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1// SPDX-License-Identifier: GPL-2.0 OR MIT
2/**************************************************************************
3 *
4 * Copyright 2009-2015 VMware, Inc., Palo Alto, CA., USA
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#include <drm/drm_atomic.h>
29#include <drm/drm_atomic_helper.h>
30#include <drm/drm_fourcc.h>
31#include <drm/drm_plane_helper.h>
32#include <drm/drm_vblank.h>
33
34#include "vmwgfx_kms.h"
35
36#define vmw_crtc_to_ldu(x) \
37 container_of(x, struct vmw_legacy_display_unit, base.crtc)
38#define vmw_encoder_to_ldu(x) \
39 container_of(x, struct vmw_legacy_display_unit, base.encoder)
40#define vmw_connector_to_ldu(x) \
41 container_of(x, struct vmw_legacy_display_unit, base.connector)
42
43struct vmw_legacy_display {
44 struct list_head active;
45
46 unsigned num_active;
47 unsigned last_num_active;
48
49 struct vmw_framebuffer *fb;
50};
51
52/**
53 * Display unit using the legacy register interface.
54 */
55struct vmw_legacy_display_unit {
56 struct vmw_display_unit base;
57
58 struct list_head active;
59};
60
61static void vmw_ldu_destroy(struct vmw_legacy_display_unit *ldu)
62{
63 list_del_init(&ldu->active);
64 vmw_du_cleanup(&ldu->base);
65 kfree(ldu);
66}
67
68
69/*
70 * Legacy Display Unit CRTC functions
71 */
72
73static void vmw_ldu_crtc_destroy(struct drm_crtc *crtc)
74{
75 vmw_ldu_destroy(vmw_crtc_to_ldu(crtc));
76}
77
78static int vmw_ldu_commit_list(struct vmw_private *dev_priv)
79{
80 struct vmw_legacy_display *lds = dev_priv->ldu_priv;
81 struct vmw_legacy_display_unit *entry;
82 struct drm_framebuffer *fb = NULL;
83 struct drm_crtc *crtc = NULL;
84 int i = 0;
85
86 /* If there is no display topology the host just assumes
87 * that the guest will set the same layout as the host.
88 */
89 if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) {
90 int w = 0, h = 0;
91 list_for_each_entry(entry, &lds->active, active) {
92 crtc = &entry->base.crtc;
93 w = max(w, crtc->x + crtc->mode.hdisplay);
94 h = max(h, crtc->y + crtc->mode.vdisplay);
95 i++;
96 }
97
98 if (crtc == NULL)
99 return 0;
100 fb = entry->base.crtc.primary->state->fb;
101
102 return vmw_kms_write_svga(dev_priv, w, h, fb->pitches[0],
103 fb->format->cpp[0] * 8,
104 fb->format->depth);
105 }
106
107 if (!list_empty(&lds->active)) {
108 entry = list_entry(lds->active.next, typeof(*entry), active);
109 fb = entry->base.crtc.primary->state->fb;
110
111 vmw_kms_write_svga(dev_priv, fb->width, fb->height, fb->pitches[0],
112 fb->format->cpp[0] * 8, fb->format->depth);
113 }
114
115 /* Make sure we always show something. */
116 vmw_write(dev_priv, SVGA_REG_NUM_GUEST_DISPLAYS,
117 lds->num_active ? lds->num_active : 1);
118
119 i = 0;
120 list_for_each_entry(entry, &lds->active, active) {
121 crtc = &entry->base.crtc;
122
123 vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, i);
124 vmw_write(dev_priv, SVGA_REG_DISPLAY_IS_PRIMARY, !i);
125 vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_X, crtc->x);
126 vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_Y, crtc->y);
127 vmw_write(dev_priv, SVGA_REG_DISPLAY_WIDTH, crtc->mode.hdisplay);
128 vmw_write(dev_priv, SVGA_REG_DISPLAY_HEIGHT, crtc->mode.vdisplay);
129 vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
130
131 i++;
132 }
133
134 BUG_ON(i != lds->num_active);
135
136 lds->last_num_active = lds->num_active;
137
138 return 0;
139}
140
