qxl_display.c revision 2bd6ce84e1b4799be1f328a165d0b8a4fdfd2141
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 bool qxl_head_enabled(struct qxl_head *head)
34{
35	return head->width && head->height;
36}
37
38void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count)
39{
40	if (qdev->client_monitors_config &&
41	    count > qdev->client_monitors_config->count) {
42		kfree(qdev->client_monitors_config);
43		qdev->client_monitors_config = NULL;
44	}
45	if (!qdev->client_monitors_config) {
46		qdev->client_monitors_config = kzalloc(
47				sizeof(struct qxl_monitors_config) +
48				sizeof(struct qxl_head) * count, GFP_KERNEL);
49		if (!qdev->client_monitors_config) {
50			qxl_io_log(qdev,
51				   "%s: allocation failure for %u heads\n",
52				   __func__, count);
53			return;
54		}
55	}
56	qdev->client_monitors_config->count = count;
57}
58
59static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
60{
61	int i;
62	int num_monitors;
63	uint32_t crc;
64
65	num_monitors = qdev->rom->client_monitors_config.count;
66	crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
67		  sizeof(qdev->rom->client_monitors_config));
68	if (crc != qdev->rom->client_monitors_config_crc) {
69		qxl_io_log(qdev, "crc mismatch: have %X (%d) != %X\n", crc,
70			   sizeof(qdev->rom->client_monitors_config),
71			   qdev->rom->client_monitors_config_crc);
72		return 1;
73	}
74	if (num_monitors > qdev->monitors_config->max_allowed) {
75		DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
76			      qdev->monitors_config->max_allowed, num_monitors);
77		num_monitors = qdev->monitors_config->max_allowed;
78	} else {
79		num_monitors = qdev->rom->client_monitors_config.count;
80	}
81	qxl_alloc_client_monitors_config(qdev, num_monitors);
82	/* we copy max from the client but it isn't used */
83	qdev->client_monitors_config->max_allowed =
84				qdev->monitors_config->max_allowed;
85	for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
86		struct qxl_urect *c_rect =
87			&qdev->rom->client_monitors_config.heads[i];
88		struct qxl_head *client_head =
89			&qdev->client_monitors_config->heads[i];
90		client_head->x = c_rect->left;
91		client_head->y = c_rect->top;
92		client_head->width = c_rect->right - c_rect->left;
93		client_head->height = c_rect->bottom - c_rect->top;
94		client_head->surface_id = 0;
95		client_head->id = i;
96		client_head->flags = 0;
97		DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
98			  client_head->x, client_head->y);
99	}
100	return 0;
101}
102
103void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
104{
105
106	while (qxl_display_copy_rom_client_monitors_config(qdev)) {
107		qxl_io_log(qdev, "failed crc check for client_monitors_config,"
108				 " retrying\n");
109	}
110	drm_sysfs_hotplug_event(qdev->ddev);
111}
112
113static int qxl_add_monitors_config_modes(struct drm_connector *connector)
114{
115	struct drm_device *dev = connector->dev;
116	struct qxl_device *qdev = dev->dev_private;
117	struct qxl_output *output = drm_connector_to_qxl_output(connector);
118	int h = output->index;
119	struct drm_display_mode *mode = NULL;
120	struct qxl_head *head;
121
122	if (!qdev->client_monitors_config)
123		return 0;
124	head = &qdev->client_monitors_config->heads[h];
125
126	mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
127			    false);
128	mode->type |= DRM_MODE_TYPE_PREFERRED;
129	drm_mode_probed_add(connector, mode);
130	return 1;
131}
132
133static int qxl_add_common_modes(struct drm_connector *connector)
134{
135	struct drm_device *dev = connector->dev;
136	struct drm_display_mode *mode = NULL;
137	int i;
138	struct mode_size {
139		int w;
140		int h;
141	} common_modes[] = {
142		{ 640,  480},
143		{ 720,  480},
144		{ 800,  600},
145		{ 848,  480},
146		{1024,  768},
147		{1152,  768},
148		{1280,  720},
149		{1280,  800},
150		{1280,  854},
151		{1280,  960},
152		{1280, 1024},
153		{1440,  900},
