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agp_sis.c (241856) agp_sis.c (241885)
1/*-
2 * Copyright (c) 2000 Doug Rabson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 2000 Doug Rabson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/dev/agp/agp_sis.c 241856 2012-10-22 03:41:14Z eadler $");
28__FBSDID("$FreeBSD: head/sys/dev/agp/agp_sis.c 241885 2012-10-22 13:06:09Z eadler $");
29
30#include "opt_bus.h"
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/malloc.h>
35#include <sys/kernel.h>
36#include <sys/module.h>
37#include <sys/bus.h>
38#include <sys/lock.h>
39#include <sys/mutex.h>
40#include <sys/proc.h>
41
42#include <dev/agp/agppriv.h>
43#include <dev/agp/agpreg.h>
44#include <dev/pci/pcivar.h>
45#include <dev/pci/pcireg.h>
46
47#include <vm/vm.h>
48#include <vm/vm_object.h>
49#include <vm/pmap.h>
50
51struct agp_sis_softc {
52 struct agp_softc agp;
53 u_int32_t initial_aperture; /* aperture size at startup */
54 struct agp_gatt *gatt;
55};
56
57static const char*
58agp_sis_match(device_t dev)
59{
60 if (pci_get_class(dev) != PCIC_BRIDGE
61 || pci_get_subclass(dev) != PCIS_BRIDGE_HOST)
62 return NULL;
63
64 if (agp_find_caps(dev) == 0)
65 return NULL;
66
67 switch (pci_get_devid(dev)) {
68 case 0x00011039:
69 return ("SiS 5591 host to AGP bridge");
70 case 0x05301039:
71 return ("SiS 530 host to AGP bridge");
72 case 0x05401039:
73 return ("SiS 540 host to AGP bridge");
74 case 0x05501039:
75 return ("SiS 550 host to AGP bridge");
76 case 0x06201039:
77 return ("SiS 620 host to AGP bridge");
78 case 0x06301039:
79 return ("SiS 630 host to AGP bridge");
80 case 0x06451039:
81 return ("SiS 645 host to AGP bridge");
82 case 0x06461039:
83 return ("SiS 645DX host to AGP bridge");
84 case 0x06481039:
85 return ("SiS 648 host to AGP bridge");
86 case 0x06501039:
87 return ("SiS 650 host to AGP bridge");
88 case 0x06511039:
89 return ("SiS 651 host to AGP bridge");
90 case 0x06551039:
91 return ("SiS 655 host to AGP bridge");
92 case 0x06611039:
93 return ("SiS 661 host to AGP bridge");
94 case 0x07301039:
95 return ("SiS 730 host to AGP bridge");
96 case 0x07351039:
97 return ("SiS 735 host to AGP bridge");
98 case 0x07401039:
99 return ("SiS 740 host to AGP bridge");
100 case 0x07411039:
101 return ("SiS 741 host to AGP bridge");
102 case 0x07451039:
103 return ("SiS 745 host to AGP bridge");
104 case 0x07461039:
105 return ("SiS 746 host to AGP bridge");
106 };
107
108 return NULL;
109}
110
111static int
112agp_sis_probe(device_t dev)
113{
114 const char *desc;
115
29
30#include "opt_bus.h"
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/malloc.h>
35#include <sys/kernel.h>
36#include <sys/module.h>
37#include <sys/bus.h>
38#include <sys/lock.h>
39#include <sys/mutex.h>
40#include <sys/proc.h>
41
42#include <dev/agp/agppriv.h>
43#include <dev/agp/agpreg.h>
44#include <dev/pci/pcivar.h>
45#include <dev/pci/pcireg.h>
46
47#include <vm/vm.h>
48#include <vm/vm_object.h>
49#include <vm/pmap.h>
50
51struct agp_sis_softc {
52 struct agp_softc agp;
53 u_int32_t initial_aperture; /* aperture size at startup */
54 struct agp_gatt *gatt;
55};
56
57static const char*
58agp_sis_match(device_t dev)
59{
60 if (pci_get_class(dev) != PCIC_BRIDGE
61 || pci_get_subclass(dev) != PCIS_BRIDGE_HOST)
62 return NULL;
63
64 if (agp_find_caps(dev) == 0)
65 return NULL;
66
67 switch (pci_get_devid(dev)) {
68 case 0x00011039:
69 return ("SiS 5591 host to AGP bridge");
70 case 0x05301039:
