1 /* $NetBSD: nouveau_display.c,v 1.5 2021/12/18 23:45:32 riastradh Exp $ */
2
3 /*
4 * Copyright (C) 2008 Maarten Maathuis.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining
8 * a copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sublicense, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial
17 * portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
22 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 */
28
29 #include <sys/cdefs.h>
30 __KERNEL_RCSID(0, "$NetBSD: nouveau_display.c,v 1.5 2021/12/18 23:45:32 riastradh Exp $");
31
32 #include <acpi/video.h>
33
34 #include <drm/drm_atomic.h>
35 #include <drm/drm_atomic_helper.h>
36 #include <drm/drm_crtc_helper.h>
37 #include <drm/drm_fb_helper.h>
38 #include <drm/drm_fourcc.h>
39 #include <drm/drm_probe_helper.h>
40 #include <drm/drm_vblank.h>
41
42 #include "nouveau_fbcon.h"
43 #include "nouveau_crtc.h"
44 #include "nouveau_gem.h"
45 #include "nouveau_connector.h"
46 #include "nv50_display.h"
47
48 #include <nvif/class.h>
49 #include <nvif/cl0046.h>
50 #include <nvif/event.h>
51
52 static int
nouveau_display_vblank_handler(struct nvif_notify * notify)53 nouveau_display_vblank_handler(struct nvif_notify *notify)
54 {
55 struct nouveau_crtc *nv_crtc =
56 container_of(notify, typeof(*nv_crtc), vblank);
57 drm_crtc_handle_vblank(&nv_crtc->base);
58 return NVIF_NOTIFY_KEEP;
59 }
60
61 int
nouveau_display_vblank_enable(struct drm_device * dev,unsigned int pipe)62 nouveau_display_vblank_enable(struct drm_device *dev, unsigned int pipe)
63 {
64 struct drm_crtc *crtc;
65 struct nouveau_crtc *nv_crtc;
66
67 crtc = drm_crtc_from_index(dev, pipe);
68 if (!crtc)
69 return -EINVAL;
70
71 nv_crtc = nouveau_crtc(crtc);
72 nvif_notify_get(&nv_crtc->vblank);
73
74 return 0;
75 }
76
77 void
nouveau_display_vblank_disable(struct drm_device * dev,unsigned int pipe)78 nouveau_display_vblank_disable(struct drm_device *dev, unsigned int pipe)
79 {
80 struct drm_crtc *crtc;
81 struct nouveau_crtc *nv_crtc;
82
83 crtc = drm_crtc_from_index(dev, pipe);
84 if (!crtc)
85 return;
86
87 nv_crtc = nouveau_crtc(crtc);
88 nvif_notify_put(&nv_crtc->vblank);
89 }
90
91 static inline int
calc(int blanks,int blanke,int total,int line)92 calc(int blanks, int blanke, int total, int line)
93 {
94 if (blanke >= blanks) {
95 if (line >= blanks)
96 line -= total;
97 } else {
98 if (line >= blanks)
99 line -= total;
100 line -= blanke + 1;
101 }
102 return line;
103 }
104
105 static bool
nouveau_display_scanoutpos_head(struct drm_crtc * crtc,int * vpos,int * hpos,ktime_t * stime,ktime_t * etime)106 nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
107 ktime_t *stime, ktime_t *etime)
108 {
109 struct {
110 struct nv04_disp_mthd_v0 base;
111 struct nv04_disp_scanoutpos_v0 scan;
112 } args = {
113 .base.method = NV04_DISP_SCANOUTPOS,
114 .base.head = nouveau_crtc(crtc)->index,
115 };
116 struct nouveau_display *disp = nouveau_display(crtc->dev);
117 struct drm_vblank_crtc *vblank = &crtc->dev->vblank[drm_crtc_index(crtc)];
118 int retry = 20;
119 bool ret = false;
120
121 do {
122 ret = nvif_mthd(&disp->disp.object, 0, &args, sizeof(args));
123 if (ret != 0)
124 return false;
125
126 if (args.scan.vline) {
127 ret = true;
128 break;
129 }
130
131 if (retry) ndelay(vblank->linedur_ns);
132 } while (retry--);
133
134 *hpos = args.scan.hline;
135 *vpos = calc(args.scan.vblanks, args.scan.vblanke,
