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[mirror_ubuntu-artful-kernel.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 struct nouveau_crtc *nv_crtc;
62
63 crtc = drm_crtc_from_index(dev, pipe);
64 if (!crtc)
65 return -EINVAL;
66
67 nv_crtc = nouveau_crtc(crtc);
68 nvif_notify_get(&nv_crtc->vblank);
69
70 return 0;
71 }
72
73 void
74 nouveau_display_vblank_disable(struct drm_device *dev, unsigned int pipe)
75 {
76 struct drm_crtc *crtc;
77 struct nouveau_crtc *nv_crtc;
78
79 crtc = drm_crtc_from_index(dev, pipe);
80 if (!crtc)
81 return;
82
83 nv_crtc = nouveau_crtc(crtc);
84 nvif_notify_put(&nv_crtc->vblank);
85 }
86
87 static inline int
88 calc(int blanks, int blanke, int total, int line)
89 {
90 if (blanke >= blanks) {
91 if (line >= blanks)
92 line -= total;
93 } else {
94 if (line >= blanks)
95 line -= total;
96 line -= blanke + 1;
97 }
98 return line;
99 }
100
101 static bool
102 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
103 ktime_t *stime, ktime_t *etime)
104 {
105 struct {
106 struct nv04_disp_mthd_v0 base;
107 struct nv04_disp_scanoutpos_v0 scan;
108 } args = {
109 .base.method = NV04_DISP_SCANOUTPOS,
110 .base.head = nouveau_crtc(crtc)->index,
111 };
112 struct nouveau_display *disp = nouveau_display(crtc->dev);
113 struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
114 int retry = 20;
115 bool ret = false;
116
117 do {
118 ret = nvif_mthd(&disp->disp, 0, &args, sizeof(args));
119 if (ret != 0)
120 return false;
121
122 if (args.scan.vline) {
123 ret = true;
124 break;
125 }
126
127 if (retry) ndelay(vblank->linedur_ns);
128 } while (retry--);
129
130 *hpos = args.scan.hline;
131 *vpos = calc(args.scan.vblanks, args.scan.vblanke,
132 args.scan.vtotal, args.scan.vline);
133 if (stime) *stime = ns_to_ktime(args.scan.time[0]);
134 if (etime) *etime = ns_to_ktime(args.scan.time[1]);
135
136 return ret;
137 }
138
139 bool
140 nouveau_display_scanoutpos(struct drm_device *dev, unsigned int pipe,
141 bool in_vblank_irq, int *vpos, int *hpos,
142 ktime_t *stime, ktime_t *etime,
143 const struct drm_display_mode *mode)
144 {
145 struct drm_crtc *crtc;
146
147 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
148 if (nouveau_crtc(crtc)->index == pipe) {
149 return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
150 stime, etime);
151 }
152 }
153
154 return false;
155 }
156
157 static void
158 nouveau_display_vblank_fini(struct drm_device *dev)
159 {
160 struct drm_crtc *crtc;
161
162 drm_vblank_cleanup(dev);
163
164 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
165 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
166 nvif_notify_fini(&nv_crtc->vblank);
167 }
168 }
169
170 static int
171 nouveau_display_vblank_init(struct drm_device *dev)
172 {
173 struct nouveau_display *disp = nouveau_display(dev);
174 struct drm_crtc *crtc;
175 int ret;
176
177 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
178 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
179 ret = nvif_notify_init(&disp->disp,
180 nouveau_display_vblank_handler, false,
181 NV04_DISP_NTFY_VBLANK,
182 &(struct nvif_notify_head_req_v0) {
183 .head = nv_crtc->index,
184 },
185 sizeof(struct nvif_notify_head_req_v0),
186 sizeof(struct nvif_notify_head_rep_v0),
187 &nv_crtc->vblank);
188 if (ret) {
189 nouveau_display_vblank_fini(dev);
190 return ret;
191 }
192 }
193
194 ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
195 if (ret) {
196 nouveau_display_vblank_fini(dev);
197 return ret;
198 }
199
200 return 0;
201 }
202
203 static void
204 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
205 {
206 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
207
208 if (fb->nvbo)
209 drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
210
211 drm_framebuffer_cleanup(drm_fb);
212 kfree(fb);
213 }
214
215 static int
216 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
217 struct drm_file *file_priv,
218 unsigned int *handle)
219 {
220 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
221
222 return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
223 }
224
