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sched: Remove double_rq_lock() from __migrate_task()
[linux/fpc-iii.git] / drivers / gpu / drm / nouveau / nouveau_display.c
blob47ad74255bf1e6501bc9f7a266d91d329033921e
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 "nouveau_fbcon.h"
31 #include "dispnv04/hw.h"
32 #include "nouveau_crtc.h"
33 #include "nouveau_dma.h"
34 #include "nouveau_gem.h"
35 #include "nouveau_connector.h"
36 #include "nv50_display.h"
37
38 #include "nouveau_fence.h"
39
40 #include <engine/disp.h>
41
42 #include <core/class.h>
43
44 static int
45 nouveau_display_vblank_handler(void *data, u32 type, int head)
46 {
47 struct nouveau_drm *drm = data;
48 drm_handle_vblank(drm->dev, head);
49 return NVKM_EVENT_KEEP;
50 }
51
52 int
53 nouveau_display_vblank_enable(struct drm_device *dev, int head)
54 {
55 struct nouveau_display *disp = nouveau_display(dev);
56 if (disp) {
57 nouveau_event_get(disp->vblank[head]);
58 return 0;
59 }
60 return -EIO;
61 }
62
63 void
64 nouveau_display_vblank_disable(struct drm_device *dev, int head)
65 {
66 struct nouveau_display *disp = nouveau_display(dev);
67 if (disp)
68 nouveau_event_put(disp->vblank[head]);
69 }
70
71 static inline int
72 calc(int blanks, int blanke, int total, int line)
73 {
74 if (blanke >= blanks) {
75 if (line >= blanks)
76 line -= total;
77 } else {
78 if (line >= blanks)
79 line -= total;
80 line -= blanke + 1;
81 }
82 return line;
83 }
84
85 int
86 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
87 ktime_t *stime, ktime_t *etime)
88 {
89 const u32 mthd = NV04_DISP_SCANOUTPOS + nouveau_crtc(crtc)->index;
90 struct nouveau_display *disp = nouveau_display(crtc->dev);
91 struct nv04_display_scanoutpos args;
92 int ret, retry = 1;
93
94 do {
95 ret = nv_exec(disp->core, mthd, &args, sizeof(args));
96 if (ret != 0)
97 return 0;
98
99 if (args.vline) {
100 ret |= DRM_SCANOUTPOS_ACCURATE;
101 ret |= DRM_SCANOUTPOS_VALID;
102 break;
103 }
104
105 if (retry) ndelay(crtc->linedur_ns);
106 } while (retry--);
107
108 *hpos = args.hline;
109 *vpos = calc(args.vblanks, args.vblanke, args.vtotal, args.vline);
110 if (stime) *stime = ns_to_ktime(args.time[0]);
111 if (etime) *etime = ns_to_ktime(args.time[1]);
112
113 if (*vpos < 0)
114 ret |= DRM_SCANOUTPOS_INVBL;
115 return ret;
116 }
117
118 int
119 nouveau_display_scanoutpos(struct drm_device *dev, int head, unsigned int flags,
120 int *vpos, int *hpos, ktime_t *stime, ktime_t *etime)
121 {
122 struct drm_crtc *crtc;
123
124 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
125 if (nouveau_crtc(crtc)->index == head) {
126 return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
127 stime, etime);
128 }
129 }
130
131 return 0;
132 }
133
134 int
135 nouveau_display_vblstamp(struct drm_device *dev, int head, int *max_error,
136 struct timeval *time, unsigned flags)
137 {
138 struct drm_crtc *crtc;
139
140 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
141 if (nouveau_crtc(crtc)->index == head) {
142 return drm_calc_vbltimestamp_from_scanoutpos(dev,
143 head, max_error, time, flags, crtc,
144 &crtc->hwmode);
145 }
146 }
147
148 return -EINVAL;
149 }
150
151 static void
152 nouveau_display_vblank_fini(struct drm_device *dev)
153 {
154 struct nouveau_display *disp = nouveau_display(dev);
155 int i;
156
157 drm_vblank_cleanup(dev);
158
159 if (disp->vblank) {
160 for (i = 0; i < dev->mode_config.num_crtc; i++)
161 nouveau_event_ref(NULL, &disp->vblank[i]);
162 kfree(disp->vblank);
163 disp->vblank = NULL;
164 }
165 }
166
167 static int
168 nouveau_display_vblank_init(struct drm_device *dev)
169 {
170 struct nouveau_display *disp = nouveau_display(dev);
171 struct nouveau_drm *drm = nouveau_drm(dev);
172 struct nouveau_disp *pdisp = nouveau_disp(drm->device);
173 int ret, i;
174
175 disp->vblank = kzalloc(dev->mode_config.num_crtc *
