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Linux 4.19-rc7
[linux-2.6/btrfs-unstable.git] / drivers / gpu / drm / nouveau / nouveau_display.c
blob540c0cbbfcee41bf3fdae2fa339d71373e58a133
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 #include <drm/drm_fb_helper.h>
33
34 #include <nvif/class.h>
35
36 #include "nouveau_fbcon.h"
37 #include "dispnv04/hw.h"
38 #include "nouveau_crtc.h"
39 #include "nouveau_dma.h"
40 #include "nouveau_gem.h"
41 #include "nouveau_connector.h"
42 #include "nv50_display.h"
43
44 #include "nouveau_fence.h"
45
46 #include <nvif/cl0046.h>
47 #include <nvif/event.h>
48
49 static int
50 nouveau_display_vblank_handler(struct nvif_notify *notify)
51 {
52 struct nouveau_crtc *nv_crtc =
53 container_of(notify, typeof(*nv_crtc), vblank);
54 drm_crtc_handle_vblank(&nv_crtc->base);
55 return NVIF_NOTIFY_KEEP;
56 }
57
58 int
59 nouveau_display_vblank_enable(struct drm_device *dev, unsigned int pipe)
60 {
61 struct drm_crtc *crtc;
62 struct nouveau_crtc *nv_crtc;
63
64 crtc = drm_crtc_from_index(dev, pipe);
65 if (!crtc)
66 return -EINVAL;
67
68 nv_crtc = nouveau_crtc(crtc);
69 nvif_notify_get(&nv_crtc->vblank);
70
71 return 0;
72 }
73
74 void
75 nouveau_display_vblank_disable(struct drm_device *dev, unsigned int pipe)
76 {
77 struct drm_crtc *crtc;
78 struct nouveau_crtc *nv_crtc;
79
80 crtc = drm_crtc_from_index(dev, pipe);
81 if (!crtc)
82 return;
83
84 nv_crtc = nouveau_crtc(crtc);
85 nvif_notify_put(&nv_crtc->vblank);
86 }
87
88 static inline int
89 calc(int blanks, int blanke, int total, int line)
90 {
91 if (blanke >= blanks) {
92 if (line >= blanks)
93 line -= total;
94 } else {
95 if (line >= blanks)
96 line -= total;
97 line -= blanke + 1;
98 }
99 return line;
100 }
101
102 static bool
103 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
104 ktime_t *stime, ktime_t *etime)
105 {
106 struct {
107 struct nv04_disp_mthd_v0 base;
108 struct nv04_disp_scanoutpos_v0 scan;
109 } args = {
110 .base.method = NV04_DISP_SCANOUTPOS,
111 .base.head = nouveau_crtc(crtc)->index,
112 };
113 struct nouveau_display *disp = nouveau_display(crtc->dev);
114 struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
115 int retry = 20;
116 bool ret = false;
117
118 do {
119 ret = nvif_mthd(&disp->disp.object, 0, &args, sizeof(args));
120 if (ret != 0)
121 return false;
122
123 if (args.scan.vline) {
124 ret = true;
125 break;
126 }
127
128 if (retry) ndelay(vblank->linedur_ns);
129 } while (retry--);
130
131 *hpos = args.scan.hline;
132 *vpos = calc(args.scan.vblanks, args.scan.vblanke,
133 args.scan.vtotal, args.scan.vline);
134 if (stime) *stime = ns_to_ktime(args.scan.time[0]);
135 if (etime) *etime = ns_to_ktime(args.scan.time[1]);
136
137 return ret;
138 }
139
140 bool
141 nouveau_display_scanoutpos(struct drm_device *dev, unsigned int pipe,
142 bool in_vblank_irq, int *vpos, int *hpos,
143 ktime_t *stime, ktime_t *etime,
144 const struct drm_display_mode *mode)
145 {
146 struct drm_crtc *crtc;
147
148 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
149 if (nouveau_crtc(crtc)->index == pipe) {
150 return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
151 stime, etime);
152 }
153 }
154
155 return false;
156 }
157
158 static void
159 nouveau_display_vblank_fini(struct drm_device *dev)
160 {
161 struct drm_crtc *crtc;
162
163 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
164 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
165 nvif_notify_fini(&nv_crtc->vblank);
166 }
167 }
168
169 static int
170 nouveau_display_vblank_init(struct drm_device *dev)