225 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
226 .destroy = nouveau_user_framebuffer_destroy,
227 .create_handle = nouveau_user_framebuffer_create_handle,
228 };
229
230 int
231 nouveau_framebuffer_new(struct drm_device *dev,
232 const struct drm_mode_fb_cmd2 *mode_cmd,
233 struct nouveau_bo *nvbo,
234 struct nouveau_framebuffer **pfb)
235 {
236 struct nouveau_framebuffer *fb;
237 int ret;
238
239 if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
240 return -ENOMEM;
241
242 drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd);
243 fb->nvbo = nvbo;
244
245 ret = drm_framebuffer_init(dev, &fb->base, &nouveau_framebuffer_funcs);
246 if (ret)
247 kfree(fb);
248 return ret;
249 }
250
251 struct drm_framebuffer *
252 nouveau_user_framebuffer_create(struct drm_device *dev,
253 struct drm_file *file_priv,
254 const struct drm_mode_fb_cmd2 *mode_cmd)
255 {
256 struct nouveau_framebuffer *fb;
257 struct nouveau_bo *nvbo;
258 struct drm_gem_object *gem;
259 int ret;
260
261 gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
262 if (!gem)
263 return ERR_PTR(-ENOENT);
264 nvbo = nouveau_gem_object(gem);
265
266 ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb);
267 if (ret == 0)
268 return &fb->base;
269
270 drm_gem_object_unreference_unlocked(gem);
271 return ERR_PTR(ret);
272 }
273
274 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
275 .fb_create = nouveau_user_framebuffer_create,
276 .output_poll_changed = nouveau_fbcon_output_poll_changed,
277 };
278
279
280 struct nouveau_drm_prop_enum_list {
281 u8 gen_mask;
282 int type;
283 char *name;
284 };
285
286 static struct nouveau_drm_prop_enum_list underscan[] = {
287 { 6, UNDERSCAN_AUTO, "auto" },
288 { 6, UNDERSCAN_OFF, "off" },
289 { 6, UNDERSCAN_ON, "on" },
290 {}
291 };
292
293 static struct nouveau_drm_prop_enum_list dither_mode[] = {
294 { 7, DITHERING_MODE_AUTO, "auto" },
295 { 7, DITHERING_MODE_OFF, "off" },
296 { 1, DITHERING_MODE_ON, "on" },
297 { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
298 { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
299 { 4, DITHERING_MODE_TEMPORAL, "temporal" },
300 {}
301 };
302
303 static struct nouveau_drm_prop_enum_list dither_depth[] = {
304 { 6, DITHERING_DEPTH_AUTO, "auto" },
305 { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
306 { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
307 {}
308 };
309
310 #define PROP_ENUM(p,gen,n,list) do { \
311 struct nouveau_drm_prop_enum_list *l = (list); \
312 int c = 0; \
313 while (l->gen_mask) { \
314 if (l->gen_mask & (1 << (gen))) \
315 c++; \
316 l++; \
317 } \
318 if (c) { \
319 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c); \
320 l = (list); \
321 c = 0; \
322 while (p && l->gen_mask) { \
323 if (l->gen_mask & (1 << (gen))) { \
324 drm_property_add_enum(p, c, l->type, l->name); \
325 c++; \
326 } \
327 l++; \
328 } \
329 } \
330 } while(0)
331
332 static void
333 nouveau_display_hpd_work(struct work_struct *work)
334 {
335 struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
336
337 pm_runtime_get_sync(drm->dev->dev);
338
339 drm_helper_hpd_irq_event(drm->dev);
340 /* enable polling for external displays */
341 drm_kms_helper_poll_enable(drm->dev);
342
343 pm_runtime_mark_last_busy(drm->dev->dev);
344 pm_runtime_put_sync(drm->dev->dev);
345 }
346
347 #ifdef CONFIG_ACPI
348
349 /*
350 * Hans de Goede: This define belongs in acpi/video.h, I've submitted a patch
351 * to the acpi subsys to move it there from drivers/acpi/acpi_video.c .
352 * This should be dropped once that is merged.
353 */
354 #ifndef ACPI_VIDEO_NOTIFY_PROBE
355 #define ACPI_VIDEO_NOTIFY_PROBE 0x81
356 #endif
357
358 static int
359 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
360 void *data)
361 {
362 struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
363 struct acpi_bus_event *info = data;
364
365 if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
366 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
367 /*
368 * This may be the only indication we receive of a
369 * connector hotplug on a runtime suspended GPU,
370 * schedule hpd_work to check.
