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[deliverable/linux.git] / drivers / gpu / drm / qxl / qxl_display.c
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 #include <drm/drm_plane_helper.h>
33
34 static bool qxl_head_enabled(struct qxl_head *head)
35 {
36 return head->width && head->height;
37 }
38
39 void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count)
40 {
41 if (qdev->client_monitors_config &&
42 count > qdev->client_monitors_config->count) {
43 kfree(qdev->client_monitors_config);
44 qdev->client_monitors_config = NULL;
45 }
46 if (!qdev->client_monitors_config) {
47 qdev->client_monitors_config = kzalloc(
48 sizeof(struct qxl_monitors_config) +
49 sizeof(struct qxl_head) * count, GFP_KERNEL);
50 if (!qdev->client_monitors_config) {
51 qxl_io_log(qdev,
52 "%s: allocation failure for %u heads\n",
53 __func__, count);
54 return;
55 }
56 }
57 qdev->client_monitors_config->count = count;
58 }
59
60 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
61 {
62 int i;
63 int num_monitors;
64 uint32_t crc;
65
66 num_monitors = qdev->rom->client_monitors_config.count;
67 crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
68 sizeof(qdev->rom->client_monitors_config));
69 if (crc != qdev->rom->client_monitors_config_crc) {
70 qxl_io_log(qdev, "crc mismatch: have %X (%zd) != %X\n", crc,
71 sizeof(qdev->rom->client_monitors_config),
72 qdev->rom->client_monitors_config_crc);
73 return 1;
74 }
75 if (num_monitors > qdev->monitors_config->max_allowed) {
76 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
77 qdev->monitors_config->max_allowed, num_monitors);
78 num_monitors = qdev->monitors_config->max_allowed;
79 } else {
80 num_monitors = qdev->rom->client_monitors_config.count;
81 }
82 qxl_alloc_client_monitors_config(qdev, num_monitors);
83 /* we copy max from the client but it isn't used */
84 qdev->client_monitors_config->max_allowed =
85 qdev->monitors_config->max_allowed;
86 for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
87 struct qxl_urect *c_rect =
88 &qdev->rom->client_monitors_config.heads[i];
89 struct qxl_head *client_head =
90 &qdev->client_monitors_config->heads[i];
91 client_head->x = c_rect->left;
92 client_head->y = c_rect->top;
93 client_head->width = c_rect->right - c_rect->left;
94 client_head->height = c_rect->bottom - c_rect->top;
95 client_head->surface_id = 0;
96 client_head->id = i;
97 client_head->flags = 0;
98 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
99 client_head->x, client_head->y);
100 }
101 return 0;
102 }
103
104 static void qxl_update_offset_props(struct qxl_device *qdev)
105 {
106 struct drm_device *dev = qdev->ddev;
107 struct drm_connector *connector;
108 struct qxl_output *output;
109 struct qxl_head *head;
110
111 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
112 output = drm_connector_to_qxl_output(connector);
113
114 head = &qdev->client_monitors_config->heads[output->index];
115
116 drm_object_property_set_value(&connector->base,
117 dev->mode_config.suggested_x_property, head->x);
118 drm_object_property_set_value(&connector->base,
119 dev->mode_config.suggested_y_property, head->y);
120 }
121 }
122
123 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
124 {
125
126 struct drm_device *dev = qdev->ddev;
127 while (qxl_display_copy_rom_client_monitors_config(qdev)) {
128 qxl_io_log(qdev, "failed crc check for client_monitors_config,"
129 " retrying\n");
130 }
131
132 drm_modeset_lock_all(dev);
133 qxl_update_offset_props(qdev);
134 drm_modeset_unlock_all(dev);
135 if (!drm_helper_hpd_irq_event(qdev->ddev)) {
136 /* notify that the monitor configuration changed, to
137 adjust at the arbitrary resolution */
138 drm_kms_helper_hotplug_event(qdev->ddev);
139 }
140 }
141
142 static int qxl_add_monitors_config_modes(struct drm_connector *connector,
143 unsigned *pwidth,
144 unsigned *pheight)
145 {
146 struct drm_device *dev = connector->dev;
147 struct qxl_device *qdev = dev->dev_private;
148 struct qxl_output *output = drm_connector_to_qxl_output(connector);
149 int h = output->index;
150 struct drm_display_mode *mode = NULL;
