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[AGPGART] Remove pointless initialisation in intel-agp
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / char / agp / intel-agp.c
blob61ac3809f997cbbb9932a8eb3f0428d63195a2d4
1 /*
2 * Intel AGPGART routines.
3 */
4
5 /*
6 * Intel(R) 855GM/852GM and 865G support added by David Dawes
7 * <dawes@tungstengraphics.com>.
8 *
9 * Intel(R) 915G/915GM support added by Alan Hourihane
10 * <alanh@tungstengraphics.com>.
11 */
12
13 #include <linux/module.h>
14 #include <linux/pci.h>
15 #include <linux/init.h>
16 #include <linux/pagemap.h>
17 #include <linux/agp_backend.h>
18 #include "agp.h"
19
20 /* Intel 815 register */
21 #define INTEL_815_APCONT 0x51
22 #define INTEL_815_ATTBASE_MASK ~0x1FFFFFFF
23
24 /* Intel i820 registers */
25 #define INTEL_I820_RDCR 0x51
26 #define INTEL_I820_ERRSTS 0xc8
27
28 /* Intel i840 registers */
29 #define INTEL_I840_MCHCFG 0x50
30 #define INTEL_I840_ERRSTS 0xc8
31
32 /* Intel i850 registers */
33 #define INTEL_I850_MCHCFG 0x50
34 #define INTEL_I850_ERRSTS 0xc8
35
36 /* intel 915G registers */
37 #define I915_GMADDR 0x18
38 #define I915_MMADDR 0x10
39 #define I915_PTEADDR 0x1C
40 #define I915_GMCH_GMS_STOLEN_48M (0x6 << 4)
41 #define I915_GMCH_GMS_STOLEN_64M (0x7 << 4)
42
43
44 /* Intel 7505 registers */
45 #define INTEL_I7505_APSIZE 0x74
46 #define INTEL_I7505_NCAPID 0x60
47 #define INTEL_I7505_NISTAT 0x6c
48 #define INTEL_I7505_ATTBASE 0x78
49 #define INTEL_I7505_ERRSTS 0x42
50 #define INTEL_I7505_AGPCTRL 0x70
51 #define INTEL_I7505_MCHCFG 0x50
52
53 static struct aper_size_info_fixed intel_i810_sizes[] =
54 {
55 {64, 16384, 4},
56 /* The 32M mode still requires a 64k gatt */
57 {32, 8192, 4}
58 };
59
60 #define AGP_DCACHE_MEMORY 1
61 #define AGP_PHYS_MEMORY 2
62
63 static struct gatt_mask intel_i810_masks[] =
64 {
65 {.mask = I810_PTE_VALID, .type = 0},
66 {.mask = (I810_PTE_VALID | I810_PTE_LOCAL), .type = AGP_DCACHE_MEMORY},
67 {.mask = I810_PTE_VALID, .type = 0}
68 };
69
70 static struct _intel_i810_private {
71 struct pci_dev *i810_dev; /* device one */
72 volatile u8 __iomem *registers;
73 int num_dcache_entries;
74 } intel_i810_private;
75
76 static int intel_i810_fetch_size(void)
77 {
78 u32 smram_miscc;
79 struct aper_size_info_fixed *values;
80
81 pci_read_config_dword(agp_bridge->dev, I810_SMRAM_MISCC, &smram_miscc);
82 values = A_SIZE_FIX(agp_bridge->driver->aperture_sizes);
83
84 if ((smram_miscc & I810_GMS) == I810_GMS_DISABLE) {
85 printk(KERN_WARNING PFX "i810 is disabled\n");
86 return 0;
87 }
88 if ((smram_miscc & I810_GFX_MEM_WIN_SIZE) == I810_GFX_MEM_WIN_32M) {
89 agp_bridge->previous_size =
90 agp_bridge->current_size = (void *) (values + 1);
91 agp_bridge->aperture_size_idx = 1;
92 return values[1].size;
93 } else {
94 agp_bridge->previous_size =
95 agp_bridge->current_size = (void *) (values);
96 agp_bridge->aperture_size_idx = 0;
97 return values[0].size;
98 }
99
100 return 0;
101 }
102
103 static int intel_i810_configure(void)
104 {
105 struct aper_size_info_fixed *current_size;
106 u32 temp;
107 int i;
108
109 current_size = A_SIZE_FIX(agp_bridge->current_size);
110
111 pci_read_config_dword(intel_i810_private.i810_dev, I810_MMADDR, &temp);
112 temp &= 0xfff80000;
113
114 intel_i810_private.registers = ioremap(temp, 128 * 4096);
115 if (!intel_i810_private.registers) {
116 printk(KERN_ERR PFX "Unable to remap memory.\n");
117 return -ENOMEM;
118 }
119
120 if ((readl(intel_i810_private.registers+I810_DRAM_CTL)
121 & I810_DRAM_ROW_0) == I810_DRAM_ROW_0_SDRAM) {
122 /* This will need to be dynamically assigned */
123 printk(KERN_INFO PFX "detected 4MB dedicated video ram.\n");
124 intel_i810_private.num_dcache_entries = 1024;
125 }
126 pci_read_config_dword(intel_i810_private.i810_dev, I810_GMADDR, &temp);
127 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
128 writel(agp_bridge->gatt_bus_addr | I810_PGETBL_ENABLED, intel_i810_private.registers+I810_PGETBL_CTL);
129 readl(intel_i810_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
130
131 if (agp_bridge->driver->needs_scratch_page) {
132 for (i = 0; i < current_size->num_entries; i++) {
133 writel(agp_bridge->scratch_page, intel_i810_private.registers+I810_PTE_BASE+(i*4));
134 readl(intel_i810_private.registers+I810_PTE_BASE+(i*4)); /* PCI posting. */
135 }
136 }
137 global_cache_flush();
138 return 0;
139 }
140
141 static void intel_i810_cleanup(void)
142 {
143 writel(0, intel_i810_private.registers+I810_PGETBL_CTL);
144 readl(intel_i810_private.registers); /* PCI Posting. */
145 iounmap(intel_i810_private.registers);
146 }
147
148 static void intel_i810_tlbflush(struct agp_memory *mem)
149 {
150 return;
151 }
152
153 static void intel_i810_agp_enable(struct agp_bridge_data *bridge, u32 mode)
154 {
155 return;
156 }
157
158 /* Exists to support ARGB cursors */
159 static void *i8xx_alloc_pages(void)
160 {
161 struct page * page;
162
163 page = alloc_pages(GFP_KERNEL, 2);
164 if (page == NULL)
165 return NULL;
166
167 if (change_page_attr(page, 4, PAGE_KERNEL_NOCACHE) < 0) {
168 global_flush_tlb();
169 __free_page(page);
170 return NULL;
171 }
172 global_flush_tlb();
173 get_page(page);
174 SetPageLocked(page);
175 atomic_inc(&agp_bridge->current_memory_agp);
176 return page_address(page);
177 }
178
179 static void i8xx_destroy_pages(void *addr)
180 {
181 struct page *page;
182
183 if (addr == NULL)
184 return;
185
186 page = virt_to_page(addr);
187 change_page_attr(page, 4, PAGE_KERNEL);
188 global_flush_tlb();
189 put_page(page);
190 unlock_page(page);
191 free_pages((unsigned long)addr, 2);
192 atomic_dec(&agp_bridge->current_memory_agp);
193 }
194
195 static int intel_i810_insert_entries(struct agp_memory *mem, off_t pg_start,
196 int type)
197 {
198 int i, j, num_entries;
199 void *temp;
200
201 temp = agp_bridge->current_size;
202 num_entries = A_SIZE_FIX(temp)->num_entries;
203
204 if ((pg_start + mem->page_count) > num_entries)
205 return -EINVAL;
206
207 for (j = pg_start; j < (pg_start + mem->page_count); j++) {
208 if (!PGE_EMPTY(agp_bridge, readl(agp_bridge->gatt_table+j)))
209 return -EBUSY;
210 }
211
212 if (type != 0 || mem->type != 0) {
213 if ((type == AGP_DCACHE_MEMORY) && (mem->type == AGP_DCACHE_MEMORY)) {
214 /* special insert */
215 global_cache_flush();
216 for (i = pg_start; i < (pg_start + mem->page_count); i++) {
217 writel((i*4096)|I810_PTE_LOCAL|I810_PTE_VALID, intel_i810_private.registers+I810_PTE_BASE+(i*4));
218 readl(intel_i810_private.registers+I810_PTE_BASE+(i*4)); /* PCI Posting. */
219 }
220 global_cache_flush();
221 agp_bridge->driver->tlb_flush(mem);
222 return 0;
223 }
224 if ((type == AGP_PHYS_MEMORY) && (mem->type == AGP_PHYS_MEMORY))
225 goto insert;
226 return -EINVAL;
227 }
228
229 insert:
230 global_cache_flush();
231 for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
232 writel(agp_bridge->driver->mask_memory(agp_bridge,
233 mem->memory[i], mem->type),
234 intel_i810_private.registers+I810_PTE_BASE+(j*4));
235 readl(intel_i810_private.registers+I810_PTE_BASE+(j*4)); /* PCI Posting. */
236 }
237 global_cache_flush();
238
239 agp_bridge->driver->tlb_flush(mem);
240 return 0;
241 }
242
243 static int intel_i810_remove_entries(struct agp_memory *mem, off_t pg_start,
244 int type)
245 {
246 int i;
247
248 for (i = pg_start; i < (mem->page_count + pg_start); i++) {
249 writel(agp_bridge->scratch_page, intel_i810_private.registers+I810_PTE_BASE+(i*4));
250 readl(intel_i810_private.registers+I810_PTE_BASE+(i*4)); /* PCI Posting. */
251 }
252
253 global_cache_flush();
254 agp_bridge->driver->tlb_flush(mem);
255 return 0;
256 }
257
258 /*
259 * The i810/i830 requires a physical address to program its mouse
260 * pointer into hardware.