141static int vmw_ldu_del_active(struct vmw_private *vmw_priv,
142 struct vmw_legacy_display_unit *ldu)
143{
144 struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
145 if (list_empty(&ldu->active))
146 return 0;
147
148 /* Must init otherwise list_empty(&ldu->active) will not work. */
149 list_del_init(&ldu->active);
150 if (--(ld->num_active) == 0) {
151 BUG_ON(!ld->fb);
152 if (ld->fb->unpin)
153 ld->fb->unpin(ld->fb);
154 ld->fb = NULL;
155 }
156
157 return 0;
158}
159
160static int vmw_ldu_add_active(struct vmw_private *vmw_priv,
161 struct vmw_legacy_display_unit *ldu,
162 struct vmw_framebuffer *vfb)
163{
164 struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
165 struct vmw_legacy_display_unit *entry;
166 struct list_head *at;
167
168 BUG_ON(!ld->num_active && ld->fb);
169 if (vfb != ld->fb) {
170 if (ld->fb && ld->fb->unpin)
171 ld->fb->unpin(ld->fb);
172 vmw_svga_enable(vmw_priv);
173 if (vfb->pin)
174 vfb->pin(vfb);
175 ld->fb = vfb;
176 }
177
178 if (!list_empty(&ldu->active))
179 return 0;
180
181 at = &ld->active;
182 list_for_each_entry(entry, &ld->active, active) {
183 if (entry->base.unit > ldu->base.unit)
184 break;
185
186 at = &entry->active;
187 }
188
189 list_add(&ldu->active, at);
190
191 ld->num_active++;
192
193 return 0;
194}
195
196/**
197 * vmw_ldu_crtc_mode_set_nofb - Enable svga
198 *
199 * @crtc: CRTC associated with the new screen
200 *
201 * For LDU, just enable the svga
202 */
203static void vmw_ldu_crtc_mode_set_nofb(struct drm_crtc *crtc)
204{
205}
206
207/**
208 * vmw_ldu_crtc_atomic_enable - Noop
209 *
210 * @crtc: CRTC associated with the new screen
211 *
212 * This is called after a mode set has been completed. Here's
213 * usually a good place to call vmw_ldu_add_active/vmw_ldu_del_active
214 * but since for LDU the display plane is closely tied to the
215 * CRTC, it makes more sense to do those at plane update time.
216 */
217static void vmw_ldu_crtc_atomic_enable(struct drm_crtc *crtc,
218 struct drm_crtc_state *old_state)
219{
220}
221
222/**
223 * vmw_ldu_crtc_atomic_disable - Turns off CRTC
224 *
225 * @crtc: CRTC to be turned off
226 */
227static void vmw_ldu_crtc_atomic_disable(struct drm_crtc *crtc,
228 struct drm_crtc_state *old_state)
229{
230}
231
232static const struct drm_crtc_funcs vmw_legacy_crtc_funcs = {
233 .gamma_set = vmw_du_crtc_gamma_set,
234 .destroy = vmw_ldu_crtc_destroy,
235 .reset = vmw_du_crtc_reset,
236 .atomic_duplicate_state = vmw_du_crtc_duplicate_state,
237 .atomic_destroy_state = vmw_du_crtc_destroy_state,
238 .set_config = drm_atomic_helper_set_config,
239};
240
241
242/*
243 * Legacy Display Unit encoder functions
244 */
245
246static void vmw_ldu_encoder_destroy(struct drm_encoder *encoder)
247{
248 vmw_ldu_destroy(vmw_encoder_to_ldu(encoder));
249}
250
251static const struct drm_encoder_funcs vmw_legacy_encoder_funcs = {
252 .destroy = vmw_ldu_encoder_destroy,
253};
254
255/*
256 * Legacy Display Unit connector functions
257 */
258
259static void vmw_ldu_connector_destroy(struct drm_connector *connector)
260{
261 vmw_ldu_destroy(vmw_connector_to_ldu(connector));
262}
263
264static const struct drm_connector_funcs vmw_legacy_connector_funcs = {
265 .dpms = vmw_du_connector_dpms,
266 .detect = vmw_du_connector_detect,
267 .fill_modes = vmw_du_connector_fill_modes,
268 .destroy = vmw_ldu_connector_destroy,
269 .reset = vmw_du_connector_reset,
270 .atomic_duplicate_state = vmw_du_connector_duplicate_state,
