Branch data Line data Source code
1 : : /*
2 : : * Intel AGPGART routines.
3 : : */
4 : :
5 : : #include <linux/module.h>
6 : : #include <linux/pci.h>
7 : : #include <linux/slab.h>
8 : : #include <linux/init.h>
9 : : #include <linux/kernel.h>
10 : : #include <linux/pagemap.h>
11 : : #include <linux/agp_backend.h>
12 : : #include <asm/smp.h>
13 : : #include "agp.h"
14 : : #include "intel-agp.h"
15 : : #include <drm/intel-gtt.h>
16 : :
17 : 0 : static int intel_fetch_size(void)
18 : : {
19 : 0 : int i;
20 : 0 : u16 temp;
21 : 0 : struct aper_size_info_16 *values;
22 : :
23 : 0 : pci_read_config_word(agp_bridge->dev, INTEL_APSIZE, &temp);
24 : 0 : values = A_SIZE_16(agp_bridge->driver->aperture_sizes);
25 : :
26 [ # # ]: 0 : for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) {
27 [ # # ]: 0 : if (temp == values[i].size_value) {
28 : 0 : agp_bridge->previous_size = agp_bridge->current_size = (void *) (values + i);
29 : 0 : agp_bridge->aperture_size_idx = i;
30 : 0 : return values[i].size;
31 : : }
32 : : }
33 : :
34 : : return 0;
35 : : }
36 : :
37 : 0 : static int __intel_8xx_fetch_size(u8 temp)
38 : : {
39 : 0 : int i;
40 : 0 : struct aper_size_info_8 *values;
41 : :
42 : 0 : values = A_SIZE_8(agp_bridge->driver->aperture_sizes);
43 : :
44 [ # # # # ]: 0 : for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) {
45 [ # # # # ]: 0 : if (temp == values[i].size_value) {
46 : 0 : agp_bridge->previous_size =
47 : 0 : agp_bridge->current_size = (void *) (values + i);
48 : 0 : agp_bridge->aperture_size_idx = i;
49 : 0 : return values[i].size;
50 : : }
51 : : }
52 : : return 0;
53 : : }
54 : :
55 : 0 : static int intel_8xx_fetch_size(void)
56 : : {
57 : 0 : u8 temp;
58 : :
59 : 0 : pci_read_config_byte(agp_bridge->dev, INTEL_APSIZE, &temp);
60 : 0 : return __intel_8xx_fetch_size(temp);
61 : : }
62 : :
63 : 0 : static int intel_815_fetch_size(void)
64 : : {
65 : 0 : u8 temp;
66 : :
67 : : /* Intel 815 chipsets have a _weird_ APSIZE register with only
68 : : * one non-reserved bit, so mask the others out ... */
69 : 0 : pci_read_config_byte(agp_bridge->dev, INTEL_APSIZE, &temp);
70 : 0 : temp &= (1 << 3);
71 : :
72 : 0 : return __intel_8xx_fetch_size(temp);
73 : : }
74 : :
75 : 0 : static void intel_tlbflush(struct agp_memory *mem)
76 : : {
77 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x2200);
78 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x2280);
79 : 0 : }
80 : :
81 : :
82 : 0 : static void intel_8xx_tlbflush(struct agp_memory *mem)
83 : : {
84 : 0 : u32 temp;
85 : 0 : pci_read_config_dword(agp_bridge->dev, INTEL_AGPCTRL, &temp);
86 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, temp & ~(1 << 7));
87 : 0 : pci_read_config_dword(agp_bridge->dev, INTEL_AGPCTRL, &temp);
88 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, temp | (1 << 7));
89 : 0 : }
90 : :
91 : :
92 : 0 : static void intel_cleanup(void)
93 : : {
94 : 0 : u16 temp;
95 : 0 : struct aper_size_info_16 *previous_size;
96 : :
97 : 0 : previous_size = A_SIZE_16(agp_bridge->previous_size);
98 : 0 : pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp);
99 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG, temp & ~(1 << 9));
100 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_APSIZE, previous_size->size_value);
101 : 0 : }
102 : :
103 : :
104 : 0 : static void intel_8xx_cleanup(void)
105 : : {
106 : 0 : u16 temp;
107 : 0 : struct aper_size_info_8 *previous_size;
108 : :
109 : 0 : previous_size = A_SIZE_8(agp_bridge->previous_size);
110 : 0 : pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp);
111 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG, temp & ~(1 << 9));
112 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, previous_size->size_value);
113 : 0 : }
114 : :
115 : :
116 : 0 : static int intel_configure(void)
117 : : {
118 : 0 : u16 temp2;
119 : 0 : struct aper_size_info_16 *current_size;
120 : :
121 : 0 : current_size = A_SIZE_16(agp_bridge->current_size);
122 : :
123 : : /* aperture size */
124 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
125 : :
126 : : /* address to map to */
127 : 0 : agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,
128 : : AGP_APERTURE_BAR);
129 : :
130 : : /* attbase - aperture base */
131 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
132 : :
133 : : /* agpctrl */
