Deleted Added
sdiff udiff text old ( 241856 ) new ( 241885 )
full compact
agp_apple.c (241856) agp_apple.c (241885)
1/*-
2 * Copyright (c) 2010 Nathan Whitehorn
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) 2010 Nathan Whitehorn
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_apple.c 241856 2012-10-22 03:41:14Z eadler $");
28__FBSDID("$FreeBSD: head/sys/dev/agp/agp_apple.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 <machine/resource.h>
43
44#include <dev/agp/agppriv.h>
45#include <dev/agp/agpreg.h>
46#include <dev/pci/pcivar.h>
47#include <dev/pci/pcireg.h>
48
49#include <vm/vm.h>
50#include <vm/vm_object.h>
51#include <vm/pmap.h>
52
53#define UNIN_AGP_GART_BASE 0x8c
54#define UNIN_AGP_BASE_ADDR 0x90
55#define UNIN_AGP_GART_CONTROL 0x94
56
57#define UNIN_AGP_GART_INVAL 0x00000001
58#define UNIN_AGP_GART_ENABLE 0x00000100
59#define UNIN_AGP_GART_2XRESET 0x00010000
60#define UNIN_AGP_U3_GART_PERFRD 0x00080000
61
62struct agp_apple_softc {
63 struct agp_softc agp;
64 uint32_t aperture;
65 struct agp_gatt *gatt;
66 int u3;
67 int needs_2x_reset;
68};
69
70static int
71agp_apple_probe(device_t dev)
72{
73
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 <machine/resource.h>
43
44#include <dev/agp/agppriv.h>
45#include <dev/agp/agpreg.h>
46#include <dev/pci/pcivar.h>
47#include <dev/pci/pcireg.h>
48
49#include <vm/vm.h>
50#include <vm/vm_object.h>
51#include <vm/pmap.h>
52
53#define UNIN_AGP_GART_BASE 0x8c
54#define UNIN_AGP_BASE_ADDR 0x90
55#define UNIN_AGP_GART_CONTROL 0x94
56
57#define UNIN_AGP_GART_INVAL 0x00000001
58#define UNIN_AGP_GART_ENABLE 0x00000100
59#define UNIN_AGP_GART_2XRESET 0x00010000
60#define UNIN_AGP_U3_GART_PERFRD 0x00080000
61
62struct agp_apple_softc {
63 struct agp_softc agp;
64 uint32_t aperture;
65 struct agp_gatt *gatt;
66 int u3;
67 int needs_2x_reset;
68};
69
70static int
71agp_apple_probe(device_t dev)
72{
73
74 if (resource_disabled("agp", device_get_unit(dev)))
75 return (ENXIO);
76
74 if (pci_get_class(dev) != PCIC_BRIDGE
75 || pci_get_subclass(dev) != PCIS_BRIDGE_HOST)
76 return (ENXIO);
77
78 if (agp_find_caps(dev) == 0)
79 return (ENXIO);
80
81 if (pci_get_class(dev) != PCIC_BRIDGE
82 || pci_get_subclass(dev) != PCIS_BRIDGE_HOST)
83 return (ENXIO);
84
85 switch (pci_get_devid(dev)) {
86 case 0x0020106b:
87 case 0x0027106b:
88 device_set_desc(dev, "Apple UniNorth AGP Bridge");
89 return (BUS_PROBE_DEFAULT);
90 case 0x002d106b:
91 device_set_desc(dev, "Apple UniNorth 1.5 AGP Bridge");
92 return (BUS_PROBE_DEFAULT);