151 struct qxl_head *head;
152
153 if (!qdev->client_monitors_config)
154 return 0;
155 head = &qdev->client_monitors_config->heads[h];
156
157 mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
158 false);
159 mode->type |= DRM_MODE_TYPE_PREFERRED;
160 *pwidth = head->width;
161 *pheight = head->height;
162 drm_mode_probed_add(connector, mode);
163 /* remember the last custom size for mode validation */
164 qdev->monitors_config_width = mode->hdisplay;
165 qdev->monitors_config_height = mode->vdisplay;
166 return 1;
167 }
168
169 static struct mode_size {
170 int w;
171 int h;
172 } common_modes[] = {
173 { 640, 480},
174 { 720, 480},
175 { 800, 600},
176 { 848, 480},
177 {1024, 768},
178 {1152, 768},
179 {1280, 720},
180 {1280, 800},
181 {1280, 854},
182 {1280, 960},
183 {1280, 1024},
184 {1440, 900},
185 {1400, 1050},
186 {1680, 1050},
187 {1600, 1200},
188 {1920, 1080},
189 {1920, 1200}
190 };
191
192 static int qxl_add_common_modes(struct drm_connector *connector,
193 unsigned pwidth,
194 unsigned pheight)
195 {
196 struct drm_device *dev = connector->dev;
197 struct drm_display_mode *mode = NULL;
198 int i;
199 for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
200 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
201 60, false, false, false);
202 if (common_modes[i].w == pwidth && common_modes[i].h == pheight)
203 mode->type |= DRM_MODE_TYPE_PREFERRED;
204 drm_mode_probed_add(connector, mode);
205 }
206 return i - 1;
207 }
208
209 static void qxl_crtc_destroy(struct drm_crtc *crtc)
210 {
211 struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
212
213 drm_crtc_cleanup(crtc);
214 kfree(qxl_crtc);
215 }
216
217 static int qxl_crtc_page_flip(struct drm_crtc *crtc,
218 struct drm_framebuffer *fb,
219 struct drm_pending_vblank_event *event,
220 uint32_t page_flip_flags)
221 {
222 struct drm_device *dev = crtc->dev;
223 struct qxl_device *qdev = dev->dev_private;
224 struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
225 struct qxl_framebuffer *qfb_src = to_qxl_framebuffer(fb);
226 struct qxl_framebuffer *qfb_old = to_qxl_framebuffer(crtc->primary->fb);
227 struct qxl_bo *bo_old = gem_to_qxl_bo(qfb_old->obj);
228 struct qxl_bo *bo = gem_to_qxl_bo(qfb_src->obj);
229 unsigned long flags;
230 struct drm_clip_rect norect = {
231 .x1 = 0,
232 .y1 = 0,
233 .x2 = fb->width,
234 .y2 = fb->height
235 };
236 int inc = 1;
237 int one_clip_rect = 1;
238 int ret = 0;
239
240 crtc->primary->fb = fb;
241 bo_old->is_primary = false;
242 bo->is_primary = true;
243
244 ret = qxl_bo_reserve(bo, false);
245 if (ret)
246 return ret;
247
248 qxl_draw_dirty_fb(qdev, qfb_src, bo, 0, 0,
249 &norect, one_clip_rect, inc);
250
251 drm_vblank_get(dev, qcrtc->index);
252
253 if (event) {
254 spin_lock_irqsave(&dev->event_lock, flags);
255 drm_send_vblank_event(dev, qcrtc->index, event);
256 spin_unlock_irqrestore(&dev->event_lock, flags);
257 }
258 drm_vblank_put(dev, qcrtc->index);
259
260 qxl_bo_unreserve(bo);
261
262 return 0;
263 }
264
265 static int
266 qxl_hide_cursor(struct qxl_device *qdev)
267 {
268 struct qxl_release *release;
269 struct qxl_cursor_cmd *cmd;
270 int ret;
271
272 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
273 &release, NULL);
274 if (ret)
275 return ret;
276
277 ret = qxl_release_reserve_list(release, true);
278 if (ret) {
279 qxl_release_free(qdev, release);
280 return ret;
281 }
282
283 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
284 cmd->type = QXL_CURSOR_HIDE;
285 qxl_release_unmap(qdev, release, &cmd->release_info);
286
287 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
288 qxl_release_fence_buffer_objects(release);
289 return 0;
290 }
291
292 static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
293 struct drm_file *file_priv,
294 uint32_t handle,
295 uint32_t width,
296 uint32_t height, int32_t hot_x, int32_t hot_y)
297 {
298 struct drm_device *dev = crtc->dev;
299 struct qxl_device *qdev = dev->dev_private;
300 struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
301 struct drm_gem_object *obj;
302 struct qxl_cursor *cursor;
303 struct qxl_cursor_cmd *cmd;
