Version:  2.0.40 2.2.26 2.4.37 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 4.8

Linux/drivers/gpu/drm/nouveau/nouveau_drm.c

  1 /*
  2  * Copyright 2012 Red Hat Inc.
  3  *
  4  * Permission is hereby granted, free of charge, to any person obtaining a
  5  * copy of this software and associated documentation files (the "Software"),
  6  * to deal in the Software without restriction, including without limitation
  7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8  * and/or sell copies of the Software, and to permit persons to whom the
  9  * Software is furnished to do so, subject to the following conditions:
 10  *
 11  * The above copyright notice and this permission notice shall be included in
 12  * all copies or substantial portions of the Software.
 13  *
 14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 20  * OTHER DEALINGS IN THE SOFTWARE.
 21  *
 22  * Authors: Ben Skeggs
 23  */
 24 
 25 #include <linux/console.h>
 26 #include <linux/delay.h>
 27 #include <linux/module.h>
 28 #include <linux/pci.h>
 29 #include <linux/pm_runtime.h>
 30 #include <linux/vga_switcheroo.h>
 31 
 32 #include "drmP.h"
 33 #include "drm_crtc_helper.h"
 34 
 35 #include <core/gpuobj.h>
 36 #include <core/option.h>
 37 #include <core/pci.h>
 38 #include <core/tegra.h>
 39 
 40 #include <nvif/class.h>
 41 #include <nvif/cl0002.h>
 42 #include <nvif/cla06f.h>
 43 #include <nvif/if0004.h>
 44 
 45 #include "nouveau_drv.h"
 46 #include "nouveau_dma.h"
 47 #include "nouveau_ttm.h"
 48 #include "nouveau_gem.h"
 49 #include "nouveau_vga.h"
 50 #include "nouveau_hwmon.h"
 51 #include "nouveau_acpi.h"
 52 #include "nouveau_bios.h"
 53 #include "nouveau_ioctl.h"
 54 #include "nouveau_abi16.h"
 55 #include "nouveau_fbcon.h"
 56 #include "nouveau_fence.h"
 57 #include "nouveau_debugfs.h"
 58 #include "nouveau_usif.h"
 59 #include "nouveau_connector.h"
 60 #include "nouveau_platform.h"
 61 
 62 MODULE_PARM_DESC(config, "option string to pass to driver core");
 63 static char *nouveau_config;
 64 module_param_named(config, nouveau_config, charp, 0400);
 65 
 66 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
 67 static char *nouveau_debug;
 68 module_param_named(debug, nouveau_debug, charp, 0400);
 69 
 70 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
 71 static int nouveau_noaccel = 0;
 72 module_param_named(noaccel, nouveau_noaccel, int, 0400);
 73 
 74 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
 75                           "0 = disabled, 1 = enabled, 2 = headless)");
 76 int nouveau_modeset = -1;
 77 module_param_named(modeset, nouveau_modeset, int, 0400);
 78 
 79 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
 80 int nouveau_runtime_pm = -1;
 81 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
 82 
 83 static struct drm_driver driver_stub;
 84 static struct drm_driver driver_pci;
 85 static struct drm_driver driver_platform;
 86 
 87 static u64
 88 nouveau_pci_name(struct pci_dev *pdev)
 89 {
 90         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
 91         name |= pdev->bus->number << 16;
 92         name |= PCI_SLOT(pdev->devfn) << 8;
 93         return name | PCI_FUNC(pdev->devfn);
 94 }
 95 
 96 static u64
 97 nouveau_platform_name(struct platform_device *platformdev)
 98 {
 99         return platformdev->id;
100 }
101 
102 static u64
103 nouveau_name(struct drm_device *dev)
104 {
105         if (dev->pdev)
106                 return nouveau_pci_name(dev->pdev);
107         else
108                 return nouveau_platform_name(dev->platformdev);
109 }
110 
111 static int
112 nouveau_cli_create(struct drm_device *dev, const char *sname,
113                    int size, void **pcli)
114 {
115         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
116         int ret;
117         if (cli) {
118                 snprintf(cli->name, sizeof(cli->name), "%s", sname);
119                 cli->dev = dev;
120 
121                 ret = nvif_client_init(NULL, cli->name, nouveau_name(dev),
122                                        nouveau_config, nouveau_debug,
123                                        &cli->base);
124                 if (ret == 0) {
125                         mutex_init(&cli->mutex);
126                         usif_client_init(cli);
127                 }
128                 return ret;
129         }
130         return -ENOMEM;
131 }
132 
133 static void
134 nouveau_cli_destroy(struct nouveau_cli *cli)
135 {
136         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
137         nvif_client_fini(&cli->base);
138         usif_client_fini(cli);
139         kfree(cli);
140 }
141 
142 static void
143 nouveau_accel_fini(struct nouveau_drm *drm)
144 {
145         nouveau_channel_idle(drm->channel);
146         nvif_object_fini(&drm->ntfy);
147         nvkm_gpuobj_del(&drm->notify);
148         nvif_notify_fini(&drm->flip);
149         nvif_object_fini(&drm->nvsw);
150         nouveau_channel_del(&drm->channel);
151 
152         nouveau_channel_idle(drm->cechan);
153         nvif_object_fini(&drm->ttm.copy);
154         nouveau_channel_del(&drm->cechan);
155 
156         if (drm->fence)
157                 nouveau_fence(drm)->dtor(drm);
158 }
159 
160 static void
161 nouveau_accel_init(struct nouveau_drm *drm)
162 {
163         struct nvif_device *device = &drm->device;
