1 /* $NetBSD: nouveau_engine_device_base.c,v 1.11 2016/05/11 02:28:33 riastradh Exp $ */
2
3 /*
4 * Copyright 2012 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs
25 */
26
27 #include <sys/cdefs.h>
28 __KERNEL_RCSID(0, "$NetBSD: nouveau_engine_device_base.c,v 1.11 2016/05/11 02:28:33 riastradh Exp $");
29
30 #include <core/object.h>
31 #include <core/device.h>
32 #include <core/client.h>
33 #include <core/option.h>
34
35 #include <core/class.h>
36
37 #include "priv.h"
38
39 #ifdef __NetBSD__
40 static struct mutex nv_devices_mutex;
41 static struct list_head nv_devices = LIST_HEAD_INIT(nv_devices);
42
43 void
nouveau_devices_init(void)44 nouveau_devices_init(void)
45 {
46
47 linux_mutex_init(&nv_devices_mutex);
48 }
49
50 void
nouveau_devices_fini(void)51 nouveau_devices_fini(void)
52 {
53
54 linux_mutex_destroy(&nv_devices_mutex);
55 }
56 #else
57 static DEFINE_MUTEX(nv_devices_mutex);
58 static LIST_HEAD(nv_devices);
59 #endif
60
61 struct nouveau_device *
nouveau_device_find(u64 name)62 nouveau_device_find(u64 name)
63 {
64 struct nouveau_device *device, *match = NULL;
65 mutex_lock(&nv_devices_mutex);
66 list_for_each_entry(device, &nv_devices, head) {
67 if (device->handle == name) {
68 match = device;
69 break;
70 }
71 }
72 mutex_unlock(&nv_devices_mutex);
73 return match;
74 }
75
76 /******************************************************************************
77 * nouveau_devobj (0x0080): class implementation
78 *****************************************************************************/
79 struct nouveau_devobj {
80 struct nouveau_parent base;
81 struct nouveau_object *subdev[NVDEV_SUBDEV_NR];
82 };
83
84 static const u64 disable_map[] = {
85 [NVDEV_SUBDEV_VBIOS] = NV_DEVICE_DISABLE_VBIOS,
86 [NVDEV_SUBDEV_DEVINIT] = NV_DEVICE_DISABLE_CORE,
87 [NVDEV_SUBDEV_GPIO] = NV_DEVICE_DISABLE_CORE,
88 [NVDEV_SUBDEV_I2C] = NV_DEVICE_DISABLE_CORE,
89 [NVDEV_SUBDEV_CLOCK] = NV_DEVICE_DISABLE_CORE,
90 [NVDEV_SUBDEV_MXM] = NV_DEVICE_DISABLE_CORE,
91 [NVDEV_SUBDEV_MC] = NV_DEVICE_DISABLE_CORE,
92 [NVDEV_SUBDEV_BUS] = NV_DEVICE_DISABLE_CORE,
93 [NVDEV_SUBDEV_TIMER] = NV_DEVICE_DISABLE_CORE,
94 [NVDEV_SUBDEV_FB] = NV_DEVICE_DISABLE_CORE,
95 [NVDEV_SUBDEV_LTCG] = NV_DEVICE_DISABLE_CORE,
96 [NVDEV_SUBDEV_IBUS] = NV_DEVICE_DISABLE_CORE,
97 [NVDEV_SUBDEV_INSTMEM] = NV_DEVICE_DISABLE_CORE,
98 [NVDEV_SUBDEV_VM] = NV_DEVICE_DISABLE_CORE,
99 [NVDEV_SUBDEV_BAR] = NV_DEVICE_DISABLE_CORE,
100 [NVDEV_SUBDEV_VOLT] = NV_DEVICE_DISABLE_CORE,
101 [NVDEV_SUBDEV_THERM] = NV_DEVICE_DISABLE_CORE,
102 [NVDEV_SUBDEV_PWR] = NV_DEVICE_DISABLE_CORE,
103 [NVDEV_ENGINE_DMAOBJ] = NV_DEVICE_DISABLE_CORE,
104 [NVDEV_ENGINE_PERFMON] = NV_DEVICE_DISABLE_CORE,
105 [NVDEV_ENGINE_FIFO] = NV_DEVICE_DISABLE_FIFO,
106 [NVDEV_ENGINE_SW] = NV_DEVICE_DISABLE_FIFO,
107 [NVDEV_ENGINE_GR] = NV_DEVICE_DISABLE_GRAPH,
108 [NVDEV_ENGINE_MPEG] = NV_DEVICE_DISABLE_MPEG,
109 [NVDEV_ENGINE_ME] = NV_DEVICE_DISABLE_ME,
110 [NVDEV_ENGINE_VP] = NV_DEVICE_DISABLE_VP,
111 [NVDEV_ENGINE_CRYPT] = NV_DEVICE_DISABLE_CRYPT,
112 [NVDEV_ENGINE_BSP] = NV_DEVICE_DISABLE_BSP,
113 [NVDEV_ENGINE_PPP] = NV_DEVICE_DISABLE_PPP,
114 [NVDEV_ENGINE_COPY0] = NV_DEVICE_DISABLE_COPY0,
115 [NVDEV_ENGINE_COPY1] = NV_DEVICE_DISABLE_COPY1,
116 [NVDEV_ENGINE_VIC] = NV_DEVICE_DISABLE_VIC,
117 [NVDEV_ENGINE_VENC] = NV_DEVICE_DISABLE_VENC,
118 [NVDEV_ENGINE_DISP] = NV_DEVICE_DISABLE_DISP,
119 [NVDEV_SUBDEV_NR] = 0,
120 };
121
122 static int