261 * However the Xserver still writes to it through the agp aperture.
262 */
263 static struct agp_memory *alloc_agpphysmem_i8xx(size_t pg_count, int type)
264 {
265 struct agp_memory *new;
266 void *addr;
267
268 if (pg_count != 1 && pg_count != 4)
269 return NULL;
270
271 switch (pg_count) {
272 case 1: addr = agp_bridge->driver->agp_alloc_page(agp_bridge);
273 global_flush_tlb();
274 break;
275 case 4:
276 /* kludge to get 4 physical pages for ARGB cursor */
277 addr = i8xx_alloc_pages();
278 break;
279 default:
280 return NULL;
281 }
282
283 if (addr == NULL)
284 return NULL;
285
286 new = agp_create_memory(pg_count);
287 if (new == NULL)
288 return NULL;
289
290 new->memory[0] = virt_to_gart(addr);
291 if (pg_count == 4) {
292 /* kludge to get 4 physical pages for ARGB cursor */
293 new->memory[1] = new->memory[0] + PAGE_SIZE;
294 new->memory[2] = new->memory[1] + PAGE_SIZE;
295 new->memory[3] = new->memory[2] + PAGE_SIZE;
296 }
297 new->page_count = pg_count;
298 new->num_scratch_pages = pg_count;
299 new->type = AGP_PHYS_MEMORY;
300 new->physical = new->memory[0];
301 return new;
302 }
303
304 static struct agp_memory *intel_i810_alloc_by_type(size_t pg_count, int type)
305 {
306 struct agp_memory *new;
307
308 if (type == AGP_DCACHE_MEMORY) {
309 if (pg_count != intel_i810_private.num_dcache_entries)
310 return NULL;
311
312 new = agp_create_memory(1);
313 if (new == NULL)
314 return NULL;
315
316 new->type = AGP_DCACHE_MEMORY;
317 new->page_count = pg_count;
318 new->num_scratch_pages = 0;
319 vfree(new->memory);
320 return new;
321 }
322 if (type == AGP_PHYS_MEMORY)
323 return alloc_agpphysmem_i8xx(pg_count, type);
324
325 return NULL;
326 }
327
328 static void intel_i810_free_by_type(struct agp_memory *curr)
329 {
330 agp_free_key(curr->key);
331 if (curr->type == AGP_PHYS_MEMORY) {
332 if (curr->page_count == 4)
333 i8xx_destroy_pages(gart_to_virt(curr->memory[0]));
334 else {
335 agp_bridge->driver->agp_destroy_page(
336 gart_to_virt(curr->memory[0]));
337 global_flush_tlb();
338 }
339 vfree(curr->memory);
340 }
341 kfree(curr);
342 }
343
344 static unsigned long intel_i810_mask_memory(struct agp_bridge_data *bridge,
345 unsigned long addr, int type)
346 {
347 /* Type checking must be done elsewhere */
348 return addr | bridge->driver->masks[type].mask;
349 }
350
351 static struct aper_size_info_fixed intel_i830_sizes[] =
352 {
353 {128, 32768, 5},
354 /* The 64M mode still requires a 128k gatt */
355 {64, 16384, 5},
356 {256, 65536, 6},
357 };
358
359 static struct _intel_i830_private {
360 struct pci_dev *i830_dev; /* device one */
361 volatile u8 __iomem *registers;
362 volatile u32 __iomem *gtt; /* I915G */
363 int gtt_entries;
364 } intel_i830_private;
365
366 static void intel_i830_init_gtt_entries(void)
367 {
368 u16 gmch_ctrl;
369 int gtt_entries;
370 u8 rdct;
371 int local = 0;
372 static const int ddt[4] = { 0, 16, 32, 64 };
373 int size;
374
375 pci_read_config_word(agp_bridge->dev,I830_GMCH_CTRL,&gmch_ctrl);
376
377 /* We obtain the size of the GTT, which is also stored (for some
378 * reason) at the top of stolen memory. Then we add 4KB to that
379 * for the video BIOS popup, which is also stored in there. */
380 size = agp_bridge->driver->fetch_size() + 4;
381
382 if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82830_HB ||
383 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) {
384 switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
385 case I830_GMCH_GMS_STOLEN_512:
386 gtt_entries = KB(512) - KB(size);
387 break;
388 case I830_GMCH_GMS_STOLEN_1024:
389 gtt_entries = MB(1) - KB(size);
390 break;
391 case I830_GMCH_GMS_STOLEN_8192:
392 gtt_entries = MB(8) - KB(size);
393 break;
394 case I830_GMCH_GMS_LOCAL:
395 rdct = readb(intel_i830_private.registers+I830_RDRAM_CHANNEL_TYPE);
396 gtt_entries = (I830_RDRAM_ND(rdct) + 1) *
397 MB(ddt[I830_RDRAM_DDT(rdct)]);
398 local = 1;
399 break;
400 default:
401 gtt_entries = 0;
402 break;
403 }
404 } else {
405 switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
406 case I855_GMCH_GMS_STOLEN_1M:
407 gtt_entries = MB(1) - KB(size);
408 break;
409 case I855_GMCH_GMS_STOLEN_4M:
410 gtt_entries = MB(4) - KB(size);
411 break;
412 case I855_GMCH_GMS_STOLEN_8M:
413 gtt_entries = MB(8) - KB(size);
414 break;
415 case I855_GMCH_GMS_STOLEN_16M:
416 gtt_entries = MB(16) - KB(size);
417 break;
418 case I855_GMCH_GMS_STOLEN_32M:
419 gtt_entries = MB(32) - KB(size);
420 break;
421 case I915_GMCH_GMS_STOLEN_48M:
422 /* Check it's really I915G */
423 if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB ||
424 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB ||
425 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB ||
426 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB)
427 gtt_entries = MB(48) - KB(size);
428 else
429 gtt_entries = 0;
430 break;
431 case I915_GMCH_GMS_STOLEN_64M:
432 /* Check it's really I915G */
433 if (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915G_HB ||
434 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82915GM_HB ||
435 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945G_HB ||
436 agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_82945GM_HB)
437 gtt_entries = MB(64) - KB(size);
438 else
439 gtt_entries = 0;
440 default:
441 gtt_entries = 0;
442 break;
443 }
444 }
445 if (gtt_entries > 0)
446 printk(KERN_INFO PFX "Detected %dK %s memory.\n",
447 gtt_entries / KB(1), local ? "local" : "stolen");
448 else
449 printk(KERN_INFO PFX
450 "No pre-allocated video memory detected.\n");
451 gtt_entries /= KB(4);
452
453 intel_i830_private.gtt_entries = gtt_entries;
454 }
455
456 /* The intel i830 automatically initializes the agp aperture during POST.
457 * Use the memory already set aside for in the GTT.
458 */
459 static int intel_i830_create_gatt_table(struct agp_bridge_data *bridge)
460 {
461 int page_order;
462 struct aper_size_info_fixed *size;
463 int num_entries;
464 u32 temp;
465
466 size = agp_bridge->current_size;
467 page_order = size->page_order;
468 num_entries = size->num_entries;
469 agp_bridge->gatt_table_real = NULL;
470
471 pci_read_config_dword(intel_i830_private.i830_dev,I810_MMADDR,&temp);
472 temp &= 0xfff80000;
473
474 intel_i830_private.registers = ioremap(temp,128 * 4096);
475 if (!intel_i830_private.registers)
476 return -ENOMEM;
477
478 temp = readl(intel_i830_private.registers+I810_PGETBL_CTL) & 0xfffff000;
479 global_cache_flush(); /* FIXME: ?? */
480
481 /* we have to call this as early as possible after the MMIO base address is known */
482 intel_i830_init_gtt_entries();
483
484 agp_bridge->gatt_table = NULL;
485
486 agp_bridge->gatt_bus_addr = temp;
487
488 return 0;
489 }
490
491 /* Return the gatt table to a sane state. Use the top of stolen
492 * memory for the GTT.
