->sc_pf_ires, INTR_TYPE_MISC,
465 NULL, sbus_pwrfail, sc, &sc->sc_pf_ihand) != 0)
466 panic("%s: failed to set up power fail interrupt", __func__);
467
468 /* Initialize the counter-timer. */
469 sparc64_counter_init(device_get_nameunit(dev),
470 rman_get_bustag(sc->sc_sysio_res),
471 rman_get_bushandle(sc->sc_sysio_res), SBR_TC0);
472
473 /*
474 * Loop through ROM children, fixing any relative addresses
475 * and then configuring each device.
476 */
477 for (child = OF_child(node); child != 0; child = OF_peer(child)) {
478 if ((sdi = sbus_setup_dinfo(dev, sc, child)) == NULL)
479 continue;
480 /*
481 * For devices where there are variants that are actually
482 * split into two SBus devices (as opposed to the first
483 * half of the device being a SBus device and the second
484 * half hanging off of the first one) like 'auxio' and
485 * 'SUNW,fdtwo' or 'dma' and 'esp' probe the SBus device
486 * which is a prerequisite to the driver attaching to the
487 * second one with a lower order. Saves us from dealing
488 * with different probe orders in the respective device
489 * drivers which generally is more hackish.
490 */
491 cdev = device_add_child_ordered(dev, (OF_child(child) == 0 &&
492 sbus_inlist(sdi->sdi_obdinfo.obd_name, sbus_order_first)) ?
493 SBUS_ORDER_FIRST : SBUS_ORDER_NORMAL, NULL, -1);
494 if (cdev == NULL) {
495 device_printf(dev,
496 "<%s>: device_add_child_ordered failed\n",
497 sdi->sdi_obdinfo.obd_name);
498 sbus_destroy_dinfo(sdi);
499 continue;
500 }
501 device_set_ivars(cdev, sdi);
502 }
503 return (bus_generic_attach(dev));
504}
505
506static struct sbus_devinfo *
507sbus_setup_dinfo(device_t dev, struct sbus_softc *sc, phandle_t node)
508{
509 struct sbus_devinfo *sdi;
510 struct sbus_regs *reg;
511 u_int32_t base, iv, *intr;
512 int i, nreg, nintr, slot, rslot;
513
514 sdi = malloc(sizeof(*sdi), M_DEVBUF, M_ZERO | M_WAITOK);
515 if (ofw_bus_gen_setup_devinfo(&sdi->sdi_obdinfo, node) != 0) {
516 free(sdi, M_DEVBUF);
517 return (NULL);
518 }
519 resource_list_init(&sdi->sdi_rl);
520 slot = -1;
521 nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®);
522 if (nreg == -1) {
523 if (sdi->sdi_obdinfo.obd_type == NULL ||
524 strcmp(sdi->sdi_obdinfo.obd_type, "hierarchical") != 0) {
525 device_printf(dev, "<%s>: incomplete\n",
526 sdi->sdi_obdinfo.obd_name);
527 goto fail;
528 }
529 } else {
530 for (i = 0; i < nreg; i++) {
531 base = reg[i].sbr_offset;
532 if (SBUS_ABS(base)) {
533 rslot = SBUS_ABS_TO_SLOT(base);
534 base = SBUS_ABS_TO_OFFSET(base);
535 } else
536 rslot = reg[i].sbr_slot;
537 if (slot != -1 && slot != rslot) {
538 device_printf(dev, "<%s>: multiple slots\n",
539 sdi->sdi_obdinfo.obd_name);
540 free(reg, M_OFWPROP);
541 goto fail;
542 }
543 slot = rslot;
544
545 resource_list_add(&sdi->sdi_rl, SYS_RES_MEMORY, i,
546 base, base + reg[i].sbr_size, reg[i].sbr_size);
547 }
548 free(reg, M_OFWPROP);
549 }
550 sdi->sdi_slot = slot;
551
552 /*
553 * The `interrupts' property contains the SBus interrupt level.
554 */
555 nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr),
556 (void **)&intr);
557 if (nintr != -1) {
558 for (i = 0; i < nintr; i++) {
559 iv = intr[i];
560 /*
561 * SBus card devices need the slot number encoded into
562 * the vector as this is generally not done.
