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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 * @left: Left side of bounding box.
57 * @right: Right side of bounding box.
58 * @top: Top side of bounding box.
59 * @bottom: Bottom side of bounding box.
60 * @fb_left: Left side of the framebuffer/content bounding box
61 * @fb_top: Top of the framebuffer/content bounding box
62 * @pitch: framebuffer pitch (stride)
63 * @buf: buffer object when DMA-ing between buffer and screen targets.
64 * @sid: Surface ID when copying between surface and screen targets.
65 */
66struct vmw_stdu_dirty {
67 struct vmw_kms_dirty base;
68 s32 left, right, top, bottom;
69 s32 fb_left, fb_top;
70 u32 pitch;
71 union {
72 struct vmw_bo *buf;
73 u32 sid;
74 };
75};
76
77/*
78 * SVGA commands that are used by this code. Please see the device headers
79 * for explanation.
80 */
81struct vmw_stdu_update {
82 SVGA3dCmdHeader header;
83 SVGA3dCmdUpdateGBScreenTarget body;
84};
85
86struct vmw_stdu_dma {
87 SVGA3dCmdHeader header;
88 SVGA3dCmdSurfaceDMA body;
89};
90
91struct vmw_stdu_surface_copy {
92 SVGA3dCmdHeader header;
93 SVGA3dCmdSurfaceCopy body;
94};
95
96struct vmw_stdu_update_gb_image {
97 SVGA3dCmdHeader header;
98 SVGA3dCmdUpdateGBImage body;
99};
100
101/**
102 * struct vmw_screen_target_display_unit - conglomerated STDU structure
103 *
104 * @base: VMW specific DU structure
105 * @display_srf: surface to be displayed. The dimension of this will always
106 * match the display mode. If the display mode matches
107 * content_vfbs dimensions, then this is a pointer into the
108 * corresponding field in content_vfbs. If not, then this
109 * is a separate buffer to which content_vfbs will blit to.
110 * @content_fb_type: content_fb type
111 * @display_width: display width
112 * @display_height: display height
113 * @defined: true if the current display unit has been initialized
114 * @cpp: Bytes per pixel
115 */
116struct vmw_screen_target_display_unit {
117 struct vmw_display_unit base;
118 struct vmw_surface *display_srf;
119 enum stdu_content_type content_fb_type;
120 s32 display_width, display_height;
121
122 bool defined;
123
124 /* For CPU Blit */
125 unsigned int cpp;
126};
127
128
129
130static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu);
131
132
133
134/******************************************************************************
135 * Screen Target Display Unit CRTC Functions
136 *****************************************************************************/
137
138/**
139 * vmw_stdu_crtc_destroy - cleans up the STDU
140 *
141 * @crtc: used to get a reference to the containing STDU
142 */
143static void vmw_stdu_crtc_destroy(struct drm_crtc *crtc)
144{
145 vmw_stdu_destroy(vmw_crtc_to_stdu(crtc));
146}
147
148/**
149 * vmw_stdu_define_st - Defines a Screen Target
150 *
151 * @dev_priv: VMW DRM device
152 * @stdu: display unit to create a Screen Target for
153 * @mode: The mode to set.
154 * @crtc_x: X coordinate of screen target relative to framebuffer origin.
155 * @crtc_y: Y coordinate of screen target relative to framebuffer origin.
156 *
157 * Creates a STDU that we can used later. This function is called whenever the
158 * framebuffer size changes.
159 *
160 * RETURNs:
161 * 0 on success, error code on failure
162 */
163static int vmw_stdu_define_st(struct vmw_private *dev_priv,
164 struct vmw_screen_target_display_unit *stdu,
165 struct drm_display_mode *mode,
166 int crtc_x, int crtc_y)
167{
168 struct {
169 SVGA3dCmdHeader header;
170 SVGA3dCmdDefineGBScreenTarget body;
171 } *cmd;
172
173 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
174 if (unlikely(cmd == NULL))
175 return -ENOMEM;
176
177 cmd->header.id = SVGA_3D_CMD_DEFINE_GB_SCREENTARGET;
178 cmd->header.size = sizeof(cmd->body);
179
180 cmd->body.stid = stdu->base.unit;
181 cmd->body.width = mode->hdisplay;
182 cmd->body.height = mode->vdisplay;
183 cmd->body.flags = (0 == cmd->body.stid) ? SVGA_STFLAG_PRIMARY : 0;
184 cmd->body.dpi = 0;
185 cmd->body.xRoot = crtc_x;
186 cmd->body.yRoot = crtc_y;
187
188 stdu->base.set_gui_x = cmd->body.xRoot;
189 stdu->base.set_gui_y = cmd->body.yRoot;
190
191 vmw_cmd_commit(dev_priv, sizeof(*cmd));
192
193 stdu->defined = true;
194 stdu->display_width = mode->hdisplay;
195 stdu->display_height = mode->vdisplay;
196
197 return 0;
198}
199
200
201
202/**
203 * vmw_stdu_bind_st - Binds a surface to a Screen Target
204 *
205 * @dev_priv: VMW DRM device
206 * @stdu: display unit affected
207 * @res: Buffer to bind to the screen target. Set to NULL to blank screen.
208 *
209 * Binding a surface to a Screen Target the same as flipping
210 *
211 * Returns: %0 on success or -errno code on failure
212 */
213static int vmw_stdu_bind_st(struct vmw_private *dev_priv,
214 struct vmw_screen_target_display_unit *stdu,
215 const struct vmw_resource *res)
216{
217 SVGA3dSurfaceImageId image;
218
219 struct {
220 SVGA3dCmdHeader header;
221 SVGA3dCmdBindGBScreenTarget body;
222 } *cmd;
223
224
225 if (!stdu->defined) {
226 DRM_ERROR("No screen target defined\n");
227 return -EINVAL;
228 }
229
230 /* Set up image using information in vfb */
231 memset(&image, 0, sizeof(image));
232 image.sid = res ? res->id : SVGA3D_INVALID_ID;
233
234 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
235 if (unlikely(cmd == NULL))
236 return -ENOMEM;
237
238 cmd->header.id = SVGA_3D_CMD_BIND_GB_SCREENTARGET;
239 cmd->header.size = sizeof(cmd->body);
240
241 cmd->body.stid = stdu->base.unit;
242 cmd->body.image = image;
243
244 vmw_cmd_commit(dev_priv, sizeof(*cmd));
245
246 return 0;
247}
248
249/**
250 * vmw_stdu_populate_update - populate an UPDATE_GB_SCREENTARGET command with a
251 * bounding box.
252 *
253 * @cmd: Pointer to command stream.
254 * @unit: Screen target unit.
255 * @left: Left side of bounding box.
256 * @right: Right side of bounding box.
257 * @top: Top side of bounding box.
258 * @bottom: Bottom side of bounding box.
259 */
260static void vmw_stdu_populate_update(void *cmd, int unit,
261 s32 left, s32 right, s32 top, s32 bottom)
262{
263 struct vmw_stdu_update *update = cmd;
264
265 update->header.id = SVGA_3D_CMD_UPDATE_GB_SCREENTARGET;
266 update->header.size = sizeof(update->body);
267
268 update->body.stid = unit;
269 update->body.rect.x = left;
270 update->body.rect.y = top;
271 update->body.rect.w = right - left;
272 update->body.rect.h = bottom - top;
273}
274
275/**
276 * vmw_stdu_update_st - Full update of a Screen Target
277 *
278 * @dev_priv: VMW DRM device
279 * @stdu: display unit affected
280 *
281 * This function needs to be called whenever the content of a screen
282 * target has changed completely. Typically as a result of a backing
283 * surface change.
