Version:  2.0.40 2.2.26 2.4.37 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16

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 #include "drmP.h"
 31 #include "drm_crtc_helper.h"
 32 #include <core/device.h>
 33 #include <core/client.h>
 34 #include <core/gpuobj.h>
 35 #include <core/class.h>
 36 #include <core/option.h>
 37 
 38 #include <engine/device.h>
 39 #include <engine/disp.h>
 40 #include <engine/fifo.h>
 41 #include <engine/software.h>
 42 
 43 #include <subdev/vm.h>
 44 
 45 #include "nouveau_drm.h"
 46 #include "nouveau_dma.h"
 47 #include "nouveau_ttm.h"
 48 #include "nouveau_gem.h"
 49 #include "nouveau_agp.h"
 50 #include "nouveau_vga.h"
 51 #include "nouveau_sysfs.h"
 52 #include "nouveau_hwmon.h"
 53 #include "nouveau_acpi.h"
 54 #include "nouveau_bios.h"
 55 #include "nouveau_ioctl.h"
 56 #include "nouveau_abi16.h"
 57 #include "nouveau_fbcon.h"
 58 #include "nouveau_fence.h"
 59 #include "nouveau_debugfs.h"
 60 
 61 MODULE_PARM_DESC(config, "option string to pass to driver core");
 62 static char *nouveau_config;
 63 module_param_named(config, nouveau_config, charp, 0400);
 64 
 65 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
 66 static char *nouveau_debug;
 67 module_param_named(debug, nouveau_debug, charp, 0400);
 68 
 69 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
 70 static int nouveau_noaccel = 0;
 71 module_param_named(noaccel, nouveau_noaccel, int, 0400);
 72 
 73 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
 74                           "0 = disabled, 1 = enabled, 2 = headless)");
 75 int nouveau_modeset = -1;
 76 module_param_named(modeset, nouveau_modeset, int, 0400);
 77 
 78 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
 79 int nouveau_runtime_pm = -1;
 80 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
 81 
 82 static struct drm_driver driver;
 83 
 84 static u64
 85 nouveau_pci_name(struct pci_dev *pdev)
 86 {
 87         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
 88         name |= pdev->bus->number << 16;
 89         name |= PCI_SLOT(pdev->devfn) << 8;
 90         return name | PCI_FUNC(pdev->devfn);
 91 }
 92 
 93 static u64
 94 nouveau_platform_name(struct platform_device *platformdev)
 95 {
 96         return platformdev->id;
 97 }
 98 
 99 static u64
100 nouveau_name(struct drm_device *dev)
101 {
102         if (dev->pdev)
103                 return nouveau_pci_name(dev->pdev);
104         else
105                 return nouveau_platform_name(dev->platformdev);
106 }
107 
108 static int
109 nouveau_cli_create(u64 name, const char *sname,
110                    int size, void **pcli)
111 {
112         struct nouveau_cli *cli;
113         int ret;
114 
115         *pcli = NULL;
116         ret = nouveau_client_create_(sname, name, nouveau_config,
117                                      nouveau_debug, size, pcli);
118         cli = *pcli;
119         if (ret) {
120                 if (cli)
121                         nouveau_client_destroy(&cli->base);
122                 *pcli = NULL;
123                 return ret;
124         }
125 
126         mutex_init(&cli->mutex);
127         return 0;
128 }
129 
130 static void
131 nouveau_cli_destroy(struct nouveau_cli *cli)
132 {
133         struct nouveau_object *client = nv_object(cli);
134         nouveau_vm_ref(NULL, &cli->base.vm, NULL);
135         nouveau_client_fini(&cli->base, false);
136         atomic_set(&client->refcount, 1);
137         nouveau_object_ref(NULL, &client);
138 }
139 
140 static void
141 nouveau_accel_fini(struct nouveau_drm *drm)
142 {
143         nouveau_gpuobj_ref(NULL, &drm->notify);
144         nouveau_channel_del(&drm->channel);
145         nouveau_channel_del(&drm->cechan);
146         if (drm->fence)
147                 nouveau_fence(drm)->dtor(drm);
148 }
149 
150 static void
151 nouveau_accel_init(struct nouveau_drm *drm)
152 {
153         struct nouveau_device *device = nv_device(drm->device);
154         struct nouveau_object *object;
155         u32 arg0, arg1;
156         int ret;
157 
158         if (nouveau_noaccel || !nouveau_fifo(device) /*XXX*/)
159                 return;
160 
161         /* initialise synchronisation routines */
162         if      (device->card_type < NV_10) ret = nv04_fence_create(drm);
163         else if (device->card_type < NV_11 ||
164                  device->chipset   <  0x17) ret = nv10_fence_create(drm);
165         else if (device->card_type < NV_50) ret = nv17_fence_create(drm);
166         else if (device->chipset   <  0x84) ret = nv50_fence_create(drm);
167         else if (device->card_type < NV_C0) ret = nv84_fence_create(drm);
168         else                                ret = nvc0_fence_create(drm);
169         if (ret) {
170                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
171                 nouveau_accel_fini(drm);
172                 return;
173         }
174 