493 */
494 static int intel_i830_free_gatt_table(struct agp_bridge_data *bridge)
495 {
496 return 0;
497 }
498
499 static int intel_i830_fetch_size(void)
500 {
501 u16 gmch_ctrl;
502 struct aper_size_info_fixed *values;
503
504 values = A_SIZE_FIX(agp_bridge->driver->aperture_sizes);
505
506 if (agp_bridge->dev->device != PCI_DEVICE_ID_INTEL_82830_HB &&
507 agp_bridge->dev->device != PCI_DEVICE_ID_INTEL_82845G_HB) {
508 /* 855GM/852GM/865G has 128MB aperture size */
509 agp_bridge->previous_size = agp_bridge->current_size = (void *) values;
510 agp_bridge->aperture_size_idx = 0;
511 return values[0].size;
512 }
513
514 pci_read_config_word(agp_bridge->dev,I830_GMCH_CTRL,&gmch_ctrl);
515
516 if ((gmch_ctrl & I830_GMCH_MEM_MASK) == I830_GMCH_MEM_128M) {
517 agp_bridge->previous_size = agp_bridge->current_size = (void *) values;
518 agp_bridge->aperture_size_idx = 0;
519 return values[0].size;
520 } else {
521 agp_bridge->previous_size = agp_bridge->current_size = (void *) (values + 1);
522 agp_bridge->aperture_size_idx = 1;
523 return values[1].size;
524 }
525
526 return 0;
527 }
528
529 static int intel_i830_configure(void)
530 {
531 struct aper_size_info_fixed *current_size;
532 u32 temp;
533 u16 gmch_ctrl;
534 int i;
535
536 current_size = A_SIZE_FIX(agp_bridge->current_size);
537
538 pci_read_config_dword(intel_i830_private.i830_dev,I810_GMADDR,&temp);
539 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
540
541 pci_read_config_word(agp_bridge->dev,I830_GMCH_CTRL,&gmch_ctrl);
542 gmch_ctrl |= I830_GMCH_ENABLED;
543 pci_write_config_word(agp_bridge->dev,I830_GMCH_CTRL,gmch_ctrl);
544
545 writel(agp_bridge->gatt_bus_addr|I810_PGETBL_ENABLED, intel_i830_private.registers+I810_PGETBL_CTL);
546 readl(intel_i830_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
547
548 if (agp_bridge->driver->needs_scratch_page) {
549 for (i = intel_i830_private.gtt_entries; i < current_size->num_entries; i++) {
550 writel(agp_bridge->scratch_page, intel_i830_private.registers+I810_PTE_BASE+(i*4));
551 readl(intel_i830_private.registers+I810_PTE_BASE+(i*4)); /* PCI Posting. */
552 }
553 }
554
555 global_cache_flush();
556 return 0;
557 }
558
559 static void intel_i830_cleanup(void)
560 {
561 iounmap(intel_i830_private.registers);
562 }
563
564 static int intel_i830_insert_entries(struct agp_memory *mem,off_t pg_start, int type)
565 {
566 int i,j,num_entries;
567 void *temp;
568
569 temp = agp_bridge->current_size;
570 num_entries = A_SIZE_FIX(temp)->num_entries;
571
572 if (pg_start < intel_i830_private.gtt_entries) {
573 printk (KERN_DEBUG PFX "pg_start == 0x%.8lx,intel_i830_private.gtt_entries == 0x%.8x\n",
574 pg_start,intel_i830_private.gtt_entries);
575
576 printk (KERN_INFO PFX "Trying to insert into local/stolen memory\n");
577 return -EINVAL;
578 }
579
580 if ((pg_start + mem->page_count) > num_entries)
581 return -EINVAL;
582
583 /* The i830 can't check the GTT for entries since its read only,
584 * depend on the caller to make the correct offset decisions.
585 */
586
587 if ((type != 0 && type != AGP_PHYS_MEMORY) ||
588 (mem->type != 0 && mem->type != AGP_PHYS_MEMORY))
589 return -EINVAL;
590
591 global_cache_flush(); /* FIXME: Necessary ?*/
592
593 for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
594 writel(agp_bridge->driver->mask_memory(agp_bridge,
595 mem->memory[i], mem->type),
596 intel_i830_private.registers+I810_PTE_BASE+(j*4));
597 readl(intel_i830_private.registers+I810_PTE_BASE+(j*4)); /* PCI Posting. */
598 }
599
600 global_cache_flush();
601 agp_bridge->driver->tlb_flush(mem);
602 return 0;
603 }
604
605 static int intel_i830_remove_entries(struct agp_memory *mem,off_t pg_start,
606 int type)
607 {
608 int i;
609
610 global_cache_flush();
611
612 if (pg_start < intel_i830_private.gtt_entries) {
613 printk (KERN_INFO PFX "Trying to disable local/stolen memory\n");
614 return -EINVAL;
615 }
616
617 for (i = pg_start; i < (mem->page_count + pg_start); i++) {
618 writel(agp_bridge->scratch_page, intel_i830_private.registers+I810_PTE_BASE+(i*4));
619 readl(intel_i830_private.registers+I810_PTE_BASE+(i*4)); /* PCI Posting. */
620 }
621
622 global_cache_flush();
623 agp_bridge->driver->tlb_flush(mem);
624 return 0;
625 }
626
627 static struct agp_memory *intel_i830_alloc_by_type(size_t pg_count,int type)
628 {
629 if (type == AGP_PHYS_MEMORY)
630 return alloc_agpphysmem_i8xx(pg_count, type);
631
632 /* always return NULL for other allocation types for now */
633 return NULL;
634 }
635
636 static int intel_i915_configure(void)
637 {
638 struct aper_size_info_fixed *current_size;
639 u32 temp;
640 u16 gmch_ctrl;
641 int i;
642
643 current_size = A_SIZE_FIX(agp_bridge->current_size);
644
645 pci_read_config_dword(intel_i830_private.i830_dev, I915_GMADDR, &temp);
646
647 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
648
649 pci_read_config_word(agp_bridge->dev,I830_GMCH_CTRL,&gmch_ctrl);
650 gmch_ctrl |= I830_GMCH_ENABLED;
651 pci_write_config_word(agp_bridge->dev,I830_GMCH_CTRL,gmch_ctrl);
652
653 writel(agp_bridge->gatt_bus_addr|I810_PGETBL_ENABLED, intel_i830_private.registers+I810_PGETBL_CTL);
654 readl(intel_i830_private.registers+I810_PGETBL_CTL); /* PCI Posting. */
655
656 if (agp_bridge->driver->needs_scratch_page) {
657 for (i = intel_i830_private.gtt_entries; i < current_size->num_entries; i++) {
658 writel(agp_bridge->scratch_page, intel_i830_private.gtt+i);
659 readl(intel_i830_private.gtt+i); /* PCI Posting. */
660 }
661 }
662
663 global_cache_flush();
664 return 0;
665 }
666
667 static void intel_i915_cleanup(void)
668 {
669 iounmap(intel_i830_private.gtt);
670 iounmap(intel_i830_private.registers);
671 }
672
673 static int intel_i915_insert_entries(struct agp_memory *mem,off_t pg_start,
674 int type)
675 {
676 int i,j,num_entries;
677 void *temp;
678
679 temp = agp_bridge->current_size;
680 num_entries = A_SIZE_FIX(temp)->num_entries;
681
682 if (pg_start < intel_i830_private.gtt_entries) {
683 printk (KERN_DEBUG PFX "pg_start == 0x%.8lx,intel_i830_private.gtt_entries == 0x%.8x\n",
684 pg_start,intel_i830_private.gtt_entries);
685
686 printk (KERN_INFO PFX "Trying to insert into local/stolen memory\n");
687 return -EINVAL;
688 }
689
690 if ((pg_start + mem->page_count) > num_entries)
691 return -EINVAL;
692
693 /* The i830 can't check the GTT for entries since its read only,
694 * depend on the caller to make the correct offset decisions.
