Loading...
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}
1/**************************************************************************
2 *
3 * Copyright © 2011-2015 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 <drm/drm_plane_helper.h>
30
31
32#define vmw_crtc_to_sou(x) \
33 container_of(x, struct vmw_screen_object_unit, base.crtc)
34#define vmw_encoder_to_sou(x) \
35 container_of(x, struct vmw_screen_object_unit, base.encoder)
36#define vmw_connector_to_sou(x) \
37 container_of(x, struct vmw_screen_object_unit, base.connector)
38
39/**
40 * struct vmw_kms_sou_surface_dirty - Closure structure for
41 * blit surface to screen command.
42 * @base: The base type we derive from. Used by vmw_kms_helper_dirty().
43 * @left: Left side of bounding box.
44 * @right: Right side of bounding box.
45 * @top: Top side of bounding box.
46 * @bottom: Bottom side of bounding box.
47 * @dst_x: Difference between source clip rects and framebuffer coordinates.
48 * @dst_y: Difference between source clip rects and framebuffer coordinates.
49 * @sid: Surface id of surface to copy from.
50 */
51struct vmw_kms_sou_surface_dirty {
52 struct vmw_kms_dirty base;
53 s32 left, right, top, bottom;
54 s32 dst_x, dst_y;
55 u32 sid;
56};
57
58/*
59 * SVGA commands that are used by this code. Please see the device headers
60 * for explanation.
61 */
62struct vmw_kms_sou_readback_blit {
63 uint32 header;
64 SVGAFifoCmdBlitScreenToGMRFB body;
65};
66
67struct vmw_kms_sou_dmabuf_blit {
68 uint32 header;
69 SVGAFifoCmdBlitGMRFBToScreen body;
70};
71
72struct vmw_kms_sou_dirty_cmd {
73 SVGA3dCmdHeader header;
74 SVGA3dCmdBlitSurfaceToScreen body;
75};
76
77/**
78 * Display unit using screen objects.
79 */
80struct vmw_screen_object_unit {
81 struct vmw_display_unit base;
82
83 unsigned long buffer_size; /**< Size of allocated buffer */
84 struct vmw_dma_buffer *buffer; /**< Backing store buffer */
85
86 bool defined;
87};
88
89static void vmw_sou_destroy(struct vmw_screen_object_unit *sou)
90{
91 vmw_du_cleanup(&sou->base);
92 kfree(sou);
93}
94
95
96/*
97 * Screen Object Display Unit CRTC functions
98 */
99
100static void vmw_sou_crtc_destroy(struct drm_crtc *crtc)
101{
102 vmw_sou_destroy(vmw_crtc_to_sou(crtc));
103}
104
105/**
106 * Send the fifo command to create a screen.
107 */
108static int vmw_sou_fifo_create(struct vmw_private *dev_priv,
109 struct vmw_screen_object_unit *sou,
110 uint32_t x, uint32_t y,
111 struct drm_display_mode *mode)
112{
113 size_t fifo_size;
114
115 struct {
116 struct {
117 uint32_t cmdType;
118 } header;
119 SVGAScreenObject obj;
120 } *cmd;
121
122 BUG_ON(!sou->buffer);
123
124 fifo_size = sizeof(*cmd);
125 cmd = vmw_fifo_reserve(dev_priv, fifo_size);
126 /* The hardware has hung, nothing we can do about it here. */
127 if (unlikely(cmd == NULL)) {
128 DRM_ERROR("Fifo reserve failed.\n");
129 return -ENOMEM;
130 }
131
132 memset(cmd, 0, fifo_size);
133 cmd->header.cmdType = SVGA_CMD_DEFINE_SCREEN;
134 cmd->obj.structSize = sizeof(SVGAScreenObject);
135 cmd->obj.id = sou->base.unit;
136 cmd->obj.flags = SVGA_SCREEN_HAS_ROOT |
137 (sou->base.unit == 0 ? SVGA_SCREEN_IS_PRIMARY : 0);
138 cmd->obj.size.width = mode->hdisplay;
139 cmd->obj.size.height = mode->vdisplay;
140 if (sou->base.is_implicit) {
141 cmd->obj.root.x = x;
142 cmd->obj.root.y = y;
143 } else {
144 cmd->obj.root.x = sou->base.gui_x;
145 cmd->obj.root.y = sou->base.gui_y;
146 }
147 sou->base.set_gui_x = cmd->obj.root.x;
148 sou->base.set_gui_y = cmd->obj.root.y;
149
150 /* Ok to assume that buffer is pinned in vram */
151 vmw_bo_get_guest_ptr(&sou->buffer->base, &cmd->obj.backingStore.ptr);
152 cmd->obj.backingStore.pitch = mode->hdisplay * 4;
153
154 vmw_fifo_commit(dev_priv, fifo_size);
155
156 sou->defined = true;
157
158 return 0;
159}
160
161/**
162 * Send the fifo command to destroy a screen.
