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[deliverable/linux.git] / drivers / gpu / drm / nouveau / nouveau_drm.c
1 /*
2 * Copyright 2012 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Ben Skeggs
23 */
24
25 #include <linux/console.h>
26 #include <linux/delay.h>
27 #include <linux/module.h>
28 #include <linux/pci.h>
29 #include <linux/pm_runtime.h>
30 #include <linux/vga_switcheroo.h>
31
32 #include "drmP.h"
33 #include "drm_crtc_helper.h"
34
35 #include <core/gpuobj.h>
36 #include <core/option.h>
37 #include <core/pci.h>
38 #include <core/tegra.h>
39
40 #include <nvif/class.h>
41 #include <nvif/cl0002.h>
42 #include <nvif/cla06f.h>
43 #include <nvif/if0004.h>
44
45 #include "nouveau_drv.h"
46 #include "nouveau_dma.h"
47 #include "nouveau_ttm.h"
48 #include "nouveau_gem.h"
49 #include "nouveau_vga.h"
50 #include "nouveau_hwmon.h"
51 #include "nouveau_acpi.h"
52 #include "nouveau_bios.h"
53 #include "nouveau_ioctl.h"
54 #include "nouveau_abi16.h"
55 #include "nouveau_fbcon.h"
56 #include "nouveau_fence.h"
57 #include "nouveau_debugfs.h"
58 #include "nouveau_usif.h"
59 #include "nouveau_connector.h"
60 #include "nouveau_platform.h"
61
62 MODULE_PARM_DESC(config, "option string to pass to driver core");
63 static char *nouveau_config;
64 module_param_named(config, nouveau_config, charp, 0400);
65
66 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
67 static char *nouveau_debug;
68 module_param_named(debug, nouveau_debug, charp, 0400);
69
70 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
71 static int nouveau_noaccel = 0;
72 module_param_named(noaccel, nouveau_noaccel, int, 0400);
73
74 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
75 "0 = disabled, 1 = enabled, 2 = headless)");
76 int nouveau_modeset = -1;
77 module_param_named(modeset, nouveau_modeset, int, 0400);
78
79 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
80 int nouveau_runtime_pm = -1;
81 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
82
83 static struct drm_driver driver_stub;
84 static struct drm_driver driver_pci;
85 static struct drm_driver driver_platform;
86
87 static u64
88 nouveau_pci_name(struct pci_dev *pdev)
89 {
90 u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
91 name |= pdev->bus->number << 16;
92 name |= PCI_SLOT(pdev->devfn) << 8;
93 return name | PCI_FUNC(pdev->devfn);
94 }
95
96 static u64
97 nouveau_platform_name(struct platform_device *platformdev)
98 {
99 return platformdev->id;
100 }
101
102 static u64
103 nouveau_name(struct drm_device *dev)
104 {
105 if (dev->pdev)
106 return nouveau_pci_name(dev->pdev);
107 else
108 return nouveau_platform_name(dev->platformdev);
109 }
110
111 static int
112 nouveau_cli_create(struct drm_device *dev, const char *sname,
113 int size, void **pcli)
114 {
115 struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
116 int ret;
117 if (cli) {
118 snprintf(cli->name, sizeof(cli->name), "%s", sname);
119 cli->dev = dev;
120
121 ret = nvif_client_init(NULL, cli->name, nouveau_name(dev),
122 nouveau_config, nouveau_debug,
123 &cli->base);
124 if (ret == 0) {
125 mutex_init(&cli->mutex);
126 usif_client_init(cli);
127 }
128 return ret;
129 }
130 return -ENOMEM;
131 }
132
133 static void
134 nouveau_cli_destroy(struct nouveau_cli *cli)
135 {
136 nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
137 nvif_client_fini(&cli->base);
138 usif_client_fini(cli);
139 kfree(cli);
140 }
141
142 static void
143 nouveau_accel_fini(struct nouveau_drm *drm)
144 {
145 nouveau_channel_idle(drm->channel);
146 nvif_object_fini(&drm->ntfy);
147 nvkm_gpuobj_del(&drm->notify);
148 nvif_notify_fini(&drm->flip);
149 nvif_object_fini(&drm->nvsw);
150 nouveau_channel_del(&drm->channel);
151
152 nouveau_channel_idle(drm->cechan);
153 nvif_object_fini(&drm->ttm.copy);
154 nouveau_channel_del(&drm->cechan);
155
156 if (drm->fence)
157 nouveau_fence(drm)->dtor(drm);
158 }
159
160 static void
161 nouveau_accel_init(struct nouveau_drm *drm)
162 {
163 struct nvif_device *device = &drm->device;
164 struct nvif_sclass *sclass;
165 u32 arg0, arg1;
166 int ret, i, n;
167
168 if (nouveau_noaccel)
169 return;
170
171 /* initialise synchronisation routines */
172 /*XXX: this is crap, but the fence/channel stuff is a little
173 * backwards in some places. this will be fixed.