71 return ("SiS 530 host to AGP bridge");
72 case 0x05401039:
73 return ("SiS 540 host to AGP bridge");
74 case 0x05501039:
75 return ("SiS 550 host to AGP bridge");
76 case 0x06201039:
77 return ("SiS 620 host to AGP bridge");
78 case 0x06301039:
79 return ("SiS 630 host to AGP bridge");
80 case 0x06451039:
81 return ("SiS 645 host to AGP bridge");
82 case 0x06461039:
83 return ("SiS 645DX host to AGP bridge");
84 case 0x06481039:
85 return ("SiS 648 host to AGP bridge");
86 case 0x06501039:
87 return ("SiS 650 host to AGP bridge");
88 case 0x06511039:
89 return ("SiS 651 host to AGP bridge");
90 case 0x06551039:
91 return ("SiS 655 host to AGP bridge");
92 case 0x06611039:
93 return ("SiS 661 host to AGP bridge");
94 case 0x07301039:
95 return ("SiS 730 host to AGP bridge");
96 case 0x07351039:
97 return ("SiS 735 host to AGP bridge");
98 case 0x07401039:
99 return ("SiS 740 host to AGP bridge");
100 case 0x07411039:
101 return ("SiS 741 host to AGP bridge");
102 case 0x07451039:
103 return ("SiS 745 host to AGP bridge");
104 case 0x07461039:
105 return ("SiS 746 host to AGP bridge");
106 };
107
108 return NULL;
109}
110
111static int
112agp_sis_probe(device_t dev)
113{
114 const char *desc;
115
116 if (resource_disabled("agp", device_get_unit(dev)))
117 return (ENXIO);
116 desc = agp_sis_match(dev);
117 if (desc) {
118 device_set_desc(dev, desc);
119 return BUS_PROBE_DEFAULT;
120 }
121
122 return ENXIO;
123}
124
125static int
126agp_sis_attach(device_t dev)
127{
128 struct agp_sis_softc *sc = device_get_softc(dev);
129 struct agp_gatt *gatt;
130 int error;
131
132 error = agp_generic_attach(dev);
133 if (error)
134 return error;
135
136 sc->initial_aperture = AGP_GET_APERTURE(dev);
137
138 for (;;) {
139 gatt = agp_alloc_gatt(dev);
140 if (gatt)
141 break;
142
143 /*
144 * Probably contigmalloc failure. Try reducing the
145 * aperture so that the gatt size reduces.
146 */
147 if (AGP_SET_APERTURE(dev, AGP_GET_APERTURE(dev) / 2)) {
148 agp_generic_detach(dev);
149 return ENOMEM;
150 }
151 }
152 sc->gatt = gatt;
153
154 /* Install the gatt. */
155 pci_write_config(dev, AGP_SIS_ATTBASE, gatt->ag_physical, 4);
156
157 /* Enable the aperture. */
158 pci_write_config(dev, AGP_SIS_WINCTRL,
159 pci_read_config(dev, AGP_SIS_WINCTRL, 1) | 3, 1);
160
161 /*
162 * Enable the TLB and make it automatically invalidate entries
163 * when the GATT is written.
164 */
165 pci_write_config(dev, AGP_SIS_TLBCTRL, 0x05, 1);
166
167 return 0;
168}
169
170static int
171agp_sis_detach(device_t dev)
172{
173 struct agp_sis_softc *sc = device_get_softc(dev);
174
175 agp_free_cdev(dev);
176
177 /* Disable the aperture.. */
178 pci_write_config(dev, AGP_SIS_WINCTRL,
179 pci_read_config(dev, AGP_SIS_WINCTRL, 1) & ~3, 1);
180
181 /* and the TLB. */
182 pci_write_config(dev, AGP_SIS_TLBCTRL, 0, 1);
183
184 /* Put the aperture back the way it started. */
185 AGP_SET_APERTURE(dev, sc->initial_aperture);
186
187 agp_free_gatt(sc->gatt);
188 agp_free_res(dev);
189 return 0;
190}
191
192static u_int32_t
193agp_sis_get_aperture(device_t dev)
194{
195 int gws;
196
197 /*
198 * The aperture size is equal to 4M<<gws.
199 */
200 gws = (pci_read_config(dev, AGP_SIS_WINCTRL, 1) & 0x70) >> 4;
201 return (4*1024*1024) << gws;
202}
203
204static int
205agp_sis_set_aperture(device_t dev, u_int32_t aperture)
206{
207 int gws;
208
209 /*
210 * Check for a power of two and make sure its within the
211 * programmable range.
