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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / gpu / drm / qxl / qxl_display.c
blob16d73b22f3f5463cd9bd36001f3f2cdc2c77fe77
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 <linux/delay.h>
28
29 #include <drm/drm_atomic.h>
30 #include <drm/drm_atomic_helper.h>
31 #include <drm/drm_gem_framebuffer_helper.h>
32 #include <drm/drm_plane_helper.h>
33 #include <drm/drm_probe_helper.h>
34 #include <drm/drm_vblank.h>
35
36 #include "qxl_drv.h"
37 #include "qxl_object.h"
38
39 static bool qxl_head_enabled(struct qxl_head *head)
40 {
41 return head->width && head->height;
42 }
43
44 static int qxl_alloc_client_monitors_config(struct qxl_device *qdev,
45 unsigned int count)
46 {
47 if (qdev->client_monitors_config &&
48 count > qdev->client_monitors_config->count) {
49 kfree(qdev->client_monitors_config);
50 qdev->client_monitors_config = NULL;
51 }
52 if (!qdev->client_monitors_config) {
53 qdev->client_monitors_config = kzalloc(
54 struct_size(qdev->client_monitors_config,
55 heads, count), GFP_KERNEL);
56 if (!qdev->client_monitors_config)
57 return -ENOMEM;
58 }
59 qdev->client_monitors_config->count = count;
60 return 0;
61 }
62
63 enum {
64 MONITORS_CONFIG_MODIFIED,
65 MONITORS_CONFIG_UNCHANGED,
66 MONITORS_CONFIG_BAD_CRC,
67 MONITORS_CONFIG_ERROR,
68 };
69
70 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
71 {
72 int i;
73 int num_monitors;
74 uint32_t crc;
75 int status = MONITORS_CONFIG_UNCHANGED;
76
77 num_monitors = qdev->rom->client_monitors_config.count;
78 crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
79 sizeof(qdev->rom->client_monitors_config));
80 if (crc != qdev->rom->client_monitors_config_crc)
81 return MONITORS_CONFIG_BAD_CRC;
82 if (!num_monitors) {
83 DRM_DEBUG_KMS("no client monitors configured\n");
84 return status;
85 }
86 if (num_monitors > qxl_num_crtc) {
87 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
88 qxl_num_crtc, num_monitors);
89 num_monitors = qxl_num_crtc;
90 } else {
91 num_monitors = qdev->rom->client_monitors_config.count;
92 }
93 if (qdev->client_monitors_config
94 && (num_monitors != qdev->client_monitors_config->count)) {
95 status = MONITORS_CONFIG_MODIFIED;
96 }
97 if (qxl_alloc_client_monitors_config(qdev, num_monitors)) {
98 status = MONITORS_CONFIG_ERROR;
99 return status;
100 }
101 /* we copy max from the client but it isn't used */
102 qdev->client_monitors_config->max_allowed = qxl_num_crtc;
103 for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
104 struct qxl_urect *c_rect =
105 &qdev->rom->client_monitors_config.heads[i];
106 struct qxl_head *client_head =
107 &qdev->client_monitors_config->heads[i];
108 if (client_head->x != c_rect->left) {
109 client_head->x = c_rect->left;
110 status = MONITORS_CONFIG_MODIFIED;
111 }
112 if (client_head->y != c_rect->top) {
113 client_head->y = c_rect->top;
114 status = MONITORS_CONFIG_MODIFIED;
115 }
116 if (client_head->width != c_rect->right - c_rect->left) {
117 client_head->width = c_rect->right - c_rect->left;
118 status = MONITORS_CONFIG_MODIFIED;
119 }
120 if (client_head->height != c_rect->bottom - c_rect->top) {
121 client_head->height = c_rect->bottom - c_rect->top;
122 status = MONITORS_CONFIG_MODIFIED;
123 }
124 if (client_head->surface_id != 0) {
125 client_head->surface_id = 0;
126 status = MONITORS_CONFIG_MODIFIED;
127 }
128 if (client_head->id != i) {
129 client_head->id = i;
130 status = MONITORS_CONFIG_MODIFIED;
131 }
132 if (client_head->flags != 0) {
133 client_head->flags = 0;
134 status = MONITORS_CONFIG_MODIFIED;
135 }
136 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
137 client_head->x, client_head->y);
138 }
139
140 return status;
141 }
142
143 static void qxl_update_offset_props(struct qxl_device *qdev)
144 {
145 struct drm_device *dev = &qdev->ddev;
146 struct drm_connector *connector;
147 struct qxl_output *output;
148 struct qxl_head *head;
149
150 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
151 output = drm_connector_to_qxl_output(connector);
152
153 head = &qdev->client_monitors_config->heads[output->index];
154
155 drm_object_property_set_value(&connector->base,
156 dev->mode_config.suggested_x_property, head->x);
157 drm_object_property_set_value(&connector->base,
158 dev->mode_config.suggested_y_property, head->y);
159 }
160 }
161
162 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
163 {
