qxl_display.c revision fb85ac4da8d202f89e0635e4ac2ac680d662be98
1/*
2 * Copyright 2013 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Dave Airlie
23 *          Alon Levy
24 */
25
26
27#include "linux/crc32.h"
28
29#include "qxl_drv.h"
30#include "qxl_object.h"
31#include "drm_crtc_helper.h"
32
33static void qxl_crtc_set_to_mode(struct qxl_device *qdev,
34				 struct drm_connector *connector,
35				 struct qxl_head *head)
36{
37	struct drm_device *dev = connector->dev;
38	struct drm_display_mode *mode, *t;
39	int width = head->width;
40	int height = head->height;
41
42	if (width < 320 || height < 240) {
43		qxl_io_log(qdev, "%s: bad head: %dx%d", width, height);
44		width = 1024;
45		height = 768;
46	}
47	if (width * height * 4 > 16*1024*1024) {
48		width = 1024;
49		height = 768;
50	}
51	/* TODO: go over regular modes and removed preferred? */
52	list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
53		drm_mode_remove(connector, mode);
54	mode = drm_cvt_mode(dev, width, height, 60, false, false, false);
55	mode->type |= DRM_MODE_TYPE_PREFERRED;
56	mode->status = MODE_OK;
57	drm_mode_probed_add(connector, mode);
58	qxl_io_log(qdev, "%s: %d x %d\n", __func__, width, height);
59}
60
61void qxl_crtc_set_from_monitors_config(struct qxl_device *qdev)
62{
63	struct drm_connector *connector;
64	int i;
65	struct drm_device *dev = qdev->ddev;
66
67	i = 0;
68	qxl_io_log(qdev, "%s: %d, %d\n", __func__,
69		   dev->mode_config.num_connector,
70		   qdev->monitors_config->count);
71	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
72		if (i > qdev->monitors_config->count) {
73			/* crtc will be reported as disabled */
74			continue;
75		}
76		qxl_crtc_set_to_mode(qdev, connector,
77				     &qdev->monitors_config->heads[i]);
78		++i;
79	}
80}
81
82void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count)
83{
84	if (qdev->client_monitors_config &&
85	    count > qdev->client_monitors_config->count) {
86		kfree(qdev->client_monitors_config);
87		qdev->client_monitors_config = NULL;
88	}
89	if (!qdev->client_monitors_config) {
90		qdev->client_monitors_config = kzalloc(
91				sizeof(struct qxl_monitors_config) +
92				sizeof(struct qxl_head) * count, GFP_KERNEL);
93		if (!qdev->client_monitors_config) {
94			qxl_io_log(qdev,
95				   "%s: allocation failure for %u heads\n",
96				   __func__, count);
97			return;
98		}
99	}
100	qdev->client_monitors_config->count = count;
101}
102
103static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
104{
105	int i;
106	int num_monitors;
107	uint32_t crc;
108
109	BUG_ON(!qdev->monitors_config);
110	num_monitors = qdev->rom->client_monitors_config.count;
111	crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
112		  sizeof(qdev->rom->client_monitors_config));
113	if (crc != qdev->rom->client_monitors_config_crc) {
114		qxl_io_log(qdev, "crc mismatch: have %X (%d) != %X\n", crc,
115			   sizeof(qdev->rom->client_monitors_config),
116			   qdev->rom->client_monitors_config_crc);
117		return 1;
118	}
119	if (num_monitors > qdev->monitors_config->max_allowed) {
120		DRM_INFO("client monitors list will be truncated: %d < %d\n",
121			 qdev->monitors_config->max_allowed, num_monitors);
122		num_monitors = qdev->monitors_config->max_allowed;
123	} else {
124		num_monitors = qdev->rom->client_monitors_config.count;
125	}
126	qxl_alloc_client_monitors_config(qdev, num_monitors);
127	/* we copy max from the client but it isn't used */
