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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 drm_framebuffer *fb = plane_state->fb;
489 struct qxl_crtc *qcrtc = to_qxl_crtc(plane_state->crtc);
490 struct qxl_cursor_cmd *cmd;
491 struct qxl_release *release;
492 int ret = 0;
493
494 if (!qcrtc->cursor_bo)
495 return 0;
496
497 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
498 QXL_RELEASE_CURSOR_CMD,
499 &release, NULL);
500 if (ret)
501 return ret;
502
503 ret = qxl_release_list_add(release, qcrtc->cursor_bo);
504 if (ret)
505 goto out_free_release;
506
507 ret = qxl_release_reserve_list(release, false);
508 if (ret)
509 goto out_free_release;
510
511 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
512 cmd->type = QXL_CURSOR_SET;
513 cmd->u.set.position.x = plane_state->crtc_x + fb->hot_x;
514 cmd->u.set.position.y = plane_state->crtc_y + fb->hot_y;
515
516 cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0);
517
518 cmd->u.set.visible = 1;
519 qxl_release_unmap(qdev, release, &cmd->release_info);
520
521 qxl_release_fence_buffer_objects(release);
522 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
523
524 return ret;
525
526out_free_release:
527 qxl_release_free(qdev, release);
528 return ret;
529}
530
531static int qxl_primary_move_cursor(struct qxl_device *qdev,
532 struct drm_plane_state *plane_state)
533{
534 struct drm_framebuffer *fb = plane_state->fb;
535 struct qxl_crtc *qcrtc = to_qxl_crtc(plane_state->crtc);
536 struct qxl_cursor_cmd *cmd;
537 struct qxl_release *release;
538 int ret = 0;
539
540 if (!qcrtc->cursor_bo)
541 return 0;
542
543 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
544 QXL_RELEASE_CURSOR_CMD,
545 &release, NULL);
546 if (ret)
547 return ret;
548
549 ret = qxl_release_reserve_list(release, true);
550 if (ret) {
551 qxl_release_free(qdev, release);
552 return ret;
553 }
554
555 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
556 cmd->type = QXL_CURSOR_MOVE;
557 cmd->u.position.x = plane_state->crtc_x + fb->hot_x;
558 cmd->u.position.y = plane_state->crtc_y + fb->hot_y;
559 qxl_release_unmap(qdev, release, &cmd->release_info);
560
561 qxl_release_fence_buffer_objects(release);
562 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
563 return ret;
564}
565
566static struct qxl_bo *qxl_create_cursor(struct qxl_device *qdev,
567 struct qxl_bo *user_bo,
568 int hot_x, int hot_y)
569{
570 static const u32 size = 64 * 64 * 4;
571 struct qxl_bo *cursor_bo;
572 struct iosys_map cursor_map;
573 struct iosys_map user_map;
574 struct qxl_cursor cursor;
575 int ret;
576
577 if (!user_bo)
578 return NULL;
579
580 ret = qxl_bo_create(qdev, sizeof(struct qxl_cursor) + size,
581 false, true, QXL_GEM_DOMAIN_VRAM, 1,
582 NULL, &cursor_bo);
583 if (ret)
584 goto err;
585
586 ret = qxl_bo_vmap(cursor_bo, &cursor_map);
587 if (ret)
588 goto err_unref;
589
590 ret = qxl_bo_vmap(user_bo, &user_map);
591 if (ret)
592 goto err_unmap;
593
594 cursor.header.unique = 0;
595 cursor.header.type = SPICE_CURSOR_TYPE_ALPHA;
596 cursor.header.width = 64;
597 cursor.header.height = 64;
598 cursor.header.hot_spot_x = hot_x;
599 cursor.header.hot_spot_y = hot_y;
600 cursor.data_size = size;
601 cursor.chunk.next_chunk = 0;
602 cursor.chunk.prev_chunk = 0;
