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1// SPDX-License-Identifier: GPL-2.0 OR MIT
2/**************************************************************************
3 *
4 * Copyright 2011-2015 VMware, Inc., Palo Alto, CA., USA
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#include <drm/drm_atomic.h>
29#include <drm/drm_atomic_helper.h>
30#include <drm/drm_damage_helper.h>
31#include <drm/drm_fourcc.h>
32#include <drm/drm_plane_helper.h>
33#include <drm/drm_vblank.h>
34
35#include "vmwgfx_kms.h"
36
37#define vmw_crtc_to_sou(x) \
38 container_of(x, struct vmw_screen_object_unit, base.crtc)
39#define vmw_encoder_to_sou(x) \
40 container_of(x, struct vmw_screen_object_unit, base.encoder)
41#define vmw_connector_to_sou(x) \
42 container_of(x, struct vmw_screen_object_unit, base.connector)
43
44/**
45 * struct vmw_kms_sou_surface_dirty - Closure structure for
46 * blit surface to screen command.
47 * @base: The base type we derive from. Used by vmw_kms_helper_dirty().
48 * @left: Left side of bounding box.
49 * @right: Right side of bounding box.
50 * @top: Top side of bounding box.
51 * @bottom: Bottom side of bounding box.
52 * @dst_x: Difference between source clip rects and framebuffer coordinates.
53 * @dst_y: Difference between source clip rects and framebuffer coordinates.
54 * @sid: Surface id of surface to copy from.
55 */
56struct vmw_kms_sou_surface_dirty {
57 struct vmw_kms_dirty base;
58 s32 left, right, top, bottom;
59 s32 dst_x, dst_y;
60 u32 sid;
61};
62
63/*
64 * SVGA commands that are used by this code. Please see the device headers
65 * for explanation.
66 */
67struct vmw_kms_sou_readback_blit {
68 uint32 header;
69 SVGAFifoCmdBlitScreenToGMRFB body;
70};
71
72struct vmw_kms_sou_bo_blit {
73 uint32 header;
74 SVGAFifoCmdBlitGMRFBToScreen body;
75};
76
77struct vmw_kms_sou_dirty_cmd {
78 SVGA3dCmdHeader header;
79 SVGA3dCmdBlitSurfaceToScreen body;
80};
81
82struct vmw_kms_sou_define_gmrfb {
83 uint32_t header;
84 SVGAFifoCmdDefineGMRFB body;
85};
86
87/**
88 * Display unit using screen objects.
89 */
90struct vmw_screen_object_unit {
91 struct vmw_display_unit base;
92
93 unsigned long buffer_size; /**< Size of allocated buffer */
94 struct vmw_buffer_object *buffer; /**< Backing store buffer */
95
96 bool defined;
97};
98
99static void vmw_sou_destroy(struct vmw_screen_object_unit *sou)
100{
101 vmw_du_cleanup(&sou->base);
102 kfree(sou);
103}
104
105
106/*
107 * Screen Object Display Unit CRTC functions
108 */
109
110static void vmw_sou_crtc_destroy(struct drm_crtc *crtc)
111{
112 vmw_sou_destroy(vmw_crtc_to_sou(crtc));
113}
114
115/**
116 * Send the fifo command to create a screen.
117 */
118static int vmw_sou_fifo_create(struct vmw_private *dev_priv,
119 struct vmw_screen_object_unit *sou,
120 int x, int y,
121 struct drm_display_mode *mode)
122{
123 size_t fifo_size;
124
125 struct {
126 struct {
127 uint32_t cmdType;
128 } header;
129 SVGAScreenObject obj;
130 } *cmd;
131
132 BUG_ON(!sou->buffer);
133
134 fifo_size = sizeof(*cmd);
135 cmd = VMW_FIFO_RESERVE(dev_priv, fifo_size);
136 if (unlikely(cmd == NULL))
137 return -ENOMEM;
138
139 memset(cmd, 0, fifo_size);
140 cmd->header.cmdType = SVGA_CMD_DEFINE_SCREEN;
141 cmd->obj.structSize = sizeof(SVGAScreenObject);
142 cmd->obj.id = sou->base.unit;
143 cmd->obj.flags = SVGA_SCREEN_HAS_ROOT |
144 (sou->base.unit == 0 ? SVGA_SCREEN_IS_PRIMARY : 0);
145 cmd->obj.size.width = mode->hdisplay;
146 cmd->obj.size.height = mode->vdisplay;
147 cmd->obj.root.x = x;
148 cmd->obj.root.y = y;
149 sou->base.set_gui_x = cmd->obj.root.x;
150 sou->base.set_gui_y = cmd->obj.root.y;
151
152 /* Ok to assume that buffer is pinned in vram */
153 vmw_bo_get_guest_ptr(&sou->buffer->base, &cmd->obj.backingStore.ptr);
154 cmd->obj.backingStore.pitch = mode->hdisplay * 4;
155
156 vmw_fifo_commit(dev_priv, fifo_size);
157
158 sou->defined = true;
159
160 return 0;
161}
162
163/**
164 * Send the fifo command to destroy a screen.
165 */
166static int vmw_sou_fifo_destroy(struct vmw_private *dev_priv,
167 struct vmw_screen_object_unit *sou)
168{
169 size_t fifo_size;
170 int ret;
171
172 struct {
173 struct {
174 uint32_t cmdType;
175 } header;
176 SVGAFifoCmdDestroyScreen body;
177 } *cmd;
178
179 /* no need to do anything */
180 if (unlikely(!sou->defined))
181 return 0;
182
183 fifo_size = sizeof(*cmd);
184 cmd = VMW_FIFO_RESERVE(dev_priv, fifo_size);
185 if (unlikely(cmd == NULL))
186 return -ENOMEM;
187
188 memset(cmd, 0, fifo_size);
189 cmd->header.cmdType = SVGA_CMD_DESTROY_SCREEN;
190 cmd->body.screenId = sou->base.unit;
191
192 vmw_fifo_commit(dev_priv, fifo_size);
193
194 /* Force sync */
195 ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ);
196 if (unlikely(ret != 0))
197 DRM_ERROR("Failed to sync with HW");
198 else
199 sou->defined = false;
200
201 return ret;
202}
203
204/**
205 * vmw_sou_crtc_mode_set_nofb - Create new screen
206 *
207 * @crtc: CRTC associated with the new screen
208 *
209 * This function creates/destroys a screen. This function cannot fail, so if
210 * somehow we run into a failure, just do the best we can to get out.
211 */
212static void vmw_sou_crtc_mode_set_nofb(struct drm_crtc *crtc)
213{
214 struct vmw_private *dev_priv;
215 struct vmw_screen_object_unit *sou;
216 struct vmw_framebuffer *vfb;
217 struct drm_framebuffer *fb;
218 struct drm_plane_state *ps;
219 struct vmw_plane_state *vps;
220 int ret;
221
222 sou = vmw_crtc_to_sou(crtc);
223 dev_priv = vmw_priv(crtc->dev);
224 ps = crtc->primary->state;
225 fb = ps->fb;
226 vps = vmw_plane_state_to_vps(ps);
227
228 vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL;
229
230 if (sou->defined) {
231 ret = vmw_sou_fifo_destroy(dev_priv, sou);
232 if (ret) {
233 DRM_ERROR("Failed to destroy Screen Object\n");
234 return;
235 }
236 }
237
238 if (vfb) {
239 struct drm_connector_state *conn_state;
240 struct vmw_connector_state *vmw_conn_state;
241 int x, y;
242
243 sou->buffer = vps->bo;
244 sou->buffer_size = vps->bo_size;
245
246 conn_state = sou->base.connector.state;
247 vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
248
249 x = vmw_conn_state->gui_x;
250 y = vmw_conn_state->gui_y;
251
252 ret = vmw_sou_fifo_create(dev_priv, sou, x, y, &crtc->mode);
253 if (ret)
254 DRM_ERROR("Failed to define Screen Object %dx%d\n",
255 crtc->x, crtc->y);
256
257 } else {
258 sou->buffer = NULL;
259 sou->buffer_size = 0;
260 }
261}
262
263/**
264 * vmw_sou_crtc_helper_prepare - Noop
265 *
266 * @crtc: CRTC associated with the new screen
267 *
268 * Prepares the CRTC for a mode set, but we don't need to do anything here.
269 */
270static void vmw_sou_crtc_helper_prepare(struct drm_crtc *crtc)
271{
272}
273
274/**
275 * vmw_sou_crtc_atomic_enable - Noop
276 *
277 * @crtc: CRTC associated with the new screen
278 *
279 * This is called after a mode set has been completed.
280 */
281static void vmw_sou_crtc_atomic_enable(struct drm_crtc *crtc,
282 struct drm_crtc_state *old_state)
283{
284}
285
286/**
287 * vmw_sou_crtc_atomic_disable - Turns off CRTC
288 *
289 * @crtc: CRTC to be turned off
290 */
291static void vmw_sou_crtc_atomic_disable(struct drm_crtc *crtc,
292 struct drm_crtc_state *old_state)
293{
294 struct vmw_private *dev_priv;
295 struct vmw_screen_object_unit *sou;
296 int ret;
297
298
299 if (!crtc) {
300 DRM_ERROR("CRTC is NULL\n");
301 return;
302 }
303
304 sou = vmw_crtc_to_sou(crtc);
305 dev_priv = vmw_priv(crtc->dev);
306
307 if (sou->defined) {
308 ret = vmw_sou_fifo_destroy(dev_priv, sou);
309 if (ret)
310 DRM_ERROR("Failed to destroy Screen Object\n");
311 }
312}
313
314static const struct drm_crtc_funcs vmw_screen_object_crtc_funcs = {
315 .gamma_set = vmw_du_crtc_gamma_set,
316 .destroy = vmw_sou_crtc_destroy,
317 .reset = vmw_du_crtc_reset,
318 .atomic_duplicate_state = vmw_du_crtc_duplicate_state,
319 .atomic_destroy_state = vmw_du_crtc_destroy_state,
320 .set_config = drm_atomic_helper_set_config,
321 .page_flip = drm_atomic_helper_page_flip,
322};
323
324/*
325 * Screen Object Display Unit encoder functions
326 */
327
328static void vmw_sou_encoder_destroy(struct drm_encoder *encoder)
329{
330 vmw_sou_destroy(vmw_encoder_to_sou(encoder));
331}
332
333static const struct drm_encoder_funcs vmw_screen_object_encoder_funcs = {
334 .destroy = vmw_sou_encoder_destroy,
335};
336
337/*
338 * Screen Object Display Unit connector functions
339 */
340
341static void vmw_sou_connector_destroy(struct drm_connector *connector)
342{
343 vmw_sou_destroy(vmw_connector_to_sou(connector));
344}
345
346static const struct drm_connector_funcs vmw_sou_connector_funcs = {
347 .dpms = vmw_du_connector_dpms,
348 .detect = vmw_du_connector_detect,
349 .fill_modes = vmw_du_connector_fill_modes,
350 .destroy = vmw_sou_connector_destroy,
351 .reset = vmw_du_connector_reset,
352 .atomic_duplicate_state = vmw_du_connector_duplicate_state,
353 .atomic_destroy_state = vmw_du_connector_destroy_state,
354};
355
356
357static const struct
358drm_connector_helper_funcs vmw_sou_connector_helper_funcs = {
359};
360
361
362
363/*
364 * Screen Object Display Plane Functions
365 */
366
367/**
368 * vmw_sou_primary_plane_cleanup_fb - Frees sou backing buffer
369 *
370 * @plane: display plane
371 * @old_state: Contains the FB to clean up
372 *
373 * Unpins the display surface
374 *
375 * Returns 0 on success
376 */
377static void
378vmw_sou_primary_plane_cleanup_fb(struct drm_plane *plane,
379 struct drm_plane_state *old_state)
380{
381 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
382 struct drm_crtc *crtc = plane->state->crtc ?
383 plane->state->crtc : old_state->crtc;
384
385 if (vps->bo)
386 vmw_bo_unpin(vmw_priv(crtc->dev), vps->bo, false);
387 vmw_bo_unreference(&vps->bo);
388 vps->bo_size = 0;
389
390 vmw_du_plane_cleanup_fb(plane, old_state);
391}
392
393
394/**
395 * vmw_sou_primary_plane_prepare_fb - allocate backing buffer
396 *
397 * @plane: display plane
398 * @new_state: info on the new plane state, including the FB
399 *
400 * The SOU backing buffer is our equivalent of the display plane.