371 */
372 schedule_work(&drm->hpd_work);
373
374 /* acpi-video should not generate keypresses for this */
375 return NOTIFY_BAD;
376 }
377 }
378
379 return NOTIFY_DONE;
380 }
381 #endif
382
383 int
384 nouveau_display_init(struct drm_device *dev)
385 {
386 struct nouveau_display *disp = nouveau_display(dev);
387 struct nouveau_drm *drm = nouveau_drm(dev);
388 struct drm_connector *connector;
389 int ret;
390
391 ret = disp->init(dev);
392 if (ret)
393 return ret;
394
395 /* enable hotplug interrupts */
396 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
397 struct nouveau_connector *conn = nouveau_connector(connector);
398 nvif_notify_get(&conn->hpd);
399 }
400
401 /* enable flip completion events */
402 nvif_notify_get(&drm->flip);
403 return ret;
404 }
405
406 void
407 nouveau_display_fini(struct drm_device *dev, bool suspend)
408 {
409 struct nouveau_display *disp = nouveau_display(dev);
410 struct nouveau_drm *drm = nouveau_drm(dev);
411 struct drm_connector *connector;
412 struct drm_crtc *crtc;
413
414 if (!suspend) {
415 if (drm_drv_uses_atomic_modeset(dev))
416 drm_atomic_helper_shutdown(dev);
417 else
418 drm_crtc_force_disable_all(dev);
419 }
420
421 /* Make sure that drm and hw vblank irqs get properly disabled. */
422 drm_for_each_crtc(crtc, dev)
423 drm_crtc_vblank_off(crtc);
424
425 /* disable flip completion events */
426 nvif_notify_put(&drm->flip);
427
428 /* disable hotplug interrupts */
429 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
430 struct nouveau_connector *conn = nouveau_connector(connector);
431 nvif_notify_put(&conn->hpd);
432 }
433
434 drm_kms_helper_poll_disable(dev);
435 disp->fini(dev);
436 }
437
438 static void
439 nouveau_display_create_properties(struct drm_device *dev)
440 {
441 struct nouveau_display *disp = nouveau_display(dev);
442 int gen;
443
444 if (disp->disp.oclass < NV50_DISP)
445 gen = 0;
446 else
447 if (disp->disp.oclass < GF110_DISP)
448 gen = 1;
449 else
450 gen = 2;
451
452 PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
453 PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
454 PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
455
456 disp->underscan_hborder_property =
457 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
458
459 disp->underscan_vborder_property =
460 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
461
462 if (gen < 1)
463 return;
464
465 /* -90..+90 */
466 disp->vibrant_hue_property =
467 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
468
469 /* -100..+100 */
470 disp->color_vibrance_property =
471 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
472 }
473
474 int
475 nouveau_display_create(struct drm_device *dev)
476 {
477 struct nouveau_drm *drm = nouveau_drm(dev);
478 struct nvkm_device *device = nvxx_device(&drm->client.device);
479 struct nouveau_display *disp;
480 int ret;
481
482 disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
483 if (!disp)
484 return -ENOMEM;
485
486 drm_mode_config_init(dev);
487 drm_mode_create_scaling_mode_property(dev);
488 drm_mode_create_dvi_i_properties(dev);
489
490 dev->mode_config.funcs = &nouveau_mode_config_funcs;
491 dev->mode_config.fb_base = device->func->resource_addr(device, 1);
492
493 dev->mode_config.min_width = 0;
494 dev->mode_config.min_height = 0;
495 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
496 dev->mode_config.max_width = 2048;
497 dev->mode_config.max_height = 2048;
498 } else
499 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
500 dev->mode_config.max_width = 4096;
501 dev->mode_config.max_height = 4096;
502 } else
503 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
504 dev->mode_config.max_width = 8192;
505 dev->mode_config.max_height = 8192;
506 } else {
507 dev->mode_config.max_width = 16384;
508 dev->mode_config.max_height = 16384;
509 }
510
511 dev->mode_config.preferred_depth = 24;
512 dev->mode_config.prefer_shadow = 1;
513
514 if (drm->client.device.info.chipset < 0x11)
515 dev->mode_config.async_page_flip = false;
516 else
517 dev->mode_config.async_page_flip = true;
518
519 drm_kms_helper_poll_init(dev);
520 drm_kms_helper_poll_disable(dev);
521
522 if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
523 static const u16 oclass[] = {
524 GP102_DISP,
525 GP100_DISP,
526 GM200_DISP,
527 GM107_DISP,
528 GK110_DISP,
529 GK104_DISP,
530 GF110_DISP,
531 GT214_DISP,
