1 /**************************************************************************
3 * 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>
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)
39 struct vmw_legacy_display
{
40 struct list_head active
;
43 unsigned last_num_active
;
45 struct vmw_framebuffer
*fb
;
49 * Display unit using the legacy register interface.
51 struct vmw_legacy_display_unit
{
52 struct vmw_display_unit base
;
54 struct list_head active
;
57 static void vmw_ldu_destroy(struct vmw_legacy_display_unit
*ldu
)
59 list_del_init(&ldu
->active
);
60 vmw_du_cleanup(&ldu
->base
);
66 * Legacy Display Unit CRTC functions
69 static void vmw_ldu_crtc_destroy(struct drm_crtc
*crtc
)
71 vmw_ldu_destroy(vmw_crtc_to_ldu(crtc
));
74 static int vmw_ldu_commit_list(struct vmw_private
*dev_priv
)
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
;
83 /* If there is no display topology the host just assumes
84 * that the guest will set the same layout as the host.
86 if (!(dev_priv
->capabilities
& SVGA_CAP_DISPLAY_TOPOLOGY
)) {
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
);
97 fb
= entry
->base
.crtc
.primary
->fb
;
99 return vmw_kms_write_svga(dev_priv
, w
, h
, fb
->pitches
[0],
100 fb
->bits_per_pixel
, fb
->depth
);
103 if (!list_empty(&lds
->active
)) {
104 entry
= list_entry(lds
->active
.next
, typeof(*entry
), active
);
105 fb
= entry
->base
.crtc
.primary
->fb
;
107 vmw_kms_write_svga(dev_priv
, fb
->width
, fb
->height
, fb
->pitches
[0],
108 fb
->bits_per_pixel
, fb
->depth
);
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);
116 list_for_each_entry(entry
, &lds
->active
, active
) {
117 crtc
= &entry
->base
.crtc
;
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
);
130 BUG_ON(i
!= lds
->num_active
);
132 lds
->last_num_active
= lds
->num_active
;
135 /* Find the first du with a cursor. */
136 list_for_each_entry(entry
, &lds
->active
, active
) {
139 if (!du
->cursor_dmabuf
)
142 ret
= vmw_cursor_update_dmabuf(dev_priv
,
150 DRM_ERROR("Could not update cursor image\n");
156 static int vmw_ldu_del_active(struct vmw_private
*vmw_priv
,
157 struct vmw_legacy_display_unit
*ldu
)
159 struct vmw_legacy_display
*ld
= vmw_priv
->ldu_priv
;
160 if (list_empty(&ldu
->active
))
163 /* Must init otherwise list_empty(&ldu->active) will not work. */
164 list_del_init(&ldu
->active
);
165 if (--(ld
->num_active
) == 0) {
168 ld
->fb
->unpin(ld
->fb
);
175 static int vmw_ldu_add_active(struct vmw_private
*vmw_priv
,
176 struct vmw_legacy_display_unit
*ldu
,
177 struct vmw_framebuffer
*vfb
)
179 struct vmw_legacy_display
*ld
= vmw_priv
->ldu_priv
;
180 struct vmw_legacy_display_unit
*entry
;
181 struct list_head
*at
;
183 BUG_ON(!ld
->num_active
&& ld
->fb
);
185 if (ld
->fb
&& ld
->fb
->unpin
)
186 ld
->fb
->unpin(ld
->fb
);
192 if (!list_empty(&ldu
->active
))
196 list_for_each_entry(entry
, &ld
->active
, active
) {
197 if (entry
->base
.unit
> ldu
->base
.unit
)
203 list_add(&ldu
->active
, at
);
210 static int vmw_ldu_crtc_set_config(struct drm_mode_set
*set
)
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
;
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
);
233 if (set
->num_connectors
> 1) {
234 DRM_ERROR("to many connectors\n");
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
);
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");
254 /* since they always map one to one these are safe */
255 connector
= &ldu
->base
.connector
;
256 encoder
= &ldu
->base
.encoder
;
258 /* should we turn the crtc off? */
259 if (set
->num_connectors
== 0 || !set
->mode
|| !set
->fb
) {
261 connector
->encoder
= NULL
;
262 encoder
->crtc
= NULL
;
263 crtc
->primary
->fb
= NULL
;
264 crtc
->enabled
= false;
266 vmw_ldu_del_active(dev_priv
, ldu
);
268 return vmw_ldu_commit_list(dev_priv
);
272 /* we now know we want to set a mode */
276 if (set
->x
+ mode
->hdisplay
> fb
->width
||
277 set
->y
+ mode
->vdisplay
> fb
->height
) {
278 DRM_ERROR("set outside of framebuffer\n");
282 vmw_svga_enable(dev_priv
);
284 crtc
->primary
->fb
= fb
;
285 encoder
->crtc
= crtc
;
286 connector
->encoder
= encoder
;
290 crtc
->enabled
= true;
291 ldu
->base
.set_gui_x
= set
->x
;
292 ldu
->base
.set_gui_y
= set
->y
;
