Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * SiS AGPGART routines. | |
3 | */ | |
4 | ||
5 | #include <linux/module.h> | |
6 | #include <linux/pci.h> | |
7 | #include <linux/init.h> | |
8 | #include <linux/agp_backend.h> | |
9 | #include <linux/delay.h> | |
10 | #include "agp.h" | |
11 | ||
12 | #define SIS_ATTBASE 0x90 | |
13 | #define SIS_APSIZE 0x94 | |
14 | #define SIS_TLBCNTRL 0x97 | |
15 | #define SIS_TLBFLUSH 0x98 | |
16 | ||
2e374748 CC |
17 | #define PCI_DEVICE_ID_SI_662 0x0662 |
18 | #define PCI_DEVICE_ID_SI_671 0x0671 | |
19 | ||
0bbed20e BP |
20 | static bool agp_sis_force_delay = 0; |
21 | static int agp_sis_agp_spec = -1; | |
1da177e4 LT |
22 | |
23 | static int sis_fetch_size(void) | |
24 | { | |
25 | u8 temp_size; | |
26 | int i; | |
27 | struct aper_size_info_8 *values; | |
28 | ||
29 | pci_read_config_byte(agp_bridge->dev, SIS_APSIZE, &temp_size); | |
30 | values = A_SIZE_8(agp_bridge->driver->aperture_sizes); | |
31 | for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) { | |
32 | if ((temp_size == values[i].size_value) || | |
b7d0640f SB |
33 | ((temp_size & ~(0x07)) == |
34 | (values[i].size_value & ~(0x07)))) { | |
1da177e4 LT |
35 | agp_bridge->previous_size = |
36 | agp_bridge->current_size = (void *) (values + i); | |
37 | ||
38 | agp_bridge->aperture_size_idx = i; | |
39 | return values[i].size; | |
40 | } | |
41 | } | |
42 | ||
43 | return 0; | |
44 | } | |
45 | ||
46 | static void sis_tlbflush(struct agp_memory *mem) | |
47 | { | |
48 | pci_write_config_byte(agp_bridge->dev, SIS_TLBFLUSH, 0x02); | |
49 | } | |
50 | ||
51 | static int sis_configure(void) | |
52 | { | |
1da177e4 LT |
53 | struct aper_size_info_8 *current_size; |
54 | ||
55 | current_size = A_SIZE_8(agp_bridge->current_size); | |
56 | pci_write_config_byte(agp_bridge->dev, SIS_TLBCNTRL, 0x05); | |
e501b3d8 BH |
57 | agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev, |
58 | AGP_APERTURE_BAR); | |
1da177e4 LT |
59 | pci_write_config_dword(agp_bridge->dev, SIS_ATTBASE, |
60 | agp_bridge->gatt_bus_addr); | |
61 | pci_write_config_byte(agp_bridge->dev, SIS_APSIZE, | |
62 | current_size->size_value); | |
63 | return 0; | |
64 | } | |
65 | ||
66 | static void sis_cleanup(void) | |
67 | { | |
68 | struct aper_size_info_8 *previous_size; | |
69 | ||
70 | previous_size = A_SIZE_8(agp_bridge->previous_size); | |
71 | pci_write_config_byte(agp_bridge->dev, SIS_APSIZE, | |
72 | (previous_size->size_value & ~(0x03))); | |
73 | } | |
74 | ||
75 | static void sis_delayed_enable(struct agp_bridge_data *bridge, u32 mode) | |
76 | { | |
77 | struct pci_dev *device = NULL; | |
78 | u32 command; | |
79 | int rate; | |
80 | ||
e3cf6951 BH |
81 | dev_info(&agp_bridge->dev->dev, "AGP %d.%d bridge\n", |
82 | agp_bridge->major_version, agp_bridge->minor_version); | |
1da177e4 LT |
83 | |
84 | pci_read_config_dword(agp_bridge->dev, agp_bridge->capndx + PCI_AGP_STATUS, &command); | |
85 | command = agp_collect_device_status(bridge, mode, command); | |
86 | command |= AGPSTAT_AGP_ENABLE; | |
87 | rate = (command & 0x7) << 2; | |
88 | ||
89 | for_each_pci_dev(device) { | |
90 | u8 agp = pci_find_capability(device, PCI_CAP_ID_AGP); | |