163 */
164static int vmw_sou_fifo_destroy(struct vmw_private *dev_priv,
165 struct vmw_screen_object_unit *sou)
166{
167 size_t fifo_size;
168 int ret;
169
170 struct {
171 struct {
172 uint32_t cmdType;
173 } header;
174 SVGAFifoCmdDestroyScreen body;
175 } *cmd;
176
177 /* no need to do anything */
178 if (unlikely(!sou->defined))
179 return 0;
180
181 fifo_size = sizeof(*cmd);
182 cmd = vmw_fifo_reserve(dev_priv, fifo_size);
183 /* the hardware has hung, nothing we can do about it here */
184 if (unlikely(cmd == NULL)) {
185 DRM_ERROR("Fifo reserve failed.\n");
186 return -ENOMEM;
187 }
188
189 memset(cmd, 0, fifo_size);
190 cmd->header.cmdType = SVGA_CMD_DESTROY_SCREEN;
191 cmd->body.screenId = sou->base.unit;
192
193 vmw_fifo_commit(dev_priv, fifo_size);
194
195 /* Force sync */
196 ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ);
197 if (unlikely(ret != 0))
198 DRM_ERROR("Failed to sync with HW");
199 else
200 sou->defined = false;
201
202 return ret;
203}
204
205/**
206 * Free the backing store.
207 */
208static void vmw_sou_backing_free(struct vmw_private *dev_priv,
209 struct vmw_screen_object_unit *sou)
210{
211 vmw_dmabuf_unreference(&sou->buffer);
212 sou->buffer_size = 0;
213}
214
215/**
216 * Allocate the backing store for the buffer.
217 */
218static int vmw_sou_backing_alloc(struct vmw_private *dev_priv,
219 struct vmw_screen_object_unit *sou,
220 unsigned long size)
221{
222 int ret;
223
224 if (sou->buffer_size == size)
225 return 0;
226
227 if (sou->buffer)
228 vmw_sou_backing_free(dev_priv, sou);
229
230 sou->buffer = kzalloc(sizeof(*sou->buffer), GFP_KERNEL);
231 if (unlikely(sou->buffer == NULL))
232 return -ENOMEM;
233
234 /* After we have alloced the backing store might not be able to
235 * resume the overlays, this is preferred to failing to alloc.
236 */
237 vmw_overlay_pause_all(dev_priv);
238 ret = vmw_dmabuf_init(dev_priv, sou->buffer, size,
239 &vmw_vram_ne_placement,
240 false, &vmw_dmabuf_bo_free);
241 vmw_overlay_resume_all(dev_priv);
242
243 if (unlikely(ret != 0))
244 sou->buffer = NULL; /* vmw_dmabuf_init frees on error */
245 else
246 sou->buffer_size = size;
247
248 return ret;
249}
250
251static int vmw_sou_crtc_set_config(struct drm_mode_set *set)
252{
253 struct vmw_private *dev_priv;
254 struct vmw_screen_object_unit *sou;
255 struct drm_connector *connector;
256 struct drm_display_mode *mode;
257 struct drm_encoder *encoder;
258 struct vmw_framebuffer *vfb;
259 struct drm_framebuffer *fb;
260 struct drm_crtc *crtc;
261 int ret = 0;
262
263 if (!set)
264 return -EINVAL;
265
266 if (!set->crtc)
267 return -EINVAL;
268
269 /* get the sou */
270 crtc = set->crtc;
271 sou = vmw_crtc_to_sou(crtc);
