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Merge git://git.infradead.org/mtd-2.6
[deliverable/linux.git] / drivers / char / agp / uninorth-agp.c
1 /*
2 * UniNorth AGPGART routines.
3 */
4 #include <linux/module.h>
5 #include <linux/pci.h>
6 #include <linux/init.h>
7 #include <linux/pagemap.h>
8 #include <linux/agp_backend.h>
9 #include <linux/delay.h>
10 #include <asm/uninorth.h>
11 #include <asm/pci-bridge.h>
12 #include <asm/prom.h>
13 #include <asm/pmac_feature.h>
14 #include "agp.h"
15
16 /*
17 * NOTES for uninorth3 (G5 AGP) supports :
18 *
19 * There maybe also possibility to have bigger cache line size for
20 * agp (see pmac_pci.c and look for cache line). Need to be investigated
21 * by someone.
22 *
23 * PAGE size are hardcoded but this may change, see asm/page.h.
24 *
25 * Jerome Glisse <j.glisse@gmail.com>
26 */
27 static int uninorth_rev;
28 static int is_u3;
29
30
31 static int uninorth_fetch_size(void)
32 {
33 int i;
34 u32 temp;
35 struct aper_size_info_32 *values;
36
37 pci_read_config_dword(agp_bridge->dev, UNI_N_CFG_GART_BASE, &temp);
38 temp &= ~(0xfffff000);
39 values = A_SIZE_32(agp_bridge->driver->aperture_sizes);
40
41 for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) {
42 if (temp == values[i].size_value) {
43 agp_bridge->previous_size =
44 agp_bridge->current_size = (void *) (values + i);
45 agp_bridge->aperture_size_idx = i;
46 return values[i].size;
47 }
48 }
49
50 agp_bridge->previous_size =
51 agp_bridge->current_size = (void *) (values + 1);
52 agp_bridge->aperture_size_idx = 1;
53 return values[1].size;
54
55 return 0;
56 }
57
58 static void uninorth_tlbflush(struct agp_memory *mem)
59 {
60 u32 ctrl = UNI_N_CFG_GART_ENABLE;
61
62 if (is_u3)
63 ctrl |= U3_N_CFG_GART_PERFRD;
64 pci_write_config_dword(agp_bridge->dev, UNI_N_CFG_GART_CTRL,
65 ctrl | UNI_N_CFG_GART_INVAL);
66 pci_write_config_dword(agp_bridge->dev, UNI_N_CFG_GART_CTRL, ctrl);
67
68 if (uninorth_rev <= 0x30) {
69 pci_write_config_dword(agp_bridge->dev, UNI_N_CFG_GART_CTRL,
70 ctrl | UNI_N_CFG_GART_2xRESET);
71 pci_write_config_dword(agp_bridge->dev, UNI_N_CFG_GART_CTRL,
72 ctrl);
73 }
74 }
75
76 static void uninorth_cleanup(void)
77 {
78 u32 tmp;
79
80 pci_read_config_dword(agp_bridge->dev, UNI_N_CFG_GART_CTRL, &tmp);
81 if (!(tmp & UNI_N_CFG_GART_ENABLE))
82 return;
83 tmp |= UNI_N_CFG_GART_INVAL;
84 pci_write_config_dword(agp_bridge->dev, UNI_N_CFG_GART_CTRL, tmp);
85 pci_write_config_dword(agp_bridge->dev, UNI_N_CFG_GART_CTRL, 0);
86
87 if (uninorth_rev <= 0x30) {
88 pci_write_config_dword(agp_bridge->dev, UNI_N_CFG_GART_CTRL,
89 UNI_N_CFG_GART_2xRESET);
90 pci_write_config_dword(agp_bridge->dev, UNI_N_CFG_GART_CTRL,
91 0);
92 }
93 }
94
95 static int uninorth_configure(void)
96 {
97 struct aper_size_info_32 *current_size;
98
99 current_size = A_SIZE_32(agp_bridge->current_size);
100
101 printk(KERN_INFO PFX "configuring for size idx: %d\n",
102 current_size->size_value);
103
104 /* aperture size and gatt addr */
105 pci_write_config_dword(agp_bridge->dev,
106 UNI_N_CFG_GART_BASE,
107 (agp_bridge->gatt_bus_addr & 0xfffff000)
108 | current_size->size_value);
109
110 /* HACK ALERT
111 * UniNorth seem to be buggy enough not to handle properly when
112 * the AGP aperture isn't mapped at bus physical address 0
113 */
114 agp_bridge->gart_bus_addr = 0;
115 #ifdef CONFIG_PPC64
116 /* Assume U3 or later on PPC64 systems */
117 /* high 4 bits of GART physical address go in UNI_N_CFG_AGP_BASE */
