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   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
 111	if (!drm_helper_hpd_irq_event(qdev->ddev)) {
 112		/* notify that the monitor configuration changed, to
 113		   adjust at the arbitrary resolution */
 114		drm_kms_helper_hotplug_event(qdev->ddev);
 115	}
 116}
 117
 118static int qxl_add_monitors_config_modes(struct drm_connector *connector,
 119                                         unsigned *pwidth,
 120                                         unsigned *pheight)
 121{
 122	struct drm_device *dev = connector->dev;
 123	struct qxl_device *qdev = dev->dev_private;
 124	struct qxl_output *output = drm_connector_to_qxl_output(connector);
 125	int h = output->index;
 126	struct drm_display_mode *mode = NULL;
 127	struct qxl_head *head;
 128
 129	if (!qdev->client_monitors_config)
 130		return 0;
 131	head = &qdev->client_monitors_config->heads[h];
 132
 133	mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
 134			    false);
 135	mode->type |= DRM_MODE_TYPE_PREFERRED;
 136	*pwidth = head->width;
 137	*pheight = head->height;
 138	drm_mode_probed_add(connector, mode);
 139	return 1;
 140}
 141
 142static int qxl_add_common_modes(struct drm_connector *connector,
 143                                unsigned pwidth,
 144                                unsigned pheight)
 145{
 146	struct drm_device *dev = connector->dev;
 147	struct drm_display_mode *mode = NULL;
 148	int i;
 149	struct mode_size {
 150		int w;
 151		int h;
 152	} common_modes[] = {
 153		{ 640,  480},
 154		{ 720,  480},
 155		{ 800,  600},
 156		{ 848,  480},
 157		{1024,  768},
 158		{1152,  768},
 159		{1280,  720},
 160		{1280,  800},
 161		{1280,  854},
 162		{1280,  960},
 163		{1280, 1024},
 164		{1440,  900},
 165		{1400, 1050},
 166		{1680, 1050},
 167		{1600, 1200},
 168		{1920, 1080},
 169		{1920, 1200}
 170	};
 171
 172	for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
 173		mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
 174				    60, false, false, false);
 175		if (common_modes[i].w == pwidth && common_modes[i].h == pheight)
 176			mode->type |= DRM_MODE_TYPE_PREFERRED;
 177		drm_mode_probed_add(connector, mode);
 178	}
 179	return i - 1;
 180}
 181
 182static void qxl_crtc_destroy(struct drm_crtc *crtc)
 183{
 184	struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
 185
 186	drm_crtc_cleanup(crtc);
 187	kfree(qxl_crtc);
 188}
 189
 190static int
 191qxl_hide_cursor(struct qxl_device *qdev)
 192{
 193	struct qxl_release *release;
 194	struct qxl_cursor_cmd *cmd;
 195	int ret;
 196
 197	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 198					 &release, NULL);
 199	if (ret)
 200		return ret;
 201
 202	ret = qxl_release_reserve_list(release, true);
 203	if (ret) {
 204		qxl_release_free(qdev, release);
 205		return ret;
 206	}
 207
 208	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 209	cmd->type = QXL_CURSOR_HIDE;
 210	qxl_release_unmap(qdev, release, &cmd->release_info);
 211
 212	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 213	qxl_release_fence_buffer_objects(release);
 214	return 0;
 215}
 216
 217static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
 218				struct drm_file *file_priv,
 219				uint32_t handle,
 220				uint32_t width,
 221				uint32_t height, int32_t hot_x, int32_t hot_y)