271 .atomic_destroy_state = vmw_du_connector_destroy_state,
272};
273
274static const struct
275drm_connector_helper_funcs vmw_ldu_connector_helper_funcs = {
276};
277
278/*
279 * Legacy Display Plane Functions
280 */
281
282static void
283vmw_ldu_primary_plane_atomic_update(struct drm_plane *plane,
284 struct drm_plane_state *old_state)
285{
286 struct vmw_private *dev_priv;
287 struct vmw_legacy_display_unit *ldu;
288 struct vmw_framebuffer *vfb;
289 struct drm_framebuffer *fb;
290 struct drm_crtc *crtc = plane->state->crtc ?: old_state->crtc;
291
292
293 ldu = vmw_crtc_to_ldu(crtc);
294 dev_priv = vmw_priv(plane->dev);
295 fb = plane->state->fb;
296
297 vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL;
298
299 if (vfb)
300 vmw_ldu_add_active(dev_priv, ldu, vfb);
301 else
302 vmw_ldu_del_active(dev_priv, ldu);
303
304 vmw_ldu_commit_list(dev_priv);
305}
306
307
308static const struct drm_plane_funcs vmw_ldu_plane_funcs = {
309 .update_plane = drm_atomic_helper_update_plane,
310 .disable_plane = drm_atomic_helper_disable_plane,
311 .destroy = vmw_du_primary_plane_destroy,
312 .reset = vmw_du_plane_reset,
313 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
314 .atomic_destroy_state = vmw_du_plane_destroy_state,
315};
316
317static const struct drm_plane_funcs vmw_ldu_cursor_funcs = {
318 .update_plane = drm_atomic_helper_update_plane,
319 .disable_plane = drm_atomic_helper_disable_plane,
320 .destroy = vmw_du_cursor_plane_destroy,
321 .reset = vmw_du_plane_reset,
322 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
323 .atomic_destroy_state = vmw_du_plane_destroy_state,
324};
325
326/*
327 * Atomic Helpers
328 */
329static const struct
330drm_plane_helper_funcs vmw_ldu_cursor_plane_helper_funcs = {
331 .atomic_check = vmw_du_cursor_plane_atomic_check,
332 .atomic_update = vmw_du_cursor_plane_atomic_update,
333 .prepare_fb = vmw_du_cursor_plane_prepare_fb,
334 .cleanup_fb = vmw_du_plane_cleanup_fb,
335};
336
337static const struct
338drm_plane_helper_funcs vmw_ldu_primary_plane_helper_funcs = {
339 .atomic_check = vmw_du_primary_plane_atomic_check,
340 .atomic_update = vmw_ldu_primary_plane_atomic_update,
341};
342
343static const struct drm_crtc_helper_funcs vmw_ldu_crtc_helper_funcs = {
344 .mode_set_nofb = vmw_ldu_crtc_mode_set_nofb,
345 .atomic_check = vmw_du_crtc_atomic_check,
346 .atomic_begin = vmw_du_crtc_atomic_begin,
347 .atomic_flush = vmw_du_crtc_atomic_flush,
348 .atomic_enable = vmw_ldu_crtc_atomic_enable,
349 .atomic_disable = vmw_ldu_crtc_atomic_disable,
350};
351
352
353static int vmw_ldu_init(struct vmw_private *dev_priv, unsigned unit)
354{
355 struct vmw_legacy_display_unit *ldu;
356 struct drm_device *dev = dev_priv->dev;
357 struct drm_connector *connector;
358 struct drm_encoder *encoder;
359 struct drm_plane *primary, *cursor;
360 struct drm_crtc *crtc;
361 int ret;
362
363 ldu = kzalloc(sizeof(*ldu), GFP_KERNEL);
364 if (!ldu)
365 return -ENOMEM;
366
367 ldu->base.unit = unit;
368 crtc = &ldu->base.crtc;
369 encoder = &ldu->base.encoder;
370 connector = &ldu->base.connector;
371 primary = &ldu->base.primary;
372 cursor = &ldu->base.cursor;
373
374 INIT_LIST_HEAD(&ldu->active);
375
376 ldu->base.pref_active = (unit == 0);
377 ldu->base.pref_width = dev_priv->initial_width;
378 ldu->base.pref_height = dev_priv->initial_height;
379 ldu->base.pref_mode = NULL;
380
381 /*
382 * Remove this after enabling atomic because property values can
383 * only exist in a state object
