Version:  2.0.40 2.2.26 2.4.37 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 4.0 4.1

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 #include "nouveau_platform.h"
 56 
 57 MODULE_PARM_DESC(config, "option string to pass to driver core");
 58 static char *nouveau_config;
 59 module_param_named(config, nouveau_config, charp, 0400);
 60 
 61 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
 62 static char *nouveau_debug;
 63 module_param_named(debug, nouveau_debug, charp, 0400);
 64 
 65 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
 66 static int nouveau_noaccel = 0;
 67 module_param_named(noaccel, nouveau_noaccel, int, 0400);
 68 
 69 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
 70                           "0 = disabled, 1 = enabled, 2 = headless)");
 71 int nouveau_modeset = -1;
 72 module_param_named(modeset, nouveau_modeset, int, 0400);
 73 
 74 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
 75 int nouveau_runtime_pm = -1;
 76 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
 77 
 78 static struct drm_driver driver_stub;
 79 static struct drm_driver driver_pci;
 80 static struct drm_driver driver_platform;
 81 
 82 static u64
 83 nouveau_pci_name(struct pci_dev *pdev)
 84 {
 85         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
 86         name |= pdev->bus->number << 16;
 87         name |= PCI_SLOT(pdev->devfn) << 8;
 88         return name | PCI_FUNC(pdev->devfn);
 89 }
 90 
 91 static u64
 92 nouveau_platform_name(struct platform_device *platformdev)
 93 {
 94         return platformdev->id;
 95 }
 96 
 97 static u64
 98 nouveau_name(struct drm_device *dev)
 99 {
100         if (dev->pdev)
101                 return nouveau_pci_name(dev->pdev);
102         else
103                 return nouveau_platform_name(dev->platformdev);
104 }
105 
106 static int
107 nouveau_cli_create(u64 name, const char *sname,
108                    int size, void **pcli)
109 {
110         struct nouveau_cli *cli = *pcli = kzalloc(size, GFP_KERNEL);
111         if (cli) {
112                 int ret = nvif_client_init(NULL, NULL, sname, name,
113                                            nouveau_config, nouveau_debug,
114                                           &cli->base);
115                 if (ret == 0) {
116                         mutex_init(&cli->mutex);
117                         usif_client_init(cli);
118                 }
119                 return ret;
120         }
121         return -ENOMEM;
122 }
123 
124 static void
125 nouveau_cli_destroy(struct nouveau_cli *cli)
126 {
127         nvkm_vm_ref(NULL, &nvxx_client(&cli->base)->vm, NULL);
128         nvif_client_fini(&cli->base);
129         usif_client_fini(cli);
130 }
131 
132 static void
133 nouveau_accel_fini(struct nouveau_drm *drm)
134 {
135         nouveau_channel_del(&drm->channel);
136         nvif_object_fini(&drm->ntfy);
137         nvkm_gpuobj_ref(NULL, &drm->notify);
138         nvif_object_fini(&drm->nvsw);
139         nouveau_channel_del(&drm->cechan);
140         nvif_object_fini(&drm->ttm.copy);
141         if (drm->fence)
142                 nouveau_fence(drm)->dtor(drm);
143 }
144 
145 static void
146 nouveau_accel_init(struct nouveau_drm *drm)
147 {
148         struct nvif_device *device = &drm->device;
149         u32 arg0, arg1;
150         u32 sclass[16];
151         int ret, i;
152 
153         if (nouveau_noaccel)
154                 return;
155 
156         /* initialise synchronisation routines */
157         /*XXX: this is crap, but the fence/channel stuff is a little
158          *     backwards in some places.  this will be fixed.