134 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x2280);
135 : :
136 : : /* paccfg/nbxcfg */
137 : 0 : pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp2);
138 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG,
139 : 0 : (temp2 & ~(1 << 10)) | (1 << 9));
140 : : /* clear any possible error conditions */
141 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_ERRSTS + 1, 7);
142 : 0 : return 0;
143 : : }
144 : :
145 : 0 : static int intel_815_configure(void)
146 : : {
147 : 0 : u32 addr;
148 : 0 : u8 temp2;
149 : 0 : struct aper_size_info_8 *current_size;
150 : :
151 : : /* attbase - aperture base */
152 : : /* the Intel 815 chipset spec. says that bits 29-31 in the
153 : : * ATTBASE register are reserved -> try not to write them */
154 [ # # ]: 0 : if (agp_bridge->gatt_bus_addr & INTEL_815_ATTBASE_MASK) {
155 : 0 : dev_emerg(&agp_bridge->dev->dev, "gatt bus addr too high");
156 : 0 : return -EINVAL;
157 : : }
158 : :
159 : 0 : current_size = A_SIZE_8(agp_bridge->current_size);
160 : :
161 : : /* aperture size */
162 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE,
163 : 0 : current_size->size_value);
164 : :
165 : : /* address to map to */
166 : 0 : agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,
167 : : AGP_APERTURE_BAR);
168 : :
169 : 0 : pci_read_config_dword(agp_bridge->dev, INTEL_ATTBASE, &addr);
170 : 0 : addr &= INTEL_815_ATTBASE_MASK;
171 : 0 : addr |= agp_bridge->gatt_bus_addr;
172 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, addr);
173 : :
174 : : /* agpctrl */
175 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
176 : :
177 : : /* apcont */
178 : 0 : pci_read_config_byte(agp_bridge->dev, INTEL_815_APCONT, &temp2);
179 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_815_APCONT, temp2 | (1 << 1));
180 : :
181 : : /* clear any possible error conditions */
182 : : /* Oddness : this chipset seems to have no ERRSTS register ! */
183 : 0 : return 0;
184 : : }
185 : :
186 : 0 : static void intel_820_tlbflush(struct agp_memory *mem)
187 : : {
188 : 0 : return;
189 : : }
190 : :
191 : 0 : static void intel_820_cleanup(void)
192 : : {
193 : 0 : u8 temp;
194 : 0 : struct aper_size_info_8 *previous_size;
195 : :
196 : 0 : previous_size = A_SIZE_8(agp_bridge->previous_size);
197 : 0 : pci_read_config_byte(agp_bridge->dev, INTEL_I820_RDCR, &temp);
198 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_I820_RDCR,
199 : 0 : temp & ~(1 << 1));
200 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE,
201 : 0 : previous_size->size_value);
202 : 0 : }
203 : :
204 : :
205 : 0 : static int intel_820_configure(void)
206 : : {
207 : 0 : u8 temp2;
208 : 0 : struct aper_size_info_8 *current_size;
209 : :
210 : 0 : current_size = A_SIZE_8(agp_bridge->current_size);
211 : :
212 : : /* aperture size */
213 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
214 : :
215 : : /* address to map to */
216 : 0 : agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,
217 : : AGP_APERTURE_BAR);
218 : :
219 : : /* attbase - aperture base */
220 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
221 : :
222 : : /* agpctrl */
223 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
224 : :
225 : : /* global enable aperture access */
226 : : /* This flag is not accessed through MCHCFG register as in */
227 : : /* i850 chipset. */
228 : 0 : pci_read_config_byte(agp_bridge->dev, INTEL_I820_RDCR, &temp2);
229 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_I820_RDCR, temp2 | (1 << 1));
230 : : /* clear any possible AGP-related error conditions */
231 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_I820_ERRSTS, 0x001c);
232 : 0 : return 0;
233 : : }
234 : :
235 : 0 : static int intel_840_configure(void)
236 : : {
237 : 0 : u16 temp2;
238 : 0 : struct aper_size_info_8 *current_size;
239 : :
240 : 0 : current_size = A_SIZE_8(agp_bridge->current_size);
241 : :
242 : : /* aperture size */
243 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
244 : :
245 : : /* address to map to */
246 : 0 : agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,
247 : : AGP_APERTURE_BAR);
248 : :
249 : : /* attbase - aperture base */
250 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
251 : :
252 : : /* agpctrl */
253 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
254 : :
255 : : /* mcgcfg */
256 : 0 : pci_read_config_word(agp_bridge->dev, INTEL_I840_MCHCFG, &temp2);