171 {
172 struct nouveau_display *disp = nouveau_display(dev);
173 struct drm_crtc *crtc;
174 int ret;
175
176 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
177 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
178 ret = nvif_notify_init(&disp->disp.object,
179 nouveau_display_vblank_handler, false,
180 NV04_DISP_NTFY_VBLANK,
181 &(struct nvif_notify_head_req_v0) {
182 .head = nv_crtc->index,
183 },
184 sizeof(struct nvif_notify_head_req_v0),
185 sizeof(struct nvif_notify_head_rep_v0),
186 &nv_crtc->vblank);
187 if (ret) {
188 nouveau_display_vblank_fini(dev);
189 return ret;
190 }
191 }
192
193 ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
194 if (ret) {
195 nouveau_display_vblank_fini(dev);
196 return ret;
197 }
198
199 return 0;
200 }
201
202 static void
203 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
204 {
205 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
206
207 if (fb->nvbo)
208 drm_gem_object_put_unlocked(&fb->nvbo->gem);
209
210 drm_framebuffer_cleanup(drm_fb);
211 kfree(fb);
212 }
213
214 static int
215 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
216 struct drm_file *file_priv,
217 unsigned int *handle)
218 {
219 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
220
221 return drm_gem_handle_create(file_priv, &fb->nvbo->gem, handle);
222 }
223
224 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
225 .destroy = nouveau_user_framebuffer_destroy,
226 .create_handle = nouveau_user_framebuffer_create_handle,
227 };
228
229 int
230 nouveau_framebuffer_new(struct drm_device *dev,
231 const struct drm_mode_fb_cmd2 *mode_cmd,
232 struct nouveau_bo *nvbo,
233 struct nouveau_framebuffer **pfb)
234 {
235 struct nouveau_drm *drm = nouveau_drm(dev);
236 struct nouveau_framebuffer *fb;
237 int ret;
238
239 /* YUV overlays have special requirements pre-NV50 */
240 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA &&
241
242 (mode_cmd->pixel_format == DRM_FORMAT_YUYV ||
243 mode_cmd->pixel_format == DRM_FORMAT_UYVY ||
244 mode_cmd->pixel_format == DRM_FORMAT_NV12 ||
245 mode_cmd->pixel_format == DRM_FORMAT_NV21) &&
246 (mode_cmd->pitches[0] & 0x3f || /* align 64 */
247 mode_cmd->pitches[0] >= 0x10000 || /* at most 64k pitch */
248 (mode_cmd->pitches[1] && /* pitches for planes must match */
249 mode_cmd->pitches[0] != mode_cmd->pitches[1]))) {
250 struct drm_format_name_buf format_name;
251 DRM_DEBUG_KMS("Unsuitable framebuffer: format: %s; pitches: 0x%x\n 0x%x\n",
252 drm_get_format_name(mode_cmd->pixel_format,
253 &format_name),
254 mode_cmd->pitches[0],
255 mode_cmd->pitches[1]);
256 return -EINVAL;
257 }
258
259 if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
260 return -ENOMEM;
261
262 drm_helper_mode_fill_fb_struct(dev, &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_put_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 while (p && l->gen_mask) { \
342 if (l->gen_mask & (1 << (gen))) { \
343 drm_property_add_enum(p, l->type, l->name); \
344 } \
345 l++; \
346 } \
347 } \
348 } while(0)
349
350 static void
351 nouveau_display_hpd_work(struct work_struct *work)
352 {
353 struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
354
355 pm_runtime_get_sync(drm->dev->dev);
356
357 drm_helper_hpd_irq_event(drm->dev);
358
359 pm_runtime_mark_last_busy(drm->dev->dev);
360 pm_runtime_put_sync(drm->dev->dev);
361 }
362
363 #ifdef CONFIG_ACPI
364
365 /*
366 * Hans de Goede: This define belongs in acpi/video.h, I've submitted a patch
367 * to the acpi subsys to move it there from drivers/acpi/acpi_video.c .
