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ofw_pcibus.c (144033) ofw_pcibus.c (152684)
1/*-
2 * Copyright (c) 1997, Stefan Esser <se@freebsd.org>
3 * Copyright (c) 2000, Michael Smith <msmith@freebsd.org>
4 * Copyright (c) 2000, BSDi
5 * Copyright (c) 2003, Thomas Moestl <tmm@FreeBSD.org>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without

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20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1/*-
2 * Copyright (c) 1997, Stefan Esser <se@freebsd.org>
3 * Copyright (c) 2000, Michael Smith <msmith@freebsd.org>
4 * Copyright (c) 2000, BSDi
5 * Copyright (c) 2003, Thomas Moestl <tmm@FreeBSD.org>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without

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20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * $FreeBSD: head/sys/sparc64/pci/ofw_pcibus.c 144033 2005-03-23 18:16:26Z jmg $
30 */
31
28 */
29
30#include <sys/cdefs.h>
31__FBSDID("$FreeBSD: head/sys/sparc64/pci/ofw_pcibus.c 152684 2005-11-22 16:39:44Z marius $");
32
32#include "opt_ofw_pci.h"
33
34#include <sys/param.h>
35#include <sys/bus.h>
36#include <sys/kernel.h>
37#include <sys/libkern.h>
38#include <sys/module.h>
39#include <sys/pciio.h>
40
41#include <dev/ofw/ofw_bus.h>
33#include "opt_ofw_pci.h"
34
35#include <sys/param.h>
36#include <sys/bus.h>
37#include <sys/kernel.h>
38#include <sys/libkern.h>
39#include <sys/module.h>
40#include <sys/pciio.h>
41
42#include <dev/ofw/ofw_bus.h>
43#include <dev/ofw/ofw_bus_subr.h>
42#include <dev/ofw/ofw_pci.h>
43#include <dev/ofw/openfirm.h>
44
45#include <machine/bus.h>
46#include <machine/bus_common.h>
47#include <machine/cache.h>
48#include <machine/iommureg.h>
49#include <machine/resource.h>

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59
60/* Helper functions. */
61static void ofw_pcibus_setup_device(device_t, u_int, u_int, u_int);
62
63/* Methods. */
64static device_probe_t ofw_pcibus_probe;
65static device_attach_t ofw_pcibus_attach;
66static pci_assign_interrupt_t ofw_pcibus_assign_interrupt;
44#include <dev/ofw/ofw_pci.h>
45#include <dev/ofw/openfirm.h>
46
47#include <machine/bus.h>
48#include <machine/bus_common.h>
49#include <machine/cache.h>
50#include <machine/iommureg.h>
51#include <machine/resource.h>

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61
62/* Helper functions. */
63static void ofw_pcibus_setup_device(device_t, u_int, u_int, u_int);
64
65/* Methods. */
66static device_probe_t ofw_pcibus_probe;
67static device_attach_t ofw_pcibus_attach;
68static pci_assign_interrupt_t ofw_pcibus_assign_interrupt;
67static ofw_bus_get_compat_t ofw_pcibus_get_compat;
68static ofw_bus_get_model_t ofw_pcibus_get_model;
69static ofw_bus_get_name_t ofw_pcibus_get_name;
70static ofw_bus_get_node_t ofw_pcibus_get_node;
71static ofw_bus_get_type_t ofw_pcibus_get_type;
69static ofw_bus_get_devinfo_t ofw_pcibus_get_devinfo;
72
73static device_method_t ofw_pcibus_methods[] = {
74 /* Device interface */
75 DEVMETHOD(device_probe, ofw_pcibus_probe),
76 DEVMETHOD(device_attach, ofw_pcibus_attach),
77 DEVMETHOD(device_shutdown, bus_generic_shutdown),
78 DEVMETHOD(device_suspend, bus_generic_suspend),
79 DEVMETHOD(device_resume, bus_generic_resume),

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105 DEVMETHOD(pci_disable_busmaster, pci_disable_busmaster_method),
106 DEVMETHOD(pci_enable_io, pci_enable_io_method),
107 DEVMETHOD(pci_disable_io, pci_disable_io_method),
108 DEVMETHOD(pci_get_powerstate, pci_get_powerstate_method),
109 DEVMETHOD(pci_set_powerstate, pci_set_powerstate_method),
110 DEVMETHOD(pci_assign_interrupt, ofw_pcibus_assign_interrupt),
111
112 /* ofw_bus interface */
70
71static device_method_t ofw_pcibus_methods[] = {
72 /* Device interface */
73 DEVMETHOD(device_probe, ofw_pcibus_probe),
74 DEVMETHOD(device_attach, ofw_pcibus_attach),
75 DEVMETHOD(device_shutdown, bus_generic_shutdown),
76 DEVMETHOD(device_suspend, bus_generic_suspend),
77 DEVMETHOD(device_resume, bus_generic_resume),

