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 "nouveau_drm.h"
41 #include "nouveau_dma.h"
42 #include "nouveau_ttm.h"
43 #include "nouveau_gem.h"
44 #include "nouveau_vga.h"
45 #include "nouveau_sysfs.h"
46 #include "nouveau_hwmon.h"
47 #include "nouveau_acpi.h"
48 #include "nouveau_bios.h"
49 #include "nouveau_ioctl.h"
50 #include "nouveau_abi16.h"
51 #include "nouveau_fbcon.h"
52 #include "nouveau_fence.h"
53 #include "nouveau_debugfs.h"
54 #include "nouveau_usif.h"
55 #include "nouveau_connector.h"
56 #include "nouveau_platform.h"
57
58 MODULE_PARM_DESC(config, "option string to pass to driver core");
59 static char *nouveau_config;
60 module_param_named(config, nouveau_config, charp, 0400);
61
62 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
63 static char *nouveau_debug;
64 module_param_named(debug, nouveau_debug, charp, 0400);
65
66 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
67 static int nouveau_noaccel = 0;
68 module_param_named(noaccel, nouveau_noaccel, int, 0400);
69
70 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
71 "0 = disabled, 1 = enabled, 2 = headless)");
72 int nouveau_modeset = -1;
73 module_param_named(modeset, nouveau_modeset, int, 0400);
74
75 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
76 int nouveau_runtime_pm = -1;
77 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
78
79 static struct drm_driver driver_stub;
80 static struct drm_driver driver_pci;
81 static struct drm_driver driver_platform;
82
83 static u64
nouveau_pci_name(struct pci_dev * pdev)84 nouveau_pci_name(struct pci_dev *pdev)
85 {
86 u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
87 name |= pdev->bus->number << 16;
88 name |= PCI_SLOT(pdev->devfn) << 8;
89 return name | PCI_FUNC(pdev->devfn);
90 }
91
92 static u64
nouveau_platform_name(struct platform_device * platformdev)93 nouveau_platform_name(struct platform_device *platformdev)
94 {
95 return platformdev->id;
96 }
97
98 static u64
nouveau_name(struct drm_device * dev)99 nouveau_name(struct drm_device *dev)
100 {
101 if (dev->pdev)
102 return nouveau_pci_name(dev->pdev);
103 else
104 return nouveau_platform_name(dev->platformdev);
105 }
106
107 static int
nouveau_cli_create(struct drm_device * dev,const char * sname,int size,void ** pcli)108 nouveau_cli_create(struct drm_device *dev, const char *sname,
109 int size, void **pcli)
110 {
111 struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
112 int ret;
113 if (cli) {
114 snprintf(cli->name, sizeof(cli->name), "%s", sname);
115 cli->dev = dev;
116
117 ret = nvif_client_init(NULL, cli->name, nouveau_name(dev),
118 nouveau_config, nouveau_debug,
119 &cli->base);
120 if (ret == 0) {
121 mutex_init(&cli->mutex);
122 usif_client_init(cli);
123 }
124 return ret;
125 }
126 return -ENOMEM;
127 }
128
129 static void
nouveau_cli_destroy(struct nouveau_cli * cli)130 nouveau_cli_destroy(struct nouveau_cli *cli)
131 {
132 nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
133 nvif_client_fini(&cli->base);
134 usif_client_fini(cli);
135 kfree(cli);
136 }
137
138 static void
nouveau_accel_fini(struct nouveau_drm * drm)139 nouveau_accel_fini(struct nouveau_drm *drm)
140 {
141 nouveau_channel_idle(drm->channel);
142 nvif_object_fini(&drm->ntfy);
143 nvkm_gpuobj_del(&drm->notify);
144 nvif_notify_fini(&drm->flip);
145 nvif_object_fini(&drm->nvsw);
146 nouveau_channel_del(&drm->channel);
147
148 nouveau_channel_idle(drm->cechan);
149 nvif_object_fini(&drm->ttm.copy);
150 nouveau_channel_del(&drm->cechan);
151
152 if (drm->fence)
153 nouveau_fence(drm)->dtor(drm);
154 }
155
156 static void
nouveau_accel_init(struct nouveau_drm * drm)157 nouveau_accel_init(struct nouveau_drm *drm)
158 {
159 struct nvif_device *device = &drm->device;
160 struct nvif_sclass *sclass;
161 u32 arg0, arg1;
162 int ret, i, n;
163
164 if (nouveau_noaccel)
165 return;
166
167 /* initialise synchronisation routines */
168 /*XXX: this is crap, but the fence/channel stuff is a little
169 * backwards in some places. this will be fixed.