304 struct qxl_bo *cursor_bo, *user_bo;
305 struct qxl_release *release;
306 void *user_ptr;
307
308 int size = 64*64*4;
309 int ret = 0;
310 if (!handle)
311 return qxl_hide_cursor(qdev);
312
313 obj = drm_gem_object_lookup(crtc->dev, file_priv, handle);
314 if (!obj) {
315 DRM_ERROR("cannot find cursor object\n");
316 return -ENOENT;
317 }
318
319 user_bo = gem_to_qxl_bo(obj);
320
321 ret = qxl_bo_reserve(user_bo, false);
322 if (ret)
323 goto out_unref;
324
325 ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
326 qxl_bo_unreserve(user_bo);
327 if (ret)
328 goto out_unref;
329
330 ret = qxl_bo_kmap(user_bo, &user_ptr);
331 if (ret)
332 goto out_unpin;
333
334 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
335 QXL_RELEASE_CURSOR_CMD,
336 &release, NULL);
337 if (ret)
338 goto out_kunmap;
339
340 ret = qxl_alloc_bo_reserved(qdev, release, sizeof(struct qxl_cursor) + size,
341 &cursor_bo);
342 if (ret)
343 goto out_free_release;
344
345 ret = qxl_release_reserve_list(release, false);
346 if (ret)
347 goto out_free_bo;
348
349 ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
350 if (ret)
351 goto out_backoff;
352
353 cursor->header.unique = 0;
354 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
355 cursor->header.width = 64;
356 cursor->header.height = 64;
357 cursor->header.hot_spot_x = hot_x;
358 cursor->header.hot_spot_y = hot_y;
359 cursor->data_size = size;
360 cursor->chunk.next_chunk = 0;
361 cursor->chunk.prev_chunk = 0;
362 cursor->chunk.data_size = size;
363
364 memcpy(cursor->chunk.data, user_ptr, size);
365
366 qxl_bo_kunmap(cursor_bo);
367
368 qxl_bo_kunmap(user_bo);
369
370 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
371 cmd->type = QXL_CURSOR_SET;
372 cmd->u.set.position.x = qcrtc->cur_x;
373 cmd->u.set.position.y = qcrtc->cur_y;
374
375 cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
376
377 cmd->u.set.visible = 1;
378 qxl_release_unmap(qdev, release, &cmd->release_info);
379
380 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
381 qxl_release_fence_buffer_objects(release);
382
383 /* finish with the userspace bo */
384 ret = qxl_bo_reserve(user_bo, false);
385 if (!ret) {
386 qxl_bo_unpin(user_bo);
387 qxl_bo_unreserve(user_bo);
388 }
389 drm_gem_object_unreference_unlocked(obj);
390
391 qxl_bo_unref(&cursor_bo);
392
393 return ret;
394
395 out_backoff:
396 qxl_release_backoff_reserve_list(release);
397 out_free_bo:
398 qxl_bo_unref(&cursor_bo);
399 out_free_release:
400 qxl_release_free(qdev, release);
401 out_kunmap:
402 qxl_bo_kunmap(user_bo);
403 out_unpin:
404 qxl_bo_unpin(user_bo);
405 out_unref:
406 drm_gem_object_unreference_unlocked(obj);
407 return ret;
408 }
409
410 static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
411 int x, int y)
412 {
413 struct drm_device *dev = crtc->dev;
414 struct qxl_device *qdev = dev->dev_private;
415 struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
416 struct qxl_release *release;
417 struct qxl_cursor_cmd *cmd;
418 int ret;
419
420 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
421 &release, NULL);
422 if (ret)
423 return ret;
424
425 ret = qxl_release_reserve_list(release, true);
426 if (ret) {
427 qxl_release_free(qdev, release);
428 return ret;
429 }
430
431 qcrtc->cur_x = x;
432 qcrtc->cur_y = y;
433
434 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
435 cmd->type = QXL_CURSOR_MOVE;
436 cmd->u.position.x = qcrtc->cur_x;
437 cmd->u.position.y = qcrtc->cur_y;
438 qxl_release_unmap(qdev, release, &cmd->release_info);
439
440 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
441 qxl_release_fence_buffer_objects(release);
442
443 return 0;
444 }
445
446
447 static const struct drm_crtc_funcs qxl_crtc_funcs = {
448 .cursor_set2 = qxl_crtc_cursor_set2,
449 .cursor_move = qxl_crtc_cursor_move,
450 .set_config = drm_crtc_helper_set_config,
451 .destroy = qxl_crtc_destroy,
452 .page_flip = qxl_crtc_page_flip,
453 };
454
455 static void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
456 {
457 struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
458
459 if (qxl_fb->obj)