164 struct drm_device *dev = &qdev->ddev;
165 int status, retries;
166
167 for (retries = 0; retries < 10; retries++) {
168 status = qxl_display_copy_rom_client_monitors_config(qdev);
169 if (status != MONITORS_CONFIG_BAD_CRC)
170 break;
171 udelay(5);
172 }
173 if (status == MONITORS_CONFIG_ERROR) {
174 DRM_DEBUG_KMS("ignoring client monitors config: error");
175 return;
176 }
177 if (status == MONITORS_CONFIG_BAD_CRC) {
178 DRM_DEBUG_KMS("ignoring client monitors config: bad crc");
179 return;
180 }
181 if (status == MONITORS_CONFIG_UNCHANGED) {
182 DRM_DEBUG_KMS("ignoring client monitors config: unchanged");
183 return;
184 }
185
186 drm_modeset_lock_all(dev);
187 qxl_update_offset_props(qdev);
188 drm_modeset_unlock_all(dev);
189 if (!drm_helper_hpd_irq_event(dev)) {
190 /* notify that the monitor configuration changed, to
191 adjust at the arbitrary resolution */
192 drm_kms_helper_hotplug_event(dev);
193 }
194 }
195
196 static int qxl_check_mode(struct qxl_device *qdev,
197 unsigned int width,
198 unsigned int height)
199 {
200 unsigned int stride;
201 unsigned int size;
202
203 if (check_mul_overflow(width, 4u, &stride))
204 return -EINVAL;
205 if (check_mul_overflow(stride, height, &size))
206 return -EINVAL;
207 if (size > qdev->vram_size)
208 return -ENOMEM;
209 return 0;
210 }
211
212 static int qxl_check_framebuffer(struct qxl_device *qdev,
213 struct qxl_bo *bo)
214 {
215 return qxl_check_mode(qdev, bo->surf.width, bo->surf.height);
216 }
217
218 static int qxl_add_mode(struct drm_connector *connector,
219 unsigned int width,
220 unsigned int height,
221 bool preferred)
222 {
223 struct drm_device *dev = connector->dev;
224 struct qxl_device *qdev = dev->dev_private;
225 struct drm_display_mode *mode = NULL;
226 int rc;
227
228 rc = qxl_check_mode(qdev, width, height);
229 if (rc != 0)
230 return 0;
231
232 mode = drm_cvt_mode(dev, width, height, 60, false, false, false);
233 if (preferred)
234 mode->type |= DRM_MODE_TYPE_PREFERRED;
235 mode->hdisplay = width;
236 mode->vdisplay = height;
237 drm_mode_set_name(mode);
238 drm_mode_probed_add(connector, mode);
239 return 1;
240 }
241
242 static int qxl_add_monitors_config_modes(struct drm_connector *connector)
243 {
244 struct drm_device *dev = connector->dev;
245 struct qxl_device *qdev = dev->dev_private;
246 struct qxl_output *output = drm_connector_to_qxl_output(connector);
247 int h = output->index;
248 struct qxl_head *head;
249
250 if (!qdev->monitors_config)
251 return 0;
252 if (h >= qxl_num_crtc)
253 return 0;
254 if (!qdev->client_monitors_config)
255 return 0;
256 if (h >= qdev->client_monitors_config->count)
257 return 0;
258
259 head = &qdev->client_monitors_config->heads[h];
260 DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height);
261
262 return qxl_add_mode(connector, head->width, head->height, true);
263 }
264
265 static struct mode_size {
266 int w;
267 int h;
268 } extra_modes[] = {
269 { 720, 480},
270 {1152, 768},
271 {1280, 854},
272 };
273
274 static int qxl_add_extra_modes(struct drm_connector *connector)
275 {
276 int i, ret = 0;
277
278 for (i = 0; i < ARRAY_SIZE(extra_modes); i++)
279 ret += qxl_add_mode(connector,
280 extra_modes[i].w,
281 extra_modes[i].h,
282 false);
283 return ret;
284 }
285
286 static void qxl_send_monitors_config(struct qxl_device *qdev)
287 {
288 int i;
289
290 BUG_ON(!qdev->ram_header->monitors_config);
291
292 if (qdev->monitors_config->count == 0)
293 return;
294
295 for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
296 struct qxl_head *head = &qdev->monitors_config->heads[i];
297
298 if (head->y > 8192 || head->x > 8192 ||
299 head->width > 8192 || head->height > 8192) {
300 DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
301 i, head->width, head->height,
302 head->x, head->y);
303 return;
304 }
305 }
306 qxl_io_monitors_config(qdev);
307 }
308
309 static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc,
310 const char *reason)
311 {
312 struct drm_device *dev = crtc->dev;
313 struct qxl_device *qdev = dev->dev_private;
314 struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
315 struct qxl_head head;
316 int oldcount, i = qcrtc->index;
317
318 if (!qdev->primary_bo) {
319 DRM_DEBUG_KMS("no primary surface, skip (%s)\n", reason);
320 return;
321 }
322
323 if (!qdev->monitors_config || qxl_num_crtc <= i)
324 return;
325
326 head.id = i;
327 head.flags = 0;
328 oldcount = qdev->monitors_config->count;
