Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[sfrench/cifs-2.6.git] / 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
37 #include <engine/device.h>
38 #include <engine/disp.h>
39 #include <engine/fifo.h>
40 #include <engine/software.h>
41
42 #include <subdev/vm.h>
43
44 #include "nouveau_drm.h"
45 #include "nouveau_dma.h"
46 #include "nouveau_ttm.h"
47 #include "nouveau_gem.h"
48 #include "nouveau_agp.h"
49 #include "nouveau_vga.h"
50 #include "nouveau_sysfs.h"
51 #include "nouveau_hwmon.h"
52 #include "nouveau_acpi.h"
53 #include "nouveau_bios.h"
54 #include "nouveau_ioctl.h"
55 #include "nouveau_abi16.h"
56 #include "nouveau_fbcon.h"
57 #include "nouveau_fence.h"
58 #include "nouveau_debugfs.h"
59
60 MODULE_PARM_DESC(config, "option string to pass to driver core");
61 static char *nouveau_config;
62 module_param_named(config, nouveau_config, charp, 0400);
63
64 MODULE_PARM_DESC(debug, "debug string to pass to driver core");
65 static char *nouveau_debug;
66 module_param_named(debug, nouveau_debug, charp, 0400);
67
68 MODULE_PARM_DESC(noaccel, "disable kernel/abi16 acceleration");
69 static int nouveau_noaccel = 0;
70 module_param_named(noaccel, nouveau_noaccel, int, 0400);
71
72 MODULE_PARM_DESC(modeset, "enable driver (default: auto, "
73                           "0 = disabled, 1 = enabled, 2 = headless)");
74 int nouveau_modeset = -1;
75 module_param_named(modeset, nouveau_modeset, int, 0400);
76
77 MODULE_PARM_DESC(runpm, "disable (0), force enable (1), optimus only default (-1)");
78 int nouveau_runtime_pm = -1;
79 module_param_named(runpm, nouveau_runtime_pm, int, 0400);
80
81 static struct drm_driver driver;
82
83 static u64
84 nouveau_name(struct pci_dev *pdev)
85 {
86         u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
87         name |= pdev->bus->number << 16;
88         name |= PCI_SLOT(pdev->devfn) << 8;
89         return name | PCI_FUNC(pdev->devfn);
90 }
91
92 static int
93 nouveau_cli_create(struct pci_dev *pdev, const char *name,
94                    int size, void **pcli)
95 {
96         struct nouveau_cli *cli;
97         int ret;
98
99         *pcli = NULL;
100         ret = nouveau_client_create_(name, nouveau_name(pdev), nouveau_config,
101                                      nouveau_debug, size, pcli);
102         cli = *pcli;
103         if (ret) {
104                 if (cli)
105                         nouveau_client_destroy(&cli->base);
106                 *pcli = NULL;
107                 return ret;
108         }
109
110         mutex_init(&cli->mutex);
111         return 0;
112 }
113
114 static void
115 nouveau_cli_destroy(struct nouveau_cli *cli)
116 {
117         struct nouveau_object *client = nv_object(cli);
118         nouveau_vm_ref(NULL, &cli->base.vm, NULL);
119         nouveau_client_fini(&cli->base, false);
120         atomic_set(&client->refcount, 1);
121         nouveau_object_ref(NULL, &client);
122 }
123
124 static void
125 nouveau_accel_fini(struct nouveau_drm *drm)
126 {
127         nouveau_gpuobj_ref(NULL, &drm->notify);
128         nouveau_channel_del(&drm->channel);
129         nouveau_channel_del(&drm->cechan);
130         if (drm->fence)
131                 nouveau_fence(drm)->dtor(drm);
132 }
133
134 static void
135 nouveau_accel_init(struct nouveau_drm *drm)
136 {
137         struct nouveau_device *device = nv_device(drm->device);
138         struct nouveau_object *object;
139         u32 arg0, arg1;
140         int ret;
141
142         if (nouveau_noaccel || !nouveau_fifo(device) /*XXX*/)
143                 return;
144
145         /* initialise synchronisation routines */
146         if      (device->card_type < NV_10) ret = nv04_fence_create(drm);
147         else if (device->card_type < NV_11 ||
148                  device->chipset   <  0x17) ret = nv10_fence_create(drm);
149         else if (device->card_type < NV_50) ret = nv17_fence_create(drm);
150         else if (device->chipset   <  0x84) ret = nv50_fence_create(drm);
151         else if (device->card_type < NV_C0) ret = nv84_fence_create(drm);
152         else                                ret = nvc0_fence_create(drm);
153         if (ret) {
154                 NV_ERROR(drm, "failed to initialise sync subsystem, %d\n", ret);
155                 nouveau_accel_fini(drm);
156                 return;
157         }
158
159         if (device->card_type >= NV_E0) {
160                 ret = nouveau_channel_new(drm, &drm->client, NVDRM_DEVICE,
161                                           NVDRM_CHAN + 1,
162                                           NVE0_CHANNEL_IND_ENGINE_CE0 |
163                                           NVE0_CHANNEL_IND_ENGINE_CE1, 0,