603 cursor.chunk.data_size = size;
604 if (cursor_map.is_iomem) {
605 memcpy_toio(cursor_map.vaddr_iomem,
606 &cursor, sizeof(cursor));
607 memcpy_toio(cursor_map.vaddr_iomem + sizeof(cursor),
608 user_map.vaddr, size);
609 } else {
610 memcpy(cursor_map.vaddr,
611 &cursor, sizeof(cursor));
612 memcpy(cursor_map.vaddr + sizeof(cursor),
613 user_map.vaddr, size);
614 }
615
616 qxl_bo_vunmap(user_bo);
617 qxl_bo_vunmap(cursor_bo);
618 return cursor_bo;
619
620err_unmap:
621 qxl_bo_vunmap(cursor_bo);
622err_unref:
623 qxl_bo_unpin(cursor_bo);
624 qxl_bo_unref(&cursor_bo);
625err:
626 return NULL;
627}
628
629static void qxl_free_cursor(struct qxl_bo *cursor_bo)
630{
631 if (!cursor_bo)
632 return;
633
634 qxl_bo_unpin(cursor_bo);
635 qxl_bo_unref(&cursor_bo);
636}
637
638static void qxl_primary_atomic_update(struct drm_plane *plane,
639 struct drm_atomic_state *state)
640{
641 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
642 plane);
643 struct qxl_device *qdev = to_qxl(plane->dev);
644 struct qxl_bo *bo = gem_to_qxl_bo(new_state->fb->obj[0]);
645 struct qxl_bo *primary;
646 struct drm_clip_rect norect = {
647 .x1 = 0,
648 .y1 = 0,
649 .x2 = new_state->fb->width,
650 .y2 = new_state->fb->height
651 };
652 uint32_t dumb_shadow_offset = 0;
653
654 primary = bo->shadow ? bo->shadow : bo;
655
656 if (!primary->is_primary) {
657 if (qdev->primary_bo)
658 qxl_io_destroy_primary(qdev);
659 qxl_io_create_primary(qdev, primary);
660 qxl_primary_apply_cursor(qdev, plane->state);
661 }
662
663 if (bo->is_dumb)
664 dumb_shadow_offset =
665 qdev->dumb_heads[new_state->crtc->index].x;
666
667 qxl_draw_dirty_fb(qdev, new_state->fb, bo, 0, 0, &norect, 1, 1,
668 dumb_shadow_offset);
669}
670
671static void qxl_primary_atomic_disable(struct drm_plane *plane,
672 struct drm_atomic_state *state)
673{
674 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
675 plane);
676 struct qxl_device *qdev = to_qxl(plane->dev);
677
678 if (old_state->fb) {
679 struct qxl_bo *bo = gem_to_qxl_bo(old_state->fb->obj[0]);
680
681 if (bo->shadow)
682 bo = bo->shadow;
683 if (bo->is_primary)
684 qxl_io_destroy_primary(qdev);
685 }
686}
687
688static void qxl_cursor_atomic_update(struct drm_plane *plane,
689 struct drm_atomic_state *state)
690{
691 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
692 plane);
693 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
694 plane);
695 struct qxl_device *qdev = to_qxl(plane->dev);
696 struct drm_framebuffer *fb = new_state->fb;
697
698 if (fb != old_state->fb) {
699 qxl_primary_apply_cursor(qdev, new_state);
700 } else {
701 qxl_primary_move_cursor(qdev, new_state);
702 }
703}
704
705static void qxl_cursor_atomic_disable(struct drm_plane *plane,
706 struct drm_atomic_state *state)
707{
708 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
709 plane);
710 struct qxl_device *qdev = to_qxl(plane->dev);
711 struct qxl_crtc *qcrtc;
712 struct qxl_release *release;
713 struct qxl_cursor_cmd *cmd;
714 int ret;
715
716 ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
717 QXL_RELEASE_CURSOR_CMD,
718 &release, NULL);
719 if (ret)
720 return;
721
722 ret = qxl_release_reserve_list(release, true);
723 if (ret) {
724 qxl_release_free(qdev, release);
725 return;
726 }
727
728 cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
