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#include <linux/iosys-map.h>
29
30#include <drm/drm_drv.h>
31#include <drm/drm_atomic.h>
32#include <drm/drm_atomic_helper.h>
33#include <drm/drm_edid.h>
34#include <drm/drm_framebuffer.h>
35#include <drm/drm_gem_framebuffer_helper.h>
36#include <drm/drm_plane_helper.h>
37#include <drm/drm_print.h>
38#include <drm/drm_probe_helper.h>
39#include <drm/drm_simple_kms_helper.h>
40#include <drm/drm_gem_atomic_helper.h>
41#include <drm/drm_vblank.h>
42#include <drm/drm_vblank_helper.h>
43
44#include "qxl_drv.h"
45#include "qxl_object.h"
46
47static bool qxl_head_enabled(struct qxl_head *head)
48{
49 return head->width && head->height;
50}
51
52static int qxl_alloc_client_monitors_config(struct qxl_device *qdev,
53 unsigned int count)
54{
55 if (qdev->client_monitors_config &&
56 count > qdev->client_monitors_config->count) {
57 kfree(objp: qdev->client_monitors_config);
58 qdev->client_monitors_config = NULL;
59 }
60 if (!qdev->client_monitors_config) {
61 qdev->client_monitors_config = kzalloc(
62 struct_size(qdev->client_monitors_config,
63 heads, count), GFP_KERNEL);
64 if (!qdev->client_monitors_config)
65 return -ENOMEM;
66 }
67 qdev->client_monitors_config->count = count;
68 return 0;
69}
70
71enum {
72 MONITORS_CONFIG_MODIFIED,
73 MONITORS_CONFIG_UNCHANGED,
74 MONITORS_CONFIG_BAD_CRC,
75 MONITORS_CONFIG_ERROR,
76};
77
78static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
79{
80 int i;
81 int num_monitors;
82 uint32_t crc;
83 int status = MONITORS_CONFIG_UNCHANGED;
84
85 num_monitors = qdev->rom->client_monitors_config.count;
86 crc = crc32(crc: 0, p: (const uint8_t *)&qdev->rom->client_monitors_config,
87 len: sizeof(qdev->rom->client_monitors_config));
88 if (crc != qdev->rom->client_monitors_config_crc)
89 return MONITORS_CONFIG_BAD_CRC;
90 if (!num_monitors) {
91 DRM_DEBUG_KMS("no client monitors configured\n");
92 return status;
93 }
94 if (num_monitors > qxl_num_crtc) {
95 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
96 qxl_num_crtc, num_monitors);
97 num_monitors = qxl_num_crtc;
98 } else {
99 num_monitors = qdev->rom->client_monitors_config.count;
100 }
101 if (qdev->client_monitors_config
102 && (num_monitors != qdev->client_monitors_config->count)) {
103 status = MONITORS_CONFIG_MODIFIED;
104 }
105 if (qxl_alloc_client_monitors_config(qdev, count: num_monitors)) {
106 status = MONITORS_CONFIG_ERROR;
107 return status;
108 }
109 /* we copy max from the client but it isn't used */
110 qdev->client_monitors_config->max_allowed = qxl_num_crtc;
111 for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
112 struct qxl_urect *c_rect =
113 &qdev->rom->client_monitors_config.heads[i];
114 struct qxl_head *client_head =
115 &qdev->client_monitors_config->heads[i];
116 if (client_head->x != c_rect->left) {
117 client_head->x = c_rect->left;
118 status = MONITORS_CONFIG_MODIFIED;
119 }
120 if (client_head->y != c_rect->top) {
121 client_head->y = c_rect->top;
122 status = MONITORS_CONFIG_MODIFIED;
123 }
124 if (client_head->width != c_rect->right - c_rect->left) {
125 client_head->width = c_rect->right - c_rect->left;
126 status = MONITORS_CONFIG_MODIFIED;
127 }
128 if (client_head->height != c_rect->bottom - c_rect->top) {
129 client_head->height = c_rect->bottom - c_rect->top;
130 status = MONITORS_CONFIG_MODIFIED;
131 }
132 if (client_head->surface_id != 0) {
133 client_head->surface_id = 0;
134 status = MONITORS_CONFIG_MODIFIED;
135 }
136 if (client_head->id != i) {
137 client_head->id = i;
138 status = MONITORS_CONFIG_MODIFIED;
139 }
140 if (client_head->flags != 0) {
141 client_head->flags = 0;
142 status = MONITORS_CONFIG_MODIFIED;
143 }
144 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
145 client_head->x, client_head->y);
146 }
147
148 return status;
149}
150
151static void qxl_update_offset_props(struct qxl_device *qdev)
152{
153 struct drm_device *dev = &qdev->ddev;
154 struct drm_connector *connector;
155 struct qxl_output *output;
156 struct qxl_head *head;
157
158 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
159 output = drm_connector_to_qxl_output(connector);
160
161 head = &qdev->client_monitors_config->heads[output->index];
162
163 drm_object_property_set_value(obj: &connector->base,
164 property: dev->mode_config.suggested_x_property, val: head->x);
165 drm_object_property_set_value(obj: &connector->base,
166 property: dev->mode_config.suggested_y_property, val: head->y);
167 }
168}
169
170void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
171{
172 struct drm_device *dev = &qdev->ddev;
173 struct drm_modeset_acquire_ctx ctx;
174 int status, retries, ret;
175
176 for (retries = 0; retries < 10; retries++) {
177 status = qxl_display_copy_rom_client_monitors_config(qdev);
178 if (status != MONITORS_CONFIG_BAD_CRC)
179 break;
180 udelay(usec: 5);
181 }