164                                           &drm->cechan);
165                 if (ret)
166                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
167
168                 arg0 = NVE0_CHANNEL_IND_ENGINE_GR;
169                 arg1 = 1;
170         } else
171         if (device->chipset >= 0xa3 &&
172             device->chipset != 0xaa &&
173             device->chipset != 0xac) {
174                 ret = nouveau_channel_new(drm, &drm->client, NVDRM_DEVICE,
175                                           NVDRM_CHAN + 1, NvDmaFB, NvDmaTT,
176                                           &drm->cechan);
177                 if (ret)
178                         NV_ERROR(drm, "failed to create ce channel, %d\n", ret);
179
180                 arg0 = NvDmaFB;
181                 arg1 = NvDmaTT;
182         } else {
183                 arg0 = NvDmaFB;
184                 arg1 = NvDmaTT;
185         }
186
187         ret = nouveau_channel_new(drm, &drm->client, NVDRM_DEVICE, NVDRM_CHAN,
188                                   arg0, arg1, &drm->channel);
189         if (ret) {
190                 NV_ERROR(drm, "failed to create kernel channel, %d\n", ret);
191                 nouveau_accel_fini(drm);
192                 return;
193         }
194
195         ret = nouveau_object_new(nv_object(drm), NVDRM_CHAN, NVDRM_NVSW,
196                                  nouveau_abi16_swclass(drm), NULL, 0, &object);
197         if (ret == 0) {
198                 struct nouveau_software_chan *swch = (void *)object->parent;
199                 ret = RING_SPACE(drm->channel, 2);
200                 if (ret == 0) {
201                         if (device->card_type < NV_C0) {
202                                 BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
203                                 OUT_RING  (drm->channel, NVDRM_NVSW);
204                         } else
205                         if (device->card_type < NV_E0) {
206                                 BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
207                                 OUT_RING  (drm->channel, 0x001f0000);
208                         }
209                 }
210                 swch = (void *)object->parent;
211                 swch->flip = nouveau_flip_complete;
212                 swch->flip_data = drm->channel;
213         }
214
215         if (ret) {
216                 NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
217                 nouveau_accel_fini(drm);
218                 return;
219         }
220
221         if (device->card_type < NV_C0) {
222                 ret = nouveau_gpuobj_new(drm->device, NULL, 32, 0, 0,
223                                         &drm->notify);
224                 if (ret) {
225                         NV_ERROR(drm, "failed to allocate notifier, %d\n", ret);
226                         nouveau_accel_fini(drm);
227                         return;
228                 }
229
230                 ret = nouveau_object_new(nv_object(drm),
231                                          drm->channel->handle, NvNotify0,
232                                          0x003d, &(struct nv_dma_class) {
233                                                 .flags = NV_DMA_TARGET_VRAM |
234                                                          NV_DMA_ACCESS_RDWR,
235                                                 .start = drm->notify->addr,
236                                                 .limit = drm->notify->addr + 31
237                                                 }, sizeof(struct nv_dma_class),
238                                          &object);
239                 if (ret) {
240                         nouveau_accel_fini(drm);
241                         return;
242                 }
243         }
244
245
246         nouveau_bo_move_init(drm);
247 }
248
249 static int nouveau_drm_probe(struct pci_dev *pdev,
250                              const struct pci_device_id *pent)
251 {
252         struct nouveau_device *device;
253         struct apertures_struct *aper;
254         bool boot = false;
255         int ret;
256
257         /* remove conflicting drivers (vesafb, efifb etc) */
258         aper = alloc_apertures(3);
259         if (!aper)
260                 return -ENOMEM;
261
262         aper->ranges[0].base = pci_resource_start(pdev, 1);
263         aper->ranges[0].size = pci_resource_len(pdev, 1);
264         aper->count = 1;
265
266         if (pci_resource_len(pdev, 2)) {
267                 aper->ranges[aper->count].base = pci_resource_start(pdev, 2);
268                 aper->ranges[aper->count].size = pci_resource_len(pdev, 2);
