Version:  2.0.40 2.2.26 2.4.37 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17

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/module.h>
 27 #include <linux/pci.h>
 28 #include <linux/pm_runtime.h>
 29 #include <linux/vga_switcheroo.h>
 30 
 31 #include "drmP.h"
 32 #include "drm_crtc_helper.h"
 33 
 34 #include <core/device.h>
 35 #include <core/gpuobj.h>
 36 #include <core/option.h>
 37 
 38 #include "nouveau_drm.h"
 39 #include "nouveau_dma.h"
 40 #include "nouveau_ttm.h"
 41 #include "nouveau_gem.h"
 42 #include "nouveau_agp.h"
 43 #include "nouveau_vga.h"
 44 #include "nouveau_sysfs.h"
 45 #include "nouveau_hwmon.h"
 46 #include "nouveau_acpi.h"
 47 #include "nouveau_bios.h"
 48 #include "nouveau_ioctl.h"
 49 #include "nouveau_abi16.h"
 50 #include "nouveau_fbcon.h"
 51 #include "nouveau_fence.h"
 52 #include "nouveau_debugfs.h"
 53 #include "nouveau_usif.h"
 54 
 55 MODULE_PARM_DESC(config, "option string to pass to driver core");
 56 static char *nouveau_config;
 57 module_param_named(config, nouveau_config, charp, 0400);
 58 
 59 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
 60 static char *nouveau_debug;
 61 module_param_named(debug, nouveau_debug, charp, 0400);
 62 
 63 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
 64 static int nouveau_noaccel = 0;
 65 module_param_named(noaccel, nouveau_noaccel, int, 0400);
 66 
 67 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
 68                           "0 = disabled, 1 = enabled, 2 = headless)");
 69 int nouveau_modeset = -1;
 70 module_param_named(modeset, nouveau_modeset, int, 0400);
 71 
 72 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
 73 int nouveau_runtime_pm = -1;
 74 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
 75 
 76 static struct drm_driver driver;
 77 
 78 static u64
 79 nouveau_pci_name(struct pci_dev *pdev)
 80 {
 81         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
 82         name |= pdev->bus->number << 16;
 83         name |= PCI_SLOT(pdev->devfn) << 8;
 84         return name | PCI_FUNC(pdev->devfn);
 85 }
 86 
 87 static u64
 88 nouveau_platform_name(struct platform_device *platformdev)
 89 {
 90         return platformdev->id;
 91 }
 92 
 93 static u64
 94 nouveau_name(struct drm_device *dev)
 95 {
 96         if (dev->pdev)
 97                 return nouveau_pci_name(dev->pdev);
 98         else
 99                 return nouveau_platform_name(dev->platformdev);
100 }
101 
102 static int
103 nouveau_cli_create(u64 name, const char *sname,
104                    int size, void **pcli)
105 {
106         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
107         if (cli) {
108                 int ret = nvif_client_init(NULL, NULL, sname, name,
109                                            nouveau_config, nouveau_debug,
110                                           &cli->base);
111                 if (ret == 0) {
112                         mutex_init(&cli->mutex);
113                         usif_client_init(cli);
114                 }
115                 return ret;
116         }
117         return -ENOMEM;
118 }
119 
120 static void
121 nouveau_cli_destroy(struct nouveau_cli *cli)
122 {
123         nouveau_vm_ref(NULL, &nvkm_client(&cli->base)->vm, NULL);
124         nvif_client_fini(&cli->base);
125         usif_client_fini(cli);
126 }
127 
128 static void
129 nouveau_accel_fini(struct nouveau_drm *drm)
130 {
131         nouveau_channel_del(&drm->channel);
132         nvif_object_fini(&drm->ntfy);
133         nouveau_gpuobj_ref(NULL, &drm->notify);
134         nvif_object_fini(&drm->nvsw);
135         nouveau_channel_del(&drm->cechan);
136         nvif_object_fini(&drm->ttm.copy);
137         if (drm->fence)
138                 nouveau_fence(drm)->dtor(drm);
139 }
140 
141 static void
142 nouveau_accel_init(struct nouveau_drm *drm)
143 {
144         struct nvif_device *device = &drm->device;
145         u32 arg0, arg1;
146         u32 sclass[16];
147         int ret, i;
148 
149         if (nouveau_noaccel)
150                 return;
151 
152         /* initialise synchronisation routines */
153         /*XXX: this is crap, but the fence/channel stuff is a little
154          *     backwards in some places.  this will be fixed.