159          */
160         ret = nvif_object_sclass(&device->base, sclass, ARRAY_SIZE(sclass));
161         if (ret < 0)
162                 return;
163 
164         for (ret = -ENOSYS, i = 0; ret && i < ARRAY_SIZE(sclass); i++) {
165                 switch (sclass[i]) {
166                 case NV03_CHANNEL_DMA:
167                         ret = nv04_fence_create(drm);
168                         break;
169                 case NV10_CHANNEL_DMA:
170                         ret = nv10_fence_create(drm);
171                         break;
172                 case NV17_CHANNEL_DMA:
173                 case NV40_CHANNEL_DMA:
174                         ret = nv17_fence_create(drm);
175                         break;
176                 case NV50_CHANNEL_GPFIFO:
177                         ret = nv50_fence_create(drm);
178                         break;
179                 case G82_CHANNEL_GPFIFO:
180                         ret = nv84_fence_create(drm);
181                         break;
182                 case FERMI_CHANNEL_GPFIFO:
183                 case KEPLER_CHANNEL_GPFIFO_A:
184                 case MAXWELL_CHANNEL_GPFIFO_A:
185                         ret = nvc0_fence_create(drm);
186                         break;
187                 default:
188                         break;
189                 }
190         }
191 
192         if (ret) {
193                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
194                 nouveau_accel_fini(drm);
195                 return;
196         }
197 
198         if (device->info.family >= NV_DEVICE_INFO_V0_KEPLER) {
199                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
200                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE0|
201                                           KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_CE1,
202                                           0, &drm->cechan);
203                 if (ret)
204                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
205 
206                 arg0 = KEPLER_CHANNEL_GPFIFO_A_V0_ENGINE_GR;
207                 arg1 = 1;
208         } else
209         if (device->info.chipset >= 0xa3 &&
210             device->info.chipset != 0xaa &&
211             device->info.chipset != 0xac) {
212                 ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN + 1,
213                                           NvDmaFB, NvDmaTT, &drm->cechan);
214                 if (ret)
215                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
216 
217                 arg0 = NvDmaFB;
218                 arg1 = NvDmaTT;
219         } else {
220                 arg0 = NvDmaFB;
221                 arg1 = NvDmaTT;
222         }
223 
224         ret = nouveau_channel_new(drm, &drm->device, NVDRM_CHAN, arg0, arg1,
225                                  &drm->channel);
226         if (ret) {
227                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
228                 nouveau_accel_fini(drm);
229                 return;
230         }
231 
232         ret = nvif_object_init(drm->channel->object, NULL, NVDRM_NVSW,
233                                nouveau_abi16_swclass(drm), NULL, 0, &drm->nvsw);
234         if (ret == 0) {
235                 struct nvkm_sw_chan *swch;
236                 ret = RING_SPACE(drm->channel, 2);
237                 if (ret == 0) {
238                         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
239                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
240                                 OUT_RING  (drm->channel, NVDRM_NVSW);
241                         } else
242                         if (device->info.family < NV_DEVICE_INFO_V0_KEPLER) {
243                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
244                                 OUT_RING  (drm->channel, 0x001f0000);
245                         }
246                 }
247                 swch = (void *)nvxx_object(&drm->nvsw)->parent;
248                 swch->flip = nouveau_flip_complete;
249                 swch->flip_data = drm->channel;
250         }
251 
252         if (ret) {
253                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
254                 nouveau_accel_fini(drm);
255                 return;
256         }
257 
258         if (device->info.family < NV_DEVICE_INFO_V0_FERMI) {
259                 ret = nvkm_gpuobj_new(nvxx_object(&drm->device), NULL, 32,
260                                       0, 0, &drm->notify);
261                 if (ret) {
262                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
263                         nouveau_accel_fini(drm);
264                         return;
265                 }
266 
267                 ret = nvif_object_init(drm->channel->object, NULL, NvNotify0,
268                                        NV_DMA_IN_MEMORY,
269                                        &(struct nv_dma_v0) {
270                                                 .target = NV_DMA_V0_TARGET_VRAM,
271                                                 .access = NV_DMA_V0_ACCESS_RDWR,
272                                                 .start = drm->notify->addr,
273                                                 .limit = drm->notify->addr + 31
274                                        }, sizeof(struct nv_dma_v0),
275                                        &drm->ntfy);
276                 if (ret) {
277                         nouveau_accel_fini(drm);
278                         return;
279                 }
280         }
281 
282 
283         nouveau_bo_move_init(drm);
284 }
285 