563 */
564 if ((iv & INTMAP_OBIO_MASK) == 0)
565 iv |= slot << 3;
566 iv = INTMAP_VEC(sc->sc_ign, iv);
567 resource_list_add(&sdi->sdi_rl, SYS_RES_IRQ, i,
568 iv, iv, 1);
569 }
570 free(intr, M_OFWPROP);
571 }
572 if (OF_getprop(node, "burst-sizes", &sdi->sdi_burstsz,
573 sizeof(sdi->sdi_burstsz)) == -1)
574 sdi->sdi_burstsz = sc->sc_burst;
575 else
576 sdi->sdi_burstsz &= sc->sc_burst;
577 if (OF_getprop(node, "clock-frequency", &sdi->sdi_clockfreq,
578 sizeof(sdi->sdi_clockfreq)) == -1)
579 sdi->sdi_clockfreq = sc->sc_clockfreq;
580
581 return (sdi);
582
583fail:
584 sbus_destroy_dinfo(sdi);
585 return (NULL);
586}
587
588static void
589sbus_destroy_dinfo(struct sbus_devinfo *dinfo)
590{
591
592 resource_list_free(&dinfo->sdi_rl);
593 ofw_bus_gen_destroy_devinfo(&dinfo->sdi_obdinfo);
594 free(dinfo, M_DEVBUF);
595}
596
597static int
598sbus_print_child(device_t dev, device_t child)
599{
600 int rv;
601
602 rv = bus_print_child_header(dev, child);
603 rv += sbus_print_res(device_get_ivars(child));
604 rv += bus_print_child_footer(dev, child);
605 return (rv);
606}
607
608static void
609sbus_probe_nomatch(device_t dev, device_t child)
610{
611 const char *type;
612
613 device_printf(dev, "<%s>", ofw_bus_get_name(child));
614 sbus_print_res(device_get_ivars(child));
615 type = ofw_bus_get_type(child);
616 printf(" type %s (no driver attached)\n",
617 type != NULL ? type : "unknown");
618}
619
620static int
621sbus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
622{
623 struct sbus_softc *sc;
624 struct sbus_devinfo *dinfo;
625
626 sc = device_get_softc(dev);
627 if ((dinfo = device_get_ivars(child)) == NULL)
628 return (ENOENT);
629 switch (which) {
630 case SBUS_IVAR_BURSTSZ:
631 *result = dinfo->sdi_burstsz;
632 break;
633 case SBUS_IVAR_CLOCKFREQ:
634 *result = dinfo->sdi_clockfreq;
635 break;
636 case SBUS_IVAR_IGN:
637 *result = sc->sc_ign;
638 break;
639 case SBUS_IVAR_SLOT:
640 *result = dinfo->sdi_slot;
641 break;
642 default:
643 return (ENOENT);
644 }
645 return (0);
646}
647
648static struct resource_list *
649sbus_get_resource_list(device_t dev, device_t child)
650{
651 struct sbus_devinfo *sdi;
652
653 sdi = device_get_ivars(child);
654 return (&sdi->sdi_rl);
655}
656
657static void
658sbus_intr_enable(void *arg)
659{
660 struct intr_vector *iv = arg;
661 struct sbus_icarg *sica = iv->iv_icarg;
662
663 SYSIO_WRITE8(sica->sica_sc, sica->sica_map,
664 INTMAP_ENABLE(iv->iv_vec, iv->iv_mid));
665}
666
667static void
668sbus_intr_disable(void *arg)
669{
670 struct intr_vector *iv = arg;
671 struct sbus_icarg *sica = iv->iv_icarg;
672
673 SYSIO_WRITE8(sica->sica_sc, sica->sica_map, iv->iv_vec);
674}
675
676static void
677sbus_intr_assign(void *arg)
678{
679 struct intr_vector *iv = arg;
680 struct sbus_icarg *sica = iv->iv_icarg;
681
682 SYSIO_WRITE8(sica->sica_sc, sica->sica_map, INTMAP_TID(
683 SYSIO_READ8(sica->sica_sc, sica->sica_map), iv->iv_mid));
684}
685
686static void
687sbus_intr_clear(void *arg)
688{
689 struct intr_vector *iv = arg;
690 struct sbus_icarg *sica = iv->iv_icarg;
691
692 SYSIO_WRITE8(sica->sica_sc, sica->sica_clr, 0);
693}
694
695static int
696sbus_find_intrmap(struct sbus_softc *sc, u_int ino, bus_addr_t *intrmapptr,
697 bus_addr_t *intrclrptr)
698{
699 bus_addr_t intrclr, intrmap;
700 int i;
701
702 if (ino > SBUS_MAX_INO) {
703 device_printf(sc->sc_dev, "out of range INO %d requested\n",
704 ino);
705 return (0);
706 }
707
708 if ((ino & INTMAP_OBIO_MASK) == 0) {
709 intrmap = SBR_SLOT0_INT_MAP + INTSLOT(ino) * 8;
710 intrclr = SBR_SLOT0_INT_CLR +
711 (INTSLOT(ino) * 8 * 8) + (INTPRI(ino) * 8);
712 } else {
713 intrclr = 0;
714 for (i = 0, intrmap = SBR_SCSI_INT_MAP;
715 intrmap <= SBR_RESERVED_INT_MAP; intrmap += 8, i++) {
716 if (INTVEC(SYSIO_READ8(sc, intrmap)) ==
717 INTMAP_VEC(sc->sc_ign, ino)) {
718 intrclr = SBR_SCSI_INT_CLR + i * 8;
719 break;
720 }
721 }
722 if (intrclr == 0)
723 return (0);
724 }
725 if (intrmapptr != NULL)
726 *intrmapptr = intrmap;
727 if (intrclrptr != NULL)
728 *intrclrptr = intrclr;
729 return (1);
730}
731
732static int
733sbus_setup_intr(device_t dev, device_t child, struct resource *ires, int flags,
734 driver_filter_t *filt, driver_intr_t *intr, void *arg, void **cookiep)
735{
736 struct sbus_softc *sc;
737 u_long vec;
738
739 sc = device_get_softc(dev);
740 /*
741 * Make sure the vector is fully specified and we registered
742 * our interrupt controller for it.