368 * This should be dropped once that is merged.
369 */
370 #ifndef ACPI_VIDEO_NOTIFY_PROBE
371 #define ACPI_VIDEO_NOTIFY_PROBE 0x81
372 #endif
373
374 static int
375 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
376 void *data)
377 {
378 struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
379 struct acpi_bus_event *info = data;
380 int ret;
381
382 if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
383 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
384 ret = pm_runtime_get(drm->dev->dev);
385 if (ret == 1 || ret == -EACCES) {
386 /* If the GPU is already awake, or in a state
387 * where we can't wake it up, it can handle
388 * it's own hotplug events.
389 */
390 pm_runtime_put_autosuspend(drm->dev->dev);
391 } else if (ret == 0) {
392 /* This may be the only indication we receive
393 * of a connector hotplug on a runtime
394 * suspended GPU, schedule hpd_work to check.
395 */
396 NV_DEBUG(drm, "ACPI requested connector reprobe\n");
397 schedule_work(&drm->hpd_work);
398 pm_runtime_put_noidle(drm->dev->dev);
399 } else {
400 NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n",
401 ret);
402 }
403
404 /* acpi-video should not generate keypresses for this */
405 return NOTIFY_BAD;
406 }
407 }
408
409 return NOTIFY_DONE;
410 }
411 #endif
412
413 int
414 nouveau_display_init(struct drm_device *dev)
415 {
416 struct nouveau_display *disp = nouveau_display(dev);
417 struct nouveau_drm *drm = nouveau_drm(dev);
418 struct drm_connector *connector;
419 struct drm_connector_list_iter conn_iter;
420 int ret;
421
422 ret = disp->init(dev);
423 if (ret)
424 return ret;
425
426 /* enable connector detection and polling for connectors without HPD
427 * support
428 */
429 drm_kms_helper_poll_enable(dev);
430
431 /* enable hotplug interrupts */
432 drm_connector_list_iter_begin(dev, &conn_iter);
433 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
434 struct nouveau_connector *conn = nouveau_connector(connector);
435 nvif_notify_get(&conn->hpd);
436 }
437 drm_connector_list_iter_end(&conn_iter);
438
439 /* enable flip completion events */
440 nvif_notify_get(&drm->flip);
441 return ret;
442 }
443
444 void
445 nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
446 {
447 struct nouveau_display *disp = nouveau_display(dev);
448 struct nouveau_drm *drm = nouveau_drm(dev);
449 struct drm_connector *connector;
450 struct drm_connector_list_iter conn_iter;
451
452 if (!suspend) {
453 if (drm_drv_uses_atomic_modeset(dev))
454 drm_atomic_helper_shutdown(dev);
455 else
456 drm_crtc_force_disable_all(dev);
457 }
458
459 /* disable flip completion events */
460 nvif_notify_put(&drm->flip);
461
462 /* disable hotplug interrupts */
463 drm_connector_list_iter_begin(dev, &conn_iter);
464 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
465 struct nouveau_connector *conn = nouveau_connector(connector);
466 nvif_notify_put(&conn->hpd);
467 }
468 drm_connector_list_iter_end(&conn_iter);
469
470 if (!runtime)
471 cancel_work_sync(&drm->hpd_work);
472
473 drm_kms_helper_poll_disable(dev);
474 disp->fini(dev);
475 }
476
477 static void
478 nouveau_display_create_properties(struct drm_device *dev)
479 {
480 struct nouveau_display *disp = nouveau_display(dev);
481 int gen;
482
483 if (disp->disp.object.oclass < NV50_DISP)
