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1da177e4 LT |
1 | /* |
2 | * Copyright 2001-2003 SuSE Labs. | |
3 | * Distributed under the GNU public license, v2. | |
4 | * | |
5 | * This is a GART driver for the AMD Opteron/Athlon64 on-CPU northbridge. | |
6 | * It also includes support for the AMD 8151 AGP bridge, | |
7 | * although it doesn't actually do much, as all the real | |
8 | * work is done in the northbridge(s). | |
9 | */ | |
10 | ||
1da177e4 LT |
11 | #include <linux/module.h> |
12 | #include <linux/pci.h> | |
13 | #include <linux/init.h> | |
14 | #include <linux/agp_backend.h> | |
8c65b4a6 | 15 | #include <linux/mmzone.h> |
4e57b681 | 16 | #include <asm/page.h> /* PAGE_SIZE */ |
b92e9fac | 17 | #include <asm/e820.h> |
a32073bf | 18 | #include <asm/k8.h> |
aa134f1b | 19 | #include <asm/gart.h> |
1da177e4 LT |
20 | #include "agp.h" |
21 | ||
1da177e4 LT |
22 | /* NVIDIA K8 registers */ |
23 | #define NVIDIA_X86_64_0_APBASE 0x10 | |
24 | #define NVIDIA_X86_64_1_APBASE1 0x50 | |
25 | #define NVIDIA_X86_64_1_APLIMIT1 0x54 | |
26 | #define NVIDIA_X86_64_1_APSIZE 0xa8 | |
27 | #define NVIDIA_X86_64_1_APBASE2 0xd8 | |
28 | #define NVIDIA_X86_64_1_APLIMIT2 0xdc | |
29 | ||
30 | /* ULi K8 registers */ | |
31 | #define ULI_X86_64_BASE_ADDR 0x10 | |
32 | #define ULI_X86_64_HTT_FEA_REG 0x50 | |
33 | #define ULI_X86_64_ENU_SCR_REG 0x54 | |
34 | ||
1da177e4 | 35 | static struct resource *aperture_resource; |
172efbb4 | 36 | static int __initdata agp_try_unsupported = 1; |
55814b74 | 37 | static int agp_bridges_found; |
1da177e4 | 38 | |
1da177e4 LT |
39 | static void amd64_tlbflush(struct agp_memory *temp) |
40 | { | |
a32073bf | 41 | k8_flush_garts(); |
1da177e4 LT |
42 | } |
43 | ||
44 | static int amd64_insert_memory(struct agp_memory *mem, off_t pg_start, int type) | |
45 | { | |
46 | int i, j, num_entries; | |
47 | long long tmp; | |
a030ce44 TH |
48 | int mask_type; |
49 | struct agp_bridge_data *bridge = mem->bridge; | |
1da177e4 LT |
50 | u32 pte; |
51 | ||
52 | num_entries = agp_num_entries(); | |
53 | ||
a030ce44 | 54 | if (type != mem->type) |
1da177e4 | 55 | return -EINVAL; |
a030ce44 TH |
56 | mask_type = bridge->driver->agp_type_to_mask_type(bridge, type); |
57 | if (mask_type != 0) | |
58 | return -EINVAL; | |
59 | ||
1da177e4 LT |
60 | |
61 | /* Make sure we can fit the range in the gatt table. */ | |
62 | /* FIXME: could wrap */ | |
63 | if (((unsigned long)pg_start + mem->page_count) > num_entries) | |
64 | return -EINVAL; | |
65 | ||
66 | j = pg_start; | |
67 | ||
68 | /* gatt table should be empty. */ | |
69 | while (j < (pg_start + mem->page_count)) { | |
70 | if (!PGE_EMPTY(agp_bridge, readl(agp_bridge->gatt_table+j))) | |
71 | return -EBUSY; | |
72 | j++; | |
73 | } | |
74 | ||
c7258012 | 75 | if (!mem->is_flushed) { |
1da177e4 | 76 | global_cache_flush(); |
c7258012 | 77 | mem->is_flushed = true; |
1da177e4 LT |
78 | } |
79 | ||
80 | for (i = 0, j = pg_start; i < mem->page_count; i++, j++) { | |
81 | tmp = agp_bridge->driver->mask_memory(agp_bridge, | |
a030ce44 | 82 | mem->memory[i], mask_type); |
1da177e4 LT |
83 | |
84 | BUG_ON(tmp & 0xffffff0000000ffcULL); | |
85 | pte = (tmp & 0x000000ff00000000ULL) >> 28; | |
86 | pte |=(tmp & 0x00000000fffff000ULL); | |
87 | pte |= GPTE_VALID | GPTE_COHERENT; | |
88 | ||
89 | writel(pte, agp_bridge->gatt_table+j); | |
90 | readl(agp_bridge->gatt_table+j); /* PCI Posting. */ | |
91 | } | |
92 | amd64_tlbflush(mem); | |
93 | return 0; | |
94 | } | |
95 | ||
96 | /* | |
97 | * This hack alters the order element according | |
