Loading...
Note: File does not exist in v3.1.
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_simple_kms_helper.h>
35
36#include "qxl_drv.h"
37#include "qxl_object.h"
38
39static bool qxl_head_enabled(struct qxl_head *head)
40{
41 return head->width && head->height;
42}
43
44static 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
63enum {
64 MONITORS_CONFIG_MODIFIED,
65 MONITORS_CONFIG_UNCHANGED,
66 MONITORS_CONFIG_BAD_CRC,
67 MONITORS_CONFIG_ERROR,
68};
69
70static 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
143static 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
162void 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
196static 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
212static 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
218static 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 = to_qxl(dev);
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
242static int qxl_add_monitors_config_modes(struct drm_connector *connector)
243{
244 struct drm_device *dev = connector->dev;
245 struct qxl_device *qdev = to_qxl(dev);
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
265static struct mode_size {
266 int w;
267 int h;
268} extra_modes[] = {
269 { 720, 480},
270 {1152, 768},
271 {1280, 854},
272};
273
274static 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
286static 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
309static 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 = to_qxl(dev);
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
372static void qxl_crtc_atomic_flush(struct drm_crtc *crtc,
373 struct drm_crtc_state *old_crtc_state)
374{
375 qxl_crtc_update_monitors_config(crtc, "flush");
376}
377
378static void qxl_crtc_destroy(struct drm_crtc *crtc)
379{
380 struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
381
382 qxl_bo_unref(&qxl_crtc->cursor_bo);
383 drm_crtc_cleanup(crtc);
384 kfree(qxl_crtc);
385}
386
387static const struct drm_crtc_funcs qxl_crtc_funcs = {
388 .set_config = drm_atomic_helper_set_config,
389 .destroy = qxl_crtc_destroy,
390 .page_flip = drm_atomic_helper_page_flip,
391 .reset = drm_atomic_helper_crtc_reset,
392 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
393 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
394};
395
396static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
397 struct drm_file *file_priv,
398 unsigned int flags, unsigned int color,
399 struct drm_clip_rect *clips,
400 unsigned int num_clips)
401{
402 /* TODO: vmwgfx where this was cribbed from had locking. Why? */
403 struct qxl_device *qdev = to_qxl(fb->dev);
404 struct drm_clip_rect norect;
405 struct qxl_bo *qobj;
406 bool is_primary;
407 int inc = 1;
408
409 drm_modeset_lock_all(fb->dev);
410
411 qobj = gem_to_qxl_bo(fb->obj[0]);
412 /* if we aren't primary surface ignore this */
413 is_primary = qobj->shadow ? qobj->shadow->is_primary : qobj->is_primary;
414 if (!is_primary) {
415 drm_modeset_unlock_all(fb->dev);
416 return 0;
417 }
418
419 if (!num_clips) {
420 num_clips = 1;
421 clips = &norect;
422 norect.x1 = norect.y1 = 0;
423 norect.x2 = fb->width;
424 norect.y2 = fb->height;
425 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
426 num_clips /= 2;
427 inc = 2; /* skip source rects */
428 }
429
430 qxl_draw_dirty_fb(qdev, fb, qobj, flags, color,
431 clips, num_clips, inc, 0);
432
433 drm_modeset_unlock_all(fb->dev);
434
435 return 0;
436}
437
438static const struct drm_framebuffer_funcs qxl_fb_funcs = {