401 *
402 * Returns 0 on success
403 */
404static int
405vmw_sou_primary_plane_prepare_fb(struct drm_plane *plane,
406 struct drm_plane_state *new_state)
407{
408 struct drm_framebuffer *new_fb = new_state->fb;
409 struct drm_crtc *crtc = plane->state->crtc ?: new_state->crtc;
410 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
411 struct vmw_private *dev_priv;
412 size_t size;
413 int ret;
414
415
416 if (!new_fb) {
417 vmw_bo_unreference(&vps->bo);
418 vps->bo_size = 0;
419
420 return 0;
421 }
422
423 size = new_state->crtc_w * new_state->crtc_h * 4;
424 dev_priv = vmw_priv(crtc->dev);
425
426 if (vps->bo) {
427 if (vps->bo_size == size) {
428 /*
429 * Note that this might temporarily up the pin-count
430 * to 2, until cleanup_fb() is called.
431 */
432 return vmw_bo_pin_in_vram(dev_priv, vps->bo,
433 true);
434 }
435
436 vmw_bo_unreference(&vps->bo);
437 vps->bo_size = 0;
438 }
439
440 vps->bo = kzalloc(sizeof(*vps->bo), GFP_KERNEL);
441 if (!vps->bo)
442 return -ENOMEM;
443
444 vmw_svga_enable(dev_priv);
445
446 /* After we have alloced the backing store might not be able to
447 * resume the overlays, this is preferred to failing to alloc.
448 */
449 vmw_overlay_pause_all(dev_priv);
450 ret = vmw_bo_init(dev_priv, vps->bo, size,
451 &vmw_vram_ne_placement,
452 false, &vmw_bo_bo_free);
453 vmw_overlay_resume_all(dev_priv);
454 if (ret) {
455 vps->bo = NULL; /* vmw_bo_init frees on error */
456 return ret;
457 }
458
459 vps->bo_size = size;
460
461 /*
462 * TTM already thinks the buffer is pinned, but make sure the
463 * pin_count is upped.
464 */
465 return vmw_bo_pin_in_vram(dev_priv, vps->bo, true);
466}
467
468static uint32_t vmw_sou_bo_fifo_size(struct vmw_du_update_plane *update,
469 uint32_t num_hits)
470{
471 return sizeof(struct vmw_kms_sou_define_gmrfb) +
472 sizeof(struct vmw_kms_sou_bo_blit) * num_hits;
473}
474
475static uint32_t vmw_sou_bo_define_gmrfb(struct vmw_du_update_plane *update,
476 void *cmd)
477{
478 struct vmw_framebuffer_bo *vfbbo =
479 container_of(update->vfb, typeof(*vfbbo), base);
480 struct vmw_kms_sou_define_gmrfb *gmr = cmd;
481 int depth = update->vfb->base.format->depth;
482
483 /* Emulate RGBA support, contrary to svga_reg.h this is not
484 * supported by hosts. This is only a problem if we are reading
485 * this value later and expecting what we uploaded back.
486 */
487 if (depth == 32)
488 depth = 24;
489
490 gmr->header = SVGA_CMD_DEFINE_GMRFB;
491
492 gmr->body.format.bitsPerPixel = update->vfb->base.format->cpp[0] * 8;
493 gmr->body.format.colorDepth = depth;
494 gmr->body.format.reserved = 0;
495 gmr->body.bytesPerLine = update->vfb->base.pitches[0];
496 vmw_bo_get_guest_ptr(&vfbbo->buffer->base, &gmr->body.ptr);
497
498 return sizeof(*gmr);
499}
500
501static uint32_t vmw_sou_bo_populate_clip(struct vmw_du_update_plane *update,
502 void *cmd, struct drm_rect *clip,
503 uint32_t fb_x, uint32_t fb_y)
504{
505 struct vmw_kms_sou_bo_blit *blit = cmd;
506
507 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
508 blit->body.destScreenId = update->du->unit;
509 blit->body.srcOrigin.x = fb_x;
510 blit->body.srcOrigin.y = fb_y;
511 blit->body.destRect.left = clip->x1;
512 blit->body.destRect.top = clip->y1;
513 blit->body.destRect.right = clip->x2;
514 blit->body.destRect.bottom = clip->y2;
515
516 return sizeof(*blit);
517}
518
519static uint32_t vmw_stud_bo_post_clip(struct vmw_du_update_plane *update,
520 void *cmd, struct drm_rect *bb)
521{
522 return 0;
523}
524
525/**
526 * vmw_sou_plane_update_bo - Update display unit for bo backed fb.
527 * @dev_priv: Device private.
528 * @plane: Plane state.
529 * @old_state: Old plane state.
530 * @vfb: Framebuffer which is blitted to display unit.
531 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj.
532 * The returned fence pointer may be NULL in which case the device
533 * has already synchronized.
534 *
535 * Return: 0 on success or a negative error code on failure.
536 */
537static int vmw_sou_plane_update_bo(struct vmw_private *dev_priv,
538 struct drm_plane *plane,
539 struct drm_plane_state *old_state,
540 struct vmw_framebuffer *vfb,
541 struct vmw_fence_obj **out_fence)
542{
543 struct vmw_du_update_plane_buffer bo_update;
544
545 memset(&bo_update, 0, sizeof(struct vmw_du_update_plane_buffer));
546 bo_update.base.plane = plane;
547 bo_update.base.old_state = old_state;
548 bo_update.base.dev_priv = dev_priv;
549 bo_update.base.du = vmw_crtc_to_du(plane->state->crtc);
550 bo_update.base.vfb = vfb;
551 bo_update.base.out_fence = out_fence;
552 bo_update.base.mutex = NULL;
553 bo_update.base.cpu_blit = false;
554 bo_update.base.intr = true;
555
556 bo_update.base.calc_fifo_size = vmw_sou_bo_fifo_size;
557 bo_update.base.post_prepare = vmw_sou_bo_define_gmrfb;
558 bo_update.base.clip = vmw_sou_bo_populate_clip;
559 bo_update.base.post_clip = vmw_stud_bo_post_clip;
560
561 return vmw_du_helper_plane_update(&bo_update.base);
562}
563
564static uint32_t vmw_sou_surface_fifo_size(struct vmw_du_update_plane *update,
565 uint32_t num_hits)
566{
567 return sizeof(struct vmw_kms_sou_dirty_cmd) + sizeof(SVGASignedRect) *
568 num_hits;
569}
570
571static uint32_t vmw_sou_surface_post_prepare(struct vmw_du_update_plane *update,
572 void *cmd)
573{
574 struct vmw_du_update_plane_surface *srf_update;
575
576 srf_update = container_of(update, typeof(*srf_update), base);
577
578 /*
579 * SOU SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN is special in the sense that
580 * its bounding box is filled before iterating over all the clips. So
581 * store the FIFO start address and revisit to fill the details.
582 */
583 srf_update->cmd_start = cmd;
584
585 return 0;
586}
587
588static uint32_t vmw_sou_surface_pre_clip(struct vmw_du_update_plane *update,
589 void *cmd, uint32_t num_hits)
590{
591 struct vmw_kms_sou_dirty_cmd *blit = cmd;
592 struct vmw_framebuffer_surface *vfbs;
593
594 vfbs = container_of(update->vfb, typeof(*vfbs), base);
595
596 blit->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN;
597 blit->header.size = sizeof(blit->body) + sizeof(SVGASignedRect) *
598 num_hits;
599
600 blit->body.srcImage.sid = vfbs->surface->res.id;
601 blit->body.destScreenId = update->du->unit;
602
603 /* Update the source and destination bounding box later in post_clip */
604 blit->body.srcRect.left = 0;
605 blit->body.srcRect.top = 0;
606 blit->body.srcRect.right = 0;
607 blit->body.srcRect.bottom = 0;
608
609 blit->body.destRect.left = 0;
610 blit->body.destRect.top = 0;
611 blit->body.destRect.right = 0;
612 blit->body.destRect.bottom = 0;
613
614 return sizeof(*blit);
615}
616
617static uint32_t vmw_sou_surface_clip_rect(struct vmw_du_update_plane *update,
618 void *cmd, struct drm_rect *clip,
619 uint32_t src_x, uint32_t src_y)
620{
621 SVGASignedRect *rect = cmd;
622
623 /*
624 * rects are relative to dest bounding box rect on screen object, so
625 * translate to it later in post_clip
626 */
627 rect->left = clip->x1;
628 rect->top = clip->y1;
629 rect->right = clip->x2;
630 rect->bottom = clip->y2;
631
632 return sizeof(*rect);
633}
634
635static uint32_t vmw_sou_surface_post_clip(struct vmw_du_update_plane *update,
636 void *cmd, struct drm_rect *bb)
637{
638 struct vmw_du_update_plane_surface *srf_update;
639 struct drm_plane_state *state = update->plane->state;
640 struct drm_rect src_bb;
641 struct vmw_kms_sou_dirty_cmd *blit;
642 SVGASignedRect *rect;
643 uint32_t num_hits;
644 int translate_src_x;
645 int translate_src_y;
646 int i;
647
648 srf_update = container_of(update, typeof(*srf_update), base);
649
650 blit = srf_update->cmd_start;
651 rect = (SVGASignedRect *)&blit[1];
652
653 num_hits = (blit->header.size - sizeof(blit->body))/
654 sizeof(SVGASignedRect);
655
656 src_bb = *bb;
657
658 /* To translate bb back to fb src coord */
659 translate_src_x = (state->src_x >> 16) - state->crtc_x;
660 translate_src_y = (state->src_y >> 16) - state->crtc_y;
661
662 drm_rect_translate(&src_bb, translate_src_x, translate_src_y);
663
664 blit->body.srcRect.left = src_bb.x1;
665 blit->body.srcRect.top = src_bb.y1;
666 blit->body.srcRect.right = src_bb.x2;
667 blit->body.srcRect.bottom = src_bb.y2;
668
669 blit->body.destRect.left = bb->x1;
670 blit->body.destRect.top = bb->y1;
671 blit->body.destRect.right = bb->x2;
672 blit->body.destRect.bottom = bb->y2;
673
674 /* rects are relative to dest bb rect */
675 for (i = 0; i < num_hits; i++) {
676 rect->left -= bb->x1;
677 rect->top -= bb->y1;
678 rect->right -= bb->x1;
679 rect->bottom -= bb->y1;
680 rect++;
681 }
682
683 return 0;
684}
685
686/**
687 * vmw_sou_plane_update_surface - Update display unit for surface backed fb.
688 * @dev_priv: Device private.
689 * @plane: Plane state.
690 * @old_state: Old plane state.
691 * @vfb: Framebuffer which is blitted to display unit
692 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj.
693 * The returned fence pointer may be NULL in which case the device
694 * has already synchronized.
695 *
696 * Return: 0 on success or a negative error code on failure.