91 | if (!agp) | |
92 | continue; | |
93 | ||
e3cf6951 BH |
94 | dev_info(&agp_bridge->dev->dev, "putting AGP V3 device at %s into %dx mode\n", |
95 | pci_name(device), rate); | |
1da177e4 LT |
96 | |
97 | pci_write_config_dword(device, agp + PCI_AGP_COMMAND, command); | |
98 | ||
99 | /* | |
100 | * Weird: on some sis chipsets any rate change in the target | |
101 | * command register triggers a 5ms screwup during which the master | |
102 | * cannot be configured | |
103 | */ | |
104 | if (device->device == bridge->dev->device) { | |
e3cf6951 | 105 | dev_info(&agp_bridge->dev->dev, "SiS delay workaround: giving bridge time to recover\n"); |
1da177e4 LT |
106 | msleep(10); |
107 | } | |
108 | } | |
109 | } | |
110 | ||
e5524f35 | 111 | static const struct aper_size_info_8 sis_generic_sizes[7] = |
1da177e4 LT |
112 | { |
113 | {256, 65536, 6, 99}, | |
114 | {128, 32768, 5, 83}, | |
115 | {64, 16384, 4, 67}, | |
116 | {32, 8192, 3, 51}, | |
117 | {16, 4096, 2, 35}, | |
118 | {8, 2048, 1, 19}, | |
119 | {4, 1024, 0, 3} | |
120 | }; | |
121 | ||
408b664a | 122 | static struct agp_bridge_driver sis_driver = { |
1da177e4 | 123 | .owner = THIS_MODULE, |
6a92a4e0 | 124 | .aperture_sizes = sis_generic_sizes, |
1da177e4 LT |
125 | .size_type = U8_APER_SIZE, |
126 | .num_aperture_sizes = 7, | |
61cf0593 | 127 | .needs_scratch_page = true, |
1da177e4 LT |
128 | .configure = sis_configure, |
129 | .fetch_size = sis_fetch_size, | |
130 | .cleanup = sis_cleanup, | |
131 | .tlb_flush = sis_tlbflush, | |
132 | .mask_memory = agp_generic_mask_memory, | |
133 | .masks = NULL, | |
134 | .agp_enable = agp_generic_enable, | |
135 | .cache_flush = global_cache_flush, | |
136 | .create_gatt_table = agp_generic_create_gatt_table, | |
137 | .free_gatt_table = agp_generic_free_gatt_table, | |
138 | .insert_memory = agp_generic_insert_memory, | |
139 | .remove_memory = agp_generic_remove_memory, | |
140 | .alloc_by_type = agp_generic_alloc_by_type, | |
141 | .free_by_type = agp_generic_free_by_type, | |
142 | .agp_alloc_page = agp_generic_alloc_page, | |
5f310b63 | 143 | .agp_alloc_pages = agp_generic_alloc_pages, |
1da177e4 | 144 | .agp_destroy_page = agp_generic_destroy_page, |
5f310b63 | 145 | .agp_destroy_pages = agp_generic_destroy_pages, |
bf1e5989 | 146 | .agp_type_to_mask_type = agp_generic_type_to_mask_type, |
1da177e4 LT |
147 | }; |
148 | ||
1da177e4 | 149 | // chipsets that require the 'delay hack' |
0bbed20e | 150 | static int sis_broken_chipsets[] = { |
1da177e4 LT |
151 | PCI_DEVICE_ID_SI_648, |
152 | PCI_DEVICE_ID_SI_746, | |
153 | 0 // terminator | |
154 | }; | |
155 | ||
bcd2982a | 156 | static void sis_get_driver(struct agp_bridge_data *bridge) |
1da177e4 LT |
157 | { |
158 | int i; | |
159 | ||
6a92a4e0 DJ |
160 | for (i=0; sis_broken_chipsets[i]!=0; ++i) |
161 | if (bridge->dev->device==sis_broken_chipsets[i]) | |
1da177e4 LT |
162 | break; |
163 | ||
6a92a4e0 | 164 | if (sis_broken_chipsets[i] || agp_sis_force_delay) |
1da177e4 LT |
165 | sis_driver.agp_enable=sis_delayed_enable; |
166 | ||
167 | // sis chipsets that indicate less than agp3.5 | |
168 | // are not actually fully agp3 compliant | |