 222{
 223	struct drm_device *dev = crtc->dev;
 224	struct qxl_device *qdev = dev->dev_private;
 225	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 226	struct drm_gem_object *obj;
 227	struct qxl_cursor *cursor;
 228	struct qxl_cursor_cmd *cmd;
 229	struct qxl_bo *cursor_bo, *user_bo;
 230	struct qxl_release *release;
 231	void *user_ptr;
 232
 233	int size = 64*64*4;
 234	int ret = 0;
 235	if (!handle)
 236		return qxl_hide_cursor(qdev);
 237
 238	obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
 239	if (!obj) {
 240		DRM_ERROR("cannot find cursor object\n");
 241		return -ENOENT;
 242	}
 243
 244	user_bo = gem_to_qxl_bo(obj);
 245
 246	ret = qxl_bo_reserve(user_bo, false);
 247	if (ret)
 248		goto out_unref;
 249
 250	ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
 251	qxl_bo_unreserve(user_bo);
 252	if (ret)
 253		goto out_unref;
 254
 255	ret = qxl_bo_kmap(user_bo, &user_ptr);
 256	if (ret)
 257		goto out_unpin;
 258
 259	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
 260					 QXL_RELEASE_CURSOR_CMD,
 261					 &release, NULL);
 262	if (ret)
 263		goto out_kunmap;
 264
 265	ret = qxl_alloc_bo_reserved(qdev, release, sizeof(struct qxl_cursor) + size,
 266			   &cursor_bo);
 267	if (ret)
 268		goto out_free_release;
 269
 270	ret = qxl_release_reserve_list(release, false);
 271	if (ret)
 272		goto out_free_bo;
 273
 274	ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
 275	if (ret)
 276		goto out_backoff;
 277
 278	cursor->header.unique = 0;
 279	cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
 280	cursor->header.width = 64;
 281	cursor->header.height = 64;
 282	cursor->header.hot_spot_x = hot_x;
 283	cursor->header.hot_spot_y = hot_y;
 284	cursor->data_size = size;
 285	cursor->chunk.next_chunk = 0;
 286	cursor->chunk.prev_chunk = 0;
 287	cursor->chunk.data_size = size;
 288
 289	memcpy(cursor->chunk.data, user_ptr, size);
 290
 291	qxl_bo_kunmap(cursor_bo);
 292
 293	qxl_bo_kunmap(user_bo);
 294
 295	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 296	cmd->type = QXL_CURSOR_SET;
 297	cmd->u.set.position.x = qcrtc->cur_x;
 298	cmd->u.set.position.y = qcrtc->cur_y;
 299
 300	cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
 301
 302	cmd->u.set.visible = 1;
 303	qxl_release_unmap(qdev, release, &cmd->release_info);
 304
 305	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 306	qxl_release_fence_buffer_objects(release);
 307
 308	/* finish with the userspace bo */
 309	ret = qxl_bo_reserve(user_bo, false);
 310	if (!ret) {
 311		qxl_bo_unpin(user_bo);
 312		qxl_bo_unreserve(user_bo);
 313	}
 314	drm_gem_object_unreference_unlocked(obj);
 315
 316	qxl_bo_unref(&cursor_bo);
 317
 318	return ret;
 319
 320out_backoff:
 321	qxl_release_backoff_reserve_list(release);
 322out_free_bo:
 323	qxl_bo_unref(&cursor_bo);
 324out_free_release:
 325	qxl_release_free(qdev, release);
 326out_kunmap:
 327	qxl_bo_kunmap(user_bo);
 328out_unpin:
 329	qxl_bo_unpin(user_bo);
 330out_unref:
 331	drm_gem_object_unreference_unlocked(obj);
 332	return ret;
 333}
 334
 335static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
 336				int x, int y)
 337{
 338	struct drm_device *dev = crtc->dev;
 339	struct qxl_device *qdev = dev->dev_private;
 340	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 341	struct qxl_release *release;