118 pci_write_config_dword(agp_bridge->dev, UNI_N_CFG_AGP_BASE,
119 (agp_bridge->gatt_bus_addr >> 32) & 0xf);
120 #else
121 pci_write_config_dword(agp_bridge->dev,
122 UNI_N_CFG_AGP_BASE, agp_bridge->gart_bus_addr);
123 #endif
124
125 if (is_u3) {
126 pci_write_config_dword(agp_bridge->dev,
127 UNI_N_CFG_GART_DUMMY_PAGE,
128 agp_bridge->scratch_page_real >> 12);
129 }
130
131 return 0;
132 }
133
134 static int uninorth_insert_memory(struct agp_memory *mem, off_t pg_start,
135 int type)
136 {
137 int i, j, num_entries;
138 void *temp;
139
140 temp = agp_bridge->current_size;
141 num_entries = A_SIZE_32(temp)->num_entries;
142
143 if (type != 0 || mem->type != 0)
144 /* We know nothing of memory types */
145 return -EINVAL;
146 if ((pg_start + mem->page_count) > num_entries)
147 return -EINVAL;
148
149 j = pg_start;
150
151 while (j < (pg_start + mem->page_count)) {
152 if (agp_bridge->gatt_table[j])
153 return -EBUSY;
154 j++;
155 }
156
157 for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
158 agp_bridge->gatt_table[j] =
159 cpu_to_le32((mem->memory[i] & 0xFFFFF000UL) | 0x1UL);
160 flush_dcache_range((unsigned long)__va(mem->memory[i]),
161 (unsigned long)__va(mem->memory[i])+0x1000);
162 }
163 (void)in_le32((volatile u32*)&agp_bridge->gatt_table[pg_start]);
164 mb();
165 flush_dcache_range((unsigned long)&agp_bridge->gatt_table[pg_start],
166 (unsigned long)&agp_bridge->gatt_table[pg_start + mem->page_count]);
167
168 uninorth_tlbflush(mem);
169 return 0;
170 }
171
172 static int u3_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
173 {
174 int i, num_entries;
175 void *temp;
176 u32 *gp;
177
178 temp = agp_bridge->current_size;
179 num_entries = A_SIZE_32(temp)->num_entries;
180
181 if (type != 0 || mem->type != 0)
182 /* We know nothing of memory types */
183 return -EINVAL;
184 if ((pg_start + mem->page_count) > num_entries)
185 return -EINVAL;
186
187 gp = (u32 *) &agp_bridge->gatt_table[pg_start];
188 for (i = 0; i < mem->page_count; ++i) {
189 if (gp[i]) {
190 printk("u3_insert_memory: entry 0x%x occupied (%x)\n",
191 i, gp[i]);
192 return -EBUSY;
193 }
194 }
195
196 for (i = 0; i < mem->page_count; i++) {
197 gp[i] = (mem->memory[i] >> PAGE_SHIFT) | 0x80000000UL;
198 flush_dcache_range((unsigned long)__va(mem->memory[i]),
199 (unsigned long)__va(mem->memory[i])+0x1000);
200 }
201 mb();
202 flush_dcache_range((unsigned long)gp, (unsigned long) &gp[i]);
203 uninorth_tlbflush(mem);
204
205 return 0;
206 }
207
208 int u3_remove_memory(struct agp_memory *mem, off_t pg_start, int type)
209 {
210 size_t i;
211 u32 *gp;
212
213 if (type != 0 || mem->type != 0)
214 /* We know nothing of memory types */
215 return -EINVAL;
216
217 gp = (u32 *) &agp_bridge->gatt_table[pg_start];
218 for (i = 0; i < mem->page_count; ++i)
219 gp[i] = 0;
220 mb();
221 flush_dcache_range((unsigned long)gp, (unsigned long) &gp[i]);
222 uninorth_tlbflush(mem);
223
224 return 0;
225 }
226
227 static void uninorth_agp_enable(struct agp_bridge_data *bridge, u32 mode)
228 {
229 u32 command, scratch, status;
230 int timeout;
231
232 pci_read_config_dword(bridge->dev,
233 bridge->capndx + PCI_AGP_STATUS,
234 &status);
235
236 command = agp_collect_device_status(bridge, mode, status);
237 command |= PCI_AGP_COMMAND_AGP;
238
239 if (uninorth_rev == 0x21) {
240 /*
241 * Darwin disable AGP 4x on this revision, thus we
242 * may assume it's broken. This is an AGP2 controller.