93 case 0x0034106b:
94 device_set_desc(dev, "Apple UniNorth 2 AGP Bridge");
95 return (BUS_PROBE_DEFAULT);
96 case 0x004b106b:
97 case 0x0058106b:
98 case 0x0059106b:
99 device_set_desc(dev, "Apple U3 AGP Bridge");
100 return (BUS_PROBE_DEFAULT);
101 case 0x0066106b:
102 device_set_desc(dev, "Apple Intrepid AGP Bridge");
103 return (BUS_PROBE_DEFAULT);
104 }
105
106 return (ENXIO);
107}
108
109static int
110agp_apple_attach(device_t dev)
111{
112 struct agp_apple_softc *sc = device_get_softc(dev);
113 int error;
114
115 /* Record quirks */
116 sc->needs_2x_reset = 0;
117 sc->u3 = 0;
118 switch (pci_get_devid(dev)) {
119 case 0x0020106b:
120 case 0x0027106b:
121 sc->needs_2x_reset = 1;
122 break;
123 case 0x004b106b:
124 case 0x0058106b:
125 case 0x0059106b:
126 sc->u3 = 1;
127 break;
128 }
129
130 /* Set the aperture bus address base (must be 0) */
131 pci_write_config(dev, UNIN_AGP_BASE_ADDR, 0, 4);
132 agp_set_aperture_resource(dev, -1);
133
134 error = agp_generic_attach(dev);
135 if (error)
136 return (error);
137
138 sc->aperture = 256*1024*1024;
139
140 for (sc->aperture = 256*1024*1024; sc->aperture >= 4*1024*1024;
141 sc->aperture /= 2) {
142 sc->gatt = agp_alloc_gatt(dev);
143 if (sc->gatt)
144 break;
145 }
146 if (sc->aperture < 4*1024*1024) {
147 agp_generic_detach(dev);
148 return ENOMEM;
149 }
150
151 /* Install the gatt. */
152 AGP_SET_APERTURE(dev, sc->aperture);
153
154 /* XXX: U3 scratch page? */
155
156 /* Enable the aperture and TLB. */
157 AGP_FLUSH_TLB(dev);
158
159 return (0);
160}
161
162static int
163agp_apple_detach(device_t dev)
164{
165 struct agp_apple_softc *sc = device_get_softc(dev);
166
167 agp_free_cdev(dev);
168
169 /* Disable the aperture and TLB */
170 pci_write_config(dev, UNIN_AGP_GART_CONTROL, UNIN_AGP_GART_INVAL, 4);
171 pci_write_config(dev, UNIN_AGP_GART_CONTROL, 0, 4);
172
173 if (sc->needs_2x_reset) {
174 pci_write_config(dev, UNIN_AGP_GART_CONTROL,
175 UNIN_AGP_GART_2XRESET, 4);
176 pci_write_config(dev, UNIN_AGP_GART_CONTROL, 0, 4);
177 }
178
179 AGP_SET_APERTURE(dev, 0);
180
181 agp_free_gatt(sc->gatt);
182 agp_free_res(dev);
183 return 0;
184}
185
186static uint32_t
187agp_apple_get_aperture(device_t dev)
188{
189 struct agp_apple_softc *sc = device_get_softc(dev);
190
191 return (sc->aperture);
192}
193
194static int
195agp_apple_set_aperture(device_t dev, uint32_t aperture)
196{
197 struct agp_apple_softc *sc = device_get_softc(dev);
198
199 /*
200 * Check for a multiple of 4 MB and make sure it is within the
201 * programmable range.