269                 aper->count++;
270         }
271
272         if (pci_resource_len(pdev, 3)) {
273                 aper->ranges[aper->count].base = pci_resource_start(pdev, 3);
274                 aper->ranges[aper->count].size = pci_resource_len(pdev, 3);
275                 aper->count++;
276         }
277
278 #ifdef CONFIG_X86
279         boot = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
280 #endif
281         remove_conflicting_framebuffers(aper, "nouveaufb", boot);
282         kfree(aper);
283
284         ret = nouveau_device_create(pdev, nouveau_name(pdev), pci_name(pdev),
285                                     nouveau_config, nouveau_debug, &device);
286         if (ret)
287                 return ret;
288
289         pci_set_master(pdev);
290
291         ret = drm_get_pci_dev(pdev, pent, &driver);
292         if (ret) {
293                 nouveau_object_ref(NULL, (struct nouveau_object **)&device);
294                 return ret;
295         }
296
297         return 0;
298 }
299
300 #define PCI_CLASS_MULTIMEDIA_HD_AUDIO 0x0403
301
302 static void
303 nouveau_get_hdmi_dev(struct drm_device *dev)
304 {
305         struct nouveau_drm *drm = dev->dev_private;
306         struct pci_dev *pdev = dev->pdev;
307
308         /* subfunction one is a hdmi audio device? */
309         drm->hdmi_device = pci_get_bus_and_slot((unsigned int)pdev->bus->number,
310                                                 PCI_DEVFN(PCI_SLOT(pdev->devfn), 1));
311
312         if (!drm->hdmi_device) {
313                 DRM_INFO("hdmi device  not found %d %d %d\n", pdev->bus->number, PCI_SLOT(pdev->devfn), 1);
314                 return;
315         }
316
317         if ((drm->hdmi_device->class >> 8) != PCI_CLASS_MULTIMEDIA_HD_AUDIO) {
318                 DRM_INFO("possible hdmi device  not audio %d\n", drm->hdmi_device->class);
319                 pci_dev_put(drm->hdmi_device);
320                 drm->hdmi_device = NULL;
321                 return;
322         }
323 }
324
325 static int
326 nouveau_drm_load(struct drm_device *dev, unsigned long flags)
327 {
328         struct pci_dev *pdev = dev->pdev;
329         struct nouveau_device *device;
330         struct nouveau_drm *drm;
331         int ret;
332
333         ret = nouveau_cli_create(pdev, "DRM", sizeof(*drm), (void**)&drm);
334         if (ret)
335                 return ret;
336
337         dev->dev_private = drm;
338         drm->dev = dev;
339
340         INIT_LIST_HEAD(&drm->clients);
341         spin_lock_init(&drm->tile.lock);
342
343         nouveau_get_hdmi_dev(dev);
344
345         /* make sure AGP controller is in a consistent state before we
346          * (possibly) execute vbios init tables (see nouveau_agp.h)
347          */
348         if (drm_pci_device_is_agp(dev) && dev->agp) {
349                 /* dummy device object, doesn't init anything, but allows
350                  * agp code access to registers
351                  */
352                 ret = nouveau_object_new(nv_object(drm), NVDRM_CLIENT,
353                                          NVDRM_DEVICE, 0x0080,
354                                          &(struct nv_device_class) {
355                                                 .device = ~0,
356                                                 .disable =
357                                                  ~(NV_DEVICE_DISABLE_MMIO |
358                                                    NV_DEVICE_DISABLE_IDENTIFY),
359                                                 .debug0 = ~0,
360                                          }, sizeof(struct nv_device_class),
361                                          &drm->device);
362                 if (ret)
363                         goto fail_device;
364
365                 nouveau_agp_reset(drm);
366                 nouveau_object_del(nv_object(drm), NVDRM_CLIENT, NVDRM_DEVICE);
367         }
368
369         ret = nouveau_object_new(nv_object(drm), NVDRM_CLIENT, NVDRM_DEVICE,
370                                  0x0080, &(struct nv_device_class) {
371                                         .device = ~0,
372                                         .disable = 0,
373                                         .debug0 = 0,
374                                  }, sizeof(struct nv_device_class),
375                                  &drm->device);
376         if (ret)
377                 goto fail_device;
378
379         dev->irq_enabled = true;
380
381         /* workaround an odd issue on nvc1 by disabling the device's
382          * nosnoop capability.  hopefully won't cause issues until a
383          * better fix is found - assuming there is one...
