Version:  2.0.40 2.2.26 2.4.37 3.13 3.14 3.15 3.16 3.17 3.18 3.19 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 4.9 4.10

Linux/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_led.h"
 51 #include "nouveau_hwmon.h"
 52 #include "nouveau_acpi.h"
 53 #include "nouveau_bios.h"
 54 #include "nouveau_ioctl.h"
 55 #include "nouveau_abi16.h"
 56 #include "nouveau_fbcon.h"
 57 #include "nouveau_fence.h"
 58 #include "nouveau_debugfs.h"
 59 #include "nouveau_usif.h"
 60 #include "nouveau_connector.h"
 61 #include "nouveau_platform.h"
 62 
 63 MODULE_PARM_DESC(config, "option string to pass to driver core");
 64 static char *nouveau_config;
 65 module_param_named(config, nouveau_config, charp, 0400);
 66 
 67 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
 68 static char *nouveau_debug;
 69 module_param_named(debug, nouveau_debug, charp, 0400);
 70 
 71 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
 72 static int nouveau_noaccel = 0;
 73 module_param_named(noaccel, nouveau_noaccel, int, 0400);
 74 
 75 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
 76                           "0 = disabled, 1 = enabled, 2 = headless)");
 77 int nouveau_modeset = -1;
 78 module_param_named(modeset, nouveau_modeset, int, 0400);
 79 
 80 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
 81 int nouveau_runtime_pm = -1;
 82 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
 83 
 84 static struct drm_driver driver_stub;
 85 static struct drm_driver driver_pci;
 86 static struct drm_driver driver_platform;
 87 
 88 static u64
 89 nouveau_pci_name(struct pci_dev *pdev)
 90 {
 91         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
 92         name |= pdev->bus->number << 16;
 93         name |= PCI_SLOT(pdev->devfn) << 8;
 94         return name | PCI_FUNC(pdev->devfn);
 95 }
 96 
 97 static u64
 98 nouveau_platform_name(struct platform_device *platformdev)
 99 {
100         return platformdev->id;
101 }
102 
103 static u64
104 nouveau_name(struct drm_device *dev)
105 {
106         if (dev->pdev)
107                 return nouveau_pci_name(dev->pdev);
108         else
109                 return nouveau_platform_name(dev->platformdev);
110 }
111 
112 static int
113 nouveau_cli_create(struct drm_device *dev, const char *sname,
114                    int size, void **pcli)
115 {
116         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
117         int ret;
118         if (cli) {
119                 snprintf(cli->name, sizeof(cli->name), "%s", sname);
120                 cli->dev = dev;
121 
122                 ret = nvif_client_init(NULL, cli->name, nouveau_name(dev),
123                                        nouveau_config, nouveau_debug,
124                                        &cli->base);
125                 if (ret == 0) {
126                         mutex_init(&cli->mutex);
127                         usif_client_init(cli);
128                 }
129                 return ret;
130         }
131         return -ENOMEM;
132 }
133 
134 static void
135 nouveau_cli_destroy(struct nouveau_cli *cli)
136 {
137         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
138         nvif_client_fini(&cli->base);
139         usif_client_fini(cli);
140         kfree(cli);
141 }
142 
143 static void
144 nouveau_accel_fini(struct nouveau_drm *drm)
145 {
146         nouveau_channel_idle(drm->channel);
147         nvif_object_fini(&drm->ntfy);
148         nvkm_gpuobj_del(&drm->notify);
149         nvif_notify_fini(&drm->flip);
150         nvif_object_fini(&drm->nvsw);
151         nouveau_channel_del(&drm->channel);
152 
153         nouveau_channel_idle(drm->cechan);
154         nvif_object_fini(&drm->ttm.copy);
155         nouveau_channel_del(&drm->cechan);
156 
157         if (drm->fence)
158                 nouveau_fence(drm)->dtor(drm);
159 }
160 
161 static void
162 nouveau_accel_init(struct nouveau_drm *drm)
163 {
164         struct nvif_device *device = &drm->device;
165         struct nvif_sclass *sclass;
166         u32 arg0, arg1;
167         int ret, i, n;
168 
169         if (nouveau_noaccel)
170                 return;
171 
172         /* initialise synchronisation routines */
173         /*XXX: this is crap, but the fence/channel stuff is a little
174          *     backwards in some places.  this will be fixed.