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103 DEVMETHOD(pci_disable_busmaster, pci_disable_busmaster_method),
104 DEVMETHOD(pci_enable_io, pci_enable_io_method),
105 DEVMETHOD(pci_disable_io, pci_disable_io_method),
106 DEVMETHOD(pci_get_powerstate, pci_get_powerstate_method),
107 DEVMETHOD(pci_set_powerstate, pci_set_powerstate_method),
108 DEVMETHOD(pci_assign_interrupt, ofw_pcibus_assign_interrupt),
109
110 /* ofw_bus interface */
113 DEVMETHOD(ofw_bus_get_compat, ofw_pcibus_get_compat),
114 DEVMETHOD(ofw_bus_get_model, ofw_pcibus_get_model),
115 DEVMETHOD(ofw_bus_get_name, ofw_pcibus_get_name),
116 DEVMETHOD(ofw_bus_get_node, ofw_pcibus_get_node),
117 DEVMETHOD(ofw_bus_get_type, ofw_pcibus_get_type),
111 DEVMETHOD(ofw_bus_get_devinfo, ofw_pcibus_get_devinfo),
112 DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
113 DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
114 DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
115 DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
116 DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
118
119 { 0, 0 }
120};
121
122struct ofw_pcibus_devinfo {
123 struct pci_devinfo opd_dinfo;
117
118 { 0, 0 }
119};
120
121struct ofw_pcibus_devinfo {
122 struct pci_devinfo opd_dinfo;
124 char *opd_compat;
125 char *opd_model;
126 char *opd_name;
127 char *opd_type;
128 phandle_t opd_node;
123 struct ofw_bus_devinfo opd_obdinfo;
129};
130
131struct ofw_pcibus_softc {
132 phandle_t ops_node;
133};
134
135static driver_t ofw_pcibus_driver = {
136 "pci",

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204
205static int
206ofw_pcibus_attach(device_t dev)
207{
208 device_t pcib = device_get_parent(dev);
209 struct ofw_pci_register pcir;
210 struct ofw_pcibus_devinfo *dinfo;
211 phandle_t node, child;
124};
125
126struct ofw_pcibus_softc {
127 phandle_t ops_node;
128};
129
130static driver_t ofw_pcibus_driver = {
131 "pci",