164         struct nvif_sclass *sclass;
165         u32 arg0, arg1;
166         int ret, i, n;
167 
168         if (nouveau_noaccel)
169                 return;
170 
171         /* initialise synchronisation routines */
172         /*XXX: this is crap, but the fence/channel stuff is a little
173          *     backwards in some places.  this will be fixed.
174          */
175         ret = n = nvif_object_sclass_get(&device->object, &sclass);
176         if (ret < 0)
177                 return;
178 
179         for (ret = -ENOSYS, i = 0; i < n; i++) {
180                 switch (sclass[i].oclass) {
181                 case NV03_CHANNEL_DMA:
182                         ret = nv04_fence_create(drm);
183                         break;
184                 case NV10_CHANNEL_DMA:
185                         ret = nv10_fence_create(drm);
186                         break;
187                 case NV17_CHANNEL_DMA:
188                 case NV40_CHANNEL_DMA:
189                         ret = nv17_fence_create(drm);
190                         break;
191                 case NV50_CHANNEL_GPFIFO:
192                         ret = nv50_fence_create(drm);
193                         break;
194                 case G82_CHANNEL_GPFIFO:
195                         ret = nv84_fence_create(drm);
196                         break;
197                 case FERMI_CHANNEL_GPFIFO:
198                 case KEPLER_CHANNEL_GPFIFO_A:
199                 case KEPLER_CHANNEL_GPFIFO_B:
200                 case MAXWELL_CHANNEL_GPFIFO_A:
201                 case PASCAL_CHANNEL_GPFIFO_A:
202                         ret = nvc0_fence_create(drm);
203                         break;
204                 default:
205                         break;
206                 }
207         }
208 
209         nvif_object_sclass_put(&sclass);
210         if (ret) {
211                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
212                 nouveau_accel_fini(drm);
213                 return;
214         }
215 
216         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
217                 ret = nouveau_channel_new(drm, &drm->device,
218                                           NVA06F_V0_ENGINE_CE0 |
219                                           NVA06F_V0_ENGINE_CE1,
220                                           0, &drm->cechan);
221                 if (ret)
222                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
223 
224                 arg0 = NVA06F_V0_ENGINE_GR;
225                 arg1 = 1;
226         } else
227         if (device->info.chipset >= 0xa3 &&
228             device->info.chipset != 0xaa &&
229             device->info.chipset != 0xac) {
230                 ret = nouveau_channel_new(drm, &drm->device,
231                                           NvDmaFB, NvDmaTT, &drm->cechan);
232                 if (ret)
233                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
234 
235                 arg0 = NvDmaFB;
236                 arg1 = NvDmaTT;
237         } else {
238                 arg0 = NvDmaFB;
239                 arg1 = NvDmaTT;
240         }
241 
242         ret = nouveau_channel_new(drm, &drm->device, arg0, arg1, &drm->channel);
243         if (ret) {
244                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
245                 nouveau_accel_fini(drm);
246                 return;
247         }
248 
249         ret = nvif_object_init(&drm->channel->user, NVDRM_NVSW,
250                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
251         if (ret == 0) {
252                 ret = RING_SPACE(drm->channel, 2);
253                 if (ret == 0) {
254                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
255                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
256                                 OUT_RING  (drm->channel, NVDRM_NVSW);
257                         } else
258                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
259                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
260                                 OUT_RING  (drm->channel, 0x001f0000);
261                         }
262                 }
263 
264                 ret = nvif_notify_init(&drm->nvsw, nouveau_flip_complete,
265                                        false, NV04_NVSW_NTFY_UEVENT,
266                                        NULL, 0, 0, &drm->flip);
267                 if (ret == 0)
268                         ret = nvif_notify_get(&drm->flip);
269                 if (ret) {
270                         nouveau_accel_fini(drm);
271                         return;
272                 }
273         }
274 
275         if (ret) {
276                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
277                 nouveau_accel_fini(drm);
278                 return;
279         }
280 
281         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
282                 ret = nvkm_gpuobj_new(nvxx_device(&drm->device), 32, 0, false,
283                                       NULL, &drm->notify);
284                 if (ret) {
285                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
286                         nouveau_accel_fini(drm);
287                         return;
288                 }
289 
