1 // SPDX-License-Identifier: GPL-2.0 OR MIT
2 /**************************************************************************
4 * Copyright 2009-2015 VMware, Inc., Palo Alto, CA., USA
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #include "vmwgfx_kms.h"
29 #include <drm/drm_plane_helper.h>
30 #include <drm/drm_atomic.h>
31 #include <drm/drm_atomic_helper.h>
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)
41 struct vmw_legacy_display
{
42 struct list_head active
;
45 unsigned last_num_active
;
47 struct vmw_framebuffer
*fb
;
51 * Display unit using the legacy register interface.
53 struct vmw_legacy_display_unit
{
54 struct vmw_display_unit base
;
56 struct list_head active
;
59 static void vmw_ldu_destroy(struct vmw_legacy_display_unit
*ldu
)
61 list_del_init(&ldu
->active
);
62 vmw_du_cleanup(&ldu
->base
);
68 * Legacy Display Unit CRTC functions
71 static void vmw_ldu_crtc_destroy(struct drm_crtc
*crtc
)
73 vmw_ldu_destroy(vmw_crtc_to_ldu(crtc
));
76 static int vmw_ldu_commit_list(struct vmw_private
*dev_priv
)
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
;
84 /* If there is no display topology the host just assumes
85 * that the guest will set the same layout as the host.
87 if (!(dev_priv
->capabilities
& SVGA_CAP_DISPLAY_TOPOLOGY
)) {
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
);
98 fb
= entry
->base
.crtc
.primary
->state
->fb
;
100 return vmw_kms_write_svga(dev_priv
, w
, h
, fb
->pitches
[0],
101 fb
->format
->cpp
[0] * 8,
105 if (!list_empty(&lds
->active
)) {
106 entry
= list_entry(lds
->active
.next
, typeof(*entry
), active
);
107 fb
= entry
->base
.crtc
.primary
->state
->fb
;
109 vmw_kms_write_svga(dev_priv
, fb
->width
, fb
->height
, fb
->pitches
[0],
110 fb
->format
->cpp
[0] * 8, fb
->format
->depth
);
113 /* Make sure we always show something. */
114 vmw_write(dev_priv
, SVGA_REG_NUM_GUEST_DISPLAYS
,
115 lds
->num_active
? lds
->num_active
: 1);
118 list_for_each_entry(entry
, &lds
->active
, active
) {
119 crtc
= &entry
->base
.crtc
;
121 vmw_write(dev_priv
, SVGA_REG_DISPLAY_ID
, i
);
122 vmw_write(dev_priv
, SVGA_REG_DISPLAY_IS_PRIMARY
, !i
);
123 vmw_write(dev_priv
, SVGA_REG_DISPLAY_POSITION_X
, crtc
->x
);
124 vmw_write(dev_priv
, SVGA_REG_DISPLAY_POSITION_Y
, crtc
->y
);
125 vmw_write(dev_priv
, SVGA_REG_DISPLAY_WIDTH
, crtc
->mode
.hdisplay
);
126 vmw_write(dev_priv
, SVGA_REG_DISPLAY_HEIGHT
, crtc
->mode
.vdisplay
);
127 vmw_write(dev_priv
, SVGA_REG_DISPLAY_ID
, SVGA_ID_INVALID
);
132 BUG_ON(i
!= lds
->num_active
);
134 lds
->last_num_active
= lds
->num_active
;
139 static int vmw_ldu_del_active(struct vmw_private
*vmw_priv
,
140 struct vmw_legacy_display_unit
*ldu
)
142 struct vmw_legacy_display
*ld
= vmw_priv
->ldu_priv
;
143 if (list_empty(&ldu
->active
))
146 /* Must init otherwise list_empty(&ldu->active) will not work. */
147 list_del_init(&ldu
->active
);
148 if (--(ld
->num_active
) == 0) {
151 ld
->fb
->unpin(ld
->fb
);
158 static int vmw_ldu_add_active(struct vmw_private
*vmw_priv
,
159 struct vmw_legacy_display_unit
*ldu
,
160 struct vmw_framebuffer
*vfb
)
162 struct vmw_legacy_display
*ld
= vmw_priv
->ldu_priv
;
163 struct vmw_legacy_display_unit
*entry
;
164 struct list_head
*at
;
166 BUG_ON(!ld
->num_active
&& ld
->fb
);
168 if (ld
->fb
&& ld
->fb
->unpin
)
169 ld
->fb
->unpin(ld
->fb
);
170 vmw_svga_enable(vmw_priv
);
176 if (!list_empty(&ldu
->active
))
180 list_for_each_entry(entry
, &ld
->active
, active
) {
181 if (entry
->base
.unit
> ldu
->base
.unit
)
187 list_add(&ldu
->active
, at
);
195 * vmw_ldu_crtc_mode_set_nofb - Enable svga
197 * @crtc: CRTC associated with the new screen
199 * For LDU, just enable the svga
201 static void vmw_ldu_crtc_mode_set_nofb(struct drm_crtc
*crtc
)
206 * vmw_ldu_crtc_atomic_enable - Noop
208 * @crtc: CRTC associated with the new screen
210 * This is called after a mode set has been completed. Here's
211 * usually a good place to call vmw_ldu_add_active/vmw_ldu_del_active
212 * but since for LDU the display plane is closely tied to the
213 * CRTC, it makes more sense to do those at plane update time.