175         if (device->card_type >= NV_E0) {
176                 ret = nouveau_channel_new(drm, &drm->client, NVDRM_DEVICE,
177                                           NVDRM_CHAN + 1,
178                                           NVE0_CHANNEL_IND_ENGINE_CE0 |
179                                           NVE0_CHANNEL_IND_ENGINE_CE1, 0,
180                                           &drm->cechan);
181                 if (ret)
182                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
183 
184                 arg0 = NVE0_CHANNEL_IND_ENGINE_GR;
185                 arg1 = 1;
186         } else
187         if (device->chipset >= 0xa3 &&
188             device->chipset != 0xaa &&
189             device->chipset != 0xac) {
190                 ret = nouveau_channel_new(drm, &drm->client, NVDRM_DEVICE,
191                                           NVDRM_CHAN + 1, NvDmaFB, NvDmaTT,
192                                           &drm->cechan);
193                 if (ret)
194                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
195 
196                 arg0 = NvDmaFB;
197                 arg1 = NvDmaTT;
198         } else {
199                 arg0 = NvDmaFB;
200                 arg1 = NvDmaTT;
201         }
202 
203         ret = nouveau_channel_new(drm, &drm->client, NVDRM_DEVICE, NVDRM_CHAN,
204                                   arg0, arg1, &drm->channel);
205         if (ret) {
206                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
207                 nouveau_accel_fini(drm);
208                 return;
209         }
210 
211         ret = nouveau_object_new(nv_object(drm), NVDRM_CHAN, NVDRM_NVSW,
212                                  nouveau_abi16_swclass(drm), NULL, 0, &object);
213         if (ret == 0) {
214                 struct nouveau_software_chan *swch = (void *)object->parent;
215                 ret = RING_SPACE(drm->channel, 2);
216                 if (ret == 0) {
217                         if (device->card_type < NV_C0) {
218                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
219                                 OUT_RING  (drm->channel, NVDRM_NVSW);
220                         } else
221                         if (device->card_type < NV_E0) {
222                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
223                                 OUT_RING  (drm->channel, 0x001f0000);
224                         }
225                 }
226                 swch = (void *)object->parent;
227                 swch->flip = nouveau_flip_complete;
228                 swch->flip_data = drm->channel;
229         }
230 
231         if (ret) {
232                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
233                 nouveau_accel_fini(drm);
234                 return;
235         }
236 
237         if (device->card_type < NV_C0) {
238                 ret = nouveau_gpuobj_new(drm->device, NULL, 32, 0, 0,
239                                         &drm->notify);
240                 if (ret) {
241                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
242                         nouveau_accel_fini(drm);
243                         return;
244                 }
245 
246                 ret = nouveau_object_new(nv_object(drm),
247                                          drm->channel->handle, NvNotify0,
248                                          0x003d, &(struct nv_dma_class) {
249                                                 .flags = NV_DMA_TARGET_VRAM |
250                                                          NV_DMA_ACCESS_RDWR,
251                                                 .start = drm->notify->addr,
252                                                 .limit = drm->notify->addr + 31
253                                                 }, sizeof(struct nv_dma_class),
254                                          &object);
255                 if (ret) {
256                         nouveau_accel_fini(drm);
257                         return;
258                 }
259         }
260 
261 
262         nouveau_bo_move_init(drm);
263 }
264 
265 static int nouveau_drm_probe(struct pci_dev *pdev,
266                              const struct pci_device_id *pent)
267 {
268         struct nouveau_device *device;
269         struct apertures_struct *aper;
270         bool boot = false;
271         int ret;
272 
273         /* remove conflicting drivers (vesafb, efifb etc) */
274         aper = alloc_apertures(3);
275         if (!aper)
276                 return -ENOMEM;
277 
278         aper->ranges[0].base = pci_resource_start(pdev, 1);
279         aper->ranges[0].size = pci_resource_len(pdev, 1);
280         aper->count = 1;
281 
282         if (pci_resource_len(pdev, 2)) {
283                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
284                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