697 */
698static int vmw_sou_plane_update_surface(struct vmw_private *dev_priv,
699 struct drm_plane *plane,
700 struct drm_plane_state *old_state,
701 struct vmw_framebuffer *vfb,
702 struct vmw_fence_obj **out_fence)
703{
704 struct vmw_du_update_plane_surface srf_update;
705
706 memset(&srf_update, 0, sizeof(struct vmw_du_update_plane_surface));
707 srf_update.base.plane = plane;
708 srf_update.base.old_state = old_state;
709 srf_update.base.dev_priv = dev_priv;
710 srf_update.base.du = vmw_crtc_to_du(plane->state->crtc);
711 srf_update.base.vfb = vfb;
712 srf_update.base.out_fence = out_fence;
713 srf_update.base.mutex = &dev_priv->cmdbuf_mutex;
714 srf_update.base.cpu_blit = false;
715 srf_update.base.intr = true;
716
717 srf_update.base.calc_fifo_size = vmw_sou_surface_fifo_size;
718 srf_update.base.post_prepare = vmw_sou_surface_post_prepare;
719 srf_update.base.pre_clip = vmw_sou_surface_pre_clip;
720 srf_update.base.clip = vmw_sou_surface_clip_rect;
721 srf_update.base.post_clip = vmw_sou_surface_post_clip;
722
723 return vmw_du_helper_plane_update(&srf_update.base);
724}
725
726static void
727vmw_sou_primary_plane_atomic_update(struct drm_plane *plane,
728 struct drm_plane_state *old_state)
729{
730 struct drm_crtc *crtc = plane->state->crtc;
731 struct drm_pending_vblank_event *event = NULL;
732 struct vmw_fence_obj *fence = NULL;
733 int ret;
734
735 /* In case of device error, maintain consistent atomic state */
736 if (crtc && plane->state->fb) {
737 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
738 struct vmw_framebuffer *vfb =
739 vmw_framebuffer_to_vfb(plane->state->fb);
740
741 if (vfb->bo)
742 ret = vmw_sou_plane_update_bo(dev_priv, plane,
743 old_state, vfb, &fence);
744 else
745 ret = vmw_sou_plane_update_surface(dev_priv, plane,
746 old_state, vfb,
747 &fence);
748 if (ret != 0)
749 DRM_ERROR("Failed to update screen.\n");
750 } else {
751 /* Do nothing when fb and crtc is NULL (blank crtc) */
752 return;
753 }
754
755 /* For error case vblank event is send from vmw_du_crtc_atomic_flush */
756 event = crtc->state->event;
757 if (event && fence) {
758 struct drm_file *file_priv = event->base.file_priv;
759
760 ret = vmw_event_fence_action_queue(file_priv,
761 fence,
762 &event->base,
763 &event->event.vbl.tv_sec,
764 &event->event.vbl.tv_usec,
765 true);
766
767 if (unlikely(ret != 0))
768 DRM_ERROR("Failed to queue event on fence.\n");
769 else
770 crtc->state->event = NULL;
771 }
772
773 if (fence)
774 vmw_fence_obj_unreference(&fence);
775}
776
777
778static const struct drm_plane_funcs vmw_sou_plane_funcs = {
779 .update_plane = drm_atomic_helper_update_plane,
780 .disable_plane = drm_atomic_helper_disable_plane,
781 .destroy = vmw_du_primary_plane_destroy,
782 .reset = vmw_du_plane_reset,
783 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
784 .atomic_destroy_state = vmw_du_plane_destroy_state,
785};
786
787static const struct drm_plane_funcs vmw_sou_cursor_funcs = {
788 .update_plane = drm_atomic_helper_update_plane,
789 .disable_plane = drm_atomic_helper_disable_plane,
790 .destroy = vmw_du_cursor_plane_destroy,
791 .reset = vmw_du_plane_reset,
792 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
793 .atomic_destroy_state = vmw_du_plane_destroy_state,
794};
795
796/*
797 * Atomic Helpers
798 */
799static const struct
800drm_plane_helper_funcs vmw_sou_cursor_plane_helper_funcs = {
801 .atomic_check = vmw_du_cursor_plane_atomic_check,
802 .atomic_update = vmw_du_cursor_plane_atomic_update,
803 .prepare_fb = vmw_du_cursor_plane_prepare_fb,
804 .cleanup_fb = vmw_du_plane_cleanup_fb,
805};
806
807static const struct
808drm_plane_helper_funcs vmw_sou_primary_plane_helper_funcs = {
809 .atomic_check = vmw_du_primary_plane_atomic_check,
810 .atomic_update = vmw_sou_primary_plane_atomic_update,
811 .prepare_fb = vmw_sou_primary_plane_prepare_fb,
812 .cleanup_fb = vmw_sou_primary_plane_cleanup_fb,
813};
814
815static const struct drm_crtc_helper_funcs vmw_sou_crtc_helper_funcs = {
816 .prepare = vmw_sou_crtc_helper_prepare,
817 .mode_set_nofb = vmw_sou_crtc_mode_set_nofb,
818 .atomic_check = vmw_du_crtc_atomic_check,
819 .atomic_begin = vmw_du_crtc_atomic_begin,
820 .atomic_flush = vmw_du_crtc_atomic_flush,
821 .atomic_enable = vmw_sou_crtc_atomic_enable,
822 .atomic_disable = vmw_sou_crtc_atomic_disable,
823};
824
825
826static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit)
827{
828 struct vmw_screen_object_unit *sou;
829 struct drm_device *dev = dev_priv->dev;
830 struct drm_connector *connector;
831 struct drm_encoder *encoder;
832 struct drm_plane *primary, *cursor;
833 struct drm_crtc *crtc;
834 int ret;
835
836 sou = kzalloc(sizeof(*sou), GFP_KERNEL);
837 if (!sou)
838 return -ENOMEM;
839
840 sou->base.unit = unit;
841 crtc = &sou->base.crtc;
842 encoder = &sou->base.encoder;
843 connector = &sou->base.connector;
844 primary = &sou->base.primary;
845 cursor = &sou->base.cursor;
846
847 sou->base.pref_active = (unit == 0);
848 sou->base.pref_width = dev_priv->initial_width;
849 sou->base.pref_height = dev_priv->initial_height;
850 sou->base.pref_mode = NULL;
851
852 /*
853 * Remove this after enabling atomic because property values can
854 * only exist in a state object
855 */
856 sou->base.is_implicit = false;
857
858 /* Initialize primary plane */
859 vmw_du_plane_reset(primary);
860
861 ret = drm_universal_plane_init(dev, &sou->base.primary,
862 0, &vmw_sou_plane_funcs,
863 vmw_primary_plane_formats,
864 ARRAY_SIZE(vmw_primary_plane_formats),
865 NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
866 if (ret) {
867 DRM_ERROR("Failed to initialize primary plane");
868 goto err_free;
869 }
870
871 drm_plane_helper_add(primary, &vmw_sou_primary_plane_helper_funcs);
872 drm_plane_enable_fb_damage_clips(primary);
873
874 /* Initialize cursor plane */
875 vmw_du_plane_reset(cursor);
876
877 ret = drm_universal_plane_init(dev, &sou->base.cursor,
878 0, &vmw_sou_cursor_funcs,
879 vmw_cursor_plane_formats,
880 ARRAY_SIZE(vmw_cursor_plane_formats),
881 NULL, DRM_PLANE_TYPE_CURSOR, NULL);
882 if (ret) {
883 DRM_ERROR("Failed to initialize cursor plane");
884 drm_plane_cleanup(&sou->base.primary);
885 goto err_free;
886 }
887
888 drm_plane_helper_add(cursor, &vmw_sou_cursor_plane_helper_funcs);
889
890 vmw_du_connector_reset(connector);
891 ret = drm_connector_init(dev, connector, &vmw_sou_connector_funcs,
892 DRM_MODE_CONNECTOR_VIRTUAL);
893 if (ret) {
894 DRM_ERROR("Failed to initialize connector\n");
895 goto err_free;
896 }
897
898 drm_connector_helper_add(connector, &vmw_sou_connector_helper_funcs);
899 connector->status = vmw_du_connector_detect(connector, true);
900
901 ret = drm_encoder_init(dev, encoder, &vmw_screen_object_encoder_funcs,
902 DRM_MODE_ENCODER_VIRTUAL, NULL);
903 if (ret) {
904 DRM_ERROR("Failed to initialize encoder\n");
905 goto err_free_connector;
906 }
907
908 (void) drm_connector_attach_encoder(connector, encoder);
909 encoder->possible_crtcs = (1 << unit);
910 encoder->possible_clones = 0;
911
912 ret = drm_connector_register(connector);
913 if (ret) {
914 DRM_ERROR("Failed to register connector\n");
915 goto err_free_encoder;
916 }
917
918
919 vmw_du_crtc_reset(crtc);
920 ret = drm_crtc_init_with_planes(dev, crtc, &sou->base.primary,
921 &sou->base.cursor,
922 &vmw_screen_object_crtc_funcs, NULL);
923 if (ret) {
924 DRM_ERROR("Failed to initialize CRTC\n");
925 goto err_free_unregister;
926 }
927
928 drm_crtc_helper_add(crtc, &vmw_sou_crtc_helper_funcs);
929
930 drm_mode_crtc_set_gamma_size(crtc, 256);
931
932 drm_object_attach_property(&connector->base,
933 dev_priv->hotplug_mode_update_property, 1);
934 drm_object_attach_property(&connector->base,
935 dev->mode_config.suggested_x_property, 0);
936 drm_object_attach_property(&connector->base,
937 dev->mode_config.suggested_y_property, 0);
938 return 0;
939
940err_free_unregister:
941 drm_connector_unregister(connector);
942err_free_encoder:
943 drm_encoder_cleanup(encoder);
944err_free_connector:
945 drm_connector_cleanup(connector);
946err_free:
947 kfree(sou);
948 return ret;
949}
950
951int vmw_kms_sou_init_display(struct vmw_private *dev_priv)
952{
953 struct drm_device *dev = dev_priv->dev;
954 int i, ret;
955
956 if (!(dev_priv->capabilities & SVGA_CAP_SCREEN_OBJECT_2)) {
957 DRM_INFO("Not using screen objects,"
958 " missing cap SCREEN_OBJECT_2\n");
959 return -ENOSYS;
960 }
961
962 ret = -ENOMEM;
963
964 ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS);
965 if (unlikely(ret != 0))
966 return ret;
967
968 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
969 vmw_sou_init(dev_priv, i);
970
971 dev_priv->active_display_unit = vmw_du_screen_object;
972
973 DRM_INFO("Screen Objects Display Unit initialized\n");
974
975 return 0;
976}
977
978static int do_bo_define_gmrfb(struct vmw_private *dev_priv,
979 struct vmw_framebuffer *framebuffer)
980{
981 struct vmw_buffer_object *buf =
982 container_of(framebuffer, struct vmw_framebuffer_bo,
983 base)->buffer;
984 int depth = framebuffer->base.format->depth;
985 struct {
986 uint32_t header;
987 SVGAFifoCmdDefineGMRFB body;
988 } *cmd;
989
990 /* Emulate RGBA support, contrary to svga_reg.h this is not
991 * supported by hosts. This is only a problem if we are reading
992 * this value later and expecting what we uploaded back.
993 */
994 if (depth == 32)
995 depth = 24;
996
997 cmd = VMW_FIFO_RESERVE(dev_priv, sizeof(*cmd));
998 if (!cmd)
999 return -ENOMEM;
1000
1001 cmd->header = SVGA_CMD_DEFINE_GMRFB;
1002 cmd->body.format.bitsPerPixel = framebuffer->base.format->cpp[0] * 8;
1003 cmd->body.format.colorDepth = depth;
1004 cmd->body.format.reserved = 0;
1005 cmd->body.bytesPerLine = framebuffer->base.pitches[0];
1006 /* Buffer is reserved in vram or GMR */
1007 vmw_bo_get_guest_ptr(&buf->base, &cmd->body.ptr);
1008 vmw_fifo_commit(dev_priv, sizeof(*cmd));
1009
1010 return 0;
1011}
1012
1013/**
1014 * vmw_sou_surface_fifo_commit - Callback to fill in and submit a
1015 * blit surface to screen command.
1016 *
1017 * @dirty: The closure structure.
1018 *
1019 * Fills in the missing fields in the command, and translates the cliprects
1020 * to match the destination bounding box encoded.
1021 */
1022static void vmw_sou_surface_fifo_commit(struct vmw_kms_dirty *dirty)
1023{
1024 struct vmw_kms_sou_surface_dirty *sdirty =
1025 container_of(dirty, typeof(*sdirty), base);
1026 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd;
1027 s32 trans_x = dirty->unit->crtc.x - sdirty->dst_x;
1028 s32 trans_y = dirty->unit->crtc.y - sdirty->dst_y;
1029 size_t region_size = dirty->num_hits * sizeof(SVGASignedRect);
1030 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1];
1031 int i;
1032
1033 if (!dirty->num_hits) {
1034 vmw_fifo_commit(dirty->dev_priv, 0);
1035 return;
1036 }
1037
1038 cmd->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN;
1039 cmd->header.size = sizeof(cmd->body) + region_size;
1040
1041 /*
1042 * Use the destination bounding box to specify destination - and
1043 * source bounding regions.
1044 */
1045 cmd->body.destRect.left = sdirty->left;
1046 cmd->body.destRect.right = sdirty->right;
1047 cmd->body.destRect.top = sdirty->top;
1048 cmd->body.destRect.bottom = sdirty->bottom;
1049
1050 cmd->body.srcRect.left = sdirty->left + trans_x;
1051 cmd->body.srcRect.right = sdirty->right + trans_x;
1052 cmd->body.srcRect.top = sdirty->top + trans_y;
1053 cmd->body.srcRect.bottom = sdirty->bottom + trans_y;
1054
1055 cmd->body.srcImage.sid = sdirty->sid;
1056 cmd->body.destScreenId = dirty->unit->unit;
1057
1058 /* Blits are relative to the destination rect. Translate. */
1059 for (i = 0; i < dirty->num_hits; ++i, ++blit) {
1060 blit->left -= sdirty->left;
1061 blit->right -= sdirty->left;
1062 blit->top -= sdirty->top;
1063 blit->bottom -= sdirty->top;
1064 }
1065
1066 vmw_fifo_commit(dirty->dev_priv, region_size + sizeof(*cmd));
1067
1068 sdirty->left = sdirty->top = S32_MAX;
1069 sdirty->right = sdirty->bottom = S32_MIN;
1070}
1071
1072/**
1073 * vmw_sou_surface_clip - Callback to encode a blit surface to screen cliprect.