695 */
696
697 if ((type != 0 && type != AGP_PHYS_MEMORY) ||
698 (mem->type != 0 && mem->type != AGP_PHYS_MEMORY))
699 return -EINVAL;
700
701 global_cache_flush();
702
703 for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
704 writel(agp_bridge->driver->mask_memory(agp_bridge,
705 mem->memory[i], mem->type), intel_i830_private.gtt+j);
706 readl(intel_i830_private.gtt+j); /* PCI Posting. */
707 }
708
709 global_cache_flush();
710 agp_bridge->driver->tlb_flush(mem);
711 return 0;
712 }
713
714 static int intel_i915_remove_entries(struct agp_memory *mem,off_t pg_start,
715 int type)
716 {
717 int i;
718
719 global_cache_flush();
720
721 if (pg_start < intel_i830_private.gtt_entries) {
722 printk (KERN_INFO PFX "Trying to disable local/stolen memory\n");
723 return -EINVAL;
724 }
725
726 for (i = pg_start; i < (mem->page_count + pg_start); i++) {
727 writel(agp_bridge->scratch_page, intel_i830_private.gtt+i);
728 readl(intel_i830_private.gtt+i);
729 }
730
731 global_cache_flush();
732 agp_bridge->driver->tlb_flush(mem);
733 return 0;
734 }
735
736 static int intel_i915_fetch_size(void)
737 {
738 struct aper_size_info_fixed *values;
739 u32 temp, offset;
740
741 #define I915_256MB_ADDRESS_MASK (1<<27)
742
743 values = A_SIZE_FIX(agp_bridge->driver->aperture_sizes);
744
745 pci_read_config_dword(intel_i830_private.i830_dev, I915_GMADDR, &temp);
746 if (temp & I915_256MB_ADDRESS_MASK)
747 offset = 0; /* 128MB aperture */
748 else
749 offset = 2; /* 256MB aperture */
750 agp_bridge->previous_size = agp_bridge->current_size = (void *)(values + offset);
751 return values[offset].size;
752 }
753
754 /* The intel i915 automatically initializes the agp aperture during POST.
755 * Use the memory already set aside for in the GTT.
756 */
757 static int intel_i915_create_gatt_table(struct agp_bridge_data *bridge)
758 {
759 int page_order;
760 struct aper_size_info_fixed *size;
761 int num_entries;
762 u32 temp, temp2;
763
764 size = agp_bridge->current_size;
765 page_order = size->page_order;
766 num_entries = size->num_entries;
767 agp_bridge->gatt_table_real = NULL;
768
769 pci_read_config_dword(intel_i830_private.i830_dev, I915_MMADDR, &temp);
770 pci_read_config_dword(intel_i830_private.i830_dev, I915_PTEADDR,&temp2);
771
772 intel_i830_private.gtt = ioremap(temp2, 256 * 1024);
773 if (!intel_i830_private.gtt)
774 return -ENOMEM;
775
776 temp &= 0xfff80000;
777
778 intel_i830_private.registers = ioremap(temp,128 * 4096);
779 if (!intel_i830_private.registers)
780 return -ENOMEM;
781
782 temp = readl(intel_i830_private.registers+I810_PGETBL_CTL) & 0xfffff000;
783 global_cache_flush(); /* FIXME: ? */
784
785 /* we have to call this as early as possible after the MMIO base address is known */
786 intel_i830_init_gtt_entries();
787
788 agp_bridge->gatt_table = NULL;
789
790 agp_bridge->gatt_bus_addr = temp;
791
792 return 0;
793 }
794
795 static int intel_fetch_size(void)
796 {
797 int i;
798 u16 temp;
799 struct aper_size_info_16 *values;
800
801 pci_read_config_word(agp_bridge->dev, INTEL_APSIZE, &temp);
802 values = A_SIZE_16(agp_bridge->driver->aperture_sizes);
803
804 for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) {
805 if (temp == values[i].size_value) {
806 agp_bridge->previous_size = agp_bridge->current_size = (void *) (values + i);
807 agp_bridge->aperture_size_idx = i;
808 return values[i].size;
809 }
810 }
811
812 return 0;
813 }
814
815 static int __intel_8xx_fetch_size(u8 temp)
816 {
817 int i;
818 struct aper_size_info_8 *values;
819
820 values = A_SIZE_8(agp_bridge->driver->aperture_sizes);
821
822 for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) {
823 if (temp == values[i].size_value) {
824 agp_bridge->previous_size =
825 agp_bridge->current_size = (void *) (values + i);
826 agp_bridge->aperture_size_idx = i;
827 return values[i].size;
828 }
829 }
830 return 0;
831 }
832
833 static int intel_8xx_fetch_size(void)
834 {
835 u8 temp;
836
837 pci_read_config_byte(agp_bridge->dev, INTEL_APSIZE, &temp);
838 return __intel_8xx_fetch_size(temp);
839 }
840
841 static int intel_815_fetch_size(void)
842 {
843 u8 temp;
844
845 /* Intel 815 chipsets have a _weird_ APSIZE register with only
846 * one non-reserved bit, so mask the others out ... */
847 pci_read_config_byte(agp_bridge->dev, INTEL_APSIZE, &temp);
848 temp &= (1 << 3);
849
850 return __intel_8xx_fetch_size(temp);
851 }
852
853 static void intel_tlbflush(struct agp_memory *mem)
854 {
855 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x2200);
856 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x2280);
857 }
858
859
860 static void intel_8xx_tlbflush(struct agp_memory *mem)
861 {
862 u32 temp;
863 pci_read_config_dword(agp_bridge->dev, INTEL_AGPCTRL, &temp);
864 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, temp & ~(1 << 7));
865 pci_read_config_dword(agp_bridge->dev, INTEL_AGPCTRL, &temp);
866 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, temp | (1 << 7));
867 }
868
869
870 static void intel_cleanup(void)
871 {
872 u16 temp;
873 struct aper_size_info_16 *previous_size;
874
875 previous_size = A_SIZE_16(agp_bridge->previous_size);
876 pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp);
877 pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG, temp & ~(1 << 9));
878 pci_write_config_word(agp_bridge->dev, INTEL_APSIZE, previous_size->size_value);
879 }
880
881
882 static void intel_8xx_cleanup(void)
883 {
884 u16 temp;
885 struct aper_size_info_8 *previous_size;
886
887 previous_size = A_SIZE_8(agp_bridge->previous_size);
888 pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp);
889 pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG, temp & ~(1 << 9));
890 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, previous_size->size_value);
891 }
892
893
894 static int intel_configure(void)
895 {
896 u32 temp;
897 u16 temp2;
898 struct aper_size_info_16 *current_size;
899
900 current_size = A_SIZE_16(agp_bridge->current_size);
901
902 /* aperture size */
903 pci_write_config_word(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
904
905 /* address to map to */
906 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
907 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
908
909 /* attbase - aperture base */
910 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
911
912 /* agpctrl */
913 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x2280);
914
915 /* paccfg/nbxcfg */
916 pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp2);
917 pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG,
918 (temp2 & ~(1 << 10)) | (1 << 9));
919 /* clear any possible error conditions */
920 pci_write_config_byte(agp_bridge->dev, INTEL_ERRSTS + 1, 7);
921 return 0;
922 }
923
924 static int intel_815_configure(void)
925 {
926 u32 temp, addr;
927 u8 temp2;
928 struct aper_size_info_8 *current_size;
929
930 /* attbase - aperture base */
931 /* the Intel 815 chipset spec. says that bits 29-31 in the
932 * ATTBASE register are reserved -> try not to write them */
933 if (agp_bridge->gatt_bus_addr & INTEL_815_ATTBASE_MASK) {
934 printk (KERN_EMERG PFX "gatt bus addr too high");
935 return -EINVAL;
936 }
937
938 current_size = A_SIZE_8(agp_bridge->current_size);
939
940 /* aperture size */
941 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE,
942 current_size->size_value);
943
944 /* address to map to */