170 */
171 ret = n = nvif_object_sclass_get(&device->object, &sclass);
172 if (ret < 0)
173 return;
174
175 for (ret = -ENOSYS, i = 0; i < n; i++) {
176 switch (sclass[i].oclass) {
177 case NV03_CHANNEL_DMA:
178 ret = nv04_fence_create(drm);
179 break;
180 case NV10_CHANNEL_DMA:
181 ret = nv10_fence_create(drm);
182 break;
183 case NV17_CHANNEL_DMA:
184 case NV40_CHANNEL_DMA:
185 ret = nv17_fence_create(drm);
186 break;
187 case NV50_CHANNEL_GPFIFO:
188 ret = nv50_fence_create(drm);
189 break;
190 case G82_CHANNEL_GPFIFO:
191 ret = nv84_fence_create(drm);
192 break;
193 case FERMI_CHANNEL_GPFIFO:
194 case KEPLER_CHANNEL_GPFIFO_A:
195 case MAXWELL_CHANNEL_GPFIFO_A:
196 ret = nvc0_fence_create(drm);
197 break;
198 default:
199 break;
200 }
201 }
202
203 nvif_object_sclass_put(&sclass);
204 if (ret) {
205 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
206 nouveau_accel_fini(drm);
207 return;
208 }
209
210 if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
211 ret = nouveau_channel_new(drm, &drm->device,
212 KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
213 KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
214 0, &drm->cechan);
215 if (ret)
216 NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
217
218 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
219 arg1 = 1;
220 } else
221 if (device->info.chipset >= 0xa3 &&
222 device->info.chipset != 0xaa &&
223 device->info.chipset != 0xac) {
224 ret = nouveau_channel_new(drm, &drm->device,
225 NvDmaFB, NvDmaTT, &drm->cechan);
226 if (ret)
227 NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
228
229 arg0 = NvDmaFB;
230 arg1 = NvDmaTT;
231 } else {
232 arg0 = NvDmaFB;
233 arg1 = NvDmaTT;
234 }
235
236 ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel);
237 if (ret) {
238 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
239 nouveau_accel_fini(drm);
240 return;
241 }
242
243 ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
244 nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
245 if (ret == 0) {
246 ret = RING_SPACE(drm->channel, 2);
247 if (ret == 0) {
248 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
249 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
250 OUT_RING (drm->channel, NVDRM_NVSW);
251 } else
252 if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
253 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
254 OUT_RING (drm->channel, 0x001f0000);
255 }
256 }
257
258 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
259 false, NVSW_NTFY_UEVENT, NULL, 0, 0,
260 &drm->flip);
261 if (ret == 0)
262 ret = nvif_notify_get(&drm->flip);
263 if (ret) {
264 nouveau_accel_fini(drm);
265 return;
266 }
267 }
268
269 if (ret) {
270 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
271 nouveau_accel_fini(drm);
272 return;
273 }
274
275 if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
276 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
277 NULL, &drm->notify);
278 if (ret) {
279 NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
280 nouveau_accel_fini(drm);
281 return;
282 }
283
284 ret = nvif_object_init(&drm->channel->user, NvNotify0,
285 NV_DMA_IN_MEMORY,
286 &(struct nv_dma_v0) {
287 .target = NV_DMA_V0_TARGET_VRAM,
288 .access = NV_DMA_V0_ACCESS_RDWR,
289 .start = drm->notify->addr,
290 .limit = drm->notify->addr + 31
291 }, sizeof(struct nv_dma_v0),
292 &drm->ntfy);
293 if (ret) {
294 nouveau_accel_fini(drm);
295 return;
296 }
297 }
298
299
300 nouveau_bo_move_init(drm);
301 }
302
nouveau_drm_probe(struct pci_dev * pdev,const struct pci_device_id * pent)303 static int nouveau_drm_probe(struct pci_dev *pdev,
304 const struct pci_device_id *pent)
305 {
306 struct nvkm_device *device;
307 struct apertures_struct *aper;
308 bool boot = false;
309 int ret;
310
311 /* We need to check that the chipset is supported before booting
312 * fbdev off the hardware, as there's no way to put it back.