290                 ret = nvif_object_init(&drm->channel->user, NvNotify0,
291                                        NV_DMA_IN_MEMORY,
292                                        &(struct nv_dma_v0) {
293                                                 .target = NV_DMA_V0_TARGET_VRAM,
294                                                 .access = NV_DMA_V0_ACCESS_RDWR,
295                                                 .start = drm->notify->addr,
296                                                 .limit = drm->notify->addr + 31
297                                        }, sizeof(struct nv_dma_v0),
298                                        &drm->ntfy);
299                 if (ret) {
300                         nouveau_accel_fini(drm);
301                         return;
302                 }
303         }
304 
305 
306         nouveau_bo_move_init(drm);
307 }
308 
309 static int nouveau_drm_probe(struct pci_dev *pdev,
310                              const struct pci_device_id *pent)
311 {
312         struct nvkm_device *device;
313         struct apertures_struct *aper;
314         bool boot = false;
315         int ret;
316 
317         if (vga_switcheroo_client_probe_defer(pdev))
318                 return -EPROBE_DEFER;
319 
320         /* We need to check that the chipset is supported before booting
321          * fbdev off the hardware, as there's no way to put it back.
322          */
323         ret = nvkm_device_pci_new(pdev, NULL, "error", true, false, 0, &device);
324         if (ret)
325                 return ret;
326 
327         nvkm_device_del(&device);
328 
329         /* Remove conflicting drivers (vesafb, efifb etc). */
330         aper = alloc_apertures(3);
331         if (!aper)
332                 return -ENOMEM;
333 
334         aper->ranges[0].base = pci_resource_start(pdev, 1);
335         aper->ranges[0].size = pci_resource_len(pdev, 1);
336         aper->count = 1;
337 
338         if (pci_resource_len(pdev, 2)) {
339                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
340                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
341                 aper->count++;
342         }
343 
344         if (pci_resource_len(pdev, 3)) {
345                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
346                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
347                 aper->count++;
348         }
349 
350 #ifdef CONFIG_X86
351         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
352 #endif
353         if (nouveau_modeset != 2)
354                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
355         kfree(aper);
356 
357         ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
358                                   true, true, ~0ULL, &device);
359         if (ret)
360                 return ret;
361 
362         pci_set_master(pdev);
363 
364         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
365         if (ret) {
366                 nvkm_device_del(&device);
367                 return ret;
368         }
369 
370         return 0;
371 }
372 
373 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
374 
375 static void
376 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
377 {
378         struct pci_dev *pdev = drm->dev->pdev;
379 
380         if (!pdev) {
381                 NV_DEBUG(drm, "not a PCI device; no HDMI\n");
382                 drm->hdmi_device = NULL;
383                 return;
384         }
385 
386         /* subfunction one is a hdmi audio device? */
387         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
388                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
389 
390         if (!drm->hdmi_device) {
391                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
392                 return;
393         }
394 
395         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
396                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
397                 pci_dev_put(drm->hdmi_device);
398                 drm->hdmi_device = NULL;
399                 return;
400         }
401 }
402 
403 static int
404 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
405 {
406         struct nouveau_drm *drm;
407         int ret;
408 
409         ret = nouveau_cli_create(dev, "DRM", sizeof(*drm), (void **)&drm);
410         if (ret)
411                 return ret;
412 
413         dev->dev_private = drm;
414         drm->dev = dev;
415         nvxx_client(&drm->client.base)->debug =
416                 nvkm_dbgopt(nouveau_debug, "DRM");
417 
418         INIT_LIST_HEAD(&drm->clients);
419         spin_lock_init(&drm->tile.lock);
420 
421         nouveau_get_hdmi_dev(drm);
422 
423         ret = nvif_device_init(&drm->client.base.object, 0, NV_DEVICE,
424                                &(struct nv_device_v0) {
425                                         .device = ~0,
426                                }, sizeof(struct nv_device_v0),
427                                &drm->device);
428         if (ret)
429                 goto fail_device;
430 
431         dev->irq_enabled = true;
432 
433         /* workaround an odd issue on nvc1 by disabling the device's
434          * nosnoop capability.  hopefully won't cause issues until a
435          * better fix is found - assuming there is one...