nouveau_devobj_ctor(struct nouveau_object * parent,struct nouveau_object * engine,struct nouveau_oclass * oclass,void * data,u32 size,struct nouveau_object ** pobject)123 nouveau_devobj_ctor(struct nouveau_object *parent,
124 struct nouveau_object *engine,
125 struct nouveau_oclass *oclass, void *data, u32 size,
126 struct nouveau_object **pobject)
127 {
128 struct nouveau_client *client = nv_client(parent);
129 struct nouveau_device *device;
130 struct nouveau_devobj *devobj;
131 struct nv_device_class *args = data;
132 u32 boot0, strap;
133 u64 disable, mmio_base, mmio_size;
134 #ifdef __NetBSD__
135 bus_space_tag_t mmiot;
136 bus_space_handle_t mmioh;
137 #else
138 void __iomem *map;
139 #endif
140 int ret, i, c;
141
142 if (size < sizeof(struct nv_device_class))
143 return -EINVAL;
144
145 /* find the device subdev that matches what the client requested */
146 device = nv_device(client->device);
147 if (args->device != ~0) {
148 device = nouveau_device_find(args->device);
149 if (!device)
150 return -ENODEV;
151 }
152
153 ret = nouveau_parent_create(parent, nv_object(device), oclass, 0,
154 nouveau_control_oclass,
155 (1ULL << NVDEV_ENGINE_DMAOBJ) |
156 (1ULL << NVDEV_ENGINE_FIFO) |
157 (1ULL << NVDEV_ENGINE_DISP) |
158 (1ULL << NVDEV_ENGINE_PERFMON), &devobj);
159 *pobject = nv_object(devobj);
160 if (ret)
161 return ret;
162
163 #ifdef __NetBSD__
164 mmiot = nv_device_resource_tag(device, 0);
165 #endif
166 mmio_base = nv_device_resource_start(device, 0);
167 mmio_size = nv_device_resource_len(device, 0);
168
169 /* translate api disable mask into internal mapping */
170 disable = args->debug0;
171 for (i = 0; i < NVDEV_SUBDEV_NR; i++) {
172 if (args->disable & disable_map[i])
173 disable |= (1ULL << i);
174 }
175
176 /* identify the chipset, and determine classes of subdev/engines */
177 if (!(args->disable & NV_DEVICE_DISABLE_IDENTIFY) &&
178 !device->card_type) {
179 #ifdef __NetBSD__
180 if (mmio_size < 0x102000)
181 return -ENOMEM;
182 /* XXX errno NetBSD->Linux */
183 ret = -bus_space_map(mmiot, mmio_base, 0x102000, 0, &mmioh);
184 if (ret)
185 return ret;
186
187 #ifndef __BIG_ENDIAN
188 if (bus_space_read_4(mmiot, mmioh, 4) != 0)
189 #else
190 if (bus_space_read_4(mmiot, mmioh, 4) == 0)
191 #endif
192 bus_space_write_4(mmiot, mmioh, 4, 0x01000001);
193
194 boot0 = bus_space_read_4(mmiot, mmioh, 0x000000);
195 strap = bus_space_read_4(mmiot, mmioh, 0x101000);
196 bus_space_unmap(mmiot, mmioh, 0x102000);
197 #else
198 map = ioremap(mmio_base, 0x102000);
199 if (map == NULL)
200 return -ENOMEM;
201
202 /* switch mmio to cpu's native endianness */
203 #ifndef __BIG_ENDIAN
204 if (ioread32_native(map + 0x000004) != 0x00000000)
205 #else
206 if (ioread32_native(map + 0x000004) == 0x00000000)
207 #endif
208 iowrite32_native(0x01000001, map + 0x000004);
209
210 /* read boot0 and strapping information */
211 boot0 = ioread32_native(map + 0x000000);
212 strap = ioread32_native(map + 0x101000);
213 iounmap(map);
214 #endif
215
216 /* determine chipset and derive architecture from it */
217 if ((boot0 & 0x1f000000) > 0) {
218 device->chipset = (boot0 & 0x1ff00000) >> 20;
219 switch (device->chipset & 0x1f0) {
220 case 0x010: {
221 if (0x461 & (1 << (device->chipset & 0xf)))
222 device->card_type = NV_10;
223 else
224 device->card_type = NV_11;
225 break;
226 }
227 case 0x020: device->card_type = NV_20; break;
228 case 0x030: device->card_type = NV_30; break;
229 case 0x040:
230 case 0x060: device->card_type = NV_40; break;
231 case 0x050:
232 case 0x080:
233 case 0x090:
234 case 0x0a0: device->card_type = NV_50; break;
235 case 0x0c0: device->card_type = NV_C0; break;
236 case 0x0d0: device->card_type = NV_D0; break;
237 case 0x0e0:
238 case 0x0f0:
239 case 0x100: device->card_type = NV_E0; break;
240 case 0x110: device->card_type = GM100; break;
241 default:
242 break;
243 }
244 } else
245 if ((boot0 & 0xff00fff0) == 0x20004000) {
246 if (boot0 & 0x00f00000)
247 device->chipset = 0x05;
248 else
249 device->chipset = 0x04;
250 device->card_type = NV_04;
251 }
252
253 switch (device->card_type) {
254 case NV_04: ret = nv04_identify(device); break;
255 case NV_10:
256 case NV_11: ret = nv10_identify(device); break;
257 case NV_20: ret = nv20_identify(device); break;
258 case NV_30: ret = nv30_identify(device); break;
259 case NV_40: ret = nv40_identify(device); break;
260 case NV_50: ret = nv50_identify(device); break;
261 case NV_C0:
262 case NV_D0: ret = nvc0_identify(device); break;
263 case NV_E0: ret = nve0_identify(device); break;
264 case GM100: ret = gm100_identify(device); break;
265 default:
266 ret = -EINVAL;
267 break;
268 }
269
270 if (ret) {
271 nv_error(device, "unknown chipset, 0x%08x\n", boot0);
272 return ret;
273 }
274
275 nv_info(device, "BOOT0 : 0x%08x\n", boot0);
276 nv_info(device, "Chipset: %s (NV%02X)\n",
277 device->cname, device->chipset);
278 nv_info(device, "Family : NV%02X\n", device->card_type);
279
280 /* determine frequency of timing crystal */
281 if ( device->card_type <= NV_10 || device->chipset < 0x17 ||
282 (device->chipset >= 0x20 && device->chipset < 0x25))
283 strap &= 0x00000040;
284 else
285 strap &= 0x00400040;
286
287 switch (strap) {
288 case 0x00000000: device->crystal = 13500; break;
289 case 0x00000040: device->crystal = 14318; break;
290 case 0x00400000: device->crystal = 27000; break;
291 case 0x00400040: device->crystal = 25000; break;
292 }
293
294 nv_debug(device, "crystal freq: %dKHz\n", device->crystal);
295 }
296
297 #ifdef __NetBSD__
298 if (!(args->disable & NV_DEVICE_DISABLE_MMIO) &&
299 !nv_subdev(device)->mmiosz) {
300 /* XXX errno NetBSD->Linux */
301 ret = -bus_space_map(mmiot, mmio_base, mmio_size, 0, &mmioh);
302 if (ret) {
303 nv_error(device, "unable to map device registers\n");
304 return ret;
305 }
306 nv_subdev(device)->mmiot = mmiot;
307 nv_subdev(device)->mmioh = mmioh;
308 nv_subdev(device)->mmiosz = mmio_size;
309 }
310 #else
311 if (!(args->disable & NV_DEVICE_DISABLE_MMIO) &&
312 !nv_subdev(device)->mmio) {
313 nv_subdev(device)->mmio = ioremap(mmio_base, mmio_size);
314 if (!nv_subdev(device)->mmio) {
315 nv_error(device, "unable to map device registers\n");
316 return -ENOMEM;
317 }
318 }
319 #endif
320
321 /* ensure requested subsystems are available for use */
322 for (i = 1, c = 1; i < NVDEV_SUBDEV_NR; i++) {
323 if (!(oclass = device->oclass[i]) || (disable & (1ULL << i)))
324 continue;
325
326 if (device->subdev[i]) {
327 nouveau_object_ref(device->subdev[i],
328 &devobj->subdev[i]);
329 continue;
330 }
331
332 ret = nouveau_object_ctor(nv_object(device), NULL,
333 oclass, NULL, i,
334 &devobj->subdev[i]);
335 if (ret == -ENODEV)
336 continue;
337 if (ret)
338 return ret;
339
340 device->subdev[i] = devobj->subdev[i];
341
342 /* note: can't init *any* subdevs until devinit has been run
343 * due to not knowing exactly what the vbios init tables will
344 * mess with. devinit also can't be run until all of its
345 * dependencies have been created.