286 static int nouveau_drm_probe(struct pci_dev *pdev,
287                              const struct pci_device_id *pent)
288 {
289         struct nvkm_device *device;
290         struct apertures_struct *aper;
291         bool boot = false;
292         int ret;
293 
294         /* remove conflicting drivers (vesafb, efifb etc) */
295         aper = alloc_apertures(3);
296         if (!aper)
297                 return -ENOMEM;
298 
299         aper->ranges[0].base = pci_resource_start(pdev, 1);
300         aper->ranges[0].size = pci_resource_len(pdev, 1);
301         aper->count = 1;
302 
303         if (pci_resource_len(pdev, 2)) {
304                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
305                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
306                 aper->count++;
307         }
308 
309         if (pci_resource_len(pdev, 3)) {
310                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
311                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
312                 aper->count++;
313         }
314 
315 #ifdef CONFIG_X86
316         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
317 #endif
318         if (nouveau_modeset != 2)
319                 remove_conflicting_framebuffers(aper, "nouveaufb", boot);
320         kfree(aper);
321 
322         ret = nvkm_device_create(pdev, NVKM_BUS_PCI,
323                                  nouveau_pci_name(pdev), pci_name(pdev),
324                                  nouveau_config, nouveau_debug, &device);
325         if (ret)
326                 return ret;
327 
328         pci_set_master(pdev);
329 
330         ret = drm_get_pci_dev(pdev, pent, &driver_pci);
331         if (ret) {
332                 nvkm_object_ref(NULL, (struct nvkm_object **)&device);
333                 return ret;
334         }
335 
336         return 0;
337 }
338 
339 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
340 
341 static void
342 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
343 {
344         struct pci_dev *pdev = drm->dev->pdev;
345 
346         if (!pdev) {
347                 DRM_INFO("not a PCI device; no HDMI\n");
348                 drm->hdmi_device = NULL;
349                 return;
350         }
351 
352         /* subfunction one is a hdmi audio device? */
353         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
354                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
355 
356         if (!drm->hdmi_device) {
357                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
358                 return;
359         }
360 
361         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
362                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
363                 pci_dev_put(drm->hdmi_device);
364                 drm->hdmi_device = NULL;
365                 return;
366         }
367 }
368 
369 static int
370 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
371 {
372         struct pci_dev *pdev = dev->pdev;
373         struct nouveau_drm *drm;
374         int ret;
375 
376         ret = nouveau_cli_create(nouveau_name(dev), "DRM", sizeof(*drm),
377                                  (void **)&drm);
378         if (ret)
379                 return ret;
380 
381         dev->dev_private = drm;
382         drm->dev = dev;
383         nvxx_client(&drm->client.base)->debug =
384                 nvkm_dbgopt(nouveau_debug, "DRM");
385 
386         INIT_LIST_HEAD(&drm->clients);
387         spin_lock_init(&drm->tile.lock);
388 
389         nouveau_get_hdmi_dev(drm);
390 
391         /* make sure AGP controller is in a consistent state before we
392          * (possibly) execute vbios init tables (see nouveau_agp.h)
393          */
394         if (pdev && drm_pci_device_is_agp(dev) && dev->agp) {
395                 const u64 enables = NV_DEVICE_V0_DISABLE_IDENTIFY |
396                                     NV_DEVICE_V0_DISABLE_MMIO;
397                 /* dummy device object, doesn't init anything, but allows
398                  * agp code access to registers
399                  */
400                 ret = nvif_device_init(&drm->client.base.base, NULL,
401                                        NVDRM_DEVICE, NV_DEVICE,
402                                        &(struct nv_device_v0) {
403                                                 .device = ~0,
404                                                 .disable = ~enables,
405                                                 .debug0 = ~0,
406                                        }, sizeof(struct nv_device_v0),
407                                        &drm->device);
408                 if (ret)
409                         goto fail_device;
410 
411                 nouveau_agp_reset(drm);
412                 nvif_device_fini(&drm->device);
413         }
414 
415         ret = nvif_device_init(&drm->client.base.base, NULL, NVDRM_DEVICE,
416                                NV_DEVICE,
417                                &(struct nv_device_v0) {
418                                         .device = ~0,
419                                         .disable = 0,
420                                         .debug0 = 0,
421                                }, sizeof(struct nv_device_v0),
422                                &drm->device);
423         if (ret)
424                 goto fail_device;
425 
426         dev->irq_enabled = true;
427 
428         /* workaround an odd issue on nvc1 by disabling the device's
429          * nosnoop capability.  hopefully won't cause issues until a
430          * better fix is found - assuming there is one...