1074 *
1075 * @dirty: The closure structure
1076 *
1077 * Encodes a SVGASignedRect cliprect and updates the bounding box of the
1078 * BLIT_SURFACE_TO_SCREEN command.
1079 */
1080static void vmw_sou_surface_clip(struct vmw_kms_dirty *dirty)
1081{
1082 struct vmw_kms_sou_surface_dirty *sdirty =
1083 container_of(dirty, typeof(*sdirty), base);
1084 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd;
1085 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1];
1086
1087 /* Destination rect. */
1088 blit += dirty->num_hits;
1089 blit->left = dirty->unit_x1;
1090 blit->top = dirty->unit_y1;
1091 blit->right = dirty->unit_x2;
1092 blit->bottom = dirty->unit_y2;
1093
1094 /* Destination bounding box */
1095 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1);
1096 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1);
1097 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2);
1098 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2);
1099
1100 dirty->num_hits++;
1101}
1102
1103/**
1104 * vmw_kms_sou_do_surface_dirty - Dirty part of a surface backed framebuffer
1105 *
1106 * @dev_priv: Pointer to the device private structure.
1107 * @framebuffer: Pointer to the surface-buffer backed framebuffer.
1108 * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
1109 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
1110 * be NULL.
1111 * @srf: Pointer to surface to blit from. If NULL, the surface attached
1112 * to @framebuffer will be used.
1113 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates.
1114 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates.
1115 * @num_clips: Number of clip rects in @clips.
1116 * @inc: Increment to use when looping over @clips.
1117 * @out_fence: If non-NULL, will return a ref-counted pointer to a
1118 * struct vmw_fence_obj. The returned fence pointer may be NULL in which
1119 * case the device has already synchronized.
1120 * @crtc: If crtc is passed, perform surface dirty on that crtc only.
1121 *
1122 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
1123 * interrupted.
1124 */
1125int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv,
1126 struct vmw_framebuffer *framebuffer,
1127 struct drm_clip_rect *clips,
1128 struct drm_vmw_rect *vclips,
1129 struct vmw_resource *srf,
1130 s32 dest_x,
1131 s32 dest_y,
1132 unsigned num_clips, int inc,
1133 struct vmw_fence_obj **out_fence,
1134 struct drm_crtc *crtc)
1135{
1136 struct vmw_framebuffer_surface *vfbs =
1137 container_of(framebuffer, typeof(*vfbs), base);
1138 struct vmw_kms_sou_surface_dirty sdirty;
1139 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
1140 int ret;
1141
1142 if (!srf)
1143 srf = &vfbs->surface->res;
1144
1145 ret = vmw_validation_add_resource(&val_ctx, srf, 0, VMW_RES_DIRTY_NONE,
1146 NULL, NULL);
1147 if (ret)
1148 return ret;
1149
1150 ret = vmw_validation_prepare(&val_ctx, &dev_priv->cmdbuf_mutex, true);
1151 if (ret)
1152 goto out_unref;
1153
1154 sdirty.base.fifo_commit = vmw_sou_surface_fifo_commit;
1155 sdirty.base.clip = vmw_sou_surface_clip;
1156 sdirty.base.dev_priv = dev_priv;
1157 sdirty.base.fifo_reserve_size = sizeof(struct vmw_kms_sou_dirty_cmd) +
1158 sizeof(SVGASignedRect) * num_clips;
1159 sdirty.base.crtc = crtc;
1160
1161 sdirty.sid = srf->id;
1162 sdirty.left = sdirty.top = S32_MAX;
1163 sdirty.right = sdirty.bottom = S32_MIN;
1164 sdirty.dst_x = dest_x;
1165 sdirty.dst_y = dest_y;
1166
1167 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
1168 dest_x, dest_y, num_clips, inc,
1169 &sdirty.base);
1170 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence,
1171 NULL);
1172
1173 return ret;
1174
1175out_unref:
1176 vmw_validation_unref_lists(&val_ctx);
1177 return ret;
1178}
1179
1180/**
1181 * vmw_sou_bo_fifo_commit - Callback to submit a set of readback clips.
1182 *
1183 * @dirty: The closure structure.
1184 *
1185 * Commits a previously built command buffer of readback clips.
1186 */
1187static void vmw_sou_bo_fifo_commit(struct vmw_kms_dirty *dirty)
1188{
1189 if (!dirty->num_hits) {
1190 vmw_fifo_commit(dirty->dev_priv, 0);
1191 return;
1192 }
1193
1194 vmw_fifo_commit(dirty->dev_priv,
1195 sizeof(struct vmw_kms_sou_bo_blit) *
1196 dirty->num_hits);
1197}
1198
1199/**
1200 * vmw_sou_bo_clip - Callback to encode a readback cliprect.
1201 *
1202 * @dirty: The closure structure
1203 *
1204 * Encodes a BLIT_GMRFB_TO_SCREEN cliprect.
1205 */
1206static void vmw_sou_bo_clip(struct vmw_kms_dirty *dirty)
1207{
1208 struct vmw_kms_sou_bo_blit *blit = dirty->cmd;
1209
1210 blit += dirty->num_hits;
1211 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
1212 blit->body.destScreenId = dirty->unit->unit;
1213 blit->body.srcOrigin.x = dirty->fb_x;
1214 blit->body.srcOrigin.y = dirty->fb_y;
1215 blit->body.destRect.left = dirty->unit_x1;
1216 blit->body.destRect.top = dirty->unit_y1;
1217 blit->body.destRect.right = dirty->unit_x2;
1218 blit->body.destRect.bottom = dirty->unit_y2;
1219 dirty->num_hits++;
1220}
1221
1222/**
1223 * vmw_kms_do_bo_dirty - Dirty part of a buffer-object backed framebuffer
1224 *
1225 * @dev_priv: Pointer to the device private structure.
1226 * @framebuffer: Pointer to the buffer-object backed framebuffer.
1227 * @clips: Array of clip rects.
1228 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
1229 * be NULL.
1230 * @num_clips: Number of clip rects in @clips.
1231 * @increment: Increment to use when looping over @clips.
1232 * @interruptible: Whether to perform waits interruptible if possible.
1233 * @out_fence: If non-NULL, will return a ref-counted pointer to a
1234 * struct vmw_fence_obj. The returned fence pointer may be NULL in which
1235 * case the device has already synchronized.
1236 * @crtc: If crtc is passed, perform bo dirty on that crtc only.
1237 *
1238 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
1239 * interrupted.
1240 */
1241int vmw_kms_sou_do_bo_dirty(struct vmw_private *dev_priv,
1242 struct vmw_framebuffer *framebuffer,
1243 struct drm_clip_rect *clips,
1244 struct drm_vmw_rect *vclips,
1245 unsigned num_clips, int increment,
1246 bool interruptible,
1247 struct vmw_fence_obj **out_fence,
1248 struct drm_crtc *crtc)
1249{
1250 struct vmw_buffer_object *buf =
1251 container_of(framebuffer, struct vmw_framebuffer_bo,
1252 base)->buffer;
1253 struct vmw_kms_dirty dirty;
1254 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
1255 int ret;
1256
1257 ret = vmw_validation_add_bo(&val_ctx, buf, false, false);
1258 if (ret)
1259 return ret;
1260
1261 ret = vmw_validation_prepare(&val_ctx, NULL, interruptible);
1262 if (ret)
1263 goto out_unref;
1264
1265 ret = do_bo_define_gmrfb(dev_priv, framebuffer);
1266 if (unlikely(ret != 0))
1267 goto out_revert;
1268
1269 dirty.crtc = crtc;
1270 dirty.fifo_commit = vmw_sou_bo_fifo_commit;
1271 dirty.clip = vmw_sou_bo_clip;
1272 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_bo_blit) *
1273 num_clips;
1274 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
1275 0, 0, num_clips, increment, &dirty);
1276 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence,
1277 NULL);
1278
1279 return ret;
1280
1281out_revert:
1282 vmw_validation_revert(&val_ctx);
1283out_unref:
1284 vmw_validation_unref_lists(&val_ctx);
1285
1286 return ret;
1287}
1288
1289
1290/**
1291 * vmw_sou_readback_fifo_commit - Callback to submit a set of readback clips.
1292 *
1293 * @dirty: The closure structure.
1294 *
1295 * Commits a previously built command buffer of readback clips.
1296 */
1297static void vmw_sou_readback_fifo_commit(struct vmw_kms_dirty *dirty)
1298{
1299 if (!dirty->num_hits) {
1300 vmw_fifo_commit(dirty->dev_priv, 0);
1301 return;
1302 }
1303
1304 vmw_fifo_commit(dirty->dev_priv,
1305 sizeof(struct vmw_kms_sou_readback_blit) *
1306 dirty->num_hits);
1307}
1308
1309/**
1310 * vmw_sou_readback_clip - Callback to encode a readback cliprect.
1311 *
1312 * @dirty: The closure structure
1313 *
1314 * Encodes a BLIT_SCREEN_TO_GMRFB cliprect.
1315 */
1316static void vmw_sou_readback_clip(struct vmw_kms_dirty *dirty)
1317{
1318 struct vmw_kms_sou_readback_blit *blit = dirty->cmd;
1319
1320 blit += dirty->num_hits;
1321 blit->header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
1322 blit->body.srcScreenId = dirty->unit->unit;
1323 blit->body.destOrigin.x = dirty->fb_x;
1324 blit->body.destOrigin.y = dirty->fb_y;
1325 blit->body.srcRect.left = dirty->unit_x1;
1326 blit->body.srcRect.top = dirty->unit_y1;
1327 blit->body.srcRect.right = dirty->unit_x2;
1328 blit->body.srcRect.bottom = dirty->unit_y2;
1329 dirty->num_hits++;
1330}
1331
1332/**
1333 * vmw_kms_sou_readback - Perform a readback from the screen object system to
1334 * a buffer-object backed framebuffer.
1335 *
1336 * @dev_priv: Pointer to the device private structure.
1337 * @file_priv: Pointer to a struct drm_file identifying the caller.
1338 * Must be set to NULL if @user_fence_rep is NULL.
1339 * @vfb: Pointer to the buffer-object backed framebuffer.
1340 * @user_fence_rep: User-space provided structure for fence information.
1341 * Must be set to non-NULL if @file_priv is non-NULL.
1342 * @vclips: Array of clip rects.
1343 * @num_clips: Number of clip rects in @vclips.
1344 * @crtc: If crtc is passed, readback on that crtc only.
1345 *
1346 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
1347 * interrupted.
1348 */
1349int vmw_kms_sou_readback(struct vmw_private *dev_priv,
1350 struct drm_file *file_priv,
1351 struct vmw_framebuffer *vfb,
1352 struct drm_vmw_fence_rep __user *user_fence_rep,
1353 struct drm_vmw_rect *vclips,
1354 uint32_t num_clips,
1355 struct drm_crtc *crtc)
1356{
1357 struct vmw_buffer_object *buf =
1358 container_of(vfb, struct vmw_framebuffer_bo, base)->buffer;
1359 struct vmw_kms_dirty dirty;
1360 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
1361 int ret;
1362
1363 ret = vmw_validation_add_bo(&val_ctx, buf, false, false);
1364 if (ret)
1365 return ret;
1366
1367 ret = vmw_validation_prepare(&val_ctx, NULL, true);
1368 if (ret)
1369 goto out_unref;
1370
1371 ret = do_bo_define_gmrfb(dev_priv, vfb);
1372 if (unlikely(ret != 0))
1373 goto out_revert;
1374
1375 dirty.crtc = crtc;
1376 dirty.fifo_commit = vmw_sou_readback_fifo_commit;
1377 dirty.clip = vmw_sou_readback_clip;
1378 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_readback_blit) *
1379 num_clips;
1380 ret = vmw_kms_helper_dirty(dev_priv, vfb, NULL, vclips,
1381 0, 0, num_clips, 1, &dirty);
1382 vmw_kms_helper_validation_finish(dev_priv, file_priv, &val_ctx, NULL,
1383 user_fence_rep);
1384
1385 return ret;
1386
1387out_revert:
1388 vmw_validation_revert(&val_ctx);
1389out_unref:
1390 vmw_validation_unref_lists(&val_ctx);
1391
1392 return ret;
1393}
1// SPDX-License-Identifier: GPL-2.0 OR MIT
2/**************************************************************************
3 *
4 * Copyright 2011-2023 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
31#include <drm/drm_atomic.h>
32#include <drm/drm_atomic_helper.h>
33#include <drm/drm_damage_helper.h>
34#include <drm/drm_fourcc.h>
35
36#define vmw_crtc_to_sou(x) \
37 container_of(x, struct vmw_screen_object_unit, base.crtc)
38#define vmw_encoder_to_sou(x) \
39 container_of(x, struct vmw_screen_object_unit, base.encoder)
40#define vmw_connector_to_sou(x) \
41 container_of(x, struct vmw_screen_object_unit, base.connector)
42
43/**
44 * struct vmw_kms_sou_surface_dirty - Closure structure for
45 * blit surface to screen command.