202 */
203 if (aperture % (4*1024*1024)
204 || aperture < 4*1024*1024
205 || aperture > ((sc->u3) ? 512 : 256)*1024*1024)
206 return EINVAL;
207
208 /* The aperture value is a multiple of 4 MB */
209 aperture /= (4*1024*1024);
210
211 pci_write_config(dev, UNIN_AGP_GART_BASE,
212 (sc->gatt->ag_physical & 0xfffff000) | aperture, 4);
213
214 return (0);
215}
216
217static int
218agp_apple_bind_page(device_t dev, vm_offset_t offset, vm_offset_t physical)
219{
220 struct agp_apple_softc *sc = device_get_softc(dev);
221
222 if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT))
223 return EINVAL;
224
225 sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = physical;
226 __asm __volatile("dcbst 0,%0; sync" ::
227 "r"(&sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT]) : "memory");
228 return (0);
229}
230
231static int
232agp_apple_unbind_page(device_t dev, vm_offset_t offset)
233{
234 struct agp_apple_softc *sc = device_get_softc(dev);
235
236 if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT))
237 return EINVAL;
238
239 sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 0;
240 __asm __volatile("dcbst 0,%0; sync" ::
241 "r"(&sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT]) : "memory");
242 return (0);
243}
244
245static void
246agp_apple_flush_tlb(device_t dev)
247{
248 struct agp_apple_softc *sc = device_get_softc(dev);
249 uint32_t cntrl = UNIN_AGP_GART_ENABLE;
250
251 if (sc->u3)
252 cntrl |= UNIN_AGP_U3_GART_PERFRD;
253
254 pci_write_config(dev, UNIN_AGP_GART_CONTROL,
255 cntrl | UNIN_AGP_GART_INVAL, 4);
256 pci_write_config(dev, UNIN_AGP_GART_CONTROL, cntrl, 4);
257
258 if (sc->needs_2x_reset) {
259 pci_write_config(dev, UNIN_AGP_GART_CONTROL,
260 cntrl | UNIN_AGP_GART_2XRESET, 4);
261 pci_write_config(dev, UNIN_AGP_GART_CONTROL, cntrl, 4);
262 }
263}
264
265static device_method_t agp_apple_methods[] = {
266 /* Device interface */
267 DEVMETHOD(device_probe, agp_apple_probe),
268 DEVMETHOD(device_attach, agp_apple_attach),
269 DEVMETHOD(device_detach, agp_apple_detach),
270 DEVMETHOD(device_shutdown, bus_generic_shutdown),
271 DEVMETHOD(device_suspend, bus_generic_suspend),
272 DEVMETHOD(device_resume, bus_generic_resume),
273
274 /* AGP interface */
275 DEVMETHOD(agp_get_aperture, agp_apple_get_aperture),
276 DEVMETHOD(agp_set_aperture, agp_apple_set_aperture),
277 DEVMETHOD(agp_bind_page, agp_apple_bind_page),
278 DEVMETHOD(agp_unbind_page, agp_apple_unbind_page),
279 DEVMETHOD(agp_flush_tlb, agp_apple_flush_tlb),
280 DEVMETHOD(agp_enable, agp_generic_enable),
281 DEVMETHOD(agp_alloc_memory, agp_generic_alloc_memory),
282 DEVMETHOD(agp_free_memory, agp_generic_free_memory),
283 DEVMETHOD(agp_bind_memory, agp_generic_bind_memory),
284 DEVMETHOD(agp_unbind_memory, agp_generic_unbind_memory),
285
286 { 0, 0 }
287};
288
289static driver_t agp_apple_driver = {
290 "agp",
291 agp_apple_methods,
292 sizeof(struct agp_apple_softc),
293};
294
295static devclass_t agp_devclass;
296
297DRIVER_MODULE(agp_apple, hostb, agp_apple_driver, agp_devclass, 0, 0);
298MODULE_DEPEND(agp_apple, agp, 1, 1, 1);