729 cmd->type = QXL_CURSOR_HIDE;
730 qxl_release_unmap(qdev, release, &cmd->release_info);
731
732 qxl_release_fence_buffer_objects(release);
733 qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
734
735 qcrtc = to_qxl_crtc(old_state->crtc);
736 qxl_free_cursor(qcrtc->cursor_bo);
737 qcrtc->cursor_bo = NULL;
738}
739
740static void qxl_update_dumb_head(struct qxl_device *qdev,
741 int index, struct qxl_bo *bo)
742{
743 uint32_t width, height;
744
745 if (index >= qdev->monitors_config->max_allowed)
746 return;
747
748 if (bo && bo->is_dumb) {
749 width = bo->surf.width;
750 height = bo->surf.height;
751 } else {
752 width = 0;
753 height = 0;
754 }
755
756 if (qdev->dumb_heads[index].width == width &&
757 qdev->dumb_heads[index].height == height)
758 return;
759
760 DRM_DEBUG("#%d: %dx%d -> %dx%d\n", index,
761 qdev->dumb_heads[index].width,
762 qdev->dumb_heads[index].height,
763 width, height);
764 qdev->dumb_heads[index].width = width;
765 qdev->dumb_heads[index].height = height;
766}
767
768static void qxl_calc_dumb_shadow(struct qxl_device *qdev,
769 struct qxl_surface *surf)
770{
771 struct qxl_head *head;
772 int i;
773
774 memset(surf, 0, sizeof(*surf));
775 for (i = 0; i < qdev->monitors_config->max_allowed; i++) {
776 head = qdev->dumb_heads + i;
777 head->x = surf->width;
778 surf->width += head->width;
779 if (surf->height < head->height)
780 surf->height = head->height;
781 }
782 if (surf->width < 64)
783 surf->width = 64;
784 if (surf->height < 64)
785 surf->height = 64;
786 surf->format = SPICE_SURFACE_FMT_32_xRGB;
787 surf->stride = surf->width * 4;
788
789 if (!qdev->dumb_shadow_bo ||
790 qdev->dumb_shadow_bo->surf.width != surf->width ||
791 qdev->dumb_shadow_bo->surf.height != surf->height)
792 DRM_DEBUG("%dx%d\n", surf->width, surf->height);
793}
794
795static void qxl_prepare_shadow(struct qxl_device *qdev, struct qxl_bo *user_bo,
796 int crtc_index)
797{
798 struct qxl_surface surf;
799
800 qxl_update_dumb_head(qdev, crtc_index,
801 user_bo);
802 qxl_calc_dumb_shadow(qdev, &surf);
803 if (!qdev->dumb_shadow_bo ||
804 qdev->dumb_shadow_bo->surf.width != surf.width ||
805 qdev->dumb_shadow_bo->surf.height != surf.height) {
806 if (qdev->dumb_shadow_bo) {
807 qxl_bo_unpin(qdev->dumb_shadow_bo);
808 drm_gem_object_put
809 (&qdev->dumb_shadow_bo->tbo.base);
810 qdev->dumb_shadow_bo = NULL;
811 }
812 qxl_bo_create(qdev, surf.height * surf.stride,
813 true, true, QXL_GEM_DOMAIN_SURFACE, 0,
814 &surf, &qdev->dumb_shadow_bo);
815 }
816 if (user_bo->shadow != qdev->dumb_shadow_bo) {
817 if (user_bo->shadow) {
818 qxl_bo_unpin(user_bo->shadow);
819 drm_gem_object_put
820 (&user_bo->shadow->tbo.base);
821 user_bo->shadow = NULL;
822 }
823 drm_gem_object_get(&qdev->dumb_shadow_bo->tbo.base);
824 user_bo->shadow = qdev->dumb_shadow_bo;
825 qxl_bo_pin(user_bo->shadow);
826 }
827}
828
829static int qxl_plane_prepare_fb(struct drm_plane *plane,
830 struct drm_plane_state *new_state)
831{
832 struct qxl_device *qdev = to_qxl(plane->dev);
833 struct drm_gem_object *obj;
834 struct qxl_bo *user_bo;
835 int ret;
836
837 if (!new_state->fb)
838 return 0;
839
840 obj = new_state->fb->obj[0];
841 user_bo = gem_to_qxl_bo(obj);
842
843 if (plane->type == DRM_PLANE_TYPE_PRIMARY &&