174 */
175 ret = n = nvif_object_sclass_get(&device->object, &sclass);
176 if (ret < 0)
177 return;
178
179 for (ret = -ENOSYS, i = 0; i < n; i++) {
180 switch (sclass[i].oclass) {
181 case NV03_CHANNEL_DMA:
182 ret = nv04_fence_create(drm);
183 break;
184 case NV10_CHANNEL_DMA:
185 ret = nv10_fence_create(drm);
186 break;
187 case NV17_CHANNEL_DMA:
188 case NV40_CHANNEL_DMA:
189 ret = nv17_fence_create(drm);
190 break;
191 case NV50_CHANNEL_GPFIFO:
192 ret = nv50_fence_create(drm);
193 break;
194 case G82_CHANNEL_GPFIFO:
195 ret = nv84_fence_create(drm);
196 break;
197 case FERMI_CHANNEL_GPFIFO:
198 case KEPLER_CHANNEL_GPFIFO_A:
199 case KEPLER_CHANNEL_GPFIFO_B:
200 case MAXWELL_CHANNEL_GPFIFO_A:
201 case PASCAL_CHANNEL_GPFIFO_A:
202 ret = nvc0_fence_create(drm);
203 break;
204 default:
205 break;
206 }
207 }
208
209 nvif_object_sclass_put(&sclass);
210 if (ret) {
211 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
212 nouveau_accel_fini(drm);
213 return;
214 }
215
216 if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
217 ret = nouveau_channel_new(drm, &drm->device,
218 NVA06F_V0_ENGINE_CE0 |
219 NVA06F_V0_ENGINE_CE1,
220 0, &drm->cechan);
221 if (ret)
222 NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
223
224 arg0 = NVA06F_V0_ENGINE_GR;
225 arg1 = 1;
226 } else
227 if (device->info.chipset >= 0xa3 &&
228 device->info.chipset != 0xaa &&
229 device->info.chipset != 0xac) {
230 ret = nouveau_channel_new(drm, &drm->device,
231 NvDmaFB, NvDmaTT, &drm->cechan);
232 if (ret)
233 NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
234
235 arg0 = NvDmaFB;
236 arg1 = NvDmaTT;
237 } else {
238 arg0 = NvDmaFB;
239 arg1 = NvDmaTT;
240 }
241
242 ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel);
243 if (ret) {
244 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
245 nouveau_accel_fini(drm);
246 return;
247 }
248
249 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
250 nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
251 if (ret == 0) {
252 ret = RING_SPACE(drm->channel, 2);
253 if (ret == 0) {
254 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
255 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
256 OUT_RING (drm->channel, NVDRM_NVSW);
257 } else
258 if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
259 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
260 OUT_RING (drm->channel, 0x001f0000);
261 }
262 }
263
264 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
265 false, NV04_NVSW_NTFY_UEVENT,
266 NULL, 0, 0, &drm->flip);
267 if (ret == 0)
268 ret = nvif_notify_get(&drm->flip);
269 if (ret) {
270 nouveau_accel_fini(drm);
271 return;
272 }
273 }
274
275 if (ret) {
276 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
277 nouveau_accel_fini(drm);
278 return;
279 }
280
281 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
282 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
283 NULL, &drm->notify);
284 if (ret) {
285 NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
286 nouveau_accel_fini(drm);
287 return;
288 }
289
290 ret = nvif_object_init(&drm->channel->user, NvNotify0,
291 NV_DMA_IN_MEMORY,
292 &(struct nv_dma_v0) {
293 .target = NV_DMA_V0_TARGET_VRAM,
294 .access = NV_DMA_V0_ACCESS_RDWR,
295 .start = drm->notify->addr,
296 .limit = drm->notify->addr + 31
297 }, sizeof(struct nv_dma_v0),
298 &drm->ntfy);
299 if (ret) {
300 nouveau_accel_fini(drm);
301 return;
302 }
303 }
304
305
306 nouveau_bo_move_init(drm);
307 }
308
309 static int nouveau_drm_probe(struct pci_dev *pdev,
310 const struct pci_device_id *pent)
311 {
312 struct nvkm_device *device;
313 struct apertures_struct *aper;
314 bool boot = false;
315 int ret;
316
317 if (vga_switcheroo_client_probe_defer(pdev))
318 return -EPROBE_DEFER;
319
320 /* We need to check that the chipset is supported before booting
321 * fbdev off the hardware, as there's no way to put it back.