346 *
347 * this code delays init of any subdev until all of devinit's
348 * dependencies have been created, and then initialises each
349 * subdev in turn as they're created.
350 */
351 while (i >= NVDEV_SUBDEV_DEVINIT_LAST && c <= i) {
352 struct nouveau_object *subdev = devobj->subdev[c++];
353 if (subdev && !nv_iclass(subdev, NV_ENGINE_CLASS)) {
354 ret = nouveau_object_inc(subdev);
355 if (ret)
356 return ret;
357 atomic_dec(&nv_object(device)->usecount);
358 } else
359 if (subdev) {
360 nouveau_subdev_reset(subdev);
361 }
362 }
363 }
364
365 return 0;
366 }
367
368 static void
nouveau_devobj_dtor(struct nouveau_object * object)369 nouveau_devobj_dtor(struct nouveau_object *object)
370 {
371 struct nouveau_devobj *devobj = (void *)object;
372 int i;
373
374 for (i = NVDEV_SUBDEV_NR - 1; i >= 0; i--)
375 nouveau_object_ref(NULL, &devobj->subdev[i]);
376
377 nouveau_parent_destroy(&devobj->base);
378 }
379
380 static u8
nouveau_devobj_rd08(struct nouveau_object * object,u64 addr)381 nouveau_devobj_rd08(struct nouveau_object *object, u64 addr)
382 {
383 return nv_rd08(object->engine, addr);
384 }
385
386 static u16
nouveau_devobj_rd16(struct nouveau_object * object,u64 addr)387 nouveau_devobj_rd16(struct nouveau_object *object, u64 addr)
388 {
389 return nv_rd16(object->engine, addr);
390 }
391
392 static u32
nouveau_devobj_rd32(struct nouveau_object * object,u64 addr)393 nouveau_devobj_rd32(struct nouveau_object *object, u64 addr)
394 {
395 return nv_rd32(object->engine, addr);
396 }
397
398 static void
nouveau_devobj_wr08(struct nouveau_object * object,u64 addr,u8 data)399 nouveau_devobj_wr08(struct nouveau_object *object, u64 addr, u8 data)
400 {
401 nv_wr08(object->engine, addr, data);
402 }
403
404 static void
nouveau_devobj_wr16(struct nouveau_object * object,u64 addr,u16 data)405 nouveau_devobj_wr16(struct nouveau_object *object, u64 addr, u16 data)
406 {
407 nv_wr16(object->engine, addr, data);
408 }
409
410 static void
nouveau_devobj_wr32(struct nouveau_object * object,u64 addr,u32 data)411 nouveau_devobj_wr32(struct nouveau_object *object, u64 addr, u32 data)
412 {
413 nv_wr32(object->engine, addr, data);
414 }
415
416 static struct nouveau_ofuncs
417 nouveau_devobj_ofuncs = {
418 .ctor = nouveau_devobj_ctor,
419 .dtor = nouveau_devobj_dtor,
420 .init = _nouveau_parent_init,
421 .fini = _nouveau_parent_fini,
422 .rd08 = nouveau_devobj_rd08,
423 .rd16 = nouveau_devobj_rd16,
424 .rd32 = nouveau_devobj_rd32,
425 .wr08 = nouveau_devobj_wr08,
426 .wr16 = nouveau_devobj_wr16,
427 .wr32 = nouveau_devobj_wr32,
428 };
429
430 /******************************************************************************
431 * nouveau_device: engine functions
432 *****************************************************************************/
433 static struct nouveau_oclass
434 nouveau_device_sclass[] = {
435 { 0x0080, &nouveau_devobj_ofuncs },
436 {}
437 };
438
439 static int
nouveau_device_fini(struct nouveau_object * object,bool suspend)440 nouveau_device_fini(struct nouveau_object *object, bool suspend)
441 {
442 struct nouveau_device *device = (void *)object;
443 struct nouveau_object *subdev;