945 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
946 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
947
948 pci_read_config_dword(agp_bridge->dev, INTEL_ATTBASE, &addr);
949 addr &= INTEL_815_ATTBASE_MASK;
950 addr |= agp_bridge->gatt_bus_addr;
951 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, addr);
952
953 /* agpctrl */
954 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
955
956 /* apcont */
957 pci_read_config_byte(agp_bridge->dev, INTEL_815_APCONT, &temp2);
958 pci_write_config_byte(agp_bridge->dev, INTEL_815_APCONT, temp2 | (1 << 1));
959
960 /* clear any possible error conditions */
961 /* Oddness : this chipset seems to have no ERRSTS register ! */
962 return 0;
963 }
964
965 static void intel_820_tlbflush(struct agp_memory *mem)
966 {
967 return;
968 }
969
970 static void intel_820_cleanup(void)
971 {
972 u8 temp;
973 struct aper_size_info_8 *previous_size;
974
975 previous_size = A_SIZE_8(agp_bridge->previous_size);
976 pci_read_config_byte(agp_bridge->dev, INTEL_I820_RDCR, &temp);
977 pci_write_config_byte(agp_bridge->dev, INTEL_I820_RDCR,
978 temp & ~(1 << 1));
979 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE,
980 previous_size->size_value);
981 }
982
983
984 static int intel_820_configure(void)
985 {
986 u32 temp;
987 u8 temp2;
988 struct aper_size_info_8 *current_size;
989
990 current_size = A_SIZE_8(agp_bridge->current_size);
991
992 /* aperture size */
993 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
994
995 /* address to map to */
996 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
997 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
998
999 /* attbase - aperture base */
1000 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1001
1002 /* agpctrl */
1003 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1004
1005 /* global enable aperture access */
1006 /* This flag is not accessed through MCHCFG register as in */
1007 /* i850 chipset. */
1008 pci_read_config_byte(agp_bridge->dev, INTEL_I820_RDCR, &temp2);
1009 pci_write_config_byte(agp_bridge->dev, INTEL_I820_RDCR, temp2 | (1 << 1));
1010 /* clear any possible AGP-related error conditions */
1011 pci_write_config_word(agp_bridge->dev, INTEL_I820_ERRSTS, 0x001c);
1012 return 0;
1013 }
1014
1015 static int intel_840_configure(void)
1016 {
1017 u32 temp;
1018 u16 temp2;
1019 struct aper_size_info_8 *current_size;
1020
1021 current_size = A_SIZE_8(agp_bridge->current_size);
1022
1023 /* aperture size */
1024 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
1025
1026 /* address to map to */
1027 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1028 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1029
1030 /* attbase - aperture base */
1031 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1032
1033 /* agpctrl */
1034 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1035
1036 /* mcgcfg */
1037 pci_read_config_word(agp_bridge->dev, INTEL_I840_MCHCFG, &temp2);
1038 pci_write_config_word(agp_bridge->dev, INTEL_I840_MCHCFG, temp2 | (1 << 9));
1039 /* clear any possible error conditions */
1040 pci_write_config_word(agp_bridge->dev, INTEL_I840_ERRSTS, 0xc000);
1041 return 0;
1042 }
1043
1044 static int intel_845_configure(void)
1045 {
1046 u32 temp;
1047 u8 temp2;
1048 struct aper_size_info_8 *current_size;
1049
1050 current_size = A_SIZE_8(agp_bridge->current_size);
1051
1052 /* aperture size */
1053 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
1054
1055 if (agp_bridge->apbase_config != 0) {
1056 pci_write_config_dword(agp_bridge->dev, AGP_APBASE,
1057 agp_bridge->apbase_config);
1058 } else {
1059 /* address to map to */
1060 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1061 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1062 agp_bridge->apbase_config = temp;
1063 }
1064
1065 /* attbase - aperture base */
1066 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1067
1068 /* agpctrl */
1069 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1070
1071 /* agpm */
1072 pci_read_config_byte(agp_bridge->dev, INTEL_I845_AGPM, &temp2);
1073 pci_write_config_byte(agp_bridge->dev, INTEL_I845_AGPM, temp2 | (1 << 1));
1074 /* clear any possible error conditions */
1075 pci_write_config_word(agp_bridge->dev, INTEL_I845_ERRSTS, 0x001c);
1076 return 0;
1077 }
1078
1079 static int intel_850_configure(void)
1080 {
1081 u32 temp;
1082 u16 temp2;
1083 struct aper_size_info_8 *current_size;
1084
1085 current_size = A_SIZE_8(agp_bridge->current_size);
1086
1087 /* aperture size */
1088 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
1089
1090 /* address to map to */
1091 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1092 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1093
1094 /* attbase - aperture base */
1095 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1096
1097 /* agpctrl */
1098 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1099
1100 /* mcgcfg */
1101 pci_read_config_word(agp_bridge->dev, INTEL_I850_MCHCFG, &temp2);
1102 pci_write_config_word(agp_bridge->dev, INTEL_I850_MCHCFG, temp2 | (1 << 9));
1103 /* clear any possible AGP-related error conditions */
1104 pci_write_config_word(agp_bridge->dev, INTEL_I850_ERRSTS, 0x001c);
1105 return 0;
1106 }
1107
1108 static int intel_860_configure(void)
1109 {
1110 u32 temp;
1111 u16 temp2;
1112 struct aper_size_info_8 *current_size;
1113
1114 current_size = A_SIZE_8(agp_bridge->current_size);
1115
1116 /* aperture size */
1117 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
1118
1119 /* address to map to */
1120 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1121 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1122
1123 /* attbase - aperture base */
1124 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1125
1126 /* agpctrl */
1127 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1128
1129 /* mcgcfg */
1130 pci_read_config_word(agp_bridge->dev, INTEL_I860_MCHCFG, &temp2);
1131 pci_write_config_word(agp_bridge->dev, INTEL_I860_MCHCFG, temp2 | (1 << 9));
1132 /* clear any possible AGP-related error conditions */
1133 pci_write_config_word(agp_bridge->dev, INTEL_I860_ERRSTS, 0xf700);
1134 return 0;
1135 }
1136
1137 static int intel_830mp_configure(void)
1138 {
1139 u32 temp;
1140 u16 temp2;
1141 struct aper_size_info_8 *current_size;
1142
1143 current_size = A_SIZE_8(agp_bridge->current_size);
1144
1145 /* aperture size */
1146 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
1147
1148 /* address to map to */
1149 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1150 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1151
1152 /* attbase - aperture base */
1153 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1154
1155 /* agpctrl */
1156 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1157
1158 /* gmch */
1159 pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp2);
1160 pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG, temp2 | (1 << 9));
1161 /* clear any possible AGP-related error conditions */
1162 pci_write_config_word(agp_bridge->dev, INTEL_I830_ERRSTS, 0x1c);
1163 return 0;
1164 }
1165
1166 static int intel_7505_configure(void)
1167 {
1168 u32 temp;
1169 u16 temp2;
1170 struct aper_size_info_8 *current_size;
1171
1172 current_size = A_SIZE_8(agp_bridge->current_size);
1173
1174 /* aperture size */
1175 pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);