285                 aper->count++;
286         }
287 
288         if (pci_resource_len(pdev, 3)) {
289                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
290                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
291                 aper->count++;
292         }
293 
294 #ifdef CONFIG_X86
295         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
296 #endif
297         remove_conflicting_framebuffers(aper, "nouveaufb", boot);
298         kfree(aper);
299 
300         ret = nouveau_device_create(pdev, NOUVEAU_BUS_PCI,
301                                     nouveau_pci_name(pdev), pci_name(pdev),
302                                     nouveau_config, nouveau_debug, &device);
303         if (ret)
304                 return ret;
305 
306         pci_set_master(pdev);
307 
308         ret = drm_get_pci_dev(pdev, pent, &driver);
309         if (ret) {
310                 nouveau_object_ref(NULL, (struct nouveau_object **)&device);
311                 return ret;
312         }
313 
314         return 0;
315 }
316 
317 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
318 
319 static void
320 nouveau_get_hdmi_dev(struct nouveau_drm *drm)
321 {
322         struct pci_dev *pdev = drm->dev->pdev;
323 
324         if (!pdev) {
325                 DRM_INFO("not a PCI device; no HDMI\n");
326                 drm->hdmi_device = NULL;
327                 return;
328         }
329 
330         /* subfunction one is a hdmi audio device? */
331         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
332                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
333 
334         if (!drm->hdmi_device) {
335                 NV_DEBUG(drm, "hdmi device not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
336                 return;
337         }
338 
339         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
340                 NV_DEBUG(drm, "possible hdmi device not audio %d\n", drm->hdmi_device->class);
341                 pci_dev_put(drm->hdmi_device);
342                 drm->hdmi_device = NULL;
343                 return;
344         }
345 }
346 
347 static int
348 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
349 {
350         struct pci_dev *pdev = dev->pdev;
351         struct nouveau_device *device;
352         struct nouveau_drm *drm;
353         int ret;
354 
355         ret = nouveau_cli_create(nouveau_name(dev), "DRM", sizeof(*drm),
356                                  (void **)&drm);
357         if (ret)
358                 return ret;
359 
360         dev->dev_private = drm;
361         drm->dev = dev;
362         nouveau_client(drm)->debug = nouveau_dbgopt(nouveau_debug, "DRM");
363 
364         INIT_LIST_HEAD(&drm->clients);
365         spin_lock_init(&drm->tile.lock);
366 
367         nouveau_get_hdmi_dev(drm);
368 
369         /* make sure AGP controller is in a consistent state before we
370          * (possibly) execute vbios init tables (see nouveau_agp.h)
371          */
372         if (pdev && drm_pci_device_is_agp(dev) && dev->agp) {
373                 /* dummy device object, doesn't init anything, but allows
374                  * agp code access to registers
375                  */
376                 ret = nouveau_object_new(nv_object(drm), NVDRM_CLIENT,
377                                          NVDRM_DEVICE, 0x0080,
378                                          &(struct nv_device_class) {
379                                                 .device = ~0,
380                                                 .disable =
381                                                  ~(NV_DEVICE_DISABLE_MMIO |
382                                                    NV_DEVICE_DISABLE_IDENTIFY),
383                                                 .debug0 = ~0,
384                                          }, sizeof(struct nv_device_class),
385                                          &drm->device);
386                 if (ret)
387                         goto fail_device;
388 
389                 nouveau_agp_reset(drm);
390                 nouveau_object_del(nv_object(drm), NVDRM_CLIENT, NVDRM_DEVICE);
391         }
392 
393         ret = nouveau_object_new(nv_object(drm), NVDRM_CLIENT, NVDRM_DEVICE,
394                                  0x0080, &(struct nv_device_class) {
395                                         .device = ~0,
396                                         .disable = 0,
397                                         .debug0 = 0,
398                                  }, sizeof(struct nv_device_class),
399                                  &drm->device);
400         if (ret)
401                 goto fail_device;
402 
403         dev->irq_enabled = true;
404 
405         /* workaround an odd issue on nvc1 by disabling the device's
406          * nosnoop capability.  hopefully won't cause issues until a
407          * better fix is found - assuming there is one...