436          */
437         if (drm->device.info.chipset == 0xc1)
438                 nvif_mask(&drm->device.object, 0x00088080, 0x00000800, 0x00000000);
439 
440         nouveau_vga_init(drm);
441 
442         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
443                 if (!nvxx_device(&drm->device)->mmu) {
444                         ret = -ENOSYS;
445                         goto fail_device;
446                 }
447 
448                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
449                                   0x1000, NULL, &drm->client.vm);
450                 if (ret)
451                         goto fail_device;
452 
453                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
454         }
455 
456         ret = nouveau_ttm_init(drm);
457         if (ret)
458                 goto fail_ttm;
459 
460         ret = nouveau_bios_init(dev);
461         if (ret)
462                 goto fail_bios;
463 
464         ret = nouveau_display_create(dev);
465         if (ret)
466                 goto fail_dispctor;
467 
468         if (dev->mode_config.num_crtc) {
469                 ret = nouveau_display_init(dev);
470                 if (ret)
471                         goto fail_dispinit;
472         }
473 
474         nouveau_debugfs_init(drm);
475         nouveau_hwmon_init(dev);
476         nouveau_accel_init(drm);
477         nouveau_fbcon_init(dev);
478 
479         if (nouveau_runtime_pm != 0) {
480                 pm_runtime_use_autosuspend(dev->dev);
481                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
482                 pm_runtime_set_active(dev->dev);
483                 pm_runtime_allow(dev->dev);
484                 pm_runtime_mark_last_busy(dev->dev);
485                 pm_runtime_put(dev->dev);
486         }
487         return 0;
488 
489 fail_dispinit:
490         nouveau_display_destroy(dev);
491 fail_dispctor:
492         nouveau_bios_takedown(dev);
493 fail_bios:
494         nouveau_ttm_fini(drm);
495 fail_ttm:
496         nouveau_vga_fini(drm);
497 fail_device:
498         nvif_device_fini(&drm->device);
499         nouveau_cli_destroy(&drm->client);
500         return ret;
501 }
502 
503 static int
504 nouveau_drm_unload(struct drm_device *dev)
505 {
506         struct nouveau_drm *drm = nouveau_drm(dev);
507 
508         if (nouveau_runtime_pm != 0) {
509                 pm_runtime_get_sync(dev->dev);
510                 pm_runtime_forbid(dev->dev);
511         }
512 
513         nouveau_fbcon_fini(dev);
514         nouveau_accel_fini(drm);
515         nouveau_hwmon_fini(dev);
516         nouveau_debugfs_fini(drm);
517 
518         if (dev->mode_config.num_crtc)
519                 nouveau_display_fini(dev);
520         nouveau_display_destroy(dev);
521 
522         nouveau_bios_takedown(dev);
523 
524         nouveau_ttm_fini(drm);
525         nouveau_vga_fini(drm);
526 
527         nvif_device_fini(&drm->device);
528         if (drm->hdmi_device)
529                 pci_dev_put(drm->hdmi_device);
530         nouveau_cli_destroy(&drm->client);
531         return 0;
532 }
533 
534 void
535 nouveau_drm_device_remove(struct drm_device *dev)
536 {
537         struct nouveau_drm *drm = nouveau_drm(dev);
538         struct nvkm_client *client;
539         struct nvkm_device *device;
540 
541         dev->irq_enabled = false;
542         client = nvxx_client(&drm->client.base);
543         device = nvkm_device_find(client->device);
544         drm_put_dev(dev);
545 
546         nvkm_device_del(&device);
547 }
548 
549 static void
550 nouveau_drm_remove(struct pci_dev *pdev)
551 {
552         struct drm_device *dev = pci_get_drvdata(pdev);
553 
554         nouveau_drm_device_remove(dev);
555 }
556 
557 static int
558 nouveau_do_suspend(struct drm_device *dev, bool runtime)
559 {
560         struct nouveau_drm *drm = nouveau_drm(dev);
561         struct nouveau_cli *cli;
562         int ret;
563 
564         if (dev->mode_config.num_crtc) {
565                 NV_INFO(drm, "suspending console...\n");
566                 nouveau_fbcon_set_suspend(dev, 1);
567                 NV_INFO(drm, "suspending display...\n");
568                 ret = nouveau_display_suspend(dev, runtime);
569                 if (ret)
570                         return ret;
571         }
572 
573         NV_INFO(drm, "evicting buffers...\n");
574         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
575 
576         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
577         if (drm->cechan) {
578                 ret = nouveau_channel_idle(drm->cechan);
579                 if (ret)
580                         goto fail_display;
581         }
582 
583         if (drm->channel) {
584                 ret = nouveau_channel_idle(drm->channel);
585                 if (ret)
586                         goto fail_display;