182 if (status == MONITORS_CONFIG_ERROR) {
183 DRM_DEBUG_KMS("ignoring client monitors config: error");
184 return;
185 }
186 if (status == MONITORS_CONFIG_BAD_CRC) {
187 DRM_DEBUG_KMS("ignoring client monitors config: bad crc");
188 return;
189 }
190 if (status == MONITORS_CONFIG_UNCHANGED) {
191 DRM_DEBUG_KMS("ignoring client monitors config: unchanged");
192 return;
193 }
194
195 DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret);
196 qxl_update_offset_props(qdev);
197 DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
198 if (!drm_helper_hpd_irq_event(dev)) {
199 /* notify that the monitor configuration changed, to
200 adjust at the arbitrary resolution */
201 drm_kms_helper_hotplug_event(dev);
202 }
203}
204
205static int qxl_check_mode(struct qxl_device *qdev,
206 unsigned int width,
207 unsigned int height)
208{
209 unsigned int stride;
210 unsigned int size;
211
212 if (check_mul_overflow(width, 4u, &stride))
213 return -EINVAL;
214 if (check_mul_overflow(stride, height, &size))
215 return -EINVAL;
216 if (size > qdev->vram_size)
217 return -ENOMEM;
218 return 0;
219}
220
221static int qxl_check_framebuffer(struct qxl_device *qdev,
222 struct qxl_bo *bo)
223{
224 return qxl_check_mode(qdev, width: bo->surf.width, height: bo->surf.height);
225}
226
227static int qxl_add_mode(struct drm_connector *connector,
228 unsigned int width,
229 unsigned int height,
230 bool preferred)
231{
232 struct drm_device *dev = connector->dev;
233 struct qxl_device *qdev = to_qxl(dev);
234 struct drm_display_mode *mode = NULL;
235 int rc;
236
237 rc = qxl_check_mode(qdev, width, height);
238 if (rc != 0)
239 return 0;
240
241 mode = drm_cvt_mode(dev, hdisplay: width, vdisplay: height, vrefresh: 60, reduced: false, interlaced: false, margins: false);
242 if (!mode)
243 return 0;
244
245 if (preferred)
246 mode->type |= DRM_MODE_TYPE_PREFERRED;
247 mode->hdisplay = width;
248 mode->vdisplay = height;
249 drm_mode_set_name(mode);
250 drm_mode_probed_add(connector, mode);
251 return 1;
252}
253
254static int qxl_add_monitors_config_modes(struct drm_connector *connector)
255{
256 struct drm_device *dev = connector->dev;
257 struct qxl_device *qdev = to_qxl(dev);
258 struct qxl_output *output = drm_connector_to_qxl_output(connector);
259 int h = output->index;
260 struct qxl_head *head;
261
262 if (!qdev->monitors_config)
263 return 0;
264 if (h >= qxl_num_crtc)
265 return 0;
266 if (!qdev->client_monitors_config)
267 return 0;
268 if (h >= qdev->client_monitors_config->count)
269 return 0;
270
271 head = &qdev->client_monitors_config->heads[h];
272 DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height);
273
274 return qxl_add_mode(connector, width: head->width, height: head->height, preferred: true);
275}
276
277static struct mode_size {
278 int w;
279 int h;
280} extra_modes[] = {
281 { 720, 480},
282 {1152, 768},
283 {1280, 854},
284};
285
286static int qxl_add_extra_modes(struct drm_connector *connector)
287{
288 int i, ret = 0;
289
290 for (i = 0; i < ARRAY_SIZE(extra_modes); i++)
291 ret += qxl_add_mode(connector,
292 width: extra_modes[i].w,
293 height: extra_modes[i].h,
294 preferred: false);
295 return ret;
296}
297
298static void qxl_send_monitors_config(struct qxl_device *qdev)
299{
300 int i;
301
302 BUG_ON(!qdev->ram_header->monitors_config);
303
304 if (qdev->monitors_config->count == 0)
305 return;
306
307 for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
308 struct qxl_head *head = &qdev->monitors_config->heads[i];
309
310 if (head->y > 8192 || head->x > 8192 ||
311 head->width > 8192 || head->height > 8192) {
312 DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
313 i, head->width, head->height,
314 head->x, head->y);
315 return;
316 }
317 }
318 qxl_io_monitors_config(qdev);
319}
320
321static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc,
322 const char *reason)
323{
324 struct drm_device *dev = crtc->dev;
325 struct qxl_device *qdev = to_qxl(dev);
326 struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
327 struct qxl_head head;
328 int oldcount, i = qcrtc->index;
329
330 if (!qdev->primary_bo) {
331 DRM_DEBUG_KMS("no primary surface, skip (%s)\n", reason);
332 return;
333 }
334
335 if (!qdev->monitors_config || qxl_num_crtc <= i)
336 return;
337
338 head.id = i;
339 head.flags = 0;
340 head.surface_id = 0;
341 oldcount = qdev->monitors_config->count;
342 if (crtc->state->active) {
343 struct drm_display_mode *mode = &crtc->mode;
344
345 head.width = mode->hdisplay;
346 head.height = mode->vdisplay;
347 head.x = crtc->x;
348 head.y = crtc->y;
349 if (qdev->monitors_config->count < i + 1)
350 qdev->monitors_config->count = i + 1;
351 if (qdev->primary_bo == qdev->dumb_shadow_bo)
352 head.x += qdev->dumb_heads[i].x;
353 } else if (i > 0) {
354 head.width = 0;
355 head.height = 0;
356 head.x = 0;
357 head.y = 0;
