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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 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
30#define VMWGFX_LDU_NUM_DU 8
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 unsigned pref_width;
55 unsigned pref_height;
56 bool pref_active;
57 struct drm_display_mode *pref_mode;
58
59 struct list_head active;
60};
61
62static void vmw_ldu_destroy(struct vmw_legacy_display_unit *ldu)
63{
64 list_del_init(&ldu->active);
65 vmw_display_unit_cleanup(&ldu->base);
66 kfree(ldu);
67}
68
69
70/*
71 * Legacy Display Unit CRTC functions
72 */
73
74static void vmw_ldu_crtc_save(struct drm_crtc *crtc)
75{
76}
77
78static void vmw_ldu_crtc_restore(struct drm_crtc *crtc)
79{
80}
81
82static void vmw_ldu_crtc_gamma_set(struct drm_crtc *crtc,
83 u16 *r, u16 *g, u16 *b,
84 uint32_t start, uint32_t size)
85{
86}
87
88static void vmw_ldu_crtc_destroy(struct drm_crtc *crtc)
89{
90 vmw_ldu_destroy(vmw_crtc_to_ldu(crtc));
91}
92
93static int vmw_ldu_commit_list(struct vmw_private *dev_priv)
94{
95 struct vmw_legacy_display *lds = dev_priv->ldu_priv;
96 struct vmw_legacy_display_unit *entry;
97 struct drm_framebuffer *fb = NULL;
98 struct drm_crtc *crtc = NULL;
99 int i = 0;
100
101 /* If there is no display topology the host just assumes
102 * that the guest will set the same layout as the host.
103 */
104 if (!(dev_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY)) {
105 int w = 0, h = 0;
106 list_for_each_entry(entry, &lds->active, active) {
107 crtc = &entry->base.crtc;
108 w = max(w, crtc->x + crtc->mode.hdisplay);
109 h = max(h, crtc->y + crtc->mode.vdisplay);
110 i++;
111 }
112
113 if (crtc == NULL)
114 return 0;
115 fb = entry->base.crtc.fb;
116
117 vmw_kms_write_svga(dev_priv, w, h, fb->pitch,
118 fb->bits_per_pixel, fb->depth);
119
120 return 0;
121 }
122
123 if (!list_empty(&lds->active)) {
124 entry = list_entry(lds->active.next, typeof(*entry), active);
125 fb = entry->base.crtc.fb;
126
127 vmw_kms_write_svga(dev_priv, fb->width, fb->height, fb->pitch,
128 fb->bits_per_pixel, fb->depth);
129 }
130
131 /* Make sure we always show something. */
132 vmw_write(dev_priv, SVGA_REG_NUM_GUEST_DISPLAYS,
133 lds->num_active ? lds->num_active : 1);
134
135 i = 0;
136 list_for_each_entry(entry, &lds->active, active) {
137 crtc = &entry->base.crtc;
138
139 vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, i);
140 vmw_write(dev_priv, SVGA_REG_DISPLAY_IS_PRIMARY, !i);
141 vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_X, crtc->x);
142 vmw_write(dev_priv, SVGA_REG_DISPLAY_POSITION_Y, crtc->y);
143 vmw_write(dev_priv, SVGA_REG_DISPLAY_WIDTH, crtc->mode.hdisplay);
144 vmw_write(dev_priv, SVGA_REG_DISPLAY_HEIGHT, crtc->mode.vdisplay);
145 vmw_write(dev_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
146
147 i++;
148 }
149
150 BUG_ON(i != lds->num_active);
151
152 lds->last_num_active = lds->num_active;
153
154 return 0;
155}
156
157static int vmw_ldu_del_active(struct vmw_private *vmw_priv,
158 struct vmw_legacy_display_unit *ldu)
159{
160 struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
161 if (list_empty(&ldu->active))
162 return 0;
163
164 /* Must init otherwise list_empty(&ldu->active) will not work. */
165 list_del_init(&ldu->active);
166 if (--(ld->num_active) == 0) {
167 BUG_ON(!ld->fb);
168 if (ld->fb->unpin)
169 ld->fb->unpin(ld->fb);
170 ld->fb = NULL;
171 }
172
173 return 0;
174}
175
176static int vmw_ldu_add_active(struct vmw_private *vmw_priv,
177 struct vmw_legacy_display_unit *ldu,
178 struct vmw_framebuffer *vfb)
179{
180 struct vmw_legacy_display *ld = vmw_priv->ldu_priv;
181 struct vmw_legacy_display_unit *entry;
182 struct list_head *at;
183
184 BUG_ON(!ld->num_active && ld->fb);
185 if (vfb != ld->fb) {
186 if (ld->fb && ld->fb->unpin)
187 ld->fb->unpin(ld->fb);
188 if (vfb->pin)
189 vfb->pin(vfb);
190 ld->fb = vfb;
191 }
192
193 if (!list_empty(&ldu->active))
194 return 0;
195
196 at = &ld->active;
197 list_for_each_entry(entry, &ld->active, active) {
198 if (entry->base.unit > ldu->base.unit)
199 break;
200
201 at = &entry->active;
202 }
203
204 list_add(&ldu->active, at);
205
206 ld->num_active++;
207
208 return 0;
209}
210
211static int vmw_ldu_crtc_set_config(struct drm_mode_set *set)
212{
213 struct vmw_private *dev_priv;