313 */
314 ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
315 if (ret)
316 return ret;
317
318 nvkm_device_del(&device);
319
320 /* Remove conflicting drivers (vesafb, efifb etc). */
321 aper = alloc_apertures(3);
322 if (!aper)
323 return -ENOMEM;
324
325 aper->ranges[0].base = pci_resource_start(pdev, 1);
326 aper->ranges[0].size = pci_resource_len(pdev, 1);
327 aper->count = 1;
328
329 if (pci_resource_len(pdev, 2)) {
330 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
331 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
332 aper->count++;
333 }
334
335 if (pci_resource_len(pdev, 3)) {
336 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
337 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
338 aper->count++;
339 }
340
341 #ifdef CONFIG_X86
342 boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
343 #endif
344 if (nouveau_modeset != 2)
345 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
346 kfree(aper);
347
348 ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
349 true, true, ~0ULL, &device);
350 if (ret)
351 return ret;
352
353 pci_set_master(pdev);
354
355 ret = drm_get_pci_dev(pdev, pent, &driver_pci);
356 if (ret) {
357 nvkm_device_del(&device);
358 return ret;
359 }
360
361 return 0;
362 }
363
364 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
365
366 static void
nouveau_get_hdmi_dev(struct nouveau_drm * drm)367 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
368 {
369 struct pci_dev *pdev = drm->dev->pdev;
370
371 if (!pdev) {
372 DRM_INFO("not a PCI device; no HDMI\n");
373 drm->hdmi_device = NULL;
374 return;
375 }
376
377 /* subfunction one is a hdmi audio device? */
378 drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
379 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
380
381 if (!drm->hdmi_device) {
382 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
383 return;
384 }
385
386 if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
387 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
388 pci_dev_put(drm->hdmi_device);
389 drm->hdmi_device = NULL;
390 return;
391 }
392 }
393
394 static int
nouveau_drm_load(struct drm_device * dev,unsigned long flags)395 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
396 {
397 struct nouveau_drm *drm;
398 int ret;
399
400 ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
401 if (ret)
402 return ret;
403
404 dev->dev_private = drm;
405 drm->dev = dev;
406 nvxx_client(&drm->client.base)->debug =
407 nvkm_dbgopt(nouveau_debug, "DRM");
408
409 INIT_LIST_HEAD(&drm->clients);
410 spin_lock_init(&drm->tile.lock);
411
412 nouveau_get_hdmi_dev(drm);
413
414 ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE,
415 &(struct nv_device_v0) {
416 .device = ~0,
417 }, sizeof(struct nv_device_v0),
418 &drm->device);
419 if (ret)
420 goto fail_device;
421
422 dev->irq_enabled = true;
423
424 /* workaround an odd issue on nvc1 by disabling the device's
425 * nosnoop capability. hopefully won't cause issues until a
426 * better fix is found - assuming there is one...
427 */
428 if (drm->device.info.chipset == 0xc1)
429 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
430
431 nouveau_vga_init(drm);
432
433 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
434 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
435 0x1000, NULL, &drm->client.vm);
436 if (ret)
437 goto fail_device;
438
439 nvxx_client(&drm->client.base)->vm = drm->client.vm;
440 }
441
442 ret = nouveau_ttm_init(drm);
443 if (ret)
444 goto fail_ttm;
445
446 ret = nouveau_bios_init(dev);
447 if (ret)
448 goto fail_bios;
449
450 ret = nouveau_display_create(dev);
451 if (ret)
452 goto fail_dispctor;
453
454 if (dev->mode_config.num_crtc) {
455 ret = nouveau_display_init(dev);
456 if (ret)
457 goto fail_dispinit;
458 }
459
460 nouveau_sysfs_init(dev);
461 nouveau_hwmon_init(dev);
462 nouveau_accel_init(drm);
463 nouveau_fbcon_init(dev);