128	qdev->client_monitors_config->max_allowed =
129				qdev->monitors_config->max_allowed;
130	for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
131		struct qxl_urect *c_rect =
132			&qdev->rom->client_monitors_config.heads[i];
133		struct qxl_head *client_head =
134			&qdev->client_monitors_config->heads[i];
135		struct qxl_head *head = &qdev->monitors_config->heads[i];
136		client_head->x = head->x = c_rect->left;
137		client_head->y = head->y = c_rect->top;
138		client_head->width = head->width =
139						c_rect->right - c_rect->left;
140		client_head->height = head->height =
141						c_rect->bottom - c_rect->top;
142		client_head->surface_id = head->surface_id = 0;
143		client_head->id = head->id = i;
144		client_head->flags = head->flags = 0;
145		QXL_DEBUG(qdev, "read %dx%d+%d+%d\n", head->width, head->height,
146			  head->x, head->y);
147	}
148	return 0;
149}
150
151void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
152{
153
154	while (qxl_display_copy_rom_client_monitors_config(qdev)) {
155		qxl_io_log(qdev, "failed crc check for client_monitors_config,"
156				 " retrying\n");
157	}
158	qxl_crtc_set_from_monitors_config(qdev);
159	/* fire off a uevent and let userspace tell us what to do */
160	qxl_io_log(qdev, "calling drm_sysfs_hotplug_event\n");
161	drm_sysfs_hotplug_event(qdev->ddev);
162}
163
164static int qxl_add_monitors_config_modes(struct drm_connector *connector)
165{
166	struct drm_device *dev = connector->dev;
167	struct qxl_device *qdev = dev->dev_private;
168	struct qxl_output *output = drm_connector_to_qxl_output(connector);
169	int h = output->index;
170	struct drm_display_mode *mode = NULL;
171	struct qxl_head *head;
172
173	if (!qdev->monitors_config)
174		return 0;
175	head = &qdev->monitors_config->heads[h];
176
177	mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
178			    false);
179	mode->type |= DRM_MODE_TYPE_PREFERRED;
180	drm_mode_probed_add(connector, mode);
181	return 1;
182}
183
184static int qxl_add_common_modes(struct drm_connector *connector)
185{
186	struct drm_device *dev = connector->dev;
187	struct drm_display_mode *mode = NULL;
188	int i;
189	struct mode_size {
190		int w;
191		int h;
192	} common_modes[] = {
193		{ 640,  480},
194		{ 720,  480},
195		{ 800,  600},
196		{ 848,  480},
197		{1024,  768},
198		{1152,  768},
199		{1280,  720},
200		{1280,  800},
201		{1280,  854},
202		{1280,  960},
203		{1280, 1024},
204		{1440,  900},
205		{1400, 1050},
206		{1680, 1050},
207		{1600, 1200},
208		{1920, 1080},
209		{1920, 1200}
210	};
211
212	for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
213		if (common_modes[i].w < 320 || common_modes[i].h < 200)
214			continue;
215
216		mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
217				    60, false, false, false);
218		if (common_modes[i].w == 1024 && common_modes[i].h == 768)
219			mode->type |= DRM_MODE_TYPE_PREFERRED;
220		drm_mode_probed_add(connector, mode);
221	}
222	return i - 1;
223}
224
225static void qxl_crtc_destroy(struct drm_crtc *crtc)
226{
227	struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
228
229	drm_crtc_cleanup(crtc);
230	kfree(qxl_crtc);
231}
232
233static void
234qxl_hide_cursor(struct qxl_device *qdev)
235{
236	struct qxl_release *release;
237	struct qxl_cursor_cmd *cmd;
238	int ret;
239
240	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
241					 &release, NULL);
242
243	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