844 user_bo->is_dumb) {
845 qxl_prepare_shadow(qdev, user_bo, new_state->crtc->index);
846 }
847
848 if (plane->type == DRM_PLANE_TYPE_CURSOR &&
849 plane->state->fb != new_state->fb) {
850 struct qxl_crtc *qcrtc = to_qxl_crtc(new_state->crtc);
851 struct qxl_bo *old_cursor_bo = qcrtc->cursor_bo;
852
853 qcrtc->cursor_bo = qxl_create_cursor(qdev, user_bo,
854 new_state->fb->hot_x,
855 new_state->fb->hot_y);
856 qxl_free_cursor(old_cursor_bo);
857 }
858
859 ret = qxl_bo_pin(user_bo);
860 if (ret)
861 return ret;
862
863 return drm_gem_plane_helper_prepare_fb(plane, new_state);
864}
865
866static void qxl_plane_cleanup_fb(struct drm_plane *plane,
867 struct drm_plane_state *old_state)
868{
869 struct drm_gem_object *obj;
870 struct qxl_bo *user_bo;
871
872 if (!old_state->fb) {
873 /*
874 * we never executed prepare_fb, so there's nothing to
875 * unpin.
876 */
877 return;
878 }
879
880 obj = old_state->fb->obj[0];
881 user_bo = gem_to_qxl_bo(obj);
882 qxl_bo_unpin(user_bo);
883
884 if (old_state->fb != plane->state->fb && user_bo->shadow) {
885 qxl_bo_unpin(user_bo->shadow);
886 drm_gem_object_put(&user_bo->shadow->tbo.base);
887 user_bo->shadow = NULL;
888 }
889}
890
891static const uint32_t qxl_cursor_plane_formats[] = {
892 DRM_FORMAT_ARGB8888,
893};
894
895static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
896 .atomic_update = qxl_cursor_atomic_update,
897 .atomic_disable = qxl_cursor_atomic_disable,
898 .prepare_fb = qxl_plane_prepare_fb,
899 .cleanup_fb = qxl_plane_cleanup_fb,
900};
901
902static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
903 .update_plane = drm_atomic_helper_update_plane,
904 .disable_plane = drm_atomic_helper_disable_plane,
905 .destroy = drm_plane_helper_destroy,
906 .reset = drm_atomic_helper_plane_reset,
907 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
908 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
909};
910
911static const uint32_t qxl_primary_plane_formats[] = {
912 DRM_FORMAT_XRGB8888,
913 DRM_FORMAT_ARGB8888,
914};
915
916static const struct drm_plane_helper_funcs primary_helper_funcs = {
917 .atomic_check = qxl_primary_atomic_check,
918 .atomic_update = qxl_primary_atomic_update,
919 .atomic_disable = qxl_primary_atomic_disable,
920 .prepare_fb = qxl_plane_prepare_fb,
921 .cleanup_fb = qxl_plane_cleanup_fb,
922};
923
924static const struct drm_plane_funcs qxl_primary_plane_funcs = {
925 .update_plane = drm_atomic_helper_update_plane,
926 .disable_plane = drm_atomic_helper_disable_plane,
927 .destroy = drm_plane_helper_destroy,
928 .reset = drm_atomic_helper_plane_reset,
929 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
930 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
931};
932
933static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
934 unsigned int possible_crtcs,
935 enum drm_plane_type type)
936{
937 const struct drm_plane_helper_funcs *helper_funcs = NULL;
938 struct drm_plane *plane;
939 const struct drm_plane_funcs *funcs;
940 const uint32_t *formats;
941 int num_formats;
942 int err;
943
944 if (type == DRM_PLANE_TYPE_PRIMARY) {
945 funcs = &qxl_primary_plane_funcs;
946 formats = qxl_primary_plane_formats;
947 num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
948 helper_funcs = &primary_helper_funcs;