322 */
323 ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
324 if (ret)
325 return ret;
326
327 nvkm_device_del(&device);
328
329 /* Remove conflicting drivers (vesafb, efifb etc). */
330 aper = alloc_apertures(3);
331 if (!aper)
332 return -ENOMEM;
333
334 aper->ranges[0].base = pci_resource_start(pdev, 1);
335 aper->ranges[0].size = pci_resource_len(pdev, 1);
336 aper->count = 1;
337
338 if (pci_resource_len(pdev, 2)) {
339 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
340 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
341 aper->count++;
342 }
343
344 if (pci_resource_len(pdev, 3)) {
345 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
346 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
347 aper->count++;
348 }
349
350 #ifdef CONFIG_X86
351 boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
352 #endif
353 if (nouveau_modeset != 2)
354 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
355 kfree(aper);
356
357 ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
358 true, true, ~0ULL, &device);
359 if (ret)
360 return ret;
361
362 pci_set_master(pdev);
363
364 ret = drm_get_pci_dev(pdev, pent, &driver_pci);
365 if (ret) {
366 nvkm_device_del(&device);
367 return ret;
368 }
369
370 return 0;
371 }
372
373 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
374
375 static void
376 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
377 {
378 struct pci_dev *pdev = drm->dev->pdev;
379
380 if (!pdev) {
381 NV_DEBUG(drm, "not a PCI device; no HDMI\n");
382 drm->hdmi_device = NULL;
383 return;
384 }
385
386 /* subfunction one is a hdmi audio device? */
387 drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
388 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
389
390 if (!drm->hdmi_device) {
391 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
392 return;
393 }
394
395 if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
396 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
397 pci_dev_put(drm->hdmi_device);
398 drm->hdmi_device = NULL;
399 return;
400 }
401 }
402
403 static int
404 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
405 {
406 struct nouveau_drm *drm;
407 int ret;
408
409 ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
410 if (ret)
411 return ret;
412
413 dev->dev_private = drm;
414 drm->dev = dev;
415 nvxx_client(&drm->client.base)->debug =
416 nvkm_dbgopt(nouveau_debug, "DRM");
417
418 INIT_LIST_HEAD(&drm->clients);
419 spin_lock_init(&drm->tile.lock);
420
421 nouveau_get_hdmi_dev(drm);
422
423 ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE,
424 &(struct nv_device_v0) {
425 .device = ~0,
426 }, sizeof(struct nv_device_v0),
427 &drm->device);
428 if (ret)
429 goto fail_device;
430
431 dev->irq_enabled = true;
432
433 /* workaround an odd issue on nvc1 by disabling the device's
434 * nosnoop capability. hopefully won't cause issues until a
435 * better fix is found - assuming there is one...