244	cmd->type = QXL_CURSOR_HIDE;
245	qxl_release_unmap(qdev, release, &cmd->release_info);
246
247	qxl_fence_releaseable(qdev, release);
248	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
249	qxl_release_unreserve(qdev, release);
250}
251
252static int qxl_crtc_cursor_set(struct drm_crtc *crtc,
253			       struct drm_file *file_priv,
254			       uint32_t handle,
255			       uint32_t width,
256			       uint32_t height)
257{
258	struct drm_device *dev = crtc->dev;
259	struct qxl_device *qdev = dev->dev_private;
260	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
261	struct drm_gem_object *obj;
262	struct qxl_cursor *cursor;
263	struct qxl_cursor_cmd *cmd;
264	struct qxl_bo *cursor_bo, *user_bo;
265	struct qxl_release *release;
266	void *user_ptr;
267
268	int size = 64*64*4;
269	int ret = 0;
270	if (!handle) {
271		qxl_hide_cursor(qdev);
272		return 0;
273	}
274
275	obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
276	if (!obj) {
277		DRM_ERROR("cannot find cursor object\n");
278		return -ENOENT;
279	}
280
281	user_bo = gem_to_qxl_bo(obj);
282
283	ret = qxl_bo_reserve(user_bo, false);
284	if (ret)
285		goto out_unref;
286
287	ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
288	if (ret)
289		goto out_unreserve;
290
291	ret = qxl_bo_kmap(user_bo, &user_ptr);
292	if (ret)
293		goto out_unpin;
294
295	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
296					 QXL_RELEASE_CURSOR_CMD,
297					 &release, NULL);
298	if (ret)
299		goto out_kunmap;
300	ret = qxl_alloc_bo_reserved(qdev, sizeof(struct qxl_cursor) + size,
301				    &cursor_bo);
302	if (ret)
303		goto out_free_release;
304	ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
305	if (ret)
306		goto out_free_bo;
307
308	cursor->header.unique = 0;
309	cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
310	cursor->header.width = 64;
311	cursor->header.height = 64;
312	cursor->header.hot_spot_x = 0;
313	cursor->header.hot_spot_y = 0;
314	cursor->data_size = size;
315	cursor->chunk.next_chunk = 0;
316	cursor->chunk.prev_chunk = 0;
317	cursor->chunk.data_size = size;
318
319	memcpy(cursor->chunk.data, user_ptr, size);
320
321	qxl_bo_kunmap(cursor_bo);
322
323	/* finish with the userspace bo */
324	qxl_bo_kunmap(user_bo);
325	qxl_bo_unpin(user_bo);
326	qxl_bo_unreserve(user_bo);
327	drm_gem_object_unreference_unlocked(obj);
328
329	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
330	cmd->type = QXL_CURSOR_SET;
331	cmd->u.set.position.x = qcrtc->cur_x;
332	cmd->u.set.position.y = qcrtc->cur_y;
333
334	cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
335	qxl_release_add_res(qdev, release, cursor_bo);
336
337	cmd->u.set.visible = 1;
338	qxl_release_unmap(qdev, release, &cmd->release_info);
339
340	qxl_fence_releaseable(qdev, release);
341	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
342	qxl_release_unreserve(qdev, release);
343
344	qxl_bo_unreserve(cursor_bo);
345	qxl_bo_unref(&cursor_bo);
346
347	return ret;
348out_free_bo:
349	qxl_bo_unref(&cursor_bo);
350out_free_release:
351	qxl_release_unreserve(qdev, release);
352	qxl_release_free(qdev, release);
353out_kunmap:
354	qxl_bo_kunmap(user_bo);
355out_unpin:
356	qxl_bo_unpin(user_bo);
357out_unreserve:
358	qxl_bo_unreserve(user_bo);
359out_unref:
360	drm_gem_object_unreference_unlocked(obj);
361	return ret;
362}
363
364static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
365				int x, int y)
366{
367	struct drm_device *dev = crtc->dev;