257 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_I840_MCHCFG, temp2 | (1 << 9));
258 : : /* clear any possible error conditions */
259 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_I840_ERRSTS, 0xc000);
260 : 0 : return 0;
261 : : }
262 : :
263 : 0 : static int intel_845_configure(void)
264 : : {
265 : 0 : u8 temp2;
266 : 0 : struct aper_size_info_8 *current_size;
267 : :
268 : 0 : current_size = A_SIZE_8(agp_bridge->current_size);
269 : :
270 : : /* aperture size */
271 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
272 : :
273 [ # # ]: 0 : if (agp_bridge->apbase_config != 0) {
274 : 0 : pci_write_config_dword(agp_bridge->dev, AGP_APBASE,
275 : : agp_bridge->apbase_config);
276 : : } else {
277 : : /* address to map to */
278 : 0 : agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,
279 : : AGP_APERTURE_BAR);
280 : 0 : agp_bridge->apbase_config = agp_bridge->gart_bus_addr;
281 : : }
282 : :
283 : : /* attbase - aperture base */
284 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
285 : :
286 : : /* agpctrl */
287 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
288 : :
289 : : /* agpm */
290 : 0 : pci_read_config_byte(agp_bridge->dev, INTEL_I845_AGPM, &temp2);
291 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_I845_AGPM, temp2 | (1 << 1));
292 : : /* clear any possible error conditions */
293 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_I845_ERRSTS, 0x001c);
294 : 0 : return 0;
295 : : }
296 : :
297 : 0 : static int intel_850_configure(void)
298 : : {
299 : 0 : u16 temp2;
300 : 0 : struct aper_size_info_8 *current_size;
301 : :
302 : 0 : current_size = A_SIZE_8(agp_bridge->current_size);
303 : :
304 : : /* aperture size */
305 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
306 : :
307 : : /* address to map to */
308 : 0 : agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,
309 : : AGP_APERTURE_BAR);
310 : :
311 : : /* attbase - aperture base */
312 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
313 : :
314 : : /* agpctrl */
315 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
316 : :
317 : : /* mcgcfg */
318 : 0 : pci_read_config_word(agp_bridge->dev, INTEL_I850_MCHCFG, &temp2);
319 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_I850_MCHCFG, temp2 | (1 << 9));
320 : : /* clear any possible AGP-related error conditions */
321 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_I850_ERRSTS, 0x001c);
322 : 0 : return 0;
323 : : }
324 : :
325 : 0 : static int intel_860_configure(void)
326 : : {
327 : 0 : u16 temp2;
328 : 0 : struct aper_size_info_8 *current_size;
329 : :
330 : 0 : current_size = A_SIZE_8(agp_bridge->current_size);
331 : :
332 : : /* aperture size */
333 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
334 : :
335 : : /* address to map to */
336 : 0 : agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,
337 : : AGP_APERTURE_BAR);
338 : :
339 : : /* attbase - aperture base */
340 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
341 : :
342 : : /* agpctrl */
343 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
344 : :
345 : : /* mcgcfg */
346 : 0 : pci_read_config_word(agp_bridge->dev, INTEL_I860_MCHCFG, &temp2);
347 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_I860_MCHCFG, temp2 | (1 << 9));
348 : : /* clear any possible AGP-related error conditions */
349 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_I860_ERRSTS, 0xf700);
350 : 0 : return 0;
351 : : }
352 : :
353 : 0 : static int intel_830mp_configure(void)
354 : : {
355 : 0 : u16 temp2;
356 : 0 : struct aper_size_info_8 *current_size;
357 : :
358 : 0 : current_size = A_SIZE_8(agp_bridge->current_size);
359 : :
360 : : /* aperture size */
361 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
362 : :
363 : : /* address to map to */
364 : 0 : agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,
365 : : AGP_APERTURE_BAR);
366 : :
367 : : /* attbase - aperture base */
368 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
369 : :
370 : : /* agpctrl */
371 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
372 : :
373 : : /* gmch */
374 : 0 : pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp2);
375 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG, temp2 | (1 << 9));
376 : : /* clear any possible AGP-related error conditions */
