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pktcdvd: remove broken dev_t export of class devices
[linux-2.6/zen-sources.git] / drivers / char / agp / intel-agp.c
blob9cf6e9bb017e6dca0b537bb04b70e5c49dbf705b
1 /*
2 * Intel AGPGART routines.
3 */
4
5 #include <linux/module.h>
6 #include <linux/pci.h>
7 #include <linux/init.h>
8 #include <linux/kernel.h>
9 #include <linux/pagemap.h>
10 #include <linux/agp_backend.h>
11 #include "agp.h"
12
13 #define PCI_DEVICE_ID_INTEL_E7221_HB 0x2588
14 #define PCI_DEVICE_ID_INTEL_E7221_IG 0x258a
15 #define PCI_DEVICE_ID_INTEL_82946GZ_HB 0x2970
16 #define PCI_DEVICE_ID_INTEL_82946GZ_IG 0x2972
17 #define PCI_DEVICE_ID_INTEL_82G35_HB 0x2980
18 #define PCI_DEVICE_ID_INTEL_82G35_IG 0x2982
19 #define PCI_DEVICE_ID_INTEL_82965Q_HB 0x2990
20 #define PCI_DEVICE_ID_INTEL_82965Q_IG 0x2992
21 #define PCI_DEVICE_ID_INTEL_82965G_HB 0x29A0
22 #define PCI_DEVICE_ID_INTEL_82965G_IG 0x29A2
23 #define PCI_DEVICE_ID_INTEL_82965GM_HB 0x2A00
24 #define PCI_DEVICE_ID_INTEL_82965GM_IG 0x2A02
25 #define PCI_DEVICE_ID_INTEL_82965GME_HB 0x2A10
26 #define PCI_DEVICE_ID_INTEL_82965GME_IG 0x2A12
27 #define PCI_DEVICE_ID_INTEL_82945GME_HB 0x27AC
28 #define PCI_DEVICE_ID_INTEL_82945GME_IG 0x27AE
29 #define PCI_DEVICE_ID_INTEL_G33_HB 0x29C0
30 #define PCI_DEVICE_ID_INTEL_G33_IG 0x29C2
31 #define PCI_DEVICE_ID_INTEL_Q35_HB 0x29B0
32 #define PCI_DEVICE_ID_INTEL_Q35_IG 0x29B2
33 #define PCI_DEVICE_ID_INTEL_Q33_HB 0x29D0
34 #define PCI_DEVICE_ID_INTEL_Q33_IG 0x29D2
35 #define PCI_DEVICE_ID_INTEL_GM45_HB 0x2A40
36 #define PCI_DEVICE_ID_INTEL_GM45_IG 0x2A42
37 #define PCI_DEVICE_ID_INTEL_IGD_E_HB 0x2E00
38 #define PCI_DEVICE_ID_INTEL_IGD_E_IG 0x2E02
39 #define PCI_DEVICE_ID_INTEL_Q45_HB 0x2E10
40 #define PCI_DEVICE_ID_INTEL_Q45_IG 0x2E12
41 #define PCI_DEVICE_ID_INTEL_G45_HB 0x2E20
42 #define PCI_DEVICE_ID_INTEL_G45_IG 0x2E22
43
44 /* cover 915 and 945 variants */
45 #define IS_I915 (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_E7221_HB || \
46 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB || \
47 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB || \
48 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB || \
49 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB || \
50 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GME_HB)
51
52 #define IS_I965 (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82946GZ_HB || \
53 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82G35_HB || \
54 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82965Q_HB || \
55 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82965G_HB || \
56 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82965GM_HB || \
57 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82965GME_HB)
58
59 #define IS_G33 (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_G33_HB || \
60 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q35_HB || \
61 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q33_HB)
62
63 #define IS_G4X (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGD_E_HB || \
64 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q45_HB || \
65 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_G45_HB || \
66 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_GM45_HB)
67
68 extern int agp_memory_reserved;
69
70
71 /* Intel 815 register */
72 #define INTEL_815_APCONT 0x51
73 #define INTEL_815_ATTBASE_MASK ~0x1FFFFFFF
74
75 /* Intel i820 registers */
76 #define INTEL_I820_RDCR 0x51
77 #define INTEL_I820_ERRSTS 0xc8
78
79 /* Intel i840 registers */
80 #define INTEL_I840_MCHCFG 0x50
81 #define INTEL_I840_ERRSTS 0xc8
82
83 /* Intel i850 registers */
84 #define INTEL_I850_MCHCFG 0x50
85 #define INTEL_I850_ERRSTS 0xc8
86
87 /* intel 915G registers */
88 #define I915_GMADDR 0x18
89 #define I915_MMADDR 0x10
90 #define I915_PTEADDR 0x1C
91 #define I915_GMCH_GMS_STOLEN_48M (0x6 << 4)
92 #define I915_GMCH_GMS_STOLEN_64M (0x7 << 4)
93 #define G33_GMCH_GMS_STOLEN_128M (0x8 << 4)
94 #define G33_GMCH_GMS_STOLEN_256M (0x9 << 4)
95 #define INTEL_GMCH_GMS_STOLEN_96M (0xa << 4)
96 #define INTEL_GMCH_GMS_STOLEN_160M (0xb << 4)
97 #define INTEL_GMCH_GMS_STOLEN_224M (0xc << 4)
98 #define INTEL_GMCH_GMS_STOLEN_352M (0xd << 4)
99
100 #define I915_IFPADDR 0x60
101
102 /* Intel 965G registers */
103 #define I965_MSAC 0x62
104 #define I965_IFPADDR 0x70
105
106 /* Intel 7505 registers */
107 #define INTEL_I7505_APSIZE 0x74
108 #define INTEL_I7505_NCAPID 0x60
109 #define INTEL_I7505_NISTAT 0x6c
110 #define INTEL_I7505_ATTBASE 0x78
111 #define INTEL_I7505_ERRSTS 0x42
112 #define INTEL_I7505_AGPCTRL 0x70
113 #define INTEL_I7505_MCHCFG 0x50
114
115 static const struct aper_size_info_fixed intel_i810_sizes[] =
116 {
117 {64, 16384, 4},
118 /* The 32M mode still requires a 64k gatt */
119 {32, 8192, 4}
120 };
121
122 #define AGP_DCACHE_MEMORY 1
123 #define AGP_PHYS_MEMORY 2
124 #define INTEL_AGP_CACHED_MEMORY 3
125
126 static struct gatt_mask intel_i810_masks[] =
127 {
128 {.mask = I810_PTE_VALID, .type = 0},
129 {.mask = (I810_PTE_VALID | I810_PTE_LOCAL), .type = AGP_DCACHE_MEMORY},
130 {.mask = I810_PTE_VALID, .type = 0},
131 {.mask = I810_PTE_VALID | I830_PTE_SYSTEM_CACHED,
132 .type = INTEL_AGP_CACHED_MEMORY}
133 };
134
135 static struct _intel_private {
136 struct pci_dev *pcidev; /* device one */
137 u8 __iomem *registers;
138 u32 __iomem *gtt; /* I915G */
139 int num_dcache_entries;
140 /* gtt_entries is the number of gtt entries that are already mapped
141 * to stolen memory. Stolen memory is larger than the memory mapped
142 * through gtt_entries, as it includes some reserved space for the BIOS
143 * popup and for the GTT.
144 */
145 int gtt_entries; /* i830+ */
146 union {
147 void __iomem *i9xx_flush_page;
148 void *i8xx_flush_page;
149 };
150 struct page *i8xx_page;
151 struct resource ifp_resource;
152 int resource_valid;
153 } intel_private;
154
155 static int intel_i810_fetch_size(void)
156 {
157 u32 smram_miscc;
158 struct aper_size_info_fixed *values;
159
160 pci_read_config_dword(agp_bridge->dev, I810_SMRAM_MISCC, &smram_miscc);
161 values = A_SIZE_FIX(agp_bridge->driver->aperture_sizes);
162
163 if ((smram_miscc & I810_GMS) == I810_GMS_DISABLE) {
164 dev_warn(&agp_bridge->dev->dev, "i810 is disabled\n");
165 return 0;
166 }
167 if ((smram_miscc & I810_GFX_MEM_WIN_SIZE) == I810_GFX_MEM_WIN_32M) {
168 agp_bridge->previous_size =
169 agp_bridge->current_size = (void *) (values + 1);
170 agp_bridge->aperture_size_idx = 1;
171 return values[1].size;
172 } else {
173 agp_bridge->previous_size =
174 agp_bridge->current_size = (void *) (values);
175 agp_bridge->aperture_size_idx = 0;
176 return values[0].size;
177 }
178
179 return 0;
180 }
181
182 static int intel_i810_configure(void)
183 {
184 struct aper_size_info_fixed *current_size;
185 u32 temp;
186 int i;
187
188 current_size = A_SIZE_FIX(agp_bridge->current_size);
189
190 if (!intel_private.registers) {
191 pci_read_config_dword(intel_private.pcidev, I810_MMADDR, &temp);
192 temp &= 0xfff80000;
193
194 intel_private.registers = ioremap(temp, 128 * 4096);
195 if (!intel_private.registers) {
196 dev_err(&intel_private.pcidev->dev,
197 "can't remap memory\n");
198 return -ENOMEM;
199 }
200 }
201
202 if ((readl(intel_private.registers+I810_DRAM_CTL)
203 & I810_DRAM_ROW_0) == I810_DRAM_ROW_0_SDRAM) {
204 /* This will need to be dynamically assigned */
205 dev_info(&intel_private.pcidev->dev,
206 "detected 4MB dedicated video ram\n");
207 intel_private.num_dcache_entries = 1024;
208 }
209 pci_read_config_dword(intel_private.pcidev, I810_GMADDR, &temp);
210 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
211 writel(agp_bridge->gatt_bus_addr | I810_PGETBL_ENABLED, intel_private.registers+I810_PGETBL_CTL);
212 readl(intel_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
213
214 if (agp_bridge->driver->needs_scratch_page) {
215 for (i = 0; i < current_size->num_entries; i++) {
216 writel(agp_bridge->scratch_page, intel_private.registers+I810_PTE_BASE+(i*4));
217 }
218 readl(intel_private.registers+I810_PTE_BASE+((i-1)*4)); /* PCI posting. */
219 }
220 global_cache_flush();
221 return 0;
222 }
223
224 static void intel_i810_cleanup(void)
225 {
226 writel(0, intel_private.registers+I810_PGETBL_CTL);
227 readl(intel_private.registers); /* PCI Posting. */
228 iounmap(intel_private.registers);
229 }
230
231 static void intel_i810_tlbflush(struct agp_memory *mem)
232 {
233 return;
234 }
235
236 static void intel_i810_agp_enable(struct agp_bridge_data *bridge, u32 mode)
237 {
238 return;
239 }
240
241 /* Exists to support ARGB cursors */
242 static void *i8xx_alloc_pages(void)
243 {
244 struct page *page;
245
246 page = alloc_pages(GFP_KERNEL | GFP_DMA32, 2);
247 if (page == NULL)
248 return NULL;
249
250 if (set_pages_uc(page, 4) < 0) {
251 set_pages_wb(page, 4);
252 __free_pages(page, 2);
253 return NULL;
254 }
255 get_page(page);
256 atomic_inc(&agp_bridge->current_memory_agp);
257 return page_address(page);
258 }
259
260 static void i8xx_destroy_pages(void *addr)
261 {
262 struct page *page;
263
264 if (addr == NULL)
265 return;
266
267 page = virt_to_page(addr);
268 set_pages_wb(page, 4);
269 put_page(page);
270 __free_pages(page, 2);
271 atomic_dec(&agp_bridge->current_memory_agp);
272 }
273
274 static int intel_i830_type_to_mask_type(struct agp_bridge_data *bridge,
275 int type)
276 {
277 if (type < AGP_USER_TYPES)
278 return type;
279 else if (type == AGP_USER_CACHED_MEMORY)
280 return INTEL_AGP_CACHED_MEMORY;
281 else
282 return 0;
283 }
284
285 static int intel_i810_insert_entries(struct agp_memory *mem, off_t pg_start,
286 int type)
287 {
288 int i, j, num_entries;
289 void *temp;
290 int ret = -EINVAL;
291 int mask_type;
292
293 if (mem->page_count == 0)
294 goto out;
295
296 temp = agp_bridge->current_size;
297 num_entries = A_SIZE_FIX(temp)->num_entries;
298
299 if ((pg_start + mem->page_count) > num_entries)
300 goto out_err;
301
302
303 for (j = pg_start; j < (pg_start + mem->page_count); j++) {
304 if (!PGE_EMPTY(agp_bridge, readl(agp_bridge->gatt_table+j))) {
305 ret = -EBUSY;
306 goto out_err;
307 }
308 }
309
310 if (type != mem->type)
311 goto out_err;
312
313 mask_type = agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type);
314
315 switch (mask_type) {
316 case AGP_DCACHE_MEMORY:
317 if (!mem->is_flushed)
318 global_cache_flush();
319 for (i = pg_start; i < (pg_start + mem->page_count); i++) {
320 writel((i*4096)|I810_PTE_LOCAL|I810_PTE_VALID,
321 intel_private.registers+I810_PTE_BASE+(i*4));
322 }
323 readl(intel_private.registers+I810_PTE_BASE+((i-1)*4));
324 break;
325 case AGP_PHYS_MEMORY:
326 case AGP_NORMAL_MEMORY:
327 if (!mem->is_flushed)
328 global_cache_flush();
329 for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
330 writel(agp_bridge->driver->mask_memory(agp_bridge,
331 mem->memory[i],
332 mask_type),
333 intel_private.registers+I810_PTE_BASE+(j*4));
334 }
335 readl(intel_private.registers+I810_PTE_BASE+((j-1)*4));
336 break;
337 default:
338 goto out_err;
339 }
340
341 agp_bridge->driver->tlb_flush(mem);
342 out:
343 ret = 0;
344 out_err:
345 mem->is_flushed = true;
346 return ret;
347 }
348
349 static int intel_i810_remove_entries(struct agp_memory *mem, off_t pg_start,
350 int type)
351 {
352 int i;
353
354 if (mem->page_count == 0)
355 return 0;
356
357 for (i = pg_start; i < (mem->page_count + pg_start); i++) {
358 writel(agp_bridge->scratch_page, intel_private.registers+I810_PTE_BASE+(i*4));
359 }
360 readl(intel_private.registers+I810_PTE_BASE+((i-1)*4));
361
362 agp_bridge->driver->tlb_flush(mem);
363 return 0;
364 }
365
366 /*
367 * The i810/i830 requires a physical address to program its mouse
368 * pointer into hardware.