 342	struct qxl_cursor_cmd *cmd;
 343	int ret;
 344
 345	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
 346				   &release, NULL);
 347	if (ret)
 348		return ret;
 349
 350	ret = qxl_release_reserve_list(release, true);
 351	if (ret) {
 352		qxl_release_free(qdev, release);
 353		return ret;
 354	}
 355
 356	qcrtc->cur_x = x;
 357	qcrtc->cur_y = y;
 358
 359	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
 360	cmd->type = QXL_CURSOR_MOVE;
 361	cmd->u.position.x = qcrtc->cur_x;
 362	cmd->u.position.y = qcrtc->cur_y;
 363	qxl_release_unmap(qdev, release, &cmd->release_info);
 364
 365	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
 366	qxl_release_fence_buffer_objects(release);
 367
 368	return 0;
 369}
 370
 371
 372static const struct drm_crtc_funcs qxl_crtc_funcs = {
 373	.cursor_set2 = qxl_crtc_cursor_set2,
 374	.cursor_move = qxl_crtc_cursor_move,
 375	.set_config = drm_crtc_helper_set_config,
 376	.destroy = qxl_crtc_destroy,
 377};
 378
 379static void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
 380{
 381	struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 382
 383	if (qxl_fb->obj)
 384		drm_gem_object_unreference_unlocked(qxl_fb->obj);
 385	drm_framebuffer_cleanup(fb);
 386	kfree(qxl_fb);
 387}
 388
 389static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
 390					 struct drm_file *file_priv,
 391					 unsigned flags, unsigned color,
 392					 struct drm_clip_rect *clips,
 393					 unsigned num_clips)
 394{
 395	/* TODO: vmwgfx where this was cribbed from had locking. Why? */
 396	struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
 397	struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
 398	struct drm_clip_rect norect;
 399	struct qxl_bo *qobj;
 400	int inc = 1;
 401
 402	drm_modeset_lock_all(fb->dev);
 403
 404	qobj = gem_to_qxl_bo(qxl_fb->obj);
 405	/* if we aren't primary surface ignore this */
 406	if (!qobj->is_primary) {
 407		drm_modeset_unlock_all(fb->dev);
 408		return 0;
 409	}
 410
 411	if (!num_clips) {
 412		num_clips = 1;
 413		clips = &norect;
 414		norect.x1 = norect.y1 = 0;
 415		norect.x2 = fb->width;
 416		norect.y2 = fb->height;
 417	} else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
 418		num_clips /= 2;
 419		inc = 2; /* skip source rects */
 420	}
 421
 422	qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
 423			  clips, num_clips, inc);
 424
 425	drm_modeset_unlock_all(fb->dev);
 426
 427	return 0;
 428}
 429
 430static const struct drm_framebuffer_funcs qxl_fb_funcs = {
 431	.destroy = qxl_user_framebuffer_destroy,
 432	.dirty = qxl_framebuffer_surface_dirty,
 433/*	TODO?
 434 *	.create_handle = qxl_user_framebuffer_create_handle, */
 435};
 436
 437int
 438qxl_framebuffer_init(struct drm_device *dev,
 439		     struct qxl_framebuffer *qfb,
 440		     struct drm_mode_fb_cmd2 *mode_cmd,
 441		     struct drm_gem_object *obj)
 442{
 443	int ret;
 444
 445	qfb->obj = obj;
 446	ret = drm_framebuffer_init(dev, &qfb->base, &qxl_fb_funcs);
 447	if (ret) {
 448		qfb->obj = NULL;
 449		return ret;
 450	}
 451	drm_helper_mode_fill_fb_struct(&qfb->base, mode_cmd);
 452	return 0;
 453}
 454
 455static void qxl_crtc_dpms(struct drm_crtc *crtc, int mode)
 456{
 457}
 458
 459static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
 460				  const struct drm_display_mode *mode,