175          */
176         ret = n = nvif_object_sclass_get(&device->object, &sclass);
177         if (ret < 0)
178                 return;
179 
180         for (ret = -ENOSYS, i = 0; i < n; i++) {
181                 switch (sclass[i].oclass) {
182                 case NV03_CHANNEL_DMA:
183                         ret = nv04_fence_create(drm);
184                         break;
185                 case NV10_CHANNEL_DMA:
186                         ret = nv10_fence_create(drm);
187                         break;
188                 case NV17_CHANNEL_DMA:
189                 case NV40_CHANNEL_DMA:
190                         ret = nv17_fence_create(drm);
191                         break;
192                 case NV50_CHANNEL_GPFIFO:
193                         ret = nv50_fence_create(drm);
194                         break;
195                 case G82_CHANNEL_GPFIFO:
196                         ret = nv84_fence_create(drm);
197                         break;
198                 case FERMI_CHANNEL_GPFIFO:
199                 case KEPLER_CHANNEL_GPFIFO_A:
200                 case KEPLER_CHANNEL_GPFIFO_B:
201                 case MAXWELL_CHANNEL_GPFIFO_A:
202                 case PASCAL_CHANNEL_GPFIFO_A:
203                         ret = nvc0_fence_create(drm);
204                         break;
205                 default:
206                         break;
207                 }
208         }
209 
210         nvif_object_sclass_put(&sclass);
211         if (ret) {
212                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
213                 nouveau_accel_fini(drm);
214                 return;
215         }
216 
217         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
218                 ret = nouveau_channel_new(drm, &drm->device,
219                                           NVA06F_V0_ENGINE_CE0 |
220                                           NVA06F_V0_ENGINE_CE1,
221                                           0, &drm->cechan);
222                 if (ret)
223                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
224 
225                 arg0 = NVA06F_V0_ENGINE_GR;
226                 arg1 = 1;
227         } else
228         if (device->info.chipset >= 0xa3 &&
229             device->info.chipset != 0xaa &&
230             device->info.chipset != 0xac) {
231                 ret = nouveau_channel_new(drm, &drm->device,
232                                           NvDmaFB, NvDmaTT, &drm->cechan);
233                 if (ret)
234                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
235 
236                 arg0 = NvDmaFB;
237                 arg1 = NvDmaTT;
238         } else {
239                 arg0 = NvDmaFB;
240                 arg1 = NvDmaTT;
241         }
242 
243         ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel);
244         if (ret) {
245                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
246                 nouveau_accel_fini(drm);
247                 return;
248         }
249 
250         ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
251                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
252         if (ret == 0) {
253                 ret = RING_SPACE(drm->channel, 2);
254                 if (ret == 0) {
255                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
256                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
257                                 OUT_RING  (drm->channel, NVDRM_NVSW);
258                         } else
259                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
260                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
261                                 OUT_RING  (drm->channel, 0x001f0000);
262                         }
263                 }
264 
265                 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
266                                        false, NV04_NVSW_NTFY_UEVENT,
267                                        NULL, 0, 0, &drm->flip);
268                 if (ret == 0)
269                         ret = nvif_notify_get(&drm->flip);
270                 if (ret) {
271                         nouveau_accel_fini(drm);
272                         return;
273                 }
274         }
275 
276         if (ret) {
277                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
278                 nouveau_accel_fini(drm);
279                 return;
280         }
281 
282         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
283                 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
284                                       NULL, &drm->notify);
285                 if (ret) {
286                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
287                         nouveau_accel_fini(drm);
288                         return;
289                 }
290 
291                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
292                                        NV_DMA_IN_MEMORY,
293                                        &(struct nv_dma_v0) {
294                                                 .target = NV_DMA_V0_TARGET_VRAM,
295                                                 .access = NV_DMA_V0_ACCESS_RDWR,
296                                                 .start = drm->notify->addr,
297                                                 .limit = drm->notify->addr + 31
298                                        }, sizeof(struct nv_dma_v0),
299                                        &drm->ntfy);
300                 if (ret) {
301                         nouveau_accel_fini(drm);
302                         return;
303                 }
304         }
305 
306 
307         nouveau_bo_move_init(drm);
308 }
309 
310 static int nouveau_drm_probe(struct pci_dev *pdev,
311                              const struct pci_device_id *pent)
312 {
313         struct nvkm_device *device;
314         struct apertures_struct *aper;
315         bool boot = false;
316         int ret;
317 
318         if (vga_switcheroo_client_probe_defer(pdev))
319                 return -EPROBE_DEFER;
320 
321         /* We need to check that the chipset is supported before booting
322          * fbdev off the hardware, as there's no way to put it back.