949 } else if (type == DRM_PLANE_TYPE_CURSOR) {
950 funcs = &qxl_cursor_plane_funcs;
951 formats = qxl_cursor_plane_formats;
952 helper_funcs = &qxl_cursor_helper_funcs;
953 num_formats = ARRAY_SIZE(qxl_cursor_plane_formats);
954 } else {
955 return ERR_PTR(-EINVAL);
956 }
957
958 plane = kzalloc(sizeof(*plane), GFP_KERNEL);
959 if (!plane)
960 return ERR_PTR(-ENOMEM);
961
962 err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs,
963 funcs, formats, num_formats,
964 NULL, type, NULL);
965 if (err)
966 goto free_plane;
967
968 drm_plane_helper_add(plane, helper_funcs);
969
970 return plane;
971
972free_plane:
973 kfree(plane);
974 return ERR_PTR(-EINVAL);
975}
976
977static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
978{
979 struct qxl_crtc *qxl_crtc;
980 struct drm_plane *primary, *cursor;
981 struct qxl_device *qdev = to_qxl(dev);
982 int r;
983
984 qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
985 if (!qxl_crtc)
986 return -ENOMEM;
987
988 primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY);
989 if (IS_ERR(primary)) {
990 r = -ENOMEM;
991 goto free_mem;
992 }
993
994 cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR);
995 if (IS_ERR(cursor)) {
996 r = -ENOMEM;
997 goto clean_primary;
998 }
999
1000 r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor,
1001 &qxl_crtc_funcs, NULL);
1002 if (r)
1003 goto clean_cursor;
1004
1005 qxl_crtc->index = crtc_id;
1006 drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
1007 return 0;
1008
1009clean_cursor:
1010 drm_plane_cleanup(cursor);
1011 kfree(cursor);
1012clean_primary:
1013 drm_plane_cleanup(primary);
1014 kfree(primary);
1015free_mem:
1016 kfree(qxl_crtc);
1017 return r;
1018}
1019
1020static int qxl_conn_get_modes(struct drm_connector *connector)
1021{
1022 struct drm_device *dev = connector->dev;
1023 struct qxl_device *qdev = to_qxl(dev);
1024 struct qxl_output *output = drm_connector_to_qxl_output(connector);
1025 unsigned int pwidth = 1024;
1026 unsigned int pheight = 768;
1027 int ret = 0;
1028
1029 if (qdev->client_monitors_config) {
1030 struct qxl_head *head;
1031 head = &qdev->client_monitors_config->heads[output->index];
1032 if (head->width)
1033 pwidth = head->width;
1034 if (head->height)
1035 pheight = head->height;
1036 }
1037
1038 ret += drm_add_modes_noedid(connector, 8192, 8192);
1039 ret += qxl_add_extra_modes(connector);
1040 ret += qxl_add_monitors_config_modes(connector);
1041 drm_set_preferred_mode(connector, pwidth, pheight);
1042 return ret;
1043}
1044
1045static enum drm_mode_status qxl_conn_mode_valid(struct drm_connector *connector,
1046 struct drm_display_mode *mode)
1047{
1048 struct drm_device *ddev = connector->dev;
1049 struct qxl_device *qdev = to_qxl(ddev);
1050
1051 if (qxl_check_mode(qdev, mode->hdisplay, mode->vdisplay) != 0)
1052 return MODE_BAD;
1053
1054 return MODE_OK;
1055}
1056
1057static struct drm_encoder *qxl_best_encoder(struct drm_connector *connector)
1058{
1059 struct qxl_output *qxl_output =
1060 drm_connector_to_qxl_output(connector);
1061
1062 DRM_DEBUG("\n");
1063 return &qxl_output->enc;
1064}
1065
1066static const struct drm_connector_helper_funcs qxl_connector_helper_funcs = {
1067 .get_modes = qxl_conn_get_modes,
1068 .mode_valid = qxl_conn_mode_valid,
1069 .best_encoder = qxl_best_encoder,
