nouveau_display.c

  1/*
  2 * Copyright (C) 2008 Maarten Maathuis.
  3 * All Rights Reserved.
  4 *
  5 * Permission is hereby granted, free of charge, to any person obtaining
  6 * a copy of this software and associated documentation files (the
  7 * "Software"), to deal in the Software without restriction, including
  8 * without limitation the rights to use, copy, modify, merge, publish,
  9 * distribute, sublicense, and/or sell copies of the Software, and to
 10 * permit persons to whom the Software is furnished to do so, subject to
 11 * the following conditions:
 12 *
 13 * The above copyright notice and this permission notice (including the
 14 * next paragraph) shall be included in all copies or substantial
 15 * portions of the Software.
 16 *
 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
 21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 24 *
 25 */
 26
 27#include <acpi/video.h>
 28
 29#include <drm/drm_atomic.h>
 30#include <drm/drm_atomic_helper.h>
 31#include <drm/drm_client_event.h>
 32#include <drm/drm_crtc_helper.h>
 33#include <drm/drm_dumb_buffers.h>
 34#include <drm/drm_fourcc.h>
 35#include <drm/drm_gem_framebuffer_helper.h>
 36#include <drm/drm_probe_helper.h>
 37#include <drm/drm_vblank.h>
 38
 39#include "nouveau_crtc.h"
 40#include "nouveau_gem.h"
 41#include "nouveau_connector.h"
 42#include "nv50_display.h"
 43
 44#include <nvif/class.h>
 45#include <nvif/if0011.h>
 46#include <nvif/if0013.h>
 47#include <dispnv50/crc.h>
 48#include <dispnv50/tile.h>
 49
 50int
 51nouveau_display_vblank_enable(struct drm_crtc *crtc)
 52{
 53	struct nouveau_crtc *nv_crtc;
 54
 55	nv_crtc = nouveau_crtc(crtc);
 56	nvif_event_allow(&nv_crtc->vblank);
 57
 58	return 0;
 59}
 60
 61void
 62nouveau_display_vblank_disable(struct drm_crtc *crtc)
 63{
 64	struct nouveau_crtc *nv_crtc;
 65
 66	nv_crtc = nouveau_crtc(crtc);
 67	nvif_event_block(&nv_crtc->vblank);
 68}
 69
 70static inline int
 71calc(int blanks, int blanke, int total, int line)
 72{
 73	if (blanke >= blanks) {
 74		if (line >= blanks)
 75			line -= total;
 76	} else {
 77		if (line >= blanks)
 78			line -= total;
 79		line -= blanke + 1;
 80	}
 81	return line;
 82}
 83
 84static bool
 85nouveau_display_scanoutpos_head(struct drm_crtc *crtc, int *vpos, int *hpos,
 86				ktime_t *stime, ktime_t *etime)
 87{
 88	struct drm_vblank_crtc *vblank = drm_crtc_vblank_crtc(crtc);
 89	struct nvif_head *head = &nouveau_crtc(crtc)->head;
 90	struct nvif_head_scanoutpos_v0 args;
 91	int retry = 20;
 92	bool ret = false;
 93
 94	args.version = 0;
 95
 96	do {
 97		ret = nvif_mthd(&head->object, NVIF_HEAD_V0_SCANOUTPOS, &args, sizeof(args));
 98		if (ret != 0)
 99			return false;
100
101		if (args.vline) {
102			ret = true;
103			break;
104		}
105
106		if (retry) ndelay(vblank->linedur_ns);
107	} while (retry--);
108
109	*hpos = args.hline;
110	*vpos = calc(args.vblanks, args.vblanke, args.vtotal, args.vline);
111	if (stime) *stime = ns_to_ktime(args.time[0]);
112	if (etime) *etime = ns_to_ktime(args.time[1]);
113
114	return ret;
115}
116
117bool
118nouveau_display_scanoutpos(struct drm_crtc *crtc,
119			   bool in_vblank_irq, int *vpos, int *hpos,
120			   ktime_t *stime, ktime_t *etime,
121			   const struct drm_display_mode *mode)
122{
123	return nouveau_display_scanoutpos_head(crtc, vpos, hpos,
124					       stime, etime);
125}
126
127static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
128	.destroy = drm_gem_fb_destroy,
129	.create_handle = drm_gem_fb_create_handle,
130};
131
132static void
133nouveau_decode_mod(struct nouveau_drm *drm,
134		   uint64_t modifier,
135		   uint32_t *tile_mode,
136		   uint8_t *kind)
137{
138	struct nouveau_display *disp = nouveau_display(drm->dev);
139	BUG_ON(!tile_mode || !kind);
140
141	if (modifier == DRM_FORMAT_MOD_LINEAR) {
142		/* tile_mode will not be used in this case */
143		*tile_mode = 0;
144		*kind = 0;
145	} else {
146		/*
147		 * Extract the block height and kind from the corresponding
148		 * modifier fields.  See drm_fourcc.h for details.