743 */
744 vec = rman_get_start(ires);
745 if (INTIGN(vec) != sc->sc_ign || intr_vectors[vec].iv_ic != &sbus_ic) {
746 device_printf(dev, "invalid interrupt vector 0x%lx\n", vec);
747 return (EINVAL);
748 }
749 return (bus_generic_setup_intr(dev, child, ires, flags, filt, intr,
750 arg, cookiep));
751}
752
753static struct resource *
754sbus_alloc_resource(device_t bus, device_t child, int type, int *rid,
755 u_long start, u_long end, u_long count, u_int flags)
756{
757 struct sbus_softc *sc;
758 struct rman *rm;
759 struct resource *rv;
760 struct resource_list *rl;
761 struct resource_list_entry *rle;
762 device_t schild;
763 bus_space_handle_t bh;
764 bus_addr_t toffs;
765 bus_size_t tend;
766 int i, slot;
767 int isdefault, needactivate, passthrough;
768
769 isdefault = (start == 0UL && end == ~0UL);
770 needactivate = flags & RF_ACTIVE;
771 passthrough = (device_get_parent(child) != bus);
772 rle = NULL;
773 sc = device_get_softc(bus);
774 rl = BUS_GET_RESOURCE_LIST(bus, child);
775 switch (type) {
776 case SYS_RES_IRQ:
777 return (resource_list_alloc(rl, bus, child, type, rid, start,
778 end, count, flags));
779 case SYS_RES_MEMORY:
780 if (!passthrough) {
781 rle = resource_list_find(rl, type, *rid);
782 if (rle == NULL)
783 return (NULL);
784 if (rle->res != NULL)
785 panic("%s: resource entry is busy", __func__);
786 if (isdefault) {
787 start = rle->start;
788 count = ulmax(count, rle->count);
789 end = ulmax(rle->end, start + count - 1);
790 }
791 }
792 rm = NULL;
793 bh = toffs = tend = 0;
794 schild = child;
795 while (device_get_parent(schild) != bus)
796 schild = device_get_parent(schild);
797 slot = sbus_get_slot(schild);
798 for (i = 0; i < sc->sc_nrange; i++) {
799 if (sc->sc_rd[i].rd_slot != slot ||
800 start < sc->sc_rd[i].rd_coffset ||
801 start > sc->sc_rd[i].rd_cend)
802 continue;
803 /* Disallow cross-range allocations. */
804 if (end > sc->sc_rd[i].rd_cend)
805 return (NULL);
806 /* We've found the connection to the parent bus */
807 toffs = start - sc->sc_rd[i].rd_coffset;
808 tend = end - sc->sc_rd[i].rd_coffset;
809 rm = &sc->sc_rd[i].rd_rman;
810 bh = sc->sc_rd[i].rd_bushandle;
811 break;
812 }
813 if (rm == NULL)
814 return (NULL);
815 flags &= ~RF_ACTIVE;
816 rv = rman_reserve_resource(rm, toffs, tend, count, flags,
817 child);
818 if (rv == NULL)
819 return (NULL);
820 rman_set_rid(rv, *rid);
821 rman_set_bustag(rv, sc->sc_cbustag);
822 rman_set_bushandle(rv, bh + rman_get_start(rv));
823 if (needactivate) {
824 if (bus_activate_resource(child, type, *rid, rv)) {
825 rman_release_resource(rv);
826 return (NULL);
827 }
828 }
829 if (!passthrough)
830 rle->res = rv;
831 return (rv);
832 default:
833 return (NULL);
834 }
835}
836
837static int
838sbus_activate_resource(device_t bus, device_t child, int type, int rid,
839 struct resource *r)
840{
841 void *p;
842 int error;
843
844 if (type == SYS_RES_IRQ) {
845 return (BUS_ACTIVATE_RESOURCE(device_get_parent(bus),
846 child, type, rid, r));
847 }
848 if (type == SYS_RES_MEMORY) {
849 /*
850 * Need to memory-map the device space, as some drivers depend
851 * on the virtual address being set and useable.
852 */
853 error = sparc64_bus_mem_map(rman_get_bustag(r),
854 rman_get_bushandle(r), rman_get_size(r), 0, 0, &p);
855 if (error != 0)
856 return (error);
857 rman_set_virtual(r, p);
858 }
859 return (rman_activate_resource(r));
860}
861
862static int
863sbus_deactivate_resource(device_t bus, device_t child, int type, int rid,
864 struct resource *r)
865{
866
867 if (type == SYS_RES_IRQ) {
868 return (BUS_DEACTIVATE_RESOURCE(device_get_parent(bus),
869 child, type, rid, r));
870 }
871 if (type == SYS_RES_MEMORY) {
872 sparc64_bus_mem_unmap(rman_get_virtual(r), rman_get_size(r));
873 rman_set_virtual(r, NULL);
874 }
875 return (rman_deactivate_resource(r));
876}
877
878static int
879sbus_release_resource(device_t bus, device_t child, int type, int rid,
880 struct resource *r)
881{
882 struct resource_list *rl;
883 struct resource_list_entry *rle;
884 int error, passthrough;
885
886 passthrough = (device_get_parent(child) != bus);
887 rl = BUS_GET_RESOURCE_LIST(bus, child);
888 if (type == SYS_RES_IRQ)
889 return (resource_list_release(rl, bus, child, type, rid, r));
890 if ((rman_get_flags(r) & RF_ACTIVE) != 0) {
891 error = bus_deactivate_resource(child, type, rid, r);
892 if (error != 0)
893 return (error);
894 }
895 error = rman_release_resource(r);
896 if (error != 0 || passthrough)
897 return (error);
898 rle = resource_list_find(rl, type, rid);
899 if (rle == NULL)
900 panic("%s: cannot find resource", __func__);
901 if (rle->res == NULL)
902 panic("%s: resource entry is not busy", __func__);
903 rle->res = NULL;
904 return (0);
905}
906
907static bus_dma_tag_t
908sbus_get_dma_tag(device_t bus, device_t child)
909{
910 struct sbus_softc *sc;
911
912 sc = device_get_softc(bus);
913 return (sc->sc_cdmatag);
914}
915
916static const struct ofw_bus_devinfo *
917sbus_get_devinfo(device_t bus, device_t child)
918{
919 struct sbus_devinfo *sdi;
920
921 sdi = device_get_ivars(child);
922 return (&sdi->sdi_obdinfo);
923}
924
925/*
926 * Handle an overtemp situation.
927 *
928 * SPARCs have temperature sensors which generate interrupts
929 * if the machine's temperature exceeds a certain threshold.
930 * This handles the interrupt and powers off the machine.
931 * The same needs to be done to PCI controller drivers.