439 .destroy = drm_gem_fb_destroy,
440 .dirty = qxl_framebuffer_surface_dirty,
441 .create_handle = drm_gem_fb_create_handle,
442};
443
444static void qxl_crtc_atomic_enable(struct drm_crtc *crtc,
445 struct drm_crtc_state *old_state)
446{
447 qxl_crtc_update_monitors_config(crtc, "enable");
448}
449
450static void qxl_crtc_atomic_disable(struct drm_crtc *crtc,
451 struct drm_crtc_state *old_state)
452{
453 qxl_crtc_update_monitors_config(crtc, "disable");
454}
455
456static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
457 .atomic_flush = qxl_crtc_atomic_flush,
458 .atomic_enable = qxl_crtc_atomic_enable,
459 .atomic_disable = qxl_crtc_atomic_disable,
460};
461
462static int qxl_primary_atomic_check(struct drm_plane *plane,
463 struct drm_plane_state *state)
464{
465 struct qxl_device *qdev = to_qxl(plane->dev);
466 struct qxl_bo *bo;
467
468 if (!state->crtc || !state->fb)
469 return 0;
470
471 bo = gem_to_qxl_bo(state->fb->obj[0]);
472
473 return qxl_check_framebuffer(qdev, bo);
474}
475
476static int qxl_primary_apply_cursor(struct drm_plane *plane)
477{
478 struct drm_device *dev = plane->dev;
479 struct qxl_device *qdev = to_qxl(dev);
480 struct drm_framebuffer *fb = plane->state->fb;
481 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
482 struct qxl_cursor_cmd *cmd;
483 struct qxl_release *release;
484 int ret = 0;
485
486 if (!qcrtc->cursor_bo)
487 return 0;
488
489 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
490 QXL_RELEASE_CURSOR_CMD,
491 &release, NULL);
492 if (ret)
493 return ret;
494
495 ret = qxl_release_list_add(release, qcrtc->cursor_bo);
496 if (ret)
497 goto out_free_release;
498
499 ret = qxl_release_reserve_list(release, false);
500 if (ret)
501 goto out_free_release;
502
503 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
504 cmd->type = QXL_CURSOR_SET;
505 cmd->u.set.position.x = plane->state->crtc_x + fb->hot_x;
506 cmd->u.set.position.y = plane->state->crtc_y + fb->hot_y;
507
508 cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0);
509
510 cmd->u.set.visible = 1;
511 qxl_release_unmap(qdev, release, &cmd->release_info);
512
513 qxl_release_fence_buffer_objects(release);
514 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
515
516 return ret;
517
518out_free_release:
519 qxl_release_free(qdev, release);
520 return ret;
521}
522
523static void qxl_primary_atomic_update(struct drm_plane *plane,
524 struct drm_plane_state *old_state)
525{
526 struct qxl_device *qdev = to_qxl(plane->dev);
527 struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]);
528 struct qxl_bo *primary;
529 struct drm_clip_rect norect = {
530 .x1 = 0,
531 .y1 = 0,
532 .x2 = plane->state->fb->width,
533 .y2 = plane->state->fb->height
534 };
535 uint32_t dumb_shadow_offset = 0;
536
537 primary = bo->shadow ? bo->shadow : bo;
538
539 if (!primary->is_primary) {
540 if (qdev->primary_bo)
541 qxl_io_destroy_primary(qdev);
542 qxl_io_create_primary(qdev, primary);
543 qxl_primary_apply_cursor(plane);
544 }
545
546 if (bo->is_dumb)
547 dumb_shadow_offset =
548 qdev->dumb_heads[plane->state->crtc->index].x;
549
550 qxl_draw_dirty_fb(qdev, plane->state->fb, bo, 0, 0, &norect, 1, 1,
551 dumb_shadow_offset);
552}
553
554static void qxl_primary_atomic_disable(struct drm_plane *plane,
555 struct drm_plane_state *old_state)
556{
557 struct qxl_device *qdev = to_qxl(plane->dev);
558
559 if (old_state->fb) {
560 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]);
561
562 if (bo->is_primary) {
563 qxl_io_destroy_primary(qdev);
