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65b4fd53dd4e13186c2d33a072b380e2b8a1fdd1
[deliverable/linux.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 <drm/drmP.h>
28 #include <drm/drm_crtc_helper.h>
29
30 #include <nvif/class.h>
31
32 #include "nouveau_fbcon.h"
33 #include "dispnv04/hw.h"
34 #include "nouveau_crtc.h"
35 #include "nouveau_dma.h"
36 #include "nouveau_gem.h"
37 #include "nouveau_connector.h"
38 #include "nv50_display.h"
39
40 #include "nouveau_fence.h"
41
42 #include <nvif/event.h>
43
44 static int
45 nouveau_display_vblank_handler(struct nvif_notify *notify)
46 {
47 struct nouveau_crtc *nv_crtc =
48 container_of(notify, typeof(*nv_crtc), vblank);
49 drm_handle_vblank(nv_crtc->base.dev, nv_crtc->index);
50 return NVIF_NOTIFY_KEEP;
51 }
52
53 int
54 nouveau_display_vblank_enable(struct drm_device *dev, int head)
55 {
56 struct drm_crtc *crtc;
57 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
58 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
59 if (nv_crtc->index == head) {
60 nvif_notify_get(&nv_crtc->vblank);
61 return 0;
62 }
63 }
64 return -EINVAL;
65 }
66
67 void
68 nouveau_display_vblank_disable(struct drm_device *dev, int head)
69 {
70 struct drm_crtc *crtc;
71 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
72 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
73 if (nv_crtc->index == head) {
74 nvif_notify_put(&nv_crtc->vblank);
75 return;
76 }
77 }
78 }
79
80 static inline int
81 calc(int blanks, int blanke, int total, int line)
82 {
83 if (blanke >= blanks) {
84 if (line >= blanks)
85 line -= total;
86 } else {
87 if (line >= blanks)
88 line -= total;
89 line -= blanke + 1;
90 }
91 return line;
92 }
93
94 int
95 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
96 ktime_t *stime, ktime_t *etime)
97 {
98 struct {
99 struct nv04_disp_mthd_v0 base;
100 struct nv04_disp_scanoutpos_v0 scan;
101 } args = {
102 .base.method = NV04_DISP_SCANOUTPOS,
103 .base.head = nouveau_crtc(crtc)->index,
104 };
105 struct nouveau_display *disp = nouveau_display(crtc->dev);
106 int ret, retry = 1;
107
108 do {
109 ret = nvif_mthd(&disp->disp, 0, &args, sizeof(args));
110 if (ret != 0)
111 return 0;
112
113 if (args.scan.vline) {
114 ret |= DRM_SCANOUTPOS_ACCURATE;
115 ret |= DRM_SCANOUTPOS_VALID;
116 break;
117 }
118
119 if (retry) ndelay(crtc->linedur_ns);
120 } while (retry--);
121
122 *hpos = args.scan.hline;
123 *vpos = calc(args.scan.vblanks, args.scan.vblanke,
124 args.scan.vtotal, args.scan.vline);
125 if (stime) *stime = ns_to_ktime(args.scan.time[0]);
126 if (etime) *etime = ns_to_ktime(args.scan.time[1]);
127
128 if (*vpos < 0)
129 ret |= DRM_SCANOUTPOS_INVBL;
130 return ret;
131 }
132
133 int
134 nouveau_display_scanoutpos(struct drm_device *dev, int head, unsigned int flags,
135 int *vpos, int *hpos, ktime_t *stime, ktime_t *etime)
136 {
137 struct drm_crtc *crtc;
138
139 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
140 if (nouveau_crtc(crtc)->index == head) {
141 return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
142 stime, etime);
143 }
144 }
145
146 return 0;
147 }
148
149 int
150 nouveau_display_vblstamp(struct drm_device *dev, int head, int *max_error,
151 struct timeval *time, unsigned flags)
152 {
153 struct drm_crtc *crtc;
154
155 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
156 if (nouveau_crtc(crtc)->index == head) {
157 return drm_calc_vbltimestamp_from_scanoutpos(dev,
158 head, max_error, time, flags, crtc,
159 &crtc->hwmode);
160 }
161 }
162
163 return -EINVAL;
164 }
165
166 static void
167 nouveau_display_vblank_fini(struct drm_device *dev)
168 {
169 struct drm_crtc *crtc;
170
171 drm_vblank_cleanup(dev);
172
173 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
174 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
175 nvif_notify_fini(&nv_crtc->vblank);