272 vfb = set->fb ? vmw_framebuffer_to_vfb(set->fb) : NULL;
273 dev_priv = vmw_priv(crtc->dev);
274
275 if (set->num_connectors > 1) {
276 DRM_ERROR("Too many connectors\n");
277 return -EINVAL;
278 }
279
280 if (set->num_connectors == 1 &&
281 set->connectors[0] != &sou->base.connector) {
282 DRM_ERROR("Connector doesn't match %p %p\n",
283 set->connectors[0], &sou->base.connector);
284 return -EINVAL;
285 }
286
287 /* Only one active implicit frame-buffer at a time. */
288 if (sou->base.is_implicit &&
289 dev_priv->implicit_fb && vfb &&
290 !(dev_priv->num_implicit == 1 &&
291 sou->base.active_implicit) &&
292 dev_priv->implicit_fb != vfb) {
293 DRM_ERROR("Multiple implicit framebuffers not supported.\n");
294 return -EINVAL;
295 }
296
297 /* since they always map one to one these are safe */
298 connector = &sou->base.connector;
299 encoder = &sou->base.encoder;
300
301 /* should we turn the crtc off */
302 if (set->num_connectors == 0 || !set->mode || !set->fb) {
303 ret = vmw_sou_fifo_destroy(dev_priv, sou);
304 /* the hardware has hung don't do anything more */
305 if (unlikely(ret != 0))
306 return ret;
307
308 connector->encoder = NULL;
309 encoder->crtc = NULL;
310 crtc->primary->fb = NULL;
311 crtc->x = 0;
312 crtc->y = 0;
313 crtc->enabled = false;
314
315 vmw_kms_del_active(dev_priv, &sou->base);
316
317 vmw_sou_backing_free(dev_priv, sou);
318
319 return 0;
320 }
321
322
323 /* we now know we want to set a mode */
324 mode = set->mode;
325 fb = set->fb;
326
327 if (set->x + mode->hdisplay > fb->width ||
328 set->y + mode->vdisplay > fb->height) {
329 DRM_ERROR("set outside of framebuffer\n");
330 return -EINVAL;
331 }
332
333 vmw_svga_enable(dev_priv);
334
335 if (mode->hdisplay != crtc->mode.hdisplay ||
336 mode->vdisplay != crtc->mode.vdisplay) {
337 /* no need to check if depth is different, because backing
338 * store depth is forced to 4 by the device.
339 */
340
341 ret = vmw_sou_fifo_destroy(dev_priv, sou);
342 /* the hardware has hung don't do anything more */
343 if (unlikely(ret != 0))
344 return ret;
345
346 vmw_sou_backing_free(dev_priv, sou);
347 }
348
349 if (!sou->buffer) {
350 /* forced to depth 4 by the device */
351 size_t size = mode->hdisplay * mode->vdisplay * 4;
352 ret = vmw_sou_backing_alloc(dev_priv, sou, size);
353 if (unlikely(ret != 0))
354 return ret;
355 }
356
357 ret = vmw_sou_fifo_create(dev_priv, sou, set->x, set->y, mode);
358 if (unlikely(ret != 0)) {
359 /*
360 * We are in a bit of a situation here, the hardware has
361 * hung and we may or may not have a buffer hanging of
362 * the screen object, best thing to do is not do anything
363 * if we where defined, if not just turn the crtc of.
364 * Not what userspace wants but it needs to htfu.