154		{1400, 1050},
155		{1680, 1050},
156		{1600, 1200},
157		{1920, 1080},
158		{1920, 1200}
159	};
160
161	for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
162		if (common_modes[i].w < 320 || common_modes[i].h < 200)
163			continue;
164
165		mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
166				    60, false, false, false);
167		if (common_modes[i].w == 1024 && common_modes[i].h == 768)
168			mode->type |= DRM_MODE_TYPE_PREFERRED;
169		drm_mode_probed_add(connector, mode);
170	}
171	return i - 1;
172}
173
174static void qxl_crtc_destroy(struct drm_crtc *crtc)
175{
176	struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
177
178	drm_crtc_cleanup(crtc);
179	kfree(qxl_crtc);
180}
181
182static void
183qxl_hide_cursor(struct qxl_device *qdev)
184{
185	struct qxl_release *release;
186	struct qxl_cursor_cmd *cmd;
187	int ret;
188
189	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
190					 &release, NULL);
191
192	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
193	cmd->type = QXL_CURSOR_HIDE;
194	qxl_release_unmap(qdev, release, &cmd->release_info);
195
196	qxl_fence_releaseable(qdev, release);
197	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
198	qxl_release_unreserve(qdev, release);
199}
200
201static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
202				struct drm_file *file_priv,
203				uint32_t handle,
204				uint32_t width,
205				uint32_t height, int32_t hot_x, int32_t hot_y)
206{
207	struct drm_device *dev = crtc->dev;
208	struct qxl_device *qdev = dev->dev_private;
209	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
210	struct drm_gem_object *obj;
211	struct qxl_cursor *cursor;
212	struct qxl_cursor_cmd *cmd;
213	struct qxl_bo *cursor_bo, *user_bo;
214	struct qxl_release *release;
215	void *user_ptr;
216
217	int size = 64*64*4;
218	int ret = 0;
219	if (!handle) {
220		qxl_hide_cursor(qdev);
221		return 0;
222	}
223
224	obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
225	if (!obj) {
226		DRM_ERROR("cannot find cursor object\n");
227		return -ENOENT;
228	}
229
230	user_bo = gem_to_qxl_bo(obj);
231
232	ret = qxl_bo_reserve(user_bo, false);
233	if (ret)
234		goto out_unref;
235
236	ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
237	if (ret)
238		goto out_unreserve;
239
240	ret = qxl_bo_kmap(user_bo, &user_ptr);
241	if (ret)
242		goto out_unpin;
243
244	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
245					 QXL_RELEASE_CURSOR_CMD,
246					 &release, NULL);
247	if (ret)
248		goto out_kunmap;
249	ret = qxl_alloc_bo_reserved(qdev, sizeof(struct qxl_cursor) + size,
250				    &cursor_bo);
251	if (ret)
252		goto out_free_release;
253	ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
254	if (ret)
255		goto out_free_bo;
256
257	cursor->header.unique = 0;
258	cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
259	cursor->header.width = 64;
260	cursor->header.height = 64;
261	cursor->header.hot_spot_x = hot_x;
262	cursor->header.hot_spot_y = hot_y;
263	cursor->data_size = size;
264	cursor->chunk.next_chunk = 0;
265	cursor->chunk.prev_chunk = 0;
266	cursor->chunk.data_size = size;
267
268	memcpy(cursor->chunk.data, user_ptr, size);
269
270	qxl_bo_kunmap(cursor_bo);
271
272	/* finish with the userspace bo */
273	qxl_bo_kunmap(user_bo);
274	qxl_bo_unpin(user_bo);
275	qxl_bo_unreserve(user_bo);
276	drm_gem_object_unreference_unlocked(obj);
277
278	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
279	cmd->type = QXL_CURSOR_SET;
280	cmd->u.set.position.x = qcrtc->cur_x;
281	cmd->u.set.position.y = qcrtc->cur_y;
282
283	cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
284	qxl_release_add_res(qdev, release, cursor_bo);
285
286	cmd->u.set.visible = 1;
287	qxl_release_unmap(qdev, release, &cmd->release_info);
288
289	qxl_fence_releaseable(qdev, release);
290	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
291	qxl_release_unreserve(qdev, release);
292