460 drm_gem_object_unreference_unlocked(qxl_fb->obj);
461 drm_framebuffer_cleanup(fb);
462 kfree(qxl_fb);
463 }
464
465 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
466 struct drm_file *file_priv,
467 unsigned flags, unsigned color,
468 struct drm_clip_rect *clips,
469 unsigned num_clips)
470 {
471 /* TODO: vmwgfx where this was cribbed from had locking. Why? */
472 struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
473 struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
474 struct drm_clip_rect norect;
475 struct qxl_bo *qobj;
476 int inc = 1;
477
478 drm_modeset_lock_all(fb->dev);
479
480 qobj = gem_to_qxl_bo(qxl_fb->obj);
481 /* if we aren't primary surface ignore this */
482 if (!qobj->is_primary) {
483 drm_modeset_unlock_all(fb->dev);
484 return 0;
485 }
486
487 if (!num_clips) {
488 num_clips = 1;
489 clips = &norect;
490 norect.x1 = norect.y1 = 0;
491 norect.x2 = fb->width;
492 norect.y2 = fb->height;
493 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
494 num_clips /= 2;
495 inc = 2; /* skip source rects */
496 }
497
498 qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
499 clips, num_clips, inc);
500
501 drm_modeset_unlock_all(fb->dev);
502
503 return 0;
504 }
505
506 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
507 .destroy = qxl_user_framebuffer_destroy,
508 .dirty = qxl_framebuffer_surface_dirty,
509 /* TODO?
510 * .create_handle = qxl_user_framebuffer_create_handle, */
511 };
512
513 int
514 qxl_framebuffer_init(struct drm_device *dev,
515 struct qxl_framebuffer *qfb,
516 struct drm_mode_fb_cmd2 *mode_cmd,
517 struct drm_gem_object *obj)
518 {
519 int ret;
520
521 qfb->obj = obj;
522 ret = drm_framebuffer_init(dev, &qfb->base, &qxl_fb_funcs);
523 if (ret) {
524 qfb->obj = NULL;
525 return ret;
526 }
527 drm_helper_mode_fill_fb_struct(&qfb->base, mode_cmd);
528 return 0;
529 }
530
531 static void qxl_crtc_dpms(struct drm_crtc *crtc, int mode)
532 {
533 }
534
535 static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
536 const struct drm_display_mode *mode,
537 struct drm_display_mode *adjusted_mode)
538 {
539 struct drm_device *dev = crtc->dev;
540 struct qxl_device *qdev = dev->dev_private;
541
542 qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
543 __func__,
544 mode->hdisplay, mode->vdisplay,
545 adjusted_mode->hdisplay,
546 adjusted_mode->vdisplay);
547 return true;
548 }
549
550 void
551 qxl_send_monitors_config(struct qxl_device *qdev)
552 {
553 int i;
554
555 BUG_ON(!qdev->ram_header->monitors_config);
556
557 if (qdev->monitors_config->count == 0) {
558 qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
559 return;
560 }
561 for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
562 struct qxl_head *head = &qdev->monitors_config->heads[i];
563
564 if (head->y > 8192 || head->x > 8192 ||
565 head->width > 8192 || head->height > 8192) {
566 DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
567 i, head->width, head->height,
568 head->x, head->y);
569 return;
570 }
571 }
572 qxl_io_monitors_config(qdev);
573 }
574
575 static void qxl_monitors_config_set(struct qxl_device *qdev,
576 int index,
577 unsigned x, unsigned y,
578 unsigned width, unsigned height,
579 unsigned surf_id)
580 {
581 DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
582 qdev->monitors_config->heads[index].x = x;
583 qdev->monitors_config->heads[index].y = y;
584 qdev->monitors_config->heads[index].width = width;
585 qdev->monitors_config->heads[index].height = height;
586 qdev->monitors_config->heads[index].surface_id = surf_id;
587
588 }
589
590 static int qxl_crtc_mode_set(struct drm_crtc *crtc,
591 struct drm_display_mode *mode,
592 struct drm_display_mode *adjusted_mode,
593 int x, int y,
594 struct drm_framebuffer *old_fb)
595 {
596 struct drm_device *dev = crtc->dev;
597 struct qxl_device *qdev = dev->dev_private;
598 struct qxl_framebuffer *qfb;
599 struct qxl_bo *bo, *old_bo = NULL;
600 struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
601 bool recreate_primary = false;
602 int ret;
603 int surf_id;
604 if (!crtc->primary->fb) {
605 DRM_DEBUG_KMS("No FB bound\n");
606 return 0;
