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[mirror_ubuntu-artful-kernel.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 #include <linux/crc32.h>
27 #include <drm/drm_crtc_helper.h>
28 #include <drm/drm_plane_helper.h>
29 #include <drm/drm_atomic_helper.h>
30 #include <drm/drm_atomic.h>
31
32 #include "qxl_drv.h"
33 #include "qxl_object.h"
34
35 static bool qxl_head_enabled(struct qxl_head *head)
36 {
37 return head->width && head->height;
38 }
39
40 static void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count)
41 {
42 if (qdev->client_monitors_config &&
43 count > qdev->client_monitors_config->count) {
44 kfree(qdev->client_monitors_config);
45 qdev->client_monitors_config = NULL;
46 }
47 if (!qdev->client_monitors_config) {
48 qdev->client_monitors_config = kzalloc(
49 sizeof(struct qxl_monitors_config) +
50 sizeof(struct qxl_head) * count, GFP_KERNEL);
51 if (!qdev->client_monitors_config) {
52 qxl_io_log(qdev,
53 "%s: allocation failure for %u heads\n",
54 __func__, count);
55 return;
56 }
57 }
58 qdev->client_monitors_config->count = count;
59 }
60
61 enum {
62 MONITORS_CONFIG_MODIFIED,
63 MONITORS_CONFIG_UNCHANGED,
64 MONITORS_CONFIG_BAD_CRC,
65 };
66
67 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
68 {
69 int i;
70 int num_monitors;
71 uint32_t crc;
72 int status = MONITORS_CONFIG_UNCHANGED;
73
74 num_monitors = qdev->rom->client_monitors_config.count;
75 crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
76 sizeof(qdev->rom->client_monitors_config));
77 if (crc != qdev->rom->client_monitors_config_crc) {
78 qxl_io_log(qdev, "crc mismatch: have %X (%zd) != %X\n", crc,
79 sizeof(qdev->rom->client_monitors_config),
80 qdev->rom->client_monitors_config_crc);
81 return MONITORS_CONFIG_BAD_CRC;
82 }
83 if (!num_monitors) {
84 DRM_DEBUG_KMS("no client monitors configured\n");
85 return status;
86 }
87 if (num_monitors > qdev->monitors_config->max_allowed) {
88 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
89 qdev->monitors_config->max_allowed, num_monitors);
90 num_monitors = qdev->monitors_config->max_allowed;
91 } else {
92 num_monitors = qdev->rom->client_monitors_config.count;
93 }
94 if (qdev->client_monitors_config
95 && (num_monitors != qdev->client_monitors_config->count)) {
96 status = MONITORS_CONFIG_MODIFIED;
97 }
98 qxl_alloc_client_monitors_config(qdev, num_monitors);
99 /* we copy max from the client but it isn't used */
100 qdev->client_monitors_config->max_allowed =
101 qdev->monitors_config->max_allowed;
102 for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
103 struct qxl_urect *c_rect =
104 &qdev->rom->client_monitors_config.heads[i];
105 struct qxl_head *client_head =
106 &qdev->client_monitors_config->heads[i];
107 if (client_head->x != c_rect->left) {
108 client_head->x = c_rect->left;
109 status = MONITORS_CONFIG_MODIFIED;
110 }
111 if (client_head->y != c_rect->top) {
112 client_head->y = c_rect->top;
113 status = MONITORS_CONFIG_MODIFIED;
114 }
115 if (client_head->width != c_rect->right - c_rect->left) {
116 client_head->width = c_rect->right - c_rect->left;
117 status = MONITORS_CONFIG_MODIFIED;
118 }
119 if (client_head->height != c_rect->bottom - c_rect->top) {
120 client_head->height = c_rect->bottom - c_rect->top;
121 status = MONITORS_CONFIG_MODIFIED;
122 }
123 if (client_head->surface_id != 0) {
124 client_head->surface_id = 0;
125 status = MONITORS_CONFIG_MODIFIED;
126 }
127 if (client_head->id != i) {
128 client_head->id = i;
129 status = MONITORS_CONFIG_MODIFIED;
130 }
131 if (client_head->flags != 0) {
132 client_head->flags = 0;
133 status = MONITORS_CONFIG_MODIFIED;
134 }
135 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
136 client_head->x, client_head->y);
137 }
138
139 return status;
140 }
141
142 static void qxl_update_offset_props(struct qxl_device *qdev)
143 {
144 struct drm_device *dev = &qdev->ddev;
145 struct drm_connector *connector;
146 struct qxl_output *output;
147 struct qxl_head *head;
148
149 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
150 output = drm_connector_to_qxl_output(connector);
151
152 head = &qdev->client_monitors_config->heads[output->index];
153
154 drm_object_property_set_value(&connector->base,
155 dev->mode_config.suggested_x_property, head->x);
156 drm_object_property_set_value(&connector->base,
157 dev->mode_config.suggested_y_property, head->y);
158 }
159 }
160
161 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
162 {
163 struct drm_device *dev = &qdev->ddev;
164 int status, retries;
165
166 for (retries = 0; retries < 10; retries++) {
167 status = qxl_display_copy_rom_client_monitors_config(qdev);
168 if (status != MONITORS_CONFIG_BAD_CRC)
169 break;
170 udelay(5);
171 }
172 if (status == MONITORS_CONFIG_BAD_CRC) {
173 qxl_io_log(qdev, "config: bad crc\n");
174 DRM_DEBUG_KMS("ignoring client monitors config: bad crc");
175 return;
176 }
177 if (status == MONITORS_CONFIG_UNCHANGED) {
178 qxl_io_log(qdev, "config: unchanged\n");
179 DRM_DEBUG_KMS("ignoring client monitors config: unchanged");
180 return;
181 }