155          */
156         ret = nvif_object_sclass(&device->base, sclass, ARRAY_SIZE(sclass));
157         if (ret < 0)
158                 return;
159 
160         for (ret = -ENOSYS, i = 0; ret && i < ARRAY_SIZE(sclass); i++) {
161                 switch (sclass[i]) {
162                 case NV03_CHANNEL_DMA:
163                         ret = nv04_fence_create(drm);
164                         break;
165                 case NV10_CHANNEL_DMA:
166                         ret = nv10_fence_create(drm);
167                         break;
168                 case NV17_CHANNEL_DMA:
169                 case NV40_CHANNEL_DMA:
170                         ret = nv17_fence_create(drm);
171                         break;
172                 case NV50_CHANNEL_GPFIFO:
173                         ret = nv50_fence_create(drm);
174                         break;
175                 case G82_CHANNEL_GPFIFO:
176                         ret = nv84_fence_create(drm);
177                         break;
178                 case FERMI_CHANNEL_GPFIFO:
179                 case KEPLER_CHANNEL_GPFIFO_A:
180                         ret = nvc0_fence_create(drm);
181                         break;
182                 default:
183                         break;
184                 }
185         }
186 
187         if (ret) {
188                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
189                 nouveau_accel_fini(drm);
190                 return;
191         }
192 
193         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
194                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
195                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
196                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
197                                           0, &drm->cechan);
198                 if (ret)
199                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
200 
201                 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
202                 arg1 = 1;
203         } else
204         if (device->info.chipset >= 0xa3 &&
205             device->info.chipset != 0xaa &&
206             device->info.chipset != 0xac) {
207                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
208                                           NvDmaFB, NvDmaTT, &drm->cechan);
209                 if (ret)
210                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
211 
212                 arg0 = NvDmaFB;
213                 arg1 = NvDmaTT;
214         } else {
215                 arg0 = NvDmaFB;
216                 arg1 = NvDmaTT;
217         }
218 
219         ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN, arg0, arg1,
220                                  &drm->channel);
221         if (ret) {
222                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
223                 nouveau_accel_fini(drm);
224                 return;
225         }
226 
227         ret = nvif_object_init(drm->channel->object, NULL, NVDRM_NVSW,
228                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
229         if (ret == 0) {
230                 struct nouveau_software_chan *swch;
231                 ret = RING_SPACE(drm->channel, 2);
232                 if (ret == 0) {
233                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
234                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
235                                 OUT_RING  (drm->channel, NVDRM_NVSW);
236                         } else
237                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
238                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
239                                 OUT_RING  (drm->channel, 0x001f0000);
240                         }
241                 }
242                 swch = (void *)nvkm_object(&drm->nvsw)->parent;
243                 swch->flip = nouveau_flip_complete;
244                 swch->flip_data = drm->channel;
245         }
246 
247         if (ret) {
248                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
249                 nouveau_accel_fini(drm);
250                 return;
251         }
252 
253         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
254                 ret = nouveau_gpuobj_new(nvkm_object(&drm->device), NULL, 32,
255                                          0, 0, &drm->notify);
256                 if (ret) {
257                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
258                         nouveau_accel_fini(drm);
259                         return;
260                 }
261 
262                 ret = nvif_object_init(drm->channel->object, NULL, NvNotify0,
263                                        NV_DMA_IN_MEMORY,
264                                        &(struct nv_dma_v0) {
265                                                 .target = NV_DMA_V0_TARGET_VRAM,
266                                                 .access = NV_DMA_V0_ACCESS_RDWR,
267                                                 .start = drm->notify->addr,
268                                                 .limit = drm->notify->addr + 31
269                                        }, sizeof(struct nv_dma_v0),
270                                        &drm->ntfy);
271                 if (ret) {
272                         nouveau_accel_fini(drm);
273                         return;
274                 }
275         }
276 
277 
278         nouveau_bo_move_init(drm);
279 }
280 
281 static int nouveau_drm_probe(struct pci_dev *pdev,