607 }
608
609 if (old_fb) {
610 qfb = to_qxl_framebuffer(old_fb);
611 old_bo = gem_to_qxl_bo(qfb->obj);
612 }
613 qfb = to_qxl_framebuffer(crtc->primary->fb);
614 bo = gem_to_qxl_bo(qfb->obj);
615 DRM_DEBUG("+%d+%d (%d,%d) => (%d,%d)\n",
616 x, y,
617 mode->hdisplay, mode->vdisplay,
618 adjusted_mode->hdisplay,
619 adjusted_mode->vdisplay);
620
621 if (qcrtc->index == 0)
622 recreate_primary = true;
623
624 if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
625 DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
626 return -EINVAL;
627 }
628
629 ret = qxl_bo_reserve(bo, false);
630 if (ret != 0)
631 return ret;
632 ret = qxl_bo_pin(bo, bo->type, NULL);
633 if (ret != 0) {
634 qxl_bo_unreserve(bo);
635 return -EINVAL;
636 }
637 qxl_bo_unreserve(bo);
638 if (recreate_primary) {
639 qxl_io_destroy_primary(qdev);
640 qxl_io_log(qdev,
641 "recreate primary: %dx%d,%d,%d\n",
642 bo->surf.width, bo->surf.height,
643 bo->surf.stride, bo->surf.format);
644 qxl_io_create_primary(qdev, 0, bo);
645 bo->is_primary = true;
646 }
647
648 if (bo->is_primary) {
649 DRM_DEBUG_KMS("setting surface_id to 0 for primary surface %d on crtc %d\n", bo->surface_id, qcrtc->index);
650 surf_id = 0;
651 } else {
652 surf_id = bo->surface_id;
653 }
654
655 if (old_bo && old_bo != bo) {
656 old_bo->is_primary = false;
657 ret = qxl_bo_reserve(old_bo, false);
658 qxl_bo_unpin(old_bo);
659 qxl_bo_unreserve(old_bo);
660 }
661
662 qxl_monitors_config_set(qdev, qcrtc->index, x, y,
663 mode->hdisplay,
664 mode->vdisplay, surf_id);
665 return 0;
666 }
667
668 static void qxl_crtc_prepare(struct drm_crtc *crtc)
669 {
670 DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
671 crtc->mode.hdisplay, crtc->mode.vdisplay,
672 crtc->x, crtc->y, crtc->enabled);
673 }
674
675 static void qxl_crtc_commit(struct drm_crtc *crtc)
676 {
677 DRM_DEBUG("\n");
678 }
679
680 static void qxl_crtc_disable(struct drm_crtc *crtc)
681 {
682 struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
683 struct drm_device *dev = crtc->dev;
684 struct qxl_device *qdev = dev->dev_private;
685 if (crtc->primary->fb) {
686 struct qxl_framebuffer *qfb = to_qxl_framebuffer(crtc->primary->fb);
687 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
688 int ret;
689 ret = qxl_bo_reserve(bo, false);
690 qxl_bo_unpin(bo);
691 qxl_bo_unreserve(bo);
692 crtc->primary->fb = NULL;
693 }
694
695 qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
696
697 qxl_send_monitors_config(qdev);
698 }
699
700 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
701 .dpms = qxl_crtc_dpms,
702 .disable = qxl_crtc_disable,
703 .mode_fixup = qxl_crtc_mode_fixup,
704 .mode_set = qxl_crtc_mode_set,
705 .prepare = qxl_crtc_prepare,
706 .commit = qxl_crtc_commit,
707 };
708
709 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
710 {
711 struct qxl_crtc *qxl_crtc;
712
713 qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
714 if (!qxl_crtc)
715 return -ENOMEM;
716
717 drm_crtc_init(dev, &qxl_crtc->base, &qxl_crtc_funcs);
718 qxl_crtc->index = crtc_id;
719 drm_mode_crtc_set_gamma_size(&qxl_crtc->base, 256);
720 drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
721 return 0;
722 }
723
724 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
725 {
726 DRM_DEBUG("\n");
727 }
728
729 static bool qxl_enc_mode_fixup(struct drm_encoder *encoder,
730 const struct drm_display_mode *mode,
731 struct drm_display_mode *adjusted_mode)
732 {
733 DRM_DEBUG("\n");
734 return true;
735 }
736
737 static void qxl_enc_prepare(struct drm_encoder *encoder)
738 {
739 DRM_DEBUG("\n");
740 }
741
742 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
743 struct drm_encoder *encoder)
744 {
745 int i;
746 struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
747 struct qxl_head *head;
748 struct drm_display_mode *mode;
749
750 BUG_ON(!encoder);
751 /* TODO: ugly, do better */
752 i = output->index;
753 if (!qdev->monitors_config ||
754 qdev->monitors_config->max_allowed <= i) {
755 DRM_ERROR(
756 "head number too large or missing monitors config: %p, %d",
757 qdev->monitors_config,
758 qdev->monitors_config ?