431          */
432         if (drm->device.info.chipset == 0xc1)
433                 nvif_mask(&drm->device, 0x00088080, 0x00000800, 0x00000000);
434 
435         nouveau_vga_init(drm);
436         nouveau_agp_init(drm);
437 
438         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
439                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
440                                   0x1000, &drm->client.vm);
441                 if (ret)
442                         goto fail_device;
443 
444                 nvxx_client(&drm->client.base)->vm = drm->client.vm;
445         }
446 
447         ret = nouveau_ttm_init(drm);
448         if (ret)
449                 goto fail_ttm;
450 
451         ret = nouveau_bios_init(dev);
452         if (ret)
453                 goto fail_bios;
454 
455         ret = nouveau_display_create(dev);
456         if (ret)
457                 goto fail_dispctor;
458 
459         if (dev->mode_config.num_crtc) {
460                 ret = nouveau_display_init(dev);
461                 if (ret)
462                         goto fail_dispinit;
463         }
464 
465         nouveau_sysfs_init(dev);
466         nouveau_hwmon_init(dev);
467         nouveau_accel_init(drm);
468         nouveau_fbcon_init(dev);
469 
470         if (nouveau_runtime_pm != 0) {
471                 pm_runtime_use_autosuspend(dev->dev);
472                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
473                 pm_runtime_set_active(dev->dev);
474                 pm_runtime_allow(dev->dev);
475                 pm_runtime_mark_last_busy(dev->dev);
476                 pm_runtime_put(dev->dev);
477         }
478         return 0;
479 
480 fail_dispinit:
481         nouveau_display_destroy(dev);
482 fail_dispctor:
483         nouveau_bios_takedown(dev);
484 fail_bios:
485         nouveau_ttm_fini(drm);
486 fail_ttm:
487         nouveau_agp_fini(drm);
488         nouveau_vga_fini(drm);
489 fail_device:
490         nvif_device_fini(&drm->device);
491         nouveau_cli_destroy(&drm->client);
492         return ret;
493 }
494 
495 static int
496 nouveau_drm_unload(struct drm_device *dev)
497 {
498         struct nouveau_drm *drm = nouveau_drm(dev);
499 
500         pm_runtime_get_sync(dev->dev);
501         nouveau_fbcon_fini(dev);
502         nouveau_accel_fini(drm);
503         nouveau_hwmon_fini(dev);
504         nouveau_sysfs_fini(dev);
505 
506         if (dev->mode_config.num_crtc)
507                 nouveau_display_fini(dev);
508         nouveau_display_destroy(dev);
509 
510         nouveau_bios_takedown(dev);
511 
512         nouveau_ttm_fini(drm);
513         nouveau_agp_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_object *device;
529 
530         dev->irq_enabled = false;
531         client = nvxx_client(&drm->client.base);
532         device = client->device;
533         drm_put_dev(dev);
534 
535         nvkm_object_ref(NULL, &device);
536         nvkm_object_debug();
537 }
538 
539 static void
540 nouveau_drm_remove(struct pci_dev *pdev)
541 {
542         struct drm_device *dev = pci_get_drvdata(pdev);
543 
544         nouveau_drm_device_remove(dev);
545 }
546 
547 static int
548 nouveau_do_suspend(struct drm_device *dev, bool runtime)
549 {
550         struct nouveau_drm *drm = nouveau_drm(dev);
551         struct nouveau_cli *cli;
552         int ret;
553 
554         if (dev->mode_config.num_crtc) {
555                 NV_INFO(drm, "suspending console...\n");
556                 nouveau_fbcon_set_suspend(dev, 1);
557                 NV_INFO(drm, "suspending display...\n");
558                 ret = nouveau_display_suspend(dev, runtime);
559                 if (ret)
560                         return ret;
561         }
562 
563         NV_INFO(drm, "evicting buffers...\n");
564         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
565 
566         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
567         if (drm->cechan) {
568                 ret = nouveau_channel_idle(drm->cechan);
569                 if (ret)
570                         goto fail_display;
571         }
572 
573         if (drm->channel) {
574                 ret = nouveau_channel_idle(drm->channel);
575                 if (ret)
576                         goto fail_display;
577         }
578 
579         NV_INFO(drm, "suspending client object trees...\n");
580         if (drm->fence && nouveau_fence(drm)->suspend) {
581                 if (!nouveau_fence(drm)->suspend(drm)) {
582                         ret = -ENOMEM;
583                         goto fail_display;
584                 }
585         }
586 
587         list_for_each_entry(cli, &drm->clients, head) {