176 }
177 }
178
179 static int
180 nouveau_display_vblank_init(struct drm_device *dev)
181 {
182 struct nouveau_display *disp = nouveau_display(dev);
183 struct drm_crtc *crtc;
184 int ret;
185
186 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
187 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
188 ret = nvif_notify_init(&disp->disp, NULL,
189 nouveau_display_vblank_handler, false,
190 NV04_DISP_NTFY_VBLANK,
191 &(struct nvif_notify_head_req_v0) {
192 .head = nv_crtc->index,
193 },
194 sizeof(struct nvif_notify_head_req_v0),
195 sizeof(struct nvif_notify_head_rep_v0),
196 &nv_crtc->vblank);
197 if (ret) {
198 nouveau_display_vblank_fini(dev);
199 return ret;
200 }
201 }
202
203 ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
204 if (ret) {
205 nouveau_display_vblank_fini(dev);
206 return ret;
207 }
208
209 return 0;
210 }
211
212 static void
213 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
214 {
215 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
216 struct nouveau_display *disp = nouveau_display(drm_fb->dev);
217
218 if (disp->fb_dtor)
219 disp->fb_dtor(drm_fb);
220
221 if (fb->nvbo)
222 drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
223
224 drm_framebuffer_cleanup(drm_fb);
225 kfree(fb);
226 }
227
228 static int
229 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
230 struct drm_file *file_priv,
231 unsigned int *handle)
232 {
233 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
234
235 return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
236 }
237
238 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
239 .destroy = nouveau_user_framebuffer_destroy,
240 .create_handle = nouveau_user_framebuffer_create_handle,
241 };
242
243 int
244 nouveau_framebuffer_init(struct drm_device *dev,
245 struct nouveau_framebuffer *nv_fb,
246 struct drm_mode_fb_cmd2 *mode_cmd,
247 struct nouveau_bo *nvbo)
248 {
249 struct nouveau_display *disp = nouveau_display(dev);
250 struct drm_framebuffer *fb = &nv_fb->base;
251 int ret;
252
253 drm_helper_mode_fill_fb_struct(fb, mode_cmd);
254 nv_fb->nvbo = nvbo;
255
256 ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
257 if (ret)
258 return ret;
259
260 if (disp->fb_ctor) {
261 ret = disp->fb_ctor(fb);
262 if (ret)
263 disp->fb_dtor(fb);
264 }
265
266 return ret;
267 }
268
269 static struct drm_framebuffer *
270 nouveau_user_framebuffer_create(struct drm_device *dev,
271 struct drm_file *file_priv,
272 struct drm_mode_fb_cmd2 *mode_cmd)
273 {
274 struct nouveau_framebuffer *nouveau_fb;
275 struct drm_gem_object *gem;
276 int ret = -ENOMEM;
277
278 gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
279 if (!gem)
280 return ERR_PTR(-ENOENT);
281
282 nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL);
283 if (!nouveau_fb)
284 goto err_unref;
285
286 ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem));
287 if (ret)
288 goto err;
289
290 return &nouveau_fb->base;
291
292 err:
293 kfree(nouveau_fb);
294 err_unref:
295 drm_gem_object_unreference(gem);
296 return ERR_PTR(ret);
297 }
298
299 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
300 .fb_create = nouveau_user_framebuffer_create,
301 .output_poll_changed = nouveau_fbcon_output_poll_changed,
302 };
303
304
305 struct nouveau_drm_prop_enum_list {
306 u8 gen_mask;
307 int type;
308 char *name;
309 };
310
311 static struct nouveau_drm_prop_enum_list underscan[] = {
312 { 6, UNDERSCAN_AUTO, "auto" },
313 { 6, UNDERSCAN_OFF, "off" },
314 { 6, UNDERSCAN_ON, "on" },
315 {}
316 };
317
318 static struct nouveau_drm_prop_enum_list dither_mode[] = {
319 { 7, DITHERING_MODE_AUTO, "auto" },
320 { 7, DITHERING_MODE_OFF, "off" },
321 { 1, DITHERING_MODE_ON, "on" },
322 { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
323 { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