365 */
366 if (sou->defined)
367 return ret;
368
369 connector->encoder = NULL;
370 encoder->crtc = NULL;
371 crtc->primary->fb = NULL;
372 crtc->x = 0;
373 crtc->y = 0;
374 crtc->enabled = false;
375
376 return ret;
377 }
378
379 vmw_kms_add_active(dev_priv, &sou->base, vfb);
380
381 connector->encoder = encoder;
382 encoder->crtc = crtc;
383 crtc->mode = *mode;
384 crtc->primary->fb = fb;
385 crtc->x = set->x;
386 crtc->y = set->y;
387 crtc->enabled = true;
388
389 return 0;
390}
391
392static int vmw_sou_crtc_page_flip(struct drm_crtc *crtc,
393 struct drm_framebuffer *fb,
394 struct drm_pending_vblank_event *event,
395 uint32_t flags)
396{
397 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
398 struct drm_framebuffer *old_fb = crtc->primary->fb;
399 struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(fb);
400 struct vmw_fence_obj *fence = NULL;
401 struct drm_vmw_rect vclips;
402 int ret;
403
404 if (!vmw_kms_crtc_flippable(dev_priv, crtc))
405 return -EINVAL;
406
407 crtc->primary->fb = fb;
408
409 /* do a full screen dirty update */
410 vclips.x = crtc->x;
411 vclips.y = crtc->y;
412 vclips.w = crtc->mode.hdisplay;
413 vclips.h = crtc->mode.vdisplay;
414
415 if (vfb->dmabuf)
416 ret = vmw_kms_sou_do_dmabuf_dirty(dev_priv, vfb,
417 NULL, &vclips, 1, 1,
418 true, &fence);
419 else
420 ret = vmw_kms_sou_do_surface_dirty(dev_priv, vfb,
421 NULL, &vclips, NULL,
422 0, 0, 1, 1, &fence);
423
424
425 if (ret != 0)
426 goto out_no_fence;
427 if (!fence) {
428 ret = -EINVAL;
429 goto out_no_fence;
430 }
431
432 if (event) {
433 struct drm_file *file_priv = event->base.file_priv;
434
435 ret = vmw_event_fence_action_queue(file_priv, fence,
436 &event->base,
437 &event->event.tv_sec,
438 &event->event.tv_usec,
439 true);
440 }
441
442 /*
443 * No need to hold on to this now. The only cleanup
444 * we need to do if we fail is unref the fence.
445 */
446 vmw_fence_obj_unreference(&fence);
447
448 if (vmw_crtc_to_du(crtc)->is_implicit)
449 vmw_kms_update_implicit_fb(dev_priv, crtc);
450
451 return ret;
452
453out_no_fence:
454 crtc->primary->fb = old_fb;
455 return ret;
456}
457
458static const struct drm_crtc_funcs vmw_screen_object_crtc_funcs = {
459 .cursor_set2 = vmw_du_crtc_cursor_set2,
460 .cursor_move = vmw_du_crtc_cursor_move,
461 .gamma_set = vmw_du_crtc_gamma_set,
462 .destroy = vmw_sou_crtc_destroy,
463 .set_config = vmw_sou_crtc_set_config,
464 .page_flip = vmw_sou_crtc_page_flip,
465};
466
467/*
468 * Screen Object Display Unit encoder functions
469 */
470
471static void vmw_sou_encoder_destroy(struct drm_encoder *encoder)
472{
473 vmw_sou_destroy(vmw_encoder_to_sou(encoder));
474}
475
476static const struct drm_encoder_funcs vmw_screen_object_encoder_funcs = {
477 .destroy = vmw_sou_encoder_destroy,
478};
479
480/*
481 * Screen Object Display Unit connector functions
482 */
483
484static void vmw_sou_connector_destroy(struct drm_connector *connector)
485{
486 vmw_sou_destroy(vmw_connector_to_sou(connector));
487}
488
489static const struct drm_connector_funcs vmw_sou_connector_funcs = {
490 .dpms = vmw_du_connector_dpms,
491 .detect = vmw_du_connector_detect,
492 .fill_modes = vmw_du_connector_fill_modes,
493 .set_property = vmw_du_connector_set_property,
494 .destroy = vmw_sou_connector_destroy,
495};
496
497static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit)
498{
499 struct vmw_screen_object_unit *sou;
500 struct drm_device *dev = dev_priv->dev;
501 struct drm_connector *connector;
502 struct drm_encoder *encoder;
503 struct drm_crtc *crtc;
504
505 sou = kzalloc(sizeof(*sou), GFP_KERNEL);
506 if (!sou)
507 return -ENOMEM;
508
509 sou->base.unit = unit;
510 crtc = &sou->base.crtc;
511 encoder = &sou->base.encoder;
512 connector = &sou->base.connector;
513
514 sou->base.active_implicit = false;
515 sou->base.pref_active = (unit == 0);
516 sou->base.pref_width = dev_priv->initial_width;