587         }
588 
589         NV_INFO(drm, "suspending client object trees...\n");
590         if (drm->fence && nouveau_fence(drm)->suspend) {
591                 if (!nouveau_fence(drm)->suspend(drm)) {
592                         ret = -ENOMEM;
593                         goto fail_display;
594                 }
595         }
596 
597         list_for_each_entry(cli, &drm->clients, head) {
598                 ret = nvif_client_suspend(&cli->base);
599                 if (ret)
600                         goto fail_client;
601         }
602 
603         NV_INFO(drm, "suspending kernel object tree...\n");
604         ret = nvif_client_suspend(&drm->client.base);
605         if (ret)
606                 goto fail_client;
607 
608         return 0;
609 
610 fail_client:
611         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
612                 nvif_client_resume(&cli->base);
613         }
614 
615         if (drm->fence && nouveau_fence(drm)->resume)
616                 nouveau_fence(drm)->resume(drm);
617 
618 fail_display:
619         if (dev->mode_config.num_crtc) {
620                 NV_INFO(drm, "resuming display...\n");
621                 nouveau_display_resume(dev, runtime);
622         }
623         return ret;
624 }
625 
626 static int
627 nouveau_do_resume(struct drm_device *dev, bool runtime)
628 {
629         struct nouveau_drm *drm = nouveau_drm(dev);
630         struct nouveau_cli *cli;
631 
632         NV_INFO(drm, "resuming kernel object tree...\n");
633         nvif_client_resume(&drm->client.base);
634 
635         NV_INFO(drm, "resuming client object trees...\n");
636         if (drm->fence && nouveau_fence(drm)->resume)
637                 nouveau_fence(drm)->resume(drm);
638 
639         list_for_each_entry(cli, &drm->clients, head) {
640                 nvif_client_resume(&cli->base);
641         }
642 
643         nouveau_run_vbios_init(dev);
644 
645         if (dev->mode_config.num_crtc) {
646                 NV_INFO(drm, "resuming display...\n");
647                 nouveau_display_resume(dev, runtime);
648                 NV_INFO(drm, "resuming console...\n");
649                 nouveau_fbcon_set_suspend(dev, 0);
650         }
651 
652         return 0;
653 }
654 
655 int
656 nouveau_pmops_suspend(struct device *dev)
657 {
658         struct pci_dev *pdev = to_pci_dev(dev);
659         struct drm_device *drm_dev = pci_get_drvdata(pdev);
660         int ret;
661 
662         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
663             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
664                 return 0;
665 
666         ret = nouveau_do_suspend(drm_dev, false);
667         if (ret)
668                 return ret;
669 
670         pci_save_state(pdev);
671         pci_disable_device(pdev);
672         pci_set_power_state(pdev, PCI_D3hot);
673         udelay(200);
674         return 0;
675 }
676 
677 int
678 nouveau_pmops_resume(struct device *dev)
679 {
680         struct pci_dev *pdev = to_pci_dev(dev);
681         struct drm_device *drm_dev = pci_get_drvdata(pdev);
682         int ret;
683 
684         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
685             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
686                 return 0;
687 
688         pci_set_power_state(pdev, PCI_D0);
689         pci_restore_state(pdev);
690         ret = pci_enable_device(pdev);
691         if (ret)
692                 return ret;
693         pci_set_master(pdev);
694 
695         return nouveau_do_resume(drm_dev, false);
696 }
697 
698 static int
699 nouveau_pmops_freeze(struct device *dev)
700 {
701         struct pci_dev *pdev = to_pci_dev(dev);
702         struct drm_device *drm_dev = pci_get_drvdata(pdev);
703         return nouveau_do_suspend(drm_dev, false);
704 }
705 
706 static int
707 nouveau_pmops_thaw(struct device *dev)
708 {
709         struct pci_dev *pdev = to_pci_dev(dev);
710         struct drm_device *drm_dev = pci_get_drvdata(pdev);
711         return nouveau_do_resume(drm_dev, false);
712 }
713 
714 static int
715 nouveau_pmops_runtime_suspend(struct device *dev)
716 {
717         struct pci_dev *pdev = to_pci_dev(dev);
718         struct drm_device *drm_dev = pci_get_drvdata(pdev);
719         int ret;
720 
721         if (nouveau_runtime_pm == 0) {
722                 pm_runtime_forbid(dev);
723                 return -EBUSY;
724         }
725 
726         /* are we optimus enabled? */
727         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
728                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
729                 pm_runtime_forbid(dev);
730                 return -EBUSY;
731         }
732 
733         drm_kms_helper_poll_disable(drm_dev);
734         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
735         nouveau_switcheroo_optimus_dsm();
