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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// SPDX-License-Identifier: GPL-2.0 OR MIT
2/**************************************************************************
3 *
4 * Copyright 2009-2022 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
32#include "vmwgfx_kms.h"
33
34#define vmw_crtc_to_ldu(x) \
35 container_of(x, struct vmw_legacy_display_unit, base.crtc)
36#define vmw_encoder_to_ldu(x) \
37 container_of(x, struct vmw_legacy_display_unit, base.encoder)
38#define vmw_connector_to_ldu(x) \
39 container_of(x, struct vmw_legacy_display_unit, base.connector)
40
41struct vmw_legacy_display {
42 struct list_head active;
43
44 unsigned num_active;
45 unsigned last_num_active;
46
47 struct vmw_framebuffer *fb;
48};
49
50/*
51 * Display unit using the legacy register interface.
52 */
53struct vmw_legacy_display_unit {
54 struct vmw_display_unit base;
55
56 struct list_head active;
57};
58
59static void vmw_ldu_destroy(struct vmw_legacy_display_unit *ldu)
60{
61 list_del_init(&ldu->active);
62 vmw_du_cleanup(&ldu->base);
63 kfree(ldu);
64}
65
66
67/*
68 * Legacy Display Unit CRTC functions
69 */
70
71static void vmw_ldu_crtc_destroy(struct drm_crtc *crtc)
72{
73 vmw_ldu_destroy(vmw_crtc_to_ldu(crtc));
74}
75
76static int vmw_ldu_commit_list(struct vmw_private *dev_priv)
77{
78 struct vmw_legacy_display *lds = dev_priv->ldu_priv;
79 struct vmw_legacy_display_unit *entry;
80 struct drm_framebuffer *fb = NULL;
81 struct drm_crtc *crtc = NULL;
82 int i;
83
84 /* If there is no display topology the host just assumes
85 * that the guest will set the same layout as the host.
86 */
87 if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) {
88 int w = 0, h = 0;
89 list_for_each_entry(entry, &lds->active, active) {
90 crtc = &entry->base.crtc;
91 w = max(w, crtc->x + crtc->mode.hdisplay);
92 h = max(h, crtc->y + crtc->mode.vdisplay);
93 }
94
95 if (crtc == NULL)
96 return 0;
97 fb = crtc->primary->state->fb;
98
99 return vmw_kms_write_svga(dev_priv, w, h, fb->pitches[0],
100 fb->format->cpp[0] * 8,
101 fb->format->depth);
102 }
103
104 if (!list_empty(&lds->active)) {
105 entry = list_entry(lds->active.next, typeof(*entry), active);
106 fb = entry->base.crtc.primary->state->fb;
107
108 vmw_kms_write_svga(dev_priv, fb->width, fb->height, fb->pitches[0],
109 fb->format->cpp[0] * 8, fb->format->depth);
110 }
111
112 /* Make sure we always show something. */
113 vmw_write(dev_priv, SVGA_REG_NUM_GUEST_DISPLAYS,
114 lds->num_active ? lds->num_active : 1);
115
116 i = 0;
117 list_for_each_entry(entry, &lds->active, active) {
118 crtc = &entry->base.crtc;
119
120 vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, i);
121 vmw_write(dev_priv, SVGA_REG_DISPLAY_IS_PRIMARY, !i);
122 vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_X, crtc->x);
123 vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_Y, crtc->y);
124 vmw_write(dev_priv, SVGA_REG_DISPLAY_WIDTH, crtc->mode.hdisplay);
125 vmw_write(dev_priv, SVGA_REG_DISPLAY_HEIGHT, crtc->mode.vdisplay);
126
127 i++;
128 }
129
130 BUG_ON(i != lds->num_active);
131
132 lds->last_num_active = lds->num_active;
133
134 return 0;
135}
136
137static int vmw_ldu_del_active(struct vmw_private *vmw_priv,
138 struct vmw_legacy_display_unit *ldu)
139{
140 struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