282                              const struct pci_device_id *pent)
283 {
284         struct nouveau_device *device;
285         struct apertures_struct *aper;
286         bool boot = false;
287         int ret;
288 
289         /* remove conflicting drivers (vesafb, efifb etc) */
290         aper = alloc_apertures(3);
291         if (!aper)
292                 return -ENOMEM;
293 
294         aper->ranges[0].base = pci_resource_start(pdev, 1);
295         aper->ranges[0].size = pci_resource_len(pdev, 1);
296         aper->count = 1;
297 
298         if (pci_resource_len(pdev, 2)) {
299                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
300                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
301                 aper->count++;
302         }
303 
304         if (pci_resource_len(pdev, 3)) {
305                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
306                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
307                 aper->count++;
308         }
309 
310 #ifdef CONFIG_X86
311         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
312 #endif
313         if (nouveau_modeset != 2)
314                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
315         kfree(aper);
316 
317         ret = nouveau_device_create(pdev, NOUVEAU_BUS_PCI,
318                                     nouveau_pci_name(pdev), pci_name(pdev),
319                                     nouveau_config, nouveau_debug, &device);
320         if (ret)
321                 return ret;
322 
323         pci_set_master(pdev);
324 
325         ret = drm_get_pci_dev(pdev, pent, &driver);
326         if (ret) {
327                 nouveau_object_ref(NULL, (struct nouveau_object **)&device);
328                 return ret;
329         }
330 
331         return 0;
332 }
333 
334 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
335 
336 static void
337 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
338 {
339         struct pci_dev *pdev = drm->dev->pdev;
340 
341         if (!pdev) {
342                 DRM_INFO("not a PCI device; no HDMI\n");
343                 drm->hdmi_device = NULL;
344                 return;
345         }
346 
347         /* subfunction one is a hdmi audio device? */
348         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
349                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
350 
351         if (!drm->hdmi_device) {
352                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
353                 return;
354         }
355 
356         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
357                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
358                 pci_dev_put(drm->hdmi_device);
359                 drm->hdmi_device = NULL;
360                 return;
361         }
362 }
363 
364 static int
365 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
366 {
367         struct pci_dev *pdev = dev->pdev;
368         struct nouveau_drm *drm;
369         int ret;
370 
371         ret = nouveau_cli_create(nouveau_name(dev), "DRM", sizeof(*drm),
372                                  (void **)&drm);
373         if (ret)
374                 return ret;
375 
376         dev->dev_private = drm;
377         drm->dev = dev;
378         nvkm_client(&drm->client.base)->debug =
379                 nouveau_dbgopt(nouveau_debug, "DRM");
380 
381         INIT_LIST_HEAD(&drm->clients);
382         spin_lock_init(&drm->tile.lock);
383 
384         nouveau_get_hdmi_dev(drm);
385 
386         /* make sure AGP controller is in a consistent state before we
387          * (possibly) execute vbios init tables (see nouveau_agp.h)
388          */
389         if (pdev && drm_pci_device_is_agp(dev) && dev->agp) {
390                 const u64 enables = NV_DEVICE_V0_DISABLE_IDENTIFY |
391                                     NV_DEVICE_V0_DISABLE_MMIO;
392                 /* dummy device object, doesn't init anything, but allows
393                  * agp code access to registers
394                  */
395                 ret = nvif_device_init(&drm->client.base.base, NULL,
396                                        NVDRM_DEVICE, NV_DEVICE,
397                                        &(struct nv_device_v0) {
398                                                 .device = ~0,
399                                                 .disable = ~enables,
400                                                 .debug0 = ~0,
401                                        }, sizeof(struct nv_device_v0),
402                                        &drm->device);
403                 if (ret)
404                         goto fail_device;
405 
406                 nouveau_agp_reset(drm);
407                 nvif_device_fini(&drm->device);
408         }
409 
410         ret = nvif_device_init(&drm->client.base.base, NULL, NVDRM_DEVICE,
411                                NV_DEVICE,
412                                &(struct nv_device_v0) {
413                                         .device = ~0,
414                                         .disable = 0,
415                                         .debug0 = 0,
416                                }, sizeof(struct nv_device_v0),
417                                &drm->device);
418         if (ret)
419                 goto fail_device;
420 
421         dev->irq_enabled = true;
422 
423         /* workaround an odd issue on nvc1 by disabling the device's
424          * nosnoop capability.  hopefully won't cause issues until a
425          * better fix is found - assuming there is one...