98 | * to the size of a long. It sucks. I totally disown this, even | |
99 | * though it does appear to work for the most part. | |
100 | */ | |
101 | static struct aper_size_info_32 amd64_aperture_sizes[7] = | |
102 | { | |
103 | {32, 8192, 3+(sizeof(long)/8), 0 }, | |
104 | {64, 16384, 4+(sizeof(long)/8), 1<<1 }, | |
105 | {128, 32768, 5+(sizeof(long)/8), 1<<2 }, | |
106 | {256, 65536, 6+(sizeof(long)/8), 1<<1 | 1<<2 }, | |
107 | {512, 131072, 7+(sizeof(long)/8), 1<<3 }, | |
108 | {1024, 262144, 8+(sizeof(long)/8), 1<<1 | 1<<3}, | |
109 | {2048, 524288, 9+(sizeof(long)/8), 1<<2 | 1<<3} | |
110 | }; | |
111 | ||
112 | ||
113 | /* | |
114 | * Get the current Aperture size from the x86-64. | |
115 | * Note, that there may be multiple x86-64's, but we just return | |
116 | * the value from the first one we find. The set_size functions | |
117 | * keep the rest coherent anyway. Or at least should do. | |
118 | */ | |
119 | static int amd64_fetch_size(void) | |
120 | { | |
121 | struct pci_dev *dev; | |
122 | int i; | |
123 | u32 temp; | |
124 | struct aper_size_info_32 *values; | |
125 | ||
a32073bf | 126 | dev = k8_northbridges[0]; |
1da177e4 LT |
127 | if (dev==NULL) |
128 | return 0; | |
129 | ||
130 | pci_read_config_dword(dev, AMD64_GARTAPERTURECTL, &temp); | |
131 | temp = (temp & 0xe); | |
132 | values = A_SIZE_32(amd64_aperture_sizes); | |
133 | ||
134 | for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) { | |
135 | if (temp == values[i].size_value) { | |
136 | agp_bridge->previous_size = | |
137 | agp_bridge->current_size = (void *) (values + i); | |
138 | ||
139 | agp_bridge->aperture_size_idx = i; | |
140 | return values[i].size; | |
141 | } | |
142 | } | |
143 | return 0; | |
144 | } | |
145 | ||
146 | /* | |
147 | * In a multiprocessor x86-64 system, this function gets | |
148 | * called once for each CPU. | |
149 | */ | |
aa134f1b | 150 | static u64 amd64_configure(struct pci_dev *hammer, u64 gatt_table) |
1da177e4 LT |
151 | { |
152 | u64 aperturebase; | |
153 | u32 tmp; | |
3bb6fbf9 | 154 | u64 aper_base; |
1da177e4 LT |
155 | |
156 | /* Address to map to */ | |
3bb6fbf9 | 157 | pci_read_config_dword(hammer, AMD64_GARTAPERTUREBASE, &tmp); |
1da177e4 LT |
158 | aperturebase = tmp << 25; |
159 | aper_base = (aperturebase & PCI_BASE_ADDRESS_MEM_MASK); | |
160 | ||
3bb6fbf9 | 161 | enable_gart_translation(hammer, gatt_table); |
1da177e4 | 162 | |
1da177e4 LT |
163 | return aper_base; |
164 | } | |
165 | ||
166 | ||
e5524f35 | 167 | static const struct aper_size_info_32 amd_8151_sizes[7] = |
1da177e4 LT |
168 | { |
169 | {2048, 524288, 9, 0x00000000 }, /* 0 0 0 0 0 0 */ | |
170 | {1024, 262144, 8, 0x00000400 }, /* 1 0 0 0 0 0 */ | |
171 | {512, 131072, 7, 0x00000600 }, /* 1 1 0 0 0 0 */ | |
172 | {256, 65536, 6, 0x00000700 }, /* 1 1 1 0 0 0 */ | |
173 | {128, 32768, 5, 0x00000720 }, /* 1 1 1 1 0 0 */ | |
174 | {64, 16384, 4, 0x00000730 }, /* 1 1 1 1 1 0 */ | |
6a92a4e0 | 175 | {32, 8192, 3, 0x00000738 } /* 1 1 1 1 1 1 */ |
1da177e4 LT |
176 | }; |
177 | ||
178 | static int amd_8151_configure(void) | |
179 | { | |
07eee78e | 180 | unsigned long gatt_bus = virt_to_gart(agp_bridge->gatt_table_real); |
a32073bf | 181 | int i; |
1da177e4 LT |
182 | |
183 | /* Configure AGP regs in each x86-64 host bridge. */ | |
a32073bf | 184 | for (i = 0; i < num_k8_northbridges; i++) { |
1da177e4 | 185 | agp_bridge->gart_bus_addr = |
a32073bf | 186 | amd64_configure(k8_northbridges[i], gatt_bus); |
1da177e4 | 187 | } |
a32073bf | 188 | k8_flush_garts(); |
1da177e4 LT |
189 | return 0; |
190 | } | |
191 | ||