384 */
385 ldu->base.is_implicit = true;
386
387 /* Initialize primary plane */
388 vmw_du_plane_reset(primary);
389
390 ret = drm_universal_plane_init(dev, &ldu->base.primary,
391 0, &vmw_ldu_plane_funcs,
392 vmw_primary_plane_formats,
393 ARRAY_SIZE(vmw_primary_plane_formats),
394 NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
395 if (ret) {
396 DRM_ERROR("Failed to initialize primary plane");
397 goto err_free;
398 }
399
400 drm_plane_helper_add(primary, &vmw_ldu_primary_plane_helper_funcs);
401
402 /* Initialize cursor plane */
403 vmw_du_plane_reset(cursor);
404
405 ret = drm_universal_plane_init(dev, &ldu->base.cursor,
406 0, &vmw_ldu_cursor_funcs,
407 vmw_cursor_plane_formats,
408 ARRAY_SIZE(vmw_cursor_plane_formats),
409 NULL, DRM_PLANE_TYPE_CURSOR, NULL);
410 if (ret) {
411 DRM_ERROR("Failed to initialize cursor plane");
412 drm_plane_cleanup(&ldu->base.primary);
413 goto err_free;
414 }
415
416 drm_plane_helper_add(cursor, &vmw_ldu_cursor_plane_helper_funcs);
417
418 vmw_du_connector_reset(connector);
419 ret = drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
420 DRM_MODE_CONNECTOR_VIRTUAL);
421 if (ret) {
422 DRM_ERROR("Failed to initialize connector\n");
423 goto err_free;
424 }
425
426 drm_connector_helper_add(connector, &vmw_ldu_connector_helper_funcs);
427 connector->status = vmw_du_connector_detect(connector, true);
428
429 ret = drm_encoder_init(dev, encoder, &vmw_legacy_encoder_funcs,
430 DRM_MODE_ENCODER_VIRTUAL, NULL);
431 if (ret) {
432 DRM_ERROR("Failed to initialize encoder\n");
433 goto err_free_connector;
434 }
435
436 (void) drm_connector_attach_encoder(connector, encoder);
437 encoder->possible_crtcs = (1 << unit);
438 encoder->possible_clones = 0;
439
440 ret = drm_connector_register(connector);
441 if (ret) {
442 DRM_ERROR("Failed to register connector\n");
443 goto err_free_encoder;
444 }
445
446 vmw_du_crtc_reset(crtc);
447 ret = drm_crtc_init_with_planes(dev, crtc, &ldu->base.primary,
448 &ldu->base.cursor,
449 &vmw_legacy_crtc_funcs, NULL);
450 if (ret) {
451 DRM_ERROR("Failed to initialize CRTC\n");
452 goto err_free_unregister;
453 }
454
455 drm_crtc_helper_add(crtc, &vmw_ldu_crtc_helper_funcs);
456
457 drm_mode_crtc_set_gamma_size(crtc, 256);
458
459 drm_object_attach_property(&connector->base,
460 dev_priv->hotplug_mode_update_property, 1);
461 drm_object_attach_property(&connector->base,
462 dev->mode_config.suggested_x_property, 0);
463 drm_object_attach_property(&connector->base,
464 dev->mode_config.suggested_y_property, 0);
465 if (dev_priv->implicit_placement_property)
466 drm_object_attach_property
467 (&connector->base,
468 dev_priv->implicit_placement_property,
469 1);
470
471 return 0;
472
473err_free_unregister:
474 drm_connector_unregister(connector);
475err_free_encoder:
476 drm_encoder_cleanup(encoder);
477err_free_connector:
478 drm_connector_cleanup(connector);
479err_free:
480 kfree(ldu);
481 return ret;
482}
483
484int vmw_kms_ldu_init_display(struct vmw_private *dev_priv)
485{
486 struct drm_device *dev = dev_priv->dev;
487 int i, ret;
488
489 if (dev_priv->ldu_priv) {
490 DRM_INFO("ldu system already on\n");
491 return -EINVAL;
492 }
493
494 dev_priv->ldu_priv = kmalloc(sizeof(*dev_priv->ldu_priv), GFP_KERNEL);
495 if (!dev_priv->ldu_priv)
496 return -ENOMEM;
497
498 INIT_LIST_HEAD(&dev_priv->ldu_priv->active);
499 dev_priv->ldu_priv->num_active = 0;
500 dev_priv->ldu_priv->last_num_active = 0;
