Merge tag 'drm-qemu-20161121' of git://git.kraxel.org/linux into drm-next
[linux-2.6-microblaze.git] / drivers / gpu / drm / nouveau / nouveau_display.c
1 /*
2  * Copyright (C) 2008 Maarten Maathuis.
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining
6  * a copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sublicense, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the
14  * next paragraph) shall be included in all copies or substantial
15  * portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24  *
25  */
26
27 #include <acpi/video.h>
28 #include <drm/drmP.h>
29 #include <drm/drm_atomic.h>
30 #include <drm/drm_atomic_helper.h>
31 #include <drm/drm_crtc_helper.h>
32
33 #include <nvif/class.h>
34
35 #include "nouveau_fbcon.h"
36 #include "dispnv04/hw.h"
37 #include "nouveau_crtc.h"
38 #include "nouveau_dma.h"
39 #include "nouveau_gem.h"
40 #include "nouveau_connector.h"
41 #include "nv50_display.h"
42
43 #include "nouveau_fence.h"
44
45 #include <nvif/cl0046.h>
46 #include <nvif/event.h>
47
48 static int
49 nouveau_display_vblank_handler(struct nvif_notify *notify)
50 {
51         struct nouveau_crtc *nv_crtc =
52                 container_of(notify, typeof(*nv_crtc), vblank);
53         drm_crtc_handle_vblank(&nv_crtc->base);
54         return NVIF_NOTIFY_KEEP;
55 }
56
57 int
58 nouveau_display_vblank_enable(struct drm_device *dev, unsigned int pipe)
59 {
60         struct drm_crtc *crtc;
61         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
62                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
63                 if (nv_crtc->index == pipe) {
64                         nvif_notify_get(&nv_crtc->vblank);
65                         return 0;
66                 }
67         }
68         return -EINVAL;
69 }
70
71 void
72 nouveau_display_vblank_disable(struct drm_device *dev, unsigned int pipe)
73 {
74         struct drm_crtc *crtc;
75         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
76                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
77                 if (nv_crtc->index == pipe) {
78                         nvif_notify_put(&nv_crtc->vblank);
79                         return;
80                 }
81         }
82 }
83
84 static inline int
85 calc(int blanks, int blanke, int total, int line)
86 {
87         if (blanke >= blanks) {
88                 if (line >= blanks)
89                         line -= total;
90         } else {
91                 if (line >= blanks)
92                         line -= total;
93                 line -= blanke + 1;
94         }
95         return line;
96 }
97
98 static int
99 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
100                                 ktime_t *stime, ktime_t *etime)
101 {
102         struct {
103                 struct nv04_disp_mthd_v0 base;
104                 struct nv04_disp_scanoutpos_v0 scan;
105         } args = {
106                 .base.method = NV04_DISP_SCANOUTPOS,
107                 .base.head = nouveau_crtc(crtc)->index,
108         };
109         struct nouveau_display *disp = nouveau_display(crtc->dev);
110         struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
111         int ret, retry = 1;
112
113         do {
114                 ret = nvif_mthd(&disp->disp, 0, &args, sizeof(args));
115                 if (ret != 0)
116                         return 0;
117
118                 if (args.scan.vline) {
119                         ret |= DRM_SCANOUTPOS_ACCURATE;
120                         ret |= DRM_SCANOUTPOS_VALID;
121                         break;
122                 }
123
124                 if (retry) ndelay(vblank->linedur_ns);
125         } while (retry--);
126
127         *hpos = args.scan.hline;
128         *vpos = calc(args.scan.vblanks, args.scan.vblanke,
129                      args.scan.vtotal, args.scan.vline);
130         if (stime) *stime = ns_to_ktime(args.scan.time[0]);
131         if (etime) *etime = ns_to_ktime(args.scan.time[1]);
132
133         if (*vpos < 0)
134                 ret |= DRM_SCANOUTPOS_IN_VBLANK;
135         return ret;
136 }
137
138 int
139 nouveau_display_scanoutpos(struct drm_device *dev, unsigned int pipe,
140                            unsigned int flags, int *vpos, int *hpos,
141                            ktime_t *stime, ktime_t *etime,
142                            const struct drm_display_mode *mode)
143 {
144         struct drm_crtc *crtc;
145
146         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
147                 if (nouveau_crtc(crtc)->index == pipe) {
148                         return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
149                                                                stime, etime);