293	qxl_bo_unreserve(cursor_bo);
294	qxl_bo_unref(&cursor_bo);
295
296	return ret;
297out_free_bo:
298	qxl_bo_unref(&cursor_bo);
299out_free_release:
300	qxl_release_unreserve(qdev, release);
301	qxl_release_free(qdev, release);
302out_kunmap:
303	qxl_bo_kunmap(user_bo);
304out_unpin:
305	qxl_bo_unpin(user_bo);
306out_unreserve:
307	qxl_bo_unreserve(user_bo);
308out_unref:
309	drm_gem_object_unreference_unlocked(obj);
310	return ret;
311}
312
313static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
314				int x, int y)
315{
316	struct drm_device *dev = crtc->dev;
317	struct qxl_device *qdev = dev->dev_private;
318	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
319	struct qxl_release *release;
320	struct qxl_cursor_cmd *cmd;
321	int ret;
322
323	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
324				   &release, NULL);
325
326	qcrtc->cur_x = x;
327	qcrtc->cur_y = y;
328
329	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
330	cmd->type = QXL_CURSOR_MOVE;
331	cmd->u.position.x = qcrtc->cur_x;
332	cmd->u.position.y = qcrtc->cur_y;
333	qxl_release_unmap(qdev, release, &cmd->release_info);
334
335	qxl_fence_releaseable(qdev, release);
336	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
337	qxl_release_unreserve(qdev, release);
338	return 0;
339}
340
341
342static const struct drm_crtc_funcs qxl_crtc_funcs = {
343	.cursor_set2 = qxl_crtc_cursor_set2,
344	.cursor_move = qxl_crtc_cursor_move,
345	.set_config = drm_crtc_helper_set_config,
346	.destroy = qxl_crtc_destroy,
347};
348
349static void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
350{
351	struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
352
353	if (qxl_fb->obj)
354		drm_gem_object_unreference_unlocked(qxl_fb->obj);
355	drm_framebuffer_cleanup(fb);
356	kfree(qxl_fb);
357}
358
359static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
360					 struct drm_file *file_priv,
361					 unsigned flags, unsigned color,
362					 struct drm_clip_rect *clips,
363					 unsigned num_clips)
364{
365	/* TODO: vmwgfx where this was cribbed from had locking. Why? */
366	struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
367	struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
368	struct drm_clip_rect norect;
369	struct qxl_bo *qobj;
370	int inc = 1;
371
372	qobj = gem_to_qxl_bo(qxl_fb->obj);
373	/* if we aren't primary surface ignore this */
374	if (!qobj->is_primary)
375		return 0;
376
377	if (!num_clips) {
378		num_clips = 1;
379		clips = &norect;
380		norect.x1 = norect.y1 = 0;
381		norect.x2 = fb->width;
382		norect.y2 = fb->height;
383	} else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
384		num_clips /= 2;
385		inc = 2; /* skip source rects */
386	}
387
388	qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
389			  clips, num_clips, inc);
390	return 0;
391}
392
393static const struct drm_framebuffer_funcs qxl_fb_funcs = {
394	.destroy = qxl_user_framebuffer_destroy,
395	.dirty = qxl_framebuffer_surface_dirty,
396/*	TODO?
397 *	.create_handle = qxl_user_framebuffer_create_handle, */
398};
399
400int
401qxl_framebuffer_init(struct drm_device *dev,
402		     struct qxl_framebuffer *qfb,
403		     struct drm_mode_fb_cmd2 *mode_cmd,
404		     struct drm_gem_object *obj)
405{
406	int ret;
407
408	qfb->obj = obj;
409	ret = drm_framebuffer_init(dev, &qfb->base, &qxl_fb_funcs);
410	if (ret) {
411		qfb->obj = NULL;
412		return ret;
413	}
414	drm_helper_mode_fill_fb_struct(&qfb->base, mode_cmd);
415	return 0;
416}
417
418static void qxl_crtc_dpms(struct drm_crtc *crtc, int mode)
419{
420}
421
422static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
423				  const struct drm_display_mode *mode,
424				  struct drm_display_mode *adjusted_mode)
425{
426	struct drm_device *dev = crtc->dev;
427	struct qxl_device *qdev = dev->dev_private;
428
429	qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
430		   __func__,
431		   mode->hdisplay, mode->vdisplay,
