Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * ATi AGPGART routines. | |
3 | */ | |
4 | ||
5 | #include <linux/types.h> | |
6 | #include <linux/module.h> | |
7 | #include <linux/pci.h> | |
8 | #include <linux/init.h> | |
4e57b681 TS |
9 | #include <linux/string.h> |
10 | #include <linux/slab.h> | |
1da177e4 LT |
11 | #include <linux/agp_backend.h> |
12 | #include <asm/agp.h> | |
13 | #include "agp.h" | |
14 | ||
15 | #define ATI_GART_MMBASE_ADDR 0x14 | |
16 | #define ATI_RS100_APSIZE 0xac | |
17 | #define ATI_RS100_IG_AGPMODE 0xb0 | |
18 | #define ATI_RS300_APSIZE 0xf8 | |
19 | #define ATI_RS300_IG_AGPMODE 0xfc | |
20 | #define ATI_GART_FEATURE_ID 0x00 | |
21 | #define ATI_GART_BASE 0x04 | |
22 | #define ATI_GART_CACHE_SZBASE 0x08 | |
23 | #define ATI_GART_CACHE_CNTRL 0x0c | |
24 | #define ATI_GART_CACHE_ENTRY_CNTRL 0x10 | |
25 | ||
26 | ||
e5524f35 | 27 | static const struct aper_size_info_lvl2 ati_generic_sizes[7] = |
1da177e4 LT |
28 | { |
29 | {2048, 524288, 0x0000000c}, | |
30 | {1024, 262144, 0x0000000a}, | |
31 | {512, 131072, 0x00000008}, | |
32 | {256, 65536, 0x00000006}, | |
33 | {128, 32768, 0x00000004}, | |
34 | {64, 16384, 0x00000002}, | |
35 | {32, 8192, 0x00000000} | |
36 | }; | |
37 | ||
38 | static struct gatt_mask ati_generic_masks[] = | |
39 | { | |
40 | { .mask = 1, .type = 0} | |
41 | }; | |
42 | ||
43 | ||
87a17f31 | 44 | struct ati_page_map { |
1da177e4 LT |
45 | unsigned long *real; |
46 | unsigned long __iomem *remapped; | |
87a17f31 | 47 | }; |
1da177e4 LT |
48 | |
49 | static struct _ati_generic_private { | |
50 | volatile u8 __iomem *registers; | |
87a17f31 | 51 | struct ati_page_map **gatt_pages; |
1da177e4 LT |
52 | int num_tables; |
53 | } ati_generic_private; | |
54 | ||
87a17f31 | 55 | static int ati_create_page_map(struct ati_page_map *page_map) |
1da177e4 LT |
56 | { |
57 | int i, err = 0; | |
58 | ||
59 | page_map->real = (unsigned long *) __get_free_page(GFP_KERNEL); | |
60 | if (page_map->real == NULL) | |
61 | return -ENOMEM; | |
62 | ||
44a207fc | 63 | set_memory_uc((unsigned long)page_map->real, 1); |
1da177e4 | 64 | err = map_page_into_agp(virt_to_page(page_map->real)); |
fcea424d | 65 | page_map->remapped = page_map->real; |
1da177e4 | 66 | |
6a92a4e0 | 67 | for (i = 0; i < PAGE_SIZE / sizeof(unsigned long); i++) { |
1da177e4 LT |
68 | writel(agp_bridge->scratch_page, page_map->remapped+i); |
69 | readl(page_map->remapped+i); /* PCI Posting. */ | |
70 | } | |
71 | ||
72 | return 0; | |
73 | } | |
74 | ||
75 | ||
87a17f31 | 76 | static void ati_free_page_map(struct ati_page_map *page_map) |
1da177e4 LT |
77 | { |
78 | unmap_page_from_agp(virt_to_page(page_map->real)); | |
44a207fc | 79 | set_memory_wb((unsigned long)page_map->real, 1); |
1da177e4 LT |
80 | free_page((unsigned long) page_map->real); |
81 | } | |
82 | ||
83 | ||
84 | static void ati_free_gatt_pages(void) | |
85 | { | |
86 | int i; | |
87a17f31 DJ |
87 | struct ati_page_map **tables; |
88 | struct ati_page_map *entry; | |