932 */
933static void
934sbus_overtemp(void *arg)
935{
936 static int shutdown;
937
938 /* As the interrupt is cleared we may be called multiple times. */
939 if (shutdown != 0)
940 return;
941 shutdown++;
942 printf("DANGER: OVER TEMPERATURE detected\nShutting down NOW.\n");
943 shutdown_nice(RB_POWEROFF);
944}
945
946/* Try to shut down in time in case of power failure. */
947static void
948sbus_pwrfail(void *arg)
949{
950 static int shutdown;
951
952 /* As the interrupt is cleared we may be called multiple times. */
953 if (shutdown != 0)
954 return;
955 shutdown++;
956 printf("Power failure detected\nShutting down NOW.\n");
957 shutdown_nice(0);
958}
959
960static bus_space_tag_t
961sbus_alloc_bustag(struct sbus_softc *sc)
962{
963 bus_space_tag_t sbt;
964
965 sbt = (bus_space_tag_t)malloc(sizeof(struct bus_space_tag), M_DEVBUF,
966 M_NOWAIT | M_ZERO);
967 if (sbt == NULL)
968 panic("%s: out of memory", __func__);
969
970 sbt->bst_cookie = sc;
971 sbt->bst_parent = rman_get_bustag(sc->sc_sysio_res);
972 sbt->bst_type = SBUS_BUS_SPACE;
973 return (sbt);
974}
975
976static int
977sbus_print_res(struct sbus_devinfo *sdi)
978{
979 int rv;
980
981 rv = 0;
982 rv += resource_list_print_type(&sdi->sdi_rl, "mem", SYS_RES_MEMORY,
983 "%#lx");
984 rv += resource_list_print_type(&sdi->sdi_rl, "irq", SYS_RES_IRQ,
985 "%ld");
986 return (rv);
987}
| 251
252#define OFW_SBUS_TYPE "sbus"
253#define OFW_SBUS_NAME "sbus"
254
255static const struct intr_controller sbus_ic = {
256 sbus_intr_enable,
257 sbus_intr_disable,
258 sbus_intr_assign,
259 sbus_intr_clear
260};
261
262struct sbus_icarg {
263 struct sbus_softc *sica_sc;
264 bus_addr_t sica_map;
265 bus_addr_t sica_clr;
266};
267
268static const char *sbus_order_first[] = {
269 "auxio",
270 "dma",
271 NULL
272};
273
274static int
275sbus_inlist(const char *name, const char **list)
276{
277 int i;
278
279 if (name == NULL)
280 return (0);
281 for (i = 0; list[i] != NULL; i++) {
282 if (strcmp(name, list[i]) == 0)
283 return (1);
284 }
285 return (0);
286}
287
288static int
289sbus_probe(device_t dev)
290{
291 const char *t;
292
293 t = ofw_bus_get_type(dev);
294 if (((t == NULL || strcmp(t, OFW_SBUS_TYPE) != 0)) &&
295 strcmp(ofw_bus_get_name(dev), OFW_SBUS_NAME) != 0)
296 return (ENXIO);
297 device_set_desc(dev, "U2S UPA-SBus bridge");
298 return (0);
299}
300
301static int
302sbus_attach(device_t dev)
303{
304 struct sbus_softc *sc;
305 struct sbus_devinfo *sdi;
306 struct sbus_icarg *sica;
307 struct sbus_ranges *range;
308 struct resource *res;
309 struct resource_list *rl;
310 device_t cdev;
311 bus_addr_t intrclr, intrmap, phys;
312 bus_size_t size;
313 u_long vec;
314 phandle_t child, node;
315 int clock, i, intr, rid;
316
317 sc = device_get_softc(dev);
318 sc->sc_dev = dev;
319 node = ofw_bus_get_node(dev);
320
321 rid = 0;
322 sc->sc_sysio_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
323 RF_ACTIVE);
324 if (sc->sc_sysio_res == NULL)
325 panic("%s: cannot allocate device memory", __func__);
326
327 if (OF_getprop(node, "interrupts", &intr, sizeof(intr)) == -1)
328 panic("%s: cannot get IGN", __func__);
329 sc->sc_ign = INTIGN(intr);
330 sc->sc_cbustag = sbus_alloc_bustag(sc);
331
332 /*
333 * Record clock frequency for synchronous SCSI.
334 * IS THIS THE CORRECT DEFAULT??
335 */
336 if (OF_getprop(node, "clock-frequency", &clock, sizeof(clock)) == -1)
337 clock = 25000000;
338 sc->sc_clockfreq = clock;
339 clock /= 1000;
340 device_printf(dev, "clock %d.%03d MHz\n", clock / 1000, clock % 1000);
341
342 /*
343 * Collect address translations from the OBP.
344 */
345 if ((sc->sc_nrange = OF_getprop_alloc(node, "ranges",
346 sizeof(*range), (void **)&range)) == -1) {
347 panic("%s: error getting ranges property", __func__);
348 }
349 sc->sc_rd = (struct sbus_rd *)malloc(sizeof(*sc->sc_rd) * sc->sc_nrange,
350 M_DEVBUF, M_NOWAIT);
351 if (sc->sc_rd == NULL)
352 panic("%s: cannot allocate rmans", __func__);
353 /*
354 * Preallocate all space that the SBus bridge decodes, so that nothing
355 * else gets in the way; set up rmans etc.
356 */
357 rl = BUS_GET_RESOURCE_LIST(device_get_parent(dev), dev);
358 for (i = 0; i < sc->sc_nrange; i++) {
359 phys = range[i].poffset | ((bus_addr_t)range[i].pspace << 32);
360 size = range[i].size;
361 sc->sc_rd[i].rd_slot = range[i].cspace;
362 sc->sc_rd[i].rd_coffset = range[i].coffset;
363 sc->sc_rd[i].rd_cend = sc->sc_rd[i].rd_coffset + size;
364 rid = resource_list_add_next(rl, SYS_RES_MEMORY, phys,
365 phys + size - 1, size);
366 if ((res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
367 RF_ACTIVE)) == NULL)
368 panic("%s: cannot allocate decoded range", __func__);
369 sc->sc_rd[i].rd_bushandle = rman_get_bushandle(res);
370 sc->sc_rd[i].rd_rman.rm_type = RMAN_ARRAY;
371 sc->sc_rd[i].rd_rman.rm_descr = "SBus Device Memory";
372 if (rman_init(&sc->sc_rd[i].rd_rman) != 0 ||
373 rman_manage_region(&sc->sc_rd[i].rd_rman, 0, size) != 0)
374 panic("%s: failed to set up memory rman", __func__);
375 sc->sc_rd[i].rd_poffset = phys;
376 sc->sc_rd[i].rd_pend = phys + size;
377 sc->sc_rd[i].rd_res = res;
378 }
379 free(range, M_OFWPROP);
380
381 /*
382 * Get the SBus burst transfer size if burst transfers are supported.