368	struct qxl_device *qdev = dev->dev_private;
369	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
370	struct qxl_release *release;
371	struct qxl_cursor_cmd *cmd;
372	int ret;
373
374	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
375				   &release, NULL);
376
377	qcrtc->cur_x = x;
378	qcrtc->cur_y = y;
379
380	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
381	cmd->type = QXL_CURSOR_MOVE;
382	cmd->u.position.x = qcrtc->cur_x;
383	cmd->u.position.y = qcrtc->cur_y;
384	qxl_release_unmap(qdev, release, &cmd->release_info);
385
386	qxl_fence_releaseable(qdev, release);
387	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
388	qxl_release_unreserve(qdev, release);
389	return 0;
390}
391
392
393static const struct drm_crtc_funcs qxl_crtc_funcs = {
394	.cursor_set = qxl_crtc_cursor_set,
395	.cursor_move = qxl_crtc_cursor_move,
396	.set_config = drm_crtc_helper_set_config,
397	.destroy = qxl_crtc_destroy,
398};
399
400static void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
401{
402	struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
403
404	if (qxl_fb->obj)
405		drm_gem_object_unreference_unlocked(qxl_fb->obj);
406	drm_framebuffer_cleanup(fb);
407	kfree(qxl_fb);
408}
409
410static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
411					 struct drm_file *file_priv,
412					 unsigned flags, unsigned color,
413					 struct drm_clip_rect *clips,
414					 unsigned num_clips)
415{
416	/* TODO: vmwgfx where this was cribbed from had locking. Why? */
417	struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
418	struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
419	struct drm_clip_rect norect;
420	struct qxl_bo *qobj;
421	int inc = 1;
422
423	qobj = gem_to_qxl_bo(qxl_fb->obj);
424	/* if we aren't primary surface ignore this */
425	if (!qobj->is_primary)
426		return 0;
427
428	if (!num_clips) {
429		num_clips = 1;
430		clips = &norect;
431		norect.x1 = norect.y1 = 0;
432		norect.x2 = fb->width;
433		norect.y2 = fb->height;
434	} else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
435		num_clips /= 2;
436		inc = 2; /* skip source rects */
437	}
438
439	qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
440			  clips, num_clips, inc);
441	return 0;
442}
443
444static const struct drm_framebuffer_funcs qxl_fb_funcs = {
445	.destroy = qxl_user_framebuffer_destroy,
446	.dirty = qxl_framebuffer_surface_dirty,
447/*	TODO?
448 *	.create_handle = qxl_user_framebuffer_create_handle, */
449};
450
451int
452qxl_framebuffer_init(struct drm_device *dev,
453		     struct qxl_framebuffer *qfb,
454		     struct drm_mode_fb_cmd2 *mode_cmd,
455		     struct drm_gem_object *obj)
456{
457	int ret;
458
459	qfb->obj = obj;
460	ret = drm_framebuffer_init(dev, &qfb->base, &qxl_fb_funcs);
461	if (ret) {
462		qfb->obj = NULL;
463		return ret;
464	}
465	drm_helper_mode_fill_fb_struct(&qfb->base, mode_cmd);
466	return 0;
467}
468
469static void qxl_crtc_dpms(struct drm_crtc *crtc, int mode)
470{
471}
472
473static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
474				  const struct drm_display_mode *mode,
475				  struct drm_display_mode *adjusted_mode)
476{
477	struct drm_device *dev = crtc->dev;
478	struct qxl_device *qdev = dev->dev_private;
479
480	qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
481		   __func__,
482		   mode->hdisplay, mode->vdisplay,
483		   adjusted_mode->hdisplay,
484		   adjusted_mode->vdisplay);
485	return true;
486}