176 sizeof(*disp->vblank), GFP_KERNEL);
177 if (!disp->vblank)
178 return -ENOMEM;
179
180 for (i = 0; i < dev->mode_config.num_crtc; i++) {
181 ret = nouveau_event_new(pdisp->vblank, 1, i,
182 nouveau_display_vblank_handler,
183 drm, &disp->vblank[i]);
184 if (ret) {
185 nouveau_display_vblank_fini(dev);
186 return ret;
187 }
188 }
189
190 ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
191 if (ret) {
192 nouveau_display_vblank_fini(dev);
193 return ret;
194 }
195
196 return 0;
197 }
198
199 static void
200 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
201 {
202 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
203
204 if (fb->nvbo)
205 drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
206
207 drm_framebuffer_cleanup(drm_fb);
208 kfree(fb);
209 }
210
211 static int
212 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
213 struct drm_file *file_priv,
214 unsigned int *handle)
215 {
216 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
217
218 return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
219 }
220
221 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
222 .destroy = nouveau_user_framebuffer_destroy,
223 .create_handle = nouveau_user_framebuffer_create_handle,
224 };
225
226 int
227 nouveau_framebuffer_init(struct drm_device *dev,
228 struct nouveau_framebuffer *nv_fb,
229 struct drm_mode_fb_cmd2 *mode_cmd,
230 struct nouveau_bo *nvbo)
231 {
232 struct nouveau_drm *drm = nouveau_drm(dev);
233 struct drm_framebuffer *fb = &nv_fb->base;
234 int ret;
235
236 drm_helper_mode_fill_fb_struct(fb, mode_cmd);
237 nv_fb->nvbo = nvbo;
238
239 if (nv_device(drm->device)->card_type >= NV_50) {
240 u32 tile_flags = nouveau_bo_tile_layout(nvbo);
241 if (tile_flags == 0x7a00 ||
242 tile_flags == 0xfe00)
243 nv_fb->r_dma = NvEvoFB32;
244 else
245 if (tile_flags == 0x7000)
246 nv_fb->r_dma = NvEvoFB16;
247 else
248 nv_fb->r_dma = NvEvoVRAM_LP;
249
250 switch (fb->depth) {
251 case 8: nv_fb->r_format = 0x1e00; break;
252 case 15: nv_fb->r_format = 0xe900; break;
253 case 16: nv_fb->r_format = 0xe800; break;
254 case 24:
255 case 32: nv_fb->r_format = 0xcf00; break;
256 case 30: nv_fb->r_format = 0xd100; break;
257 default:
258 NV_ERROR(drm, "unknown depth %d\n", fb->depth);
259 return -EINVAL;
260 }
261
262 if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG) {
263 NV_ERROR(drm, "framebuffer requires contiguous bo\n");
264 return -EINVAL;
265 }
266
267 if (nv_device(drm->device)->chipset == 0x50)
268 nv_fb->r_format |= (tile_flags << 8);
269
270 if (!tile_flags) {
271 if (nv_device(drm->device)->card_type < NV_D0)
272 nv_fb->r_pitch = 0x00100000 | fb->pitches[0];
273 else
274 nv_fb->r_pitch = 0x01000000 | fb->pitches[0];
275 } else {
276 u32 mode = nvbo->tile_mode;
277 if (nv_device(drm->device)->card_type >= NV_C0)
278 mode >>= 4;
279 nv_fb->r_pitch = ((fb->pitches[0] / 4) << 4) | mode;
280 }
281 }
282
283 ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
284 if (ret) {
285 return ret;
286 }
287
288 return 0;
289 }
290
291 static struct drm_framebuffer *
292 nouveau_user_framebuffer_create(struct drm_device *dev,
293 struct drm_file *file_priv,
294 struct drm_mode_fb_cmd2 *mode_cmd)
295 {
296 struct nouveau_framebuffer *nouveau_fb;
297 struct drm_gem_object *gem;
298 int ret = -ENOMEM;
299
300 gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
301 if (!gem)
302 return ERR_PTR(-ENOENT);
303
304 nouveau_fb = kzalloc(sizeof(struct nouveau_framebuffer), GFP_KERNEL);
305 if (!nouveau_fb)
306 goto err_unref;
307
308 ret = nouveau_framebuffer_init(dev, nouveau_fb, mode_cmd, nouveau_gem_object(gem));
309 if (ret)
310 goto err;
311
312 return &nouveau_fb->base;
313
314 err:
315 kfree(nouveau_fb);
316 err_unref:
317 drm_gem_object_unreference(gem);
318 return ERR_PTR(ret);
319 }
320
321 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