329 if (crtc->state->active) {
330 struct drm_display_mode *mode = &crtc->mode;
331
332 head.width = mode->hdisplay;
333 head.height = mode->vdisplay;
334 head.x = crtc->x;
335 head.y = crtc->y;
336 if (qdev->monitors_config->count < i + 1)
337 qdev->monitors_config->count = i + 1;
338 if (qdev->primary_bo == qdev->dumb_shadow_bo)
339 head.x += qdev->dumb_heads[i].x;
340 } else if (i > 0) {
341 head.width = 0;
342 head.height = 0;
343 head.x = 0;
344 head.y = 0;
345 if (qdev->monitors_config->count == i + 1)
346 qdev->monitors_config->count = i;
347 } else {
348 DRM_DEBUG_KMS("inactive head 0, skip (%s)\n", reason);
349 return;
350 }
351
352 if (head.width == qdev->monitors_config->heads[i].width &&
353 head.height == qdev->monitors_config->heads[i].height &&
354 head.x == qdev->monitors_config->heads[i].x &&
355 head.y == qdev->monitors_config->heads[i].y &&
356 oldcount == qdev->monitors_config->count)
357 return;
358
359 DRM_DEBUG_KMS("head %d, %dx%d, at +%d+%d, %s (%s)\n",
360 i, head.width, head.height, head.x, head.y,
361 crtc->state->active ? "on" : "off", reason);
362 if (oldcount != qdev->monitors_config->count)
363 DRM_DEBUG_KMS("active heads %d -> %d (%d total)\n",
364 oldcount, qdev->monitors_config->count,
365 qxl_num_crtc);
366
367 qdev->monitors_config->heads[i] = head;
368 qdev->monitors_config->max_allowed = qxl_num_crtc;
369 qxl_send_monitors_config(qdev);
370 }
371
372 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc,
373 struct drm_crtc_state *old_crtc_state)
374 {
375 struct drm_device *dev = crtc->dev;
376 struct drm_pending_vblank_event *event;
377 unsigned long flags;
378
379 if (crtc->state && crtc->state->event) {
380 event = crtc->state->event;
381 crtc->state->event = NULL;
382
383 spin_lock_irqsave(&dev->event_lock, flags);
384 drm_crtc_send_vblank_event(crtc, event);
385 spin_unlock_irqrestore(&dev->event_lock, flags);
386 }
387
388 qxl_crtc_update_monitors_config(crtc, "flush");
389 }
390
391 static void qxl_crtc_destroy(struct drm_crtc *crtc)
392 {
393 struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
394
395 qxl_bo_unref(&qxl_crtc->cursor_bo);
396 drm_crtc_cleanup(crtc);
397 kfree(qxl_crtc);
398 }
399
400 static const struct drm_crtc_funcs qxl_crtc_funcs = {
401 .set_config = drm_atomic_helper_set_config,
402 .destroy = qxl_crtc_destroy,
403 .page_flip = drm_atomic_helper_page_flip,
404 .reset = drm_atomic_helper_crtc_reset,
405 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
406 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
407 };
408
409 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
410 struct drm_file *file_priv,
411 unsigned int flags, unsigned int color,
412 struct drm_clip_rect *clips,
413 unsigned int num_clips)
414 {
415 /* TODO: vmwgfx where this was cribbed from had locking. Why? */
416 struct qxl_device *qdev = fb->dev->dev_private;
417 struct drm_clip_rect norect;
418 struct qxl_bo *qobj;
419 bool is_primary;
420 int inc = 1;
421
422 drm_modeset_lock_all(fb->dev);
423
424 qobj = gem_to_qxl_bo(fb->obj[0]);
425 /* if we aren't primary surface ignore this */
426 is_primary = qobj->shadow ? qobj->shadow->is_primary : qobj->is_primary;
427 if (!is_primary) {
428 drm_modeset_unlock_all(fb->dev);
429 return 0;
430 }
431
432 if (!num_clips) {
433 num_clips = 1;
434 clips = &norect;
435 norect.x1 = norect.y1 = 0;
436 norect.x2 = fb->width;
437 norect.y2 = fb->height;
438 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
439 num_clips /= 2;
440 inc = 2; /* skip source rects */
441 }
442
443 qxl_draw_dirty_fb(qdev, fb, qobj, flags, color,
444 clips, num_clips, inc, 0);
445
446 drm_modeset_unlock_all(fb->dev);
447
448 return 0;
449 }
450
451 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
452 .destroy = drm_gem_fb_destroy,
453 .dirty = qxl_framebuffer_surface_dirty,
454 .create_handle = drm_gem_fb_create_handle,
455 };
456
457 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc,
458 struct drm_crtc_state *old_state)
459 {
460 qxl_crtc_update_monitors_config(crtc, "enable");
461 }
462
463 static void qxl_crtc_atomic_disable(struct drm_crtc *crtc,
464 struct drm_crtc_state *old_state)
465 {
466 qxl_crtc_update_monitors_config(crtc, "disable");
467 }
468
469 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
470 .atomic_flush = qxl_crtc_atomic_flush,
471 .atomic_enable = qxl_crtc_atomic_enable,
472 .atomic_disable = qxl_crtc_atomic_disable,
