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1/******************************************************************************
2 *
3 * COPYRIGHT © 2014-2015 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 ******************************************************************************/
27
28#include "vmwgfx_kms.h"
29#include "device_include/svga3d_surfacedefs.h"
30#include <drm/drm_plane_helper.h>
31
32#define vmw_crtc_to_stdu(x) \
33 container_of(x, struct vmw_screen_target_display_unit, base.crtc)
34#define vmw_encoder_to_stdu(x) \
35 container_of(x, struct vmw_screen_target_display_unit, base.encoder)
36#define vmw_connector_to_stdu(x) \
37 container_of(x, struct vmw_screen_target_display_unit, base.connector)
38
39
40
41enum stdu_content_type {
42 SAME_AS_DISPLAY = 0,
43 SEPARATE_SURFACE,
44 SEPARATE_DMA
45};
46
47/**
48 * struct vmw_stdu_dirty - closure structure for the update functions
49 *
50 * @base: The base type we derive from. Used by vmw_kms_helper_dirty().
51 * @transfer: Transfer direction for DMA command.
52 * @left: Left side of bounding box.
53 * @right: Right side of bounding box.
54 * @top: Top side of bounding box.
55 * @bottom: Bottom side of bounding box.
56 * @buf: DMA buffer when DMA-ing between buffer and screen targets.
57 * @sid: Surface ID when copying between surface and screen targets.
58 */
59struct vmw_stdu_dirty {
60 struct vmw_kms_dirty base;
61 SVGA3dTransferType transfer;
62 s32 left, right, top, bottom;
63 u32 pitch;
64 union {
65 struct vmw_dma_buffer *buf;
66 u32 sid;
67 };
68};
69
70/*
71 * SVGA commands that are used by this code. Please see the device headers
72 * for explanation.
73 */
74struct vmw_stdu_update {
75 SVGA3dCmdHeader header;
76 SVGA3dCmdUpdateGBScreenTarget body;
77};
78
79struct vmw_stdu_dma {
80 SVGA3dCmdHeader header;
81 SVGA3dCmdSurfaceDMA body;
82};
83
84struct vmw_stdu_surface_copy {
85 SVGA3dCmdHeader header;
86 SVGA3dCmdSurfaceCopy body;
87};
88
89
90/**
91 * struct vmw_screen_target_display_unit
92 *
93 * @base: VMW specific DU structure
94 * @display_srf: surface to be displayed. The dimension of this will always
95 * match the display mode. If the display mode matches
96 * content_vfbs dimensions, then this is a pointer into the
97 * corresponding field in content_vfbs. If not, then this
98 * is a separate buffer to which content_vfbs will blit to.
99 * @content_type: content_fb type
100 * @defined: true if the current display unit has been initialized
101 */
102struct vmw_screen_target_display_unit {
103 struct vmw_display_unit base;
104
105 struct vmw_surface *display_srf;
106 enum stdu_content_type content_fb_type;
107
108 bool defined;
109};
110
111
112
113static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu);
114
115
116
117/******************************************************************************
118 * Screen Target Display Unit helper Functions
119 *****************************************************************************/
120
121/**
122 * vmw_stdu_unpin_display - unpins the resource associated with display surface
123 *
124 * @stdu: contains the display surface
125 *
126 * If the display surface was privatedly allocated by
127 * vmw_surface_gb_priv_define() and not registered as a framebuffer, then it
128 * won't be automatically cleaned up when all the framebuffers are freed. As
129 * such, we have to explicitly call vmw_resource_unreference() to get it freed.
130 */
131static void vmw_stdu_unpin_display(struct vmw_screen_target_display_unit *stdu)
132{
133 if (stdu->display_srf) {
134 struct vmw_resource *res = &stdu->display_srf->res;
135
136 vmw_resource_unpin(res);
137 vmw_surface_unreference(&stdu->display_srf);
138 }
139}
140
141
142
143/******************************************************************************
144 * Screen Target Display Unit CRTC Functions
145 *****************************************************************************/
146
147
148/**
149 * vmw_stdu_crtc_destroy - cleans up the STDU
150 *
151 * @crtc: used to get a reference to the containing STDU
152 */
153static void vmw_stdu_crtc_destroy(struct drm_crtc *crtc)
154{
155 vmw_stdu_destroy(vmw_crtc_to_stdu(crtc));
156}
157
158/**
159 * vmw_stdu_define_st - Defines a Screen Target
160 *
161 * @dev_priv: VMW DRM device
162 * @stdu: display unit to create a Screen Target for
163 * @mode: The mode to set.
164 * @crtc_x: X coordinate of screen target relative to framebuffer origin.
165 * @crtc_y: Y coordinate of screen target relative to framebuffer origin.
166 *
167 * Creates a STDU that we can used later. This function is called whenever the
168 * framebuffer size changes.
169 *
170 * RETURNs:
171 * 0 on success, error code on failure
172 */
173static int vmw_stdu_define_st(struct vmw_private *dev_priv,
174 struct vmw_screen_target_display_unit *stdu,
175 struct drm_display_mode *mode,
176 int crtc_x, int crtc_y)
177{
178 struct {
179 SVGA3dCmdHeader header;
180 SVGA3dCmdDefineGBScreenTarget body;
181 } *cmd;
182
183 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
184
185 if (unlikely(cmd == NULL)) {
186 DRM_ERROR("Out of FIFO space defining Screen Target\n");
187 return -ENOMEM;
188 }
189
190 cmd->header.id = SVGA_3D_CMD_DEFINE_GB_SCREENTARGET;
191 cmd->header.size = sizeof(cmd->body);
192
193 cmd->body.stid = stdu->base.unit;
194 cmd->body.width = mode->hdisplay;
195 cmd->body.height = mode->vdisplay;
196 cmd->body.flags = (0 == cmd->body.stid) ? SVGA_STFLAG_PRIMARY : 0;
197 cmd->body.dpi = 0;
198 if (stdu->base.is_implicit) {
199 cmd->body.xRoot = crtc_x;
200 cmd->body.yRoot = crtc_y;
201 } else {
202 cmd->body.xRoot = stdu->base.gui_x;
203 cmd->body.yRoot = stdu->base.gui_y;
204 }
205 stdu->base.set_gui_x = cmd->body.xRoot;
206 stdu->base.set_gui_y = cmd->body.yRoot;
207
208 vmw_fifo_commit(dev_priv, sizeof(*cmd));
209
210 stdu->defined = true;
211
212 return 0;
213}
214
215
216
217/**
218 * vmw_stdu_bind_st - Binds a surface to a Screen Target
219 *
220 * @dev_priv: VMW DRM device
221 * @stdu: display unit affected
222 * @res: Buffer to bind to the screen target. Set to NULL to blank screen.
223 *
224 * Binding a surface to a Screen Target the same as flipping
225 */
226static int vmw_stdu_bind_st(struct vmw_private *dev_priv,
227 struct vmw_screen_target_display_unit *stdu,
228 struct vmw_resource *res)
229{
230 SVGA3dSurfaceImageId image;
231
232 struct {
233 SVGA3dCmdHeader header;
234 SVGA3dCmdBindGBScreenTarget body;
235 } *cmd;
236
237
238 if (!stdu->defined) {
239 DRM_ERROR("No screen target defined\n");
240 return -EINVAL;
241 }
242
243 /* Set up image using information in vfb */
244 memset(&image, 0, sizeof(image));
245 image.sid = res ? res->id : SVGA3D_INVALID_ID;
246
247 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
248
249 if (unlikely(cmd == NULL)) {
250 DRM_ERROR("Out of FIFO space binding a screen target\n");
251 return -ENOMEM;
252 }
253
254 cmd->header.id = SVGA_3D_CMD_BIND_GB_SCREENTARGET;
255 cmd->header.size = sizeof(cmd->body);
256
257 cmd->body.stid = stdu->base.unit;
258 cmd->body.image = image;
259
260 vmw_fifo_commit(dev_priv, sizeof(*cmd));
261
262 return 0;
263}
264
265/**
266 * vmw_stdu_populate_update - populate an UPDATE_GB_SCREENTARGET command with a
267 * bounding box.
268 *
269 * @cmd: Pointer to command stream.
270 * @unit: Screen target unit.
271 * @left: Left side of bounding box.
272 * @right: Right side of bounding box.
273 * @top: Top side of bounding box.
274 * @bottom: Bottom side of bounding box.
275 */
276static void vmw_stdu_populate_update(void *cmd, int unit,
277 s32 left, s32 right, s32 top, s32 bottom)
278{
279 struct vmw_stdu_update *update = cmd;
280
281 update->header.id = SVGA_3D_CMD_UPDATE_GB_SCREENTARGET;
282 update->header.size = sizeof(update->body);
283
284 update->body.stid = unit;
285 update->body.rect.x = left;
286 update->body.rect.y = top;
287 update->body.rect.w = right - left;
288 update->body.rect.h = bottom - top;
289}
290
291/**
292 * vmw_stdu_update_st - Full update of a Screen Target
293 *
294 * @dev_priv: VMW DRM device
295 * @stdu: display unit affected
296 *
297 * This function needs to be called whenever the content of a screen
298 * target has changed completely. Typically as a result of a backing
299 * surface change.
300 *
301 * RETURNS:
302 * 0 on success, error code on failure
303 */
304static int vmw_stdu_update_st(struct vmw_private *dev_priv,
305 struct vmw_screen_target_display_unit *stdu)
306{
307 struct vmw_stdu_update *cmd;
308 struct drm_crtc *crtc = &stdu->base.crtc;
309
310 if (!stdu->defined) {
311 DRM_ERROR("No screen target defined");
312 return -EINVAL;
313 }
314
315 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
316
317 if (unlikely(cmd == NULL)) {
318 DRM_ERROR("Out of FIFO space updating a Screen Target\n");
319 return -ENOMEM;
320 }
321
322 vmw_stdu_populate_update(cmd, stdu->base.unit, 0, crtc->mode.hdisplay,
323 0, crtc->mode.vdisplay);
324
325 vmw_fifo_commit(dev_priv, sizeof(*cmd));
326
327 return 0;
328}
329
330
331
332/**
333 * vmw_stdu_destroy_st - Destroy a Screen Target
334 *
335 * @dev_priv: VMW DRM device
336 * @stdu: display unit to destroy
337 */
338static int vmw_stdu_destroy_st(struct vmw_private *dev_priv,
339 struct vmw_screen_target_display_unit *stdu)
340{
341 int ret;
342
343 struct {
344 SVGA3dCmdHeader header;
345 SVGA3dCmdDestroyGBScreenTarget body;
346 } *cmd;
347
348
349 /* Nothing to do if not successfully defined */
350 if (unlikely(!stdu->defined))
351 return 0;
352
353 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
354
355 if (unlikely(cmd == NULL)) {
356 DRM_ERROR("Out of FIFO space, screen target not destroyed\n");
357 return -ENOMEM;
358 }
359
360 cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SCREENTARGET;
361 cmd->header.size = sizeof(cmd->body);
362
363 cmd->body.stid = stdu->base.unit;
364
365 vmw_fifo_commit(dev_priv, sizeof(*cmd));
366
367 /* Force sync */
368 ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ);
369 if (unlikely(ret != 0))
370 DRM_ERROR("Failed to sync with HW");
371
372 stdu->defined = false;
373
374 return ret;
375}
376
377/**
378 * vmw_stdu_bind_fb - Bind an fb to a defined screen target
379 *
380 * @dev_priv: Pointer to a device private struct.
381 * @crtc: The crtc holding the screen target.
382 * @mode: The mode currently used by the screen target. Must be non-NULL.
383 * @new_fb: The new framebuffer to bind. Must be non-NULL.
384 *
385 * RETURNS:
386 * 0 on success, error code on failure.