432		   adjusted_mode->hdisplay,
433		   adjusted_mode->vdisplay);
434	return true;
435}
436
437void
438qxl_send_monitors_config(struct qxl_device *qdev)
439{
440	int i;
441
442	BUG_ON(!qdev->ram_header->monitors_config);
443
444	if (qdev->monitors_config->count == 0) {
445		qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
446		return;
447	}
448	for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
449		struct qxl_head *head = &qdev->monitors_config->heads[i];
450
451		if (head->y > 8192 || head->x > 8192 ||
452		    head->width > 8192 || head->height > 8192) {
453			DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
454				  i, head->width, head->height,
455				  head->x, head->y);
456			return;
457		}
458	}
459	qxl_io_monitors_config(qdev);
460}
461
462static void qxl_monitors_config_set(struct qxl_device *qdev,
463				    int index,
464				    unsigned x, unsigned y,
465				    unsigned width, unsigned height,
466				    unsigned surf_id)
467{
468	DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
469	qdev->monitors_config->heads[index].x = x;
470	qdev->monitors_config->heads[index].y = y;
471	qdev->monitors_config->heads[index].width = width;
472	qdev->monitors_config->heads[index].height = height;
473	qdev->monitors_config->heads[index].surface_id = surf_id;
474
475}
476
477static int qxl_crtc_mode_set(struct drm_crtc *crtc,
478			       struct drm_display_mode *mode,
479			       struct drm_display_mode *adjusted_mode,
480			       int x, int y,
481			       struct drm_framebuffer *old_fb)
482{
483	struct drm_device *dev = crtc->dev;
484	struct qxl_device *qdev = dev->dev_private;
485	struct qxl_mode *m = (void *)mode->private;
486	struct qxl_framebuffer *qfb;
487	struct qxl_bo *bo, *old_bo = NULL;
488	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
489	uint32_t width, height, base_offset;
490	bool recreate_primary = false;
491	int ret;
492	int surf_id;
493	if (!crtc->fb) {
494		DRM_DEBUG_KMS("No FB bound\n");
495		return 0;
496	}
497
498	if (old_fb) {
499		qfb = to_qxl_framebuffer(old_fb);
500		old_bo = gem_to_qxl_bo(qfb->obj);
501	}
502	qfb = to_qxl_framebuffer(crtc->fb);
503	bo = gem_to_qxl_bo(qfb->obj);
504	if (!m)
505		/* and do we care? */
506		DRM_DEBUG("%dx%d: not a native mode\n", x, y);
507	else
508		DRM_DEBUG("%dx%d: qxl id %d\n",
509			  mode->hdisplay, mode->vdisplay, m->id);
510	DRM_DEBUG("+%d+%d (%d,%d) => (%d,%d)\n",
511		  x, y,
512		  mode->hdisplay, mode->vdisplay,
513		  adjusted_mode->hdisplay,
514		  adjusted_mode->vdisplay);
515
516	if (qcrtc->index == 0)
517		recreate_primary = true;
518
519	width = mode->hdisplay;
520	height = mode->vdisplay;
521	base_offset = 0;
522
523	ret = qxl_bo_reserve(bo, false);
524	if (ret != 0)
525		return ret;
526	ret = qxl_bo_pin(bo, bo->type, NULL);
527	if (ret != 0) {
528		qxl_bo_unreserve(bo);
529		return -EINVAL;
530	}
531	qxl_bo_unreserve(bo);
532	if (recreate_primary) {
533		qxl_io_destroy_primary(qdev);
534		qxl_io_log(qdev,
535			   "recreate primary: %dx%d (was %dx%d,%d,%d)\n",
536			   width, height, bo->surf.width,
537			   bo->surf.height, bo->surf.stride, bo->surf.format);
538		qxl_io_create_primary(qdev, base_offset, bo);
539		bo->is_primary = true;
540		surf_id = 0;
541	} else {
542		surf_id = bo->surface_id;
543	}
544
545	if (old_bo && old_bo != bo) {
546		old_bo->is_primary = false;
547		ret = qxl_bo_reserve(old_bo, false);
548		qxl_bo_unpin(old_bo);
549		qxl_bo_unreserve(old_bo);
550	}
551
552	qxl_monitors_config_set(qdev, qcrtc->index, x, y,
553				mode->hdisplay,
554				mode->vdisplay, surf_id);
555	return 0;
556}
557
558static void qxl_crtc_prepare(struct drm_crtc *crtc)
559{
560	DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
561		  crtc->mode.hdisplay, crtc->mode.vdisplay,
562		  crtc->x, crtc->y, crtc->enabled);
563}
564
565static void qxl_crtc_commit(struct drm_crtc *crtc)
566{
567	DRM_DEBUG("\n");
568}