323          */
324         ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
325         if (ret)
326                 return ret;
327 
328         nvkm_device_del(&device);
329 
330         /* Remove conflicting drivers (vesafb, efifb etc). */
331         aper = alloc_apertures(3);
332         if (!aper)
333                 return -ENOMEM;
334 
335         aper->ranges[0].base = pci_resource_start(pdev, 1);
336         aper->ranges[0].size = pci_resource_len(pdev, 1);
337         aper->count = 1;
338 
339         if (pci_resource_len(pdev, 2)) {
340                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
341                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
342                 aper->count++;
343         }
344 
345         if (pci_resource_len(pdev, 3)) {
346                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
347                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
348                 aper->count++;
349         }
350 
351 #ifdef CONFIG_X86
352         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
353 #endif
354         if (nouveau_modeset != 2)
355                 drm_fb_helper_remove_conflicting_framebuffers(aper, "nouveaufb", boot);
356         kfree(aper);
357 
358         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
359                                   true, true, ~0ULL, &device);
360         if (ret)
361                 return ret;
362 
363         pci_set_master(pdev);
364 
365         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
366         if (ret) {
367                 nvkm_device_del(&device);
368                 return ret;
369         }
370 
371         return 0;
372 }
373 
374 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
375 
376 static void
377 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
378 {
379         struct pci_dev *pdev = drm->dev->pdev;
380 
381         if (!pdev) {
382                 NV_DEBUG(drm, "not a PCI device; no HDMI\n");
383                 drm->hdmi_device = NULL;
384                 return;
385         }
386 
387         /* subfunction one is a hdmi audio device? */
388         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
389                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
390 
391         if (!drm->hdmi_device) {
392                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
393                 return;
394         }
395 
396         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
397                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
398                 pci_dev_put(drm->hdmi_device);
399                 drm->hdmi_device = NULL;
400                 return;
401         }
402 }
403 
404 static int
405 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
406 {
407         struct nouveau_drm *drm;
408         int ret;
409 
410         ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
411         if (ret)
412                 return ret;
413 
414         dev->dev_private = drm;
415         drm->dev = dev;
416         nvxx_client(&drm->client.base)->debug =
417                 nvkm_dbgopt(nouveau_debug, "DRM");
418 
419         INIT_LIST_HEAD(&drm->clients);
420         spin_lock_init(&drm->tile.lock);
421 
422         nouveau_get_hdmi_dev(drm);
423 
424         ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE,
425                                &(struct nv_device_v0) {
426                                         .device = ~0,
427                                }, sizeof(struct nv_device_v0),
428                                &drm->device);
429         if (ret)
430                 goto fail_device;
431 
432         dev->irq_enabled = true;
433 
434         /* workaround an odd issue on nvc1 by disabling the device's
435          * nosnoop capability.  hopefully won't cause issues until a
436          * better fix is found - assuming there is one...
