Version:  2.0.40 2.2.26 2.4.37 3.10 3.11 3.12 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

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/apple-gmux.h>
 26 #include <linux/console.h>
 27 #include <linux/delay.h>
 28 #include <linux/module.h>
 29 #include <linux/pci.h>
 30 #include <linux/pm_runtime.h>
 31 #include <linux/vgaarb.h>
 32 #include <linux/vga_switcheroo.h>
 33 
 34 #include "drmP.h"
 35 #include "drm_crtc_helper.h"
 36 
 37 #include <core/gpuobj.h>
 38 #include <core/option.h>
 39 #include <core/pci.h>
 40 #include <core/tegra.h>
 41 
 42 #include <nvif/class.h>
 43 #include <nvif/cl0002.h>
 44 #include <nvif/cla06f.h>
 45 #include <nvif/if0004.h>
 46 
 47 #include "nouveau_drv.h"
 48 #include "nouveau_dma.h"
 49 #include "nouveau_ttm.h"
 50 #include "nouveau_gem.h"
 51 #include "nouveau_vga.h"
 52 #include "nouveau_hwmon.h"
 53 #include "nouveau_acpi.h"
 54 #include "nouveau_bios.h"
 55 #include "nouveau_ioctl.h"
 56 #include "nouveau_abi16.h"
 57 #include "nouveau_fbcon.h"
 58 #include "nouveau_fence.h"
 59 #include "nouveau_debugfs.h"
 60 #include "nouveau_usif.h"
 61 #include "nouveau_connector.h"
 62 #include "nouveau_platform.h"
 63 
 64 MODULE_PARM_DESC(config, "option string to pass to driver core");
 65 static char *nouveau_config;
 66 module_param_named(config, nouveau_config, charp, 0400);
 67 
 68 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
 69 static char *nouveau_debug;
 70 module_param_named(debug, nouveau_debug, charp, 0400);
 71 
 72 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
 73 static int nouveau_noaccel = 0;
 74 module_param_named(noaccel, nouveau_noaccel, int, 0400);
 75 
 76 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
 77                           "0 = disabled, 1 = enabled, 2 = headless)");
 78 int nouveau_modeset = -1;
 79 module_param_named(modeset, nouveau_modeset, int, 0400);
 80 
 81 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
 82 int nouveau_runtime_pm = -1;
 83 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
 84 
 85 static struct drm_driver driver_stub;
 86 static struct drm_driver driver_pci;
 87 static struct drm_driver driver_platform;
 88 
 89 static u64
 90 nouveau_pci_name(struct pci_dev *pdev)
 91 {
 92         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
 93         name |= pdev->bus->number << 16;
 94         name |= PCI_SLOT(pdev->devfn) << 8;
 95         return name | PCI_FUNC(pdev->devfn);
 96 }
 97 
 98 static u64
 99 nouveau_platform_name(struct platform_device *platformdev)
100 {
101         return platformdev->id;
102 }
103 
104 static u64
105 nouveau_name(struct drm_device *dev)
106 {
107         if (dev->pdev)
108                 return nouveau_pci_name(dev->pdev);
109         else
110                 return nouveau_platform_name(dev->platformdev);
111 }
112 
113 static int
114 nouveau_cli_create(struct drm_device *dev, const char *sname,
115                    int size, void **pcli)
116 {
117         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
118         int ret;
119         if (cli) {
120                 snprintf(cli->name, sizeof(cli->name), "%s", sname);
121                 cli->dev = dev;
122 
123                 ret = nvif_client_init(NULL, cli->name, nouveau_name(dev),
124                                        nouveau_config, nouveau_debug,
125                                        &cli->base);
126                 if (ret == 0) {
127                         mutex_init(&cli->mutex);
128                         usif_client_init(cli);
129                 }
130                 return ret;
131         }
132         return -ENOMEM;
133 }
134 
135 static void
136 nouveau_cli_destroy(struct nouveau_cli *cli)
137 {
138         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
139         nvif_client_fini(&cli->base);
140         usif_client_fini(cli);
141         kfree(cli);
142 }
143 
144 static void
145 nouveau_accel_fini(struct nouveau_drm *drm)
146 {
147         nouveau_channel_idle(drm->channel);
148         nvif_object_fini(&drm->ntfy);
149         nvkm_gpuobj_del(&drm->notify);
150         nvif_notify_fini(&drm->flip);
151         nvif_object_fini(&drm->nvsw);
152         nouveau_channel_del(&drm->channel);
153 
154         nouveau_channel_idle(drm->cechan);
155         nvif_object_fini(&drm->ttm.copy);
156         nouveau_channel_del(&drm->cechan);
157 
158         if (drm->fence)
159                 nouveau_fence(drm)->dtor(drm);
160 }
161 
162 static void
163 nouveau_accel_init(struct nouveau_drm *drm)
164 {
165         struct nvif_device *device = &drm->device;
166         struct nvif_sclass *sclass;
167         u32 arg0, arg1;
168         int ret, i, n;
169 
170         if (nouveau_noaccel)
171                 return;
172 
173         /* initialise synchronisation routines */
174         /*XXX: this is crap, but the fence/channel stuff is a little
175          *     backwards in some places.  this will be fixed.