149		 */
150
151		if ((modifier & (0xffull << 12)) == 0ull) {
152			/* Legacy modifier.  Translate to this dev's 'kind.' */
153			modifier |= disp->format_modifiers[0] & (0xffull << 12);
154		}
155
156		*tile_mode = (uint32_t)(modifier & 0xF);
157		*kind = (uint8_t)((modifier >> 12) & 0xFF);
158
159		if (drm->client.device.info.chipset >= 0xc0)
160			*tile_mode <<= 4;
161	}
162}
163
164void
165nouveau_framebuffer_get_layout(struct drm_framebuffer *fb,
166			       uint32_t *tile_mode,
167			       uint8_t *kind)
168{
169	if (fb->flags & DRM_MODE_FB_MODIFIERS) {
170		struct nouveau_drm *drm = nouveau_drm(fb->dev);
171
172		nouveau_decode_mod(drm, fb->modifier, tile_mode, kind);
173	} else {
174		const struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
175
176		*tile_mode = nvbo->mode;
177		*kind = nvbo->kind;
178	}
179}
180
181static const u64 legacy_modifiers[] = {
182	DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(0),
183	DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(1),
184	DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(2),
185	DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(3),
186	DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(4),
187	DRM_FORMAT_MOD_NVIDIA_16BX2_BLOCK(5),
188	DRM_FORMAT_MOD_INVALID
189};
190
191static int
192nouveau_validate_decode_mod(struct nouveau_drm *drm,
193			    uint64_t modifier,
194			    uint32_t *tile_mode,
195			    uint8_t *kind)
196{
197	struct nouveau_display *disp = nouveau_display(drm->dev);
198	int mod;
199
200	if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
201		return -EINVAL;
202	}
203
204	BUG_ON(!disp->format_modifiers);
205
206	for (mod = 0;
207	     (disp->format_modifiers[mod] != DRM_FORMAT_MOD_INVALID) &&
208	     (disp->format_modifiers[mod] != modifier);
209	     mod++);
210
211	if (disp->format_modifiers[mod] == DRM_FORMAT_MOD_INVALID) {
212		for (mod = 0;
213		     (legacy_modifiers[mod] != DRM_FORMAT_MOD_INVALID) &&
214		     (legacy_modifiers[mod] != modifier);
215		     mod++);
216		if (legacy_modifiers[mod] == DRM_FORMAT_MOD_INVALID)
217			return -EINVAL;
218	}
219
220	nouveau_decode_mod(drm, modifier, tile_mode, kind);
221
222	return 0;
223}
224
225static int
226nouveau_check_bl_size(struct nouveau_drm *drm, struct nouveau_bo *nvbo,
227		      uint32_t offset, uint32_t stride, uint32_t h,
228		      uint32_t tile_mode)
229{
230	uint32_t gob_size, bw, bh, gobs_in_block;
231	uint64_t bl_size;
232
233	BUG_ON(drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA);
234
235	if (nouveau_check_tile_mode(tile_mode, drm->client.device.info.chipset))
236		return -EINVAL;
237
238	gobs_in_block = nouveau_get_gobs_in_block(tile_mode, drm->client.device.info.chipset);
239	bw = nouveau_get_width_in_blocks(stride);
240	bh = nouveau_get_height_in_blocks(h, gobs_in_block, drm->client.device.info.family);
241	gob_size = nouveau_get_gob_size(drm->client.device.info.family);
242
243	bl_size = bw * bh * gobs_in_block * gob_size;
244
245	DRM_DEBUG_KMS("offset=%u stride=%u h=%u gobs_in_block=%u bw=%u bh=%u gob_size=%u bl_size=%llu size=%zu\n",
246		      offset, stride, h, gobs_in_block, bw, bh, gob_size,
247		      bl_size, nvbo->bo.base.size);
248
249	if (bl_size + offset > nvbo->bo.base.size)
250		return -ERANGE;
251
252	return 0;
253}
254
255int
256nouveau_framebuffer_new(struct drm_device *dev,
257			const struct drm_format_info *info,