150                 }
151         }
152
153         return 0;
154 }
155
156 int
157 nouveau_display_vblstamp(struct drm_device *dev, unsigned int pipe,
158                          int *max_error, struct timeval *time, unsigned flags)
159 {
160         struct drm_crtc *crtc;
161
162         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
163                 if (nouveau_crtc(crtc)->index == pipe) {
164                         struct drm_display_mode *mode;
165                         if (dev->mode_config.funcs->atomic_commit)
166                                 mode = &crtc->state->adjusted_mode;
167                         else
168                                 mode = &crtc->hwmode;
169                         return drm_calc_vbltimestamp_from_scanoutpos(dev,
170                                         pipe, max_error, time, flags, mode);
171                 }
172         }
173
174         return -EINVAL;
175 }
176
177 static void
178 nouveau_display_vblank_fini(struct drm_device *dev)
179 {
180         struct drm_crtc *crtc;
181
182         drm_vblank_cleanup(dev);
183
184         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
185                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
186                 nvif_notify_fini(&nv_crtc->vblank);
187         }
188 }
189
190 static int
191 nouveau_display_vblank_init(struct drm_device *dev)
192 {
193         struct nouveau_display *disp = nouveau_display(dev);
194         struct drm_crtc *crtc;
195         int ret;
196
197         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
198                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
199                 ret = nvif_notify_init(&disp->disp,
200                                        nouveau_display_vblank_handler, false,
201                                        NV04_DISP_NTFY_VBLANK,
202                                        &(struct nvif_notify_head_req_v0) {
203                                         .head = nv_crtc->index,
204                                        },
205                                        sizeof(struct nvif_notify_head_req_v0),
206                                        sizeof(struct nvif_notify_head_rep_v0),
207                                        &nv_crtc->vblank);
208                 if (ret) {
209                         nouveau_display_vblank_fini(dev);
210                         return ret;
211                 }
212         }
213
214         ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
215         if (ret) {
216                 nouveau_display_vblank_fini(dev);
217                 return ret;
218         }
219
220         return 0;
221 }
222
223 static void
224 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
225 {
226         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
227
228         if (fb->nvbo)
229                 drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
230
231         drm_framebuffer_cleanup(drm_fb);
232         kfree(fb);
233 }
234
235 static int
236 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
237                                        struct drm_file *file_priv,
238                                        unsigned int *handle)
239 {
240         struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
241
242         return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
243 }
244
245 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
246         .destroy = nouveau_user_framebuffer_destroy,
247         .create_handle = nouveau_user_framebuffer_create_handle,
248 };
249
250 int
251 nouveau_framebuffer_new(struct drm_device *dev,
252                         const struct drm_mode_fb_cmd2 *mode_cmd,
253                         struct nouveau_bo *nvbo,
254                         struct nouveau_framebuffer **pfb)
255 {
256         struct nouveau_framebuffer *fb;
257         int ret;
258
259         if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
260                 return -ENOMEM;
261
262         drm_helper_mode_fill_fb_struct(&fb->base, mode_cmd);
263         fb->nvbo = nvbo;
264
265         ret = drm_framebuffer_init(dev, &fb->base, &nouveau_framebuffer_funcs);
266         if (ret)
267                 kfree(fb);
268         return ret;
269 }
270
271 struct drm_framebuffer *
272 nouveau_user_framebuffer_create(struct drm_device *dev,
273                                 struct drm_file *file_priv,
274                                 const struct drm_mode_fb_cmd2 *mode_cmd)
275 {
276         struct nouveau_framebuffer *fb;
277         struct nouveau_bo *nvbo;
278         struct drm_gem_object *gem;
279         int ret;
280