564 bo->is_primary = false;
565 }
566 }
567}
568
569static void qxl_cursor_atomic_update(struct drm_plane *plane,
570 struct drm_plane_state *old_state)
571{
572 struct drm_device *dev = plane->dev;
573 struct qxl_device *qdev = to_qxl(dev);
574 struct drm_framebuffer *fb = plane->state->fb;
575 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
576 struct qxl_release *release;
577 struct qxl_cursor_cmd *cmd;
578 struct qxl_cursor *cursor;
579 struct drm_gem_object *obj;
580 struct qxl_bo *cursor_bo = NULL, *user_bo = NULL, *old_cursor_bo = NULL;
581 int ret;
582 void *user_ptr;
583 int size = 64*64*4;
584
585 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
586 QXL_RELEASE_CURSOR_CMD,
587 &release, NULL);
588 if (ret)
589 return;
590
591 if (fb != old_state->fb) {
592 obj = fb->obj[0];
593 user_bo = gem_to_qxl_bo(obj);
594
595 /* pinning is done in the prepare/cleanup framevbuffer */
596 ret = qxl_bo_kmap(user_bo, &user_ptr);
597 if (ret)
598 goto out_free_release;
599
600 ret = qxl_alloc_bo_reserved(qdev, release,
601 sizeof(struct qxl_cursor) + size,
602 &cursor_bo);
603 if (ret)
604 goto out_kunmap;
605
606 ret = qxl_bo_pin(cursor_bo);
607 if (ret)
608 goto out_free_bo;
609
610 ret = qxl_release_reserve_list(release, true);
611 if (ret)
612 goto out_unpin;
613
614 ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
615 if (ret)
616 goto out_backoff;
617
618 cursor->header.unique = 0;
619 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
620 cursor->header.width = 64;
621 cursor->header.height = 64;
622 cursor->header.hot_spot_x = fb->hot_x;
623 cursor->header.hot_spot_y = fb->hot_y;
624 cursor->data_size = size;
625 cursor->chunk.next_chunk = 0;
626 cursor->chunk.prev_chunk = 0;
627 cursor->chunk.data_size = size;
628 memcpy(cursor->chunk.data, user_ptr, size);
629 qxl_bo_kunmap(cursor_bo);
630 qxl_bo_kunmap(user_bo);
631
632 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
633 cmd->u.set.visible = 1;
634 cmd->u.set.shape = qxl_bo_physical_address(qdev,
635 cursor_bo, 0);
636 cmd->type = QXL_CURSOR_SET;
637
638 old_cursor_bo = qcrtc->cursor_bo;
639 qcrtc->cursor_bo = cursor_bo;
640 cursor_bo = NULL;
641 } else {
642
643 ret = qxl_release_reserve_list(release, true);
644 if (ret)
645 goto out_free_release;
646
647 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
648 cmd->type = QXL_CURSOR_MOVE;
649 }
650
651 cmd->u.position.x = plane->state->crtc_x + fb->hot_x;
652 cmd->u.position.y = plane->state->crtc_y + fb->hot_y;
653
654 qxl_release_unmap(qdev, release, &cmd->release_info);
655 qxl_release_fence_buffer_objects(release);
656 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
657
658 if (old_cursor_bo != NULL)
659 qxl_bo_unpin(old_cursor_bo);
660 qxl_bo_unref(&old_cursor_bo);
661 qxl_bo_unref(&cursor_bo);
662
663 return;
664
665out_backoff:
666 qxl_release_backoff_reserve_list(release);
667out_unpin:
668 qxl_bo_unpin(cursor_bo);
669out_free_bo:
670 qxl_bo_unref(&cursor_bo);
671out_kunmap:
672 qxl_bo_kunmap(user_bo);
673out_free_release:
674 qxl_release_free(qdev, release);
675 return;
676
677}
678
679static void qxl_cursor_atomic_disable(struct drm_plane *plane,
680 struct drm_plane_state *old_state)
681{
682 struct qxl_device *qdev = to_qxl(plane->dev);
683 struct qxl_release *release;
684 struct qxl_cursor_cmd *cmd;
685 int ret;
686
687 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
688 QXL_RELEASE_CURSOR_CMD,
689 &release, NULL);
690 if (ret)
691 return;
692