182
183 drm_modeset_lock_all(dev);
184 qxl_update_offset_props(qdev);
185 drm_modeset_unlock_all(dev);
186 if (!drm_helper_hpd_irq_event(dev)) {
187 /* notify that the monitor configuration changed, to
188 adjust at the arbitrary resolution */
189 drm_kms_helper_hotplug_event(dev);
190 }
191 }
192
193 static int qxl_add_monitors_config_modes(struct drm_connector *connector,
194 unsigned *pwidth,
195 unsigned *pheight)
196 {
197 struct drm_device *dev = connector->dev;
198 struct qxl_device *qdev = dev->dev_private;
199 struct qxl_output *output = drm_connector_to_qxl_output(connector);
200 int h = output->index;
201 struct drm_display_mode *mode = NULL;
202 struct qxl_head *head;
203
204 if (!qdev->monitors_config)
205 return 0;
206 if (h >= qdev->monitors_config->max_allowed)
207 return 0;
208 if (!qdev->client_monitors_config)
209 return 0;
210 if (h >= qdev->client_monitors_config->count)
211 return 0;
212
213 head = &qdev->client_monitors_config->heads[h];
214 DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height);
215
216 mode = drm_cvt_mode(dev, head->width, head->height, 60, false, false,
217 false);
218 mode->type |= DRM_MODE_TYPE_PREFERRED;
219 mode->hdisplay = head->width;
220 mode->vdisplay = head->height;
221 drm_mode_set_name(mode);
222 *pwidth = head->width;
223 *pheight = head->height;
224 drm_mode_probed_add(connector, mode);
225 /* remember the last custom size for mode validation */
226 qdev->monitors_config_width = mode->hdisplay;
227 qdev->monitors_config_height = mode->vdisplay;
228 return 1;
229 }
230
231 static struct mode_size {
232 int w;
233 int h;
234 } common_modes[] = {
235 { 640, 480},
236 { 720, 480},
237 { 800, 600},
238 { 848, 480},
239 {1024, 768},
240 {1152, 768},
241 {1280, 720},
242 {1280, 800},
243 {1280, 854},
244 {1280, 960},
245 {1280, 1024},
246 {1440, 900},
247 {1400, 1050},
248 {1680, 1050},
249 {1600, 1200},
250 {1920, 1080},
251 {1920, 1200}
252 };
253
254 static int qxl_add_common_modes(struct drm_connector *connector,
255 unsigned pwidth,
256 unsigned pheight)
257 {
258 struct drm_device *dev = connector->dev;
259 struct drm_display_mode *mode = NULL;
260 int i;
261 for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
262 mode = drm_cvt_mode(dev, common_modes[i].w, common_modes[i].h,
263 60, false, false, false);
264 if (common_modes[i].w == pwidth && common_modes[i].h == pheight)
265 mode->type |= DRM_MODE_TYPE_PREFERRED;
266 drm_mode_probed_add(connector, mode);
267 }
268 return i - 1;
269 }
270
271 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc,
272 struct drm_crtc_state *old_crtc_state)
273 {
274 struct drm_device *dev = crtc->dev;
275 struct drm_pending_vblank_event *event;
276 unsigned long flags;
277
278 if (crtc->state && crtc->state->event) {
279 event = crtc->state->event;
280 crtc->state->event = NULL;
281
282 spin_lock_irqsave(&dev->event_lock, flags);
283 drm_crtc_send_vblank_event(crtc, event);
284 spin_unlock_irqrestore(&dev->event_lock, flags);
285 }
286 }
287
288 static void qxl_crtc_destroy(struct drm_crtc *crtc)
289 {
290 struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
291
292 drm_crtc_cleanup(crtc);
293 kfree(qxl_crtc);
294 }
295
296 static const struct drm_crtc_funcs qxl_crtc_funcs = {
297 .set_config = drm_atomic_helper_set_config,
298 .destroy = qxl_crtc_destroy,
299 .page_flip = drm_atomic_helper_page_flip,
300 .reset = drm_atomic_helper_crtc_reset,
301 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
302 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
303 };
304
305 void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
306 {
307 struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
308
309 drm_gem_object_unreference_unlocked(qxl_fb->obj);
310 drm_framebuffer_cleanup(fb);
311 kfree(qxl_fb);
312 }
313
314 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
315 struct drm_file *file_priv,
316 unsigned flags, unsigned color,
317 struct drm_clip_rect *clips,
318 unsigned num_clips)
319 {
320 /* TODO: vmwgfx where this was cribbed from had locking. Why? */
321 struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
322 struct qxl_device *qdev = qxl_fb->base.dev->dev_private;
323 struct drm_clip_rect norect;
324 struct qxl_bo *qobj;
325 int inc = 1;
326
327 drm_modeset_lock_all(fb->dev);
328
329 qobj = gem_to_qxl_bo(qxl_fb->obj);
330 /* if we aren't primary surface ignore this */
331 if (!qobj->is_primary) {
332 drm_modeset_unlock_all(fb->dev);
333 return 0;
334 }
335
336 if (!num_clips) {
337 num_clips = 1;
338 clips = &norect;
339 norect.x1 = norect.y1 = 0;
340 norect.x2 = fb->width;
341 norect.y2 = fb->height;
342 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
343 num_clips /= 2;
344 inc = 2; /* skip source rects */
345 }
346
347 qxl_draw_dirty_fb(qdev, qxl_fb, qobj, flags, color,
348 clips, num_clips, inc);
349
350 drm_modeset_unlock_all(fb->dev);
351
352 return 0;
353 }
354
355 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
356 .destroy = qxl_user_framebuffer_destroy,
357 .dirty = qxl_framebuffer_surface_dirty,
358 /* TODO?