212 */
213 if (aperture & (aperture - 1)
214 || aperture < 4*1024*1024
215 || aperture > 256*1024*1024)
216 return EINVAL;
217
218 gws = ffs(aperture / 4*1024*1024) - 1;
219
220 pci_write_config(dev, AGP_SIS_WINCTRL,
221 ((pci_read_config(dev, AGP_SIS_WINCTRL, 1) & ~0x70)
222 | gws << 4), 1);
223
224 return 0;
225}
226
227static int
228agp_sis_bind_page(device_t dev, vm_offset_t offset, vm_offset_t physical)
229{
230 struct agp_sis_softc *sc = device_get_softc(dev);
231
232 if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT))
233 return EINVAL;
234
235 sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = physical;
236 return 0;
237}
238
239static int
240agp_sis_unbind_page(device_t dev, vm_offset_t offset)
241{
242 struct agp_sis_softc *sc = device_get_softc(dev);
243
244 if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT))
245 return EINVAL;
246
247 sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 0;
248 return 0;
249}
250
251static void
252agp_sis_flush_tlb(device_t dev)
253{
254 pci_write_config(dev, AGP_SIS_TLBFLUSH, 0x02, 1);
255}
256
257static device_method_t agp_sis_methods[] = {
258 /* Device interface */
259 DEVMETHOD(device_probe, agp_sis_probe),
260 DEVMETHOD(device_attach, agp_sis_attach),
261 DEVMETHOD(device_detach, agp_sis_detach),
262 DEVMETHOD(device_shutdown, bus_generic_shutdown),
263 DEVMETHOD(device_suspend, bus_generic_suspend),
264 DEVMETHOD(device_resume, bus_generic_resume),
265
266 /* AGP interface */
267 DEVMETHOD(agp_get_aperture, agp_sis_get_aperture),
268 DEVMETHOD(agp_set_aperture, agp_sis_set_aperture),
269 DEVMETHOD(agp_bind_page, agp_sis_bind_page),
270 DEVMETHOD(agp_unbind_page, agp_sis_unbind_page),
271 DEVMETHOD(agp_flush_tlb, agp_sis_flush_tlb),
272 DEVMETHOD(agp_enable, agp_generic_enable),
273 DEVMETHOD(agp_alloc_memory, agp_generic_alloc_memory),
274 DEVMETHOD(agp_free_memory, agp_generic_free_memory),
275 DEVMETHOD(agp_bind_memory, agp_generic_bind_memory),
276 DEVMETHOD(agp_unbind_memory, agp_generic_unbind_memory),
277
278 { 0, 0 }
279};
280
281static driver_t agp_sis_driver = {
282 "agp",
283 agp_sis_methods,
284 sizeof(struct agp_sis_softc),
285};
286
287static devclass_t agp_devclass;
288
289DRIVER_MODULE(agp_sis, hostb, agp_sis_driver, agp_devclass, 0, 0);
290MODULE_DEPEND(agp_sis, agp, 1, 1, 1);
291MODULE_DEPEND(agp_sis, pci, 1, 1, 1);
118 desc = agp_sis_match(dev);
119 if (desc) {
120 device_set_desc(dev, desc);
121 return BUS_PROBE_DEFAULT;
122 }
123
124 return ENXIO;
125}
126
127static int
128agp_sis_attach(device_t dev)
129{
130 struct agp_sis_softc *sc = device_get_softc(dev);
131 struct agp_gatt *gatt;
132 int error;
133
134 error = agp_generic_attach(dev);
135 if (error)
136 return error;
137
138 sc->initial_aperture = AGP_GET_APERTURE(dev);
139
140 for (;;) {
141 gatt = agp_alloc_gatt(dev);
142 if (gatt)
143 break;
144
145 /*
146 * Probably contigmalloc failure. Try reducing the
147 * aperture so that the gatt size reduces.
148 */
149 if (AGP_SET_APERTURE(dev, AGP_GET_APERTURE(dev) / 2)) {
150 agp_generic_detach(dev);
151 return ENOMEM;
152 }
153 }
154 sc->gatt = gatt;
155
156 /* Install the gatt. */
157 pci_write_config(dev, AGP_SIS_ATTBASE, gatt->ag_physical, 4);
158
159 /* Enable the aperture. */
160 pci_write_config(dev, AGP_SIS_WINCTRL,
161 pci_read_config(dev, AGP_SIS_WINCTRL, 1) | 3, 1);
162
163 /*
164 * Enable the TLB and make it automatically invalidate entries
165 * when the GATT is written.