136 args.scan.vtotal, args.scan.vline);
137 if (stime) *stime = ns_to_ktime(args.scan.time[0]);
138 if (etime) *etime = ns_to_ktime(args.scan.time[1]);
139
140 return ret;
141 }
142
143 bool
nouveau_display_scanoutpos(struct drm_device * dev,unsigned int pipe,bool in_vblank_irq,int * vpos,int * hpos,ktime_t * stime,ktime_t * etime,const struct drm_display_mode * mode)144 nouveau_display_scanoutpos(struct drm_device *dev, unsigned int pipe,
145 bool in_vblank_irq, int *vpos, int *hpos,
146 ktime_t *stime, ktime_t *etime,
147 const struct drm_display_mode *mode)
148 {
149 struct drm_crtc *crtc;
150
151 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
152 if (nouveau_crtc(crtc)->index == pipe) {
153 return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
154 stime, etime);
155 }
156 }
157
158 return false;
159 }
160
161 static void
nouveau_display_vblank_fini(struct drm_device * dev)162 nouveau_display_vblank_fini(struct drm_device *dev)
163 {
164 struct drm_crtc *crtc;
165
166 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
167 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
168 nvif_notify_fini(&nv_crtc->vblank);
169 }
170 }
171
172 static int
nouveau_display_vblank_init(struct drm_device * dev)173 nouveau_display_vblank_init(struct drm_device *dev)
174 {
175 struct nouveau_display *disp = nouveau_display(dev);
176 struct drm_crtc *crtc;
177 int ret;
178
179 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
180 struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
181 ret = nvif_notify_init(&disp->disp.object,
182 nouveau_display_vblank_handler, false,
183 NV04_DISP_NTFY_VBLANK,
184 &(struct nvif_notify_head_req_v0) {
185 .head = nv_crtc->index,
186 },
187 sizeof(struct nvif_notify_head_req_v0),
188 sizeof(struct nvif_notify_head_rep_v0),
189 &nv_crtc->vblank);
190 if (ret) {
191 nouveau_display_vblank_fini(dev);
192 return ret;
193 }
194 }
195
196 ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
197 if (ret) {
198 nouveau_display_vblank_fini(dev);
199 return ret;
200 }
201
202 return 0;
203 }
204
205 static void
nouveau_user_framebuffer_destroy(struct drm_framebuffer * drm_fb)206 nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
207 {
208 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
209
210 if (fb->nvbo)
211 drm_gem_object_put_unlocked(&fb->nvbo->bo.base);
212
213 drm_framebuffer_cleanup(drm_fb);
214 kfree(fb);
215 }
216
217 static int
nouveau_user_framebuffer_create_handle(struct drm_framebuffer * drm_fb,struct drm_file * file_priv,unsigned int * handle)218 nouveau_user_framebuffer_create_handle(struct drm_framebuffer *drm_fb,
219 struct drm_file *file_priv,
220 unsigned int *handle)
221 {
222 struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
223
224 return drm_gem_handle_create(file_priv, &fb->nvbo->bo.base, handle);
225 }
226
227 static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
228 .destroy = nouveau_user_framebuffer_destroy,
229 .create_handle = nouveau_user_framebuffer_create_handle,
230 };
231
232 int
nouveau_framebuffer_new(struct drm_device * dev,const struct drm_mode_fb_cmd2 * mode_cmd,struct nouveau_bo * nvbo,struct nouveau_framebuffer ** pfb)233 nouveau_framebuffer_new(struct drm_device *dev,
234 const struct drm_mode_fb_cmd2 *mode_cmd,
235 struct nouveau_bo *nvbo,
236 struct nouveau_framebuffer **pfb)
237 {