377 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_I830_ERRSTS, 0x1c);
378 : 0 : return 0;
379 : : }
380 : :
381 : 0 : static int intel_7505_configure(void)
382 : : {
383 : 0 : u16 temp2;
384 : 0 : struct aper_size_info_8 *current_size;
385 : :
386 : 0 : current_size = A_SIZE_8(agp_bridge->current_size);
387 : :
388 : : /* aperture size */
389 : 0 : pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
390 : :
391 : : /* address to map to */
392 : 0 : agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,
393 : : AGP_APERTURE_BAR);
394 : :
395 : : /* attbase - aperture base */
396 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
397 : :
398 : : /* agpctrl */
399 : 0 : pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
400 : :
401 : : /* mchcfg */
402 : 0 : pci_read_config_word(agp_bridge->dev, INTEL_I7505_MCHCFG, &temp2);
403 : 0 : pci_write_config_word(agp_bridge->dev, INTEL_I7505_MCHCFG, temp2 | (1 << 9));
404 : :
405 : 0 : return 0;
406 : : }
407 : :
408 : : /* Setup function */
409 : : static const struct gatt_mask intel_generic_masks[] =
410 : : {
411 : : {.mask = 0x00000017, .type = 0}
412 : : };
413 : :
414 : : static const struct aper_size_info_8 intel_815_sizes[2] =
415 : : {
416 : : {64, 16384, 4, 0},
417 : : {32, 8192, 3, 8},
418 : : };
419 : :
420 : : static const struct aper_size_info_8 intel_8xx_sizes[7] =
421 : : {
422 : : {256, 65536, 6, 0},
423 : : {128, 32768, 5, 32},
424 : : {64, 16384, 4, 48},
425 : : {32, 8192, 3, 56},
426 : : {16, 4096, 2, 60},
427 : : {8, 2048, 1, 62},
428 : : {4, 1024, 0, 63}
429 : : };
430 : :
431 : : static const struct aper_size_info_16 intel_generic_sizes[7] =
432 : : {
433 : : {256, 65536, 6, 0},
434 : : {128, 32768, 5, 32},
435 : : {64, 16384, 4, 48},
436 : : {32, 8192, 3, 56},
437 : : {16, 4096, 2, 60},
438 : : {8, 2048, 1, 62},
439 : : {4, 1024, 0, 63}
440 : : };
441 : :
442 : : static const struct aper_size_info_8 intel_830mp_sizes[4] =
443 : : {
444 : : {256, 65536, 6, 0},
445 : : {128, 32768, 5, 32},
446 : : {64, 16384, 4, 48},
447 : : {32, 8192, 3, 56}
448 : : };
449 : :
450 : : static const struct agp_bridge_driver intel_generic_driver = {
451 : : .owner = THIS_MODULE,
452 : : .aperture_sizes = intel_generic_sizes,
453 : : .size_type = U16_APER_SIZE,
454 : : .num_aperture_sizes = 7,
455 : : .needs_scratch_page = true,
456 : : .configure = intel_configure,
457 : : .fetch_size = intel_fetch_size,
458 : : .cleanup = intel_cleanup,
459 : : .tlb_flush = intel_tlbflush,
460 : : .mask_memory = agp_generic_mask_memory,
461 : : .masks = intel_generic_masks,
462 : : .agp_enable = agp_generic_enable,
463 : : .cache_flush = global_cache_flush,
464 : : .create_gatt_table = agp_generic_create_gatt_table,
465 : : .free_gatt_table = agp_generic_free_gatt_table,
466 : : .insert_memory = agp_generic_insert_memory,
467 : : .remove_memory = agp_generic_remove_memory,
468 : : .alloc_by_type = agp_generic_alloc_by_type,
469 : : .free_by_type = agp_generic_free_by_type,
470 : : .agp_alloc_page = agp_generic_alloc_page,
471 : : .agp_alloc_pages = agp_generic_alloc_pages,
472 : : .agp_destroy_page = agp_generic_destroy_page,
473 : : .agp_destroy_pages = agp_generic_destroy_pages,
474 : : .agp_type_to_mask_type = agp_generic_type_to_mask_type,
475 : : };
476 : :
477 : : static const struct agp_bridge_driver intel_815_driver = {
478 : : .owner = THIS_MODULE,
479 : : .aperture_sizes = intel_815_sizes,
480 : : .size_type = U8_APER_SIZE,
481 : : .num_aperture_sizes = 2,
482 : : .needs_scratch_page = true,
483 : : .configure = intel_815_configure,
484 : : .fetch_size = intel_815_fetch_size,
485 : : .cleanup = intel_8xx_cleanup,
486 : : .tlb_flush = intel_8xx_tlbflush,
487 : : .mask_memory = agp_generic_mask_memory,
488 : : .masks = intel_generic_masks,
489 : : .agp_enable = agp_generic_enable,
490 : : .cache_flush = global_cache_flush,
491 : : .create_gatt_table = agp_generic_create_gatt_table,
492 : : .free_gatt_table = agp_generic_free_gatt_table,
493 : : .insert_memory = agp_generic_insert_memory,
494 : : .remove_memory = agp_generic_remove_memory,
495 : : .alloc_by_type = agp_generic_alloc_by_type,
496 : : .free_by_type = agp_generic_free_by_type,
497 : : .agp_alloc_page = agp_generic_alloc_page,
498 : : .agp_alloc_pages = agp_generic_alloc_pages,
499 : : .agp_destroy_page = agp_generic_destroy_page,