426          */
427         if (drm->device.info.chipset == 0xc1)
428                 nvif_mask(&drm->device, 0x00088080, 0x00000800, 0x00000000);
429 
430         nouveau_vga_init(drm);
431         nouveau_agp_init(drm);
432 
433         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
434                 ret = nouveau_vm_new(nvkm_device(&drm->device), 0, (1ULL << 40),
435                                      0x1000, &drm->client.vm);
436                 if (ret)
437                         goto fail_device;
438 
439                 nvkm_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_agp_fini(drm);
483         nouveau_vga_fini(drm);
484 fail_device:
485         nvif_device_fini(&drm->device);
486         nouveau_cli_destroy(&drm->client);
487         return ret;
488 }
489 
490 static int
491 nouveau_drm_unload(struct drm_device *dev)
492 {
493         struct nouveau_drm *drm = nouveau_drm(dev);
494 
495         pm_runtime_get_sync(dev->dev);
496         nouveau_fbcon_fini(dev);
497         nouveau_accel_fini(drm);
498         nouveau_hwmon_fini(dev);
499         nouveau_sysfs_fini(dev);
500 
501         if (dev->mode_config.num_crtc)
502                 nouveau_display_fini(dev);
503         nouveau_display_destroy(dev);
504 
505         nouveau_bios_takedown(dev);
506 
507         nouveau_ttm_fini(drm);
508         nouveau_agp_fini(drm);
509         nouveau_vga_fini(drm);
510 
511         nvif_device_fini(&drm->device);
512         if (drm->hdmi_device)
513                 pci_dev_put(drm->hdmi_device);
514         nouveau_cli_destroy(&drm->client);
515         return 0;
516 }
517 
518 void
519 nouveau_drm_device_remove(struct drm_device *dev)
520 {
521         struct nouveau_drm *drm = nouveau_drm(dev);
522         struct nouveau_client *client;
523         struct nouveau_object *device;
524 
525         dev->irq_enabled = false;
526         client = nvkm_client(&drm->client.base);
527         device = client->device;
528         drm_put_dev(dev);
529 
530         nouveau_object_ref(NULL, &device);
531         nouveau_object_debug();
532 }
533 EXPORT_SYMBOL(nouveau_drm_device_remove);
534 
535 static void
536 nouveau_drm_remove(struct pci_dev *pdev)
537 {
538         struct drm_device *dev = pci_get_drvdata(pdev);
539 
540         nouveau_drm_device_remove(dev);
541 }
542 
543 static int
544 nouveau_do_suspend(struct drm_device *dev, bool runtime)
545 {
546         struct nouveau_drm *drm = nouveau_drm(dev);
547         struct nouveau_cli *cli;
548         int ret;
549 
550         if (dev->mode_config.num_crtc) {
551                 NV_INFO(drm, "suspending console...\n");
552                 nouveau_fbcon_set_suspend(dev, 1);
553                 NV_INFO(drm, "suspending display...\n");
554                 ret = nouveau_display_suspend(dev, runtime);
555                 if (ret)
556                         return ret;
557         }
558 
559         NV_INFO(drm, "evicting buffers...\n");
560         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
561 
562         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
563         if (drm->cechan) {
564                 ret = nouveau_channel_idle(drm->cechan);
565                 if (ret)
566                         goto fail_display;
567         }
568 
569         if (drm->channel) {
570                 ret = nouveau_channel_idle(drm->channel);
571                 if (ret)
572                         goto fail_display;
573         }
574 
575         NV_INFO(drm, "suspending client object trees...\n");
576         if (drm->fence && nouveau_fence(drm)->suspend) {
577                 if (!nouveau_fence(drm)->suspend(drm)) {
578                         ret = -ENOMEM;
579                         goto fail_display;
580                 }
581         }
582 
583         list_for_each_entry(cli, &drm->clients, head) {
584                 ret = nvif_client_suspend(&cli->base);
585                 if (ret)
586                         goto fail_client;
587         }
588 
589         NV_INFO(drm, "suspending kernel object tree...\n");
590         ret = nvif_client_suspend(&drm->client.base);
591         if (ret)
592                 goto fail_client;
593 
594         nouveau_agp_fini(drm);
595         return 0;
596 
597 fail_client:
598         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