281         gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
282         if (!gem)
283                 return ERR_PTR(-ENOENT);
284         nvbo = nouveau_gem_object(gem);
285
286         ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb);
287         if (ret == 0)
288                 return &fb->base;
289
290         drm_gem_object_unreference_unlocked(gem);
291         return ERR_PTR(ret);
292 }
293
294 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
295         .fb_create = nouveau_user_framebuffer_create,
296         .output_poll_changed = nouveau_fbcon_output_poll_changed,
297 };
298
299
300 struct nouveau_drm_prop_enum_list {
301         u8 gen_mask;
302         int type;
303         char *name;
304 };
305
306 static struct nouveau_drm_prop_enum_list underscan[] = {
307         { 6, UNDERSCAN_AUTO, "auto" },
308         { 6, UNDERSCAN_OFF, "off" },
309         { 6, UNDERSCAN_ON, "on" },
310         {}
311 };
312
313 static struct nouveau_drm_prop_enum_list dither_mode[] = {
314         { 7, DITHERING_MODE_AUTO, "auto" },
315         { 7, DITHERING_MODE_OFF, "off" },
316         { 1, DITHERING_MODE_ON, "on" },
317         { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
318         { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
319         { 4, DITHERING_MODE_TEMPORAL, "temporal" },
320         {}
321 };
322
323 static struct nouveau_drm_prop_enum_list dither_depth[] = {
324         { 6, DITHERING_DEPTH_AUTO, "auto" },
325         { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
326         { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
327         {}
328 };
329
330 #define PROP_ENUM(p,gen,n,list) do {                                           \
331         struct nouveau_drm_prop_enum_list *l = (list);                         \
332         int c = 0;                                                             \
333         while (l->gen_mask) {                                                  \
334                 if (l->gen_mask & (1 << (gen)))                                \
335                         c++;                                                   \
336                 l++;                                                           \
337         }                                                                      \
338         if (c) {                                                               \
339                 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
340                 l = (list);                                                    \
341                 c = 0;                                                         \
342                 while (p && l->gen_mask) {                                     \
343                         if (l->gen_mask & (1 << (gen))) {                      \
344                                 drm_property_add_enum(p, c, l->type, l->name); \
345                                 c++;                                           \
346                         }                                                      \
347                         l++;                                                   \
348                 }                                                              \
349         }                                                                      \
350 } while(0)
351
352 #ifdef CONFIG_ACPI
353
354 /*
355  * Hans de Goede: This define belongs in acpi/video.h, I've submitted a patch
356  * to the acpi subsys to move it there from drivers/acpi/acpi_video.c .
357  * This should be dropped once that is merged.
358  */
359 #ifndef ACPI_VIDEO_NOTIFY_PROBE
360 #define ACPI_VIDEO_NOTIFY_PROBE                 0x81
361 #endif
362
363 static void
364 nouveau_display_acpi_work(struct work_struct *work)
365 {
366         struct nouveau_drm *drm = container_of(work, typeof(*drm), acpi_work);
367
368         pm_runtime_get_sync(drm->dev->dev);
369
370         drm_helper_hpd_irq_event(drm->dev);
371
372         pm_runtime_mark_last_busy(drm->dev->dev);
373         pm_runtime_put_sync(drm->dev->dev);
374 }
375
376 static int
377 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
378                           void *data)
379 {
380         struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
381         struct acpi_bus_event *info = data;
382
383         if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
384                 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
385                         /*
386                          * This may be the only indication we receive of a
387                          * connector hotplug on a runtime suspended GPU,
388                          * schedule acpi_work to check.