322 .fb_create = nouveau_user_framebuffer_create,
323 .output_poll_changed = nouveau_fbcon_output_poll_changed,
324 };
325
326
327 struct nouveau_drm_prop_enum_list {
328 u8 gen_mask;
329 int type;
330 char *name;
331 };
332
333 static struct nouveau_drm_prop_enum_list underscan[] = {
334 { 6, UNDERSCAN_AUTO, "auto" },
335 { 6, UNDERSCAN_OFF, "off" },
336 { 6, UNDERSCAN_ON, "on" },
337 {}
338 };
339
340 static struct nouveau_drm_prop_enum_list dither_mode[] = {
341 { 7, DITHERING_MODE_AUTO, "auto" },
342 { 7, DITHERING_MODE_OFF, "off" },
343 { 1, DITHERING_MODE_ON, "on" },
344 { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
345 { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
346 { 4, DITHERING_MODE_TEMPORAL, "temporal" },
347 {}
348 };
349
350 static struct nouveau_drm_prop_enum_list dither_depth[] = {
351 { 6, DITHERING_DEPTH_AUTO, "auto" },
352 { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
353 { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
354 {}
355 };
356
357 #define PROP_ENUM(p,gen,n,list) do { \
358 struct nouveau_drm_prop_enum_list *l = (list); \
359 int c = 0; \
360 while (l->gen_mask) { \
361 if (l->gen_mask & (1 << (gen))) \
362 c++; \
363 l++; \
364 } \
365 if (c) { \
366 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c); \
367 l = (list); \
368 c = 0; \
369 while (p && l->gen_mask) { \
370 if (l->gen_mask & (1 << (gen))) { \
371 drm_property_add_enum(p, c, l->type, l->name); \
372 c++; \
373 } \
374 l++; \
375 } \
376 } \
377 } while(0)
378
379 int
380 nouveau_display_init(struct drm_device *dev)
381 {
382 struct nouveau_display *disp = nouveau_display(dev);
383 struct drm_connector *connector;
384 int ret;
385
386 ret = disp->init(dev);
387 if (ret)
388 return ret;
389
390 /* enable polling for external displays */
391 drm_kms_helper_poll_enable(dev);
392
393 /* enable hotplug interrupts */
394 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
395 struct nouveau_connector *conn = nouveau_connector(connector);
396 if (conn->hpd) nouveau_event_get(conn->hpd);
397 }
398
399 return ret;
400 }
401
402 void
403 nouveau_display_fini(struct drm_device *dev)
404 {
405 struct nouveau_display *disp = nouveau_display(dev);
406 struct drm_connector *connector;
407
408 /* disable hotplug interrupts */
409 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
410 struct nouveau_connector *conn = nouveau_connector(connector);
411 if (conn->hpd) nouveau_event_put(conn->hpd);
412 }
413
414 drm_kms_helper_poll_disable(dev);
415 disp->fini(dev);
416 }
417
418 int
419 nouveau_display_create(struct drm_device *dev)
420 {
421 struct nouveau_drm *drm = nouveau_drm(dev);
422 struct nouveau_device *device = nouveau_dev(dev);
423 struct nouveau_display *disp;
424 int ret, gen;
425
426 disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
427 if (!disp)
428 return -ENOMEM;
429
430 drm_mode_config_init(dev);
431 drm_mode_create_scaling_mode_property(dev);
432 drm_mode_create_dvi_i_properties(dev);
433
434 if (nv_device(drm->device)->card_type < NV_50)
435 gen = 0;
436 else
437 if (nv_device(drm->device)->card_type < NV_D0)
438 gen = 1;
439 else
440 gen = 2;
441
442 PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
443 PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
444 PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
445
446 disp->underscan_hborder_property =
447 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
448
449 disp->underscan_vborder_property =
450 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
451
452 if (gen >= 1) {
453 /* -90..+90 */
454 disp->vibrant_hue_property =
455 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
456
457 /* -100..+100 */
458 disp->color_vibrance_property =
459 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
460 }
461
462 dev->mode_config.funcs = &nouveau_mode_config_funcs;