464
465 if (nouveau_runtime_pm != 0) {
466 pm_runtime_use_autosuspend(dev->dev);
467 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
468 pm_runtime_set_active(dev->dev);
469 pm_runtime_allow(dev->dev);
470 pm_runtime_mark_last_busy(dev->dev);
471 pm_runtime_put(dev->dev);
472 }
473 return 0;
474
475 fail_dispinit:
476 nouveau_display_destroy(dev);
477 fail_dispctor:
478 nouveau_bios_takedown(dev);
479 fail_bios:
480 nouveau_ttm_fini(drm);
481 fail_ttm:
482 nouveau_vga_fini(drm);
483 fail_device:
484 nvif_device_fini(&drm->device);
485 nouveau_cli_destroy(&drm->client);
486 return ret;
487 }
488
489 static int
nouveau_drm_unload(struct drm_device * dev)490 nouveau_drm_unload(struct drm_device *dev)
491 {
492 struct nouveau_drm *drm = nouveau_drm(dev);
493
494 pm_runtime_get_sync(dev->dev);
495 nouveau_fbcon_fini(dev);
496 nouveau_accel_fini(drm);
497 nouveau_hwmon_fini(dev);
498 nouveau_sysfs_fini(dev);
499
500 if (dev->mode_config.num_crtc)
501 nouveau_display_fini(dev);
502 nouveau_display_destroy(dev);
503
504 nouveau_bios_takedown(dev);
505
506 nouveau_ttm_fini(drm);
507 nouveau_vga_fini(drm);
508
509 nvif_device_fini(&drm->device);
510 if (drm->hdmi_device)
511 pci_dev_put(drm->hdmi_device);
512 nouveau_cli_destroy(&drm->client);
513 return 0;
514 }
515
516 void
nouveau_drm_device_remove(struct drm_device * dev)517 nouveau_drm_device_remove(struct drm_device *dev)
518 {
519 struct nouveau_drm *drm = nouveau_drm(dev);
520 struct nvkm_client *client;
521 struct nvkm_device *device;
522
523 dev->irq_enabled = false;
524 client = nvxx_client(&drm->client.base);
525 device = nvkm_device_find(client->device);
526 drm_put_dev(dev);
527
528 nvkm_device_del(&device);
529 }
530
531 static void
nouveau_drm_remove(struct pci_dev * pdev)532 nouveau_drm_remove(struct pci_dev *pdev)
533 {
534 struct drm_device *dev = pci_get_drvdata(pdev);
535
536 nouveau_drm_device_remove(dev);
537 }
538
539 static int
nouveau_do_suspend(struct drm_device * dev,bool runtime)540 nouveau_do_suspend(struct drm_device *dev, bool runtime)
541 {
542 struct nouveau_drm *drm = nouveau_drm(dev);
543 struct nouveau_cli *cli;
544 int ret;
545
546 if (dev->mode_config.num_crtc) {
547 NV_INFO(drm, "suspending console...\n");
548 nouveau_fbcon_set_suspend(dev, 1);
549 NV_INFO(drm, "suspending display...\n");
550 ret = nouveau_display_suspend(dev, runtime);
551 if (ret)
552 return ret;
553 }
554
555 NV_INFO(drm, "evicting buffers...\n");
556 ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
557
558 NV_INFO(drm, "waiting for kernel channels to go idle...\n");
559 if (drm->cechan) {
560 ret = nouveau_channel_idle(drm->cechan);
561 if (ret)
562 goto fail_display;
563 }
564
565 if (drm->channel) {
566 ret = nouveau_channel_idle(drm->channel);
567 if (ret)
568 goto fail_display;
569 }
570
571 NV_INFO(drm, "suspending client object trees...\n");
572 if (drm->fence && nouveau_fence(drm)->suspend) {
573 if (!nouveau_fence(drm)->suspend(drm)) {
574 ret = -ENOMEM;
575 goto fail_display;
576 }
577 }
578
579 list_for_each_entry(cli, &drm->clients, head) {
580 ret = nvif_client_suspend(&cli->base);
581 if (ret)
582 goto fail_client;
583 }
584
585 NV_INFO(drm, "suspending kernel object tree...\n");
586 ret = nvif_client_suspend(&drm->client.base);
587 if (ret)
588 goto fail_client;
589
590 return 0;
591
592 fail_client:
593 list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
594 nvif_client_resume(&cli->base);
595 }
596
597 if (drm->fence && nouveau_fence(drm)->resume)
598 nouveau_fence(drm)->resume(drm);
599
600 fail_display:
601 if (dev->mode_config.num_crtc) {
602 NV_INFO(drm, "resuming display...\n");
603 nouveau_display_resume(dev, runtime);
604 }
605 return ret;
606 }
607
608 static int
nouveau_do_resume(struct drm_device * dev,bool runtime)609 nouveau_do_resume(struct drm_device *dev, bool runtime)
610 {
611 struct nouveau_drm *drm = nouveau_drm(dev);