1da177e4 LT |
89 | |
90 | tables = ati_generic_private.gatt_pages; | |
6a92a4e0 | 91 | for (i = 0; i < ati_generic_private.num_tables; i++) { |
1da177e4 LT |
92 | entry = tables[i]; |
93 | if (entry != NULL) { | |
94 | if (entry->real != NULL) | |
95 | ati_free_page_map(entry); | |
96 | kfree(entry); | |
97 | } | |
98 | } | |
99 | kfree(tables); | |
100 | } | |
101 | ||
102 | ||
103 | static int ati_create_gatt_pages(int nr_tables) | |
104 | { | |
87a17f31 DJ |
105 | struct ati_page_map **tables; |
106 | struct ati_page_map *entry; | |
1da177e4 LT |
107 | int retval = 0; |
108 | int i; | |
109 | ||
87a17f31 | 110 | tables = kzalloc((nr_tables + 1) * sizeof(struct ati_page_map *),GFP_KERNEL); |
1da177e4 LT |
111 | if (tables == NULL) |
112 | return -ENOMEM; | |
113 | ||
1da177e4 | 114 | for (i = 0; i < nr_tables; i++) { |
87a17f31 | 115 | entry = kzalloc(sizeof(struct ati_page_map), GFP_KERNEL); |
190644e1 | 116 | tables[i] = entry; |
1da177e4 | 117 | if (entry == NULL) { |
1da177e4 LT |
118 | retval = -ENOMEM; |
119 | break; | |
120 | } | |
1da177e4 | 121 | retval = ati_create_page_map(entry); |
7707ea3b DJ |
122 | if (retval != 0) |
123 | break; | |
1da177e4 | 124 | } |
190644e1 | 125 | ati_generic_private.num_tables = i; |
1da177e4 LT |
126 | ati_generic_private.gatt_pages = tables; |
127 | ||
89d17b96 DJ |
128 | if (retval != 0) |
129 | ati_free_gatt_pages(); | |
1da177e4 LT |
130 | |
131 | return retval; | |
132 | } | |
133 | ||
134 | static int is_r200(void) | |
135 | { | |
136 | if ((agp_bridge->dev->device == PCI_DEVICE_ID_ATI_RS100) || | |
137 | (agp_bridge->dev->device == PCI_DEVICE_ID_ATI_RS200) || | |
138 | (agp_bridge->dev->device == PCI_DEVICE_ID_ATI_RS200_B) || | |
139 | (agp_bridge->dev->device == PCI_DEVICE_ID_ATI_RS250)) | |
140 | return 1; | |
141 | return 0; | |
142 | } | |
143 | ||
144 | static int ati_fetch_size(void) | |
145 | { | |
146 | int i; | |
147 | u32 temp; | |
148 | struct aper_size_info_lvl2 *values; | |
149 | ||
150 | if (is_r200()) | |
151 | pci_read_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, &temp); | |
152 | else | |
153 | pci_read_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, &temp); | |
154 | ||
155 | temp = (temp & 0x0000000e); | |
156 | values = A_SIZE_LVL2(agp_bridge->driver->aperture_sizes); | |
157 | for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) { | |
158 | if (temp == values[i].size_value) { | |
159 | agp_bridge->previous_size = | |
160 | agp_bridge->current_size = (void *) (values + i); | |
161 | ||
162 | agp_bridge->aperture_size_idx = i; | |
163 | return values[i].size; | |
164 | } | |
165 | } | |
166 | ||
167 | return 0; | |
168 | } | |
169 | ||
170 | static void ati_tlbflush(struct agp_memory * mem) | |
171 | { | |
172 | writel(1, ati_generic_private.registers+ATI_GART_CACHE_CNTRL); | |
173 | readl(ati_generic_private.registers+ATI_GART_CACHE_CNTRL); /* PCI Posting. */ | |
174 | } | |
175 | ||
176 | static void ati_cleanup(void) | |
177 | { | |