484 gen = 0;
485 else
486 if (disp->disp.object.oclass < GF110_DISP)
487 gen = 1;
488 else
489 gen = 2;
490
491 PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
492 PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
493 PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
494
495 disp->underscan_hborder_property =
496 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
497
498 disp->underscan_vborder_property =
499 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
500
501 if (gen < 1)
502 return;
503
504 /* -90..+90 */
505 disp->vibrant_hue_property =
506 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
507
508 /* -100..+100 */
509 disp->color_vibrance_property =
510 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
511 }
512
513 int
514 nouveau_display_create(struct drm_device *dev)
515 {
516 struct nouveau_drm *drm = nouveau_drm(dev);
517 struct nvkm_device *device = nvxx_device(&drm->client.device);
518 struct nouveau_display *disp;
519 int ret;
520
521 disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
522 if (!disp)
523 return -ENOMEM;
524
525 drm_mode_config_init(dev);
526 drm_mode_create_scaling_mode_property(dev);
527 drm_mode_create_dvi_i_properties(dev);
528
529 dev->mode_config.funcs = &nouveau_mode_config_funcs;
530 dev->mode_config.fb_base = device->func->resource_addr(device, 1);
531
532 dev->mode_config.min_width = 0;
533 dev->mode_config.min_height = 0;
534 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
535 dev->mode_config.max_width = 2048;
536 dev->mode_config.max_height = 2048;
537 } else
538 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
539 dev->mode_config.max_width = 4096;
540 dev->mode_config.max_height = 4096;
541 } else
542 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
543 dev->mode_config.max_width = 8192;
544 dev->mode_config.max_height = 8192;
545 } else {
546 dev->mode_config.max_width = 16384;
547 dev->mode_config.max_height = 16384;
548 }
549
550 dev->mode_config.preferred_depth = 24;
551 dev->mode_config.prefer_shadow = 1;
552
553 if (drm->client.device.info.chipset < 0x11)
554 dev->mode_config.async_page_flip = false;
555 else
556 dev->mode_config.async_page_flip = true;
557
558 drm_kms_helper_poll_init(dev);
559 drm_kms_helper_poll_disable(dev);
560
561 if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
562 ret = nvif_disp_ctor(&drm->client.device, 0, &disp->disp);
563 if (ret == 0) {
564 nouveau_display_create_properties(dev);
565 if (disp->disp.object.oclass < NV50_DISP)
566 ret = nv04_display_create(dev);
567 else
568 ret = nv50_display_create(dev);
569 }
570 } else {
571 ret = 0;
572 }
573
574 if (ret)
575 goto disp_create_err;
576
577 drm_mode_config_reset(dev);
578
579 if (dev->mode_config.num_crtc) {
580 ret = nouveau_display_vblank_init(dev);
581 if (ret)
582 goto vblank_err;
583 }
584
585 nouveau_backlight_init(dev);
586 INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
587 #ifdef CONFIG_ACPI
588 drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
589 register_acpi_notifier(&drm->acpi_nb);
590 #endif
591
592 return 0;
593
594 vblank_err:
595 disp->dtor(dev);
596 disp_create_err:
597 drm_kms_helper_poll_fini(dev);
598 drm_mode_config_cleanup(dev);
599 return ret;
600 }
601
602 void