612 struct nouveau_cli *cli;
613
614 NV_INFO(drm, "resuming kernel object tree...\n");
615 nvif_client_resume(&drm->client.base);
616
617 NV_INFO(drm, "resuming client object trees...\n");
618 if (drm->fence && nouveau_fence(drm)->resume)
619 nouveau_fence(drm)->resume(drm);
620
621 list_for_each_entry(cli, &drm->clients, head) {
622 nvif_client_resume(&cli->base);
623 }
624
625 nouveau_run_vbios_init(dev);
626
627 if (dev->mode_config.num_crtc) {
628 NV_INFO(drm, "resuming display...\n");
629 nouveau_display_resume(dev, runtime);
630 NV_INFO(drm, "resuming console...\n");
631 nouveau_fbcon_set_suspend(dev, 0);
632 }
633
634 return 0;
635 }
636
637 int
nouveau_pmops_suspend(struct device * dev)638 nouveau_pmops_suspend(struct device *dev)
639 {
640 struct pci_dev *pdev = to_pci_dev(dev);
641 struct drm_device *drm_dev = pci_get_drvdata(pdev);
642 int ret;
643
644 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
645 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
646 return 0;
647
648 ret = nouveau_do_suspend(drm_dev, false);
649 if (ret)
650 return ret;
651
652 pci_save_state(pdev);
653 pci_disable_device(pdev);
654 pci_set_power_state(pdev, PCI_D3hot);
655 udelay(200);
656 return 0;
657 }
658
659 int
nouveau_pmops_resume(struct device * dev)660 nouveau_pmops_resume(struct device *dev)
661 {
662 struct pci_dev *pdev = to_pci_dev(dev);
663 struct drm_device *drm_dev = pci_get_drvdata(pdev);
664 int ret;
665
666 if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
667 drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
668 return 0;
669
670 pci_set_power_state(pdev, PCI_D0);
671 pci_restore_state(pdev);
672 ret = pci_enable_device(pdev);
673 if (ret)
674 return ret;
675 pci_set_master(pdev);
676
677 return nouveau_do_resume(drm_dev, false);
678 }
679
680 static int
nouveau_pmops_freeze(struct device * dev)681 nouveau_pmops_freeze(struct device *dev)
682 {
683 struct pci_dev *pdev = to_pci_dev(dev);
684 struct drm_device *drm_dev = pci_get_drvdata(pdev);
685 return nouveau_do_suspend(drm_dev, false);
686 }
687
688 static int
nouveau_pmops_thaw(struct device * dev)689 nouveau_pmops_thaw(struct device *dev)
690 {
691 struct pci_dev *pdev = to_pci_dev(dev);
692 struct drm_device *drm_dev = pci_get_drvdata(pdev);
693 return nouveau_do_resume(drm_dev, false);
694 }
695
696 static int
nouveau_pmops_runtime_suspend(struct device * dev)697 nouveau_pmops_runtime_suspend(struct device *dev)
698 {
699 struct pci_dev *pdev = to_pci_dev(dev);
700 struct drm_device *drm_dev = pci_get_drvdata(pdev);
701 int ret;
702
703 if (nouveau_runtime_pm == 0) {
704 pm_runtime_forbid(dev);
705 return -EBUSY;
706 }
707
708 /* are we optimus enabled? */
709 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
710 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
711 pm_runtime_forbid(dev);
712 return -EBUSY;
713 }
714
715 drm_kms_helper_poll_disable(drm_dev);
716 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
717 nouveau_switcheroo_optimus_dsm();
718 ret = nouveau_do_suspend(drm_dev, true);
719 pci_save_state(pdev);
720 pci_disable_device(pdev);
721 pci_ignore_hotplug(pdev);
722 pci_set_power_state(pdev, PCI_D3cold);
723 drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
724 return ret;
725 }
726
727 static int
nouveau_pmops_runtime_resume(struct device * dev)728 nouveau_pmops_runtime_resume(struct device *dev)
729 {
730 struct pci_dev *pdev = to_pci_dev(dev);
731 struct drm_device *drm_dev = pci_get_drvdata(pdev);
732 struct nvif_device *device = &nouveau_drm(drm_dev)->device;
733 int ret;
734
735 if (nouveau_runtime_pm == 0)
736 return -EINVAL;
737
738 pci_set_power_state(pdev, PCI_D0);
739 pci_restore_state(pdev);
740 ret = pci_enable_device(pdev);
741 if (ret)
742 return ret;
743 pci_set_master(pdev);
744
745 ret = nouveau_do_resume(drm_dev, true);
746
747 if (!drm_dev->mode_config.poll_enabled)
748 drm_kms_helper_poll_enable(drm_dev);
