Version:  2.0.40 2.2.26 2.4.37 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 3.18 3.19

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 #include "nouveau_connector.h"
 55 
 56 MODULE_PARM_DESC(config, "option string to pass to driver core");
 57 static char *nouveau_config;
 58 module_param_named(config, nouveau_config, charp, 0400);
 59 
 60 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
 61 static char *nouveau_debug;
 62 module_param_named(debug, nouveau_debug, charp, 0400);
 63 
 64 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
 65 static int nouveau_noaccel = 0;
 66 module_param_named(noaccel, nouveau_noaccel, int, 0400);
 67 
 68 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
 69                           "0 = disabled, 1 = enabled, 2 = headless)");
 70 int nouveau_modeset = -1;
 71 module_param_named(modeset, nouveau_modeset, int, 0400);
 72 
 73 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
 74 int nouveau_runtime_pm = -1;
 75 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
 76 
 77 static struct drm_driver driver_stub;
 78 static struct drm_driver driver_pci;
 79 static struct drm_driver driver_platform;
 80 
 81 static u64
 82 nouveau_pci_name(struct pci_dev *pdev)
 83 {
 84         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
 85         name |= pdev->bus->number << 16;
 86         name |= PCI_SLOT(pdev->devfn) << 8;
 87         return name | PCI_FUNC(pdev->devfn);
 88 }
 89 
 90 static u64
 91 nouveau_platform_name(struct platform_device *platformdev)
 92 {
 93         return platformdev->id;
 94 }
 95 
 96 static u64
 97 nouveau_name(struct drm_device *dev)
 98 {
 99         if (dev->pdev)
100                 return nouveau_pci_name(dev->pdev);
101         else
102                 return nouveau_platform_name(dev->platformdev);
103 }
104 
105 static int
106 nouveau_cli_create(u64 name, const char *sname,
107                    int size, void **pcli)
108 {
109         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
110         if (cli) {
111                 int ret = nvif_client_init(NULL, NULL, sname, name,
112                                            nouveau_config, nouveau_debug,
113                                           &cli->base);
114                 if (ret == 0) {
115                         mutex_init(&cli->mutex);
116                         usif_client_init(cli);
117                 }
118                 return ret;
119         }
120         return -ENOMEM;
121 }
122 
123 static void
124 nouveau_cli_destroy(struct nouveau_cli *cli)
125 {
126         nouveau_vm_ref(NULL, &nvkm_client(&cli->base)->vm, NULL);
127         nvif_client_fini(&cli->base);
128         usif_client_fini(cli);
129 }
130 
131 static void
132 nouveau_accel_fini(struct nouveau_drm *drm)
133 {
134         nouveau_channel_del(&drm->channel);
135         nvif_object_fini(&drm->ntfy);
136         nouveau_gpuobj_ref(NULL, &drm->notify);
137         nvif_object_fini(&drm->nvsw);
138         nouveau_channel_del(&drm->cechan);
139         nvif_object_fini(&drm->ttm.copy);
140         if (drm->fence)
141                 nouveau_fence(drm)->dtor(drm);
142 }
143 
144 static void
145 nouveau_accel_init(struct nouveau_drm *drm)
146 {
147         struct nvif_device *device = &drm->device;
148         u32 arg0, arg1;
149         u32 sclass[16];
150         int ret, i;
151 
152         if (nouveau_noaccel)
153                 return;
154 
155         /* initialise synchronisation routines */
156         /*XXX: this is crap, but the fence/channel stuff is a little
157          *     backwards in some places.  this will be fixed.