500 : : .agp_destroy_pages = agp_generic_destroy_pages,
501 : : .agp_type_to_mask_type = agp_generic_type_to_mask_type,
502 : : };
503 : :
504 : : static const struct agp_bridge_driver intel_820_driver = {
505 : : .owner = THIS_MODULE,
506 : : .aperture_sizes = intel_8xx_sizes,
507 : : .size_type = U8_APER_SIZE,
508 : : .num_aperture_sizes = 7,
509 : : .needs_scratch_page = true,
510 : : .configure = intel_820_configure,
511 : : .fetch_size = intel_8xx_fetch_size,
512 : : .cleanup = intel_820_cleanup,
513 : : .tlb_flush = intel_820_tlbflush,
514 : : .mask_memory = agp_generic_mask_memory,
515 : : .masks = intel_generic_masks,
516 : : .agp_enable = agp_generic_enable,
517 : : .cache_flush = global_cache_flush,
518 : : .create_gatt_table = agp_generic_create_gatt_table,
519 : : .free_gatt_table = agp_generic_free_gatt_table,
520 : : .insert_memory = agp_generic_insert_memory,
521 : : .remove_memory = agp_generic_remove_memory,
522 : : .alloc_by_type = agp_generic_alloc_by_type,
523 : : .free_by_type = agp_generic_free_by_type,
524 : : .agp_alloc_page = agp_generic_alloc_page,
525 : : .agp_alloc_pages = agp_generic_alloc_pages,
526 : : .agp_destroy_page = agp_generic_destroy_page,
527 : : .agp_destroy_pages = agp_generic_destroy_pages,
528 : : .agp_type_to_mask_type = agp_generic_type_to_mask_type,
529 : : };
530 : :
531 : : static const struct agp_bridge_driver intel_830mp_driver = {
532 : : .owner = THIS_MODULE,
533 : : .aperture_sizes = intel_830mp_sizes,
534 : : .size_type = U8_APER_SIZE,
535 : : .num_aperture_sizes = 4,
536 : : .needs_scratch_page = true,
537 : : .configure = intel_830mp_configure,
538 : : .fetch_size = intel_8xx_fetch_size,
539 : : .cleanup = intel_8xx_cleanup,
540 : : .tlb_flush = intel_8xx_tlbflush,
541 : : .mask_memory = agp_generic_mask_memory,
542 : : .masks = intel_generic_masks,
543 : : .agp_enable = agp_generic_enable,
544 : : .cache_flush = global_cache_flush,
545 : : .create_gatt_table = agp_generic_create_gatt_table,
546 : : .free_gatt_table = agp_generic_free_gatt_table,
547 : : .insert_memory = agp_generic_insert_memory,
548 : : .remove_memory = agp_generic_remove_memory,
549 : : .alloc_by_type = agp_generic_alloc_by_type,
550 : : .free_by_type = agp_generic_free_by_type,
551 : : .agp_alloc_page = agp_generic_alloc_page,
552 : : .agp_alloc_pages = agp_generic_alloc_pages,
553 : : .agp_destroy_page = agp_generic_destroy_page,
554 : : .agp_destroy_pages = agp_generic_destroy_pages,
555 : : .agp_type_to_mask_type = agp_generic_type_to_mask_type,
556 : : };
557 : :
558 : : static const struct agp_bridge_driver intel_840_driver = {
559 : : .owner = THIS_MODULE,
560 : : .aperture_sizes = intel_8xx_sizes,
561 : : .size_type = U8_APER_SIZE,
562 : : .num_aperture_sizes = 7,
563 : : .needs_scratch_page = true,
564 : : .configure = intel_840_configure,
565 : : .fetch_size = intel_8xx_fetch_size,
566 : : .cleanup = intel_8xx_cleanup,
567 : : .tlb_flush = intel_8xx_tlbflush,
568 : : .mask_memory = agp_generic_mask_memory,
569 : : .masks = intel_generic_masks,
570 : : .agp_enable = agp_generic_enable,
571 : : .cache_flush = global_cache_flush,
572 : : .create_gatt_table = agp_generic_create_gatt_table,
573 : : .free_gatt_table = agp_generic_free_gatt_table,
574 : : .insert_memory = agp_generic_insert_memory,
575 : : .remove_memory = agp_generic_remove_memory,
576 : : .alloc_by_type = agp_generic_alloc_by_type,
577 : : .free_by_type = agp_generic_free_by_type,
578 : : .agp_alloc_page = agp_generic_alloc_page,
579 : : .agp_alloc_pages = agp_generic_alloc_pages,
580 : : .agp_destroy_page = agp_generic_destroy_page,
581 : : .agp_destroy_pages = agp_generic_destroy_pages,
582 : : .agp_type_to_mask_type = agp_generic_type_to_mask_type,
583 : : };
584 : :
585 : : static const struct agp_bridge_driver intel_845_driver = {
586 : : .owner = THIS_MODULE,
587 : : .aperture_sizes = intel_8xx_sizes,
588 : : .size_type = U8_APER_SIZE,
589 : : .num_aperture_sizes = 7,
590 : : .needs_scratch_page = true,
591 : : .configure = intel_845_configure,
592 : : .fetch_size = intel_8xx_fetch_size,
593 : : .cleanup = intel_8xx_cleanup,
594 : : .tlb_flush = intel_8xx_tlbflush,
595 : : .mask_memory = agp_generic_mask_memory,
596 : : .masks = intel_generic_masks,
597 : : .agp_enable = agp_generic_enable,
598 : : .cache_flush = global_cache_flush,
599 : : .create_gatt_table = agp_generic_create_gatt_table,