517 sou->base.pref_height = dev_priv->initial_height;
518 sou->base.pref_mode = NULL;
519 sou->base.is_implicit = false;
520
521 drm_connector_init(dev, connector, &vmw_sou_connector_funcs,
522 DRM_MODE_CONNECTOR_VIRTUAL);
523 connector->status = vmw_du_connector_detect(connector, true);
524
525 drm_encoder_init(dev, encoder, &vmw_screen_object_encoder_funcs,
526 DRM_MODE_ENCODER_VIRTUAL, NULL);
527 drm_mode_connector_attach_encoder(connector, encoder);
528 encoder->possible_crtcs = (1 << unit);
529 encoder->possible_clones = 0;
530
531 (void) drm_connector_register(connector);
532
533 drm_crtc_init(dev, crtc, &vmw_screen_object_crtc_funcs);
534
535 drm_mode_crtc_set_gamma_size(crtc, 256);
536
537 drm_object_attach_property(&connector->base,
538 dev->mode_config.dirty_info_property,
539 1);
540 drm_object_attach_property(&connector->base,
541 dev_priv->hotplug_mode_update_property, 1);
542 drm_object_attach_property(&connector->base,
543 dev->mode_config.suggested_x_property, 0);
544 drm_object_attach_property(&connector->base,
545 dev->mode_config.suggested_y_property, 0);
546 if (dev_priv->implicit_placement_property)
547 drm_object_attach_property
548 (&connector->base,
549 dev_priv->implicit_placement_property,
550 sou->base.is_implicit);
551
552 return 0;
553}
554
555int vmw_kms_sou_init_display(struct vmw_private *dev_priv)
556{
557 struct drm_device *dev = dev_priv->dev;
558 int i, ret;
559
560 if (!(dev_priv->capabilities & SVGA_CAP_SCREEN_OBJECT_2)) {
561 DRM_INFO("Not using screen objects,"
562 " missing cap SCREEN_OBJECT_2\n");
563 return -ENOSYS;
564 }
565
566 ret = -ENOMEM;
567 dev_priv->num_implicit = 0;
568 dev_priv->implicit_fb = NULL;
569
570 ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS);
571 if (unlikely(ret != 0))
572 return ret;
573
574 ret = drm_mode_create_dirty_info_property(dev);
575 if (unlikely(ret != 0))
576 goto err_vblank_cleanup;
577
578 vmw_kms_create_implicit_placement_property(dev_priv, false);
579
580 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
581 vmw_sou_init(dev_priv, i);
582
583 dev_priv->active_display_unit = vmw_du_screen_object;
584
585 DRM_INFO("Screen Objects Display Unit initialized\n");
586
587 return 0;
588
589err_vblank_cleanup:
590 drm_vblank_cleanup(dev);
591 return ret;
592}
593
594int vmw_kms_sou_close_display(struct vmw_private *dev_priv)
595{
596 struct drm_device *dev = dev_priv->dev;
597
598 drm_vblank_cleanup(dev);
599
600 return 0;
601}
602
603static int do_dmabuf_define_gmrfb(struct vmw_private *dev_priv,
604 struct vmw_framebuffer *framebuffer)
605{
606 struct vmw_dma_buffer *buf =
607 container_of(framebuffer, struct vmw_framebuffer_dmabuf,
608 base)->buffer;
609 int depth = framebuffer->base.depth;
610 struct {
611 uint32_t header;
612 SVGAFifoCmdDefineGMRFB body;
613 } *cmd;
614
615 /* Emulate RGBA support, contrary to svga_reg.h this is not
616 * supported by hosts. This is only a problem if we are reading
617 * this value later and expecting what we uploaded back.
618 */
619 if (depth == 32)
620 depth = 24;
621
622 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
623 if (!cmd) {
624 DRM_ERROR("Out of fifo space for dirty framebuffer command.\n");
625 return -ENOMEM;
626 }
627
628 cmd->header = SVGA_CMD_DEFINE_GMRFB;
629 cmd->body.format.bitsPerPixel = framebuffer->base.bits_per_pixel;
630 cmd->body.format.colorDepth = depth;
631 cmd->body.format.reserved = 0;
632 cmd->body.bytesPerLine = framebuffer->base.pitches[0];
633 /* Buffer is reserved in vram or GMR */
634 vmw_bo_get_guest_ptr(&buf->base, &cmd->body.ptr);
635 vmw_fifo_commit(dev_priv, sizeof(*cmd));
636
637 return 0;
638}
639
640/**
641 * vmw_sou_surface_fifo_commit - Callback to fill in and submit a
642 * blit surface to screen command.
643 *
644 * @dirty: The closure structure.
645 *
646 * Fills in the missing fields in the command, and translates the cliprects
647 * to match the destination bounding box encoded.