369 * However the Xserver still writes to it through the agp aperture.
370 */
371 static struct agp_memory *alloc_agpphysmem_i8xx(size_t pg_count, int type)
372 {
373 struct agp_memory *new;
374 void *addr;
375
376 switch (pg_count) {
377 case 1: addr = agp_bridge->driver->agp_alloc_page(agp_bridge);
378 break;
379 case 4:
380 /* kludge to get 4 physical pages for ARGB cursor */
381 addr = i8xx_alloc_pages();
382 break;
383 default:
384 return NULL;
385 }
386
387 if (addr == NULL)
388 return NULL;
389
390 new = agp_create_memory(pg_count);
391 if (new == NULL)
392 return NULL;
393
394 new->memory[0] = virt_to_gart(addr);
395 if (pg_count == 4) {
396 /* kludge to get 4 physical pages for ARGB cursor */
397 new->memory[1] = new->memory[0] + PAGE_SIZE;
398 new->memory[2] = new->memory[1] + PAGE_SIZE;
399 new->memory[3] = new->memory[2] + PAGE_SIZE;
400 }
401 new->page_count = pg_count;
402 new->num_scratch_pages = pg_count;
403 new->type = AGP_PHYS_MEMORY;
404 new->physical = new->memory[0];
405 return new;
406 }
407
408 static struct agp_memory *intel_i810_alloc_by_type(size_t pg_count, int type)
409 {
410 struct agp_memory *new;
411
412 if (type == AGP_DCACHE_MEMORY) {
413 if (pg_count != intel_private.num_dcache_entries)
414 return NULL;
415
416 new = agp_create_memory(1);
417 if (new == NULL)
418 return NULL;
419
420 new->type = AGP_DCACHE_MEMORY;
421 new->page_count = pg_count;
422 new->num_scratch_pages = 0;
423 agp_free_page_array(new);
424 return new;
425 }
426 if (type == AGP_PHYS_MEMORY)
427 return alloc_agpphysmem_i8xx(pg_count, type);
428 return NULL;
429 }
430
431 static void intel_i810_free_by_type(struct agp_memory *curr)
432 {
433 agp_free_key(curr->key);
434 if (curr->type == AGP_PHYS_MEMORY) {
435 if (curr->page_count == 4)
436 i8xx_destroy_pages(gart_to_virt(curr->memory[0]));
437 else {
438 void *va = gart_to_virt(curr->memory[0]);
439
440 agp_bridge->driver->agp_destroy_page(va,
441 AGP_PAGE_DESTROY_UNMAP);
442 agp_bridge->driver->agp_destroy_page(va,
443 AGP_PAGE_DESTROY_FREE);
444 }
445 agp_free_page_array(curr);
446 }
447 kfree(curr);
448 }
449
450 static unsigned long intel_i810_mask_memory(struct agp_bridge_data *bridge,
451 unsigned long addr, int type)
452 {
453 /* Type checking must be done elsewhere */
454 return addr | bridge->driver->masks[type].mask;
455 }
456
457 static struct aper_size_info_fixed intel_i830_sizes[] =
458 {
459 {128, 32768, 5},
460 /* The 64M mode still requires a 128k gatt */
461 {64, 16384, 5},
462 {256, 65536, 6},
463 {512, 131072, 7},
464 };
465
466 static void intel_i830_init_gtt_entries(void)
467 {
468 u16 gmch_ctrl;
469 int gtt_entries;
470 u8 rdct;
471 int local = 0;
472 static const int ddt[4] = { 0, 16, 32, 64 };
473 int size; /* reserved space (in kb) at the top of stolen memory */
474
475 pci_read_config_word(agp_bridge->dev, I830_GMCH_CTRL, &gmch_ctrl);
476
477 if (IS_I965) {
478 u32 pgetbl_ctl;
479 pgetbl_ctl = readl(intel_private.registers+I810_PGETBL_CTL);
480
481 /* The 965 has a field telling us the size of the GTT,
482 * which may be larger than what is necessary to map the
483 * aperture.
484 */
485 switch (pgetbl_ctl & I965_PGETBL_SIZE_MASK) {
486 case I965_PGETBL_SIZE_128KB:
487 size = 128;
488 break;
489 case I965_PGETBL_SIZE_256KB:
490 size = 256;
491 break;
492 case I965_PGETBL_SIZE_512KB:
493 size = 512;
494 break;
495 case I965_PGETBL_SIZE_1MB:
496 size = 1024;
497 break;
498 case I965_PGETBL_SIZE_2MB:
499 size = 2048;
500 break;
501 case I965_PGETBL_SIZE_1_5MB:
502 size = 1024 + 512;
503 break;
504 default:
505 dev_info(&intel_private.pcidev->dev,
506 "unknown page table size, assuming 512KB\n");
507 size = 512;
508 }
509 size += 4; /* add in BIOS popup space */
510 } else if (IS_G33) {
511 /* G33's GTT size defined in gmch_ctrl */
512 switch (gmch_ctrl & G33_PGETBL_SIZE_MASK) {
513 case G33_PGETBL_SIZE_1M:
514 size = 1024;
515 break;
516 case G33_PGETBL_SIZE_2M:
517 size = 2048;
518 break;
519 default:
520 dev_info(&agp_bridge->dev->dev,
521 "unknown page table size 0x%x, assuming 512KB\n",
522 (gmch_ctrl & G33_PGETBL_SIZE_MASK));
523 size = 512;
524 }
525 size += 4;
526 } else if (IS_G4X) {
527 /* On 4 series hardware, GTT stolen is separate from graphics
528 * stolen, ignore it in stolen gtt entries counting. However,
529 * 4KB of the stolen memory doesn't get mapped to the GTT.
530 */
531 size = 4;
532 } else {
533 /* On previous hardware, the GTT size was just what was
534 * required to map the aperture.
535 */
536 size = agp_bridge->driver->fetch_size() + 4;
537 }
538
539 if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82830_HB ||
540 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) {
541 switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
542 case I830_GMCH_GMS_STOLEN_512:
543 gtt_entries = KB(512) - KB(size);
544 break;
545 case I830_GMCH_GMS_STOLEN_1024:
546 gtt_entries = MB(1) - KB(size);
547 break;
548 case I830_GMCH_GMS_STOLEN_8192:
549 gtt_entries = MB(8) - KB(size);
550 break;
551 case I830_GMCH_GMS_LOCAL:
552 rdct = readb(intel_private.registers+I830_RDRAM_CHANNEL_TYPE);
553 gtt_entries = (I830_RDRAM_ND(rdct) + 1) *
554 MB(ddt[I830_RDRAM_DDT(rdct)]);
555 local = 1;
556 break;
557 default:
558 gtt_entries = 0;
559 break;
560 }
561 } else {
562 switch (gmch_ctrl & I855_GMCH_GMS_MASK) {
563 case I855_GMCH_GMS_STOLEN_1M:
564 gtt_entries = MB(1) - KB(size);
565 break;
566 case I855_GMCH_GMS_STOLEN_4M:
567 gtt_entries = MB(4) - KB(size);
568 break;
569 case I855_GMCH_GMS_STOLEN_8M:
570 gtt_entries = MB(8) - KB(size);
571 break;
572 case I855_GMCH_GMS_STOLEN_16M:
573 gtt_entries = MB(16) - KB(size);
574 break;
575 case I855_GMCH_GMS_STOLEN_32M:
576 gtt_entries = MB(32) - KB(size);
577 break;
578 case I915_GMCH_GMS_STOLEN_48M:
579 /* Check it's really I915G */
580 if (IS_I915 || IS_I965 || IS_G33 || IS_G4X)
581 gtt_entries = MB(48) - KB(size);
582 else
583 gtt_entries = 0;
584 break;
585 case I915_GMCH_GMS_STOLEN_64M:
586 /* Check it's really I915G */
587 if (IS_I915 || IS_I965 || IS_G33 || IS_G4X)
588 gtt_entries = MB(64) - KB(size);
589 else
590 gtt_entries = 0;
591 break;
592 case G33_GMCH_GMS_STOLEN_128M:
593 if (IS_G33 || IS_I965 || IS_G4X)
594 gtt_entries = MB(128) - KB(size);
595 else
596 gtt_entries = 0;
597 break;
598 case G33_GMCH_GMS_STOLEN_256M:
599 if (IS_G33 || IS_I965 || IS_G4X)
600 gtt_entries = MB(256) - KB(size);
601 else
602 gtt_entries = 0;
603 break;
604 case INTEL_GMCH_GMS_STOLEN_96M:
605 if (IS_I965 || IS_G4X)
606 gtt_entries = MB(96) - KB(size);
607 else
608 gtt_entries = 0;
609 break;
610 case INTEL_GMCH_GMS_STOLEN_160M:
611 if (IS_I965 || IS_G4X)
612 gtt_entries = MB(160) - KB(size);
613 else
614 gtt_entries = 0;
615 break;
616 case INTEL_GMCH_GMS_STOLEN_224M:
617 if (IS_I965 || IS_G4X)
618 gtt_entries = MB(224) - KB(size);
619 else
620 gtt_entries = 0;
621 break;
622 case INTEL_GMCH_GMS_STOLEN_352M:
623 if (IS_I965 || IS_G4X)
624 gtt_entries = MB(352) - KB(size);
625 else
626 gtt_entries = 0;
627 break;
628 default:
629 gtt_entries = 0;
630 break;
631 }
632 }
633 if (gtt_entries > 0)
634 dev_info(&agp_bridge->dev->dev, "detected %dK %s memory\n",
635 gtt_entries / KB(1), local ? "local" : "stolen");
636 else
637 dev_info(&agp_bridge->dev->dev,
638 "no pre-allocated video memory detected\n");
639 gtt_entries /= KB(4);
640
641 intel_private.gtt_entries = gtt_entries;
642 }
643
644 static void intel_i830_fini_flush(void)
645 {
646 kunmap(intel_private.i8xx_page);
647 intel_private.i8xx_flush_page = NULL;
648 unmap_page_from_agp(intel_private.i8xx_page);
649
650 __free_page(intel_private.i8xx_page);
651 intel_private.i8xx_page = NULL;
652 }
653
654 static void intel_i830_setup_flush(void)
655 {
656 /* return if we've already set the flush mechanism up */
657 if (intel_private.i8xx_page)
658 return;
659
660 intel_private.i8xx_page = alloc_page(GFP_KERNEL | __GFP_ZERO | GFP_DMA32);
661 if (!intel_private.i8xx_page)
662 return;
663
664 /* make page uncached */
665 map_page_into_agp(intel_private.i8xx_page);
666
667 intel_private.i8xx_flush_page = kmap(intel_private.i8xx_page);
668 if (!intel_private.i8xx_flush_page)
669 intel_i830_fini_flush();
670 }
671
672 static void intel_i830_chipset_flush(struct agp_bridge_data *bridge)
673 {
674 unsigned int *pg = intel_private.i8xx_flush_page;
675 int i;
676
677 for (i = 0; i < 256; i += 2)
678 *(pg + i) = i;
679
680 wmb();
681 }
682
683 /* The intel i830 automatically initializes the agp aperture during POST.