359 * .create_handle = qxl_user_framebuffer_create_handle, */
360 };
361
362 int
363 qxl_framebuffer_init(struct drm_device *dev,
364 struct qxl_framebuffer *qfb,
365 const struct drm_mode_fb_cmd2 *mode_cmd,
366 struct drm_gem_object *obj,
367 const struct drm_framebuffer_funcs *funcs)
368 {
369 int ret;
370
371 qfb->obj = obj;
372 drm_helper_mode_fill_fb_struct(dev, &qfb->base, mode_cmd);
373 ret = drm_framebuffer_init(dev, &qfb->base, funcs);
374 if (ret) {
375 qfb->obj = NULL;
376 return ret;
377 }
378 return 0;
379 }
380
381 static void qxl_crtc_dpms(struct drm_crtc *crtc, int mode)
382 {
383 }
384
385 static bool qxl_crtc_mode_fixup(struct drm_crtc *crtc,
386 const struct drm_display_mode *mode,
387 struct drm_display_mode *adjusted_mode)
388 {
389 struct drm_device *dev = crtc->dev;
390 struct qxl_device *qdev = dev->dev_private;
391
392 qxl_io_log(qdev, "%s: (%d,%d) => (%d,%d)\n",
393 __func__,
394 mode->hdisplay, mode->vdisplay,
395 adjusted_mode->hdisplay,
396 adjusted_mode->vdisplay);
397 return true;
398 }
399
400 static void
401 qxl_send_monitors_config(struct qxl_device *qdev)
402 {
403 int i;
404
405 BUG_ON(!qdev->ram_header->monitors_config);
406
407 if (qdev->monitors_config->count == 0) {
408 qxl_io_log(qdev, "%s: 0 monitors??\n", __func__);
409 return;
410 }
411 for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
412 struct qxl_head *head = &qdev->monitors_config->heads[i];
413
414 if (head->y > 8192 || head->x > 8192 ||
415 head->width > 8192 || head->height > 8192) {
416 DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
417 i, head->width, head->height,
418 head->x, head->y);
419 return;
420 }
421 }
422 qxl_io_monitors_config(qdev);
423 }
424
425 static void qxl_monitors_config_set(struct qxl_device *qdev,
426 int index,
427 unsigned x, unsigned y,
428 unsigned width, unsigned height,
429 unsigned surf_id)
430 {
431 DRM_DEBUG_KMS("%d:%dx%d+%d+%d\n", index, width, height, x, y);
432 qdev->monitors_config->heads[index].x = x;
433 qdev->monitors_config->heads[index].y = y;
434 qdev->monitors_config->heads[index].width = width;
435 qdev->monitors_config->heads[index].height = height;
436 qdev->monitors_config->heads[index].surface_id = surf_id;
437
438 }
439
440 void qxl_mode_set_nofb(struct drm_crtc *crtc)
441 {
442 struct qxl_device *qdev = crtc->dev->dev_private;
443 struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
444 struct drm_display_mode *mode = &crtc->mode;
445
446 DRM_DEBUG("Mode set (%d,%d)\n",
447 mode->hdisplay, mode->vdisplay);
448
449 qxl_monitors_config_set(qdev, qcrtc->index, 0, 0,
450 mode->hdisplay, mode->vdisplay, 0);
451
452 }
453
454 static void qxl_crtc_commit(struct drm_crtc *crtc)
455 {
456 DRM_DEBUG("\n");
457 }
458
459 static void qxl_crtc_disable(struct drm_crtc *crtc)
460 {
461 struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
462 struct qxl_device *qdev = crtc->dev->dev_private;
463
464 qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
465
466 qxl_send_monitors_config(qdev);
467 }
468
469 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
470 .dpms = qxl_crtc_dpms,
471 .disable = qxl_crtc_disable,
472 .mode_fixup = qxl_crtc_mode_fixup,
473 .mode_set_nofb = qxl_mode_set_nofb,
474 .commit = qxl_crtc_commit,
475 .atomic_flush = qxl_crtc_atomic_flush,
476 };
477
478 int qxl_primary_atomic_check(struct drm_plane *plane,
479 struct drm_plane_state *state)
480 {
481 struct qxl_device *qdev = plane->dev->dev_private;
482 struct qxl_framebuffer *qfb;
483 struct qxl_bo *bo;
484
485 if (!state->crtc || !state->fb)
486 return 0;
487
488 qfb = to_qxl_framebuffer(state->fb);
489 bo = gem_to_qxl_bo(qfb->obj);
490
491 if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
492 DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
493 return -EINVAL;
494 }
495
496 return 0;
497 }
498
499 static void qxl_primary_atomic_update(struct drm_plane *plane,
500 struct drm_plane_state *old_state)
501 {
502 struct qxl_device *qdev = plane->dev->dev_private;
503 struct qxl_framebuffer *qfb =
504 to_qxl_framebuffer(plane->state->fb);
505 struct qxl_framebuffer *qfb_old;