648 */
649static void vmw_sou_surface_fifo_commit(struct vmw_kms_dirty *dirty)
650{
651 struct vmw_kms_sou_surface_dirty *sdirty =
652 container_of(dirty, typeof(*sdirty), base);
653 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd;
654 s32 trans_x = dirty->unit->crtc.x - sdirty->dst_x;
655 s32 trans_y = dirty->unit->crtc.y - sdirty->dst_y;
656 size_t region_size = dirty->num_hits * sizeof(SVGASignedRect);
657 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1];
658 int i;
659
660 if (!dirty->num_hits) {
661 vmw_fifo_commit(dirty->dev_priv, 0);
662 return;
663 }
664
665 cmd->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN;
666 cmd->header.size = sizeof(cmd->body) + region_size;
667
668 /*
669 * Use the destination bounding box to specify destination - and
670 * source bounding regions.
671 */
672 cmd->body.destRect.left = sdirty->left;
673 cmd->body.destRect.right = sdirty->right;
674 cmd->body.destRect.top = sdirty->top;
675 cmd->body.destRect.bottom = sdirty->bottom;
676
677 cmd->body.srcRect.left = sdirty->left + trans_x;
678 cmd->body.srcRect.right = sdirty->right + trans_x;
679 cmd->body.srcRect.top = sdirty->top + trans_y;
680 cmd->body.srcRect.bottom = sdirty->bottom + trans_y;
681
682 cmd->body.srcImage.sid = sdirty->sid;
683 cmd->body.destScreenId = dirty->unit->unit;
684
685 /* Blits are relative to the destination rect. Translate. */
686 for (i = 0; i < dirty->num_hits; ++i, ++blit) {
687 blit->left -= sdirty->left;
688 blit->right -= sdirty->left;
689 blit->top -= sdirty->top;
690 blit->bottom -= sdirty->top;
691 }
692
693 vmw_fifo_commit(dirty->dev_priv, region_size + sizeof(*cmd));
694
695 sdirty->left = sdirty->top = S32_MAX;
696 sdirty->right = sdirty->bottom = S32_MIN;
697}
698
699/**
700 * vmw_sou_surface_clip - Callback to encode a blit surface to screen cliprect.
701 *
702 * @dirty: The closure structure
703 *
704 * Encodes a SVGASignedRect cliprect and updates the bounding box of the
705 * BLIT_SURFACE_TO_SCREEN command.
706 */
707static void vmw_sou_surface_clip(struct vmw_kms_dirty *dirty)
708{
709 struct vmw_kms_sou_surface_dirty *sdirty =
710 container_of(dirty, typeof(*sdirty), base);
711 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd;
712 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1];
713
714 /* Destination rect. */
715 blit += dirty->num_hits;
716 blit->left = dirty->unit_x1;
717 blit->top = dirty->unit_y1;
718 blit->right = dirty->unit_x2;
719 blit->bottom = dirty->unit_y2;
720
721 /* Destination bounding box */
722 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1);
723 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1);
724 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2);
725 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2);
726
727 dirty->num_hits++;
728}
729
730/**
731 * vmw_kms_sou_do_surface_dirty - Dirty part of a surface backed framebuffer
732 *
733 * @dev_priv: Pointer to the device private structure.
734 * @framebuffer: Pointer to the surface-buffer backed framebuffer.
735 * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
736 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
737 * be NULL.
738 * @srf: Pointer to surface to blit from. If NULL, the surface attached
739 * to @framebuffer will be used.
740 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates.
741 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates.
742 * @num_clips: Number of clip rects in @clips.
743 * @inc: Increment to use when looping over @clips.
744 * @out_fence: If non-NULL, will return a ref-counted pointer to a
745 * struct vmw_fence_obj. The returned fence pointer may be NULL in which
746 * case the device has already synchronized.
747 *
748 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
749 * interrupted.