384          */
385         device = nv_device(drm->device);
386         if (nv_device(drm->device)->chipset == 0xc1)
387                 nv_mask(device, 0x00088080, 0x00000800, 0x00000000);
388
389         nouveau_vga_init(drm);
390         nouveau_agp_init(drm);
391
392         if (device->card_type >= NV_50) {
393                 ret = nouveau_vm_new(nv_device(drm->device), 0, (1ULL << 40),
394                                      0x1000, &drm->client.base.vm);
395                 if (ret)
396                         goto fail_device;
397         }
398
399         ret = nouveau_ttm_init(drm);
400         if (ret)
401                 goto fail_ttm;
402
403         ret = nouveau_bios_init(dev);
404         if (ret)
405                 goto fail_bios;
406
407         ret = nouveau_display_create(dev);
408         if (ret)
409                 goto fail_dispctor;
410
411         if (dev->mode_config.num_crtc) {
412                 ret = nouveau_display_init(dev);
413                 if (ret)
414                         goto fail_dispinit;
415         }
416
417         nouveau_sysfs_init(dev);
418         nouveau_hwmon_init(dev);
419         nouveau_accel_init(drm);
420         nouveau_fbcon_init(dev);
421
422         if (nouveau_runtime_pm != 0) {
423                 pm_runtime_use_autosuspend(dev->dev);
424                 pm_runtime_set_autosuspend_delay(dev->dev, 5000);
425                 pm_runtime_set_active(dev->dev);
426                 pm_runtime_allow(dev->dev);
427                 pm_runtime_mark_last_busy(dev->dev);
428                 pm_runtime_put(dev->dev);
429         }
430         return 0;
431
432 fail_dispinit:
433         nouveau_display_destroy(dev);
434 fail_dispctor:
435         nouveau_bios_takedown(dev);
436 fail_bios:
437         nouveau_ttm_fini(drm);
438 fail_ttm:
439         nouveau_agp_fini(drm);
440         nouveau_vga_fini(drm);
441 fail_device:
442         nouveau_cli_destroy(&drm->client);
443         return ret;
444 }
445
446 static int
447 nouveau_drm_unload(struct drm_device *dev)
448 {
449         struct nouveau_drm *drm = nouveau_drm(dev);
450
451         pm_runtime_get_sync(dev->dev);
452         nouveau_fbcon_fini(dev);
453         nouveau_accel_fini(drm);
454         nouveau_hwmon_fini(dev);
455         nouveau_sysfs_fini(dev);
456
457         if (dev->mode_config.num_crtc)
458                 nouveau_display_fini(dev);
459         nouveau_display_destroy(dev);
460
461         nouveau_bios_takedown(dev);
462
463         nouveau_ttm_fini(drm);
464         nouveau_agp_fini(drm);
465         nouveau_vga_fini(drm);
466
467         if (drm->hdmi_device)
468                 pci_dev_put(drm->hdmi_device);
469         nouveau_cli_destroy(&drm->client);
470         return 0;
471 }
472
473 static void
474 nouveau_drm_remove(struct pci_dev *pdev)
475 {
476         struct drm_device *dev = pci_get_drvdata(pdev);
477         struct nouveau_drm *drm = nouveau_drm(dev);
478         struct nouveau_object *device;
479
480         dev->irq_enabled = false;
481         device = drm->client.base.device;
482         drm_put_dev(dev);
483
484         nouveau_object_ref(NULL, &device);
485         nouveau_object_debug();
486 }
487
488 static int
489 nouveau_do_suspend(struct drm_device *dev)
490 {
491         struct nouveau_drm *drm = nouveau_drm(dev);
492         struct nouveau_cli *cli;
493         int ret;
494
495         if (dev->mode_config.num_crtc) {
496                 NV_INFO(drm, "suspending display...\n");
497                 ret = nouveau_display_suspend(dev);
498                 if (ret)
499                         return ret;
500         }
501
502         NV_INFO(drm, "evicting buffers...\n");
503         ttm_bo_evict_mm(&drm->ttm.bdev, TTM_PL_VRAM);
504
505         NV_INFO(drm, "waiting for kernel channels to go idle...\n");
506         if (drm->cechan) {
507                 ret = nouveau_channel_idle(drm->cechan);
508                 if (ret)
509                         goto fail_display;
510         }
511
512         if (drm->channel) {
513                 ret = nouveau_channel_idle(drm->channel);
514                 if (ret)
515                         goto fail_display;
516         }
517
518         NV_INFO(drm, "suspending client object trees...\n");
519         if (drm->fence && nouveau_fence(drm)->suspend) {
520                 if (!nouveau_fence(drm)->suspend(drm)) {
521                         ret = -ENOMEM;
522                         goto fail_display;
523                 }
524         }