599                 nvif_client_resume(&cli->base);
600         }
601 
602         if (drm->fence && nouveau_fence(drm)->resume)
603                 nouveau_fence(drm)->resume(drm);
604 
605 fail_display:
606         if (dev->mode_config.num_crtc) {
607                 NV_INFO(drm, "resuming display...\n");
608                 nouveau_display_resume(dev, runtime);
609         }
610         return ret;
611 }
612 
613 int nouveau_pmops_suspend(struct device *dev)
614 {
615         struct pci_dev *pdev = to_pci_dev(dev);
616         struct drm_device *drm_dev = pci_get_drvdata(pdev);
617         int ret;
618 
619         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
620             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
621                 return 0;
622 
623         ret = nouveau_do_suspend(drm_dev, false);
624         if (ret)
625                 return ret;
626 
627         pci_save_state(pdev);
628         pci_disable_device(pdev);
629         pci_ignore_hotplug(pdev);
630         pci_set_power_state(pdev, PCI_D3hot);
631         return 0;
632 }
633 
634 static int
635 nouveau_do_resume(struct drm_device *dev, bool runtime)
636 {
637         struct nouveau_drm *drm = nouveau_drm(dev);
638         struct nouveau_cli *cli;
639 
640         NV_INFO(drm, "re-enabling device...\n");
641 
642         nouveau_agp_reset(drm);
643 
644         NV_INFO(drm, "resuming kernel object tree...\n");
645         nvif_client_resume(&drm->client.base);
646         nouveau_agp_init(drm);
647 
648         NV_INFO(drm, "resuming client object trees...\n");
649         if (drm->fence && nouveau_fence(drm)->resume)
650                 nouveau_fence(drm)->resume(drm);
651 
652         list_for_each_entry(cli, &drm->clients, head) {
653                 nvif_client_resume(&cli->base);
654         }
655 
656         nouveau_run_vbios_init(dev);
657 
658         if (dev->mode_config.num_crtc) {
659                 NV_INFO(drm, "resuming display...\n");
660                 nouveau_display_resume(dev, runtime);
661                 NV_INFO(drm, "resuming console...\n");
662                 nouveau_fbcon_set_suspend(dev, 0);
663         }
664 
665         return 0;
666 }
667 
668 int nouveau_pmops_resume(struct device *dev)
669 {
670         struct pci_dev *pdev = to_pci_dev(dev);
671         struct drm_device *drm_dev = pci_get_drvdata(pdev);
672         int ret;
673 
674         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
675             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
676                 return 0;
677 
678         pci_set_power_state(pdev, PCI_D0);
679         pci_restore_state(pdev);
680         ret = pci_enable_device(pdev);
681         if (ret)
682                 return ret;
683         pci_set_master(pdev);
684 
685         return nouveau_do_resume(drm_dev, false);
686 }
687 
688 static int nouveau_pmops_freeze(struct device *dev)
689 {
690         struct pci_dev *pdev = to_pci_dev(dev);
691         struct drm_device *drm_dev = pci_get_drvdata(pdev);
692         return nouveau_do_suspend(drm_dev, false);
693 }
694 
695 static int nouveau_pmops_thaw(struct device *dev)
696 {
697         struct pci_dev *pdev = to_pci_dev(dev);
698         struct drm_device *drm_dev = pci_get_drvdata(pdev);
699         return nouveau_do_resume(drm_dev, false);
700 }
701 
702 
703 static int
704 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
705 {
706         struct nouveau_drm *drm = nouveau_drm(dev);
707         struct nouveau_cli *cli;
708         char name[32], tmpname[TASK_COMM_LEN];
709         int ret;
710 
711         /* need to bring up power immediately if opening device */
712         ret = pm_runtime_get_sync(dev->dev);
713         if (ret < 0 && ret != -EACCES)
714                 return ret;
715 
716         get_task_comm(tmpname, current);
717         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
718 
719         ret = nouveau_cli_create(nouveau_name(dev), name, sizeof(*cli),
720                         (void **)&cli);
721 
722         if (ret)
723                 goto out_suspend;
724 
725         cli->base.super = false;
726 
727         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
728                 ret = nouveau_vm_new(nvkm_device(&drm->device), 0, (1ULL << 40),
729                                      0x1000, &cli->vm);