463 dev->mode_config.fb_base = nv_device_resource_start(device, 1);
464
465 dev->mode_config.min_width = 0;
466 dev->mode_config.min_height = 0;
467 if (nv_device(drm->device)->card_type < NV_10) {
468 dev->mode_config.max_width = 2048;
469 dev->mode_config.max_height = 2048;
470 } else
471 if (nv_device(drm->device)->card_type < NV_50) {
472 dev->mode_config.max_width = 4096;
473 dev->mode_config.max_height = 4096;
474 } else {
475 dev->mode_config.max_width = 8192;
476 dev->mode_config.max_height = 8192;
477 }
478
479 dev->mode_config.preferred_depth = 24;
480 dev->mode_config.prefer_shadow = 1;
481
482 if (nv_device(drm->device)->chipset < 0x11)
483 dev->mode_config.async_page_flip = false;
484 else
485 dev->mode_config.async_page_flip = true;
486
487 drm_kms_helper_poll_init(dev);
488 drm_kms_helper_poll_disable(dev);
489
490 if (drm->vbios.dcb.entries) {
491 static const u16 oclass[] = {
492 GM107_DISP_CLASS,
493 NVF0_DISP_CLASS,
494 NVE0_DISP_CLASS,
495 NVD0_DISP_CLASS,
496 NVA3_DISP_CLASS,
497 NV94_DISP_CLASS,
498 NVA0_DISP_CLASS,
499 NV84_DISP_CLASS,
500 NV50_DISP_CLASS,
501 NV04_DISP_CLASS,
502 };
503 int i;
504
505 for (i = 0, ret = -ENODEV; ret && i < ARRAY_SIZE(oclass); i++) {
506 ret = nouveau_object_new(nv_object(drm), NVDRM_DEVICE,
507 NVDRM_DISPLAY, oclass[i],
508 NULL, 0, &disp->core);
509 }
510
511 if (ret == 0) {
512 if (nv_mclass(disp->core) < NV50_DISP_CLASS)
513 ret = nv04_display_create(dev);
514 else
515 ret = nv50_display_create(dev);
516 }
517 } else {
518 ret = 0;
519 }
520
521 if (ret)
522 goto disp_create_err;
523
524 if (dev->mode_config.num_crtc) {
525 ret = nouveau_display_vblank_init(dev);
526 if (ret)
527 goto vblank_err;
528 }
529
530 nouveau_backlight_init(dev);
531 return 0;
532
533 vblank_err:
534 disp->dtor(dev);
535 disp_create_err:
536 drm_kms_helper_poll_fini(dev);
537 drm_mode_config_cleanup(dev);
538 return ret;
539 }
540
541 void
542 nouveau_display_destroy(struct drm_device *dev)
543 {
544 struct nouveau_display *disp = nouveau_display(dev);
545 struct nouveau_drm *drm = nouveau_drm(dev);
546
547 nouveau_backlight_exit(dev);
548 nouveau_display_vblank_fini(dev);
549
550 drm_kms_helper_poll_fini(dev);
551 drm_mode_config_cleanup(dev);
552
553 if (disp->dtor)
554 disp->dtor(dev);
555
556 nouveau_object_del(nv_object(drm), NVDRM_DEVICE, NVDRM_DISPLAY);
557
558 nouveau_drm(dev)->display = NULL;
559 kfree(disp);
560 }
561
562 int
563 nouveau_display_suspend(struct drm_device *dev)
564 {
565 struct nouveau_drm *drm = nouveau_drm(dev);
566 struct drm_crtc *crtc;
567
568 nouveau_display_fini(dev);
569
570 NV_INFO(drm, "unpinning framebuffer(s)...\n");
571 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
572 struct nouveau_framebuffer *nouveau_fb;
573
574 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
575 if (!nouveau_fb || !nouveau_fb->nvbo)
576 continue;
577
578 nouveau_bo_unpin(nouveau_fb->nvbo);
579 }
580
581 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
582 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
583
584 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
585 nouveau_bo_unpin(nv_crtc->cursor.nvbo);
586 }
587
588 return 0;
589 }
590
591 void
592 nouveau_display_repin(struct drm_device *dev)
593 {
594 struct nouveau_drm *drm = nouveau_drm(dev);
595 struct drm_crtc *crtc;
596 int ret;
597
598 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
599 struct nouveau_framebuffer *nouveau_fb;
600
601 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
602 if (!nouveau_fb || !nouveau_fb->nvbo)
603 continue;
604
605 nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM);
606 }
607
608 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
609 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
610
611 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM);
612 if (!ret)
613 ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