525
526         list_for_each_entry(cli, &drm->clients, head) {
527                 ret = nouveau_client_fini(&cli->base, true);
528                 if (ret)
529                         goto fail_client;
530         }
531
532         NV_INFO(drm, "suspending kernel object tree...\n");
533         ret = nouveau_client_fini(&drm->client.base, true);
534         if (ret)
535                 goto fail_client;
536
537         nouveau_agp_fini(drm);
538         return 0;
539
540 fail_client:
541         list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
542                 nouveau_client_init(&cli->base);
543         }
544
545         if (drm->fence && nouveau_fence(drm)->resume)
546                 nouveau_fence(drm)->resume(drm);
547
548 fail_display:
549         if (dev->mode_config.num_crtc) {
550                 NV_INFO(drm, "resuming display...\n");
551                 nouveau_display_resume(dev);
552         }
553         return ret;
554 }
555
556 int nouveau_pmops_suspend(struct device *dev)
557 {
558         struct pci_dev *pdev = to_pci_dev(dev);
559         struct drm_device *drm_dev = pci_get_drvdata(pdev);
560         int ret;
561
562         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
563             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
564                 return 0;
565
566         if (drm_dev->mode_config.num_crtc)
567                 nouveau_fbcon_set_suspend(drm_dev, 1);
568
569         ret = nouveau_do_suspend(drm_dev);
570         if (ret)
571                 return ret;
572
573         pci_save_state(pdev);
574         pci_disable_device(pdev);
575         pci_set_power_state(pdev, PCI_D3hot);
576         return 0;
577 }
578
579 static int
580 nouveau_do_resume(struct drm_device *dev)
581 {
582         struct nouveau_drm *drm = nouveau_drm(dev);
583         struct nouveau_cli *cli;
584
585         NV_INFO(drm, "re-enabling device...\n");
586
587         nouveau_agp_reset(drm);
588
589         NV_INFO(drm, "resuming kernel object tree...\n");
590         nouveau_client_init(&drm->client.base);
591         nouveau_agp_init(drm);
592
593         NV_INFO(drm, "resuming client object trees...\n");
594         if (drm->fence && nouveau_fence(drm)->resume)
595                 nouveau_fence(drm)->resume(drm);
596
597         list_for_each_entry(cli, &drm->clients, head) {
598                 nouveau_client_init(&cli->base);
599         }
600
601         nouveau_run_vbios_init(dev);
602
603         if (dev->mode_config.num_crtc) {
604                 NV_INFO(drm, "resuming display...\n");
605                 nouveau_display_repin(dev);
606         }
607
608         return 0;
609 }
610
611 int nouveau_pmops_resume(struct device *dev)
612 {
613         struct pci_dev *pdev = to_pci_dev(dev);
614         struct drm_device *drm_dev = pci_get_drvdata(pdev);
615         int ret;
616
617         if (drm_dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
618             drm_dev->switch_power_state == DRM_SWITCH_POWER_DYNAMIC_OFF)
619                 return 0;
620
621         pci_set_power_state(pdev, PCI_D0);
622         pci_restore_state(pdev);
623         ret = pci_enable_device(pdev);
624         if (ret)
625                 return ret;
626         pci_set_master(pdev);
627
628         ret = nouveau_do_resume(drm_dev);
629         if (ret)
630                 return ret;
631         if (drm_dev->mode_config.num_crtc)
632                 nouveau_fbcon_set_suspend(drm_dev, 0);
633
634         nouveau_fbcon_zfill_all(drm_dev);
635         if (drm_dev->mode_config.num_crtc)
636                 nouveau_display_resume(drm_dev);
637         return 0;
638 }
639
640 static int nouveau_pmops_freeze(struct device *dev)
641 {
642         struct pci_dev *pdev = to_pci_dev(dev);
643         struct drm_device *drm_dev = pci_get_drvdata(pdev);
644         int ret;
645
646         if (drm_dev->mode_config.num_crtc)
647                 nouveau_fbcon_set_suspend(drm_dev, 1);
648
649         ret = nouveau_do_suspend(drm_dev);
650         return ret;
651 }
652
653 static int nouveau_pmops_thaw(struct device *dev)
654 {
655         struct pci_dev *pdev = to_pci_dev(dev);
656         struct drm_device *drm_dev = pci_get_drvdata(pdev);
657         int ret;
658
659         ret = nouveau_do_resume(drm_dev);
660         if (ret)
661                 return ret;
662         if (drm_dev->mode_config.num_crtc)
663                 nouveau_fbcon_set_suspend(drm_dev, 0);
664         nouveau_fbcon_zfill_all(drm_dev);