750 */
751int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv,
752 struct vmw_framebuffer *framebuffer,
753 struct drm_clip_rect *clips,
754 struct drm_vmw_rect *vclips,
755 struct vmw_resource *srf,
756 s32 dest_x,
757 s32 dest_y,
758 unsigned num_clips, int inc,
759 struct vmw_fence_obj **out_fence)
760{
761 struct vmw_framebuffer_surface *vfbs =
762 container_of(framebuffer, typeof(*vfbs), base);
763 struct vmw_kms_sou_surface_dirty sdirty;
764 int ret;
765
766 if (!srf)
767 srf = &vfbs->surface->res;
768
769 ret = vmw_kms_helper_resource_prepare(srf, true);
770 if (ret)
771 return ret;
772
773 sdirty.base.fifo_commit = vmw_sou_surface_fifo_commit;
774 sdirty.base.clip = vmw_sou_surface_clip;
775 sdirty.base.dev_priv = dev_priv;
776 sdirty.base.fifo_reserve_size = sizeof(struct vmw_kms_sou_dirty_cmd) +
777 sizeof(SVGASignedRect) * num_clips;
778
779 sdirty.sid = srf->id;
780 sdirty.left = sdirty.top = S32_MAX;
781 sdirty.right = sdirty.bottom = S32_MIN;
782 sdirty.dst_x = dest_x;
783 sdirty.dst_y = dest_y;
784
785 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
786 dest_x, dest_y, num_clips, inc,
787 &sdirty.base);
788 vmw_kms_helper_resource_finish(srf, out_fence);
789
790 return ret;
791}
792
793/**
794 * vmw_sou_dmabuf_fifo_commit - Callback to submit a set of readback clips.
795 *
796 * @dirty: The closure structure.
797 *
798 * Commits a previously built command buffer of readback clips.
799 */
800static void vmw_sou_dmabuf_fifo_commit(struct vmw_kms_dirty *dirty)
801{
802 if (!dirty->num_hits) {
803 vmw_fifo_commit(dirty->dev_priv, 0);
804 return;
805 }
806
807 vmw_fifo_commit(dirty->dev_priv,
808 sizeof(struct vmw_kms_sou_dmabuf_blit) *
809 dirty->num_hits);
810}
811
812/**
813 * vmw_sou_dmabuf_clip - Callback to encode a readback cliprect.
814 *
815 * @dirty: The closure structure
816 *
817 * Encodes a BLIT_GMRFB_TO_SCREEN cliprect.
818 */
819static void vmw_sou_dmabuf_clip(struct vmw_kms_dirty *dirty)
820{
821 struct vmw_kms_sou_dmabuf_blit *blit = dirty->cmd;
822
823 blit += dirty->num_hits;
824 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
825 blit->body.destScreenId = dirty->unit->unit;
826 blit->body.srcOrigin.x = dirty->fb_x;
827 blit->body.srcOrigin.y = dirty->fb_y;
828 blit->body.destRect.left = dirty->unit_x1;
829 blit->body.destRect.top = dirty->unit_y1;
830 blit->body.destRect.right = dirty->unit_x2;
831 blit->body.destRect.bottom = dirty->unit_y2;
832 dirty->num_hits++;
833}
834
835/**
836 * vmw_kms_do_dmabuf_dirty - Dirty part of a dma-buffer backed framebuffer
837 *
838 * @dev_priv: Pointer to the device private structure.
839 * @framebuffer: Pointer to the dma-buffer backed framebuffer.
840 * @clips: Array of clip rects.
841 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
842 * be NULL.
843 * @num_clips: Number of clip rects in @clips.
844 * @increment: Increment to use when looping over @clips.
845 * @interruptible: Whether to perform waits interruptible if possible.
846 * @out_fence: If non-NULL, will return a ref-counted pointer to a
847 * struct vmw_fence_obj. The returned fence pointer may be NULL in which
848 * case the device has already synchronized.
849 *
850 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
851 * interrupted.
852 */
853int vmw_kms_sou_do_dmabuf_dirty(struct vmw_private *dev_priv,
854 struct vmw_framebuffer *framebuffer,
855 struct drm_clip_rect *clips,
856 struct drm_vmw_rect *vclips,
857 unsigned num_clips, int increment,
858 bool interruptible,
859 struct vmw_fence_obj **out_fence)
860{
861 struct vmw_dma_buffer *buf =
862 container_of(framebuffer, struct vmw_framebuffer_dmabuf,
863 base)->buffer;
864 struct vmw_kms_dirty dirty;
865 int ret;
866
867 ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, interruptible,
868 false);
869 if (ret)
870 return ret;
871
872 ret = do_dmabuf_define_gmrfb(dev_priv, framebuffer);
873 if (unlikely(ret != 0))
874 goto out_revert;
875
876 dirty.fifo_commit = vmw_sou_dmabuf_fifo_commit;
877 dirty.clip = vmw_sou_dmabuf_clip;
878 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_dmabuf_blit) *
879 num_clips;
880 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
881 0, 0, num_clips, increment, &dirty);
882 vmw_kms_helper_buffer_finish(dev_priv, NULL, buf, out_fence, NULL);
883
884 return ret;
885
886out_revert:
887 vmw_kms_helper_buffer_revert(buf);
888
889 return ret;
890}
891
892
893/**
894 * vmw_sou_readback_fifo_commit - Callback to submit a set of readback clips.