759 qdev->monitors_config->max_allowed : -1);
760 return;
761 }
762 if (!encoder->crtc) {
763 DRM_ERROR("missing crtc on encoder %p\n", encoder);
764 return;
765 }
766 if (i != 0)
767 DRM_DEBUG("missing for multiple monitors: no head holes\n");
768 head = &qdev->monitors_config->heads[i];
769 head->id = i;
770 if (encoder->crtc->enabled) {
771 mode = &encoder->crtc->mode;
772 head->width = mode->hdisplay;
773 head->height = mode->vdisplay;
774 head->x = encoder->crtc->x;
775 head->y = encoder->crtc->y;
776 if (qdev->monitors_config->count < i + 1)
777 qdev->monitors_config->count = i + 1;
778 } else {
779 head->width = 0;
780 head->height = 0;
781 head->x = 0;
782 head->y = 0;
783 }
784 DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
785 i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
786 head->flags = 0;
787 /* TODO - somewhere else to call this for multiple monitors
788 * (config_commit?) */
789 qxl_send_monitors_config(qdev);
790 }
791
792 static void qxl_enc_commit(struct drm_encoder *encoder)
793 {
794 struct qxl_device *qdev = encoder->dev->dev_private;
795
796 qxl_write_monitors_config_for_encoder(qdev, encoder);
797 DRM_DEBUG("\n");
798 }
799
800 static void qxl_enc_mode_set(struct drm_encoder *encoder,
801 struct drm_display_mode *mode,
802 struct drm_display_mode *adjusted_mode)
803 {
804 DRM_DEBUG("\n");
805 }
806
807 static int qxl_conn_get_modes(struct drm_connector *connector)
808 {
809 int ret = 0;
810 struct qxl_device *qdev = connector->dev->dev_private;
811 unsigned pwidth = 1024;
812 unsigned pheight = 768;
813
814 DRM_DEBUG_KMS("monitors_config=%p\n", qdev->monitors_config);
815 /* TODO: what should we do here? only show the configured modes for the
816 * device, or allow the full list, or both? */
817 if (qdev->monitors_config && qdev->monitors_config->count) {
818 ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
819 if (ret < 0)
820 return ret;
821 }
822 ret += qxl_add_common_modes(connector, pwidth, pheight);
823 return ret;
824 }
825
826 static int qxl_conn_mode_valid(struct drm_connector *connector,
827 struct drm_display_mode *mode)
828 {
829 struct drm_device *ddev = connector->dev;
830 struct qxl_device *qdev = ddev->dev_private;
831 int i;
832
833 /* TODO: is this called for user defined modes? (xrandr --add-mode)
834 * TODO: check that the mode fits in the framebuffer */
835
836 if(qdev->monitors_config_width == mode->hdisplay &&
837 qdev->monitors_config_height == mode->vdisplay)
838 return MODE_OK;
839
840 for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
841 if (common_modes[i].w == mode->hdisplay && common_modes[i].h == mode->vdisplay)
842 return MODE_OK;
843 }
844 return MODE_BAD;
845 }
846
847 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
848 {
849 struct qxl_output *qxl_output =
850 drm_connector_to_qxl_output(connector);
851
852 DRM_DEBUG("\n");
853 return &qxl_output->enc;
854 }
855
856
857 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
858 .dpms = qxl_enc_dpms,
859 .mode_fixup = qxl_enc_mode_fixup,
860 .prepare = qxl_enc_prepare,
861 .mode_set = qxl_enc_mode_set,
862 .commit = qxl_enc_commit,
863 };
864
865 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
866 .get_modes = qxl_conn_get_modes,
867 .mode_valid = qxl_conn_mode_valid,
868 .best_encoder = qxl_best_encoder,
869 };
870
871 static void qxl_conn_save(struct drm_connector *connector)
872 {
873 DRM_DEBUG("\n");
874 }
875
876 static void qxl_conn_restore(struct drm_connector *connector)
877 {
878 DRM_DEBUG("\n");
879 }
880
881 static enum drm_connector_status qxl_conn_detect(
882 struct drm_connector *connector,
883 bool force)
884 {
885 struct qxl_output *output =