408          */
409         device = nv_device(drm->device);
410         if (nv_device(drm->device)->chipset == 0xc1)
411                 nv_mask(device, 0x00088080, 0x00000800, 0x00000000);
412 
413         nouveau_vga_init(drm);
414         nouveau_agp_init(drm);
415 
416         if (device->card_type >= NV_50) {
417                 ret = nouveau_vm_new(nv_device(drm->device), 0, (1ULL << 40),
418                                      0x1000, &drm->client.base.vm);
419                 if (ret)
420                         goto fail_device;
421         }
422 
423         ret = nouveau_ttm_init(drm);
424         if (ret)
425                 goto fail_ttm;
426 
427         ret = nouveau_bios_init(dev);
428         if (ret)
429                 goto fail_bios;
430 
431         ret = nouveau_display_create(dev);
432         if (ret)
433                 goto fail_dispctor;
434 
435         if (dev->mode_config.num_crtc) {
436                 ret = nouveau_display_init(dev);
437                 if (ret)
438                         goto fail_dispinit;
439         }
440 
441         nouveau_sysfs_init(dev);
442         nouveau_hwmon_init(dev);
443         nouveau_accel_init(drm);
444         nouveau_fbcon_init(dev);
445 
446         if (nouveau_runtime_pm != 0) {
447                 pm_runtime_use_autosuspend(dev->dev);
448                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
449                 pm_runtime_set_active(dev->dev);
450                 pm_runtime_allow(dev->dev);
451                 pm_runtime_mark_last_busy(dev->dev);
452                 pm_runtime_put(dev->dev);
453         }
454         return 0;
455 
456 fail_dispinit:
457         nouveau_display_destroy(dev);
458 fail_dispctor:
459         nouveau_bios_takedown(dev);
460 fail_bios:
461         nouveau_ttm_fini(drm);
462 fail_ttm:
463         nouveau_agp_fini(drm);
464         nouveau_vga_fini(drm);
465 fail_device:
466         nouveau_cli_destroy(&drm->client);
467         return ret;
468 }
469 
470 static int
471 nouveau_drm_unload(struct drm_device *dev)
472 {
473         struct nouveau_drm *drm = nouveau_drm(dev);
474 
475         pm_runtime_get_sync(dev->dev);
476         nouveau_fbcon_fini(dev);
477         nouveau_accel_fini(drm);
478         nouveau_hwmon_fini(dev);
479         nouveau_sysfs_fini(dev);
480 
481         if (dev->mode_config.num_crtc)
482                 nouveau_display_fini(dev);
483         nouveau_display_destroy(dev);
484 
485         nouveau_bios_takedown(dev);
486 
487         nouveau_ttm_fini(drm);
488         nouveau_agp_fini(drm);
489         nouveau_vga_fini(drm);
490 
491         if (drm->hdmi_device)
492                 pci_dev_put(drm->hdmi_device);
493         nouveau_cli_destroy(&drm->client);
494         return 0;
495 }
496 
497 static void
498 nouveau_drm_remove(struct pci_dev *pdev)
499 {
500         struct drm_device *dev = pci_get_drvdata(pdev);
501         struct nouveau_drm *drm = nouveau_drm(dev);
502         struct nouveau_object *device;
503 
504         dev->irq_enabled = false;
505         device = drm->client.base.device;
506         drm_put_dev(dev);
507 
508         nouveau_object_ref(NULL, &device);
509         nouveau_object_debug();
510 }
511 
512 static int
513 nouveau_do_suspend(struct drm_device *dev, bool runtime)
514 {
515         struct nouveau_drm *drm = nouveau_drm(dev);
516         struct nouveau_cli *cli;
517         int ret;
518 
519         if (dev->mode_config.num_crtc && !runtime) {
520                 NV_INFO(drm, "suspending display...\n");
521                 ret = nouveau_display_suspend(dev);
522                 if (ret)
523                         return ret;
524         }
525 
526         NV_INFO(drm, "evicting buffers...\n");
527         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
528 
529         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
530         if (drm->cechan) {
531                 ret = nouveau_channel_idle(drm->cechan);
532                 if (ret)
533                         goto fail_display;
534         }
535 
536         if (drm->channel) {
537                 ret = nouveau_channel_idle(drm->channel);
538                 if (ret)
539                         goto fail_display;
540         }
541 
542         NV_INFO(drm, "suspending client object trees...\n");
543         if (drm->fence && nouveau_fence(drm)->suspend) {
544                 if (!nouveau_fence(drm)->suspend(drm)) {