1070};
1071
1072static enum drm_connector_status qxl_conn_detect(
1073 struct drm_connector *connector,
1074 bool force)
1075{
1076 struct qxl_output *output =
1077 drm_connector_to_qxl_output(connector);
1078 struct drm_device *ddev = connector->dev;
1079 struct qxl_device *qdev = to_qxl(ddev);
1080 bool connected = false;
1081
1082 /* The first monitor is always connected */
1083 if (!qdev->client_monitors_config) {
1084 if (output->index == 0)
1085 connected = true;
1086 } else
1087 connected = qdev->client_monitors_config->count > output->index &&
1088 qxl_head_enabled(&qdev->client_monitors_config->heads[output->index]);
1089
1090 DRM_DEBUG("#%d connected: %d\n", output->index, connected);
1091
1092 return connected ? connector_status_connected
1093 : connector_status_disconnected;
1094}
1095
1096static void qxl_conn_destroy(struct drm_connector *connector)
1097{
1098 struct qxl_output *qxl_output =
1099 drm_connector_to_qxl_output(connector);
1100
1101 drm_connector_unregister(connector);
1102 drm_connector_cleanup(connector);
1103 kfree(qxl_output);
1104}
1105
1106static const struct drm_connector_funcs qxl_connector_funcs = {
1107 .detect = qxl_conn_detect,
1108 .fill_modes = drm_helper_probe_single_connector_modes,
1109 .destroy = qxl_conn_destroy,
1110 .reset = drm_atomic_helper_connector_reset,
1111 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1112 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1113};
1114
1115static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
1116{
1117 if (qdev->hotplug_mode_update_property)
1118 return 0;
1119
1120 qdev->hotplug_mode_update_property =
1121 drm_property_create_range(&qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
1122 "hotplug_mode_update", 0, 1);
1123
1124 return 0;
1125}
1126
1127static int qdev_output_init(struct drm_device *dev, int num_output)
1128{
1129 struct qxl_device *qdev = to_qxl(dev);
1130 struct qxl_output *qxl_output;
1131 struct drm_connector *connector;
1132 struct drm_encoder *encoder;
1133 int ret;
1134
1135 qxl_output = kzalloc(sizeof(struct qxl_output), GFP_KERNEL);
1136 if (!qxl_output)
1137 return -ENOMEM;
1138
1139 qxl_output->index = num_output;
1140
1141 connector = &qxl_output->base;
1142 encoder = &qxl_output->enc;
1143 drm_connector_init(dev, &qxl_output->base,
1144 &qxl_connector_funcs, DRM_MODE_CONNECTOR_VIRTUAL);
1145
1146 ret = drm_simple_encoder_init(dev, &qxl_output->enc,
1147 DRM_MODE_ENCODER_VIRTUAL);
1148 if (ret) {
1149 drm_err(dev, "drm_simple_encoder_init() failed, error %d\n",
1150 ret);
1151 goto err_drm_connector_cleanup;
1152 }
1153
1154 /* we get HPD via client monitors config */
1155 connector->polled = DRM_CONNECTOR_POLL_HPD;
1156 encoder->possible_crtcs = 1 << num_output;
1157 drm_connector_attach_encoder(&qxl_output->base,
1158 &qxl_output->enc);
1159 drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
1160
1161 drm_object_attach_property(&connector->base,
1162 qdev->hotplug_mode_update_property, 0);
1163 drm_object_attach_property(&connector->base,
1164 dev->mode_config.suggested_x_property, 0);
1165 drm_object_attach_property(&connector->base,
1166 dev->mode_config.suggested_y_property, 0);
1167 return 0;
1168
1169err_drm_connector_cleanup:
1170 drm_connector_cleanup(&qxl_output->base);