665         if (drm_dev->mode_config.num_crtc)
666                 nouveau_display_resume(drm_dev);
667         return 0;
668 }
669
670
671 static int
672 nouveau_drm_open(struct drm_device *dev, struct drm_file *fpriv)
673 {
674         struct pci_dev *pdev = dev->pdev;
675         struct nouveau_drm *drm = nouveau_drm(dev);
676         struct nouveau_cli *cli;
677         char name[32], tmpname[TASK_COMM_LEN];
678         int ret;
679
680         /* need to bring up power immediately if opening device */
681         ret = pm_runtime_get_sync(dev->dev);
682         if (ret < 0)
683                 return ret;
684
685         get_task_comm(tmpname, current);
686         snprintf(name, sizeof(name), "%s[%d]", tmpname, pid_nr(fpriv->pid));
687
688         ret = nouveau_cli_create(pdev, name, sizeof(*cli), (void **)&cli);
689         if (ret)
690                 goto out_suspend;
691
692         if (nv_device(drm->device)->card_type >= NV_50) {
693                 ret = nouveau_vm_new(nv_device(drm->device), 0, (1ULL << 40),
694                                      0x1000, &cli->base.vm);
695                 if (ret) {
696                         nouveau_cli_destroy(cli);
697                         goto out_suspend;
698                 }
699         }
700
701         fpriv->driver_priv = cli;
702
703         mutex_lock(&drm->client.mutex);
704         list_add(&cli->head, &drm->clients);
705         mutex_unlock(&drm->client.mutex);
706
707 out_suspend:
708         pm_runtime_mark_last_busy(dev->dev);
709         pm_runtime_put_autosuspend(dev->dev);
710
711         return ret;
712 }
713
714 static void
715 nouveau_drm_preclose(struct drm_device *dev, struct drm_file *fpriv)
716 {
717         struct nouveau_cli *cli = nouveau_cli(fpriv);
718         struct nouveau_drm *drm = nouveau_drm(dev);
719
720         pm_runtime_get_sync(dev->dev);
721
722         if (cli->abi16)
723                 nouveau_abi16_fini(cli->abi16);
724
725         mutex_lock(&drm->client.mutex);
726         list_del(&cli->head);
727         mutex_unlock(&drm->client.mutex);
728
729 }
730
731 static void
732 nouveau_drm_postclose(struct drm_device *dev, struct drm_file *fpriv)
733 {
734         struct nouveau_cli *cli = nouveau_cli(fpriv);
735         nouveau_cli_destroy(cli);
736         pm_runtime_mark_last_busy(dev->dev);
737         pm_runtime_put_autosuspend(dev->dev);
738 }
739
740 static const struct drm_ioctl_desc
741 nouveau_ioctls[] = {
742         DRM_IOCTL_DEF_DRV(NOUVEAU_GETPARAM, nouveau_abi16_ioctl_getparam, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
743         DRM_IOCTL_DEF_DRV(NOUVEAU_SETPARAM, nouveau_abi16_ioctl_setparam, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
744         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_ALLOC, nouveau_abi16_ioctl_channel_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
745         DRM_IOCTL_DEF_DRV(NOUVEAU_CHANNEL_FREE, nouveau_abi16_ioctl_channel_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
746         DRM_IOCTL_DEF_DRV(NOUVEAU_GROBJ_ALLOC, nouveau_abi16_ioctl_grobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
747         DRM_IOCTL_DEF_DRV(NOUVEAU_NOTIFIEROBJ_ALLOC, nouveau_abi16_ioctl_notifierobj_alloc, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
748         DRM_IOCTL_DEF_DRV(NOUVEAU_GPUOBJ_FREE, nouveau_abi16_ioctl_gpuobj_free, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
749         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_NEW, nouveau_gem_ioctl_new, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
750         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_PUSHBUF, nouveau_gem_ioctl_pushbuf, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
751         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_PREP, nouveau_gem_ioctl_cpu_prep, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
752         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_CPU_FINI, nouveau_gem_ioctl_cpu_fini, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
753         DRM_IOCTL_DEF_DRV(NOUVEAU_GEM_INFO, nouveau_gem_ioctl_info, DRM_UNLOCKED|DRM_AUTH|DRM_RENDER_ALLOW),
754 };
755
756 long nouveau_drm_ioctl(struct file *filp,
757                        unsigned int cmd, unsigned long arg)
758 {
759         struct drm_file *file_priv = filp->private_data;
760         struct drm_device *dev;
761         long ret;
762         dev = file_priv->minor->dev;
763
764         ret = pm_runtime_get_sync(dev->dev);
765         if (ret < 0)