487
488void
489qxl_send_monitors_config(struct qxl_device *qdev)
490{
491	int i;
492
493	BUG_ON(!qdev->ram_header->monitors_config);
494
495	if (qdev->monitors_config->count == 0) {
496		qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
497		return;
498	}
499	for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
500		struct qxl_head *head = &qdev->monitors_config->heads[i];
501
502		if (head->y > 8192 || head->y < head->x ||
503		    head->width > 8192 || head->height > 8192) {
504			DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
505				  i, head->width, head->height,
506				  head->x, head->y);
507			return;
508		}
509	}
510	qxl_io_monitors_config(qdev);
511}
512
513static void qxl_monitors_config_set_single(struct qxl_device *qdev,
514					   unsigned x, unsigned y,
515					   unsigned width, unsigned height)
516{
517	DRM_DEBUG("%dx%d+%d+%d\n", width, height, x, y);
518	qdev->monitors_config->count = 1;
519	qdev->monitors_config->heads[0].x = x;
520	qdev->monitors_config->heads[0].y = y;
521	qdev->monitors_config->heads[0].width = width;
522	qdev->monitors_config->heads[0].height = height;
523}
524
525static int qxl_crtc_mode_set(struct drm_crtc *crtc,
526			       struct drm_display_mode *mode,
527			       struct drm_display_mode *adjusted_mode,
528			       int x, int y,
529			       struct drm_framebuffer *old_fb)
530{
531	struct drm_device *dev = crtc->dev;
532	struct qxl_device *qdev = dev->dev_private;
533	struct qxl_mode *m = (void *)mode->private;
534	struct qxl_framebuffer *qfb;
535	struct qxl_bo *bo, *old_bo = NULL;
536	uint32_t width, height, base_offset;
537	bool recreate_primary = false;
538	int ret;
539
540	if (!crtc->fb) {
541		DRM_DEBUG_KMS("No FB bound\n");
542		return 0;
543	}
544
545	if (old_fb) {
546		qfb = to_qxl_framebuffer(old_fb);
547		old_bo = gem_to_qxl_bo(qfb->obj);
548	}
549	qfb = to_qxl_framebuffer(crtc->fb);
550	bo = gem_to_qxl_bo(qfb->obj);
551	if (!m)
552		/* and do we care? */
553		DRM_DEBUG("%dx%d: not a native mode\n", x, y);
554	else
555		DRM_DEBUG("%dx%d: qxl id %d\n",
556			  mode->hdisplay, mode->vdisplay, m->id);
557	DRM_DEBUG("+%d+%d (%d,%d) => (%d,%d)\n",
558		  x, y,
559		  mode->hdisplay, mode->vdisplay,
560		  adjusted_mode->hdisplay,
561		  adjusted_mode->vdisplay);
562
563	recreate_primary = true;
564
565	width = mode->hdisplay;
566	height = mode->vdisplay;
567	base_offset = 0;
568
569	ret = qxl_bo_reserve(bo, false);
570	if (ret != 0)
571		return ret;
572	ret = qxl_bo_pin(bo, bo->type, NULL);
573	if (ret != 0) {
574		qxl_bo_unreserve(bo);
575		return -EINVAL;
576	}
577	qxl_bo_unreserve(bo);
578	if (recreate_primary) {
579		qxl_io_destroy_primary(qdev);
580		qxl_io_log(qdev,
581			   "recreate primary: %dx%d (was %dx%d,%d,%d)\n",
582			   width, height, bo->surf.width,
583			   bo->surf.height, bo->surf.stride, bo->surf.format);
584		qxl_io_create_primary(qdev, width, height, base_offset, bo);
585		bo->is_primary = true;
586	}
587
588	if (old_bo && old_bo != bo) {
589		old_bo->is_primary = false;
590		ret = qxl_bo_reserve(old_bo, false);
591		qxl_bo_unpin(old_bo);
592		qxl_bo_unreserve(old_bo);
593	}
594
595	if (qdev->monitors_config->count == 0) {
596		qxl_monitors_config_set_single(qdev, x, y,
597					       mode->hdisplay,
598					       mode->vdisplay);
599	}
600	return 0;
601}
602
603static void qxl_crtc_prepare(struct drm_crtc *crtc)
604{
605	DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