545                         ret = -ENOMEM;
546                         goto fail_display;
547                 }
548         }
549 
550         list_for_each_entry(cli, &drm->clients, head) {
551                 ret = nouveau_client_fini(&cli->base, true);
552                 if (ret)
553                         goto fail_client;
554         }
555 
556         NV_INFO(drm, "suspending kernel object tree...\n");
557         ret = nouveau_client_fini(&drm->client.base, true);
558         if (ret)
559                 goto fail_client;
560 
561         nouveau_agp_fini(drm);
562         return 0;
563 
564 fail_client:
565         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
566                 nouveau_client_init(&cli->base);
567         }
568 
569         if (drm->fence && nouveau_fence(drm)->resume)
570                 nouveau_fence(drm)->resume(drm);
571 
572 fail_display:
573         if (dev->mode_config.num_crtc) {
574                 NV_INFO(drm, "resuming display...\n");
575                 nouveau_display_resume(dev);
576         }
577         return ret;
578 }
579 
580 int nouveau_pmops_suspend(struct device *dev)
581 {
582         struct pci_dev *pdev = to_pci_dev(dev);
583         struct drm_device *drm_dev = pci_get_drvdata(pdev);
584         int ret;
585 
586         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
587             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
588                 return 0;
589 
590         if (drm_dev->mode_config.num_crtc)
591                 nouveau_fbcon_set_suspend(drm_dev, 1);
592 
593         ret = nouveau_do_suspend(drm_dev, false);
594         if (ret)
595                 return ret;
596 
597         pci_save_state(pdev);
598         pci_disable_device(pdev);
599         pci_set_power_state(pdev, PCI_D3hot);
600         return 0;
601 }
602 
603 static int
604 nouveau_do_resume(struct drm_device *dev)
605 {
606         struct nouveau_drm *drm = nouveau_drm(dev);
607         struct nouveau_cli *cli;
608 
609         NV_INFO(drm, "re-enabling device...\n");
610 
611         nouveau_agp_reset(drm);
612 
613         NV_INFO(drm, "resuming kernel object tree...\n");
614         nouveau_client_init(&drm->client.base);
615         nouveau_agp_init(drm);
616 
617         NV_INFO(drm, "resuming client object trees...\n");
618         if (drm->fence && nouveau_fence(drm)->resume)
619                 nouveau_fence(drm)->resume(drm);
620 
621         list_for_each_entry(cli, &drm->clients, head) {
622                 nouveau_client_init(&cli->base);
623         }
624 
625         nouveau_run_vbios_init(dev);
626 
627         if (dev->mode_config.num_crtc) {
628                 NV_INFO(drm, "resuming display...\n");
629                 nouveau_display_repin(dev);
630         }
631 
632         return 0;
633 }
634 
635 int nouveau_pmops_resume(struct device *dev)
636 {
637         struct pci_dev *pdev = to_pci_dev(dev);
638         struct drm_device *drm_dev = pci_get_drvdata(pdev);
639         int ret;
640 
641         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
642             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
643                 return 0;
644 
645         pci_set_power_state(pdev, PCI_D0);
646         pci_restore_state(pdev);
647         ret = pci_enable_device(pdev);
648         if (ret)
649                 return ret;
650         pci_set_master(pdev);
651 
652         ret = nouveau_do_resume(drm_dev);
653         if (ret)
654                 return ret;
655 
656         if (drm_dev->mode_config.num_crtc) {
657                 nouveau_display_resume(drm_dev);
658                 nouveau_fbcon_set_suspend(drm_dev, 0);
659         }
660 
661         return 0;
662 }
663 
664 static int nouveau_pmops_freeze(struct device *dev)
665 {
666         struct pci_dev *pdev = to_pci_dev(dev);
667         struct drm_device *drm_dev = pci_get_drvdata(pdev);
668         int ret;
669 
670         if (drm_dev->mode_config.num_crtc)
671                 nouveau_fbcon_set_suspend(drm_dev, 1);
672 
673         ret = nouveau_do_suspend(drm_dev, false);
674         return ret;
675 }
676 
677 static int nouveau_pmops_thaw(struct device *dev)
678 {
679         struct pci_dev *pdev = to_pci_dev(dev);
680         struct drm_device *drm_dev = pci_get_drvdata(pdev);
681         int ret;
682 
683         ret = nouveau_do_resume(drm_dev);
684         if (ret)
685                 return ret;