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199
200static int
201ofw_pcibus_attach(device_t dev)
202{
203 device_t pcib = device_get_parent(dev);
204 struct ofw_pci_register pcir;
205 struct ofw_pcibus_devinfo *dinfo;
206 phandle_t node, child;
212 char *cname;
213 u_int slot, busno, func;
214
215 /*
216 * Ask the bridge for the bus number - in some cases, we need to
217 * renumber buses, so the firmware information cannot be trusted.
218 */
219 busno = pcib_get_bus(dev);
220 if (bootverbose)
221 device_printf(dev, "physical bus=%d\n", busno);
222
223 node = ofw_bus_get_node(dev);
224 for (child = OF_child(node); child != 0; child = OF_peer(child)) {
207 u_int slot, busno, func;
208
209 /*
210 * Ask the bridge for the bus number - in some cases, we need to
211 * renumber buses, so the firmware information cannot be trusted.
212 */
213 busno = pcib_get_bus(dev);
214 if (bootverbose)
215 device_printf(dev, "physical bus=%d\n", busno);
216
217 node = ofw_bus_get_node(dev);
218 for (child = OF_child(node); child != 0; child = OF_peer(child)) {
225 if ((OF_getprop_alloc(child, "name", 1, (void **)&cname)) == -1)
219 if (OF_getprop(child, "reg", &pcir, sizeof(pcir)) == -1)
226 continue;
220 continue;
227
228 if (OF_getprop(child, "reg", &pcir, sizeof(pcir)) == -1) {
229 device_printf(dev, "<%s>: incomplete\n", cname);
230 free(cname, M_OFWPROP);
231 continue;
232 }
233 slot = OFW_PCI_PHYS_HI_DEVICE(pcir.phys_hi);
234 func = OFW_PCI_PHYS_HI_FUNCTION(pcir.phys_hi);
235 ofw_pcibus_setup_device(pcib, busno, slot, func);
236 dinfo = (struct ofw_pcibus_devinfo *)pci_read_device(pcib,
237 busno, slot, func, sizeof(*dinfo));
221 slot = OFW_PCI_PHYS_HI_DEVICE(pcir.phys_hi);
222 func = OFW_PCI_PHYS_HI_FUNCTION(pcir.phys_hi);
223 ofw_pcibus_setup_device(pcib, busno, slot, func);
224 dinfo = (struct ofw_pcibus_devinfo *)pci_read_device(pcib,
225 busno, slot, func, sizeof(*dinfo));
238 if (dinfo != NULL) {
239 dinfo->opd_name = cname;
240 dinfo->opd_node = child;
241 OF_getprop_alloc(child, "compatible", 1,
242 (void **)&dinfo->opd_compat);
243 OF_getprop_alloc(child, "device_type", 1,
244 (void **)&dinfo->opd_type);
245 OF_getprop_alloc(child, "model", 1,
246 (void **)&dinfo->opd_model);
247 pci_add_child(dev, (struct pci_devinfo *)dinfo);
248 } else
249 free(cname, M_OFWPROP);
226 if (dinfo == NULL)
227 continue;
228 if (ofw_bus_gen_setup_devinfo(&dinfo->opd_obdinfo, child) !=
229 0) {
230 pci_freecfg((struct pci_devinfo *)dinfo);
231 continue;
232 }
233 pci_add_child(dev, (struct pci_devinfo *)dinfo);
250 }
251
252 return (bus_generic_attach(dev));
253}
254
255static int
256ofw_pcibus_assign_interrupt(device_t dev, device_t child)
257{
234 }
235
236 return (bus_generic_attach(dev));
237}
238
239static int
240ofw_pcibus_assign_interrupt(device_t dev, device_t child)
241{
258 struct ofw_pcibus_devinfo *dinfo = device_get_ivars(child);
259 pcicfgregs *cfg = &dinfo->opd_dinfo.cfg;
260 ofw_pci_intr_t intr;
261 int isz;
262
242 ofw_pci_intr_t intr;
243 int isz;
244
263 isz = OF_getprop(dinfo->opd_node, "interrupts", &intr, sizeof(intr));
245 isz = OF_getprop(ofw_bus_get_node(child), "interrupts", &intr,
246 sizeof(intr));
264 if (isz != sizeof(intr)) {
265 /* No property; our best guess is the intpin. */
247 if (isz != sizeof(intr)) {
248 /* No property; our best guess is the intpin. */
266 intr = cfg->intpin;
249 intr = pci_get_intpin(child);
267 } else if (intr >= 255) {
268 /*
269 * A fully specified interrupt (including IGN), as present on
270 * SPARCengine Ultra AX and e450. Extract the INO and return it.
271 */
272 return (INTINO(intr));
273 }
274 /*
275 * If we got intr from a property, it may or may not be an intpin.
276 * For on-board devices, it frequently is not, and is completely out
277 * of the valid intpin range. For PCI slots, it hopefully is, otherwise
278 * we will have trouble interfacing with non-OFW buses such as cardbus.
279 * Since we cannot tell which it is without violating layering, we
280 * will always use the route_interrupt method, and treat exceptions on
281 * the level they become apparent.
282 */
283 return (PCIB_ROUTE_INTERRUPT(device_get_parent(dev), child, intr));
284}
285
250 } else if (intr >= 255) {
251 /*
252 * A fully specified interrupt (including IGN), as present on
253 * SPARCengine Ultra AX and e450. Extract the INO and return it.
254 */
255 return (INTINO(intr));
256 }
257 /*
258 * If we got intr from a property, it may or may not be an intpin.
259 * For on-board devices, it frequently is not, and is completely out
260 * of the valid intpin range. For PCI slots, it hopefully is, otherwise
261 * we will have trouble interfacing with non-OFW buses such as cardbus.
262 * Since we cannot tell which it is without violating layering, we
263 * will always use the route_interrupt method, and treat exceptions on
264 * the level they become apparent.
265 */
266 return (PCIB_ROUTE_INTERRUPT(device_get_parent(dev), child, intr));
267}
268
286static const char *
287ofw_pcibus_get_compat(device_t bus, device_t dev)
269static const struct ofw_bus_devinfo *
270ofw_pcibus_get_devinfo(device_t bus, device_t dev)
288{
289 struct ofw_pcibus_devinfo *dinfo;
271{
272 struct ofw_pcibus_devinfo *dinfo;
290
291 dinfo = device_get_ivars(dev);
292 return (dinfo->opd_compat);
293}
294
295static const char *
296ofw_pcibus_get_model(device_t bus, device_t dev)
297{
298 struct ofw_pcibus_devinfo *dinfo;
299
300 dinfo = device_get_ivars(dev);
273
274 dinfo = device_get_ivars(dev);
301 return (dinfo->opd_model);
275 return (&dinfo->opd_obdinfo);
302}
276}
303
304static const char *
305ofw_pcibus_get_name(device_t bus, device_t dev)
306{
307 struct ofw_pcibus_devinfo *dinfo;
308
309 dinfo = device_get_ivars(dev);
310 return (dinfo->opd_name);
311}
312
313static phandle_t
314ofw_pcibus_get_node(device_t bus, device_t dev)
315{
316 struct ofw_pcibus_devinfo *dinfo;
317
318 dinfo = device_get_ivars(dev);
319 return (dinfo->opd_node);
320}
321
322static const char *
323ofw_pcibus_get_type(device_t bus, device_t dev)
324{
325 struct ofw_pcibus_devinfo *dinfo;
326
327 dinfo = device_get_ivars(dev);
328 return (dinfo->opd_type);
329}