158          */
159         ret = nvif_object_sclass(&device->base, sclass, ARRAY_SIZE(sclass));
160         if (ret < 0)
161                 return;
162 
163         for (ret = -ENOSYS, i = 0; ret && i < ARRAY_SIZE(sclass); i++) {
164                 switch (sclass[i]) {
165                 case NV03_CHANNEL_DMA:
166                         ret = nv04_fence_create(drm);
167                         break;
168                 case NV10_CHANNEL_DMA:
169                         ret = nv10_fence_create(drm);
170                         break;
171                 case NV17_CHANNEL_DMA:
172                 case NV40_CHANNEL_DMA:
173                         ret = nv17_fence_create(drm);
174                         break;
175                 case NV50_CHANNEL_GPFIFO:
176                         ret = nv50_fence_create(drm);
177                         break;
178                 case G82_CHANNEL_GPFIFO:
179                         ret = nv84_fence_create(drm);
180                         break;
181                 case FERMI_CHANNEL_GPFIFO:
182                 case KEPLER_CHANNEL_GPFIFO_A:
183                         ret = nvc0_fence_create(drm);
184                         break;
185                 default:
186                         break;
187                 }
188         }
189 
190         if (ret) {
191                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
192                 nouveau_accel_fini(drm);
193                 return;
194         }
195 
196         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
197                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
198                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
199                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
200                                           0, &drm->cechan);
201                 if (ret)
202                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
203 
204                 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
205                 arg1 = 1;
206         } else
207         if (device->info.chipset >= 0xa3 &&
208             device->info.chipset != 0xaa &&
209             device->info.chipset != 0xac) {
210                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
211                                           NvDmaFB, NvDmaTT, &drm->cechan);
212                 if (ret)
213                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
214 
215                 arg0 = NvDmaFB;
216                 arg1 = NvDmaTT;
217         } else {
218                 arg0 = NvDmaFB;
219                 arg1 = NvDmaTT;
220         }
221 
222         ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN, arg0, arg1,
223                                  &drm->channel);
224         if (ret) {
225                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
226                 nouveau_accel_fini(drm);
227                 return;
228         }
229 
230         ret = nvif_object_init(drm->channel->object, NULL, NVDRM_NVSW,
231                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
232         if (ret == 0) {
233                 struct nouveau_software_chan *swch;
234                 ret = RING_SPACE(drm->channel, 2);
235                 if (ret == 0) {
236                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
237                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
238                                 OUT_RING  (drm->channel, NVDRM_NVSW);
239                         } else
240                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
241                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
242                                 OUT_RING  (drm->channel, 0x001f0000);
243                         }
244                 }
245                 swch = (void *)nvkm_object(&drm->nvsw)->parent;
246                 swch->flip = nouveau_flip_complete;
247                 swch->flip_data = drm->channel;
248         }
249 
250         if (ret) {
251                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
252                 nouveau_accel_fini(drm);
253                 return;
254         }
255 
256         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
257                 ret = nouveau_gpuobj_new(nvkm_object(&drm->device), NULL, 32,
258                                          0, 0, &drm->notify);
259                 if (ret) {
260                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
261                         nouveau_accel_fini(drm);
262                         return;
263                 }
264 
265                 ret = nvif_object_init(drm->channel->object, NULL, NvNotify0,
266                                        NV_DMA_IN_MEMORY,
267                                        &(struct nv_dma_v0) {
268                                                 .target = NV_DMA_V0_TARGET_VRAM,
269                                                 .access = NV_DMA_V0_ACCESS_RDWR,
270                                                 .start = drm->notify->addr,
271                                                 .limit = drm->notify->addr + 31
272                                        }, sizeof(struct nv_dma_v0),
273                                        &drm->ntfy);
274                 if (ret) {
275                         nouveau_accel_fini(drm);
276                         return;
277                 }
278         }
279 
280 
281         nouveau_bo_move_init(drm);
282 }
283 
284 static int nouveau_drm_probe(struct pci_dev *pdev,