389                          */
390                         schedule_work(&drm->acpi_work);
391
392                         /* acpi-video should not generate keypresses for this */
393                         return NOTIFY_BAD;
394                 }
395         }
396
397         return NOTIFY_DONE;
398 }
399 #endif
400
401 int
402 nouveau_display_init(struct drm_device *dev)
403 {
404         struct nouveau_display *disp = nouveau_display(dev);
405         struct nouveau_drm *drm = nouveau_drm(dev);
406         struct drm_connector *connector;
407         int ret;
408
409         ret = disp->init(dev);
410         if (ret)
411                 return ret;
412
413         /* enable polling for external displays */
414         drm_kms_helper_poll_enable(dev);
415
416         /* enable hotplug interrupts */
417         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
418                 struct nouveau_connector *conn = nouveau_connector(connector);
419                 nvif_notify_get(&conn->hpd);
420         }
421
422         /* enable flip completion events */
423         nvif_notify_get(&drm->flip);
424         return ret;
425 }
426
427 void
428 nouveau_display_fini(struct drm_device *dev, bool suspend)
429 {
430         struct nouveau_display *disp = nouveau_display(dev);
431         struct nouveau_drm *drm = nouveau_drm(dev);
432         struct drm_connector *connector;
433         struct drm_crtc *crtc;
434
435         if (!suspend)
436                 drm_crtc_force_disable_all(dev);
437
438         /* Make sure that drm and hw vblank irqs get properly disabled. */
439         drm_for_each_crtc(crtc, dev)
440                 drm_crtc_vblank_off(crtc);
441
442         /* disable flip completion events */
443         nvif_notify_put(&drm->flip);
444
445         /* disable hotplug interrupts */
446         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
447                 struct nouveau_connector *conn = nouveau_connector(connector);
448                 nvif_notify_put(&conn->hpd);
449         }
450
451         drm_kms_helper_poll_disable(dev);
452         disp->fini(dev);
453 }
454
455 static void
456 nouveau_display_create_properties(struct drm_device *dev)
457 {
458         struct nouveau_display *disp = nouveau_display(dev);
459         int gen;
460
461         if (disp->disp.oclass < NV50_DISP)
462                 gen = 0;
463         else
464         if (disp->disp.oclass < GF110_DISP)
465                 gen = 1;
466         else
467                 gen = 2;
468
469         PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
470         PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
471         PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
472
473         disp->underscan_hborder_property =
474                 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
475
476         disp->underscan_vborder_property =
477                 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
478
479         if (gen < 1)
480                 return;
481
482         /* -90..+90 */
483         disp->vibrant_hue_property =
484                 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
485
486         /* -100..+100 */
487         disp->color_vibrance_property =
488                 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
489 }
490
491 int
492 nouveau_display_create(struct drm_device *dev)
493 {
494         struct nouveau_drm *drm = nouveau_drm(dev);
495         struct nvkm_device *device = nvxx_device(&drm->device);
496         struct nouveau_display *disp;
497         int ret;
498
499         disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
500         if (!disp)
501                 return -ENOMEM;
502
503         drm_mode_config_init(dev);
504         drm_mode_create_scaling_mode_property(dev);
505         drm_mode_create_dvi_i_properties(dev);
506
507         dev->mode_config.funcs = &nouveau_mode_config_funcs;
508         dev->mode_config.fb_base = device->func->resource_addr(device, 1);
509
510         dev->mode_config.min_width = 0;
511         dev->mode_config.min_height = 0;
512         if (drm->device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
513                 dev->mode_config.max_width = 2048;
514                 dev->mode_config.max_height = 2048;
515         } else
516         if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
517                 dev->mode_config.max_width = 4096;
518                 dev->mode_config.max_height = 4096;
519         } else
520         if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI) {
521                 dev->mode_config.max_width = 8192;
522                 dev->mode_config.max_height = 8192;
523         } else {
524                 dev->mode_config.max_width = 16384;
525                 dev->mode_config.max_height = 16384;
526         }
527
528         dev->mode_config.preferred_depth = 24;
529         dev->mode_config.prefer_shadow = 1;
530
531         if (drm->device.info.chipset < 0x11)
532                 dev->mode_config.async_page_flip = false;
533         else
534                 dev->mode_config.async_page_flip = true;