603 nouveau_display_destroy(struct drm_device *dev)
604 {
605 struct nouveau_display *disp = nouveau_display(dev);
606
607 #ifdef CONFIG_ACPI
608 unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb);
609 #endif
610 nouveau_backlight_exit(dev);
611 nouveau_display_vblank_fini(dev);
612
613 drm_kms_helper_poll_fini(dev);
614 drm_mode_config_cleanup(dev);
615
616 if (disp->dtor)
617 disp->dtor(dev);
618
619 nvif_disp_dtor(&disp->disp);
620
621 nouveau_drm(dev)->display = NULL;
622 kfree(disp);
623 }
624
625 int
626 nouveau_display_suspend(struct drm_device *dev, bool runtime)
627 {
628 struct nouveau_display *disp = nouveau_display(dev);
629 struct drm_crtc *crtc;
630
631 if (drm_drv_uses_atomic_modeset(dev)) {
632 if (!runtime) {
633 disp->suspend = drm_atomic_helper_suspend(dev);
634 if (IS_ERR(disp->suspend)) {
635 int ret = PTR_ERR(disp->suspend);
636 disp->suspend = NULL;
637 return ret;
638 }
639 }
640
641 nouveau_display_fini(dev, true, runtime);
642 return 0;
643 }
644
645 nouveau_display_fini(dev, true, runtime);
646
647 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
648 struct nouveau_framebuffer *nouveau_fb;
649
650 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
651 if (!nouveau_fb || !nouveau_fb->nvbo)
652 continue;
653
654 nouveau_bo_unpin(nouveau_fb->nvbo);
655 }
656
657 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
658 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
659 if (nv_crtc->cursor.nvbo) {
660 if (nv_crtc->cursor.set_offset)
661 nouveau_bo_unmap(nv_crtc->cursor.nvbo);
662 nouveau_bo_unpin(nv_crtc->cursor.nvbo);
663 }
664 }
665
666 return 0;
667 }
668
669 void
670 nouveau_display_resume(struct drm_device *dev, bool runtime)
671 {
672 struct nouveau_display *disp = nouveau_display(dev);
673 struct nouveau_drm *drm = nouveau_drm(dev);
674 struct drm_crtc *crtc;
675 int ret;
676
677 if (drm_drv_uses_atomic_modeset(dev)) {
678 nouveau_display_init(dev);
679 if (disp->suspend) {
680 drm_atomic_helper_resume(dev, disp->suspend);
681 disp->suspend = NULL;
682 }
683 return;
684 }
685
686 /* re-pin fb/cursors */
687 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
688 struct nouveau_framebuffer *nouveau_fb;
689
690 nouveau_fb = nouveau_framebuffer(crtc->primary->fb);
691 if (!nouveau_fb || !nouveau_fb->nvbo)
692 continue;
693
694 ret = nouveau_bo_pin(nouveau_fb->nvbo, TTM_PL_FLAG_VRAM, true);
695 if (ret)
696 NV_ERROR(drm, "Could not pin framebuffer\n");
697 }
698
699 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
700 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
701 if (!nv_crtc->cursor.nvbo)
702 continue;
703
704 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, true);
705 if (!ret && nv_crtc->cursor.set_offset)
706 ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
707 if (ret)
708 NV_ERROR(drm, "Could not pin/map cursor.\n");
709 }
710
711 nouveau_display_init(dev);
712
713 /* Force CLUT to get re-loaded during modeset */
714 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
715 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
716
717 nv_crtc->lut.depth = 0;
718 }
719
720 /* This should ensure we don't hit a locking problem when someone
721 * wakes us up via a connector. We should never go into suspend
722 * while the display is on anyways.