730                 if (ret) {
731                         nouveau_cli_destroy(cli);
732                         goto out_suspend;
733                 }
734 
735                 nvkm_client(&cli->base)->vm = cli->vm;
736         }
737 
738         fpriv->driver_priv = cli;
739 
740         mutex_lock(&drm->client.mutex);
741         list_add(&cli->head, &drm->clients);
742         mutex_unlock(&drm->client.mutex);
743 
744 out_suspend:
745         pm_runtime_mark_last_busy(dev->dev);
746         pm_runtime_put_autosuspend(dev->dev);
747 
748         return ret;
749 }
750 
751 static void
752 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
753 {
754         struct nouveau_cli *cli = nouveau_cli(fpriv);
755         struct nouveau_drm *drm = nouveau_drm(dev);
756 
757         pm_runtime_get_sync(dev->dev);
758 
759         if (cli->abi16)
760                 nouveau_abi16_fini(cli->abi16);
761 
762         mutex_lock(&drm->client.mutex);
763         list_del(&cli->head);
764         mutex_unlock(&drm->client.mutex);
765 
766 }
767 
768 static void
769 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
770 {
771         struct nouveau_cli *cli = nouveau_cli(fpriv);
772         nouveau_cli_destroy(cli);
773         pm_runtime_mark_last_busy(dev->dev);
774         pm_runtime_put_autosuspend(dev->dev);
775 }
776 
777 static const struct drm_ioctl_desc
778 nouveau_ioctls[] = {
779         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
780         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
781         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
782         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
783         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
784         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
785         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
786         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
787         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
788         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
789         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
790         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
791 };
792 
793 long
794 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
795 {
796         struct drm_file *filp = file->private_data;
797         struct drm_device *dev = filp->minor->dev;
798         long ret;
799 
800         ret = pm_runtime_get_sync(dev->dev);
801         if (ret < 0 && ret != -EACCES)
802                 return ret;
803 
804         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
805         case DRM_NOUVEAU_NVIF:
806                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
807                 break;
808         default:
809                 ret = drm_ioctl(file, cmd, arg);
810                 break;
811         }
812 
813         pm_runtime_mark_last_busy(dev->dev);
814         pm_runtime_put_autosuspend(dev->dev);
815         return ret;
816 }
817 
818 static const struct file_operations
819 nouveau_driver_fops = {
820         .owner = THIS_MODULE,
821         .open = drm_open,
822         .release = drm_release,
823         .unlocked_ioctl = nouveau_drm_ioctl,
824         .mmap = nouveau_ttm_mmap,
825         .poll = drm_poll,
826         .read = drm_read,
827 #if defined(CONFIG_COMPAT)
828         .compat_ioctl = nouveau_compat_ioctl,
829 #endif
830         .llseek = noop_llseek,
831 };
832 
833 static struct drm_driver
834 driver = {
835         .driver_features =
836                 DRIVER_USE_AGP |
837                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
838 
839         .load = nouveau_drm_load,
840         .unload = nouveau_drm_unload,
841         .open = nouveau_drm_open,
842         .preclose = nouveau_drm_preclose,
843         .postclose = nouveau_drm_postclose,
844         .lastclose = nouveau_vga_lastclose,
845 
846 #if defined(CONFIG_DEBUG_FS)
847         .debugfs_init = nouveau_debugfs_init,
848         .debugfs_cleanup = nouveau_debugfs_takedown,
849 #endif
850 
851         .get_vblank_counter = drm_vblank_count,
852         .enable_vblank = nouveau_display_vblank_enable,
853         .disable_vblank = nouveau_display_vblank_disable,
854         .get_scanout_position = nouveau_display_scanoutpos,
855         .get_vblank_timestamp = nouveau_display_vblstamp,