215 static void vmw_ldu_crtc_atomic_enable(struct drm_crtc
*crtc
,
216 struct drm_crtc_state
*old_state
)
221 * vmw_ldu_crtc_atomic_disable - Turns off CRTC
223 * @crtc: CRTC to be turned off
225 static void vmw_ldu_crtc_atomic_disable(struct drm_crtc
*crtc
,
226 struct drm_crtc_state
*old_state
)
230 static 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
,
241 * Legacy Display Unit encoder functions
244 static void vmw_ldu_encoder_destroy(struct drm_encoder
*encoder
)
246 vmw_ldu_destroy(vmw_encoder_to_ldu(encoder
));
249 static const struct drm_encoder_funcs vmw_legacy_encoder_funcs
= {
250 .destroy
= vmw_ldu_encoder_destroy
,
254 * Legacy Display Unit connector functions
257 static void vmw_ldu_connector_destroy(struct drm_connector
*connector
)
259 vmw_ldu_destroy(vmw_connector_to_ldu(connector
));
262 static 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
,
273 drm_connector_helper_funcs vmw_ldu_connector_helper_funcs
= {
277 * Legacy Display Plane Functions
281 vmw_ldu_primary_plane_atomic_update(struct drm_plane
*plane
,
282 struct drm_plane_state
*old_state
)
284 struct vmw_private
*dev_priv
;
285 struct vmw_legacy_display_unit
*ldu
;
286 struct vmw_framebuffer
*vfb
;
287 struct drm_framebuffer
*fb
;
288 struct drm_crtc
*crtc
= plane
->state
->crtc
?: old_state
->crtc
;
291 ldu
= vmw_crtc_to_ldu(crtc
);
292 dev_priv
= vmw_priv(plane
->dev
);
293 fb
= plane
->state
->fb
;
295 vfb
= (fb
) ? vmw_framebuffer_to_vfb(fb
) : NULL
;
298 vmw_ldu_add_active(dev_priv
, ldu
, vfb
);
300 vmw_ldu_del_active(dev_priv
, ldu
);
302 vmw_ldu_commit_list(dev_priv
);
306 static const struct drm_plane_funcs vmw_ldu_plane_funcs
= {
307 .update_plane
= drm_atomic_helper_update_plane
,
308 .disable_plane
= drm_atomic_helper_disable_plane
,
309 .destroy
= vmw_du_primary_plane_destroy
,
310 .reset
= vmw_du_plane_reset
,
311 .atomic_duplicate_state
= vmw_du_plane_duplicate_state
,
312 .atomic_destroy_state
= vmw_du_plane_destroy_state
,
315 static const struct drm_plane_funcs vmw_ldu_cursor_funcs
= {
316 .update_plane
= drm_atomic_helper_update_plane
,
317 .disable_plane
= drm_atomic_helper_disable_plane
,
318 .destroy
= vmw_du_cursor_plane_destroy
,
319 .reset
= vmw_du_plane_reset
,
320 .atomic_duplicate_state
= vmw_du_plane_duplicate_state
,
321 .atomic_destroy_state
= vmw_du_plane_destroy_state
,
328 drm_plane_helper_funcs vmw_ldu_cursor_plane_helper_funcs
= {
329 .atomic_check
= vmw_du_cursor_plane_atomic_check
,
330 .atomic_update
= vmw_du_cursor_plane_atomic_update
,
331 .prepare_fb
= vmw_du_cursor_plane_prepare_fb
,
332 .cleanup_fb
= vmw_du_plane_cleanup_fb
,
336 drm_plane_helper_funcs vmw_ldu_primary_plane_helper_funcs
= {
337 .atomic_check
= vmw_du_primary_plane_atomic_check
,
338 .atomic_update
= vmw_ldu_primary_plane_atomic_update
,
341 static const struct drm_crtc_helper_funcs vmw_ldu_crtc_helper_funcs
= {
342 .mode_set_nofb