141 if (list_empty(&ldu->active))
142 return 0;
143
144 /* Must init otherwise list_empty(&ldu->active) will not work. */
145 list_del_init(&ldu->active);
146 if (--(ld->num_active) == 0) {
147 BUG_ON(!ld->fb);
148 if (ld->fb->unpin)
149 ld->fb->unpin(ld->fb);
150 ld->fb = NULL;
151 }
152
153 return 0;
154}
155
156static int vmw_ldu_add_active(struct vmw_private *vmw_priv,
157 struct vmw_legacy_display_unit *ldu,
158 struct vmw_framebuffer *vfb)
159{
160 struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
161 struct vmw_legacy_display_unit *entry;
162 struct list_head *at;
163
164 BUG_ON(!ld->num_active && ld->fb);
165 if (vfb != ld->fb) {
166 if (ld->fb && ld->fb->unpin)
167 ld->fb->unpin(ld->fb);
168 vmw_svga_enable(vmw_priv);
169 if (vfb->pin)
170 vfb->pin(vfb);
171 ld->fb = vfb;
172 }
173
174 if (!list_empty(&ldu->active))
175 return 0;
176
177 at = &ld->active;
178 list_for_each_entry(entry, &ld->active, active) {
179 if (entry->base.unit > ldu->base.unit)
180 break;
181
182 at = &entry->active;
183 }
184
185 list_add(&ldu->active, at);
186
187 ld->num_active++;
188
189 return 0;
190}
191
192/**
193 * vmw_ldu_crtc_mode_set_nofb - Enable svga
194 *
195 * @crtc: CRTC associated with the new screen
196 *
197 * For LDU, just enable the svga
198 */
199static void vmw_ldu_crtc_mode_set_nofb(struct drm_crtc *crtc)
200{
201}
202
203/**
204 * vmw_ldu_crtc_atomic_enable - Noop
205 *
206 * @crtc: CRTC associated with the new screen
207 * @state: Unused
208 *
209 * This is called after a mode set has been completed. Here's
210 * usually a good place to call vmw_ldu_add_active/vmw_ldu_del_active
211 * but since for LDU the display plane is closely tied to the
212 * CRTC, it makes more sense to do those at plane update time.
213 */
214static void vmw_ldu_crtc_atomic_enable(struct drm_crtc *crtc,
215 struct drm_atomic_state *state)
216{
217}
218
219/**
220 * vmw_ldu_crtc_atomic_disable - Turns off CRTC
221 *
222 * @crtc: CRTC to be turned off
223 * @state: Unused
224 */
225static void vmw_ldu_crtc_atomic_disable(struct drm_crtc *crtc,
226 struct drm_atomic_state *state)
227{
228}
229
230static const struct drm_crtc_funcs vmw_legacy_crtc_funcs = {
231 .gamma_set = vmw_du_crtc_gamma_set,
232 .destroy = vmw_ldu_crtc_destroy,
233 .reset = vmw_du_crtc_reset,
234 .atomic_duplicate_state = vmw_du_crtc_duplicate_state,
235 .atomic_destroy_state = vmw_du_crtc_destroy_state,
236 .set_config = drm_atomic_helper_set_config,
237};
238
239
240/*
241 * Legacy Display Unit encoder functions
242 */
243
244static void vmw_ldu_encoder_destroy(struct drm_encoder *encoder)
245{
246 vmw_ldu_destroy(vmw_encoder_to_ldu(encoder));
247}
248
249static const struct drm_encoder_funcs vmw_legacy_encoder_funcs = {
250 .destroy = vmw_ldu_encoder_destroy,
251};
252
253/*
254 * Legacy Display Unit connector functions
255 */
256
257static void vmw_ldu_connector_destroy(struct drm_connector *connector)
258{
259 vmw_ldu_destroy(vmw_connector_to_ldu(connector));
260}
261
262static const struct drm_connector_funcs vmw_legacy_connector_funcs = {
263 .dpms = vmw_du_connector_dpms,
264 .detect = vmw_du_connector_detect,
265 .fill_modes = vmw_du_connector_fill_modes,
266 .destroy = vmw_ldu_connector_destroy,
267 .reset = vmw_du_connector_reset,
268 .atomic_duplicate_state = vmw_du_connector_duplicate_state,
269 .atomic_destroy_state = vmw_du_connector_destroy_state,