856 
857         .ioctls = nouveau_ioctls,
858         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
859         .fops = &nouveau_driver_fops,
860 
861         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
862         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
863         .gem_prime_export = drm_gem_prime_export,
864         .gem_prime_import = drm_gem_prime_import,
865         .gem_prime_pin = nouveau_gem_prime_pin,
866         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
867         .gem_prime_unpin = nouveau_gem_prime_unpin,
868         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
869         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
870         .gem_prime_vmap = nouveau_gem_prime_vmap,
871         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
872 
873         .gem_free_object = nouveau_gem_object_del,
874         .gem_open_object = nouveau_gem_object_open,
875         .gem_close_object = nouveau_gem_object_close,
876 
877         .dumb_create = nouveau_display_dumb_create,
878         .dumb_map_offset = nouveau_display_dumb_map_offset,
879         .dumb_destroy = drm_gem_dumb_destroy,
880 
881         .name = DRIVER_NAME,
882         .desc = DRIVER_DESC,
883 #ifdef GIT_REVISION
884         .date = GIT_REVISION,
885 #else
886         .date = DRIVER_DATE,
887 #endif
888         .major = DRIVER_MAJOR,
889         .minor = DRIVER_MINOR,
890         .patchlevel = DRIVER_PATCHLEVEL,
891 };
892 
893 static struct pci_device_id
894 nouveau_drm_pci_table[] = {
895         {
896                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
897                 .class = PCI_BASE_CLASS_DISPLAY << 16,
898                 .class_mask  = 0xff << 16,
899         },
900         {
901                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
902                 .class = PCI_BASE_CLASS_DISPLAY << 16,
903                 .class_mask  = 0xff << 16,
904         },
905         {}
906 };
907 
908 static int nouveau_pmops_runtime_suspend(struct device *dev)
909 {
910         struct pci_dev *pdev = to_pci_dev(dev);
911         struct drm_device *drm_dev = pci_get_drvdata(pdev);
912         int ret;
913 
914         if (nouveau_runtime_pm == 0) {
915                 pm_runtime_forbid(dev);
916                 return -EBUSY;
917         }
918 
919         /* are we optimus enabled? */
920         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
921                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
922                 pm_runtime_forbid(dev);
923                 return -EBUSY;
924         }
925 
926         nv_debug_level(SILENT);
927         drm_kms_helper_poll_disable(drm_dev);
928         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
929         nouveau_switcheroo_optimus_dsm();
930         ret = nouveau_do_suspend(drm_dev, true);
931         pci_save_state(pdev);
932         pci_disable_device(pdev);
933         pci_set_power_state(pdev, PCI_D3cold);
934         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
935         return ret;
936 }
937 
938 static int nouveau_pmops_runtime_resume(struct device *dev)
939 {
940         struct pci_dev *pdev = to_pci_dev(dev);
941         struct drm_device *drm_dev = pci_get_drvdata(pdev);
942         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
943         int ret;
944 
945         if (nouveau_runtime_pm == 0)
946                 return -EINVAL;
947 
948         pci_set_power_state(pdev, PCI_D0);
949         pci_restore_state(pdev);
950         ret = pci_enable_device(pdev);
951         if (ret)
952                 return ret;
953         pci_set_master(pdev);
954 
955         ret = nouveau_do_resume(drm_dev, true);
956         drm_kms_helper_poll_enable(drm_dev);
957         /* do magic */
958         nvif_mask(device, 0x88488, (1 << 25), (1 << 25));
959         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
960         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
961         nv_debug_level(NORMAL);
962         return ret;
963 }
964 
965 static int nouveau_pmops_runtime_idle(struct device *dev)
966 {
967         struct pci_dev *pdev = to_pci_dev(dev);
968         struct drm_device *drm_dev = pci_get_drvdata(pdev);
969         struct nouveau_drm *drm = nouveau_drm(drm_dev);