258			const struct drm_mode_fb_cmd2 *mode_cmd,
259			struct drm_gem_object *gem,
260			struct drm_framebuffer **pfb)
261{
262	struct nouveau_drm *drm = nouveau_drm(dev);
263	struct nouveau_bo *nvbo = nouveau_gem_object(gem);
264	struct drm_framebuffer *fb;
265	unsigned int height, i;
266	uint32_t tile_mode;
267	uint8_t kind;
268	int ret;
269
270        /* YUV overlays have special requirements pre-NV50 */
271	if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA &&
272
273	    (mode_cmd->pixel_format == DRM_FORMAT_YUYV ||
274	     mode_cmd->pixel_format == DRM_FORMAT_UYVY ||
275	     mode_cmd->pixel_format == DRM_FORMAT_NV12 ||
276	     mode_cmd->pixel_format == DRM_FORMAT_NV21) &&
277	    (mode_cmd->pitches[0] & 0x3f || /* align 64 */
278	     mode_cmd->pitches[0] >= 0x10000 || /* at most 64k pitch */
279	     (mode_cmd->pitches[1] && /* pitches for planes must match */
280	      mode_cmd->pitches[0] != mode_cmd->pitches[1]))) {
281		DRM_DEBUG_KMS("Unsuitable framebuffer: format: %p4cc; pitches: 0x%x\n 0x%x\n",
282			      &mode_cmd->pixel_format,
283			      mode_cmd->pitches[0], mode_cmd->pitches[1]);
284		return -EINVAL;
285	}
286
287	if (mode_cmd->flags & DRM_MODE_FB_MODIFIERS) {
288		if (nouveau_validate_decode_mod(drm, mode_cmd->modifier[0],
289						&tile_mode, &kind)) {
290			DRM_DEBUG_KMS("Unsupported modifier: 0x%llx\n",
291				      mode_cmd->modifier[0]);
292			return -EINVAL;
293		}
294	} else {
295		tile_mode = nvbo->mode;
296		kind = nvbo->kind;
297	}
298
299	for (i = 0; i < info->num_planes; i++) {
300		height = drm_format_info_plane_height(info,
301						      mode_cmd->height,
302						      i);
303
304		if (kind) {
305			ret = nouveau_check_bl_size(drm, nvbo,
306						    mode_cmd->offsets[i],
307						    mode_cmd->pitches[i],
308						    height, tile_mode);
309			if (ret)
310				return ret;
311		} else {
312			uint32_t size = mode_cmd->pitches[i] * height;
313
314			if (size + mode_cmd->offsets[i] > nvbo->bo.base.size)
315				return -ERANGE;
316		}
317	}
318
319	if (!(fb = *pfb = kzalloc(sizeof(*fb), GFP_KERNEL)))
320		return -ENOMEM;
321
322	drm_helper_mode_fill_fb_struct(dev, fb, info, mode_cmd);
323	fb->obj[0] = gem;
324
325	ret = drm_framebuffer_init(dev, fb, &nouveau_framebuffer_funcs);
326	if (ret)
327		kfree(fb);
328	return ret;
329}
330
331struct drm_framebuffer *
332nouveau_user_framebuffer_create(struct drm_device *dev,
333				struct drm_file *file_priv,
334				const struct drm_format_info *info,
335				const struct drm_mode_fb_cmd2 *mode_cmd)
336{
337	struct drm_framebuffer *fb;
338	struct drm_gem_object *gem;
339	int ret;
340
341	gem = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
342	if (!gem)
343		return ERR_PTR(-ENOENT);
344
345	ret = nouveau_framebuffer_new(dev, info, mode_cmd, gem, &fb);
346	if (ret == 0)
347		return fb;
348
349	drm_gem_object_put(gem);
350	return ERR_PTR(ret);
351}
352
353static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
354	.fb_create = nouveau_user_framebuffer_create,
355};
356
357
358struct nouveau_drm_prop_enum_list {
359	u8 gen_mask;
360	int type;
361	char *name;
362};
363
364static struct nouveau_drm_prop_enum_list underscan[] = {
365	{ 6, UNDERSCAN_AUTO, "auto" },
366	{ 6, UNDERSCAN_OFF, "off" },
367	{ 6, UNDERSCAN_ON, "on" },
368	{}
369};
370
371static struct nouveau_drm_prop_enum_list dither_mode[] = {
372	{ 7, DITHERING_MODE_AUTO, "auto" },