 461				  struct drm_display_mode *adjusted_mode)
 462{
 463	struct drm_device *dev = crtc->dev;
 464	struct qxl_device *qdev = dev->dev_private;
 465
 466	qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
 467		   __func__,
 468		   mode->hdisplay, mode->vdisplay,
 469		   adjusted_mode->hdisplay,
 470		   adjusted_mode->vdisplay);
 471	return true;
 472}
 473
 474void
 475qxl_send_monitors_config(struct qxl_device *qdev)
 476{
 477	int i;
 478
 479	BUG_ON(!qdev->ram_header->monitors_config);
 480
 481	if (qdev->monitors_config->count == 0) {
 482		qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
 483		return;
 484	}
 485	for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
 486		struct qxl_head *head = &qdev->monitors_config->heads[i];
 487
 488		if (head->y > 8192 || head->x > 8192 ||
 489		    head->width > 8192 || head->height > 8192) {
 490			DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
 491				  i, head->width, head->height,
 492				  head->x, head->y);
 493			return;
 494		}
 495	}
 496	qxl_io_monitors_config(qdev);
 497}
 498
 499static void qxl_monitors_config_set(struct qxl_device *qdev,
 500				    int index,
 501				    unsigned x, unsigned y,
 502				    unsigned width, unsigned height,
 503				    unsigned surf_id)
 504{
 505	DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
 506	qdev->monitors_config->heads[index].x = x;
 507	qdev->monitors_config->heads[index].y = y;
 508	qdev->monitors_config->heads[index].width = width;
 509	qdev->monitors_config->heads[index].height = height;
 510	qdev->monitors_config->heads[index].surface_id = surf_id;
 511
 512}
 513
 514static int qxl_crtc_mode_set(struct drm_crtc *crtc,
 515			       struct drm_display_mode *mode,
 516			       struct drm_display_mode *adjusted_mode,
 517			       int x, int y,
 518			       struct drm_framebuffer *old_fb)
 519{
 520	struct drm_device *dev = crtc->dev;
 521	struct qxl_device *qdev = dev->dev_private;
 522	struct qxl_mode *m = (void *)mode->private;
 523	struct qxl_framebuffer *qfb;
 524	struct qxl_bo *bo, *old_bo = NULL;
 525	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 526	uint32_t width, height, base_offset;
 527	bool recreate_primary = false;
 528	int ret;
 529	int surf_id;
 530	if (!crtc->primary->fb) {
 531		DRM_DEBUG_KMS("No FB bound\n");
 532		return 0;
 533	}
 534
 535	if (old_fb) {
 536		qfb = to_qxl_framebuffer(old_fb);
 537		old_bo = gem_to_qxl_bo(qfb->obj);
 538	}
 539	qfb = to_qxl_framebuffer(crtc->primary->fb);
 540	bo = gem_to_qxl_bo(qfb->obj);
 541	if (!m)
 542		/* and do we care? */
 543		DRM_DEBUG("%dx%d: not a native mode\n", x, y);
 544	else
 545		DRM_DEBUG("%dx%d: qxl id %d\n",
 546			  mode->hdisplay, mode->vdisplay, m->id);
 547	DRM_DEBUG("+%d+%d (%d,%d) => (%d,%d)\n",
 548		  x, y,
 549		  mode->hdisplay, mode->vdisplay,
 550		  adjusted_mode->hdisplay,
 551		  adjusted_mode->vdisplay);
 552
 553	if (qcrtc->index == 0)
 554		recreate_primary = true;
 555
 556	width = mode->hdisplay;
 557	height = mode->vdisplay;
 558	base_offset = 0;
 559
 560	ret = qxl_bo_reserve(bo, false);
 561	if (ret != 0)
 562		return ret;
 563	ret = qxl_bo_pin(bo, bo->type, NULL);
 564	if (ret != 0) {
 565		qxl_bo_unreserve(bo);
 566		return -EINVAL;
 567	}
 568	qxl_bo_unreserve(bo);
 569	if (recreate_primary) {
 570		qxl_io_destroy_primary(qdev);