358 if (qdev->monitors_config->count == i + 1)
359 qdev->monitors_config->count = i;
360 } else {
361 DRM_DEBUG_KMS("inactive head 0, skip (%s)\n", reason);
362 return;
363 }
364
365 if (head.width == qdev->monitors_config->heads[i].width &&
366 head.height == qdev->monitors_config->heads[i].height &&
367 head.x == qdev->monitors_config->heads[i].x &&
368 head.y == qdev->monitors_config->heads[i].y &&
369 oldcount == qdev->monitors_config->count)
370 return;
371
372 DRM_DEBUG_KMS("head %d, %dx%d, at +%d+%d, %s (%s)\n",
373 i, head.width, head.height, head.x, head.y,
374 crtc->state->active ? "on" : "off", reason);
375 if (oldcount != qdev->monitors_config->count)
376 DRM_DEBUG_KMS("active heads %d -> %d (%d total)\n",
377 oldcount, qdev->monitors_config->count,
378 qxl_num_crtc);
379
380 qdev->monitors_config->heads[i] = head;
381 qdev->monitors_config->max_allowed = qxl_num_crtc;
382 qxl_send_monitors_config(qdev);
383}
384
385static void qxl_crtc_atomic_flush(struct drm_crtc *crtc,
386 struct drm_atomic_state *state)
387{
388 struct drm_device *dev = crtc->dev;
389 struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
390 struct drm_pending_vblank_event *event;
391
392 qxl_crtc_update_monitors_config(crtc, reason: "flush");
393
394 spin_lock_irq(lock: &dev->event_lock);
395
396 event = crtc_state->event;
397 crtc_state->event = NULL;
398
399 if (event) {
400 if (drm_crtc_vblank_get(crtc) == 0)
401 drm_crtc_arm_vblank_event(crtc, e: event);
402 else
403 drm_crtc_send_vblank_event(crtc, e: event);
404 }
405
406 spin_unlock_irq(lock: &dev->event_lock);
407}
408
409static void qxl_crtc_destroy(struct drm_crtc *crtc)
410{
411 struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
412
413 qxl_bo_unref(bo: &qxl_crtc->cursor_bo);
414 drm_crtc_cleanup(crtc);
415 kfree(objp: qxl_crtc);
416}
417
418static const struct drm_crtc_funcs qxl_crtc_funcs = {
419 .set_config = drm_atomic_helper_set_config,
420 .destroy = qxl_crtc_destroy,
421 .page_flip = drm_atomic_helper_page_flip,
422 .reset = drm_atomic_helper_crtc_reset,
423 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
424 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
425 DRM_CRTC_VBLANK_TIMER_FUNCS,
426};
427
428static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
429 struct drm_file *file_priv,
430 unsigned int flags, unsigned int color,
431 struct drm_clip_rect *clips,
432 unsigned int num_clips)
433{
434 /* TODO: vmwgfx where this was cribbed from had locking. Why? */
435 struct qxl_device *qdev = to_qxl(fb->dev);
436 struct drm_clip_rect norect;
437 struct qxl_bo *qobj;
438 struct drm_modeset_acquire_ctx ctx;
439 bool is_primary;
440 int inc = 1, ret;
441
442 DRM_MODESET_LOCK_ALL_BEGIN(fb->dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret);
443
444 qobj = gem_to_qxl_bo(fb->obj[0]);
445 /* if we aren't primary surface ignore this */
446 is_primary = qobj->shadow ? qobj->shadow->is_primary : qobj->is_primary;
447 if (!is_primary)
448 goto out_lock_end;
449
450 if (!num_clips) {
451 num_clips = 1;
452 clips = &norect;
453 norect.x1 = norect.y1 = 0;
454 norect.x2 = fb->width;
455 norect.y2 = fb->height;
456 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
457 num_clips /= 2;
458 inc = 2; /* skip source rects */
459 }
460
461 qxl_draw_dirty_fb(qdev, fb, bo: qobj, flags, color,
462 clips, num_clips, inc, dumb_shadow_offset: 0);
463
464out_lock_end:
465 DRM_MODESET_LOCK_ALL_END(fb->dev, ctx, ret);
466
467 return 0;
468}
469
470static const struct drm_framebuffer_funcs qxl_fb_funcs = {
471 .destroy = drm_gem_fb_destroy,
472 .dirty = qxl_framebuffer_surface_dirty,
473 .create_handle = drm_gem_fb_create_handle,
474};
475
476static void qxl_crtc_atomic_enable(struct drm_crtc *crtc,
477 struct drm_atomic_state *state)
478{
479 qxl_crtc_update_monitors_config(crtc, reason: "enable");
480
481 drm_crtc_vblank_on(crtc);
482}
483
484static void qxl_crtc_atomic_disable(struct drm_crtc *crtc,
485 struct drm_atomic_state *state)
486{
487 drm_crtc_vblank_off(crtc);
488
489 qxl_crtc_update_monitors_config(crtc, reason: "disable");
490}
491
492static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
493 .atomic_flush = qxl_crtc_atomic_flush,
494 .atomic_enable = qxl_crtc_atomic_enable,
495 .atomic_disable = qxl_crtc_atomic_disable,
496};
497
498static int qxl_primary_atomic_check(struct drm_plane *plane,
499 struct drm_atomic_state *state)
500{
501 struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
502 plane);
503 struct qxl_device *qdev = to_qxl(plane->dev);
504 struct qxl_bo *bo;
505
506 if (!new_plane_state->crtc || !new_plane_state->fb)
507 return 0;
508
509 bo = gem_to_qxl_bo(new_plane_state->fb->obj[0]);
510
511 return qxl_check_framebuffer(qdev, bo);
512}
513
514static int qxl_primary_apply_cursor(struct qxl_device *qdev,
515 struct drm_plane_state *plane_state)
516{