437          */
438         if (drm->device.info.chipset == 0xc1)
439                 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
440 
441         nouveau_vga_init(drm);
442 
443         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
444                 if (!nvxx_device(&drm->device)->mmu) {
445                         ret = -ENOSYS;
446                         goto fail_device;
447                 }
448 
449                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
450                                   0x1000, NULL, &drm->client.vm);
451                 if (ret)
452                         goto fail_device;
453 
454                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
455         }
456 
457         ret = nouveau_ttm_init(drm);
458         if (ret)
459                 goto fail_ttm;
460 
461         ret = nouveau_bios_init(dev);
462         if (ret)
463                 goto fail_bios;
464 
465         ret = nouveau_display_create(dev);
466         if (ret)
467                 goto fail_dispctor;
468 
469         if (dev->mode_config.num_crtc) {
470                 ret = nouveau_display_init(dev);
471                 if (ret)
472                         goto fail_dispinit;
473         }
474 
475         nouveau_debugfs_init(drm);
476         nouveau_hwmon_init(dev);
477         nouveau_accel_init(drm);
478         nouveau_fbcon_init(dev);
479         nouveau_led_init(dev);
480 
481         if (nouveau_runtime_pm != 0) {
482                 pm_runtime_use_autosuspend(dev->dev);
483                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
484                 pm_runtime_set_active(dev->dev);
485                 pm_runtime_allow(dev->dev);
486                 pm_runtime_mark_last_busy(dev->dev);
487                 pm_runtime_put(dev->dev);
488         }
489         return 0;
490 
491 fail_dispinit:
492         nouveau_display_destroy(dev);
493 fail_dispctor:
494         nouveau_bios_takedown(dev);
495 fail_bios:
496         nouveau_ttm_fini(drm);
497 fail_ttm:
498         nouveau_vga_fini(drm);
499 fail_device:
500         nvif_device_fini(&drm->device);
501         nouveau_cli_destroy(&drm->client);
502         return ret;
503 }
504 
505 static int
506 nouveau_drm_unload(struct drm_device *dev)
507 {
508         struct nouveau_drm *drm = nouveau_drm(dev);
509 
510         if (nouveau_runtime_pm != 0) {
511                 pm_runtime_get_sync(dev->dev);
512                 pm_runtime_forbid(dev->dev);
513         }
514 
515         nouveau_led_fini(dev);
516         nouveau_fbcon_fini(dev);
517         nouveau_accel_fini(drm);
518         nouveau_hwmon_fini(dev);
519         nouveau_debugfs_fini(drm);
520 
521         if (dev->mode_config.num_crtc)
522                 nouveau_display_fini(dev, false);
523         nouveau_display_destroy(dev);
524 
525         nouveau_bios_takedown(dev);
526 
527         nouveau_ttm_fini(drm);
528         nouveau_vga_fini(drm);
529 
530         nvif_device_fini(&drm->device);
531         if (drm->hdmi_device)
532                 pci_dev_put(drm->hdmi_device);
533         nouveau_cli_destroy(&drm->client);
534         return 0;
535 }
536 
537 void
538 nouveau_drm_device_remove(struct drm_device *dev)
539 {
540         struct nouveau_drm *drm = nouveau_drm(dev);
541         struct nvkm_client *client;
542         struct nvkm_device *device;
543 
544         dev->irq_enabled = false;
545         client = nvxx_client(&drm->client.base);
546         device = nvkm_device_find(client->device);
547         drm_put_dev(dev);
548 
549         nvkm_device_del(&device);
550 }
551 
552 static void
553 nouveau_drm_remove(struct pci_dev *pdev)
554 {
555         struct drm_device *dev = pci_get_drvdata(pdev);
556 
557         nouveau_drm_device_remove(dev);
558 }
559 
560 static int
561 nouveau_do_suspend(struct drm_device *dev, bool runtime)
562 {
563         struct nouveau_drm *drm = nouveau_drm(dev);
564         struct nouveau_cli *cli;
565         int ret;
566 
567         nouveau_led_suspend(dev);
568 
569         if (dev->mode_config.num_crtc) {
570                 NV_INFO(drm, "suspending console...\n");
571                 nouveau_fbcon_set_suspend(dev, 1);
572                 NV_INFO(drm, "suspending display...\n");
573                 ret = nouveau_display_suspend(dev, runtime);
574                 if (ret)
575                         return ret;
576         }
577 
578         NV_INFO(drm, "evicting buffers...\n");
579         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
580 
581         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
582         if (drm->cechan) {
583                 ret = nouveau_channel_idle(drm->cechan);
584                 if (ret)
585                         goto fail_display;
586         }
587 
588         if (drm->channel) {
589                 ret = nouveau_channel_idle(drm->channel);
590                 if (ret)