46 * @base: The base type we derive from. Used by vmw_kms_helper_dirty().
47 * @left: Left side of bounding box.
48 * @right: Right side of bounding box.
49 * @top: Top side of bounding box.
50 * @bottom: Bottom side of bounding box.
51 * @dst_x: Difference between source clip rects and framebuffer coordinates.
52 * @dst_y: Difference between source clip rects and framebuffer coordinates.
53 * @sid: Surface id of surface to copy from.
54 */
55struct vmw_kms_sou_surface_dirty {
56 struct vmw_kms_dirty base;
57 s32 left, right, top, bottom;
58 s32 dst_x, dst_y;
59 u32 sid;
60};
61
62/*
63 * SVGA commands that are used by this code. Please see the device headers
64 * for explanation.
65 */
66struct vmw_kms_sou_readback_blit {
67 uint32 header;
68 SVGAFifoCmdBlitScreenToGMRFB body;
69};
70
71struct vmw_kms_sou_bo_blit {
72 uint32 header;
73 SVGAFifoCmdBlitGMRFBToScreen body;
74};
75
76struct vmw_kms_sou_dirty_cmd {
77 SVGA3dCmdHeader header;
78 SVGA3dCmdBlitSurfaceToScreen body;
79};
80
81struct vmw_kms_sou_define_gmrfb {
82 uint32_t header;
83 SVGAFifoCmdDefineGMRFB body;
84};
85
86/*
87 * Display unit using screen objects.
88 */
89struct vmw_screen_object_unit {
90 struct vmw_display_unit base;
91
92 unsigned long buffer_size; /**< Size of allocated buffer */
93 struct vmw_bo *buffer; /**< Backing store buffer */
94
95 bool defined;
96};
97
98static void vmw_sou_destroy(struct vmw_screen_object_unit *sou)
99{
100 vmw_du_cleanup(&sou->base);
101 kfree(sou);
102}
103
104
105/*
106 * Screen Object Display Unit CRTC functions
107 */
108
109static void vmw_sou_crtc_destroy(struct drm_crtc *crtc)
110{
111 vmw_sou_destroy(vmw_crtc_to_sou(crtc));
112}
113
114/*
115 * Send the fifo command to create a screen.
116 */
117static int vmw_sou_fifo_create(struct vmw_private *dev_priv,
118 struct vmw_screen_object_unit *sou,
119 int x, int y,
120 struct drm_display_mode *mode)
121{
122 size_t fifo_size;
123
124 struct {
125 struct {
126 uint32_t cmdType;
127 } header;
128 SVGAScreenObject obj;
129 } *cmd;
130
131 BUG_ON(!sou->buffer);
132
133 fifo_size = sizeof(*cmd);
134 cmd = VMW_CMD_RESERVE(dev_priv, fifo_size);
135 if (unlikely(cmd == NULL))
136 return -ENOMEM;
137
138 memset(cmd, 0, fifo_size);
139 cmd->header.cmdType = SVGA_CMD_DEFINE_SCREEN;
140 cmd->obj.structSize = sizeof(SVGAScreenObject);
141 cmd->obj.id = sou->base.unit;
142 cmd->obj.flags = SVGA_SCREEN_HAS_ROOT |
143 (sou->base.unit == 0 ? SVGA_SCREEN_IS_PRIMARY : 0);
144 cmd->obj.size.width = mode->hdisplay;
145 cmd->obj.size.height = mode->vdisplay;
146 cmd->obj.root.x = x;
147 cmd->obj.root.y = y;
148 sou->base.set_gui_x = cmd->obj.root.x;
149 sou->base.set_gui_y = cmd->obj.root.y;
150
151 /* Ok to assume that buffer is pinned in vram */
152 vmw_bo_get_guest_ptr(&sou->buffer->tbo, &cmd->obj.backingStore.ptr);
153 cmd->obj.backingStore.pitch = mode->hdisplay * 4;
154
155 vmw_cmd_commit(dev_priv, fifo_size);
156
157 sou->defined = true;
158
159 return 0;
160}
161
162/*
163 * Send the fifo command to destroy a screen.
164 */
165static int vmw_sou_fifo_destroy(struct vmw_private *dev_priv,
166 struct vmw_screen_object_unit *sou)
167{
168 size_t fifo_size;
169 int ret;
170
171 struct {
172 struct {
173 uint32_t cmdType;
174 } header;
175 SVGAFifoCmdDestroyScreen body;
176 } *cmd;
177
178 /* no need to do anything */
179 if (unlikely(!sou->defined))
180 return 0;
181
182 fifo_size = sizeof(*cmd);
183 cmd = VMW_CMD_RESERVE(dev_priv, fifo_size);
184 if (unlikely(cmd == NULL))
185 return -ENOMEM;
186
187 memset(cmd, 0, fifo_size);
188 cmd->header.cmdType = SVGA_CMD_DESTROY_SCREEN;
189 cmd->body.screenId = sou->base.unit;
190
191 vmw_cmd_commit(dev_priv, fifo_size);
192
193 /* Force sync */
194 ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ);
195 if (unlikely(ret != 0))
196 DRM_ERROR("Failed to sync with HW");
197 else
198 sou->defined = false;
199
200 return ret;
201}
202
203/**
204 * vmw_sou_crtc_mode_set_nofb - Create new screen
205 *
206 * @crtc: CRTC associated with the new screen
207 *
208 * This function creates/destroys a screen. This function cannot fail, so if
209 * somehow we run into a failure, just do the best we can to get out.
210 */
211static void vmw_sou_crtc_mode_set_nofb(struct drm_crtc *crtc)
212{
213 struct vmw_private *dev_priv;
214 struct vmw_screen_object_unit *sou;
215 struct vmw_framebuffer *vfb;
216 struct drm_framebuffer *fb;
217 struct drm_plane_state *ps;
218 struct vmw_plane_state *vps;
219 int ret;
220
221 sou = vmw_crtc_to_sou(crtc);
222 dev_priv = vmw_priv(crtc->dev);
223 ps = crtc->primary->state;
224 fb = ps->fb;
225 vps = vmw_plane_state_to_vps(ps);
226
227 vfb = (fb) ? vmw_framebuffer_to_vfb(fb) : NULL;
228
229 if (sou->defined) {
230 ret = vmw_sou_fifo_destroy(dev_priv, sou);
231 if (ret) {
232 DRM_ERROR("Failed to destroy Screen Object\n");
233 return;
234 }
235 }
236
237 if (vfb) {
238 struct drm_connector_state *conn_state;
239 struct vmw_connector_state *vmw_conn_state;
240 int x, y;
241
242 sou->buffer = vps->bo;
243 sou->buffer_size = vps->bo_size;
244
245 conn_state = sou->base.connector.state;
246 vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
247
248 x = vmw_conn_state->gui_x;
249 y = vmw_conn_state->gui_y;
250
251 ret = vmw_sou_fifo_create(dev_priv, sou, x, y, &crtc->mode);
252 if (ret)
253 DRM_ERROR("Failed to define Screen Object %dx%d\n",
254 crtc->x, crtc->y);
255
256 } else {
257 sou->buffer = NULL;
258 sou->buffer_size = 0;
259 }
260}
261
262/**
263 * vmw_sou_crtc_helper_prepare - Noop
264 *
265 * @crtc: CRTC associated with the new screen
266 *
267 * Prepares the CRTC for a mode set, but we don't need to do anything here.
268 */
269static void vmw_sou_crtc_helper_prepare(struct drm_crtc *crtc)
270{
271}
272
273/**
274 * vmw_sou_crtc_atomic_enable - Noop
275 *
276 * @crtc: CRTC associated with the new screen
277 * @state: Unused
278 *
279 * This is called after a mode set has been completed.
280 */
281static void vmw_sou_crtc_atomic_enable(struct drm_crtc *crtc,
282 struct drm_atomic_state *state)
283{
284}
285
286/**
287 * vmw_sou_crtc_atomic_disable - Turns off CRTC
288 *
289 * @crtc: CRTC to be turned off
290 * @state: Unused
291 */
292static void vmw_sou_crtc_atomic_disable(struct drm_crtc *crtc,
293 struct drm_atomic_state *state)
294{
295 struct vmw_private *dev_priv;
296 struct vmw_screen_object_unit *sou;
297 int ret;
298
299
300 if (!crtc) {
301 DRM_ERROR("CRTC is NULL\n");
302 return;
303 }
304
305 sou = vmw_crtc_to_sou(crtc);
306 dev_priv = vmw_priv(crtc->dev);
307
308 if (sou->defined) {
309 ret = vmw_sou_fifo_destroy(dev_priv, sou);
310 if (ret)
311 DRM_ERROR("Failed to destroy Screen Object\n");
312 }
313}
314
315static const struct drm_crtc_funcs vmw_screen_object_crtc_funcs = {
316 .gamma_set = vmw_du_crtc_gamma_set,
317 .destroy = vmw_sou_crtc_destroy,
318 .reset = vmw_du_crtc_reset,
319 .atomic_duplicate_state = vmw_du_crtc_duplicate_state,
320 .atomic_destroy_state = vmw_du_crtc_destroy_state,
321 .set_config = drm_atomic_helper_set_config,
322 .page_flip = drm_atomic_helper_page_flip,
323};
324
325/*
326 * Screen Object Display Unit encoder functions
327 */
328
329static void vmw_sou_encoder_destroy(struct drm_encoder *encoder)
330{
331 vmw_sou_destroy(vmw_encoder_to_sou(encoder));
332}
333
334static const struct drm_encoder_funcs vmw_screen_object_encoder_funcs = {
335 .destroy = vmw_sou_encoder_destroy,
336};
337
338/*
339 * Screen Object Display Unit connector functions
340 */
341
342static void vmw_sou_connector_destroy(struct drm_connector *connector)
343{
344 vmw_sou_destroy(vmw_connector_to_sou(connector));
345}
346
347static const struct drm_connector_funcs vmw_sou_connector_funcs = {
348 .dpms = vmw_du_connector_dpms,
349 .detect = vmw_du_connector_detect,
350 .fill_modes = vmw_du_connector_fill_modes,
351 .destroy = vmw_sou_connector_destroy,
352 .reset = vmw_du_connector_reset,
353 .atomic_duplicate_state = vmw_du_connector_duplicate_state,
354 .atomic_destroy_state = vmw_du_connector_destroy_state,
355};
356
357
358static const struct
359drm_connector_helper_funcs vmw_sou_connector_helper_funcs = {
360};
361
362
363
364/*
365 * Screen Object Display Plane Functions
366 */
367
368/**
369 * vmw_sou_primary_plane_cleanup_fb - Frees sou backing buffer
370 *
371 * @plane: display plane
372 * @old_state: Contains the FB to clean up
373 *
374 * Unpins the display surface
375 *
376 * Returns 0 on success
377 */
378static void
379vmw_sou_primary_plane_cleanup_fb(struct drm_plane *plane,
380 struct drm_plane_state *old_state)
381{
382 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
383 struct drm_crtc *crtc = plane->state->crtc ?