686 
687         if (drm_dev->mode_config.num_crtc) {
688                 nouveau_display_resume(drm_dev);
689                 nouveau_fbcon_set_suspend(drm_dev, 0);
690         }
691 
692         return 0;
693 }
694 
695 
696 static int
697 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
698 {
699         struct nouveau_drm *drm = nouveau_drm(dev);
700         struct nouveau_cli *cli;
701         char name[32], tmpname[TASK_COMM_LEN];
702         int ret;
703 
704         /* need to bring up power immediately if opening device */
705         ret = pm_runtime_get_sync(dev->dev);
706         if (ret < 0 && ret != -EACCES)
707                 return ret;
708 
709         get_task_comm(tmpname, current);
710         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
711 
712         ret = nouveau_cli_create(nouveau_name(dev), name, sizeof(*cli),
713                         (void **)&cli);
714 
715         if (ret)
716                 goto out_suspend;
717 
718         if (nv_device(drm->device)->card_type >= NV_50) {
719                 ret = nouveau_vm_new(nv_device(drm->device), 0, (1ULL << 40),
720                                      0x1000, &cli->base.vm);
721                 if (ret) {
722                         nouveau_cli_destroy(cli);
723                         goto out_suspend;
724                 }
725         }
726 
727         fpriv->driver_priv = cli;
728 
729         mutex_lock(&drm->client.mutex);
730         list_add(&cli->head, &drm->clients);
731         mutex_unlock(&drm->client.mutex);
732 
733 out_suspend:
734         pm_runtime_mark_last_busy(dev->dev);
735         pm_runtime_put_autosuspend(dev->dev);
736 
737         return ret;
738 }
739 
740 static void
741 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
742 {
743         struct nouveau_cli *cli = nouveau_cli(fpriv);
744         struct nouveau_drm *drm = nouveau_drm(dev);
745 
746         pm_runtime_get_sync(dev->dev);
747 
748         if (cli->abi16)
749                 nouveau_abi16_fini(cli->abi16);
750 
751         mutex_lock(&drm->client.mutex);
752         list_del(&cli->head);
753         mutex_unlock(&drm->client.mutex);
754 
755 }
756 
757 static void
758 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
759 {
760         struct nouveau_cli *cli = nouveau_cli(fpriv);
761         nouveau_cli_destroy(cli);
762         pm_runtime_mark_last_busy(dev->dev);
763         pm_runtime_put_autosuspend(dev->dev);
764 }
765 
766 static const struct drm_ioctl_desc
767 nouveau_ioctls[] = {
768         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
769         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
770         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
771         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
772         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
773         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
774         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
775         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
776         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
777         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
778         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
779         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
780 };
781 
782 long nouveau_drm_ioctl(struct file *filp,
783                        unsigned int cmd, unsigned long arg)
784 {
785         struct drm_file *file_priv = filp->private_data;
786         struct drm_device *dev;
787         long ret;
788         dev = file_priv->minor->dev;
789 
790         ret = pm_runtime_get_sync(dev->dev);
791         if (ret < 0 && ret != -EACCES)
792                 return ret;
793 
794         ret = drm_ioctl(filp, cmd, arg);
795 
796         pm_runtime_mark_last_busy(dev->dev);
797         pm_runtime_put_autosuspend(dev->dev);
798         return ret;
799 }
800 static const struct file_operations
801 nouveau_driver_fops = {
802         .owner = THIS_MODULE,
803         .open = drm_open,
804         .release = drm_release,
805         .unlocked_ioctl = nouveau_drm_ioctl,
806         .mmap = nouveau_ttm_mmap,
807         .poll = drm_poll,
808         .read = drm_read,
809 #if defined(CONFIG_COMPAT)
810         .compat_ioctl = nouveau_compat_ioctl,
811 #endif
812         .llseek = noop_llseek,
813 };
814 
815 static struct drm_driver
816 driver = {
817         .driver_features =