591                         goto fail_display;
592         }
593 
594         NV_INFO(drm, "suspending client object trees...\n");
595         if (drm->fence && nouveau_fence(drm)->suspend) {
596                 if (!nouveau_fence(drm)->suspend(drm)) {
597                         ret = -ENOMEM;
598                         goto fail_display;
599                 }
600         }
601 
602         list_for_each_entry(cli, &drm->clients, head) {
603                 ret = nvif_client_suspend(&cli->base);
604                 if (ret)
605                         goto fail_client;
606         }
607 
608         NV_INFO(drm, "suspending kernel object tree...\n");
609         ret = nvif_client_suspend(&drm->client.base);
610         if (ret)
611                 goto fail_client;
612 
613         return 0;
614 
615 fail_client:
616         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
617                 nvif_client_resume(&cli->base);
618         }
619 
620         if (drm->fence && nouveau_fence(drm)->resume)
621                 nouveau_fence(drm)->resume(drm);
622 
623 fail_display:
624         if (dev->mode_config.num_crtc) {
625                 NV_INFO(drm, "resuming display...\n");
626                 nouveau_display_resume(dev, runtime);
627         }
628         return ret;
629 }
630 
631 static int
632 nouveau_do_resume(struct drm_device *dev, bool runtime)
633 {
634         struct nouveau_drm *drm = nouveau_drm(dev);
635         struct nouveau_cli *cli;
636 
637         NV_INFO(drm, "resuming kernel object tree...\n");
638         nvif_client_resume(&drm->client.base);
639 
640         NV_INFO(drm, "resuming client object trees...\n");
641         if (drm->fence && nouveau_fence(drm)->resume)
642                 nouveau_fence(drm)->resume(drm);
643 
644         list_for_each_entry(cli, &drm->clients, head) {
645                 nvif_client_resume(&cli->base);
646         }
647 
648         nouveau_run_vbios_init(dev);
649 
650         if (dev->mode_config.num_crtc) {
651                 NV_INFO(drm, "resuming display...\n");
652                 nouveau_display_resume(dev, runtime);
653                 NV_INFO(drm, "resuming console...\n");
654                 nouveau_fbcon_set_suspend(dev, 0);
655         }
656 
657         nouveau_led_resume(dev);
658 
659         return 0;
660 }
661 
662 int
663 nouveau_pmops_suspend(struct device *dev)
664 {
665         struct pci_dev *pdev = to_pci_dev(dev);
666         struct drm_device *drm_dev = pci_get_drvdata(pdev);
667         int ret;
668 
669         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
670             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
671                 return 0;
672 
673         ret = nouveau_do_suspend(drm_dev, false);
674         if (ret)
675                 return ret;
676 
677         pci_save_state(pdev);
678         pci_disable_device(pdev);
679         pci_set_power_state(pdev, PCI_D3hot);
680         udelay(200);
681         return 0;
682 }
683 
684 int
685 nouveau_pmops_resume(struct device *dev)
686 {
687         struct pci_dev *pdev = to_pci_dev(dev);
688         struct drm_device *drm_dev = pci_get_drvdata(pdev);
689         int ret;
690 
691         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
692             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
693                 return 0;
694 
695         pci_set_power_state(pdev, PCI_D0);
696         pci_restore_state(pdev);
697         ret = pci_enable_device(pdev);
698         if (ret)
699                 return ret;
700         pci_set_master(pdev);
701 
702         ret = nouveau_do_resume(drm_dev, false);
703 
704         /* Monitors may have been connected / disconnected during suspend */
705         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
706 
707         return ret;
708 }
709 
710 static int
711 nouveau_pmops_freeze(struct device *dev)
712 {
713         struct pci_dev *pdev = to_pci_dev(dev);
714         struct drm_device *drm_dev = pci_get_drvdata(pdev);
715         return nouveau_do_suspend(drm_dev, false);
716 }
717 
718 static int
719 nouveau_pmops_thaw(struct device *dev)
720 {
721         struct pci_dev *pdev = to_pci_dev(dev);
722         struct drm_device *drm_dev = pci_get_drvdata(pdev);
723         return nouveau_do_resume(drm_dev, false);
724 }
725 
726 static int
727 nouveau_pmops_runtime_suspend(struct device *dev)
728 {
729         struct pci_dev *pdev = to_pci_dev(dev);
730         struct drm_device *drm_dev = pci_get_drvdata(pdev);
731         int ret;
732 
733         if (nouveau_runtime_pm == 0) {
734                 pm_runtime_forbid(dev);
735                 return -EBUSY;
736         }
737 
738         /* are we optimus enabled? */
739         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
740                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
741                 pm_runtime_forbid(dev);