736         ret = nouveau_do_suspend(drm_dev, true);
737         pci_save_state(pdev);
738         pci_disable_device(pdev);
739         pci_ignore_hotplug(pdev);
740         pci_set_power_state(pdev, PCI_D3cold);
741         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
742         return ret;
743 }
744 
745 static int
746 nouveau_pmops_runtime_resume(struct device *dev)
747 {
748         struct pci_dev *pdev = to_pci_dev(dev);
749         struct drm_device *drm_dev = pci_get_drvdata(pdev);
750         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
751         int ret;
752 
753         if (nouveau_runtime_pm == 0)
754                 return -EINVAL;
755 
756         pci_set_power_state(pdev, PCI_D0);
757         pci_restore_state(pdev);
758         ret = pci_enable_device(pdev);
759         if (ret)
760                 return ret;
761         pci_set_master(pdev);
762 
763         ret = nouveau_do_resume(drm_dev, true);
764         drm_kms_helper_poll_enable(drm_dev);
765         /* do magic */
766         nvif_mask(&device->object, 0x088488, (1 << 25), (1 << 25));
767         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
768         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
769         return ret;
770 }
771 
772 static int
773 nouveau_pmops_runtime_idle(struct device *dev)
774 {
775         struct pci_dev *pdev = to_pci_dev(dev);
776         struct drm_device *drm_dev = pci_get_drvdata(pdev);
777         struct nouveau_drm *drm = nouveau_drm(drm_dev);
778         struct drm_crtc *crtc;
779 
780         if (nouveau_runtime_pm == 0) {
781                 pm_runtime_forbid(dev);
782                 return -EBUSY;
783         }
784 
785         /* are we optimus enabled? */
786         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
787                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
788                 pm_runtime_forbid(dev);
789                 return -EBUSY;
790         }
791 
792         /* if we have a hdmi audio device - make sure it has a driver loaded */
793         if (drm->hdmi_device) {
794                 if (!drm->hdmi_device->driver) {
795                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
796                         pm_runtime_mark_last_busy(dev);
797                         return -EBUSY;
798                 }
799         }
800 
801         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
802                 if (crtc->enabled) {
803                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
804                         return -EBUSY;
805                 }
806         }
807         pm_runtime_mark_last_busy(dev);
808         pm_runtime_autosuspend(dev);
809         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
810         return 1;
811 }
812 
813 static int
814 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
815 {
816         struct nouveau_drm *drm = nouveau_drm(dev);
817         struct nouveau_cli *cli;
818         char name[32], tmpname[TASK_COMM_LEN];
819         int ret;
820 
821         /* need to bring up power immediately if opening device */
822         ret = pm_runtime_get_sync(dev->dev);
823         if (ret < 0 && ret != -EACCES)
824                 return ret;
825 
826         get_task_comm(tmpname, current);
827         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
828 
829         ret = nouveau_cli_create(dev, name, sizeof(*cli), (void **)&cli);
830 
831         if (ret)
832                 goto out_suspend;
833 
834         cli->base.super = false;
835 
836         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
837                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
838                                   0x1000, NULL, &cli->vm);
839                 if (ret) {
840                         nouveau_cli_destroy(cli);
841                         goto out_suspend;
842                 }
843 
844                 nvxx_client(&cli->base)->vm = cli->vm;
845         }
846 
847         fpriv->driver_priv = cli;
848 
849         mutex_lock(&drm->client.mutex);
850         list_add(&cli->head, &drm->clients);
851         mutex_unlock(&drm->client.mutex);
852 
853 out_suspend:
854         pm_runtime_mark_last_busy(dev->dev);
855         pm_runtime_put_autosuspend(dev->dev);
856 
857         return ret;
858 }
859 
860 static void
861 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
862 {
863         struct nouveau_cli *cli = nouveau_cli(fpriv);
864         struct nouveau_drm *drm = nouveau_drm(dev);
865 
866         pm_runtime_get_sync(dev->dev);
867 
868         mutex_lock(&cli->mutex);
869         if (cli->abi16)
870                 nouveau_abi16_fini(cli->abi16);
871         mutex_unlock(&cli->mutex);
872 
873         mutex_lock(&drm->client.mutex);
874         list_del(&cli->head);