506 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
507 struct qxl_bo *bo_old;
508 struct drm_clip_rect norect = {
509 .x1 = 0,
510 .y1 = 0,
511 .x2 = qfb->base.width,
512 .y2 = qfb->base.height
513 };
514
515 if (!old_state->fb) {
516 qxl_io_log(qdev,
517 "create primary fb: %dx%d,%d,%d\n",
518 bo->surf.width, bo->surf.height,
519 bo->surf.stride, bo->surf.format);
520
521 qxl_io_create_primary(qdev, 0, bo);
522 bo->is_primary = true;
523 return;
524
525 } else {
526 qfb_old = to_qxl_framebuffer(old_state->fb);
527 bo_old = gem_to_qxl_bo(qfb_old->obj);
528 bo_old->is_primary = false;
529 }
530
531 bo->is_primary = true;
532 qxl_draw_dirty_fb(qdev, qfb, bo, 0, 0, &norect, 1, 1);
533 }
534
535 static void qxl_primary_atomic_disable(struct drm_plane *plane,
536 struct drm_plane_state *old_state)
537 {
538 struct qxl_device *qdev = plane->dev->dev_private;
539
540 if (old_state->fb)
541 { struct qxl_framebuffer *qfb =
542 to_qxl_framebuffer(old_state->fb);
543 struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
544
545 qxl_io_destroy_primary(qdev);
546 bo->is_primary = false;
547 }
548 }
549
550 int qxl_plane_atomic_check(struct drm_plane *plane,
551 struct drm_plane_state *state)
552 {
553 return 0;
554 }
555
556 static void qxl_cursor_atomic_update(struct drm_plane *plane,
557 struct drm_plane_state *old_state)
558 {
559 struct drm_device *dev = plane->dev;
560 struct qxl_device *qdev = dev->dev_private;
561 struct drm_framebuffer *fb = plane->state->fb;
562 struct qxl_release *release;
563 struct qxl_cursor_cmd *cmd;
564 struct qxl_cursor *cursor;
565 struct drm_gem_object *obj;
566 struct qxl_bo *cursor_bo, *user_bo = NULL;
567 int ret;
568 void *user_ptr;
569 int size = 64*64*4;
570
571 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
572 QXL_RELEASE_CURSOR_CMD,
573 &release, NULL);
574 if (ret)
575 return;
576
577 if (fb != old_state->fb) {
578 obj = to_qxl_framebuffer(fb)->obj;
579 user_bo = gem_to_qxl_bo(obj);
580
581 /* pinning is done in the prepare/cleanup framevbuffer */
582 ret = qxl_bo_kmap(user_bo, &user_ptr);
583 if (ret)
584 goto out_free_release;
585
586 ret = qxl_alloc_bo_reserved(qdev, release,
587 sizeof(struct qxl_cursor) + size,
588 &cursor_bo);
589 if (ret)
590 goto out_kunmap;
591
592 ret = qxl_release_reserve_list(release, true);
593 if (ret)
594 goto out_free_bo;
595
596 ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
597 if (ret)
598 goto out_backoff;
599
600 cursor->header.unique = 0;
601 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
602 cursor->header.width = 64;
603 cursor->header.height = 64;
604 cursor->header.hot_spot_x = fb->hot_x;
605 cursor->header.hot_spot_y = fb->hot_y;
606 cursor->data_size = size;
607 cursor->chunk.next_chunk = 0;
608 cursor->chunk.prev_chunk = 0;
609 cursor->chunk.data_size = size;
610 memcpy(cursor->chunk.data, user_ptr, size);
611 qxl_bo_kunmap(cursor_bo);
612 qxl_bo_kunmap(user_bo);
613
614 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
615 cmd->u.set.visible = 1;
616 cmd->u.set.shape = qxl_bo_physical_address(qdev,
617 cursor_bo, 0);
618 cmd->type = QXL_CURSOR_SET;
619 } else {
620
621 ret = qxl_release_reserve_list(release, true);
622 if (ret)
623 goto out_free_release;
624
625 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
626 cmd->type = QXL_CURSOR_MOVE;
627 }
628
629 cmd->u.position.x = plane->state->crtc_x + fb->hot_x;
630 cmd->u.position.y = plane->state->crtc_y + fb->hot_y;
631
632 qxl_release_unmap(qdev, release, &cmd->release_info);
633 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
634 qxl_release_fence_buffer_objects(release);
635
636 return;
637
638 out_backoff:
639 qxl_release_backoff_reserve_list(release);
640 out_free_bo:
641 qxl_bo_unref(&cursor_bo);
642 out_kunmap:
643 qxl_bo_kunmap(user_bo);
644 out_free_release:
645 qxl_release_free(qdev, release);
646 return;
647
648 }
649
650 void qxl_cursor_atomic_disable(struct drm_plane *plane,
651 struct drm_plane_state *old_state)
652 {
653 struct qxl_device *qdev = plane->dev->dev_private;
654 struct qxl_release *release;
655 struct qxl_cursor_cmd *cmd;
656 int ret;
657