176          */
177         ret = n = nvif_object_sclass_get(&device->object, &sclass);
178         if (ret < 0)
179                 return;
180 
181         for (ret = -ENOSYS, i = 0; i < n; i++) {
182                 switch (sclass[i].oclass) {
183                 case NV03_CHANNEL_DMA:
184                         ret = nv04_fence_create(drm);
185                         break;
186                 case NV10_CHANNEL_DMA:
187                         ret = nv10_fence_create(drm);
188                         break;
189                 case NV17_CHANNEL_DMA:
190                 case NV40_CHANNEL_DMA:
191                         ret = nv17_fence_create(drm);
192                         break;
193                 case NV50_CHANNEL_GPFIFO:
194                         ret = nv50_fence_create(drm);
195                         break;
196                 case G82_CHANNEL_GPFIFO:
197                         ret = nv84_fence_create(drm);
198                         break;
199                 case FERMI_CHANNEL_GPFIFO:
200                 case KEPLER_CHANNEL_GPFIFO_A:
201                 case KEPLER_CHANNEL_GPFIFO_B:
202                 case MAXWELL_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         /*
319          * apple-gmux is needed on dual GPU MacBook Pro
320          * to probe the panel if we're the inactive GPU.
321          */
322         if (IS_ENABLED(CONFIG_VGA_ARB) && IS_ENABLED(CONFIG_VGA_SWITCHEROO) &&
323             apple_gmux_present() && pdev != vga_default_device() &&
324             !vga_switcheroo_handler_flags())
325                 return -EPROBE_DEFER;
326 
327         /* remove conflicting drivers (vesafb, efifb etc) */
328         aper = alloc_apertures(3);
329         if (!aper)
330                 return -ENOMEM;
331 
332         aper->ranges[0].base = pci_resource_start(pdev, 1);
333         aper->ranges[0].size = pci_resource_len(pdev, 1);
334         aper->count = 1;
335 
336         if (pci_resource_len(pdev, 2)) {
337                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
338                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
339                 aper->count++;
340         }
341 
342         if (pci_resource_len(pdev, 3)) {
343                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
344                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
345                 aper->count++;
346         }
347 
348 #ifdef CONFIG_X86
349         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
350 #endif
351         if (nouveau_modeset != 2)
352                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
353         kfree(aper);
354 
355         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
356                                   true, true, ~0ULL, &device);
357         if (ret)
358                 return ret;
359 
360         pci_set_master(pdev);
361 
362         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
363         if (ret) {
364                 nvkm_device_del(&device);
365                 return ret;
366         }
367 
368         return 0;
369 }
370 
371 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
372 
373 static void
374 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
375 {
376         struct pci_dev *pdev = drm->dev->pdev;
377 
378         if (!pdev) {
379                 NV_DEBUG(drm, "not a PCI device; no HDMI\n");
380                 drm->hdmi_device = NULL;
381                 return;
382         }
383 
384         /* subfunction one is a hdmi audio device? */
385         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
386                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
387 
388         if (!drm->hdmi_device) {
389                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
390                 return;
391         }
392 
393         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
394                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
395                 pci_dev_put(drm->hdmi_device);
396                 drm->hdmi_device = NULL;
397                 return;
398         }
399 }
400 
401 static int
402 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
403 {
404         struct nouveau_drm *drm;
405         int ret;
406 
407         ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
408         if (ret)
409                 return ret;
410 
411         dev->dev_private = drm;
412         drm->dev = dev;
413         nvxx_client(&drm->client.base)->debug =
414                 nvkm_dbgopt(nouveau_debug, "DRM");
415 
416         INIT_LIST_HEAD(&drm->clients);
417         spin_lock_init(&drm->tile.lock);
418 
419         nouveau_get_hdmi_dev(drm);
420 
421         ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE,
422                                &(struct nv_device_v0) {
423                                         .device = ~0,
424                                }, sizeof(struct nv_device_v0),
425                                &drm->device);
426         if (ret)
427                 goto fail_device;
428 
429         dev->irq_enabled = true;
430 
431         /* workaround an odd issue on nvc1 by disabling the device's
432          * nosnoop capability.  hopefully won't cause issues until a
433          * better fix is found - assuming there is one...