501 dev_priv->ldu_priv->fb = NULL;
502
503 /* for old hardware without multimon only enable one display */
504 if (dev_priv->capabilities & SVGA_CAP_MULTIMON)
505 ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS);
506 else
507 ret = drm_vblank_init(dev, 1);
508 if (ret != 0)
509 goto err_free;
510
511 vmw_kms_create_implicit_placement_property(dev_priv);
512
513 if (dev_priv->capabilities & SVGA_CAP_MULTIMON)
514 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
515 vmw_ldu_init(dev_priv, i);
516 else
517 vmw_ldu_init(dev_priv, 0);
518
519 dev_priv->active_display_unit = vmw_du_legacy;
520
521 DRM_INFO("Legacy Display Unit initialized\n");
522
523 return 0;
524
525err_free:
526 kfree(dev_priv->ldu_priv);
527 dev_priv->ldu_priv = NULL;
528 return ret;
529}
530
531int vmw_kms_ldu_close_display(struct vmw_private *dev_priv)
532{
533 if (!dev_priv->ldu_priv)
534 return -ENOSYS;
535
536 BUG_ON(!list_empty(&dev_priv->ldu_priv->active));
537
538 kfree(dev_priv->ldu_priv);
539
540 return 0;
541}
542
543
544int vmw_kms_ldu_do_bo_dirty(struct vmw_private *dev_priv,
545 struct vmw_framebuffer *framebuffer,
546 unsigned int flags, unsigned int color,
547 struct drm_clip_rect *clips,
548 unsigned int num_clips, int increment)
549{
550 size_t fifo_size;
551 int i;
552
553 struct {
554 uint32_t header;
555 SVGAFifoCmdUpdate body;
556 } *cmd;
557
558 fifo_size = sizeof(*cmd) * num_clips;
559 cmd = VMW_FIFO_RESERVE(dev_priv, fifo_size);
560 if (unlikely(cmd == NULL))
561 return -ENOMEM;
562
563 memset(cmd, 0, fifo_size);
564 for (i = 0; i < num_clips; i++, clips += increment) {
565 cmd[i].header = SVGA_CMD_UPDATE;
566 cmd[i].body.x = clips->x1;
567 cmd[i].body.y = clips->y1;
568 cmd[i].body.width = clips->x2 - clips->x1;
569 cmd[i].body.height = clips->y2 - clips->y1;
570 }
571
572 vmw_fifo_commit(dev_priv, fifo_size);
573 return 0;
574}
1/**************************************************************************
2 *
3 * Copyright © 2009-2015 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#include "vmwgfx_kms.h"
29#include <drm/drm_plane_helper.h>
30
31
32#define vmw_crtc_to_ldu(x) \
33 container_of(x, struct vmw_legacy_display_unit, base.crtc)
34#define vmw_encoder_to_ldu(x) \
35 container_of(x, struct vmw_legacy_display_unit, base.encoder)
36#define vmw_connector_to_ldu(x) \
37 container_of(x, struct vmw_legacy_display_unit, base.connector)
38
39struct vmw_legacy_display {
40 struct list_head active;
41
42 unsigned num_active;
43 unsigned last_num_active;
44
45 struct vmw_framebuffer *fb;
46};
47
48/**
49 * Display unit using the legacy register interface.
50 */
51struct vmw_legacy_display_unit {
52 struct vmw_display_unit base;
53
54 struct list_head active;
55};
56
57static void vmw_ldu_destroy(struct vmw_legacy_display_unit *ldu)
58{
59 list_del_init(&ldu->active);
60 vmw_du_cleanup(&ldu->base);
61 kfree(ldu);
62}
63
64
65/*
66 * Legacy Display Unit CRTC functions
67 */
68
69static void vmw_ldu_crtc_destroy(struct drm_crtc *crtc)
70{
71 vmw_ldu_destroy(vmw_crtc_to_ldu(crtc));
72}
73
74static int vmw_ldu_commit_list(struct vmw_private *dev_priv)
75{
76 struct vmw_legacy_display *lds = dev_priv->ldu_priv;
77 struct vmw_legacy_display_unit *entry;
78 struct vmw_display_unit *du = NULL;
79 struct drm_framebuffer *fb = NULL;
80 struct drm_crtc *crtc = NULL;
81 int i = 0, ret;
82
83 /* If there is no display topology the host just assumes
84 * that the guest will set the same layout as the host.