192 | ||
193 | static void amd64_cleanup(void) | |
194 | { | |
195 | u32 tmp; | |
a32073bf AK |
196 | int i; |
197 | for (i = 0; i < num_k8_northbridges; i++) { | |
198 | struct pci_dev *dev = k8_northbridges[i]; | |
1da177e4 | 199 | /* disable gart translation */ |
3bb6fbf9 | 200 | pci_read_config_dword(dev, AMD64_GARTAPERTURECTL, &tmp); |
1da177e4 | 201 | tmp &= ~AMD64_GARTEN; |
3bb6fbf9 | 202 | pci_write_config_dword(dev, AMD64_GARTAPERTURECTL, tmp); |
1da177e4 LT |
203 | } |
204 | } | |
205 | ||
206 | ||
e5524f35 | 207 | static const struct agp_bridge_driver amd_8151_driver = { |
1da177e4 LT |
208 | .owner = THIS_MODULE, |
209 | .aperture_sizes = amd_8151_sizes, | |
210 | .size_type = U32_APER_SIZE, | |
211 | .num_aperture_sizes = 7, | |
212 | .configure = amd_8151_configure, | |
213 | .fetch_size = amd64_fetch_size, | |
214 | .cleanup = amd64_cleanup, | |
215 | .tlb_flush = amd64_tlbflush, | |
216 | .mask_memory = agp_generic_mask_memory, | |
217 | .masks = NULL, | |
218 | .agp_enable = agp_generic_enable, | |
219 | .cache_flush = global_cache_flush, | |
220 | .create_gatt_table = agp_generic_create_gatt_table, | |
221 | .free_gatt_table = agp_generic_free_gatt_table, | |
222 | .insert_memory = amd64_insert_memory, | |
223 | .remove_memory = agp_generic_remove_memory, | |
224 | .alloc_by_type = agp_generic_alloc_by_type, | |
225 | .free_by_type = agp_generic_free_by_type, | |
226 | .agp_alloc_page = agp_generic_alloc_page, | |
5f310b63 | 227 | .agp_alloc_pages = agp_generic_alloc_pages, |
1da177e4 | 228 | .agp_destroy_page = agp_generic_destroy_page, |
5f310b63 | 229 | .agp_destroy_pages = agp_generic_destroy_pages, |
a030ce44 | 230 | .agp_type_to_mask_type = agp_generic_type_to_mask_type, |
1da177e4 LT |
231 | }; |
232 | ||
233 | /* Some basic sanity checks for the aperture. */ | |
0abbc78a | 234 | static int __devinit agp_aperture_valid(u64 aper, u32 size) |
1da177e4 | 235 | { |
0abbc78a | 236 | if (!aperture_valid(aper, size, 32*1024*1024)) |
1da177e4 | 237 | return 0; |
1da177e4 LT |
238 | |
239 | /* Request the Aperture. This catches cases when someone else | |
240 | already put a mapping in there - happens with some very broken BIOS | |
241 | ||
242 | Maybe better to use pci_assign_resource/pci_enable_device instead | |
243 | trusting the bridges? */ | |
244 | if (!aperture_resource && | |
245 | !(aperture_resource = request_mem_region(aper, size, "aperture"))) { | |
246 | printk(KERN_ERR PFX "Aperture conflicts with PCI mapping.\n"); | |
247 | return 0; | |
248 | } | |
249 | return 1; | |
250 | } | |
251 | ||
252 | /* | |
253 | * W*s centric BIOS sometimes only set up the aperture in the AGP | |
254 | * bridge, not the northbridge. On AMD64 this is handled early | |
a813ce43 | 255 | * in aperture.c, but when IOMMU is not enabled or we run |
1da177e4 LT |
256 | * on a 32bit kernel this needs to be redone. |
257 | * Unfortunately it is impossible to fix the aperture here because it's too late | |
258 | * to allocate that much memory. But at least error out cleanly instead of | |
259 | * crashing. | |
260 | */ | |
261 | static __devinit int fix_northbridge(struct pci_dev *nb, struct pci_dev *agp, | |
262 | u16 cap) | |
263 | { | |
264 | u32 aper_low, aper_hi; | |
265 | u64 aper, nb_aper; | |
266 | int order = 0; | |
267 | u32 nb_order, nb_base; | |
268 | u16 apsize; | |
269 | ||
3bb6fbf9 | 270 | pci_read_config_dword(nb, AMD64_GARTAPERTURECTL, &nb_order); |
1da177e4 | 271 | nb_order = (nb_order >> 1) & 7; |
3bb6fbf9 | 272 | pci_read_config_dword(nb, AMD64_GARTAPERTUREBASE, &nb_base); |