434          */
435         if (drm->device.info.chipset == 0xc1)
436                 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
437 
438         nouveau_vga_init(drm);
439 
440         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
441                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
442                                   0x1000, NULL, &drm->client.vm);
443                 if (ret)
444                         goto fail_device;
445 
446                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
447         }
448 
449         ret = nouveau_ttm_init(drm);
450         if (ret)
451                 goto fail_ttm;
452 
453         ret = nouveau_bios_init(dev);
454         if (ret)
455                 goto fail_bios;
456 
457         ret = nouveau_display_create(dev);
458         if (ret)
459                 goto fail_dispctor;
460 
461         if (dev->mode_config.num_crtc) {
462                 ret = nouveau_display_init(dev);
463                 if (ret)
464                         goto fail_dispinit;
465         }
466 
467         nouveau_debugfs_init(drm);
468         nouveau_hwmon_init(dev);
469         nouveau_accel_init(drm);
470         nouveau_fbcon_init(dev);
471 
472         if (nouveau_runtime_pm != 0) {
473                 pm_runtime_use_autosuspend(dev->dev);
474                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
475                 pm_runtime_set_active(dev->dev);
476                 pm_runtime_allow(dev->dev);
477                 pm_runtime_mark_last_busy(dev->dev);
478                 pm_runtime_put(dev->dev);
479         }
480         return 0;
481 
482 fail_dispinit:
483         nouveau_display_destroy(dev);
484 fail_dispctor:
485         nouveau_bios_takedown(dev);
486 fail_bios:
487         nouveau_ttm_fini(drm);
488 fail_ttm:
489         nouveau_vga_fini(drm);
490 fail_device:
491         nvif_device_fini(&drm->device);
492         nouveau_cli_destroy(&drm->client);
493         return ret;
494 }
495 
496 static int
497 nouveau_drm_unload(struct drm_device *dev)
498 {
499         struct nouveau_drm *drm = nouveau_drm(dev);
500 
501         pm_runtime_get_sync(dev->dev);
502         nouveau_fbcon_fini(dev);
503         nouveau_accel_fini(drm);
504         nouveau_hwmon_fini(dev);
505         nouveau_debugfs_fini(drm);
506 
507         if (dev->mode_config.num_crtc)
508                 nouveau_display_fini(dev);
509         nouveau_display_destroy(dev);
510 
511         nouveau_bios_takedown(dev);
512 
513         nouveau_ttm_fini(drm);
514         nouveau_vga_fini(drm);
515 
516         nvif_device_fini(&drm->device);
517         if (drm->hdmi_device)
518                 pci_dev_put(drm->hdmi_device);
519         nouveau_cli_destroy(&drm->client);
520         return 0;
521 }
522 
523 void
524 nouveau_drm_device_remove(struct drm_device *dev)
525 {
526         struct nouveau_drm *drm = nouveau_drm(dev);
527         struct nvkm_client *client;
528         struct nvkm_device *device;
529 
530         dev->irq_enabled = false;
531         client = nvxx_client(&drm->client.base);
532         device = nvkm_device_find(client->device);
533         drm_put_dev(dev);
534 
535         nvkm_device_del(&device);
536 }
537 
538 static void
539 nouveau_drm_remove(struct pci_dev *pdev)
540 {
541         struct drm_device *dev = pci_get_drvdata(pdev);
542 
543         nouveau_drm_device_remove(dev);
544 }
545 
546 static int
547 nouveau_do_suspend(struct drm_device *dev, bool runtime)
548 {
549         struct nouveau_drm *drm = nouveau_drm(dev);
550         struct nouveau_cli *cli;
551         int ret;
552 
553         if (dev->mode_config.num_crtc) {
554                 NV_INFO(drm, "suspending console...\n");
555                 nouveau_fbcon_set_suspend(dev, 1);
556                 NV_INFO(drm, "suspending display...\n");
557                 ret = nouveau_display_suspend(dev, runtime);
558                 if (ret)
559                         return ret;
560         }
561 
562         NV_INFO(drm, "evicting buffers...\n");
563         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
564 
565         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
566         if (drm->cechan) {
567                 ret = nouveau_channel_idle(drm->cechan);
568                 if (ret)
569                         goto fail_display;
570         }
571 
572         if (drm->channel) {
573                 ret = nouveau_channel_idle(drm->channel);
574                 if (ret)
575                         goto fail_display;
576         }
577 
578         NV_INFO(drm, "suspending client object trees...\n");
579         if (drm->fence && nouveau_fence(drm)->suspend) {
580                 if (!nouveau_fence(drm)->suspend(drm)) {