299MODULE_DEPEND(agp_apple, pci, 1, 1, 1);
77 if (pci_get_class(dev) != PCIC_BRIDGE
78 || pci_get_subclass(dev) != PCIS_BRIDGE_HOST)
79 return (ENXIO);
80
81 if (agp_find_caps(dev) == 0)
82 return (ENXIO);
83
84 if (pci_get_class(dev) != PCIC_BRIDGE
85 || pci_get_subclass(dev) != PCIS_BRIDGE_HOST)
86 return (ENXIO);
87
88 switch (pci_get_devid(dev)) {
89 case 0x0020106b:
90 case 0x0027106b:
91 device_set_desc(dev, "Apple UniNorth AGP Bridge");
92 return (BUS_PROBE_DEFAULT);
93 case 0x002d106b:
94 device_set_desc(dev, "Apple UniNorth 1.5 AGP Bridge");
95 return (BUS_PROBE_DEFAULT);
96 case 0x0034106b:
97 device_set_desc(dev, "Apple UniNorth 2 AGP Bridge");
98 return (BUS_PROBE_DEFAULT);
99 case 0x004b106b:
100 case 0x0058106b:
101 case 0x0059106b:
102 device_set_desc(dev, "Apple U3 AGP Bridge");
103 return (BUS_PROBE_DEFAULT);
104 case 0x0066106b:
105 device_set_desc(dev, "Apple Intrepid AGP Bridge");
106 return (BUS_PROBE_DEFAULT);
107 }
108
109 return (ENXIO);
110}
111
112static int
113agp_apple_attach(device_t dev)
114{
115 struct agp_apple_softc *sc = device_get_softc(dev);
116 int error;
117
118 /* Record quirks */
119 sc->needs_2x_reset = 0;
120 sc->u3 = 0;
121 switch (pci_get_devid(dev)) {
122 case 0x0020106b:
123 case 0x0027106b:
124 sc->needs_2x_reset = 1;
125 break;
126 case 0x004b106b:
127 case 0x0058106b:
128 case 0x0059106b:
129 sc->u3 = 1;
130 break;
131 }
132
133 /* Set the aperture bus address base (must be 0) */
134 pci_write_config(dev, UNIN_AGP_BASE_ADDR, 0, 4);
135 agp_set_aperture_resource(dev, -1);
136
137 error = agp_generic_attach(dev);
138 if (error)
139 return (error);
140
141 sc->aperture = 256*1024*1024;
142
143 for (sc->aperture = 256*1024*1024; sc->aperture >= 4*1024*1024;
144 sc->aperture /= 2) {
145 sc->gatt = agp_alloc_gatt(dev);
146 if (sc->gatt)
147 break;
148 }
149 if (sc->aperture < 4*1024*1024) {
150 agp_generic_detach(dev);
151 return ENOMEM;
152 }
153
154 /* Install the gatt. */
155 AGP_SET_APERTURE(dev, sc->aperture);
156
157 /* XXX: U3 scratch page? */
158
159 /* Enable the aperture and TLB. */
160 AGP_FLUSH_TLB(dev);
161
162 return (0);
163}
164
165static int
166agp_apple_detach(device_t dev)
167{
168 struct agp_apple_softc *sc = device_get_softc(dev);
169
170 agp_free_cdev(dev);
171
172 /* Disable the aperture and TLB */
173 pci_write_config(dev, UNIN_AGP_GART_CONTROL, UNIN_AGP_GART_INVAL, 4);
174 pci_write_config(dev, UNIN_AGP_GART_CONTROL, 0, 4);
175
176 if (sc->needs_2x_reset) {
177 pci_write_config(dev, UNIN_AGP_GART_CONTROL,
178 UNIN_AGP_GART_2XRESET, 4);
179 pci_write_config(dev, UNIN_AGP_GART_CONTROL, 0, 4);
180 }
181
182 AGP_SET_APERTURE(dev, 0);
183
184 agp_free_gatt(sc->gatt);
185 agp_free_res(dev);
186 return 0;
187}
188
189static uint32_t
190agp_apple_get_aperture(device_t dev)
191{
192 struct agp_apple_softc *sc = device_get_softc(dev);
193
194 return (sc->aperture);
195}
196
197static int
198agp_apple_set_aperture(device_t dev, uint32_t aperture)
199{
200 struct agp_apple_softc *sc = device_get_softc(dev);
201
202 /*
203 * Check for a multiple of 4 MB and make sure it is within the
204 * programmable range.