243 */
244 command &= ~AGPSTAT2_4X;
245 }
246
247 if ((uninorth_rev >= 0x30) && (uninorth_rev <= 0x33)) {
248 /*
249 * We need to to set REQ_DEPTH to 7 for U3 versions 1.0, 2.1,
250 * 2.2 and 2.3, Darwin do so.
251 */
252 if ((command >> AGPSTAT_RQ_DEPTH_SHIFT) > 7)
253 command = (command & ~AGPSTAT_RQ_DEPTH)
254 | (7 << AGPSTAT_RQ_DEPTH_SHIFT);
255 }
256
257 uninorth_tlbflush(NULL);
258
259 timeout = 0;
260 do {
261 pci_write_config_dword(bridge->dev,
262 bridge->capndx + PCI_AGP_COMMAND,
263 command);
264 pci_read_config_dword(bridge->dev,
265 bridge->capndx + PCI_AGP_COMMAND,
266 &scratch);
267 } while ((scratch & PCI_AGP_COMMAND_AGP) == 0 && ++timeout < 1000);
268 if ((scratch & PCI_AGP_COMMAND_AGP) == 0)
269 printk(KERN_ERR PFX "failed to write UniNorth AGP"
270 " command register\n");
271
272 if (uninorth_rev >= 0x30) {
273 /* This is an AGP V3 */
274 agp_device_command(command, (status & AGPSTAT_MODE_3_0));
275 } else {
276 /* AGP V2 */
277 agp_device_command(command, 0);
278 }
279
280 uninorth_tlbflush(NULL);
281 }
282
283 #ifdef CONFIG_PM
284 /*
285 * These Power Management routines are _not_ called by the normal PCI PM layer,
286 * but directly by the video driver through function pointers in the device
287 * tree.
288 */
289 static int agp_uninorth_suspend(struct pci_dev *pdev)
290 {
291 struct agp_bridge_data *bridge;
292 u32 cmd;
293 u8 agp;
294 struct pci_dev *device = NULL;
295
296 bridge = agp_find_bridge(pdev);
297 if (bridge == NULL)
298 return -ENODEV;
299
300 /* Only one suspend supported */
301 if (bridge->dev_private_data)
302 return 0;
303
304 /* turn off AGP on the video chip, if it was enabled */
305 for_each_pci_dev(device) {
306 /* Don't touch the bridge yet, device first */
307 if (device == pdev)
308 continue;
309 /* Only deal with devices on the same bus here, no Mac has a P2P
310 * bridge on the AGP port, and mucking around the entire PCI
311 * tree is source of problems on some machines because of a bug
312 * in some versions of pci_find_capability() when hitting a dead
313 * device
314 */
315 if (device->bus != pdev->bus)
316 continue;
317 agp = pci_find_capability(device, PCI_CAP_ID_AGP);
318 if (!agp)
319 continue;
320 pci_read_config_dword(device, agp + PCI_AGP_COMMAND, &cmd);
321 if (!(cmd & PCI_AGP_COMMAND_AGP))
322 continue;
323 printk("uninorth-agp: disabling AGP on device %s\n",
324 pci_name(device));
325 cmd &= ~PCI_AGP_COMMAND_AGP;
326 pci_write_config_dword(device, agp + PCI_AGP_COMMAND, cmd);
327 }
328
329 /* turn off AGP on the bridge */
330 agp = pci_find_capability(pdev, PCI_CAP_ID_AGP);
331 pci_read_config_dword(pdev, agp + PCI_AGP_COMMAND, &cmd);