581                         ret = -ENOMEM;
582                         goto fail_display;
583                 }
584         }
585 
586         list_for_each_entry(cli, &drm->clients, head) {
587                 ret = nvif_client_suspend(&cli->base);
588                 if (ret)
589                         goto fail_client;
590         }
591 
592         NV_INFO(drm, "suspending kernel object tree...\n");
593         ret = nvif_client_suspend(&drm->client.base);
594         if (ret)
595                 goto fail_client;
596 
597         return 0;
598 
599 fail_client:
600         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
601                 nvif_client_resume(&cli->base);
602         }
603 
604         if (drm->fence && nouveau_fence(drm)->resume)
605                 nouveau_fence(drm)->resume(drm);
606 
607 fail_display:
608         if (dev->mode_config.num_crtc) {
609                 NV_INFO(drm, "resuming display...\n");
610                 nouveau_display_resume(dev, runtime);
611         }
612         return ret;
613 }
614 
615 static int
616 nouveau_do_resume(struct drm_device *dev, bool runtime)
617 {
618         struct nouveau_drm *drm = nouveau_drm(dev);
619         struct nouveau_cli *cli;
620 
621         NV_INFO(drm, "resuming kernel object tree...\n");
622         nvif_client_resume(&drm->client.base);
623 
624         NV_INFO(drm, "resuming client object trees...\n");
625         if (drm->fence && nouveau_fence(drm)->resume)
626                 nouveau_fence(drm)->resume(drm);
627 
628         list_for_each_entry(cli, &drm->clients, head) {
629                 nvif_client_resume(&cli->base);
630         }
631 
632         nouveau_run_vbios_init(dev);
633 
634         if (dev->mode_config.num_crtc) {
635                 NV_INFO(drm, "resuming display...\n");
636                 nouveau_display_resume(dev, runtime);
637                 NV_INFO(drm, "resuming console...\n");
638                 nouveau_fbcon_set_suspend(dev, 0);
639         }
640 
641         return 0;
642 }
643 
644 int
645 nouveau_pmops_suspend(struct device *dev)
646 {
647         struct pci_dev *pdev = to_pci_dev(dev);
648         struct drm_device *drm_dev = pci_get_drvdata(pdev);
649         int ret;
650 
651         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
652             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
653                 return 0;
654 
655         ret = nouveau_do_suspend(drm_dev, false);
656         if (ret)
657                 return ret;
658 
659         pci_save_state(pdev);
660         pci_disable_device(pdev);
661         pci_set_power_state(pdev, PCI_D3hot);
662         udelay(200);
663         return 0;
664 }
665 
666 int
667 nouveau_pmops_resume(struct device *dev)
668 {
669         struct pci_dev *pdev = to_pci_dev(dev);
670         struct drm_device *drm_dev = pci_get_drvdata(pdev);
671         int ret;
672 
673         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
674             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
675                 return 0;
676 
677         pci_set_power_state(pdev, PCI_D0);
678         pci_restore_state(pdev);
679         ret = pci_enable_device(pdev);
680         if (ret)
681                 return ret;
682         pci_set_master(pdev);
683 
684         return nouveau_do_resume(drm_dev, false);
685 }
686 
687 static int
688 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
696 nouveau_pmops_thaw(struct device *dev)
697 {
698         struct pci_dev *pdev = to_pci_dev(dev);
699         struct drm_device *drm_dev = pci_get_drvdata(pdev);
700         return nouveau_do_resume(drm_dev, false);
701 }
702 
703 static int
704 nouveau_pmops_runtime_suspend(struct device *dev)
705 {
706         struct pci_dev *pdev = to_pci_dev(dev);
707         struct drm_device *drm_dev = pci_get_drvdata(pdev);
708         int ret;
709 
710         if (nouveau_runtime_pm == 0) {
711                 pm_runtime_forbid(dev);
712                 return -EBUSY;
713         }
714 
715         /* are we optimus enabled? */
716         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
717                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
718                 pm_runtime_forbid(dev);
719                 return -EBUSY;
720         }
721 
722         drm_kms_helper_poll_disable(drm_dev);
723         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
724         nouveau_switcheroo_optimus_dsm();
725         ret = nouveau_do_suspend(drm_dev, true);
726         pci_save_state(pdev);
727         pci_disable_device(pdev);
728         pci_ignore_hotplug(pdev);
729         pci_set_power_state(pdev, PCI_D3cold);
730         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
731         return ret;
732 }