723 */
724 if (runtime)
725 return;
726
727 drm_helper_resume_force_mode(dev);
728
729 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
730 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
731
732 if (!nv_crtc->cursor.nvbo)
733 continue;
734
735 if (nv_crtc->cursor.set_offset)
736 nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.nvbo->bo.offset);
737 nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
738 nv_crtc->cursor_saved_y);
739 }
740 }
741
742 static int
743 nouveau_page_flip_emit(struct nouveau_channel *chan,
744 struct nouveau_bo *old_bo,
745 struct nouveau_bo *new_bo,
746 struct nouveau_page_flip_state *s,
747 struct nouveau_fence **pfence)
748 {
749 struct nouveau_fence_chan *fctx = chan->fence;
750 struct nouveau_drm *drm = chan->drm;
751 struct drm_device *dev = drm->dev;
752 unsigned long flags;
753 int ret;
754
755 /* Queue it to the pending list */
756 spin_lock_irqsave(&dev->event_lock, flags);
757 list_add_tail(&s->head, &fctx->flip);
758 spin_unlock_irqrestore(&dev->event_lock, flags);
759
760 /* Synchronize with the old framebuffer */
761 ret = nouveau_fence_sync(old_bo, chan, false, false);
762 if (ret)
763 goto fail;
764
765 /* Emit the pageflip */
766 ret = RING_SPACE(chan, 2);
767 if (ret)
768 goto fail;
769
770 BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
771 OUT_RING (chan, 0x00000000);
772 FIRE_RING (chan);
773
774 ret = nouveau_fence_new(chan, false, pfence);
775 if (ret)
776 goto fail;
777
778 return 0;
779 fail:
780 spin_lock_irqsave(&dev->event_lock, flags);
781 list_del(&s->head);
782 spin_unlock_irqrestore(&dev->event_lock, flags);
783 return ret;
784 }
785
786 int
787 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
788 struct drm_pending_vblank_event *event, u32 flags,
789 struct drm_modeset_acquire_ctx *ctx)
790 {
791 const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
792 struct drm_device *dev = crtc->dev;
793 struct nouveau_drm *drm = nouveau_drm(dev);
794 struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->primary->fb)->nvbo;
795 struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
796 struct nouveau_page_flip_state *s;
797 struct nouveau_channel *chan;
798 struct nouveau_cli *cli;
799 struct nouveau_fence *fence;
800 struct nv04_display *dispnv04 = nv04_display(dev);
801 int head = nouveau_crtc(crtc)->index;
802 int ret;
803
804 chan = drm->channel;
805 if (!chan)
806 return -ENODEV;
807 cli = (void *)chan->user.client;
808
809 s = kzalloc(sizeof(*s), GFP_KERNEL);
810 if (!s)
811 return -ENOMEM;
812
813 if (new_bo != old_bo) {
814 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true);
815 if (ret)
816 goto fail_free;
817 }
818
819 mutex_lock(&cli->mutex);
820 ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL);
821 if (ret)
822 goto fail_unpin;
823
824 /* synchronise rendering channel with the kernel's channel */
825 ret = nouveau_fence_sync(new_bo, chan, false, true);
826 if (ret) {
827 ttm_bo_unreserve(&new_bo->bo);
828 goto fail_unpin;
829 }
830
831 if (new_bo != old_bo) {
832 ttm_bo_unreserve(&new_bo->bo);
833
834 ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL);
835 if (ret)
836 goto fail_unpin;
837 }
838
839 /* Initialize a page flip struct */
840 *s = (struct nouveau_page_flip_state)
841 { { }, event, crtc, fb->format->cpp[0] * 8, fb->pitches[0],
842 new_bo->bo.offset };
843
844 /* Keep vblanks on during flip, for the target crtc of this flip */
845 drm_crtc_vblank_get(crtc);
846
847 /* Emit a page flip */
848 if (swap_interval) {
849 ret = RING_SPACE(chan, 8);
850 if (ret)
851 goto fail_unreserve;
852
853 BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
854 OUT_RING (chan, 0);