532 GT206_DISP,
533 GT200_DISP,
534 G82_DISP,
535 NV50_DISP,
536 NV04_DISP,
537 };
538 int i;
539
540 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
541 ret = nvif_object_init(&drm->client.device.object, 0,
542 oclass[i], NULL, 0, &disp->disp);
543 }
544
545 if (ret == 0) {
546 nouveau_display_create_properties(dev);
547 if (disp->disp.oclass < NV50_DISP)
548 ret = nv04_display_create(dev);
549 else
550 ret = nv50_display_create(dev);
551 }
552 } else {
553 ret = 0;
554 }
555
556 if (ret)
557 goto disp_create_err;
558
559 drm_mode_config_reset(dev);
560
561 if (dev->mode_config.num_crtc) {
562 ret = nouveau_display_vblank_init(dev);
563 if (ret)
564 goto vblank_err;
565 }
566
567 nouveau_backlight_init(dev);
568 INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
569 #ifdef CONFIG_ACPI
570 drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
571 register_acpi_notifier(&drm->acpi_nb);
572 #endif
573
574 return 0;
575
576 vblank_err:
577 disp->dtor(dev);
578 disp_create_err:
579 drm_kms_helper_poll_fini(dev);
580 drm_mode_config_cleanup(dev);
581 return ret;
582 }
583
584 void
585 nouveau_display_destroy(struct drm_device *dev)
586 {
587 struct nouveau_display *disp = nouveau_display(dev);
588
589 #ifdef CONFIG_ACPI
590 unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb);
591 #endif
592 nouveau_backlight_exit(dev);
593 nouveau_display_vblank_fini(dev);
594
595 drm_kms_helper_poll_fini(dev);
596 drm_mode_config_cleanup(dev);
597
598 if (disp->dtor)
599 disp->dtor(dev);
600
601 nvif_object_fini(&disp->disp);
602
603 nouveau_drm(dev)->display = NULL;
604 kfree(disp);
605 }
606
607 int
608 nouveau_display_suspend(struct drm_device *dev, bool runtime)
609 {
610 struct nouveau_display *disp = nouveau_display(dev);
611 struct drm_crtc *crtc;
612
613 if (drm_drv_uses_atomic_modeset(dev)) {
614 if (!runtime) {
615 disp->suspend = drm_atomic_helper_suspend(dev);
616 if (IS_ERR(disp->suspend)) {
617 int ret = PTR_ERR(disp->suspend);
618 disp->suspend = NULL;
619 return ret;
620 }
621 }
622
623 nouveau_display_fini(dev, true);
624 return 0;
625 }
626
627 nouveau_display_fini(dev, true);
628
629 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
630 struct nouveau_framebuffer *nouveau_fb;
631
632 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
633 if (!nouveau_fb || !nouveau_fb->nvbo)
634 continue;
635
636 nouveau_bo_unpin(nouveau_fb->nvbo);
637 }
638
639 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
640 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
641 if (nv_crtc->cursor.nvbo) {
642 if (nv_crtc->cursor.set_offset)
643 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
644 nouveau_bo_unpin(nv_crtc->cursor.nvbo);
645 }
646 }
647
648 return 0;
649 }
650
651 void
652 nouveau_display_resume(struct drm_device *dev, bool runtime)
653 {
654 struct nouveau_display *disp = nouveau_display(dev);
655 struct nouveau_drm *drm = nouveau_drm(dev);
656 struct drm_crtc *crtc;
657 int ret;
658
659 if (drm_drv_uses_atomic_modeset(dev)) {
660 nouveau_display_init(dev);
661 if (disp->suspend) {
662 drm_atomic_helper_resume(dev, disp->suspend);
663 disp->suspend = NULL;
664 }
665 return;
666 }
667
668 /* re-pin fb/cursors */
669 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
670 struct nouveau_framebuffer *nouveau_fb;
671
672 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
673 if (!nouveau_fb || !nouveau_fb->nvbo)
674 continue;
675
676 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
677 if (ret)
678 NV_ERROR(drm, "Could not pin framebuffer\n");
679 }
680
681 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
682 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
683 if (!nv_crtc->cursor.nvbo)
684 continue;
685
686 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true);
687 if (!ret && nv_crtc->cursor.set_offset)
688 ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
689 if (ret)
690 NV_ERROR(drm, "Could not pin/map cursor.\n");
691 }
692
693 nouveau_display_init(dev);
694
695 /* Force CLUT to get re-loaded during modeset */
696 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
697 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
698
699 nv_crtc->lut.depth = 0;
700 }
701
702 /* This should ensure we don't hit a locking problem when someone
703 * wakes us up via a connector. We should never go into suspend
704 * while the display is on anyways.