214 struct vmw_legacy_display_unit *ldu;
215 struct drm_connector *connector;
216 struct drm_display_mode *mode;
217 struct drm_encoder *encoder;
218 struct vmw_framebuffer *vfb;
219 struct drm_framebuffer *fb;
220 struct drm_crtc *crtc;
221
222 if (!set)
223 return -EINVAL;
224
225 if (!set->crtc)
226 return -EINVAL;
227
228 /* get the ldu */
229 crtc = set->crtc;
230 ldu = vmw_crtc_to_ldu(crtc);
231 vfb = set->fb ? vmw_framebuffer_to_vfb(set->fb) : NULL;
232 dev_priv = vmw_priv(crtc->dev);
233
234 if (set->num_connectors > 1) {
235 DRM_ERROR("to many connectors\n");
236 return -EINVAL;
237 }
238
239 if (set->num_connectors == 1 &&
240 set->connectors[0] != &ldu->base.connector) {
241 DRM_ERROR("connector doesn't match %p %p\n",
242 set->connectors[0], &ldu->base.connector);
243 return -EINVAL;
244 }
245
246 /* ldu only supports one fb active at the time */
247 if (dev_priv->ldu_priv->fb && vfb &&
248 !(dev_priv->ldu_priv->num_active == 1 &&
249 !list_empty(&ldu->active)) &&
250 dev_priv->ldu_priv->fb != vfb) {
251 DRM_ERROR("Multiple framebuffers not supported\n");
252 return -EINVAL;
253 }
254
255 /* since they always map one to one these are safe */
256 connector = &ldu->base.connector;
257 encoder = &ldu->base.encoder;
258
259 /* should we turn the crtc off? */
260 if (set->num_connectors == 0 || !set->mode || !set->fb) {
261
262 connector->encoder = NULL;
263 encoder->crtc = NULL;
264 crtc->fb = NULL;
265
266 vmw_ldu_del_active(dev_priv, ldu);
267
268 vmw_ldu_commit_list(dev_priv);
269
270 return 0;
271 }
272
273
274 /* we now know we want to set a mode */
275 mode = set->mode;
276 fb = set->fb;
277
278 if (set->x + mode->hdisplay > fb->width ||
279 set->y + mode->vdisplay > fb->height) {
280 DRM_ERROR("set outside of framebuffer\n");
281 return -EINVAL;
282 }
283
284 vmw_fb_off(dev_priv);
285
286 crtc->fb = fb;
287 encoder->crtc = crtc;
288 connector->encoder = encoder;
289 crtc->x = set->x;
290 crtc->y = set->y;
291 crtc->mode = *mode;
292
293 vmw_ldu_add_active(dev_priv, ldu, vfb);
294
295 vmw_ldu_commit_list(dev_priv);
296
297 return 0;
298}
299
300static struct drm_crtc_funcs vmw_legacy_crtc_funcs = {
301 .save = vmw_ldu_crtc_save,
302 .restore = vmw_ldu_crtc_restore,
303 .cursor_set = vmw_du_crtc_cursor_set,
304 .cursor_move = vmw_du_crtc_cursor_move,
305 .gamma_set = vmw_ldu_crtc_gamma_set,
306 .destroy = vmw_ldu_crtc_destroy,
307 .set_config = vmw_ldu_crtc_set_config,
308};
309
310/*
311 * Legacy Display Unit encoder functions
312 */
313
314static void vmw_ldu_encoder_destroy(struct drm_encoder *encoder)
315{
316 vmw_ldu_destroy(vmw_encoder_to_ldu(encoder));
317}
318
319static struct drm_encoder_funcs vmw_legacy_encoder_funcs = {
320 .destroy = vmw_ldu_encoder_destroy,
321};
322
323/*
324 * Legacy Display Unit connector functions
325 */
326
327static void vmw_ldu_connector_dpms(struct drm_connector *connector, int mode)
328{
329}
330
331static void vmw_ldu_connector_save(struct drm_connector *connector)
332{
333}
334
335static void vmw_ldu_connector_restore(struct drm_connector *connector)
336{
337}
338
339static enum drm_connector_status
340 vmw_ldu_connector_detect(struct drm_connector *connector,
341 bool force)
342{
343 if (vmw_connector_to_ldu(connector)->pref_active)
344 return connector_status_connected;
345 return connector_status_disconnected;
346}
347
348static const struct drm_display_mode vmw_ldu_connector_builtin[] = {
349 /* 640x480@60Hz */
350 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
351 752, 800, 0, 480, 489, 492, 525, 0,
352 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
353 /* 800x600@60Hz */
354 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
355 968, 1056, 0, 600, 601, 605, 628, 0,
356 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
357 /* 1024x768@60Hz */
358 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
359 1184, 1344, 0, 768, 771, 777, 806, 0,
360 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
361 /* 1152x864@75Hz */
362 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
363 1344, 1600, 0, 864, 865, 868, 900, 0,
364 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
365 /* 1280x768@60Hz */
366 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
367 1472, 1664, 0, 768, 771, 778, 798, 0,