444 int ret, i;
445
446 for (i = NVDEV_SUBDEV_NR - 1; i >= 0; i--) {
447 if ((subdev = device->subdev[i])) {
448 if (!nv_iclass(subdev, NV_ENGINE_CLASS)) {
449 ret = nouveau_object_dec(subdev, suspend);
450 if (ret && suspend)
451 goto fail;
452 }
453 }
454 }
455
456 ret = 0;
457 fail:
458 for (; ret && i < NVDEV_SUBDEV_NR; i++) {
459 if ((subdev = device->subdev[i])) {
460 if (!nv_iclass(subdev, NV_ENGINE_CLASS)) {
461 ret = nouveau_object_inc(subdev);
462 if (ret) {
463 /* XXX */
464 }
465 }
466 }
467 }
468
469 return ret;
470 }
471
472 static int
nouveau_device_init(struct nouveau_object * object)473 nouveau_device_init(struct nouveau_object *object)
474 {
475 struct nouveau_device *device = (void *)object;
476 struct nouveau_object *subdev;
477 int ret, i;
478
479 for (i = 0; i < NVDEV_SUBDEV_NR; i++) {
480 if ((subdev = device->subdev[i])) {
481 if (!nv_iclass(subdev, NV_ENGINE_CLASS)) {
482 ret = nouveau_object_inc(subdev);
483 if (ret)
484 goto fail;
485 } else {
486 nouveau_subdev_reset(subdev);
487 }
488 }
489 }
490
491 ret = 0;
492 fail:
493 for (--i; ret && i >= 0; i--) {
494 if ((subdev = device->subdev[i])) {
495 if (!nv_iclass(subdev, NV_ENGINE_CLASS))
496 nouveau_object_dec(subdev, false);
497 }
498 }
499
500 return ret;
501 }
502
503 static void
nouveau_device_dtor(struct nouveau_object * object)504 nouveau_device_dtor(struct nouveau_object *object)
505 {
506 struct nouveau_device *device = (void *)object;
507
508 mutex_lock(&nv_devices_mutex);
509 list_del(&device->head);
510 mutex_unlock(&nv_devices_mutex);
511
512 #ifdef __NetBSD__
513 if (nv_subdev(device)->mmiosz)
514 bus_space_unmap(nv_subdev(device)->mmiot,
515 nv_subdev(device)->mmioh, nv_subdev(device)->mmiosz);
516 #else
517 if (nv_subdev(device)->mmio)
518 iounmap(nv_subdev(device)->mmio);
519 #endif
520
521 nouveau_engine_destroy(&device->base);
522 }
523
524 #ifdef __NetBSD__
525 bus_space_tag_t
nv_device_resource_tag(struct nouveau_device * device,unsigned int bar)526 nv_device_resource_tag(struct nouveau_device *device, unsigned int bar)
527 {
528 if (nv_device_is_pci(device)) {
529 const struct pci_attach_args *const pa = &device->pdev->pd_pa;
530 if (PCI_MAPREG_TYPE(pci_mapreg_type(pa->pa_pc, pa->pa_tag,
531 PCI_BAR(bar))) == PCI_MAPREG_TYPE_MEM)
532 return pa->pa_memt;
533 else
534 return pa->pa_iot;
535 } else {
536 KASSERT(bar < device->platformdev->nresource);
537 return device->platformdev->resource[bar].tag;
538 }
539 }
540 #endif
541
542 resource_size_t
nv_device_resource_start(struct nouveau_device * device,unsigned int bar)543 nv_device_resource_start(struct nouveau_device *device, unsigned int bar)
544 {
545 if (nv_device_is_pci(device)) {
546 return pci_resource_start(device->pdev, bar);
547 } else {
548 #ifdef __NetBSD__
549 if (bar >= device->platformdev->nresource)
550 return 0;
551 return device->platformdev->resource[bar].start;
552 #else
553 struct resource *res;
554 res = platform_get_resource(device->platformdev,
555 IORESOURCE_MEM, bar);
556 if (!res)
557 return 0;
558 return res->start;
559 #endif
560 }
561 }
562
563 resource_size_t