178 | struct aper_size_info_lvl2 *previous_size; | |
179 | u32 temp; | |
180 | ||
181 | previous_size = A_SIZE_LVL2(agp_bridge->previous_size); | |
182 | ||
183 | /* Write back the previous size and disable gart translation */ | |
184 | if (is_r200()) { | |
185 | pci_read_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, &temp); | |
186 | temp = ((temp & ~(0x0000000f)) | previous_size->size_value); | |
187 | pci_write_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, temp); | |
188 | } else { | |
189 | pci_read_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, &temp); | |
190 | temp = ((temp & ~(0x0000000f)) | previous_size->size_value); | |
191 | pci_write_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, temp); | |
192 | } | |
193 | iounmap((volatile u8 __iomem *)ati_generic_private.registers); | |
194 | } | |
195 | ||
196 | ||
197 | static int ati_configure(void) | |
198 | { | |
199 | u32 temp; | |
200 | ||
201 | /* Get the memory mapped registers */ | |
202 | pci_read_config_dword(agp_bridge->dev, ATI_GART_MMBASE_ADDR, &temp); | |
203 | temp = (temp & 0xfffff000); | |
204 | ati_generic_private.registers = (volatile u8 __iomem *) ioremap(temp, 4096); | |
205 | ||
5bdbc7dc ST |
206 | if (!ati_generic_private.registers) |
207 | return -ENOMEM; | |
208 | ||
1da177e4 | 209 | if (is_r200()) |
89d17b96 | 210 | pci_write_config_dword(agp_bridge->dev, ATI_RS100_IG_AGPMODE, 0x20000); |
1da177e4 LT |
211 | else |
212 | pci_write_config_dword(agp_bridge->dev, ATI_RS300_IG_AGPMODE, 0x20000); | |
213 | ||
214 | /* address to map too */ | |
89d17b96 | 215 | /* |
1da177e4 LT |
216 | pci_read_config_dword(agp_bridge.dev, AGP_APBASE, &temp); |
217 | agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK); | |
218 | printk(KERN_INFO PFX "IGP320 gart_bus_addr: %x\n", agp_bridge.gart_bus_addr); | |
89d17b96 | 219 | */ |
1da177e4 LT |
220 | writel(0x60000, ati_generic_private.registers+ATI_GART_FEATURE_ID); |
221 | readl(ati_generic_private.registers+ATI_GART_FEATURE_ID); /* PCI Posting.*/ | |
222 | ||
223 | /* SIGNALED_SYSTEM_ERROR @ NB_STATUS */ | |
224 | pci_read_config_dword(agp_bridge->dev, 4, &temp); | |
225 | pci_write_config_dword(agp_bridge->dev, 4, temp | (1<<14)); | |
226 | ||
227 | /* Write out the address of the gatt table */ | |
228 | writel(agp_bridge->gatt_bus_addr, ati_generic_private.registers+ATI_GART_BASE); | |
229 | readl(ati_generic_private.registers+ATI_GART_BASE); /* PCI Posting. */ | |
230 | ||
231 | return 0; | |
232 | } | |
233 | ||
234 | ||
5dda4986 | 235 | #ifdef CONFIG_PM |
a4aec262 | 236 | static int agp_ati_suspend(struct pci_dev *dev, pm_message_t state) |
5dda4986 | 237 | { |
a4aec262 | 238 | pci_save_state(dev); |
b3818ed4 | 239 | pci_set_power_state(dev, 3); |
5dda4986 | 240 | |
a4aec262 | 241 | return 0; |
5dda4986 AM |
242 | } |
243 | ||
a4aec262 | 244 | static int agp_ati_resume(struct pci_dev *dev) |
5dda4986 | 245 | { |
b3818ed4 | 246 | pci_set_power_state(dev, 0); |
a4aec262 | 247 | pci_restore_state(dev); |