535
536         drm_kms_helper_poll_init(dev);
537         drm_kms_helper_poll_disable(dev);
538
539         if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
540                 static const u16 oclass[] = {
541                         GP102_DISP,
542                         GP100_DISP,
543                         GM200_DISP,
544                         GM107_DISP,
545                         GK110_DISP,
546                         GK104_DISP,
547                         GF110_DISP,
548                         GT214_DISP,
549                         GT206_DISP,
550                         GT200_DISP,
551                         G82_DISP,
552                         NV50_DISP,
553                         NV04_DISP,
554                 };
555                 int i;
556
557                 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
558                         ret = nvif_object_init(&drm->device.object, 0,
559                                                oclass[i], NULL, 0, &disp->disp);
560                 }
561
562                 if (ret == 0) {
563                         nouveau_display_create_properties(dev);
564                         if (disp->disp.oclass < NV50_DISP)
565                                 ret = nv04_display_create(dev);
566                         else
567                                 ret = nv50_display_create(dev);
568                 }
569         } else {
570                 ret = 0;
571         }
572
573         if (ret)
574                 goto disp_create_err;
575
576         drm_mode_config_reset(dev);
577
578         if (dev->mode_config.num_crtc) {
579                 ret = nouveau_display_vblank_init(dev);
580                 if (ret)
581                         goto vblank_err;
582         }
583
584         nouveau_backlight_init(dev);
585 #ifdef CONFIG_ACPI
586         INIT_WORK(&drm->acpi_work, nouveau_display_acpi_work);
587         drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
588         register_acpi_notifier(&drm->acpi_nb);
589 #endif
590
591         return 0;
592
593 vblank_err:
594         disp->dtor(dev);
595 disp_create_err:
596         drm_kms_helper_poll_fini(dev);
597         drm_mode_config_cleanup(dev);
598         return ret;
599 }
600
601 void
602 nouveau_display_destroy(struct drm_device *dev)
603 {
604         struct nouveau_display *disp = nouveau_display(dev);
605
606 #ifdef CONFIG_ACPI
607         unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb);
608 #endif
609         nouveau_backlight_exit(dev);
610         nouveau_display_vblank_fini(dev);
611
612         drm_kms_helper_poll_fini(dev);
613         drm_mode_config_cleanup(dev);
614
615         if (disp->dtor)
616                 disp->dtor(dev);
617
618         nvif_object_fini(&disp->disp);
619
620         nouveau_drm(dev)->display = NULL;
621         kfree(disp);
622 }
623
624 static int
625 nouveau_atomic_disable_connector(struct drm_atomic_state *state,
626                                  struct drm_connector *connector)
627 {
628         struct drm_connector_state *connector_state;
629         struct drm_crtc *crtc;
630         struct drm_crtc_state *crtc_state;
631         struct drm_plane_state *plane_state;
632         struct drm_plane *plane;
633         int ret;
634
635         if (!(crtc = connector->state->crtc))
636                 return 0;
637
638         connector_state = drm_atomic_get_connector_state(state, connector);
639         if (IS_ERR(connector_state))
640                 return PTR_ERR(connector_state);
641
642         ret = drm_atomic_set_crtc_for_connector(connector_state, NULL);
643         if (ret)
644                 return ret;
645
646         crtc_state = drm_atomic_get_crtc_state(state, crtc);
647         if (IS_ERR(crtc_state))
648                 return PTR_ERR(crtc_state);
649
650         ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
651         if (ret)
652                 return ret;
653
654         crtc_state->active = false;
655
656         drm_for_each_plane_mask(plane, connector->dev, crtc_state->plane_mask) {
657                 plane_state = drm_atomic_get_plane_state(state, plane);
658                 if (IS_ERR(plane_state))
659                         return PTR_ERR(plane_state);
660
661                 ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
662                 if (ret)
663                         return ret;
664
665                 drm_atomic_set_fb_for_plane(plane_state, NULL);
666         }
667
668         return 0;
669 }
670
671 static int
672 nouveau_atomic_disable(struct drm_device *dev,
673                        struct drm_modeset_acquire_ctx *ctx)
674 {
675         struct drm_atomic_state *state;
676         struct drm_connector *connector;
677         int ret;
678
679         state = drm_atomic_state_alloc(dev);
680         if (!state)
681                 return -ENOMEM;
682
683         state->acquire_ctx = ctx;
684
685         drm_for_each_connector(connector, dev) {
686                 ret = nouveau_atomic_disable_connector(state, connector);
687                 if (ret)