284 *
285 * RETURNS:
286 * 0 on success, error code on failure
287 */
288static int vmw_stdu_update_st(struct vmw_private *dev_priv,
289 struct vmw_screen_target_display_unit *stdu)
290{
291 struct vmw_stdu_update *cmd;
292
293 if (!stdu->defined) {
294 DRM_ERROR("No screen target defined");
295 return -EINVAL;
296 }
297
298 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
299 if (unlikely(cmd == NULL))
300 return -ENOMEM;
301
302 vmw_stdu_populate_update(cmd, stdu->base.unit,
303 0, stdu->display_width,
304 0, stdu->display_height);
305
306 vmw_cmd_commit(dev_priv, sizeof(*cmd));
307
308 return 0;
309}
310
311
312
313/**
314 * vmw_stdu_destroy_st - Destroy a Screen Target
315 *
316 * @dev_priv: VMW DRM device
317 * @stdu: display unit to destroy
318 *
319 * Returns: %0 on success, negative error code on failure. -ERESTARTSYS if
320 * interrupted.
321 */
322static int vmw_stdu_destroy_st(struct vmw_private *dev_priv,
323 struct vmw_screen_target_display_unit *stdu)
324{
325 int ret;
326
327 struct {
328 SVGA3dCmdHeader header;
329 SVGA3dCmdDestroyGBScreenTarget body;
330 } *cmd;
331
332
333 /* Nothing to do if not successfully defined */
334 if (unlikely(!stdu->defined))
335 return 0;
336
337 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
338 if (unlikely(cmd == NULL))
339 return -ENOMEM;
340
341 cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SCREENTARGET;
342 cmd->header.size = sizeof(cmd->body);
343
344 cmd->body.stid = stdu->base.unit;
345
346 vmw_cmd_commit(dev_priv, sizeof(*cmd));
347
348 /* Force sync */
349 ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ);
350 if (unlikely(ret != 0))
351 DRM_ERROR("Failed to sync with HW");
352
353 stdu->defined = false;
354 stdu->display_width = 0;
355 stdu->display_height = 0;
356
357 return ret;
358}
359
360
361/**
362 * vmw_stdu_crtc_mode_set_nofb - Updates screen target size
363 *
364 * @crtc: CRTC associated with the screen target
365 *
366 * This function defines/destroys a screen target
367 *
368 */
369static void vmw_stdu_crtc_mode_set_nofb(struct drm_crtc *crtc)
370{
371 struct vmw_private *dev_priv;
372 struct vmw_screen_target_display_unit *stdu;
373 struct drm_connector_state *conn_state;
374 struct vmw_connector_state *vmw_conn_state;
375 int x, y, ret;
376
377 stdu = vmw_crtc_to_stdu(crtc);
378 dev_priv = vmw_priv(crtc->dev);
379 conn_state = stdu->base.connector.state;
380 vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
381
382 if (stdu->defined) {
383 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
384 if (ret)
385 DRM_ERROR("Failed to blank CRTC\n");
386
387 (void) vmw_stdu_update_st(dev_priv, stdu);
388
389 ret = vmw_stdu_destroy_st(dev_priv, stdu);
390 if (ret)
391 DRM_ERROR("Failed to destroy Screen Target\n");
392
393 stdu->content_fb_type = SAME_AS_DISPLAY;
394 }
395
396 if (!crtc->state->enable)
397 return;
398
399 x = vmw_conn_state->gui_x;
400 y = vmw_conn_state->gui_y;
401
402 vmw_svga_enable(dev_priv);
403 ret = vmw_stdu_define_st(dev_priv, stdu, &crtc->mode, x, y);
404
405 if (ret)
406 DRM_ERROR("Failed to define Screen Target of size %dx%d\n",
407 crtc->x, crtc->y);
408}
409
410
411static void vmw_stdu_crtc_helper_prepare(struct drm_crtc *crtc)
412{
413}
414
415static void vmw_stdu_crtc_atomic_enable(struct drm_crtc *crtc,
416 struct drm_atomic_state *state)
417{
418}
419
420static void vmw_stdu_crtc_atomic_disable(struct drm_crtc *crtc,
421 struct drm_atomic_state *state)
422{
423 struct vmw_private *dev_priv;
424 struct vmw_screen_target_display_unit *stdu;
425 int ret;
426
427
428 if (!crtc) {
429 DRM_ERROR("CRTC is NULL\n");
430 return;
431 }
432
433 stdu = vmw_crtc_to_stdu(crtc);
434 dev_priv = vmw_priv(crtc->dev);
435
436 if (stdu->defined) {
437 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
438 if (ret)
439 DRM_ERROR("Failed to blank CRTC\n");
440
441 (void) vmw_stdu_update_st(dev_priv, stdu);
442
443 ret = vmw_stdu_destroy_st(dev_priv, stdu);
444 if (ret)
445 DRM_ERROR("Failed to destroy Screen Target\n");
446
447 stdu->content_fb_type = SAME_AS_DISPLAY;
448 }
449}
450
451/**
452 * vmw_stdu_bo_cpu_clip - Callback to encode a CPU blit
453 *
454 * @dirty: The closure structure.
455 *
456 * This function calculates the bounding box for all the incoming clips.
457 */
458static void vmw_stdu_bo_cpu_clip(struct vmw_kms_dirty *dirty)
459{
460 struct vmw_stdu_dirty *ddirty =
461 container_of(dirty, struct vmw_stdu_dirty, base);
462
463 dirty->num_hits = 1;
464
465 /* Calculate destination bounding box */
466 ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1);
467 ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1);
468 ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2);
469 ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2);
470
471 /*
472 * Calculate content bounding box. We only need the top-left
473 * coordinate because width and height will be the same as the
474 * destination bounding box above
475 */
476 ddirty->fb_left = min_t(s32, ddirty->fb_left, dirty->fb_x);
477 ddirty->fb_top = min_t(s32, ddirty->fb_top, dirty->fb_y);
478}
479
480
481/**
482 * vmw_stdu_bo_cpu_commit - Callback to do a CPU blit from buffer object
483 *
484 * @dirty: The closure structure.
485 *
486 * For the special case when we cannot create a proxy surface in a
487 * 2D VM, we have to do a CPU blit ourselves.
488 */
489static void vmw_stdu_bo_cpu_commit(struct vmw_kms_dirty *dirty)
490{
491 struct vmw_stdu_dirty *ddirty =
492 container_of(dirty, struct vmw_stdu_dirty, base);
493 struct vmw_screen_target_display_unit *stdu =
494 container_of(dirty->unit, typeof(*stdu), base);
495 s32 width, height;
496 s32 src_pitch, dst_pitch;
497 struct ttm_buffer_object *src_bo, *dst_bo;
498 u32 src_offset, dst_offset;
499 struct vmw_diff_cpy diff = VMW_CPU_BLIT_DIFF_INITIALIZER(stdu->cpp);
500
501 if (!dirty->num_hits)
502 return;
503
504 width = ddirty->right - ddirty->left;
505 height = ddirty->bottom - ddirty->top;
506
507 if (width == 0 || height == 0)
508 return;
509
510 /* Assume we are blitting from Guest (bo) to Host (display_srf) */
511 src_pitch = stdu->display_srf->metadata.base_size.width * stdu->cpp;
512 src_bo = &stdu->display_srf->res.guest_memory_bo->tbo;
513 src_offset = ddirty->top * src_pitch + ddirty->left * stdu->cpp;
514
515 dst_pitch = ddirty->pitch;
516 dst_bo = &ddirty->buf->tbo;
517 dst_offset = ddirty->fb_top * dst_pitch + ddirty->fb_left * stdu->cpp;
518
519 (void) vmw_bo_cpu_blit(dst_bo, dst_offset, dst_pitch,
520 src_bo, src_offset, src_pitch,
521 width * stdu->cpp, height, &diff);
522}
523
524/**
525 * vmw_kms_stdu_readback - Perform a readback from a buffer-object backed
526 * framebuffer and the screen target system.