nv_device_resource_len(struct nouveau_device * device,unsigned int bar)564 nv_device_resource_len(struct nouveau_device *device, unsigned int bar)
565 {
566 if (nv_device_is_pci(device)) {
567 return pci_resource_len(device->pdev, bar);
568 } else {
569 #ifdef __NetBSD__
570 if (bar >= device->platformdev->nresource)
571 return 0;
572 return device->platformdev->resource[bar].len;
573 #else
574 struct resource *res;
575 res = platform_get_resource(device->platformdev,
576 IORESOURCE_MEM, bar);
577 if (!res)
578 return 0;
579 return resource_size(res);
580 #endif
581 }
582 }
583
584 #ifndef __NetBSD__
585 dma_addr_t
nv_device_map_page(struct nouveau_device * device,struct page * page)586 nv_device_map_page(struct nouveau_device *device, struct page *page)
587 {
588 dma_addr_t ret;
589
590 if (nv_device_is_pci(device)) {
591 ret = pci_map_page(device->pdev, page, 0, PAGE_SIZE,
592 PCI_DMA_BIDIRECTIONAL);
593 if (pci_dma_mapping_error(device->pdev, ret))
594 ret = 0;
595 } else {
596 ret = page_to_phys(page);
597 }
598
599 return ret;
600 }
601
602 void
nv_device_unmap_page(struct nouveau_device * device,dma_addr_t addr)603 nv_device_unmap_page(struct nouveau_device *device, dma_addr_t addr)
604 {
605 if (nv_device_is_pci(device))
606 pci_unmap_page(device->pdev, addr, PAGE_SIZE,
607 PCI_DMA_BIDIRECTIONAL);
608 }
609
610 int
nv_device_get_irq(struct nouveau_device * device,bool stall)611 nv_device_get_irq(struct nouveau_device *device, bool stall)
612 {
613 if (nv_device_is_pci(device)) {
614 return device->pdev->irq;
615 } else {
616 return platform_get_irq_byname(device->platformdev,
617 stall ? "stall" : "nonstall");
618 }
619 }
620 #endif
621
622 static struct nouveau_oclass
623 nouveau_device_oclass = {
624 .handle = NV_ENGINE(DEVICE, 0x00),
625 .ofuncs = &(struct nouveau_ofuncs) {
626 .dtor = nouveau_device_dtor,
627 .init = nouveau_device_init,
628 .fini = nouveau_device_fini,
629 },
630 };
631
632 int
nouveau_device_create_(void * dev,enum nv_bus_type type,u64 name,const char * sname,const char * cfg,const char * dbg,int length,void ** pobject)633 nouveau_device_create_(void *dev, enum nv_bus_type type, u64 name,
634 const char *sname, const char *cfg, const char *dbg,
635 int length, void **pobject)
636 {
637 struct nouveau_device *device;
638 int ret = -EEXIST;
639
640 mutex_lock(&nv_devices_mutex);
641 list_for_each_entry(device, &nv_devices, head) {
642 if (device->handle == name)
643 goto done;
644 }
645
646 ret = nouveau_engine_create_(NULL, NULL, &nouveau_device_oclass, true,
647 "DEVICE", "device", length, pobject);
648 device = *pobject;
649 if (ret)
650 goto done;
651
652 switch (type) {
653 case NOUVEAU_BUS_PCI:
654 device->pdev = dev;
655 break;
656 case NOUVEAU_BUS_PLATFORM:
657 device->platformdev = dev;
658 break;
659 }
660 device->handle = name;
661 device->cfgopt = cfg;
662 device->dbgopt = dbg;
663 device->name = sname;
664
665 nv_subdev(device)->debug = nouveau_dbgopt(device->dbgopt, "DEVICE");
666 nv_engine(device)->sclass = nouveau_device_sclass;
667 list_add(&device->head, &nv_devices);
668 done:
669 mutex_unlock(&nv_devices_mutex);
670 return ret;
671 }
672