569
570static void qxl_crtc_disable(struct drm_crtc *crtc)
571{
572	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
573	struct drm_device *dev = crtc->dev;
574	struct qxl_device *qdev = dev->dev_private;
575	if (crtc->fb) {
576		struct qxl_framebuffer *qfb = to_qxl_framebuffer(crtc->fb);
577		struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
578		int ret;
579		ret = qxl_bo_reserve(bo, false);
580		qxl_bo_unpin(bo);
581		qxl_bo_unreserve(bo);
582		crtc->fb = NULL;
583	}
584
585	qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
586
587	qxl_send_monitors_config(qdev);
588}
589
590static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
591	.dpms = qxl_crtc_dpms,
592	.disable = qxl_crtc_disable,
593	.mode_fixup = qxl_crtc_mode_fixup,
594	.mode_set = qxl_crtc_mode_set,
595	.prepare = qxl_crtc_prepare,
596	.commit = qxl_crtc_commit,
597};
598
599static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
600{
601	struct qxl_crtc *qxl_crtc;
602
603	qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
604	if (!qxl_crtc)
605		return -ENOMEM;
606
607	drm_crtc_init(dev, &qxl_crtc->base, &qxl_crtc_funcs);
608	qxl_crtc->index = crtc_id;
609	drm_mode_crtc_set_gamma_size(&qxl_crtc->base, 256);
610	drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
611	return 0;
612}
613
614static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
615{
616	DRM_DEBUG("\n");
617}
618
619static bool qxl_enc_mode_fixup(struct drm_encoder *encoder,
620			       const struct drm_display_mode *mode,
621			       struct drm_display_mode *adjusted_mode)
622{
623	DRM_DEBUG("\n");
624	return true;
625}
626
627static void qxl_enc_prepare(struct drm_encoder *encoder)
628{
629	DRM_DEBUG("\n");
630}
631
632static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
633		struct drm_encoder *encoder)
634{
635	int i;
636	struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
637	struct qxl_head *head;
638	struct drm_display_mode *mode;
639
640	BUG_ON(!encoder);
641	/* TODO: ugly, do better */
642	i = output->index;
643	if (!qdev->monitors_config ||
644	    qdev->monitors_config->max_allowed <= i) {
645		DRM_ERROR(
646		"head number too large or missing monitors config: %p, %d",
647		qdev->monitors_config,
648		qdev->monitors_config ?
649			qdev->monitors_config->max_allowed : -1);
650		return;
651	}
652	if (!encoder->crtc) {
653		DRM_ERROR("missing crtc on encoder %p\n", encoder);
654		return;
655	}
656	if (i != 0)
657		DRM_DEBUG("missing for multiple monitors: no head holes\n");
658	head = &qdev->monitors_config->heads[i];
659	head->id = i;
660	if (encoder->crtc->enabled) {
661		mode = &encoder->crtc->mode;
662		head->width = mode->hdisplay;
663		head->height = mode->vdisplay;
664		head->x = encoder->crtc->x;
665		head->y = encoder->crtc->y;
666		if (qdev->monitors_config->count < i + 1)
667			qdev->monitors_config->count = i + 1;
668	} else {
669		head->width = 0;
670		head->height = 0;
671		head->x = 0;
672		head->y = 0;
673	}
674	DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
675		      i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
676	head->flags = 0;
677	/* TODO - somewhere else to call this for multiple monitors
678	 * (config_commit?) */
679	qxl_send_monitors_config(qdev);
680}
681
682static void qxl_enc_commit(struct drm_encoder *encoder)
683{
684	struct qxl_device *qdev = encoder->dev->dev_private;
685
686	qxl_write_monitors_config_for_encoder(qdev, encoder);
687	DRM_DEBUG("\n");
688}
689
690static void qxl_enc_mode_set(struct drm_encoder *encoder,
691				struct drm_display_mode *mode,
692				struct drm_display_mode *adjusted_mode)
693{
694	DRM_DEBUG("\n");
695}
696
697static int qxl_conn_get_modes(struct drm_connector *connector)
698{
699	int ret = 0;
700	struct qxl_device *qdev = connector->dev->dev_private;
701
702	DRM_DEBUG_KMS("monitors_config=%p\n", qdev->monitors_config);
703	/* TODO: what should we do here? only show the configured modes for the