606		  crtc->mode.hdisplay, crtc->mode.vdisplay,
607		  crtc->x, crtc->y, crtc->enabled);
608}
609
610static void qxl_crtc_commit(struct drm_crtc *crtc)
611{
612	DRM_DEBUG("\n");
613}
614
615static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
616	.dpms = qxl_crtc_dpms,
617	.mode_fixup = qxl_crtc_mode_fixup,
618	.mode_set = qxl_crtc_mode_set,
619	.prepare = qxl_crtc_prepare,
620	.commit = qxl_crtc_commit,
621};
622
623static int qdev_crtc_init(struct drm_device *dev, int num_crtc)
624{
625	struct qxl_crtc *qxl_crtc;
626
627	qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
628	if (!qxl_crtc)
629		return -ENOMEM;
630
631	drm_crtc_init(dev, &qxl_crtc->base, &qxl_crtc_funcs);
632
633	drm_mode_crtc_set_gamma_size(&qxl_crtc->base, 256);
634	drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
635	return 0;
636}
637
638static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
639{
640	DRM_DEBUG("\n");
641}
642
643static bool qxl_enc_mode_fixup(struct drm_encoder *encoder,
644			       const struct drm_display_mode *mode,
645			       struct drm_display_mode *adjusted_mode)
646{
647	DRM_DEBUG("\n");
648	return true;
649}
650
651static void qxl_enc_prepare(struct drm_encoder *encoder)
652{
653	DRM_DEBUG("\n");
654}
655
656static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
657		struct drm_encoder *encoder)
658{
659	int i;
660	struct qxl_head *head;
661	struct drm_display_mode *mode;
662
663	BUG_ON(!encoder);
664	/* TODO: ugly, do better */
665	for (i = 0 ; (encoder->possible_crtcs != (1 << i)) && i < 32; ++i)
666		;
667	if (encoder->possible_crtcs != (1 << i)) {
668		DRM_ERROR("encoder has wrong possible_crtcs: %x\n",
669			  encoder->possible_crtcs);
670		return;
671	}
672	if (!qdev->monitors_config ||
673	    qdev->monitors_config->max_allowed <= i) {
674		DRM_ERROR(
675		"head number too large or missing monitors config: %p, %d",
676		qdev->monitors_config,
677		qdev->monitors_config ?
678			qdev->monitors_config->max_allowed : -1);
679		return;
680	}
681	if (!encoder->crtc) {
682		DRM_ERROR("missing crtc on encoder %p\n", encoder);
683		return;
684	}
685	if (i != 0)
686		DRM_DEBUG("missing for multiple monitors: no head holes\n");
687	head = &qdev->monitors_config->heads[i];
688	head->id = i;
689	head->surface_id = 0;
690	if (encoder->crtc->enabled) {
691		mode = &encoder->crtc->mode;
692		head->width = mode->hdisplay;
693		head->height = mode->vdisplay;
694		head->x = encoder->crtc->x;
695		head->y = encoder->crtc->y;
696		if (qdev->monitors_config->count < i + 1)
697			qdev->monitors_config->count = i + 1;
698	} else {
699		head->width = 0;
700		head->height = 0;
701		head->x = 0;
702		head->y = 0;
703	}
704	DRM_DEBUG("setting head %d to +%d+%d %dx%d\n",
705		  i, head->x, head->y, head->width, head->height);
706	head->flags = 0;
707	/* TODO - somewhere else to call this for multiple monitors
708	 * (config_commit?) */
709	qxl_send_monitors_config(qdev);
710}
711
712static void qxl_enc_commit(struct drm_encoder *encoder)
713{
714	struct qxl_device *qdev = encoder->dev->dev_private;
715
716	qxl_write_monitors_config_for_encoder(qdev, encoder);
717	DRM_DEBUG("\n");
718}
719
720static void qxl_enc_mode_set(struct drm_encoder *encoder,
721				struct drm_display_mode *mode,
722				struct drm_display_mode *adjusted_mode)
723{
724	DRM_DEBUG("\n");
725}
726
727static int qxl_conn_get_modes(struct drm_connector *connector)
728{
729	int ret = 0;
730	struct qxl_device *qdev = connector->dev->dev_private;