733 
734 static int
735 nouveau_pmops_runtime_resume(struct device *dev)
736 {
737         struct pci_dev *pdev = to_pci_dev(dev);
738         struct drm_device *drm_dev = pci_get_drvdata(pdev);
739         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
740         int ret;
741 
742         if (nouveau_runtime_pm == 0)
743                 return -EINVAL;
744 
745         pci_set_power_state(pdev, PCI_D0);
746         pci_restore_state(pdev);
747         ret = pci_enable_device(pdev);
748         if (ret)
749                 return ret;
750         pci_set_master(pdev);
751 
752         ret = nouveau_do_resume(drm_dev, true);
753         drm_kms_helper_poll_enable(drm_dev);
754         /* do magic */
755         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
756         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
757         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
758         return ret;
759 }
760 
761 static int
762 nouveau_pmops_runtime_idle(struct device *dev)
763 {
764         struct pci_dev *pdev = to_pci_dev(dev);
765         struct drm_device *drm_dev = pci_get_drvdata(pdev);
766         struct nouveau_drm *drm = nouveau_drm(drm_dev);
767         struct drm_crtc *crtc;
768 
769         if (nouveau_runtime_pm == 0) {
770                 pm_runtime_forbid(dev);
771                 return -EBUSY;
772         }
773 
774         /* are we optimus enabled? */
775         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
776                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
777                 pm_runtime_forbid(dev);
778                 return -EBUSY;
779         }
780 
781         /* if we have a hdmi audio device - make sure it has a driver loaded */
782         if (drm->hdmi_device) {
783                 if (!drm->hdmi_device->driver) {
784                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
785                         pm_runtime_mark_last_busy(dev);
786                         return -EBUSY;
787                 }
788         }
789 
790         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
791                 if (crtc->enabled) {
792                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
793                         return -EBUSY;
794                 }
795         }
796         pm_runtime_mark_last_busy(dev);
797         pm_runtime_autosuspend(dev);
798         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
799         return 1;
800 }
801 
802 static int
803 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
804 {
805         struct nouveau_drm *drm = nouveau_drm(dev);
806         struct nouveau_cli *cli;
807         char name[32], tmpname[TASK_COMM_LEN];
808         int ret;
809 
810         /* need to bring up power immediately if opening device */
811         ret = pm_runtime_get_sync(dev->dev);
812         if (ret < 0 && ret != -EACCES)
813                 return ret;
814 
815         get_task_comm(tmpname, current);
816         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
817 
818         ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
819 
820         if (ret)
821                 goto out_suspend;
822 
823         cli->base.super = false;
824 
825         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
826                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
827                                   0x1000, NULL, &cli->vm);
828                 if (ret) {
829                         nouveau_cli_destroy(cli);
830                         goto out_suspend;
831                 }
832 
833                 nvxx_client(&cli->base)->vm = cli->vm;
834         }
835 
836         fpriv->driver_priv = cli;
837 
838         mutex_lock(&drm->client.mutex);
839         list_add(&cli->head, &drm->clients);
840         mutex_unlock(&drm->client.mutex);
841 
842 out_suspend:
843         pm_runtime_mark_last_busy(dev->dev);
844         pm_runtime_put_autosuspend(dev->dev);
845 
846         return ret;
847 }
848 
849 static void
850 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
851 {
852         struct nouveau_cli *cli = nouveau_cli(fpriv);
853         struct nouveau_drm *drm = nouveau_drm(dev);
854 
855         pm_runtime_get_sync(dev->dev);
856 
857         mutex_lock(&cli->mutex);
858         if (cli->abi16)
859                 nouveau_abi16_fini(cli->abi16);
860         mutex_unlock(&cli->mutex);
861 
862         mutex_lock(&drm->client.mutex);
863         list_del(&cli->head);
864         mutex_unlock(&drm->client.mutex);
865 
866 }
867 
868 static void
869 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
870 {
871         struct nouveau_cli *cli = nouveau_cli(fpriv);
872         nouveau_cli_destroy(cli);
873         pm_runtime_mark_last_busy(dev->dev);