614 if (ret)
615 NV_ERROR(drm, "Could not pin/map cursor.\n");
616 }
617 }
618
619 void
620 nouveau_display_resume(struct drm_device *dev)
621 {
622 struct drm_crtc *crtc;
623 nouveau_display_init(dev);
624
625 /* Force CLUT to get re-loaded during modeset */
626 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
627 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
628
629 nv_crtc->lut.depth = 0;
630 }
631
632 drm_helper_resume_force_mode(dev);
633
634 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
635 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
636 u32 offset = nv_crtc->cursor.nvbo->bo.offset;
637
638 nv_crtc->cursor.set_offset(nv_crtc, offset);
639 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
640 nv_crtc->cursor_saved_y);
641 }
642 }
643
644 static int
645 nouveau_page_flip_emit(struct nouveau_channel *chan,
646 struct nouveau_bo *old_bo,
647 struct nouveau_bo *new_bo,
648 struct nouveau_page_flip_state *s,
649 struct nouveau_fence **pfence)
650 {
651 struct nouveau_fence_chan *fctx = chan->fence;
652 struct nouveau_drm *drm = chan->drm;
653 struct drm_device *dev = drm->dev;
654 unsigned long flags;
655 int ret;
656
657 /* Queue it to the pending list */
658 spin_lock_irqsave(&dev->event_lock, flags);
659 list_add_tail(&s->head, &fctx->flip);
660 spin_unlock_irqrestore(&dev->event_lock, flags);
661
662 /* Synchronize with the old framebuffer */
663 ret = nouveau_fence_sync(old_bo->bo.sync_obj, chan);
664 if (ret)
665 goto fail;
666
667 /* Emit the pageflip */
668 ret = RING_SPACE(chan, 2);
669 if (ret)
670 goto fail;
671
672 if (nv_device(drm->device)->card_type < NV_C0)
673 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
674 else
675 BEGIN_NVC0(chan, FermiSw, NV_SW_PAGE_FLIP, 1);
676 OUT_RING (chan, 0x00000000);
677 FIRE_RING (chan);
678
679 ret = nouveau_fence_new(chan, false, pfence);
680 if (ret)
681 goto fail;
682
683 return 0;
684 fail:
685 spin_lock_irqsave(&dev->event_lock, flags);
686 list_del(&s->head);
687 spin_unlock_irqrestore(&dev->event_lock, flags);
688 return ret;
689 }
690
691 int
692 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
693 struct drm_pending_vblank_event *event, u32 flags)
694 {
695 const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
696 struct drm_device *dev = crtc->dev;
697 struct nouveau_drm *drm = nouveau_drm(dev);
698 struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
699 struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
700 struct nouveau_page_flip_state *s;
701 struct nouveau_channel *chan = drm->channel;
702 struct nouveau_fence *fence;
703 int ret;
704
705 if (!drm->channel)
706 return -ENODEV;
707
708 s = kzalloc(sizeof(*s), GFP_KERNEL);
709 if (!s)
710 return -ENOMEM;
711
712 if (new_bo != old_bo) {
713 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM);
714 if (ret)
715 goto fail_free;
716 }
717
718 mutex_lock(&chan->cli->mutex);
719
720 /* synchronise rendering channel with the kernel's channel */
721 spin_lock(&new_bo->bo.bdev->fence_lock);
722 fence = nouveau_fence_ref(new_bo->bo.sync_obj);
723 spin_unlock(&new_bo->bo.bdev->fence_lock);
724 ret = nouveau_fence_sync(fence, chan);
725 nouveau_fence_unref(&fence);
726 if (ret)
727 goto fail_unpin;
728
729 ret = ttm_bo_reserve(&old_bo->bo, true, false, false, NULL);
730 if (ret)
731 goto fail_unpin;
732
733 /* Initialize a page flip struct */
734 *s = (struct nouveau_page_flip_state)
735 { { }, event, nouveau_crtc(crtc)->index,
736 fb->bits_per_pixel, fb->pitches[0], crtc->x, crtc->y,
737 new_bo->bo.offset };
738
739 /* Keep vblanks on during flip, for the target crtc of this flip */
740 drm_vblank_get(dev, nouveau_crtc(crtc)->index);
741
742 /* Emit a page flip */
743 if (nv_device(drm->device)->card_type >= NV_50) {
744 ret = nv50_display_flip_next(crtc, fb, chan, swap_interval);
745 if (ret)
746 goto fail_unreserve;