1da177e4 | 273 | nb_aper = nb_base << 25; |
0abbc78a | 274 | if (agp_aperture_valid(nb_aper, (32*1024*1024)<<nb_order)) { |
1da177e4 LT |
275 | return 0; |
276 | } | |
277 | ||
278 | /* Northbridge seems to contain crap. Try the AGP bridge. */ | |
279 | ||
280 | pci_read_config_word(agp, cap+0x14, &apsize); | |
281 | if (apsize == 0xffff) | |
282 | return -1; | |
283 | ||
284 | apsize &= 0xfff; | |
285 | /* Some BIOS use weird encodings not in the AGPv3 table. */ | |
286 | if (apsize & 0xff) | |
287 | apsize |= 0xf00; | |
288 | order = 7 - hweight16(apsize); | |
289 | ||
290 | pci_read_config_dword(agp, 0x10, &aper_low); | |
291 | pci_read_config_dword(agp, 0x14, &aper_hi); | |
292 | aper = (aper_low & ~((1<<22)-1)) | ((u64)aper_hi << 32); | |
1edc1ab3 YL |
293 | |
294 | /* | |
295 | * On some sick chips APSIZE is 0. This means it wants 4G | |
296 | * so let double check that order, and lets trust the AMD NB settings | |
297 | */ | |
8c9fd91a | 298 | if (order >=0 && aper + (32ULL<<(20 + order)) > 0x100000000ULL) { |
e3cf6951 BH |
299 | dev_info(&agp->dev, "aperture size %u MB is not right, using settings from NB\n", |
300 | 32 << order); | |
1edc1ab3 YL |
301 | order = nb_order; |
302 | } | |
303 | ||
e3cf6951 BH |
304 | dev_info(&agp->dev, "aperture from AGP @ %Lx size %u MB\n", |
305 | aper, 32 << order); | |
0abbc78a | 306 | if (order < 0 || !agp_aperture_valid(aper, (32*1024*1024)<<order)) |
1da177e4 LT |
307 | return -1; |
308 | ||
3bb6fbf9 PM |
309 | pci_write_config_dword(nb, AMD64_GARTAPERTURECTL, order << 1); |
310 | pci_write_config_dword(nb, AMD64_GARTAPERTUREBASE, aper >> 25); | |
1da177e4 LT |
311 | |
312 | return 0; | |
313 | } | |
314 | ||
315 | static __devinit int cache_nbs (struct pci_dev *pdev, u32 cap_ptr) | |
316 | { | |
a32073bf AK |
317 | int i; |
318 | ||
319 | if (cache_k8_northbridges() < 0) | |
320 | return -ENODEV; | |
321 | ||
322 | i = 0; | |
323 | for (i = 0; i < num_k8_northbridges; i++) { | |
324 | struct pci_dev *dev = k8_northbridges[i]; | |
325 | if (fix_northbridge(dev, pdev, cap_ptr) < 0) { | |
e3cf6951 | 326 | dev_err(&dev->dev, "no usable aperture found\n"); |
1da177e4 LT |
327 | #ifdef __x86_64__ |
328 | /* should port this to i386 */ | |
e3cf6951 | 329 | dev_err(&dev->dev, "consider rebooting with iommu=memaper=2 to get a good aperture\n"); |
1da177e4 LT |
330 | #endif |
331 | return -1; | |
332 | } | |
1da177e4 | 333 | } |
a32073bf | 334 | return 0; |
1da177e4 LT |
335 | } |
336 | ||
337 | /* Handle AMD 8151 quirks */ | |
338 | static void __devinit amd8151_init(struct pci_dev *pdev, struct agp_bridge_data *bridge) | |
339 | { | |
340 | char *revstring; | |
1da177e4 | 341 | |
44c10138 | 342 | switch (pdev->revision) { |
1da177e4 LT |
343 | case 0x01: revstring="A0"; break; |
344 | case 0x02: revstring="A1"; break; | |
345 | case 0x11: revstring="B0"; break; | |
346 | case 0x12: revstring="B1"; break; | |
347 | case 0x13: revstring="B2"; break; | |
348 | case 0x14: revstring="B3"; break; | |
349 | default: revstring="??"; break; | |
350 | } | |
351 | ||
e3cf6951 | 352 | dev_info(&pdev->dev, "AMD 8151 AGP Bridge rev %s\n", revstring); |
1da177e4 LT |
353 | |
354 | /* | |
355 | * Work around errata. | |
356 | * Chips before B2 stepping incorrectly reporting v3.5 | |
357 | */ | |
44c10138 | 358 | if (pdev->revision < 0x13) { |
e3cf6951 | 359 | dev_info(&pdev->dev, "correcting AGP revision (reports 3.5, is really 3.0)\n"); |
1da177e4 LT |
360 | bridge->major_version = 3; |
361 | bridge->minor_version = 0; | |
362 | } | |
363 | } | |
364 | ||
365 | ||