588                 ret = nvif_client_suspend(&cli->base);
589                 if (ret)
590                         goto fail_client;
591         }
592 
593         NV_INFO(drm, "suspending kernel object tree...\n");
594         ret = nvif_client_suspend(&drm->client.base);
595         if (ret)
596                 goto fail_client;
597 
598         nouveau_agp_fini(drm);
599         return 0;
600 
601 fail_client:
602         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
603                 nvif_client_resume(&cli->base);
604         }
605 
606         if (drm->fence && nouveau_fence(drm)->resume)
607                 nouveau_fence(drm)->resume(drm);
608 
609 fail_display:
610         if (dev->mode_config.num_crtc) {
611                 NV_INFO(drm, "resuming display...\n");
612                 nouveau_display_resume(dev, runtime);
613         }
614         return ret;
615 }
616 
617 static int
618 nouveau_do_resume(struct drm_device *dev, bool runtime)
619 {
620         struct nouveau_drm *drm = nouveau_drm(dev);
621         struct nouveau_cli *cli;
622 
623         NV_INFO(drm, "re-enabling device...\n");
624 
625         nouveau_agp_reset(drm);
626 
627         NV_INFO(drm, "resuming kernel object tree...\n");
628         nvif_client_resume(&drm->client.base);
629         nouveau_agp_init(drm);
630 
631         NV_INFO(drm, "resuming client object trees...\n");
632         if (drm->fence && nouveau_fence(drm)->resume)
633                 nouveau_fence(drm)->resume(drm);
634 
635         list_for_each_entry(cli, &drm->clients, head) {
636                 nvif_client_resume(&cli->base);
637         }
638 
639         nouveau_run_vbios_init(dev);
640 
641         if (dev->mode_config.num_crtc) {
642                 NV_INFO(drm, "resuming display...\n");
643                 nouveau_display_resume(dev, runtime);
644                 NV_INFO(drm, "resuming console...\n");
645                 nouveau_fbcon_set_suspend(dev, 0);
646         }
647 
648         return 0;
649 }
650 
651 int
652 nouveau_pmops_suspend(struct device *dev)
653 {
654         struct pci_dev *pdev = to_pci_dev(dev);
655         struct drm_device *drm_dev = pci_get_drvdata(pdev);
656         int ret;
657 
658         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
659             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
660                 return 0;
661 
662         ret = nouveau_do_suspend(drm_dev, false);
663         if (ret)
664                 return ret;
665 
666         pci_save_state(pdev);
667         pci_disable_device(pdev);
668         pci_set_power_state(pdev, PCI_D3hot);
669         return 0;
670 }
671 
672 int
673 nouveau_pmops_resume(struct device *dev)
674 {
675         struct pci_dev *pdev = to_pci_dev(dev);
676         struct drm_device *drm_dev = pci_get_drvdata(pdev);
677         int ret;
678 
679         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
680             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
681                 return 0;
682 
683         pci_set_power_state(pdev, PCI_D0);
684         pci_restore_state(pdev);
685         ret = pci_enable_device(pdev);
686         if (ret)
687                 return ret;
688         pci_set_master(pdev);
689 
690         return nouveau_do_resume(drm_dev, false);
691 }
692 
693 static int
694 nouveau_pmops_freeze(struct device *dev)
695 {
696         struct pci_dev *pdev = to_pci_dev(dev);
697         struct drm_device *drm_dev = pci_get_drvdata(pdev);
698         return nouveau_do_suspend(drm_dev, false);
699 }
700 
701 static int
702 nouveau_pmops_thaw(struct device *dev)
703 {
704         struct pci_dev *pdev = to_pci_dev(dev);
705         struct drm_device *drm_dev = pci_get_drvdata(pdev);
706         return nouveau_do_resume(drm_dev, false);
707 }
708 
709 static int
710 nouveau_pmops_runtime_suspend(struct device *dev)
711 {
712         struct pci_dev *pdev = to_pci_dev(dev);
713         struct drm_device *drm_dev = pci_get_drvdata(pdev);
714         int ret;
715 
716         if (nouveau_runtime_pm == 0) {
717                 pm_runtime_forbid(dev);
718                 return -EBUSY;
719         }
720 
721         /* are we optimus enabled? */
722         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
723                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
724                 pm_runtime_forbid(dev);
725                 return -EBUSY;
726         }
727 
728         nv_debug_level(SILENT);
729         drm_kms_helper_poll_disable(drm_dev);
730         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
731         nouveau_switcheroo_optimus_dsm();
732         ret = nouveau_do_suspend(drm_dev, true);
733         pci_save_state(pdev);