747 } else {
748 struct nv04_display *dispnv04 = nv04_display(dev);
749 int head = nouveau_crtc(crtc)->index;
750
751 if (swap_interval) {
752 ret = RING_SPACE(chan, 8);
753 if (ret)
754 goto fail_unreserve;
755
756 BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
757 OUT_RING (chan, 0);
758 BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
759 OUT_RING (chan, head);
760 BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
761 OUT_RING (chan, 0);
762 BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
763 OUT_RING (chan, 0);
764 }
765
766 nouveau_bo_ref(new_bo, &dispnv04->image[head]);
767 }
768
769 ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
770 if (ret)
771 goto fail_unreserve;
772 mutex_unlock(&chan->cli->mutex);
773
774 /* Update the crtc struct and cleanup */
775 crtc->primary->fb = fb;
776
777 nouveau_bo_fence(old_bo, fence);
778 ttm_bo_unreserve(&old_bo->bo);
779 if (old_bo != new_bo)
780 nouveau_bo_unpin(old_bo);
781 nouveau_fence_unref(&fence);
782 return 0;
783
784 fail_unreserve:
785 drm_vblank_put(dev, nouveau_crtc(crtc)->index);
786 ttm_bo_unreserve(&old_bo->bo);
787 fail_unpin:
788 mutex_unlock(&chan->cli->mutex);
789 if (old_bo != new_bo)
790 nouveau_bo_unpin(new_bo);
791 fail_free:
792 kfree(s);
793 return ret;
794 }
795
796 int
797 nouveau_finish_page_flip(struct nouveau_channel *chan,
798 struct nouveau_page_flip_state *ps)
799 {
800 struct nouveau_fence_chan *fctx = chan->fence;
801 struct nouveau_drm *drm = chan->drm;
802 struct drm_device *dev = drm->dev;
803 struct nouveau_page_flip_state *s;
804 unsigned long flags;
805 int crtcid = -1;
806
807 spin_lock_irqsave(&dev->event_lock, flags);
808
809 if (list_empty(&fctx->flip)) {
810 NV_ERROR(drm, "unexpected pageflip\n");
811 spin_unlock_irqrestore(&dev->event_lock, flags);
812 return -EINVAL;
813 }
814
815 s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
816 if (s->event) {
817 /* Vblank timestamps/counts are only correct on >= NV-50 */
818 if (nv_device(drm->device)->card_type >= NV_50)
819 crtcid = s->crtc;
820
821 drm_send_vblank_event(dev, crtcid, s->event);
822 }
823
824 /* Give up ownership of vblank for page-flipped crtc */
825 drm_vblank_put(dev, s->crtc);
826
827 list_del(&s->head);
828 if (ps)
829 *ps = *s;
830 kfree(s);
831
832 spin_unlock_irqrestore(&dev->event_lock, flags);
833 return 0;
834 }
835
836 int
837 nouveau_flip_complete(void *data)
838 {
839 struct nouveau_channel *chan = data;
840 struct nouveau_drm *drm = chan->drm;
841 struct nouveau_page_flip_state state;
842
843 if (!nouveau_finish_page_flip(chan, &state)) {
844 if (nv_device(drm->device)->card_type < NV_50) {
845 nv_set_crtc_base(drm->dev, state.crtc, state.offset +
846 state.y * state.pitch +
847 state.x * state.bpp / 8);
848 }
849 }
850
851 return 0;
852 }
853
854 int
855 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
856 struct drm_mode_create_dumb *args)
857 {
858 struct nouveau_bo *bo;
859 int ret;
860
861 args->pitch = roundup(args->width * (args->bpp / 8), 256);
862 args->size = args->pitch * args->height;
863 args->size = roundup(args->size, PAGE_SIZE);
864
865 ret = nouveau_gem_new(dev, args->size, 0, NOUVEAU_GEM_DOMAIN_VRAM, 0, 0, &bo);
866 if (ret)
867 return ret;
868
869 ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
870 drm_gem_object_unreference_unlocked(&bo->gem);
871 return ret;
872 }
873
874 int
875 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
876 struct drm_device *dev,
877 uint32_t handle, uint64_t *poffset)
878 {
879 struct drm_gem_object *gem;
880
881 gem = drm_gem_object_lookup(dev, file_priv, handle);
882 if (gem) {
883 struct nouveau_bo *bo = nouveau_gem_object(gem);
884 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
885 drm_gem_object_unreference_unlocked(gem);
886 return 0;
887 }
888
889 return -ENOENT;
890 }
Linux with added FPC-III support