169 | if ((agp_bridge->major_version == 3 && agp_bridge->minor_version >= 5 | |
170 | && agp_sis_agp_spec!=0) || agp_sis_agp_spec==1) { | |
171 | sis_driver.aperture_sizes = agp3_generic_sizes; | |
172 | sis_driver.size_type = U16_APER_SIZE; | |
173 | sis_driver.num_aperture_sizes = AGP_GENERIC_SIZES_ENTRIES; | |
174 | sis_driver.configure = agp3_generic_configure; | |
175 | sis_driver.fetch_size = agp3_generic_fetch_size; | |
176 | sis_driver.cleanup = agp3_generic_cleanup; | |
177 | sis_driver.tlb_flush = agp3_generic_tlbflush; | |
178 | } | |
179 | } | |
180 | ||
181 | ||
bcd2982a | 182 | static int agp_sis_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
1da177e4 | 183 | { |
1da177e4 LT |
184 | struct agp_bridge_data *bridge; |
185 | u8 cap_ptr; | |
1da177e4 LT |
186 | |
187 | cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP); | |
188 | if (!cap_ptr) | |
189 | return -ENODEV; | |
190 | ||
1da177e4 | 191 | |
e3cf6951 BH |
192 | dev_info(&pdev->dev, "SiS chipset [%04x/%04x]\n", |
193 | pdev->vendor, pdev->device); | |
1da177e4 LT |
194 | bridge = agp_alloc_bridge(); |
195 | if (!bridge) | |
196 | return -ENOMEM; | |
197 | ||
198 | bridge->driver = &sis_driver; | |
199 | bridge->dev = pdev; | |
200 | bridge->capndx = cap_ptr; | |
201 | ||
202 | get_agp_version(bridge); | |
203 | ||
204 | /* Fill in the mode register */ | |
205 | pci_read_config_dword(pdev, bridge->capndx+PCI_AGP_STATUS, &bridge->mode); | |
206 | sis_get_driver(bridge); | |
207 | ||
208 | pci_set_drvdata(pdev, bridge); | |
209 | return agp_add_bridge(bridge); | |
210 | } | |
211 | ||
39af33fc | 212 | static void agp_sis_remove(struct pci_dev *pdev) |
1da177e4 LT |
213 | { |
214 | struct agp_bridge_data *bridge = pci_get_drvdata(pdev); | |
215 | ||
216 | agp_remove_bridge(bridge); | |
217 | agp_put_bridge(bridge); | |
218 | } | |
219 | ||
16469a0e SB |
220 | #ifdef CONFIG_PM |
221 | ||
222 | static int agp_sis_suspend(struct pci_dev *pdev, pm_message_t state) | |
223 | { | |
224 | pci_save_state(pdev); | |
225 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
226 | ||
227 | return 0; | |
228 | } | |
229 | ||
230 | static int agp_sis_resume(struct pci_dev *pdev) | |
231 | { | |
232 | pci_set_power_state(pdev, PCI_D0); | |
233 | pci_restore_state(pdev); | |
234 | ||
235 | return sis_driver.configure(); | |
236 | } | |
237 | ||
238 | #endif /* CONFIG_PM */ | |
239 | ||
1da177e4 LT |
240 | static struct pci_device_id agp_sis_pci_table[] = { |
241 | { | |
82eab130 ON |
242 | .class = (PCI_CLASS_BRIDGE_HOST << 8), |
243 | .class_mask = ~0, | |
244 | .vendor = PCI_VENDOR_ID_SI, | |
91397585 | 245 | .device = PCI_DEVICE_ID_SI_5591, |
82eab130 ON |
246 | .subvendor = PCI_ANY_ID, |
247 | .subdevice = PCI_ANY_ID, | |
248 | }, | |
249 | { | |
250 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
251 | .class_mask = ~0, | |
252 | .vendor = PCI_VENDOR_ID_SI, | |
253 | .device = PCI_DEVICE_ID_SI_530, | |
254 | .subvendor = PCI_ANY_ID, | |
255 | .subdevice = PCI_ANY_ID, | |
256 | }, | |
257 | { | |
258 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
259 | .class_mask = ~0, | |
260 | .vendor = PCI_VENDOR_ID_SI, | |