517 struct qxl_crtc *qcrtc = to_qxl_crtc(plane_state->crtc);
518 struct qxl_cursor_cmd *cmd;
519 struct qxl_release *release;
520 int ret = 0;
521
522 if (!qcrtc->cursor_bo)
523 return 0;
524
525 ret = qxl_alloc_release_reserved(qdev, size: sizeof(*cmd),
526 type: QXL_RELEASE_CURSOR_CMD,
527 release: &release, NULL);
528 if (ret)
529 return ret;
530
531 ret = qxl_release_list_add(release, bo: qcrtc->cursor_bo);
532 if (ret)
533 goto out_free_release;
534
535 ret = qxl_release_reserve_list(release, no_intr: false);
536 if (ret)
537 goto out_free_release;
538
539 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
540 cmd->type = QXL_CURSOR_SET;
541 cmd->u.set.position.x = plane_state->crtc_x + plane_state->hotspot_x;
542 cmd->u.set.position.y = plane_state->crtc_y + plane_state->hotspot_y;
543
544 cmd->u.set.shape = qxl_bo_physical_address(qdev, bo: qcrtc->cursor_bo, offset: 0);
545
546 cmd->u.set.visible = 1;
547 qxl_release_unmap(qdev, release, info: &cmd->release_info);
548
549 qxl_release_fence_buffer_objects(release);
550 qxl_push_cursor_ring_release(qdev, release, type: QXL_CMD_CURSOR, interruptible: false);
551
552 return ret;
553
554out_free_release:
555 qxl_release_free(qdev, release);
556 return ret;
557}
558
559static int qxl_primary_move_cursor(struct qxl_device *qdev,
560 struct drm_plane_state *plane_state)
561{
562 struct qxl_crtc *qcrtc = to_qxl_crtc(plane_state->crtc);
563 struct qxl_cursor_cmd *cmd;
564 struct qxl_release *release;
565 int ret = 0;
566
567 if (!qcrtc->cursor_bo)
568 return 0;
569
570 ret = qxl_alloc_release_reserved(qdev, size: sizeof(*cmd),
571 type: QXL_RELEASE_CURSOR_CMD,
572 release: &release, NULL);
573 if (ret)
574 return ret;
575
576 ret = qxl_release_reserve_list(release, no_intr: true);
577 if (ret) {
578 qxl_release_free(qdev, release);
579 return ret;
580 }
581
582 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
583 cmd->type = QXL_CURSOR_MOVE;
584 cmd->u.position.x = plane_state->crtc_x + plane_state->hotspot_x;
585 cmd->u.position.y = plane_state->crtc_y + plane_state->hotspot_y;
586 qxl_release_unmap(qdev, release, info: &cmd->release_info);
587
588 qxl_release_fence_buffer_objects(release);
589 qxl_push_cursor_ring_release(qdev, release, type: QXL_CMD_CURSOR, interruptible: false);
590 return ret;
591}
592
593static struct qxl_bo *qxl_create_cursor(struct qxl_device *qdev,
594 struct qxl_bo *user_bo,
595 int hot_x, int hot_y)
596{
597 static const u32 size = 64 * 64 * 4;
598 struct qxl_bo *cursor_bo;
599 struct iosys_map cursor_map;
600 struct iosys_map user_map;
601 struct qxl_cursor cursor;
602 int ret;
603
604 if (!user_bo)
605 return NULL;
606
607 ret = qxl_bo_create(qdev, size: sizeof(struct qxl_cursor) + size,
608 kernel: false, pinned: true, QXL_GEM_DOMAIN_VRAM, priority: 1,
609 NULL, bo_ptr: &cursor_bo);
610 if (ret)
611 goto err;
612
613 ret = qxl_bo_pin_and_vmap(bo: cursor_bo, map: &cursor_map);
614 if (ret)
615 goto err_unref;
616
617 ret = qxl_bo_pin_and_vmap(bo: user_bo, map: &user_map);
618 if (ret)
619 goto err_unmap;
620
621 cursor.header.unique = 0;
622 cursor.header.type = SPICE_CURSOR_TYPE_ALPHA;
623 cursor.header.width = 64;
624 cursor.header.height = 64;
625 cursor.header.hot_spot_x = hot_x;
626 cursor.header.hot_spot_y = hot_y;
627 cursor.data_size = size;
628 cursor.chunk.next_chunk = 0;
629 cursor.chunk.prev_chunk = 0;
630 cursor.chunk.data_size = size;
631 if (cursor_map.is_iomem) {
632 memcpy_toio(cursor_map.vaddr_iomem,
633 &cursor, sizeof(cursor));
634 memcpy_toio(cursor_map.vaddr_iomem + sizeof(cursor),
635 user_map.vaddr, size);
636 } else {
637 memcpy(cursor_map.vaddr,
638 &cursor, sizeof(cursor));
639 memcpy(cursor_map.vaddr + sizeof(cursor),
640 user_map.vaddr, size);
641 }
642
643 qxl_bo_vunmap_and_unpin(bo: user_bo);
644 qxl_bo_vunmap_and_unpin(bo: cursor_bo);
645 return cursor_bo;
646
647err_unmap:
648 qxl_bo_vunmap_and_unpin(bo: cursor_bo);
649err_unref:
650 qxl_bo_unpin(bo: cursor_bo);
651 qxl_bo_unref(bo: &cursor_bo);
652err:
653 return NULL;
654}
655
656static void qxl_free_cursor(struct qxl_bo *cursor_bo)
657{
658 if (!cursor_bo)
659 return;
660
661 qxl_bo_unpin(bo: cursor_bo);
662 qxl_bo_unref(bo: &cursor_bo);
663}
664
665static void qxl_primary_atomic_update(struct drm_plane *plane,
666 struct drm_atomic_state *state)
667{
668 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
669 plane);
670 struct qxl_device *qdev = to_qxl(plane->dev);
671 struct qxl_bo *bo = gem_to_qxl_bo(new_state->fb->obj[0]);
672 struct qxl_bo *primary;
673 struct drm_clip_rect norect = {
674 .x1 = 0,
675 .y1 = 0,
676 .x2 = new_state->fb->width,
677 .y2 = new_state->fb->height
678 };
679 uint32_t dumb_shadow_offset = 0;
680
681 primary = bo->shadow ? bo->shadow : bo;
682
683 if (!primary->is_primary) {
684 if (qdev->primary_bo)
685 qxl_io_destroy_primary(qdev);
686 qxl_io_create_primary(qdev, bo: primary);
687 qxl_primary_apply_cursor(qdev, plane_state: plane->state);
688 }
689
690 if (bo->is_dumb)
691 dumb_shadow_offset =
692 qdev->dumb_heads[new_state->crtc->index].x;
693
694 qxl_draw_dirty_fb(qdev, fb: new_state->fb, bo, flags: 0, color: 0, clips: &norect, num_clips: 1, inc: 1,
695 dumb_shadow_offset);
696}
697
698static void qxl_primary_atomic_disable(struct drm_plane *plane,
699 struct drm_atomic_state *state)
700{
701 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
702 plane);
703 struct qxl_device *qdev = to_qxl(plane->dev);
704
705 if (old_state->fb) {
706 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]);
707
708 if (bo->shadow)
709 bo = bo->shadow;
710 if (bo->is_primary)
711 qxl_io_destroy_primary(qdev);
712 }
713}
714
715static void qxl_cursor_atomic_update(struct drm_plane *plane,
716 struct drm_atomic_state *state)
717{
718 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
719 plane);
720 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
721 plane);
722 struct qxl_device *qdev = to_qxl(plane->dev);
723 struct drm_framebuffer *fb = new_state->fb;
724
725 if (fb != old_state->fb) {
726 qxl_primary_apply_cursor(qdev, plane_state: new_state);
727 } else {
728 qxl_primary_move_cursor(qdev, plane_state: new_state);
729 }
730}
731
732static void qxl_cursor_atomic_disable(struct drm_plane *plane,
733 struct drm_atomic_state *state)
734{
735 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
736 plane);
737 struct qxl_device *qdev = to_qxl(plane->dev);
738 struct qxl_crtc *qcrtc;
739 struct qxl_release *release;
740 struct qxl_cursor_cmd *cmd;
741 int ret;
742
743 ret = qxl_alloc_release_reserved(qdev, size: sizeof(*cmd),
744 type: QXL_RELEASE_CURSOR_CMD,
745 release: &release, NULL);
746 if (ret)
747 return;
748
749 ret = qxl_release_reserve_list(release, no_intr: true);
750 if (ret) {
751 qxl_release_free(qdev, release);
752 return;
753 }
754
755 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
756 cmd->type = QXL_CURSOR_HIDE;
757 qxl_release_unmap(qdev, release, info: &cmd->release_info);
758
759 qxl_release_fence_buffer_objects(release);
760 qxl_push_cursor_ring_release(qdev, release, type: QXL_CMD_CURSOR, interruptible: false);
761
762 qcrtc = to_qxl_crtc(old_state->crtc);
763 qxl_free_cursor(cursor_bo: qcrtc->cursor_bo);
764 qcrtc->cursor_bo = NULL;
765}
766
767static void qxl_update_dumb_head(struct qxl_device *qdev,
768 int index, struct qxl_bo *bo)
769{
770 uint32_t width, height;
771
772 if (index >= qdev->monitors_config->max_allowed)
773 return;
774
775 if (bo && bo->is_dumb) {
776 width = bo->surf.width;
777 height = bo->surf.height;
778 } else {
779 width = 0;
780 height = 0;
781 }
782
783 if (qdev->dumb_heads[index].width == width &&
784 qdev->dumb_heads[index].height == height)
785 return;
786
787 DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index,
788 qdev->dumb_heads[index].width,
789 qdev->dumb_heads[index].height,
790 width, height);
791 qdev->dumb_heads[index].width = width;
792 qdev->dumb_heads[index].height = height;
793}
794
795static void qxl_calc_dumb_shadow(struct qxl_device *qdev,
796 struct qxl_surface *surf)
797{
798 struct qxl_head *head;
799 int i;
800
801 memset(surf, 0, sizeof(*surf));
802 for (i = 0; i < qdev->monitors_config->max_allowed; i++) {
803 head = qdev->dumb_heads + i;
804 head->x = surf->width;
805 surf->width += head->width;
806 if (surf->height < head->height)
807 surf->height = head->height;
808 }
809 if (surf->width < 64)
810 surf->width = 64;
811 if (surf->height < 64)
812 surf->height = 64;
813 surf->format = SPICE_SURFACE_FMT_32_xRGB;
814 surf->stride = surf->width * 4;
815
816 if (!qdev->dumb_shadow_bo ||
817 qdev->dumb_shadow_bo->surf.width != surf->width ||
818 qdev->dumb_shadow_bo->surf.height != surf->height)
819 DRM_DEBUG("%dx%d\n", surf->width, surf->height);
820}
821
822static void qxl_prepare_shadow(struct qxl_device *qdev, struct qxl_bo *user_bo,
823 int crtc_index)
824{
825 struct qxl_surface surf;
826
827 qxl_update_dumb_head(qdev, index: crtc_index,
828 bo: user_bo);
829 qxl_calc_dumb_shadow(qdev, surf: &surf);
830 if (!qdev->dumb_shadow_bo ||
831 qdev->dumb_shadow_bo->surf.width != surf.width ||
832 qdev->dumb_shadow_bo->surf.height != surf.height) {
833 if (qdev->dumb_shadow_bo) {
834 qxl_bo_unpin(bo: qdev->dumb_shadow_bo);
835 drm_gem_object_put
836 (obj: &qdev->dumb_shadow_bo->tbo.base);
837 qdev->dumb_shadow_bo = NULL;
838 }
839 qxl_bo_create(qdev, size: surf.height * surf.stride,
840 kernel: true, pinned: true, QXL_GEM_DOMAIN_SURFACE, priority: 0,
841 surf: &surf, bo_ptr: &qdev->dumb_shadow_bo);
842 }
843 if (user_bo->shadow != qdev->dumb_shadow_bo) {
844 if (user_bo->shadow) {
845 qxl_bo_unpin(bo: user_bo->shadow);
846 drm_gem_object_put
847 (obj: &user_bo->shadow->tbo.base);
848 user_bo->shadow = NULL;
849 }
850 drm_gem_object_get(obj: &qdev->dumb_shadow_bo->tbo.base);
851 user_bo->shadow = qdev->dumb_shadow_bo;
852 qxl_bo_pin(bo: user_bo->shadow);
853 }
854}
855
856static int qxl_plane_prepare_fb(struct drm_plane *plane,
857 struct drm_plane_state *new_state)
858{
859 struct qxl_device *qdev = to_qxl(plane->dev);
860 struct drm_gem_object *obj;
861 struct qxl_bo *user_bo;
862 int ret;
863
864 if (!new_state->fb)
865 return 0;
866
867 obj = new_state->fb->obj[0];
868 user_bo = gem_to_qxl_bo(obj);
869
870 if (plane->type == DRM_PLANE_TYPE_PRIMARY &&
871 user_bo->is_dumb) {
872 qxl_prepare_shadow(qdev, user_bo, crtc_index: new_state->crtc->index);
873 }
874
875 if (plane->type == DRM_PLANE_TYPE_CURSOR &&
876 plane->state->fb != new_state->fb) {
877 struct qxl_crtc *qcrtc = to_qxl_crtc(new_state->crtc);
878 struct qxl_bo *old_cursor_bo = qcrtc->cursor_bo;
879
880 qcrtc->cursor_bo = qxl_create_cursor(qdev, user_bo,
881 hot_x: new_state->hotspot_x,
882 hot_y: new_state->hotspot_y);
883 qxl_free_cursor(cursor_bo: old_cursor_bo);
884 }
885
886 ret = qxl_bo_pin(bo: user_bo);
887 if (ret)
888 return ret;
889
890 return drm_gem_plane_helper_prepare_fb(plane, state: new_state);
891}
892
893static void qxl_plane_cleanup_fb(struct drm_plane *plane,
894 struct drm_plane_state *old_state)
895{
896 struct drm_gem_object *obj;
897 struct qxl_bo *user_bo;
898
899 if (!old_state->fb) {
900 /*
901 * we never executed prepare_fb, so there's nothing to
902 * unpin.
903 */
904 return;
905 }
906
907 obj = old_state->fb->obj[0];
908 user_bo = gem_to_qxl_bo(obj);
909 qxl_bo_unpin(bo: user_bo);
910
911 if (old_state->fb != plane->state->fb && user_bo->shadow) {
912 qxl_bo_unpin(bo: user_bo->shadow);
913 drm_gem_object_put(obj: &user_bo->shadow->tbo.base);
914 user_bo->shadow = NULL;
915 }
916}
917
918static const uint32_t qxl_cursor_plane_formats[] = {
919 DRM_FORMAT_ARGB8888,
920};
921
922static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
923 .atomic_update = qxl_cursor_atomic_update,
924 .atomic_disable = qxl_cursor_atomic_disable,
925 .prepare_fb = qxl_plane_prepare_fb,
926 .cleanup_fb = qxl_plane_cleanup_fb,
927};
928
929static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
930 .update_plane = drm_atomic_helper_update_plane,
931 .disable_plane = drm_atomic_helper_disable_plane,
932 .destroy = drm_plane_helper_destroy,
933 .reset = drm_atomic_helper_plane_reset,
934 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
935 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
936};
937
938static const uint32_t qxl_primary_plane_formats[] = {
939 DRM_FORMAT_XRGB8888,
940 DRM_FORMAT_ARGB8888,
941};
942
943static const struct drm_plane_helper_funcs primary_helper_funcs = {
944 .atomic_check = qxl_primary_atomic_check,
945 .atomic_update = qxl_primary_atomic_update,
946 .atomic_disable = qxl_primary_atomic_disable,
947 .prepare_fb = qxl_plane_prepare_fb,
948 .cleanup_fb = qxl_plane_cleanup_fb,
949};
950
951static const struct drm_plane_funcs qxl_primary_plane_funcs = {
952 .update_plane = drm_atomic_helper_update_plane,
953 .disable_plane = drm_atomic_helper_disable_plane,
954 .destroy = drm_plane_helper_destroy,
955 .reset = drm_atomic_helper_plane_reset,
956 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
957 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
958};
959
960static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
961 unsigned int possible_crtcs,
962 enum drm_plane_type type)
963{
964 const struct drm_plane_helper_funcs *helper_funcs = NULL;
965 struct drm_plane *plane;
966 const struct drm_plane_funcs *funcs;
967 const uint32_t *formats;
968 int num_formats;
969 int err;
970
971 if (type == DRM_PLANE_TYPE_PRIMARY) {
972 funcs = &qxl_primary_plane_funcs;
973 formats = qxl_primary_plane_formats;
974 num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
975 helper_funcs = &primary_helper_funcs;
976 } else if (type == DRM_PLANE_TYPE_CURSOR) {
977 funcs = &qxl_cursor_plane_funcs;
978 formats = qxl_cursor_plane_formats;
979 helper_funcs = &qxl_cursor_helper_funcs;
980 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats);
981 } else {
982 return ERR_PTR(error: -EINVAL);
983 }
984
985 plane = kzalloc(sizeof(*plane), GFP_KERNEL);
986 if (!plane)
987 return ERR_PTR(error: -ENOMEM);
988
989 err = drm_universal_plane_init(dev: &qdev->ddev, plane, possible_crtcs,
990 funcs, formats, format_count: num_formats,
991 NULL, type, NULL);
992 if (err)
993 goto free_plane;
994
995 drm_plane_helper_add(plane, funcs: helper_funcs);
996
997 return plane;
998
999free_plane:
1000 kfree(objp: plane);
1001 return ERR_PTR(error: -EINVAL);
1002}
1003
1004static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
1005{
1006 struct qxl_crtc *qxl_crtc;
1007 struct drm_plane *primary, *cursor;
1008 struct qxl_device *qdev = to_qxl(dev);
1009 int r;
1010
1011 qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
1012 if (!qxl_crtc)
1013 return -ENOMEM;
1014
1015 primary = qxl_create_plane(qdev, possible_crtcs: 1 << crtc_id, type: DRM_PLANE_TYPE_PRIMARY);
1016 if (IS_ERR(ptr: primary)) {
1017 r = -ENOMEM;
1018 goto free_mem;
1019 }
1020
1021 cursor = qxl_create_plane(qdev, possible_crtcs: 1 << crtc_id, type: DRM_PLANE_TYPE_CURSOR);
1022 if (IS_ERR(ptr: cursor)) {
1023 r = -ENOMEM;
1024 goto clean_primary;
1025 }
1026
1027 r = drm_crtc_init_with_planes(dev, crtc: &qxl_crtc->base, primary, cursor,
1028 funcs: &qxl_crtc_funcs, NULL);
1029 if (r)
1030 goto clean_cursor;
1031
1032 qxl_crtc->index = crtc_id;
1033 drm_crtc_helper_add(crtc: &qxl_crtc->base, funcs: &qxl_crtc_helper_funcs);
1034 return 0;
1035
1036clean_cursor:
1037 drm_plane_cleanup(plane: cursor);
1038 kfree(objp: cursor);
1039clean_primary:
1040 drm_plane_cleanup(plane: primary);
1041 kfree(objp: primary);
1042free_mem:
1043 kfree(objp: qxl_crtc);
1044 return r;
1045}
1046
1047static int qxl_conn_get_modes(struct drm_connector *connector)
1048{
1049 struct drm_device *dev = connector->dev;
1050 struct qxl_device *qdev = to_qxl(dev);
1051 struct qxl_output *output = drm_connector_to_qxl_output(connector);
1052 unsigned int pwidth = 1024;
1053 unsigned int pheight = 768;
1054 int ret = 0;
1055
1056 if (qdev->client_monitors_config) {
1057 struct qxl_head *head;
1058 head = &qdev->client_monitors_config->heads[output->index];
1059 if (head->width)
1060 pwidth = head->width;
1061 if (head->height)
1062 pheight = head->height;
1063 }
1064
1065 ret += drm_add_modes_noedid(connector, hdisplay: 8192, vdisplay: 8192);
1066 ret += qxl_add_extra_modes(connector);
1067 ret += qxl_add_monitors_config_modes(connector);
1068 drm_set_preferred_mode(connector, hpref: pwidth, vpref: pheight);
1069 return ret;
1070}
1071
1072static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector,
1073 const struct drm_display_mode *mode)
1074{
1075 struct drm_device *ddev = connector->dev;
1076 struct qxl_device *qdev = to_qxl(ddev);
1077
1078 if (qxl_check_mode(qdev, width: mode->hdisplay, height: mode->vdisplay) != 0)
1079 return MODE_BAD;
1080
1081 return MODE_OK;
1082}
1083
1084static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
1085{
1086 struct qxl_output *qxl_output =
1087 drm_connector_to_qxl_output(connector);
1088
1089 DRM_DEBUG("\n");
1090 return &qxl_output->enc;
1091}
1092
1093static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
1094 .get_modes = qxl_conn_get_modes,
1095 .mode_valid = qxl_conn_mode_valid,
1096 .best_encoder = qxl_best_encoder,
1097};
1098
1099static enum drm_connector_status qxl_conn_detect(
1100 struct drm_connector *connector,
1101 bool force)
1102{
1103 struct qxl_output *output =
1104 drm_connector_to_qxl_output(connector);
1105 struct drm_device *ddev = connector->dev;
1106 struct qxl_device *qdev = to_qxl(ddev);
1107 bool connected = false;
1108
1109 /* The first monitor is always connected */
1110 if (!qdev->client_monitors_config) {
1111 if (output->index == 0)
1112 connected = true;
1113 } else
1114 connected = qdev->client_monitors_config->count > output->index &&
1115 qxl_head_enabled(head: &qdev->client_monitors_config->heads[output->index]);
1116
1117 DRM_DEBUG("#%d connected: %d\n", output->index, connected);
1118
1119 return connected ? connector_status_connected
1120 : connector_status_disconnected;
1121}
1122
1123static void qxl_conn_destroy(struct drm_connector *connector)
1124{
1125 struct qxl_output *qxl_output =
1126 drm_connector_to_qxl_output(connector);
1127
1128 drm_connector_unregister(connector);
1129 drm_connector_cleanup(connector);
1130 kfree(objp: qxl_output);
1131}
1132
1133static const struct drm_connector_funcs qxl_connector_funcs = {
1134 .detect = qxl_conn_detect,
1135 .fill_modes = drm_helper_probe_single_connector_modes,
1136 .destroy = qxl_conn_destroy,
1137 .reset = drm_atomic_helper_connector_reset,
1138 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1139 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1140};
1141
1142static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1143{
1144 if (qdev->hotplug_mode_update_property)
1145 return 0;
1146
1147 qdev->hotplug_mode_update_property =
1148 drm_property_create_range(dev: &qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1149 name: "hotplug_mode_update", min: 0, max: 1);
1150
1151 return 0;
1152}
1153
1154static int qdev_output_init(struct drm_device *dev, int num_output)
1155{
1156 struct qxl_device *qdev = to_qxl(dev);
1157 struct qxl_output *qxl_output;
1158 struct drm_connector *connector;
1159 struct drm_encoder *encoder;
1160 int ret;
1161
1162 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1163 if (!qxl_output)
1164 return -ENOMEM;
1165
1166 qxl_output->index = num_output;
1167
1168 connector = &qxl_output->base;
1169 encoder = &qxl_output->enc;