658 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
659 QXL_RELEASE_CURSOR_CMD,
660 &release, NULL);
661 if (ret)
662 return;
663
664 ret = qxl_release_reserve_list(release, true);
665 if (ret) {
666 qxl_release_free(qdev, release);
667 return;
668 }
669
670 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
671 cmd->type = QXL_CURSOR_HIDE;
672 qxl_release_unmap(qdev, release, &cmd->release_info);
673
674 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
675 qxl_release_fence_buffer_objects(release);
676 }
677
678 int qxl_plane_prepare_fb(struct drm_plane *plane,
679 struct drm_plane_state *new_state)
680 {
681 struct drm_gem_object *obj;
682 struct qxl_bo *user_bo;
683 int ret;
684
685 if (!new_state->fb)
686 return 0;
687
688 obj = to_qxl_framebuffer(new_state->fb)->obj;
689 user_bo = gem_to_qxl_bo(obj);
690
691 ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
692 if (ret)
693 return ret;
694
695 return 0;
696 }
697
698 static void qxl_plane_cleanup_fb(struct drm_plane *plane,
699 struct drm_plane_state *old_state)
700 {
701 struct drm_gem_object *obj;
702 struct qxl_bo *user_bo;
703
704 if (!plane->state->fb) {
705 /* we never executed prepare_fb, so there's nothing to
706 * unpin.
707 */
708 return;
709 }
710
711 obj = to_qxl_framebuffer(plane->state->fb)->obj;
712 user_bo = gem_to_qxl_bo(obj);
713 qxl_bo_unpin(user_bo);
714 }
715
716 static const uint32_t qxl_cursor_plane_formats[] = {
717 DRM_FORMAT_ARGB8888,
718 };
719
720 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
721 .atomic_check = qxl_plane_atomic_check,
722 .atomic_update = qxl_cursor_atomic_update,
723 .atomic_disable = qxl_cursor_atomic_disable,
724 .prepare_fb = qxl_plane_prepare_fb,
725 .cleanup_fb = qxl_plane_cleanup_fb,
726 };
727
728 static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
729 .update_plane = drm_atomic_helper_update_plane,
730 .disable_plane = drm_atomic_helper_disable_plane,
731 .destroy = drm_primary_helper_destroy,
732 .reset = drm_atomic_helper_plane_reset,
733 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
734 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
735 };
736
737 static const uint32_t qxl_primary_plane_formats[] = {
738 DRM_FORMAT_XRGB8888,
739 DRM_FORMAT_ARGB8888,
740 };
741
742 static const struct drm_plane_helper_funcs primary_helper_funcs = {
743 .atomic_check = qxl_primary_atomic_check,
744 .atomic_update = qxl_primary_atomic_update,
745 .atomic_disable = qxl_primary_atomic_disable,
746 .prepare_fb = qxl_plane_prepare_fb,
747 .cleanup_fb = qxl_plane_cleanup_fb,
748 };
749
750 static const struct drm_plane_funcs qxl_primary_plane_funcs = {
751 .update_plane = drm_atomic_helper_update_plane,
752 .disable_plane = drm_atomic_helper_disable_plane,
753 .destroy = drm_primary_helper_destroy,
754 .reset = drm_atomic_helper_plane_reset,
755 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
756 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
757 };
758
759 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
760 unsigned int possible_crtcs,
761 enum drm_plane_type type)
762 {
763 const struct drm_plane_helper_funcs *helper_funcs = NULL;
764 struct drm_plane *plane;
765 const struct drm_plane_funcs *funcs;
766 const uint32_t *formats;
767 int num_formats;
768 int err;
769
770 if (type == DRM_PLANE_TYPE_PRIMARY) {
771 funcs = &qxl_primary_plane_funcs;
772 formats = qxl_primary_plane_formats;
773 num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
774 helper_funcs = &primary_helper_funcs;
775 } else if (type == DRM_PLANE_TYPE_CURSOR) {
776 funcs = &qxl_cursor_plane_funcs;
777 formats = qxl_cursor_plane_formats;
778 helper_funcs = &qxl_cursor_helper_funcs;
779 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats);
780 } else {
781 return ERR_PTR(-EINVAL);
782 }
783
784 plane = kzalloc(sizeof(*plane), GFP_KERNEL);
785 if (!plane)
786 return ERR_PTR(-ENOMEM);
787
788 err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs,
789 funcs, formats, num_formats,
790 type, NULL);
791 if (err)
792 goto free_plane;
793
794 drm_plane_helper_add(plane, helper_funcs);
795
796 return plane;
797