5dda4986 | 248 | |
a4aec262 | 249 | return ati_configure(); |
5dda4986 AM |
250 | } |
251 | #endif | |
252 | ||
1da177e4 | 253 | /* |
d6e05edc | 254 | *Since we don't need contiguous memory we just try |
1da177e4 LT |
255 | * to get the gatt table once |
256 | */ | |
257 | ||
258 | #define GET_PAGE_DIR_OFF(addr) (addr >> 22) | |
259 | #define GET_PAGE_DIR_IDX(addr) (GET_PAGE_DIR_OFF(addr) - \ | |
260 | GET_PAGE_DIR_OFF(agp_bridge->gart_bus_addr)) | |
261 | #define GET_GATT_OFF(addr) ((addr & 0x003ff000) >> 12) | |
262 | #undef GET_GATT | |
263 | #define GET_GATT(addr) (ati_generic_private.gatt_pages[\ | |
264 | GET_PAGE_DIR_IDX(addr)]->remapped) | |
265 | ||
266 | static int ati_insert_memory(struct agp_memory * mem, | |
267 | off_t pg_start, int type) | |
268 | { | |
269 | int i, j, num_entries; | |
270 | unsigned long __iomem *cur_gatt; | |
271 | unsigned long addr; | |
a95fe463 | 272 | int mask_type; |
1da177e4 LT |
273 | |
274 | num_entries = A_SIZE_LVL2(agp_bridge->current_size)->num_entries; | |
275 | ||
a95fe463 DA |
276 | mask_type = agp_generic_type_to_mask_type(mem->bridge, type); |
277 | if (mask_type != 0 || type != mem->type) | |
1da177e4 LT |
278 | return -EINVAL; |
279 | ||
a95fe463 DA |
280 | if (mem->page_count == 0) |
281 | return 0; | |
282 | ||
1da177e4 LT |
283 | if ((pg_start + mem->page_count) > num_entries) |
284 | return -EINVAL; | |
285 | ||
286 | j = pg_start; | |
287 | while (j < (pg_start + mem->page_count)) { | |
288 | addr = (j * PAGE_SIZE) + agp_bridge->gart_bus_addr; | |
289 | cur_gatt = GET_GATT(addr); | |
290 | if (!PGE_EMPTY(agp_bridge,readl(cur_gatt+GET_GATT_OFF(addr)))) | |
291 | return -EBUSY; | |
292 | j++; | |
293 | } | |
294 | ||
c7258012 | 295 | if (!mem->is_flushed) { |
1da177e4 LT |
296 | /*CACHE_FLUSH(); */ |
297 | global_cache_flush(); | |
c7258012 | 298 | mem->is_flushed = true; |
1da177e4 LT |
299 | } |
300 | ||
301 | for (i = 0, j = pg_start; i < mem->page_count; i++, j++) { | |
302 | addr = (j * PAGE_SIZE) + agp_bridge->gart_bus_addr; | |
303 | cur_gatt = GET_GATT(addr); | |
07613ba2 DA |
304 | writel(agp_bridge->driver->mask_memory(agp_bridge, |
305 | mem->pages[i], mem->type), | |
306 | cur_gatt+GET_GATT_OFF(addr)); | |
1da177e4 | 307 | } |
a95fe463 | 308 | readl(GET_GATT(agp_bridge->gart_bus_addr)); /* PCI posting */ |
1da177e4 LT |
309 | agp_bridge->driver->tlb_flush(mem); |
310 | return 0; | |
311 | } | |
312 | ||
313 | static int ati_remove_memory(struct agp_memory * mem, off_t pg_start, | |
314 | int type) | |
315 | { | |
316 | int i; | |
317 | unsigned long __iomem *cur_gatt; | |
318 | unsigned long addr; | |
a95fe463 | 319 | int mask_type; |
1da177e4 | 320 | |
a95fe463 DA |
321 | mask_type = agp_generic_type_to_mask_type(mem->bridge, type); |
322 | if (mask_type != 0 || type != mem->type) | |
1da177e4 | 323 | return -EINVAL; |
89d17b96 | 324 | |
a95fe463 DA |
325 | if (mem->page_count == 0) |
326 | return 0; | |
327 | ||
1da177e4 LT |
328 | for (i = pg_start; i < (mem->page_count + pg_start); i++) { |