383 * XXX: is the default correct?
384 */
385 if (OF_getprop(node, "burst-sizes", &sc->sc_burst,
386 sizeof(sc->sc_burst)) == -1 || sc->sc_burst == 0)
387 sc->sc_burst = SBUS_BURST_DEF;
388
389 /* initalise the IOMMU */
390
391 /* punch in our copies */
392 sc->sc_is.is_pmaxaddr = IOMMU_MAXADDR(SBUS_IOMMU_BITS);
393 sc->sc_is.is_bustag = rman_get_bustag(sc->sc_sysio_res);
394 sc->sc_is.is_bushandle = rman_get_bushandle(sc->sc_sysio_res);
395 sc->sc_is.is_iommu = SBR_IOMMU;
396 sc->sc_is.is_dtag = SBR_IOMMU_TLB_TAG_DIAG;
397 sc->sc_is.is_ddram = SBR_IOMMU_TLB_DATA_DIAG;
398 sc->sc_is.is_dqueue = SBR_IOMMU_QUEUE_DIAG;
399 sc->sc_is.is_dva = SBR_IOMMU_SVADIAG;
400 sc->sc_is.is_dtcmp = 0;
401 sc->sc_is.is_sb[0] = SBR_STRBUF;
402 sc->sc_is.is_sb[1] = 0;
403
404 /*
405 * Note: the SBus IOMMU ignores the high bits of an address, so a NULL
406 * DMA pointer will be translated by the first page of the IOTSB.
407 * To detect bugs we'll allocate and ignore the first entry.
408 */
409 iommu_init(device_get_nameunit(dev), &sc->sc_is, 3, -1, 1);
410
411 /* Create the DMA tag. */
412 if (bus_dma_tag_create(bus_get_dma_tag(dev), 8, 0,
413 sc->sc_is.is_pmaxaddr, ~0, NULL, NULL, sc->sc_is.is_pmaxaddr,
414 0xff, 0xffffffff, 0, NULL, NULL, &sc->sc_cdmatag) != 0)
415 panic("%s: bus_dma_tag_create failed", __func__);
416 /* Customize the tag. */
417 sc->sc_cdmatag->dt_cookie = &sc->sc_is;
418 sc->sc_cdmatag->dt_mt = &iommu_dma_methods;
419
420 /*
421 * Hunt through all the interrupt mapping regs and register our
422 * interrupt controller for the corresponding interrupt vectors.
423 */
424 for (i = 0; i <= SBUS_MAX_INO; i++) {
425 if (sbus_find_intrmap(sc, i, &intrmap, &intrclr) == 0)
426 continue;
427 sica = malloc(sizeof(*sica), M_DEVBUF, M_NOWAIT);
428 if (sica == NULL)
429 panic("%s: could not allocate interrupt controller "
430 "argument", __func__);
431 sica->sica_sc = sc;
432 sica->sica_map = intrmap;
433 sica->sica_clr = intrclr;
434#ifdef SBUS_DEBUG
435 device_printf(dev,
436 "intr map (INO %d, %s) %#lx: %#lx, clr: %#lx\n",
437 i, (i & INTMAP_OBIO_MASK) == 0 ? "SBus slot" : "OBIO",
438 (u_long)intrmap, (u_long)SYSIO_READ8(sc, intrmap),
439 (u_long)intrclr);
440#endif
441 if (intr_controller_register(INTMAP_VEC(sc->sc_ign, i),
442 &sbus_ic, sica) != 0)
443 panic("%s: could not register interrupt controller "
444 "for INO %d", __func__, i);
445 }
446
447 /* Enable the over-temperature and power-fail interrupts. */
448 rid = 4;
449 sc->sc_ot_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
450 RF_ACTIVE);
451 if (sc->sc_ot_ires == NULL ||
452 INTIGN(vec = rman_get_start(sc->sc_ot_ires)) != sc->sc_ign ||
453 INTVEC(SYSIO_READ8(sc, SBR_THERM_INT_MAP)) != vec ||
454 intr_vectors[vec].iv_ic != &sbus_ic ||
455 bus_setup_intr(dev, sc->sc_ot_ires, INTR_TYPE_MISC,
456 NULL, sbus_overtemp, sc, &sc->sc_ot_ihand) != 0)
457 panic("%s: failed to set up temperature interrupt", __func__);
458 rid = 3;
459 sc->sc_pf_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
460 RF_ACTIVE);
461 if (sc->sc_pf_ires == NULL ||
462 INTIGN(vec = rman_get_start(sc->sc_pf_ires)) != sc->sc_ign ||
463 INTVEC(SYSIO_READ8(sc, SBR_POWER_INT_MAP)) != vec ||
464 intr_vectors[vec].iv_ic != &sbus_ic ||
465 bus_setup_intr(dev, sc->sc_pf_ires, INTR_TYPE_MISC,
466 NULL, sbus_pwrfail, sc, &sc->sc_pf_ihand) != 0)
467 panic("%s: failed to set up power fail interrupt", __func__);
468
469 /* Initialize the counter-timer. */
470 sparc64_counter_init(device_get_nameunit(dev),
471 rman_get_bustag(sc->sc_sysio_res),
472 rman_get_bushandle(sc->sc_sysio_res), SBR_TC0);
473
474 /*
475 * Loop through ROM children, fixing any relative addresses
476 * and then configuring each device.
477 */
478 for (child = OF_child(node); child != 0; child = OF_peer(child)) {
479 if ((sdi = sbus_setup_dinfo(dev, sc, child)) == NULL)
480 continue;
481 /*
482 * For devices where there are variants that are actually
483 * split into two SBus devices (as opposed to the first
484 * half of the device being a SBus device and the second
485 * half hanging off of the first one) like 'auxio' and
486 * 'SUNW,fdtwo' or 'dma' and 'esp' probe the SBus device
487 * which is a prerequisite to the driver attaching to the
488 * second one with a lower order. Saves us from dealing
489 * with different probe orders in the respective device
490 * drivers which generally is more hackish.