368 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
369 /* 1280x800@60Hz */
370 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
371 1480, 1680, 0, 800, 803, 809, 831, 0,
372 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
373 /* 1280x960@60Hz */
374 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
375 1488, 1800, 0, 960, 961, 964, 1000, 0,
376 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
377 /* 1280x1024@60Hz */
378 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
379 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
380 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
381 /* 1360x768@60Hz */
382 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
383 1536, 1792, 0, 768, 771, 777, 795, 0,
384 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
385 /* 1440x1050@60Hz */
386 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
387 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
388 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
389 /* 1440x900@60Hz */
390 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
391 1672, 1904, 0, 900, 903, 909, 934, 0,
392 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
393 /* 1600x1200@60Hz */
394 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
395 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
396 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
397 /* 1680x1050@60Hz */
398 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
399 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
400 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
401 /* 1792x1344@60Hz */
402 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
403 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
404 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
405 /* 1853x1392@60Hz */
406 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
407 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
408 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
409 /* 1920x1200@60Hz */
410 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
411 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
412 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
413 /* 1920x1440@60Hz */
414 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
415 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
416 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
417 /* 2560x1600@60Hz */
418 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
419 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
420 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
421 /* Terminate */
422 { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
423};
424
425static int vmw_ldu_connector_fill_modes(struct drm_connector *connector,
426 uint32_t max_width, uint32_t max_height)
427{
428 struct vmw_legacy_display_unit *ldu = vmw_connector_to_ldu(connector);
429 struct drm_device *dev = connector->dev;
430 struct vmw_private *dev_priv = vmw_priv(dev);
431 struct drm_display_mode *mode = NULL;
432 struct drm_display_mode prefmode = { DRM_MODE("preferred",
433 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
434 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
435 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
436 };
437 int i;
438
439 /* Add preferred mode */
440 {
441 mode = drm_mode_duplicate(dev, &prefmode);
442 if (!mode)
443 return 0;
444 mode->hdisplay = ldu->pref_width;
445 mode->vdisplay = ldu->pref_height;
446 mode->vrefresh = drm_mode_vrefresh(mode);
447 if (vmw_kms_validate_mode_vram(dev_priv, mode->hdisplay * 2,
448 mode->vdisplay)) {
449 drm_mode_probed_add(connector, mode);
450
451 if (ldu->pref_mode) {
452 list_del_init(&ldu->pref_mode->head);
453 drm_mode_destroy(dev, ldu->pref_mode);
454 }
455
456 ldu->pref_mode = mode;
457 }
458 }
459
460 for (i = 0; vmw_ldu_connector_builtin[i].type != 0; i++) {
461 const struct drm_display_mode *bmode;
462
463 bmode = &vmw_ldu_connector_builtin[i];
464 if (bmode->hdisplay > max_width ||
465 bmode->vdisplay > max_height)
466 continue;
467
468 if (!vmw_kms_validate_mode_vram(dev_priv, bmode->hdisplay * 2,
469 bmode->vdisplay))
470 continue;
471
472 mode = drm_mode_duplicate(dev, bmode);
473 if (!mode)
474 return 0;
475 mode->vrefresh = drm_mode_vrefresh(mode);
476
477 drm_mode_probed_add(connector, mode);