329 | addr = (i * PAGE_SIZE) + agp_bridge->gart_bus_addr; | |
330 | cur_gatt = GET_GATT(addr); | |
331 | writel(agp_bridge->scratch_page, cur_gatt+GET_GATT_OFF(addr)); | |
1da177e4 LT |
332 | } |
333 | ||
a95fe463 | 334 | readl(GET_GATT(agp_bridge->gart_bus_addr)); /* PCI posting */ |
1da177e4 LT |
335 | agp_bridge->driver->tlb_flush(mem); |
336 | return 0; | |
337 | } | |
338 | ||
339 | static int ati_create_gatt_table(struct agp_bridge_data *bridge) | |
340 | { | |
341 | struct aper_size_info_lvl2 *value; | |
87a17f31 | 342 | struct ati_page_map page_dir; |
1da177e4 LT |
343 | unsigned long addr; |
344 | int retval; | |
345 | u32 temp; | |
346 | int i; | |
347 | struct aper_size_info_lvl2 *current_size; | |
348 | ||
349 | value = A_SIZE_LVL2(agp_bridge->current_size); | |
350 | retval = ati_create_page_map(&page_dir); | |
351 | if (retval != 0) | |
352 | return retval; | |
353 | ||
354 | retval = ati_create_gatt_pages(value->num_entries / 1024); | |
355 | if (retval != 0) { | |
356 | ati_free_page_map(&page_dir); | |
357 | return retval; | |
358 | } | |
359 | ||
360 | agp_bridge->gatt_table_real = (u32 *)page_dir.real; | |
361 | agp_bridge->gatt_table = (u32 __iomem *) page_dir.remapped; | |
07eee78e | 362 | agp_bridge->gatt_bus_addr = virt_to_gart(page_dir.real); |
1da177e4 LT |
363 | |
364 | /* Write out the size register */ | |
365 | current_size = A_SIZE_LVL2(agp_bridge->current_size); | |
366 | ||
367 | if (is_r200()) { | |
368 | pci_read_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, &temp); | |
369 | temp = (((temp & ~(0x0000000e)) | current_size->size_value) | |
370 | | 0x00000001); | |
371 | pci_write_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, temp); | |
372 | pci_read_config_dword(agp_bridge->dev, ATI_RS100_APSIZE, &temp); | |
373 | } else { | |
374 | pci_read_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, &temp); | |
375 | temp = (((temp & ~(0x0000000e)) | current_size->size_value) | |
376 | | 0x00000001); | |
377 | pci_write_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, temp); | |
378 | pci_read_config_dword(agp_bridge->dev, ATI_RS300_APSIZE, &temp); | |
379 | } | |
380 | ||
381 | /* | |
382 | * Get the address for the gart region. | |
383 | * This is a bus address even on the alpha, b/c its | |
384 | * used to program the agp master not the cpu | |
385 | */ | |
386 | pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp); | |
387 | addr = (temp & PCI_BASE_ADDRESS_MEM_MASK); | |
388 | agp_bridge->gart_bus_addr = addr; | |
389 | ||
390 | /* Calculate the agp offset */ | |
6a92a4e0 | 391 | for (i = 0; i < value->num_entries / 1024; i++, addr += 0x00400000) { |
07eee78e | 392 | writel(virt_to_gart(ati_generic_private.gatt_pages[i]->real) | 1, |
1da177e4 LT |
393 | page_dir.remapped+GET_PAGE_DIR_OFF(addr)); |
394 | readl(page_dir.remapped+GET_PAGE_DIR_OFF(addr)); /* PCI Posting. */ | |
395 | } | |
396 | ||
397 | return 0; | |
398 | } | |
399 | ||