684 * Use the memory already set aside for in the GTT.
685 */
686 static int intel_i830_create_gatt_table(struct agp_bridge_data *bridge)
687 {
688 int page_order;
689 struct aper_size_info_fixed *size;
690 int num_entries;
691 u32 temp;
692
693 size = agp_bridge->current_size;
694 page_order = size->page_order;
695 num_entries = size->num_entries;
696 agp_bridge->gatt_table_real = NULL;
697
698 pci_read_config_dword(intel_private.pcidev, I810_MMADDR, &temp);
699 temp &= 0xfff80000;
700
701 intel_private.registers = ioremap(temp, 128 * 4096);
702 if (!intel_private.registers)
703 return -ENOMEM;
704
705 temp = readl(intel_private.registers+I810_PGETBL_CTL) & 0xfffff000;
706 global_cache_flush(); /* FIXME: ?? */
707
708 /* we have to call this as early as possible after the MMIO base address is known */
709 intel_i830_init_gtt_entries();
710
711 agp_bridge->gatt_table = NULL;
712
713 agp_bridge->gatt_bus_addr = temp;
714
715 return 0;
716 }
717
718 /* Return the gatt table to a sane state. Use the top of stolen
719 * memory for the GTT.
720 */
721 static int intel_i830_free_gatt_table(struct agp_bridge_data *bridge)
722 {
723 return 0;
724 }
725
726 static int intel_i830_fetch_size(void)
727 {
728 u16 gmch_ctrl;
729 struct aper_size_info_fixed *values;
730
731 values = A_SIZE_FIX(agp_bridge->driver->aperture_sizes);
732
733 if (agp_bridge->dev->device != PCI_DEVICE_ID_INTEL_82830_HB &&
734 agp_bridge->dev->device != PCI_DEVICE_ID_INTEL_82845G_HB) {
735 /* 855GM/852GM/865G has 128MB aperture size */
736 agp_bridge->previous_size = agp_bridge->current_size = (void *) values;
737 agp_bridge->aperture_size_idx = 0;
738 return values[0].size;
739 }
740
741 pci_read_config_word(agp_bridge->dev, I830_GMCH_CTRL, &gmch_ctrl);
742
743 if ((gmch_ctrl & I830_GMCH_MEM_MASK) == I830_GMCH_MEM_128M) {
744 agp_bridge->previous_size = agp_bridge->current_size = (void *) values;
745 agp_bridge->aperture_size_idx = 0;
746 return values[0].size;
747 } else {
748 agp_bridge->previous_size = agp_bridge->current_size = (void *) (values + 1);
749 agp_bridge->aperture_size_idx = 1;
750 return values[1].size;
751 }
752
753 return 0;
754 }
755
756 static int intel_i830_configure(void)
757 {
758 struct aper_size_info_fixed *current_size;
759 u32 temp;
760 u16 gmch_ctrl;
761 int i;
762
763 current_size = A_SIZE_FIX(agp_bridge->current_size);
764
765 pci_read_config_dword(intel_private.pcidev, I810_GMADDR, &temp);
766 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
767
768 pci_read_config_word(agp_bridge->dev, I830_GMCH_CTRL, &gmch_ctrl);
769 gmch_ctrl |= I830_GMCH_ENABLED;
770 pci_write_config_word(agp_bridge->dev, I830_GMCH_CTRL, gmch_ctrl);
771
772 writel(agp_bridge->gatt_bus_addr|I810_PGETBL_ENABLED, intel_private.registers+I810_PGETBL_CTL);
773 readl(intel_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
774
775 if (agp_bridge->driver->needs_scratch_page) {
776 for (i = intel_private.gtt_entries; i < current_size->num_entries; i++) {
777 writel(agp_bridge->scratch_page, intel_private.registers+I810_PTE_BASE+(i*4));
778 }
779 readl(intel_private.registers+I810_PTE_BASE+((i-1)*4)); /* PCI Posting. */
780 }
781
782 global_cache_flush();
783
784 intel_i830_setup_flush();
785 return 0;
786 }
787
788 static void intel_i830_cleanup(void)
789 {
790 iounmap(intel_private.registers);
791 }
792
793 static int intel_i830_insert_entries(struct agp_memory *mem, off_t pg_start,
794 int type)
795 {
796 int i, j, num_entries;
797 void *temp;
798 int ret = -EINVAL;
799 int mask_type;
800
801 if (mem->page_count == 0)
802 goto out;
803
804 temp = agp_bridge->current_size;
805 num_entries = A_SIZE_FIX(temp)->num_entries;
806
807 if (pg_start < intel_private.gtt_entries) {
808 dev_printk(KERN_DEBUG, &intel_private.pcidev->dev,
809 "pg_start == 0x%.8lx, intel_private.gtt_entries == 0x%.8x\n",
810 pg_start, intel_private.gtt_entries);
811
812 dev_info(&intel_private.pcidev->dev,
813 "trying to insert into local/stolen memory\n");
814 goto out_err;
815 }
816
817 if ((pg_start + mem->page_count) > num_entries)
818 goto out_err;
819
820 /* The i830 can't check the GTT for entries since its read only,
821 * depend on the caller to make the correct offset decisions.
822 */
823
824 if (type != mem->type)
825 goto out_err;
826
827 mask_type = agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type);
828
829 if (mask_type != 0 && mask_type != AGP_PHYS_MEMORY &&
830 mask_type != INTEL_AGP_CACHED_MEMORY)
831 goto out_err;
832
833 if (!mem->is_flushed)
834 global_cache_flush();
835
836 for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
837 writel(agp_bridge->driver->mask_memory(agp_bridge,
838 mem->memory[i], mask_type),
839 intel_private.registers+I810_PTE_BASE+(j*4));
840 }
841 readl(intel_private.registers+I810_PTE_BASE+((j-1)*4));
842 agp_bridge->driver->tlb_flush(mem);
843
844 out:
845 ret = 0;
846 out_err:
847 mem->is_flushed = true;
848 return ret;
849 }
850
851 static int intel_i830_remove_entries(struct agp_memory *mem, off_t pg_start,
852 int type)
853 {
854 int i;
855
856 if (mem->page_count == 0)
857 return 0;
858
859 if (pg_start < intel_private.gtt_entries) {
860 dev_info(&intel_private.pcidev->dev,
861 "trying to disable local/stolen memory\n");
862 return -EINVAL;
863 }
864
865 for (i = pg_start; i < (mem->page_count + pg_start); i++) {
866 writel(agp_bridge->scratch_page, intel_private.registers+I810_PTE_BASE+(i*4));
867 }
868 readl(intel_private.registers+I810_PTE_BASE+((i-1)*4));
869
870 agp_bridge->driver->tlb_flush(mem);
871 return 0;
872 }
873
874 static struct agp_memory *intel_i830_alloc_by_type(size_t pg_count, int type)
875 {
876 if (type == AGP_PHYS_MEMORY)
877 return alloc_agpphysmem_i8xx(pg_count, type);
878 /* always return NULL for other allocation types for now */
879 return NULL;
880 }
881
882 static int intel_alloc_chipset_flush_resource(void)
883 {
884 int ret;
885 ret = pci_bus_alloc_resource(agp_bridge->dev->bus, &intel_private.ifp_resource, PAGE_SIZE,
886 PAGE_SIZE, PCIBIOS_MIN_MEM, 0,
887 pcibios_align_resource, agp_bridge->dev);
888
889 return ret;
890 }
891
892 static void intel_i915_setup_chipset_flush(void)
893 {
894 int ret;
895 u32 temp;
896
897 pci_read_config_dword(agp_bridge->dev, I915_IFPADDR, &temp);
898 if (!(temp & 0x1)) {
899 intel_alloc_chipset_flush_resource();
900 intel_private.resource_valid = 1;
901 pci_write_config_dword(agp_bridge->dev, I915_IFPADDR, (intel_private.ifp_resource.start & 0xffffffff) | 0x1);
902 } else {
903 temp &= ~1;
904
905 intel_private.resource_valid = 1;
906 intel_private.ifp_resource.start = temp;
907 intel_private.ifp_resource.end = temp + PAGE_SIZE;
908 ret = request_resource(&iomem_resource, &intel_private.ifp_resource);
909 /* some BIOSes reserve this area in a pnp some don't */
910 if (ret)
911 intel_private.resource_valid = 0;
912 }
913 }
914
915 static void intel_i965_g33_setup_chipset_flush(void)
916 {
917 u32 temp_hi, temp_lo;
918 int ret;
919
920 pci_read_config_dword(agp_bridge->dev, I965_IFPADDR + 4, &temp_hi);
921 pci_read_config_dword(agp_bridge->dev, I965_IFPADDR, &temp_lo);
922
923 if (!(temp_lo & 0x1)) {
924
925 intel_alloc_chipset_flush_resource();
926
927 intel_private.resource_valid = 1;
928 pci_write_config_dword(agp_bridge->dev, I965_IFPADDR + 4,
929 upper_32_bits(intel_private.ifp_resource.start));
930 pci_write_config_dword(agp_bridge->dev, I965_IFPADDR, (intel_private.ifp_resource.start & 0xffffffff) | 0x1);
931 } else {
932 u64 l64;
933
934 temp_lo &= ~0x1;
935 l64 = ((u64)temp_hi << 32) | temp_lo;
936
937 intel_private.resource_valid = 1;
938 intel_private.ifp_resource.start = l64;
939 intel_private.ifp_resource.end = l64 + PAGE_SIZE;
940 ret = request_resource(&iomem_resource, &intel_private.ifp_resource);
941 /* some BIOSes reserve this area in a pnp some don't */
942 if (ret)
943 intel_private.resource_valid = 0;
944 }
945 }
946
947 static void intel_i9xx_setup_flush(void)
948 {
949 /* return if already configured */
950 if (intel_private.ifp_resource.start)
951 return;
952
953 /* setup a resource for this object */
954 intel_private.ifp_resource.name = "Intel Flush Page";
955 intel_private.ifp_resource.flags = IORESOURCE_MEM;
956
957 /* Setup chipset flush for 915 */
958 if (IS_I965 || IS_G33 || IS_G4X) {
959 intel_i965_g33_setup_chipset_flush();
960 } else {
961 intel_i915_setup_chipset_flush();
962 }
963
964 if (intel_private.ifp_resource.start) {
965 intel_private.i9xx_flush_page = ioremap_nocache(intel_private.ifp_resource.start, PAGE_SIZE);
966 if (!intel_private.i9xx_flush_page)
967 dev_info(&intel_private.pcidev->dev, "can't ioremap flush page - no chipset flushing");
968 }
969 }
970
971 static int intel_i915_configure(void)
972 {
973 struct aper_size_info_fixed *current_size;
974 u32 temp;
975 u16 gmch_ctrl;
976 int i;
977
978 current_size = A_SIZE_FIX(agp_bridge->current_size);
979
980 pci_read_config_dword(intel_private.pcidev, I915_GMADDR, &temp);
981
982 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
983
984 pci_read_config_word(agp_bridge->dev, I830_GMCH_CTRL, &gmch_ctrl);
985 gmch_ctrl |= I830_GMCH_ENABLED;
986 pci_write_config_word(agp_bridge->dev, I830_GMCH_CTRL, gmch_ctrl);
987
988 writel(agp_bridge->gatt_bus_addr|I810_PGETBL_ENABLED, intel_private.registers+I810_PGETBL_CTL);
989 readl(intel_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
990
991 if (agp_bridge->driver->needs_scratch_page) {
992 for (i = intel_private.gtt_entries; i < current_size->num_entries; i++) {
993 writel(agp_bridge->scratch_page, intel_private.gtt+i);
994 }
995 readl(intel_private.gtt+i-1); /* PCI Posting. */
996 }
997
998 global_cache_flush();
999
1000 intel_i9xx_setup_flush();
1001
1002 return 0;
1003 }
1004
1005 static void intel_i915_cleanup(void)
1006 {
1007 if (intel_private.i9xx_flush_page)
1008 iounmap(intel_private.i9xx_flush_page);
1009 if (intel_private.resource_valid)
1010 release_resource(&intel_private.ifp_resource);
1011 intel_private.ifp_resource.start = 0;
1012 intel_private.resource_valid = 0;
1013 iounmap(intel_private.gtt);
1014 iounmap(intel_private.registers);
1015 }
1016
1017 static void intel_i915_chipset_flush(struct agp_bridge_data *bridge)
1018 {
1019 if (intel_private.i9xx_flush_page)
1020 writel(1, intel_private.i9xx_flush_page);
1021 }
1022
1023 static int intel_i915_insert_entries(struct agp_memory *mem, off_t pg_start,
1024 int type)
1025 {
1026 int i, j, num_entries;
1027 void *temp;
1028 int ret = -EINVAL;
1029 int mask_type;
1030
1031 if (mem->page_count == 0)
1032 goto out;
1033
1034 temp = agp_bridge->current_size;
1035 num_entries = A_SIZE_FIX(temp)->num_entries;
1036
1037 if (pg_start < intel_private.gtt_entries) {
1038 dev_printk(KERN_DEBUG, &intel_private.pcidev->dev,
1039 "pg_start == 0x%.8lx, intel_private.gtt_entries == 0x%.8x\n",
1040 pg_start, intel_private.gtt_entries);
1041
1042 dev_info(&intel_private.pcidev->dev,
1043 "trying to insert into local/stolen memory\n");
1044 goto out_err;
1045 }
1046
1047 if ((pg_start + mem->page_count) > num_entries)
1048 goto out_err;
1049
1050 /* The i915 can't check the GTT for entries since its read only,
1051 * depend on the caller to make the correct offset decisions.