478 }
479
480 drm_mode_connector_list_update(connector);
481
482 return 1;
483}
484
485static int vmw_ldu_connector_set_property(struct drm_connector *connector,
486 struct drm_property *property,
487 uint64_t val)
488{
489 return 0;
490}
491
492static void vmw_ldu_connector_destroy(struct drm_connector *connector)
493{
494 vmw_ldu_destroy(vmw_connector_to_ldu(connector));
495}
496
497static struct drm_connector_funcs vmw_legacy_connector_funcs = {
498 .dpms = vmw_ldu_connector_dpms,
499 .save = vmw_ldu_connector_save,
500 .restore = vmw_ldu_connector_restore,
501 .detect = vmw_ldu_connector_detect,
502 .fill_modes = vmw_ldu_connector_fill_modes,
503 .set_property = vmw_ldu_connector_set_property,
504 .destroy = vmw_ldu_connector_destroy,
505};
506
507static int vmw_ldu_init(struct vmw_private *dev_priv, unsigned unit)
508{
509 struct vmw_legacy_display_unit *ldu;
510 struct drm_device *dev = dev_priv->dev;
511 struct drm_connector *connector;
512 struct drm_encoder *encoder;
513 struct drm_crtc *crtc;
514
515 ldu = kzalloc(sizeof(*ldu), GFP_KERNEL);
516 if (!ldu)
517 return -ENOMEM;
518
519 ldu->base.unit = unit;
520 crtc = &ldu->base.crtc;
521 encoder = &ldu->base.encoder;
522 connector = &ldu->base.connector;
523
524 INIT_LIST_HEAD(&ldu->active);
525
526 ldu->pref_active = (unit == 0);
527 ldu->pref_width = 800;
528 ldu->pref_height = 600;
529 ldu->pref_mode = NULL;
530
531 drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
532 DRM_MODE_CONNECTOR_LVDS);
533 connector->status = vmw_ldu_connector_detect(connector, true);
534
535 drm_encoder_init(dev, encoder, &vmw_legacy_encoder_funcs,
536 DRM_MODE_ENCODER_LVDS);
537 drm_mode_connector_attach_encoder(connector, encoder);
538 encoder->possible_crtcs = (1 << unit);
539 encoder->possible_clones = 0;
540
541 drm_crtc_init(dev, crtc, &vmw_legacy_crtc_funcs);
542
543 drm_connector_attach_property(connector,
544 dev->mode_config.dirty_info_property,
545 1);
546
547 return 0;
548}
549
550int vmw_kms_init_legacy_display_system(struct vmw_private *dev_priv)
551{
552 struct drm_device *dev = dev_priv->dev;
553 int i;
554 int ret;
555
556 if (dev_priv->ldu_priv) {
557 DRM_INFO("ldu system already on\n");
558 return -EINVAL;
559 }
560
561 dev_priv->ldu_priv = kmalloc(sizeof(*dev_priv->ldu_priv), GFP_KERNEL);
562
563 if (!dev_priv->ldu_priv)
564 return -ENOMEM;
565
566 INIT_LIST_HEAD(&dev_priv->ldu_priv->active);
567 dev_priv->ldu_priv->num_active = 0;
568 dev_priv->ldu_priv->last_num_active = 0;
569 dev_priv->ldu_priv->fb = NULL;
570
571 drm_mode_create_dirty_info_property(dev_priv->dev);
572
573 if (dev_priv->capabilities & SVGA_CAP_MULTIMON) {
574 for (i = 0; i < VMWGFX_LDU_NUM_DU; ++i)
575 vmw_ldu_init(dev_priv, i);
576 ret = drm_vblank_init(dev, VMWGFX_LDU_NUM_DU);
577 } else {
578 /* for old hardware without multimon only enable one display */
579 vmw_ldu_init(dev_priv, 0);
580 ret = drm_vblank_init(dev, 1);
581 }
582
583 return ret;
584}
585
586int vmw_kms_close_legacy_display_system(struct vmw_private *dev_priv)
587{
588 struct drm_device *dev = dev_priv->dev;
589
590 drm_vblank_cleanup(dev);
591 if (!dev_priv->ldu_priv)
592 return -ENOSYS;
593
594 BUG_ON(!list_empty(&dev_priv->ldu_priv->active));
595
596 kfree(dev_priv->ldu_priv);
597
598 return 0;
599}
600
601int vmw_kms_ldu_update_layout(struct vmw_private *dev_priv, unsigned num,
602 struct drm_vmw_rect *rects)
603{
604 struct drm_device *dev = dev_priv->dev;
605 struct vmw_legacy_display_unit *ldu;
606 struct drm_connector *con;
607 int i;
608
609 mutex_lock(&dev->mode_config.mutex);
610
611#if 0
612 DRM_INFO("%s: new layout ", __func__);
613 for (i = 0; i < (int)num; i++)
614 DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
615 rects[i].w, rects[i].h);
616 DRM_INFO("\n");
617#else
618 (void)i;
619#endif
620
621 list_for_each_entry(con, &dev->mode_config.connector_list, head) {
622 ldu = vmw_connector_to_ldu(con);
623 if (num > ldu->base.unit) {
624 ldu->pref_width = rects[ldu->base.unit].w;
625 ldu->pref_height = rects[ldu->base.unit].h;
626 ldu->pref_active = true;
627 } else {
628 ldu->pref_width = 800;
629 ldu->pref_height = 600;
630 ldu->pref_active = false;
631 }
632 con->status = vmw_ldu_connector_detect(con, true);
633 }
634
635 mutex_unlock(&dev->mode_config.mutex);
636
637 return 0;
638}