491 */
492 cdev = device_add_child_ordered(dev, (OF_child(child) == 0 &&
493 sbus_inlist(sdi->sdi_obdinfo.obd_name, sbus_order_first)) ?
494 SBUS_ORDER_FIRST : SBUS_ORDER_NORMAL, NULL, -1);
495 if (cdev == NULL) {
496 device_printf(dev,
497 "<%s>: device_add_child_ordered failed\n",
498 sdi->sdi_obdinfo.obd_name);
499 sbus_destroy_dinfo(sdi);
500 continue;
501 }
502 device_set_ivars(cdev, sdi);
503 }
504 return (bus_generic_attach(dev));
505}
506
507static struct sbus_devinfo *
508sbus_setup_dinfo(device_t dev, struct sbus_softc *sc, phandle_t node)
509{
510 struct sbus_devinfo *sdi;
511 struct sbus_regs *reg;
512 u_int32_t base, iv, *intr;
513 int i, nreg, nintr, slot, rslot;
514
515 sdi = malloc(sizeof(*sdi), M_DEVBUF, M_ZERO | M_WAITOK);
516 if (ofw_bus_gen_setup_devinfo(&sdi->sdi_obdinfo, node) != 0) {
517 free(sdi, M_DEVBUF);
518 return (NULL);
519 }
520 resource_list_init(&sdi->sdi_rl);
521 slot = -1;
522 nreg = OF_getprop_alloc(node, "reg", sizeof(*reg), (void **)®);
523 if (nreg == -1) {
524 if (sdi->sdi_obdinfo.obd_type == NULL ||
525 strcmp(sdi->sdi_obdinfo.obd_type, "hierarchical") != 0) {
526 device_printf(dev, "<%s>: incomplete\n",
527 sdi->sdi_obdinfo.obd_name);
528 goto fail;
529 }
530 } else {
531 for (i = 0; i < nreg; i++) {
532 base = reg[i].sbr_offset;
533 if (SBUS_ABS(base)) {
534 rslot = SBUS_ABS_TO_SLOT(base);
535 base = SBUS_ABS_TO_OFFSET(base);
536 } else
537 rslot = reg[i].sbr_slot;
538 if (slot != -1 && slot != rslot) {
539 device_printf(dev, "<%s>: multiple slots\n",
540 sdi->sdi_obdinfo.obd_name);
541 free(reg, M_OFWPROP);
542 goto fail;
543 }
544 slot = rslot;
545
546 resource_list_add(&sdi->sdi_rl, SYS_RES_MEMORY, i,
547 base, base + reg[i].sbr_size, reg[i].sbr_size);
548 }
549 free(reg, M_OFWPROP);
550 }
551 sdi->sdi_slot = slot;
552
553 /*
554 * The `interrupts' property contains the SBus interrupt level.
555 */
556 nintr = OF_getprop_alloc(node, "interrupts", sizeof(*intr),
557 (void **)&intr);
558 if (nintr != -1) {
559 for (i = 0; i < nintr; i++) {
560 iv = intr[i];
561 /*
562 * SBus card devices need the slot number encoded into
563 * the vector as this is generally not done.
564 */
565 if ((iv & INTMAP_OBIO_MASK) == 0)
566 iv |= slot << 3;
567 iv = INTMAP_VEC(sc->sc_ign, iv);
568 resource_list_add(&sdi->sdi_rl, SYS_RES_IRQ, i,
569 iv, iv, 1);
570 }
571 free(intr, M_OFWPROP);
572 }
573 if (OF_getprop(node, "burst-sizes", &sdi->sdi_burstsz,
574 sizeof(sdi->sdi_burstsz)) == -1)
575 sdi->sdi_burstsz = sc->sc_burst;
576 else
577 sdi->sdi_burstsz &= sc->sc_burst;
578 if (OF_getprop(node, "clock-frequency", &sdi->sdi_clockfreq,
579 sizeof(sdi->sdi_clockfreq)) == -1)
580 sdi->sdi_clockfreq = sc->sc_clockfreq;
581
582 return (sdi);
583
584fail:
585 sbus_destroy_dinfo(sdi);
586 return (NULL);
587}
588
589static void
590sbus_destroy_dinfo(struct sbus_devinfo *dinfo)
591{
592
593 resource_list_free(&dinfo->sdi_rl);
594 ofw_bus_gen_destroy_devinfo(&dinfo->sdi_obdinfo);
595 free(dinfo, M_DEVBUF);
596}
597
598static int
599sbus_print_child(device_t dev, device_t child)
600{
601 int rv;
602
603 rv = bus_print_child_header(dev, child);
604 rv += sbus_print_res(device_get_ivars(child));
605 rv += bus_print_child_footer(dev, child);
606 return (rv);
607}
608
609static void
610sbus_probe_nomatch(device_t dev, device_t child)
611{
612 const char *type;
613
614 device_printf(dev, "<%s>", ofw_bus_get_name(child));
615 sbus_print_res(device_get_ivars(child));
616 type = ofw_bus_get_type(child);
617 printf(" type %s (no driver attached)\n",
618 type != NULL ? type : "unknown");
619}
620
621static int
622sbus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
623{
624 struct sbus_softc *sc;
625 struct sbus_devinfo *dinfo;
626
627 sc = device_get_softc(dev);
628 if ((dinfo = device_get_ivars(child)) == NULL)
629 return (ENOENT);
630 switch (which) {
631 case SBUS_IVAR_BURSTSZ:
632 *result = dinfo->sdi_burstsz;
633 break;
634 case SBUS_IVAR_CLOCKFREQ:
635 *result = dinfo->sdi_clockfreq;
636 break;
637 case SBUS_IVAR_IGN:
638 *result = sc->sc_ign;
639 break;
640 case SBUS_IVAR_SLOT:
641 *result = dinfo->sdi_slot;
642 break;
643 default:
644 return (ENOENT);
645 }
646 return (0);
647}
648
649static struct resource_list *
650sbus_get_resource_list(device_t dev, device_t child)
651{
652 struct sbus_devinfo *sdi;
653
654 sdi = device_get_ivars(child);
655 return (&sdi->sdi_rl);
656}
657
658static void
659sbus_intr_enable(void *arg)
660{
661 struct intr_vector *iv = arg;
662 struct sbus_icarg *sica = iv->iv_icarg;
663
664 SYSIO_WRITE8(sica->sica_sc, sica->sica_map,
665 INTMAP_ENABLE(iv->iv_vec, iv->iv_mid));
666}
667
668static void
669sbus_intr_disable(void *arg)
670{
671 struct intr_vector *iv = arg;
672 struct sbus_icarg *sica = iv->iv_icarg;
673
674 SYSIO_WRITE8(sica->sica_sc, sica->sica_map, iv->iv_vec);
675}
676
677static void
678sbus_intr_assign(void *arg)