a42ab7f2 | 366 | static const struct aper_size_info_32 uli_sizes[7] = |
1da177e4 LT |
367 | { |
368 | {256, 65536, 6, 10}, | |
369 | {128, 32768, 5, 9}, | |
370 | {64, 16384, 4, 8}, | |
371 | {32, 8192, 3, 7}, | |
372 | {16, 4096, 2, 6}, | |
373 | {8, 2048, 1, 4}, | |
374 | {4, 1024, 0, 3} | |
375 | }; | |
376 | static int __devinit uli_agp_init(struct pci_dev *pdev) | |
377 | { | |
378 | u32 httfea,baseaddr,enuscr; | |
379 | struct pci_dev *dev1; | |
380 | int i; | |
381 | unsigned size = amd64_fetch_size(); | |
e3cf6951 BH |
382 | |
383 | dev_info(&pdev->dev, "setting up ULi AGP\n"); | |
7357db12 | 384 | dev1 = pci_get_slot (pdev->bus,PCI_DEVFN(0,0)); |
1da177e4 | 385 | if (dev1 == NULL) { |
e3cf6951 | 386 | dev_info(&pdev->dev, "can't find ULi secondary device\n"); |
1da177e4 LT |
387 | return -ENODEV; |
388 | } | |
389 | ||
390 | for (i = 0; i < ARRAY_SIZE(uli_sizes); i++) | |
391 | if (uli_sizes[i].size == size) | |
392 | break; | |
393 | ||
394 | if (i == ARRAY_SIZE(uli_sizes)) { | |
e3cf6951 | 395 | dev_info(&pdev->dev, "no ULi size found for %d\n", size); |
1da177e4 LT |
396 | return -ENODEV; |
397 | } | |
398 | ||
399 | /* shadow x86-64 registers into ULi registers */ | |
a32073bf | 400 | pci_read_config_dword (k8_northbridges[0], AMD64_GARTAPERTUREBASE, &httfea); |
1da177e4 LT |
401 | |
402 | /* if x86-64 aperture base is beyond 4G, exit here */ | |
403 | if ((httfea & 0x7fff) >> (32 - 25)) | |
404 | return -ENODEV; | |
405 | ||
406 | httfea = (httfea& 0x7fff) << 25; | |
407 | ||
408 | pci_read_config_dword(pdev, ULI_X86_64_BASE_ADDR, &baseaddr); | |
409 | baseaddr&= ~PCI_BASE_ADDRESS_MEM_MASK; | |
410 | baseaddr|= httfea; | |
411 | pci_write_config_dword(pdev, ULI_X86_64_BASE_ADDR, baseaddr); | |
412 | ||
413 | enuscr= httfea+ (size * 1024 * 1024) - 1; | |
414 | pci_write_config_dword(dev1, ULI_X86_64_HTT_FEA_REG, httfea); | |
415 | pci_write_config_dword(dev1, ULI_X86_64_ENU_SCR_REG, enuscr); | |
7357db12 AC |
416 | |
417 | pci_dev_put(dev1); | |
1da177e4 LT |
418 | return 0; |
419 | } | |
420 | ||
421 | ||
a42ab7f2 | 422 | static const struct aper_size_info_32 nforce3_sizes[5] = |
1da177e4 LT |
423 | { |
424 | {512, 131072, 7, 0x00000000 }, | |
425 | {256, 65536, 6, 0x00000008 }, | |
426 | {128, 32768, 5, 0x0000000C }, | |
427 | {64, 16384, 4, 0x0000000E }, | |
428 | {32, 8192, 3, 0x0000000F } | |
429 | }; | |
430 | ||
431 | /* Handle shadow device of the Nvidia NForce3 */ | |
432 | /* CHECK-ME original 2.4 version set up some IORRs. Check if that is needed. */ | |
da015a67 | 433 | static int nforce3_agp_init(struct pci_dev *pdev) |
1da177e4 LT |
434 | { |
435 | u32 tmp, apbase, apbar, aplimit; | |
436 | struct pci_dev *dev1; | |
437 | int i; | |
438 | unsigned size = amd64_fetch_size(); | |
439 | ||
e3cf6951 | 440 | dev_info(&pdev->dev, "setting up Nforce3 AGP\n"); |
1da177e4 | 441 | |
7357db12 | 442 | dev1 = pci_get_slot(pdev->bus, PCI_DEVFN(11, 0)); |
1da177e4 | 443 | if (dev1 == NULL) { |
e3cf6951 | 444 | dev_info(&pdev->dev, "can't find Nforce3 secondary device\n"); |
1da177e4 LT |
445 | return -ENODEV; |
446 | } | |
447 | ||
448 | for (i = 0; i < ARRAY_SIZE(nforce3_sizes); i++) | |
449 | if (nforce3_sizes[i].size == size) | |
450 | break; | |
451 | ||
452 | if (i == ARRAY_SIZE(nforce3_sizes)) { | |
e3cf6951 | 453 | dev_info(&pdev->dev, "no NForce3 size found for %d\n", size); |
1da177e4 LT |
454 | return -ENODEV; |
455 | } | |
456 | ||
457 | pci_read_config_dword(dev1, NVIDIA_X86_64_1_APSIZE, &tmp); | |
458 | tmp &= ~(0xf); | |
459 | tmp |= nforce3_sizes[i].size_value; | |