1052 */
1053
1054 if (type != mem->type)
1055 goto out_err;
1056
1057 mask_type = agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type);
1058
1059 if (mask_type != 0 && mask_type != AGP_PHYS_MEMORY &&
1060 mask_type != INTEL_AGP_CACHED_MEMORY)
1061 goto out_err;
1062
1063 if (!mem->is_flushed)
1064 global_cache_flush();
1065
1066 for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
1067 writel(agp_bridge->driver->mask_memory(agp_bridge,
1068 mem->memory[i], mask_type), intel_private.gtt+j);
1069 }
1070
1071 readl(intel_private.gtt+j-1);
1072 agp_bridge->driver->tlb_flush(mem);
1073
1074 out:
1075 ret = 0;
1076 out_err:
1077 mem->is_flushed = true;
1078 return ret;
1079 }
1080
1081 static int intel_i915_remove_entries(struct agp_memory *mem, off_t pg_start,
1082 int type)
1083 {
1084 int i;
1085
1086 if (mem->page_count == 0)
1087 return 0;
1088
1089 if (pg_start < intel_private.gtt_entries) {
1090 dev_info(&intel_private.pcidev->dev,
1091 "trying to disable local/stolen memory\n");
1092 return -EINVAL;
1093 }
1094
1095 for (i = pg_start; i < (mem->page_count + pg_start); i++)
1096 writel(agp_bridge->scratch_page, intel_private.gtt+i);
1097
1098 readl(intel_private.gtt+i-1);
1099
1100 agp_bridge->driver->tlb_flush(mem);
1101 return 0;
1102 }
1103
1104 /* Return the aperture size by just checking the resource length. The effect
1105 * described in the spec of the MSAC registers is just changing of the
1106 * resource size.
1107 */
1108 static int intel_i9xx_fetch_size(void)
1109 {
1110 int num_sizes = ARRAY_SIZE(intel_i830_sizes);
1111 int aper_size; /* size in megabytes */
1112 int i;
1113
1114 aper_size = pci_resource_len(intel_private.pcidev, 2) / MB(1);
1115
1116 for (i = 0; i < num_sizes; i++) {
1117 if (aper_size == intel_i830_sizes[i].size) {
1118 agp_bridge->current_size = intel_i830_sizes + i;
1119 agp_bridge->previous_size = agp_bridge->current_size;
1120 return aper_size;
1121 }
1122 }
1123
1124 return 0;
1125 }
1126
1127 /* The intel i915 automatically initializes the agp aperture during POST.
1128 * Use the memory already set aside for in the GTT.
1129 */
1130 static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
1131 {
1132 int page_order;
1133 struct aper_size_info_fixed *size;
1134 int num_entries;
1135 u32 temp, temp2;
1136 int gtt_map_size = 256 * 1024;
1137
1138 size = agp_bridge->current_size;
1139 page_order = size->page_order;
1140 num_entries = size->num_entries;
1141 agp_bridge->gatt_table_real = NULL;
1142
1143 pci_read_config_dword(intel_private.pcidev, I915_MMADDR, &temp);
1144 pci_read_config_dword(intel_private.pcidev, I915_PTEADDR, &temp2);
1145
1146 if (IS_G33)
1147 gtt_map_size = 1024 * 1024; /* 1M on G33 */
1148 intel_private.gtt = ioremap(temp2, gtt_map_size);
1149 if (!intel_private.gtt)
1150 return -ENOMEM;
1151
1152 temp &= 0xfff80000;
1153
1154 intel_private.registers = ioremap(temp, 128 * 4096);
1155 if (!intel_private.registers) {
1156 iounmap(intel_private.gtt);
1157 return -ENOMEM;
1158 }
1159
1160 temp = readl(intel_private.registers+I810_PGETBL_CTL) & 0xfffff000;
1161 global_cache_flush(); /* FIXME: ? */
1162
1163 /* we have to call this as early as possible after the MMIO base address is known */
1164 intel_i830_init_gtt_entries();
1165
1166 agp_bridge->gatt_table = NULL;
1167
1168 agp_bridge->gatt_bus_addr = temp;
1169
1170 return 0;
1171 }
1172
1173 /*
1174 * The i965 supports 36-bit physical addresses, but to keep
1175 * the format of the GTT the same, the bits that don't fit
1176 * in a 32-bit word are shifted down to bits 4..7.
1177 *
1178 * Gcc is smart enough to notice that "(addr >> 28) & 0xf0"
1179 * is always zero on 32-bit architectures, so no need to make
1180 * this conditional.
1181 */
1182 static unsigned long intel_i965_mask_memory(struct agp_bridge_data *bridge,
1183 unsigned long addr, int type)
1184 {
1185 /* Shift high bits down */
1186 addr |= (addr >> 28) & 0xf0;
1187
1188 /* Type checking must be done elsewhere */
1189 return addr | bridge->driver->masks[type].mask;
1190 }
1191
1192 static void intel_i965_get_gtt_range(int *gtt_offset, int *gtt_size)
1193 {
1194 switch (agp_bridge->dev->device) {
1195 case PCI_DEVICE_ID_INTEL_GM45_HB:
1196 case PCI_DEVICE_ID_INTEL_IGD_E_HB:
1197 case PCI_DEVICE_ID_INTEL_Q45_HB:
1198 case PCI_DEVICE_ID_INTEL_G45_HB:
1199 *gtt_offset = *gtt_size = MB(2);
1200 break;
1201 default:
1202 *gtt_offset = *gtt_size = KB(512);
1203 }
1204 }
1205
1206 /* The intel i965 automatically initializes the agp aperture during POST.
1207 * Use the memory already set aside for in the GTT.
1208 */
1209 static int intel_i965_create_gatt_table(struct agp_bridge_data *bridge)
1210 {
1211 int page_order;
1212 struct aper_size_info_fixed *size;
1213 int num_entries;
1214 u32 temp;
1215 int gtt_offset, gtt_size;
1216
1217 size = agp_bridge->current_size;
1218 page_order = size->page_order;
1219 num_entries = size->num_entries;
1220 agp_bridge->gatt_table_real = NULL;
1221
1222 pci_read_config_dword(intel_private.pcidev, I915_MMADDR, &temp);
1223
1224 temp &= 0xfff00000;
1225
1226 intel_i965_get_gtt_range(&gtt_offset, &gtt_size);
1227
1228 intel_private.gtt = ioremap((temp + gtt_offset) , gtt_size);
1229
1230 if (!intel_private.gtt)
1231 return -ENOMEM;
1232
1233 intel_private.registers = ioremap(temp, 128 * 4096);
1234 if (!intel_private.registers) {
1235 iounmap(intel_private.gtt);
1236 return -ENOMEM;
1237 }
1238
1239 temp = readl(intel_private.registers+I810_PGETBL_CTL) & 0xfffff000;
1240 global_cache_flush(); /* FIXME: ? */
1241
1242 /* we have to call this as early as possible after the MMIO base address is known */
1243 intel_i830_init_gtt_entries();
1244
1245 agp_bridge->gatt_table = NULL;
1246
1247 agp_bridge->gatt_bus_addr = temp;
1248
1249 return 0;
1250 }
1251
1252
1253 static int intel_fetch_size(void)
1254 {
1255 int i;
1256 u16 temp;
1257 struct aper_size_info_16 *values;
1258
1259 pci_read_config_word(agp_bridge->dev, INTEL_APSIZE, &temp);
1260 values = A_SIZE_16(agp_bridge->driver->aperture_sizes);
1261
1262 for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) {
1263 if (temp == values[i].size_value) {
1264 agp_bridge->previous_size = agp_bridge->current_size = (void *) (values + i);
1265 agp_bridge->aperture_size_idx = i;
1266 return values[i].size;
1267 }
1268 }
1269
1270 return 0;
1271 }
1272
1273 static int __intel_8xx_fetch_size(u8 temp)
1274 {
1275 int i;
1276 struct aper_size_info_8 *values;
1277
1278 values = A_SIZE_8(agp_bridge->driver->aperture_sizes);
1279
1280 for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) {
1281 if (temp == values[i].size_value) {
1282 agp_bridge->previous_size =
1283 agp_bridge->current_size = (void *) (values + i);
1284 agp_bridge->aperture_size_idx = i;
1285 return values[i].size;
1286 }
1287 }
1288 return 0;
1289 }
1290
1291 static int intel_8xx_fetch_size(void)
1292 {
1293 u8 temp;
1294
1295 pci_read_config_byte(agp_bridge->dev, INTEL_APSIZE, &temp);
1296 return __intel_8xx_fetch_size(temp);
1297 }
1298
1299 static int intel_815_fetch_size(void)
1300 {
1301 u8 temp;
1302
1303 /* Intel 815 chipsets have a _weird_ APSIZE register with only
1304 * one non-reserved bit, so mask the others out ... */
1305 pci_read_config_byte(agp_bridge->dev, INTEL_APSIZE, &temp);
1306 temp &= (1 << 3);
1307
1308 return __intel_8xx_fetch_size(temp);
1309 }
1310
1311 static void intel_tlbflush(struct agp_memory *mem)
1312 {
1313 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x2200);
1314 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x2280);
1315 }
1316
1317
1318 static void intel_8xx_tlbflush(struct agp_memory *mem)
1319 {
1320 u32 temp;
1321 pci_read_config_dword(agp_bridge->dev, INTEL_AGPCTRL, &temp);
1322 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, temp & ~(1 << 7));
1323 pci_read_config_dword(agp_bridge->dev, INTEL_AGPCTRL, &temp);
1324 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, temp | (1 << 7));
1325 }
1326
1327
1328 static void intel_cleanup(void)
1329 {
1330 u16 temp;
1331 struct aper_size_info_16 *previous_size;
1332
1333 previous_size = A_SIZE_16(agp_bridge->previous_size);
1334 pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp);
1335 pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG, temp & ~(1 << 9));
1336 pci_write_config_word(agp_bridge->dev, INTEL_APSIZE, previous_size->size_value);
1337 }
1338
1339
1340 static void intel_8xx_cleanup(void)
1341 {
1342 u16 temp;
1343 struct aper_size_info_8 *previous_size;
1344
1345 previous_size = A_SIZE_8(agp_bridge->previous_size);
1346 pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp);
1347 pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG, temp & ~(1 << 9));
1348 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, previous_size->size_value);
1349 }
1350
1351
1352 static int intel_configure(void)
1353 {
1354 u32 temp;
1355 u16 temp2;
1356 struct aper_size_info_16 *current_size;
1357
1358 current_size = A_SIZE_16(agp_bridge->current_size);
1359
1360 /* aperture size */
1361 pci_write_config_word(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
1362
1363 /* address to map to */
1364 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1365 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1366
1367 /* attbase - aperture base */
1368 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1369
1370 /* agpctrl */
1371 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x2280);
1372
1373 /* paccfg/nbxcfg */