436 */
437 if (drm->device.info.chipset == 0xc1)
438 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
439
440 nouveau_vga_init(drm);
441
442 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
443 if (!nvxx_device(&drm->device)->mmu) {
444 ret = -ENOSYS;
445 goto fail_device;
446 }
447
448 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
449 0x1000, NULL, &drm->client.vm);
450 if (ret)
451 goto fail_device;
452
453 nvxx_client(&drm->client.base)->vm = drm->client.vm;
454 }
455
456 ret = nouveau_ttm_init(drm);
457 if (ret)
458 goto fail_ttm;
459
460 ret = nouveau_bios_init(dev);
461 if (ret)
462 goto fail_bios;
463
464 ret = nouveau_display_create(dev);
465 if (ret)
466 goto fail_dispctor;
467
468 if (dev->mode_config.num_crtc) {
469 ret = nouveau_display_init(dev);
470 if (ret)
471 goto fail_dispinit;
472 }
473
474 nouveau_debugfs_init(drm);
475 nouveau_hwmon_init(dev);
476 nouveau_accel_init(drm);
477 nouveau_fbcon_init(dev);
478
479 if (nouveau_runtime_pm != 0) {
480 pm_runtime_use_autosuspend(dev->dev);
481 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
482 pm_runtime_set_active(dev->dev);
483 pm_runtime_allow(dev->dev);
484 pm_runtime_mark_last_busy(dev->dev);
485 pm_runtime_put(dev->dev);
486 }
487 return 0;
488
489 fail_dispinit:
490 nouveau_display_destroy(dev);
491 fail_dispctor:
492 nouveau_bios_takedown(dev);
493 fail_bios:
494 nouveau_ttm_fini(drm);
495 fail_ttm:
496 nouveau_vga_fini(drm);
497 fail_device:
498 nvif_device_fini(&drm->device);
499 nouveau_cli_destroy(&drm->client);
500 return ret;
501 }
502
503 static int
504 nouveau_drm_unload(struct drm_device *dev)
505 {
506 struct nouveau_drm *drm = nouveau_drm(dev);
507
508 if (nouveau_runtime_pm != 0) {
509 pm_runtime_get_sync(dev->dev);
510 pm_runtime_forbid(dev->dev);
511 }
512
513 nouveau_fbcon_fini(dev);
514 nouveau_accel_fini(drm);
515 nouveau_hwmon_fini(dev);
516 nouveau_debugfs_fini(drm);
517
518 if (dev->mode_config.num_crtc)
519 nouveau_display_fini(dev);
520 nouveau_display_destroy(dev);
521
522 nouveau_bios_takedown(dev);
523
524 nouveau_ttm_fini(drm);
525 nouveau_vga_fini(drm);
526
527 nvif_device_fini(&drm->device);
528 if (drm->hdmi_device)
529 pci_dev_put(drm->hdmi_device);
530 nouveau_cli_destroy(&drm->client);
531 return 0;
532 }
533
534 void
535 nouveau_drm_device_remove(struct drm_device *dev)
536 {
537 struct nouveau_drm *drm = nouveau_drm(dev);
538 struct nvkm_client *client;
539 struct nvkm_device *device;
540
541 dev->irq_enabled = false;
542 client = nvxx_client(&drm->client.base);
543 device = nvkm_device_find(client->device);
544 drm_put_dev(dev);
545
546 nvkm_device_del(&device);
547 }
548
549 static void
550 nouveau_drm_remove(struct pci_dev *pdev)
551 {
552 struct drm_device *dev = pci_get_drvdata(pdev);
553
554 nouveau_drm_device_remove(dev);
555 }
556
557 static int
558 nouveau_do_suspend(struct drm_device *dev, bool runtime)
559 {
560 struct nouveau_drm *drm = nouveau_drm(dev);
561 struct nouveau_cli *cli;
562 int ret;
563
564 if (dev->mode_config.num_crtc) {
565 NV_INFO(drm, "suspending console...\n");
566 nouveau_fbcon_set_suspend(dev, 1);
567 NV_INFO(drm, "suspending display...\n");
568 ret = nouveau_display_suspend(dev, runtime);
569 if (ret)
570 return ret;
571 }
572
573 NV_INFO(drm, "evicting buffers...\n");
574 ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
575
576 NV_INFO(drm, "waiting for kernel channels to go idle...\n");
577 if (drm->cechan) {
578 ret = nouveau_channel_idle(drm->cechan);
579 if (ret)
580 goto fail_display;
581 }
582
583 if (drm->channel) {
584 ret = nouveau_channel_idle(drm->channel);
585 if (ret)
586 goto fail_display;
587 }
588
589 NV_INFO(drm, "suspending client object trees...\n");
590 if (drm->fence && nouveau_fence(drm)->suspend) {
591 if (!nouveau_fence(drm)->suspend(drm)) {
592 ret = -ENOMEM;