473 };
474
475 static int qxl_primary_atomic_check(struct drm_plane *plane,
476 struct drm_plane_state *state)
477 {
478 struct qxl_device *qdev = plane->dev->dev_private;
479 struct qxl_bo *bo;
480
481 if (!state->crtc || !state->fb)
482 return 0;
483
484 bo = gem_to_qxl_bo(state->fb->obj[0]);
485
486 return qxl_check_framebuffer(qdev, bo);
487 }
488
489 static int qxl_primary_apply_cursor(struct drm_plane *plane)
490 {
491 struct drm_device *dev = plane->dev;
492 struct qxl_device *qdev = dev->dev_private;
493 struct drm_framebuffer *fb = plane->state->fb;
494 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
495 struct qxl_cursor_cmd *cmd;
496 struct qxl_release *release;
497 int ret = 0;
498
499 if (!qcrtc->cursor_bo)
500 return 0;
501
502 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
503 QXL_RELEASE_CURSOR_CMD,
504 &release, NULL);
505 if (ret)
506 return ret;
507
508 ret = qxl_release_list_add(release, qcrtc->cursor_bo);
509 if (ret)
510 goto out_free_release;
511
512 ret = qxl_release_reserve_list(release, false);
513 if (ret)
514 goto out_free_release;
515
516 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
517 cmd->type = QXL_CURSOR_SET;
518 cmd->u.set.position.x = plane->state->crtc_x + fb->hot_x;
519 cmd->u.set.position.y = plane->state->crtc_y + fb->hot_y;
520
521 cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0);
522
523 cmd->u.set.visible = 1;
524 qxl_release_unmap(qdev, release, &cmd->release_info);
525
526 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
527 qxl_release_fence_buffer_objects(release);
528
529 return ret;
530
531 out_free_release:
532 qxl_release_free(qdev, release);
533 return ret;
534 }
535
536 static void qxl_primary_atomic_update(struct drm_plane *plane,
537 struct drm_plane_state *old_state)
538 {
539 struct qxl_device *qdev = plane->dev->dev_private;
540 struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]);
541 struct qxl_bo *primary;
542 struct drm_clip_rect norect = {
543 .x1 = 0,
544 .y1 = 0,
545 .x2 = plane->state->fb->width,
546 .y2 = plane->state->fb->height
547 };
548 uint32_t dumb_shadow_offset = 0;
549
550 primary = bo->shadow ? bo->shadow : bo;
551
552 if (!primary->is_primary) {
553 if (qdev->primary_bo)
554 qxl_io_destroy_primary(qdev);
555 qxl_io_create_primary(qdev, primary);
556 qxl_primary_apply_cursor(plane);
557 }
558
559 if (bo->is_dumb)
560 dumb_shadow_offset =
561 qdev->dumb_heads[plane->state->crtc->index].x;
562
563 qxl_draw_dirty_fb(qdev, plane->state->fb, bo, 0, 0, &norect, 1, 1,
564 dumb_shadow_offset);
565 }
566
567 static void qxl_primary_atomic_disable(struct drm_plane *plane,
568 struct drm_plane_state *old_state)
569 {
570 struct qxl_device *qdev = plane->dev->dev_private;
571
572 if (old_state->fb) {
573 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]);
574
575 if (bo->is_primary) {
576 qxl_io_destroy_primary(qdev);
577 bo->is_primary = false;
578 }
579 }
580 }
581
582 static void qxl_cursor_atomic_update(struct drm_plane *plane,
583 struct drm_plane_state *old_state)
584 {
585 struct drm_device *dev = plane->dev;
586 struct qxl_device *qdev = dev->dev_private;
587 struct drm_framebuffer *fb = plane->state->fb;
588 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
589 struct qxl_release *release;
590 struct qxl_cursor_cmd *cmd;
591 struct qxl_cursor *cursor;
592 struct drm_gem_object *obj;
593 struct qxl_bo *cursor_bo = NULL, *user_bo = NULL, *old_cursor_bo = NULL;
594 int ret;
595 void *user_ptr;
596 int size = 64*64*4;
597
598 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
599 QXL_RELEASE_CURSOR_CMD,
600 &release, NULL);
601 if (ret)
602 return;
603
604 if (fb != old_state->fb) {
605 obj = fb->obj[0];
606 user_bo = gem_to_qxl_bo(obj);
607
608 /* pinning is done in the prepare/cleanup framevbuffer */
609 ret = qxl_bo_kmap(user_bo, &user_ptr);
610 if (ret)
611 goto out_free_release;
612
613 ret = qxl_alloc_bo_reserved(qdev, release,
614 sizeof(struct qxl_cursor) + size,
615 &cursor_bo);
616 if (ret)
617 goto out_kunmap;
618
619 ret = qxl_bo_pin(cursor_bo);
620 if (ret)
621 goto out_free_bo;
622
623 ret = qxl_release_reserve_list(release, true);
624 if (ret)
625 goto out_unpin;
626
627 ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
628 if (ret)
629 goto out_backoff;
630
631 cursor->header.unique = 0;
632 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
633 cursor->header.width = 64;