384 plane->state->crtc : old_state->crtc;
385
386 if (vps->bo)
387 vmw_bo_unpin(vmw_priv(crtc->dev), vps->bo, false);
388 vmw_bo_unreference(&vps->bo);
389 vps->bo_size = 0;
390
391 vmw_du_plane_cleanup_fb(plane, old_state);
392}
393
394
395/**
396 * vmw_sou_primary_plane_prepare_fb - allocate backing buffer
397 *
398 * @plane: display plane
399 * @new_state: info on the new plane state, including the FB
400 *
401 * The SOU backing buffer is our equivalent of the display plane.
402 *
403 * Returns 0 on success
404 */
405static int
406vmw_sou_primary_plane_prepare_fb(struct drm_plane *plane,
407 struct drm_plane_state *new_state)
408{
409 struct drm_framebuffer *new_fb = new_state->fb;
410 struct drm_crtc *crtc = plane->state->crtc ?: new_state->crtc;
411 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
412 struct vmw_private *dev_priv;
413 int ret;
414 struct vmw_bo_params bo_params = {
415 .domain = VMW_BO_DOMAIN_VRAM,
416 .busy_domain = VMW_BO_DOMAIN_VRAM,
417 .bo_type = ttm_bo_type_device,
418 .pin = true
419 };
420
421 if (!new_fb) {
422 vmw_bo_unreference(&vps->bo);
423 vps->bo_size = 0;
424
425 return 0;
426 }
427
428 bo_params.size = new_state->crtc_w * new_state->crtc_h * 4;
429 dev_priv = vmw_priv(crtc->dev);
430
431 if (vps->bo) {
432 if (vps->bo_size == bo_params.size) {
433 /*
434 * Note that this might temporarily up the pin-count
435 * to 2, until cleanup_fb() is called.
436 */
437 return vmw_bo_pin_in_vram(dev_priv, vps->bo,
438 true);
439 }
440
441 vmw_bo_unreference(&vps->bo);
442 vps->bo_size = 0;
443 }
444
445 vmw_svga_enable(dev_priv);
446
447 /* After we have alloced the backing store might not be able to
448 * resume the overlays, this is preferred to failing to alloc.
449 */
450 vmw_overlay_pause_all(dev_priv);
451 ret = vmw_bo_create(dev_priv, &bo_params, &vps->bo);
452 vmw_overlay_resume_all(dev_priv);
453 if (ret)
454 return ret;
455
456 vps->bo_size = bo_params.size;
457
458 /*
459 * TTM already thinks the buffer is pinned, but make sure the
460 * pin_count is upped.
461 */
462 return vmw_bo_pin_in_vram(dev_priv, vps->bo, true);
463}
464
465static uint32_t vmw_sou_bo_fifo_size(struct vmw_du_update_plane *update,
466 uint32_t num_hits)
467{
468 return sizeof(struct vmw_kms_sou_define_gmrfb) +
469 sizeof(struct vmw_kms_sou_bo_blit) * num_hits;
470}
471
472static uint32_t vmw_sou_bo_define_gmrfb(struct vmw_du_update_plane *update,
473 void *cmd)
474{
475 struct vmw_framebuffer_bo *vfbbo =
476 container_of(update->vfb, typeof(*vfbbo), base);
477 struct vmw_kms_sou_define_gmrfb *gmr = cmd;
478 int depth = update->vfb->base.format->depth;
479
480 /* Emulate RGBA support, contrary to svga_reg.h this is not
481 * supported by hosts. This is only a problem if we are reading
482 * this value later and expecting what we uploaded back.
483 */
484 if (depth == 32)
485 depth = 24;
486
487 gmr->header = SVGA_CMD_DEFINE_GMRFB;
488
489 gmr->body.format.bitsPerPixel = update->vfb->base.format->cpp[0] * 8;
490 gmr->body.format.colorDepth = depth;
491 gmr->body.format.reserved = 0;
492 gmr->body.bytesPerLine = update->vfb->base.pitches[0];
493 vmw_bo_get_guest_ptr(&vfbbo->buffer->tbo, &gmr->body.ptr);
494
495 return sizeof(*gmr);
496}
497
498static uint32_t vmw_sou_bo_populate_clip(struct vmw_du_update_plane *update,
499 void *cmd, struct drm_rect *clip,
500 uint32_t fb_x, uint32_t fb_y)
501{
502 struct vmw_kms_sou_bo_blit *blit = cmd;
503
504 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
505 blit->body.destScreenId = update->du->unit;
506 blit->body.srcOrigin.x = fb_x;
507 blit->body.srcOrigin.y = fb_y;
508 blit->body.destRect.left = clip->x1;
509 blit->body.destRect.top = clip->y1;
510 blit->body.destRect.right = clip->x2;
511 blit->body.destRect.bottom = clip->y2;
512
513 return sizeof(*blit);
514}
515
516static uint32_t vmw_stud_bo_post_clip(struct vmw_du_update_plane *update,
517 void *cmd, struct drm_rect *bb)
518{
519 return 0;
520}
521
522/**
523 * vmw_sou_plane_update_bo - Update display unit for bo backed fb.
524 * @dev_priv: Device private.
525 * @plane: Plane state.
526 * @old_state: Old plane state.
527 * @vfb: Framebuffer which is blitted to display unit.
528 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj.
529 * The returned fence pointer may be NULL in which case the device
530 * has already synchronized.
531 *
532 * Return: 0 on success or a negative error code on failure.
533 */
534static int vmw_sou_plane_update_bo(struct vmw_private *dev_priv,
535 struct drm_plane *plane,
536 struct drm_plane_state *old_state,
537 struct vmw_framebuffer *vfb,
538 struct vmw_fence_obj **out_fence)
539{
540 struct vmw_du_update_plane_buffer bo_update;
541
542 memset(&bo_update, 0, sizeof(struct vmw_du_update_plane_buffer));
543 bo_update.base.plane = plane;
544 bo_update.base.old_state = old_state;
545 bo_update.base.dev_priv = dev_priv;
546 bo_update.base.du = vmw_crtc_to_du(plane->state->crtc);
547 bo_update.base.vfb = vfb;
548 bo_update.base.out_fence = out_fence;
549 bo_update.base.mutex = NULL;
550 bo_update.base.intr = true;
551
552 bo_update.base.calc_fifo_size = vmw_sou_bo_fifo_size;
553 bo_update.base.post_prepare = vmw_sou_bo_define_gmrfb;
554 bo_update.base.clip = vmw_sou_bo_populate_clip;
555 bo_update.base.post_clip = vmw_stud_bo_post_clip;
556
557 return vmw_du_helper_plane_update(&bo_update.base);
558}
559
560static uint32_t vmw_sou_surface_fifo_size(struct vmw_du_update_plane *update,
561 uint32_t num_hits)
562{
563 return sizeof(struct vmw_kms_sou_dirty_cmd) + sizeof(SVGASignedRect) *
564 num_hits;
565}
566
567static uint32_t vmw_sou_surface_post_prepare(struct vmw_du_update_plane *update,
568 void *cmd)
569{
570 struct vmw_du_update_plane_surface *srf_update;
571
572 srf_update = container_of(update, typeof(*srf_update), base);
573
574 /*
575 * SOU SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN is special in the sense that
576 * its bounding box is filled before iterating over all the clips. So
577 * store the FIFO start address and revisit to fill the details.
578 */
579 srf_update->cmd_start = cmd;
580
581 return 0;
582}
583
584static uint32_t vmw_sou_surface_pre_clip(struct vmw_du_update_plane *update,
585 void *cmd, uint32_t num_hits)
586{
587 struct vmw_kms_sou_dirty_cmd *blit = cmd;
588 struct vmw_framebuffer_surface *vfbs;
589
590 vfbs = container_of(update->vfb, typeof(*vfbs), base);
591
592 blit->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN;
593 blit->header.size = sizeof(blit->body) + sizeof(SVGASignedRect) *
594 num_hits;
595
596 blit->body.srcImage.sid = vfbs->surface->res.id;
597 blit->body.destScreenId = update->du->unit;
598
599 /* Update the source and destination bounding box later in post_clip */
600 blit->body.srcRect.left = 0;
601 blit->body.srcRect.top = 0;
602 blit->body.srcRect.right = 0;
603 blit->body.srcRect.bottom = 0;
604
605 blit->body.destRect.left = 0;
606 blit->body.destRect.top = 0;
607 blit->body.destRect.right = 0;
608 blit->body.destRect.bottom = 0;
609
610 return sizeof(*blit);
611}
612
613static uint32_t vmw_sou_surface_clip_rect(struct vmw_du_update_plane *update,
614 void *cmd, struct drm_rect *clip,
615 uint32_t src_x, uint32_t src_y)
616{
617 SVGASignedRect *rect = cmd;
618
619 /*
620 * rects are relative to dest bounding box rect on screen object, so
621 * translate to it later in post_clip
622 */
623 rect->left = clip->x1;
624 rect->top = clip->y1;
625 rect->right = clip->x2;
626 rect->bottom = clip->y2;
627
628 return sizeof(*rect);
629}
630
631static uint32_t vmw_sou_surface_post_clip(struct vmw_du_update_plane *update,
632 void *cmd, struct drm_rect *bb)
633{
634 struct vmw_du_update_plane_surface *srf_update;
635 struct drm_plane_state *state = update->plane->state;
636 struct drm_rect src_bb;
637 struct vmw_kms_sou_dirty_cmd *blit;
638 SVGASignedRect *rect;
639 uint32_t num_hits;
640 int translate_src_x;
641 int translate_src_y;
642 int i;
643
644 srf_update = container_of(update, typeof(*srf_update), base);
645
646 blit = srf_update->cmd_start;
647 rect = (SVGASignedRect *)&blit[1];
648
649 num_hits = (blit->header.size - sizeof(blit->body))/
650 sizeof(SVGASignedRect);
651
652 src_bb = *bb;
653
654 /* To translate bb back to fb src coord */
655 translate_src_x = (state->src_x >> 16) - state->crtc_x;
656 translate_src_y = (state->src_y >> 16) - state->crtc_y;
657
658 drm_rect_translate(&src_bb, translate_src_x, translate_src_y);
659
660 blit->body.srcRect.left = src_bb.x1;
661 blit->body.srcRect.top = src_bb.y1;
662 blit->body.srcRect.right = src_bb.x2;
663 blit->body.srcRect.bottom = src_bb.y2;
664
665 blit->body.destRect.left = bb->x1;
666 blit->body.destRect.top = bb->y1;
667 blit->body.destRect.right = bb->x2;
668 blit->body.destRect.bottom = bb->y2;
669
670 /* rects are relative to dest bb rect */
671 for (i = 0; i < num_hits; i++) {
672 rect->left -= bb->x1;
673 rect->top -= bb->y1;
674 rect->right -= bb->x1;
675 rect->bottom -= bb->y1;
676 rect++;
677 }
678
679 return 0;
680}
681
682/**
683 * vmw_sou_plane_update_surface - Update display unit for surface backed fb.
684 * @dev_priv: Device private.
685 * @plane: Plane state.
686 * @old_state: Old plane state.
687 * @vfb: Framebuffer which is blitted to display unit
688 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj.
689 * The returned fence pointer may be NULL in which case the device
690 * has already synchronized.
691 *
692 * Return: 0 on success or a negative error code on failure.