332 bridge->dev_private_data = (void *)(long)cmd;
333 if (cmd & PCI_AGP_COMMAND_AGP) {
334 printk("uninorth-agp: disabling AGP on bridge %s\n",
335 pci_name(pdev));
336 cmd &= ~PCI_AGP_COMMAND_AGP;
337 pci_write_config_dword(pdev, agp + PCI_AGP_COMMAND, cmd);
338 }
339 /* turn off the GART */
340 uninorth_cleanup();
341
342 return 0;
343 }
344
345 static int agp_uninorth_resume(struct pci_dev *pdev)
346 {
347 struct agp_bridge_data *bridge;
348 u32 command;
349
350 bridge = agp_find_bridge(pdev);
351 if (bridge == NULL)
352 return -ENODEV;
353
354 command = (long)bridge->dev_private_data;
355 bridge->dev_private_data = NULL;
356 if (!(command & PCI_AGP_COMMAND_AGP))
357 return 0;
358
359 uninorth_agp_enable(bridge, command);
360
361 return 0;
362 }
363 #endif /* CONFIG_PM */
364
365 static int uninorth_create_gatt_table(struct agp_bridge_data *bridge)
366 {
367 char *table;
368 char *table_end;
369 int size;
370 int page_order;
371 int num_entries;
372 int i;
373 void *temp;
374 struct page *page;
375
376 /* We can't handle 2 level gatt's */
377 if (bridge->driver->size_type == LVL2_APER_SIZE)
378 return -EINVAL;
379
380 table = NULL;
381 i = bridge->aperture_size_idx;
382 temp = bridge->current_size;
383 size = page_order = num_entries = 0;
384
385 do {
386 size = A_SIZE_32(temp)->size;
387 page_order = A_SIZE_32(temp)->page_order;
388 num_entries = A_SIZE_32(temp)->num_entries;
389
390 table = (char *) __get_free_pages(GFP_KERNEL, page_order);
391
392 if (table == NULL) {
393 i++;
394 bridge->current_size = A_IDX32(bridge);
395 } else {
396 bridge->aperture_size_idx = i;
397 }
398 } while (!table && (i < bridge->driver->num_aperture_sizes));
399
400 if (table == NULL)
401 return -ENOMEM;
402
403 table_end = table + ((PAGE_SIZE * (1 << page_order)) - 1);
404
405 for (page = virt_to_page(table); page <= virt_to_page(table_end); page++)
406 SetPageReserved(page);
407
408 bridge->gatt_table_real = (u32 *) table;
409 bridge->gatt_table = (u32 *)table;
410 bridge->gatt_bus_addr = virt_to_gart(table);
411
412 for (i = 0; i < num_entries; i++)
413 bridge->gatt_table[i] = 0;
414
415 flush_dcache_range((unsigned long)table, (unsigned long)table_end);
416
417 return 0;
418 }
419
420 static int uninorth_free_gatt_table(struct agp_bridge_data *bridge)
421 {
422 int page_order;
423 char *table, *table_end;
424 void *temp;
425 struct page *page;
426
427 temp = bridge->current_size;
428 page_order = A_SIZE_32(temp)->page_order;
429
430 /* Do not worry about freeing memory, because if this is
431 * called, then all agp memory is deallocated and removed
432 * from the table.