1170 drm_connector_init(dev, connector: &qxl_output->base,
1171 funcs: &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1172
1173 ret = drm_simple_encoder_init(dev, encoder: &qxl_output->enc,
1174 DRM_MODE_ENCODER_VIRTUAL);
1175 if (ret) {
1176 drm_err(dev, "drm_simple_encoder_init() failed, error %d\n",
1177 ret);
1178 goto err_drm_connector_cleanup;
1179 }
1180
1181 /* we get HPD via client monitors config */
1182 connector->polled = DRM_CONNECTOR_POLL_HPD;
1183 encoder->possible_crtcs = 1 << num_output;
1184 drm_connector_attach_encoder(connector: &qxl_output->base,
1185 encoder: &qxl_output->enc);
1186 drm_connector_helper_add(connector, funcs: &qxl_connector_helper_funcs);
1187
1188 drm_object_attach_property(obj: &connector->base,
1189 property: qdev->hotplug_mode_update_property, init_val: 0);
1190 drm_object_attach_property(obj: &connector->base,
1191 property: dev->mode_config.suggested_x_property, init_val: 0);
1192 drm_object_attach_property(obj: &connector->base,
1193 property: dev->mode_config.suggested_y_property, init_val: 0);
1194 return 0;
1195
1196err_drm_connector_cleanup:
1197 drm_connector_cleanup(connector: &qxl_output->base);
1198 kfree(objp: qxl_output);
1199 return ret;
1200}
1201
1202static struct drm_framebuffer *
1203qxl_user_framebuffer_create(struct drm_device *dev,
1204 struct drm_file *file_priv,
1205 const struct drm_format_info *info,
1206 const struct drm_mode_fb_cmd2 *mode_cmd)
1207{
1208 return drm_gem_fb_create_with_funcs(dev, file: file_priv, info, mode_cmd,
1209 funcs: &qxl_fb_funcs);
1210}
1211
1212static const struct drm_mode_config_funcs qxl_mode_funcs = {
1213 .fb_create = qxl_user_framebuffer_create,
1214 .atomic_check = drm_atomic_helper_check,
1215 .atomic_commit = drm_atomic_helper_commit,
1216};
1217
1218int qxl_create_monitors_object(struct qxl_device *qdev)
1219{
1220 int ret;
1221 struct drm_gem_object *gobj;
1222 struct iosys_map map;
1223 int monitors_config_size = sizeof(struct qxl_monitors_config) +
1224 qxl_num_crtc * sizeof(struct qxl_head);
1225
1226 ret = qxl_gem_object_create(qdev, size: monitors_config_size, alignment: 0,
1227 QXL_GEM_DOMAIN_VRAM,
1228 discardable: false, kernel: false, NULL, obj: &gobj);
1229 if (ret) {
1230 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1231 return -ENOMEM;
1232 }
1233 qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1234
1235 ret = qxl_bo_pin_and_vmap(bo: qdev->monitors_config_bo, map: &map);
1236 if (ret)
1237 return ret;
1238
1239 qdev->monitors_config = qdev->monitors_config_bo->kptr;
1240 qdev->ram_header->monitors_config =
1241 qxl_bo_physical_address(qdev, bo: qdev->monitors_config_bo, offset: 0);
1242
1243 memset(qdev->monitors_config, 0, monitors_config_size);
1244 qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]),
1245 GFP_KERNEL);
1246 if (!qdev->dumb_heads) {
1247 qxl_destroy_monitors_object(qdev);
1248 return -ENOMEM;
1249 }
1250 return 0;
1251}
1252
1253int qxl_destroy_monitors_object(struct qxl_device *qdev)
1254{
1255 int ret;
1256
1257 if (!qdev->monitors_config_bo)
1258 return 0;
1259
1260 kfree(objp: qdev->dumb_heads);
1261 qdev->dumb_heads = NULL;
1262
1263 qdev->monitors_config = NULL;
1264 qdev->ram_header->monitors_config = 0;
1265
1266 ret = qxl_bo_vunmap_and_unpin(bo: qdev->monitors_config_bo);
1267 if (ret)
1268 return ret;
1269
1270 qxl_bo_unref(bo: &qdev->monitors_config_bo);
1271 return 0;
1272}
1273
1274int qxl_modeset_init(struct qxl_device *qdev)
1275{
1276 int i;
1277 int ret;
1278
1279 ret = drmm_mode_config_init(dev: &qdev->ddev);
1280 if (ret)
1281 return ret;
1282
1283 ret = qxl_create_monitors_object(qdev);
1284 if (ret)
1285 return ret;
1286
1287 qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
1288
1289 /* modes will be validated against the framebuffer size */
1290 qdev->ddev.mode_config.min_width = 0;
1291 qdev->ddev.mode_config.min_height = 0;
1292 qdev->ddev.mode_config.max_width = 8192;
1293 qdev->ddev.mode_config.max_height = 8192;
1294
1295 drm_mode_create_suggested_offset_properties(dev: &qdev->ddev);
1296 qxl_mode_create_hotplug_mode_update_property(qdev);
1297
1298 for (i = 0 ; i < qxl_num_crtc; ++i) {
1299 qdev_crtc_init(dev: &qdev->ddev, crtc_id: i);
1300 qdev_output_init(dev: &qdev->ddev, num_output: i);
1301 }
1302
1303 qxl_display_read_client_monitors_config(qdev);
1304
1305 ret = drm_vblank_init(dev: &qdev->ddev, num_crtcs: qxl_num_crtc);
1306 if (ret)
1307 return ret;
1308
1309 drm_mode_config_reset(dev: &qdev->ddev);
1310 return 0;
1311}
1312
1313void qxl_modeset_fini(struct qxl_device *qdev)
1314{
1315 if (qdev->dumb_shadow_bo) {
1316 qxl_bo_unpin(bo: qdev->dumb_shadow_bo);
1317 drm_gem_object_put(obj: &qdev->dumb_shadow_bo->tbo.base);
1318 qdev->dumb_shadow_bo = NULL;
1319 }
1320 qxl_destroy_monitors_object(qdev);
1321}
1322

source code of linux/drivers/gpu/drm/qxl/qxl_display.c