 571		qxl_io_log(qdev,
 572			   "recreate primary: %dx%d (was %dx%d,%d,%d)\n",
 573			   width, height, bo->surf.width,
 574			   bo->surf.height, bo->surf.stride, bo->surf.format);
 575		qxl_io_create_primary(qdev, base_offset, bo);
 576		bo->is_primary = true;
 577		surf_id = 0;
 578	} else {
 579		surf_id = bo->surface_id;
 580	}
 581
 582	if (old_bo && old_bo != bo) {
 583		old_bo->is_primary = false;
 584		ret = qxl_bo_reserve(old_bo, false);
 585		qxl_bo_unpin(old_bo);
 586		qxl_bo_unreserve(old_bo);
 587	}
 588
 589	qxl_monitors_config_set(qdev, qcrtc->index, x, y,
 590				mode->hdisplay,
 591				mode->vdisplay, surf_id);
 592	return 0;
 593}
 594
 595static void qxl_crtc_prepare(struct drm_crtc *crtc)
 596{
 597	DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
 598		  crtc->mode.hdisplay, crtc->mode.vdisplay,
 599		  crtc->x, crtc->y, crtc->enabled);
 600}
 601
 602static void qxl_crtc_commit(struct drm_crtc *crtc)
 603{
 604	DRM_DEBUG("\n");
 605}
 606
 607static void qxl_crtc_disable(struct drm_crtc *crtc)
 608{
 609	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
 610	struct drm_device *dev = crtc->dev;
 611	struct qxl_device *qdev = dev->dev_private;
 612	if (crtc->primary->fb) {
 613		struct qxl_framebuffer *qfb = to_qxl_framebuffer(crtc->primary->fb);
 614		struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 615		int ret;
 616		ret = qxl_bo_reserve(bo, false);
 617		qxl_bo_unpin(bo);
 618		qxl_bo_unreserve(bo);
 619		crtc->primary->fb = NULL;
 620	}
 621
 622	qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
 623
 624	qxl_send_monitors_config(qdev);
 625}
 626
 627static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 628	.dpms = qxl_crtc_dpms,
 629	.disable = qxl_crtc_disable,
 630	.mode_fixup = qxl_crtc_mode_fixup,
 631	.mode_set = qxl_crtc_mode_set,
 632	.prepare = qxl_crtc_prepare,
 633	.commit = qxl_crtc_commit,
 634};
 635
 636static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 637{
 638	struct qxl_crtc *qxl_crtc;
 639
 640	qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 641	if (!qxl_crtc)
 642		return -ENOMEM;
 643
 644	drm_crtc_init(dev, &qxl_crtc->base, &qxl_crtc_funcs);
 645	qxl_crtc->index = crtc_id;
 646	drm_mode_crtc_set_gamma_size(&qxl_crtc->base, 256);
 647	drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 648	return 0;
 649}
 650
 651static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
 652{
 653	DRM_DEBUG("\n");
 654}
 655
 656static bool qxl_enc_mode_fixup(struct drm_encoder *encoder,
 657			       const struct drm_display_mode *mode,
 658			       struct drm_display_mode *adjusted_mode)
 659{
 660	DRM_DEBUG("\n");
 661	return true;
 662}
 663
 664static void qxl_enc_prepare(struct drm_encoder *encoder)
 665{
 666	DRM_DEBUG("\n");
 667}
 668
 669static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
 670		struct drm_encoder *encoder)
 671{
 672	int i;
 673	struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
 674	struct qxl_head *head;
 675	struct drm_display_mode *mode;
 676
 677	BUG_ON(!encoder);
 678	/* TODO: ugly, do better */
 679	i = output->index;
 680	if (!qdev->monitors_config ||
 681	    qdev->monitors_config->max_allowed <= i) {
 682		DRM_ERROR(
 683		"head number too large or missing monitors config: %p, %d",
 684		qdev->monitors_config,
 685		qdev->monitors_config ?