970         struct drm_crtc *crtc;
971 
972         if (nouveau_runtime_pm == 0) {
973                 pm_runtime_forbid(dev);
974                 return -EBUSY;
975         }
976 
977         /* are we optimus enabled? */
978         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
979                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
980                 pm_runtime_forbid(dev);
981                 return -EBUSY;
982         }
983 
984         /* if we have a hdmi audio device - make sure it has a driver loaded */
985         if (drm->hdmi_device) {
986                 if (!drm->hdmi_device->driver) {
987                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
988                         pm_runtime_mark_last_busy(dev);
989                         return -EBUSY;
990                 }
991         }
992 
993         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
994                 if (crtc->enabled) {
995                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
996                         return -EBUSY;
997                 }
998         }
999         pm_runtime_mark_last_busy(dev);
1000         pm_runtime_autosuspend(dev);
1001         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
1002         return 1;
1003 }
1004 
1005 static const struct dev_pm_ops nouveau_pm_ops = {
1006         .suspend = nouveau_pmops_suspend,
1007         .resume = nouveau_pmops_resume,
1008         .freeze = nouveau_pmops_freeze,
1009         .thaw = nouveau_pmops_thaw,
1010         .poweroff = nouveau_pmops_freeze,
1011         .restore = nouveau_pmops_resume,
1012         .runtime_suspend = nouveau_pmops_runtime_suspend,
1013         .runtime_resume = nouveau_pmops_runtime_resume,
1014         .runtime_idle = nouveau_pmops_runtime_idle,
1015 };
1016 
1017 static struct pci_driver
1018 nouveau_drm_pci_driver = {
1019         .name = "nouveau",
1020         .id_table = nouveau_drm_pci_table,
1021         .probe = nouveau_drm_probe,
1022         .remove = nouveau_drm_remove,
1023         .driver.pm = &nouveau_pm_ops,
1024 };
1025 
1026 struct drm_device *
1027 nouveau_platform_device_create_(struct platform_device *pdev, int size,
1028                                 void **pobject)
1029 {
1030         struct drm_device *drm;
1031         int err;
1032 
1033         err = nouveau_device_create_(pdev, NOUVEAU_BUS_PLATFORM,
1034                                     nouveau_platform_name(pdev),
1035                                     dev_name(&pdev->dev), nouveau_config,
1036                                     nouveau_debug, size, pobject);
1037         if (err)
1038                 return ERR_PTR(err);
1039 
1040         drm = drm_dev_alloc(&driver, &pdev->dev);
1041         if (!drm) {
1042                 err = -ENOMEM;
1043                 goto err_free;
1044         }
1045 
1046         err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
1047         if (err < 0)
1048                 goto err_free;
1049 
1050         drm->platformdev = pdev;
1051         platform_set_drvdata(pdev, drm);
1052 
1053         return drm;
1054 
1055 err_free:
1056         nouveau_object_ref(NULL, (struct nouveau_object **)pobject);
1057 
1058         return ERR_PTR(err);
1059 }
1060 EXPORT_SYMBOL(nouveau_platform_device_create_);
1061 
1062 static int __init
1063 nouveau_drm_init(void)
1064 {
1065         if (nouveau_modeset == -1) {
1066 #ifdef CONFIG_VGA_CONSOLE
1067                 if (vgacon_text_force())
1068                         nouveau_modeset = 0;
1069 #endif
1070         }
1071 
1072         if (!nouveau_modeset)
1073                 return 0;
1074 
1075         nouveau_register_dsm_handler();
1076         return drm_pci_init(&driver, &nouveau_drm_pci_driver);
1077 }
1078 
1079 static void __exit
1080 nouveau_drm_exit(void)
1081 {
1082         if (!nouveau_modeset)
1083                 return;
1084 
1085         drm_pci_exit(&driver, &nouveau_drm_pci_driver);
1086         nouveau_unregister_dsm_handler();
1087 }
1088 
1089 module_init(nouveau_drm_init);
1090 module_exit(nouveau_drm_exit);
1091 
1092 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1093 MODULE_AUTHOR(DRIVER_AUTHOR);
1094 MODULE_DESCRIPTION(DRIVER_DESC);
1095 MODULE_LICENSE("GPL and additional rights");
1096 

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