693 ret = qxl_release_reserve_list(release, true);
694 if (ret) {
695 qxl_release_free(qdev, release);
696 return;
697 }
698
699 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
700 cmd->type = QXL_CURSOR_HIDE;
701 qxl_release_unmap(qdev, release, &cmd->release_info);
702
703 qxl_release_fence_buffer_objects(release);
704 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
705}
706
707static void qxl_update_dumb_head(struct qxl_device *qdev,
708 int index, struct qxl_bo *bo)
709{
710 uint32_t width, height;
711
712 if (index >= qdev->monitors_config->max_allowed)
713 return;
714
715 if (bo && bo->is_dumb) {
716 width = bo->surf.width;
717 height = bo->surf.height;
718 } else {
719 width = 0;
720 height = 0;
721 }
722
723 if (qdev->dumb_heads[index].width == width &&
724 qdev->dumb_heads[index].height == height)
725 return;
726
727 DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index,
728 qdev->dumb_heads[index].width,
729 qdev->dumb_heads[index].height,
730 width, height);
731 qdev->dumb_heads[index].width = width;
732 qdev->dumb_heads[index].height = height;
733}
734
735static void qxl_calc_dumb_shadow(struct qxl_device *qdev,
736 struct qxl_surface *surf)
737{
738 struct qxl_head *head;
739 int i;
740
741 memset(surf, 0, sizeof(*surf));
742 for (i = 0; i < qdev->monitors_config->max_allowed; i++) {
743 head = qdev->dumb_heads + i;
744 head->x = surf->width;
745 surf->width += head->width;
746 if (surf->height < head->height)
747 surf->height = head->height;
748 }
749 if (surf->width < 64)
750 surf->width = 64;
751 if (surf->height < 64)
752 surf->height = 64;
753 surf->format = SPICE_SURFACE_FMT_32_xRGB;
754 surf->stride = surf->width * 4;
755
756 if (!qdev->dumb_shadow_bo ||
757 qdev->dumb_shadow_bo->surf.width != surf->width ||
758 qdev->dumb_shadow_bo->surf.height != surf->height)
759 DRM_DEBUG("%dx%d\n", surf->width, surf->height);
760}
761
762static int qxl_plane_prepare_fb(struct drm_plane *plane,
763 struct drm_plane_state *new_state)
764{
765 struct qxl_device *qdev = to_qxl(plane->dev);
766 struct drm_gem_object *obj;
767 struct qxl_bo *user_bo;
768 struct qxl_surface surf;
769 int ret;
770
771 if (!new_state->fb)
772 return 0;
773
774 obj = new_state->fb->obj[0];
775 user_bo = gem_to_qxl_bo(obj);
776
777 if (plane->type == DRM_PLANE_TYPE_PRIMARY &&
778 user_bo->is_dumb) {
779 qxl_update_dumb_head(qdev, new_state->crtc->index,
780 user_bo);
781 qxl_calc_dumb_shadow(qdev, &surf);
782 if (!qdev->dumb_shadow_bo ||
783 qdev->dumb_shadow_bo->surf.width != surf.width ||
784 qdev->dumb_shadow_bo->surf.height != surf.height) {
785 if (qdev->dumb_shadow_bo) {
786 drm_gem_object_put
787 (&qdev->dumb_shadow_bo->tbo.base);
788 qdev->dumb_shadow_bo = NULL;
789 }
790 qxl_bo_create(qdev, surf.height * surf.stride,
791 true, true, QXL_GEM_DOMAIN_SURFACE, &surf,
792 &qdev->dumb_shadow_bo);
793 }
794 if (user_bo->shadow != qdev->dumb_shadow_bo) {
795 if (user_bo->shadow) {
796 drm_gem_object_put
797 (&user_bo->shadow->tbo.base);
798 user_bo->shadow = NULL;
799 }
800 drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base);
801 user_bo->shadow = qdev->dumb_shadow_bo;
802 }
803 }
804
805 ret = qxl_bo_pin(user_bo);
806 if (ret)
807 return ret;
808
809 return 0;
810}
811
812static void qxl_plane_cleanup_fb(struct drm_plane *plane,
813 struct drm_plane_state *old_state)
814{
815 struct drm_gem_object *obj;
816 struct qxl_bo *user_bo;
817
818 if (!old_state->fb) {
819 /*
820 * we never executed prepare_fb, so there's nothing to
821 * unpin.