1176
1177 /* address to map to */
1178 pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp);
1179 agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
1180
1181 /* attbase - aperture base */
1182 pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);
1183
1184 /* agpctrl */
1185 pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);
1186
1187 /* mchcfg */
1188 pci_read_config_word(agp_bridge->dev, INTEL_I7505_MCHCFG, &temp2);
1189 pci_write_config_word(agp_bridge->dev, INTEL_I7505_MCHCFG, temp2 | (1 << 9));
1190
1191 return 0;
1192 }
1193
1194 /* Setup function */
1195 static struct gatt_mask intel_generic_masks[] =
1196 {
1197 {.mask = 0x00000017, .type = 0}
1198 };
1199
1200 static struct aper_size_info_8 intel_815_sizes[2] =
1201 {
1202 {64, 16384, 4, 0},
1203 {32, 8192, 3, 8},
1204 };
1205
1206 static struct aper_size_info_8 intel_8xx_sizes[7] =
1207 {
1208 {256, 65536, 6, 0},
1209 {128, 32768, 5, 32},
1210 {64, 16384, 4, 48},
1211 {32, 8192, 3, 56},
1212 {16, 4096, 2, 60},
1213 {8, 2048, 1, 62},
1214 {4, 1024, 0, 63}
1215 };
1216
1217 static struct aper_size_info_16 intel_generic_sizes[7] =
1218 {
1219 {256, 65536, 6, 0},
1220 {128, 32768, 5, 32},
1221 {64, 16384, 4, 48},
1222 {32, 8192, 3, 56},
1223 {16, 4096, 2, 60},
1224 {8, 2048, 1, 62},
1225 {4, 1024, 0, 63}
1226 };
1227
1228 static struct aper_size_info_8 intel_830mp_sizes[4] =
1229 {
1230 {256, 65536, 6, 0},
1231 {128, 32768, 5, 32},
1232 {64, 16384, 4, 48},
1233 {32, 8192, 3, 56}
1234 };
1235
1236 static struct agp_bridge_driver intel_generic_driver = {
1237 .owner = THIS_MODULE,
1238 .aperture_sizes = intel_generic_sizes,
1239 .size_type = U16_APER_SIZE,
1240 .num_aperture_sizes = 7,
1241 .configure = intel_configure,
1242 .fetch_size = intel_fetch_size,
1243 .cleanup = intel_cleanup,
1244 .tlb_flush = intel_tlbflush,
1245 .mask_memory = agp_generic_mask_memory,
1246 .masks = intel_generic_masks,
1247 .agp_enable = agp_generic_enable,
1248 .cache_flush = global_cache_flush,
1249 .create_gatt_table = agp_generic_create_gatt_table,
1250 .free_gatt_table = agp_generic_free_gatt_table,
1251 .insert_memory = agp_generic_insert_memory,
1252 .remove_memory = agp_generic_remove_memory,
1253 .alloc_by_type = agp_generic_alloc_by_type,
1254 .free_by_type = agp_generic_free_by_type,
1255 .agp_alloc_page = agp_generic_alloc_page,
1256 .agp_destroy_page = agp_generic_destroy_page,
1257 };
1258
1259 static struct agp_bridge_driver intel_810_driver = {
1260 .owner = THIS_MODULE,
1261 .aperture_sizes = intel_i810_sizes,
1262 .size_type = FIXED_APER_SIZE,
1263 .num_aperture_sizes = 2,
1264 .needs_scratch_page = TRUE,
1265 .configure = intel_i810_configure,
1266 .fetch_size = intel_i810_fetch_size,
1267 .cleanup = intel_i810_cleanup,
1268 .tlb_flush = intel_i810_tlbflush,
1269 .mask_memory = intel_i810_mask_memory,
1270 .masks = intel_i810_masks,
1271 .agp_enable = intel_i810_agp_enable,
1272 .cache_flush = global_cache_flush,
1273 .create_gatt_table = agp_generic_create_gatt_table,
1274 .free_gatt_table = agp_generic_free_gatt_table,
1275 .insert_memory = intel_i810_insert_entries,
1276 .remove_memory = intel_i810_remove_entries,
1277 .alloc_by_type = intel_i810_alloc_by_type,
1278 .free_by_type = intel_i810_free_by_type,
1279 .agp_alloc_page = agp_generic_alloc_page,
1280 .agp_destroy_page = agp_generic_destroy_page,
1281 };
1282
1283 static struct agp_bridge_driver intel_815_driver = {
1284 .owner = THIS_MODULE,
1285 .aperture_sizes = intel_815_sizes,
1286 .size_type = U8_APER_SIZE,
1287 .num_aperture_sizes = 2,
1288 .configure = intel_815_configure,
1289 .fetch_size = intel_815_fetch_size,
1290 .cleanup = intel_8xx_cleanup,
1291 .tlb_flush = intel_8xx_tlbflush,
1292 .mask_memory = agp_generic_mask_memory,
1293 .masks = intel_generic_masks,
1294 .agp_enable = agp_generic_enable,
1295 .cache_flush = global_cache_flush,
1296 .create_gatt_table = agp_generic_create_gatt_table,
1297 .free_gatt_table = agp_generic_free_gatt_table,
1298 .insert_memory = agp_generic_insert_memory,
1299 .remove_memory = agp_generic_remove_memory,
1300 .alloc_by_type = agp_generic_alloc_by_type,
1301 .free_by_type = agp_generic_free_by_type,
1302 .agp_alloc_page = agp_generic_alloc_page,
1303 .agp_destroy_page = agp_generic_destroy_page,
1304 };
1305
1306 static struct agp_bridge_driver intel_830_driver = {
1307 .owner = THIS_MODULE,
1308 .aperture_sizes = intel_i830_sizes,
1309 .size_type = FIXED_APER_SIZE,
1310 .num_aperture_sizes = 3,
1311 .needs_scratch_page = TRUE,
1312 .configure = intel_i830_configure,
1313 .fetch_size = intel_i830_fetch_size,
1314 .cleanup = intel_i830_cleanup,
1315 .tlb_flush = intel_i810_tlbflush,
1316 .mask_memory = intel_i810_mask_memory,
1317 .masks = intel_i810_masks,
1318 .agp_enable = intel_i810_agp_enable,
1319 .cache_flush = global_cache_flush,
1320 .create_gatt_table = intel_i830_create_gatt_table,
1321 .free_gatt_table = intel_i830_free_gatt_table,
1322 .insert_memory = intel_i830_insert_entries,
1323 .remove_memory = intel_i830_remove_entries,
1324 .alloc_by_type = intel_i830_alloc_by_type,
1325 .free_by_type = intel_i810_free_by_type,
1326 .agp_alloc_page = agp_generic_alloc_page,
1327 .agp_destroy_page = agp_generic_destroy_page,
1328 };
1329
1330 static struct agp_bridge_driver intel_820_driver = {
1331 .owner = THIS_MODULE,
1332 .aperture_sizes = intel_8xx_sizes,
1333 .size_type = U8_APER_SIZE,
1334 .num_aperture_sizes = 7,
1335 .configure = intel_820_configure,
1336 .fetch_size = intel_8xx_fetch_size,
1337 .cleanup = intel_820_cleanup,
1338 .tlb_flush = intel_820_tlbflush,
1339 .mask_memory = agp_generic_mask_memory,
1340 .masks = intel_generic_masks,
1341 .agp_enable = agp_generic_enable,
1342 .cache_flush = global_cache_flush,
1343 .create_gatt_table = agp_generic_create_gatt_table,
1344 .free_gatt_table = agp_generic_free_gatt_table,
1345 .insert_memory = agp_generic_insert_memory,
1346 .remove_memory = agp_generic_remove_memory,
1347 .alloc_by_type = agp_generic_alloc_by_type,
1348 .free_by_type = agp_generic_free_by_type,
1349 .agp_alloc_page = agp_generic_alloc_page,
1350 .agp_destroy_page = agp_generic_destroy_page,
1351 };
1352
1353 static struct agp_bridge_driver intel_830mp_driver = {
1354 .owner = THIS_MODULE,
1355 .aperture_sizes = intel_830mp_sizes,
1356 .size_type = U8_APER_SIZE,
1357 .num_aperture_sizes = 4,
1358 .configure = intel_830mp_configure,
1359 .fetch_size = intel_8xx_fetch_size,
1360 .cleanup = intel_8xx_cleanup,
1361 .tlb_flush = intel_8xx_tlbflush,
1362 .mask_memory = agp_generic_mask_memory,
1363 .masks = intel_generic_masks,
1364 .agp_enable = agp_generic_enable,
1365 .cache_flush = global_cache_flush,
1366 .create_gatt_table = agp_generic_create_gatt_table,
1367 .free_gatt_table = agp_generic_free_gatt_table,
1368 .insert_memory = agp_generic_insert_memory,
1369 .remove_memory = agp_generic_remove_memory,
1370 .alloc_by_type = agp_generic_alloc_by_type,
1371 .free_by_type = agp_generic_free_by_type,
1372 .agp_alloc_page = agp_generic_alloc_page,
1373 .agp_destroy_page = agp_generic_destroy_page,
1374 };
1375
1376 static struct agp_bridge_driver intel_840_driver = {
1377 .owner = THIS_MODULE,
1378 .aperture_sizes = intel_8xx_sizes,
1379 .size_type = U8_APER_SIZE,
1380 .num_aperture_sizes = 7,
1381 .configure = intel_840_configure,
1382 .fetch_size = intel_8xx_fetch_size,
1383 .cleanup = intel_8xx_cleanup,