749
750 /* do magic */
751 nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
752 vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
753 drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
754 return ret;
755 }
756
757 static int
nouveau_pmops_runtime_idle(struct device * dev)758 nouveau_pmops_runtime_idle(struct device *dev)
759 {
760 struct pci_dev *pdev = to_pci_dev(dev);
761 struct drm_device *drm_dev = pci_get_drvdata(pdev);
762 struct nouveau_drm *drm = nouveau_drm(drm_dev);
763 struct drm_crtc *crtc;
764
765 if (nouveau_runtime_pm == 0) {
766 pm_runtime_forbid(dev);
767 return -EBUSY;
768 }
769
770 /* are we optimus enabled? */
771 if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
772 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
773 pm_runtime_forbid(dev);
774 return -EBUSY;
775 }
776
777 /* if we have a hdmi audio device - make sure it has a driver loaded */
778 if (drm->hdmi_device) {
779 if (!drm->hdmi_device->driver) {
780 DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
781 pm_runtime_mark_last_busy(dev);
782 return -EBUSY;
783 }
784 }
785
786 list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
787 if (crtc->enabled) {
788 DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
789 return -EBUSY;
790 }
791 }
792 pm_runtime_mark_last_busy(dev);
793 pm_runtime_autosuspend(dev);
794 /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
795 return 1;
796 }
797
798 static int
nouveau_drm_open(struct drm_device * dev,struct drm_file * fpriv)799 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
800 {
801 struct nouveau_drm *drm = nouveau_drm(dev);
802 struct nouveau_cli *cli;
803 char name[32], tmpname[TASK_COMM_LEN];
804 int ret;
805
806 /* need to bring up power immediately if opening device */
807 ret = pm_runtime_get_sync(dev->dev);
808 if (ret < 0 && ret != -EACCES) {
809 pm_runtime_put_autosuspend(dev->dev);
810 return ret;
811 }
812
813 get_task_comm(tmpname, current);
814 snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
815
816 ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
817
818 if (ret)
819 goto out_suspend;
820
821 cli->base.super = false;
822
823 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
824 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
825 0x1000, NULL, &cli->vm);
826 if (ret) {
827 nouveau_cli_destroy(cli);
828 goto out_suspend;
829 }
830
831 nvxx_client(&cli->base)->vm = cli->vm;
832 }
833
834 fpriv->driver_priv = cli;
835
836 mutex_lock(&drm->client.mutex);
837 list_add(&cli->head, &drm->clients);
838 mutex_unlock(&drm->client.mutex);
839
840 out_suspend:
841 pm_runtime_mark_last_busy(dev->dev);
842 pm_runtime_put_autosuspend(dev->dev);
843
844 return ret;
845 }
846
847 static void
nouveau_drm_preclose(struct drm_device * dev,struct drm_file * fpriv)848 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
849 {
850 struct nouveau_cli *cli = nouveau_cli(fpriv);
851 struct nouveau_drm *drm = nouveau_drm(dev);
852
853 pm_runtime_get_sync(dev->dev);
854
855 mutex_lock(&cli->mutex);
856 if (cli->abi16)
857 nouveau_abi16_fini(cli->abi16);
858 mutex_unlock(&cli->mutex);
859
860 mutex_lock(&drm->client.mutex);
861 list_del(&cli->head);
862 mutex_unlock(&drm->client.mutex);
863
864 }
865
866 static void
nouveau_drm_postclose(struct drm_device * dev,struct drm_file * fpriv)867 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
868 {
869 struct nouveau_cli *cli = nouveau_cli(fpriv);
870 nouveau_cli_destroy(cli);
871 pm_runtime_mark_last_busy(dev->dev);
872 pm_runtime_put_autosuspend(dev->dev);
873 }
874
875 static const struct drm_ioctl_desc
876 nouveau_ioctls[] = {
877 DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
878 DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
879 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
880 DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