324 { 4, DITHERING_MODE_TEMPORAL, "temporal" },
325 {}
326 };
327
328 static struct nouveau_drm_prop_enum_list dither_depth[] = {
329 { 6, DITHERING_DEPTH_AUTO, "auto" },
330 { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
331 { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
332 {}
333 };
334
335 #define PROP_ENUM(p,gen,n,list) do { \
336 struct nouveau_drm_prop_enum_list *l = (list); \
337 int c = 0; \
338 while (l->gen_mask) { \
339 if (l->gen_mask & (1 << (gen))) \
340 c++; \
341 l++; \
342 } \
343 if (c) { \
344 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c); \
345 l = (list); \
346 c = 0; \
347 while (p && l->gen_mask) { \
348 if (l->gen_mask & (1 << (gen))) { \
349 drm_property_add_enum(p, c, l->type, l->name); \
350 c++; \
351 } \
352 l++; \
353 } \
354 } \
355 } while(0)
356
357 int
358 nouveau_display_init(struct drm_device *dev)
359 {
360 struct nouveau_display *disp = nouveau_display(dev);
361 struct drm_connector *connector;
362 int ret;
363
364 ret = disp->init(dev);
365 if (ret)
366 return ret;
367
368 /* enable polling for external displays */
369 drm_kms_helper_poll_enable(dev);
370
371 /* enable hotplug interrupts */
372 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
373 struct nouveau_connector *conn = nouveau_connector(connector);
374 nvif_notify_get(&conn->hpd);
375 }
376
377 return ret;
378 }
379
380 void
381 nouveau_display_fini(struct drm_device *dev)
382 {
383 struct nouveau_display *disp = nouveau_display(dev);
384 struct drm_connector *connector;
385 int head;
386
387 /* Make sure that drm and hw vblank irqs get properly disabled. */
388 for (head = 0; head < dev->mode_config.num_crtc; head++)
389 drm_vblank_off(dev, head);
390
391 /* disable hotplug interrupts */
392 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
393 struct nouveau_connector *conn = nouveau_connector(connector);
394 nvif_notify_put(&conn->hpd);
395 }
396
397 drm_kms_helper_poll_disable(dev);
398 disp->fini(dev);
399 }
400
401 static void
402 nouveau_display_create_properties(struct drm_device *dev)
403 {
404 struct nouveau_display *disp = nouveau_display(dev);
405 int gen;
406
407 if (disp->disp.oclass < NV50_DISP)
408 gen = 0;
409 else
410 if (disp->disp.oclass < GF110_DISP)
411 gen = 1;
412 else
413 gen = 2;
414
415 PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
416 PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
417 PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
418
419 disp->underscan_hborder_property =
420 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
421
422 disp->underscan_vborder_property =
423 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
424
425 if (gen < 1)
426 return;
427
428 /* -90..+90 */
429 disp->vibrant_hue_property =
430 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
431
432 /* -100..+100 */
433 disp->color_vibrance_property =
434 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
435 }
436
437 int
438 nouveau_display_create(struct drm_device *dev)
439 {
440 struct nouveau_drm *drm = nouveau_drm(dev);
441 struct nouveau_display *disp;
442 int ret;
443
444 disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
445 if (!disp)
446 return -ENOMEM;
447
448 drm_mode_config_init(dev);
449 drm_mode_create_scaling_mode_property(dev);
450 drm_mode_create_dvi_i_properties(dev);
451
452 dev->mode_config.funcs = &nouveau_mode_config_funcs;
453 dev->mode_config.fb_base = nv_device_resource_start(nvkm_device(&drm->device), 1);
454
455 dev->mode_config.min_width = 0;
456 dev->mode_config.min_height = 0;
457 if (drm->device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
458 dev->mode_config.max_width = 2048;
459 dev->mode_config.max_height = 2048;
460 } else
461 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
462 dev->mode_config.max_width = 4096;
463 dev->mode_config.max_height = 4096;