1374 pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp2);
1375 pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG,
1376 (temp2 & ~(1 << 10)) | (1 << 9));
1377 /* clear any possible error conditions */
1378 pci_write_config_byte(agp_bridge->dev, INTEL_ERRSTS + 1, 7);
1379 return 0;
1380 }
1381
1382 static int intel_815_configure(void)
1383 {
1384 u32 temp, addr;
1385 u8 temp2;
1386 struct aper_size_info_8 *current_size;
1387
1388 /* attbase - aperture base */
1389 /* the Intel 815 chipset spec. says that bits 29-31 in the
1390 * ATTBASE register are reserved -> try not to write them */
1391 if (agp_bridge->gatt_bus_addr & INTEL_815_ATTBASE_MASK) {
1392 dev_emerg(&agp_bridge->dev->dev, "gatt bus addr too high");
1393 return -EINVAL;
1394 }
1395
1396 current_size = A_SIZE_8(agp_bridge->current_size);
1397
1398 /* aperture size */
1399 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE,
1400 current_size->size_value);
1401
1402 /* address to map to */
1403 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1404 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1405
1406 pci_read_config_dword(agp_bridge->dev, INTEL_ATTBASE, &addr);
1407 addr &= INTEL_815_ATTBASE_MASK;
1408 addr |= agp_bridge->gatt_bus_addr;
1409 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, addr);
1410
1411 /* agpctrl */
1412 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1413
1414 /* apcont */
1415 pci_read_config_byte(agp_bridge->dev, INTEL_815_APCONT, &temp2);
1416 pci_write_config_byte(agp_bridge->dev, INTEL_815_APCONT, temp2 | (1 << 1));
1417
1418 /* clear any possible error conditions */
1419 /* Oddness : this chipset seems to have no ERRSTS register ! */
1420 return 0;
1421 }
1422
1423 static void intel_820_tlbflush(struct agp_memory *mem)
1424 {
1425 return;
1426 }
1427
1428 static void intel_820_cleanup(void)
1429 {
1430 u8 temp;
1431 struct aper_size_info_8 *previous_size;
1432
1433 previous_size = A_SIZE_8(agp_bridge->previous_size);
1434 pci_read_config_byte(agp_bridge->dev, INTEL_I820_RDCR, &temp);
1435 pci_write_config_byte(agp_bridge->dev, INTEL_I820_RDCR,
1436 temp & ~(1 << 1));
1437 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE,
1438 previous_size->size_value);
1439 }
1440
1441
1442 static int intel_820_configure(void)
1443 {
1444 u32 temp;
1445 u8 temp2;
1446 struct aper_size_info_8 *current_size;
1447
1448 current_size = A_SIZE_8(agp_bridge->current_size);
1449
1450 /* aperture size */
1451 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
1452
1453 /* address to map to */
1454 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1455 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1456
1457 /* attbase - aperture base */
1458 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1459
1460 /* agpctrl */
1461 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1462
1463 /* global enable aperture access */
1464 /* This flag is not accessed through MCHCFG register as in */
1465 /* i850 chipset. */
1466 pci_read_config_byte(agp_bridge->dev, INTEL_I820_RDCR, &temp2);
1467 pci_write_config_byte(agp_bridge->dev, INTEL_I820_RDCR, temp2 | (1 << 1));
1468 /* clear any possible AGP-related error conditions */
1469 pci_write_config_word(agp_bridge->dev, INTEL_I820_ERRSTS, 0x001c);
1470 return 0;
1471 }
1472
1473 static int intel_840_configure(void)
1474 {
1475 u32 temp;
1476 u16 temp2;
1477 struct aper_size_info_8 *current_size;
1478
1479 current_size = A_SIZE_8(agp_bridge->current_size);
1480
1481 /* aperture size */
1482 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
1483
1484 /* address to map to */
1485 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1486 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1487
1488 /* attbase - aperture base */
1489 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1490
1491 /* agpctrl */
1492 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1493
1494 /* mcgcfg */
1495 pci_read_config_word(agp_bridge->dev, INTEL_I840_MCHCFG, &temp2);
1496 pci_write_config_word(agp_bridge->dev, INTEL_I840_MCHCFG, temp2 | (1 << 9));
1497 /* clear any possible error conditions */
1498 pci_write_config_word(agp_bridge->dev, INTEL_I840_ERRSTS, 0xc000);
1499 return 0;
1500 }
1501
1502 static int intel_845_configure(void)
1503 {
1504 u32 temp;
1505 u8 temp2;
1506 struct aper_size_info_8 *current_size;
1507
1508 current_size = A_SIZE_8(agp_bridge->current_size);
1509
1510 /* aperture size */
1511 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
1512
1513 if (agp_bridge->apbase_config != 0) {
1514 pci_write_config_dword(agp_bridge->dev, AGP_APBASE,
1515 agp_bridge->apbase_config);
1516 } else {
1517 /* address to map to */
1518 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1519 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1520 agp_bridge->apbase_config = temp;
1521 }
1522
1523 /* attbase - aperture base */
1524 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1525
1526 /* agpctrl */
1527 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1528
1529 /* agpm */
1530 pci_read_config_byte(agp_bridge->dev, INTEL_I845_AGPM, &temp2);
1531 pci_write_config_byte(agp_bridge->dev, INTEL_I845_AGPM, temp2 | (1 << 1));
1532 /* clear any possible error conditions */
1533 pci_write_config_word(agp_bridge->dev, INTEL_I845_ERRSTS, 0x001c);
1534
1535 intel_i830_setup_flush();
1536 return 0;
1537 }
1538
1539 static int intel_850_configure(void)
1540 {
1541 u32 temp;
1542 u16 temp2;
1543 struct aper_size_info_8 *current_size;
1544
1545 current_size = A_SIZE_8(agp_bridge->current_size);
1546
1547 /* aperture size */
1548 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
1549
1550 /* address to map to */
1551 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1552 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1553
1554 /* attbase - aperture base */
1555 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1556
1557 /* agpctrl */
1558 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1559
1560 /* mcgcfg */
1561 pci_read_config_word(agp_bridge->dev, INTEL_I850_MCHCFG, &temp2);
1562 pci_write_config_word(agp_bridge->dev, INTEL_I850_MCHCFG, temp2 | (1 << 9));
1563 /* clear any possible AGP-related error conditions */
1564 pci_write_config_word(agp_bridge->dev, INTEL_I850_ERRSTS, 0x001c);
1565 return 0;
1566 }
1567
1568 static int intel_860_configure(void)
1569 {
1570 u32 temp;
1571 u16 temp2;
1572 struct aper_size_info_8 *current_size;
1573
1574 current_size = A_SIZE_8(agp_bridge->current_size);
1575
1576 /* aperture size */
1577 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
1578
1579 /* address to map to */
1580 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1581 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1582
1583 /* attbase - aperture base */
1584 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1585
1586 /* agpctrl */
1587 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1588
1589 /* mcgcfg */
1590 pci_read_config_word(agp_bridge->dev, INTEL_I860_MCHCFG, &temp2);
1591 pci_write_config_word(agp_bridge->dev, INTEL_I860_MCHCFG, temp2 | (1 << 9));
1592 /* clear any possible AGP-related error conditions */
1593 pci_write_config_word(agp_bridge->dev, INTEL_I860_ERRSTS, 0xf700);
1594 return 0;
1595 }
1596
1597 static int intel_830mp_configure(void)
1598 {
1599 u32 temp;
1600 u16 temp2;
1601 struct aper_size_info_8 *current_size;
1602
1603 current_size = A_SIZE_8(agp_bridge->current_size);
1604
1605 /* aperture size */
1606 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
1607
1608 /* address to map to */
1609 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1610 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1611
1612 /* attbase - aperture base */
1613 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1614
1615 /* agpctrl */
1616 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1617
1618 /* gmch */
1619 pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp2);
1620 pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG, temp2 | (1 << 9));
1621 /* clear any possible AGP-related error conditions */
1622 pci_write_config_word(agp_bridge->dev, INTEL_I830_ERRSTS, 0x1c);
1623 return 0;
1624 }
1625
1626 static int intel_7505_configure(void)
1627 {
1628 u32 temp;
1629 u16 temp2;
1630 struct aper_size_info_8 *current_size;
1631
1632 current_size = A_SIZE_8(agp_bridge->current_size);
1633
1634 /* aperture size */
1635 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
1636
1637 /* address to map to */
1638 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1639 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1640
1641 /* attbase - aperture base */
1642 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1643
1644 /* agpctrl */
1645 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1646
1647 /* mchcfg */
1648 pci_read_config_word(agp_bridge->dev, INTEL_I7505_MCHCFG, &temp2);
1649 pci_write_config_word(agp_bridge->dev, INTEL_I7505_MCHCFG, temp2 | (1 << 9));
1650
1651 return 0;
1652 }
1653
1654 /* Setup function */
1655 static const struct gatt_mask intel_generic_masks[] =
1656 {
1657 {.mask = 0x00000017, .type = 0}
1658 };
1659
1660 static const struct aper_size_info_8 intel_815_sizes[2] =
1661 {
1662 {64, 16384, 4, 0},
1663 {32, 8192, 3, 8},
1664 };
1665
1666 static const struct aper_size_info_8 intel_8xx_sizes[7] =
1667 {
1668 {256, 65536, 6, 0},
1669 {128, 32768, 5, 32},
1670 {64, 16384, 4, 48},