1384 .tlb_flush = intel_8xx_tlbflush,
1385 .mask_memory = agp_generic_mask_memory,
1386 .masks = intel_generic_masks,
1387 .agp_enable = agp_generic_enable,
1388 .cache_flush = global_cache_flush,
1389 .create_gatt_table = agp_generic_create_gatt_table,
1390 .free_gatt_table = agp_generic_free_gatt_table,
1391 .insert_memory = agp_generic_insert_memory,
1392 .remove_memory = agp_generic_remove_memory,
1393 .alloc_by_type = agp_generic_alloc_by_type,
1394 .free_by_type = agp_generic_free_by_type,
1395 .agp_alloc_page = agp_generic_alloc_page,
1396 .agp_destroy_page = agp_generic_destroy_page,
1397 };
1398
1399 static struct agp_bridge_driver intel_845_driver = {
1400 .owner = THIS_MODULE,
1401 .aperture_sizes = intel_8xx_sizes,
1402 .size_type = U8_APER_SIZE,
1403 .num_aperture_sizes = 7,
1404 .configure = intel_845_configure,
1405 .fetch_size = intel_8xx_fetch_size,
1406 .cleanup = intel_8xx_cleanup,
1407 .tlb_flush = intel_8xx_tlbflush,
1408 .mask_memory = agp_generic_mask_memory,
1409 .masks = intel_generic_masks,
1410 .agp_enable = agp_generic_enable,
1411 .cache_flush = global_cache_flush,
1412 .create_gatt_table = agp_generic_create_gatt_table,
1413 .free_gatt_table = agp_generic_free_gatt_table,
1414 .insert_memory = agp_generic_insert_memory,
1415 .remove_memory = agp_generic_remove_memory,
1416 .alloc_by_type = agp_generic_alloc_by_type,
1417 .free_by_type = agp_generic_free_by_type,
1418 .agp_alloc_page = agp_generic_alloc_page,
1419 .agp_destroy_page = agp_generic_destroy_page,
1420 };
1421
1422 static struct agp_bridge_driver intel_850_driver = {
1423 .owner = THIS_MODULE,
1424 .aperture_sizes = intel_8xx_sizes,
1425 .size_type = U8_APER_SIZE,
1426 .num_aperture_sizes = 7,
1427 .configure = intel_850_configure,
1428 .fetch_size = intel_8xx_fetch_size,
1429 .cleanup = intel_8xx_cleanup,
1430 .tlb_flush = intel_8xx_tlbflush,
1431 .mask_memory = agp_generic_mask_memory,
1432 .masks = intel_generic_masks,
1433 .agp_enable = agp_generic_enable,
1434 .cache_flush = global_cache_flush,
1435 .create_gatt_table = agp_generic_create_gatt_table,
1436 .free_gatt_table = agp_generic_free_gatt_table,
1437 .insert_memory = agp_generic_insert_memory,
1438 .remove_memory = agp_generic_remove_memory,
1439 .alloc_by_type = agp_generic_alloc_by_type,
1440 .free_by_type = agp_generic_free_by_type,
1441 .agp_alloc_page = agp_generic_alloc_page,
1442 .agp_destroy_page = agp_generic_destroy_page,
1443 };
1444
1445 static struct agp_bridge_driver intel_860_driver = {
1446 .owner = THIS_MODULE,
1447 .aperture_sizes = intel_8xx_sizes,
1448 .size_type = U8_APER_SIZE,
1449 .num_aperture_sizes = 7,
1450 .configure = intel_860_configure,
1451 .fetch_size = intel_8xx_fetch_size,
1452 .cleanup = intel_8xx_cleanup,
1453 .tlb_flush = intel_8xx_tlbflush,
1454 .mask_memory = agp_generic_mask_memory,
1455 .masks = intel_generic_masks,
1456 .agp_enable = agp_generic_enable,
1457 .cache_flush = global_cache_flush,
1458 .create_gatt_table = agp_generic_create_gatt_table,
1459 .free_gatt_table = agp_generic_free_gatt_table,
1460 .insert_memory = agp_generic_insert_memory,
1461 .remove_memory = agp_generic_remove_memory,
1462 .alloc_by_type = agp_generic_alloc_by_type,
1463 .free_by_type = agp_generic_free_by_type,
1464 .agp_alloc_page = agp_generic_alloc_page,
1465 .agp_destroy_page = agp_generic_destroy_page,
1466 };
1467
1468 static struct agp_bridge_driver intel_915_driver = {
1469 .owner = THIS_MODULE,
1470 .aperture_sizes = intel_i830_sizes,
1471 .size_type = FIXED_APER_SIZE,
1472 .num_aperture_sizes = 3,
1473 .needs_scratch_page = TRUE,
1474 .configure = intel_i915_configure,
1475 .fetch_size = intel_i915_fetch_size,
1476 .cleanup = intel_i915_cleanup,
1477 .tlb_flush = intel_i810_tlbflush,
1478 .mask_memory = intel_i810_mask_memory,
1479 .masks = intel_i810_masks,
1480 .agp_enable = intel_i810_agp_enable,
1481 .cache_flush = global_cache_flush,
1482 .create_gatt_table = intel_i915_create_gatt_table,
1483 .free_gatt_table = intel_i830_free_gatt_table,
1484 .insert_memory = intel_i915_insert_entries,
1485 .remove_memory = intel_i915_remove_entries,
1486 .alloc_by_type = intel_i830_alloc_by_type,
1487 .free_by_type = intel_i810_free_by_type,
1488 .agp_alloc_page = agp_generic_alloc_page,
1489 .agp_destroy_page = agp_generic_destroy_page,
1490 };
1491
1492
1493 static struct agp_bridge_driver intel_7505_driver = {
1494 .owner = THIS_MODULE,
1495 .aperture_sizes = intel_8xx_sizes,
1496 .size_type = U8_APER_SIZE,
1497 .num_aperture_sizes = 7,
1498 .configure = intel_7505_configure,
1499 .fetch_size = intel_8xx_fetch_size,
1500 .cleanup = intel_8xx_cleanup,
1501 .tlb_flush = intel_8xx_tlbflush,
1502 .mask_memory = agp_generic_mask_memory,
1503 .masks = intel_generic_masks,
1504 .agp_enable = agp_generic_enable,
1505 .cache_flush = global_cache_flush,
1506 .create_gatt_table = agp_generic_create_gatt_table,
1507 .free_gatt_table = agp_generic_free_gatt_table,
1508 .insert_memory = agp_generic_insert_memory,
1509 .remove_memory = agp_generic_remove_memory,
1510 .alloc_by_type = agp_generic_alloc_by_type,
1511 .free_by_type = agp_generic_free_by_type,
1512 .agp_alloc_page = agp_generic_alloc_page,
1513 .agp_destroy_page = agp_generic_destroy_page,
1514 };
1515
1516 static int find_i810(u16 device)
1517 {
1518 struct pci_dev *i810_dev;
1519
1520 i810_dev = pci_get_device(PCI_VENDOR_ID_INTEL, device, NULL);
1521 if (!i810_dev)
1522 return 0;
1523 intel_i810_private.i810_dev = i810_dev;
1524 return 1;
1525 }
1526
1527 static int find_i830(u16 device)
1528 {
1529 struct pci_dev *i830_dev;
1530
1531 i830_dev = pci_get_device(PCI_VENDOR_ID_INTEL, device, NULL);
1532 if (i830_dev && PCI_FUNC(i830_dev->devfn) != 0) {
1533 i830_dev = pci_get_device(PCI_VENDOR_ID_INTEL,
1534 device, i830_dev);
1535 }
1536
1537 if (!i830_dev)
1538 return 0;
1539
1540 intel_i830_private.i830_dev = i830_dev;
1541 return 1;
1542 }
1543
1544 static int __devinit agp_intel_probe(struct pci_dev *pdev,
1545 const struct pci_device_id *ent)
1546 {
1547 struct agp_bridge_data *bridge;
1548 char *name = "(unknown)";
1549 u8 cap_ptr = 0;
1550 struct resource *r;
1551
1552 cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP);
1553
1554 bridge = agp_alloc_bridge();
1555 if (!bridge)
1556 return -ENOMEM;
1557
1558 switch (pdev->device) {
1559 case PCI_DEVICE_ID_INTEL_82443LX_0:
1560 bridge->driver = &intel_generic_driver;
1561 name = "440LX";
1562 break;
1563 case PCI_DEVICE_ID_INTEL_82443BX_0:
1564 bridge->driver = &intel_generic_driver;
1565 name = "440BX";
1566 break;
1567 case PCI_DEVICE_ID_INTEL_82443GX_0:
1568 bridge->driver = &intel_generic_driver;
1569 name = "440GX";
1570 break;
1571 case PCI_DEVICE_ID_INTEL_82810_MC1:
1572 name = "i810";
1573 if (!find_i810(PCI_DEVICE_ID_INTEL_82810_IG1))
1574 goto fail;
1575 bridge->driver = &intel_810_driver;
1576 break;
1577 case PCI_DEVICE_ID_INTEL_82810_MC3:
1578 name = "i810 DC100";
1579 if (!find_i810(PCI_DEVICE_ID_INTEL_82810_IG3))
1580 goto fail;
1581 bridge->driver = &intel_810_driver;
1582 break;
1583 case PCI_DEVICE_ID_INTEL_82810E_MC:
1584 name = "i810 E";
1585 if (!find_i810(PCI_DEVICE_ID_INTEL_82810E_IG))
1586 goto fail;
1587 bridge->driver = &intel_810_driver;
1588 break;
1589 case PCI_DEVICE_ID_INTEL_82815_MC:
1590 /*
1591 * The i815 can operate either as an i810 style
1592 * integrated device, or as an AGP4X motherboard.