464 } else {
465 dev->mode_config.max_width = 8192;
466 dev->mode_config.max_height = 8192;
467 }
468
469 dev->mode_config.preferred_depth = 24;
470 dev->mode_config.prefer_shadow = 1;
471
472 if (drm->device.info.chipset < 0x11)
473 dev->mode_config.async_page_flip = false;
474 else
475 dev->mode_config.async_page_flip = true;
476
477 drm_kms_helper_poll_init(dev);
478 drm_kms_helper_poll_disable(dev);
479
480 if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
481 static const u16 oclass[] = {
482 GM107_DISP,
483 GK110_DISP,
484 GK104_DISP,
485 GF110_DISP,
486 GT214_DISP,
487 GT206_DISP,
488 GT200_DISP,
489 G82_DISP,
490 NV50_DISP,
491 NV04_DISP,
492 };
493 int i;
494
495 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
496 ret = nvif_object_init(nvif_object(&drm->device), NULL,
497 NVDRM_DISPLAY, oclass[i],
498 NULL, 0, &disp->disp);
499 }
500
501 if (ret == 0) {
502 nouveau_display_create_properties(dev);
503 if (disp->disp.oclass < NV50_DISP)
504 ret = nv04_display_create(dev);
505 else
506 ret = nv50_display_create(dev);
507 }
508 } else {
509 ret = 0;
510 }
511
512 if (ret)
513 goto disp_create_err;
514
515 if (dev->mode_config.num_crtc) {
516 ret = nouveau_display_vblank_init(dev);
517 if (ret)
518 goto vblank_err;
519 }
520
521 nouveau_backlight_init(dev);
522 return 0;
523
524 vblank_err:
525 disp->dtor(dev);
526 disp_create_err:
527 drm_kms_helper_poll_fini(dev);
528 drm_mode_config_cleanup(dev);
529 return ret;
530 }
531
532 void
533 nouveau_display_destroy(struct drm_device *dev)
534 {
535 struct nouveau_display *disp = nouveau_display(dev);
536
537 nouveau_backlight_exit(dev);
538 nouveau_display_vblank_fini(dev);
539
540 drm_kms_helper_poll_fini(dev);
541 drm_mode_config_cleanup(dev);
542
543 if (disp->dtor)
544 disp->dtor(dev);
545
546 nvif_object_fini(&disp->disp);
547
548 nouveau_drm(dev)->display = NULL;
549 kfree(disp);
550 }
551
552 int
553 nouveau_display_suspend(struct drm_device *dev)
554 {
555 struct nouveau_drm *drm = nouveau_drm(dev);
556 struct drm_crtc *crtc;
557
558 nouveau_display_fini(dev);
559
560 NV_INFO(drm, "unpinning framebuffer(s)...\n");
561 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
562 struct nouveau_framebuffer *nouveau_fb;
563
564 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
565 if (!nouveau_fb || !nouveau_fb->nvbo)
566 continue;
567
568 nouveau_bo_unpin(nouveau_fb->nvbo);
569 }
570
571 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
572 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
573
574 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
575 nouveau_bo_unpin(nv_crtc->cursor.nvbo);
576 }
577
578 return 0;
579 }
580
581 void
582 nouveau_display_repin(struct drm_device *dev)
583 {
584 struct nouveau_drm *drm = nouveau_drm(dev);
585 struct drm_crtc *crtc;
586 int ret;
587
588 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
589 struct nouveau_framebuffer *nouveau_fb;
590
591 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
592 if (!nouveau_fb || !nouveau_fb->nvbo)
593 continue;
594
595 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM);
596 if (ret)
597 NV_ERROR(drm, "Could not pin framebuffer\n");
598 }
599
600 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
601 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
602
603 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM);
604 if (!ret)
605 ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
606 if (ret)
607 NV_ERROR(drm, "Could not pin/map cursor.\n");
608 }
609 }
610
611 void
612 nouveau_display_resume(struct drm_device *dev)
613 {
614 struct drm_crtc *crtc;
615 int head;
616
617 nouveau_display_init(dev);
618
619 /* Force CLUT to get re-loaded during modeset */
620 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
621 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