1671 {32, 8192, 3, 56},
1672 {16, 4096, 2, 60},
1673 {8, 2048, 1, 62},
1674 {4, 1024, 0, 63}
1675 };
1676
1677 static const struct aper_size_info_16 intel_generic_sizes[7] =
1678 {
1679 {256, 65536, 6, 0},
1680 {128, 32768, 5, 32},
1681 {64, 16384, 4, 48},
1682 {32, 8192, 3, 56},
1683 {16, 4096, 2, 60},
1684 {8, 2048, 1, 62},
1685 {4, 1024, 0, 63}
1686 };
1687
1688 static const struct aper_size_info_8 intel_830mp_sizes[4] =
1689 {
1690 {256, 65536, 6, 0},
1691 {128, 32768, 5, 32},
1692 {64, 16384, 4, 48},
1693 {32, 8192, 3, 56}
1694 };
1695
1696 static const struct agp_bridge_driver intel_generic_driver = {
1697 .owner = THIS_MODULE,
1698 .aperture_sizes = intel_generic_sizes,
1699 .size_type = U16_APER_SIZE,
1700 .num_aperture_sizes = 7,
1701 .configure = intel_configure,
1702 .fetch_size = intel_fetch_size,
1703 .cleanup = intel_cleanup,
1704 .tlb_flush = intel_tlbflush,
1705 .mask_memory = agp_generic_mask_memory,
1706 .masks = intel_generic_masks,
1707 .agp_enable = agp_generic_enable,
1708 .cache_flush = global_cache_flush,
1709 .create_gatt_table = agp_generic_create_gatt_table,
1710 .free_gatt_table = agp_generic_free_gatt_table,
1711 .insert_memory = agp_generic_insert_memory,
1712 .remove_memory = agp_generic_remove_memory,
1713 .alloc_by_type = agp_generic_alloc_by_type,
1714 .free_by_type = agp_generic_free_by_type,
1715 .agp_alloc_page = agp_generic_alloc_page,
1716 .agp_alloc_pages = agp_generic_alloc_pages,
1717 .agp_destroy_page = agp_generic_destroy_page,
1718 .agp_destroy_pages = agp_generic_destroy_pages,
1719 .agp_type_to_mask_type = agp_generic_type_to_mask_type,
1720 };
1721
1722 static const struct agp_bridge_driver intel_810_driver = {
1723 .owner = THIS_MODULE,
1724 .aperture_sizes = intel_i810_sizes,
1725 .size_type = FIXED_APER_SIZE,
1726 .num_aperture_sizes = 2,
1727 .needs_scratch_page = true,
1728 .configure = intel_i810_configure,
1729 .fetch_size = intel_i810_fetch_size,
1730 .cleanup = intel_i810_cleanup,
1731 .tlb_flush = intel_i810_tlbflush,
1732 .mask_memory = intel_i810_mask_memory,
1733 .masks = intel_i810_masks,
1734 .agp_enable = intel_i810_agp_enable,
1735 .cache_flush = global_cache_flush,
1736 .create_gatt_table = agp_generic_create_gatt_table,
1737 .free_gatt_table = agp_generic_free_gatt_table,
1738 .insert_memory = intel_i810_insert_entries,
1739 .remove_memory = intel_i810_remove_entries,
1740 .alloc_by_type = intel_i810_alloc_by_type,
1741 .free_by_type = intel_i810_free_by_type,
1742 .agp_alloc_page = agp_generic_alloc_page,
1743 .agp_alloc_pages = agp_generic_alloc_pages,
1744 .agp_destroy_page = agp_generic_destroy_page,
1745 .agp_destroy_pages = agp_generic_destroy_pages,
1746 .agp_type_to_mask_type = agp_generic_type_to_mask_type,
1747 };
1748
1749 static const struct agp_bridge_driver intel_815_driver = {
1750 .owner = THIS_MODULE,
1751 .aperture_sizes = intel_815_sizes,
1752 .size_type = U8_APER_SIZE,
1753 .num_aperture_sizes = 2,
1754 .configure = intel_815_configure,
1755 .fetch_size = intel_815_fetch_size,
1756 .cleanup = intel_8xx_cleanup,
1757 .tlb_flush = intel_8xx_tlbflush,
1758 .mask_memory = agp_generic_mask_memory,
1759 .masks = intel_generic_masks,
1760 .agp_enable = agp_generic_enable,
1761 .cache_flush = global_cache_flush,
1762 .create_gatt_table = agp_generic_create_gatt_table,
1763 .free_gatt_table = agp_generic_free_gatt_table,
1764 .insert_memory = agp_generic_insert_memory,
1765 .remove_memory = agp_generic_remove_memory,
1766 .alloc_by_type = agp_generic_alloc_by_type,
1767 .free_by_type = agp_generic_free_by_type,
1768 .agp_alloc_page = agp_generic_alloc_page,
1769 .agp_alloc_pages = agp_generic_alloc_pages,
1770 .agp_destroy_page = agp_generic_destroy_page,
1771 .agp_destroy_pages = agp_generic_destroy_pages,
1772 .agp_type_to_mask_type = agp_generic_type_to_mask_type,
1773 };
1774
1775 static const struct agp_bridge_driver intel_830_driver = {
1776 .owner = THIS_MODULE,
1777 .aperture_sizes = intel_i830_sizes,
1778 .size_type = FIXED_APER_SIZE,
1779 .num_aperture_sizes = 4,
1780 .needs_scratch_page = true,
1781 .configure = intel_i830_configure,
1782 .fetch_size = intel_i830_fetch_size,
1783 .cleanup = intel_i830_cleanup,
1784 .tlb_flush = intel_i810_tlbflush,
1785 .mask_memory = intel_i810_mask_memory,
1786 .masks = intel_i810_masks,
1787 .agp_enable = intel_i810_agp_enable,
1788 .cache_flush = global_cache_flush,
1789 .create_gatt_table = intel_i830_create_gatt_table,
1790 .free_gatt_table = intel_i830_free_gatt_table,
1791 .insert_memory = intel_i830_insert_entries,
1792 .remove_memory = intel_i830_remove_entries,
1793 .alloc_by_type = intel_i830_alloc_by_type,
1794 .free_by_type = intel_i810_free_by_type,
1795 .agp_alloc_page = agp_generic_alloc_page,
1796 .agp_alloc_pages = agp_generic_alloc_pages,
1797 .agp_destroy_page = agp_generic_destroy_page,
1798 .agp_destroy_pages = agp_generic_destroy_pages,
1799 .agp_type_to_mask_type = intel_i830_type_to_mask_type,
1800 .chipset_flush = intel_i830_chipset_flush,
1801 };
1802
1803 static const struct agp_bridge_driver intel_820_driver = {
1804 .owner = THIS_MODULE,
1805 .aperture_sizes = intel_8xx_sizes,
1806 .size_type = U8_APER_SIZE,
1807 .num_aperture_sizes = 7,
1808 .configure = intel_820_configure,
1809 .fetch_size = intel_8xx_fetch_size,
1810 .cleanup = intel_820_cleanup,
1811 .tlb_flush = intel_820_tlbflush,
1812 .mask_memory = agp_generic_mask_memory,
1813 .masks = intel_generic_masks,
1814 .agp_enable = agp_generic_enable,
1815 .cache_flush = global_cache_flush,
1816 .create_gatt_table = agp_generic_create_gatt_table,
1817 .free_gatt_table = agp_generic_free_gatt_table,
1818 .insert_memory = agp_generic_insert_memory,
1819 .remove_memory = agp_generic_remove_memory,
1820 .alloc_by_type = agp_generic_alloc_by_type,
1821 .free_by_type = agp_generic_free_by_type,
1822 .agp_alloc_page = agp_generic_alloc_page,
1823 .agp_alloc_pages = agp_generic_alloc_pages,
1824 .agp_destroy_page = agp_generic_destroy_page,
1825 .agp_destroy_pages = agp_generic_destroy_pages,
1826 .agp_type_to_mask_type = agp_generic_type_to_mask_type,
1827 };
1828
1829 static const struct agp_bridge_driver intel_830mp_driver = {
1830 .owner = THIS_MODULE,
1831 .aperture_sizes = intel_830mp_sizes,
1832 .size_type = U8_APER_SIZE,
1833 .num_aperture_sizes = 4,
1834 .configure = intel_830mp_configure,
1835 .fetch_size = intel_8xx_fetch_size,
1836 .cleanup = intel_8xx_cleanup,
1837 .tlb_flush = intel_8xx_tlbflush,
1838 .mask_memory = agp_generic_mask_memory,
1839 .masks = intel_generic_masks,
1840 .agp_enable = agp_generic_enable,
1841 .cache_flush = global_cache_flush,
1842 .create_gatt_table = agp_generic_create_gatt_table,
1843 .free_gatt_table = agp_generic_free_gatt_table,
1844 .insert_memory = agp_generic_insert_memory,
1845 .remove_memory = agp_generic_remove_memory,
1846 .alloc_by_type = agp_generic_alloc_by_type,
1847 .free_by_type = agp_generic_free_by_type,
1848 .agp_alloc_page = agp_generic_alloc_page,
1849 .agp_alloc_pages = agp_generic_alloc_pages,
1850 .agp_destroy_page = agp_generic_destroy_page,
1851 .agp_destroy_pages = agp_generic_destroy_pages,
1852 .agp_type_to_mask_type = agp_generic_type_to_mask_type,
1853 };
1854
1855 static const struct agp_bridge_driver intel_840_driver = {
1856 .owner = THIS_MODULE,
1857 .aperture_sizes = intel_8xx_sizes,
1858 .size_type = U8_APER_SIZE,
1859 .num_aperture_sizes = 7,
1860 .configure = intel_840_configure,
1861 .fetch_size = intel_8xx_fetch_size,
1862 .cleanup = intel_8xx_cleanup,
1863 .tlb_flush = intel_8xx_tlbflush,
1864 .mask_memory = agp_generic_mask_memory,
1865 .masks = intel_generic_masks,
1866 .agp_enable = agp_generic_enable,
1867 .cache_flush = global_cache_flush,
1868 .create_gatt_table = agp_generic_create_gatt_table,
1869 .free_gatt_table = agp_generic_free_gatt_table,
1870 .insert_memory = agp_generic_insert_memory,
1871 .remove_memory = agp_generic_remove_memory,
1872 .alloc_by_type = agp_generic_alloc_by_type,
1873 .free_by_type = agp_generic_free_by_type,
1874 .agp_alloc_page = agp_generic_alloc_page,
1875 .agp_alloc_pages = agp_generic_alloc_pages,
1876 .agp_destroy_page = agp_generic_destroy_page,
1877 .agp_destroy_pages = agp_generic_destroy_pages,
1878 .agp_type_to_mask_type = agp_generic_type_to_mask_type,
1879 };
1880
1881 static const struct agp_bridge_driver intel_845_driver = {
1882 .owner = THIS_MODULE,
1883 .aperture_sizes = intel_8xx_sizes,
1884 .size_type = U8_APER_SIZE,
1885 .num_aperture_sizes = 7,
1886 .configure = intel_845_configure,
1887 .fetch_size = intel_8xx_fetch_size,
1888 .cleanup = intel_8xx_cleanup,
1889 .tlb_flush = intel_8xx_tlbflush,
1890 .mask_memory = agp_generic_mask_memory,
1891 .masks = intel_generic_masks,
1892 .agp_enable = agp_generic_enable,
1893 .cache_flush = global_cache_flush,
1894 .create_gatt_table = agp_generic_create_gatt_table,
1895 .free_gatt_table = agp_generic_free_gatt_table,
1896 .insert_memory = agp_generic_insert_memory,
1897 .remove_memory = agp_generic_remove_memory,
1898 .alloc_by_type = agp_generic_alloc_by_type,
1899 .free_by_type = agp_generic_free_by_type,
1900 .agp_alloc_page = agp_generic_alloc_page,
1901 .agp_alloc_pages = agp_generic_alloc_pages,
1902 .agp_destroy_page = agp_generic_destroy_page,
1903 .agp_destroy_pages = agp_generic_destroy_pages,
1904 .agp_type_to_mask_type = agp_generic_type_to_mask_type,
1905 .chipset_flush = intel_i830_chipset_flush,
1906 };
1907
1908 static const struct agp_bridge_driver intel_850_driver = {
1909 .owner = THIS_MODULE,
1910 .aperture_sizes = intel_8xx_sizes,
1911 .size_type = U8_APER_SIZE,
1912 .num_aperture_sizes = 7,
1913 .configure = intel_850_configure,
1914 .fetch_size = intel_8xx_fetch_size,
1915 .cleanup = intel_8xx_cleanup,
1916 .tlb_flush = intel_8xx_tlbflush,
1917 .mask_memory = agp_generic_mask_memory,
1918 .masks = intel_generic_masks,
1919 .agp_enable = agp_generic_enable,
1920 .cache_flush = global_cache_flush,
1921 .create_gatt_table = agp_generic_create_gatt_table,
1922 .free_gatt_table = agp_generic_free_gatt_table,
1923 .insert_memory = agp_generic_insert_memory,
1924 .remove_memory = agp_generic_remove_memory,
1925 .alloc_by_type = agp_generic_alloc_by_type,
1926 .free_by_type = agp_generic_free_by_type,
1927 .agp_alloc_page = agp_generic_alloc_page,
1928 .agp_alloc_pages = agp_generic_alloc_pages,
1929 .agp_destroy_page = agp_generic_destroy_page,
1930 .agp_destroy_pages = agp_generic_destroy_pages,
1931 .agp_type_to_mask_type = agp_generic_type_to_mask_type,
1932 };
1933
1934 static const struct agp_bridge_driver intel_860_driver = {
1935 .owner = THIS_MODULE,
1936 .aperture_sizes = intel_8xx_sizes,
1937 .size_type = U8_APER_SIZE,
1938 .num_aperture_sizes = 7,
1939 .configure = intel_860_configure,
1940 .fetch_size = intel_8xx_fetch_size,
1941 .cleanup = intel_8xx_cleanup,
1942 .tlb_flush = intel_8xx_tlbflush,
1943 .mask_memory = agp_generic_mask_memory,
1944 .masks = intel_generic_masks,
1945 .agp_enable = agp_generic_enable,
1946 .cache_flush = global_cache_flush,
1947 .create_gatt_table = agp_generic_create_gatt_table,
1948 .free_gatt_table = agp_generic_free_gatt_table,
1949 .insert_memory = agp_generic_insert_memory,
1950 .remove_memory = agp_generic_remove_memory,
1951 .alloc_by_type = agp_generic_alloc_by_type,
1952 .free_by_type = agp_generic_free_by_type,
1953 .agp_alloc_page = agp_generic_alloc_page,
1954 .agp_alloc_pages = agp_generic_alloc_pages,
1955 .agp_destroy_page = agp_generic_destroy_page,
1956 .agp_destroy_pages = agp_generic_destroy_pages,
1957 .agp_type_to_mask_type = agp_generic_type_to_mask_type,
1958 };
1959
1960 static const struct agp_bridge_driver intel_915_driver = {
1961 .owner = THIS_MODULE,
1962 .aperture_sizes = intel_i830_sizes,
1963 .size_type = FIXED_APER_SIZE,
1964 .num_aperture_sizes = 4,
1965 .needs_scratch_page = true,
1966 .configure = intel_i915_configure,
1967 .fetch_size = intel_i9xx_fetch_size,
1968 .cleanup = intel_i915_cleanup,
1969 .tlb_flush = intel_i810_tlbflush,
1970 .mask_memory = intel_i810_mask_memory,
1971 .masks = intel_i810_masks,
1972 .agp_enable = intel_i810_agp_enable,
1973 .cache_flush = global_cache_flush,
1974 .create_gatt_table = intel_i915_create_gatt_table,
1975 .free_gatt_table = intel_i830_free_gatt_table,
1976 .insert_memory = intel_i915_insert_entries,
1977 .remove_memory = intel_i915_remove_entries,
1978 .alloc_by_type = intel_i830_alloc_by_type,
1979 .free_by_type = intel_i810_free_by_type,
1980 .agp_alloc_page = agp_generic_alloc_page,
1981 .agp_alloc_pages = agp_generic_alloc_pages,
1982 .agp_destroy_page = agp_generic_destroy_page,
1983 .agp_destroy_pages = agp_generic_destroy_pages,
1984 .agp_type_to_mask_type = intel_i830_type_to_mask_type,
1985 .chipset_flush = intel_i915_chipset_flush,
1986 };
1987
1988 static const struct agp_bridge_driver intel_i965_driver = {
1989 .owner = THIS_MODULE,
1990 .aperture_sizes = intel_i830_sizes,
1991 .size_type = FIXED_APER_SIZE,
1992 .num_aperture_sizes = 4,
1993 .needs_scratch_page = true,
1994 .configure = intel_i915_configure,
1995 .fetch_size = intel_i9xx_fetch_size,
1996 .cleanup = intel_i915_cleanup,
1997 .tlb_flush = intel_i810_tlbflush,
1998 .mask_memory = intel_i965_mask_memory,
1999 .masks = intel_i810_masks,
2000 .agp_enable = intel_i810_agp_enable,
2001 .cache_flush = global_cache_flush,
2002 .create_gatt_table = intel_i965_create_gatt_table,
2003 .free_gatt_table = intel_i830_free_gatt_table,
2004 .insert_memory = intel_i915_insert_entries,
2005 .remove_memory = intel_i915_remove_entries,
2006 .alloc_by_type = intel_i830_alloc_by_type,
2007 .free_by_type = intel_i810_free_by_type,
2008 .agp_alloc_page = agp_generic_alloc_page,
2009 .agp_alloc_pages = agp_generic_alloc_pages,
2010 .agp_destroy_page = agp_generic_destroy_page,
2011 .agp_destroy_pages = agp_generic_destroy_pages,
2012 .agp_type_to_mask_type = intel_i830_type_to_mask_type,
2013 .chipset_flush = intel_i915_chipset_flush,
2014 };
2015
2016 static const struct agp_bridge_driver intel_7505_driver = {
2017 .owner = THIS_MODULE,
2018 .aperture_sizes = intel_8xx_sizes,
2019 .size_type = U8_APER_SIZE,
2020 .num_aperture_sizes = 7,
2021 .configure = intel_7505_configure,
2022 .fetch_size = intel_8xx_fetch_size,
2023 .cleanup = intel_8xx_cleanup,
2024 .tlb_flush = intel_8xx_tlbflush,
2025 .mask_memory = agp_generic_mask_memory,
2026 .masks = intel_generic_masks,
2027 .agp_enable = agp_generic_enable,
2028 .cache_flush = global_cache_flush,
2029 .create_gatt_table = agp_generic_create_gatt_table,
2030 .free_gatt_table = agp_generic_free_gatt_table,
2031 .insert_memory = agp_generic_insert_memory,
2032 .remove_memory = agp_generic_remove_memory,
2033 .alloc_by_type = agp_generic_alloc_by_type,
2034 .free_by_type = agp_generic_free_by_type,
2035 .agp_alloc_page = agp_generic_alloc_page,
2036 .agp_alloc_pages = agp_generic_alloc_pages,
2037 .agp_destroy_page = agp_generic_destroy_page,
2038 .agp_destroy_pages = agp_generic_destroy_pages,
2039 .agp_type_to_mask_type = agp_generic_type_to_mask_type,
2040 };
2041
2042 static const struct agp_bridge_driver intel_g33_driver = {
2043 .owner = THIS_MODULE,
2044 .aperture_sizes = intel_i830_sizes,
2045 .size_type = FIXED_APER_SIZE,
2046 .num_aperture_sizes = 4,
2047 .needs_scratch_page = true,
2048 .configure = intel_i915_configure,
2049 .fetch_size = intel_i9xx_fetch_size,
2050 .cleanup = intel_i915_cleanup,
2051 .tlb_flush = intel_i810_tlbflush,
2052 .mask_memory = intel_i965_mask_memory,
2053 .masks = intel_i810_masks,
2054 .agp_enable = intel_i810_agp_enable,
2055 .cache_flush = global_cache_flush,
2056 .create_gatt_table = intel_i915_create_gatt_table,
2057 .free_gatt_table = intel_i830_free_gatt_table,
2058 .insert_memory = intel_i915_insert_entries,
2059 .remove_memory = intel_i915_remove_entries,
2060 .alloc_by_type = intel_i830_alloc_by_type,
2061 .free_by_type = intel_i810_free_by_type,
2062 .agp_alloc_page = agp_generic_alloc_page,
2063 .agp_alloc_pages = agp_generic_alloc_pages,
2064 .agp_destroy_page = agp_generic_destroy_page,
2065 .agp_destroy_pages = agp_generic_destroy_pages,
2066 .agp_type_to_mask_type = intel_i830_type_to_mask_type,
2067 .chipset_flush = intel_i915_chipset_flush,
2068 };
2069
2070 static int find_gmch(u16 device)
2071 {
2072 struct pci_dev *gmch_device;
2073
2074 gmch_device = pci_get_device(PCI_VENDOR_ID_INTEL, device, NULL);
2075 if (gmch_device && PCI_FUNC(gmch_device->devfn) != 0) {
2076 gmch_device = pci_get_device(PCI_VENDOR_ID_INTEL,
2077 device, gmch_device);
2078 }
2079
2080 if (!gmch_device)
2081 return 0;
2082
2083 intel_private.pcidev = gmch_device;
2084 return 1;
2085 }
2086
2087 /* Table to describe Intel GMCH and AGP/PCIE GART drivers. At least one of
2088 * driver and gmch_driver must be non-null, and find_gmch will determine
2089 * which one should be used if a gmch_chip_id is present.
2090 */
2091 static const struct intel_driver_description {
2092 unsigned int chip_id;
2093 unsigned int gmch_chip_id;
2094 unsigned int multi_gmch_chip; /* if we have more gfx chip type on this HB. */
2095 char *name;
2096 const struct agp_bridge_driver *driver;
2097 const struct agp_bridge_driver *gmch_driver;
2098 } intel_agp_chipsets[] = {
2099 { PCI_DEVICE_ID_INTEL_82443LX_0, 0, 0, "440LX", &intel_generic_driver, NULL },
2100 { PCI_DEVICE_ID_INTEL_82443BX_0, 0, 0, "440BX", &intel_generic_driver, NULL },
2101 { PCI_DEVICE_ID_INTEL_82443GX_0, 0, 0, "440GX", &intel_generic_driver, NULL },
2102 { PCI_DEVICE_ID_INTEL_82810_MC1, PCI_DEVICE_ID_INTEL_82810_IG1, 0, "i810",
2103 NULL, &intel_810_driver },
2104 { PCI_DEVICE_ID_INTEL_82810_MC3, PCI_DEVICE_ID_INTEL_82810_IG3, 0, "i810",
2105 NULL, &intel_810_driver },
2106 { PCI_DEVICE_ID_INTEL_82810E_MC, PCI_DEVICE_ID_INTEL_82810E_IG, 0, "i810",
2107 NULL, &intel_810_driver },
2108 { PCI_DEVICE_ID_INTEL_82815_MC, PCI_DEVICE_ID_INTEL_82815_CGC, 0, "i815",
2109 &intel_815_driver, &intel_810_driver },
2110 { PCI_DEVICE_ID_INTEL_82820_HB, 0, 0, "i820", &intel_820_driver, NULL },
2111 { PCI_DEVICE_ID_INTEL_82820_UP_HB, 0, 0, "i820", &intel_820_driver, NULL },
2112 { PCI_DEVICE_ID_INTEL_82830_HB, PCI_DEVICE_ID_INTEL_82830_CGC, 0, "830M",
2113 &intel_830mp_driver, &intel_830_driver },
2114 { PCI_DEVICE_ID_INTEL_82840_HB, 0, 0, "i840", &intel_840_driver, NULL },
2115 { PCI_DEVICE_ID_INTEL_82845_HB, 0, 0, "845G", &intel_845_driver, NULL },
2116 { PCI_DEVICE_ID_INTEL_82845G_HB, PCI_DEVICE_ID_INTEL_82845G_IG, 0, "830M",
2117 &intel_845_driver, &intel_830_driver },
2118 { PCI_DEVICE_ID_INTEL_82850_HB, 0, 0, "i850", &intel_850_driver, NULL },
2119 { PCI_DEVICE_ID_INTEL_82855PM_HB, 0, 0, "855PM", &intel_845_driver, NULL },
2120 { PCI_DEVICE_ID_INTEL_82855GM_HB, PCI_DEVICE_ID_INTEL_82855GM_IG, 0, "855GM",
2121 &intel_845_driver, &intel_830_driver },
2122 { PCI_DEVICE_ID_INTEL_82860_HB, 0, 0, "i860", &intel_860_driver, NULL },
2123 { PCI_DEVICE_ID_INTEL_82865_HB, PCI_DEVICE_ID_INTEL_82865_IG, 0, "865",