373	{ 7, DITHERING_MODE_OFF, "off" },
374	{ 1, DITHERING_MODE_ON, "on" },
375	{ 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
376	{ 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
377	{ 4, DITHERING_MODE_TEMPORAL, "temporal" },
378	{}
379};
380
381static struct nouveau_drm_prop_enum_list dither_depth[] = {
382	{ 6, DITHERING_DEPTH_AUTO, "auto" },
383	{ 6, DITHERING_DEPTH_6BPC, "6 bpc" },
384	{ 6, DITHERING_DEPTH_8BPC, "8 bpc" },
385	{}
386};
387
388#define PROP_ENUM(p,gen,n,list) do {                                           \
389	struct nouveau_drm_prop_enum_list *l = (list);                         \
390	int c = 0;                                                             \
391	while (l->gen_mask) {                                                  \
392		if (l->gen_mask & (1 << (gen)))                                \
393			c++;                                                   \
394		l++;                                                           \
395	}                                                                      \
396	if (c) {                                                               \
397		p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
398		l = (list);                                                    \
399		while (p && l->gen_mask) {                                     \
400			if (l->gen_mask & (1 << (gen))) {                      \
401				drm_property_add_enum(p, l->type, l->name);    \
402			}                                                      \
403			l++;                                                   \
404		}                                                              \
405	}                                                                      \
406} while(0)
407
408void
409nouveau_display_hpd_resume(struct nouveau_drm *drm)
410{
411	if (drm->headless)
412		return;
413
414	spin_lock_irq(&drm->hpd_lock);
415	drm->hpd_pending = ~0;
416	spin_unlock_irq(&drm->hpd_lock);
417
418	schedule_work(&drm->hpd_work);
419}
420
421static void
422nouveau_display_hpd_work(struct work_struct *work)
423{
424	struct nouveau_drm *drm = container_of(work, typeof(*drm), hpd_work);
425	struct drm_device *dev = drm->dev;
426	struct drm_connector *connector;
427	struct drm_connector_list_iter conn_iter;
428	u32 pending;
429	int changed = 0;
430	struct drm_connector *first_changed_connector = NULL;
431
432	pm_runtime_get_sync(dev->dev);
433
434	spin_lock_irq(&drm->hpd_lock);
435	pending = drm->hpd_pending;
436	drm->hpd_pending = 0;
437	spin_unlock_irq(&drm->hpd_lock);
438
439	/* Nothing to do, exit early without updating the last busy counter */
440	if (!pending)
441		goto noop;
442
443	mutex_lock(&dev->mode_config.mutex);
444	drm_connector_list_iter_begin(dev, &conn_iter);
445
446	nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
447		struct nouveau_connector *nv_connector = nouveau_connector(connector);
448		enum drm_connector_status old_status = connector->status;
449		u64 bits, old_epoch_counter = connector->epoch_counter;
450
451		if (!(pending & drm_connector_mask(connector)))
452			continue;
453
454		spin_lock_irq(&drm->hpd_lock);
455		bits = nv_connector->hpd_pending;
456		nv_connector->hpd_pending = 0;
457		spin_unlock_irq(&drm->hpd_lock);
458
459		drm_dbg_kms(dev, "[CONNECTOR:%d:%s] plug:%d unplug:%d irq:%d\n",
460			    connector->base.id, connector->name,
461			    !!(bits & NVIF_CONN_EVENT_V0_PLUG),