527 *
528 * @dev_priv: Pointer to the device private structure.
529 * @file_priv: Pointer to a struct drm-file identifying the caller. May be
530 * set to NULL, but then @user_fence_rep must also be set to NULL.
531 * @vfb: Pointer to the buffer-object backed framebuffer.
532 * @user_fence_rep: User-space provided structure for fence information.
533 * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
534 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
535 * be NULL.
536 * @num_clips: Number of clip rects in @clips or @vclips.
537 * @increment: Increment to use when looping over @clips or @vclips.
538 * @crtc: If crtc is passed, perform stdu dma on that crtc only.
539 *
540 * If DMA-ing till the screen target system, the function will also notify
541 * the screen target system that a bounding box of the cliprects has been
542 * updated.
543 *
544 * Returns: %0 on success, negative error code on failure. -ERESTARTSYS if
545 * interrupted.
546 */
547int vmw_kms_stdu_readback(struct vmw_private *dev_priv,
548 struct drm_file *file_priv,
549 struct vmw_framebuffer *vfb,
550 struct drm_vmw_fence_rep __user *user_fence_rep,
551 struct drm_clip_rect *clips,
552 struct drm_vmw_rect *vclips,
553 uint32_t num_clips,
554 int increment,
555 struct drm_crtc *crtc)
556{
557 struct vmw_bo *buf =
558 container_of(vfb, struct vmw_framebuffer_bo, base)->buffer;
559 struct vmw_stdu_dirty ddirty;
560 int ret;
561 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
562
563 /*
564 * The GMR domain might seem confusing because it might seem like it should
565 * never happen with screen targets but e.g. the xorg vmware driver issues
566 * CMD_SURFACE_DMA for various pixmap updates which might transition our bo to
567 * a GMR. Instead of forcing another transition we can optimize the readback
568 * by reading directly from the GMR.
569 */
570 vmw_bo_placement_set(buf,
571 VMW_BO_DOMAIN_MOB | VMW_BO_DOMAIN_SYS | VMW_BO_DOMAIN_GMR,
572 VMW_BO_DOMAIN_MOB | VMW_BO_DOMAIN_SYS | VMW_BO_DOMAIN_GMR);
573 ret = vmw_validation_add_bo(&val_ctx, buf);
574 if (ret)
575 return ret;
576
577 ret = vmw_validation_prepare(&val_ctx, NULL, true);
578 if (ret)
579 goto out_unref;
580
581 ddirty.left = ddirty.top = S32_MAX;
582 ddirty.right = ddirty.bottom = S32_MIN;
583 ddirty.fb_left = ddirty.fb_top = S32_MAX;
584 ddirty.pitch = vfb->base.pitches[0];
585 ddirty.buf = buf;
586
587 ddirty.base.fifo_commit = vmw_stdu_bo_cpu_commit;
588 ddirty.base.clip = vmw_stdu_bo_cpu_clip;
589 ddirty.base.fifo_reserve_size = 0;
590
591 ddirty.base.crtc = crtc;
592
593 ret = vmw_kms_helper_dirty(dev_priv, vfb, clips, vclips,
594 0, 0, num_clips, increment, &ddirty.base);
595
596 vmw_kms_helper_validation_finish(dev_priv, file_priv, &val_ctx, NULL,
597 user_fence_rep);
598 return ret;
599
600out_unref:
601 vmw_validation_unref_lists(&val_ctx);
602 return ret;
603}
604
605/**
606 * vmw_kms_stdu_surface_clip - Callback to encode a surface copy command cliprect
607 *
608 * @dirty: The closure structure.
609 *
610 * Encodes a surface copy command cliprect and updates the bounding box
611 * for the copy.
612 */
613static void vmw_kms_stdu_surface_clip(struct vmw_kms_dirty *dirty)
614{
615 struct vmw_stdu_dirty *sdirty =
616 container_of(dirty, struct vmw_stdu_dirty, base);
617 struct vmw_stdu_surface_copy *cmd = dirty->cmd;
618 struct vmw_screen_target_display_unit *stdu =
619 container_of(dirty->unit, typeof(*stdu), base);
620
621 if (sdirty->sid != stdu->display_srf->res.id) {
622 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
623
624 blit += dirty->num_hits;
625 blit->srcx = dirty->fb_x;
626 blit->srcy = dirty->fb_y;
627 blit->x = dirty->unit_x1;
628 blit->y = dirty->unit_y1;
629 blit->d = 1;
630 blit->w = dirty->unit_x2 - dirty->unit_x1;
631 blit->h = dirty->unit_y2 - dirty->unit_y1;
632 }
633
634 dirty->num_hits++;
635
636 /* Destination bounding box */
637 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1);
638 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1);
639 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2);
640 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2);
641}
642
643/**
644 * vmw_kms_stdu_surface_fifo_commit - Callback to fill in and submit a surface
645 * copy command.
646 *
647 * @dirty: The closure structure.
648 *
649 * Fills in the missing fields in a surface copy command, and encodes a screen
650 * target update command.
651 */
652static void vmw_kms_stdu_surface_fifo_commit(struct vmw_kms_dirty *dirty)
653{
654 struct vmw_stdu_dirty *sdirty =
655 container_of(dirty, struct vmw_stdu_dirty, base);
656 struct vmw_screen_target_display_unit *stdu =
657 container_of(dirty->unit, typeof(*stdu), base);
658 struct vmw_stdu_surface_copy *cmd = dirty->cmd;
659 struct vmw_stdu_update *update;
660 size_t blit_size = sizeof(SVGA3dCopyBox) * dirty->num_hits;
661 size_t commit_size;
662
663 if (!dirty->num_hits) {
664 vmw_cmd_commit(dirty->dev_priv, 0);
665 return;
666 }
667
668 if (sdirty->sid != stdu->display_srf->res.id) {
669 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
670
671 cmd->header.id = SVGA_3D_CMD_SURFACE_COPY;
672 cmd->header.size = sizeof(cmd->body) + blit_size;
673 cmd->body.src.sid = sdirty->sid;
674 cmd->body.dest.sid = stdu->display_srf->res.id;
675 update = (struct vmw_stdu_update *) &blit[dirty->num_hits];
676 commit_size = sizeof(*cmd) + blit_size + sizeof(*update);
677 stdu->display_srf->res.res_dirty = true;
678 } else {
679 update = dirty->cmd;
680 commit_size = sizeof(*update);
681 }
682
683 vmw_stdu_populate_update(update, stdu->base.unit, sdirty->left,
684 sdirty->right, sdirty->top, sdirty->bottom);
685
686 vmw_cmd_commit(dirty->dev_priv, commit_size);
687
688 sdirty->left = sdirty->top = S32_MAX;
689 sdirty->right = sdirty->bottom = S32_MIN;
690}
691
692/**
693 * vmw_kms_stdu_surface_dirty - Dirty part of a surface backed framebuffer
694 *
695 * @dev_priv: Pointer to the device private structure.