285                              const struct pci_device_id *pent)
286 {
287         struct nouveau_device *device;
288         struct apertures_struct *aper;
289         bool boot = false;
290         int ret;
291 
292         /* remove conflicting drivers (vesafb, efifb etc) */
293         aper = alloc_apertures(3);
294         if (!aper)
295                 return -ENOMEM;
296 
297         aper->ranges[0].base = pci_resource_start(pdev, 1);
298         aper->ranges[0].size = pci_resource_len(pdev, 1);
299         aper->count = 1;
300 
301         if (pci_resource_len(pdev, 2)) {
302                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
303                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
304                 aper->count++;
305         }
306 
307         if (pci_resource_len(pdev, 3)) {
308                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
309                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
310                 aper->count++;
311         }
312 
313 #ifdef CONFIG_X86
314         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
315 #endif
316         if (nouveau_modeset != 2)
317                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
318         kfree(aper);
319 
320         ret = nouveau_device_create(pdev, NOUVEAU_BUS_PCI,
321                                     nouveau_pci_name(pdev), pci_name(pdev),
322                                     nouveau_config, nouveau_debug, &device);
323         if (ret)
324                 return ret;
325 
326         pci_set_master(pdev);
327 
328         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
329         if (ret) {
330                 nouveau_object_ref(NULL, (struct nouveau_object **)&device);
331                 return ret;
332         }
333 
334         return 0;
335 }
336 
337 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
338 
339 static void
340 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
341 {
342         struct pci_dev *pdev = drm->dev->pdev;
343 
344         if (!pdev) {
345                 DRM_INFO("not a PCI device; no HDMI\n");
346                 drm->hdmi_device = NULL;
347                 return;
348         }
349 
350         /* subfunction one is a hdmi audio device? */
351         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
352                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
353 
354         if (!drm->hdmi_device) {
355                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
356                 return;
357         }
358 
359         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
360                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
361                 pci_dev_put(drm->hdmi_device);
362                 drm->hdmi_device = NULL;
363                 return;
364         }
365 }
366 
367 static int
368 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
369 {
370         struct pci_dev *pdev = dev->pdev;
371         struct nouveau_drm *drm;
372         int ret;
373 
374         ret = nouveau_cli_create(nouveau_name(dev), "DRM", sizeof(*drm),
375                                  (void **)&drm);
376         if (ret)
377                 return ret;
378 
379         dev->dev_private = drm;
380         drm->dev = dev;
381         nvkm_client(&drm->client.base)->debug =
382                 nouveau_dbgopt(nouveau_debug, "DRM");
383 
384         INIT_LIST_HEAD(&drm->clients);
385         spin_lock_init(&drm->tile.lock);
386 
387         nouveau_get_hdmi_dev(drm);
388 
389         /* make sure AGP controller is in a consistent state before we
390          * (possibly) execute vbios init tables (see nouveau_agp.h)
391          */
392         if (pdev && drm_pci_device_is_agp(dev) && dev->agp) {
393                 const u64 enables = NV_DEVICE_V0_DISABLE_IDENTIFY |
394                                     NV_DEVICE_V0_DISABLE_MMIO;
395                 /* dummy device object, doesn't init anything, but allows
396                  * agp code access to registers
397                  */
398                 ret = nvif_device_init(&drm->client.base.base, NULL,
399                                        NVDRM_DEVICE, NV_DEVICE,
400                                        &(struct nv_device_v0) {
401                                                 .device = ~0,
402                                                 .disable = ~enables,
403                                                 .debug0 = ~0,
404                                        }, sizeof(struct nv_device_v0),
405                                        &drm->device);
406                 if (ret)
407                         goto fail_device;
408 
409                 nouveau_agp_reset(drm);
410                 nvif_device_fini(&drm->device);
411         }
412 
413         ret = nvif_device_init(&drm->client.base.base, NULL, NVDRM_DEVICE,
414                                NV_DEVICE,
415                                &(struct nv_device_v0) {
416                                         .device = ~0,
417                                         .disable = 0,
418                                         .debug0 = 0,
419                                }, sizeof(struct nv_device_v0),
420                                &drm->device);
421         if (ret)
422                 goto fail_device;
423 
424         dev->irq_enabled = true;
425 
426         /* workaround an odd issue on nvc1 by disabling the device's
427          * nosnoop capability.  hopefully won't cause issues until a
428          * better fix is found - assuming there is one...