818                 DRIVER_USE_AGP |
819                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
820 
821         .load = nouveau_drm_load,
822         .unload = nouveau_drm_unload,
823         .open = nouveau_drm_open,
824         .preclose = nouveau_drm_preclose,
825         .postclose = nouveau_drm_postclose,
826         .lastclose = nouveau_vga_lastclose,
827 
828 #if defined(CONFIG_DEBUG_FS)
829         .debugfs_init = nouveau_debugfs_init,
830         .debugfs_cleanup = nouveau_debugfs_takedown,
831 #endif
832 
833         .get_vblank_counter = drm_vblank_count,
834         .enable_vblank = nouveau_display_vblank_enable,
835         .disable_vblank = nouveau_display_vblank_disable,
836         .get_scanout_position = nouveau_display_scanoutpos,
837         .get_vblank_timestamp = nouveau_display_vblstamp,
838 
839         .ioctls = nouveau_ioctls,
840         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
841         .fops = &nouveau_driver_fops,
842 
843         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
844         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
845         .gem_prime_export = drm_gem_prime_export,
846         .gem_prime_import = drm_gem_prime_import,
847         .gem_prime_pin = nouveau_gem_prime_pin,
848         .gem_prime_unpin = nouveau_gem_prime_unpin,
849         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
850         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
851         .gem_prime_vmap = nouveau_gem_prime_vmap,
852         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
853 
854         .gem_free_object = nouveau_gem_object_del,
855         .gem_open_object = nouveau_gem_object_open,
856         .gem_close_object = nouveau_gem_object_close,
857 
858         .dumb_create = nouveau_display_dumb_create,
859         .dumb_map_offset = nouveau_display_dumb_map_offset,
860         .dumb_destroy = drm_gem_dumb_destroy,
861 
862         .name = DRIVER_NAME,
863         .desc = DRIVER_DESC,
864 #ifdef GIT_REVISION
865         .date = GIT_REVISION,
866 #else
867         .date = DRIVER_DATE,
868 #endif
869         .major = DRIVER_MAJOR,
870         .minor = DRIVER_MINOR,
871         .patchlevel = DRIVER_PATCHLEVEL,
872 };
873 
874 static struct pci_device_id
875 nouveau_drm_pci_table[] = {
876         {
877                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
878                 .class = PCI_BASE_CLASS_DISPLAY << 16,
879                 .class_mask  = 0xff << 16,
880         },
881         {
882                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
883                 .class = PCI_BASE_CLASS_DISPLAY << 16,
884                 .class_mask  = 0xff << 16,
885         },
886         {}
887 };
888 
889 static int nouveau_pmops_runtime_suspend(struct device *dev)
890 {
891         struct pci_dev *pdev = to_pci_dev(dev);
892         struct drm_device *drm_dev = pci_get_drvdata(pdev);
893         int ret;
894 
895         if (nouveau_runtime_pm == 0) {
896                 pm_runtime_forbid(dev);
897                 return -EBUSY;
898         }
899 
900         /* are we optimus enabled? */
901         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
902                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
903                 pm_runtime_forbid(dev);
904                 return -EBUSY;
905         }
906 
907         nv_debug_level(SILENT);
908         drm_kms_helper_poll_disable(drm_dev);
909         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
910         nouveau_switcheroo_optimus_dsm();
911         ret = nouveau_do_suspend(drm_dev, true);
912         pci_save_state(pdev);
913         pci_disable_device(pdev);
914         pci_set_power_state(pdev, PCI_D3cold);
915         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
916         return ret;
917 }
918 
919 static int nouveau_pmops_runtime_resume(struct device *dev)
920 {
921         struct pci_dev *pdev = to_pci_dev(dev);
922         struct drm_device *drm_dev = pci_get_drvdata(pdev);
923         struct nouveau_device *device = nouveau_dev(drm_dev);
924         int ret;
925 
926         if (nouveau_runtime_pm == 0)
927                 return -EINVAL;
928 
929         pci_set_power_state(pdev, PCI_D0);
930         pci_restore_state(pdev);
931         ret = pci_enable_device(pdev);
932         if (ret)
933                 return ret;
934         pci_set_master(pdev);