696 * @framebuffer: Pointer to the surface-buffer backed framebuffer.
697 * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
698 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
699 * be NULL.
700 * @srf: Pointer to surface to blit from. If NULL, the surface attached
701 * to @framebuffer will be used.
702 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates.
703 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates.
704 * @num_clips: Number of clip rects in @clips.
705 * @inc: Increment to use when looping over @clips.
706 * @out_fence: If non-NULL, will return a ref-counted pointer to a
707 * struct vmw_fence_obj. The returned fence pointer may be NULL in which
708 * case the device has already synchronized.
709 * @crtc: If crtc is passed, perform surface dirty on that crtc only.
710 *
711 * Returns: %0 on success, negative error code on failure. -ERESTARTSYS if
712 * interrupted.
713 */
714int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv,
715 struct vmw_framebuffer *framebuffer,
716 struct drm_clip_rect *clips,
717 struct drm_vmw_rect *vclips,
718 struct vmw_resource *srf,
719 s32 dest_x,
720 s32 dest_y,
721 unsigned num_clips, int inc,
722 struct vmw_fence_obj **out_fence,
723 struct drm_crtc *crtc)
724{
725 struct vmw_framebuffer_surface *vfbs =
726 container_of(framebuffer, typeof(*vfbs), base);
727 struct vmw_stdu_dirty sdirty;
728 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
729 int ret;
730
731 if (!srf)
732 srf = &vfbs->surface->res;
733
734 ret = vmw_validation_add_resource(&val_ctx, srf, 0, VMW_RES_DIRTY_NONE,
735 NULL, NULL);
736 if (ret)
737 return ret;
738
739 ret = vmw_validation_prepare(&val_ctx, &dev_priv->cmdbuf_mutex, true);
740 if (ret)
741 goto out_unref;
742
743 if (vfbs->is_bo_proxy) {
744 ret = vmw_kms_update_proxy(srf, clips, num_clips, inc);
745 if (ret)
746 goto out_finish;
747 }
748
749 sdirty.base.fifo_commit = vmw_kms_stdu_surface_fifo_commit;
750 sdirty.base.clip = vmw_kms_stdu_surface_clip;
751 sdirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_surface_copy) +
752 sizeof(SVGA3dCopyBox) * num_clips +
753 sizeof(struct vmw_stdu_update);
754 sdirty.base.crtc = crtc;
755 sdirty.sid = srf->id;
756 sdirty.left = sdirty.top = S32_MAX;
757 sdirty.right = sdirty.bottom = S32_MIN;
758
759 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
760 dest_x, dest_y, num_clips, inc,
761 &sdirty.base);
762out_finish:
763 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence,
764 NULL);
765
766 return ret;
767
768out_unref:
769 vmw_validation_unref_lists(&val_ctx);
770 return ret;
771}
772
773
774/*
775 * Screen Target CRTC dispatch table
776 */
777static const struct drm_crtc_funcs vmw_stdu_crtc_funcs = {
778 .gamma_set = vmw_du_crtc_gamma_set,
779 .destroy = vmw_stdu_crtc_destroy,
780 .reset = vmw_du_crtc_reset,
781 .atomic_duplicate_state = vmw_du_crtc_duplicate_state,
782 .atomic_destroy_state = vmw_du_crtc_destroy_state,
783 .set_config = drm_atomic_helper_set_config,
784 .page_flip = drm_atomic_helper_page_flip,
785};
786
787
788
789/******************************************************************************
790 * Screen Target Display Unit Encoder Functions
791 *****************************************************************************/
792
793/**
794 * vmw_stdu_encoder_destroy - cleans up the STDU
795 *
796 * @encoder: used the get the containing STDU
797 *
798 * vmwgfx cleans up crtc/encoder/connector all at the same time so technically
799 * this can be a no-op. Nevertheless, it doesn't hurt of have this in case
800 * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't
801 * get called.
802 */
803static void vmw_stdu_encoder_destroy(struct drm_encoder *encoder)
804{
805 vmw_stdu_destroy(vmw_encoder_to_stdu(encoder));
806}
807
808static const struct drm_encoder_funcs vmw_stdu_encoder_funcs = {
809 .destroy = vmw_stdu_encoder_destroy,
810};
811
812
813
814/******************************************************************************
815 * Screen Target Display Unit Connector Functions
816 *****************************************************************************/
817
818/**
819 * vmw_stdu_connector_destroy - cleans up the STDU
820 *
821 * @connector: used to get the containing STDU
822 *
823 * vmwgfx cleans up crtc/encoder/connector all at the same time so technically
824 * this can be a no-op. Nevertheless, it doesn't hurt of have this in case
825 * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't
826 * get called.
827 */
828static void vmw_stdu_connector_destroy(struct drm_connector *connector)
829{
830 vmw_stdu_destroy(vmw_connector_to_stdu(connector));
831}
832
833
834
835static const struct drm_connector_funcs vmw_stdu_connector_funcs = {
836 .dpms = vmw_du_connector_dpms,
837 .detect = vmw_du_connector_detect,
838 .fill_modes = drm_helper_probe_single_connector_modes,
839 .destroy = vmw_stdu_connector_destroy,
840 .reset = vmw_du_connector_reset,
841 .atomic_duplicate_state = vmw_du_connector_duplicate_state,
842 .atomic_destroy_state = vmw_du_connector_destroy_state,
843};
844
845
846static const struct
847drm_connector_helper_funcs vmw_stdu_connector_helper_funcs = {
848 .get_modes = vmw_connector_get_modes,
849 .mode_valid = vmw_connector_mode_valid
850};
851
852
853
854/******************************************************************************
855 * Screen Target Display Plane Functions
856 *****************************************************************************/
857
858
859
860/**
861 * vmw_stdu_primary_plane_cleanup_fb - Unpins the display surface
862 *
863 * @plane: display plane
864 * @old_state: Contains the FB to clean up
865 *
866 * Unpins the display surface
867 *
868 * Returns 0 on success
869 */
870static void
871vmw_stdu_primary_plane_cleanup_fb(struct drm_plane *plane,
872 struct drm_plane_state *old_state)
873{
874 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
875
876 if (vps->surf)
877 WARN_ON(!vps->pinned);
878
879 vmw_du_plane_cleanup_fb(plane, old_state);
880
881 vps->content_fb_type = SAME_AS_DISPLAY;
882 vps->cpp = 0;
883}
884
885
886
887/**
888 * vmw_stdu_primary_plane_prepare_fb - Readies the display surface
889 *
890 * @plane: display plane
891 * @new_state: info on the new plane state, including the FB
892 *
893 * This function allocates a new display surface if the content is
894 * backed by a buffer object. The display surface is pinned here, and it'll
895 * be unpinned in .cleanup_fb()
896 *
897 * Returns: %0 on success
898 */
899static int
900vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane,
901 struct drm_plane_state *new_state)
902{