886 drm_connector_to_qxl_output(connector);
887 struct drm_device *ddev = connector->dev;
888 struct qxl_device *qdev = ddev->dev_private;
889 bool connected = false;
890
891 /* The first monitor is always connected */
892 if (!qdev->client_monitors_config) {
893 if (output->index == 0)
894 connected = true;
895 } else
896 connected = qdev->client_monitors_config->count > output->index &&
897 qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
898
899 DRM_DEBUG("#%d connected: %d\n", output->index, connected);
900 if (!connected)
901 qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
902
903 return connected ? connector_status_connected
904 : connector_status_disconnected;
905 }
906
907 static int qxl_conn_set_property(struct drm_connector *connector,
908 struct drm_property *property,
909 uint64_t value)
910 {
911 DRM_DEBUG("\n");
912 return 0;
913 }
914
915 static void qxl_conn_destroy(struct drm_connector *connector)
916 {
917 struct qxl_output *qxl_output =
918 drm_connector_to_qxl_output(connector);
919
920 drm_connector_unregister(connector);
921 drm_connector_cleanup(connector);
922 kfree(qxl_output);
923 }
924
925 static const struct drm_connector_funcs qxl_connector_funcs = {
926 .dpms = drm_helper_connector_dpms,
927 .save = qxl_conn_save,
928 .restore = qxl_conn_restore,
929 .detect = qxl_conn_detect,
930 .fill_modes = drm_helper_probe_single_connector_modes_nomerge,
931 .set_property = qxl_conn_set_property,
932 .destroy = qxl_conn_destroy,
933 };
934
935 static void qxl_enc_destroy(struct drm_encoder *encoder)
936 {
937 drm_encoder_cleanup(encoder);
938 }
939
940 static const struct drm_encoder_funcs qxl_enc_funcs = {
941 .destroy = qxl_enc_destroy,
942 };
943
944 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
945 {
946 if (qdev->hotplug_mode_update_property)
947 return 0;
948
949 qdev->hotplug_mode_update_property =
950 drm_property_create_range(qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
951 "hotplug_mode_update", 0, 1);
952
953 return 0;
954 }
955
956 static int qdev_output_init(struct drm_device *dev, int num_output)
957 {
958 struct qxl_device *qdev = dev->dev_private;
959 struct qxl_output *qxl_output;
960 struct drm_connector *connector;
961 struct drm_encoder *encoder;
962
963 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
964 if (!qxl_output)
965 return -ENOMEM;
966
967 qxl_output->index = num_output;
968
969 connector = &qxl_output->base;
970 encoder = &qxl_output->enc;
971 drm_connector_init(dev, &qxl_output->base,
972 &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
973
974 drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
975 DRM_MODE_ENCODER_VIRTUAL);
976
977 /* we get HPD via client monitors config */
978 connector->polled = DRM_CONNECTOR_POLL_HPD;
979 encoder->possible_crtcs = 1 << num_output;
980 drm_mode_connector_attach_encoder(&qxl_output->base,
981 &qxl_output->enc);
982 drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
983 drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
984
985 drm_object_attach_property(&connector->base,
986 qdev->hotplug_mode_update_property, 0);
987 drm_object_attach_property(&connector->base,
988 dev->mode_config.suggested_x_property, 0);
989 drm_object_attach_property(&connector->base,
990 dev->mode_config.suggested_y_property, 0);
991 drm_connector_register(connector);
992 return 0;
993 }
994
995 static struct drm_framebuffer *
996 qxl_user_framebuffer_create(struct drm_device *dev,
997 struct drm_file *file_priv,
998 struct drm_mode_fb_cmd2 *mode_cmd)
999 {
1000 struct drm_gem_object *obj;
1001 struct qxl_framebuffer *qxl_fb;
1002 int ret;
1003
1004 obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