 686			qdev->monitors_config->max_allowed : -1);
 687		return;
 688	}
 689	if (!encoder->crtc) {
 690		DRM_ERROR("missing crtc on encoder %p\n", encoder);
 691		return;
 692	}
 693	if (i != 0)
 694		DRM_DEBUG("missing for multiple monitors: no head holes\n");
 695	head = &qdev->monitors_config->heads[i];
 696	head->id = i;
 697	if (encoder->crtc->enabled) {
 698		mode = &encoder->crtc->mode;
 699		head->width = mode->hdisplay;
 700		head->height = mode->vdisplay;
 701		head->x = encoder->crtc->x;
 702		head->y = encoder->crtc->y;
 703		if (qdev->monitors_config->count < i + 1)
 704			qdev->monitors_config->count = i + 1;
 705	} else {
 706		head->width = 0;
 707		head->height = 0;
 708		head->x = 0;
 709		head->y = 0;
 710	}
 711	DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
 712		      i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
 713	head->flags = 0;
 714	/* TODO - somewhere else to call this for multiple monitors
 715	 * (config_commit?) */
 716	qxl_send_monitors_config(qdev);
 717}
 718
 719static void qxl_enc_commit(struct drm_encoder *encoder)
 720{
 721	struct qxl_device *qdev = encoder->dev->dev_private;
 722
 723	qxl_write_monitors_config_for_encoder(qdev, encoder);
 724	DRM_DEBUG("\n");
 725}
 726
 727static void qxl_enc_mode_set(struct drm_encoder *encoder,
 728				struct drm_display_mode *mode,
 729				struct drm_display_mode *adjusted_mode)
 730{
 731	DRM_DEBUG("\n");
 732}
 733
 734static int qxl_conn_get_modes(struct drm_connector *connector)
 735{
 736	int ret = 0;
 737	struct qxl_device *qdev = connector->dev->dev_private;
 738	unsigned pwidth = 1024;
 739	unsigned pheight = 768;
 740
 741	DRM_DEBUG_KMS("monitors_config=%p\n", qdev->monitors_config);
 742	/* TODO: what should we do here? only show the configured modes for the
 743	 * device, or allow the full list, or both? */
 744	if (qdev->monitors_config && qdev->monitors_config->count) {
 745		ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
 746		if (ret < 0)
 747			return ret;
 748	}
 749	ret += qxl_add_common_modes(connector, pwidth, pheight);
 750	return ret;
 751}
 752
 753static int qxl_conn_mode_valid(struct drm_connector *connector,
 754			       struct drm_display_mode *mode)
 755{
 756	/* TODO: is this called for user defined modes? (xrandr --add-mode)
 757	 * TODO: check that the mode fits in the framebuffer */
 758	DRM_DEBUG("%s: %dx%d status=%d\n", mode->name, mode->hdisplay,
 759		  mode->vdisplay, mode->status);
 760	return MODE_OK;
 761}
 762
 763static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
 764{
 765	struct qxl_output *qxl_output =
 766		drm_connector_to_qxl_output(connector);
 767
 768	DRM_DEBUG("\n");
 769	return &qxl_output->enc;
 770}
 771
 772
 773static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
 774	.dpms = qxl_enc_dpms,
 775	.mode_fixup = qxl_enc_mode_fixup,
 776	.prepare = qxl_enc_prepare,
 777	.mode_set = qxl_enc_mode_set,
 778	.commit = qxl_enc_commit,
 779};
 780
 781static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
 782	.get_modes = qxl_conn_get_modes,
 783	.mode_valid = qxl_conn_mode_valid,
 784	.best_encoder = qxl_best_encoder,
 785};
 786
 787static void qxl_conn_save(struct drm_connector *connector)
 788{
 789	DRM_DEBUG("\n");
 790}
 791
 792static void qxl_conn_restore(struct drm_connector *connector)
 793{
 794	DRM_DEBUG("\n");
 795}
 796
 797static enum drm_connector_status qxl_conn_detect(
 798			struct drm_connector *connector,
 799			bool force)
 800{
 801	struct qxl_output *output =
 802		drm_connector_to_qxl_output(connector);