400 | static int ati_free_gatt_table(struct agp_bridge_data *bridge) | |
401 | { | |
87a17f31 | 402 | struct ati_page_map page_dir; |
1da177e4 LT |
403 | |
404 | page_dir.real = (unsigned long *)agp_bridge->gatt_table_real; | |
405 | page_dir.remapped = (unsigned long __iomem *)agp_bridge->gatt_table; | |
406 | ||
407 | ati_free_gatt_pages(); | |
408 | ati_free_page_map(&page_dir); | |
409 | return 0; | |
410 | } | |
411 | ||
e5524f35 | 412 | static const struct agp_bridge_driver ati_generic_bridge = { |
1da177e4 LT |
413 | .owner = THIS_MODULE, |
414 | .aperture_sizes = ati_generic_sizes, | |
415 | .size_type = LVL2_APER_SIZE, | |
416 | .num_aperture_sizes = 7, | |
417 | .configure = ati_configure, | |
418 | .fetch_size = ati_fetch_size, | |
419 | .cleanup = ati_cleanup, | |
420 | .tlb_flush = ati_tlbflush, | |
421 | .mask_memory = agp_generic_mask_memory, | |
422 | .masks = ati_generic_masks, | |
423 | .agp_enable = agp_generic_enable, | |
424 | .cache_flush = global_cache_flush, | |
425 | .create_gatt_table = ati_create_gatt_table, | |
426 | .free_gatt_table = ati_free_gatt_table, | |
427 | .insert_memory = ati_insert_memory, | |
428 | .remove_memory = ati_remove_memory, | |
429 | .alloc_by_type = agp_generic_alloc_by_type, | |
430 | .free_by_type = agp_generic_free_by_type, | |
431 | .agp_alloc_page = agp_generic_alloc_page, | |
5f310b63 | 432 | .agp_alloc_pages = agp_generic_alloc_pages, |
1da177e4 | 433 | .agp_destroy_page = agp_generic_destroy_page, |
5f310b63 | 434 | .agp_destroy_pages = agp_generic_destroy_pages, |
a030ce44 | 435 | .agp_type_to_mask_type = agp_generic_type_to_mask_type, |
1da177e4 LT |
436 | }; |
437 | ||
438 | ||
439 | static struct agp_device_ids ati_agp_device_ids[] __devinitdata = | |
440 | { | |
441 | { | |
442 | .device_id = PCI_DEVICE_ID_ATI_RS100, | |
443 | .chipset_name = "IGP320/M", | |
444 | }, | |
445 | { | |
446 | .device_id = PCI_DEVICE_ID_ATI_RS200, | |
447 | .chipset_name = "IGP330/340/345/350/M", | |
448 | }, | |
449 | { | |
450 | .device_id = PCI_DEVICE_ID_ATI_RS200_B, | |
451 | .chipset_name = "IGP345M", | |
452 | }, | |
453 | { | |
454 | .device_id = PCI_DEVICE_ID_ATI_RS250, | |
455 | .chipset_name = "IGP7000/M", | |
456 | }, | |
457 | { | |
458 | .device_id = PCI_DEVICE_ID_ATI_RS300_100, | |
459 | .chipset_name = "IGP9100/M", | |
460 | }, | |
461 | { | |
462 | .device_id = PCI_DEVICE_ID_ATI_RS300_133, | |
463 | .chipset_name = "IGP9100/M", | |
464 | }, | |
465 | { | |
466 | .device_id = PCI_DEVICE_ID_ATI_RS300_166, | |
467 | .chipset_name = "IGP9100/M", | |
468 | }, | |
469 | { | |
470 | .device_id = PCI_DEVICE_ID_ATI_RS300_200, | |
471 | .chipset_name = "IGP9100/M", | |
472 | }, | |
df0bcab2 AK |
473 | { |
474 | .device_id = PCI_DEVICE_ID_ATI_RS350_133, | |
475 | .chipset_name = "IGP9000/M", | |
476 | }, | |
9d1ef8a6 DJ |
477 | { |
478 | .device_id = PCI_DEVICE_ID_ATI_RS350_200, | |
479 | .chipset_name = "IGP9100/M", | |
480 | }, | |
1da177e4 LT |
481 | { }, /* dummy final entry, always present */ |
482 | }; | |
483 | ||