429          */
430         if (drm->device.info.chipset == 0xc1)
431                 nvif_mask(&drm->device, 0x00088080, 0x00000800, 0x00000000);
432 
433         nouveau_vga_init(drm);
434         nouveau_agp_init(drm);
435 
436         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
437                 ret = nouveau_vm_new(nvkm_device(&drm->device), 0, (1ULL << 40),
438                                      0x1000, &drm->client.vm);
439                 if (ret)
440                         goto fail_device;
441 
442                 nvkm_client(&drm->client.base)->vm = drm->client.vm;
443         }
444 
445         ret = nouveau_ttm_init(drm);
446         if (ret)
447                 goto fail_ttm;
448 
449         ret = nouveau_bios_init(dev);
450         if (ret)
451                 goto fail_bios;
452 
453         ret = nouveau_display_create(dev);
454         if (ret)
455                 goto fail_dispctor;
456 
457         if (dev->mode_config.num_crtc) {
458                 ret = nouveau_display_init(dev);
459                 if (ret)
460                         goto fail_dispinit;
461         }
462 
463         nouveau_sysfs_init(dev);
464         nouveau_hwmon_init(dev);
465         nouveau_accel_init(drm);
466         nouveau_fbcon_init(dev);
467 
468         if (nouveau_runtime_pm != 0) {
469                 pm_runtime_use_autosuspend(dev->dev);
470                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
471                 pm_runtime_set_active(dev->dev);
472                 pm_runtime_allow(dev->dev);
473                 pm_runtime_mark_last_busy(dev->dev);
474                 pm_runtime_put(dev->dev);
475         }
476         return 0;
477 
478 fail_dispinit:
479         nouveau_display_destroy(dev);
480 fail_dispctor:
481         nouveau_bios_takedown(dev);
482 fail_bios:
483         nouveau_ttm_fini(drm);
484 fail_ttm:
485         nouveau_agp_fini(drm);
486         nouveau_vga_fini(drm);
487 fail_device:
488         nvif_device_fini(&drm->device);
489         nouveau_cli_destroy(&drm->client);
490         return ret;
491 }
492 
493 static int
494 nouveau_drm_unload(struct drm_device *dev)
495 {
496         struct nouveau_drm *drm = nouveau_drm(dev);
497 
498         pm_runtime_get_sync(dev->dev);
499         nouveau_fbcon_fini(dev);
500         nouveau_accel_fini(drm);
501         nouveau_hwmon_fini(dev);
502         nouveau_sysfs_fini(dev);
503 
504         if (dev->mode_config.num_crtc)
505                 nouveau_display_fini(dev);
506         nouveau_display_destroy(dev);
507 
508         nouveau_bios_takedown(dev);
509 
510         nouveau_ttm_fini(drm);
511         nouveau_agp_fini(drm);
512         nouveau_vga_fini(drm);
513 
514         nvif_device_fini(&drm->device);
515         if (drm->hdmi_device)
516                 pci_dev_put(drm->hdmi_device);
517         nouveau_cli_destroy(&drm->client);
518         return 0;
519 }
520 
521 void
522 nouveau_drm_device_remove(struct drm_device *dev)
523 {
524         struct nouveau_drm *drm = nouveau_drm(dev);
525         struct nouveau_client *client;
526         struct nouveau_object *device;
527 
528         dev->irq_enabled = false;
529         client = nvkm_client(&drm->client.base);
530         device = client->device;
531         drm_put_dev(dev);
532 
533         nouveau_object_ref(NULL, &device);
534         nouveau_object_debug();
535 }
536 EXPORT_SYMBOL(nouveau_drm_device_remove);
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         nouveau_agp_fini(drm);
598         return 0;
599 
600 fail_client:
601         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
602                 nvif_client_resume(&cli->base);
603         }
604 
605         if (drm->fence && nouveau_fence(drm)->resume)
606                 nouveau_fence(drm)->resume(drm);
607 
608 fail_display:
609         if (dev->mode_config.num_crtc) {
610                 NV_INFO(drm, "resuming display...\n");
611                 nouveau_display_resume(dev, runtime);
612         }
613         return ret;
614 }
615 
616 static int
617 nouveau_do_resume(struct drm_device *dev, bool runtime)
618 {
619         struct nouveau_drm *drm = nouveau_drm(dev);
620         struct nouveau_cli *cli;
621 
622         NV_INFO(drm, "re-enabling device...\n");
623 
624         nouveau_agp_reset(drm);
625 
626         NV_INFO(drm, "resuming kernel object tree...\n");
627         nvif_client_resume(&drm->client.base);