 803	struct drm_device *ddev = connector->dev;
 804	struct qxl_device *qdev = ddev->dev_private;
 805	int connected;
 806
 807	/* The first monitor is always connected */
 808	connected = (output->index == 0) ||
 809		    (qdev->client_monitors_config &&
 810		     qdev->client_monitors_config->count > output->index &&
 811		     qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]));
 812
 813	DRM_DEBUG("#%d connected: %d\n", output->index, connected);
 814	if (!connected)
 815		qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
 816
 817	return connected ? connector_status_connected
 818			 : connector_status_disconnected;
 819}
 820
 821static int qxl_conn_set_property(struct drm_connector *connector,
 822				   struct drm_property *property,
 823				   uint64_t value)
 824{
 825	DRM_DEBUG("\n");
 826	return 0;
 827}
 828
 829static void qxl_conn_destroy(struct drm_connector *connector)
 830{
 831	struct qxl_output *qxl_output =
 832		drm_connector_to_qxl_output(connector);
 833
 834	drm_sysfs_connector_remove(connector);
 835	drm_connector_cleanup(connector);
 836	kfree(qxl_output);
 837}
 838
 839static const struct drm_connector_funcs qxl_connector_funcs = {
 840	.dpms = drm_helper_connector_dpms,
 841	.save = qxl_conn_save,
 842	.restore = qxl_conn_restore,
 843	.detect = qxl_conn_detect,
 844	.fill_modes = drm_helper_probe_single_connector_modes,
 845	.set_property = qxl_conn_set_property,
 846	.destroy = qxl_conn_destroy,
 847};
 848
 849static void qxl_enc_destroy(struct drm_encoder *encoder)
 850{
 851	drm_encoder_cleanup(encoder);
 852}
 853
 854static const struct drm_encoder_funcs qxl_enc_funcs = {
 855	.destroy = qxl_enc_destroy,
 856};
 857
 858static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
 859{
 860	if (qdev->hotplug_mode_update_property)
 861		return 0;
 862
 863	qdev->hotplug_mode_update_property =
 864		drm_property_create_range(qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
 865					  "hotplug_mode_update", 0, 1);
 866
 867	return 0;
 868}
 869
 870static int qdev_output_init(struct drm_device *dev, int num_output)
 871{
 872	struct qxl_device *qdev = dev->dev_private;
 873	struct qxl_output *qxl_output;
 874	struct drm_connector *connector;
 875	struct drm_encoder *encoder;
 876
 877	qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
 878	if (!qxl_output)
 879		return -ENOMEM;
 880
 881	qxl_output->index = num_output;
 882
 883	connector = &qxl_output->base;
 884	encoder = &qxl_output->enc;
 885	drm_connector_init(dev, &qxl_output->base,
 886			   &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
 887
 888	drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
 889			 DRM_MODE_ENCODER_VIRTUAL);
 890
 891	/* we get HPD via client monitors config */
 892	connector->polled = DRM_CONNECTOR_POLL_HPD;
 893	encoder->possible_crtcs = 1 << num_output;
 894	drm_mode_connector_attach_encoder(&qxl_output->base,
 895					  &qxl_output->enc);
 896	drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
 897	drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
 898
 899	drm_object_attach_property(&connector->base,
 900				   qdev->hotplug_mode_update_property, 0);
 901	drm_sysfs_connector_add(connector);
 902	return 0;
 903}
 904
 905static struct drm_framebuffer *
 906qxl_user_framebuffer_create(struct drm_device *dev,
 907			    struct drm_file *file_priv,
 908			    struct drm_mode_fb_cmd2 *mode_cmd)
 909{
 910	struct drm_gem_object *obj;
 911	struct qxl_framebuffer *qxl_fb;
 912	int ret;
 913
 914	obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