387 */
388static int vmw_stdu_bind_fb(struct vmw_private *dev_priv,
389 struct drm_crtc *crtc,
390 struct drm_display_mode *mode,
391 struct drm_framebuffer *new_fb)
392{
393 struct vmw_screen_target_display_unit *stdu = vmw_crtc_to_stdu(crtc);
394 struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb);
395 struct vmw_surface *new_display_srf = NULL;
396 enum stdu_content_type new_content_type;
397 struct vmw_framebuffer_surface *new_vfbs;
398 int ret;
399
400 WARN_ON_ONCE(!stdu->defined);
401
402 if (!vfb->dmabuf && new_fb->width == mode->hdisplay &&
403 new_fb->height == mode->vdisplay)
404 new_content_type = SAME_AS_DISPLAY;
405 else if (vfb->dmabuf)
406 new_content_type = SEPARATE_DMA;
407 else
408 new_content_type = SEPARATE_SURFACE;
409
410 if (new_content_type != SAME_AS_DISPLAY &&
411 !stdu->display_srf) {
412 struct vmw_surface content_srf;
413 struct drm_vmw_size display_base_size = {0};
414
415 display_base_size.width = mode->hdisplay;
416 display_base_size.height = mode->vdisplay;
417 display_base_size.depth = 1;
418
419 /*
420 * If content buffer is a DMA buf, then we have to construct
421 * surface info
422 */
423 if (new_content_type == SEPARATE_DMA) {
424
425 switch (new_fb->bits_per_pixel) {
426 case 32:
427 content_srf.format = SVGA3D_X8R8G8B8;
428 break;
429
430 case 16:
431 content_srf.format = SVGA3D_R5G6B5;
432 break;
433
434 case 8:
435 content_srf.format = SVGA3D_P8;
436 break;
437
438 default:
439 DRM_ERROR("Invalid format\n");
440 return -EINVAL;
441 }
442
443 content_srf.flags = 0;
444 content_srf.mip_levels[0] = 1;
445 content_srf.multisample_count = 0;
446 } else {
447 new_vfbs = vmw_framebuffer_to_vfbs(new_fb);
448 content_srf = *new_vfbs->surface;
449 }
450
451
452 ret = vmw_surface_gb_priv_define(crtc->dev,
453 0, /* because kernel visible only */
454 content_srf.flags,
455 content_srf.format,
456 true, /* a scanout buffer */
457 content_srf.mip_levels[0],
458 content_srf.multisample_count,
459 0,
460 display_base_size,
461 &new_display_srf);
462 if (unlikely(ret != 0)) {
463 DRM_ERROR("Could not allocate screen target surface.\n");
464 return ret;
465 }
466 } else if (new_content_type == SAME_AS_DISPLAY) {
467 new_vfbs = vmw_framebuffer_to_vfbs(new_fb);
468 new_display_srf = vmw_surface_reference(new_vfbs->surface);
469 }
470
471 if (new_display_srf) {
472 /* Pin new surface before flipping */
473 ret = vmw_resource_pin(&new_display_srf->res, false);
474 if (ret)
475 goto out_srf_unref;
476
477 ret = vmw_stdu_bind_st(dev_priv, stdu, &new_display_srf->res);
478 if (ret)
479 goto out_srf_unpin;
480
481 /* Unpin and unreference old surface */
482 vmw_stdu_unpin_display(stdu);
483
484 /* Transfer the reference */
485 stdu->display_srf = new_display_srf;
486 new_display_srf = NULL;
487 }
488
489 crtc->primary->fb = new_fb;
490 stdu->content_fb_type = new_content_type;
491 return 0;
492
493out_srf_unpin:
494 vmw_resource_unpin(&new_display_srf->res);
495out_srf_unref:
496 vmw_surface_unreference(&new_display_srf);
497 return ret;
498}
499
500/**
501 * vmw_stdu_crtc_set_config - Sets a mode
502 *
503 * @set: mode parameters
504 *
505 * This function is the device-specific portion of the DRM CRTC mode set.
506 * For the SVGA device, we do this by defining a Screen Target, binding a
507 * GB Surface to that target, and finally update the screen target.
508 *
509 * RETURNS:
510 * 0 on success, error code otherwise
511 */
512static int vmw_stdu_crtc_set_config(struct drm_mode_set *set)
513{
514 struct vmw_private *dev_priv;
515 struct vmw_framebuffer *vfb;
516 struct vmw_screen_target_display_unit *stdu;
517 struct drm_display_mode *mode;
518 struct drm_framebuffer *new_fb;
519 struct drm_crtc *crtc;
520 struct drm_encoder *encoder;
521 struct drm_connector *connector;
522 bool turning_off;
523 int ret;
524
525
526 if (!set || !set->crtc)
527 return -EINVAL;
528
529 crtc = set->crtc;
530 stdu = vmw_crtc_to_stdu(crtc);
531 mode = set->mode;
532 new_fb = set->fb;
533 dev_priv = vmw_priv(crtc->dev);
534 turning_off = set->num_connectors == 0 || !mode || !new_fb;
535 vfb = (new_fb) ? vmw_framebuffer_to_vfb(new_fb) : NULL;
536
537 if (set->num_connectors > 1) {
538 DRM_ERROR("Too many connectors\n");
539 return -EINVAL;
540 }
541
542 if (set->num_connectors == 1 &&
543 set->connectors[0] != &stdu->base.connector) {
544 DRM_ERROR("Connectors don't match %p %p\n",
545 set->connectors[0], &stdu->base.connector);
546 return -EINVAL;
547 }
548
549 if (!turning_off && (set->x + mode->hdisplay > new_fb->width ||
550 set->y + mode->vdisplay > new_fb->height)) {
551 DRM_ERROR("Set outside of framebuffer\n");
552 return -EINVAL;
553 }
554
555 /* Only one active implicit frame-buffer at a time. */
556 if (!turning_off && stdu->base.is_implicit && dev_priv->implicit_fb &&
557 !(dev_priv->num_implicit == 1 && stdu->base.active_implicit)
558 && dev_priv->implicit_fb != vfb) {
559 DRM_ERROR("Multiple implicit framebuffers not supported.\n");
560 return -EINVAL;
561 }
562
563 /* Since they always map one to one these are safe */
564 connector = &stdu->base.connector;
565 encoder = &stdu->base.encoder;
566
567 if (stdu->defined) {
568 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
569 if (ret)
570 return ret;
571
572 vmw_stdu_unpin_display(stdu);
573 (void) vmw_stdu_update_st(dev_priv, stdu);
574 vmw_kms_del_active(dev_priv, &stdu->base);
575
576 ret = vmw_stdu_destroy_st(dev_priv, stdu);
577 if (ret)
578 return ret;
579
580 crtc->primary->fb = NULL;
581 crtc->enabled = false;
582 encoder->crtc = NULL;
583 connector->encoder = NULL;
584 stdu->content_fb_type = SAME_AS_DISPLAY;
585 crtc->x = set->x;
586 crtc->y = set->y;
587 }
588
589 if (turning_off)
590 return 0;
591
592 /*
593 * Steps to displaying a surface, assume surface is already
594 * bound:
595 * 1. define a screen target
596 * 2. bind a fb to the screen target
597 * 3. update that screen target (this is done later by
598 * vmw_kms_stdu_do_surface_dirty_or_present)
599 */
600 /*
601 * Note on error handling: We can't really restore the crtc to
602 * it's original state on error, but we at least update the
603 * current state to what's submitted to hardware to enable
604 * future recovery.
605 */
606 vmw_svga_enable(dev_priv);
607 ret = vmw_stdu_define_st(dev_priv, stdu, mode, set->x, set->y);
608 if (ret)
609 return ret;
610
611 crtc->x = set->x;
612 crtc->y = set->y;
613 crtc->mode = *mode;
614
615 ret = vmw_stdu_bind_fb(dev_priv, crtc, mode, new_fb);
616 if (ret)
617 return ret;
618
619 vmw_kms_add_active(dev_priv, &stdu->base, vfb);
620 crtc->enabled = true;
621 connector->encoder = encoder;
622 encoder->crtc = crtc;
623
624 return 0;
625}
626
627/**
628 * vmw_stdu_crtc_page_flip - Binds a buffer to a screen target
629 *
630 * @crtc: CRTC to attach FB to
631 * @fb: FB to attach
632 * @event: Event to be posted. This event should've been alloced
633 * using k[mz]alloc, and should've been completely initialized.
634 * @page_flip_flags: Input flags.
635 *
636 * If the STDU uses the same display and content buffers, i.e. a true flip,
637 * this function will replace the existing display buffer with the new content
638 * buffer.
639 *
640 * If the STDU uses different display and content buffers, i.e. a blit, then
641 * only the content buffer will be updated.
642 *
643 * RETURNS:
644 * 0 on success, error code on failure
645 */
646static int vmw_stdu_crtc_page_flip(struct drm_crtc *crtc,
647 struct drm_framebuffer *new_fb,
648 struct drm_pending_vblank_event *event,
649 uint32_t flags)
650
651{
652 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
653 struct vmw_screen_target_display_unit *stdu;
654 struct drm_vmw_rect vclips;
655 struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb);
656 int ret;
657
658 dev_priv = vmw_priv(crtc->dev);
659 stdu = vmw_crtc_to_stdu(crtc);
660
661 if (!stdu->defined || !vmw_kms_crtc_flippable(dev_priv, crtc))
662 return -EINVAL;
663
664 ret = vmw_stdu_bind_fb(dev_priv, crtc, &crtc->mode, new_fb);
665 if (ret)
666 return ret;
667
668 if (stdu->base.is_implicit)
669 vmw_kms_update_implicit_fb(dev_priv, crtc);
670
671 vclips.x = crtc->x;
672 vclips.y = crtc->y;
673 vclips.w = crtc->mode.hdisplay;
674 vclips.h = crtc->mode.vdisplay;
675 if (vfb->dmabuf)
676 ret = vmw_kms_stdu_dma(dev_priv, NULL, vfb, NULL, NULL, &vclips,
677 1, 1, true, false);
678 else
679 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, &vclips,
680 NULL, 0, 0, 1, 1, NULL);
681 if (ret)
682 return ret;
683
684 if (event) {
685 struct vmw_fence_obj *fence = NULL;
686 struct drm_file *file_priv = event->base.file_priv;
687
688 vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL);
689 if (!fence)
690 return -ENOMEM;
691
692 ret = vmw_event_fence_action_queue(file_priv, fence,
693 &event->base,
694 &event->event.tv_sec,
695 &event->event.tv_usec,
696 true);
697 vmw_fence_obj_unreference(&fence);
698 } else {
699 vmw_fifo_flush(dev_priv, false);
700 }
701
702 return 0;
703}
704
705
706/**
707 * vmw_stdu_dmabuf_clip - Callback to encode a suface DMA command cliprect
708 *
709 * @dirty: The closure structure.
710 *
711 * Encodes a surface DMA command cliprect and updates the bounding box
712 * for the DMA.
713 */
714static void vmw_stdu_dmabuf_clip(struct vmw_kms_dirty *dirty)
715{
716 struct vmw_stdu_dirty *ddirty =
717 container_of(dirty, struct vmw_stdu_dirty, base);
718 struct vmw_stdu_dma *cmd = dirty->cmd;
719 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
720
721 blit += dirty->num_hits;
722 blit->srcx = dirty->fb_x;
723 blit->srcy = dirty->fb_y;
724 blit->x = dirty->unit_x1;
725 blit->y = dirty->unit_y1;
726 blit->d = 1;
727 blit->w = dirty->unit_x2 - dirty->unit_x1;
728 blit->h = dirty->unit_y2 - dirty->unit_y1;
729 dirty->num_hits++;
730
731 if (ddirty->transfer != SVGA3D_WRITE_HOST_VRAM)
732 return;
733
734 /* Destination bounding box */
735 ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1);
736 ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1);
737 ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2);
738 ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2);
739}
740
741/**
742 * vmw_stdu_dmabuf_fifo_commit - Callback to fill in and submit a DMA command.
743 *
744 * @dirty: The closure structure.
745 *
746 * Fills in the missing fields in a DMA command, and optionally encodes
747 * a screen target update command, depending on transfer direction.
748 */
749static void vmw_stdu_dmabuf_fifo_commit(struct vmw_kms_dirty *dirty)
750{
751 struct vmw_stdu_dirty *ddirty =
752 container_of(dirty, struct vmw_stdu_dirty, base);
753 struct vmw_screen_target_display_unit *stdu =
754 container_of(dirty->unit, typeof(*stdu), base);
755 struct vmw_stdu_dma *cmd = dirty->cmd;
756 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
757 SVGA3dCmdSurfaceDMASuffix *suffix =
758 (SVGA3dCmdSurfaceDMASuffix *) &blit[dirty->num_hits];
759 size_t blit_size = sizeof(*blit) * dirty->num_hits + sizeof(*suffix);
760
761 if (!dirty->num_hits) {
762 vmw_fifo_commit(dirty->dev_priv, 0);
763 return;
764 }
765
766 cmd->header.id = SVGA_3D_CMD_SURFACE_DMA;
767 cmd->header.size = sizeof(cmd->body) + blit_size;
768 vmw_bo_get_guest_ptr(&ddirty->buf->base, &cmd->body.guest.ptr);
769 cmd->body.guest.pitch = ddirty->pitch;
770 cmd->body.host.sid = stdu->display_srf->res.id;
771 cmd->body.host.face = 0;
772 cmd->body.host.mipmap = 0;
773 cmd->body.transfer = ddirty->transfer;
774 suffix->suffixSize = sizeof(*suffix);
775 suffix->maximumOffset = ddirty->buf->base.num_pages * PAGE_SIZE;
776
777 if (ddirty->transfer == SVGA3D_WRITE_HOST_VRAM) {
778 blit_size += sizeof(struct vmw_stdu_update);
779
780 vmw_stdu_populate_update(&suffix[1], stdu->base.unit,
781 ddirty->left, ddirty->right,
782 ddirty->top, ddirty->bottom);
783 }
784
785 vmw_fifo_commit(dirty->dev_priv, sizeof(*cmd) + blit_size);
786
787 ddirty->left = ddirty->top = S32_MAX;
788 ddirty->right = ddirty->bottom = S32_MIN;
789}
790
791/**
792 * vmw_kms_stdu_dma - Perform a DMA transfer between a dma-buffer backed
793 * framebuffer and the screen target system.