261 | .device = PCI_DEVICE_ID_SI_540, | |
262 | .subvendor = PCI_ANY_ID, | |
263 | .subdevice = PCI_ANY_ID, | |
264 | }, | |
265 | { | |
266 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
267 | .class_mask = ~0, | |
268 | .vendor = PCI_VENDOR_ID_SI, | |
269 | .device = PCI_DEVICE_ID_SI_550, | |
270 | .subvendor = PCI_ANY_ID, | |
271 | .subdevice = PCI_ANY_ID, | |
272 | }, | |
273 | { | |
274 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
275 | .class_mask = ~0, | |
276 | .vendor = PCI_VENDOR_ID_SI, | |
277 | .device = PCI_DEVICE_ID_SI_620, | |
278 | .subvendor = PCI_ANY_ID, | |
279 | .subdevice = PCI_ANY_ID, | |
280 | }, | |
281 | { | |
282 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
283 | .class_mask = ~0, | |
284 | .vendor = PCI_VENDOR_ID_SI, | |
285 | .device = PCI_DEVICE_ID_SI_630, | |
286 | .subvendor = PCI_ANY_ID, | |
287 | .subdevice = PCI_ANY_ID, | |
288 | }, | |
289 | { | |
290 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
291 | .class_mask = ~0, | |
292 | .vendor = PCI_VENDOR_ID_SI, | |
293 | .device = PCI_DEVICE_ID_SI_635, | |
294 | .subvendor = PCI_ANY_ID, | |
295 | .subdevice = PCI_ANY_ID, | |
296 | }, | |
297 | { | |
298 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
299 | .class_mask = ~0, | |
300 | .vendor = PCI_VENDOR_ID_SI, | |
301 | .device = PCI_DEVICE_ID_SI_645, | |
302 | .subvendor = PCI_ANY_ID, | |
303 | .subdevice = PCI_ANY_ID, | |
304 | }, | |
305 | { | |
306 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
307 | .class_mask = ~0, | |
308 | .vendor = PCI_VENDOR_ID_SI, | |
309 | .device = PCI_DEVICE_ID_SI_646, | |
310 | .subvendor = PCI_ANY_ID, | |
311 | .subdevice = PCI_ANY_ID, | |
312 | }, | |
313 | { | |
314 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
315 | .class_mask = ~0, | |
316 | .vendor = PCI_VENDOR_ID_SI, | |
317 | .device = PCI_DEVICE_ID_SI_648, | |
318 | .subvendor = PCI_ANY_ID, | |
319 | .subdevice = PCI_ANY_ID, | |
320 | }, | |
321 | { | |
322 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
323 | .class_mask = ~0, | |
324 | .vendor = PCI_VENDOR_ID_SI, | |
325 | .device = PCI_DEVICE_ID_SI_650, | |
326 | .subvendor = PCI_ANY_ID, | |
327 | .subdevice = PCI_ANY_ID, | |
328 | }, | |
329 | { | |
330 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
331 | .class_mask = ~0, | |
332 | .vendor = PCI_VENDOR_ID_SI, | |
333 | .device = PCI_DEVICE_ID_SI_651, | |
334 | .subvendor = PCI_ANY_ID, | |
335 | .subdevice = PCI_ANY_ID, | |
336 | }, | |
337 | { | |
338 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
339 | .class_mask = ~0, | |
340 | .vendor = PCI_VENDOR_ID_SI, | |
341 | .device = PCI_DEVICE_ID_SI_655, | |
342 | .subvendor = PCI_ANY_ID, | |
343 | .subdevice = PCI_ANY_ID, | |
344 | }, | |
345 | { | |
346 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
347 | .class_mask = ~0, | |
348 | .vendor = PCI_VENDOR_ID_SI, | |
349 | .device = PCI_DEVICE_ID_SI_661, | |
350 | .subvendor = PCI_ANY_ID, | |
351 | .subdevice = PCI_ANY_ID, | |
352 | }, | |
2e374748 CC |
353 | { |
354 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
355 | .class_mask = ~0, | |
356 | .vendor = PCI_VENDOR_ID_SI, | |
357 | .device = PCI_DEVICE_ID_SI_662, | |