822 */
823 return;
824 }
825
826 obj = old_state->fb->obj[0];
827 user_bo = gem_to_qxl_bo(obj);
828 qxl_bo_unpin(user_bo);
829
830 if (old_state->fb != plane->state->fb && user_bo->shadow) {
831 drm_gem_object_put(&user_bo->shadow->tbo.base);
832 user_bo->shadow = NULL;
833 }
834}
835
836static const uint32_t qxl_cursor_plane_formats[] = {
837 DRM_FORMAT_ARGB8888,
838};
839
840static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
841 .atomic_update = qxl_cursor_atomic_update,
842 .atomic_disable = qxl_cursor_atomic_disable,
843 .prepare_fb = qxl_plane_prepare_fb,
844 .cleanup_fb = qxl_plane_cleanup_fb,
845};
846
847static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
848 .update_plane = drm_atomic_helper_update_plane,
849 .disable_plane = drm_atomic_helper_disable_plane,
850 .destroy = drm_primary_helper_destroy,
851 .reset = drm_atomic_helper_plane_reset,
852 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
853 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
854};
855
856static const uint32_t qxl_primary_plane_formats[] = {
857 DRM_FORMAT_XRGB8888,
858 DRM_FORMAT_ARGB8888,
859};
860
861static const struct drm_plane_helper_funcs primary_helper_funcs = {
862 .atomic_check = qxl_primary_atomic_check,
863 .atomic_update = qxl_primary_atomic_update,
864 .atomic_disable = qxl_primary_atomic_disable,
865 .prepare_fb = qxl_plane_prepare_fb,
866 .cleanup_fb = qxl_plane_cleanup_fb,
867};
868
869static const struct drm_plane_funcs qxl_primary_plane_funcs = {
870 .update_plane = drm_atomic_helper_update_plane,
871 .disable_plane = drm_atomic_helper_disable_plane,
872 .destroy = drm_primary_helper_destroy,
873 .reset = drm_atomic_helper_plane_reset,
874 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
875 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
876};
877
878static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
879 unsigned int possible_crtcs,
880 enum drm_plane_type type)
881{
882 const struct drm_plane_helper_funcs *helper_funcs = NULL;
883 struct drm_plane *plane;
884 const struct drm_plane_funcs *funcs;
885 const uint32_t *formats;
886 int num_formats;
887 int err;
888
889 if (type == DRM_PLANE_TYPE_PRIMARY) {
890 funcs = &qxl_primary_plane_funcs;
891 formats = qxl_primary_plane_formats;
892 num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
893 helper_funcs = &primary_helper_funcs;
894 } else if (type == DRM_PLANE_TYPE_CURSOR) {
895 funcs = &qxl_cursor_plane_funcs;
896 formats = qxl_cursor_plane_formats;
897 helper_funcs = &qxl_cursor_helper_funcs;
898 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats);
899 } else {
900 return ERR_PTR(-EINVAL);
901 }
902
903 plane = kzalloc(sizeof(*plane), GFP_KERNEL);
904 if (!plane)
905 return ERR_PTR(-ENOMEM);
906
907 err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs,
908 funcs, formats, num_formats,
909 NULL, type, NULL);
910 if (err)
911 goto free_plane;
912
913 drm_plane_helper_add(plane, helper_funcs);
914
915 return plane;
916
917free_plane:
918 kfree(plane);
919 return ERR_PTR(-EINVAL);
920}
921
922static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
923{
924 struct qxl_crtc *qxl_crtc;
925 struct drm_plane *primary, *cursor;
926 struct qxl_device *qdev = to_qxl(dev);
927 int r;
928
929 qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
930 if (!qxl_crtc)
931 return -ENOMEM;
932
933 primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY);
934 if (IS_ERR(primary)) {
935 r = -ENOMEM;
936 goto free_mem;
937 }
938
939 cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR);
940 if (IS_ERR(cursor)) {
941 r = -ENOMEM;
942 goto clean_primary;
943 }
944
945 r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor,
946 &qxl_crtc_funcs, NULL);
947 if (r)
948 goto clean_cursor;
949
950 qxl_crtc->index = crtc_id;
951 drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
952 return 0;
953
954clean_cursor:
955 drm_plane_cleanup(cursor);
956 kfree(cursor);
957clean_primary:
958 drm_plane_cleanup(primary);