600 : : .free_gatt_table = agp_generic_free_gatt_table,
601 : : .insert_memory = agp_generic_insert_memory,
602 : : .remove_memory = agp_generic_remove_memory,
603 : : .alloc_by_type = agp_generic_alloc_by_type,
604 : : .free_by_type = agp_generic_free_by_type,
605 : : .agp_alloc_page = agp_generic_alloc_page,
606 : : .agp_alloc_pages = agp_generic_alloc_pages,
607 : : .agp_destroy_page = agp_generic_destroy_page,
608 : : .agp_destroy_pages = agp_generic_destroy_pages,
609 : : .agp_type_to_mask_type = agp_generic_type_to_mask_type,
610 : : };
611 : :
612 : : static const struct agp_bridge_driver intel_850_driver = {
613 : : .owner = THIS_MODULE,
614 : : .aperture_sizes = intel_8xx_sizes,
615 : : .size_type = U8_APER_SIZE,
616 : : .num_aperture_sizes = 7,
617 : : .needs_scratch_page = true,
618 : : .configure = intel_850_configure,
619 : : .fetch_size = intel_8xx_fetch_size,
620 : : .cleanup = intel_8xx_cleanup,
621 : : .tlb_flush = intel_8xx_tlbflush,
622 : : .mask_memory = agp_generic_mask_memory,
623 : : .masks = intel_generic_masks,
624 : : .agp_enable = agp_generic_enable,
625 : : .cache_flush = global_cache_flush,
626 : : .create_gatt_table = agp_generic_create_gatt_table,
627 : : .free_gatt_table = agp_generic_free_gatt_table,
628 : : .insert_memory = agp_generic_insert_memory,
629 : : .remove_memory = agp_generic_remove_memory,
630 : : .alloc_by_type = agp_generic_alloc_by_type,
631 : : .free_by_type = agp_generic_free_by_type,
632 : : .agp_alloc_page = agp_generic_alloc_page,
633 : : .agp_alloc_pages = agp_generic_alloc_pages,
634 : : .agp_destroy_page = agp_generic_destroy_page,
635 : : .agp_destroy_pages = agp_generic_destroy_pages,
636 : : .agp_type_to_mask_type = agp_generic_type_to_mask_type,
637 : : };
638 : :
639 : : static const struct agp_bridge_driver intel_860_driver = {
640 : : .owner = THIS_MODULE,
641 : : .aperture_sizes = intel_8xx_sizes,
642 : : .size_type = U8_APER_SIZE,
643 : : .num_aperture_sizes = 7,
644 : : .needs_scratch_page = true,
645 : : .configure = intel_860_configure,
646 : : .fetch_size = intel_8xx_fetch_size,
647 : : .cleanup = intel_8xx_cleanup,
648 : : .tlb_flush = intel_8xx_tlbflush,
649 : : .mask_memory = agp_generic_mask_memory,
650 : : .masks = intel_generic_masks,
651 : : .agp_enable = agp_generic_enable,
652 : : .cache_flush = global_cache_flush,
653 : : .create_gatt_table = agp_generic_create_gatt_table,
654 : : .free_gatt_table = agp_generic_free_gatt_table,
655 : : .insert_memory = agp_generic_insert_memory,
656 : : .remove_memory = agp_generic_remove_memory,
657 : : .alloc_by_type = agp_generic_alloc_by_type,
658 : : .free_by_type = agp_generic_free_by_type,
659 : : .agp_alloc_page = agp_generic_alloc_page,
660 : : .agp_alloc_pages = agp_generic_alloc_pages,
661 : : .agp_destroy_page = agp_generic_destroy_page,
662 : : .agp_destroy_pages = agp_generic_destroy_pages,
663 : : .agp_type_to_mask_type = agp_generic_type_to_mask_type,
664 : : };
665 : :
666 : : static const struct agp_bridge_driver intel_7505_driver = {
667 : : .owner = THIS_MODULE,
668 : : .aperture_sizes = intel_8xx_sizes,
669 : : .size_type = U8_APER_SIZE,
670 : : .num_aperture_sizes = 7,
671 : : .needs_scratch_page = true,
672 : : .configure = intel_7505_configure,
673 : : .fetch_size = intel_8xx_fetch_size,
674 : : .cleanup = intel_8xx_cleanup,
675 : : .tlb_flush = intel_8xx_tlbflush,
676 : : .mask_memory = agp_generic_mask_memory,
677 : : .masks = intel_generic_masks,
678 : : .agp_enable = agp_generic_enable,
679 : : .cache_flush = global_cache_flush,
680 : : .create_gatt_table = agp_generic_create_gatt_table,
681 : : .free_gatt_table = agp_generic_free_gatt_table,
682 : : .insert_memory = agp_generic_insert_memory,
683 : : .remove_memory = agp_generic_remove_memory,
684 : : .alloc_by_type = agp_generic_alloc_by_type,
685 : : .free_by_type = agp_generic_free_by_type,
686 : : .agp_alloc_page = agp_generic_alloc_page,
687 : : .agp_alloc_pages = agp_generic_alloc_pages,
688 : : .agp_destroy_page = agp_generic_destroy_page,
689 : : .agp_destroy_pages = agp_generic_destroy_pages,
690 : : .agp_type_to_mask_type = agp_generic_type_to_mask_type,
691 : : };
692 : :
693 : : /* Table to describe Intel GMCH and AGP/PCIE GART drivers. At least one of
694 : : * driver and gmch_driver must be non-null, and find_gmch will determine