= vmw_ldu_crtc_mode_set_nofb
,
343 .atomic_check
= vmw_du_crtc_atomic_check
,
344 .atomic_begin
= vmw_du_crtc_atomic_begin
,
345 .atomic_flush
= vmw_du_crtc_atomic_flush
,
346 .atomic_enable
= vmw_ldu_crtc_atomic_enable
,
347 .atomic_disable
= vmw_ldu_crtc_atomic_disable
,
351 static int vmw_ldu_init(struct vmw_private
*dev_priv
, unsigned unit
)
353 struct vmw_legacy_display_unit
*ldu
;
354 struct drm_device
*dev
= dev_priv
->dev
;
355 struct drm_connector
*connector
;
356 struct drm_encoder
*encoder
;
357 struct drm_plane
*primary
, *cursor
;
358 struct drm_crtc
*crtc
;
361 ldu
= kzalloc(sizeof(*ldu
), GFP_KERNEL
);
365 ldu
->base
.unit
= unit
;
366 crtc
= &ldu
->base
.crtc
;
367 encoder
= &ldu
->base
.encoder
;
368 connector
= &ldu
->base
.connector
;
369 primary
= &ldu
->base
.primary
;
370 cursor
= &ldu
->base
.cursor
;
372 INIT_LIST_HEAD(&ldu
->active
);
374 ldu
->base
.pref_active
= (unit
== 0);
375 ldu
->base
.pref_width
= dev_priv
->initial_width
;
376 ldu
->base
.pref_height
= dev_priv
->initial_height
;
377 ldu
->base
.pref_mode
= NULL
;
380 * Remove this after enabling atomic because property values can
381 * only exist in a state object
383 ldu
->base
.is_implicit
= true;
385 /* Initialize primary plane */
386 vmw_du_plane_reset(primary
);
388 ret
= drm_universal_plane_init(dev
, &ldu
->base
.primary
,
389 0, &vmw_ldu_plane_funcs
,
390 vmw_primary_plane_formats
,
391 ARRAY_SIZE(vmw_primary_plane_formats
),
392 NULL
, DRM_PLANE_TYPE_PRIMARY
, NULL
);
394 DRM_ERROR("Failed to initialize primary plane");
398 drm_plane_helper_add(primary
, &vmw_ldu_primary_plane_helper_funcs
);
400 /* Initialize cursor plane */
401 vmw_du_plane_reset(cursor
);
403 ret
= drm_universal_plane_init(dev
, &ldu
->base
.cursor
,
404 0, &vmw_ldu_cursor_funcs
,
405 vmw_cursor_plane_formats
,
406 ARRAY_SIZE(vmw_cursor_plane_formats
),
407 NULL
, DRM_PLANE_TYPE_CURSOR
, NULL
);
409 DRM_ERROR("Failed to initialize cursor plane");
410 drm_plane_cleanup(&ldu
->base
.primary
);
414 drm_plane_helper_add(cursor
, &vmw_ldu_cursor_plane_helper_funcs
);
416 vmw_du_connector_reset(connector
);
417 ret
= drm_connector_init(dev
, connector
, &vmw_legacy_connector_funcs
,
418 DRM_MODE_CONNECTOR_VIRTUAL
);
420 DRM_ERROR("Failed to initialize connector\n");
424 drm_connector_helper_add(connector
, &vmw_ldu_connector_helper_funcs
);
425 connector
->status
= vmw_du_connector_detect(connector
, true);
427 ret
= drm_encoder_init(dev
, encoder
, &vmw_legacy_encoder_funcs
,
428 DRM_MODE_ENCODER_VIRTUAL
, NULL
);
430 DRM_ERROR("Failed to initialize encoder\n");
431 goto err_free_connector
;
434 (void) drm_connector_attach_encoder(connector
, encoder
);
435 encoder
->possible_crtcs
= (1 << unit
);
436 encoder
->possible_clones
= 0;
438 ret
= drm_connector_register(connector
);
440 DRM_ERROR("Failed to register connector\n");
441 goto err_free_encoder
;