679{
680 struct intr_vector *iv = arg;
681 struct sbus_icarg *sica = iv->iv_icarg;
682
683 SYSIO_WRITE8(sica->sica_sc, sica->sica_map, INTMAP_TID(
684 SYSIO_READ8(sica->sica_sc, sica->sica_map), iv->iv_mid));
685}
686
687static void
688sbus_intr_clear(void *arg)
689{
690 struct intr_vector *iv = arg;
691 struct sbus_icarg *sica = iv->iv_icarg;
692
693 SYSIO_WRITE8(sica->sica_sc, sica->sica_clr, 0);
694}
695
696static int
697sbus_find_intrmap(struct sbus_softc *sc, u_int ino, bus_addr_t *intrmapptr,
698 bus_addr_t *intrclrptr)
699{
700 bus_addr_t intrclr, intrmap;
701 int i;
702
703 if (ino > SBUS_MAX_INO) {
704 device_printf(sc->sc_dev, "out of range INO %d requested\n",
705 ino);
706 return (0);
707 }
708
709 if ((ino & INTMAP_OBIO_MASK) == 0) {
710 intrmap = SBR_SLOT0_INT_MAP + INTSLOT(ino) * 8;
711 intrclr = SBR_SLOT0_INT_CLR +
712 (INTSLOT(ino) * 8 * 8) + (INTPRI(ino) * 8);
713 } else {
714 intrclr = 0;
715 for (i = 0, intrmap = SBR_SCSI_INT_MAP;
716 intrmap <= SBR_RESERVED_INT_MAP; intrmap += 8, i++) {
717 if (INTVEC(SYSIO_READ8(sc, intrmap)) ==
718 INTMAP_VEC(sc->sc_ign, ino)) {
719 intrclr = SBR_SCSI_INT_CLR + i * 8;
720 break;
721 }
722 }
723 if (intrclr == 0)
724 return (0);
725 }
726 if (intrmapptr != NULL)
727 *intrmapptr = intrmap;
728 if (intrclrptr != NULL)
729 *intrclrptr = intrclr;
730 return (1);
731}
732
733static int
734sbus_setup_intr(device_t dev, device_t child, struct resource *ires, int flags,
735 driver_filter_t *filt, driver_intr_t *intr, void *arg, void **cookiep)
736{
737 struct sbus_softc *sc;
738 u_long vec;
739
740 sc = device_get_softc(dev);
741 /*
742 * Make sure the vector is fully specified and we registered
743 * our interrupt controller for it.
744 */
745 vec = rman_get_start(ires);
746 if (INTIGN(vec) != sc->sc_ign || intr_vectors[vec].iv_ic != &sbus_ic) {
747 device_printf(dev, "invalid interrupt vector 0x%lx\n", vec);
748 return (EINVAL);
749 }
750 return (bus_generic_setup_intr(dev, child, ires, flags, filt, intr,
751 arg, cookiep));
752}
753
754static struct resource *
755sbus_alloc_resource(device_t bus, device_t child, int type, int *rid,
756 u_long start, u_long end, u_long count, u_int flags)
757{
758 struct sbus_softc *sc;
759 struct rman *rm;
760 struct resource *rv;
761 struct resource_list *rl;
762 struct resource_list_entry *rle;
763 device_t schild;
764 bus_space_handle_t bh;
765 bus_addr_t toffs;
766 bus_size_t tend;
767 int i, slot;
768 int isdefault, needactivate, passthrough;
769
770 isdefault = (start == 0UL && end == ~0UL);
771 needactivate = flags & RF_ACTIVE;
772 passthrough = (device_get_parent(child) != bus);
773 rle = NULL;
774 sc = device_get_softc(bus);
775 rl = BUS_GET_RESOURCE_LIST(bus, child);
776 switch (type) {
777 case SYS_RES_IRQ:
778 return (resource_list_alloc(rl, bus, child, type, rid, start,
779 end, count, flags));
780 case SYS_RES_MEMORY:
781 if (!passthrough) {
782 rle = resource_list_find(rl, type, *rid);
783 if (rle == NULL)
784 return (NULL);
785 if (rle->res != NULL)
786 panic("%s: resource entry is busy", __func__);
787 if (isdefault) {
788 start = rle->start;
789 count = ulmax(count, rle->count);
790 end = ulmax(rle->end, start + count - 1);
791 }
792 }
793 rm = NULL;
794 bh = toffs = tend = 0;
795 schild = child;
796 while (device_get_parent(schild) != bus)
797 schild = device_get_parent(schild);
798 slot = sbus_get_slot(schild);
799 for (i = 0; i < sc->sc_nrange; i++) {
800 if (sc->sc_rd[i].rd_slot != slot ||
801 start < sc->sc_rd[i].rd_coffset ||
802 start > sc->sc_rd[i].rd_cend)
803 continue;
804 /* Disallow cross-range allocations. */
805 if (end > sc->sc_rd[i].rd_cend)
806 return (NULL);
807 /* We've found the connection to the parent bus */
808 toffs = start - sc->sc_rd[i].rd_coffset;
809 tend = end - sc->sc_rd[i].rd_coffset;
810 rm = &sc->sc_rd[i].rd_rman;
811 bh = sc->sc_rd[i].rd_bushandle;
812 break;
813 }
814 if (rm == NULL)
815 return (NULL);
816 flags &= ~RF_ACTIVE;
817 rv = rman_reserve_resource(rm, toffs, tend, count, flags,
818 child);
819 if (rv == NULL)
820 return (NULL);
821 rman_set_rid(rv, *rid);
822 rman_set_bustag(rv, sc->sc_cbustag);
823 rman_set_bushandle(rv, bh + rman_get_start(rv));
824 if (needactivate) {
825 if (bus_activate_resource(child, type, *rid, rv)) {
826 rman_release_resource(rv);
827 return (NULL);
828 }
829 }
830 if (!passthrough)
831 rle->res = rv;
832 return (rv);
833 default:
834 return (NULL);
835 }
836}
837
838static int
839sbus_activate_resource(device_t bus, device_t child, int type, int rid,
840 struct resource *r)
841{
842 void *p;
843 int error;
844
845 if (type == SYS_RES_IRQ) {
846 return (BUS_ACTIVATE_RESOURCE(device_get_parent(bus),
847 child, type, rid, r));
848 }
849 if (type == SYS_RES_MEMORY) {
850 /*
851 * Need to memory-map the device space, as some drivers depend
852 * on the virtual address being set and useable.