794 *
795 * @dev_priv: Pointer to the device private structure.
796 * @file_priv: Pointer to a struct drm-file identifying the caller. May be
797 * set to NULL, but then @user_fence_rep must also be set to NULL.
798 * @vfb: Pointer to the dma-buffer backed framebuffer.
799 * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
800 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
801 * be NULL.
802 * @num_clips: Number of clip rects in @clips or @vclips.
803 * @increment: Increment to use when looping over @clips or @vclips.
804 * @to_surface: Whether to DMA to the screen target system as opposed to
805 * from the screen target system.
806 * @interruptible: Whether to perform waits interruptible if possible.
807 *
808 * If DMA-ing till the screen target system, the function will also notify
809 * the screen target system that a bounding box of the cliprects has been
810 * updated.
811 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
812 * interrupted.
813 */
814int vmw_kms_stdu_dma(struct vmw_private *dev_priv,
815 struct drm_file *file_priv,
816 struct vmw_framebuffer *vfb,
817 struct drm_vmw_fence_rep __user *user_fence_rep,
818 struct drm_clip_rect *clips,
819 struct drm_vmw_rect *vclips,
820 uint32_t num_clips,
821 int increment,
822 bool to_surface,
823 bool interruptible)
824{
825 struct vmw_dma_buffer *buf =
826 container_of(vfb, struct vmw_framebuffer_dmabuf, base)->buffer;
827 struct vmw_stdu_dirty ddirty;
828 int ret;
829
830 ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, interruptible,
831 false);
832 if (ret)
833 return ret;
834
835 ddirty.transfer = (to_surface) ? SVGA3D_WRITE_HOST_VRAM :
836 SVGA3D_READ_HOST_VRAM;
837 ddirty.left = ddirty.top = S32_MAX;
838 ddirty.right = ddirty.bottom = S32_MIN;
839 ddirty.pitch = vfb->base.pitches[0];
840 ddirty.buf = buf;
841 ddirty.base.fifo_commit = vmw_stdu_dmabuf_fifo_commit;
842 ddirty.base.clip = vmw_stdu_dmabuf_clip;
843 ddirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_dma) +
844 num_clips * sizeof(SVGA3dCopyBox) +
845 sizeof(SVGA3dCmdSurfaceDMASuffix);
846 if (to_surface)
847 ddirty.base.fifo_reserve_size += sizeof(struct vmw_stdu_update);
848
849 ret = vmw_kms_helper_dirty(dev_priv, vfb, clips, vclips,
850 0, 0, num_clips, increment, &ddirty.base);
851 vmw_kms_helper_buffer_finish(dev_priv, file_priv, buf, NULL,
852 user_fence_rep);
853
854 return ret;
855}
856
857/**
858 * vmw_stdu_surface_clip - Callback to encode a surface copy command cliprect
859 *
860 * @dirty: The closure structure.
861 *
862 * Encodes a surface copy command cliprect and updates the bounding box
863 * for the copy.
864 */
865static void vmw_kms_stdu_surface_clip(struct vmw_kms_dirty *dirty)
866{
867 struct vmw_stdu_dirty *sdirty =
868 container_of(dirty, struct vmw_stdu_dirty, base);
869 struct vmw_stdu_surface_copy *cmd = dirty->cmd;
870 struct vmw_screen_target_display_unit *stdu =
871 container_of(dirty->unit, typeof(*stdu), base);
872
873 if (sdirty->sid != stdu->display_srf->res.id) {
874 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
875
876 blit += dirty->num_hits;
877 blit->srcx = dirty->fb_x;
878 blit->srcy = dirty->fb_y;
879 blit->x = dirty->unit_x1;
880 blit->y = dirty->unit_y1;
881 blit->d = 1;
882 blit->w = dirty->unit_x2 - dirty->unit_x1;
883 blit->h = dirty->unit_y2 - dirty->unit_y1;
884 }
885
886 dirty->num_hits++;
887
888 /* Destination bounding box */
889 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1);
890 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1);
891 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2);
892 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2);
893}
894
895/**
896 * vmw_stdu_surface_fifo_commit - Callback to fill in and submit a surface
897 * copy command.
898 *
899 * @dirty: The closure structure.
900 *
901 * Fills in the missing fields in a surface copy command, and encodes a screen
902 * target update command.
903 */
904static void vmw_kms_stdu_surface_fifo_commit(struct vmw_kms_dirty *dirty)
905{
906 struct vmw_stdu_dirty *sdirty =
907 container_of(dirty, struct vmw_stdu_dirty, base);
908 struct vmw_screen_target_display_unit *stdu =
909 container_of(dirty->unit, typeof(*stdu), base);
910 struct vmw_stdu_surface_copy *cmd = dirty->cmd;
911 struct vmw_stdu_update *update;
912 size_t blit_size = sizeof(SVGA3dCopyBox) * dirty->num_hits;
913 size_t commit_size;
914
915 if (!dirty->num_hits) {
916 vmw_fifo_commit(dirty->dev_priv, 0);
917 return;
918 }
919
920 if (sdirty->sid != stdu->display_srf->res.id) {
921 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
922
923 cmd->header.id = SVGA_3D_CMD_SURFACE_COPY;
924 cmd->header.size = sizeof(cmd->body) + blit_size;
925 cmd->body.src.sid = sdirty->sid;
926 cmd->body.dest.sid = stdu->display_srf->res.id;
927 update = (struct vmw_stdu_update *) &blit[dirty->num_hits];
928 commit_size = sizeof(*cmd) + blit_size + sizeof(*update);
929 } else {
930 update = dirty->cmd;
931 commit_size = sizeof(*update);
932 }
933
934 vmw_stdu_populate_update(update, stdu->base.unit, sdirty->left,
935 sdirty->right, sdirty->top, sdirty->bottom);
936
937 vmw_fifo_commit(dirty->dev_priv, commit_size);
938
939 sdirty->left = sdirty->top = S32_MAX;
940 sdirty->right = sdirty->bottom = S32_MIN;
941}
942
943/**
944 * vmw_kms_stdu_surface_dirty - Dirty part of a surface backed framebuffer
945 *
946 * @dev_priv: Pointer to the device private structure.
947 * @framebuffer: Pointer to the surface-buffer backed framebuffer.
948 * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
949 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
950 * be NULL.
951 * @srf: Pointer to surface to blit from. If NULL, the surface attached
952 * to @framebuffer will be used.
953 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates.
954 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates.
955 * @num_clips: Number of clip rects in @clips.
956 * @inc: Increment to use when looping over @clips.
957 * @out_fence: If non-NULL, will return a ref-counted pointer to a
958 * struct vmw_fence_obj. The returned fence pointer may be NULL in which
959 * case the device has already synchronized.
960 *
961 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
962 * interrupted.
963 */
964int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv,
965 struct vmw_framebuffer *framebuffer,
966 struct drm_clip_rect *clips,
967 struct drm_vmw_rect *vclips,
968 struct vmw_resource *srf,
969 s32 dest_x,
970 s32 dest_y,
971 unsigned num_clips, int inc,
972 struct vmw_fence_obj **out_fence)
973{
974 struct vmw_framebuffer_surface *vfbs =
975 container_of(framebuffer, typeof(*vfbs), base);
976 struct vmw_stdu_dirty sdirty;
977 int ret;
978
979 if (!srf)
980 srf = &vfbs->surface->res;
981
982 ret = vmw_kms_helper_resource_prepare(srf, true);
983 if (ret)
984 return ret;
985
986 if (vfbs->is_dmabuf_proxy) {
987 ret = vmw_kms_update_proxy(srf, clips, num_clips, inc);
988 if (ret)
989 goto out_finish;
990 }
991
992 sdirty.base.fifo_commit = vmw_kms_stdu_surface_fifo_commit;
993 sdirty.base.clip = vmw_kms_stdu_surface_clip;
994 sdirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_surface_copy) +
995 sizeof(SVGA3dCopyBox) * num_clips +
996 sizeof(struct vmw_stdu_update);
997 sdirty.sid = srf->id;
998 sdirty.left = sdirty.top = S32_MAX;
999 sdirty.right = sdirty.bottom = S32_MIN;
1000
1001 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
1002 dest_x, dest_y, num_clips, inc,
1003 &sdirty.base);
1004out_finish:
1005 vmw_kms_helper_resource_finish(srf, out_fence);
1006
1007 return ret;
1008}
1009
1010
1011/*
1012 * Screen Target CRTC dispatch table
1013 */
1014static const struct drm_crtc_funcs vmw_stdu_crtc_funcs = {
1015 .cursor_set2 = vmw_du_crtc_cursor_set2,
1016 .cursor_move = vmw_du_crtc_cursor_move,
1017 .gamma_set = vmw_du_crtc_gamma_set,
1018 .destroy = vmw_stdu_crtc_destroy,
1019 .set_config = vmw_stdu_crtc_set_config,
1020 .page_flip = vmw_stdu_crtc_page_flip,
1021};
1022
1023
1024
1025/******************************************************************************
1026 * Screen Target Display Unit Encoder Functions
1027 *****************************************************************************/
1028
1029/**
1030 * vmw_stdu_encoder_destroy - cleans up the STDU
1031 *
1032 * @encoder: used the get the containing STDU
1033 *
1034 * vmwgfx cleans up crtc/encoder/connector all at the same time so technically
1035 * this can be a no-op. Nevertheless, it doesn't hurt of have this in case
1036 * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't
1037 * get called.
1038 */
1039static void vmw_stdu_encoder_destroy(struct drm_encoder *encoder)
1040{
1041 vmw_stdu_destroy(vmw_encoder_to_stdu(encoder));
1042}
1043
1044static const struct drm_encoder_funcs vmw_stdu_encoder_funcs = {
1045 .destroy = vmw_stdu_encoder_destroy,
1046};
1047
1048
1049
1050/******************************************************************************
1051 * Screen Target Display Unit Connector Functions
1052 *****************************************************************************/
1053
1054/**
1055 * vmw_stdu_connector_destroy - cleans up the STDU
1056 *
1057 * @connector: used to get the containing STDU
1058 *
1059 * vmwgfx cleans up crtc/encoder/connector all at the same time so technically
1060 * this can be a no-op. Nevertheless, it doesn't hurt of have this in case
1061 * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't
1062 * get called.
1063 */
1064static void vmw_stdu_connector_destroy(struct drm_connector *connector)
1065{
1066 vmw_stdu_destroy(vmw_connector_to_stdu(connector));
1067}
1068
1069
1070
1071static const struct drm_connector_funcs vmw_stdu_connector_funcs = {
1072 .dpms = vmw_du_connector_dpms,
1073 .detect = vmw_du_connector_detect,
1074 .fill_modes = vmw_du_connector_fill_modes,
1075 .set_property = vmw_du_connector_set_property,
1076 .destroy = vmw_stdu_connector_destroy,
1077};
1078
1079
1080
1081/**
1082 * vmw_stdu_init - Sets up a Screen Target Display Unit
1083 *
1084 * @dev_priv: VMW DRM device
1085 * @unit: unit number range from 0 to VMWGFX_NUM_DISPLAY_UNITS
1086 *
1087 * This function is called once per CRTC, and allocates one Screen Target
1088 * display unit to represent that CRTC. Since the SVGA device does not separate
1089 * out encoder and connector, they are represented as part of the STDU as well.