634 cursor->header.height = 64;
635 cursor->header.hot_spot_x = fb->hot_x;
636 cursor->header.hot_spot_y = fb->hot_y;
637 cursor->data_size = size;
638 cursor->chunk.next_chunk = 0;
639 cursor->chunk.prev_chunk = 0;
640 cursor->chunk.data_size = size;
641 memcpy(cursor->chunk.data, user_ptr, size);
642 qxl_bo_kunmap(cursor_bo);
643 qxl_bo_kunmap(user_bo);
644
645 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
646 cmd->u.set.visible = 1;
647 cmd->u.set.shape = qxl_bo_physical_address(qdev,
648 cursor_bo, 0);
649 cmd->type = QXL_CURSOR_SET;
650
651 old_cursor_bo = qcrtc->cursor_bo;
652 qcrtc->cursor_bo = cursor_bo;
653 cursor_bo = NULL;
654 } else {
655
656 ret = qxl_release_reserve_list(release, true);
657 if (ret)
658 goto out_free_release;
659
660 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
661 cmd->type = QXL_CURSOR_MOVE;
662 }
663
664 cmd->u.position.x = plane->state->crtc_x + fb->hot_x;
665 cmd->u.position.y = plane->state->crtc_y + fb->hot_y;
666
667 qxl_release_unmap(qdev, release, &cmd->release_info);
668 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
669 qxl_release_fence_buffer_objects(release);
670
671 if (old_cursor_bo != NULL)
672 qxl_bo_unpin(old_cursor_bo);
673 qxl_bo_unref(&old_cursor_bo);
674 qxl_bo_unref(&cursor_bo);
675
676 return;
677
678 out_backoff:
679 qxl_release_backoff_reserve_list(release);
680 out_unpin:
681 qxl_bo_unpin(cursor_bo);
682 out_free_bo:
683 qxl_bo_unref(&cursor_bo);
684 out_kunmap:
685 qxl_bo_kunmap(user_bo);
686 out_free_release:
687 qxl_release_free(qdev, release);
688 return;
689
690 }
691
692 static void qxl_cursor_atomic_disable(struct drm_plane *plane,
693 struct drm_plane_state *old_state)
694 {
695 struct qxl_device *qdev = plane->dev->dev_private;
696 struct qxl_release *release;
697 struct qxl_cursor_cmd *cmd;
698 int ret;
699
700 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
701 QXL_RELEASE_CURSOR_CMD,
702 &release, NULL);
703 if (ret)
704 return;
705
706 ret = qxl_release_reserve_list(release, true);
707 if (ret) {
708 qxl_release_free(qdev, release);
709 return;
710 }
711
712 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
713 cmd->type = QXL_CURSOR_HIDE;
714 qxl_release_unmap(qdev, release, &cmd->release_info);
715
716 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
717 qxl_release_fence_buffer_objects(release);
718 }
719
720 static void qxl_update_dumb_head(struct qxl_device *qdev,
721 int index, struct qxl_bo *bo)
722 {
723 uint32_t width, height;
724
725 if (index >= qdev->monitors_config->max_allowed)
726 return;
727
728 if (bo && bo->is_dumb) {
729 width = bo->surf.width;
730 height = bo->surf.height;
731 } else {
732 width = 0;
733 height = 0;
734 }
735
736 if (qdev->dumb_heads[index].width == width &&
737 qdev->dumb_heads[index].height == height)
738 return;
739
740 DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index,
741 qdev->dumb_heads[index].width,
742 qdev->dumb_heads[index].height,
743 width, height);
744 qdev->dumb_heads[index].width = width;
745 qdev->dumb_heads[index].height = height;
746 }
747
748 static void qxl_calc_dumb_shadow(struct qxl_device *qdev,
749 struct qxl_surface *surf)
750 {
751 struct qxl_head *head;
752 int i;
753
754 memset(surf, 0, sizeof(*surf));
755 for (i = 0; i < qdev->monitors_config->max_allowed; i++) {
756 head = qdev->dumb_heads + i;
757 head->x = surf->width;
758 surf->width += head->width;
759 if (surf->height < head->height)
760 surf->height = head->height;
761 }
762 if (surf->width < 64)
763 surf->width = 64;
764 if (surf->height < 64)
765 surf->height = 64;
766 surf->format = SPICE_SURFACE_FMT_32_xRGB;
767 surf->stride = surf->width * 4;
768
769 if (!qdev->dumb_shadow_bo ||
770 qdev->dumb_shadow_bo->surf.width != surf->width ||
771 qdev->dumb_shadow_bo->surf.height != surf->height)
772 DRM_DEBUG("%dx%d\n", surf->width, surf->height);
773 }
774
775 static int qxl_plane_prepare_fb(struct drm_plane *plane,
776 struct drm_plane_state *new_state)
777 {
778 struct qxl_device *qdev = plane->dev->dev_private;
779 struct drm_gem_object *obj;
780 struct qxl_bo *user_bo;
781 struct qxl_surface surf;
782 int ret;
783
784 if (!new_state->fb)
785 return 0;
786
787 obj = new_state->fb->obj[0];
788 user_bo = gem_to_qxl_bo(obj);
789
790 if (plane->type == DRM_PLANE_TYPE_PRIMARY &&
791 user_bo->is_dumb) {
792 qxl_update_dumb_head(qdev, new_state->crtc->index,
793 user_bo);
794 qxl_calc_dumb_shadow(qdev, &surf);