766                 return ret;
767
768         ret = drm_ioctl(filp, cmd, arg);
769
770         pm_runtime_mark_last_busy(dev->dev);
771         pm_runtime_put_autosuspend(dev->dev);
772         return ret;
773 }
774 static const struct file_operations
775 nouveau_driver_fops = {
776         .owner = THIS_MODULE,
777         .open = drm_open,
778         .release = drm_release,
779         .unlocked_ioctl = nouveau_drm_ioctl,
780         .mmap = nouveau_ttm_mmap,
781         .poll = drm_poll,
782         .read = drm_read,
783 #if defined(CONFIG_COMPAT)
784         .compat_ioctl = nouveau_compat_ioctl,
785 #endif
786         .llseek = noop_llseek,
787 };
788
789 static struct drm_driver
790 driver = {
791         .driver_features =
792                 DRIVER_USE_AGP |
793                 DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME | DRIVER_RENDER,
794
795         .load = nouveau_drm_load,
796         .unload = nouveau_drm_unload,
797         .open = nouveau_drm_open,
798         .preclose = nouveau_drm_preclose,
799         .postclose = nouveau_drm_postclose,
800         .lastclose = nouveau_vga_lastclose,
801
802 #if defined(CONFIG_DEBUG_FS)
803         .debugfs_init = nouveau_debugfs_init,
804         .debugfs_cleanup = nouveau_debugfs_takedown,
805 #endif
806
807         .get_vblank_counter = drm_vblank_count,
808         .enable_vblank = nouveau_display_vblank_enable,
809         .disable_vblank = nouveau_display_vblank_disable,
810         .get_scanout_position = nouveau_display_scanoutpos,
811         .get_vblank_timestamp = nouveau_display_vblstamp,
812
813         .ioctls = nouveau_ioctls,
814         .num_ioctls = ARRAY_SIZE(nouveau_ioctls),
815         .fops = &nouveau_driver_fops,
816
817         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
818         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
819         .gem_prime_export = drm_gem_prime_export,
820         .gem_prime_import = drm_gem_prime_import,
821         .gem_prime_pin = nouveau_gem_prime_pin,
822         .gem_prime_unpin = nouveau_gem_prime_unpin,
823         .gem_prime_get_sg_table = nouveau_gem_prime_get_sg_table,
824         .gem_prime_import_sg_table = nouveau_gem_prime_import_sg_table,
825         .gem_prime_vmap = nouveau_gem_prime_vmap,
826         .gem_prime_vunmap = nouveau_gem_prime_vunmap,
827
828         .gem_free_object = nouveau_gem_object_del,
829         .gem_open_object = nouveau_gem_object_open,
830         .gem_close_object = nouveau_gem_object_close,
831
832         .dumb_create = nouveau_display_dumb_create,
833         .dumb_map_offset = nouveau_display_dumb_map_offset,
834         .dumb_destroy = drm_gem_dumb_destroy,
835
836         .name = DRIVER_NAME,
837         .desc = DRIVER_DESC,
838 #ifdef GIT_REVISION
839         .date = GIT_REVISION,
840 #else
841         .date = DRIVER_DATE,
842 #endif
843         .major = DRIVER_MAJOR,
844         .minor = DRIVER_MINOR,
845         .patchlevel = DRIVER_PATCHLEVEL,
846 };
847
848 static struct pci_device_id
849 nouveau_drm_pci_table[] = {
850         {
851                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
852                 .class = PCI_BASE_CLASS_DISPLAY << 16,
853                 .class_mask  = 0xff << 16,
854         },
855         {
856                 PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
857                 .class = PCI_BASE_CLASS_DISPLAY << 16,
858                 .class_mask  = 0xff << 16,
859         },
860         {}
861 };
862
863 static int nouveau_pmops_runtime_suspend(struct device *dev)
864 {
865         struct pci_dev *pdev = to_pci_dev(dev);
866         struct drm_device *drm_dev = pci_get_drvdata(pdev);
867         int ret;
868
869         if (nouveau_runtime_pm == 0) {
870                 pm_runtime_forbid(dev);
871                 return -EBUSY;
872         }
873
874         /* are we optimus enabled? */
875         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
876                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
877                 pm_runtime_forbid(dev);
878                 return -EBUSY;
879         }
880
881         nv_debug_level(SILENT);
882         drm_kms_helper_poll_disable(drm_dev);
883         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_OFF);
884         nouveau_switcheroo_optimus_dsm();
885         ret = nouveau_do_suspend(drm_dev);
886         pci_save_state(pdev);
887         pci_disable_device(pdev);
888         pci_set_power_state(pdev, PCI_D3cold);