433 */
434
435 table = (char *) bridge->gatt_table_real;
436 table_end = table + ((PAGE_SIZE * (1 << page_order)) - 1);
437
438 for (page = virt_to_page(table); page <= virt_to_page(table_end); page++)
439 ClearPageReserved(page);
440
441 free_pages((unsigned long) bridge->gatt_table_real, page_order);
442
443 return 0;
444 }
445
446 void null_cache_flush(void)
447 {
448 mb();
449 }
450
451 /* Setup function */
452
453 static struct aper_size_info_32 uninorth_sizes[7] =
454 {
455 #if 0 /* Not sure uninorth supports that high aperture sizes */
456 {256, 65536, 6, 64},
457 {128, 32768, 5, 32},
458 {64, 16384, 4, 16},
459 #endif
460 {32, 8192, 3, 8},
461 {16, 4096, 2, 4},
462 {8, 2048, 1, 2},
463 {4, 1024, 0, 1}
464 };
465
466 /*
467 * Not sure that u3 supports that high aperture sizes but it
468 * would strange if it did not :)
469 */
470 static struct aper_size_info_32 u3_sizes[8] =
471 {
472 {512, 131072, 7, 128},
473 {256, 65536, 6, 64},
474 {128, 32768, 5, 32},
475 {64, 16384, 4, 16},
476 {32, 8192, 3, 8},
477 {16, 4096, 2, 4},
478 {8, 2048, 1, 2},
479 {4, 1024, 0, 1}
480 };
481
482 struct agp_bridge_driver uninorth_agp_driver = {
483 .owner = THIS_MODULE,
484 .aperture_sizes = (void *)uninorth_sizes,
485 .size_type = U32_APER_SIZE,
486 .num_aperture_sizes = 4,
487 .configure = uninorth_configure,
488 .fetch_size = uninorth_fetch_size,
489 .cleanup = uninorth_cleanup,
490 .tlb_flush = uninorth_tlbflush,
491 .mask_memory = agp_generic_mask_memory,
492 .masks = NULL,
493 .cache_flush = null_cache_flush,
494 .agp_enable = uninorth_agp_enable,
495 .create_gatt_table = uninorth_create_gatt_table,
496 .free_gatt_table = uninorth_free_gatt_table,
497 .insert_memory = uninorth_insert_memory,
498 .remove_memory = agp_generic_remove_memory,
499 .alloc_by_type = agp_generic_alloc_by_type,
500 .free_by_type = agp_generic_free_by_type,
501 .agp_alloc_page = agp_generic_alloc_page,
502 .agp_destroy_page = agp_generic_destroy_page,
503 .cant_use_aperture = 1,
504 };
505
506 struct agp_bridge_driver u3_agp_driver = {
507 .owner = THIS_MODULE,
508 .aperture_sizes = (void *)u3_sizes,
509 .size_type = U32_APER_SIZE,
510 .num_aperture_sizes = 8,
511 .configure = uninorth_configure,
512 .fetch_size = uninorth_fetch_size,
513 .cleanup = uninorth_cleanup,
514 .tlb_flush = uninorth_tlbflush,
515 .mask_memory = agp_generic_mask_memory,
516 .masks = NULL,
517 .cache_flush = null_cache_flush,
518 .agp_enable = uninorth_agp_enable,
519 .create_gatt_table = uninorth_create_gatt_table,
520 .free_gatt_table = uninorth_free_gatt_table,
521 .insert_memory = u3_insert_memory,
522 .remove_memory = u3_remove_memory,
523 .alloc_by_type = agp_generic_alloc_by_type,
524 .free_by_type = agp_generic_free_by_type,
525 .agp_alloc_page = agp_generic_alloc_page,
526 .agp_destroy_page = agp_generic_destroy_page,
527 .cant_use_aperture = 1,
528 .needs_scratch_page = 1,
529 };
530
531 static struct agp_device_ids uninorth_agp_device_ids[] __devinitdata = {
532 {
533 .device_id = PCI_DEVICE_ID_APPLE_UNI_N_AGP,
534 .chipset_name = "UniNorth",
535 },
536 {
537 .device_id = PCI_DEVICE_ID_APPLE_UNI_N_AGP_P,
538 .chipset_name = "UniNorth/Pangea",
539 },
540 {
541 .device_id = PCI_DEVICE_ID_APPLE_UNI_N_AGP15,
542 .chipset_name = "UniNorth 1.5",
543 },
544 {
545 .device_id = PCI_DEVICE_ID_APPLE_UNI_N_AGP2,
546 .chipset_name = "UniNorth 2",
547 },
548 {
549 .device_id = PCI_DEVICE_ID_APPLE_U3_AGP,
550 .chipset_name = "U3",
551 },
552 {
553 .device_id = PCI_DEVICE_ID_APPLE_U3L_AGP,
554 .chipset_name = "U3L",
555 },
556 {