695 : : * which one should be used if a gmch_chip_id is present.
696 : : */
697 : : static const struct intel_agp_driver_description {
698 : : unsigned int chip_id;
699 : : char *name;
700 : : const struct agp_bridge_driver *driver;
701 : : } intel_agp_chipsets[] = {
702 : : { PCI_DEVICE_ID_INTEL_82443LX_0, "440LX", &intel_generic_driver },
703 : : { PCI_DEVICE_ID_INTEL_82443BX_0, "440BX", &intel_generic_driver },
704 : : { PCI_DEVICE_ID_INTEL_82443GX_0, "440GX", &intel_generic_driver },
705 : : { PCI_DEVICE_ID_INTEL_82815_MC, "i815", &intel_815_driver },
706 : : { PCI_DEVICE_ID_INTEL_82820_HB, "i820", &intel_820_driver },
707 : : { PCI_DEVICE_ID_INTEL_82820_UP_HB, "i820", &intel_820_driver },
708 : : { PCI_DEVICE_ID_INTEL_82830_HB, "830M", &intel_830mp_driver },
709 : : { PCI_DEVICE_ID_INTEL_82840_HB, "i840", &intel_840_driver },
710 : : { PCI_DEVICE_ID_INTEL_82845_HB, "i845", &intel_845_driver },
711 : : { PCI_DEVICE_ID_INTEL_82845G_HB, "845G", &intel_845_driver },
712 : : { PCI_DEVICE_ID_INTEL_82850_HB, "i850", &intel_850_driver },
713 : : { PCI_DEVICE_ID_INTEL_82854_HB, "854", &intel_845_driver },
714 : : { PCI_DEVICE_ID_INTEL_82855PM_HB, "855PM", &intel_845_driver },
715 : : { PCI_DEVICE_ID_INTEL_82855GM_HB, "855GM", &intel_845_driver },
716 : : { PCI_DEVICE_ID_INTEL_82860_HB, "i860", &intel_860_driver },
717 : : { PCI_DEVICE_ID_INTEL_82865_HB, "865", &intel_845_driver },
718 : : { PCI_DEVICE_ID_INTEL_82875_HB, "i875", &intel_845_driver },
719 : : { PCI_DEVICE_ID_INTEL_7505_0, "E7505", &intel_7505_driver },
720 : : { PCI_DEVICE_ID_INTEL_7205_0, "E7205", &intel_7505_driver },
721 : : { 0, NULL, NULL }
722 : : };
723 : :
724 : 30 : static int agp_intel_probe(struct pci_dev *pdev,
725 : : const struct pci_device_id *ent)
726 : : {
727 : 30 : struct agp_bridge_data *bridge;
728 : 30 : u8 cap_ptr = 0;
729 : 30 : struct resource *r;
730 : 30 : int i, err;
731 : :
732 : 30 : cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP);
733 : :
734 : 30 : bridge = agp_alloc_bridge();
735 [ + - ]: 30 : if (!bridge)
736 : : return -ENOMEM;
737 : :
738 : 30 : bridge->capndx = cap_ptr;
739 : :
740 [ - + ]: 30 : if (intel_gmch_probe(pdev, NULL, bridge))
741 : 0 : goto found_gmch;
742 : :
743 [ + + ]: 600 : for (i = 0; intel_agp_chipsets[i].name != NULL; i++) {
744 : : /* In case that multiple models of gfx chip may
745 : : stand on same host bridge type, this can be
746 : : sure we detect the right IGD. */
747 [ - + ]: 570 : if (pdev->device == intel_agp_chipsets[i].chip_id) {
748 : 0 : bridge->driver = intel_agp_chipsets[i].driver;
749 : 0 : break;
750 : : }
751 : : }
752 : :
753 [ + - ]: 30 : if (!bridge->driver) {
754 [ - + ]: 30 : if (cap_ptr)
755 : 0 : dev_warn(&pdev->dev, "unsupported Intel chipset [%04x/%04x]\n",
756 : : pdev->vendor, pdev->device);
757 : 30 : agp_put_bridge(bridge);
758 : 30 : return -ENODEV;
759 : : }
760 : :
761 : 0 : bridge->dev = pdev;
762 : 0 : bridge->dev_private_data = NULL;
763 : :
764 : 0 : dev_info(&pdev->dev, "Intel %s Chipset\n", intel_agp_chipsets[i].name);
765 : :
766 : : /*
767 : : * The following fixes the case where the BIOS has "forgotten" to
768 : : * provide an address range for the GART.
769 : : * 20030610 - hamish@zot.org
770 : : * This happens before pci_enable_device() intentionally;
771 : : * calling pci_enable_device() before assigning the resource
772 : : * will result in the GART being disabled on machines with such
773 : : * BIOSs (the GART ends up with a BAR starting at 0, which
774 : : * conflicts a lot of other devices).
775 : : */
776 : 0 : r = &pdev->resource[0];
777 [ # # # # ]: 0 : if (!r->start && r->end) {
778 [ # # ]: 0 : if (pci_assign_resource(pdev, 0)) {
779 : 0 : dev_err(&pdev->dev, "can't assign resource 0\n");
780 : 0 : agp_put_bridge(bridge);
781 : 0 : return -ENODEV;
782 : : }
783 : : }
784 : :
785 : : /*
786 : : * If the device has not been properly setup, the following will catch
787 : : * the problem and should stop the system from crashing.
788 : : * 20030610 - hamish@zot.org
789 : : */
790 [ # # ]: 0 : if (pci_enable_device(pdev)) {
791 : 0 : dev_err(&pdev->dev, "can't enable PCI device\n");
792 : 0 : agp_put_bridge(bridge);
793 : 0 : return -ENODEV;
794 : : }
795 : :
796 : : /* Fill in the mode register */
797 [ # # ]: 0 : if (cap_ptr) {
798 : 0 : pci_read_config_dword(pdev,
799 : 0 : bridge->capndx+PCI_AGP_STATUS,