1171 kfree(qxl_output);
1172 return ret;
1173}
1174
1175static struct drm_framebuffer *
1176qxl_user_framebuffer_create(struct drm_device *dev,
1177 struct drm_file *file_priv,
1178 const struct drm_mode_fb_cmd2 *mode_cmd)
1179{
1180 return drm_gem_fb_create_with_funcs(dev, file_priv, mode_cmd,
1181 &qxl_fb_funcs);
1182}
1183
1184static const struct drm_mode_config_funcs qxl_mode_funcs = {
1185 .fb_create = qxl_user_framebuffer_create,
1186 .atomic_check = drm_atomic_helper_check,
1187 .atomic_commit = drm_atomic_helper_commit,
1188};
1189
1190int qxl_create_monitors_object(struct qxl_device *qdev)
1191{
1192 int ret;
1193 struct drm_gem_object *gobj;
1194 struct iosys_map map;
1195 int monitors_config_size = sizeof(struct qxl_monitors_config) +
1196 qxl_num_crtc * sizeof(struct qxl_head);
1197
1198 ret = qxl_gem_object_create(qdev, monitors_config_size, 0,
1199 QXL_GEM_DOMAIN_VRAM,
1200 false, false, NULL, &gobj);
1201 if (ret) {
1202 DRM_ERROR("%s: failed to create gem ret=%d\n", __func__, ret);
1203 return -ENOMEM;
1204 }
1205 qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
1206
1207 ret = qxl_bo_vmap(qdev->monitors_config_bo, &map);
1208 if (ret)
1209 return ret;
1210
1211 qdev->monitors_config = qdev->monitors_config_bo->kptr;
1212 qdev->ram_header->monitors_config =
1213 qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
1214
1215 memset(qdev->monitors_config, 0, monitors_config_size);
1216 qdev->dumb_heads = kcalloc(qxl_num_crtc, sizeof(qdev->dumb_heads[0]),
1217 GFP_KERNEL);
1218 if (!qdev->dumb_heads) {
1219 qxl_destroy_monitors_object(qdev);
1220 return -ENOMEM;
1221 }
1222 return 0;
1223}
1224
1225int qxl_destroy_monitors_object(struct qxl_device *qdev)
1226{
1227 int ret;
1228
1229 if (!qdev->monitors_config_bo)
1230 return 0;
1231
1232 qdev->monitors_config = NULL;
1233 qdev->ram_header->monitors_config = 0;
1234
1235 ret = qxl_bo_vunmap(qdev->monitors_config_bo);
1236 if (ret)
1237 return ret;
1238
1239 qxl_bo_unref(&qdev->monitors_config_bo);
1240 return 0;
1241}
1242
1243int qxl_modeset_init(struct qxl_device *qdev)
1244{
1245 int i;
1246 int ret;
1247
1248 ret = drmm_mode_config_init(&qdev->ddev);
1249 if (ret)
1250 return ret;
1251
1252 ret = qxl_create_monitors_object(qdev);
1253 if (ret)
1254 return ret;
1255
1256 qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
1257
1258 /* modes will be validated against the framebuffer size */
1259 qdev->ddev.mode_config.min_width = 0;
1260 qdev->ddev.mode_config.min_height = 0;
1261 qdev->ddev.mode_config.max_width = 8192;
1262 qdev->ddev.mode_config.max_height = 8192;
1263
1264 drm_mode_create_suggested_offset_properties(&qdev->ddev);
1265 qxl_mode_create_hotplug_mode_update_property(qdev);
1266
1267 for (i = 0 ; i < qxl_num_crtc; ++i) {
1268 qdev_crtc_init(&qdev->ddev, i);
1269 qdev_output_init(&qdev->ddev, i);
1270 }
1271
1272 qxl_display_read_client_monitors_config(qdev);
1273
1274 drm_mode_config_reset(&qdev->ddev);
1275 return 0;
1276}
1277
1278void qxl_modeset_fini(struct qxl_device *qdev)
1279{
1280 if (qdev->dumb_shadow_bo) {
1281 qxl_bo_unpin(qdev->dumb_shadow_bo);
1282 drm_gem_object_put(&qdev->dumb_shadow_bo->tbo.base);
1283 qdev->dumb_shadow_bo = NULL;
1284 }
1285 qxl_destroy_monitors_object(qdev);
1286}