593 goto fail_display;
594 }
595 }
596
597 list_for_each_entry(cli, &drm->clients, head) {
598 ret = nvif_client_suspend(&cli->base);
599 if (ret)
600 goto fail_client;
601 }
602
603 NV_INFO(drm, "suspending kernel object tree...\n");
604 ret = nvif_client_suspend(&drm->client.base);
605 if (ret)
606 goto fail_client;
607
608 return 0;
609
610 fail_client:
611 list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
612 nvif_client_resume(&cli->base);
613 }
614
615 if (drm->fence && nouveau_fence(drm)->resume)
616 nouveau_fence(drm)->resume(drm);
617
618 fail_display:
619 if (dev->mode_config.num_crtc) {
620 NV_INFO(drm, "resuming display...\n");
621 nouveau_display_resume(dev, runtime);
622 }
623 return ret;
624 }
625
626 static int
627 nouveau_do_resume(struct drm_device *dev, bool runtime)
628 {
629 struct nouveau_drm *drm = nouveau_drm(dev);
630 struct nouveau_cli *cli;
631
632 NV_INFO(drm, "resuming kernel object tree...\n");
633 nvif_client_resume(&drm->client.base);
634
635 NV_INFO(drm, "resuming client object trees...\n");
636 if (drm->fence && nouveau_fence(drm)->resume)
637 nouveau_fence(drm)->resume(drm);
638
639 list_for_each_entry(cli, &drm->clients, head) {
640 nvif_client_resume(&cli->base);
641 }
642
643 nouveau_run_vbios_init(dev);
644
645 if (dev->mode_config.num_crtc) {
646 NV_INFO(drm, "resuming display...\n");
647 nouveau_display_resume(dev, runtime);
648 NV_INFO(drm, "resuming console...\n");
649 nouveau_fbcon_set_suspend(dev, 0);
650 }
651
652 return 0;
653 }
654
655 int
656 nouveau_pmops_suspend(struct device *dev)
657 {
658 struct pci_dev *pdev = to_pci_dev(dev);
659 struct drm_device *drm_dev = pci_get_drvdata(pdev);
660 int ret;
661
662 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
663 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
664 return 0;
665
666 ret = nouveau_do_suspend(drm_dev, false);
667 if (ret)
668 return ret;
669
670 pci_save_state(pdev);
671 pci_disable_device(pdev);
672 pci_set_power_state(pdev, PCI_D3hot);
673 udelay(200);
674 return 0;
675 }
676
677 int
678 nouveau_pmops_resume(struct device *dev)
679 {
680 struct pci_dev *pdev = to_pci_dev(dev);
681 struct drm_device *drm_dev = pci_get_drvdata(pdev);
682 int ret;
683
684 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
685 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
686 return 0;
687
688 pci_set_power_state(pdev, PCI_D0);
689 pci_restore_state(pdev);
690 ret = pci_enable_device(pdev);
691 if (ret)
692 return ret;
693 pci_set_master(pdev);
694
695 return nouveau_do_resume(drm_dev, false);
696 }
697
698 static int
699 nouveau_pmops_freeze(struct device *dev)
700 {
701 struct pci_dev *pdev = to_pci_dev(dev);
702 struct drm_device *drm_dev = pci_get_drvdata(pdev);
703 return nouveau_do_suspend(drm_dev, false);
704 }
705
706 static int
707 nouveau_pmops_thaw(struct device *dev)
708 {
709 struct pci_dev *pdev = to_pci_dev(dev);
710 struct drm_device *drm_dev = pci_get_drvdata(pdev);
711 return nouveau_do_resume(drm_dev, false);
712 }
713
714 static int
715 nouveau_pmops_runtime_suspend(struct device *dev)
716 {
717 struct pci_dev *pdev = to_pci_dev(dev);
718 struct drm_device *drm_dev = pci_get_drvdata(pdev);
719 int ret;
720
721 if (nouveau_runtime_pm == 0) {
722 pm_runtime_forbid(dev);
723 return -EBUSY;
724 }
725
726 /* are we optimus enabled? */
727 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
728 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
729 pm_runtime_forbid(dev);
730 return -EBUSY;
731 }
732
733 drm_kms_helper_poll_disable(drm_dev);
734 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
735 nouveau_switcheroo_optimus_dsm();
736 ret = nouveau_do_suspend(drm_dev, true);
737 pci_save_state(pdev);
738 pci_disable_device(pdev);
739 pci_ignore_hotplug(pdev);
740 pci_set_power_state(pdev, PCI_D3cold);