903 struct vmw_private *dev_priv = vmw_priv(plane->dev);
904 struct drm_framebuffer *new_fb = new_state->fb;
905 struct vmw_framebuffer *vfb;
906 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
907 enum stdu_content_type new_content_type;
908 struct vmw_framebuffer_surface *new_vfbs;
909 uint32_t hdisplay = new_state->crtc_w, vdisplay = new_state->crtc_h;
910 int ret;
911
912 /* No FB to prepare */
913 if (!new_fb) {
914 if (vps->surf) {
915 WARN_ON(vps->pinned != 0);
916 vmw_surface_unreference(&vps->surf);
917 }
918
919 return 0;
920 }
921
922 vfb = vmw_framebuffer_to_vfb(new_fb);
923 new_vfbs = (vfb->bo) ? NULL : vmw_framebuffer_to_vfbs(new_fb);
924
925 if (new_vfbs &&
926 new_vfbs->surface->metadata.base_size.width == hdisplay &&
927 new_vfbs->surface->metadata.base_size.height == vdisplay)
928 new_content_type = SAME_AS_DISPLAY;
929 else if (vfb->bo)
930 new_content_type = SEPARATE_BO;
931 else
932 new_content_type = SEPARATE_SURFACE;
933
934 if (new_content_type != SAME_AS_DISPLAY) {
935 struct vmw_surface_metadata metadata = {0};
936
937 /*
938 * If content buffer is a buffer object, then we have to
939 * construct surface info
940 */
941 if (new_content_type == SEPARATE_BO) {
942
943 switch (new_fb->format->cpp[0]*8) {
944 case 32:
945 metadata.format = SVGA3D_X8R8G8B8;
946 break;
947
948 case 16:
949 metadata.format = SVGA3D_R5G6B5;
950 break;
951
952 case 8:
953 metadata.format = SVGA3D_P8;
954 break;
955
956 default:
957 DRM_ERROR("Invalid format\n");
958 return -EINVAL;
959 }
960
961 metadata.mip_levels[0] = 1;
962 metadata.num_sizes = 1;
963 metadata.scanout = true;
964 } else {
965 metadata = new_vfbs->surface->metadata;
966 }
967
968 metadata.base_size.width = hdisplay;
969 metadata.base_size.height = vdisplay;
970 metadata.base_size.depth = 1;
971
972 if (vps->surf) {
973 struct drm_vmw_size cur_base_size =
974 vps->surf->metadata.base_size;
975
976 if (cur_base_size.width != metadata.base_size.width ||
977 cur_base_size.height != metadata.base_size.height ||
978 vps->surf->metadata.format != metadata.format) {
979 WARN_ON(vps->pinned != 0);
980 vmw_surface_unreference(&vps->surf);
981 }
982
983 }
984
985 if (!vps->surf) {
986 ret = vmw_gb_surface_define(dev_priv, &metadata,
987 &vps->surf);
988 if (ret != 0) {
989 DRM_ERROR("Couldn't allocate STDU surface.\n");
990 return ret;
991 }
992 }
993 } else {
994 /*
995 * prepare_fb and clean_fb should only take care of pinning
996 * and unpinning. References are tracked by state objects.
997 * The only time we add a reference in prepare_fb is if the
998 * state object doesn't have a reference to begin with
999 */
1000 if (vps->surf) {
1001 WARN_ON(vps->pinned != 0);
1002 vmw_surface_unreference(&vps->surf);
1003 }
1004
1005 vps->surf = vmw_surface_reference(new_vfbs->surface);
1006 }
1007
1008 if (vps->surf) {
1009
1010 /* Pin new surface before flipping */
1011 ret = vmw_resource_pin(&vps->surf->res, false);
1012 if (ret)
1013 goto out_srf_unref;
1014
1015 vps->pinned++;
1016 }
1017
1018 vps->content_fb_type = new_content_type;
1019
1020 /*
1021 * This should only happen if the buffer object is too large to create a
1022 * proxy surface for.
1023 */
1024 if (vps->content_fb_type == SEPARATE_BO)
1025 vps->cpp = new_fb->pitches[0] / new_fb->width;
1026
1027 return 0;
1028
1029out_srf_unref:
1030 vmw_surface_unreference(&vps->surf);
1031 return ret;
1032}
1033
1034static uint32_t vmw_stdu_bo_fifo_size_cpu(struct vmw_du_update_plane *update,
1035 uint32_t num_hits)
1036{
1037 return sizeof(struct vmw_stdu_update_gb_image) +
1038 sizeof(struct vmw_stdu_update);
1039}
1040
1041static uint32_t vmw_stdu_bo_pre_clip_cpu(struct vmw_du_update_plane *update,
1042 void *cmd, uint32_t num_hits)
1043{
1044 struct vmw_du_update_plane_buffer *bo_update =
1045 container_of(update, typeof(*bo_update), base);
1046
1047 bo_update->fb_left = INT_MAX;
1048 bo_update->fb_top = INT_MAX;
1049
1050 return 0;
1051}
1052
1053static uint32_t vmw_stdu_bo_clip_cpu(struct vmw_du_update_plane *update,
1054 void *cmd, struct drm_rect *clip,
1055 uint32_t fb_x, uint32_t fb_y)
1056{
1057 struct vmw_du_update_plane_buffer *bo_update =
1058 container_of(update, typeof(*bo_update), base);
1059
1060 bo_update->fb_left = min_t(int, bo_update->fb_left, fb_x);
1061 bo_update->fb_top = min_t(int, bo_update->fb_top, fb_y);
1062
1063 return 0;
1064}
1065
1066static uint32_t
1067vmw_stdu_bo_populate_update_cpu(struct vmw_du_update_plane *update, void *cmd,
1068 struct drm_rect *bb)
1069{
1070 struct vmw_du_update_plane_buffer *bo_update;
1071 struct vmw_screen_target_display_unit *stdu;
1072 struct vmw_framebuffer_bo *vfbbo;
1073 struct vmw_diff_cpy diff = VMW_CPU_BLIT_DIFF_INITIALIZER(0);
1074 struct vmw_stdu_update_gb_image *cmd_img = cmd;
1075 struct vmw_stdu_update *cmd_update;
1076 struct ttm_buffer_object *src_bo, *dst_bo;
1077 u32 src_offset, dst_offset;
1078 s32 src_pitch, dst_pitch;
1079 s32 width, height;
1080
1081 bo_update = container_of(update, typeof(*bo_update), base);
1082 stdu = container_of(update->du, typeof(*stdu), base);
1083 vfbbo = container_of(update->vfb, typeof(*vfbbo), base);
1084
1085 width = bb->x2 - bb->x1;
1086 height = bb->y2 - bb->y1;
1087
1088 diff.cpp = stdu->cpp;
1089
1090 dst_bo = &stdu->display_srf->res.guest_memory_bo->tbo;
1091 dst_pitch = stdu->display_srf->metadata.base_size.width * stdu->cpp;
1092 dst_offset = bb->y1 * dst_pitch + bb->x1 * stdu->cpp;
1093
1094 src_bo = &vfbbo->buffer->tbo;
1095 src_pitch = update->vfb->base.pitches[0];
1096 src_offset = bo_update->fb_top * src_pitch + bo_update->fb_left *
1097 stdu->cpp;
1098
1099 (void) vmw_bo_cpu_blit(dst_bo, dst_offset, dst_pitch, src_bo,
1100 src_offset, src_pitch, width * stdu->cpp, height,
1101 &diff);
1102
1103 if (drm_rect_visible(&diff.rect)) {
1104 SVGA3dBox *box = &cmd_img->body.box;
1105
1106 cmd_img->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
1107 cmd_img->header.size = sizeof(cmd_img->body);
1108 cmd_img->body.image.sid = stdu->display_srf->res.id;
1109 cmd_img->body.image.face = 0;
1110 cmd_img->body.image.mipmap = 0;
1111
1112 box->x = diff.rect.x1;
1113 box->y = diff.rect.y1;
1114 box->z = 0;
1115 box->w = drm_rect_width(&diff.rect);
1116 box->h = drm_rect_height(&diff.rect);
1117 box->d = 1;
1118
1119 cmd_update = (struct vmw_stdu_update *)&cmd_img[1];
1120 vmw_stdu_populate_update(cmd_update, stdu->base.unit,
1121 diff.rect.x1, diff.rect.x2,
1122 diff.rect.y1, diff.rect.y2);
1123
1124 return sizeof(*cmd_img) + sizeof(*cmd_update);
1125 }
1126
1127 return 0;
1128}
1129
1130/**
1131 * vmw_stdu_plane_update_bo - Update display unit for bo backed fb.