798 free_plane:
799 kfree(plane);
800 return ERR_PTR(-EINVAL);
801 }
802
803 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
804 {
805 struct qxl_crtc *qxl_crtc;
806 struct drm_plane *primary, *cursor;
807 struct qxl_device *qdev = dev->dev_private;
808 int r;
809
810 qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
811 if (!qxl_crtc)
812 return -ENOMEM;
813
814 primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY);
815 if (IS_ERR(primary)) {
816 r = -ENOMEM;
817 goto free_mem;
818 }
819
820 cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR);
821 if (IS_ERR(cursor)) {
822 r = -ENOMEM;
823 goto clean_primary;
824 }
825
826 r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor,
827 &qxl_crtc_funcs, NULL);
828 if (r)
829 goto clean_cursor;
830
831 qxl_crtc->index = crtc_id;
832 drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
833 return 0;
834
835 clean_cursor:
836 drm_plane_cleanup(cursor);
837 kfree(cursor);
838 clean_primary:
839 drm_plane_cleanup(primary);
840 kfree(primary);
841 free_mem:
842 kfree(qxl_crtc);
843 return r;
844 }
845
846 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
847 {
848 DRM_DEBUG("\n");
849 }
850
851 static void qxl_enc_prepare(struct drm_encoder *encoder)
852 {
853 DRM_DEBUG("\n");
854 }
855
856 static void qxl_write_monitors_config_for_encoder(struct qxl_device *qdev,
857 struct drm_encoder *encoder)
858 {
859 int i;
860 struct qxl_output *output = drm_encoder_to_qxl_output(encoder);
861 struct qxl_head *head;
862 struct drm_display_mode *mode;
863
864 BUG_ON(!encoder);
865 /* TODO: ugly, do better */
866 i = output->index;
867 if (!qdev->monitors_config ||
868 qdev->monitors_config->max_allowed <= i) {
869 DRM_ERROR(
870 "head number too large or missing monitors config: %p, %d",
871 qdev->monitors_config,
872 qdev->monitors_config ?
873 qdev->monitors_config->max_allowed : -1);
874 return;
875 }
876 if (!encoder->crtc) {
877 DRM_ERROR("missing crtc on encoder %p\n", encoder);
878 return;
879 }
880 if (i != 0)
881 DRM_DEBUG("missing for multiple monitors: no head holes\n");
882 head = &qdev->monitors_config->heads[i];
883 head->id = i;
884 if (encoder->crtc->enabled) {
885 mode = &encoder->crtc->mode;
886 head->width = mode->hdisplay;
887 head->height = mode->vdisplay;
888 head->x = encoder->crtc->x;
889 head->y = encoder->crtc->y;
890 if (qdev->monitors_config->count < i + 1)
891 qdev->monitors_config->count = i + 1;
892 } else {
893 head->width = 0;
894 head->height = 0;
895 head->x = 0;
896 head->y = 0;
897 }
898 DRM_DEBUG_KMS("setting head %d to +%d+%d %dx%d out of %d\n",
899 i, head->x, head->y, head->width, head->height, qdev->monitors_config->count);
900 head->flags = 0;
901 /* TODO - somewhere else to call this for multiple monitors
902 * (config_commit?) */
903 qxl_send_monitors_config(qdev);
904 }
905
906 static void qxl_enc_commit(struct drm_encoder *encoder)
907 {
908 struct qxl_device *qdev = encoder->dev->dev_private;
909
910 qxl_write_monitors_config_for_encoder(qdev, encoder);
911 DRM_DEBUG("\n");
912 }
913
914 static void qxl_enc_mode_set(struct drm_encoder *encoder,
915 struct drm_display_mode *mode,
916 struct drm_display_mode *adjusted_mode)
917 {
918 DRM_DEBUG("\n");
919 }
920
921 static int qxl_conn_get_modes(struct drm_connector *connector)
922 {
923 unsigned pwidth = 1024;
924 unsigned pheight = 768;
925 int ret = 0;
926
927 ret = qxl_add_monitors_config_modes(connector, &pwidth, &pheight);
928 if (ret < 0)
929 return ret;
930 ret += qxl_add_common_modes(connector, pwidth, pheight);
931 return ret;
932 }
933
934 static int qxl_conn_mode_valid(struct drm_connector *connector,
935 struct drm_display_mode *mode)
936 {
937 struct drm_device *ddev = connector->dev;
938 struct qxl_device *qdev = ddev->dev_private;
939 int i;
940
941 /* TODO: is this called for user defined modes? (xrandr --add-mode)
942 * TODO: check that the mode fits in the framebuffer */
943
944 if(qdev->monitors_config_width == mode->hdisplay &&
945 qdev->monitors_config_height == mode->vdisplay)
946 return MODE_OK;
947
948 for (i = 0; i < ARRAY_SIZE(common_modes); i++) {