238 struct nouveau_drm *drm = nouveau_drm(dev);
239 struct nouveau_framebuffer *fb;
240 int ret;
241
242 /* YUV overlays have special requirements pre-NV50 */
243 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA &&
244
245 (mode_cmd->pixel_format == DRM_FORMAT_YUYV ||
246 mode_cmd->pixel_format == DRM_FORMAT_UYVY ||
247 mode_cmd->pixel_format == DRM_FORMAT_NV12 ||
248 mode_cmd->pixel_format == DRM_FORMAT_NV21) &&
249 (mode_cmd->pitches[0] & 0x3f || /* align 64 */
250 mode_cmd->pitches[0] >= 0x10000 || /* at most 64k pitch */
251 (mode_cmd->pitches[1] && /* pitches for planes must match */
252 mode_cmd->pitches[0] != mode_cmd->pitches[1]))) {
253 struct drm_format_name_buf format_name;
254 DRM_DEBUG_KMS("Unsuitable framebuffer: format: %s; pitches: 0x%x\n 0x%x\n",
255 drm_get_format_name(mode_cmd->pixel_format,
256 &format_name),
257 mode_cmd->pitches[0],
258 mode_cmd->pitches[1]);
259 return -EINVAL;
260 }
261
262 if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
263 return -ENOMEM;
264
265 drm_helper_mode_fill_fb_struct(dev, &fb->base, mode_cmd);
266 fb->nvbo = nvbo;
267
268 ret = drm_framebuffer_init(dev, &fb->base, &nouveau_framebuffer_funcs);
269 if (ret)
270 kfree(fb);
271 return ret;
272 }
273
274 struct drm_framebuffer *
nouveau_user_framebuffer_create(struct drm_device * dev,struct drm_file * file_priv,const struct drm_mode_fb_cmd2 * mode_cmd)275 nouveau_user_framebuffer_create(struct drm_device *dev,
276 struct drm_file *file_priv,
277 const struct drm_mode_fb_cmd2 *mode_cmd)
278 {
279 struct nouveau_framebuffer *fb;
280 struct nouveau_bo *nvbo;
281 struct drm_gem_object *gem;
282 int ret;
283
284 gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
285 if (!gem)
286 return ERR_PTR(-ENOENT);
287 nvbo = nouveau_gem_object(gem);
288
289 ret = nouveau_framebuffer_new(dev, mode_cmd, nvbo, &fb);
290 if (ret == 0)
291 return &fb->base;
292
293 drm_gem_object_put_unlocked(gem);
294 return ERR_PTR(ret);
295 }
296
297 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
298 .fb_create = nouveau_user_framebuffer_create,
299 .output_poll_changed = nouveau_fbcon_output_poll_changed,
300 };
301
302
303 struct nouveau_drm_prop_enum_list {
304 u8 gen_mask;
305 int type;
306 const char *name;
307 };
308
309 static struct nouveau_drm_prop_enum_list underscan[] = {
310 { 6, UNDERSCAN_AUTO, "auto" },
311 { 6, UNDERSCAN_OFF, "off" },
312 { 6, UNDERSCAN_ON, "on" },
313 {}
314 };
315
316 static struct nouveau_drm_prop_enum_list dither_mode[] = {
317 { 7, DITHERING_MODE_AUTO, "auto" },
318 { 7, DITHERING_MODE_OFF, "off" },
319 { 1, DITHERING_MODE_ON, "on" },
320 { 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
321 { 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
322 { 4, DITHERING_MODE_TEMPORAL, "temporal" },
323 {}
324 };
325
326 static struct nouveau_drm_prop_enum_list dither_depth[] = {
327 { 6, DITHERING_DEPTH_AUTO, "auto" },
328 { 6, DITHERING_DEPTH_6BPC, "6 bpc" },
329 { 6, DITHERING_DEPTH_8BPC, "8 bpc" },
330 {}
331 };
332
333 #define PROP_ENUM(p,gen,n,list) do { \
334 struct nouveau_drm_prop_enum_list *l = (list); \
335 int c = 0; \
336 while (l->gen_mask) { \
337 if (l->gen_mask & (1 << (gen))) \
338 c++; \
339 l++; \
340 } \
341 if (c) { \
342 p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c); \
343 l = (list); \
344 while (p && l->gen_mask) { \
345 if (l->gen_mask & (1 << (gen))) { \