875         mutex_unlock(&drm->client.mutex);
876 
877 }
878 
879 static void
880 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
881 {
882         struct nouveau_cli *cli = nouveau_cli(fpriv);
883         nouveau_cli_destroy(cli);
884         pm_runtime_mark_last_busy(dev->dev);
885         pm_runtime_put_autosuspend(dev->dev);
886 }
887 
888 static const struct drm_ioctl_desc
889 nouveau_ioctls[] = {
890         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_AUTH|DRM_RENDER_ALLOW),
891         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
892         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
893         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_AUTH|DRM_RENDER_ALLOW),
894         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
895         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_AUTH|DRM_RENDER_ALLOW),
896         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_AUTH|DRM_RENDER_ALLOW),
897         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_AUTH|DRM_RENDER_ALLOW),
898         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_AUTH|DRM_RENDER_ALLOW),
899         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_AUTH|DRM_RENDER_ALLOW),
900         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_AUTH|DRM_RENDER_ALLOW),
901         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_AUTH|DRM_RENDER_ALLOW),
902 };
903 
904 long
905 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
906 {
907         struct drm_file *filp = file->private_data;
908         struct drm_device *dev = filp->minor->dev;
909         long ret;
910 
911         ret = pm_runtime_get_sync(dev->dev);
912         if (ret < 0 && ret != -EACCES)
913                 return ret;
914 
915         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
916         case DRM_NOUVEAU_NVIF:
917                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
918                 break;
919         default:
920                 ret = drm_ioctl(file, cmd, arg);
921                 break;
922         }
923 
924         pm_runtime_mark_last_busy(dev->dev);
925         pm_runtime_put_autosuspend(dev->dev);
926         return ret;
927 }
928 
929 static const struct file_operations
930 nouveau_driver_fops = {
931         .owner = THIS_MODULE,
932         .open = drm_open,
933         .release = drm_release,
934         .unlocked_ioctl = nouveau_drm_ioctl,
935         .mmap = nouveau_ttm_mmap,
936         .poll = drm_poll,
937         .read = drm_read,
938 #if defined(CONFIG_COMPAT)
939         .compat_ioctl = nouveau_compat_ioctl,
940 #endif
941         .llseek = noop_llseek,
942 };
943 
944 static struct drm_driver
945 driver_stub = {
946         .driver_features =
947                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER |
948                 DRIVER_KMS_LEGACY_CONTEXT,
949 
950         .load = nouveau_drm_load,
951         .unload = nouveau_drm_unload,
952         .open = nouveau_drm_open,
953         .preclose = nouveau_drm_preclose,
954         .postclose = nouveau_drm_postclose,
955         .lastclose = nouveau_vga_lastclose,
956 
957 #if defined(CONFIG_DEBUG_FS)
958         .debugfs_init = nouveau_drm_debugfs_init,
959         .debugfs_cleanup = nouveau_drm_debugfs_cleanup,
960 #endif
961 
962         .get_vblank_counter = drm_vblank_no_hw_counter,
963         .enable_vblank = nouveau_display_vblank_enable,
964         .disable_vblank = nouveau_display_vblank_disable,
965         .get_scanout_position = nouveau_display_scanoutpos,
966         .get_vblank_timestamp = nouveau_display_vblstamp,
967 
968         .ioctls = nouveau_ioctls,
969         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
970         .fops = &nouveau_driver_fops,
971 
972         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
973         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
974         .gem_prime_export = drm_gem_prime_export,
975         .gem_prime_import = drm_gem_prime_import,
976         .gem_prime_pin = nouveau_gem_prime_pin,
977         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
978         .gem_prime_unpin = nouveau_gem_prime_unpin,
979         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
980         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
981         .gem_prime_vmap = nouveau_gem_prime_vmap,
982         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
983 
984         .gem_free_object_unlocked = nouveau_gem_object_del,
985         .gem_open_object = nouveau_gem_object_open,
986         .gem_close_object = nouveau_gem_object_close,
987 
988         .dumb_create = nouveau_display_dumb_create,
989         .dumb_map_offset = nouveau_display_dumb_map_offset,
990         .dumb_destroy = drm_gem_dumb_destroy,
991 
992         .name = DRIVER_NAME,
993         .desc = DRIVER_DESC,