959 kfree(primary);
960free_mem:
961 kfree(qxl_crtc);
962 return r;
963}
964
965static int qxl_conn_get_modes(struct drm_connector *connector)
966{
967 struct drm_device *dev = connector->dev;
968 struct qxl_device *qdev = to_qxl(dev);
969 struct qxl_output *output = drm_connector_to_qxl_output(connector);
970 unsigned int pwidth = 1024;
971 unsigned int pheight = 768;
972 int ret = 0;
973
974 if (qdev->client_monitors_config) {
975 struct qxl_head *head;
976 head = &qdev->client_monitors_config->heads[output->index];
977 if (head->width)
978 pwidth = head->width;
979 if (head->height)
980 pheight = head->height;
981 }
982
983 ret += drm_add_modes_noedid(connector, 8192, 8192);
984 ret += qxl_add_extra_modes(connector);
985 ret += qxl_add_monitors_config_modes(connector);
986 drm_set_preferred_mode(connector, pwidth, pheight);
987 return ret;
988}
989
990static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector,
991 struct drm_display_mode *mode)
992{
993 struct drm_device *ddev = connector->dev;
994 struct qxl_device *qdev = to_qxl(ddev);
995
996 if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0)
997 return MODE_BAD;
998
999 return MODE_OK;
1000}
1001
1002static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
1003{
1004 struct qxl_output *qxl_output =
1005 drm_connector_to_qxl_output(connector);
1006
1007 DRM_DEBUG("\n");
1008 return &qxl_output->enc;
1009}
1010
1011static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
1012 .get_modes = qxl_conn_get_modes,
1013 .mode_valid = qxl_conn_mode_valid,
1014 .best_encoder = qxl_best_encoder,
1015};
1016
1017static enum drm_connector_status qxl_conn_detect(
1018 struct drm_connector *connector,
1019 bool force)
1020{
1021 struct qxl_output *output =
1022 drm_connector_to_qxl_output(connector);
1023 struct drm_device *ddev = connector->dev;
1024 struct qxl_device *qdev = to_qxl(ddev);
1025 bool connected = false;
1026
1027 /* The first monitor is always connected */
1028 if (!qdev->client_monitors_config) {
1029 if (output->index == 0)
1030 connected = true;
1031 } else
1032 connected = qdev->client_monitors_config->count > output->index &&
1033 qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
1034
1035 DRM_DEBUG("#%d connected: %d\n", output->index, connected);
1036
1037 return connected ? connector_status_connected
1038 : connector_status_disconnected;
1039}
1040
1041static void qxl_conn_destroy(struct drm_connector *connector)
1042{
1043 struct qxl_output *qxl_output =
1044 drm_connector_to_qxl_output(connector);
1045
1046 drm_connector_unregister(connector);
1047 drm_connector_cleanup(connector);
1048 kfree(qxl_output);
1049}
1050
1051static const struct drm_connector_funcs qxl_connector_funcs = {
1052 .detect = qxl_conn_detect,
1053 .fill_modes = drm_helper_probe_single_connector_modes,
1054 .destroy = qxl_conn_destroy,
1055 .reset = drm_atomic_helper_connector_reset,
1056 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1057 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1058};
1059
1060static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1061{
1062 if (qdev->hotplug_mode_update_property)
1063 return 0;
1064
1065 qdev->hotplug_mode_update_property =
1066 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1067 "hotplug_mode_update", 0, 1);
1068
1069 return 0;
1070}
1071
1072static int qdev_output_init(struct drm_device *dev, int num_output)
1073{
1074 struct qxl_device *qdev = to_qxl(dev);
1075 struct qxl_output *qxl_output;
1076 struct drm_connector *connector;
1077 struct drm_encoder *encoder;
1078 int ret;
1079
1080 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1081 if (!qxl_output)
1082 return -ENOMEM;
1083
1084 qxl_output->index = num_output;
1085
1086 connector = &qxl_output->base;
1087 encoder = &qxl_output->enc;
1088 drm_connector_init(dev, &qxl_output->base,
1089 &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1090
1091 ret = drm_simple_encoder_init(dev, &qxl_output->enc,