889         drm_dev->switch_power_state = DRM_SWITCH_POWER_DYNAMIC_OFF;
890         return ret;
891 }
892
893 static int nouveau_pmops_runtime_resume(struct device *dev)
894 {
895         struct pci_dev *pdev = to_pci_dev(dev);
896         struct drm_device *drm_dev = pci_get_drvdata(pdev);
897         struct nouveau_device *device = nouveau_dev(drm_dev);
898         int ret;
899
900         if (nouveau_runtime_pm == 0)
901                 return -EINVAL;
902
903         pci_set_power_state(pdev, PCI_D0);
904         pci_restore_state(pdev);
905         ret = pci_enable_device(pdev);
906         if (ret)
907                 return ret;
908         pci_set_master(pdev);
909
910         ret = nouveau_do_resume(drm_dev);
911         if (drm_dev->mode_config.num_crtc)
912                 nouveau_display_resume(drm_dev);
913         drm_kms_helper_poll_enable(drm_dev);
914         /* do magic */
915         nv_mask(device, 0x88488, (1 << 25), (1 << 25));
916         vga_switcheroo_set_dynamic_switch(pdev, VGA_SWITCHEROO_ON);
917         drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
918         nv_debug_level(NORMAL);
919         return ret;
920 }
921
922 static int nouveau_pmops_runtime_idle(struct device *dev)
923 {
924         struct pci_dev *pdev = to_pci_dev(dev);
925         struct drm_device *drm_dev = pci_get_drvdata(pdev);
926         struct nouveau_drm *drm = nouveau_drm(drm_dev);
927         struct drm_crtc *crtc;
928
929         if (nouveau_runtime_pm == 0) {
930                 pm_runtime_forbid(dev);
931                 return -EBUSY;
932         }
933
934         /* are we optimus enabled? */
935         if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
936                 DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
937                 pm_runtime_forbid(dev);
938                 return -EBUSY;
939         }
940
941         /* if we have a hdmi audio device - make sure it has a driver loaded */
942         if (drm->hdmi_device) {
943                 if (!drm->hdmi_device->driver) {
944                         DRM_DEBUG_DRIVER("failing to power off - no HDMI audio driver loaded\n");
945                         pm_runtime_mark_last_busy(dev);
946                         return -EBUSY;
947                 }
948         }
949
950         list_for_each_entry(crtc, &drm->dev->mode_config.crtc_list, head) {
951                 if (crtc->enabled) {
952                         DRM_DEBUG_DRIVER("failing to power off - crtc active\n");
953                         return -EBUSY;
954                 }
955         }
956         pm_runtime_mark_last_busy(dev);
957         pm_runtime_autosuspend(dev);
958         /* we don't want the main rpm_idle to call suspend - we want to autosuspend */
959         return 1;
960 }
961
962 static const struct dev_pm_ops nouveau_pm_ops = {
963         .suspend = nouveau_pmops_suspend,
964         .resume = nouveau_pmops_resume,
965         .freeze = nouveau_pmops_freeze,
966         .thaw = nouveau_pmops_thaw,
967         .poweroff = nouveau_pmops_freeze,
968         .restore = nouveau_pmops_resume,
969         .runtime_suspend = nouveau_pmops_runtime_suspend,
970         .runtime_resume = nouveau_pmops_runtime_resume,
971         .runtime_idle = nouveau_pmops_runtime_idle,
972 };
973
974 static struct pci_driver
975 nouveau_drm_pci_driver = {
976         .name = "nouveau",
977         .id_table = nouveau_drm_pci_table,
978         .probe = nouveau_drm_probe,
979         .remove = nouveau_drm_remove,
980         .driver.pm = &nouveau_pm_ops,
981 };
982
983 static int __init
984 nouveau_drm_init(void)
985 {
986         if (nouveau_modeset == -1) {
987 #ifdef CONFIG_VGA_CONSOLE
988                 if (vgacon_text_force())
989                         nouveau_modeset = 0;
990 #endif
991         }
992
993         if (!nouveau_modeset)
994                 return 0;
995
996         nouveau_register_dsm_handler();
997         return drm_pci_init(&driver, &nouveau_drm_pci_driver);
998 }
999
1000 static void __exit
1001 nouveau_drm_exit(void)
1002 {
1003         if (!nouveau_modeset)
1004                 return;
1005
1006         drm_pci_exit(&driver, &nouveau_drm_pci_driver);
1007         nouveau_unregister_dsm_handler();
1008 }
1009
1010 module_init(nouveau_drm_init);
1011 module_exit(nouveau_drm_exit);
1012
1013 MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
1014 MODULE_AUTHOR(DRIVER_AUTHOR);
1015 MODULE_DESCRIPTION(DRIVER_DESC);
1016 MODULE_LICENSE("GPL and additional rights");