2124 &intel_845_driver, &intel_830_driver },
2125 { PCI_DEVICE_ID_INTEL_82875_HB, 0, 0, "i875", &intel_845_driver, NULL },
2126 { PCI_DEVICE_ID_INTEL_E7221_HB, PCI_DEVICE_ID_INTEL_E7221_IG, 0, "E7221 (i915)",
2127 NULL, &intel_915_driver },
2128 { PCI_DEVICE_ID_INTEL_82915G_HB, PCI_DEVICE_ID_INTEL_82915G_IG, 0, "915G",
2129 NULL, &intel_915_driver },
2130 { PCI_DEVICE_ID_INTEL_82915GM_HB, PCI_DEVICE_ID_INTEL_82915GM_IG, 0, "915GM",
2131 NULL, &intel_915_driver },
2132 { PCI_DEVICE_ID_INTEL_82945G_HB, PCI_DEVICE_ID_INTEL_82945G_IG, 0, "945G",
2133 NULL, &intel_915_driver },
2134 { PCI_DEVICE_ID_INTEL_82945GM_HB, PCI_DEVICE_ID_INTEL_82945GM_IG, 0, "945GM",
2135 NULL, &intel_915_driver },
2136 { PCI_DEVICE_ID_INTEL_82945GME_HB, PCI_DEVICE_ID_INTEL_82945GME_IG, 0, "945GME",
2137 NULL, &intel_915_driver },
2138 { PCI_DEVICE_ID_INTEL_82946GZ_HB, PCI_DEVICE_ID_INTEL_82946GZ_IG, 0, "946GZ",
2139 NULL, &intel_i965_driver },
2140 { PCI_DEVICE_ID_INTEL_82G35_HB, PCI_DEVICE_ID_INTEL_82G35_IG, 0, "G35",
2141 NULL, &intel_i965_driver },
2142 { PCI_DEVICE_ID_INTEL_82965Q_HB, PCI_DEVICE_ID_INTEL_82965Q_IG, 0, "965Q",
2143 NULL, &intel_i965_driver },
2144 { PCI_DEVICE_ID_INTEL_82965G_HB, PCI_DEVICE_ID_INTEL_82965G_IG, 0, "965G",
2145 NULL, &intel_i965_driver },
2146 { PCI_DEVICE_ID_INTEL_82965GM_HB, PCI_DEVICE_ID_INTEL_82965GM_IG, 0, "965GM",
2147 NULL, &intel_i965_driver },
2148 { PCI_DEVICE_ID_INTEL_82965GME_HB, PCI_DEVICE_ID_INTEL_82965GME_IG, 0, "965GME/GLE",
2149 NULL, &intel_i965_driver },
2150 { PCI_DEVICE_ID_INTEL_7505_0, 0, 0, "E7505", &intel_7505_driver, NULL },
2151 { PCI_DEVICE_ID_INTEL_7205_0, 0, 0, "E7205", &intel_7505_driver, NULL },
2152 { PCI_DEVICE_ID_INTEL_G33_HB, PCI_DEVICE_ID_INTEL_G33_IG, 0, "G33",
2153 NULL, &intel_g33_driver },
2154 { PCI_DEVICE_ID_INTEL_Q35_HB, PCI_DEVICE_ID_INTEL_Q35_IG, 0, "Q35",
2155 NULL, &intel_g33_driver },
2156 { PCI_DEVICE_ID_INTEL_Q33_HB, PCI_DEVICE_ID_INTEL_Q33_IG, 0, "Q33",
2157 NULL, &intel_g33_driver },
2158 { PCI_DEVICE_ID_INTEL_GM45_HB, PCI_DEVICE_ID_INTEL_GM45_IG, 0,
2159 "Mobile Intel? GM45 Express", NULL, &intel_i965_driver },
2160 { PCI_DEVICE_ID_INTEL_IGD_E_HB, PCI_DEVICE_ID_INTEL_IGD_E_IG, 0,
2161 "Intel Integrated Graphics Device", NULL, &intel_i965_driver },
2162 { PCI_DEVICE_ID_INTEL_Q45_HB, PCI_DEVICE_ID_INTEL_Q45_IG, 0,
2163 "Q45/Q43", NULL, &intel_i965_driver },
2164 { PCI_DEVICE_ID_INTEL_G45_HB, PCI_DEVICE_ID_INTEL_G45_IG, 0,
2165 "G45/G43", NULL, &intel_i965_driver },
2166 { 0, 0, 0, NULL, NULL, NULL }
2167 };
2168
2169 static int __devinit agp_intel_probe(struct pci_dev *pdev,
2170 const struct pci_device_id *ent)
2171 {
2172 struct agp_bridge_data *bridge;
2173 u8 cap_ptr = 0;
2174 struct resource *r;
2175 int i;
2176
2177 cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP);
2178
2179 bridge = agp_alloc_bridge();
2180 if (!bridge)
2181 return -ENOMEM;
2182
2183 for (i = 0; intel_agp_chipsets[i].name != NULL; i++) {
2184 /* In case that multiple models of gfx chip may
2185 stand on same host bridge type, this can be
2186 sure we detect the right IGD. */
2187 if (pdev->device == intel_agp_chipsets[i].chip_id) {
2188 if ((intel_agp_chipsets[i].gmch_chip_id != 0) &&
2189 find_gmch(intel_agp_chipsets[i].gmch_chip_id)) {
2190 bridge->driver =
2191 intel_agp_chipsets[i].gmch_driver;
2192 break;
2193 } else if (intel_agp_chipsets[i].multi_gmch_chip) {
2194 continue;
2195 } else {
2196 bridge->driver = intel_agp_chipsets[i].driver;
2197 break;
2198 }
2199 }
2200 }
2201
2202 if (intel_agp_chipsets[i].name == NULL) {
2203 if (cap_ptr)
2204 dev_warn(&pdev->dev, "unsupported Intel chipset [%04x/%04x]\n",
2205 pdev->vendor, pdev->device);
2206 agp_put_bridge(bridge);
2207 return -ENODEV;
2208 }
2209
2210 if (bridge->driver == NULL) {
2211 /* bridge has no AGP and no IGD detected */
2212 if (cap_ptr)
2213 dev_warn(&pdev->dev, "can't find bridge device (chip_id: %04x)\n",
2214 intel_agp_chipsets[i].gmch_chip_id);
2215 agp_put_bridge(bridge);
2216 return -ENODEV;
2217 }
2218
2219 bridge->dev = pdev;
2220 bridge->capndx = cap_ptr;
2221 bridge->dev_private_data = &intel_private;
2222
2223 dev_info(&pdev->dev, "Intel %s Chipset\n", intel_agp_chipsets[i].name);
2224
2225 /*
2226 * The following fixes the case where the BIOS has "forgotten" to
2227 * provide an address range for the GART.
2228 * 20030610 - hamish@zot.org
2229 */
2230 r = &pdev->resource[0];
2231 if (!r->start && r->end) {
2232 if (pci_assign_resource(pdev, 0)) {
2233 dev_err(&pdev->dev, "can't assign resource 0\n");
2234 agp_put_bridge(bridge);
2235 return -ENODEV;
2236 }
2237 }
2238
2239 /*
2240 * If the device has not been properly setup, the following will catch
2241 * the problem and should stop the system from crashing.
2242 * 20030610 - hamish@zot.org
2243 */
2244 if (pci_enable_device(pdev)) {
2245 dev_err(&pdev->dev, "can't enable PCI device\n");
2246 agp_put_bridge(bridge);
2247 return -ENODEV;
2248 }
2249
2250 /* Fill in the mode register */
2251 if (cap_ptr) {
2252 pci_read_config_dword(pdev,
2253 bridge->capndx+PCI_AGP_STATUS,
2254 &bridge->mode);
2255 }
2256
2257 pci_set_drvdata(pdev, bridge);
2258 return agp_add_bridge(bridge);
2259 }
2260
2261 static void __devexit agp_intel_remove(struct pci_dev *pdev)
2262 {
2263 struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
2264
2265 agp_remove_bridge(bridge);
2266
2267 if (intel_private.pcidev)
2268 pci_dev_put(intel_private.pcidev);
2269
2270 agp_put_bridge(bridge);
2271 }
2272
2273 #ifdef CONFIG_PM
2274 static int agp_intel_resume(struct pci_dev *pdev)
2275 {
2276 struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
2277 int ret_val;
2278
2279 pci_restore_state(pdev);
2280
2281 /* We should restore our graphics device's config space,
2282 * as host bridge (00:00) resumes before graphics device (02:00),
2283 * then our access to its pci space can work right.
2284 */
2285 if (intel_private.pcidev)
2286 pci_restore_state(intel_private.pcidev);
2287
2288 if (bridge->driver == &intel_generic_driver)
2289 intel_configure();
2290 else if (bridge->driver == &intel_850_driver)
2291 intel_850_configure();
2292 else if (bridge->driver == &intel_845_driver)
2293 intel_845_configure();
2294 else if (bridge->driver == &intel_830mp_driver)
2295 intel_830mp_configure();
2296 else if (bridge->driver == &intel_915_driver)
2297 intel_i915_configure();
2298 else if (bridge->driver == &intel_830_driver)
2299 intel_i830_configure();
2300 else if (bridge->driver == &intel_810_driver)
2301 intel_i810_configure();
2302 else if (bridge->driver == &intel_i965_driver)
2303 intel_i915_configure();
2304
2305 ret_val = agp_rebind_memory();
2306 if (ret_val != 0)
2307 return ret_val;
2308
2309 return 0;
2310 }
2311 #endif
2312
2313 static struct pci_device_id agp_intel_pci_table[] = {
2314 #define ID(x) \
2315 { \
2316 .class = (PCI_CLASS_BRIDGE_HOST << 8), \
2317 .class_mask = ~0, \
2318 .vendor = PCI_VENDOR_ID_INTEL, \
2319 .device = x, \
2320 .subvendor = PCI_ANY_ID, \
2321 .subdevice = PCI_ANY_ID, \
2322 }
2323 ID(PCI_DEVICE_ID_INTEL_82443LX_0),
2324 ID(PCI_DEVICE_ID_INTEL_82443BX_0),
2325 ID(PCI_DEVICE_ID_INTEL_82443GX_0),
2326 ID(PCI_DEVICE_ID_INTEL_82810_MC1),
2327 ID(PCI_DEVICE_ID_INTEL_82810_MC3),
2328 ID(PCI_DEVICE_ID_INTEL_82810E_MC),
2329 ID(PCI_DEVICE_ID_INTEL_82815_MC),
2330 ID(PCI_DEVICE_ID_INTEL_82820_HB),
2331 ID(PCI_DEVICE_ID_INTEL_82820_UP_HB),
2332 ID(PCI_DEVICE_ID_INTEL_82830_HB),
2333 ID(PCI_DEVICE_ID_INTEL_82840_HB),
2334 ID(PCI_DEVICE_ID_INTEL_82845_HB),
2335 ID(PCI_DEVICE_ID_INTEL_82845G_HB),
2336 ID(PCI_DEVICE_ID_INTEL_82850_HB),
2337 ID(PCI_DEVICE_ID_INTEL_82855PM_HB),
2338 ID(PCI_DEVICE_ID_INTEL_82855GM_HB),
2339 ID(PCI_DEVICE_ID_INTEL_82860_HB),
2340 ID(PCI_DEVICE_ID_INTEL_82865_HB),
2341 ID(PCI_DEVICE_ID_INTEL_82875_HB),
2342 ID(PCI_DEVICE_ID_INTEL_7505_0),
2343 ID(PCI_DEVICE_ID_INTEL_7205_0),
2344 ID(PCI_DEVICE_ID_INTEL_E7221_HB),
2345 ID(PCI_DEVICE_ID_INTEL_82915G_HB),
2346 ID(PCI_DEVICE_ID_INTEL_82915GM_HB),
2347 ID(PCI_DEVICE_ID_INTEL_82945G_HB),
2348 ID(PCI_DEVICE_ID_INTEL_82945GM_HB),
2349 ID(PCI_DEVICE_ID_INTEL_82945GME_HB),
2350 ID(PCI_DEVICE_ID_INTEL_82946GZ_HB),
2351 ID(PCI_DEVICE_ID_INTEL_82G35_HB),
2352 ID(PCI_DEVICE_ID_INTEL_82965Q_HB),
2353 ID(PCI_DEVICE_ID_INTEL_82965G_HB),
2354 ID(PCI_DEVICE_ID_INTEL_82965GM_HB),
2355 ID(PCI_DEVICE_ID_INTEL_82965GME_HB),
2356 ID(PCI_DEVICE_ID_INTEL_G33_HB),
2357 ID(PCI_DEVICE_ID_INTEL_Q35_HB),
2358 ID(PCI_DEVICE_ID_INTEL_Q33_HB),
2359 ID(PCI_DEVICE_ID_INTEL_GM45_HB),
2360 ID(PCI_DEVICE_ID_INTEL_IGD_E_HB),
2361 ID(PCI_DEVICE_ID_INTEL_Q45_HB),
2362 ID(PCI_DEVICE_ID_INTEL_G45_HB),
2363 { }
2364 };
2365
2366 MODULE_DEVICE_TABLE(pci, agp_intel_pci_table);
2367
2368 static struct pci_driver agp_intel_pci_driver = {
2369 .name = "agpgart-intel",
2370 .id_table = agp_intel_pci_table,
2371 .probe = agp_intel_probe,
2372 .remove = __devexit_p(agp_intel_remove),
2373 #ifdef CONFIG_PM
2374 .resume = agp_intel_resume,
2375 #endif
2376 };
2377
2378 static int __init agp_intel_init(void)
2379 {
2380 if (agp_off)
2381 return -EINVAL;
2382 return pci_register_driver(&agp_intel_pci_driver);
2383 }
2384
2385 static void __exit agp_intel_cleanup(void)
2386 {
2387 pci_unregister_driver(&agp_intel_pci_driver);
2388 }
2389
2390 module_init(agp_intel_init);
2391 module_exit(agp_intel_cleanup);
2392
2393 MODULE_AUTHOR("Dave Jones <davej@redhat.com>");
2394 MODULE_LICENSE("GPL and additional rights");
Stable & featurefull patchset based on Linus's git branch