949 if (common_modes[i].w == mode->hdisplay && common_modes[i].h == mode->vdisplay)
950 return MODE_OK;
951 }
952 return MODE_BAD;
953 }
954
955 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
956 {
957 struct qxl_output *qxl_output =
958 drm_connector_to_qxl_output(connector);
959
960 DRM_DEBUG("\n");
961 return &qxl_output->enc;
962 }
963
964
965 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
966 .dpms = qxl_enc_dpms,
967 .prepare = qxl_enc_prepare,
968 .mode_set = qxl_enc_mode_set,
969 .commit = qxl_enc_commit,
970 };
971
972 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
973 .get_modes = qxl_conn_get_modes,
974 .mode_valid = qxl_conn_mode_valid,
975 .best_encoder = qxl_best_encoder,
976 };
977
978 static enum drm_connector_status qxl_conn_detect(
979 struct drm_connector *connector,
980 bool force)
981 {
982 struct qxl_output *output =
983 drm_connector_to_qxl_output(connector);
984 struct drm_device *ddev = connector->dev;
985 struct qxl_device *qdev = ddev->dev_private;
986 bool connected = false;
987
988 /* The first monitor is always connected */
989 if (!qdev->client_monitors_config) {
990 if (output->index == 0)
991 connected = true;
992 } else
993 connected = qdev->client_monitors_config->count > output->index &&
994 qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
995
996 DRM_DEBUG("#%d connected: %d\n", output->index, connected);
997 if (!connected)
998 qxl_monitors_config_set(qdev, output->index, 0, 0, 0, 0, 0);
999
1000 return connected ? connector_status_connected
1001 : connector_status_disconnected;
1002 }
1003
1004 static int qxl_conn_set_property(struct drm_connector *connector,
1005 struct drm_property *property,
1006 uint64_t value)
1007 {
1008 DRM_DEBUG("\n");
1009 return 0;
1010 }
1011
1012 static void qxl_conn_destroy(struct drm_connector *connector)
1013 {
1014 struct qxl_output *qxl_output =
1015 drm_connector_to_qxl_output(connector);
1016
1017 drm_connector_unregister(connector);
1018 drm_connector_cleanup(connector);
1019 kfree(qxl_output);
1020 }
1021
1022 static const struct drm_connector_funcs qxl_connector_funcs = {
1023 .dpms = drm_helper_connector_dpms,
1024 .detect = qxl_conn_detect,
1025 .fill_modes = drm_helper_probe_single_connector_modes,
1026 .set_property = qxl_conn_set_property,
1027 .destroy = qxl_conn_destroy,
1028 .reset = drm_atomic_helper_connector_reset,
1029 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1030 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1031 };
1032
1033 static void qxl_enc_destroy(struct drm_encoder *encoder)
1034 {
1035 drm_encoder_cleanup(encoder);
1036 }
1037
1038 static const struct drm_encoder_funcs qxl_enc_funcs = {
1039 .destroy = qxl_enc_destroy,
1040 };
1041
1042 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1043 {
1044 if (qdev->hotplug_mode_update_property)
1045 return 0;
1046
1047 qdev->hotplug_mode_update_property =
1048 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1049 "hotplug_mode_update", 0, 1);
1050
1051 return 0;
1052 }
1053
1054 static int qdev_output_init(struct drm_device *dev, int num_output)
1055 {
1056 struct qxl_device *qdev = dev->dev_private;
1057 struct qxl_output *qxl_output;
1058 struct drm_connector *connector;
1059 struct drm_encoder *encoder;
1060
1061 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1062 if (!qxl_output)
1063 return -ENOMEM;
1064
1065 qxl_output->index = num_output;
1066
1067 connector = &qxl_output->base;
1068 encoder = &qxl_output->enc;
1069 drm_connector_init(dev, &qxl_output->base,
1070 &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1071
1072 drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
1073 DRM_MODE_ENCODER_VIRTUAL, NULL);
1074
1075 /* we get HPD via client monitors config */
1076 connector->polled = DRM_CONNECTOR_POLL_HPD;
1077 encoder->possible_crtcs = 1 << num_output;
1078 drm_mode_connector_attach_encoder(&qxl_output->base,
1079 &qxl_output->enc);
1080 drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
1081 drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1082
1083 drm_object_attach_property(&connector->base,