270};
271
272static const struct
273drm_connector_helper_funcs vmw_ldu_connector_helper_funcs = {
274};
275
276/*
277 * Legacy Display Plane Functions
278 */
279
280static void
281vmw_ldu_primary_plane_atomic_update(struct drm_plane *plane,
282 struct drm_atomic_state *state)
283{
284 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
285 plane);
286 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
287 plane);
288 struct vmw_private *dev_priv;
289 struct vmw_legacy_display_unit *ldu;
290 struct vmw_framebuffer *vfb;
291 struct drm_framebuffer *fb;
292 struct drm_crtc *crtc = new_state->crtc ?: old_state->crtc;
293
294
295 ldu = vmw_crtc_to_ldu(crtc);
296 dev_priv = vmw_priv(plane->dev);
297 fb = new_state->fb;
298
299 vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL;
300
301 if (vfb)
302 vmw_ldu_add_active(dev_priv, ldu, vfb);
303 else
304 vmw_ldu_del_active(dev_priv, ldu);
305
306 vmw_ldu_commit_list(dev_priv);
307}
308
309
310static const struct drm_plane_funcs vmw_ldu_plane_funcs = {
311 .update_plane = drm_atomic_helper_update_plane,
312 .disable_plane = drm_atomic_helper_disable_plane,
313 .destroy = vmw_du_primary_plane_destroy,
314 .reset = vmw_du_plane_reset,
315 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
316 .atomic_destroy_state = vmw_du_plane_destroy_state,
317};
318
319static const struct drm_plane_funcs vmw_ldu_cursor_funcs = {
320 .update_plane = drm_atomic_helper_update_plane,
321 .disable_plane = drm_atomic_helper_disable_plane,
322 .destroy = vmw_du_cursor_plane_destroy,
323 .reset = vmw_du_plane_reset,
324 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
325 .atomic_destroy_state = vmw_du_plane_destroy_state,
326};
327
328/*
329 * Atomic Helpers
330 */
331static const struct
332drm_plane_helper_funcs vmw_ldu_cursor_plane_helper_funcs = {
333 .atomic_check = vmw_du_cursor_plane_atomic_check,
334 .atomic_update = vmw_du_cursor_plane_atomic_update,
335 .prepare_fb = vmw_du_cursor_plane_prepare_fb,
336 .cleanup_fb = vmw_du_cursor_plane_cleanup_fb,
337};
338
339static const struct
340drm_plane_helper_funcs vmw_ldu_primary_plane_helper_funcs = {
341 .atomic_check = vmw_du_primary_plane_atomic_check,
342 .atomic_update = vmw_ldu_primary_plane_atomic_update,
343};
344
345static const struct drm_crtc_helper_funcs vmw_ldu_crtc_helper_funcs = {
346 .mode_set_nofb = vmw_ldu_crtc_mode_set_nofb,
347 .atomic_check = vmw_du_crtc_atomic_check,
348 .atomic_begin = vmw_du_crtc_atomic_begin,
349 .atomic_flush = vmw_du_crtc_atomic_flush,
350 .atomic_enable = vmw_ldu_crtc_atomic_enable,
351 .atomic_disable = vmw_ldu_crtc_atomic_disable,
352};
353
354
355static int vmw_ldu_init(struct vmw_private *dev_priv, unsigned unit)
356{
357 struct vmw_legacy_display_unit *ldu;
358 struct drm_device *dev = &dev_priv->drm;
359 struct drm_connector *connector;
360 struct drm_encoder *encoder;
361 struct drm_plane *primary;
362 struct vmw_cursor_plane *cursor;
363 struct drm_crtc *crtc;
364 int ret;
365
366 ldu = kzalloc(sizeof(*ldu), GFP_KERNEL);
367 if (!ldu)
368 return -ENOMEM;
369
370 ldu->base.unit = unit;
371 crtc = &ldu->base.crtc;
372 encoder = &ldu->base.encoder;
373 connector = &ldu->base.connector;
374 primary = &ldu->base.primary;
375 cursor = &ldu->base.cursor;
376
377 INIT_LIST_HEAD(&ldu->active);
378
379 ldu->base.pref_active = (unit == 0);