994 #ifdef GIT_REVISION
995         .date = GIT_REVISION,
996 #else
997         .date = DRIVER_DATE,
998 #endif
999         .major = DRIVER_MAJOR,
1000         .minor = DRIVER_MINOR,
1001         .patchlevel = DRIVER_PATCHLEVEL,
1002 };
1003 
1004 static struct pci_device_id
1005 nouveau_drm_pci_table[] = {
1006         {
1007                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1008                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1009                 .class_mask  = 0xff << 16,
1010         },
1011         {
1012                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1013                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1014                 .class_mask  = 0xff << 16,
1015         },
1016         {}
1017 };
1018 
1019 static void nouveau_display_options(void)
1020 {
1021         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1022 
1023         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1024         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1025         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1026         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1027         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1028         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1029         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1030         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1031         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1032         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1033 }
1034 
1035 static const struct dev_pm_ops nouveau_pm_ops = {
1036         .suspend = nouveau_pmops_suspend,
1037         .resume = nouveau_pmops_resume,
1038         .freeze = nouveau_pmops_freeze,
1039         .thaw = nouveau_pmops_thaw,
1040         .poweroff = nouveau_pmops_freeze,
1041         .restore = nouveau_pmops_resume,
1042         .runtime_suspend = nouveau_pmops_runtime_suspend,
1043         .runtime_resume = nouveau_pmops_runtime_resume,
1044         .runtime_idle = nouveau_pmops_runtime_idle,
1045 };
1046 
1047 static struct pci_driver
1048 nouveau_drm_pci_driver = {
1049         .name = "nouveau",
1050         .id_table = nouveau_drm_pci_table,
1051         .probe = nouveau_drm_probe,
1052         .remove = nouveau_drm_remove,
1053         .driver.pm = &nouveau_pm_ops,
1054 };
1055 
1056 struct drm_device *
1057 nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
1058                                struct platform_device *pdev,
1059                                struct nvkm_device **pdevice)
1060 {
1061         struct drm_device *drm;
1062         int err;
1063 
1064         err = nvkm_device_tegra_new(func, pdev, nouveau_config, nouveau_debug,
1065                                     true, true, ~0ULL, pdevice);
1066         if (err)
1067                 goto err_free;
1068 
1069         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1070         if (!drm) {
1071                 err = -ENOMEM;
1072                 goto err_free;
1073         }
1074 
1075         drm->platformdev = pdev;
1076         platform_set_drvdata(pdev, drm);
1077 
1078         return drm;
1079 
1080 err_free:
1081         nvkm_device_del(pdevice);
1082 
1083         return ERR_PTR(err);
1084 }
1085 
1086 static int __init
1087 nouveau_drm_init(void)
1088 {
1089         driver_pci = driver_stub;
1090         driver_pci.set_busid = drm_pci_set_busid;
1091         driver_platform = driver_stub;
1092 
1093         nouveau_display_options();
1094 
1095         if (nouveau_modeset == -1) {
1096                 if (vgacon_text_force())
1097                         nouveau_modeset = 0;
1098         }
1099 
1100         if (!nouveau_modeset)
1101                 return 0;
1102 
1103 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1104         platform_driver_register(&nouveau_platform_driver);
1105 #endif
1106 
1107         nouveau_register_dsm_handler();
1108         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1109 }
1110 
1111 static void __exit
1112 nouveau_drm_exit(void)
1113 {
1114         if (!nouveau_modeset)
1115                 return;
1116 
1117         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1118         nouveau_unregister_dsm_handler();
1119 
1120 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1121         platform_driver_unregister(&nouveau_platform_driver);
1122 #endif
1123 }
1124 
1125 module_init(nouveau_drm_init);
1126 module_exit(nouveau_drm_exit);
1127 
1128 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1129 MODULE_AUTHOR(DRIVER_AUTHOR);
1130 MODULE_DESCRIPTION(DRIVER_DESC);
1131 MODULE_LICENSE("GPL and additional rights");
1132 

This page was automatically generated by LXR 0.3.1 (source).  •  Linux is a registered trademark of Linus Torvalds  •  Contact us