731
732	DRM_DEBUG_KMS("monitors_config=%p\n", qdev->monitors_config);
733	/* TODO: what should we do here? only show the configured modes for the
734	 * device, or allow the full list, or both? */
735	if (qdev->monitors_config && qdev->monitors_config->count) {
736		ret = qxl_add_monitors_config_modes(connector);
737		if (ret < 0)
738			return ret;
739	}
740	ret += qxl_add_common_modes(connector);
741	return ret;
742}
743
744static int qxl_conn_mode_valid(struct drm_connector *connector,
745			       struct drm_display_mode *mode)
746{
747	/* TODO: is this called for user defined modes? (xrandr --add-mode)
748	 * TODO: check that the mode fits in the framebuffer */
749	DRM_DEBUG("%s: %dx%d status=%d\n", mode->name, mode->hdisplay,
750		  mode->vdisplay, mode->status);
751	return MODE_OK;
752}
753
754static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
755{
756	struct qxl_output *qxl_output =
757		drm_connector_to_qxl_output(connector);
758
759	DRM_DEBUG("\n");
760	return &qxl_output->enc;
761}
762
763
764static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
765	.dpms = qxl_enc_dpms,
766	.mode_fixup = qxl_enc_mode_fixup,
767	.prepare = qxl_enc_prepare,
768	.mode_set = qxl_enc_mode_set,
769	.commit = qxl_enc_commit,
770};
771
772static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
773	.get_modes = qxl_conn_get_modes,
774	.mode_valid = qxl_conn_mode_valid,
775	.best_encoder = qxl_best_encoder,
776};
777
778static void qxl_conn_save(struct drm_connector *connector)
779{
780	DRM_DEBUG("\n");
781}
782
783static void qxl_conn_restore(struct drm_connector *connector)
784{
785	DRM_DEBUG("\n");
786}
787
788static enum drm_connector_status qxl_conn_detect(
789			struct drm_connector *connector,
790			bool force)
791{
792	struct qxl_output *output =
793		drm_connector_to_qxl_output(connector);
794	struct drm_device *ddev = connector->dev;
795	struct qxl_device *qdev = ddev->dev_private;
796	int connected;
797
798	/* The first monitor is always connected */
799	connected = (output->index == 0) ||
800		    (qdev->monitors_config &&
801		     qdev->monitors_config->count > output->index);
802
803	DRM_DEBUG("\n");
804	return connected ? connector_status_connected
805			 : connector_status_disconnected;
806}
807
808static int qxl_conn_set_property(struct drm_connector *connector,
809				   struct drm_property *property,
810				   uint64_t value)
811{
812	DRM_DEBUG("\n");
813	return 0;
814}
815
816static void qxl_conn_destroy(struct drm_connector *connector)
817{
818	struct qxl_output *qxl_output =
819		drm_connector_to_qxl_output(connector);
820
821	drm_sysfs_connector_remove(connector);
822	drm_connector_cleanup(connector);
823	kfree(qxl_output);
824}
825
826static const struct drm_connector_funcs qxl_connector_funcs = {
827	.dpms = drm_helper_connector_dpms,
828	.save = qxl_conn_save,
829	.restore = qxl_conn_restore,
830	.detect = qxl_conn_detect,
831	.fill_modes = drm_helper_probe_single_connector_modes,
832	.set_property = qxl_conn_set_property,
833	.destroy = qxl_conn_destroy,
834};
835
836static void qxl_enc_destroy(struct drm_encoder *encoder)
837{
838	drm_encoder_cleanup(encoder);
839}
840
841static const struct drm_encoder_funcs qxl_enc_funcs = {
842	.destroy = qxl_enc_destroy,
843};
844
845static int qdev_output_init(struct drm_device *dev, int num_output)
846{
847	struct qxl_output *qxl_output;
848	struct drm_connector *connector;
849	struct drm_encoder *encoder;