734         pci_disable_device(pdev);
735         pci_ignore_hotplug(pdev);
736         pci_set_power_state(pdev, PCI_D3cold);
737         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
738         return ret;
739 }
740 
741 static int
742 nouveau_pmops_runtime_resume(struct device *dev)
743 {
744         struct pci_dev *pdev = to_pci_dev(dev);
745         struct drm_device *drm_dev = pci_get_drvdata(pdev);
746         struct nvif_device *device = &nouveau_drm(drm_dev)->device;
747         int ret;
748 
749         if (nouveau_runtime_pm == 0)
750                 return -EINVAL;
751 
752         pci_set_power_state(pdev, PCI_D0);
753         pci_restore_state(pdev);
754         ret = pci_enable_device(pdev);
755         if (ret)
756                 return ret;
757         pci_set_master(pdev);
758 
759         ret = nouveau_do_resume(drm_dev, true);
760         drm_kms_helper_poll_enable(drm_dev);
761         /* do magic */
762         nvif_mask(device, 0x88488, (1 << 25), (1 << 25));
763         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
764         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
765         nv_debug_level(NORMAL);
766         return ret;
767 }
768 
769 static int
770 nouveau_pmops_runtime_idle(struct device *dev)
771 {
772         struct pci_dev *pdev = to_pci_dev(dev);
773         struct drm_device *drm_dev = pci_get_drvdata(pdev);
774         struct nouveau_drm *drm = nouveau_drm(drm_dev);
775         struct drm_crtc *crtc;
776 
777         if (nouveau_runtime_pm == 0) {
778                 pm_runtime_forbid(dev);
779                 return -EBUSY;
780         }
781 
782         /* are we optimus enabled? */
783         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
784                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
785                 pm_runtime_forbid(dev);
786                 return -EBUSY;
787         }
788 
789         /* if we have a hdmi audio device - make sure it has a driver loaded */
790         if (drm->hdmi_device) {
791                 if (!drm->hdmi_device->driver) {
792                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
793                         pm_runtime_mark_last_busy(dev);
794                         return -EBUSY;
795                 }
796         }
797 
798         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
799                 if (crtc->enabled) {
800                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
801                         return -EBUSY;
802                 }
803         }
804         pm_runtime_mark_last_busy(dev);
805         pm_runtime_autosuspend(dev);
806         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
807         return 1;
808 }
809 
810 static int
811 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
812 {
813         struct nouveau_drm *drm = nouveau_drm(dev);
814         struct nouveau_cli *cli;
815         char name[32], tmpname[TASK_COMM_LEN];
816         int ret;
817 
818         /* need to bring up power immediately if opening device */
819         ret = pm_runtime_get_sync(dev->dev);
820         if (ret < 0 && ret != -EACCES)
821                 return ret;
822 
823         get_task_comm(tmpname, current);
824         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
825 
826         ret = nouveau_cli_create(nouveau_name(dev), name, sizeof(*cli),
827                         (void **)&cli);
828 
829         if (ret)
830                 goto out_suspend;
831 
832         cli->base.super = false;
833 
834         if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
835                 ret = nvkm_vm_new(nvxx_device(&drm->device), 0, (1ULL << 40),
836                                   0x1000, &cli->vm);
837                 if (ret) {
838                         nouveau_cli_destroy(cli);
839                         goto out_suspend;
840                 }
841 
842                 nvxx_client(&cli->base)->vm = cli->vm;
843         }
844 
845         fpriv->driver_priv = cli;
846 
847         mutex_lock(&drm->client.mutex);
848         list_add(&cli->head, &drm->clients);
849         mutex_unlock(&drm->client.mutex);
850 
851 out_suspend:
852         pm_runtime_mark_last_busy(dev->dev);
853         pm_runtime_put_autosuspend(dev->dev);
854 
855         return ret;
856 }
857 
858 static void
859 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
860 {
861         struct nouveau_cli *cli = nouveau_cli(fpriv);
862         struct nouveau_drm *drm = nouveau_drm(dev);
863 
864         pm_runtime_get_sync(dev->dev);
865 
866         if (cli->abi16)
867                 nouveau_abi16_fini(cli->abi16);
868 
869         mutex_lock(&drm->client.mutex);