704	 * device, or allow the full list, or both? */
705	if (qdev->monitors_config && qdev->monitors_config->count) {
706		ret = qxl_add_monitors_config_modes(connector);
707		if (ret < 0)
708			return ret;
709	}
710	ret += qxl_add_common_modes(connector);
711	return ret;
712}
713
714static int qxl_conn_mode_valid(struct drm_connector *connector,
715			       struct drm_display_mode *mode)
716{
717	/* TODO: is this called for user defined modes? (xrandr --add-mode)
718	 * TODO: check that the mode fits in the framebuffer */
719	DRM_DEBUG("%s: %dx%d status=%d\n", mode->name, mode->hdisplay,
720		  mode->vdisplay, mode->status);
721	return MODE_OK;
722}
723
724static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
725{
726	struct qxl_output *qxl_output =
727		drm_connector_to_qxl_output(connector);
728
729	DRM_DEBUG("\n");
730	return &qxl_output->enc;
731}
732
733
734static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
735	.dpms = qxl_enc_dpms,
736	.mode_fixup = qxl_enc_mode_fixup,
737	.prepare = qxl_enc_prepare,
738	.mode_set = qxl_enc_mode_set,
739	.commit = qxl_enc_commit,
740};
741
742static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
743	.get_modes = qxl_conn_get_modes,
744	.mode_valid = qxl_conn_mode_valid,
745	.best_encoder = qxl_best_encoder,
746};
747
748static void qxl_conn_save(struct drm_connector *connector)
749{
750	DRM_DEBUG("\n");
751}
752
753static void qxl_conn_restore(struct drm_connector *connector)
754{
755	DRM_DEBUG("\n");
756}
757
758static enum drm_connector_status qxl_conn_detect(
759			struct drm_connector *connector,
760			bool force)
761{
762	struct qxl_output *output =
763		drm_connector_to_qxl_output(connector);
764	struct drm_device *ddev = connector->dev;
765	struct qxl_device *qdev = ddev->dev_private;
766	int connected;
767
768	/* The first monitor is always connected */
769	connected = (output->index == 0) ||
770		    (qdev->client_monitors_config &&
771		     qdev->client_monitors_config->count > output->index &&
772		     qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]));
773
774	DRM_DEBUG("\n");
775	return connected ? connector_status_connected
776			 : connector_status_disconnected;
777}
778
779static int qxl_conn_set_property(struct drm_connector *connector,
780				   struct drm_property *property,
781				   uint64_t value)
782{
783	DRM_DEBUG("\n");
784	return 0;
785}
786
787static void qxl_conn_destroy(struct drm_connector *connector)
788{
789	struct qxl_output *qxl_output =
790		drm_connector_to_qxl_output(connector);
791
792	drm_sysfs_connector_remove(connector);
793	drm_connector_cleanup(connector);
794	kfree(qxl_output);
795}
796
797static const struct drm_connector_funcs qxl_connector_funcs = {
798	.dpms = drm_helper_connector_dpms,
799	.save = qxl_conn_save,
800	.restore = qxl_conn_restore,
801	.detect = qxl_conn_detect,
802	.fill_modes = drm_helper_probe_single_connector_modes,
803	.set_property = qxl_conn_set_property,
804	.destroy = qxl_conn_destroy,
805};
806
807static void qxl_enc_destroy(struct drm_encoder *encoder)
808{
809	drm_encoder_cleanup(encoder);
810}
811
812static const struct drm_encoder_funcs qxl_enc_funcs = {
813	.destroy = qxl_enc_destroy,
814};
815
816static int qdev_output_init(struct drm_device *dev, int num_output)
817{
818	struct qxl_output *qxl_output;
819	struct drm_connector *connector;
820	struct drm_encoder *encoder;
821
822	qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
823	if (!qxl_output)
824		return -ENOMEM;
825
826	qxl_output->index = num_output;
827
828	connector = &qxl_output->base;
829	encoder = &qxl_output->enc;
830	drm_connector_init(dev, &qxl_output->base,
831			   &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
832
833	drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
834			 DRM_MODE_ENCODER_VIRTUAL);
835
836	encoder->possible_crtcs = 1 << num_output;