460 | pci_write_config_dword(dev1, NVIDIA_X86_64_1_APSIZE, tmp); | |
461 | ||
462 | /* shadow x86-64 registers into NVIDIA registers */ | |
a32073bf | 463 | pci_read_config_dword (k8_northbridges[0], AMD64_GARTAPERTUREBASE, &apbase); |
1da177e4 LT |
464 | |
465 | /* if x86-64 aperture base is beyond 4G, exit here */ | |
b41c82eb | 466 | if ( (apbase & 0x7fff) >> (32 - 25) ) { |
e3cf6951 | 467 | dev_info(&pdev->dev, "aperture base > 4G\n"); |
b41c82eb DJ |
468 | return -ENODEV; |
469 | } | |
1da177e4 LT |
470 | |
471 | apbase = (apbase & 0x7fff) << 25; | |
472 | ||
473 | pci_read_config_dword(pdev, NVIDIA_X86_64_0_APBASE, &apbar); | |
474 | apbar &= ~PCI_BASE_ADDRESS_MEM_MASK; | |
475 | apbar |= apbase; | |
476 | pci_write_config_dword(pdev, NVIDIA_X86_64_0_APBASE, apbar); | |
477 | ||
478 | aplimit = apbase + (size * 1024 * 1024) - 1; | |
479 | pci_write_config_dword(dev1, NVIDIA_X86_64_1_APBASE1, apbase); | |
480 | pci_write_config_dword(dev1, NVIDIA_X86_64_1_APLIMIT1, aplimit); | |
481 | pci_write_config_dword(dev1, NVIDIA_X86_64_1_APBASE2, apbase); | |
482 | pci_write_config_dword(dev1, NVIDIA_X86_64_1_APLIMIT2, aplimit); | |
483 | ||
7357db12 AC |
484 | pci_dev_put(dev1); |
485 | ||
1da177e4 LT |
486 | return 0; |
487 | } | |
488 | ||
489 | static int __devinit agp_amd64_probe(struct pci_dev *pdev, | |
490 | const struct pci_device_id *ent) | |
491 | { | |
492 | struct agp_bridge_data *bridge; | |
493 | u8 cap_ptr; | |
55814b74 | 494 | int err; |
1da177e4 LT |
495 | |
496 | cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP); | |
497 | if (!cap_ptr) | |
498 | return -ENODEV; | |
499 | ||
500 | /* Could check for AGPv3 here */ | |
501 | ||
502 | bridge = agp_alloc_bridge(); | |
503 | if (!bridge) | |
504 | return -ENOMEM; | |
505 | ||
506 | if (pdev->vendor == PCI_VENDOR_ID_AMD && | |
507 | pdev->device == PCI_DEVICE_ID_AMD_8151_0) { | |
508 | amd8151_init(pdev, bridge); | |
509 | } else { | |
e3cf6951 BH |
510 | dev_info(&pdev->dev, "AGP bridge [%04x/%04x]\n", |
511 | pdev->vendor, pdev->device); | |
1da177e4 LT |
512 | } |
513 | ||
514 | bridge->driver = &amd_8151_driver; | |
515 | bridge->dev = pdev; | |
516 | bridge->capndx = cap_ptr; | |
517 | ||
518 | /* Fill in the mode register */ | |
519 | pci_read_config_dword(pdev, bridge->capndx+PCI_AGP_STATUS, &bridge->mode); | |
520 | ||
521 | if (cache_nbs(pdev, cap_ptr) == -1) { | |
522 | agp_put_bridge(bridge); | |
523 | return -ENODEV; | |
524 | } | |
525 | ||
526 | if (pdev->vendor == PCI_VENDOR_ID_NVIDIA) { | |
527 | int ret = nforce3_agp_init(pdev); | |
528 | if (ret) { | |
529 | agp_put_bridge(bridge); | |
530 | return ret; | |
531 | } | |
532 | } | |
533 | ||
534 | if (pdev->vendor == PCI_VENDOR_ID_AL) { | |
535 | int ret = uli_agp_init(pdev); | |
536 | if (ret) { | |
537 | agp_put_bridge(bridge); | |
538 | return ret; | |
539 | } | |
540 | } | |
541 | ||
542 | pci_set_drvdata(pdev, bridge); | |
55814b74 BH |
543 | err = agp_add_bridge(bridge); |
544 | if (err < 0) | |
545 | return err; | |
546 | ||
547 | agp_bridges_found++; | |
548 | return 0; | |
1da177e4 LT |
549 | } |
550 | ||
551 | static void __devexit agp_amd64_remove(struct pci_dev *pdev) | |
552 | { | |
553 | struct agp_bridge_data *bridge = pci_get_drvdata(pdev); | |
554 | ||
07eee78e | 555 | release_mem_region(virt_to_gart(bridge->gatt_table_real), |
1da177e4 LT |
556 | amd64_aperture_sizes[bridge->aperture_size_idx].size); |
557 | agp_remove_bridge(bridge); | |
558 | agp_put_bridge(bridge); | |
559 | } | |
560 | ||
90be4b49 AM |
561 | #ifdef CONFIG_PM |
562 | ||