742                 return -EBUSY;
743         }
744 
745         drm_kms_helper_poll_disable(drm_dev);
746         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
747         nouveau_switcheroo_optimus_dsm();
748         ret = nouveau_do_suspend(drm_dev, true);
749         pci_save_state(pdev);
750         pci_disable_device(pdev);
751         pci_ignore_hotplug(pdev);
752         pci_set_power_state(pdev, PCI_D3cold);
753         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
754         return ret;
755 }
756 
757 static int
758 nouveau_pmops_runtime_resume(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 nvif_device *device = &nouveau_drm(drm_dev)->device;
763         int ret;
764 
765         if (nouveau_runtime_pm == 0)
766                 return -EINVAL;
767 
768         pci_set_power_state(pdev, PCI_D0);
769         pci_restore_state(pdev);
770         ret = pci_enable_device(pdev);
771         if (ret)
772                 return ret;
773         pci_set_master(pdev);
774 
775         ret = nouveau_do_resume(drm_dev, true);
776 
777         if (!drm_dev->mode_config.poll_enabled)
778                 drm_kms_helper_poll_enable(drm_dev);
779 
780         /* do magic */
781         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
782         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
783         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
784 
785         /* Monitors may have been connected / disconnected during suspend */
786         schedule_work(&nouveau_drm(drm_dev)->hpd_work);
787 
788         return ret;
789 }
790 
791 static int
792 nouveau_pmops_runtime_idle(struct device *dev)
793 {
794         struct pci_dev *pdev = to_pci_dev(dev);
795         struct drm_device *drm_dev = pci_get_drvdata(pdev);
796         struct nouveau_drm *drm = nouveau_drm(drm_dev);
797         struct drm_crtc *crtc;
798 
799         if (nouveau_runtime_pm == 0) {
800                 pm_runtime_forbid(dev);
801                 return -EBUSY;
802         }
803 
804         /* are we optimus enabled? */
805         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
806                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
807                 pm_runtime_forbid(dev);
808                 return -EBUSY;
809         }
810 
811         /* if we have a hdmi audio device - make sure it has a driver loaded */
812         if (drm->hdmi_device) {
813                 if (!drm->hdmi_device->driver) {
814                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
815                         pm_runtime_mark_last_busy(dev);
816                         return -EBUSY;
817                 }
818         }
819 
820         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
821                 if (crtc->enabled) {
822                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
823                         return -EBUSY;
824                 }
825         }
826         pm_runtime_mark_last_busy(dev);
827         pm_runtime_autosuspend(dev);
828         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
829         return 1;
830 }
831 
832 static int
833 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
834 {
835         struct nouveau_drm *drm = nouveau_drm(dev);
836         struct nouveau_cli *cli;
837         char name[32], tmpname[TASK_COMM_LEN];
838         int ret;
839 
840         /* need to bring up power immediately if opening device */
841         ret = pm_runtime_get_sync(dev->dev);
842         if (ret < 0 && ret != -EACCES)
843                 return ret;
844 
845         get_task_comm(tmpname, current);
846         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
847 
848         ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
849 
850         if (ret)
851                 goto out_suspend;
852 
853         cli->base.super = false;
854 
855         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
856                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
857                                   0x1000, NULL, &cli->vm);
858                 if (ret) {
859                         nouveau_cli_destroy(cli);
860                         goto out_suspend;
861                 }
862 
863                 nvxx_client(&cli->base)->vm = cli->vm;
864         }
865 
866         fpriv->driver_priv = cli;
867 
868         mutex_lock(&drm->client.mutex);
869         list_add(&cli->head, &drm->clients);
870         mutex_unlock(&drm->client.mutex);
871 
872 out_suspend:
873         pm_runtime_mark_last_busy(dev->dev);
874         pm_runtime_put_autosuspend(dev->dev);
875 
876         return ret;
877 }
878 
879 static void
880 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
881 {
882         struct nouveau_cli *cli = nouveau_cli(fpriv);
883         struct nouveau_drm *drm = nouveau_drm(dev);
884 
885         pm_runtime_get_sync(dev->dev);
886 