1005
1006 qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
1007 if (qxl_fb == NULL)
1008 return NULL;
1009
1010 ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj);
1011 if (ret) {
1012 kfree(qxl_fb);
1013 drm_gem_object_unreference_unlocked(obj);
1014 return NULL;
1015 }
1016
1017 return &qxl_fb->base;
1018 }
1019
1020 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1021 .fb_create = qxl_user_framebuffer_create,
1022 };
1023
1024 int qxl_create_monitors_object(struct qxl_device *qdev)
1025 {
1026 int ret;
1027 struct drm_gem_object *gobj;
1028 int max_allowed = qxl_num_crtc;
1029 int monitors_config_size = sizeof(struct qxl_monitors_config) +
1030 max_allowed * sizeof(struct qxl_head);
1031
1032 ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1033 QXL_GEM_DOMAIN_VRAM,
1034 false, false, NULL, &gobj);
1035 if (ret) {
1036 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1037 return -ENOMEM;
1038 }
1039 qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1040
1041 ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1042 if (ret)
1043 return ret;
1044
1045 ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
1046 if (ret) {
1047 qxl_bo_unreserve(qdev->monitors_config_bo);
1048 return ret;
1049 }
1050
1051 qxl_bo_unreserve(qdev->monitors_config_bo);
1052
1053 qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1054
1055 qdev->monitors_config = qdev->monitors_config_bo->kptr;
1056 qdev->ram_header->monitors_config =
1057 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1058
1059 memset(qdev->monitors_config, 0, monitors_config_size);
1060 qdev->monitors_config->max_allowed = max_allowed;
1061 return 0;
1062 }
1063
1064 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1065 {
1066 int ret;
1067
1068 qdev->monitors_config = NULL;
1069 qdev->ram_header->monitors_config = 0;
1070
1071 qxl_bo_kunmap(qdev->monitors_config_bo);
1072 ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
1073 if (ret)
1074 return ret;
1075
1076 qxl_bo_unpin(qdev->monitors_config_bo);
1077 qxl_bo_unreserve(qdev->monitors_config_bo);
1078
1079 qxl_bo_unref(&qdev->monitors_config_bo);
1080 return 0;
1081 }
1082
1083 int qxl_modeset_init(struct qxl_device *qdev)
1084 {
1085 int i;
1086 int ret;
1087
1088 drm_mode_config_init(qdev->ddev);
1089
1090 ret = qxl_create_monitors_object(qdev);
1091 if (ret)
1092 return ret;
1093
1094 qdev->ddev->mode_config.funcs = (void *)&qxl_mode_funcs;
1095
1096 /* modes will be validated against the framebuffer size */
1097 qdev->ddev->mode_config.min_width = 320;
1098 qdev->ddev->mode_config.min_height = 200;
1099 qdev->ddev->mode_config.max_width = 8192;
1100 qdev->ddev->mode_config.max_height = 8192;
1101
1102 qdev->ddev->mode_config.fb_base = qdev->vram_base;
1103
1104 drm_mode_create_suggested_offset_properties(qdev->ddev);
1105 qxl_mode_create_hotplug_mode_update_property(qdev);
1106
1107 for (i = 0 ; i < qxl_num_crtc; ++i) {
1108 qdev_crtc_init(qdev->ddev, i);
1109 qdev_output_init(qdev->ddev, i);
1110 }
1111
1112 qdev->mode_info.mode_config_initialized = true;
1113
1114 /* primary surface must be created by this point, to allow
1115 * issuing command queue commands and having them read by
1116 * spice server. */
1117 qxl_fbdev_init(qdev);
1118 return 0;
1119 }
1120
1121 void qxl_modeset_fini(struct qxl_device *qdev)
1122 {
1123 qxl_fbdev_fini(qdev);
1124
1125 qxl_destroy_monitors_object(qdev);
1126 if (qdev->mode_info.mode_config_initialized) {
1127 drm_mode_config_cleanup(qdev->ddev);
1128 qdev->mode_info.mode_config_initialized = false;
1129 }
1130 }
Linux kernel - Deliverables
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