895 *
896 * @dirty: The closure structure.
897 *
898 * Commits a previously built command buffer of readback clips.
899 */
900static void vmw_sou_readback_fifo_commit(struct vmw_kms_dirty *dirty)
901{
902 if (!dirty->num_hits) {
903 vmw_fifo_commit(dirty->dev_priv, 0);
904 return;
905 }
906
907 vmw_fifo_commit(dirty->dev_priv,
908 sizeof(struct vmw_kms_sou_readback_blit) *
909 dirty->num_hits);
910}
911
912/**
913 * vmw_sou_readback_clip - Callback to encode a readback cliprect.
914 *
915 * @dirty: The closure structure
916 *
917 * Encodes a BLIT_SCREEN_TO_GMRFB cliprect.
918 */
919static void vmw_sou_readback_clip(struct vmw_kms_dirty *dirty)
920{
921 struct vmw_kms_sou_readback_blit *blit = dirty->cmd;
922
923 blit += dirty->num_hits;
924 blit->header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
925 blit->body.srcScreenId = dirty->unit->unit;
926 blit->body.destOrigin.x = dirty->fb_x;
927 blit->body.destOrigin.y = dirty->fb_y;
928 blit->body.srcRect.left = dirty->unit_x1;
929 blit->body.srcRect.top = dirty->unit_y1;
930 blit->body.srcRect.right = dirty->unit_x2;
931 blit->body.srcRect.bottom = dirty->unit_y2;
932 dirty->num_hits++;
933}
934
935/**
936 * vmw_kms_sou_readback - Perform a readback from the screen object system to
937 * a dma-buffer backed framebuffer.
938 *
939 * @dev_priv: Pointer to the device private structure.
940 * @file_priv: Pointer to a struct drm_file identifying the caller.
941 * Must be set to NULL if @user_fence_rep is NULL.
942 * @vfb: Pointer to the dma-buffer backed framebuffer.
943 * @user_fence_rep: User-space provided structure for fence information.
944 * Must be set to non-NULL if @file_priv is non-NULL.
945 * @vclips: Array of clip rects.
946 * @num_clips: Number of clip rects in @vclips.
947 *
948 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
949 * interrupted.
950 */
951int vmw_kms_sou_readback(struct vmw_private *dev_priv,
952 struct drm_file *file_priv,
953 struct vmw_framebuffer *vfb,
954 struct drm_vmw_fence_rep __user *user_fence_rep,
955 struct drm_vmw_rect *vclips,
956 uint32_t num_clips)
957{
958 struct vmw_dma_buffer *buf =
959 container_of(vfb, struct vmw_framebuffer_dmabuf, base)->buffer;
960 struct vmw_kms_dirty dirty;
961 int ret;
962
963 ret = vmw_kms_helper_buffer_prepare(dev_priv, buf, true, false);
964 if (ret)
965 return ret;
966
967 ret = do_dmabuf_define_gmrfb(dev_priv, vfb);
968 if (unlikely(ret != 0))
969 goto out_revert;
970
971 dirty.fifo_commit = vmw_sou_readback_fifo_commit;
972 dirty.clip = vmw_sou_readback_clip;
973 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_readback_blit) *
974 num_clips;
975 ret = vmw_kms_helper_dirty(dev_priv, vfb, NULL, vclips,
976 0, 0, num_clips, 1, &dirty);
977 vmw_kms_helper_buffer_finish(dev_priv, file_priv, buf, NULL,
978 user_fence_rep);
979
980 return ret;
981
982out_revert:
983 vmw_kms_helper_buffer_revert(buf);
984
985 return ret;
986}