693 */
694static int vmw_sou_plane_update_surface(struct vmw_private *dev_priv,
695 struct drm_plane *plane,
696 struct drm_plane_state *old_state,
697 struct vmw_framebuffer *vfb,
698 struct vmw_fence_obj **out_fence)
699{
700 struct vmw_du_update_plane_surface srf_update;
701
702 memset(&srf_update, 0, sizeof(struct vmw_du_update_plane_surface));
703 srf_update.base.plane = plane;
704 srf_update.base.old_state = old_state;
705 srf_update.base.dev_priv = dev_priv;
706 srf_update.base.du = vmw_crtc_to_du(plane->state->crtc);
707 srf_update.base.vfb = vfb;
708 srf_update.base.out_fence = out_fence;
709 srf_update.base.mutex = &dev_priv->cmdbuf_mutex;
710 srf_update.base.intr = true;
711
712 srf_update.base.calc_fifo_size = vmw_sou_surface_fifo_size;
713 srf_update.base.post_prepare = vmw_sou_surface_post_prepare;
714 srf_update.base.pre_clip = vmw_sou_surface_pre_clip;
715 srf_update.base.clip = vmw_sou_surface_clip_rect;
716 srf_update.base.post_clip = vmw_sou_surface_post_clip;
717
718 return vmw_du_helper_plane_update(&srf_update.base);
719}
720
721static void
722vmw_sou_primary_plane_atomic_update(struct drm_plane *plane,
723 struct drm_atomic_state *state)
724{
725 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane);
726 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane);
727 struct drm_crtc *crtc = new_state->crtc;
728 struct vmw_fence_obj *fence = NULL;
729 int ret;
730
731 /* In case of device error, maintain consistent atomic state */
732 if (crtc && new_state->fb) {
733 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
734 struct vmw_framebuffer *vfb =
735 vmw_framebuffer_to_vfb(new_state->fb);
736
737 if (vfb->bo)
738 ret = vmw_sou_plane_update_bo(dev_priv, plane,
739 old_state, vfb, &fence);
740 else
741 ret = vmw_sou_plane_update_surface(dev_priv, plane,
742 old_state, vfb,
743 &fence);
744 if (ret != 0)
745 DRM_ERROR("Failed to update screen.\n");
746 } else {
747 /* Do nothing when fb and crtc is NULL (blank crtc) */
748 return;
749 }
750
751 if (fence)
752 vmw_fence_obj_unreference(&fence);
753}
754
755
756static const struct drm_plane_funcs vmw_sou_plane_funcs = {
757 .update_plane = drm_atomic_helper_update_plane,
758 .disable_plane = drm_atomic_helper_disable_plane,
759 .destroy = vmw_du_primary_plane_destroy,
760 .reset = vmw_du_plane_reset,
761 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
762 .atomic_destroy_state = vmw_du_plane_destroy_state,
763};
764
765static const struct drm_plane_funcs vmw_sou_cursor_funcs = {
766 .update_plane = drm_atomic_helper_update_plane,
767 .disable_plane = drm_atomic_helper_disable_plane,
768 .destroy = vmw_du_cursor_plane_destroy,
769 .reset = vmw_du_plane_reset,
770 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
771 .atomic_destroy_state = vmw_du_plane_destroy_state,
772};
773
774/*
775 * Atomic Helpers
776 */
777static const struct
778drm_plane_helper_funcs vmw_sou_cursor_plane_helper_funcs = {
779 .atomic_check = vmw_du_cursor_plane_atomic_check,
780 .atomic_update = vmw_du_cursor_plane_atomic_update,
781 .prepare_fb = vmw_du_cursor_plane_prepare_fb,
782 .cleanup_fb = vmw_du_cursor_plane_cleanup_fb,
783};
784
785static const struct
786drm_plane_helper_funcs vmw_sou_primary_plane_helper_funcs = {
787 .atomic_check = vmw_du_primary_plane_atomic_check,
788 .atomic_update = vmw_sou_primary_plane_atomic_update,
789 .prepare_fb = vmw_sou_primary_plane_prepare_fb,
790 .cleanup_fb = vmw_sou_primary_plane_cleanup_fb,
791};
792
793static const struct drm_crtc_helper_funcs vmw_sou_crtc_helper_funcs = {
794 .prepare = vmw_sou_crtc_helper_prepare,
795 .mode_set_nofb = vmw_sou_crtc_mode_set_nofb,
796 .atomic_check = vmw_du_crtc_atomic_check,
797 .atomic_begin = vmw_du_crtc_atomic_begin,
798 .atomic_flush = vmw_du_crtc_atomic_flush,
799 .atomic_enable = vmw_sou_crtc_atomic_enable,
800 .atomic_disable = vmw_sou_crtc_atomic_disable,
801};
802
803
804static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit)
805{
806 struct vmw_screen_object_unit *sou;
807 struct drm_device *dev = &dev_priv->drm;
808 struct drm_connector *connector;
809 struct drm_encoder *encoder;
810 struct drm_plane *primary;
811 struct vmw_cursor_plane *cursor;
812 struct drm_crtc *crtc;
813 int ret;
814
815 sou = kzalloc(sizeof(*sou), GFP_KERNEL);
816 if (!sou)
817 return -ENOMEM;
818
819 sou->base.unit = unit;
820 crtc = &sou->base.crtc;
821 encoder = &sou->base.encoder;
822 connector = &sou->base.connector;
823 primary = &sou->base.primary;
824 cursor = &sou->base.cursor;
825
826 sou->base.pref_active = (unit == 0);
827 sou->base.pref_width = dev_priv->initial_width;
828 sou->base.pref_height = dev_priv->initial_height;
829 sou->base.pref_mode = NULL;
830
831 /*
832 * Remove this after enabling atomic because property values can
833 * only exist in a state object
834 */
835 sou->base.is_implicit = false;
836
837 /* Initialize primary plane */
838 ret = drm_universal_plane_init(dev, primary,
839 0, &vmw_sou_plane_funcs,
840 vmw_primary_plane_formats,
841 ARRAY_SIZE(vmw_primary_plane_formats),
842 NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
843 if (ret) {
844 DRM_ERROR("Failed to initialize primary plane");
845 goto err_free;
846 }
847
848 drm_plane_helper_add(primary, &vmw_sou_primary_plane_helper_funcs);
849 drm_plane_enable_fb_damage_clips(primary);
850
851 /* Initialize cursor plane */
852 ret = drm_universal_plane_init(dev, &cursor->base,
853 0, &vmw_sou_cursor_funcs,
854 vmw_cursor_plane_formats,
855 ARRAY_SIZE(vmw_cursor_plane_formats),
856 NULL, DRM_PLANE_TYPE_CURSOR, NULL);
857 if (ret) {
858 DRM_ERROR("Failed to initialize cursor plane");
859 drm_plane_cleanup(&sou->base.primary);
860 goto err_free;
861 }
862
863 drm_plane_helper_add(&cursor->base, &vmw_sou_cursor_plane_helper_funcs);
864
865 ret = drm_connector_init(dev, connector, &vmw_sou_connector_funcs,
866 DRM_MODE_CONNECTOR_VIRTUAL);
867 if (ret) {
868 DRM_ERROR("Failed to initialize connector\n");
869 goto err_free;
870 }
871
872 drm_connector_helper_add(connector, &vmw_sou_connector_helper_funcs);
873 connector->status = vmw_du_connector_detect(connector, true);
874
875 ret = drm_encoder_init(dev, encoder, &vmw_screen_object_encoder_funcs,
876 DRM_MODE_ENCODER_VIRTUAL, NULL);
877 if (ret) {
878 DRM_ERROR("Failed to initialize encoder\n");
879 goto err_free_connector;
880 }
881
882 (void) drm_connector_attach_encoder(connector, encoder);
883 encoder->possible_crtcs = (1 << unit);
884 encoder->possible_clones = 0;
885
886 ret = drm_connector_register(connector);
887 if (ret) {
888 DRM_ERROR("Failed to register connector\n");
889 goto err_free_encoder;
890 }
891
892 ret = drm_crtc_init_with_planes(dev, crtc, primary,
893 &cursor->base,
894 &vmw_screen_object_crtc_funcs, NULL);
895 if (ret) {
896 DRM_ERROR("Failed to initialize CRTC\n");
897 goto err_free_unregister;
898 }
899
900 drm_crtc_helper_add(crtc, &vmw_sou_crtc_helper_funcs);
901
902 drm_mode_crtc_set_gamma_size(crtc, 256);
903
904 drm_object_attach_property(&connector->base,
905 dev_priv->hotplug_mode_update_property, 1);
906 drm_object_attach_property(&connector->base,
907 dev->mode_config.suggested_x_property, 0);
908 drm_object_attach_property(&connector->base,
909 dev->mode_config.suggested_y_property, 0);
910 return 0;
911
912err_free_unregister:
913 drm_connector_unregister(connector);
914err_free_encoder:
915 drm_encoder_cleanup(encoder);
916err_free_connector:
917 drm_connector_cleanup(connector);
918err_free:
919 kfree(sou);
920 return ret;
921}
922
923int vmw_kms_sou_init_display(struct vmw_private *dev_priv)
924{
925 struct drm_device *dev = &dev_priv->drm;
926 int i;
927
928 /* Screen objects won't work if GMR's aren't available */
929 if (!dev_priv->has_gmr)
930 return -ENOSYS;
931
932 if (!(dev_priv->capabilities & SVGA_CAP_SCREEN_OBJECT_2)) {
933 return -ENOSYS;
934 }
935
936 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
937 vmw_sou_init(dev_priv, i);
938
939 dev_priv->active_display_unit = vmw_du_screen_object;
940
941 drm_mode_config_reset(dev);
942
943 return 0;
944}
945
946static int do_bo_define_gmrfb(struct vmw_private *dev_priv,
947 struct vmw_framebuffer *framebuffer)
948{
949 struct vmw_bo *buf =
950 container_of(framebuffer, struct vmw_framebuffer_bo,
951 base)->buffer;
952 int depth = framebuffer->base.format->depth;
953 struct {
954 uint32_t header;
955 SVGAFifoCmdDefineGMRFB body;
956 } *cmd;
957
958 /* Emulate RGBA support, contrary to svga_reg.h this is not
959 * supported by hosts. This is only a problem if we are reading
960 * this value later and expecting what we uploaded back.
961 */
962 if (depth == 32)
963 depth = 24;
964
965 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
966 if (!cmd)
967 return -ENOMEM;
968
969 cmd->header = SVGA_CMD_DEFINE_GMRFB;
970 cmd->body.format.bitsPerPixel = framebuffer->base.format->cpp[0] * 8;
971 cmd->body.format.colorDepth = depth;
972 cmd->body.format.reserved = 0;
973 cmd->body.bytesPerLine = framebuffer->base.pitches[0];
974 /* Buffer is reserved in vram or GMR */
975 vmw_bo_get_guest_ptr(&buf->tbo, &cmd->body.ptr);
976 vmw_cmd_commit(dev_priv, sizeof(*cmd));
977
978 return 0;
979}
980
981/**
982 * vmw_sou_surface_fifo_commit - Callback to fill in and submit a
983 * blit surface to screen command.
984 *
985 * @dirty: The closure structure.
986 *
987 * Fills in the missing fields in the command, and translates the cliprects
988 * to match the destination bounding box encoded.
989 */
990static void vmw_sou_surface_fifo_commit(struct vmw_kms_dirty *dirty)
991{
992 struct vmw_kms_sou_surface_dirty *sdirty =
993 container_of(dirty, typeof(*sdirty), base);
994 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd;
995 s32 trans_x = dirty->unit->crtc.x - sdirty->dst_x;
996 s32 trans_y = dirty->unit->crtc.y - sdirty->dst_y;
997 size_t region_size = dirty->num_hits * sizeof(SVGASignedRect);
998 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1];
999 int i;
1000
1001 if (!dirty->num_hits) {
1002 vmw_cmd_commit(dirty->dev_priv, 0);
1003 return;
1004 }
1005
1006 cmd->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN;
1007 cmd->header.size = sizeof(cmd->body) + region_size;
1008
1009 /*
1010 * Use the destination bounding box to specify destination - and
1011 * source bounding regions.
1012 */
1013 cmd->body.destRect.left = sdirty->left;
1014 cmd->body.destRect.right = sdirty->right;
1015 cmd->body.destRect.top = sdirty->top;
1016 cmd->body.destRect.bottom = sdirty->bottom;
1017
1018 cmd->body.srcRect.left = sdirty->left + trans_x;
1019 cmd->body.srcRect.right = sdirty->right + trans_x;
1020 cmd->body.srcRect.top = sdirty->top + trans_y;
1021 cmd->body.srcRect.bottom = sdirty->bottom + trans_y;
1022
1023 cmd->body.srcImage.sid = sdirty->sid;
1024 cmd->body.destScreenId = dirty->unit->unit;
1025
1026 /* Blits are relative to the destination rect. Translate. */
1027 for (i = 0; i < dirty->num_hits; ++i, ++blit) {
1028 blit->left -= sdirty->left;
1029 blit->right -= sdirty->left;
1030 blit->top -= sdirty->top;
1031 blit->bottom -= sdirty->top;
1032 }
1033
1034 vmw_cmd_commit(dirty->dev_priv, region_size + sizeof(*cmd));
1035
1036 sdirty->left = sdirty->top = S32_MAX;
1037 sdirty->right = sdirty->bottom = S32_MIN;
1038}
1039
1040/**
1041 * vmw_sou_surface_clip - Callback to encode a blit surface to screen cliprect.
1042 *
1043 * @dirty: The closure structure
1044 *
1045 * Encodes a SVGASignedRect cliprect and updates the bounding box of the
1046 * BLIT_SURFACE_TO_SCREEN command.