741 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
742 return ret;
743 }
744
745 static int
746 nouveau_pmops_runtime_resume(struct device *dev)
747 {
748 struct pci_dev *pdev = to_pci_dev(dev);
749 struct drm_device *drm_dev = pci_get_drvdata(pdev);
750 struct nvif_device *device = &nouveau_drm(drm_dev)->device;
751 int ret;
752
753 if (nouveau_runtime_pm == 0)
754 return -EINVAL;
755
756 pci_set_power_state(pdev, PCI_D0);
757 pci_restore_state(pdev);
758 ret = pci_enable_device(pdev);
759 if (ret)
760 return ret;
761 pci_set_master(pdev);
762
763 ret = nouveau_do_resume(drm_dev, true);
764 drm_kms_helper_poll_enable(drm_dev);
765 /* do magic */
766 nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
767 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
768 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
769 return ret;
770 }
771
772 static int
773 nouveau_pmops_runtime_idle(struct device *dev)
774 {
775 struct pci_dev *pdev = to_pci_dev(dev);
776 struct drm_device *drm_dev = pci_get_drvdata(pdev);
777 struct nouveau_drm *drm = nouveau_drm(drm_dev);
778 struct drm_crtc *crtc;
779
780 if (nouveau_runtime_pm == 0) {
781 pm_runtime_forbid(dev);
782 return -EBUSY;
783 }
784
785 /* are we optimus enabled? */
786 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
787 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
788 pm_runtime_forbid(dev);
789 return -EBUSY;
790 }
791
792 /* if we have a hdmi audio device - make sure it has a driver loaded */
793 if (drm->hdmi_device) {
794 if (!drm->hdmi_device->driver) {
795 DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
796 pm_runtime_mark_last_busy(dev);
797 return -EBUSY;
798 }
799 }
800
801 list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
802 if (crtc->enabled) {
803 DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
804 return -EBUSY;
805 }
806 }
807 pm_runtime_mark_last_busy(dev);
808 pm_runtime_autosuspend(dev);
809 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
810 return 1;
811 }
812
813 static int
814 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
815 {
816 struct nouveau_drm *drm = nouveau_drm(dev);
817 struct nouveau_cli *cli;
818 char name[32], tmpname[TASK_COMM_LEN];
819 int ret;
820
821 /* need to bring up power immediately if opening device */
822 ret = pm_runtime_get_sync(dev->dev);
823 if (ret < 0 && ret != -EACCES)
824 return ret;
825
826 get_task_comm(tmpname, current);
827 snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
828
829 ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
830
831 if (ret)
832 goto out_suspend;
833
834 cli->base.super = false;
835
836 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
837 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
838 0x1000, NULL, &cli->vm);
839 if (ret) {
840 nouveau_cli_destroy(cli);
841 goto out_suspend;
842 }
843
844 nvxx_client(&cli->base)->vm = cli->vm;
845 }
846
847 fpriv->driver_priv = cli;
848
849 mutex_lock(&drm->client.mutex);
850 list_add(&cli->head, &drm->clients);
851 mutex_unlock(&drm->client.mutex);
852
853 out_suspend:
854 pm_runtime_mark_last_busy(dev->dev);
855 pm_runtime_put_autosuspend(dev->dev);
856
857 return ret;
858 }
859
860 static void
861 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
862 {
863 struct nouveau_cli *cli = nouveau_cli(fpriv);
864 struct nouveau_drm *drm = nouveau_drm(dev);
865
866 pm_runtime_get_sync(dev->dev);
867
868 mutex_lock(&cli->mutex);
869 if (cli->abi16)
870 nouveau_abi16_fini(cli->abi16);
871 mutex_unlock(&cli->mutex);
872
873 mutex_lock(&drm->client.mutex);
874 list_del(&cli->head);
875 mutex_unlock(&drm->client.mutex);
876
877 }
878
879 static void
880 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
881 {
882 struct nouveau_cli *cli = nouveau_cli(fpriv);
883 nouveau_cli_destroy(cli);
884 pm_runtime_mark_last_busy(dev->dev);