688                         break;
689         }
690
691         if (ret == 0)
692                 ret = drm_atomic_commit(state);
693         drm_atomic_state_put(state);
694         return ret;
695 }
696
697 static struct drm_atomic_state *
698 nouveau_atomic_suspend(struct drm_device *dev)
699 {
700         struct drm_modeset_acquire_ctx ctx;
701         struct drm_atomic_state *state;
702         int ret;
703
704         drm_modeset_acquire_init(&ctx, 0);
705
706 retry:
707         ret = drm_modeset_lock_all_ctx(dev, &ctx);
708         if (ret < 0) {
709                 state = ERR_PTR(ret);
710                 goto unlock;
711         }
712
713         state = drm_atomic_helper_duplicate_state(dev, &ctx);
714         if (IS_ERR(state))
715                 goto unlock;
716
717         ret = nouveau_atomic_disable(dev, &ctx);
718         if (ret < 0) {
719                 drm_atomic_state_put(state);
720                 state = ERR_PTR(ret);
721                 goto unlock;
722         }
723
724 unlock:
725         if (PTR_ERR(state) == -EDEADLK) {
726                 drm_modeset_backoff(&ctx);
727                 goto retry;
728         }
729
730         drm_modeset_drop_locks(&ctx);
731         drm_modeset_acquire_fini(&ctx);
732         return state;
733 }
734
735 int
736 nouveau_display_suspend(struct drm_device *dev, bool runtime)
737 {
738         struct nouveau_display *disp = nouveau_display(dev);
739         struct drm_crtc *crtc;
740
741         if (dev->mode_config.funcs->atomic_commit) {
742                 if (!runtime) {
743                         disp->suspend = nouveau_atomic_suspend(dev);
744                         if (IS_ERR(disp->suspend)) {
745                                 int ret = PTR_ERR(disp->suspend);
746                                 disp->suspend = NULL;
747                                 return ret;
748                         }
749                 }
750
751                 nouveau_display_fini(dev, true);
752                 return 0;
753         }
754
755         nouveau_display_fini(dev, true);
756
757         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
758                 struct nouveau_framebuffer *nouveau_fb;
759
760                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
761                 if (!nouveau_fb || !nouveau_fb->nvbo)
762                         continue;
763
764                 nouveau_bo_unpin(nouveau_fb->nvbo);
765         }
766
767         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
768                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
769                 if (nv_crtc->cursor.nvbo) {
770                         if (nv_crtc->cursor.set_offset)
771                                 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
772                         nouveau_bo_unpin(nv_crtc->cursor.nvbo);
773                 }
774         }
775
776         return 0;
777 }
778
779 void
780 nouveau_display_resume(struct drm_device *dev, bool runtime)
781 {
782         struct nouveau_display *disp = nouveau_display(dev);
783         struct nouveau_drm *drm = nouveau_drm(dev);
784         struct drm_crtc *crtc;
785         int ret;
786
787         if (dev->mode_config.funcs->atomic_commit) {
788                 nouveau_display_init(dev);
789                 if (disp->suspend) {
790                         drm_atomic_helper_resume(dev, disp->suspend);
791                         disp->suspend = NULL;
792                 }
793                 return;
794         }
795
796         /* re-pin fb/cursors */
797         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
798                 struct nouveau_framebuffer *nouveau_fb;
799
800                 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
801                 if (!nouveau_fb || !nouveau_fb->nvbo)
802                         continue;
803
804                 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
805                 if (ret)
806                         NV_ERROR(drm, "Could not pin framebuffer\n");
807         }
808
809         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
810                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
811                 if (!nv_crtc->cursor.nvbo)
812                         continue;
813
814                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true);
815                 if (!ret && nv_crtc->cursor.set_offset)
816                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
817                 if (ret)
818                         NV_ERROR(drm, "Could not pin/map cursor.\n");
819         }
820
821         nouveau_display_init(dev);
822
823         /* Force CLUT to get re-loaded during modeset */
824         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
825                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
826
827                 nv_crtc->lut.depth = 0;
828         }
829
830         /* This should ensure we don't hit a locking problem when someone
831          * wakes us up via a connector.  We should never go into suspend
832          * while the display is on anyways.