837	drm_mode_connector_attach_encoder(&qxl_output->base,
838					  &qxl_output->enc);
839	drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
840	drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
841
842	drm_sysfs_connector_add(connector);
843	return 0;
844}
845
846static struct drm_framebuffer *
847qxl_user_framebuffer_create(struct drm_device *dev,
848			    struct drm_file *file_priv,
849			    struct drm_mode_fb_cmd2 *mode_cmd)
850{
851	struct drm_gem_object *obj;
852	struct qxl_framebuffer *qxl_fb;
853	int ret;
854
855	obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
856
857	qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
858	if (qxl_fb == NULL)
859		return NULL;
860
861	ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj);
862	if (ret) {
863		kfree(qxl_fb);
864		drm_gem_object_unreference_unlocked(obj);
865		return NULL;
866	}
867
868	return &qxl_fb->base;
869}
870
871static const struct drm_mode_config_funcs qxl_mode_funcs = {
872	.fb_create = qxl_user_framebuffer_create,
873};
874
875int qxl_create_monitors_object(struct qxl_device *qdev)
876{
877	int ret;
878	struct drm_gem_object *gobj;
879	int max_allowed = qxl_num_crtc;
880	int monitors_config_size = sizeof(struct qxl_monitors_config) +
881		max_allowed * sizeof(struct qxl_head);
882
883	ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
884				    QXL_GEM_DOMAIN_VRAM,
885				    false, false, NULL, &gobj);
886	if (ret) {
887		DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
888		return -ENOMEM;
889	}
890	qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
891
892	ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
893	if (ret)
894		return ret;
895
896	ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
897	if (ret) {
898		qxl_bo_unreserve(qdev->monitors_config_bo);
899		return ret;
900	}
901
902	qxl_bo_unreserve(qdev->monitors_config_bo);
903
904	qxl_bo_kmap(qdev->monitors_config_bo, NULL);
905
906	qdev->monitors_config = qdev->monitors_config_bo->kptr;
907	qdev->ram_header->monitors_config =
908		qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
909
910	memset(qdev->monitors_config, 0, monitors_config_size);
911	qdev->monitors_config->max_allowed = max_allowed;
912	return 0;
913}
914
915int qxl_destroy_monitors_object(struct qxl_device *qdev)
916{
917	int ret;
918
919	qdev->monitors_config = NULL;
920	qdev->ram_header->monitors_config = 0;
921
922	qxl_bo_kunmap(qdev->monitors_config_bo);
923	ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
924	if (ret)
925		return ret;
926
927	qxl_bo_unpin(qdev->monitors_config_bo);
928	qxl_bo_unreserve(qdev->monitors_config_bo);
929
930	qxl_bo_unref(&qdev->monitors_config_bo);
931	return 0;
932}
933
934int qxl_modeset_init(struct qxl_device *qdev)
935{
936	int i;
937	int ret;
938
939	drm_mode_config_init(qdev->ddev);
940
941	ret = qxl_create_monitors_object(qdev);
942	if (ret)
943		return ret;
944
945	qdev->ddev->mode_config.funcs = (void *)&qxl_mode_funcs;
946
947	/* modes will be validated against the framebuffer size */
948	qdev->ddev->mode_config.min_width = 320;
949	qdev->ddev->mode_config.min_height = 200;
950	qdev->ddev->mode_config.max_width = 8192;
951	qdev->ddev->mode_config.max_height = 8192;
952
953	qdev->ddev->mode_config.fb_base = qdev->vram_base;
954	for (i = 0 ; i < qxl_num_crtc; ++i) {
955		qdev_crtc_init(qdev->ddev, i);
956		qdev_output_init(qdev->ddev, i);
957	}
958
959	qdev->mode_info.mode_config_initialized = true;
960
961	/* primary surface must be created by this point, to allow
962	 * issuing command queue commands and having them read by
963	 * spice server. */
964	qxl_fbdev_init(qdev);
965	return 0;
966}
967
968void qxl_modeset_fini(struct qxl_device *qdev)
969{
970	qxl_fbdev_fini(qdev);
971
972	qxl_destroy_monitors_object(qdev);
973	if (qdev->mode_info.mode_config_initialized) {
974		drm_mode_config_cleanup(qdev->ddev);
975		qdev->mode_info.mode_config_initialized = false;
976	}
977}
978