795 if (!qdev->dumb_shadow_bo ||
796 qdev->dumb_shadow_bo->surf.width != surf.width ||
797 qdev->dumb_shadow_bo->surf.height != surf.height) {
798 if (qdev->dumb_shadow_bo) {
799 drm_gem_object_put_unlocked
800 (&qdev->dumb_shadow_bo->tbo.base);
801 qdev->dumb_shadow_bo = NULL;
802 }
803 qxl_bo_create(qdev, surf.height * surf.stride,
804 true, true, QXL_GEM_DOMAIN_SURFACE, &surf,
805 &qdev->dumb_shadow_bo);
806 }
807 if (user_bo->shadow != qdev->dumb_shadow_bo) {
808 if (user_bo->shadow) {
809 drm_gem_object_put_unlocked
810 (&user_bo->shadow->tbo.base);
811 user_bo->shadow = NULL;
812 }
813 drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base);
814 user_bo->shadow = qdev->dumb_shadow_bo;
815 }
816 }
817
818 ret = qxl_bo_pin(user_bo);
819 if (ret)
820 return ret;
821
822 return 0;
823 }
824
825 static void qxl_plane_cleanup_fb(struct drm_plane *plane,
826 struct drm_plane_state *old_state)
827 {
828 struct drm_gem_object *obj;
829 struct qxl_bo *user_bo;
830
831 if (!old_state->fb) {
832 /*
833 * we never executed prepare_fb, so there's nothing to
834 * unpin.
835 */
836 return;
837 }
838
839 obj = old_state->fb->obj[0];
840 user_bo = gem_to_qxl_bo(obj);
841 qxl_bo_unpin(user_bo);
842
843 if (old_state->fb != plane->state->fb && user_bo->shadow) {
844 drm_gem_object_put_unlocked(&user_bo->shadow->tbo.base);
845 user_bo->shadow = NULL;
846 }
847 }
848
849 static const uint32_t qxl_cursor_plane_formats[] = {
850 DRM_FORMAT_ARGB8888,
851 };
852
853 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
854 .atomic_update = qxl_cursor_atomic_update,
855 .atomic_disable = qxl_cursor_atomic_disable,
856 .prepare_fb = qxl_plane_prepare_fb,
857 .cleanup_fb = qxl_plane_cleanup_fb,
858 };
859
860 static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
861 .update_plane = drm_atomic_helper_update_plane,
862 .disable_plane = drm_atomic_helper_disable_plane,
863 .destroy = drm_primary_helper_destroy,
864 .reset = drm_atomic_helper_plane_reset,
865 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
866 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
867 };
868
869 static const uint32_t qxl_primary_plane_formats[] = {
870 DRM_FORMAT_XRGB8888,
871 DRM_FORMAT_ARGB8888,
872 };
873
874 static const struct drm_plane_helper_funcs primary_helper_funcs = {
875 .atomic_check = qxl_primary_atomic_check,
876 .atomic_update = qxl_primary_atomic_update,
877 .atomic_disable = qxl_primary_atomic_disable,
878 .prepare_fb = qxl_plane_prepare_fb,
879 .cleanup_fb = qxl_plane_cleanup_fb,
880 };
881
882 static const struct drm_plane_funcs qxl_primary_plane_funcs = {
883 .update_plane = drm_atomic_helper_update_plane,
884 .disable_plane = drm_atomic_helper_disable_plane,
885 .destroy = drm_primary_helper_destroy,
886 .reset = drm_atomic_helper_plane_reset,
887 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
888 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
889 };
890
891 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
892 unsigned int possible_crtcs,
893 enum drm_plane_type type)
894 {
895 const struct drm_plane_helper_funcs *helper_funcs = NULL;
896 struct drm_plane *plane;
897 const struct drm_plane_funcs *funcs;
898 const uint32_t *formats;
899 int num_formats;
900 int err;
901
902 if (type == DRM_PLANE_TYPE_PRIMARY) {
903 funcs = &qxl_primary_plane_funcs;
904 formats = qxl_primary_plane_formats;
905 num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
906 helper_funcs = &primary_helper_funcs;
907 } else if (type == DRM_PLANE_TYPE_CURSOR) {
908 funcs = &qxl_cursor_plane_funcs;
909 formats = qxl_cursor_plane_formats;
910 helper_funcs = &qxl_cursor_helper_funcs;
911 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats);
912 } else {
913 return ERR_PTR(-EINVAL);
914 }
915
916 plane = kzalloc(sizeof(*plane), GFP_KERNEL);
917 if (!plane)
918 return ERR_PTR(-ENOMEM);
919
920 err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs,
921 funcs, formats, num_formats,
922 NULL, type, NULL);
923 if (err)
924 goto free_plane;
925
926 drm_plane_helper_add(plane, helper_funcs);
927
928 return plane;
929
930 free_plane:
931 kfree(plane);
932 return ERR_PTR(-EINVAL);
933 }
934
935 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
936 {
937 struct qxl_crtc *qxl_crtc;
938 struct drm_plane *primary, *cursor;
939 struct qxl_device *qdev = dev->dev_private;
940 int r;
941
942 qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