563 | static int agp_amd64_suspend(struct pci_dev *pdev, pm_message_t state) | |
564 | { | |
565 | pci_save_state(pdev); | |
566 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
567 | ||
568 | return 0; | |
569 | } | |
570 | ||
571 | static int agp_amd64_resume(struct pci_dev *pdev) | |
572 | { | |
573 | pci_set_power_state(pdev, PCI_D0); | |
574 | pci_restore_state(pdev); | |
575 | ||
ca2797ff DJ |
576 | if (pdev->vendor == PCI_VENDOR_ID_NVIDIA) |
577 | nforce3_agp_init(pdev); | |
578 | ||
90be4b49 AM |
579 | return amd_8151_configure(); |
580 | } | |
581 | ||
582 | #endif /* CONFIG_PM */ | |
583 | ||
1da177e4 LT |
584 | static struct pci_device_id agp_amd64_pci_table[] = { |
585 | { | |
586 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
587 | .class_mask = ~0, | |
588 | .vendor = PCI_VENDOR_ID_AMD, | |
589 | .device = PCI_DEVICE_ID_AMD_8151_0, | |
590 | .subvendor = PCI_ANY_ID, | |
591 | .subdevice = PCI_ANY_ID, | |
592 | }, | |
593 | /* ULi M1689 */ | |
594 | { | |
595 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
596 | .class_mask = ~0, | |
597 | .vendor = PCI_VENDOR_ID_AL, | |
598 | .device = PCI_DEVICE_ID_AL_M1689, | |
599 | .subvendor = PCI_ANY_ID, | |
600 | .subdevice = PCI_ANY_ID, | |
601 | }, | |
602 | /* VIA K8T800Pro */ | |
603 | { | |
604 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
605 | .class_mask = ~0, | |
606 | .vendor = PCI_VENDOR_ID_VIA, | |
607 | .device = PCI_DEVICE_ID_VIA_K8T800PRO_0, | |
608 | .subvendor = PCI_ANY_ID, | |
609 | .subdevice = PCI_ANY_ID, | |
610 | }, | |
611 | /* VIA K8T800 */ | |
612 | { | |
613 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
614 | .class_mask = ~0, | |
615 | .vendor = PCI_VENDOR_ID_VIA, | |
616 | .device = PCI_DEVICE_ID_VIA_8385_0, | |
617 | .subvendor = PCI_ANY_ID, | |
618 | .subdevice = PCI_ANY_ID, | |
619 | }, | |
620 | /* VIA K8M800 / K8N800 */ | |
621 | { | |
622 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
623 | .class_mask = ~0, | |
624 | .vendor = PCI_VENDOR_ID_VIA, | |
625 | .device = PCI_DEVICE_ID_VIA_8380_0, | |
626 | .subvendor = PCI_ANY_ID, | |
627 | .subdevice = PCI_ANY_ID, | |
628 | }, | |
d5cb8d38 GM |
629 | /* VIA K8M890 / K8N890 */ |
630 | { | |
631 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
632 | .class_mask = ~0, | |
633 | .vendor = PCI_VENDOR_ID_VIA, | |
43ed41f6 | 634 | .device = PCI_DEVICE_ID_VIA_VT3336, |
d5cb8d38 GM |
635 | .subvendor = PCI_ANY_ID, |
636 | .subdevice = PCI_ANY_ID, | |
637 | }, | |
1da177e4 LT |
638 | /* VIA K8T890 */ |
639 | { | |
640 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
641 | .class_mask = ~0, | |
642 | .vendor = PCI_VENDOR_ID_VIA, | |
643 | .device = PCI_DEVICE_ID_VIA_3238_0, | |
644 | .subvendor = PCI_ANY_ID, | |
645 | .subdevice = PCI_ANY_ID, | |
646 | }, | |
647 | /* VIA K8T800/K8M800/K8N800 */ | |
648 | { | |
649 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
650 | .class_mask = ~0, | |
651 | .vendor = PCI_VENDOR_ID_VIA, | |
652 | .device = PCI_DEVICE_ID_VIA_838X_1, | |
653 | .subvendor = PCI_ANY_ID, | |
654 | .subdevice = PCI_ANY_ID, | |
655 | }, | |
656 | /* NForce3 */ | |
657 | { | |
658 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
659 | .class_mask = ~0, | |
660 | .vendor = PCI_VENDOR_ID_NVIDIA, | |
661 | .device = PCI_DEVICE_ID_NVIDIA_NFORCE3, | |
662 | .subvendor = PCI_ANY_ID, | |
663 | .subdevice = PCI_ANY_ID, | |
664 | }, | |
665 | { | |
666 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
667 | .class_mask = ~0, | |
668 | .vendor = PCI_VENDOR_ID_NVIDIA, | |
669 | .device = PCI_DEVICE_ID_NVIDIA_NFORCE3S, | |