800 : : &bridge->mode);
801 : : }
802 : :
803 : 0 : found_gmch:
804 : 0 : pci_set_drvdata(pdev, bridge);
805 : 0 : err = agp_add_bridge(bridge);
806 : 0 : return err;
807 : : }
808 : :
809 : 0 : static void agp_intel_remove(struct pci_dev *pdev)
810 : : {
811 : 0 : struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
812 : :
813 : 0 : agp_remove_bridge(bridge);
814 : :
815 : 0 : intel_gmch_remove();
816 : :
817 : 0 : agp_put_bridge(bridge);
818 : 0 : }
819 : :
820 : : #ifdef CONFIG_PM
821 : 0 : static int agp_intel_resume(struct pci_dev *pdev)
822 : : {
823 : 0 : struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
824 : :
825 : 0 : bridge->driver->configure();
826 : :
827 : 0 : return 0;
828 : : }
829 : : #endif
830 : :
831 : : static const struct pci_device_id agp_intel_pci_table[] = {
832 : : #define ID(x) \
833 : : { \
834 : : .class = (PCI_CLASS_BRIDGE_HOST << 8), \
835 : : .class_mask = ~0, \
836 : : .vendor = PCI_VENDOR_ID_INTEL, \
837 : : .device = x, \
838 : : .subvendor = PCI_ANY_ID, \
839 : : .subdevice = PCI_ANY_ID, \
840 : : }
841 : : ID(PCI_DEVICE_ID_INTEL_82441), /* for HAS2 support */
842 : : ID(PCI_DEVICE_ID_INTEL_82443LX_0),
843 : : ID(PCI_DEVICE_ID_INTEL_82443BX_0),
844 : : ID(PCI_DEVICE_ID_INTEL_82443GX_0),
845 : : ID(PCI_DEVICE_ID_INTEL_82810_MC1),
846 : : ID(PCI_DEVICE_ID_INTEL_82810_MC3),
847 : : ID(PCI_DEVICE_ID_INTEL_82810E_MC),
848 : : ID(PCI_DEVICE_ID_INTEL_82815_MC),
849 : : ID(PCI_DEVICE_ID_INTEL_82820_HB),
850 : : ID(PCI_DEVICE_ID_INTEL_82820_UP_HB),
851 : : ID(PCI_DEVICE_ID_INTEL_82830_HB),
852 : : ID(PCI_DEVICE_ID_INTEL_82840_HB),
853 : : ID(PCI_DEVICE_ID_INTEL_82845_HB),
854 : : ID(PCI_DEVICE_ID_INTEL_82845G_HB),
855 : : ID(PCI_DEVICE_ID_INTEL_82850_HB),
856 : : ID(PCI_DEVICE_ID_INTEL_82854_HB),
857 : : ID(PCI_DEVICE_ID_INTEL_82855PM_HB),
858 : : ID(PCI_DEVICE_ID_INTEL_82855GM_HB),
859 : : ID(PCI_DEVICE_ID_INTEL_82860_HB),
860 : : ID(PCI_DEVICE_ID_INTEL_82865_HB),
861 : : ID(PCI_DEVICE_ID_INTEL_82875_HB),
862 : : ID(PCI_DEVICE_ID_INTEL_7505_0),
863 : : ID(PCI_DEVICE_ID_INTEL_7205_0),
864 : : ID(PCI_DEVICE_ID_INTEL_E7221_HB),
865 : : ID(PCI_DEVICE_ID_INTEL_82915G_HB),
866 : : ID(PCI_DEVICE_ID_INTEL_82915GM_HB),
867 : : ID(PCI_DEVICE_ID_INTEL_82945G_HB),
868 : : ID(PCI_DEVICE_ID_INTEL_82945GM_HB),
869 : : ID(PCI_DEVICE_ID_INTEL_82945GME_HB),
870 : : ID(PCI_DEVICE_ID_INTEL_PINEVIEW_M_HB),
871 : : ID(PCI_DEVICE_ID_INTEL_PINEVIEW_HB),
872 : : ID(PCI_DEVICE_ID_INTEL_82946GZ_HB),
873 : : ID(PCI_DEVICE_ID_INTEL_82G35_HB),
874 : : ID(PCI_DEVICE_ID_INTEL_82965Q_HB),
875 : : ID(PCI_DEVICE_ID_INTEL_82965G_HB),
876 : : ID(PCI_DEVICE_ID_INTEL_82965GM_HB),
877 : : ID(PCI_DEVICE_ID_INTEL_82965GME_HB),
878 : : ID(PCI_DEVICE_ID_INTEL_G33_HB),
879 : : ID(PCI_DEVICE_ID_INTEL_Q35_HB),
880 : : ID(PCI_DEVICE_ID_INTEL_Q33_HB),
881 : : ID(PCI_DEVICE_ID_INTEL_GM45_HB),
882 : : ID(PCI_DEVICE_ID_INTEL_EAGLELAKE_HB),
883 : : ID(PCI_DEVICE_ID_INTEL_Q45_HB),
884 : : ID(PCI_DEVICE_ID_INTEL_G45_HB),
885 : : ID(PCI_DEVICE_ID_INTEL_G41_HB),
886 : : ID(PCI_DEVICE_ID_INTEL_B43_HB),
887 : : ID(PCI_DEVICE_ID_INTEL_B43_1_HB),
888 : : ID(PCI_DEVICE_ID_INTEL_IRONLAKE_D_HB),
889 : : ID(PCI_DEVICE_ID_INTEL_IRONLAKE_D2_HB),
890 : : ID(PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB),
891 : : ID(PCI_DEVICE_ID_INTEL_IRONLAKE_MA_HB),
892 : : ID(PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB),
893 : : { }
894 : : };
895 : :
896 : : MODULE_DEVICE_TABLE(pci, agp_intel_pci_table);
897 : :
898 : : static struct pci_driver agp_intel_pci_driver = {
899 : : .name = "agpgart-intel",
900 : : .id_table = agp_intel_pci_table,
901 : : .probe = agp_intel_probe,
902 : : .remove = agp_intel_remove,
903 : : #ifdef CONFIG_PM
904 : : .resume = agp_intel_resume,
905 : : #endif
906 : : };
907 : :
908 : 30 : static int __init agp_intel_init(void)
909 : : {
910 [ + - ]: 30 : if (agp_off)
911 : : return -EINVAL;
912 : 30 : return pci_register_driver(&agp_intel_pci_driver);
913 : : }
914 : :
915 : 0 : static void __exit agp_intel_cleanup(void)
916 : : {
917 : 0 : pci_unregister_driver(&agp_intel_pci_driver);
918 : 0 : }
919 : :
920 : : module_init(agp_intel_init);
921 : : module_exit(agp_intel_cleanup);
922 : :
923 : : MODULE_AUTHOR("Dave Jones, Various @Intel");
924 : : MODULE_LICENSE("GPL and additional rights");
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