380 ldu->base.pref_width = dev_priv->initial_width;
381 ldu->base.pref_height = dev_priv->initial_height;
382 ldu->base.pref_mode = NULL;
383
384 /*
385 * Remove this after enabling atomic because property values can
386 * only exist in a state object
387 */
388 ldu->base.is_implicit = true;
389
390 /* Initialize primary plane */
391 ret = drm_universal_plane_init(dev, primary,
392 0, &vmw_ldu_plane_funcs,
393 vmw_primary_plane_formats,
394 ARRAY_SIZE(vmw_primary_plane_formats),
395 NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
396 if (ret) {
397 DRM_ERROR("Failed to initialize primary plane");
398 goto err_free;
399 }
400
401 drm_plane_helper_add(primary, &vmw_ldu_primary_plane_helper_funcs);
402
403 /*
404 * We're going to be using traces and software cursors
405 */
406 if (vmw_cmd_supported(dev_priv)) {
407 /* Initialize cursor plane */
408 ret = drm_universal_plane_init(dev, &cursor->base,
409 0, &vmw_ldu_cursor_funcs,
410 vmw_cursor_plane_formats,
411 ARRAY_SIZE(vmw_cursor_plane_formats),
412 NULL, DRM_PLANE_TYPE_CURSOR, NULL);
413 if (ret) {
414 DRM_ERROR("Failed to initialize cursor plane");
415 drm_plane_cleanup(&ldu->base.primary);
416 goto err_free;
417 }
418
419 drm_plane_helper_add(&cursor->base, &vmw_ldu_cursor_plane_helper_funcs);
420 }
421
422 ret = drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
423 DRM_MODE_CONNECTOR_VIRTUAL);
424 if (ret) {
425 DRM_ERROR("Failed to initialize connector\n");
426 goto err_free;
427 }
428
429 drm_connector_helper_add(connector, &vmw_ldu_connector_helper_funcs);
430 connector->status = vmw_du_connector_detect(connector, true);
431
432 ret = drm_encoder_init(dev, encoder, &vmw_legacy_encoder_funcs,
433 DRM_MODE_ENCODER_VIRTUAL, NULL);
434 if (ret) {
435 DRM_ERROR("Failed to initialize encoder\n");
436 goto err_free_connector;
437 }
438
439 (void) drm_connector_attach_encoder(connector, encoder);
440 encoder->possible_crtcs = (1 << unit);
441 encoder->possible_clones = 0;
442
443 ret = drm_connector_register(connector);
444 if (ret) {
445 DRM_ERROR("Failed to register connector\n");
446 goto err_free_encoder;
447 }
448
449 ret = drm_crtc_init_with_planes(dev, crtc, primary,
450 vmw_cmd_supported(dev_priv) ? &cursor->base : NULL,
451 &vmw_legacy_crtc_funcs, NULL);
452 if (ret) {
453 DRM_ERROR("Failed to initialize CRTC\n");
454 goto err_free_unregister;
455 }
456
457 drm_crtc_helper_add(crtc, &vmw_ldu_crtc_helper_funcs);
458
459 drm_mode_crtc_set_gamma_size(crtc, 256);
460
461 drm_object_attach_property(&connector->base,
462 dev_priv->hotplug_mode_update_property, 1);
463 drm_object_attach_property(&connector->base,
464 dev->mode_config.suggested_x_property, 0);
465 drm_object_attach_property(&connector->base,
466 dev->mode_config.suggested_y_property, 0);
467 if (dev_priv->implicit_placement_property)
468 drm_object_attach_property
469 (&connector->base,
470 dev_priv->implicit_placement_property,
471 1);
472
473 return 0;
474
475err_free_unregister:
476 drm_connector_unregister(connector);
477err_free_encoder:
478 drm_encoder_cleanup(encoder);
479err_free_connector:
480 drm_connector_cleanup(connector);
481err_free:
482 kfree(ldu);
483 return ret;
484}
485
486int vmw_kms_ldu_init_display(struct vmw_private *dev_priv)
487{
488 struct drm_device *dev = &dev_priv->drm;
489 int i, ret;
490 int num_display_units = (dev_priv->capabilities & SVGA_CAP_MULTIMON) ?