628         nouveau_agp_init(drm);
629 
630         NV_INFO(drm, "resuming client object trees...\n");
631         if (drm->fence && nouveau_fence(drm)->resume)
632                 nouveau_fence(drm)->resume(drm);
633 
634         list_for_each_entry(cli, &drm->clients, head) {
635                 nvif_client_resume(&cli->base);
636         }
637 
638         nouveau_run_vbios_init(dev);
639 
640         if (dev->mode_config.num_crtc) {
641                 NV_INFO(drm, "resuming display...\n");
642                 nouveau_display_resume(dev, runtime);
643                 NV_INFO(drm, "resuming console...\n");
644                 nouveau_fbcon_set_suspend(dev, 0);
645         }
646 
647         return 0;
648 }
649 
650 int
651 nouveau_pmops_suspend(struct device *dev)
652 {
653         struct pci_dev *pdev = to_pci_dev(dev);
654         struct drm_device *drm_dev = pci_get_drvdata(pdev);
655         int ret;
656 
657         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
658             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
659                 return 0;
660 
661         ret = nouveau_do_suspend(drm_dev, false);
662         if (ret)
663                 return ret;
664 
665         pci_save_state(pdev);
666         pci_disable_device(pdev);
667         pci_set_power_state(pdev, PCI_D3hot);
668         return 0;
669 }
670 
671 int
672 nouveau_pmops_resume(struct device *dev)
673 {
674         struct pci_dev *pdev = to_pci_dev(dev);
675         struct drm_device *drm_dev = pci_get_drvdata(pdev);
676         int ret;
677 
678         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
679             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
680                 return 0;
681 
682         pci_set_power_state(pdev, PCI_D0);
683         pci_restore_state(pdev);
684         ret = pci_enable_device(pdev);
685         if (ret)
686                 return ret;
687         pci_set_master(pdev);
688 
689         return nouveau_do_resume(drm_dev, false);
690 }
691 
692 static int
693 nouveau_pmops_freeze(struct device *dev)
694 {
695         struct pci_dev *pdev = to_pci_dev(dev);
696         struct drm_device *drm_dev = pci_get_drvdata(pdev);
697         return nouveau_do_suspend(drm_dev, false);
698 }
699 
700 static int
701 nouveau_pmops_thaw(struct device *dev)
702 {
703         struct pci_dev *pdev = to_pci_dev(dev);
704         struct drm_device *drm_dev = pci_get_drvdata(pdev);
705         return nouveau_do_resume(drm_dev, false);
706 }
707 
708 static int
709 nouveau_pmops_runtime_suspend(struct device *dev)
710 {
711         struct pci_dev *pdev = to_pci_dev(dev);
712         struct drm_device *drm_dev = pci_get_drvdata(pdev);
713         int ret;
714 
715         if (nouveau_runtime_pm == 0) {
716                 pm_runtime_forbid(dev);
717                 return -EBUSY;
718         }
719 
720         /* are we optimus enabled? */
721         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
722                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
723                 pm_runtime_forbid(dev);
724                 return -EBUSY;
725         }
726 
727         nv_debug_level(SILENT);
728         drm_kms_helper_poll_disable(drm_dev);
729         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
730         nouveau_switcheroo_optimus_dsm();
731         ret = nouveau_do_suspend(drm_dev, true);
732         pci_save_state(pdev);
733         pci_disable_device(pdev);
734         pci_ignore_hotplug(pdev);
735         pci_set_power_state(pdev, PCI_D3cold);
736         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
737         return ret;
738 }
739 
740 static int
741 nouveau_pmops_runtime_resume(struct device *dev)
742 {
743         struct pci_dev *pdev = to_pci_dev(dev);
744         struct drm_device *drm_dev = pci_get_drvdata(pdev);
745         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
746         int ret;
747 
748         if (nouveau_runtime_pm == 0)
749                 return -EINVAL;
750 
751         pci_set_power_state(pdev, PCI_D0);
752         pci_restore_state(pdev);
753         ret = pci_enable_device(pdev);
754         if (ret)
755                 return ret;
756         pci_set_master(pdev);
757 
758         ret = nouveau_do_resume(drm_dev, true);
759         drm_kms_helper_poll_enable(drm_dev);
760         /* do magic */
761         nvif_mask(device, 0x88488, (1 << 25), (1 << 25));