935 
936         ret = nouveau_do_resume(drm_dev);
937         drm_kms_helper_poll_enable(drm_dev);
938         /* do magic */
939         nv_mask(device, 0x88488, (1 << 25), (1 << 25));
940         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
941         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
942         nv_debug_level(NORMAL);
943         return ret;
944 }
945 
946 static int nouveau_pmops_runtime_idle(struct device *dev)
947 {
948         struct pci_dev *pdev = to_pci_dev(dev);
949         struct drm_device *drm_dev = pci_get_drvdata(pdev);
950         struct nouveau_drm *drm = nouveau_drm(drm_dev);
951         struct drm_crtc *crtc;
952 
953         if (nouveau_runtime_pm == 0) {
954                 pm_runtime_forbid(dev);
955                 return -EBUSY;
956         }
957 
958         /* are we optimus enabled? */
959         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
960                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
961                 pm_runtime_forbid(dev);
962                 return -EBUSY;
963         }
964 
965         /* if we have a hdmi audio device - make sure it has a driver loaded */
966         if (drm->hdmi_device) {
967                 if (!drm->hdmi_device->driver) {
968                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
969                         pm_runtime_mark_last_busy(dev);
970                         return -EBUSY;
971                 }
972         }
973 
974         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
975                 if (crtc->enabled) {
976                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
977                         return -EBUSY;
978                 }
979         }
980         pm_runtime_mark_last_busy(dev);
981         pm_runtime_autosuspend(dev);
982         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
983         return 1;
984 }
985 
986 static const struct dev_pm_ops nouveau_pm_ops = {
987         .suspend = nouveau_pmops_suspend,
988         .resume = nouveau_pmops_resume,
989         .freeze = nouveau_pmops_freeze,
990         .thaw = nouveau_pmops_thaw,
991         .poweroff = nouveau_pmops_freeze,
992         .restore = nouveau_pmops_resume,
993         .runtime_suspend = nouveau_pmops_runtime_suspend,
994         .runtime_resume = nouveau_pmops_runtime_resume,
995         .runtime_idle = nouveau_pmops_runtime_idle,
996 };
997 
998 static struct pci_driver
999 nouveau_drm_pci_driver = {
1000         .name = "nouveau",
1001         .id_table = nouveau_drm_pci_table,
1002         .probe = nouveau_drm_probe,
1003         .remove = nouveau_drm_remove,
1004         .driver.pm = &nouveau_pm_ops,
1005 };
1006 
1007 int nouveau_drm_platform_probe(struct platform_device *pdev)
1008 {
1009         struct nouveau_device *device;
1010         int ret;
1011 
1012         ret = nouveau_device_create(pdev, NOUVEAU_BUS_PLATFORM,
1013                                     nouveau_platform_name(pdev),
1014                                     dev_name(&pdev->dev), nouveau_config,
1015                                     nouveau_debug, &device);
1016 
1017         ret = drm_platform_init(&driver, pdev);
1018         if (ret) {
1019                 nouveau_object_ref(NULL, (struct nouveau_object **)&device);
1020                 return ret;
1021         }
1022 
1023         return ret;
1024 }
1025 
1026 static int __init
1027 nouveau_drm_init(void)
1028 {
1029         if (nouveau_modeset == -1) {
1030 #ifdef CONFIG_VGA_CONSOLE
1031                 if (vgacon_text_force())
1032                         nouveau_modeset = 0;
1033 #endif
1034         }
1035 
1036         if (!nouveau_modeset)
1037                 return 0;
1038 
1039         nouveau_register_dsm_handler();
1040         return drm_pci_init(&driver, &nouveau_drm_pci_driver);
1041 }
1042 
1043 static void __exit
1044 nouveau_drm_exit(void)
1045 {
1046         if (!nouveau_modeset)
1047                 return;
1048 
1049         drm_pci_exit(&driver, &nouveau_drm_pci_driver);
1050         nouveau_unregister_dsm_handler();
1051 }
1052 
1053 module_init(nouveau_drm_init);
1054 module_exit(nouveau_drm_exit);
1055 
1056 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1057 MODULE_AUTHOR(DRIVER_AUTHOR);
1058 MODULE_DESCRIPTION(DRIVER_DESC);
1059 MODULE_LICENSE("GPL and additional rights");
1060 

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