462			    !!(bits & NVIF_CONN_EVENT_V0_UNPLUG),
463			    !!(bits & NVIF_CONN_EVENT_V0_IRQ));
464
465		if (bits & NVIF_CONN_EVENT_V0_IRQ) {
466			if (nouveau_dp_link_check(nv_connector))
467				continue;
468		}
469
470		connector->status = drm_helper_probe_detect(connector, NULL, false);
471		if (old_epoch_counter == connector->epoch_counter)
472			continue;
473
474		changed++;
475		if (!first_changed_connector) {
476			drm_connector_get(connector);
477			first_changed_connector = connector;
478		}
479
480		drm_dbg_kms(dev, "[CONNECTOR:%d:%s] status updated from %s to %s (epoch counter %llu->%llu)\n",
481			    connector->base.id, connector->name,
482			    drm_get_connector_status_name(old_status),
483			    drm_get_connector_status_name(connector->status),
484			    old_epoch_counter, connector->epoch_counter);
485	}
486
487	drm_connector_list_iter_end(&conn_iter);
488	mutex_unlock(&dev->mode_config.mutex);
489
490	if (changed == 1)
491		drm_kms_helper_connector_hotplug_event(first_changed_connector);
492	else if (changed > 0)
493		drm_kms_helper_hotplug_event(dev);
494
495	if (first_changed_connector)
496		drm_connector_put(first_changed_connector);
497
498	pm_runtime_mark_last_busy(dev->dev);
499noop:
500	pm_runtime_put_autosuspend(dev->dev);
501}
502
503#ifdef CONFIG_ACPI
504
505static int
506nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
507			  void *data)
508{
509	struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
510	struct acpi_bus_event *info = data;
511	int ret;
512
513	if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
514		if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
515			ret = pm_runtime_get(drm->dev->dev);
516			if (ret == 1 || ret == -EACCES) {
517				/* If the GPU is already awake, or in a state
518				 * where we can't wake it up, it can handle
519				 * it's own hotplug events.
520				 */
521				pm_runtime_put_autosuspend(drm->dev->dev);
522			} else if (ret == 0 || ret == -EINPROGRESS) {
523				/* We've started resuming the GPU already, so
524				 * it will handle scheduling a full reprobe
525				 * itself
526				 */
527				NV_DEBUG(drm, "ACPI requested connector reprobe\n");
528				pm_runtime_put_noidle(drm->dev->dev);
529			} else {
530				NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n",
531					ret);
532			}
533
534			/* acpi-video should not generate keypresses for this */
535			return NOTIFY_BAD;
536		}
537	}
538
539	return NOTIFY_DONE;
540}
541#endif
542
543int
544nouveau_display_init(struct drm_device *dev, bool resume, bool runtime)
545{
546	struct nouveau_display *disp = nouveau_display(dev);
547	struct drm_connector *connector;
548	struct drm_connector_list_iter conn_iter;
549	int ret;
550
551	/*
552	 * Enable hotplug interrupts (done as early as possible, since we need
553	 * them for MST)
554	 */
555	drm_connector_list_iter_begin(dev, &conn_iter);
556	nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
557		struct nouveau_connector *conn = nouveau_connector(connector);
558		nvif_event_allow(&conn->hpd);
559		nvif_event_allow(&conn->irq);
560	}
561	drm_connector_list_iter_end(&conn_iter);
562
563	ret = disp->init(dev, resume, runtime);
564	if (ret)
565		return ret;
566
567	/* enable connector detection and polling for connectors without HPD
568	 * support
569	 */
570	drm_kms_helper_poll_enable(dev);
571
572	return ret;
573}
574
575void
576nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
577{
578	struct nouveau_display *disp = nouveau_display(dev);
579	struct nouveau_drm *drm = nouveau_drm(dev);
580	struct drm_connector *connector;
581	struct drm_connector_list_iter conn_iter;
582
583	if (!suspend) {
584		if (drm_drv_uses_atomic_modeset(dev))
585			drm_atomic_helper_shutdown(dev);
586		else
587			drm_helper_force_disable_all(dev);
588	}
589
590	/* disable hotplug interrupts */
591	drm_connector_list_iter_begin(dev, &conn_iter);
592	nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
593		struct nouveau_connector *conn = nouveau_connector(connector);
594		nvif_event_block(&conn->irq);
595		nvif_event_block(&conn->hpd);
596	}
597	drm_connector_list_iter_end(&conn_iter);
598
599	if (!runtime && !drm->headless)
600		cancel_work_sync(&drm->hpd_work);
601
602	drm_kms_helper_poll_disable(dev);
603	disp->fini(dev, runtime, suspend);
604}
605
606static void
607nouveau_display_create_properties(struct drm_device *dev)
608{
609	struct nouveau_display *disp = nouveau_display(dev);
610	int gen;
611
612	if (disp->disp.object.oclass < NV50_DISP)
613		gen = 0;
614	else
615	if (disp->disp.object.oclass < GF110_DISP)
616		gen = 1;
617	else
618		gen = 2;
619
620	PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
621	PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
622	PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
623
624	disp->underscan_hborder_property =
625		drm_property_create_range(dev, 0, "underscan hborder", 0, 128);
626
627	disp->underscan_vborder_property =
628		drm_property_create_range(dev, 0, "underscan vborder", 0, 128);
629
630	if (gen < 1)
631		return;
632
633	/* -90..+90 */
634	disp->vibrant_hue_property =
635		drm_property_create_range(dev, 0, "vibrant hue", 0, 180);
636
637	/* -100..+100 */
638	disp->color_vibrance_property =
639		drm_property_create_range(dev, 0, "color vibrance", 0, 200);
640}
641
642int
643nouveau_display_create(struct drm_device *dev)
644{
645	struct nouveau_drm *drm = nouveau_drm(dev);
646	struct nouveau_display *disp;
647	int ret;
648
649	disp = drm->display = kzalloc(sizeof(*disp), GFP_KERNEL);
650	if (!disp)
651		return -ENOMEM;
652
653	drm_mode_config_init(dev);
654	drm_mode_create_scaling_mode_property(dev);
655	drm_mode_create_dvi_i_properties(dev);
656
657	dev->mode_config.funcs = &nouveau_mode_config_funcs;
658
659	dev->mode_config.min_width = 0;
660	dev->mode_config.min_height = 0;
661	if (drm->client.device.info.family < NV_DEVICE_INFO_V0_CELSIUS) {
662		dev->mode_config.max_width = 2048;
663		dev->mode_config.max_height = 2048;
664	} else
665	if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
666		dev->mode_config.max_width = 4096;
667		dev->mode_config.max_height = 4096;
668	} else
669	if (drm->client.device.info.family < NV_DEVICE_INFO_V0_FERMI) {
670		dev->mode_config.max_width = 8192;
671		dev->mode_config.max_height = 8192;
672	} else {
673		dev->mode_config.max_width = 16384;
674		dev->mode_config.max_height = 16384;
675	}
676
677	dev->mode_config.preferred_depth = 24;
678	dev->mode_config.prefer_shadow = 1;
679
680	if (drm->client.device.info.chipset < 0x11)
681		dev->mode_config.async_page_flip = false;
682	else
683		dev->mode_config.async_page_flip = true;
684
685	drm_kms_helper_poll_init(dev);
686	drm_kms_helper_poll_disable(dev);
687
688	if (nouveau_modeset != 2) {