762         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
763         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
764         nv_debug_level(NORMAL);
765         return ret;
766 }
767 
768 static int
769 nouveau_pmops_runtime_idle(struct device *dev)
770 {
771         struct pci_dev *pdev = to_pci_dev(dev);
772         struct drm_device *drm_dev = pci_get_drvdata(pdev);
773         struct nouveau_drm *drm = nouveau_drm(drm_dev);
774         struct drm_crtc *crtc;
775 
776         if (nouveau_runtime_pm == 0) {
777                 pm_runtime_forbid(dev);
778                 return -EBUSY;
779         }
780 
781         /* are we optimus enabled? */
782         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
783                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
784                 pm_runtime_forbid(dev);
785                 return -EBUSY;
786         }
787 
788         /* if we have a hdmi audio device - make sure it has a driver loaded */
789         if (drm->hdmi_device) {
790                 if (!drm->hdmi_device->driver) {
791                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
792                         pm_runtime_mark_last_busy(dev);
793                         return -EBUSY;
794                 }
795         }
796 
797         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
798                 if (crtc->enabled) {
799                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
800                         return -EBUSY;
801                 }
802         }
803         pm_runtime_mark_last_busy(dev);
804         pm_runtime_autosuspend(dev);
805         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
806         return 1;
807 }
808 
809 static int
810 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
811 {
812         struct nouveau_drm *drm = nouveau_drm(dev);
813         struct nouveau_cli *cli;
814         char name[32], tmpname[TASK_COMM_LEN];
815         int ret;
816 
817         /* need to bring up power immediately if opening device */
818         ret = pm_runtime_get_sync(dev->dev);
819         if (ret < 0 && ret != -EACCES)
820                 return ret;
821 
822         get_task_comm(tmpname, current);
823         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
824 
825         ret = nouveau_cli_create(nouveau_name(dev), name, sizeof(*cli),
826                         (void **)&cli);
827 
828         if (ret)
829                 goto out_suspend;
830 
831         cli->base.super = false;
832 
833         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
834                 ret = nouveau_vm_new(nvkm_device(&drm->device), 0, (1ULL << 40),
835                                      0x1000, &cli->vm);
836                 if (ret) {
837                         nouveau_cli_destroy(cli);
838                         goto out_suspend;
839                 }
840 
841                 nvkm_client(&cli->base)->vm = cli->vm;
842         }
843 
844         fpriv->driver_priv = cli;
845 
846         mutex_lock(&drm->client.mutex);
847         list_add(&cli->head, &drm->clients);
848         mutex_unlock(&drm->client.mutex);
849 
850 out_suspend:
851         pm_runtime_mark_last_busy(dev->dev);
852         pm_runtime_put_autosuspend(dev->dev);
853 
854         return ret;
855 }
856 
857 static void
858 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
859 {
860         struct nouveau_cli *cli = nouveau_cli(fpriv);
861         struct nouveau_drm *drm = nouveau_drm(dev);
862 
863         pm_runtime_get_sync(dev->dev);
864 
865         if (cli->abi16)
866                 nouveau_abi16_fini(cli->abi16);
867 
868         mutex_lock(&drm->client.mutex);
869         list_del(&cli->head);
870         mutex_unlock(&drm->client.mutex);
871 
872 }
873 
874 static void
875 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
876 {
877         struct nouveau_cli *cli = nouveau_cli(fpriv);
878         nouveau_cli_destroy(cli);
879         pm_runtime_mark_last_busy(dev->dev);
880         pm_runtime_put_autosuspend(dev->dev);
881 }
882 
883 static const struct drm_ioctl_desc
884 nouveau_ioctls[] = {
885         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
886         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
887         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
888         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
889         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