85 */
86 if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) {
87 int w = 0, h = 0;
88 list_for_each_entry(entry, &lds->active, active) {
89 crtc = &entry->base.crtc;
90 w = max(w, crtc->x + crtc->mode.hdisplay);
91 h = max(h, crtc->y + crtc->mode.vdisplay);
92 i++;
93 }
94
95 if (crtc == NULL)
96 return 0;
97 fb = entry->base.crtc.primary->fb;
98
99 return vmw_kms_write_svga(dev_priv, w, h, fb->pitches[0],
100 fb->bits_per_pixel, fb->depth);
101 }
102
103 if (!list_empty(&lds->active)) {
104 entry = list_entry(lds->active.next, typeof(*entry), active);
105 fb = entry->base.crtc.primary->fb;
106
107 vmw_kms_write_svga(dev_priv, fb->width, fb->height, fb->pitches[0],
108 fb->bits_per_pixel, fb->depth);
109 }
110
111 /* Make sure we always show something. */
112 vmw_write(dev_priv, SVGA_REG_NUM_GUEST_DISPLAYS,
113 lds->num_active ? lds->num_active : 1);
114
115 i = 0;
116 list_for_each_entry(entry, &lds->active, active) {
117 crtc = &entry->base.crtc;
118
119 vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, i);
120 vmw_write(dev_priv, SVGA_REG_DISPLAY_IS_PRIMARY, !i);
121 vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_X, crtc->x);
122 vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_Y, crtc->y);
123 vmw_write(dev_priv, SVGA_REG_DISPLAY_WIDTH, crtc->mode.hdisplay);
124 vmw_write(dev_priv, SVGA_REG_DISPLAY_HEIGHT, crtc->mode.vdisplay);
125 vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
126
127 i++;
128 }
129
130 BUG_ON(i != lds->num_active);
131
132 lds->last_num_active = lds->num_active;
133
134
135 /* Find the first du with a cursor. */
136 list_for_each_entry(entry, &lds->active, active) {
137 du = &entry->base;
138
139 if (!du->cursor_dmabuf)
140 continue;
141
142 ret = vmw_cursor_update_dmabuf(dev_priv,
143 du->cursor_dmabuf,
144 64, 64,
145 du->hotspot_x,
146 du->hotspot_y);
147 if (ret == 0)
148 break;
149
150 DRM_ERROR("Could not update cursor image\n");
151 }
152
153 return 0;
154}
155
156static int vmw_ldu_del_active(struct vmw_private *vmw_priv,
157 struct vmw_legacy_display_unit *ldu)
158{
159 struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
160 if (list_empty(&ldu->active))
161 return 0;
162
163 /* Must init otherwise list_empty(&ldu->active) will not work. */
164 list_del_init(&ldu->active);
165 if (--(ld->num_active) == 0) {
166 BUG_ON(!ld->fb);
167 if (ld->fb->unpin)
168 ld->fb->unpin(ld->fb);
169 ld->fb = NULL;
170 }
171
172 return 0;
173}
174
175static int vmw_ldu_add_active(struct vmw_private *vmw_priv,
176 struct vmw_legacy_display_unit *ldu,
177 struct vmw_framebuffer *vfb)
178{
179 struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
180 struct vmw_legacy_display_unit *entry;
181 struct list_head *at;
182
183 BUG_ON(!ld->num_active && ld->fb);
184 if (vfb != ld->fb) {
185 if (ld->fb && ld->fb->unpin)
186 ld->fb->unpin(ld->fb);
187 if (vfb->pin)
188 vfb->pin(vfb);
189 ld->fb = vfb;
190 }
191
192 if (!list_empty(&ldu->active))
193 return 0;
194
195 at = &ld->active;
196 list_for_each_entry(entry, &ld->active, active) {
197 if (entry->base.unit > ldu->base.unit)
198 break;
199
200 at = &entry->active;
201 }
202
203 list_add(&ldu->active, at);
204
205 ld->num_active++;
206
207 return 0;
208}
209
210static int vmw_ldu_crtc_set_config(struct drm_mode_set *set)
211{
212 struct vmw_private *dev_priv;
213 struct vmw_legacy_display_unit *ldu;
214 struct drm_connector *connector;
215 struct drm_display_mode *mode;
216 struct drm_encoder *encoder;
217 struct vmw_framebuffer *vfb;
218 struct drm_framebuffer *fb;
219 struct drm_crtc *crtc;
220
221 if (!set)
222 return -EINVAL;
223
224 if (!set->crtc)