1132 * @dev_priv: device private.
1133 * @plane: plane state.
1134 * @old_state: old plane state.
1135 * @vfb: framebuffer which is blitted to display unit.
1136 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj.
1137 * The returned fence pointer may be NULL in which case the device
1138 * has already synchronized.
1139 *
1140 * Return: 0 on success or a negative error code on failure.
1141 */
1142static int vmw_stdu_plane_update_bo(struct vmw_private *dev_priv,
1143 struct drm_plane *plane,
1144 struct drm_plane_state *old_state,
1145 struct vmw_framebuffer *vfb,
1146 struct vmw_fence_obj **out_fence)
1147{
1148 struct vmw_du_update_plane_buffer bo_update;
1149
1150 memset(&bo_update, 0, sizeof(struct vmw_du_update_plane_buffer));
1151 bo_update.base.plane = plane;
1152 bo_update.base.old_state = old_state;
1153 bo_update.base.dev_priv = dev_priv;
1154 bo_update.base.du = vmw_crtc_to_du(plane->state->crtc);
1155 bo_update.base.vfb = vfb;
1156 bo_update.base.out_fence = out_fence;
1157 bo_update.base.mutex = NULL;
1158 bo_update.base.intr = false;
1159
1160 bo_update.base.calc_fifo_size = vmw_stdu_bo_fifo_size_cpu;
1161 bo_update.base.pre_clip = vmw_stdu_bo_pre_clip_cpu;
1162 bo_update.base.clip = vmw_stdu_bo_clip_cpu;
1163 bo_update.base.post_clip = vmw_stdu_bo_populate_update_cpu;
1164
1165 return vmw_du_helper_plane_update(&bo_update.base);
1166}
1167
1168static uint32_t
1169vmw_stdu_surface_fifo_size_same_display(struct vmw_du_update_plane *update,
1170 uint32_t num_hits)
1171{
1172 struct vmw_framebuffer_surface *vfbs;
1173 uint32_t size = 0;
1174
1175 vfbs = container_of(update->vfb, typeof(*vfbs), base);
1176
1177 if (vfbs->is_bo_proxy)
1178 size += sizeof(struct vmw_stdu_update_gb_image) * num_hits;
1179
1180 size += sizeof(struct vmw_stdu_update);
1181
1182 return size;
1183}
1184
1185static uint32_t vmw_stdu_surface_fifo_size(struct vmw_du_update_plane *update,
1186 uint32_t num_hits)
1187{
1188 struct vmw_framebuffer_surface *vfbs;
1189 uint32_t size = 0;
1190
1191 vfbs = container_of(update->vfb, typeof(*vfbs), base);
1192
1193 if (vfbs->is_bo_proxy)
1194 size += sizeof(struct vmw_stdu_update_gb_image) * num_hits;
1195
1196 size += sizeof(struct vmw_stdu_surface_copy) + sizeof(SVGA3dCopyBox) *
1197 num_hits + sizeof(struct vmw_stdu_update);
1198
1199 return size;
1200}
1201
1202static uint32_t
1203vmw_stdu_surface_update_proxy(struct vmw_du_update_plane *update, void *cmd)
1204{
1205 struct vmw_framebuffer_surface *vfbs;
1206 struct drm_plane_state *state = update->plane->state;
1207 struct drm_plane_state *old_state = update->old_state;
1208 struct vmw_stdu_update_gb_image *cmd_update = cmd;
1209 struct drm_atomic_helper_damage_iter iter;
1210 struct drm_rect clip;
1211 uint32_t copy_size = 0;
1212
1213 vfbs = container_of(update->vfb, typeof(*vfbs), base);
1214
1215 /*
1216 * proxy surface is special where a buffer object type fb is wrapped
1217 * in a surface and need an update gb image command to sync with device.
1218 */
1219 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
1220 drm_atomic_for_each_plane_damage(&iter, &clip) {
1221 SVGA3dBox *box = &cmd_update->body.box;
1222
1223 cmd_update->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
1224 cmd_update->header.size = sizeof(cmd_update->body);
1225 cmd_update->body.image.sid = vfbs->surface->res.id;
1226 cmd_update->body.image.face = 0;
1227 cmd_update->body.image.mipmap = 0;
1228
1229 box->x = clip.x1;
1230 box->y = clip.y1;
1231 box->z = 0;
1232 box->w = drm_rect_width(&clip);
1233 box->h = drm_rect_height(&clip);
1234 box->d = 1;
1235
1236 copy_size += sizeof(*cmd_update);
1237 cmd_update++;
1238 }
1239
1240 return copy_size;
1241}
1242
1243static uint32_t
1244vmw_stdu_surface_populate_copy(struct vmw_du_update_plane *update, void *cmd,
1245 uint32_t num_hits)
1246{
1247 struct vmw_screen_target_display_unit *stdu;
1248 struct vmw_framebuffer_surface *vfbs;
1249 struct vmw_stdu_surface_copy *cmd_copy = cmd;
1250
1251 stdu = container_of(update->du, typeof(*stdu), base);
1252 vfbs = container_of(update->vfb, typeof(*vfbs), base);
1253
1254 cmd_copy->header.id = SVGA_3D_CMD_SURFACE_COPY;
1255 cmd_copy->header.size = sizeof(cmd_copy->body) + sizeof(SVGA3dCopyBox) *
1256 num_hits;
1257 cmd_copy->body.src.sid = vfbs->surface->res.id;
1258 cmd_copy->body.dest.sid = stdu->display_srf->res.id;
1259
1260 return sizeof(*cmd_copy);
1261}
1262
1263static uint32_t
1264vmw_stdu_surface_populate_clip(struct vmw_du_update_plane *update, void *cmd,
1265 struct drm_rect *clip, uint32_t fb_x,
1266 uint32_t fb_y)
1267{
1268 struct SVGA3dCopyBox *box = cmd;
1269
1270 box->srcx = fb_x;
1271 box->srcy = fb_y;
1272 box->srcz = 0;
1273 box->x = clip->x1;
1274 box->y = clip->y1;
1275 box->z = 0;
1276 box->w = drm_rect_width(clip);
1277 box->h = drm_rect_height(clip);
1278 box->d = 1;
1279
1280 return sizeof(*box);
1281}
1282
1283static uint32_t
1284vmw_stdu_surface_populate_update(struct vmw_du_update_plane *update, void *cmd,
1285 struct drm_rect *bb)
1286{
1287 vmw_stdu_populate_update(cmd, update->du->unit, bb->x1, bb->x2, bb->y1,
1288 bb->y2);
1289
1290 return sizeof(struct vmw_stdu_update);
1291}
1292
1293/**
1294 * vmw_stdu_plane_update_surface - Update display unit for surface backed fb
1295 * @dev_priv: Device private
1296 * @plane: Plane state
1297 * @old_state: Old plane state
1298 * @vfb: Framebuffer which is blitted to display unit
1299 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj.