890         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
891         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
892         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
893         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
894         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
895         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
896         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
897 };
898 
899 long
900 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
901 {
902         struct drm_file *filp = file->private_data;
903         struct drm_device *dev = filp->minor->dev;
904         long ret;
905 
906         ret = pm_runtime_get_sync(dev->dev);
907         if (ret < 0 && ret != -EACCES)
908                 return ret;
909 
910         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
911         case DRM_NOUVEAU_NVIF:
912                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
913                 break;
914         default:
915                 ret = drm_ioctl(file, cmd, arg);
916                 break;
917         }
918 
919         pm_runtime_mark_last_busy(dev->dev);
920         pm_runtime_put_autosuspend(dev->dev);
921         return ret;
922 }
923 
924 static const struct file_operations
925 nouveau_driver_fops = {
926         .owner = THIS_MODULE,
927         .open = drm_open,
928         .release = drm_release,
929         .unlocked_ioctl = nouveau_drm_ioctl,
930         .mmap = nouveau_ttm_mmap,
931         .poll = drm_poll,
932         .read = drm_read,
933 #if defined(CONFIG_COMPAT)
934         .compat_ioctl = nouveau_compat_ioctl,
935 #endif
936         .llseek = noop_llseek,
937 };
938 
939 static struct drm_driver
940 driver_stub = {
941         .driver_features =
942                 DRIVER_USE_AGP |
943                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
944 
945         .load = nouveau_drm_load,
946         .unload = nouveau_drm_unload,
947         .open = nouveau_drm_open,
948         .preclose = nouveau_drm_preclose,
949         .postclose = nouveau_drm_postclose,
950         .lastclose = nouveau_vga_lastclose,
951 
952 #if defined(CONFIG_DEBUG_FS)
953         .debugfs_init = nouveau_debugfs_init,
954         .debugfs_cleanup = nouveau_debugfs_takedown,
955 #endif
956 
957         .get_vblank_counter = drm_vblank_count,
958         .enable_vblank = nouveau_display_vblank_enable,
959         .disable_vblank = nouveau_display_vblank_disable,
960         .get_scanout_position = nouveau_display_scanoutpos,
961         .get_vblank_timestamp = nouveau_display_vblstamp,
962 
963         .ioctls = nouveau_ioctls,
964         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
965         .fops = &nouveau_driver_fops,
966 
967         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
968         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
969         .gem_prime_export = drm_gem_prime_export,
970         .gem_prime_import = drm_gem_prime_import,
971         .gem_prime_pin = nouveau_gem_prime_pin,
972         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
973         .gem_prime_unpin = nouveau_gem_prime_unpin,
974         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
975         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
976         .gem_prime_vmap = nouveau_gem_prime_vmap,
977         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
978 
979         .gem_free_object = nouveau_gem_object_del,
980         .gem_open_object = nouveau_gem_object_open,
981         .gem_close_object = nouveau_gem_object_close,
982 
983         .dumb_create = nouveau_display_dumb_create,
984         .dumb_map_offset = nouveau_display_dumb_map_offset,
985         .dumb_destroy = drm_gem_dumb_destroy,
986 
987         .name = DRIVER_NAME,
988         .desc = DRIVER_DESC,
989 #ifdef GIT_REVISION
990         .date = GIT_REVISION,
991 #else
992         .date = DRIVER_DATE,
993 #endif
994         .major = DRIVER_MAJOR,
995         .minor = DRIVER_MINOR,
996         .patchlevel = DRIVER_PATCHLEVEL,
997 };
998 
999 static struct pci_device_id
1000 nouveau_drm_pci_table[] = {
1001         {
1002                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1003                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1004                 .class_mask  = 0xff << 16,
1005         },