205 */
206 if (aperture % (4*1024*1024)
207 || aperture < 4*1024*1024
208 || aperture > ((sc->u3) ? 512 : 256)*1024*1024)
209 return EINVAL;
210
211 /* The aperture value is a multiple of 4 MB */
212 aperture /= (4*1024*1024);
213
214 pci_write_config(dev, UNIN_AGP_GART_BASE,
215 (sc->gatt->ag_physical & 0xfffff000) | aperture, 4);
216
217 return (0);
218}
219
220static int
221agp_apple_bind_page(device_t dev, vm_offset_t offset, vm_offset_t physical)
222{
223 struct agp_apple_softc *sc = device_get_softc(dev);
224
225 if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT))
226 return EINVAL;
227
228 sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = physical;
229 __asm __volatile("dcbst 0,%0; sync" ::
230 "r"(&sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT]) : "memory");
231 return (0);
232}
233
234static int
235agp_apple_unbind_page(device_t dev, vm_offset_t offset)
236{
237 struct agp_apple_softc *sc = device_get_softc(dev);
238
239 if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT))
240 return EINVAL;
241
242 sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 0;
243 __asm __volatile("dcbst 0,%0; sync" ::
244 "r"(&sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT]) : "memory");
245 return (0);
246}
247
248static void
249agp_apple_flush_tlb(device_t dev)
250{
251 struct agp_apple_softc *sc = device_get_softc(dev);
252 uint32_t cntrl = UNIN_AGP_GART_ENABLE;
253
254 if (sc->u3)
255 cntrl |= UNIN_AGP_U3_GART_PERFRD;
256
257 pci_write_config(dev, UNIN_AGP_GART_CONTROL,
258 cntrl | UNIN_AGP_GART_INVAL, 4);
259 pci_write_config(dev, UNIN_AGP_GART_CONTROL, cntrl, 4);
260
261 if (sc->needs_2x_reset) {
262 pci_write_config(dev, UNIN_AGP_GART_CONTROL,
263 cntrl | UNIN_AGP_GART_2XRESET, 4);
264 pci_write_config(dev, UNIN_AGP_GART_CONTROL, cntrl, 4);
265 }
266}
267
268static device_method_t agp_apple_methods[] = {
269 /* Device interface */
270 DEVMETHOD(device_probe, agp_apple_probe),
271 DEVMETHOD(device_attach, agp_apple_attach),
272 DEVMETHOD(device_detach, agp_apple_detach),
273 DEVMETHOD(device_shutdown, bus_generic_shutdown),
274 DEVMETHOD(device_suspend, bus_generic_suspend),
275 DEVMETHOD(device_resume, bus_generic_resume),
276
277 /* AGP interface */
278 DEVMETHOD(agp_get_aperture, agp_apple_get_aperture),
279 DEVMETHOD(agp_set_aperture, agp_apple_set_aperture),
280 DEVMETHOD(agp_bind_page, agp_apple_bind_page),
281 DEVMETHOD(agp_unbind_page, agp_apple_unbind_page),
282 DEVMETHOD(agp_flush_tlb, agp_apple_flush_tlb),
283 DEVMETHOD(agp_enable, agp_generic_enable),
284 DEVMETHOD(agp_alloc_memory, agp_generic_alloc_memory),
285 DEVMETHOD(agp_free_memory, agp_generic_free_memory),
286 DEVMETHOD(agp_bind_memory, agp_generic_bind_memory),
287 DEVMETHOD(agp_unbind_memory, agp_generic_unbind_memory),
288
289 { 0, 0 }
290};
291
292static driver_t agp_apple_driver = {
293 "agp",
294 agp_apple_methods,
295 sizeof(struct agp_apple_softc),
296};
297
298static devclass_t agp_devclass;
299
300DRIVER_MODULE(agp_apple, hostb, agp_apple_driver, agp_devclass, 0, 0);
301MODULE_DEPEND(agp_apple, agp, 1, 1, 1);
302MODULE_DEPEND(agp_apple, pci, 1, 1, 1);