1593 */
1594 if (find_i810(PCI_DEVICE_ID_INTEL_82815_CGC))
1595 bridge->driver = &intel_810_driver;
1596 else
1597 bridge->driver = &intel_815_driver;
1598 name = "i815";
1599 break;
1600 case PCI_DEVICE_ID_INTEL_82820_HB:
1601 case PCI_DEVICE_ID_INTEL_82820_UP_HB:
1602 bridge->driver = &intel_820_driver;
1603 name = "i820";
1604 break;
1605 case PCI_DEVICE_ID_INTEL_82830_HB:
1606 if (find_i830(PCI_DEVICE_ID_INTEL_82830_CGC))
1607 bridge->driver = &intel_830_driver;
1608 else
1609 bridge->driver = &intel_830mp_driver;
1610 name = "830M";
1611 break;
1612 case PCI_DEVICE_ID_INTEL_82840_HB:
1613 bridge->driver = &intel_840_driver;
1614 name = "i840";
1615 break;
1616 case PCI_DEVICE_ID_INTEL_82845_HB:
1617 bridge->driver = &intel_845_driver;
1618 name = "i845";
1619 break;
1620 case PCI_DEVICE_ID_INTEL_82845G_HB:
1621 if (find_i830(PCI_DEVICE_ID_INTEL_82845G_IG))
1622 bridge->driver = &intel_830_driver;
1623 else
1624 bridge->driver = &intel_845_driver;
1625 name = "845G";
1626 break;
1627 case PCI_DEVICE_ID_INTEL_82850_HB:
1628 bridge->driver = &intel_850_driver;
1629 name = "i850";
1630 break;
1631 case PCI_DEVICE_ID_INTEL_82855PM_HB:
1632 bridge->driver = &intel_845_driver;
1633 name = "855PM";
1634 break;
1635 case PCI_DEVICE_ID_INTEL_82855GM_HB:
1636 if (find_i830(PCI_DEVICE_ID_INTEL_82855GM_IG)) {
1637 bridge->driver = &intel_830_driver;
1638 name = "855";
1639 } else {
1640 bridge->driver = &intel_845_driver;
1641 name = "855GM";
1642 }
1643 break;
1644 case PCI_DEVICE_ID_INTEL_82860_HB:
1645 bridge->driver = &intel_860_driver;
1646 name = "i860";
1647 break;
1648 case PCI_DEVICE_ID_INTEL_82865_HB:
1649 if (find_i830(PCI_DEVICE_ID_INTEL_82865_IG))
1650 bridge->driver = &intel_830_driver;
1651 else
1652 bridge->driver = &intel_845_driver;
1653 name = "865";
1654 break;
1655 case PCI_DEVICE_ID_INTEL_82875_HB:
1656 bridge->driver = &intel_845_driver;
1657 name = "i875";
1658 break;
1659 case PCI_DEVICE_ID_INTEL_82915G_HB:
1660 if (find_i830(PCI_DEVICE_ID_INTEL_82915G_IG))
1661 bridge->driver = &intel_915_driver;
1662 else
1663 bridge->driver = &intel_845_driver;
1664 name = "915G";
1665 break;
1666 case PCI_DEVICE_ID_INTEL_82915GM_HB:
1667 if (find_i830(PCI_DEVICE_ID_INTEL_82915GM_IG))
1668 bridge->driver = &intel_915_driver;
1669 else
1670 bridge->driver = &intel_845_driver;
1671 name = "915GM";
1672 break;
1673 case PCI_DEVICE_ID_INTEL_82945G_HB:
1674 if (find_i830(PCI_DEVICE_ID_INTEL_82945G_IG))
1675 bridge->driver = &intel_915_driver;
1676 else
1677 bridge->driver = &intel_845_driver;
1678 name = "945G";
1679 break;
1680 case PCI_DEVICE_ID_INTEL_82945GM_HB:
1681 if (find_i830(PCI_DEVICE_ID_INTEL_82945GM_IG))
1682 bridge->driver = &intel_915_driver;
1683 else
1684 bridge->driver = &intel_845_driver;
1685 name = "945GM";
1686 break;
1687 case PCI_DEVICE_ID_INTEL_7505_0:
1688 bridge->driver = &intel_7505_driver;
1689 name = "E7505";
1690 break;
1691 case PCI_DEVICE_ID_INTEL_7205_0:
1692 bridge->driver = &intel_7505_driver;
1693 name = "E7205";
1694 break;
1695 default:
1696 if (cap_ptr)
1697 printk(KERN_WARNING PFX "Unsupported Intel chipset (device id: %04x)\n",
1698 pdev->device);
1699 agp_put_bridge(bridge);
1700 return -ENODEV;
1701 };
1702
1703 bridge->dev = pdev;
1704 bridge->capndx = cap_ptr;
1705
1706 if (bridge->driver == &intel_810_driver)
1707 bridge->dev_private_data = &intel_i810_private;
1708 else if (bridge->driver == &intel_830_driver)
1709 bridge->dev_private_data = &intel_i830_private;
1710
1711 printk(KERN_INFO PFX "Detected an Intel %s Chipset.\n", name);
1712
1713 /*
1714 * The following fixes the case where the BIOS has "forgotten" to
1715 * provide an address range for the GART.
1716 * 20030610 - hamish@zot.org
1717 */
1718 r = &pdev->resource[0];
1719 if (!r->start && r->end) {
1720 if (pci_assign_resource(pdev, 0)) {
1721 printk(KERN_ERR PFX "could not assign resource 0\n");
1722 agp_put_bridge(bridge);
1723 return -ENODEV;
1724 }
1725 }
1726
1727 /*
1728 * If the device has not been properly setup, the following will catch
1729 * the problem and should stop the system from crashing.
1730 * 20030610 - hamish@zot.org
1731 */
1732 if (pci_enable_device(pdev)) {
1733 printk(KERN_ERR PFX "Unable to Enable PCI device\n");
1734 agp_put_bridge(bridge);
1735 return -ENODEV;
1736 }
1737
1738 /* Fill in the mode register */
1739 if (cap_ptr) {
1740 pci_read_config_dword(pdev,
1741 bridge->capndx+PCI_AGP_STATUS,
1742 &bridge->mode);
1743 }
1744
1745 pci_set_drvdata(pdev, bridge);
1746 return agp_add_bridge(bridge);
1747
1748 fail:
1749 printk(KERN_ERR PFX "Detected an Intel %s chipset, "
1750 "but could not find the secondary device.\n", name);
1751 agp_put_bridge(bridge);
1752 return -ENODEV;
1753 }
1754
1755 static void __devexit agp_intel_remove(struct pci_dev *pdev)
1756 {
1757 struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
1758
1759 agp_remove_bridge(bridge);
1760
1761 if (intel_i810_private.i810_dev)
1762 pci_dev_put(intel_i810_private.i810_dev);
1763 if (intel_i830_private.i830_dev)
1764 pci_dev_put(intel_i830_private.i830_dev);
1765
1766 agp_put_bridge(bridge);
1767 }
1768
1769 static int agp_intel_resume(struct pci_dev *pdev)
1770 {
1771 struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
1772
1773 pci_restore_state(pdev);
1774
1775 if (bridge->driver == &intel_generic_driver)
1776 intel_configure();
1777 else if (bridge->driver == &intel_850_driver)
1778 intel_850_configure();
1779 else if (bridge->driver == &intel_845_driver)
1780 intel_845_configure();
1781 else if (bridge->driver == &intel_830mp_driver)
1782 intel_830mp_configure();
1783 else if (bridge->driver == &intel_915_driver)
1784 intel_i915_configure();
1785 else if (bridge->driver == &intel_830_driver)
1786 intel_i830_configure();
1787 else if (bridge->driver == &intel_810_driver)
1788 intel_i810_configure();
1789
1790 return 0;
1791 }
1792
1793 static struct pci_device_id agp_intel_pci_table[] = {
1794 #define ID(x) \
1795 { \
1796 .class = (PCI_CLASS_BRIDGE_HOST << 8), \
1797 .class_mask = ~0, \
1798 .vendor = PCI_VENDOR_ID_INTEL, \
1799 .device = x, \
1800 .subvendor = PCI_ANY_ID, \
1801 .subdevice = PCI_ANY_ID, \
1802 }
1803 ID(PCI_DEVICE_ID_INTEL_82443LX_0),
1804 ID(PCI_DEVICE_ID_INTEL_82443BX_0),
1805 ID(PCI_DEVICE_ID_INTEL_82443GX_0),
1806 ID(PCI_DEVICE_ID_INTEL_82810_MC1),
1807 ID(PCI_DEVICE_ID_INTEL_82810_MC3),
1808 ID(PCI_DEVICE_ID_INTEL_82810E_MC),
1809 ID(PCI_DEVICE_ID_INTEL_82815_MC),
1810 ID(PCI_DEVICE_ID_INTEL_82820_HB),
1811 ID(PCI_DEVICE_ID_INTEL_82820_UP_HB),
1812 ID(PCI_DEVICE_ID_INTEL_82830_HB),
1813 ID(PCI_DEVICE_ID_INTEL_82840_HB),
1814 ID(PCI_DEVICE_ID_INTEL_82845_HB),
1815 ID(PCI_DEVICE_ID_INTEL_82845G_HB),
1816 ID(PCI_DEVICE_ID_INTEL_82850_HB),
1817 ID(PCI_DEVICE_ID_INTEL_82855PM_HB),
1818 ID(PCI_DEVICE_ID_INTEL_82855GM_HB),
1819 ID(PCI_DEVICE_ID_INTEL_82860_HB),
1820 ID(PCI_DEVICE_ID_INTEL_82865_HB),
1821 ID(PCI_DEVICE_ID_INTEL_82875_HB),
1822 ID(PCI_DEVICE_ID_INTEL_7505_0),
1823 ID(PCI_DEVICE_ID_INTEL_7205_0),
1824 ID(PCI_DEVICE_ID_INTEL_82915G_HB),
1825 ID(PCI_DEVICE_ID_INTEL_82915GM_HB),
1826 ID(PCI_DEVICE_ID_INTEL_82945G_HB),
1827 ID(PCI_DEVICE_ID_INTEL_82945GM_HB),
1828 { }
1829 };
1830
1831 MODULE_DEVICE_TABLE(pci, agp_intel_pci_table);
1832
1833 static struct pci_driver agp_intel_pci_driver = {
1834 .name = "agpgart-intel",
1835 .id_table = agp_intel_pci_table,
1836 .probe = agp_intel_probe,
1837 .remove = __devexit_p(agp_intel_remove),
1838 .resume = agp_intel_resume,
1839 };
1840
1841 static int __init agp_intel_init(void)
1842 {
1843 if (agp_off)
1844 return -EINVAL;
1845 return pci_register_driver(&agp_intel_pci_driver);
1846 }
1847
1848 static void __exit agp_intel_cleanup(void)
1849 {
1850 pci_unregister_driver(&agp_intel_pci_driver);
1851 }
1852
1853 module_init(agp_intel_init);
1854 module_exit(agp_intel_cleanup);
1855
1856 MODULE_AUTHOR("Dave Jones <davej@codemonkey.org.uk>");
1857 MODULE_LICENSE("GPL and additional rights");
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree