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