881 DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
882 DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
883 DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
884 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
885 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
886 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
887 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
888 DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
889 };
890
891 long
nouveau_drm_ioctl(struct file * file,unsigned int cmd,unsigned long arg)892 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
893 {
894 struct drm_file *filp = file->private_data;
895 struct drm_device *dev = filp->minor->dev;
896 long ret;
897
898 ret = pm_runtime_get_sync(dev->dev);
899 if (ret < 0 && ret != -EACCES) {
900 pm_runtime_put_autosuspend(dev->dev);
901 return ret;
902 }
903
904 switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
905 case DRM_NOUVEAU_NVIF:
906 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
907 break;
908 default:
909 ret = drm_ioctl(file, cmd, arg);
910 break;
911 }
912
913 pm_runtime_mark_last_busy(dev->dev);
914 pm_runtime_put_autosuspend(dev->dev);
915 return ret;
916 }
917
918 static const struct file_operations
919 nouveau_driver_fops = {
920 .owner = THIS_MODULE,
921 .open = drm_open,
922 .release = drm_release,
923 .unlocked_ioctl = nouveau_drm_ioctl,
924 .mmap = nouveau_ttm_mmap,
925 .poll = drm_poll,
926 .read = drm_read,
927 #if defined(CONFIG_COMPAT)
928 .compat_ioctl = nouveau_compat_ioctl,
929 #endif
930 .llseek = noop_llseek,
931 };
932
933 static struct drm_driver
934 driver_stub = {
935 .driver_features =
936 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
937 DRIVER_KMS_LEGACY_CONTEXT,
938
939 .load = nouveau_drm_load,
940 .unload = nouveau_drm_unload,
941 .open = nouveau_drm_open,
942 .preclose = nouveau_drm_preclose,
943 .postclose = nouveau_drm_postclose,
944 .lastclose = nouveau_vga_lastclose,
945
946 #if defined(CONFIG_DEBUG_FS)
947 .debugfs_init = nouveau_debugfs_init,
948 .debugfs_cleanup = nouveau_debugfs_takedown,
949 #endif
950
951 .get_vblank_counter = drm_vblank_no_hw_counter,
952 .enable_vblank = nouveau_display_vblank_enable,
953 .disable_vblank = nouveau_display_vblank_disable,
954 .get_scanout_position = nouveau_display_scanoutpos,
955 .get_vblank_timestamp = nouveau_display_vblstamp,
956
957 .ioctls = nouveau_ioctls,
958 .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
959 .fops = &nouveau_driver_fops,
960
961 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
962 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
963 .gem_prime_export = drm_gem_prime_export,
964 .gem_prime_import = drm_gem_prime_import,
965 .gem_prime_pin = nouveau_gem_prime_pin,
966 .gem_prime_res_obj = nouveau_gem_prime_res_obj,
967 .gem_prime_unpin = nouveau_gem_prime_unpin,
968 .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
969 .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
970 .gem_prime_vmap = nouveau_gem_prime_vmap,
971 .gem_prime_vunmap = nouveau_gem_prime_vunmap,
972
973 .gem_free_object = nouveau_gem_object_del,
974 .gem_open_object = nouveau_gem_object_open,
975 .gem_close_object = nouveau_gem_object_close,
976
977 .dumb_create = nouveau_display_dumb_create,
978 .dumb_map_offset = nouveau_display_dumb_map_offset,
979 .dumb_destroy = drm_gem_dumb_destroy,
980
981 .name = DRIVER_NAME,
982 .desc = DRIVER_DESC,
983 #ifdef GIT_REVISION
984 .date = GIT_REVISION,
985 #else
986 .date = DRIVER_DATE,
987 #endif
988 .major = DRIVER_MAJOR,
989 .minor = DRIVER_MINOR,
990 .patchlevel = DRIVER_PATCHLEVEL,
991 };
992
993 static struct pci_device_id
994 nouveau_drm_pci_table[] = {
995 {
996 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
997 .class = PCI_BASE_CLASS_DISPLAY << 16,
998 .class_mask = 0xff << 16,
999 },
1000 {
1001 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1002 .class = PCI_BASE_CLASS_DISPLAY << 16,