853 */
854 error = sparc64_bus_mem_map(rman_get_bustag(r),
855 rman_get_bushandle(r), rman_get_size(r), 0, 0, &p);
856 if (error != 0)
857 return (error);
858 rman_set_virtual(r, p);
859 }
860 return (rman_activate_resource(r));
861}
862
863static int
864sbus_deactivate_resource(device_t bus, device_t child, int type, int rid,
865 struct resource *r)
866{
867
868 if (type == SYS_RES_IRQ) {
869 return (BUS_DEACTIVATE_RESOURCE(device_get_parent(bus),
870 child, type, rid, r));
871 }
872 if (type == SYS_RES_MEMORY) {
873 sparc64_bus_mem_unmap(rman_get_virtual(r), rman_get_size(r));
874 rman_set_virtual(r, NULL);
875 }
876 return (rman_deactivate_resource(r));
877}
878
879static int
880sbus_release_resource(device_t bus, device_t child, int type, int rid,
881 struct resource *r)
882{
883 struct resource_list *rl;
884 struct resource_list_entry *rle;
885 int error, passthrough;
886
887 passthrough = (device_get_parent(child) != bus);
888 rl = BUS_GET_RESOURCE_LIST(bus, child);
889 if (type == SYS_RES_IRQ)
890 return (resource_list_release(rl, bus, child, type, rid, r));
891 if ((rman_get_flags(r) & RF_ACTIVE) != 0) {
892 error = bus_deactivate_resource(child, type, rid, r);
893 if (error != 0)
894 return (error);
895 }
896 error = rman_release_resource(r);
897 if (error != 0 || passthrough)
898 return (error);
899 rle = resource_list_find(rl, type, rid);
900 if (rle == NULL)
901 panic("%s: cannot find resource", __func__);
902 if (rle->res == NULL)
903 panic("%s: resource entry is not busy", __func__);
904 rle->res = NULL;
905 return (0);
906}
907
908static bus_dma_tag_t
909sbus_get_dma_tag(device_t bus, device_t child)
910{
911 struct sbus_softc *sc;
912
913 sc = device_get_softc(bus);
914 return (sc->sc_cdmatag);
915}
916
917static const struct ofw_bus_devinfo *
918sbus_get_devinfo(device_t bus, device_t child)
919{
920 struct sbus_devinfo *sdi;
921
922 sdi = device_get_ivars(child);
923 return (&sdi->sdi_obdinfo);
924}
925
926/*
927 * Handle an overtemp situation.
928 *
929 * SPARCs have temperature sensors which generate interrupts
930 * if the machine's temperature exceeds a certain threshold.
931 * This handles the interrupt and powers off the machine.
932 * The same needs to be done to PCI controller drivers.
933 */
934static void
935sbus_overtemp(void *arg)
936{
937 static int shutdown;
938
939 /* As the interrupt is cleared we may be called multiple times. */
940 if (shutdown != 0)
941 return;
942 shutdown++;
943 printf("DANGER: OVER TEMPERATURE detected\nShutting down NOW.\n");
944 shutdown_nice(RB_POWEROFF);
945}
946
947/* Try to shut down in time in case of power failure. */
948static void
949sbus_pwrfail(void *arg)
950{
951 static int shutdown;
952
953 /* As the interrupt is cleared we may be called multiple times. */
954 if (shutdown != 0)
955 return;
956 shutdown++;
957 printf("Power failure detected\nShutting down NOW.\n");
958 shutdown_nice(0);
959}
960
961static bus_space_tag_t
962sbus_alloc_bustag(struct sbus_softc *sc)
963{
964 bus_space_tag_t sbt;
965
966 sbt = (bus_space_tag_t)malloc(sizeof(struct bus_space_tag), M_DEVBUF,
967 M_NOWAIT | M_ZERO);
968 if (sbt == NULL)
969 panic("%s: out of memory", __func__);
970
971 sbt->bst_cookie = sc;
972 sbt->bst_parent = rman_get_bustag(sc->sc_sysio_res);
973 sbt->bst_type = SBUS_BUS_SPACE;
974 return (sbt);
975}
976
977static int
978sbus_print_res(struct sbus_devinfo *sdi)
979{
980 int rv;
981
982 rv = 0;
983 rv += resource_list_print_type(&sdi->sdi_rl, "mem", SYS_RES_MEMORY,
984 "%#lx");
985 rv += resource_list_print_type(&sdi->sdi_rl, "irq", SYS_RES_IRQ,
986 "%ld");
987 return (rv);
988}
|