689		ret = nvif_disp_ctor(&drm->client.device, "kmsDisp", 0, &disp->disp);
690		/* no display hw */
691		if (ret == -ENODEV) {
692			ret = 0;
693			drm->headless = true;
694			goto disp_create_err;
695		}
696
697		if (!ret && (disp->disp.outp_mask || drm->vbios.dcb.entries)) {
698			nouveau_display_create_properties(dev);
699			if (disp->disp.object.oclass < NV50_DISP) {
700				dev->mode_config.fb_modifiers_not_supported = true;
701				ret = nv04_display_create(dev);
702			} else {
703				ret = nv50_display_create(dev);
704			}
705		}
706	} else {
707		ret = 0;
708	}
709
710	if (ret)
711		goto disp_create_err;
712
713	drm_mode_config_reset(dev);
714
715	if (dev->mode_config.num_crtc) {
716		ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
717		if (ret)
718			goto vblank_err;
719
720		if (disp->disp.object.oclass >= NV50_DISP)
721			nv50_crc_init(dev);
722	}
723
724	INIT_WORK(&drm->hpd_work, nouveau_display_hpd_work);
725	spin_lock_init(&drm->hpd_lock);
726#ifdef CONFIG_ACPI
727	drm->acpi_nb.notifier_call = nouveau_display_acpi_ntfy;
728	register_acpi_notifier(&drm->acpi_nb);
729#endif
730
731	return 0;
732
733vblank_err:
734	disp->dtor(dev);
735disp_create_err:
736	drm_kms_helper_poll_fini(dev);
737	drm_mode_config_cleanup(dev);
738	return ret;
739}
740
741void
742nouveau_display_destroy(struct drm_device *dev)
743{
744	struct nouveau_display *disp = nouveau_display(dev);
745	struct nouveau_drm *drm = nouveau_drm(dev);
746
747#ifdef CONFIG_ACPI
748	unregister_acpi_notifier(&drm->acpi_nb);
749#endif
750
751	drm_kms_helper_poll_fini(dev);
752	drm_mode_config_cleanup(dev);
753
754	if (disp->dtor)
755		disp->dtor(dev);
756
757	nvif_disp_dtor(&disp->disp);
758
759	drm->display = NULL;
760	kfree(disp);
761}
762
763int
764nouveau_display_suspend(struct drm_device *dev, bool runtime)
765{
766	struct nouveau_display *disp = nouveau_display(dev);
767
768	drm_client_dev_suspend(dev);
769
770	if (drm_drv_uses_atomic_modeset(dev)) {
771		if (!runtime) {
772			disp->suspend = drm_atomic_helper_suspend(dev);
773			if (IS_ERR(disp->suspend)) {
774				int ret = PTR_ERR(disp->suspend);
775				disp->suspend = NULL;
776				return ret;
777			}
778		}
779	}
780
781	nouveau_display_fini(dev, true, runtime);
782	return 0;
783}
784
785void
786nouveau_display_resume(struct drm_device *dev, bool runtime)
787{
788	struct nouveau_display *disp = nouveau_display(dev);
789
790	nouveau_display_init(dev, true, runtime);
791
792	if (drm_drv_uses_atomic_modeset(dev)) {
793		if (disp->suspend) {
794			drm_atomic_helper_resume(dev, disp->suspend);
795			disp->suspend = NULL;
796		}
797	}
798
799	drm_client_dev_resume(dev);
800}
801
802int
803nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
804			    struct drm_mode_create_dumb *args)
805{
806	struct nouveau_cli *cli = nouveau_cli(file_priv);
807	struct nouveau_bo *bo;
808	uint32_t domain;
809	int ret;
810
811	ret = drm_mode_size_dumb(dev, args, SZ_256, 0);
812	if (ret)
813		return ret;
814
815	/* Use VRAM if there is any ; otherwise fallback to system memory */
816	if (nouveau_drm(dev)->client.device.info.ram_size != 0)
817		domain = NOUVEAU_GEM_DOMAIN_VRAM;
818	else
819		domain = NOUVEAU_GEM_DOMAIN_GART;
820
821	ret = nouveau_gem_new(cli, args->size, 0, domain, 0, 0, &bo);
822	if (ret)
823		return ret;
824
825	ret = drm_gem_handle_create(file_priv, &bo->bo.base, &args->handle);
826	drm_gem_object_put(&bo->bo.base);
827	return ret;
828}