705 */
706 if (runtime)
707 return;
708
709 drm_helper_resume_force_mode(dev);
710
711 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
712 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
713
714 if (!nv_crtc->cursor.nvbo)
715 continue;
716
717 if (nv_crtc->cursor.set_offset)
718 nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
719 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
720 nv_crtc->cursor_saved_y);
721 }
722 }
723
724 static int
725 nouveau_page_flip_emit(struct nouveau_channel *chan,
726 struct nouveau_bo *old_bo,
727 struct nouveau_bo *new_bo,
728 struct nouveau_page_flip_state *s,
729 struct nouveau_fence **pfence)
730 {
731 struct nouveau_fence_chan *fctx = chan->fence;
732 struct nouveau_drm *drm = chan->drm;
733 struct drm_device *dev = drm->dev;
734 unsigned long flags;
735 int ret;
736
737 /* Queue it to the pending list */
738 spin_lock_irqsave(&dev->event_lock, flags);
739 list_add_tail(&s->head, &fctx->flip);
740 spin_unlock_irqrestore(&dev->event_lock, flags);
741
742 /* Synchronize with the old framebuffer */
743 ret = nouveau_fence_sync(old_bo, chan, false, false);
744 if (ret)
745 goto fail;
746
747 /* Emit the pageflip */
748 ret = RING_SPACE(chan, 2);
749 if (ret)
750 goto fail;
751
752 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
753 OUT_RING (chan, 0x00000000);
754 FIRE_RING (chan);
755
756 ret = nouveau_fence_new(chan, false, pfence);
757 if (ret)
758 goto fail;
759
760 return 0;
761 fail:
762 spin_lock_irqsave(&dev->event_lock, flags);
763 list_del(&s->head);
764 spin_unlock_irqrestore(&dev->event_lock, flags);
765 return ret;
766 }
767
768 int
769 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
770 struct drm_pending_vblank_event *event, u32 flags,
771 struct drm_modeset_acquire_ctx *ctx)
772 {
773 const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
774 struct drm_device *dev = crtc->dev;
775 struct nouveau_drm *drm = nouveau_drm(dev);
776 struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
777 struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
778 struct nouveau_page_flip_state *s;
779 struct nouveau_channel *chan;
780 struct nouveau_cli *cli;
781 struct nouveau_fence *fence;
782 struct nv04_display *dispnv04 = nv04_display(dev);
783 int head = nouveau_crtc(crtc)->index;
784 int ret;
785
786 chan = drm->channel;
787 if (!chan)
788 return -ENODEV;
789 cli = (void *)chan->user.client;
790
791 s = kzalloc(sizeof(*s), GFP_KERNEL);
792 if (!s)
793 return -ENOMEM;
794
795 if (new_bo != old_bo) {
796 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true);
797 if (ret)
798 goto fail_free;
799 }
800
801 mutex_lock(&cli->mutex);
802 ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL);
803 if (ret)
804 goto fail_unpin;
805
806 /* synchronise rendering channel with the kernel's channel */
807 ret = nouveau_fence_sync(new_bo, chan, false, true);
808 if (ret) {
809 ttm_bo_unreserve(&new_bo->bo);
810 goto fail_unpin;
811 }
812
813 if (new_bo != old_bo) {
814 ttm_bo_unreserve(&new_bo->bo);
815
816 ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL);
817 if (ret)
818 goto fail_unpin;
819 }
820
821 /* Initialize a page flip struct */
822 *s = (struct nouveau_page_flip_state)
823 { { }, event, crtc, fb->format->cpp[0] * 8, fb->pitches[0],
824 new_bo->bo.offset };
825
826 /* Keep vblanks on during flip, for the target crtc of this flip */
827 drm_crtc_vblank_get(crtc);
828
829 /* Emit a page flip */
830 if (swap_interval) {
831 ret = RING_SPACE(chan, 8);
832 if (ret)
833 goto fail_unreserve;
834
835 BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
836 OUT_RING (chan, 0);
837 BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