1090 */
1091static int vmw_stdu_init(struct vmw_private *dev_priv, unsigned unit)
1092{
1093 struct vmw_screen_target_display_unit *stdu;
1094 struct drm_device *dev = dev_priv->dev;
1095 struct drm_connector *connector;
1096 struct drm_encoder *encoder;
1097 struct drm_crtc *crtc;
1098
1099
1100 stdu = kzalloc(sizeof(*stdu), GFP_KERNEL);
1101 if (!stdu)
1102 return -ENOMEM;
1103
1104 stdu->base.unit = unit;
1105 crtc = &stdu->base.crtc;
1106 encoder = &stdu->base.encoder;
1107 connector = &stdu->base.connector;
1108
1109 stdu->base.pref_active = (unit == 0);
1110 stdu->base.pref_width = dev_priv->initial_width;
1111 stdu->base.pref_height = dev_priv->initial_height;
1112 stdu->base.is_implicit = false;
1113
1114 drm_connector_init(dev, connector, &vmw_stdu_connector_funcs,
1115 DRM_MODE_CONNECTOR_VIRTUAL);
1116 connector->status = vmw_du_connector_detect(connector, false);
1117
1118 drm_encoder_init(dev, encoder, &vmw_stdu_encoder_funcs,
1119 DRM_MODE_ENCODER_VIRTUAL, NULL);
1120 drm_mode_connector_attach_encoder(connector, encoder);
1121 encoder->possible_crtcs = (1 << unit);
1122 encoder->possible_clones = 0;
1123
1124 (void) drm_connector_register(connector);
1125
1126 drm_crtc_init(dev, crtc, &vmw_stdu_crtc_funcs);
1127
1128 drm_mode_crtc_set_gamma_size(crtc, 256);
1129
1130 drm_object_attach_property(&connector->base,
1131 dev->mode_config.dirty_info_property,
1132 1);
1133 drm_object_attach_property(&connector->base,
1134 dev_priv->hotplug_mode_update_property, 1);
1135 drm_object_attach_property(&connector->base,
1136 dev->mode_config.suggested_x_property, 0);
1137 drm_object_attach_property(&connector->base,
1138 dev->mode_config.suggested_y_property, 0);
1139 if (dev_priv->implicit_placement_property)
1140 drm_object_attach_property
1141 (&connector->base,
1142 dev_priv->implicit_placement_property,
1143 stdu->base.is_implicit);
1144 return 0;
1145}
1146
1147
1148
1149/**
1150 * vmw_stdu_destroy - Cleans up a vmw_screen_target_display_unit
1151 *
1152 * @stdu: Screen Target Display Unit to be destroyed
1153 *
1154 * Clean up after vmw_stdu_init
1155 */
1156static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu)
1157{
1158 vmw_stdu_unpin_display(stdu);
1159
1160 vmw_du_cleanup(&stdu->base);
1161 kfree(stdu);
1162}
1163
1164
1165
1166/******************************************************************************
1167 * Screen Target Display KMS Functions
1168 *
1169 * These functions are called by the common KMS code in vmwgfx_kms.c
1170 *****************************************************************************/
1171
1172/**
1173 * vmw_kms_stdu_init_display - Initializes a Screen Target based display
1174 *
1175 * @dev_priv: VMW DRM device
1176 *
1177 * This function initialize a Screen Target based display device. It checks
1178 * the capability bits to make sure the underlying hardware can support
1179 * screen targets, and then creates the maximum number of CRTCs, a.k.a Display
1180 * Units, as supported by the display hardware.
1181 *
1182 * RETURNS:
1183 * 0 on success, error code otherwise
1184 */
1185int vmw_kms_stdu_init_display(struct vmw_private *dev_priv)
1186{
1187 struct drm_device *dev = dev_priv->dev;
1188 int i, ret;
1189
1190
1191 /* Do nothing if Screen Target support is turned off */
1192 if (!VMWGFX_ENABLE_SCREEN_TARGET_OTABLE)
1193 return -ENOSYS;
1194
1195 if (!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS))
1196 return -ENOSYS;
1197
1198 ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS);
1199 if (unlikely(ret != 0))
1200 return ret;
1201
1202 ret = drm_mode_create_dirty_info_property(dev);
1203 if (unlikely(ret != 0))
1204 goto err_vblank_cleanup;
1205
1206 dev_priv->active_display_unit = vmw_du_screen_target;
1207
1208 vmw_kms_create_implicit_placement_property(dev_priv, false);
1209
1210 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) {
1211 ret = vmw_stdu_init(dev_priv, i);
1212
1213 if (unlikely(ret != 0)) {
1214 DRM_ERROR("Failed to initialize STDU %d", i);
1215 goto err_vblank_cleanup;
1216 }
1217 }
1218
1219 DRM_INFO("Screen Target Display device initialized\n");
1220
1221 return 0;
1222
1223err_vblank_cleanup:
1224 drm_vblank_cleanup(dev);
1225 return ret;
1226}
1227
1228
1229
1230/**
1231 * vmw_kms_stdu_close_display - Cleans up after vmw_kms_stdu_init_display
1232 *
1233 * @dev_priv: VMW DRM device
1234 *
1235 * Frees up any resources allocated by vmw_kms_stdu_init_display
1236 *
1237 * RETURNS:
1238 * 0 on success
1239 */
1240int vmw_kms_stdu_close_display(struct vmw_private *dev_priv)
1241{
1242 struct drm_device *dev = dev_priv->dev;
1243
1244 drm_vblank_cleanup(dev);
1245
1246 return 0;
1247}
1// SPDX-License-Identifier: GPL-2.0 OR MIT
2/******************************************************************************
3 *
4 * COPYRIGHT (C) 2014-2023 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 "vmwgfx_bo.h"
29#include "vmwgfx_kms.h"
30#include "vmw_surface_cache.h"
31
32#include <drm/drm_atomic.h>
33#include <drm/drm_atomic_helper.h>
34#include <drm/drm_damage_helper.h>
35#include <drm/drm_fourcc.h>
36
37#define vmw_crtc_to_stdu(x) \
38 container_of(x, struct vmw_screen_target_display_unit, base.crtc)
39#define vmw_encoder_to_stdu(x) \
40 container_of(x, struct vmw_screen_target_display_unit, base.encoder)
41#define vmw_connector_to_stdu(x) \
42 container_of(x, struct vmw_screen_target_display_unit, base.connector)
43
44
45
46enum stdu_content_type {
47 SAME_AS_DISPLAY = 0,
48 SEPARATE_SURFACE,
49 SEPARATE_BO
50};
51
52/**
53 * struct vmw_stdu_dirty - closure structure for the update functions
54 *
55 * @base: The base type we derive from. Used by vmw_kms_helper_dirty().
56 * @transfer: Transfer direction for DMA command.
57 * @left: Left side of bounding box.
58 * @right: Right side of bounding box.
59 * @top: Top side of bounding box.
60 * @bottom: Bottom side of bounding box.
61 * @fb_left: Left side of the framebuffer/content bounding box
62 * @fb_top: Top of the framebuffer/content bounding box
63 * @pitch: framebuffer pitch (stride)
64 * @buf: buffer object when DMA-ing between buffer and screen targets.
65 * @sid: Surface ID when copying between surface and screen targets.
66 */
67struct vmw_stdu_dirty {
68 struct vmw_kms_dirty base;
69 s32 left, right, top, bottom;
70 s32 fb_left, fb_top;
71 u32 pitch;
72 union {
73 struct vmw_bo *buf;
74 u32 sid;
75 };
76};
77
78/*
79 * SVGA commands that are used by this code. Please see the device headers
80 * for explanation.
81 */
82struct vmw_stdu_update {
83 SVGA3dCmdHeader header;
84 SVGA3dCmdUpdateGBScreenTarget body;
85};
86
87struct vmw_stdu_dma {
88 SVGA3dCmdHeader header;
89 SVGA3dCmdSurfaceDMA body;
90};
91
92struct vmw_stdu_surface_copy {
93 SVGA3dCmdHeader header;
94 SVGA3dCmdSurfaceCopy body;
95};
96
97struct vmw_stdu_update_gb_image {
98 SVGA3dCmdHeader header;
99 SVGA3dCmdUpdateGBImage body;
100};
101
102/**
103 * struct vmw_screen_target_display_unit
104 *
105 * @base: VMW specific DU structure
106 * @display_srf: surface to be displayed. The dimension of this will always
107 * match the display mode. If the display mode matches
108 * content_vfbs dimensions, then this is a pointer into the
109 * corresponding field in content_vfbs. If not, then this
110 * is a separate buffer to which content_vfbs will blit to.
111 * @content_fb_type: content_fb type
112 * @display_width: display width
113 * @display_height: display height
114 * @defined: true if the current display unit has been initialized
115 * @cpp: Bytes per pixel
116 */
117struct vmw_screen_target_display_unit {
118 struct vmw_display_unit base;
119 struct vmw_surface *display_srf;
120 enum stdu_content_type content_fb_type;
121 s32 display_width, display_height;
122
123 bool defined;
124
125 /* For CPU Blit */
126 unsigned int cpp;
127};
128
129
130
131static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu);
132
133
134
135/******************************************************************************
136 * Screen Target Display Unit CRTC Functions
137 *****************************************************************************/
138
139/**
140 * vmw_stdu_crtc_destroy - cleans up the STDU
141 *
142 * @crtc: used to get a reference to the containing STDU
143 */
144static void vmw_stdu_crtc_destroy(struct drm_crtc *crtc)
145{
146 vmw_stdu_destroy(vmw_crtc_to_stdu(crtc));
147}
148
149/**
150 * vmw_stdu_define_st - Defines a Screen Target
151 *
152 * @dev_priv: VMW DRM device
153 * @stdu: display unit to create a Screen Target for
154 * @mode: The mode to set.
155 * @crtc_x: X coordinate of screen target relative to framebuffer origin.
156 * @crtc_y: Y coordinate of screen target relative to framebuffer origin.
157 *
158 * Creates a STDU that we can used later. This function is called whenever the
159 * framebuffer size changes.
160 *
161 * RETURNs:
162 * 0 on success, error code on failure
163 */
164static int vmw_stdu_define_st(struct vmw_private *dev_priv,
165 struct vmw_screen_target_display_unit *stdu,
166 struct drm_display_mode *mode,
167 int crtc_x, int crtc_y)
168{
169 struct {
170 SVGA3dCmdHeader header;
171 SVGA3dCmdDefineGBScreenTarget body;
172 } *cmd;
173
174 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
175 if (unlikely(cmd == NULL))
176 return -ENOMEM;
177
178 cmd->header.id = SVGA_3D_CMD_DEFINE_GB_SCREENTARGET;
179 cmd->header.size = sizeof(cmd->body);
180
181 cmd->body.stid = stdu->base.unit;
182 cmd->body.width = mode->hdisplay;
183 cmd->body.height = mode->vdisplay;
184 cmd->body.flags = (0 == cmd->body.stid) ? SVGA_STFLAG_PRIMARY : 0;
185 cmd->body.dpi = 0;
186 cmd->body.xRoot = crtc_x;
187 cmd->body.yRoot = crtc_y;
188
189 stdu->base.set_gui_x = cmd->body.xRoot;
190 stdu->base.set_gui_y = cmd->body.yRoot;
191
192 vmw_cmd_commit(dev_priv, sizeof(*cmd));
193
194 stdu->defined = true;
195 stdu->display_width = mode->hdisplay;
196 stdu->display_height = mode->vdisplay;
197
198 return 0;
199}
200
201
202
203/**
204 * vmw_stdu_bind_st - Binds a surface to a Screen Target
205 *
206 * @dev_priv: VMW DRM device
207 * @stdu: display unit affected
208 * @res: Buffer to bind to the screen target. Set to NULL to blank screen.
209 *
210 * Binding a surface to a Screen Target the same as flipping
211 */
212static int vmw_stdu_bind_st(struct vmw_private *dev_priv,
213 struct vmw_screen_target_display_unit *stdu,
214 const struct vmw_resource *res)
215{
216 SVGA3dSurfaceImageId image;
217
218 struct {
219 SVGA3dCmdHeader header;
220 SVGA3dCmdBindGBScreenTarget body;
221 } *cmd;
222
223
224 if (!stdu->defined) {
225 DRM_ERROR("No screen target defined\n");
226 return -EINVAL;
227 }
228
229 /* Set up image using information in vfb */
230 memset(&image, 0, sizeof(image));
231 image.sid = res ? res->id : SVGA3D_INVALID_ID;
232
233 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
234 if (unlikely(cmd == NULL))
235 return -ENOMEM;
236
237 cmd->header.id = SVGA_3D_CMD_BIND_GB_SCREENTARGET;
238 cmd->header.size = sizeof(cmd->body);
239
240 cmd->body.stid = stdu->base.unit;
241 cmd->body.image = image;
242
243 vmw_cmd_commit(dev_priv, sizeof(*cmd));
244
245 return 0;
246}
247
248/**
249 * vmw_stdu_populate_update - populate an UPDATE_GB_SCREENTARGET command with a
250 * bounding box.
251 *
252 * @cmd: Pointer to command stream.
253 * @unit: Screen target unit.
254 * @left: Left side of bounding box.
255 * @right: Right side of bounding box.
256 * @top: Top side of bounding box.
257 * @bottom: Bottom side of bounding box.