166 */
167 pci_write_config(dev, AGP_SIS_TLBCTRL, 0x05, 1);
168
169 return 0;
170}
171
172static int
173agp_sis_detach(device_t dev)
174{
175 struct agp_sis_softc *sc = device_get_softc(dev);
176
177 agp_free_cdev(dev);
178
179 /* Disable the aperture.. */
180 pci_write_config(dev, AGP_SIS_WINCTRL,
181 pci_read_config(dev, AGP_SIS_WINCTRL, 1) & ~3, 1);
182
183 /* and the TLB. */
184 pci_write_config(dev, AGP_SIS_TLBCTRL, 0, 1);
185
186 /* Put the aperture back the way it started. */
187 AGP_SET_APERTURE(dev, sc->initial_aperture);
188
189 agp_free_gatt(sc->gatt);
190 agp_free_res(dev);
191 return 0;
192}
193
194static u_int32_t
195agp_sis_get_aperture(device_t dev)
196{
197 int gws;
198
199 /*
200 * The aperture size is equal to 4M<<gws.
201 */
202 gws = (pci_read_config(dev, AGP_SIS_WINCTRL, 1) & 0x70) >> 4;
203 return (4*1024*1024) << gws;
204}
205
206static int
207agp_sis_set_aperture(device_t dev, u_int32_t aperture)
208{
209 int gws;
210
211 /*
212 * Check for a power of two and make sure its within the
213 * programmable range.
214 */
215 if (aperture & (aperture - 1)
216 || aperture < 4*1024*1024
217 || aperture > 256*1024*1024)
218 return EINVAL;
219
220 gws = ffs(aperture / 4*1024*1024) - 1;
221
222 pci_write_config(dev, AGP_SIS_WINCTRL,
223 ((pci_read_config(dev, AGP_SIS_WINCTRL, 1) & ~0x70)
224 | gws << 4), 1);
225
226 return 0;
227}
228
229static int
230agp_sis_bind_page(device_t dev, vm_offset_t offset, vm_offset_t physical)
231{
232 struct agp_sis_softc *sc = device_get_softc(dev);
233
234 if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT))
235 return EINVAL;
236
237 sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = physical;
238 return 0;
239}
240
241static int
242agp_sis_unbind_page(device_t dev, vm_offset_t offset)
243{
244 struct agp_sis_softc *sc = device_get_softc(dev);
245
246 if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT))
247 return EINVAL;
248
249 sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 0;
250 return 0;
251}
252
253static void
254agp_sis_flush_tlb(device_t dev)
255{
256 pci_write_config(dev, AGP_SIS_TLBFLUSH, 0x02, 1);
257}
258
259static device_method_t agp_sis_methods[] = {
260 /* Device interface */
261 DEVMETHOD(device_probe, agp_sis_probe),
262 DEVMETHOD(device_attach, agp_sis_attach),
263 DEVMETHOD(device_detach, agp_sis_detach),
264 DEVMETHOD(device_shutdown, bus_generic_shutdown),
265 DEVMETHOD(device_suspend, bus_generic_suspend),
266 DEVMETHOD(device_resume, bus_generic_resume),
267
268 /* AGP interface */
269 DEVMETHOD(agp_get_aperture, agp_sis_get_aperture),
270 DEVMETHOD(agp_set_aperture, agp_sis_set_aperture),
271 DEVMETHOD(agp_bind_page, agp_sis_bind_page),
272 DEVMETHOD(agp_unbind_page, agp_sis_unbind_page),
273 DEVMETHOD(agp_flush_tlb, agp_sis_flush_tlb),
274 DEVMETHOD(agp_enable, agp_generic_enable),
275 DEVMETHOD(agp_alloc_memory, agp_generic_alloc_memory),
276 DEVMETHOD(agp_free_memory, agp_generic_free_memory),
277 DEVMETHOD(agp_bind_memory, agp_generic_bind_memory),
278 DEVMETHOD(agp_unbind_memory, agp_generic_unbind_memory),
279
280 { 0, 0 }
281};
282
283static driver_t agp_sis_driver = {
284 "agp",
285 agp_sis_methods,
286 sizeof(struct agp_sis_softc),
287};
288
289static devclass_t agp_devclass;
290
291DRIVER_MODULE(agp_sis, hostb, agp_sis_driver, agp_devclass, 0, 0);
292MODULE_DEPEND(agp_sis, agp, 1, 1, 1);
293MODULE_DEPEND(agp_sis, pci, 1, 1, 1);