838 OUT_RING (chan, head);
839 BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
840 OUT_RING (chan, 0);
841 BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
842 OUT_RING (chan, 0);
843 }
844
845 nouveau_bo_ref(new_bo, &dispnv04->image[head]);
846
847 ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
848 if (ret)
849 goto fail_unreserve;
850 mutex_unlock(&cli->mutex);
851
852 /* Update the crtc struct and cleanup */
853 crtc->primary->fb = fb;
854
855 nouveau_bo_fence(old_bo, fence, false);
856 ttm_bo_unreserve(&old_bo->bo);
857 if (old_bo != new_bo)
858 nouveau_bo_unpin(old_bo);
859 nouveau_fence_unref(&fence);
860 return 0;
861
862 fail_unreserve:
863 drm_crtc_vblank_put(crtc);
864 ttm_bo_unreserve(&old_bo->bo);
865 fail_unpin:
866 mutex_unlock(&cli->mutex);
867 if (old_bo != new_bo)
868 nouveau_bo_unpin(new_bo);
869 fail_free:
870 kfree(s);
871 return ret;
872 }
873
874 int
875 nouveau_finish_page_flip(struct nouveau_channel *chan,
876 struct nouveau_page_flip_state *ps)
877 {
878 struct nouveau_fence_chan *fctx = chan->fence;
879 struct nouveau_drm *drm = chan->drm;
880 struct drm_device *dev = drm->dev;
881 struct nouveau_page_flip_state *s;
882 unsigned long flags;
883
884 spin_lock_irqsave(&dev->event_lock, flags);
885
886 if (list_empty(&fctx->flip)) {
887 NV_ERROR(drm, "unexpected pageflip\n");
888 spin_unlock_irqrestore(&dev->event_lock, flags);
889 return -EINVAL;
890 }
891
892 s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
893 if (s->event) {
894 drm_crtc_arm_vblank_event(s->crtc, s->event);
895 } else {
896 /* Give up ownership of vblank for page-flipped crtc */
897 drm_crtc_vblank_put(s->crtc);
898 }
899
900 list_del(&s->head);
901 if (ps)
902 *ps = *s;
903 kfree(s);
904
905 spin_unlock_irqrestore(&dev->event_lock, flags);
906 return 0;
907 }
908
909 int
910 nouveau_flip_complete(struct nvif_notify *notify)
911 {
912 struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip);
913 struct nouveau_channel *chan = drm->channel;
914 struct nouveau_page_flip_state state;
915
916 if (!nouveau_finish_page_flip(chan, &state)) {
917 nv_set_crtc_base(drm->dev, drm_crtc_index(state.crtc),
918 state.offset + state.crtc->y *
919 state.pitch + state.crtc->x *
920 state.bpp / 8);
921 }
922
923 return NVIF_NOTIFY_KEEP;
924 }
925
926 int
927 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
928 struct drm_mode_create_dumb *args)
929 {
930 struct nouveau_cli *cli = nouveau_cli(file_priv);
931 struct nouveau_bo *bo;
932 uint32_t domain;
933 int ret;
934
935 args->pitch = roundup(args->width * (args->bpp / 8), 256);
936 args->size = args->pitch * args->height;
937 args->size = roundup(args->size, PAGE_SIZE);
938
939 /* Use VRAM if there is any ; otherwise fallback to system memory */
940 if (nouveau_drm(dev)->client.device.info.ram_size != 0)
941 domain = NOUVEAU_GEM_DOMAIN_VRAM;
942 else
943 domain = NOUVEAU_GEM_DOMAIN_GART;
944
945 ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
946 if (ret)
947 return ret;
948
949 ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
950 drm_gem_object_unreference_unlocked(&bo->gem);
951 return ret;
952 }
953
954 int
955 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
956 struct drm_device *dev,
957 uint32_t handle, uint64_t *poffset)
958 {
959 struct drm_gem_object *gem;
960
961 gem = drm_gem_object_lookup(file_priv, handle);
962 if (gem) {
963 struct nouveau_bo *bo = nouveau_gem_object(gem);
964 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
965 drm_gem_object_unreference_unlocked(gem);
966 return 0;
967 }
968
969 return -ENOENT;
970 }
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