670 | .subvendor = PCI_ANY_ID, | |
671 | .subdevice = PCI_ANY_ID, | |
672 | }, | |
673 | /* SIS 755 */ | |
674 | { | |
675 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
676 | .class_mask = ~0, | |
677 | .vendor = PCI_VENDOR_ID_SI, | |
678 | .device = PCI_DEVICE_ID_SI_755, | |
679 | .subvendor = PCI_ANY_ID, | |
680 | .subdevice = PCI_ANY_ID, | |
681 | }, | |
2fa938b8 DJ |
682 | /* SIS 760 */ |
683 | { | |
684 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
685 | .class_mask = ~0, | |
686 | .vendor = PCI_VENDOR_ID_SI, | |
687 | .device = PCI_DEVICE_ID_SI_760, | |
688 | .subvendor = PCI_ANY_ID, | |
689 | .subdevice = PCI_ANY_ID, | |
690 | }, | |
870b7681 AK |
691 | /* ALI/ULI M1695 */ |
692 | { | |
693 | .class = (PCI_CLASS_BRIDGE_HOST << 8), | |
694 | .class_mask = ~0, | |
695 | .vendor = PCI_VENDOR_ID_AL, | |
5c48b0e3 | 696 | .device = 0x1695, |
870b7681 AK |
697 | .subvendor = PCI_ANY_ID, |
698 | .subdevice = PCI_ANY_ID, | |
699 | }, | |
700 | ||
1da177e4 LT |
701 | { } |
702 | }; | |
703 | ||
704 | MODULE_DEVICE_TABLE(pci, agp_amd64_pci_table); | |
705 | ||
706 | static struct pci_driver agp_amd64_pci_driver = { | |
707 | .name = "agpgart-amd64", | |
708 | .id_table = agp_amd64_pci_table, | |
709 | .probe = agp_amd64_probe, | |
710 | .remove = agp_amd64_remove, | |
90be4b49 AM |
711 | #ifdef CONFIG_PM |
712 | .suspend = agp_amd64_suspend, | |
713 | .resume = agp_amd64_resume, | |
714 | #endif | |
1da177e4 LT |
715 | }; |
716 | ||
717 | ||
718 | /* Not static due to IOMMU code calling it early. */ | |
719 | int __init agp_amd64_init(void) | |
720 | { | |
721 | int err = 0; | |
1da177e4 LT |
722 | |
723 | if (agp_off) | |
724 | return -EINVAL; | |
55814b74 BH |
725 | err = pci_register_driver(&agp_amd64_pci_driver); |
726 | if (err < 0) | |
727 | return err; | |
728 | ||
729 | if (agp_bridges_found == 0) { | |
1da177e4 LT |
730 | struct pci_dev *dev; |
731 | if (!agp_try_unsupported && !agp_try_unsupported_boot) { | |
732 | printk(KERN_INFO PFX "No supported AGP bridge found.\n"); | |
733 | #ifdef MODULE | |
734 | printk(KERN_INFO PFX "You can try agp_try_unsupported=1\n"); | |
735 | #else | |
736 | printk(KERN_INFO PFX "You can boot with agp=try_unsupported\n"); | |
737 | #endif | |
738 | return -ENODEV; | |
739 | } | |
740 | ||
741 | /* First check that we have at least one AMD64 NB */ | |
a32073bf | 742 | if (!pci_dev_present(k8_nb_ids)) |
1da177e4 LT |
743 | return -ENODEV; |
744 | ||
745 | /* Look for any AGP bridge */ | |
746 | dev = NULL; | |
747 | err = -ENODEV; | |
748 | for_each_pci_dev(dev) { | |
749 | if (!pci_find_capability(dev, PCI_CAP_ID_AGP)) | |
750 | continue; | |
751 | /* Only one bridge supported right now */ | |
752 | if (agp_amd64_probe(dev, NULL) == 0) { | |
753 | err = 0; | |
754 | break; | |
755 | } | |
756 | } | |
757 | } | |
758 | return err; | |
759 | } | |
760 | ||
761 | static void __exit agp_amd64_cleanup(void) | |
762 | { | |
763 | if (aperture_resource) | |
764 | release_resource(aperture_resource); | |
765 | pci_unregister_driver(&agp_amd64_pci_driver); | |
766 | } | |
767 | ||
768 | /* On AMD64 the PCI driver needs to initialize this driver early | |
769 | for the IOMMU, so it has to be called via a backdoor. */ | |
966396d3 | 770 | #ifndef CONFIG_GART_IOMMU |
1da177e4 LT |
771 | module_init(agp_amd64_init); |
772 | module_exit(agp_amd64_cleanup); | |
773 | #endif | |
774 | ||
f4432c5c | 775 | MODULE_AUTHOR("Dave Jones <davej@redhat.com>, Andi Kleen"); |
1da177e4 LT |
776 | module_param(agp_try_unsupported, bool, 0); |
777 | MODULE_LICENSE("GPL"); |