225 return -EINVAL;
226
227 /* get the ldu */
228 crtc = set->crtc;
229 ldu = vmw_crtc_to_ldu(crtc);
230 vfb = set->fb ? vmw_framebuffer_to_vfb(set->fb) : NULL;
231 dev_priv = vmw_priv(crtc->dev);
232
233 if (set->num_connectors > 1) {
234 DRM_ERROR("to many connectors\n");
235 return -EINVAL;
236 }
237
238 if (set->num_connectors == 1 &&
239 set->connectors[0] != &ldu->base.connector) {
240 DRM_ERROR("connector doesn't match %p %p\n",
241 set->connectors[0], &ldu->base.connector);
242 return -EINVAL;
243 }
244
245 /* ldu only supports one fb active at the time */
246 if (dev_priv->ldu_priv->fb && vfb &&
247 !(dev_priv->ldu_priv->num_active == 1 &&
248 !list_empty(&ldu->active)) &&
249 dev_priv->ldu_priv->fb != vfb) {
250 DRM_ERROR("Multiple framebuffers not supported\n");
251 return -EINVAL;
252 }
253
254 /* since they always map one to one these are safe */
255 connector = &ldu->base.connector;
256 encoder = &ldu->base.encoder;
257
258 /* should we turn the crtc off? */
259 if (set->num_connectors == 0 || !set->mode || !set->fb) {
260
261 connector->encoder = NULL;
262 encoder->crtc = NULL;
263 crtc->primary->fb = NULL;
264 crtc->enabled = false;
265
266 vmw_ldu_del_active(dev_priv, ldu);
267
268 return vmw_ldu_commit_list(dev_priv);
269 }
270
271
272 /* we now know we want to set a mode */
273 mode = set->mode;
274 fb = set->fb;
275
276 if (set->x + mode->hdisplay > fb->width ||
277 set->y + mode->vdisplay > fb->height) {
278 DRM_ERROR("set outside of framebuffer\n");
279 return -EINVAL;
280 }
281
282 vmw_svga_enable(dev_priv);
283
284 crtc->primary->fb = fb;
285 encoder->crtc = crtc;
286 connector->encoder = encoder;
287 crtc->x = set->x;
288 crtc->y = set->y;
289 crtc->mode = *mode;
290 crtc->enabled = true;
291 ldu->base.set_gui_x = set->x;
292 ldu->base.set_gui_y = set->y;
293
294 vmw_ldu_add_active(dev_priv, ldu, vfb);
295
296 return vmw_ldu_commit_list(dev_priv);
297}
298
299static const struct drm_crtc_funcs vmw_legacy_crtc_funcs = {
300 .cursor_set2 = vmw_du_crtc_cursor_set2,
301 .cursor_move = vmw_du_crtc_cursor_move,
302 .gamma_set = vmw_du_crtc_gamma_set,
303 .destroy = vmw_ldu_crtc_destroy,
304 .set_config = vmw_ldu_crtc_set_config,
305};
306
307
308/*
309 * Legacy Display Unit encoder functions
310 */
311
312static void vmw_ldu_encoder_destroy(struct drm_encoder *encoder)
313{
314 vmw_ldu_destroy(vmw_encoder_to_ldu(encoder));
315}
316
317static const struct drm_encoder_funcs vmw_legacy_encoder_funcs = {
318 .destroy = vmw_ldu_encoder_destroy,
319};
320
321/*
322 * Legacy Display Unit connector functions
323 */
324
325static void vmw_ldu_connector_destroy(struct drm_connector *connector)
326{
327 vmw_ldu_destroy(vmw_connector_to_ldu(connector));
328}
329
330static const struct drm_connector_funcs vmw_legacy_connector_funcs = {
331 .dpms = vmw_du_connector_dpms,
332 .detect = vmw_du_connector_detect,
333 .fill_modes = vmw_du_connector_fill_modes,
334 .set_property = vmw_du_connector_set_property,
335 .destroy = vmw_ldu_connector_destroy,
336};
337
338static int vmw_ldu_init(struct vmw_private *dev_priv, unsigned unit)
339{
340 struct vmw_legacy_display_unit *ldu;
341 struct drm_device *dev = dev_priv->dev;
342 struct drm_connector *connector;
343 struct drm_encoder *encoder;
344 struct drm_crtc *crtc;
345
346 ldu = kzalloc(sizeof(*ldu), GFP_KERNEL);
347 if (!ldu)
348 return -ENOMEM;
349
350 ldu->base.unit = unit;
351 crtc = &ldu->base.crtc;
352 encoder = &ldu->base.encoder;
353 connector = &ldu->base.connector;
354
355 INIT_LIST_HEAD(&ldu->active);
356
357 ldu->base.pref_active = (unit == 0);
358 ldu->base.pref_width = dev_priv->initial_width;