622
623 nv_crtc->lut.depth = 0;
624 }
625
626 /* Make sure that drm and hw vblank irqs get resumed if needed. */
627 for (head = 0; head < dev->mode_config.num_crtc; head++)
628 drm_vblank_on(dev, head);
629
630 drm_helper_resume_force_mode(dev);
631
632 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
633 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
634 u32 offset = nv_crtc->cursor.nvbo->bo.offset;
635
636 nv_crtc->cursor.set_offset(nv_crtc, offset);
637 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
638 nv_crtc->cursor_saved_y);
639 }
640 }
641
642 static int
643 nouveau_page_flip_emit(struct nouveau_channel *chan,
644 struct nouveau_bo *old_bo,
645 struct nouveau_bo *new_bo,
646 struct nouveau_page_flip_state *s,
647 struct nouveau_fence **pfence)
648 {
649 struct nouveau_fence_chan *fctx = chan->fence;
650 struct nouveau_drm *drm = chan->drm;
651 struct drm_device *dev = drm->dev;
652 unsigned long flags;
653 int ret;
654
655 /* Queue it to the pending list */
656 spin_lock_irqsave(&dev->event_lock, flags);
657 list_add_tail(&s->head, &fctx->flip);
658 spin_unlock_irqrestore(&dev->event_lock, flags);
659
660 /* Synchronize with the old framebuffer */
661 ret = nouveau_fence_sync(old_bo->bo.sync_obj, chan);
662 if (ret)
663 goto fail;
664
665 /* Emit the pageflip */
666 ret = RING_SPACE(chan, 2);
667 if (ret)
668 goto fail;
669
670 if (drm->device.info.family < NV_DEVICE_INFO_V0_FERMI)
671 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
672 else
673 BEGIN_NVC0(chan, FermiSw, NV_SW_PAGE_FLIP, 1);
674 OUT_RING (chan, 0x00000000);
675 FIRE_RING (chan);
676
677 ret = nouveau_fence_new(chan, false, pfence);
678 if (ret)
679 goto fail;
680
681 return 0;
682 fail:
683 spin_lock_irqsave(&dev->event_lock, flags);
684 list_del(&s->head);
685 spin_unlock_irqrestore(&dev->event_lock, flags);
686 return ret;
687 }
688
689 int
690 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
691 struct drm_pending_vblank_event *event, u32 flags)
692 {
693 const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
694 struct drm_device *dev = crtc->dev;
695 struct nouveau_drm *drm = nouveau_drm(dev);
696 struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
697 struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
698 struct nouveau_page_flip_state *s;
699 struct nouveau_channel *chan;
700 struct nouveau_cli *cli;
701 struct nouveau_fence *fence;
702 int ret;
703
704 chan = drm->channel;
705 if (!chan)
706 return -ENODEV;
707 cli = (void *)nvif_client(&chan->device->base);
708
709 s = kzalloc(sizeof(*s), GFP_KERNEL);
710 if (!s)
711 return -ENOMEM;
712
713 if (new_bo != old_bo) {
714 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM);
715 if (ret)
716 goto fail_free;
717 }
718
719 mutex_lock(&cli->mutex);
720
721 /* synchronise rendering channel with the kernel's channel */
722 spin_lock(&new_bo->bo.bdev->fence_lock);
723 fence = nouveau_fence_ref(new_bo->bo.sync_obj);
724 spin_unlock(&new_bo->bo.bdev->fence_lock);
725 ret = nouveau_fence_sync(fence, chan);
726 nouveau_fence_unref(&fence);
727 if (ret)
728 goto fail_unpin;
729
730 ret = ttm_bo_reserve(&old_bo->bo, true, false, false, NULL);
731 if (ret)
732 goto fail_unpin;
733
734 /* Initialize a page flip struct */
735 *s = (struct nouveau_page_flip_state)
736 { { }, event, nouveau_crtc(crtc)->index,
737 fb->bits_per_pixel, fb->pitches[0], crtc->x, crtc->y,
738 new_bo->bo.offset };
739
740 /* Keep vblanks on during flip, for the target crtc of this flip */
741 drm_vblank_get(dev, nouveau_crtc(crtc)->index);
742
743 /* Emit a page flip */
744 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
745 ret = nv50_display_flip_next(crtc, fb, chan, swap_interval);
746 if (ret)
747 goto fail_unreserve;
748 } else {
749 struct nv04_display *dispnv04 = nv04_display(dev);