855 BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
856 OUT_RING (chan, head);
857 BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
858 OUT_RING (chan, 0);
859 BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
860 OUT_RING (chan, 0);
861 }
862
863 nouveau_bo_ref(new_bo, &dispnv04->image[head]);
864
865 ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
866 if (ret)
867 goto fail_unreserve;
868 mutex_unlock(&cli->mutex);
869
870 /* Update the crtc struct and cleanup */
871 crtc->primary->fb = fb;
872
873 nouveau_bo_fence(old_bo, fence, false);
874 ttm_bo_unreserve(&old_bo->bo);
875 if (old_bo != new_bo)
876 nouveau_bo_unpin(old_bo);
877 nouveau_fence_unref(&fence);
878 return 0;
879
880 fail_unreserve:
881 drm_crtc_vblank_put(crtc);
882 ttm_bo_unreserve(&old_bo->bo);
883 fail_unpin:
884 mutex_unlock(&cli->mutex);
885 if (old_bo != new_bo)
886 nouveau_bo_unpin(new_bo);
887 fail_free:
888 kfree(s);
889 return ret;
890 }
891
892 int
893 nouveau_finish_page_flip(struct nouveau_channel *chan,
894 struct nouveau_page_flip_state *ps)
895 {
896 struct nouveau_fence_chan *fctx = chan->fence;
897 struct nouveau_drm *drm = chan->drm;
898 struct drm_device *dev = drm->dev;
899 struct nouveau_page_flip_state *s;
900 unsigned long flags;
901
902 spin_lock_irqsave(&dev->event_lock, flags);
903
904 if (list_empty(&fctx->flip)) {
905 NV_ERROR(drm, "unexpected pageflip\n");
906 spin_unlock_irqrestore(&dev->event_lock, flags);
907 return -EINVAL;
908 }
909
910 s = list_first_entry(&fctx->flip, struct nouveau_page_flip_state, head);
911 if (s->event) {
912 drm_crtc_arm_vblank_event(s->crtc, s->event);
913 } else {
914 /* Give up ownership of vblank for page-flipped crtc */
915 drm_crtc_vblank_put(s->crtc);
916 }
917
918 list_del(&s->head);
919 if (ps)
920 *ps = *s;
921 kfree(s);
922
923 spin_unlock_irqrestore(&dev->event_lock, flags);
924 return 0;
925 }
926
927 int
928 nouveau_flip_complete(struct nvif_notify *notify)
929 {
930 struct nouveau_drm *drm = container_of(notify, typeof(*drm), flip);
931 struct nouveau_channel *chan = drm->channel;
932 struct nouveau_page_flip_state state;
933
934 if (!nouveau_finish_page_flip(chan, &state)) {
935 nv_set_crtc_base(drm->dev, drm_crtc_index(state.crtc),
936 state.offset + state.crtc->y *
937 state.pitch + state.crtc->x *
938 state.bpp / 8);
939 }
940
941 return NVIF_NOTIFY_KEEP;
942 }
943
944 int
945 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
946 struct drm_mode_create_dumb *args)
947 {
948 struct nouveau_cli *cli = nouveau_cli(file_priv);
949 struct nouveau_bo *bo;
950 uint32_t domain;
951 int ret;
952
953 args->pitch = roundup(args->width * (args->bpp / 8), 256);
954 args->size = args->pitch * args->height;
955 args->size = roundup(args->size, PAGE_SIZE);
956
957 /* Use VRAM if there is any ; otherwise fallback to system memory */
958 if (nouveau_drm(dev)->client.device.info.ram_size != 0)
959 domain = NOUVEAU_GEM_DOMAIN_VRAM;
960 else
961 domain = NOUVEAU_GEM_DOMAIN_GART;
962
963 ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
964 if (ret)
965 return ret;
966
967 ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
968 drm_gem_object_put_unlocked(&bo->gem);
969 return ret;
970 }
971
972 int
973 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
974 struct drm_device *dev,
975 uint32_t handle, uint64_t *poffset)
976 {
977 struct drm_gem_object *gem;
978
979 gem = drm_gem_object_lookup(file_priv, handle);
980 if (gem) {
981 struct nouveau_bo *bo = nouveau_gem_object(gem);
982 *poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
983 drm_gem_object_put_unlocked(gem);
984 return 0;
985 }
986
987 return -ENOENT;
988 }
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