346 drm_property_add_enum(p, l->type, l->name); \
347 } \
348 l++; \
349 } \
350 } \
351 } while(0)
352
353 static void
nouveau_display_hpd_work(struct work_struct * work)354 nouveau_display_hpd_work(struct work_struct *work)
355 {
356 struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
357
358 pm_runtime_get_sync(drm->dev->dev);
359
360 drm_helper_hpd_irq_event(drm->dev);
361
362 pm_runtime_mark_last_busy(drm->dev->dev);
363 pm_runtime_put_sync(drm->dev->dev);
364 }
365
366 #ifdef CONFIG_ACPI
367
368 static int
nouveau_display_acpi_ntfy(struct notifier_block * nb,unsigned long val,void * data)369 nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
370 void *data)
371 {
372 struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
373 struct acpi_bus_event *info = data;
374 int ret;
375
376 if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
377 if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
378 ret = pm_runtime_get(drm->dev->dev);
379 if (ret == 1 || ret == -EACCES) {
380 /* If the GPU is already awake, or in a state
381 * where we can't wake it up, it can handle
382 * it's own hotplug events.
383 */
384 pm_runtime_put_autosuspend(drm->dev->dev);
385 } else if (ret == 0) {
386 /* This may be the only indication we receive
387 * of a connector hotplug on a runtime
388 * suspended GPU, schedule hpd_work to check.
389 */
390 NV_DEBUG(drm, "ACPI requested connector reprobe\n");
391 schedule_work(&drm->hpd_work);
392 pm_runtime_put_noidle(drm->dev->dev);
393 } else {
394 NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n",
395 ret);
396 }
397
398 /* acpi-video should not generate keypresses for this */
399 return NOTIFY_BAD;
400 }
401 }
402
403 return NOTIFY_DONE;
404 }
405 #endif
406
407 int
nouveau_display_init(struct drm_device * dev,bool resume,bool runtime)408 nouveau_display_init(struct drm_device *dev, bool resume, bool runtime)
409 {
410 struct nouveau_display *disp = nouveau_display(dev);
411 struct drm_connector *connector;
412 struct drm_connector_list_iter conn_iter;
413 int ret;
414
415 /*
416 * Enable hotplug interrupts (done as early as possible, since we need
417 * them for MST)
418 */
419 drm_connector_list_iter_begin(dev, &conn_iter);
420 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
421 struct nouveau_connector *conn = nouveau_connector(connector);
422 nvif_notify_get(&conn->hpd);
423 }
424 drm_connector_list_iter_end(&conn_iter);
425
426 ret = disp->init(dev, resume, runtime);
427 if (ret)
428 return ret;
429
430 /* enable connector detection and polling for connectors without HPD
431 * support
432 */
433 drm_kms_helper_poll_enable(dev);
434
435 return ret;
436 }
437
438 void
nouveau_display_fini(struct drm_device * dev,bool suspend,bool runtime)439 nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
440 {
441 struct nouveau_display *disp = nouveau_display(dev);
442 struct nouveau_drm *drm = nouveau_drm(dev);
443 struct drm_connector *connector;
444 struct drm_connector_list_iter conn_iter;
445
446 if (!suspend) {
447 if (drm_drv_uses_atomic_modeset(dev))
448 drm_atomic_helper_shutdown(dev);
449 else
450 drm_helper_force_disable_all(dev);
451 }
452
453 /* disable hotplug interrupts */
454 drm_connector_list_iter_begin(dev, &conn_iter);
455 nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
456 struct nouveau_connector *conn = nouveau_connector(connector);
457 nvif_notify_put(&conn->hpd);