750 int head = nouveau_crtc(crtc)->index;
751
752 if (swap_interval) {
753 ret = RING_SPACE(chan, 8);
754 if (ret)
755 goto fail_unreserve;
756
757 BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
758 OUT_RING (chan, 0);
759 BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
760 OUT_RING (chan, head);
761 BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
762 OUT_RING (chan, 0);
763 BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
764 OUT_RING (chan, 0);
765 }
766
767 nouveau_bo_ref(new_bo, &dispnv04->image[head]);
768 }
769
770 ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
771 if (ret)
772 goto fail_unreserve;
773 mutex_unlock(&cli->mutex);
774
775 /* Update the crtc struct and cleanup */
776 crtc->primary->fb = fb;
777
778 nouveau_bo_fence(old_bo, fence);
779 ttm_bo_unreserve(&old_bo->bo);
780 if (old_bo != new_bo)
781 nouveau_bo_unpin(old_bo);
782 nouveau_fence_unref(&fence);
783 return 0;
784
785 fail_unreserve:
786 drm_vblank_put(dev, nouveau_crtc(crtc)->index);
787 ttm_bo_unreserve(&old_bo->bo);
788 fail_unpin:
789 mutex_unlock(&cli->mutex);
790 if (old_bo != new_bo)
791 nouveau_bo_unpin(new_bo);
792 fail_free:
793 kfree(s);
794 return ret;
795 }
796
797 int
798 nouveau_finish_page_flip(struct nouveau_channel *chan,
799 struct nouveau_page_flip_state *ps)
800 {
801 struct nouveau_fence_chan *fctx = chan->fence;
802 struct nouveau_drm *drm = chan->drm;
803 struct drm_device *dev = drm->dev;
804 struct nouveau_page_flip_state *s;
805 unsigned long flags;
806 int crtcid = -1;
807
808 spin_lock_irqsave(&dev->event_lock, flags);
809
810 if (list_empty(&fctx->flip)) {
811 NV_ERROR(drm, "unexpected pageflip\n");
812 spin_unlock_irqrestore(&dev->event_lock, flags);
813 return -EINVAL;
814 }
815
816 s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
817 if (s->event) {
818 /* Vblank timestamps/counts are only correct on >= NV-50 */
819 if (drm->device.info.family >= NV_DEVICE_INFO_V0_TESLA)
820 crtcid = s->crtc;
821
822 drm_send_vblank_event(dev, crtcid, s->event);
823 }
824
825 /* Give up ownership of vblank for page-flipped crtc */
826 drm_vblank_put(dev, s->crtc);
827
828 list_del(&s->head);
829 if (ps)
830 *ps = *s;
831 kfree(s);
832
833 spin_unlock_irqrestore(&dev->event_lock, flags);
834 return 0;
835 }
836
837 int
838 nouveau_flip_complete(void *data)
839 {
840 struct nouveau_channel *chan = data;
841 struct nouveau_drm *drm = chan->drm;
842 struct nouveau_page_flip_state state;
843
844 if (!nouveau_finish_page_flip(chan, &state)) {
845 if (drm->device.info.family < NV_DEVICE_INFO_V0_TESLA) {
846 nv_set_crtc_base(drm->dev, state.crtc, state.offset +
847 state.y * state.pitch +
848 state.x * state.bpp / 8);
849 }
850 }
851
852 return 0;
853 }
854
855 int
856 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
857 struct drm_mode_create_dumb *args)
858 {
859 struct nouveau_bo *bo;
860 int ret;
861
862 args->pitch = roundup(args->width * (args->bpp / 8), 256);
863 args->size = args->pitch * args->height;
864 args->size = roundup(args->size, PAGE_SIZE);
865
866 ret = nouveau_gem_new(dev, args->size, 0, NOUVEAU_GEM_DOMAIN_VRAM, 0, 0, &bo);
867 if (ret)
868 return ret;
869
870 ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
871 drm_gem_object_unreference_unlocked(&bo->gem);
872 return ret;
873 }
874
875 int
876 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
877 struct drm_device *dev,
878 uint32_t handle, uint64_t *poffset)
879 {
880 struct drm_gem_object *gem;
881
882 gem = drm_gem_object_lookup(dev, file_priv, handle);
883 if (gem) {
884 struct nouveau_bo *bo = nouveau_gem_object(gem);
885 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
886 drm_gem_object_unreference_unlocked(gem);
887 return 0;
888 }
889
890 return -ENOENT;
891 }
Linux kernel - Deliverables
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