557 .device_id = PCI_DEVICE_ID_APPLE_U3H_AGP,
558 .chipset_name = "U3H",
559 },
560 {
561 .device_id = PCI_DEVICE_ID_APPLE_IPID2_AGP,
562 .chipset_name = "UniNorth/Intrepid2",
563 },
564 };
565
566 static int __devinit agp_uninorth_probe(struct pci_dev *pdev,
567 const struct pci_device_id *ent)
568 {
569 struct agp_device_ids *devs = uninorth_agp_device_ids;
570 struct agp_bridge_data *bridge;
571 struct device_node *uninorth_node;
572 u8 cap_ptr;
573 int j;
574
575 cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP);
576 if (cap_ptr == 0)
577 return -ENODEV;
578
579 /* probe for known chipsets */
580 for (j = 0; devs[j].chipset_name != NULL; ++j) {
581 if (pdev->device == devs[j].device_id) {
582 printk(KERN_INFO PFX "Detected Apple %s chipset\n",
583 devs[j].chipset_name);
584 goto found;
585 }
586 }
587
588 printk(KERN_ERR PFX "Unsupported Apple chipset (device id: %04x).\n",
589 pdev->device);
590 return -ENODEV;
591
592 found:
593 /* Set revision to 0 if we could not read it. */
594 uninorth_rev = 0;
595 is_u3 = 0;
596 /* Locate core99 Uni-N */
597 uninorth_node = of_find_node_by_name(NULL, "uni-n");
598 /* Locate G5 u3 */
599 if (uninorth_node == NULL) {
600 is_u3 = 1;
601 uninorth_node = of_find_node_by_name(NULL, "u3");
602 }
603 if (uninorth_node) {
604 const int *revprop = get_property(uninorth_node,
605 "device-rev", NULL);
606 if (revprop != NULL)
607 uninorth_rev = *revprop & 0x3f;
608 of_node_put(uninorth_node);
609 }
610
611 #ifdef CONFIG_PM
612 /* Inform platform of our suspend/resume caps */
613 pmac_register_agp_pm(pdev, agp_uninorth_suspend, agp_uninorth_resume);
614 #endif
615
616 /* Allocate & setup our driver */
617 bridge = agp_alloc_bridge();
618 if (!bridge)
619 return -ENOMEM;
620
621 if (is_u3)
622 bridge->driver = &u3_agp_driver;
623 else
624 bridge->driver = &uninorth_agp_driver;
625
626 bridge->dev = pdev;
627 bridge->capndx = cap_ptr;
628 bridge->flags = AGP_ERRATA_FASTWRITES;
629
630 /* Fill in the mode register */
631 pci_read_config_dword(pdev, cap_ptr+PCI_AGP_STATUS, &bridge->mode);
632
633 pci_set_drvdata(pdev, bridge);
634 return agp_add_bridge(bridge);
635 }
636
637 static void __devexit agp_uninorth_remove(struct pci_dev *pdev)
638 {
639 struct agp_bridge_data *bridge = pci_get_drvdata(pdev);
640
641 #ifdef CONFIG_PM
642 /* Inform platform of our suspend/resume caps */
643 pmac_register_agp_pm(pdev, NULL, NULL);
644 #endif
645
646 agp_remove_bridge(bridge);
647 agp_put_bridge(bridge);
648 }
649
650 static struct pci_device_id agp_uninorth_pci_table[] = {
651 {
652 .class = (PCI_CLASS_BRIDGE_HOST << 8),
653 .class_mask = ~0,
654 .vendor = PCI_VENDOR_ID_APPLE,
655 .device = PCI_ANY_ID,
656 .subvendor = PCI_ANY_ID,
657 .subdevice = PCI_ANY_ID,
658 },
659 { }
660 };
661
662 MODULE_DEVICE_TABLE(pci, agp_uninorth_pci_table);
663
664 static struct pci_driver agp_uninorth_pci_driver = {
665 .name = "agpgart-uninorth",
666 .id_table = agp_uninorth_pci_table,
667 .probe = agp_uninorth_probe,
668 .remove = agp_uninorth_remove,
669 };
670
671 static int __init agp_uninorth_init(void)
672 {
673 if (agp_off)
674 return -EINVAL;
675 return pci_register_driver(&agp_uninorth_pci_driver);
676 }
677
678 static void __exit agp_uninorth_cleanup(void)
679 {
680 pci_unregister_driver(&agp_uninorth_pci_driver);
681 }
682
683 module_init(agp_uninorth_init);
684 module_exit(agp_uninorth_cleanup);
685
686 MODULE_AUTHOR("Ben Herrenschmidt & Paul Mackerras");
687 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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