1300 * The returned fence pointer may be NULL in which case the device
1301 * has already synchronized.
1302 *
1303 * Return: 0 on success or a negative error code on failure.
1304 */
1305static int vmw_stdu_plane_update_surface(struct vmw_private *dev_priv,
1306 struct drm_plane *plane,
1307 struct drm_plane_state *old_state,
1308 struct vmw_framebuffer *vfb,
1309 struct vmw_fence_obj **out_fence)
1310{
1311 struct vmw_du_update_plane srf_update;
1312 struct vmw_screen_target_display_unit *stdu;
1313 struct vmw_framebuffer_surface *vfbs;
1314
1315 stdu = vmw_crtc_to_stdu(plane->state->crtc);
1316 vfbs = container_of(vfb, typeof(*vfbs), base);
1317
1318 memset(&srf_update, 0, sizeof(struct vmw_du_update_plane));
1319 srf_update.plane = plane;
1320 srf_update.old_state = old_state;
1321 srf_update.dev_priv = dev_priv;
1322 srf_update.du = vmw_crtc_to_du(plane->state->crtc);
1323 srf_update.vfb = vfb;
1324 srf_update.out_fence = out_fence;
1325 srf_update.mutex = &dev_priv->cmdbuf_mutex;
1326 srf_update.intr = true;
1327
1328 if (vfbs->is_bo_proxy)
1329 srf_update.post_prepare = vmw_stdu_surface_update_proxy;
1330
1331 if (vfbs->surface->res.id != stdu->display_srf->res.id) {
1332 srf_update.calc_fifo_size = vmw_stdu_surface_fifo_size;
1333 srf_update.pre_clip = vmw_stdu_surface_populate_copy;
1334 srf_update.clip = vmw_stdu_surface_populate_clip;
1335 } else {
1336 srf_update.calc_fifo_size =
1337 vmw_stdu_surface_fifo_size_same_display;
1338 }
1339
1340 srf_update.post_clip = vmw_stdu_surface_populate_update;
1341
1342 return vmw_du_helper_plane_update(&srf_update);
1343}
1344
1345/**
1346 * vmw_stdu_primary_plane_atomic_update - formally switches STDU to new plane
1347 * @plane: display plane
1348 * @state: Only used to get crtc info
1349 *
1350 * Formally update stdu->display_srf to the new plane, and bind the new
1351 * plane STDU. This function is called during the commit phase when
1352 * all the preparation have been done and all the configurations have
1353 * been checked.
1354 */
1355static void
1356vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane,
1357 struct drm_atomic_state *state)
1358{
1359 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane);
1360 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane);
1361 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
1362 struct drm_crtc *crtc = new_state->crtc;
1363 struct vmw_screen_target_display_unit *stdu;
1364 struct vmw_fence_obj *fence = NULL;
1365 struct vmw_private *dev_priv;
1366 int ret;
1367
1368 /* If case of device error, maintain consistent atomic state */
1369 if (crtc && new_state->fb) {
1370 struct vmw_framebuffer *vfb =
1371 vmw_framebuffer_to_vfb(new_state->fb);
1372 stdu = vmw_crtc_to_stdu(crtc);
1373 dev_priv = vmw_priv(crtc->dev);
1374
1375 stdu->display_srf = vps->surf;
1376 stdu->content_fb_type = vps->content_fb_type;
1377 stdu->cpp = vps->cpp;
1378
1379 ret = vmw_stdu_bind_st(dev_priv, stdu, &stdu->display_srf->res);
1380 if (ret)
1381 DRM_ERROR("Failed to bind surface to STDU.\n");
1382
1383 if (vfb->bo)
1384 ret = vmw_stdu_plane_update_bo(dev_priv, plane,
1385 old_state, vfb, &fence);
1386 else
1387 ret = vmw_stdu_plane_update_surface(dev_priv, plane,
1388 old_state, vfb,
1389 &fence);
1390 if (ret)
1391 DRM_ERROR("Failed to update STDU.\n");
1392 } else {
1393 crtc = old_state->crtc;
1394 stdu = vmw_crtc_to_stdu(crtc);
1395 dev_priv = vmw_priv(crtc->dev);
1396
1397 /* Blank STDU when fb and crtc are NULL */
1398 if (!stdu->defined)
1399 return;
1400
1401 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
1402 if (ret)
1403 DRM_ERROR("Failed to blank STDU\n");
1404
1405 ret = vmw_stdu_update_st(dev_priv, stdu);
1406 if (ret)
1407 DRM_ERROR("Failed to update STDU.\n");
1408
1409 return;
1410 }
1411
1412 if (fence)
1413 vmw_fence_obj_unreference(&fence);
1414}
1415
1416
1417static const struct drm_plane_funcs vmw_stdu_plane_funcs = {
1418 .update_plane = drm_atomic_helper_update_plane,
1419 .disable_plane = drm_atomic_helper_disable_plane,
1420 .destroy = vmw_du_primary_plane_destroy,
1421 .reset = vmw_du_plane_reset,
1422 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
1423 .atomic_destroy_state = vmw_du_plane_destroy_state,
1424};
1425
1426static const struct drm_plane_funcs vmw_stdu_cursor_funcs = {
1427 .update_plane = drm_atomic_helper_update_plane,
1428 .disable_plane = drm_atomic_helper_disable_plane,
1429 .destroy = vmw_du_cursor_plane_destroy,
1430 .reset = vmw_du_plane_reset,
1431 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
1432 .atomic_destroy_state = vmw_du_plane_destroy_state,
1433};
1434
1435
1436/*
1437 * Atomic Helpers
1438 */
1439static const struct
1440drm_plane_helper_funcs vmw_stdu_cursor_plane_helper_funcs = {
1441 .atomic_check = vmw_du_cursor_plane_atomic_check,
1442 .atomic_update = vmw_du_cursor_plane_atomic_update,
1443 .prepare_fb = vmw_du_cursor_plane_prepare_fb,
1444 .cleanup_fb = vmw_du_cursor_plane_cleanup_fb,
1445};
1446
1447static const struct
1448drm_plane_helper_funcs vmw_stdu_primary_plane_helper_funcs = {
1449 .atomic_check = vmw_du_primary_plane_atomic_check,
1450 .atomic_update = vmw_stdu_primary_plane_atomic_update,
1451 .prepare_fb = vmw_stdu_primary_plane_prepare_fb,
1452 .cleanup_fb = vmw_stdu_primary_plane_cleanup_fb,
1453};
1454
1455static const struct drm_crtc_helper_funcs vmw_stdu_crtc_helper_funcs = {
1456 .prepare = vmw_stdu_crtc_helper_prepare,
1457 .mode_set_nofb = vmw_stdu_crtc_mode_set_nofb,
1458 .atomic_check = vmw_du_crtc_atomic_check,
1459 .atomic_begin = vmw_du_crtc_atomic_begin,
1460 .atomic_flush = vmw_du_crtc_atomic_flush,
1461 .atomic_enable = vmw_stdu_crtc_atomic_enable,
1462 .atomic_disable = vmw_stdu_crtc_atomic_disable,
1463};
1464
1465
1466/**
1467 * vmw_stdu_init - Sets up a Screen Target Display Unit
1468 *
1469 * @dev_priv: VMW DRM device
1470 * @unit: unit number range from 0 to VMWGFX_NUM_DISPLAY_UNITS
1471 *
1472 * This function is called once per CRTC, and allocates one Screen Target
1473 * display unit to represent that CRTC. Since the SVGA device does not separate
1474 * out encoder and connector, they are represented as part of the STDU as well.