258 */
259static void vmw_stdu_populate_update(void *cmd, int unit,
260 s32 left, s32 right, s32 top, s32 bottom)
261{
262 struct vmw_stdu_update *update = cmd;
263
264 update->header.id = SVGA_3D_CMD_UPDATE_GB_SCREENTARGET;
265 update->header.size = sizeof(update->body);
266
267 update->body.stid = unit;
268 update->body.rect.x = left;
269 update->body.rect.y = top;
270 update->body.rect.w = right - left;
271 update->body.rect.h = bottom - top;
272}
273
274/**
275 * vmw_stdu_update_st - Full update of a Screen Target
276 *
277 * @dev_priv: VMW DRM device
278 * @stdu: display unit affected
279 *
280 * This function needs to be called whenever the content of a screen
281 * target has changed completely. Typically as a result of a backing
282 * surface change.
283 *
284 * RETURNS:
285 * 0 on success, error code on failure
286 */
287static int vmw_stdu_update_st(struct vmw_private *dev_priv,
288 struct vmw_screen_target_display_unit *stdu)
289{
290 struct vmw_stdu_update *cmd;
291
292 if (!stdu->defined) {
293 DRM_ERROR("No screen target defined");
294 return -EINVAL;
295 }
296
297 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
298 if (unlikely(cmd == NULL))
299 return -ENOMEM;
300
301 vmw_stdu_populate_update(cmd, stdu->base.unit,
302 0, stdu->display_width,
303 0, stdu->display_height);
304
305 vmw_cmd_commit(dev_priv, sizeof(*cmd));
306
307 return 0;
308}
309
310
311
312/**
313 * vmw_stdu_destroy_st - Destroy a Screen Target
314 *
315 * @dev_priv: VMW DRM device
316 * @stdu: display unit to destroy
317 */
318static int vmw_stdu_destroy_st(struct vmw_private *dev_priv,
319 struct vmw_screen_target_display_unit *stdu)
320{
321 int ret;
322
323 struct {
324 SVGA3dCmdHeader header;
325 SVGA3dCmdDestroyGBScreenTarget body;
326 } *cmd;
327
328
329 /* Nothing to do if not successfully defined */
330 if (unlikely(!stdu->defined))
331 return 0;
332
333 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
334 if (unlikely(cmd == NULL))
335 return -ENOMEM;
336
337 cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SCREENTARGET;
338 cmd->header.size = sizeof(cmd->body);
339
340 cmd->body.stid = stdu->base.unit;
341
342 vmw_cmd_commit(dev_priv, sizeof(*cmd));
343
344 /* Force sync */
345 ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ);
346 if (unlikely(ret != 0))
347 DRM_ERROR("Failed to sync with HW");
348
349 stdu->defined = false;
350 stdu->display_width = 0;
351 stdu->display_height = 0;
352
353 return ret;
354}
355
356
357/**
358 * vmw_stdu_crtc_mode_set_nofb - Updates screen target size
359 *
360 * @crtc: CRTC associated with the screen target
361 *
362 * This function defines/destroys a screen target
363 *
364 */
365static void vmw_stdu_crtc_mode_set_nofb(struct drm_crtc *crtc)
366{
367 struct vmw_private *dev_priv;
368 struct vmw_screen_target_display_unit *stdu;
369 struct drm_connector_state *conn_state;
370 struct vmw_connector_state *vmw_conn_state;
371 int x, y, ret;
372
373 stdu = vmw_crtc_to_stdu(crtc);
374 dev_priv = vmw_priv(crtc->dev);
375 conn_state = stdu->base.connector.state;
376 vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
377
378 if (stdu->defined) {
379 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
380 if (ret)
381 DRM_ERROR("Failed to blank CRTC\n");
382
383 (void) vmw_stdu_update_st(dev_priv, stdu);
384
385 ret = vmw_stdu_destroy_st(dev_priv, stdu);
386 if (ret)
387 DRM_ERROR("Failed to destroy Screen Target\n");
388
389 stdu->content_fb_type = SAME_AS_DISPLAY;
390 }
391
392 if (!crtc->state->enable)
393 return;
394
395 x = vmw_conn_state->gui_x;
396 y = vmw_conn_state->gui_y;
397
398 vmw_svga_enable(dev_priv);
399 ret = vmw_stdu_define_st(dev_priv, stdu, &crtc->mode, x, y);
400
401 if (ret)
402 DRM_ERROR("Failed to define Screen Target of size %dx%d\n",
403 crtc->x, crtc->y);
404}
405
406
407static void vmw_stdu_crtc_helper_prepare(struct drm_crtc *crtc)
408{
409}
410
411static void vmw_stdu_crtc_atomic_enable(struct drm_crtc *crtc,
412 struct drm_atomic_state *state)
413{
414}
415
416static void vmw_stdu_crtc_atomic_disable(struct drm_crtc *crtc,
417 struct drm_atomic_state *state)
418{
419 struct vmw_private *dev_priv;
420 struct vmw_screen_target_display_unit *stdu;
421 int ret;
422
423
424 if (!crtc) {
425 DRM_ERROR("CRTC is NULL\n");
426 return;
427 }
428
429 stdu = vmw_crtc_to_stdu(crtc);
430 dev_priv = vmw_priv(crtc->dev);
431
432 if (stdu->defined) {
433 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
434 if (ret)
435 DRM_ERROR("Failed to blank CRTC\n");
436
437 (void) vmw_stdu_update_st(dev_priv, stdu);
438
439 ret = vmw_stdu_destroy_st(dev_priv, stdu);
440 if (ret)
441 DRM_ERROR("Failed to destroy Screen Target\n");
442
443 stdu->content_fb_type = SAME_AS_DISPLAY;
444 }
445}
446
447/**
448 * vmw_stdu_bo_cpu_clip - Callback to encode a CPU blit
449 *
450 * @dirty: The closure structure.
451 *
452 * This function calculates the bounding box for all the incoming clips.
453 */
454static void vmw_stdu_bo_cpu_clip(struct vmw_kms_dirty *dirty)
455{
456 struct vmw_stdu_dirty *ddirty =
457 container_of(dirty, struct vmw_stdu_dirty, base);
458
459 dirty->num_hits = 1;
460
461 /* Calculate destination bounding box */
462 ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1);
463 ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1);
464 ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2);
465 ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2);
466
467 /*
468 * Calculate content bounding box. We only need the top-left
469 * coordinate because width and height will be the same as the
470 * destination bounding box above
471 */
472 ddirty->fb_left = min_t(s32, ddirty->fb_left, dirty->fb_x);
473 ddirty->fb_top = min_t(s32, ddirty->fb_top, dirty->fb_y);
474}
475
476
477/**
478 * vmw_stdu_bo_cpu_commit - Callback to do a CPU blit from buffer object
479 *
480 * @dirty: The closure structure.
481 *
482 * For the special case when we cannot create a proxy surface in a
483 * 2D VM, we have to do a CPU blit ourselves.
484 */
485static void vmw_stdu_bo_cpu_commit(struct vmw_kms_dirty *dirty)
486{
487 struct vmw_stdu_dirty *ddirty =
488 container_of(dirty, struct vmw_stdu_dirty, base);
489 struct vmw_screen_target_display_unit *stdu =
490 container_of(dirty->unit, typeof(*stdu), base);
491 s32 width, height;
492 s32 src_pitch, dst_pitch;
493 struct ttm_buffer_object *src_bo, *dst_bo;
494 u32 src_offset, dst_offset;
495 struct vmw_diff_cpy diff = VMW_CPU_BLIT_DIFF_INITIALIZER(stdu->cpp);
496
497 if (!dirty->num_hits)
498 return;
499
500 width = ddirty->right - ddirty->left;
501 height = ddirty->bottom - ddirty->top;
502
503 if (width == 0 || height == 0)
504 return;
505
506 /* Assume we are blitting from Guest (bo) to Host (display_srf) */
507 src_pitch = stdu->display_srf->metadata.base_size.width * stdu->cpp;
508 src_bo = &stdu->display_srf->res.guest_memory_bo->tbo;
509 src_offset = ddirty->top * src_pitch + ddirty->left * stdu->cpp;
510
511 dst_pitch = ddirty->pitch;
512 dst_bo = &ddirty->buf->tbo;
513 dst_offset = ddirty->fb_top * dst_pitch + ddirty->fb_left * stdu->cpp;
514
515 (void) vmw_bo_cpu_blit(dst_bo, dst_offset, dst_pitch,
516 src_bo, src_offset, src_pitch,
517 width * stdu->cpp, height, &diff);
518}
519
520/**
521 * vmw_kms_stdu_readback - Perform a readback from a buffer-object backed
522 * framebuffer and the screen target system.
523 *
524 * @dev_priv: Pointer to the device private structure.
525 * @file_priv: Pointer to a struct drm-file identifying the caller. May be
526 * set to NULL, but then @user_fence_rep must also be set to NULL.
527 * @vfb: Pointer to the buffer-object backed framebuffer.
528 * @user_fence_rep: User-space provided structure for fence information.
529 * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
530 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
531 * be NULL.
532 * @num_clips: Number of clip rects in @clips or @vclips.
533 * @increment: Increment to use when looping over @clips or @vclips.
534 * @crtc: If crtc is passed, perform stdu dma on that crtc only.
535 *
536 * If DMA-ing till the screen target system, the function will also notify
537 * the screen target system that a bounding box of the cliprects has been
538 * updated.
539 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
540 * interrupted.
541 */
542int vmw_kms_stdu_readback(struct vmw_private *dev_priv,
543 struct drm_file *file_priv,
544 struct vmw_framebuffer *vfb,
545 struct drm_vmw_fence_rep __user *user_fence_rep,
546 struct drm_clip_rect *clips,
547 struct drm_vmw_rect *vclips,
548 uint32_t num_clips,
549 int increment,
550 struct drm_crtc *crtc)
551{
552 struct vmw_bo *buf =
553 container_of(vfb, struct vmw_framebuffer_bo, base)->buffer;
554 struct vmw_stdu_dirty ddirty;
555 int ret;
556 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
557
558 /*
559 * The GMR domain might seem confusing because it might seem like it should
560 * never happen with screen targets but e.g. the xorg vmware driver issues
561 * CMD_SURFACE_DMA for various pixmap updates which might transition our bo to
562 * a GMR. Instead of forcing another transition we can optimize the readback
563 * by reading directly from the GMR.
564 */
565 vmw_bo_placement_set(buf,
566 VMW_BO_DOMAIN_MOB | VMW_BO_DOMAIN_SYS | VMW_BO_DOMAIN_GMR,
567 VMW_BO_DOMAIN_MOB | VMW_BO_DOMAIN_SYS | VMW_BO_DOMAIN_GMR);
568 ret = vmw_validation_add_bo(&val_ctx, buf);
569 if (ret)
570 return ret;
571
572 ret = vmw_validation_prepare(&val_ctx, NULL, true);
573 if (ret)
574 goto out_unref;
575
576 ddirty.left = ddirty.top = S32_MAX;
577 ddirty.right = ddirty.bottom = S32_MIN;
578 ddirty.fb_left = ddirty.fb_top = S32_MAX;
579 ddirty.pitch = vfb->base.pitches[0];
580 ddirty.buf = buf;
581
582 ddirty.base.fifo_commit = vmw_stdu_bo_cpu_commit;
583 ddirty.base.clip = vmw_stdu_bo_cpu_clip;
584 ddirty.base.fifo_reserve_size = 0;
585
586 ddirty.base.crtc = crtc;
587
588 ret = vmw_kms_helper_dirty(dev_priv, vfb, clips, vclips,
589 0, 0, num_clips, increment, &ddirty.base);
590
591 vmw_kms_helper_validation_finish(dev_priv, file_priv, &val_ctx, NULL,
592 user_fence_rep);
593 return ret;
594
595out_unref:
596 vmw_validation_unref_lists(&val_ctx);
597 return ret;
598}
599
600/**
601 * vmw_kms_stdu_surface_clip - Callback to encode a surface copy command cliprect
602 *
603 * @dirty: The closure structure.
604 *
605 * Encodes a surface copy command cliprect and updates the bounding box
606 * for the copy.
607 */
608static void vmw_kms_stdu_surface_clip(struct vmw_kms_dirty *dirty)
609{
610 struct vmw_stdu_dirty *sdirty =
611 container_of(dirty, struct vmw_stdu_dirty, base);
612 struct vmw_stdu_surface_copy *cmd = dirty->cmd;
613 struct vmw_screen_target_display_unit *stdu =
614 container_of(dirty->unit, typeof(*stdu), base);
615
616 if (sdirty->sid != stdu->display_srf->res.id) {
617 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
618
619 blit += dirty->num_hits;
620 blit->srcx = dirty->fb_x;
621 blit->srcy = dirty->fb_y;
622 blit->x = dirty->unit_x1;
623 blit->y = dirty->unit_y1;
624 blit->d = 1;
625 blit->w = dirty->unit_x2 - dirty->unit_x1;
626 blit->h = dirty->unit_y2 - dirty->unit_y1;
627 }
628
629 dirty->num_hits++;
630
631 /* Destination bounding box */
632 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1);
633 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1);
634 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2);
635 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2);
636}
637
638/**
639 * vmw_kms_stdu_surface_fifo_commit - Callback to fill in and submit a surface
640 * copy command.