870         list_del(&cli->head);
871         mutex_unlock(&drm->client.mutex);
872 
873 }
874 
875 static void
876 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
877 {
878         struct nouveau_cli *cli = nouveau_cli(fpriv);
879         nouveau_cli_destroy(cli);
880         pm_runtime_mark_last_busy(dev->dev);
881         pm_runtime_put_autosuspend(dev->dev);
882 }
883 
884 static const struct drm_ioctl_desc
885 nouveau_ioctls[] = {
886         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
887         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
888         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
889         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
890         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
891         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
892         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
893         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
894         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
895         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
896         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
897         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
898 };
899 
900 long
901 nouveau_drm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
902 {
903         struct drm_file *filp = file->private_data;
904         struct drm_device *dev = filp->minor->dev;
905         long ret;
906 
907         ret = pm_runtime_get_sync(dev->dev);
908         if (ret < 0 && ret != -EACCES)
909                 return ret;
910 
911         switch (_IOC_NR(cmd) - DRM_COMMAND_BASE) {
912         case DRM_NOUVEAU_NVIF:
913                 ret = usif_ioctl(filp, (void __user *)arg, _IOC_SIZE(cmd));
914                 break;
915         default:
916                 ret = drm_ioctl(file, cmd, arg);
917                 break;
918         }
919 
920         pm_runtime_mark_last_busy(dev->dev);
921         pm_runtime_put_autosuspend(dev->dev);
922         return ret;
923 }
924 
925 static const struct file_operations
926 nouveau_driver_fops = {
927         .owner = THIS_MODULE,
928         .open = drm_open,
929         .release = drm_release,
930         .unlocked_ioctl = nouveau_drm_ioctl,
931         .mmap = nouveau_ttm_mmap,
932         .poll = drm_poll,
933         .read = drm_read,
934 #if defined(CONFIG_COMPAT)
935         .compat_ioctl = nouveau_compat_ioctl,
936 #endif
937         .llseek = noop_llseek,
938 };
939 
940 static struct drm_driver
941 driver_stub = {
942         .driver_features =
943                 DRIVER_USE_AGP |
944                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
945 
946         .load = nouveau_drm_load,
947         .unload = nouveau_drm_unload,
948         .open = nouveau_drm_open,
949         .preclose = nouveau_drm_preclose,
950         .postclose = nouveau_drm_postclose,
951         .lastclose = nouveau_vga_lastclose,
952 
953 #if defined(CONFIG_DEBUG_FS)
954         .debugfs_init = nouveau_debugfs_init,
955         .debugfs_cleanup = nouveau_debugfs_takedown,
956 #endif
957 
958         .get_vblank_counter = drm_vblank_count,
959         .enable_vblank = nouveau_display_vblank_enable,
960         .disable_vblank = nouveau_display_vblank_disable,
961         .get_scanout_position = nouveau_display_scanoutpos,
962         .get_vblank_timestamp = nouveau_display_vblstamp,
963 
964         .ioctls = nouveau_ioctls,
965         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
966         .fops = &nouveau_driver_fops,
967 
968         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
969         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
970         .gem_prime_export = drm_gem_prime_export,
971         .gem_prime_import = drm_gem_prime_import,
972         .gem_prime_pin = nouveau_gem_prime_pin,
973         .gem_prime_res_obj = nouveau_gem_prime_res_obj,
974         .gem_prime_unpin = nouveau_gem_prime_unpin,
975         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
976         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
977         .gem_prime_vmap = nouveau_gem_prime_vmap,
978         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
979 
980         .gem_free_object = nouveau_gem_object_del,
981         .gem_open_object = nouveau_gem_object_open,
982         .gem_close_object = nouveau_gem_object_close,
983 
984         .dumb_create = nouveau_display_dumb_create,
985         .dumb_map_offset = nouveau_display_dumb_map_offset,
986         .dumb_destroy = drm_gem_dumb_destroy,
987 
988         .name = DRIVER_NAME,
989         .desc = DRIVER_DESC,
990 #ifdef GIT_REVISION