484 | static int __devinit agp_ati_probe(struct pci_dev *pdev, | |
485 | const struct pci_device_id *ent) | |
486 | { | |
487 | struct agp_device_ids *devs = ati_agp_device_ids; | |
488 | struct agp_bridge_data *bridge; | |
489 | u8 cap_ptr; | |
490 | int j; | |
491 | ||
492 | cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP); | |
493 | if (!cap_ptr) | |
494 | return -ENODEV; | |
495 | ||
496 | /* probe for known chipsets */ | |
497 | for (j = 0; devs[j].chipset_name; j++) { | |
498 | if (pdev->device == devs[j].device_id) | |
499 | goto found; | |
500 | } | |
501 | ||
e3cf6951 BH |
502 | dev_err(&pdev->dev, "unsupported Ati chipset [%04x/%04x])\n", |
503 | pdev->vendor, pdev->device); | |
1da177e4 LT |
504 | return -ENODEV; |
505 | ||
506 | found: | |
507 | bridge = agp_alloc_bridge(); | |
508 | if (!bridge) | |
509 | return -ENOMEM; | |
510 | ||
511 | bridge->dev = pdev; | |
512 | bridge->capndx = cap_ptr; | |
1da177e4 | 513 | |
89d17b96 | 514 | bridge->driver = &ati_generic_bridge; |
1da177e4 | 515 | |
e3cf6951 | 516 | dev_info(&pdev->dev, "Ati %s chipset\n", devs[j].chipset_name); |
1da177e4 LT |
517 | |
518 | /* Fill in the mode register */ | |
519 | pci_read_config_dword(pdev, | |
520 | bridge->capndx+PCI_AGP_STATUS, | |
521 | &bridge->mode); | |
522 | ||
523 | pci_set_drvdata(pdev, bridge); | |
524 | return agp_add_bridge(bridge); | |
525 | } | |
526 | ||
527 | static void __devexit agp_ati_remove(struct pci_dev *pdev) | |
528 | { | |
529 | struct agp_bridge_data *bridge = pci_get_drvdata(pdev); | |
530 | ||
531 | agp_remove_bridge(bridge); | |
532 | agp_put_bridge(bridge); | |
533 | } | |
534 | ||
535 | static struct pci_device_id agp_ati_pci_table[] = { | |
536 | { | |
537 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
538 | .class_mask = ~0, | |
539 | .vendor = PCI_VENDOR_ID_ATI, | |
540 | .device = PCI_ANY_ID, | |
541 | .subvendor = PCI_ANY_ID, | |
542 | .subdevice = PCI_ANY_ID, | |
543 | }, | |
544 | { } | |
545 | }; | |
546 | ||
547 | MODULE_DEVICE_TABLE(pci, agp_ati_pci_table); | |
548 | ||
549 | static struct pci_driver agp_ati_pci_driver = { | |
550 | .name = "agpgart-ati", | |
551 | .id_table = agp_ati_pci_table, | |
552 | .probe = agp_ati_probe, | |
553 | .remove = agp_ati_remove, | |
5dda4986 | 554 | #ifdef CONFIG_PM |
5dda4986 | 555 | .suspend = agp_ati_suspend, |
a4aec262 | 556 | .resume = agp_ati_resume, |
5dda4986 | 557 | #endif |
1da177e4 LT |
558 | }; |
559 | ||
560 | static int __init agp_ati_init(void) | |
561 | { | |
562 | if (agp_off) | |
563 | return -EINVAL; | |
564 | return pci_register_driver(&agp_ati_pci_driver); | |
565 | } | |
566 | ||
567 | static void __exit agp_ati_cleanup(void) | |
568 | { | |
569 | pci_unregister_driver(&agp_ati_pci_driver); | |
570 | } | |
571 | ||
572 | module_init(agp_ati_init); | |
573 | module_exit(agp_ati_cleanup); | |
574 | ||
f4432c5c | 575 | MODULE_AUTHOR("Dave Jones <davej@redhat.com>"); |
1da177e4 LT |
576 | MODULE_LICENSE("GPL and additional rights"); |
577 |