887         mutex_lock(&cli->mutex);
888         if (cli->abi16)
889                 nouveau_abi16_fini(cli->abi16);
890         mutex_unlock(&cli->mutex);
891 
892         mutex_lock(&drm->client.mutex);
893         list_del(&cli->head);
894         mutex_unlock(&drm->client.mutex);
895 
896 }
897 
898 static void
899 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
900 {
901         struct nouveau_cli *cli = nouveau_cli(fpriv);
902         nouveau_cli_destroy(cli);
903         pm_runtime_mark_last_busy(dev->dev);
904         pm_runtime_put_autosuspend(dev->dev);
905 }
906 
907 static const struct drm_ioctl_desc
908 nouveau_ioctls[] = {
909         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
910         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
911         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
912         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
913         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
914         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
915         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
916         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
917         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
918         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
919         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
920         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
921 };
922 
923 long
924 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
925 {
926         struct drm_file *filp = file->private_data;
927         struct drm_device *dev = filp->minor->dev;
928         long ret;
929 
930         ret = pm_runtime_get_sync(dev->dev);
931         if (ret < 0 && ret != -EACCES)
932                 return ret;
933 
934         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
935         case DRM_NOUVEAU_NVIF:
936                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
937                 break;
938         default:
939                 ret = drm_ioctl(file, cmd, arg);
940                 break;
941         }
942 
943         pm_runtime_mark_last_busy(dev->dev);
944         pm_runtime_put_autosuspend(dev->dev);
945         return ret;
946 }
947 
948 static const struct file_operations
949 nouveau_driver_fops = {
950         .owner = THIS_MODULE,
951         .open = drm_open,
952         .release = drm_release,
953         .unlocked_ioctl = nouveau_drm_ioctl,
954         .mmap = nouveau_ttm_mmap,
955         .poll = drm_poll,
956         .read = drm_read,
957 #if defined(CONFIG_COMPAT)
958         .compat_ioctl = nouveau_compat_ioctl,
959 #endif
960         .llseek = noop_llseek,
961 };
962 
963 static struct drm_driver
964 driver_stub = {
965         .driver_features =
966                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
967                 DRIVER_KMS_LEGACY_CONTEXT,
968 
969         .load = nouveau_drm_load,
970         .unload = nouveau_drm_unload,
971         .open = nouveau_drm_open,
972         .preclose = nouveau_drm_preclose,
973         .postclose = nouveau_drm_postclose,
974         .lastclose = nouveau_vga_lastclose,
975 
976 #if defined(CONFIG_DEBUG_FS)
977         .debugfs_init = nouveau_drm_debugfs_init,
978         .debugfs_cleanup = nouveau_drm_debugfs_cleanup,
979 #endif
980 
981         .get_vblank_counter = drm_vblank_no_hw_counter,
982         .enable_vblank = nouveau_display_vblank_enable,
983         .disable_vblank = nouveau_display_vblank_disable,
984         .get_scanout_position = nouveau_display_scanoutpos,
985         .get_vblank_timestamp = nouveau_display_vblstamp,
986 
987         .ioctls = nouveau_ioctls,
988         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
989         .fops = &nouveau_driver_fops,
990 
991         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
992         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
993         .gem_prime_export = drm_gem_prime_export,
994         .gem_prime_import = drm_gem_prime_import,
995         .gem_prime_pin = nouveau_gem_prime_pin,
996         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
997         .gem_prime_unpin = nouveau_gem_prime_unpin,
998         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
999         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
1000         .gem_prime_vmap = nouveau_gem_prime_vmap,
1001         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
1002 
1003         .gem_free_object_unlocked = nouveau_gem_object_del,
1004         .gem_open_object = nouveau_gem_object_open,
1005         .gem_close_object = nouveau_gem_object_close,
1006 
1007         .dumb_create = nouveau_display_dumb_create,
1008         .dumb_map_offset = nouveau_display_dumb_map_offset,
1009         .dumb_destroy = drm_gem_dumb_destroy,
1010 
1011         .name = DRIVER_NAME,
1012         .desc = DRIVER_DESC,