1475 *
1476 * Returns: %0 on success or -errno code on failure
1477 */
1478static int vmw_stdu_init(struct vmw_private *dev_priv, unsigned unit)
1479{
1480 struct vmw_screen_target_display_unit *stdu;
1481 struct drm_device *dev = &dev_priv->drm;
1482 struct drm_connector *connector;
1483 struct drm_encoder *encoder;
1484 struct drm_plane *primary;
1485 struct vmw_cursor_plane *cursor;
1486 struct drm_crtc *crtc;
1487 int ret;
1488
1489 stdu = kzalloc(sizeof(*stdu), GFP_KERNEL);
1490 if (!stdu)
1491 return -ENOMEM;
1492
1493 stdu->base.unit = unit;
1494 crtc = &stdu->base.crtc;
1495 encoder = &stdu->base.encoder;
1496 connector = &stdu->base.connector;
1497 primary = &stdu->base.primary;
1498 cursor = &stdu->base.cursor;
1499
1500 stdu->base.pref_active = (unit == 0);
1501 stdu->base.pref_width = dev_priv->initial_width;
1502 stdu->base.pref_height = dev_priv->initial_height;
1503 stdu->base.is_implicit = false;
1504
1505 /* Initialize primary plane */
1506 ret = drm_universal_plane_init(dev, primary,
1507 0, &vmw_stdu_plane_funcs,
1508 vmw_primary_plane_formats,
1509 ARRAY_SIZE(vmw_primary_plane_formats),
1510 NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
1511 if (ret) {
1512 DRM_ERROR("Failed to initialize primary plane");
1513 goto err_free;
1514 }
1515
1516 drm_plane_helper_add(primary, &vmw_stdu_primary_plane_helper_funcs);
1517 drm_plane_enable_fb_damage_clips(primary);
1518
1519 /* Initialize cursor plane */
1520 ret = drm_universal_plane_init(dev, &cursor->base,
1521 0, &vmw_stdu_cursor_funcs,
1522 vmw_cursor_plane_formats,
1523 ARRAY_SIZE(vmw_cursor_plane_formats),
1524 NULL, DRM_PLANE_TYPE_CURSOR, NULL);
1525 if (ret) {
1526 DRM_ERROR("Failed to initialize cursor plane");
1527 drm_plane_cleanup(&stdu->base.primary);
1528 goto err_free;
1529 }
1530
1531 drm_plane_helper_add(&cursor->base, &vmw_stdu_cursor_plane_helper_funcs);
1532
1533 ret = drm_connector_init(dev, connector, &vmw_stdu_connector_funcs,
1534 DRM_MODE_CONNECTOR_VIRTUAL);
1535 if (ret) {
1536 DRM_ERROR("Failed to initialize connector\n");
1537 goto err_free;
1538 }
1539
1540 drm_connector_helper_add(connector, &vmw_stdu_connector_helper_funcs);
1541 connector->status = vmw_du_connector_detect(connector, false);
1542
1543 ret = drm_encoder_init(dev, encoder, &vmw_stdu_encoder_funcs,
1544 DRM_MODE_ENCODER_VIRTUAL, NULL);
1545 if (ret) {
1546 DRM_ERROR("Failed to initialize encoder\n");
1547 goto err_free_connector;
1548 }
1549
1550 (void) drm_connector_attach_encoder(connector, encoder);
1551 encoder->possible_crtcs = (1 << unit);
1552 encoder->possible_clones = 0;
1553
1554 ret = drm_connector_register(connector);
1555 if (ret) {
1556 DRM_ERROR("Failed to register connector\n");
1557 goto err_free_encoder;
1558 }
1559
1560 ret = drm_crtc_init_with_planes(dev, crtc, primary,
1561 &cursor->base,
1562 &vmw_stdu_crtc_funcs, NULL);
1563 if (ret) {
1564 DRM_ERROR("Failed to initialize CRTC\n");
1565 goto err_free_unregister;
1566 }
1567
1568 drm_crtc_helper_add(crtc, &vmw_stdu_crtc_helper_funcs);
1569
1570 drm_mode_crtc_set_gamma_size(crtc, 256);
1571
1572 drm_object_attach_property(&connector->base,
1573 dev_priv->hotplug_mode_update_property, 1);
1574 drm_object_attach_property(&connector->base,
1575 dev->mode_config.suggested_x_property, 0);
1576 drm_object_attach_property(&connector->base,
1577 dev->mode_config.suggested_y_property, 0);
1578 return 0;
1579
1580err_free_unregister:
1581 drm_connector_unregister(connector);
1582err_free_encoder:
1583 drm_encoder_cleanup(encoder);
1584err_free_connector:
1585 drm_connector_cleanup(connector);
1586err_free:
1587 kfree(stdu);
1588 return ret;
1589}
1590
1591
1592
1593/**
1594 * vmw_stdu_destroy - Cleans up a vmw_screen_target_display_unit
1595 *
1596 * @stdu: Screen Target Display Unit to be destroyed
1597 *
1598 * Clean up after vmw_stdu_init
1599 */
1600static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu)
1601{
1602 vmw_du_cleanup(&stdu->base);
1603 kfree(stdu);
1604}
1605
1606
1607
1608/******************************************************************************
1609 * Screen Target Display KMS Functions
1610 *
1611 * These functions are called by the common KMS code in vmwgfx_kms.c
1612 *****************************************************************************/
1613
1614/**
1615 * vmw_kms_stdu_init_display - Initializes a Screen Target based display
1616 *
1617 * @dev_priv: VMW DRM device
1618 *
1619 * This function initialize a Screen Target based display device. It checks
1620 * the capability bits to make sure the underlying hardware can support
1621 * screen targets, and then creates the maximum number of CRTCs, a.k.a Display
1622 * Units, as supported by the display hardware.
1623 *
1624 * RETURNS:
1625 * 0 on success, error code otherwise
1626 */
1627int vmw_kms_stdu_init_display(struct vmw_private *dev_priv)
1628{
1629 struct drm_device *dev = &dev_priv->drm;
1630 int i, ret;
1631
1632
1633 /* Do nothing if there's no support for MOBs */
1634 if (!dev_priv->has_mob)
1635 return -ENOSYS;
1636
1637 if (!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS))
1638 return -ENOSYS;
1639
1640 dev_priv->active_display_unit = vmw_du_screen_target;
1641
1642 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) {
1643 ret = vmw_stdu_init(dev_priv, i);
1644
1645 if (unlikely(ret != 0)) {
1646 drm_err(&dev_priv->drm,
1647 "Failed to initialize STDU %d", i);
1648 return ret;
1649 }
1650 }
1651
1652 drm_mode_config_reset(dev);
1653
1654 return 0;
1655}