1006         {
1007                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1008                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1009                 .class_mask  = 0xff << 16,
1010         },
1011         {}
1012 };
1013 
1014 static void nouveau_display_options(void)
1015 {
1016         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1017 
1018         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1019         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1020         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1021         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1022         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1023         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1024         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1025         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1026         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1027         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1028         DRM_DEBUG_DRIVER("... pstate       : %d\n", nouveau_pstate);
1029 }
1030 
1031 static const struct dev_pm_ops nouveau_pm_ops = {
1032         .suspend = nouveau_pmops_suspend,
1033         .resume = nouveau_pmops_resume,
1034         .freeze = nouveau_pmops_freeze,
1035         .thaw = nouveau_pmops_thaw,
1036         .poweroff = nouveau_pmops_freeze,
1037         .restore = nouveau_pmops_resume,
1038         .runtime_suspend = nouveau_pmops_runtime_suspend,
1039         .runtime_resume = nouveau_pmops_runtime_resume,
1040         .runtime_idle = nouveau_pmops_runtime_idle,
1041 };
1042 
1043 static struct pci_driver
1044 nouveau_drm_pci_driver = {
1045         .name = "nouveau",
1046         .id_table = nouveau_drm_pci_table,
1047         .probe = nouveau_drm_probe,
1048         .remove = nouveau_drm_remove,
1049         .driver.pm = &nouveau_pm_ops,
1050 };
1051 
1052 struct drm_device *
1053 nouveau_platform_device_create_(struct platform_device *pdev, int size,
1054                                 void **pobject)
1055 {
1056         struct drm_device *drm;
1057         int err;
1058 
1059         err = nouveau_device_create_(pdev, NOUVEAU_BUS_PLATFORM,
1060                                     nouveau_platform_name(pdev),
1061                                     dev_name(&pdev->dev), nouveau_config,
1062                                     nouveau_debug, size, pobject);
1063         if (err)
1064                 return ERR_PTR(err);
1065 
1066         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1067         if (!drm) {
1068                 err = -ENOMEM;
1069                 goto err_free;
1070         }
1071 
1072         err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
1073         if (err < 0)
1074                 goto err_free;
1075 
1076         drm->platformdev = pdev;
1077         platform_set_drvdata(pdev, drm);
1078 
1079         return drm;
1080 
1081 err_free:
1082         nouveau_object_ref(NULL, (struct nouveau_object **)pobject);
1083 
1084         return ERR_PTR(err);
1085 }
1086 EXPORT_SYMBOL(nouveau_platform_device_create_);
1087 
1088 static int __init
1089 nouveau_drm_init(void)
1090 {
1091         driver_pci = driver_stub;
1092         driver_pci.set_busid = drm_pci_set_busid;
1093         driver_platform = driver_stub;
1094         driver_platform.set_busid = drm_platform_set_busid;
1095 
1096         nouveau_display_options();
1097 
1098         if (nouveau_modeset == -1) {
1099 #ifdef CONFIG_VGA_CONSOLE
1100                 if (vgacon_text_force())
1101                         nouveau_modeset = 0;
1102 #endif
1103         }
1104 
1105         if (!nouveau_modeset)
1106                 return 0;
1107 
1108         nouveau_register_dsm_handler();
1109         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1110 }
1111 
1112 static void __exit
1113 nouveau_drm_exit(void)
1114 {
1115         if (!nouveau_modeset)
1116                 return;
1117 
1118         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1119         nouveau_unregister_dsm_handler();
1120 }
1121 
1122 module_init(nouveau_drm_init);
1123 module_exit(nouveau_drm_exit);
1124 
1125 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1126 MODULE_AUTHOR(DRIVER_AUTHOR);
1127 MODULE_DESCRIPTION(DRIVER_DESC);
1128 MODULE_LICENSE("GPL and additional rights");
1129 

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