1003 .class_mask = 0xff << 16,
1004 },
1005 {}
1006 };
1007
nouveau_display_options(void)1008 static void nouveau_display_options(void)
1009 {
1010 DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1011
1012 DRM_DEBUG_DRIVER("... tv_disable : %d\n", nouveau_tv_disable);
1013 DRM_DEBUG_DRIVER("... ignorelid : %d\n", nouveau_ignorelid);
1014 DRM_DEBUG_DRIVER("... duallink : %d\n", nouveau_duallink);
1015 DRM_DEBUG_DRIVER("... nofbaccel : %d\n", nouveau_nofbaccel);
1016 DRM_DEBUG_DRIVER("... config : %s\n", nouveau_config);
1017 DRM_DEBUG_DRIVER("... debug : %s\n", nouveau_debug);
1018 DRM_DEBUG_DRIVER("... noaccel : %d\n", nouveau_noaccel);
1019 DRM_DEBUG_DRIVER("... modeset : %d\n", nouveau_modeset);
1020 DRM_DEBUG_DRIVER("... runpm : %d\n", nouveau_runtime_pm);
1021 DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1022 DRM_DEBUG_DRIVER("... pstate : %d\n", nouveau_pstate);
1023 }
1024
1025 static const struct dev_pm_ops nouveau_pm_ops = {
1026 .suspend = nouveau_pmops_suspend,
1027 .resume = nouveau_pmops_resume,
1028 .freeze = nouveau_pmops_freeze,
1029 .thaw = nouveau_pmops_thaw,
1030 .poweroff = nouveau_pmops_freeze,
1031 .restore = nouveau_pmops_resume,
1032 .runtime_suspend = nouveau_pmops_runtime_suspend,
1033 .runtime_resume = nouveau_pmops_runtime_resume,
1034 .runtime_idle = nouveau_pmops_runtime_idle,
1035 };
1036
1037 static struct pci_driver
1038 nouveau_drm_pci_driver = {
1039 .name = "nouveau",
1040 .id_table = nouveau_drm_pci_table,
1041 .probe = nouveau_drm_probe,
1042 .remove = nouveau_drm_remove,
1043 .driver.pm = &nouveau_pm_ops,
1044 };
1045
1046 struct drm_device *
nouveau_platform_device_create(const struct nvkm_device_tegra_func * func,struct platform_device * pdev,struct nvkm_device ** pdevice)1047 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1048 struct platform_device *pdev,
1049 struct nvkm_device **pdevice)
1050 {
1051 struct drm_device *drm;
1052 int err;
1053
1054 err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1055 true, true, ~0ULL, pdevice);
1056 if (err)
1057 goto err_free;
1058
1059 drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1060 if (!drm) {
1061 err = -ENOMEM;
1062 goto err_free;
1063 }
1064
1065 err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
1066 if (err < 0)
1067 goto err_free;
1068
1069 drm->platformdev = pdev;
1070 platform_set_drvdata(pdev, drm);
1071
1072 return drm;
1073
1074 err_free:
1075 nvkm_device_del(pdevice);
1076
1077 return ERR_PTR(err);
1078 }
1079
1080 static int __init
nouveau_drm_init(void)1081 nouveau_drm_init(void)
1082 {
1083 driver_pci = driver_stub;
1084 driver_pci.set_busid = drm_pci_set_busid;
1085 driver_platform = driver_stub;
1086 driver_platform.set_busid = drm_platform_set_busid;
1087
1088 nouveau_display_options();
1089
1090 if (nouveau_modeset == -1) {
1091 #ifdef CONFIG_VGA_CONSOLE
1092 if (vgacon_text_force())
1093 nouveau_modeset = 0;
1094 #endif
1095 }
1096
1097 if (!nouveau_modeset)
1098 return 0;
1099
1100 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1101 platform_driver_register(&nouveau_platform_driver);
1102 #endif
1103
1104 nouveau_register_dsm_handler();
1105 return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1106 }
1107
1108 static void __exit
nouveau_drm_exit(void)1109 nouveau_drm_exit(void)
1110 {
1111 if (!nouveau_modeset)
1112 return;
1113
1114 drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1115 nouveau_unregister_dsm_handler();
1116
1117 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1118 platform_driver_unregister(&nouveau_platform_driver);
1119 #endif
1120 }
1121
1122 module_init(nouveau_drm_init);
1123 module_exit(nouveau_drm_exit);
1124
1125 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1126 MODULE_AUTHOR(DRIVER_AUTHOR);
1127 MODULE_DESCRIPTION(DRIVER_DESC);
1128 MODULE_LICENSE("GPL and additional rights");
1129