885 pm_runtime_put_autosuspend(dev->dev);
886 }
887
888 static const struct drm_ioctl_desc
889 nouveau_ioctls[] = {
890 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
891 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
892 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
893 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
894 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
895 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
896 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
897 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
898 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
899 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
900 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
901 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
902 };
903
904 long
905 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
906 {
907 struct drm_file *filp = file->private_data;
908 struct drm_device *dev = filp->minor->dev;
909 long ret;
910
911 ret = pm_runtime_get_sync(dev->dev);
912 if (ret < 0 && ret != -EACCES)
913 return ret;
914
915 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
916 case DRM_NOUVEAU_NVIF:
917 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
918 break;
919 default:
920 ret = drm_ioctl(file, cmd, arg);
921 break;
922 }
923
924 pm_runtime_mark_last_busy(dev->dev);
925 pm_runtime_put_autosuspend(dev->dev);
926 return ret;
927 }
928
929 static const struct file_operations
930 nouveau_driver_fops = {
931 .owner = THIS_MODULE,
932 .open = drm_open,
933 .release = drm_release,
934 .unlocked_ioctl = nouveau_drm_ioctl,
935 .mmap = nouveau_ttm_mmap,
936 .poll = drm_poll,
937 .read = drm_read,
938 #if defined(CONFIG_COMPAT)
939 .compat_ioctl = nouveau_compat_ioctl,
940 #endif
941 .llseek = noop_llseek,
942 };
943
944 static struct drm_driver
945 driver_stub = {
946 .driver_features =
947 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
948 DRIVER_KMS_LEGACY_CONTEXT,
949
950 .load = nouveau_drm_load,
951 .unload = nouveau_drm_unload,
952 .open = nouveau_drm_open,
953 .preclose = nouveau_drm_preclose,
954 .postclose = nouveau_drm_postclose,
955 .lastclose = nouveau_vga_lastclose,
956
957 #if defined(CONFIG_DEBUG_FS)
958 .debugfs_init = nouveau_drm_debugfs_init,
959 .debugfs_cleanup = nouveau_drm_debugfs_cleanup,
960 #endif
961
962 .get_vblank_counter = drm_vblank_no_hw_counter,
963 .enable_vblank = nouveau_display_vblank_enable,
964 .disable_vblank = nouveau_display_vblank_disable,
965 .get_scanout_position = nouveau_display_scanoutpos,
966 .get_vblank_timestamp = nouveau_display_vblstamp,
967
968 .ioctls = nouveau_ioctls,
969 .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
970 .fops = &nouveau_driver_fops,
971
972 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
973 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
974 .gem_prime_export = drm_gem_prime_export,
975 .gem_prime_import = drm_gem_prime_import,
976 .gem_prime_pin = nouveau_gem_prime_pin,
977 .gem_prime_res_obj = nouveau_gem_prime_res_obj,
978 .gem_prime_unpin = nouveau_gem_prime_unpin,
979 .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
980 .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
981 .gem_prime_vmap = nouveau_gem_prime_vmap,
982 .gem_prime_vunmap = nouveau_gem_prime_vunmap,
983
984 .gem_free_object_unlocked = nouveau_gem_object_del,
985 .gem_open_object = nouveau_gem_object_open,
986 .gem_close_object = nouveau_gem_object_close,
987
988 .dumb_create = nouveau_display_dumb_create,
989 .dumb_map_offset = nouveau_display_dumb_map_offset,
990 .dumb_destroy = drm_gem_dumb_destroy,
991
992 .name = DRIVER_NAME,
993 .desc = DRIVER_DESC,
994 #ifdef GIT_REVISION
995 .date = GIT_REVISION,
996 #else
997 .date = DRIVER_DATE,
998 #endif
999 .major = DRIVER_MAJOR,
1000 .minor = DRIVER_MINOR,
1001 .patchlevel = DRIVER_PATCHLEVEL,