 915
 916	qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
 917	if (qxl_fb == NULL)
 918		return NULL;
 919
 920	ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj);
 921	if (ret) {
 922		kfree(qxl_fb);
 923		drm_gem_object_unreference_unlocked(obj);
 924		return NULL;
 925	}
 926
 927	return &qxl_fb->base;
 928}
 929
 930static const struct drm_mode_config_funcs qxl_mode_funcs = {
 931	.fb_create = qxl_user_framebuffer_create,
 932};
 933
 934int qxl_create_monitors_object(struct qxl_device *qdev)
 935{
 936	int ret;
 937	struct drm_gem_object *gobj;
 938	int max_allowed = qxl_num_crtc;
 939	int monitors_config_size = sizeof(struct qxl_monitors_config) +
 940		max_allowed * sizeof(struct qxl_head);
 941
 942	ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
 943				    QXL_GEM_DOMAIN_VRAM,
 944				    false, false, NULL, &gobj);
 945	if (ret) {
 946		DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
 947		return -ENOMEM;
 948	}
 949	qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
 950
 951	ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
 952	if (ret)
 953		return ret;
 954
 955	ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
 956	if (ret) {
 957		qxl_bo_unreserve(qdev->monitors_config_bo);
 958		return ret;
 959	}
 960
 961	qxl_bo_unreserve(qdev->monitors_config_bo);
 962
 963	qxl_bo_kmap(qdev->monitors_config_bo, NULL);
 964
 965	qdev->monitors_config = qdev->monitors_config_bo->kptr;
 966	qdev->ram_header->monitors_config =
 967		qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
 968
 969	memset(qdev->monitors_config, 0, monitors_config_size);
 970	qdev->monitors_config->max_allowed = max_allowed;
 971	return 0;
 972}
 973
 974int qxl_destroy_monitors_object(struct qxl_device *qdev)
 975{
 976	int ret;
 977
 978	qdev->monitors_config = NULL;
 979	qdev->ram_header->monitors_config = 0;
 980
 981	qxl_bo_kunmap(qdev->monitors_config_bo);
 982	ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
 983	if (ret)
 984		return ret;
 985
 986	qxl_bo_unpin(qdev->monitors_config_bo);
 987	qxl_bo_unreserve(qdev->monitors_config_bo);
 988
 989	qxl_bo_unref(&qdev->monitors_config_bo);
 990	return 0;
 991}
 992
 993int qxl_modeset_init(struct qxl_device *qdev)
 994{
 995	int i;
 996	int ret;
 997
 998	drm_mode_config_init(qdev->ddev);
 999
1000	ret = qxl_create_monitors_object(qdev);
1001	if (ret)
1002		return ret;
1003
1004	qdev->ddev->mode_config.funcs = (void *)&qxl_mode_funcs;
1005
1006	/* modes will be validated against the framebuffer size */
1007	qdev->ddev->mode_config.min_width = 320;
1008	qdev->ddev->mode_config.min_height = 200;
1009	qdev->ddev->mode_config.max_width = 8192;
1010	qdev->ddev->mode_config.max_height = 8192;
1011
1012	qdev->ddev->mode_config.fb_base = qdev->vram_base;
1013
1014	qxl_mode_create_hotplug_mode_update_property(qdev);
1015
1016	for (i = 0 ; i < qxl_num_crtc; ++i) {
1017		qdev_crtc_init(qdev->ddev, i);
1018		qdev_output_init(qdev->ddev, i);
1019	}
1020
1021	qdev->mode_info.mode_config_initialized = true;
1022
1023	/* primary surface must be created by this point, to allow
1024	 * issuing command queue commands and having them read by
1025	 * spice server. */
1026	qxl_fbdev_init(qdev);
1027	return 0;
1028}
1029
1030void qxl_modeset_fini(struct qxl_device *qdev)
1031{
1032	qxl_fbdev_fini(qdev);
1033
1034	qxl_destroy_monitors_object(qdev);
1035	if (qdev->mode_info.mode_config_initialized) {
1036		drm_mode_config_cleanup(qdev->ddev);
1037		qdev->mode_info.mode_config_initialized = false;
1038	}
1039}