359 ldu->base.pref_height = dev_priv->initial_height;
360 ldu->base.pref_mode = NULL;
361 ldu->base.is_implicit = true;
362
363 drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
364 DRM_MODE_CONNECTOR_VIRTUAL);
365 connector->status = vmw_du_connector_detect(connector, true);
366
367 drm_encoder_init(dev, encoder, &vmw_legacy_encoder_funcs,
368 DRM_MODE_ENCODER_VIRTUAL, NULL);
369 drm_mode_connector_attach_encoder(connector, encoder);
370 encoder->possible_crtcs = (1 << unit);
371 encoder->possible_clones = 0;
372
373 (void) drm_connector_register(connector);
374
375 drm_crtc_init(dev, crtc, &vmw_legacy_crtc_funcs);
376
377 drm_mode_crtc_set_gamma_size(crtc, 256);
378
379 drm_object_attach_property(&connector->base,
380 dev_priv->hotplug_mode_update_property, 1);
381 drm_object_attach_property(&connector->base,
382 dev->mode_config.suggested_x_property, 0);
383 drm_object_attach_property(&connector->base,
384 dev->mode_config.suggested_y_property, 0);
385 if (dev_priv->implicit_placement_property)
386 drm_object_attach_property
387 (&connector->base,
388 dev_priv->implicit_placement_property,
389 1);
390
391 return 0;
392}
393
394int vmw_kms_ldu_init_display(struct vmw_private *dev_priv)
395{
396 struct drm_device *dev = dev_priv->dev;
397 int i, ret;
398
399 if (dev_priv->ldu_priv) {
400 DRM_INFO("ldu system already on\n");
401 return -EINVAL;
402 }
403
404 dev_priv->ldu_priv = kmalloc(sizeof(*dev_priv->ldu_priv), GFP_KERNEL);
405 if (!dev_priv->ldu_priv)
406 return -ENOMEM;
407
408 INIT_LIST_HEAD(&dev_priv->ldu_priv->active);
409 dev_priv->ldu_priv->num_active = 0;
410 dev_priv->ldu_priv->last_num_active = 0;
411 dev_priv->ldu_priv->fb = NULL;
412
413 /* for old hardware without multimon only enable one display */
414 if (dev_priv->capabilities & SVGA_CAP_MULTIMON)
415 ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS);
416 else
417 ret = drm_vblank_init(dev, 1);
418 if (ret != 0)
419 goto err_free;
420
421 vmw_kms_create_implicit_placement_property(dev_priv, true);
422
423 if (dev_priv->capabilities & SVGA_CAP_MULTIMON)
424 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
425 vmw_ldu_init(dev_priv, i);
426 else
427 vmw_ldu_init(dev_priv, 0);
428
429 dev_priv->active_display_unit = vmw_du_legacy;
430
431 DRM_INFO("Legacy Display Unit initialized\n");
432
433 return 0;
434
435err_free:
436 kfree(dev_priv->ldu_priv);
437 dev_priv->ldu_priv = NULL;
438 return ret;
439}
440
441int vmw_kms_ldu_close_display(struct vmw_private *dev_priv)
442{
443 struct drm_device *dev = dev_priv->dev;
444
445 if (!dev_priv->ldu_priv)
446 return -ENOSYS;
447
448 drm_vblank_cleanup(dev);
449
450 BUG_ON(!list_empty(&dev_priv->ldu_priv->active));
451
452 kfree(dev_priv->ldu_priv);
453
454 return 0;
455}
456
457
458int vmw_kms_ldu_do_dmabuf_dirty(struct vmw_private *dev_priv,
459 struct vmw_framebuffer *framebuffer,
460 unsigned flags, unsigned color,
461 struct drm_clip_rect *clips,
462 unsigned num_clips, int increment)
463{
464 size_t fifo_size;
465 int i;
466
467 struct {
468 uint32_t header;
469 SVGAFifoCmdUpdate body;
470 } *cmd;
471
472 fifo_size = sizeof(*cmd) * num_clips;
473 cmd = vmw_fifo_reserve(dev_priv, fifo_size);
474 if (unlikely(cmd == NULL)) {
475 DRM_ERROR("Fifo reserve failed.\n");
476 return -ENOMEM;
477 }
478
479 memset(cmd, 0, fifo_size);
480 for (i = 0; i < num_clips; i++, clips += increment) {
481 cmd[i].header = SVGA_CMD_UPDATE;
482 cmd[i].body.x = clips->x1;
483 cmd[i].body.y = clips->y1;
484 cmd[i].body.width = clips->x2 - clips->x1;
485 cmd[i].body.height = clips->y2 - clips->y1;
486 }
487
488 vmw_fifo_commit(dev_priv, fifo_size);
489 return 0;
490}