491 VMWGFX_NUM_DISPLAY_UNITS : 1;
492
493 if (unlikely(dev_priv->ldu_priv)) {
494 return -EINVAL;
495 }
496
497 dev_priv->ldu_priv = kmalloc(sizeof(*dev_priv->ldu_priv), GFP_KERNEL);
498 if (!dev_priv->ldu_priv)
499 return -ENOMEM;
500
501 INIT_LIST_HEAD(&dev_priv->ldu_priv->active);
502 dev_priv->ldu_priv->num_active = 0;
503 dev_priv->ldu_priv->last_num_active = 0;
504 dev_priv->ldu_priv->fb = NULL;
505
506 vmw_kms_create_implicit_placement_property(dev_priv);
507
508 for (i = 0; i < num_display_units; ++i) {
509 ret = vmw_ldu_init(dev_priv, i);
510 if (ret != 0)
511 goto err_free;
512 }
513
514 dev_priv->active_display_unit = vmw_du_legacy;
515
516 drm_mode_config_reset(dev);
517
518 return 0;
519
520err_free:
521 kfree(dev_priv->ldu_priv);
522 dev_priv->ldu_priv = NULL;
523 return ret;
524}
525
526int vmw_kms_ldu_close_display(struct vmw_private *dev_priv)
527{
528 if (!dev_priv->ldu_priv)
529 return -ENOSYS;
530
531 BUG_ON(!list_empty(&dev_priv->ldu_priv->active));
532
533 kfree(dev_priv->ldu_priv);
534
535 return 0;
536}
537
538
539int vmw_kms_ldu_do_bo_dirty(struct vmw_private *dev_priv,
540 struct vmw_framebuffer *framebuffer,
541 unsigned int flags, unsigned int color,
542 struct drm_clip_rect *clips,
543 unsigned int num_clips, int increment)
544{
545 size_t fifo_size;
546 int i;
547
548 struct {
549 uint32_t header;
550 SVGAFifoCmdUpdate body;
551 } *cmd;
552
553 fifo_size = sizeof(*cmd) * num_clips;
554 cmd = VMW_CMD_RESERVE(dev_priv, fifo_size);
555 if (unlikely(cmd == NULL))
556 return -ENOMEM;
557
558 memset(cmd, 0, fifo_size);
559 for (i = 0; i < num_clips; i++, clips += increment) {
560 cmd[i].header = SVGA_CMD_UPDATE;
561 cmd[i].body.x = clips->x1;
562 cmd[i].body.y = clips->y1;
563 cmd[i].body.width = clips->x2 - clips->x1;
564 cmd[i].body.height = clips->y2 - clips->y1;
565 }
566
567 vmw_cmd_commit(dev_priv, fifo_size);
568 return 0;
569}