943 if (!qxl_crtc)
944 return -ENOMEM;
945
946 primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY);
947 if (IS_ERR(primary)) {
948 r = -ENOMEM;
949 goto free_mem;
950 }
951
952 cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR);
953 if (IS_ERR(cursor)) {
954 r = -ENOMEM;
955 goto clean_primary;
956 }
957
958 r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor,
959 &qxl_crtc_funcs, NULL);
960 if (r)
961 goto clean_cursor;
962
963 qxl_crtc->index = crtc_id;
964 drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
965 return 0;
966
967 clean_cursor:
968 drm_plane_cleanup(cursor);
969 kfree(cursor);
970 clean_primary:
971 drm_plane_cleanup(primary);
972 kfree(primary);
973 free_mem:
974 kfree(qxl_crtc);
975 return r;
976 }
977
978 static int qxl_conn_get_modes(struct drm_connector *connector)
979 {
980 struct drm_device *dev = connector->dev;
981 struct qxl_device *qdev = dev->dev_private;
982 struct qxl_output *output = drm_connector_to_qxl_output(connector);
983 unsigned int pwidth = 1024;
984 unsigned int pheight = 768;
985 int ret = 0;
986
987 if (qdev->client_monitors_config) {
988 struct qxl_head *head;
989 head = &qdev->client_monitors_config->heads[output->index];
990 if (head->width)
991 pwidth = head->width;
992 if (head->height)
993 pheight = head->height;
994 }
995
996 ret += drm_add_modes_noedid(connector, 8192, 8192);
997 ret += qxl_add_extra_modes(connector);
998 ret += qxl_add_monitors_config_modes(connector);
999 drm_set_preferred_mode(connector, pwidth, pheight);
1000 return ret;
1001 }
1002
1003 static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector,
1004 struct drm_display_mode *mode)
1005 {
1006 struct drm_device *ddev = connector->dev;
1007 struct qxl_device *qdev = ddev->dev_private;
1008
1009 if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0)
1010 return MODE_BAD;
1011
1012 return MODE_OK;
1013 }
1014
1015 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
1016 {
1017 struct qxl_output *qxl_output =
1018 drm_connector_to_qxl_output(connector);
1019
1020 DRM_DEBUG("\n");
1021 return &qxl_output->enc;
1022 }
1023
1024 static const struct drm_encoder_helper_funcs qxl_enc_helper_funcs = {
1025 };
1026
1027 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
1028 .get_modes = qxl_conn_get_modes,
1029 .mode_valid = qxl_conn_mode_valid,
1030 .best_encoder = qxl_best_encoder,
1031 };
1032
1033 static enum drm_connector_status qxl_conn_detect(
1034 struct drm_connector *connector,
1035 bool force)
1036 {
1037 struct qxl_output *output =
1038 drm_connector_to_qxl_output(connector);
1039 struct drm_device *ddev = connector->dev;
1040 struct qxl_device *qdev = ddev->dev_private;
1041 bool connected = false;
1042
1043 /* The first monitor is always connected */
1044 if (!qdev->client_monitors_config) {
1045 if (output->index == 0)
1046 connected = true;
1047 } else
1048 connected = qdev->client_monitors_config->count > output->index &&
1049 qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
1050
1051 DRM_DEBUG("#%d connected: %d\n", output->index, connected);
1052
1053 return connected ? connector_status_connected
1054 : connector_status_disconnected;
1055 }
1056
1057 static void qxl_conn_destroy(struct drm_connector *connector)
1058 {
1059 struct qxl_output *qxl_output =
1060 drm_connector_to_qxl_output(connector);
1061
1062 drm_connector_unregister(connector);
1063 drm_connector_cleanup(connector);
1064 kfree(qxl_output);
1065 }
1066
1067 static const struct drm_connector_funcs qxl_connector_funcs = {
1068 .detect = qxl_conn_detect,
1069 .fill_modes = drm_helper_probe_single_connector_modes,
1070 .destroy = qxl_conn_destroy,
1071 .reset = drm_atomic_helper_connector_reset,
1072 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1073 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1074 };
1075
1076 static void qxl_enc_destroy(struct drm_encoder *encoder)
1077 {
1078 drm_encoder_cleanup(encoder);
1079 }
1080
1081 static const struct drm_encoder_funcs qxl_enc_funcs = {
1082 .destroy = qxl_enc_destroy,
1083 };
1084
1085 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1086 {
1087 if (qdev->hotplug_mode_update_property)
1088 return 0;
1089
1090 qdev->hotplug_mode_update_property =
1091 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1092 "hotplug_mode_update", 0, 1);
1093
1094 return 0;
1095 }
1096
1097 static int qdev_output_init(struct drm_device *dev, int num_output)