1013 #ifdef GIT_REVISION
1014         .date = GIT_REVISION,
1015 #else
1016         .date = DRIVER_DATE,
1017 #endif
1018         .major = DRIVER_MAJOR,
1019         .minor = DRIVER_MINOR,
1020         .patchlevel = DRIVER_PATCHLEVEL,
1021 };
1022 
1023 static struct pci_device_id
1024 nouveau_drm_pci_table[] = {
1025         {
1026                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1027                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1028                 .class_mask  = 0xff << 16,
1029         },
1030         {
1031                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1032                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1033                 .class_mask  = 0xff << 16,
1034         },
1035         {}
1036 };
1037 
1038 static void nouveau_display_options(void)
1039 {
1040         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1041 
1042         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1043         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1044         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1045         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1046         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1047         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1048         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1049         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1050         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1051         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1052         DRM_DEBUG_DRIVER("... hdmimhz      : %d\n", nouveau_hdmimhz);
1053 }
1054 
1055 static const struct dev_pm_ops nouveau_pm_ops = {
1056         .suspend = nouveau_pmops_suspend,
1057         .resume = nouveau_pmops_resume,
1058         .freeze = nouveau_pmops_freeze,
1059         .thaw = nouveau_pmops_thaw,
1060         .poweroff = nouveau_pmops_freeze,
1061         .restore = nouveau_pmops_resume,
1062         .runtime_suspend = nouveau_pmops_runtime_suspend,
1063         .runtime_resume = nouveau_pmops_runtime_resume,
1064         .runtime_idle = nouveau_pmops_runtime_idle,
1065 };
1066 
1067 static struct pci_driver
1068 nouveau_drm_pci_driver = {
1069         .name = "nouveau",
1070         .id_table = nouveau_drm_pci_table,
1071         .probe = nouveau_drm_probe,
1072         .remove = nouveau_drm_remove,
1073         .driver.pm = &nouveau_pm_ops,
1074 };
1075 
1076 struct drm_device *
1077 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1078                                struct platform_device *pdev,
1079                                struct nvkm_device **pdevice)
1080 {
1081         struct drm_device *drm;
1082         int err;
1083 
1084         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1085                                     true, true, ~0ULL, pdevice);
1086         if (err)
1087                 goto err_free;
1088 
1089         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1090         if (IS_ERR(drm)) {
1091                 err = PTR_ERR(drm);
1092                 goto err_free;
1093         }
1094 
1095         drm->platformdev = pdev;
1096         platform_set_drvdata(pdev, drm);
1097 
1098         return drm;
1099 
1100 err_free:
1101         nvkm_device_del(pdevice);
1102 
1103         return ERR_PTR(err);
1104 }
1105 
1106 static int __init
1107 nouveau_drm_init(void)
1108 {
1109         driver_pci = driver_stub;
1110         driver_pci.set_busid = drm_pci_set_busid;
1111         driver_platform = driver_stub;
1112 
1113         nouveau_display_options();
1114 
1115         if (nouveau_modeset == -1) {
1116                 if (vgacon_text_force())
1117                         nouveau_modeset = 0;
1118         }
1119 
1120         if (!nouveau_modeset)
1121                 return 0;
1122 
1123 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1124         platform_driver_register(&nouveau_platform_driver);
1125 #endif
1126 
1127         nouveau_register_dsm_handler();
1128         nouveau_backlight_ctor();
1129         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1130 }
1131 
1132 static void __exit
1133 nouveau_drm_exit(void)
1134 {
1135         if (!nouveau_modeset)
1136                 return;
1137 
1138         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1139         nouveau_backlight_dtor();
1140         nouveau_unregister_dsm_handler();
1141 
1142 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1143         platform_driver_unregister(&nouveau_platform_driver);
1144 #endif
1145 }
1146 
1147 module_init(nouveau_drm_init);
1148 module_exit(nouveau_drm_exit);
1149 
1150 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1151 MODULE_AUTHOR(DRIVER_AUTHOR);
1152 MODULE_DESCRIPTION(DRIVER_DESC);
1153 MODULE_LICENSE("GPL and additional rights");
1154 

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