458 }
459 drm_connector_list_iter_end(&conn_iter);
460
461 if (!runtime)
462 cancel_work_sync(&drm->hpd_work);
463
464 drm_kms_helper_poll_disable(dev);
465 disp->fini(dev, suspend);
466 }
467
468 static void
nouveau_display_create_properties(struct drm_device * dev)469 nouveau_display_create_properties(struct drm_device *dev)
470 {
471 struct nouveau_display *disp = nouveau_display(dev);
472 int gen;
473
474 if (disp->disp.object.oclass < NV50_DISP)
475 gen = 0;
476 else
477 if (disp->disp.object.oclass < GF110_DISP)
478 gen = 1;
479 else
480 gen = 2;
481
482 PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
483 PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
484 PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
485
486 disp->underscan_hborder_property =
487 drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
488
489 disp->underscan_vborder_property =
490 drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
491
492 if (gen < 1)
493 return;
494
495 /* -90..+90 */
496 disp->vibrant_hue_property =
497 drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
498
499 /* -100..+100 */
500 disp->color_vibrance_property =
501 drm_property_create_range(dev, 0, "color vibrance", 0, 200);
502 }
503
504 int
nouveau_display_create(struct drm_device * dev)505 nouveau_display_create(struct drm_device *dev)
506 {
507 struct nouveau_drm *drm = nouveau_drm(dev);
508 struct nvkm_device *device = nvxx_device(&drm->client.device);
509 struct nouveau_display *disp;
510 int ret;
511
512 disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
513 if (!disp)
514 return -ENOMEM;
515
516 drm_mode_config_init(dev);
517 drm_mode_create_scaling_mode_property(dev);
518 drm_mode_create_dvi_i_properties(dev);
519
520 dev->mode_config.funcs = &nouveau_mode_config_funcs;
521 dev->mode_config.fb_base = device->func->resource_addr(device, 1);
522
523 dev->mode_config.min_width = 0;
524 dev->mode_config.min_height = 0;
525 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
526 dev->mode_config.max_width = 2048;
527 dev->mode_config.max_height = 2048;
528 } else
529 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
530 dev->mode_config.max_width = 4096;
531 dev->mode_config.max_height = 4096;
532 } else
533 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
534 dev->mode_config.max_width = 8192;
535 dev->mode_config.max_height = 8192;
536 } else {
537 dev->mode_config.max_width = 16384;
538 dev->mode_config.max_height = 16384;
539 }
540
541 dev->mode_config.preferred_depth = 24;
542 dev->mode_config.prefer_shadow = 1;
543
544 if (drm->client.device.info.chipset < 0x11)
545 dev->mode_config.async_page_flip = false;
546 else
547 dev->mode_config.async_page_flip = true;
548
549 drm_kms_helper_poll_init(dev);
550 drm_kms_helper_poll_disable(dev);
551
552 if (nouveau_modeset != 2 && drm->vbios.dcb.entries) {
553 ret = nvif_disp_ctor(&drm->client.device, 0, &disp->disp);
554 if (ret == 0) {
555 nouveau_display_create_properties(dev);
556 if (disp->disp.object.oclass < NV50_DISP)
557 ret = nv04_display_create(dev);
558 else
559 ret = nv50_display_create(dev);
560 }
561 } else {
562 ret = 0;
563 }
564
565 if (ret)
566 goto disp_create_err;
567
568 drm_mode_config_reset(dev);
569
570 if (dev->mode_config.num_crtc) {
571 ret = nouveau_display_vblank_init(dev);
572 if (ret)
573 goto vblank_err;
574 }
575