1098 {
1099 struct qxl_device *qdev = dev->dev_private;
1100 struct qxl_output *qxl_output;
1101 struct drm_connector *connector;
1102 struct drm_encoder *encoder;
1103
1104 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1105 if (!qxl_output)
1106 return -ENOMEM;
1107
1108 qxl_output->index = num_output;
1109
1110 connector = &qxl_output->base;
1111 encoder = &qxl_output->enc;
1112 drm_connector_init(dev, &qxl_output->base,
1113 &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1114
1115 drm_encoder_init(dev, &qxl_output->enc, &qxl_enc_funcs,
1116 DRM_MODE_ENCODER_VIRTUAL, NULL);
1117
1118 /* we get HPD via client monitors config */
1119 connector->polled = DRM_CONNECTOR_POLL_HPD;
1120 encoder->possible_crtcs = 1 << num_output;
1121 drm_connector_attach_encoder(&qxl_output->base,
1122 &qxl_output->enc);
1123 drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
1124 drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1125
1126 drm_object_attach_property(&connector->base,
1127 qdev->hotplug_mode_update_property, 0);
1128 drm_object_attach_property(&connector->base,
1129 dev->mode_config.suggested_x_property, 0);
1130 drm_object_attach_property(&connector->base,
1131 dev->mode_config.suggested_y_property, 0);
1132 return 0;
1133 }
1134
1135 static struct drm_framebuffer *
1136 qxl_user_framebuffer_create(struct drm_device *dev,
1137 struct drm_file *file_priv,
1138 const struct drm_mode_fb_cmd2 *mode_cmd)
1139 {
1140 return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd,
1141 &qxl_fb_funcs);
1142 }
1143
1144 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1145 .fb_create = qxl_user_framebuffer_create,
1146 .atomic_check = drm_atomic_helper_check,
1147 .atomic_commit = drm_atomic_helper_commit,
1148 };
1149
1150 int qxl_create_monitors_object(struct qxl_device *qdev)
1151 {
1152 int ret;
1153 struct drm_gem_object *gobj;
1154 int monitors_config_size = sizeof(struct qxl_monitors_config) +
1155 qxl_num_crtc * sizeof(struct qxl_head);
1156
1157 ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1158 QXL_GEM_DOMAIN_VRAM,
1159 false, false, NULL, &gobj);
1160 if (ret) {
1161 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1162 return -ENOMEM;
1163 }
1164 qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1165
1166 ret = qxl_bo_pin(qdev->monitors_config_bo);
1167 if (ret)
1168 return ret;
1169
1170 qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1171
1172 qdev->monitors_config = qdev->monitors_config_bo->kptr;
1173 qdev->ram_header->monitors_config =
1174 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1175
1176 memset(qdev->monitors_config, 0, monitors_config_size);
1177 qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]),
1178 GFP_KERNEL);
1179 if (!qdev->dumb_heads) {
1180 qxl_destroy_monitors_object(qdev);
1181 return -ENOMEM;
1182 }
1183 return 0;
1184 }
1185
1186 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1187 {
1188 int ret;
1189
1190 qdev->monitors_config = NULL;
1191 qdev->ram_header->monitors_config = 0;
1192
1193 qxl_bo_kunmap(qdev->monitors_config_bo);
1194 ret = qxl_bo_unpin(qdev->monitors_config_bo);
1195 if (ret)
1196 return ret;
1197
1198 qxl_bo_unref(&qdev->monitors_config_bo);
1199 return 0;
1200 }
1201
1202 int qxl_modeset_init(struct qxl_device *qdev)
1203 {
1204 int i;
1205 int ret;
1206
1207 drm_mode_config_init(&qdev->ddev);
1208
1209 ret = qxl_create_monitors_object(qdev);
1210 if (ret)
1211 return ret;
1212
1213 qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
1214
1215 /* modes will be validated against the framebuffer size */
1216 qdev->ddev.mode_config.min_width = 0;
1217 qdev->ddev.mode_config.min_height = 0;
1218 qdev->ddev.mode_config.max_width = 8192;
1219 qdev->ddev.mode_config.max_height = 8192;
1220
1221 qdev->ddev.mode_config.fb_base = qdev->vram_base;
1222
1223 drm_mode_create_suggested_offset_properties(&qdev->ddev);
1224 qxl_mode_create_hotplug_mode_update_property(qdev);
1225
1226 for (i = 0 ; i < qxl_num_crtc; ++i) {
1227 qdev_crtc_init(&qdev->ddev, i);
1228 qdev_output_init(&qdev->ddev, i);
1229 }
1230
1231 qxl_display_read_client_monitors_config(qdev);
1232
1233 drm_mode_config_reset(&qdev->ddev);
1234 return 0;
1235 }
1236
1237 void qxl_modeset_fini(struct qxl_device *qdev)
1238 {
1239 qxl_destroy_monitors_object(qdev);
1240 drm_mode_config_cleanup(&qdev->ddev);
1241 }
Linux with added FPC-III support