833          */
834         if (runtime)
835                 return;
836
837         drm_helper_resume_force_mode(dev);
838
839         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
840                 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
841
842                 if (!nv_crtc->cursor.nvbo)
843                         continue;
844
845                 if (nv_crtc->cursor.set_offset)
846                         nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
847                 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
848                                                  nv_crtc->cursor_saved_y);
849         }
850 }
851
852 static int
853 nouveau_page_flip_emit(struct nouveau_channel *chan,
854                        struct nouveau_bo *old_bo,
855                        struct nouveau_bo *new_bo,
856                        struct nouveau_page_flip_state *s,
857                        struct nouveau_fence **pfence)
858 {
859         struct nouveau_fence_chan *fctx = chan->fence;
860         struct nouveau_drm *drm = chan->drm;
861         struct drm_device *dev = drm->dev;
862         unsigned long flags;
863         int ret;
864
865         /* Queue it to the pending list */
866         spin_lock_irqsave(&dev->event_lock, flags);
867         list_add_tail(&s->head, &fctx->flip);
868         spin_unlock_irqrestore(&dev->event_lock, flags);
869
870         /* Synchronize with the old framebuffer */
871         ret = nouveau_fence_sync(old_bo, chan, false, false);
872         if (ret)
873                 goto fail;
874
875         /* Emit the pageflip */
876         ret = RING_SPACE(chan, 2);
877         if (ret)
878                 goto fail;
879
880         BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
881         OUT_RING  (chan, 0x00000000);
882         FIRE_RING (chan);
883
884         ret = nouveau_fence_new(chan, false, pfence);
885         if (ret)
886                 goto fail;
887
888         return 0;
889 fail:
890         spin_lock_irqsave(&dev->event_lock, flags);
891         list_del(&s->head);
892         spin_unlock_irqrestore(&dev->event_lock, flags);
893         return ret;
894 }
895
896 int
897 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
898                        struct drm_pending_vblank_event *event, u32 flags)
899 {
900         const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
901         struct drm_device *dev = crtc->dev;
902         struct nouveau_drm *drm = nouveau_drm(dev);
903         struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
904         struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
905         struct nouveau_page_flip_state *s;
906         struct nouveau_channel *chan;
907         struct nouveau_cli *cli;
908         struct nouveau_fence *fence;
909         struct nv04_display *dispnv04 = nv04_display(dev);
910         int head = nouveau_crtc(crtc)->index;
911         int ret;
912
913         chan = drm->channel;
914         if (!chan)
915                 return -ENODEV;
916         cli = (void *)chan->user.client;
917
918         s = kzalloc(sizeof(*s), GFP_KERNEL);
919         if (!s)
920                 return -ENOMEM;
921
922         if (new_bo != old_bo) {
923                 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true);
924                 if (ret)
925                         goto fail_free;
926         }
927
928         mutex_lock(&cli->mutex);
929         ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL);
930         if (ret)
931                 goto fail_unpin;
932
933         /* synchronise rendering channel with the kernel's channel */
934         ret = nouveau_fence_sync(new_bo, chan, false, true);
935         if (ret) {
936                 ttm_bo_unreserve(&new_bo->bo);
937                 goto fail_unpin;
938         }
939
940         if (new_bo != old_bo) {
941                 ttm_bo_unreserve(&new_bo->bo);
942
943                 ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL);
944                 if (ret)
945                         goto fail_unpin;
946         }
947
948         /* Initialize a page flip struct */
949         *s = (struct nouveau_page_flip_state)
950                 { { }, event, crtc, fb->bits_per_pixel, fb->pitches[0],
951                   new_bo->bo.offset };
952
953         /* Keep vblanks on during flip, for the target crtc of this flip */
954         drm_crtc_vblank_get(crtc);
955
956         /* Emit a page flip */
957         if (swap_interval) {
958                 ret = RING_SPACE(chan, 8);
959                 if (ret)
960                         goto fail_unreserve;
961
962                 BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
963                 OUT_RING  (chan, 0);