991         .date = GIT_REVISION,
992 #else
993         .date = DRIVER_DATE,
994 #endif
995         .major = DRIVER_MAJOR,
996         .minor = DRIVER_MINOR,
997         .patchlevel = DRIVER_PATCHLEVEL,
998 };
999 
1000 static struct pci_device_id
1001 nouveau_drm_pci_table[] = {
1002         {
1003                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
1004                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1005                 .class_mask  = 0xff << 16,
1006         },
1007         {
1008                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
1009                 .class = PCI_BASE_CLASS_DISPLAY << 16,
1010                 .class_mask  = 0xff << 16,
1011         },
1012         {}
1013 };
1014 
1015 static void nouveau_display_options(void)
1016 {
1017         DRM_DEBUG_DRIVER("Loading Nouveau with parameters:\n");
1018 
1019         DRM_DEBUG_DRIVER("... tv_disable   : %d\n", nouveau_tv_disable);
1020         DRM_DEBUG_DRIVER("... ignorelid    : %d\n", nouveau_ignorelid);
1021         DRM_DEBUG_DRIVER("... duallink     : %d\n", nouveau_duallink);
1022         DRM_DEBUG_DRIVER("... nofbaccel    : %d\n", nouveau_nofbaccel);
1023         DRM_DEBUG_DRIVER("... config       : %s\n", nouveau_config);
1024         DRM_DEBUG_DRIVER("... debug        : %s\n", nouveau_debug);
1025         DRM_DEBUG_DRIVER("... noaccel      : %d\n", nouveau_noaccel);
1026         DRM_DEBUG_DRIVER("... modeset      : %d\n", nouveau_modeset);
1027         DRM_DEBUG_DRIVER("... runpm        : %d\n", nouveau_runtime_pm);
1028         DRM_DEBUG_DRIVER("... vram_pushbuf : %d\n", nouveau_vram_pushbuf);
1029         DRM_DEBUG_DRIVER("... pstate       : %d\n", nouveau_pstate);
1030 }
1031 
1032 static const struct dev_pm_ops nouveau_pm_ops = {
1033         .suspend = nouveau_pmops_suspend,
1034         .resume = nouveau_pmops_resume,
1035         .freeze = nouveau_pmops_freeze,
1036         .thaw = nouveau_pmops_thaw,
1037         .poweroff = nouveau_pmops_freeze,
1038         .restore = nouveau_pmops_resume,
1039         .runtime_suspend = nouveau_pmops_runtime_suspend,
1040         .runtime_resume = nouveau_pmops_runtime_resume,
1041         .runtime_idle = nouveau_pmops_runtime_idle,
1042 };
1043 
1044 static struct pci_driver
1045 nouveau_drm_pci_driver = {
1046         .name = "nouveau",
1047         .id_table = nouveau_drm_pci_table,
1048         .probe = nouveau_drm_probe,
1049         .remove = nouveau_drm_remove,
1050         .driver.pm = &nouveau_pm_ops,
1051 };
1052 
1053 struct drm_device *
1054 nouveau_platform_device_create_(struct platform_device *pdev, int size,
1055                                 void **pobject)
1056 {
1057         struct drm_device *drm;
1058         int err;
1059 
1060         err = nvkm_device_create_(pdev, NVKM_BUS_PLATFORM,
1061                                   nouveau_platform_name(pdev),
1062                                   dev_name(&pdev->dev), nouveau_config,
1063                                   nouveau_debug, size, pobject);
1064         if (err)
1065                 return ERR_PTR(err);
1066 
1067         drm = drm_dev_alloc(&driver_platform, &pdev->dev);
1068         if (!drm) {
1069                 err = -ENOMEM;
1070                 goto err_free;
1071         }
1072 
1073         err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
1074         if (err < 0)
1075                 goto err_free;
1076 
1077         drm->platformdev = pdev;
1078         platform_set_drvdata(pdev, drm);
1079 
1080         return drm;
1081 
1082 err_free:
1083         nvkm_object_ref(NULL, (struct nvkm_object **)pobject);
1084 
1085         return ERR_PTR(err);
1086 }
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 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1109         platform_driver_register(&nouveau_platform_driver);
1110 #endif
1111 
1112         nouveau_register_dsm_handler();
1113         return drm_pci_init(&driver_pci, &nouveau_drm_pci_driver);
1114 }
1115 
1116 static void __exit
1117 nouveau_drm_exit(void)
1118 {
1119         if (!nouveau_modeset)
1120                 return;
1121 
1122         drm_pci_exit(&driver_pci, &nouveau_drm_pci_driver);
1123         nouveau_unregister_dsm_handler();
1124 
1125 #ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
1126         platform_driver_unregister(&nouveau_platform_driver);
1127 #endif
1128 }
1129 
1130 module_init(nouveau_drm_init);
1131 module_exit(nouveau_drm_exit);
1132 
1133 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1134 MODULE_AUTHOR(DRIVER_AUTHOR);
1135 MODULE_DESCRIPTION(DRIVER_DESC);
1136 MODULE_LICENSE("GPL and additional rights");
1137 

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