641 *
642 * @dirty: The closure structure.
643 *
644 * Fills in the missing fields in a surface copy command, and encodes a screen
645 * target update command.
646 */
647static void vmw_kms_stdu_surface_fifo_commit(struct vmw_kms_dirty *dirty)
648{
649 struct vmw_stdu_dirty *sdirty =
650 container_of(dirty, struct vmw_stdu_dirty, base);
651 struct vmw_screen_target_display_unit *stdu =
652 container_of(dirty->unit, typeof(*stdu), base);
653 struct vmw_stdu_surface_copy *cmd = dirty->cmd;
654 struct vmw_stdu_update *update;
655 size_t blit_size = sizeof(SVGA3dCopyBox) * dirty->num_hits;
656 size_t commit_size;
657
658 if (!dirty->num_hits) {
659 vmw_cmd_commit(dirty->dev_priv, 0);
660 return;
661 }
662
663 if (sdirty->sid != stdu->display_srf->res.id) {
664 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
665
666 cmd->header.id = SVGA_3D_CMD_SURFACE_COPY;
667 cmd->header.size = sizeof(cmd->body) + blit_size;
668 cmd->body.src.sid = sdirty->sid;
669 cmd->body.dest.sid = stdu->display_srf->res.id;
670 update = (struct vmw_stdu_update *) &blit[dirty->num_hits];
671 commit_size = sizeof(*cmd) + blit_size + sizeof(*update);
672 stdu->display_srf->res.res_dirty = true;
673 } else {
674 update = dirty->cmd;
675 commit_size = sizeof(*update);
676 }
677
678 vmw_stdu_populate_update(update, stdu->base.unit, sdirty->left,
679 sdirty->right, sdirty->top, sdirty->bottom);
680
681 vmw_cmd_commit(dirty->dev_priv, commit_size);
682
683 sdirty->left = sdirty->top = S32_MAX;
684 sdirty->right = sdirty->bottom = S32_MIN;
685}
686
687/**
688 * vmw_kms_stdu_surface_dirty - Dirty part of a surface backed framebuffer
689 *
690 * @dev_priv: Pointer to the device private structure.
691 * @framebuffer: Pointer to the surface-buffer backed framebuffer.
692 * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
693 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
694 * be NULL.
695 * @srf: Pointer to surface to blit from. If NULL, the surface attached
696 * to @framebuffer will be used.
697 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates.
698 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates.
699 * @num_clips: Number of clip rects in @clips.
700 * @inc: Increment to use when looping over @clips.
701 * @out_fence: If non-NULL, will return a ref-counted pointer to a
702 * struct vmw_fence_obj. The returned fence pointer may be NULL in which
703 * case the device has already synchronized.
704 * @crtc: If crtc is passed, perform surface dirty on that crtc only.
705 *
706 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
707 * interrupted.
708 */
709int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv,
710 struct vmw_framebuffer *framebuffer,
711 struct drm_clip_rect *clips,
712 struct drm_vmw_rect *vclips,
713 struct vmw_resource *srf,
714 s32 dest_x,
715 s32 dest_y,
716 unsigned num_clips, int inc,
717 struct vmw_fence_obj **out_fence,
718 struct drm_crtc *crtc)
719{
720 struct vmw_framebuffer_surface *vfbs =
721 container_of(framebuffer, typeof(*vfbs), base);
722 struct vmw_stdu_dirty sdirty;
723 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
724 int ret;
725
726 if (!srf)
727 srf = &vfbs->surface->res;
728
729 ret = vmw_validation_add_resource(&val_ctx, srf, 0, VMW_RES_DIRTY_NONE,
730 NULL, NULL);
731 if (ret)
732 return ret;
733
734 ret = vmw_validation_prepare(&val_ctx, &dev_priv->cmdbuf_mutex, true);
735 if (ret)
736 goto out_unref;
737
738 if (vfbs->is_bo_proxy) {
739 ret = vmw_kms_update_proxy(srf, clips, num_clips, inc);
740 if (ret)
741 goto out_finish;
742 }
743
744 sdirty.base.fifo_commit = vmw_kms_stdu_surface_fifo_commit;
745 sdirty.base.clip = vmw_kms_stdu_surface_clip;
746 sdirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_surface_copy) +
747 sizeof(SVGA3dCopyBox) * num_clips +
748 sizeof(struct vmw_stdu_update);
749 sdirty.base.crtc = crtc;
750 sdirty.sid = srf->id;
751 sdirty.left = sdirty.top = S32_MAX;
752 sdirty.right = sdirty.bottom = S32_MIN;
753
754 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
755 dest_x, dest_y, num_clips, inc,
756 &sdirty.base);
757out_finish:
758 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence,
759 NULL);
760
761 return ret;
762
763out_unref:
764 vmw_validation_unref_lists(&val_ctx);
765 return ret;
766}
767
768
769/*
770 * Screen Target CRTC dispatch table
771 */
772static const struct drm_crtc_funcs vmw_stdu_crtc_funcs = {
773 .gamma_set = vmw_du_crtc_gamma_set,
774 .destroy = vmw_stdu_crtc_destroy,
775 .reset = vmw_du_crtc_reset,
776 .atomic_duplicate_state = vmw_du_crtc_duplicate_state,
777 .atomic_destroy_state = vmw_du_crtc_destroy_state,
778 .set_config = drm_atomic_helper_set_config,
779 .page_flip = drm_atomic_helper_page_flip,
780};
781
782
783
784/******************************************************************************
785 * Screen Target Display Unit Encoder Functions
786 *****************************************************************************/
787
788/**
789 * vmw_stdu_encoder_destroy - cleans up the STDU
790 *
791 * @encoder: used the get the containing STDU
792 *
793 * vmwgfx cleans up crtc/encoder/connector all at the same time so technically
794 * this can be a no-op. Nevertheless, it doesn't hurt of have this in case
795 * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't
796 * get called.
797 */
798static void vmw_stdu_encoder_destroy(struct drm_encoder *encoder)
799{
800 vmw_stdu_destroy(vmw_encoder_to_stdu(encoder));
801}
802
803static const struct drm_encoder_funcs vmw_stdu_encoder_funcs = {
804 .destroy = vmw_stdu_encoder_destroy,
805};
806
807
808
809/******************************************************************************
810 * Screen Target Display Unit Connector Functions
811 *****************************************************************************/
812
813/**
814 * vmw_stdu_connector_destroy - cleans up the STDU
815 *
816 * @connector: used to get the containing STDU
817 *
818 * vmwgfx cleans up crtc/encoder/connector all at the same time so technically
819 * this can be a no-op. Nevertheless, it doesn't hurt of have this in case
820 * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't
821 * get called.
822 */
823static void vmw_stdu_connector_destroy(struct drm_connector *connector)
824{
825 vmw_stdu_destroy(vmw_connector_to_stdu(connector));
826}
827
828
829
830static const struct drm_connector_funcs vmw_stdu_connector_funcs = {
831 .dpms = vmw_du_connector_dpms,
832 .detect = vmw_du_connector_detect,
833 .fill_modes = vmw_du_connector_fill_modes,
834 .destroy = vmw_stdu_connector_destroy,
835 .reset = vmw_du_connector_reset,
836 .atomic_duplicate_state = vmw_du_connector_duplicate_state,
837 .atomic_destroy_state = vmw_du_connector_destroy_state,
838};
839
840
841static const struct
842drm_connector_helper_funcs vmw_stdu_connector_helper_funcs = {
843};
844
845
846
847/******************************************************************************
848 * Screen Target Display Plane Functions
849 *****************************************************************************/
850
851
852
853/**
854 * vmw_stdu_primary_plane_cleanup_fb - Unpins the display surface
855 *
856 * @plane: display plane
857 * @old_state: Contains the FB to clean up
858 *
859 * Unpins the display surface
860 *
861 * Returns 0 on success
862 */
863static void
864vmw_stdu_primary_plane_cleanup_fb(struct drm_plane *plane,
865 struct drm_plane_state *old_state)
866{
867 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
868
869 if (vps->surf)
870 WARN_ON(!vps->pinned);
871
872 vmw_du_plane_cleanup_fb(plane, old_state);
873
874 vps->content_fb_type = SAME_AS_DISPLAY;
875 vps->cpp = 0;
876}
877
878
879
880/**
881 * vmw_stdu_primary_plane_prepare_fb - Readies the display surface
882 *
883 * @plane: display plane
884 * @new_state: info on the new plane state, including the FB
885 *
886 * This function allocates a new display surface if the content is
887 * backed by a buffer object. The display surface is pinned here, and it'll
888 * be unpinned in .cleanup_fb()
889 *
890 * Returns 0 on success
891 */
892static int
893vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane,
894 struct drm_plane_state *new_state)
895{
896 struct vmw_private *dev_priv = vmw_priv(plane->dev);
897 struct drm_framebuffer *new_fb = new_state->fb;
898 struct vmw_framebuffer *vfb;
899 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
900 enum stdu_content_type new_content_type;
901 struct vmw_framebuffer_surface *new_vfbs;
902 uint32_t hdisplay = new_state->crtc_w, vdisplay = new_state->crtc_h;
903 int ret;
904
905 /* No FB to prepare */
906 if (!new_fb) {
907 if (vps->surf) {
908 WARN_ON(vps->pinned != 0);
909 vmw_surface_unreference(&vps->surf);
910 }
911
912 return 0;
913 }
914
915 vfb = vmw_framebuffer_to_vfb(new_fb);
916 new_vfbs = (vfb->bo) ? NULL : vmw_framebuffer_to_vfbs(new_fb);
917
918 if (new_vfbs &&
919 new_vfbs->surface->metadata.base_size.width == hdisplay &&
920 new_vfbs->surface->metadata.base_size.height == vdisplay)
921 new_content_type = SAME_AS_DISPLAY;
922 else if (vfb->bo)
923 new_content_type = SEPARATE_BO;
924 else
925 new_content_type = SEPARATE_SURFACE;
926
927 if (new_content_type != SAME_AS_DISPLAY) {
928 struct vmw_surface_metadata metadata = {0};
929
930 /*
931 * If content buffer is a buffer object, then we have to
932 * construct surface info
933 */
934 if (new_content_type == SEPARATE_BO) {
935
936 switch (new_fb->format->cpp[0]*8) {
937 case 32:
938 metadata.format = SVGA3D_X8R8G8B8;
939 break;
940
941 case 16:
942 metadata.format = SVGA3D_R5G6B5;
943 break;
944
945 case 8:
946 metadata.format = SVGA3D_P8;
947 break;
948
949 default:
950 DRM_ERROR("Invalid format\n");
951 return -EINVAL;
952 }
953
954 metadata.mip_levels[0] = 1;
955 metadata.num_sizes = 1;
956 metadata.scanout = true;
957 } else {
958 metadata = new_vfbs->surface->metadata;
959 }
960
961 metadata.base_size.width = hdisplay;
962 metadata.base_size.height = vdisplay;
963 metadata.base_size.depth = 1;
964
965 if (vps->surf) {
966 struct drm_vmw_size cur_base_size =
967 vps->surf->metadata.base_size;
968
969 if (cur_base_size.width != metadata.base_size.width ||
970 cur_base_size.height != metadata.base_size.height ||
971 vps->surf->metadata.format != metadata.format) {
972 WARN_ON(vps->pinned != 0);
973 vmw_surface_unreference(&vps->surf);
974 }
975
976 }
977
978 if (!vps->surf) {
979 ret = vmw_gb_surface_define(dev_priv, &metadata,
980 &vps->surf);
981 if (ret != 0) {
982 DRM_ERROR("Couldn't allocate STDU surface.\n");
983 return ret;
984 }
985 }
986 } else {
987 /*
988 * prepare_fb and clean_fb should only take care of pinning
989 * and unpinning. References are tracked by state objects.
990 * The only time we add a reference in prepare_fb is if the
991 * state object doesn't have a reference to begin with
992 */
993 if (vps->surf) {
994 WARN_ON(vps->pinned != 0);
995 vmw_surface_unreference(&vps->surf);
996 }
997
998 vps->surf = vmw_surface_reference(new_vfbs->surface);
999 }
1000
1001 if (vps->surf) {
1002
1003 /* Pin new surface before flipping */
1004 ret = vmw_resource_pin(&vps->surf->res, false);
1005 if (ret)
1006 goto out_srf_unref;
1007
1008 vps->pinned++;
1009 }
1010
1011 vps->content_fb_type = new_content_type;
1012
1013 /*
1014 * This should only happen if the buffer object is too large to create a
1015 * proxy surface for.