1092 DRM_MODE_ENCODER_VIRTUAL);
1093 if (ret) {
1094 drm_err(dev, "drm_simple_encoder_init() failed, error %d\n",
1095 ret);
1096 goto err_drm_connector_cleanup;
1097 }
1098
1099 /* we get HPD via client monitors config */
1100 connector->polled = DRM_CONNECTOR_POLL_HPD;
1101 encoder->possible_crtcs = 1 << num_output;
1102 drm_connector_attach_encoder(&qxl_output->base,
1103 &qxl_output->enc);
1104 drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1105
1106 drm_object_attach_property(&connector->base,
1107 qdev->hotplug_mode_update_property, 0);
1108 drm_object_attach_property(&connector->base,
1109 dev->mode_config.suggested_x_property, 0);
1110 drm_object_attach_property(&connector->base,
1111 dev->mode_config.suggested_y_property, 0);
1112 return 0;
1113
1114err_drm_connector_cleanup:
1115 drm_connector_cleanup(&qxl_output->base);
1116 kfree(qxl_output);
1117 return ret;
1118}
1119
1120static struct drm_framebuffer *
1121qxl_user_framebuffer_create(struct drm_device *dev,
1122 struct drm_file *file_priv,
1123 const struct drm_mode_fb_cmd2 *mode_cmd)
1124{
1125 return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd,
1126 &qxl_fb_funcs);
1127}
1128
1129static const struct drm_mode_config_funcs qxl_mode_funcs = {
1130 .fb_create = qxl_user_framebuffer_create,
1131 .atomic_check = drm_atomic_helper_check,
1132 .atomic_commit = drm_atomic_helper_commit,
1133};
1134
1135int qxl_create_monitors_object(struct qxl_device *qdev)
1136{
1137 int ret;
1138 struct drm_gem_object *gobj;
1139 int monitors_config_size = sizeof(struct qxl_monitors_config) +
1140 qxl_num_crtc * sizeof(struct qxl_head);
1141
1142 ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1143 QXL_GEM_DOMAIN_VRAM,
1144 false, false, NULL, &gobj);
1145 if (ret) {
1146 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1147 return -ENOMEM;
1148 }
1149 qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1150
1151 ret = qxl_bo_pin(qdev->monitors_config_bo);
1152 if (ret)
1153 return ret;
1154
1155 qxl_bo_kmap(qdev->monitors_config_bo, NULL);
1156
1157 qdev->monitors_config = qdev->monitors_config_bo->kptr;
1158 qdev->ram_header->monitors_config =
1159 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1160
1161 memset(qdev->monitors_config, 0, monitors_config_size);
1162 qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]),
1163 GFP_KERNEL);
1164 if (!qdev->dumb_heads) {
1165 qxl_destroy_monitors_object(qdev);
1166 return -ENOMEM;
1167 }
1168 return 0;
1169}
1170
1171int qxl_destroy_monitors_object(struct qxl_device *qdev)
1172{
1173 int ret;
1174
1175 qdev->monitors_config = NULL;
1176 qdev->ram_header->monitors_config = 0;
1177
1178 qxl_bo_kunmap(qdev->monitors_config_bo);
1179 ret = qxl_bo_unpin(qdev->monitors_config_bo);
1180 if (ret)
1181 return ret;
1182
1183 qxl_bo_unref(&qdev->monitors_config_bo);
1184 return 0;
1185}
1186
1187int qxl_modeset_init(struct qxl_device *qdev)
1188{
1189 int i;
1190 int ret;
1191
1192 drm_mode_config_init(&qdev->ddev);
1193
1194 ret = qxl_create_monitors_object(qdev);
1195 if (ret)
1196 return ret;
1197
1198 qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
1199
1200 /* modes will be validated against the framebuffer size */
1201 qdev->ddev.mode_config.min_width = 0;
1202 qdev->ddev.mode_config.min_height = 0;
1203 qdev->ddev.mode_config.max_width = 8192;
1204 qdev->ddev.mode_config.max_height = 8192;
1205
1206 qdev->ddev.mode_config.fb_base = qdev->vram_base;
1207
1208 drm_mode_create_suggested_offset_properties(&qdev->ddev);
1209 qxl_mode_create_hotplug_mode_update_property(qdev);
1210
1211 for (i = 0 ; i < qxl_num_crtc; ++i) {
1212 qdev_crtc_init(&qdev->ddev, i);
1213 qdev_output_init(&qdev->ddev, i);
1214 }
1215
1216 qxl_display_read_client_monitors_config(qdev);
1217
1218 drm_mode_config_reset(&qdev->ddev);
1219 return 0;
1220}
1221
1222void qxl_modeset_fini(struct qxl_device *qdev)
1223{
1224 qxl_destroy_monitors_object(qdev);
1225 drm_mode_config_cleanup(&qdev->ddev);
1226}