1047 */
1048static void vmw_sou_surface_clip(struct vmw_kms_dirty *dirty)
1049{
1050 struct vmw_kms_sou_surface_dirty *sdirty =
1051 container_of(dirty, typeof(*sdirty), base);
1052 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd;
1053 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1];
1054
1055 /* Destination rect. */
1056 blit += dirty->num_hits;
1057 blit->left = dirty->unit_x1;
1058 blit->top = dirty->unit_y1;
1059 blit->right = dirty->unit_x2;
1060 blit->bottom = dirty->unit_y2;
1061
1062 /* Destination bounding box */
1063 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1);
1064 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1);
1065 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2);
1066 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2);
1067
1068 dirty->num_hits++;
1069}
1070
1071/**
1072 * vmw_kms_sou_do_surface_dirty - Dirty part of a surface backed framebuffer
1073 *
1074 * @dev_priv: Pointer to the device private structure.
1075 * @framebuffer: Pointer to the surface-buffer backed framebuffer.
1076 * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
1077 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
1078 * be NULL.
1079 * @srf: Pointer to surface to blit from. If NULL, the surface attached
1080 * to @framebuffer will be used.
1081 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates.
1082 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates.
1083 * @num_clips: Number of clip rects in @clips.
1084 * @inc: Increment to use when looping over @clips.
1085 * @out_fence: If non-NULL, will return a ref-counted pointer to a
1086 * struct vmw_fence_obj. The returned fence pointer may be NULL in which
1087 * case the device has already synchronized.
1088 * @crtc: If crtc is passed, perform surface dirty on that crtc only.
1089 *
1090 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
1091 * interrupted.
1092 */
1093int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv,
1094 struct vmw_framebuffer *framebuffer,
1095 struct drm_clip_rect *clips,
1096 struct drm_vmw_rect *vclips,
1097 struct vmw_resource *srf,
1098 s32 dest_x,
1099 s32 dest_y,
1100 unsigned num_clips, int inc,
1101 struct vmw_fence_obj **out_fence,
1102 struct drm_crtc *crtc)
1103{
1104 struct vmw_framebuffer_surface *vfbs =
1105 container_of(framebuffer, typeof(*vfbs), base);
1106 struct vmw_kms_sou_surface_dirty sdirty;
1107 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
1108 int ret;
1109
1110 if (!srf)
1111 srf = &vfbs->surface->res;
1112
1113 ret = vmw_validation_add_resource(&val_ctx, srf, 0, VMW_RES_DIRTY_NONE,
1114 NULL, NULL);
1115 if (ret)
1116 return ret;
1117
1118 ret = vmw_validation_prepare(&val_ctx, &dev_priv->cmdbuf_mutex, true);
1119 if (ret)
1120 goto out_unref;
1121
1122 sdirty.base.fifo_commit = vmw_sou_surface_fifo_commit;
1123 sdirty.base.clip = vmw_sou_surface_clip;
1124 sdirty.base.dev_priv = dev_priv;
1125 sdirty.base.fifo_reserve_size = sizeof(struct vmw_kms_sou_dirty_cmd) +
1126 sizeof(SVGASignedRect) * num_clips;
1127 sdirty.base.crtc = crtc;
1128
1129 sdirty.sid = srf->id;
1130 sdirty.left = sdirty.top = S32_MAX;
1131 sdirty.right = sdirty.bottom = S32_MIN;
1132 sdirty.dst_x = dest_x;
1133 sdirty.dst_y = dest_y;
1134
1135 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
1136 dest_x, dest_y, num_clips, inc,
1137 &sdirty.base);
1138 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence,
1139 NULL);
1140
1141 return ret;
1142
1143out_unref:
1144 vmw_validation_unref_lists(&val_ctx);
1145 return ret;
1146}
1147
1148/**
1149 * vmw_sou_bo_fifo_commit - Callback to submit a set of readback clips.
1150 *
1151 * @dirty: The closure structure.
1152 *
1153 * Commits a previously built command buffer of readback clips.
1154 */
1155static void vmw_sou_bo_fifo_commit(struct vmw_kms_dirty *dirty)
1156{
1157 if (!dirty->num_hits) {
1158 vmw_cmd_commit(dirty->dev_priv, 0);
1159 return;
1160 }
1161
1162 vmw_cmd_commit(dirty->dev_priv,
1163 sizeof(struct vmw_kms_sou_bo_blit) *
1164 dirty->num_hits);
1165}
1166
1167/**
1168 * vmw_sou_bo_clip - Callback to encode a readback cliprect.
1169 *
1170 * @dirty: The closure structure
1171 *
1172 * Encodes a BLIT_GMRFB_TO_SCREEN cliprect.
1173 */
1174static void vmw_sou_bo_clip(struct vmw_kms_dirty *dirty)
1175{
1176 struct vmw_kms_sou_bo_blit *blit = dirty->cmd;
1177
1178 blit += dirty->num_hits;
1179 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
1180 blit->body.destScreenId = dirty->unit->unit;
1181 blit->body.srcOrigin.x = dirty->fb_x;
1182 blit->body.srcOrigin.y = dirty->fb_y;
1183 blit->body.destRect.left = dirty->unit_x1;
1184 blit->body.destRect.top = dirty->unit_y1;
1185 blit->body.destRect.right = dirty->unit_x2;
1186 blit->body.destRect.bottom = dirty->unit_y2;
1187 dirty->num_hits++;
1188}
1189
1190/**
1191 * vmw_kms_sou_do_bo_dirty - Dirty part of a buffer-object backed framebuffer
1192 *
1193 * @dev_priv: Pointer to the device private structure.
1194 * @framebuffer: Pointer to the buffer-object backed framebuffer.
1195 * @clips: Array of clip rects.
1196 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
1197 * be NULL.
1198 * @num_clips: Number of clip rects in @clips.
1199 * @increment: Increment to use when looping over @clips.
1200 * @interruptible: Whether to perform waits interruptible if possible.
1201 * @out_fence: If non-NULL, will return a ref-counted pointer to a
1202 * struct vmw_fence_obj. The returned fence pointer may be NULL in which
1203 * case the device has already synchronized.
1204 * @crtc: If crtc is passed, perform bo dirty on that crtc only.
1205 *
1206 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
1207 * interrupted.
1208 */
1209int vmw_kms_sou_do_bo_dirty(struct vmw_private *dev_priv,
1210 struct vmw_framebuffer *framebuffer,
1211 struct drm_clip_rect *clips,
1212 struct drm_vmw_rect *vclips,
1213 unsigned num_clips, int increment,
1214 bool interruptible,
1215 struct vmw_fence_obj **out_fence,
1216 struct drm_crtc *crtc)
1217{
1218 struct vmw_bo *buf =
1219 container_of(framebuffer, struct vmw_framebuffer_bo,
1220 base)->buffer;
1221 struct vmw_kms_dirty dirty;
1222 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
1223 int ret;
1224
1225 vmw_bo_placement_set(buf, VMW_BO_DOMAIN_GMR | VMW_BO_DOMAIN_VRAM,
1226 VMW_BO_DOMAIN_GMR | VMW_BO_DOMAIN_VRAM);
1227 ret = vmw_validation_add_bo(&val_ctx, buf);
1228 if (ret)
1229 return ret;
1230
1231 ret = vmw_validation_prepare(&val_ctx, NULL, interruptible);
1232 if (ret)
1233 goto out_unref;
1234
1235 ret = do_bo_define_gmrfb(dev_priv, framebuffer);
1236 if (unlikely(ret != 0))
1237 goto out_revert;
1238
1239 dirty.crtc = crtc;
1240 dirty.fifo_commit = vmw_sou_bo_fifo_commit;
1241 dirty.clip = vmw_sou_bo_clip;
1242 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_bo_blit) *
1243 num_clips;
1244 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
1245 0, 0, num_clips, increment, &dirty);
1246 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence,
1247 NULL);
1248
1249 return ret;
1250
1251out_revert:
1252 vmw_validation_revert(&val_ctx);
1253out_unref:
1254 vmw_validation_unref_lists(&val_ctx);
1255
1256 return ret;
1257}
1258
1259
1260/**
1261 * vmw_sou_readback_fifo_commit - Callback to submit a set of readback clips.
1262 *
1263 * @dirty: The closure structure.
1264 *
1265 * Commits a previously built command buffer of readback clips.
1266 */
1267static void vmw_sou_readback_fifo_commit(struct vmw_kms_dirty *dirty)
1268{
1269 if (!dirty->num_hits) {
1270 vmw_cmd_commit(dirty->dev_priv, 0);
1271 return;
1272 }
1273
1274 vmw_cmd_commit(dirty->dev_priv,
1275 sizeof(struct vmw_kms_sou_readback_blit) *
1276 dirty->num_hits);
1277}
1278
1279/**
1280 * vmw_sou_readback_clip - Callback to encode a readback cliprect.
1281 *
1282 * @dirty: The closure structure
1283 *
1284 * Encodes a BLIT_SCREEN_TO_GMRFB cliprect.
1285 */
1286static void vmw_sou_readback_clip(struct vmw_kms_dirty *dirty)
1287{
1288 struct vmw_kms_sou_readback_blit *blit = dirty->cmd;
1289
1290 blit += dirty->num_hits;
1291 blit->header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
1292 blit->body.srcScreenId = dirty->unit->unit;
1293 blit->body.destOrigin.x = dirty->fb_x;
1294 blit->body.destOrigin.y = dirty->fb_y;
1295 blit->body.srcRect.left = dirty->unit_x1;
1296 blit->body.srcRect.top = dirty->unit_y1;
1297 blit->body.srcRect.right = dirty->unit_x2;
1298 blit->body.srcRect.bottom = dirty->unit_y2;
1299 dirty->num_hits++;
1300}
1301
1302/**
1303 * vmw_kms_sou_readback - Perform a readback from the screen object system to
1304 * a buffer-object backed framebuffer.
1305 *
1306 * @dev_priv: Pointer to the device private structure.
1307 * @file_priv: Pointer to a struct drm_file identifying the caller.
1308 * Must be set to NULL if @user_fence_rep is NULL.
1309 * @vfb: Pointer to the buffer-object backed framebuffer.
1310 * @user_fence_rep: User-space provided structure for fence information.
1311 * Must be set to non-NULL if @file_priv is non-NULL.
1312 * @vclips: Array of clip rects.
1313 * @num_clips: Number of clip rects in @vclips.
1314 * @crtc: If crtc is passed, readback on that crtc only.
1315 *
1316 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
1317 * interrupted.
1318 */
1319int vmw_kms_sou_readback(struct vmw_private *dev_priv,
1320 struct drm_file *file_priv,
1321 struct vmw_framebuffer *vfb,
1322 struct drm_vmw_fence_rep __user *user_fence_rep,
1323 struct drm_vmw_rect *vclips,
1324 uint32_t num_clips,
1325 struct drm_crtc *crtc)
1326{
1327 struct vmw_bo *buf =
1328 container_of(vfb, struct vmw_framebuffer_bo, base)->buffer;
1329 struct vmw_kms_dirty dirty;
1330 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
1331 int ret;
1332
1333 vmw_bo_placement_set(buf, VMW_BO_DOMAIN_GMR | VMW_BO_DOMAIN_VRAM,
1334 VMW_BO_DOMAIN_GMR | VMW_BO_DOMAIN_VRAM);
1335 ret = vmw_validation_add_bo(&val_ctx, buf);
1336 if (ret)
1337 return ret;
1338
1339 ret = vmw_validation_prepare(&val_ctx, NULL, true);
1340 if (ret)
1341 goto out_unref;
1342
1343 ret = do_bo_define_gmrfb(dev_priv, vfb);
1344 if (unlikely(ret != 0))
1345 goto out_revert;
1346
1347 dirty.crtc = crtc;
1348 dirty.fifo_commit = vmw_sou_readback_fifo_commit;
1349 dirty.clip = vmw_sou_readback_clip;
1350 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_readback_blit) *
1351 num_clips;
1352 ret = vmw_kms_helper_dirty(dev_priv, vfb, NULL, vclips,
1353 0, 0, num_clips, 1, &dirty);
1354 vmw_kms_helper_validation_finish(dev_priv, file_priv, &val_ctx, NULL,
1355 user_fence_rep);
1356
1357 return ret;
1358
1359out_revert:
1360 vmw_validation_revert(&val_ctx);
1361out_unref:
1362 vmw_validation_unref_lists(&val_ctx);
1363
1364 return ret;
1365}