1016 */
1017 if (vps->content_fb_type == SEPARATE_BO)
1018 vps->cpp = new_fb->pitches[0] / new_fb->width;
1019
1020 return 0;
1021
1022out_srf_unref:
1023 vmw_surface_unreference(&vps->surf);
1024 return ret;
1025}
1026
1027static uint32_t vmw_stdu_bo_fifo_size_cpu(struct vmw_du_update_plane *update,
1028 uint32_t num_hits)
1029{
1030 return sizeof(struct vmw_stdu_update_gb_image) +
1031 sizeof(struct vmw_stdu_update);
1032}
1033
1034static uint32_t vmw_stdu_bo_pre_clip_cpu(struct vmw_du_update_plane *update,
1035 void *cmd, uint32_t num_hits)
1036{
1037 struct vmw_du_update_plane_buffer *bo_update =
1038 container_of(update, typeof(*bo_update), base);
1039
1040 bo_update->fb_left = INT_MAX;
1041 bo_update->fb_top = INT_MAX;
1042
1043 return 0;
1044}
1045
1046static uint32_t vmw_stdu_bo_clip_cpu(struct vmw_du_update_plane *update,
1047 void *cmd, struct drm_rect *clip,
1048 uint32_t fb_x, uint32_t fb_y)
1049{
1050 struct vmw_du_update_plane_buffer *bo_update =
1051 container_of(update, typeof(*bo_update), base);
1052
1053 bo_update->fb_left = min_t(int, bo_update->fb_left, fb_x);
1054 bo_update->fb_top = min_t(int, bo_update->fb_top, fb_y);
1055
1056 return 0;
1057}
1058
1059static uint32_t
1060vmw_stdu_bo_populate_update_cpu(struct vmw_du_update_plane *update, void *cmd,
1061 struct drm_rect *bb)
1062{
1063 struct vmw_du_update_plane_buffer *bo_update;
1064 struct vmw_screen_target_display_unit *stdu;
1065 struct vmw_framebuffer_bo *vfbbo;
1066 struct vmw_diff_cpy diff = VMW_CPU_BLIT_DIFF_INITIALIZER(0);
1067 struct vmw_stdu_update_gb_image *cmd_img = cmd;
1068 struct vmw_stdu_update *cmd_update;
1069 struct ttm_buffer_object *src_bo, *dst_bo;
1070 u32 src_offset, dst_offset;
1071 s32 src_pitch, dst_pitch;
1072 s32 width, height;
1073
1074 bo_update = container_of(update, typeof(*bo_update), base);
1075 stdu = container_of(update->du, typeof(*stdu), base);
1076 vfbbo = container_of(update->vfb, typeof(*vfbbo), base);
1077
1078 width = bb->x2 - bb->x1;
1079 height = bb->y2 - bb->y1;
1080
1081 diff.cpp = stdu->cpp;
1082
1083 dst_bo = &stdu->display_srf->res.guest_memory_bo->tbo;
1084 dst_pitch = stdu->display_srf->metadata.base_size.width * stdu->cpp;
1085 dst_offset = bb->y1 * dst_pitch + bb->x1 * stdu->cpp;
1086
1087 src_bo = &vfbbo->buffer->tbo;
1088 src_pitch = update->vfb->base.pitches[0];
1089 src_offset = bo_update->fb_top * src_pitch + bo_update->fb_left *
1090 stdu->cpp;
1091
1092 (void) vmw_bo_cpu_blit(dst_bo, dst_offset, dst_pitch, src_bo,
1093 src_offset, src_pitch, width * stdu->cpp, height,
1094 &diff);
1095
1096 if (drm_rect_visible(&diff.rect)) {
1097 SVGA3dBox *box = &cmd_img->body.box;
1098
1099 cmd_img->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
1100 cmd_img->header.size = sizeof(cmd_img->body);
1101 cmd_img->body.image.sid = stdu->display_srf->res.id;
1102 cmd_img->body.image.face = 0;
1103 cmd_img->body.image.mipmap = 0;
1104
1105 box->x = diff.rect.x1;
1106 box->y = diff.rect.y1;
1107 box->z = 0;
1108 box->w = drm_rect_width(&diff.rect);
1109 box->h = drm_rect_height(&diff.rect);
1110 box->d = 1;
1111
1112 cmd_update = (struct vmw_stdu_update *)&cmd_img[1];
1113 vmw_stdu_populate_update(cmd_update, stdu->base.unit,
1114 diff.rect.x1, diff.rect.x2,
1115 diff.rect.y1, diff.rect.y2);
1116
1117 return sizeof(*cmd_img) + sizeof(*cmd_update);
1118 }
1119
1120 return 0;
1121}
1122
1123/**
1124 * vmw_stdu_plane_update_bo - Update display unit for bo backed fb.
1125 * @dev_priv: device private.
1126 * @plane: plane state.
1127 * @old_state: old plane state.
1128 * @vfb: framebuffer which is blitted to display unit.
1129 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj.
1130 * The returned fence pointer may be NULL in which case the device
1131 * has already synchronized.
1132 *
1133 * Return: 0 on success or a negative error code on failure.
1134 */
1135static int vmw_stdu_plane_update_bo(struct vmw_private *dev_priv,
1136 struct drm_plane *plane,
1137 struct drm_plane_state *old_state,
1138 struct vmw_framebuffer *vfb,
1139 struct vmw_fence_obj **out_fence)
1140{
1141 struct vmw_du_update_plane_buffer bo_update;
1142
1143 memset(&bo_update, 0, sizeof(struct vmw_du_update_plane_buffer));
1144 bo_update.base.plane = plane;
1145 bo_update.base.old_state = old_state;
1146 bo_update.base.dev_priv = dev_priv;
1147 bo_update.base.du = vmw_crtc_to_du(plane->state->crtc);
1148 bo_update.base.vfb = vfb;
1149 bo_update.base.out_fence = out_fence;
1150 bo_update.base.mutex = NULL;
1151 bo_update.base.intr = false;
1152
1153 bo_update.base.calc_fifo_size = vmw_stdu_bo_fifo_size_cpu;
1154 bo_update.base.pre_clip = vmw_stdu_bo_pre_clip_cpu;
1155 bo_update.base.clip = vmw_stdu_bo_clip_cpu;
1156 bo_update.base.post_clip = vmw_stdu_bo_populate_update_cpu;
1157
1158 return vmw_du_helper_plane_update(&bo_update.base);
1159}
1160
1161static uint32_t
1162vmw_stdu_surface_fifo_size_same_display(struct vmw_du_update_plane *update,
1163 uint32_t num_hits)
1164{
1165 struct vmw_framebuffer_surface *vfbs;
1166 uint32_t size = 0;
1167
1168 vfbs = container_of(update->vfb, typeof(*vfbs), base);
1169
1170 if (vfbs->is_bo_proxy)
1171 size += sizeof(struct vmw_stdu_update_gb_image) * num_hits;
1172
1173 size += sizeof(struct vmw_stdu_update);
1174
1175 return size;
1176}
1177
1178static uint32_t vmw_stdu_surface_fifo_size(struct vmw_du_update_plane *update,
1179 uint32_t num_hits)
1180{
1181 struct vmw_framebuffer_surface *vfbs;
1182 uint32_t size = 0;
1183
1184 vfbs = container_of(update->vfb, typeof(*vfbs), base);
1185
1186 if (vfbs->is_bo_proxy)
1187 size += sizeof(struct vmw_stdu_update_gb_image) * num_hits;
1188
1189 size += sizeof(struct vmw_stdu_surface_copy) + sizeof(SVGA3dCopyBox) *
1190 num_hits + sizeof(struct vmw_stdu_update);
1191
1192 return size;
1193}
1194
1195static uint32_t
1196vmw_stdu_surface_update_proxy(struct vmw_du_update_plane *update, void *cmd)
1197{
1198 struct vmw_framebuffer_surface *vfbs;
1199 struct drm_plane_state *state = update->plane->state;
1200 struct drm_plane_state *old_state = update->old_state;
1201 struct vmw_stdu_update_gb_image *cmd_update = cmd;
1202 struct drm_atomic_helper_damage_iter iter;
1203 struct drm_rect clip;
1204 uint32_t copy_size = 0;
1205
1206 vfbs = container_of(update->vfb, typeof(*vfbs), base);
1207
1208 /*
1209 * proxy surface is special where a buffer object type fb is wrapped
1210 * in a surface and need an update gb image command to sync with device.
1211 */
1212 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
1213 drm_atomic_for_each_plane_damage(&iter, &clip) {
1214 SVGA3dBox *box = &cmd_update->body.box;
1215
1216 cmd_update->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
1217 cmd_update->header.size = sizeof(cmd_update->body);
1218 cmd_update->body.image.sid = vfbs->surface->res.id;
1219 cmd_update->body.image.face = 0;
1220 cmd_update->body.image.mipmap = 0;
1221
1222 box->x = clip.x1;
1223 box->y = clip.y1;
1224 box->z = 0;
1225 box->w = drm_rect_width(&clip);
1226 box->h = drm_rect_height(&clip);
1227 box->d = 1;
1228
1229 copy_size += sizeof(*cmd_update);
1230 cmd_update++;
1231 }
1232
1233 return copy_size;
1234}
1235
1236static uint32_t
1237vmw_stdu_surface_populate_copy(struct vmw_du_update_plane *update, void *cmd,
1238 uint32_t num_hits)
1239{
1240 struct vmw_screen_target_display_unit *stdu;
1241 struct vmw_framebuffer_surface *vfbs;
1242 struct vmw_stdu_surface_copy *cmd_copy = cmd;
1243
1244 stdu = container_of(update->du, typeof(*stdu), base);
1245 vfbs = container_of(update->vfb, typeof(*vfbs), base);
1246
1247 cmd_copy->header.id = SVGA_3D_CMD_SURFACE_COPY;
1248 cmd_copy->header.size = sizeof(cmd_copy->body) + sizeof(SVGA3dCopyBox) *
1249 num_hits;
1250 cmd_copy->body.src.sid = vfbs->surface->res.id;
1251 cmd_copy->body.dest.sid = stdu->display_srf->res.id;
1252
1253 return sizeof(*cmd_copy);
1254}
1255
1256static uint32_t
1257vmw_stdu_surface_populate_clip(struct vmw_du_update_plane *update, void *cmd,
1258 struct drm_rect *clip, uint32_t fb_x,
1259 uint32_t fb_y)
1260{
1261 struct SVGA3dCopyBox *box = cmd;
1262
1263 box->srcx = fb_x;
1264 box->srcy = fb_y;
1265 box->srcz = 0;
1266 box->x = clip->x1;
1267 box->y = clip->y1;
1268 box->z = 0;
1269 box->w = drm_rect_width(clip);
1270 box->h = drm_rect_height(clip);
1271 box->d = 1;
1272
1273 return sizeof(*box);
1274}
1275
1276static uint32_t
1277vmw_stdu_surface_populate_update(struct vmw_du_update_plane *update, void *cmd,
1278 struct drm_rect *bb)
1279{
1280 vmw_stdu_populate_update(cmd, update->du->unit, bb->x1, bb->x2, bb->y1,
1281 bb->y2);
1282
1283 return sizeof(struct vmw_stdu_update);
1284}
1285
1286/**
1287 * vmw_stdu_plane_update_surface - Update display unit for surface backed fb
1288 * @dev_priv: Device private
1289 * @plane: Plane state
1290 * @old_state: Old plane state
1291 * @vfb: Framebuffer which is blitted to display unit
1292 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj.
1293 * The returned fence pointer may be NULL in which case the device
1294 * has already synchronized.
1295 *
1296 * Return: 0 on success or a negative error code on failure.