1002 };
1003
1004 static struct pci_device_id
1005 nouveau_drm_pci_table[] = {
1006 {
1007 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1008 .class = PCI_BASE_CLASS_DISPLAY << 16,
1009 .class_mask = 0xff << 16,
1010 },
1011 {
1012 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1013 .class = PCI_BASE_CLASS_DISPLAY << 16,
1014 .class_mask = 0xff << 16,
1015 },
1016 {}
1017 };
1018
1019 static void nouveau_display_options(void)
1020 {
1021 DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1022
1023 DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable);
1024 DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid);
1025 DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink);
1026 DRM_DEBUG_DRIVER("... nofbaccel : %d\n", nouveau_nofbaccel);
1027 DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config);
1028 DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug);
1029 DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel);
1030 DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset);
1031 DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm);
1032 DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1033 }
1034
1035 static const struct dev_pm_ops nouveau_pm_ops = {
1036 .suspend = nouveau_pmops_suspend,
1037 .resume = nouveau_pmops_resume,
1038 .freeze = nouveau_pmops_freeze,
1039 .thaw = nouveau_pmops_thaw,
1040 .poweroff = nouveau_pmops_freeze,
1041 .restore = nouveau_pmops_resume,
1042 .runtime_suspend = nouveau_pmops_runtime_suspend,
1043 .runtime_resume = nouveau_pmops_runtime_resume,
1044 .runtime_idle = nouveau_pmops_runtime_idle,
1045 };
1046
1047 static struct pci_driver
1048 nouveau_drm_pci_driver = {
1049 .name = "nouveau",
1050 .id_table = nouveau_drm_pci_table,
1051 .probe = nouveau_drm_probe,
1052 .remove = nouveau_drm_remove,
1053 .driver.pm = &nouveau_pm_ops,
1054 };
1055
1056 struct drm_device *
1057 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1058 struct platform_device *pdev,
1059 struct nvkm_device **pdevice)
1060 {
1061 struct drm_device *drm;
1062 int err;
1063
1064 err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1065 true, true, ~0ULL, pdevice);
1066 if (err)
1067 goto err_free;
1068
1069 drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1070 if (!drm) {
1071 err = -ENOMEM;
1072 goto err_free;
1073 }
1074
1075 drm->platformdev = pdev;
1076 platform_set_drvdata(pdev, drm);
1077
1078 return drm;
1079
1080 err_free:
1081 nvkm_device_del(pdevice);
1082
1083 return ERR_PTR(err);
1084 }
1085
1086 static int __init
1087 nouveau_drm_init(void)
1088 {
1089 driver_pci = driver_stub;
1090 driver_pci.set_busid = drm_pci_set_busid;
1091 driver_platform = driver_stub;
1092
1093 nouveau_display_options();
1094
1095 if (nouveau_modeset == -1) {
1096 if (vgacon_text_force())
1097 nouveau_modeset = 0;
1098 }
1099
1100 if (!nouveau_modeset)
1101 return 0;
1102
1103 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1104 platform_driver_register(&nouveau_platform_driver);
1105 #endif
1106
1107 nouveau_register_dsm_handler();
1108 return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1109 }
1110
1111 static void __exit
1112 nouveau_drm_exit(void)
1113 {
1114 if (!nouveau_modeset)
1115 return;
1116
1117 drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1118 nouveau_unregister_dsm_handler();
1119
1120 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1121 platform_driver_unregister(&nouveau_platform_driver);
1122 #endif
1123 }
1124
1125 module_init(nouveau_drm_init);
1126 module_exit(nouveau_drm_exit);
1127
1128 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1129 MODULE_AUTHOR(DRIVER_AUTHOR);
1130 MODULE_DESCRIPTION(DRIVER_DESC);
1131 MODULE_LICENSE("GPL and additional rights");
Linux kernel - Deliverables
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