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Merge tag 'io_uring-5.11-2021-01-16' of git://git.kernel.dk/linux-block
[linux/fpc-iii.git] / drivers / gpu / drm / qxl / qxl_display.c
blob012bce0cdb65c101345e14121d193500d46f0252
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/dma-buf-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_gem_framebuffer_helper.h>
34 #include <drm/drm_plane_helper.h>
35 #include <drm/drm_probe_helper.h>
36 #include <drm/drm_simple_kms_helper.h>
37
38 #include "qxl_drv.h"
39 #include "qxl_object.h"
40
41 static bool qxl_head_enabled(struct qxl_head *head)
42 {
43 return head->width && head->height;
44 }
45
46 static int qxl_alloc_client_monitors_config(struct qxl_device *qdev,
47 unsigned int count)
48 {
49 if (qdev->client_monitors_config &&
50 count > qdev->client_monitors_config->count) {
51 kfree(qdev->client_monitors_config);
52 qdev->client_monitors_config = NULL;
53 }
54 if (!qdev->client_monitors_config) {
55 qdev->client_monitors_config = kzalloc(
56 struct_size(qdev->client_monitors_config,
57 heads, count), GFP_KERNEL);
58 if (!qdev->client_monitors_config)
59 return -ENOMEM;
60 }
61 qdev->client_monitors_config->count = count;
62 return 0;
63 }
64
65 enum {
66 MONITORS_CONFIG_MODIFIED,
67 MONITORS_CONFIG_UNCHANGED,
68 MONITORS_CONFIG_BAD_CRC,
69 MONITORS_CONFIG_ERROR,
70 };
71
72 static int qxl_display_copy_rom_client_monitors_config(struct qxl_device *qdev)
73 {
74 int i;
75 int num_monitors;
76 uint32_t crc;
77 int status = MONITORS_CONFIG_UNCHANGED;
78
79 num_monitors = qdev->rom->client_monitors_config.count;
80 crc = crc32(0, (const uint8_t *)&qdev->rom->client_monitors_config,
81 sizeof(qdev->rom->client_monitors_config));
82 if (crc != qdev->rom->client_monitors_config_crc)
83 return MONITORS_CONFIG_BAD_CRC;
84 if (!num_monitors) {
85 DRM_DEBUG_KMS("no client monitors configured\n");
86 return status;
87 }
88 if (num_monitors > qxl_num_crtc) {
89 DRM_DEBUG_KMS("client monitors list will be truncated: %d < %d\n",
90 qxl_num_crtc, num_monitors);
91 num_monitors = qxl_num_crtc;
92 } else {
93 num_monitors = qdev->rom->client_monitors_config.count;
94 }
95 if (qdev->client_monitors_config
96 && (num_monitors != qdev->client_monitors_config->count)) {
97 status = MONITORS_CONFIG_MODIFIED;
98 }
99 if (qxl_alloc_client_monitors_config(qdev, num_monitors)) {
100 status = MONITORS_CONFIG_ERROR;
101 return status;
102 }
103 /* we copy max from the client but it isn't used */
104 qdev->client_monitors_config->max_allowed = qxl_num_crtc;
105 for (i = 0 ; i < qdev->client_monitors_config->count ; ++i) {
106 struct qxl_urect *c_rect =
107 &qdev->rom->client_monitors_config.heads[i];
108 struct qxl_head *client_head =
109 &qdev->client_monitors_config->heads[i];
110 if (client_head->x != c_rect->left) {
111 client_head->x = c_rect->left;
112 status = MONITORS_CONFIG_MODIFIED;
113 }
114 if (client_head->y != c_rect->top) {
115 client_head->y = c_rect->top;
116 status = MONITORS_CONFIG_MODIFIED;
117 }
118 if (client_head->width != c_rect->right - c_rect->left) {
119 client_head->width = c_rect->right - c_rect->left;
120 status = MONITORS_CONFIG_MODIFIED;
121 }
122 if (client_head->height != c_rect->bottom - c_rect->top) {
123 client_head->height = c_rect->bottom - c_rect->top;
124 status = MONITORS_CONFIG_MODIFIED;
125 }
126 if (client_head->surface_id != 0) {
127 client_head->surface_id = 0;
128 status = MONITORS_CONFIG_MODIFIED;
129 }
130 if (client_head->id != i) {
131 client_head->id = i;
132 status = MONITORS_CONFIG_MODIFIED;
133 }
134 if (client_head->flags != 0) {
135 client_head->flags = 0;
136 status = MONITORS_CONFIG_MODIFIED;
137 }
138 DRM_DEBUG_KMS("read %dx%d+%d+%d\n", client_head->width, client_head->height,
139 client_head->x, client_head->y);
140 }
141
142 return status;
143 }
144
145 static void qxl_update_offset_props(struct qxl_device *qdev)
146 {
147 struct drm_device *dev = &qdev->ddev;
148 struct drm_connector *connector;
149 struct qxl_output *output;
150 struct qxl_head *head;
151
152 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
153 output = drm_connector_to_qxl_output(connector);
154
155 head = &qdev->client_monitors_config->heads[output->index];
156
157 drm_object_property_set_value(&connector->base,
158 dev->mode_config.suggested_x_property, head->x);
159 drm_object_property_set_value(&connector->base,
160 dev->mode_config.suggested_y_property, head->y);
161 }
162 }
163
164 void qxl_display_read_client_monitors_config(struct qxl_device *qdev)
165 {
166 struct drm_device *dev = &qdev->ddev;
167 struct drm_modeset_acquire_ctx ctx;
168 int status, retries, ret;
169
170 for (retries = 0; retries < 10; retries++) {
171 status = qxl_display_copy_rom_client_monitors_config(qdev);
172 if (status != MONITORS_CONFIG_BAD_CRC)
173 break;
174 udelay(5);
175 }
176 if (status == MONITORS_CONFIG_ERROR) {
177 DRM_DEBUG_KMS("ignoring client monitors config: error");
178 return;
179 }
180 if (status == MONITORS_CONFIG_BAD_CRC) {
181 DRM_DEBUG_KMS("ignoring client monitors config: bad crc");
182 return;
183 }
184 if (status == MONITORS_CONFIG_UNCHANGED) {
185 DRM_DEBUG_KMS("ignoring client monitors config: unchanged");
186 return;
187 }
188
189 DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret);
190 qxl_update_offset_props(qdev);
191 DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
192 if (!drm_helper_hpd_irq_event(dev)) {
193 /* notify that the monitor configuration changed, to
194 adjust at the arbitrary resolution */
195 drm_kms_helper_hotplug_event(dev);
196 }
197 }
198
199 static int qxl_check_mode(struct qxl_device *qdev,
200 unsigned int width,
201 unsigned int height)
202 {
203 unsigned int stride;
204 unsigned int size;
205
206 if (check_mul_overflow(width, 4u, &stride))
207 return -EINVAL;
208 if (check_mul_overflow(stride, height, &size))
209 return -EINVAL;
210 if (size > qdev->vram_size)
211 return -ENOMEM;
212 return 0;
213 }
214
215 static int qxl_check_framebuffer(struct qxl_device *qdev,
216 struct qxl_bo *bo)
217 {
218 return qxl_check_mode(qdev, bo->surf.width, bo->surf.height);
219 }
220
221 static int qxl_add_mode(struct drm_connector *connector,
222 unsigned int width,
223 unsigned int height,
224 bool preferred)
225 {
226 struct drm_device *dev = connector->dev;
227 struct qxl_device *qdev = to_qxl(dev);
228 struct drm_display_mode *mode = NULL;
229 int rc;
230
231 rc = qxl_check_mode(qdev, width, height);
232 if (rc != 0)
233 return 0;
234
235 mode = drm_cvt_mode(dev, width, height, 60, false, false, false);
236 if (preferred)
237 mode->type |= DRM_MODE_TYPE_PREFERRED;
238 mode->hdisplay = width;
239 mode->vdisplay = height;
240 drm_mode_set_name(mode);
241 drm_mode_probed_add(connector, mode);
242 return 1;
243 }
244
245 static int qxl_add_monitors_config_modes(struct drm_connector *connector)
246 {
247 struct drm_device *dev = connector->dev;
248 struct qxl_device *qdev = to_qxl(dev);
249 struct qxl_output *output = drm_connector_to_qxl_output(connector);
250 int h = output->index;
251 struct qxl_head *head;
252
253 if (!qdev->monitors_config)
254 return 0;
255 if (h >= qxl_num_crtc)
256 return 0;
257 if (!qdev->client_monitors_config)
258 return 0;
259 if (h >= qdev->client_monitors_config->count)
260 return 0;
261
262 head = &qdev->client_monitors_config->heads[h];
263 DRM_DEBUG_KMS("head %d is %dx%d\n", h, head->width, head->height);
264
265 return qxl_add_mode(connector, head->width, head->height, true);
266 }
267
268 static struct mode_size {
269 int w;
270 int h;
271 } extra_modes[] = {
272 { 720, 480},
273 {1152, 768},
274 {1280, 854},
275 };
276
277 static int qxl_add_extra_modes(struct drm_connector *connector)
278 {
279 int i, ret = 0;
280
281 for (i = 0; i < ARRAY_SIZE(extra_modes); i++)
282 ret += qxl_add_mode(connector,
283 extra_modes[i].w,
284 extra_modes[i].h,
285 false);
286 return ret;
287 }
288
289 static void qxl_send_monitors_config(struct qxl_device *qdev)
290 {
291 int i;
292
293 BUG_ON(!qdev->ram_header->monitors_config);
294
295 if (qdev->monitors_config->count == 0)
296 return;
297
298 for (i = 0 ; i < qdev->monitors_config->count ; ++i) {
299 struct qxl_head *head = &qdev->monitors_config->heads[i];
300
301 if (head->y > 8192 || head->x > 8192 ||
302 head->width > 8192 || head->height > 8192) {
303 DRM_ERROR("head %d wrong: %dx%d+%d+%d\n",
304 i, head->width, head->height,
305 head->x, head->y);
306 return;
307 }
308 }
309 qxl_io_monitors_config(qdev);
310 }
311
312 static void qxl_crtc_update_monitors_config(struct drm_crtc *crtc,
313 const char *reason)
314 {
315 struct drm_device *dev = crtc->dev;
316 struct qxl_device *qdev = to_qxl(dev);
317 struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
318 struct qxl_head head;
319 int oldcount, i = qcrtc->index;
320
321 if (!qdev->primary_bo) {
322 DRM_DEBUG_KMS("no primary surface, skip (%s)\n", reason);
323 return;
324 }
325
326 if (!qdev->monitors_config || qxl_num_crtc <= i)
327 return;
328
329 head.id = i;
330 head.flags = 0;
331 oldcount = qdev->monitors_config->count;
332 if (crtc->state->active) {
333 struct drm_display_mode *mode = &crtc->mode;
334
335 head.width = mode->hdisplay;
336 head.height = mode->vdisplay;
337 head.x = crtc->x;
338 head.y = crtc->y;
339 if (qdev->monitors_config->count < i + 1)
340 qdev->monitors_config->count = i + 1;
341 if (qdev->primary_bo == qdev->dumb_shadow_bo)
342 head.x += qdev->dumb_heads[i].x;
343 } else if (i > 0) {
344 head.width = 0;
345 head.height = 0;
346 head.x = 0;
347 head.y = 0;
348 if (qdev->monitors_config->count == i + 1)
349 qdev->monitors_config->count = i;
350 } else {
351 DRM_DEBUG_KMS("inactive head 0, skip (%s)\n", reason);
352 return;
353 }
354
355 if (head.width == qdev->monitors_config->heads[i].width &&
356 head.height == qdev->monitors_config->heads[i].height &&
357 head.x == qdev->monitors_config->heads[i].x &&
358 head.y == qdev->monitors_config->heads[i].y &&
359 oldcount == qdev->monitors_config->count)
360 return;
361
362 DRM_DEBUG_KMS("head %d, %dx%d, at +%d+%d, %s (%s)\n",
363 i, head.width, head.height, head.x, head.y,
364 crtc->state->active ? "on" : "off", reason);
365 if (oldcount != qdev->monitors_config->count)
366 DRM_DEBUG_KMS("active heads %d -> %d (%d total)\n",
367 oldcount, qdev->monitors_config->count,
368 qxl_num_crtc);
369
370 qdev->monitors_config->heads[i] = head;
371 qdev->monitors_config->max_allowed = qxl_num_crtc;
372 qxl_send_monitors_config(qdev);
373 }
374
375 static void qxl_crtc_atomic_flush(struct drm_crtc *crtc,
376 struct drm_atomic_state *state)
377 {
378 qxl_crtc_update_monitors_config(crtc, "flush");
379 }
380
381 static void qxl_crtc_destroy(struct drm_crtc *crtc)
382 {
383 struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
384
385 qxl_bo_unref(&qxl_crtc->cursor_bo);
386 drm_crtc_cleanup(crtc);
387 kfree(qxl_crtc);
388 }
389
390 static const struct drm_crtc_funcs qxl_crtc_funcs = {
391 .set_config = drm_atomic_helper_set_config,
392 .destroy = qxl_crtc_destroy,
393 .page_flip = drm_atomic_helper_page_flip,
394 .reset = drm_atomic_helper_crtc_reset,
395 .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
396 .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
397 };
398
399 static int qxl_framebuffer_surface_dirty(struct drm_framebuffer *fb,
400 struct drm_file *file_priv,
401 unsigned int flags, unsigned int color,
402 struct drm_clip_rect *clips,
403 unsigned int num_clips)
404 {
405 /* TODO: vmwgfx where this was cribbed from had locking. Why? */
406 struct qxl_device *qdev = to_qxl(fb->dev);
407 struct drm_clip_rect norect;
408 struct qxl_bo *qobj;
409 struct drm_modeset_acquire_ctx ctx;
410 bool is_primary;
411 int inc = 1, ret;
412
413 DRM_MODESET_LOCK_ALL_BEGIN(fb->dev, ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE, ret);
414
415 qobj = gem_to_qxl_bo(fb->obj[0]);
416 /* if we aren't primary surface ignore this */
417 is_primary = qobj->shadow ? qobj->shadow->is_primary : qobj->is_primary;
418 if (!is_primary)
419 goto out_lock_end;
420
421 if (!num_clips) {
422 num_clips = 1;
423 clips = &norect;
424 norect.x1 = norect.y1 = 0;
425 norect.x2 = fb->width;
426 norect.y2 = fb->height;
427 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
428 num_clips /= 2;
429 inc = 2; /* skip source rects */
430 }
431
432 qxl_draw_dirty_fb(qdev, fb, qobj, flags, color,
433 clips, num_clips, inc, 0);
434
435 out_lock_end:
436 DRM_MODESET_LOCK_ALL_END(fb->dev, ctx, ret);
437
438 return 0;
439 }
440
441 static const struct drm_framebuffer_funcs qxl_fb_funcs = {
442 .destroy = drm_gem_fb_destroy,
443 .dirty = qxl_framebuffer_surface_dirty,
444 .create_handle = drm_gem_fb_create_handle,
445 };
446
447 static void qxl_crtc_atomic_enable(struct drm_crtc *crtc,
448 struct drm_atomic_state *state)
449 {
450 qxl_crtc_update_monitors_config(crtc, "enable");
451 }
452
453 static void qxl_crtc_atomic_disable(struct drm_crtc *crtc,
454 struct drm_atomic_state *state)
455 {
456 qxl_crtc_update_monitors_config(crtc, "disable");
457 }
458
459 static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
460 .atomic_flush = qxl_crtc_atomic_flush,
461 .atomic_enable = qxl_crtc_atomic_enable,
462 .atomic_disable = qxl_crtc_atomic_disable,
463 };
464
465 static int qxl_primary_atomic_check(struct drm_plane *plane,
466 struct drm_plane_state *state)
467 {
468 struct qxl_device *qdev = to_qxl(plane->dev);
469 struct qxl_bo *bo;
470
471 if (!state->crtc || !state->fb)
472 return 0;
473
474 bo = gem_to_qxl_bo(state->fb->obj[0]);
475
476 return qxl_check_framebuffer(qdev, bo);
477 }
478
479 static int qxl_primary_apply_cursor(struct drm_plane *plane)
480 {
481 struct drm_device *dev = plane->dev;
482 struct qxl_device *qdev = to_qxl(dev);
483 struct drm_framebuffer *fb = plane->state->fb;
484 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
485 struct qxl_cursor_cmd *cmd;
486 struct qxl_release *release;
487 int ret = 0;
488
489 if (!qcrtc->cursor_bo)
490 return 0;
491
492 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
493 QXL_RELEASE_CURSOR_CMD,
494 &release, NULL);
495 if (ret)
496 return ret;
497
498 ret = qxl_release_list_add(release, qcrtc->cursor_bo);
499 if (ret)
500 goto out_free_release;
501
502 ret = qxl_release_reserve_list(release, false);
503 if (ret)
504 goto out_free_release;
505
506 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
507 cmd->type = QXL_CURSOR_SET;
508 cmd->u.set.position.x = plane->state->crtc_x + fb->hot_x;
509 cmd->u.set.position.y = plane->state->crtc_y + fb->hot_y;
510
511 cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0);
512
513 cmd->u.set.visible = 1;
514 qxl_release_unmap(qdev, release, &cmd->release_info);
515
516 qxl_release_fence_buffer_objects(release);
517 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
518
519 return ret;
520
521 out_free_release:
522 qxl_release_free(qdev, release);
523 return ret;
524 }
525
526 static void qxl_primary_atomic_update(struct drm_plane *plane,
527 struct drm_plane_state *old_state)
528 {
529 struct qxl_device *qdev = to_qxl(plane->dev);
530 struct qxl_bo *bo = gem_to_qxl_bo(plane->state->fb->obj[0]);
531 struct qxl_bo *primary;
532 struct drm_clip_rect norect = {
533 .x1 = 0,
534 .y1 = 0,
535 .x2 = plane->state->fb->width,
536 .y2 = plane->state->fb->height
537 };
538 uint32_t dumb_shadow_offset = 0;
539
540 primary = bo->shadow ? bo->shadow : bo;
541
542 if (!primary->is_primary) {
543 if (qdev->primary_bo)
544 qxl_io_destroy_primary(qdev);
545 qxl_io_create_primary(qdev, primary);
546 qxl_primary_apply_cursor(plane);
547 }
548
549 if (bo->is_dumb)
550 dumb_shadow_offset =
551 qdev->dumb_heads[plane->state->crtc->index].x;
552
553 qxl_draw_dirty_fb(qdev, plane->state->fb, bo, 0, 0, &norect, 1, 1,
554 dumb_shadow_offset);
555 }
556
557 static void qxl_primary_atomic_disable(struct drm_plane *plane,
558 struct drm_plane_state *old_state)
559 {
560 struct qxl_device *qdev = to_qxl(plane->dev);
561
562 if (old_state->fb) {
563 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]);
564
565 if (bo->is_primary) {
566 qxl_io_destroy_primary(qdev);
567 bo->is_primary = false;
568 }
569 }
570 }
571
572 static void qxl_cursor_atomic_update(struct drm_plane *plane,
573 struct drm_plane_state *old_state)
574 {
575 struct drm_device *dev = plane->dev;
576 struct qxl_device *qdev = to_qxl(dev);
577 struct drm_framebuffer *fb = plane->state->fb;
578 struct qxl_crtc *qcrtc = to_qxl_crtc(plane->state->crtc);
579 struct qxl_release *release;
580 struct qxl_cursor_cmd *cmd;
581 struct qxl_cursor *cursor;
582 struct drm_gem_object *obj;
583 struct qxl_bo *cursor_bo = NULL, *user_bo = NULL, *old_cursor_bo = NULL;
584 int ret;
585 struct dma_buf_map user_map;
586 struct dma_buf_map cursor_map;
587 void *user_ptr;
588 int size = 64*64*4;
589
590 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
591 QXL_RELEASE_CURSOR_CMD,
592 &release, NULL);
593 if (ret)
594 return;
595
596 if (fb != old_state->fb) {
597 obj = fb->obj[0];
598 user_bo = gem_to_qxl_bo(obj);
599
600 /* pinning is done in the prepare/cleanup framevbuffer */
601 ret = qxl_bo_kmap(user_bo, &user_map);
602 if (ret)
603 goto out_free_release;
604 user_ptr = user_map.vaddr; /* TODO: Use mapping abstraction properly */
605
606 ret = qxl_alloc_bo_reserved(qdev, release,
607 sizeof(struct qxl_cursor) + size,
608 &cursor_bo);
609 if (ret)
610 goto out_kunmap;
611
612 ret = qxl_bo_pin(cursor_bo);
613 if (ret)
614 goto out_free_bo;
615
616 ret = qxl_release_reserve_list(release, true);
617 if (ret)
618 goto out_unpin;
619
620 ret = qxl_bo_kmap(cursor_bo, &cursor_map);
621 if (ret)
622 goto out_backoff;
623 if (cursor_map.is_iomem) /* TODO: Use mapping abstraction properly */
624 cursor = (struct qxl_cursor __force *)cursor_map.vaddr_iomem;
625 else
626 cursor = (struct qxl_cursor *)cursor_map.vaddr;
627
628 cursor->header.unique = 0;
629 cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
630 cursor->header.width = 64;
631 cursor->header.height = 64;
632 cursor->header.hot_spot_x = fb->hot_x;
633 cursor->header.hot_spot_y = fb->hot_y;
634 cursor->data_size = size;
635 cursor->chunk.next_chunk = 0;
636 cursor->chunk.prev_chunk = 0;
637 cursor->chunk.data_size = size;
638 memcpy(cursor->chunk.data, user_ptr, size);
639 qxl_bo_kunmap(cursor_bo);
640 qxl_bo_kunmap(user_bo);
641
642 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
643 cmd->u.set.visible = 1;
644 cmd->u.set.shape = qxl_bo_physical_address(qdev,
645 cursor_bo, 0);
646 cmd->type = QXL_CURSOR_SET;
647
648 old_cursor_bo = qcrtc->cursor_bo;
649 qcrtc->cursor_bo = cursor_bo;
650 cursor_bo = NULL;
651 } else {
652
653 ret = qxl_release_reserve_list(release, true);
654 if (ret)
655 goto out_free_release;
656
657 cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
658 cmd->type = QXL_CURSOR_MOVE;
659 }
660
661 cmd->u.position.x = plane->state->crtc_x + fb->hot_x;
662 cmd->u.position.y = plane->state->crtc_y + fb->hot_y;
663
664 qxl_release_unmap(qdev, release, &cmd->release_info);
665 qxl_release_fence_buffer_objects(release);
666 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
667
668 if (old_cursor_bo != NULL)
669 qxl_bo_unpin(old_cursor_bo);
670 qxl_bo_unref(&old_cursor_bo);
671 qxl_bo_unref(&cursor_bo);
672
673 return;
674
675 out_backoff:
676 qxl_release_backoff_reserve_list(release);
677 out_unpin:
678 qxl_bo_unpin(cursor_bo);
679 out_free_bo:
680 qxl_bo_unref(&cursor_bo);
681 out_kunmap:
682 qxl_bo_kunmap(user_bo);
683 out_free_release:
684 qxl_release_free(qdev, release);
685 return;
686
687 }
688
689 static void qxl_cursor_atomic_disable(struct drm_plane *plane,
690 struct drm_plane_state *old_state)
691 {
692 struct qxl_device *qdev = to_qxl(plane->dev);
693 struct qxl_release *release;
694 struct qxl_cursor_cmd *cmd;
695 int ret;
696
697 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
698 QXL_RELEASE_CURSOR_CMD,
699 &release, NULL);
700 if (ret)
701 return;
702
703 ret = qxl_release_reserve_list(release, true);
704 if (ret) {
705 qxl_release_free(qdev, release);
706 return;
707 }
708
709 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
710 cmd->type = QXL_CURSOR_HIDE;
711 qxl_release_unmap(qdev, release, &cmd->release_info);
712
713 qxl_release_fence_buffer_objects(release);
714 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
715 }
716
717 static void qxl_update_dumb_head(struct qxl_device *qdev,
718 int index, struct qxl_bo *bo)
719 {
720 uint32_t width, height;
721
722 if (index >= qdev->monitors_config->max_allowed)
723 return;
724
725 if (bo && bo->is_dumb) {
726 width = bo->surf.width;
727 height = bo->surf.height;
728 } else {
729 width = 0;
730 height = 0;
731 }
732
733 if (qdev->dumb_heads[index].width == width &&
734 qdev->dumb_heads[index].height == height)
735 return;
736
737 DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index,
738 qdev->dumb_heads[index].width,
739 qdev->dumb_heads[index].height,
740 width, height);
741 qdev->dumb_heads[index].width = width;
742 qdev->dumb_heads[index].height = height;
743 }
744
745 static void qxl_calc_dumb_shadow(struct qxl_device *qdev,
746 struct qxl_surface *surf)
747 {
748 struct qxl_head *head;
749 int i;
750
751 memset(surf, 0, sizeof(*surf));
752 for (i = 0; i < qdev->monitors_config->max_allowed; i++) {
753 head = qdev->dumb_heads + i;
754 head->x = surf->width;
755 surf->width += head->width;
756 if (surf->height < head->height)
757 surf->height = head->height;
758 }
759 if (surf->width < 64)
760 surf->width = 64;
761 if (surf->height < 64)
762 surf->height = 64;
763 surf->format = SPICE_SURFACE_FMT_32_xRGB;
764 surf->stride = surf->width * 4;
765
766 if (!qdev->dumb_shadow_bo ||
767 qdev->dumb_shadow_bo->surf.width != surf->width ||
768 qdev->dumb_shadow_bo->surf.height != surf->height)
769 DRM_DEBUG("%dx%d\n", surf->width, surf->height);
770 }
771
772 static int qxl_plane_prepare_fb(struct drm_plane *plane,
773 struct drm_plane_state *new_state)
774 {
775 struct qxl_device *qdev = to_qxl(plane->dev);
776 struct drm_gem_object *obj;
777 struct qxl_bo *user_bo;
778 struct qxl_surface surf;
779
780 if (!new_state->fb)
781 return 0;
782
783 obj = new_state->fb->obj[0];
784 user_bo = gem_to_qxl_bo(obj);
785
786 if (plane->type == DRM_PLANE_TYPE_PRIMARY &&
787 user_bo->is_dumb) {
788 qxl_update_dumb_head(qdev, new_state->crtc->index,
789 user_bo);
790 qxl_calc_dumb_shadow(qdev, &surf);
791 if (!qdev->dumb_shadow_bo ||
792 qdev->dumb_shadow_bo->surf.width != surf.width ||
793 qdev->dumb_shadow_bo->surf.height != surf.height) {
794 if (qdev->dumb_shadow_bo) {
795 drm_gem_object_put
796 (&qdev->dumb_shadow_bo->tbo.base);
797 qdev->dumb_shadow_bo = NULL;
798 }
799 qxl_bo_create(qdev, surf.height * surf.stride,
800 true, true, QXL_GEM_DOMAIN_SURFACE, &surf,
801 &qdev->dumb_shadow_bo);
802 }
803 if (user_bo->shadow != qdev->dumb_shadow_bo) {
804 if (user_bo->shadow) {
805 drm_gem_object_put
806 (&user_bo->shadow->tbo.base);
807 user_bo->shadow = NULL;
808 }
809 drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base);
810 user_bo->shadow = qdev->dumb_shadow_bo;
811 }
812 }
813
814 return qxl_bo_pin(user_bo);
815 }
816
817 static void qxl_plane_cleanup_fb(struct drm_plane *plane,
818 struct drm_plane_state *old_state)
819 {
820 struct drm_gem_object *obj;
821 struct qxl_bo *user_bo;
822
823 if (!old_state->fb) {
824 /*
825 * we never executed prepare_fb, so there's nothing to
826 * unpin.
827 */
828 return;
829 }
830
831 obj = old_state->fb->obj[0];
832 user_bo = gem_to_qxl_bo(obj);
833 qxl_bo_unpin(user_bo);
834
835 if (old_state->fb != plane->state->fb && user_bo->shadow) {
836 drm_gem_object_put(&user_bo->shadow->tbo.base);
837 user_bo->shadow = NULL;
838 }
839 }
840
841 static const uint32_t qxl_cursor_plane_formats[] = {
842 DRM_FORMAT_ARGB8888,
843 };
844
845 static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
846 .atomic_update = qxl_cursor_atomic_update,
847 .atomic_disable = qxl_cursor_atomic_disable,
848 .prepare_fb = qxl_plane_prepare_fb,
849 .cleanup_fb = qxl_plane_cleanup_fb,
850 };
851
852 static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
853 .update_plane = drm_atomic_helper_update_plane,
854 .disable_plane = drm_atomic_helper_disable_plane,
855 .destroy = drm_primary_helper_destroy,
856 .reset = drm_atomic_helper_plane_reset,
857 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
858 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
859 };
860
861 static const uint32_t qxl_primary_plane_formats[] = {
862 DRM_FORMAT_XRGB8888,
863 DRM_FORMAT_ARGB8888,
864 };
865
866 static const struct drm_plane_helper_funcs primary_helper_funcs = {
867 .atomic_check = qxl_primary_atomic_check,
868 .atomic_update = qxl_primary_atomic_update,
869 .atomic_disable = qxl_primary_atomic_disable,
870 .prepare_fb = qxl_plane_prepare_fb,
871 .cleanup_fb = qxl_plane_cleanup_fb,
872 };
873
874 static const struct drm_plane_funcs qxl_primary_plane_funcs = {
875 .update_plane = drm_atomic_helper_update_plane,
876 .disable_plane = drm_atomic_helper_disable_plane,
877 .destroy = drm_primary_helper_destroy,
878 .reset = drm_atomic_helper_plane_reset,
879 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
880 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
881 };
882
883 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
884 unsigned int possible_crtcs,
885 enum drm_plane_type type)
886 {
887 const struct drm_plane_helper_funcs *helper_funcs = NULL;
888 struct drm_plane *plane;
889 const struct drm_plane_funcs *funcs;
890 const uint32_t *formats;
891 int num_formats;
892 int err;
893
894 if (type == DRM_PLANE_TYPE_PRIMARY) {
895 funcs = &qxl_primary_plane_funcs;
896 formats = qxl_primary_plane_formats;
897 num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
898 helper_funcs = &primary_helper_funcs;
899 } else if (type == DRM_PLANE_TYPE_CURSOR) {
900 funcs = &qxl_cursor_plane_funcs;
901 formats = qxl_cursor_plane_formats;
902 helper_funcs = &qxl_cursor_helper_funcs;
903 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats);
904 } else {
905 return ERR_PTR(-EINVAL);
906 }
907
908 plane = kzalloc(sizeof(*plane), GFP_KERNEL);
909 if (!plane)
910 return ERR_PTR(-ENOMEM);
911
912 err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs,
913 funcs, formats, num_formats,
914 NULL, type, NULL);
915 if (err)
916 goto free_plane;
917
918 drm_plane_helper_add(plane, helper_funcs);
919
920 return plane;
921
922 free_plane:
923 kfree(plane);
924 return ERR_PTR(-EINVAL);
925 }
926
927 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
928 {
929 struct qxl_crtc *qxl_crtc;
930 struct drm_plane *primary, *cursor;
931 struct qxl_device *qdev = to_qxl(dev);
932 int r;
933
934 qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
935 if (!qxl_crtc)
936 return -ENOMEM;
937
938 primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY);
939 if (IS_ERR(primary)) {
940 r = -ENOMEM;
941 goto free_mem;
942 }
943
944 cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR);
945 if (IS_ERR(cursor)) {
946 r = -ENOMEM;
947 goto clean_primary;
948 }
949
950 r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor,
951 &qxl_crtc_funcs, NULL);
952 if (r)
953 goto clean_cursor;
954
955 qxl_crtc->index = crtc_id;
956 drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
957 return 0;
958
959 clean_cursor:
960 drm_plane_cleanup(cursor);
961 kfree(cursor);
962 clean_primary:
963 drm_plane_cleanup(primary);
964 kfree(primary);
965 free_mem:
966 kfree(qxl_crtc);
967 return r;
968 }
969
970 static int qxl_conn_get_modes(struct drm_connector *connector)
971 {
972 struct drm_device *dev = connector->dev;
973 struct qxl_device *qdev = to_qxl(dev);
974 struct qxl_output *output = drm_connector_to_qxl_output(connector);
975 unsigned int pwidth = 1024;
976 unsigned int pheight = 768;
977 int ret = 0;
978
979 if (qdev->client_monitors_config) {
980 struct qxl_head *head;
981 head = &qdev->client_monitors_config->heads[output->index];
982 if (head->width)
983 pwidth = head->width;
984 if (head->height)
985 pheight = head->height;
986 }
987
988 ret += drm_add_modes_noedid(connector, 8192, 8192);
989 ret += qxl_add_extra_modes(connector);
990 ret += qxl_add_monitors_config_modes(connector);
991 drm_set_preferred_mode(connector, pwidth, pheight);
992 return ret;
993 }
994
995 static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector,
996 struct drm_display_mode *mode)
997 {
998 struct drm_device *ddev = connector->dev;
999 struct qxl_device *qdev = to_qxl(ddev);
1000
1001 if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0)
1002 return MODE_BAD;
1003
1004 return MODE_OK;
1005 }
1006
1007 static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
1008 {
1009 struct qxl_output *qxl_output =
1010 drm_connector_to_qxl_output(connector);
1011
1012 DRM_DEBUG("\n");
1013 return &qxl_output->enc;
1014 }
1015
1016 static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
1017 .get_modes = qxl_conn_get_modes,
1018 .mode_valid = qxl_conn_mode_valid,
1019 .best_encoder = qxl_best_encoder,
1020 };
1021
1022 static enum drm_connector_status qxl_conn_detect(
1023 struct drm_connector *connector,
1024 bool force)
1025 {
1026 struct qxl_output *output =
1027 drm_connector_to_qxl_output(connector);
1028 struct drm_device *ddev = connector->dev;
1029 struct qxl_device *qdev = to_qxl(ddev);
1030 bool connected = false;
1031
1032 /* The first monitor is always connected */
1033 if (!qdev->client_monitors_config) {
1034 if (output->index == 0)
1035 connected = true;
1036 } else
1037 connected = qdev->client_monitors_config->count > output->index &&
1038 qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
1039
1040 DRM_DEBUG("#%d connected: %d\n", output->index, connected);
1041
1042 return connected ? connector_status_connected
1043 : connector_status_disconnected;
1044 }
1045
1046 static void qxl_conn_destroy(struct drm_connector *connector)
1047 {
1048 struct qxl_output *qxl_output =
1049 drm_connector_to_qxl_output(connector);
1050
1051 drm_connector_unregister(connector);
1052 drm_connector_cleanup(connector);
1053 kfree(qxl_output);
1054 }
1055
1056 static const struct drm_connector_funcs qxl_connector_funcs = {
1057 .detect = qxl_conn_detect,
1058 .fill_modes = drm_helper_probe_single_connector_modes,
1059 .destroy = qxl_conn_destroy,
1060 .reset = drm_atomic_helper_connector_reset,
1061 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1062 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1063 };
1064
1065 static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1066 {
1067 if (qdev->hotplug_mode_update_property)
1068 return 0;
1069
1070 qdev->hotplug_mode_update_property =
1071 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1072 "hotplug_mode_update", 0, 1);
1073
1074 return 0;
1075 }
1076
1077 static int qdev_output_init(struct drm_device *dev, int num_output)
1078 {
1079 struct qxl_device *qdev = to_qxl(dev);
1080 struct qxl_output *qxl_output;
1081 struct drm_connector *connector;
1082 struct drm_encoder *encoder;
1083 int ret;
1084
1085 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1086 if (!qxl_output)
1087 return -ENOMEM;
1088
1089 qxl_output->index = num_output;
1090
1091 connector = &qxl_output->base;
1092 encoder = &qxl_output->enc;
1093 drm_connector_init(dev, &qxl_output->base,
1094 &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1095
1096 ret = drm_simple_encoder_init(dev, &qxl_output->enc,
1097 DRM_MODE_ENCODER_VIRTUAL);
1098 if (ret) {
1099 drm_err(dev, "drm_simple_encoder_init() failed, error %d\n",
1100 ret);
1101 goto err_drm_connector_cleanup;
1102 }
1103
1104 /* we get HPD via client monitors config */
1105 connector->polled = DRM_CONNECTOR_POLL_HPD;
1106 encoder->possible_crtcs = 1 << num_output;
1107 drm_connector_attach_encoder(&qxl_output->base,
1108 &qxl_output->enc);
1109 drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1110
1111 drm_object_attach_property(&connector->base,
1112 qdev->hotplug_mode_update_property, 0);
1113 drm_object_attach_property(&connector->base,
1114 dev->mode_config.suggested_x_property, 0);
1115 drm_object_attach_property(&connector->base,
1116 dev->mode_config.suggested_y_property, 0);
1117 return 0;
1118
1119 err_drm_connector_cleanup:
1120 drm_connector_cleanup(&qxl_output->base);
1121 kfree(qxl_output);
1122 return ret;
1123 }
1124
1125 static struct drm_framebuffer *
1126 qxl_user_framebuffer_create(struct drm_device *dev,
1127 struct drm_file *file_priv,
1128 const struct drm_mode_fb_cmd2 *mode_cmd)
1129 {
1130 return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd,
1131 &qxl_fb_funcs);
1132 }
1133
1134 static const struct drm_mode_config_funcs qxl_mode_funcs = {
1135 .fb_create = qxl_user_framebuffer_create,
1136 .atomic_check = drm_atomic_helper_check,
1137 .atomic_commit = drm_atomic_helper_commit,
1138 };
1139
1140 int qxl_create_monitors_object(struct qxl_device *qdev)
1141 {
1142 int ret;
1143 struct drm_gem_object *gobj;
1144 struct dma_buf_map map;
1145 int monitors_config_size = sizeof(struct qxl_monitors_config) +
1146 qxl_num_crtc * sizeof(struct qxl_head);
1147
1148 ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1149 QXL_GEM_DOMAIN_VRAM,
1150 false, false, NULL, &gobj);
1151 if (ret) {
1152 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1153 return -ENOMEM;
1154 }
1155 qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1156
1157 ret = qxl_bo_pin(qdev->monitors_config_bo);
1158 if (ret)
1159 return ret;
1160
1161 qxl_bo_kmap(qdev->monitors_config_bo, &map);
1162
1163 qdev->monitors_config = qdev->monitors_config_bo->kptr;
1164 qdev->ram_header->monitors_config =
1165 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1166
1167 memset(qdev->monitors_config, 0, monitors_config_size);
1168 qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]),
1169 GFP_KERNEL);
1170 if (!qdev->dumb_heads) {
1171 qxl_destroy_monitors_object(qdev);
1172 return -ENOMEM;
1173 }
1174 return 0;
1175 }
1176
1177 int qxl_destroy_monitors_object(struct qxl_device *qdev)
1178 {
1179 int ret;
1180
1181 qdev->monitors_config = NULL;
1182 qdev->ram_header->monitors_config = 0;
1183
1184 qxl_bo_kunmap(qdev->monitors_config_bo);
1185 ret = qxl_bo_unpin(qdev->monitors_config_bo);
1186 if (ret)
1187 return ret;
1188
1189 qxl_bo_unref(&qdev->monitors_config_bo);
1190 return 0;
1191 }
1192
1193 int qxl_modeset_init(struct qxl_device *qdev)
1194 {
1195 int i;
1196 int ret;
1197
1198 drm_mode_config_init(&qdev->ddev);
1199
1200 ret = qxl_create_monitors_object(qdev);
1201 if (ret)
1202 return ret;
1203
1204 qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
1205
1206 /* modes will be validated against the framebuffer size */
1207 qdev->ddev.mode_config.min_width = 0;
1208 qdev->ddev.mode_config.min_height = 0;
1209 qdev->ddev.mode_config.max_width = 8192;
1210 qdev->ddev.mode_config.max_height = 8192;
1211
1212 qdev->ddev.mode_config.fb_base = qdev->vram_base;
1213
1214 drm_mode_create_suggested_offset_properties(&qdev->ddev);
1215 qxl_mode_create_hotplug_mode_update_property(qdev);
1216
1217 for (i = 0 ; i < qxl_num_crtc; ++i) {
1218 qdev_crtc_init(&qdev->ddev, i);
1219 qdev_output_init(&qdev->ddev, i);
1220 }
1221
1222 qxl_display_read_client_monitors_config(qdev);
1223
1224 drm_mode_config_reset(&qdev->ddev);
1225 return 0;
1226 }
1227
1228 void qxl_modeset_fini(struct qxl_device *qdev)
1229 {
1230 qxl_destroy_monitors_object(qdev);
1231 drm_mode_config_cleanup(&qdev->ddev);
1232 }
Linux with added FPC-III support