964                 BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
965                 OUT_RING  (chan, head);
966                 BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
967                 OUT_RING  (chan, 0);
968                 BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
969                 OUT_RING  (chan, 0);
970         }
971
972         nouveau_bo_ref(new_bo, &dispnv04->image[head]);
973
974         ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
975         if (ret)
976                 goto fail_unreserve;
977         mutex_unlock(&cli->mutex);
978
979         /* Update the crtc struct and cleanup */
980         crtc->primary->fb = fb;
981
982         nouveau_bo_fence(old_bo, fence, false);
983         ttm_bo_unreserve(&old_bo->bo);
984         if (old_bo != new_bo)
985                 nouveau_bo_unpin(old_bo);
986         nouveau_fence_unref(&fence);
987         return 0;
988
989 fail_unreserve:
990         drm_crtc_vblank_put(crtc);
991         ttm_bo_unreserve(&old_bo->bo);
992 fail_unpin:
993         mutex_unlock(&cli->mutex);
994         if (old_bo != new_bo)
995                 nouveau_bo_unpin(new_bo);
996 fail_free:
997         kfree(s);
998         return ret;
999 }
1000
1001 int
1002 nouveau_finish_page_flip(struct nouveau_channel *chan,
1003                          struct nouveau_page_flip_state *ps)
1004 {
1005         struct nouveau_fence_chan *fctx = chan->fence;
1006         struct nouveau_drm *drm = chan->drm;
1007         struct drm_device *dev = drm->dev;
1008         struct nouveau_page_flip_state *s;
1009         unsigned long flags;
1010
1011         spin_lock_irqsave(&dev->event_lock, flags);
1012
1013         if (list_empty(&fctx->flip)) {
1014                 NV_ERROR(drm, "unexpected pageflip\n");
1015                 spin_unlock_irqrestore(&dev->event_lock, flags);
1016                 return -EINVAL;
1017         }
1018
1019         s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
1020         if (s->event) {
1021                 drm_crtc_arm_vblank_event(s->crtc, s->event);
1022         } else {
1023                 /* Give up ownership of vblank for page-flipped crtc */
1024                 drm_crtc_vblank_put(s->crtc);
1025         }
1026
1027         list_del(&s->head);
1028         if (ps)
1029                 *ps = *s;
1030         kfree(s);
1031
1032         spin_unlock_irqrestore(&dev->event_lock, flags);
1033         return 0;
1034 }
1035
1036 int
1037 nouveau_flip_complete(struct nvif_notify *notify)
1038 {
1039         struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip);
1040         struct nouveau_channel *chan = drm->channel;
1041         struct nouveau_page_flip_state state;
1042
1043         if (!nouveau_finish_page_flip(chan, &state)) {
1044                 nv_set_crtc_base(drm->dev, drm_crtc_index(state.crtc),
1045                                  state.offset + state.crtc->y *
1046                                  state.pitch + state.crtc->x *
1047                                  state.bpp / 8);
1048         }
1049
1050         return NVIF_NOTIFY_KEEP;
1051 }
1052
1053 int
1054 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
1055                             struct drm_mode_create_dumb *args)
1056 {
1057         struct nouveau_bo *bo;
1058         uint32_t domain;
1059         int ret;
1060
1061         args->pitch = roundup(args->width * (args->bpp / 8), 256);
1062         args->size = args->pitch * args->height;
1063         args->size = roundup(args->size, PAGE_SIZE);
1064
1065         /* Use VRAM if there is any ; otherwise fallback to system memory */
1066         if (nouveau_drm(dev)->device.info.ram_size != 0)
1067                 domain = NOUVEAU_GEM_DOMAIN_VRAM;
1068         else
1069                 domain = NOUVEAU_GEM_DOMAIN_GART;
1070
1071         ret = nouveau_gem_new(dev, args->size, 0, domain, 0, 0, &bo);
1072         if (ret)
1073                 return ret;
1074
1075         ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
1076         drm_gem_object_unreference_unlocked(&bo->gem);
1077         return ret;
1078 }
1079
1080 int
1081 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
1082                                 struct drm_device *dev,
1083                                 uint32_t handle, uint64_t *poffset)
1084 {
1085         struct drm_gem_object *gem;
1086
1087         gem = drm_gem_object_lookup(file_priv, handle);
1088         if (gem) {
1089                 struct nouveau_bo *bo = nouveau_gem_object(gem);
1090                 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
1091                 drm_gem_object_unreference_unlocked(gem);
1092                 return 0;
1093         }
1094
1095         return -ENOENT;
1096 }