1084 qdev->hotplug_mode_update_property, 0);
1085 drm_object_attach_property(&connector->base,
1086 dev->mode_config.suggested_x_property, 0);
1087 drm_object_attach_property(&connector->base,
1088 dev->mode_config.suggested_y_property, 0);
1089 return 0;
1090 }
1091
1092 static struct drm_framebuffer *
1093 qxl_user_framebuffer_create(struct drm_device *dev,
1094 struct drm_file *file_priv,
1095 const struct drm_mode_fb_cmd2 *mode_cmd)
1096 {
1097 struct drm_gem_object *obj;
1098 struct qxl_framebuffer *qxl_fb;
1099 int ret;
1100
1101 obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[0]);
1102 if (!obj)
1103 return NULL;
1104
1105 qxl_fb = kzalloc(sizeof(*qxl_fb), GFP_KERNEL);
1106 if (qxl_fb == NULL)
1107 return NULL;
1108
1109 ret = qxl_framebuffer_init(dev, qxl_fb, mode_cmd, obj, &qxl_fb_funcs);
1110 if (ret) {
1111 kfree(qxl_fb);
1112 drm_gem_object_unreference_unlocked(obj);
1113 return NULL;
1114 }
1115
1116 return &qxl_fb->base;
1117 }
1118
1119 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1120 .fb_create = qxl_user_framebuffer_create,
1121 .atomic_check = drm_atomic_helper_check,
1122 .atomic_commit = drm_atomic_helper_commit,
1123 };
1124
1125 int qxl_create_monitors_object(struct qxl_device *qdev)
1126 {
1127 int ret;
1128 struct drm_gem_object *gobj;
1129 int max_allowed = qxl_num_crtc;
1130 int monitors_config_size = sizeof(struct qxl_monitors_config) +
1131 max_allowed * sizeof(struct qxl_head);
1132
1133 ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1134 QXL_GEM_DOMAIN_VRAM,
1135 false, false, NULL, &gobj);
1136 if (ret) {
1137 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1138 return -ENOMEM;
1139 }
1140 qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1141
1142 ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
1143 if (ret)
1144 return ret;
1145
1146 qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1147
1148 qdev->monitors_config = qdev->monitors_config_bo->kptr;
1149 qdev->ram_header->monitors_config =
1150 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1151
1152 memset(qdev->monitors_config, 0, monitors_config_size);
1153 qdev->monitors_config->max_allowed = max_allowed;
1154 return 0;
1155 }
1156
1157 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1158 {
1159 int ret;
1160
1161 qdev->monitors_config = NULL;
1162 qdev->ram_header->monitors_config = 0;
1163
1164 qxl_bo_kunmap(qdev->monitors_config_bo);
1165 ret = qxl_bo_unpin(qdev->monitors_config_bo);
1166 if (ret)
1167 return ret;
1168
1169 qxl_bo_unref(&qdev->monitors_config_bo);
1170 return 0;
1171 }
1172
1173 int qxl_modeset_init(struct qxl_device *qdev)
1174 {
1175 int i;
1176 int ret;
1177
1178 drm_mode_config_init(&qdev->ddev);
1179
1180 ret = qxl_create_monitors_object(qdev);
1181 if (ret)
1182 return ret;
1183
1184 qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
1185
1186 /* modes will be validated against the framebuffer size */
1187 qdev->ddev.mode_config.min_width = 0;
1188 qdev->ddev.mode_config.min_height = 0;
1189 qdev->ddev.mode_config.max_width = 8192;
1190 qdev->ddev.mode_config.max_height = 8192;
1191
1192 qdev->ddev.mode_config.fb_base = qdev->vram_base;
1193
1194 drm_mode_create_suggested_offset_properties(&qdev->ddev);
1195 qxl_mode_create_hotplug_mode_update_property(qdev);
1196
1197 for (i = 0 ; i < qxl_num_crtc; ++i) {
1198 qdev_crtc_init(&qdev->ddev, i);
1199 qdev_output_init(&qdev->ddev, i);
1200 }
1201
1202 qxl_display_read_client_monitors_config(qdev);
1203 qdev->mode_info.mode_config_initialized = true;
1204
1205 drm_mode_config_reset(&qdev->ddev);
1206
1207 /* primary surface must be created by this point, to allow
1208 * issuing command queue commands and having them read by
1209 * spice server. */
1210 qxl_fbdev_init(qdev);
1211 return 0;
1212 }
1213
1214 void qxl_modeset_fini(struct qxl_device *qdev)
1215 {
1216 qxl_fbdev_fini(qdev);
1217
1218 qxl_destroy_monitors_object(qdev);
1219 if (qdev->mode_info.mode_config_initialized) {
1220 drm_mode_config_cleanup(&qdev->ddev);
1221 qdev->mode_info.mode_config_initialized = false;
1222 }
1223 }
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