576 INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
577 #ifdef CONFIG_ACPI
578 drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
579 register_acpi_notifier(&drm->acpi_nb);
580 #endif
581
582 return 0;
583
584 vblank_err:
585 disp->dtor(dev);
586 disp_create_err:
587 drm_kms_helper_poll_fini(dev);
588 drm_mode_config_cleanup(dev);
589 return ret;
590 }
591
592 void
nouveau_display_destroy(struct drm_device * dev)593 nouveau_display_destroy(struct drm_device *dev)
594 {
595 struct nouveau_display *disp = nouveau_display(dev);
596
597 #ifdef CONFIG_ACPI
598 unregister_acpi_notifier(&nouveau_drm(dev)->acpi_nb);
599 #endif
600 nouveau_display_vblank_fini(dev);
601
602 drm_kms_helper_poll_fini(dev);
603 drm_mode_config_cleanup(dev);
604
605 if (disp->dtor)
606 disp->dtor(dev);
607
608 nvif_disp_dtor(&disp->disp);
609
610 nouveau_drm(dev)->display = NULL;
611 kfree(disp);
612 }
613
614 int
nouveau_display_suspend(struct drm_device * dev,bool runtime)615 nouveau_display_suspend(struct drm_device *dev, bool runtime)
616 {
617 struct nouveau_display *disp = nouveau_display(dev);
618
619 if (drm_drv_uses_atomic_modeset(dev)) {
620 if (!runtime) {
621 disp->suspend = drm_atomic_helper_suspend(dev);
622 if (IS_ERR(disp->suspend)) {
623 int ret = PTR_ERR(disp->suspend);
624 disp->suspend = NULL;
625 return ret;
626 }
627 }
628 }
629
630 nouveau_display_fini(dev, true, runtime);
631 return 0;
632 }
633
634 void
nouveau_display_resume(struct drm_device * dev,bool runtime)635 nouveau_display_resume(struct drm_device *dev, bool runtime)
636 {
637 struct nouveau_display *disp = nouveau_display(dev);
638
639 nouveau_display_init(dev, true, runtime);
640
641 if (drm_drv_uses_atomic_modeset(dev)) {
642 if (disp->suspend) {
643 drm_atomic_helper_resume(dev, disp->suspend);
644 disp->suspend = NULL;
645 }
646 return;
647 }
648 }
649
650 int
nouveau_display_dumb_create(struct drm_file * file_priv,struct drm_device * dev,struct drm_mode_create_dumb * args)651 nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
652 struct drm_mode_create_dumb *args)
653 {
654 struct nouveau_cli *cli = nouveau_cli(file_priv);
655 struct nouveau_bo *bo;
656 uint32_t domain;
657 int ret;
658
659 args->pitch = roundup(args->width * (args->bpp / 8), 256);
660 args->size = args->pitch * args->height;
661 args->size = roundup(args->size, PAGE_SIZE);
662
663 /* Use VRAM if there is any ; otherwise fallback to system memory */
664 if (nouveau_drm(dev)->client.device.info.ram_size != 0)
665 domain = NOUVEAU_GEM_DOMAIN_VRAM;
666 else
667 domain = NOUVEAU_GEM_DOMAIN_GART;
668
669 ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
670 if (ret)
671 return ret;
672
673 ret = drm_gem_handle_create(file_priv, &bo->bo.base, &args->handle);
674 drm_gem_object_put_unlocked(&bo->bo.base);
675 return ret;
676 }
677
678 int
nouveau_display_dumb_map_offset(struct drm_file * file_priv,struct drm_device * dev,uint32_t handle,uint64_t * poffset)679 nouveau_display_dumb_map_offset(struct drm_file *file_priv,
680 struct drm_device *dev,
681 uint32_t handle, uint64_t *poffset)
682 {
683 struct drm_gem_object *gem;
684
685 gem = drm_gem_object_lookup(file_priv, handle);
686 if (gem) {
687 struct nouveau_bo *bo = nouveau_gem_object(gem);
688 *poffset = drm_vma_node_offset_addr(&bo->bo.base.vma_node);
689 drm_gem_object_put_unlocked(gem);
690 return 0;
691 }
692
693 return -ENOENT;
694 }
695