850
851	qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
852	if (!qxl_output)
853		return -ENOMEM;
854
855	qxl_output->index = num_output;
856
857	connector = &qxl_output->base;
858	encoder = &qxl_output->enc;
859	drm_connector_init(dev, &qxl_output->base,
860			   &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
861
862	drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
863			 DRM_MODE_ENCODER_VIRTUAL);
864
865	encoder->possible_crtcs = 1 << num_output;
866	drm_mode_connector_attach_encoder(&qxl_output->base,
867					  &qxl_output->enc);
868	drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
869	drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
870
871	drm_sysfs_connector_add(connector);
872	return 0;
873}
874
875static struct drm_framebuffer *
876qxl_user_framebuffer_create(struct drm_device *dev,
877			    struct drm_file *file_priv,
878			    struct drm_mode_fb_cmd2 *mode_cmd)
879{
880	struct drm_gem_object *obj;
881	struct qxl_framebuffer *qxl_fb;
882	int ret;
883
884	obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
885
886	qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
887	if (qxl_fb == NULL)
888		return NULL;
889
890	ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj);
891	if (ret) {
892		kfree(qxl_fb);
893		drm_gem_object_unreference_unlocked(obj);
894		return NULL;
895	}
896
897	return &qxl_fb->base;
898}
899
900static const struct drm_mode_config_funcs qxl_mode_funcs = {
901	.fb_create = qxl_user_framebuffer_create,
902};
903
904int qxl_modeset_init(struct qxl_device *qdev)
905{
906	int i;
907	int ret;
908	struct drm_gem_object *gobj;
909	int max_allowed = QXL_NUM_OUTPUTS;
910	int monitors_config_size = sizeof(struct qxl_monitors_config) +
911				   max_allowed * sizeof(struct qxl_head);
912
913	drm_mode_config_init(qdev->ddev);
914	ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
915				    QXL_GEM_DOMAIN_VRAM,
916				    false, false, NULL, &gobj);
917	if (ret) {
918		DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
919		return -ENOMEM;
920	}
921	qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
922	qxl_bo_kmap(qdev->monitors_config_bo, NULL);
923	qdev->monitors_config = qdev->monitors_config_bo->kptr;
924	qdev->ram_header->monitors_config =
925		qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
926
927	memset(qdev->monitors_config, 0, monitors_config_size);
928	qdev->monitors_config->max_allowed = max_allowed;
929
930	qdev->ddev->mode_config.funcs = (void *)&qxl_mode_funcs;
931
932	/* modes will be validated against the framebuffer size */
933	qdev->ddev->mode_config.min_width = 320;
934	qdev->ddev->mode_config.min_height = 200;
935	qdev->ddev->mode_config.max_width = 8192;
936	qdev->ddev->mode_config.max_height = 8192;
937
938	qdev->ddev->mode_config.fb_base = qdev->vram_base;
939	for (i = 0 ; i < QXL_NUM_OUTPUTS; ++i) {
940		qdev_crtc_init(qdev->ddev, i);
941		qdev_output_init(qdev->ddev, i);
942	}
943
944	qdev->mode_info.mode_config_initialized = true;
945
946	/* primary surface must be created by this point, to allow
947	 * issuing command queue commands and having them read by
948	 * spice server. */
949	qxl_fbdev_init(qdev);
950	return 0;
951}
952
953void qxl_modeset_fini(struct qxl_device *qdev)
954{
955	qxl_fbdev_fini(qdev);
956	if (qdev->mode_info.mode_config_initialized) {
957		drm_mode_config_cleanup(qdev->ddev);
958		qdev->mode_info.mode_config_initialized = false;
959	}
960}
961