444 vmw_du_crtc_reset(crtc
);
445 ret
= drm_crtc_init_with_planes(dev
, crtc
, &ldu
->base
.primary
,
447 &vmw_legacy_crtc_funcs
, NULL
);
449 DRM_ERROR("Failed to initialize CRTC\n");
450 goto err_free_unregister
;
453 drm_crtc_helper_add(crtc
, &vmw_ldu_crtc_helper_funcs
);
455 drm_mode_crtc_set_gamma_size(crtc
, 256);
457 drm_object_attach_property(&connector
->base
,
458 dev_priv
->hotplug_mode_update_property
, 1);
459 drm_object_attach_property(&connector
->base
,
460 dev
->mode_config
.suggested_x_property
, 0);
461 drm_object_attach_property(&connector
->base
,
462 dev
->mode_config
.suggested_y_property
, 0);
463 if (dev_priv
->implicit_placement_property
)
464 drm_object_attach_property
466 dev_priv
->implicit_placement_property
,
472 drm_connector_unregister(connector
);
474 drm_encoder_cleanup(encoder
);
476 drm_connector_cleanup(connector
);
482 int vmw_kms_ldu_init_display(struct vmw_private
*dev_priv
)
484 struct drm_device
*dev
= dev_priv
->dev
;
487 if (dev_priv
->ldu_priv
) {
488 DRM_INFO("ldu system already on\n");
492 dev_priv
->ldu_priv
= kmalloc(sizeof(*dev_priv
->ldu_priv
), GFP_KERNEL
);
493 if (!dev_priv
->ldu_priv
)
496 INIT_LIST_HEAD(&dev_priv
->ldu_priv
->active
);
497 dev_priv
->ldu_priv
->num_active
= 0;
498 dev_priv
->ldu_priv
->last_num_active
= 0;
499 dev_priv
->ldu_priv
->fb
= NULL
;
501 /* for old hardware without multimon only enable one display */
502 if (dev_priv
->capabilities
& SVGA_CAP_MULTIMON
)
503 ret
= drm_vblank_init(dev
, VMWGFX_NUM_DISPLAY_UNITS
);
505 ret
= drm_vblank_init(dev
, 1);
509 vmw_kms_create_implicit_placement_property(dev_priv
);
511 if (dev_priv
->capabilities
& SVGA_CAP_MULTIMON
)
512 for (i
= 0; i
< VMWGFX_NUM_DISPLAY_UNITS
; ++i
)
513 vmw_ldu_init(dev_priv
, i
);
515 vmw_ldu_init(dev_priv
, 0);
517 dev_priv
->active_display_unit
= vmw_du_legacy
;
519 DRM_INFO("Legacy Display Unit initialized\n");
524 kfree(dev_priv
->ldu_priv
);
525 dev_priv
->ldu_priv
= NULL
;
529 int vmw_kms_ldu_close_display(struct vmw_private
*dev_priv
)
531 if (!dev_priv
->ldu_priv
)
534 BUG_ON(!list_empty(&dev_priv
->ldu_priv
->active
));
536 kfree(dev_priv
->ldu_priv
);
542 int vmw_kms_ldu_do_bo_dirty(struct vmw_private
*dev_priv
,
543 struct vmw_framebuffer
*framebuffer
,
544 unsigned int flags
, unsigned int color
,
545 struct drm_clip_rect
*clips
,
546 unsigned int num_clips
, int increment
)
553 SVGAFifoCmdUpdate body
;
556 fifo_size
= sizeof(*cmd
) * num_clips
;
557 cmd
= VMW_FIFO_RESERVE(dev_priv
, fifo_size
);
558 if (unlikely(cmd
== NULL
))
561 memset(cmd
, 0, fifo_size
);
562 for (i
= 0; i
< num_clips
; i
++, clips
+= increment
) {
563 cmd
[i
].header
= SVGA_CMD_UPDATE
;
564 cmd
[i
].body
.x
= clips
->x1
;
565 cmd
[i
].body
.y
= clips
->y1
;
566 cmd
[i
].body
.width
= clips
->x2
- clips
->x1
;
567 cmd
[i
].body
.height
= clips
->y2
- clips
->y1
;
570 vmw_fifo_commit(dev_priv
, fifo_size
);