294 vmw_ldu_add_active(dev_priv
, ldu
, vfb
);
296 return vmw_ldu_commit_list(dev_priv
);
299 static 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
,
309 * Legacy Display Unit encoder functions
312 static void vmw_ldu_encoder_destroy(struct drm_encoder
*encoder
)
314 vmw_ldu_destroy(vmw_encoder_to_ldu(encoder
));
317 static const struct drm_encoder_funcs vmw_legacy_encoder_funcs
= {
318 .destroy
= vmw_ldu_encoder_destroy
,
322 * Legacy Display Unit connector functions
325 static void vmw_ldu_connector_destroy(struct drm_connector
*connector
)
327 vmw_ldu_destroy(vmw_connector_to_ldu(connector
));
330 static 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
,
338 static int vmw_ldu_init(struct vmw_private
*dev_priv
, unsigned unit
)
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
;
346 ldu
= kzalloc(sizeof(*ldu
), GFP_KERNEL
);
350 ldu
->base
.unit
= unit
;
351 crtc
= &ldu
->base
.crtc
;
352 encoder
= &ldu
->base
.encoder
;
353 connector
= &ldu
->base
.connector
;
355 INIT_LIST_HEAD(&ldu
->active
);
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;
363 drm_connector_init(dev
, connector
, &vmw_legacy_connector_funcs
,
364 DRM_MODE_CONNECTOR_VIRTUAL
);
365 connector
->status
= vmw_du_connector_detect(connector
, true);
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;
373 (void) drm_connector_register(connector
);
375 drm_crtc_init(dev
, crtc
, &vmw_legacy_crtc_funcs
);
377 drm_mode_crtc_set_gamma_size(crtc
, 256);
379 drm_object_attach_property(&connector
->base
,
380 dev
->mode_config
.dirty_info_property
,
382 drm_object_attach_property(&connector
->base
,
383 dev_priv
->hotplug_mode_update_property
, 1);
384 drm_object_attach_property(&connector
->base
,
385 dev
->mode_config
.suggested_x_property
, 0);
386 drm_object_attach_property(&connector
->base
,
387 dev
->mode_config
.suggested_y_property
, 0);
388 if (dev_priv
->implicit_placement_property
)
389 drm_object_attach_property
391 dev_priv
->implicit_placement_property
,
397 int vmw_kms_ldu_init_display(struct vmw_private
*dev_priv
)
399 struct drm_device
*dev
= dev_priv
->dev
;
402 if (dev_priv
->ldu_priv
) {
403 DRM_INFO("ldu system already on\n");
407 dev_priv
->ldu_priv
= kmalloc(sizeof(*dev_priv
->ldu_priv
), GFP_KERNEL
);
408 if (!dev_priv
->ldu_priv
)
411 INIT_LIST_HEAD(&dev_priv
->ldu_priv
->active
);
412 dev_priv
->ldu_priv
->num_active
= 0;
413 dev_priv
->ldu_priv
->last_num_active
= 0;
414 dev_priv
->ldu_priv
->fb
= NULL
;
416 /* for old hardware without multimon only enable one display */
417 if (dev_priv
->capabilities
& SVGA_CAP_MULTIMON
)
418 ret
= drm_vblank_init(dev
, VMWGFX_NUM_DISPLAY_UNITS
);
420 ret
= drm_vblank_init(dev
, 1);
424 ret
= drm_mode_create_dirty_info_property(dev
);
426 goto err_vblank_cleanup
;
428 vmw_kms_create_implicit_placement_property(dev_priv
, true);
430 if (dev_priv
->capabilities
& SVGA_CAP_MULTIMON
)
431 for (i
= 0; i
< VMWGFX_NUM_DISPLAY_UNITS
; ++i
)
432 vmw_ldu_init(dev_priv
, i
);
434 vmw_ldu_init(dev_priv
, 0);
436 dev_priv
->active_display_unit
= vmw_du_legacy
;
438 DRM_INFO("Legacy Display Unit initialized\n");
443 drm_vblank_cleanup(dev
);
445 kfree(dev_priv
->ldu_priv
);
446 dev_priv
->ldu_priv
= NULL
;
450 int vmw_kms_ldu_close_display(struct vmw_private
*dev_priv
)
452 struct drm_device
*dev
= dev_priv
->dev
;
454 if (!dev_priv
->ldu_priv
)
457 drm_vblank_cleanup(dev
);
459 BUG_ON(!list_empty(&dev_priv
->ldu_priv
->active
));
461 kfree(dev_priv
->ldu_priv
);
467 int vmw_kms_ldu_do_dmabuf_dirty(struct vmw_private
*dev_priv
,
468 struct vmw_framebuffer
*framebuffer
,
469 unsigned flags
, unsigned color
,
470 struct drm_clip_rect
*clips
,
471 unsigned num_clips
, int increment
)
478 SVGAFifoCmdUpdate body
;
481 fifo_size
= sizeof(*cmd
) * num_clips
;
482 cmd
= vmw_fifo_reserve(dev_priv
, fifo_size
);
483 if (unlikely(cmd
== NULL
)) {
484 DRM_ERROR("Fifo reserve failed.\n");
488 memset(cmd
, 0, fifo_size
);
489 for (i
= 0; i
< num_clips
; i
++, clips
+= increment
) {
490 cmd
[i
].header
= SVGA_CMD_UPDATE
;
491 cmd
[i
].body
.x
= clips
->x1
;
492 cmd
[i
].body
.y
= clips
->y1
;
493 cmd
[i
].body
.width
= clips
->x2
- clips
->x1
;
494 cmd
[i
].body
.height
= clips
->y2
- clips
->y1
;
497 vmw_fifo_commit(dev_priv
, fifo_size
);