1297 */
1298static int vmw_stdu_plane_update_surface(struct vmw_private *dev_priv,
1299 struct drm_plane *plane,
1300 struct drm_plane_state *old_state,
1301 struct vmw_framebuffer *vfb,
1302 struct vmw_fence_obj **out_fence)
1303{
1304 struct vmw_du_update_plane srf_update;
1305 struct vmw_screen_target_display_unit *stdu;
1306 struct vmw_framebuffer_surface *vfbs;
1307
1308 stdu = vmw_crtc_to_stdu(plane->state->crtc);
1309 vfbs = container_of(vfb, typeof(*vfbs), base);
1310
1311 memset(&srf_update, 0, sizeof(struct vmw_du_update_plane));
1312 srf_update.plane = plane;
1313 srf_update.old_state = old_state;
1314 srf_update.dev_priv = dev_priv;
1315 srf_update.du = vmw_crtc_to_du(plane->state->crtc);
1316 srf_update.vfb = vfb;
1317 srf_update.out_fence = out_fence;
1318 srf_update.mutex = &dev_priv->cmdbuf_mutex;
1319 srf_update.intr = true;
1320
1321 if (vfbs->is_bo_proxy)
1322 srf_update.post_prepare = vmw_stdu_surface_update_proxy;
1323
1324 if (vfbs->surface->res.id != stdu->display_srf->res.id) {
1325 srf_update.calc_fifo_size = vmw_stdu_surface_fifo_size;
1326 srf_update.pre_clip = vmw_stdu_surface_populate_copy;
1327 srf_update.clip = vmw_stdu_surface_populate_clip;
1328 } else {
1329 srf_update.calc_fifo_size =
1330 vmw_stdu_surface_fifo_size_same_display;
1331 }
1332
1333 srf_update.post_clip = vmw_stdu_surface_populate_update;
1334
1335 return vmw_du_helper_plane_update(&srf_update);
1336}
1337
1338/**
1339 * vmw_stdu_primary_plane_atomic_update - formally switches STDU to new plane
1340 * @plane: display plane
1341 * @state: Only used to get crtc info
1342 *
1343 * Formally update stdu->display_srf to the new plane, and bind the new
1344 * plane STDU. This function is called during the commit phase when
1345 * all the preparation have been done and all the configurations have
1346 * been checked.
1347 */
1348static void
1349vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane,
1350 struct drm_atomic_state *state)
1351{
1352 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane);
1353 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane);
1354 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
1355 struct drm_crtc *crtc = new_state->crtc;
1356 struct vmw_screen_target_display_unit *stdu;
1357 struct vmw_fence_obj *fence = NULL;
1358 struct vmw_private *dev_priv;
1359 int ret;
1360
1361 /* If case of device error, maintain consistent atomic state */
1362 if (crtc && new_state->fb) {
1363 struct vmw_framebuffer *vfb =
1364 vmw_framebuffer_to_vfb(new_state->fb);
1365 stdu = vmw_crtc_to_stdu(crtc);
1366 dev_priv = vmw_priv(crtc->dev);
1367
1368 stdu->display_srf = vps->surf;
1369 stdu->content_fb_type = vps->content_fb_type;
1370 stdu->cpp = vps->cpp;
1371
1372 ret = vmw_stdu_bind_st(dev_priv, stdu, &stdu->display_srf->res);
1373 if (ret)
1374 DRM_ERROR("Failed to bind surface to STDU.\n");
1375
1376 if (vfb->bo)
1377 ret = vmw_stdu_plane_update_bo(dev_priv, plane,
1378 old_state, vfb, &fence);
1379 else
1380 ret = vmw_stdu_plane_update_surface(dev_priv, plane,
1381 old_state, vfb,
1382 &fence);
1383 if (ret)
1384 DRM_ERROR("Failed to update STDU.\n");
1385 } else {
1386 crtc = old_state->crtc;
1387 stdu = vmw_crtc_to_stdu(crtc);
1388 dev_priv = vmw_priv(crtc->dev);
1389
1390 /* Blank STDU when fb and crtc are NULL */
1391 if (!stdu->defined)
1392 return;
1393
1394 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
1395 if (ret)
1396 DRM_ERROR("Failed to blank STDU\n");
1397
1398 ret = vmw_stdu_update_st(dev_priv, stdu);
1399 if (ret)
1400 DRM_ERROR("Failed to update STDU.\n");
1401
1402 return;
1403 }
1404
1405 if (fence)
1406 vmw_fence_obj_unreference(&fence);
1407}
1408
1409
1410static const struct drm_plane_funcs vmw_stdu_plane_funcs = {
1411 .update_plane = drm_atomic_helper_update_plane,
1412 .disable_plane = drm_atomic_helper_disable_plane,
1413 .destroy = vmw_du_primary_plane_destroy,
1414 .reset = vmw_du_plane_reset,
1415 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
1416 .atomic_destroy_state = vmw_du_plane_destroy_state,
1417};
1418
1419static const struct drm_plane_funcs vmw_stdu_cursor_funcs = {
1420 .update_plane = drm_atomic_helper_update_plane,
1421 .disable_plane = drm_atomic_helper_disable_plane,
1422 .destroy = vmw_du_cursor_plane_destroy,
1423 .reset = vmw_du_plane_reset,
1424 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
1425 .atomic_destroy_state = vmw_du_plane_destroy_state,
1426};
1427
1428
1429/*
1430 * Atomic Helpers
1431 */
1432static const struct
1433drm_plane_helper_funcs vmw_stdu_cursor_plane_helper_funcs = {
1434 .atomic_check = vmw_du_cursor_plane_atomic_check,
1435 .atomic_update = vmw_du_cursor_plane_atomic_update,
1436 .prepare_fb = vmw_du_cursor_plane_prepare_fb,
1437 .cleanup_fb = vmw_du_cursor_plane_cleanup_fb,
1438};
1439
1440static const struct
1441drm_plane_helper_funcs vmw_stdu_primary_plane_helper_funcs = {
1442 .atomic_check = vmw_du_primary_plane_atomic_check,
1443 .atomic_update = vmw_stdu_primary_plane_atomic_update,
1444 .prepare_fb = vmw_stdu_primary_plane_prepare_fb,
1445 .cleanup_fb = vmw_stdu_primary_plane_cleanup_fb,
1446};
1447
1448static const struct drm_crtc_helper_funcs vmw_stdu_crtc_helper_funcs = {
1449 .prepare = vmw_stdu_crtc_helper_prepare,
1450 .mode_set_nofb = vmw_stdu_crtc_mode_set_nofb,
1451 .atomic_check = vmw_du_crtc_atomic_check,
1452 .atomic_begin = vmw_du_crtc_atomic_begin,
1453 .atomic_flush = vmw_du_crtc_atomic_flush,
1454 .atomic_enable = vmw_stdu_crtc_atomic_enable,
1455 .atomic_disable = vmw_stdu_crtc_atomic_disable,
1456};
1457
1458
1459/**
1460 * vmw_stdu_init - Sets up a Screen Target Display Unit
1461 *
1462 * @dev_priv: VMW DRM device
1463 * @unit: unit number range from 0 to VMWGFX_NUM_DISPLAY_UNITS
1464 *
1465 * This function is called once per CRTC, and allocates one Screen Target
1466 * display unit to represent that CRTC. Since the SVGA device does not separate
1467 * out encoder and connector, they are represented as part of the STDU as well.
1468 */
1469static int vmw_stdu_init(struct vmw_private *dev_priv, unsigned unit)
1470{
1471 struct vmw_screen_target_display_unit *stdu;
1472 struct drm_device *dev = &dev_priv->drm;
1473 struct drm_connector *connector;
1474 struct drm_encoder *encoder;
1475 struct drm_plane *primary;
1476 struct vmw_cursor_plane *cursor;
1477 struct drm_crtc *crtc;
1478 int ret;
1479
1480 stdu = kzalloc(sizeof(*stdu), GFP_KERNEL);
1481 if (!stdu)
1482 return -ENOMEM;
1483
1484 stdu->base.unit = unit;
1485 crtc = &stdu->base.crtc;
1486 encoder = &stdu->base.encoder;
1487 connector = &stdu->base.connector;
1488 primary = &stdu->base.primary;
1489 cursor = &stdu->base.cursor;
1490
1491 stdu->base.pref_active = (unit == 0);
1492 stdu->base.pref_width = dev_priv->initial_width;
1493 stdu->base.pref_height = dev_priv->initial_height;
1494 stdu->base.is_implicit = false;
1495
1496 /* Initialize primary plane */
1497 ret = drm_universal_plane_init(dev, primary,
1498 0, &vmw_stdu_plane_funcs,
1499 vmw_primary_plane_formats,
1500 ARRAY_SIZE(vmw_primary_plane_formats),
1501 NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
1502 if (ret) {
1503 DRM_ERROR("Failed to initialize primary plane");
1504 goto err_free;
1505 }
1506
1507 drm_plane_helper_add(primary, &vmw_stdu_primary_plane_helper_funcs);
1508 drm_plane_enable_fb_damage_clips(primary);
1509
1510 /* Initialize cursor plane */
1511 ret = drm_universal_plane_init(dev, &cursor->base,
1512 0, &vmw_stdu_cursor_funcs,
1513 vmw_cursor_plane_formats,
1514 ARRAY_SIZE(vmw_cursor_plane_formats),
1515 NULL, DRM_PLANE_TYPE_CURSOR, NULL);
1516 if (ret) {
1517 DRM_ERROR("Failed to initialize cursor plane");
1518 drm_plane_cleanup(&stdu->base.primary);
1519 goto err_free;
1520 }
1521
1522 drm_plane_helper_add(&cursor->base, &vmw_stdu_cursor_plane_helper_funcs);
1523
1524 ret = drm_connector_init(dev, connector, &vmw_stdu_connector_funcs,
1525 DRM_MODE_CONNECTOR_VIRTUAL);
1526 if (ret) {
1527 DRM_ERROR("Failed to initialize connector\n");
1528 goto err_free;
1529 }
1530
1531 drm_connector_helper_add(connector, &vmw_stdu_connector_helper_funcs);
1532 connector->status = vmw_du_connector_detect(connector, false);
1533
1534 ret = drm_encoder_init(dev, encoder, &vmw_stdu_encoder_funcs,
1535 DRM_MODE_ENCODER_VIRTUAL, NULL);
1536 if (ret) {
1537 DRM_ERROR("Failed to initialize encoder\n");
1538 goto err_free_connector;
1539 }
1540
1541 (void) drm_connector_attach_encoder(connector, encoder);
1542 encoder->possible_crtcs = (1 << unit);
1543 encoder->possible_clones = 0;
1544
1545 ret = drm_connector_register(connector);
1546 if (ret) {
1547 DRM_ERROR("Failed to register connector\n");
1548 goto err_free_encoder;
1549 }
1550
1551 ret = drm_crtc_init_with_planes(dev, crtc, primary,
1552 &cursor->base,
1553 &vmw_stdu_crtc_funcs, NULL);
1554 if (ret) {
1555 DRM_ERROR("Failed to initialize CRTC\n");
1556 goto err_free_unregister;
1557 }
1558
1559 drm_crtc_helper_add(crtc, &vmw_stdu_crtc_helper_funcs);
1560
1561 drm_mode_crtc_set_gamma_size(crtc, 256);
1562
1563 drm_object_attach_property(&connector->base,
1564 dev_priv->hotplug_mode_update_property, 1);
1565 drm_object_attach_property(&connector->base,
1566 dev->mode_config.suggested_x_property, 0);
1567 drm_object_attach_property(&connector->base,
1568 dev->mode_config.suggested_y_property, 0);
1569 return 0;
1570
1571err_free_unregister:
1572 drm_connector_unregister(connector);
1573err_free_encoder:
1574 drm_encoder_cleanup(encoder);
1575err_free_connector:
1576 drm_connector_cleanup(connector);
1577err_free:
1578 kfree(stdu);
1579 return ret;
1580}
1581
1582
1583
1584/**
1585 * vmw_stdu_destroy - Cleans up a vmw_screen_target_display_unit
1586 *
1587 * @stdu: Screen Target Display Unit to be destroyed
1588 *
1589 * Clean up after vmw_stdu_init
1590 */
1591static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu)
1592{
1593 vmw_du_cleanup(&stdu->base);
1594 kfree(stdu);
1595}
1596
1597
1598
1599/******************************************************************************
1600 * Screen Target Display KMS Functions
1601 *
1602 * These functions are called by the common KMS code in vmwgfx_kms.c
1603 *****************************************************************************/
1604
1605/**
1606 * vmw_kms_stdu_init_display - Initializes a Screen Target based display
1607 *
1608 * @dev_priv: VMW DRM device
1609 *
1610 * This function initialize a Screen Target based display device. It checks
1611 * the capability bits to make sure the underlying hardware can support
1612 * screen targets, and then creates the maximum number of CRTCs, a.k.a Display
1613 * Units, as supported by the display hardware.
1614 *
1615 * RETURNS:
1616 * 0 on success, error code otherwise
1617 */
1618int vmw_kms_stdu_init_display(struct vmw_private *dev_priv)
1619{
1620 struct drm_device *dev = &dev_priv->drm;
1621 int i, ret;
1622
1623
1624 /* Do nothing if there's no support for MOBs */
1625 if (!dev_priv->has_mob)
1626 return -ENOSYS;
1627
1628 if (!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS))
1629 return -ENOSYS;
1630
1631 dev_priv->active_display_unit = vmw_du_screen_target;
1632
1633 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) {
1634 ret = vmw_stdu_init(dev_priv, i);
1635
1636 if (unlikely(ret != 0)) {
1637 drm_err(&dev_priv->drm,
1638 "Failed to initialize STDU %d", i);
1639 return ret;
1640 }
1641 }
1642
1643 drm_mode_config_reset(dev);
1644
1645 return 0;
1646}