358 | .subvendor = PCI_ANY_ID, | |
359 | .subdevice = PCI_ANY_ID, | |
360 | }, | |
361 | { | |
362 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
363 | .class_mask = ~0, | |
364 | .vendor = PCI_VENDOR_ID_SI, | |
365 | .device = PCI_DEVICE_ID_SI_671, | |
366 | .subvendor = PCI_ANY_ID, | |
367 | .subdevice = PCI_ANY_ID, | |
368 | }, | |
82eab130 ON |
369 | { |
370 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
371 | .class_mask = ~0, | |
372 | .vendor = PCI_VENDOR_ID_SI, | |
373 | .device = PCI_DEVICE_ID_SI_730, | |
374 | .subvendor = PCI_ANY_ID, | |
375 | .subdevice = PCI_ANY_ID, | |
376 | }, | |
377 | { | |
378 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
379 | .class_mask = ~0, | |
380 | .vendor = PCI_VENDOR_ID_SI, | |
381 | .device = PCI_DEVICE_ID_SI_735, | |
382 | .subvendor = PCI_ANY_ID, | |
383 | .subdevice = PCI_ANY_ID, | |
384 | }, | |
385 | { | |
386 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
387 | .class_mask = ~0, | |
388 | .vendor = PCI_VENDOR_ID_SI, | |
389 | .device = PCI_DEVICE_ID_SI_740, | |
390 | .subvendor = PCI_ANY_ID, | |
391 | .subdevice = PCI_ANY_ID, | |
392 | }, | |
393 | { | |
394 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
395 | .class_mask = ~0, | |
396 | .vendor = PCI_VENDOR_ID_SI, | |
397 | .device = PCI_DEVICE_ID_SI_741, | |
398 | .subvendor = PCI_ANY_ID, | |
399 | .subdevice = PCI_ANY_ID, | |
400 | }, | |
401 | { | |
402 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
403 | .class_mask = ~0, | |
404 | .vendor = PCI_VENDOR_ID_SI, | |
405 | .device = PCI_DEVICE_ID_SI_745, | |
406 | .subvendor = PCI_ANY_ID, | |
407 | .subdevice = PCI_ANY_ID, | |
408 | }, | |
409 | { | |
410 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
411 | .class_mask = ~0, | |
412 | .vendor = PCI_VENDOR_ID_SI, | |
413 | .device = PCI_DEVICE_ID_SI_746, | |
414 | .subvendor = PCI_ANY_ID, | |
415 | .subdevice = PCI_ANY_ID, | |
416 | }, | |
1da177e4 LT |
417 | { } |
418 | }; | |
419 | ||
420 | MODULE_DEVICE_TABLE(pci, agp_sis_pci_table); | |
421 | ||
422 | static struct pci_driver agp_sis_pci_driver = { | |
423 | .name = "agpgart-sis", | |
424 | .id_table = agp_sis_pci_table, | |
425 | .probe = agp_sis_probe, | |
426 | .remove = agp_sis_remove, | |
16469a0e SB |
427 | #ifdef CONFIG_PM |
428 | .suspend = agp_sis_suspend, | |
429 | .resume = agp_sis_resume, | |
430 | #endif | |
1da177e4 LT |
431 | }; |
432 | ||
433 | static int __init agp_sis_init(void) | |
434 | { | |
435 | if (agp_off) | |
436 | return -EINVAL; | |
437 | return pci_register_driver(&agp_sis_pci_driver); | |
438 | } | |
439 | ||
440 | static void __exit agp_sis_cleanup(void) | |
441 | { | |
442 | pci_unregister_driver(&agp_sis_pci_driver); | |
443 | } | |
444 | ||
445 | module_init(agp_sis_init); | |
446 | module_exit(agp_sis_cleanup); | |
447 | ||
448 | module_param(agp_sis_force_delay, bool, 0); | |
449 | MODULE_PARM_DESC(agp_sis_force_delay,"forces sis delay hack"); | |
450 | module_param(agp_sis_agp_spec, int, 0); | |
451 | MODULE_PARM_DESC(agp_sis_agp_spec,"0=force sis init, 1=force generic agp3 init, default: autodetect"); | |
452 | MODULE_LICENSE("GPL and additional rights"); |