874         pm_runtime_put_autosuspend(dev->dev);
875 }
876 
877 static const struct drm_ioctl_desc
878 nouveau_ioctls[] = {
879         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
880         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
881         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
882         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
883         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
884         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
885         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
886         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
887         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
888         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
889         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
890         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
891 };
892 
893 long
894 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
895 {
896         struct drm_file *filp = file->private_data;
897         struct drm_device *dev = filp->minor->dev;
898         long ret;
899 
900         ret = pm_runtime_get_sync(dev->dev);
901         if (ret < 0 && ret != -EACCES)
902                 return ret;
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_drm_debugfs_init,
948         .debugfs_cleanup = nouveau_drm_debugfs_cleanup,
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 
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 }
1023 
1024 static const struct dev_pm_ops nouveau_pm_ops = {
1025         .suspend = nouveau_pmops_suspend,
1026         .resume = nouveau_pmops_resume,
1027         .freeze = nouveau_pmops_freeze,
1028         .thaw = nouveau_pmops_thaw,
1029         .poweroff = nouveau_pmops_freeze,
1030         .restore = nouveau_pmops_resume,
1031         .runtime_suspend = nouveau_pmops_runtime_suspend,
1032         .runtime_resume = nouveau_pmops_runtime_resume,
1033         .runtime_idle = nouveau_pmops_runtime_idle,
1034 };
1035 
1036 static struct pci_driver
1037 nouveau_drm_pci_driver = {
1038         .name = "nouveau",
1039         .id_table = nouveau_drm_pci_table,
1040         .probe = nouveau_drm_probe,
1041         .remove = nouveau_drm_remove,
1042         .driver.pm = &nouveau_pm_ops,
1043 };
1044 
1045 struct drm_device *
1046 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1047                                struct platform_device *pdev,
1048                                struct nvkm_device **pdevice)
1049 {
1050         struct drm_device *drm;
1051         int err;
1052 
1053         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1054                                     true, true, ~0ULL, pdevice);
1055         if (err)
1056                 goto err_free;
1057 
1058         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1059         if (!drm) {
1060                 err = -ENOMEM;
1061                 goto err_free;
1062         }
1063 
1064         drm->platformdev = pdev;
1065         platform_set_drvdata(pdev, drm);
1066 
1067         return drm;
1068 
1069 err_free:
1070         nvkm_device_del(pdevice);
1071 
1072         return ERR_PTR(err);
1073 }
1074 
1075 static int __init
1076 nouveau_drm_init(void)
1077 {
1078         driver_pci = driver_stub;
1079         driver_pci.set_busid = drm_pci_set_busid;
1080         driver_platform = driver_stub;
1081         driver_platform.set_busid = drm_platform_set_busid;
1082 
1083         nouveau_display_options();
1084 
1085         if (nouveau_modeset == -1) {
1086                 if (vgacon_text_force())
1087                         nouveau_modeset = 0;
1088         }
1089 
1090         if (!nouveau_modeset)
1091                 return 0;
1092 
1093 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1094         platform_driver_register(&nouveau_platform_driver);
1095 #endif
1096 
1097         nouveau_register_dsm_handler();
1098         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1099 }
1100 
1101 static void __exit
1102 nouveau_drm_exit(void)
1103 {
1104         if (!nouveau_modeset)
1105                 return;
1106 
1107         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1108         nouveau_unregister_dsm_handler();
1109 
1110 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1111         platform_driver_unregister(&nouveau_platform_driver);
1112 #endif
1113 }
1114 
1115 module_init(nouveau_drm_init);
1116 module_exit(nouveau_drm_exit);
1117 
1118 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1119 MODULE_AUTHOR(DRIVER_AUTHOR);
1120 MODULE_DESCRIPTION(DRIVER_DESC);
1121 MODULE_LICENSE("GPL and additional rights");
1122 

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