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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/**************************************************************************
2 *
3 * Copyright © 2011 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
30
31#define vmw_crtc_to_sou(x) \
32 container_of(x, struct vmw_screen_object_unit, base.crtc)
33#define vmw_encoder_to_sou(x) \
34 container_of(x, struct vmw_screen_object_unit, base.encoder)
35#define vmw_connector_to_sou(x) \
36 container_of(x, struct vmw_screen_object_unit, base.connector)
37
38struct vmw_screen_object_display {
39 unsigned num_implicit;
40
41 struct vmw_framebuffer *implicit_fb;
42};
43
44/**
45 * Display unit using screen objects.
46 */
47struct vmw_screen_object_unit {
48 struct vmw_display_unit base;
49
50 unsigned long buffer_size; /**< Size of allocated buffer */
51 struct vmw_dma_buffer *buffer; /**< Backing store buffer */
52
53 bool defined;
54 bool active_implicit;
55};
56
57static void vmw_sou_destroy(struct vmw_screen_object_unit *sou)
58{
59 vmw_display_unit_cleanup(&sou->base);
60 kfree(sou);
61}
62
63
64/*
65 * Screen Object Display Unit CRTC functions
66 */
67
68static void vmw_sou_crtc_destroy(struct drm_crtc *crtc)
69{
70 vmw_sou_destroy(vmw_crtc_to_sou(crtc));
71}
72
73static void vmw_sou_del_active(struct vmw_private *vmw_priv,
74 struct vmw_screen_object_unit *sou)
75{
76 struct vmw_screen_object_display *ld = vmw_priv->sou_priv;
77
78 if (sou->active_implicit) {
79 if (--(ld->num_implicit) == 0)
80 ld->implicit_fb = NULL;
81 sou->active_implicit = false;
82 }
83}
84
85static void vmw_sou_add_active(struct vmw_private *vmw_priv,
86 struct vmw_screen_object_unit *sou,
87 struct vmw_framebuffer *vfb)
88{
89 struct vmw_screen_object_display *ld = vmw_priv->sou_priv;
90
91 BUG_ON(!ld->num_implicit && ld->implicit_fb);
92
93 if (!sou->active_implicit && sou->base.is_implicit) {
94 ld->implicit_fb = vfb;
95 sou->active_implicit = true;
96 ld->num_implicit++;
97 }
98}
99
100/**
101 * Send the fifo command to create a screen.
102 */
103static int vmw_sou_fifo_create(struct vmw_private *dev_priv,
104 struct vmw_screen_object_unit *sou,
105 uint32_t x, uint32_t y,
106 struct drm_display_mode *mode)
107{
108 size_t fifo_size;
109
110 struct {
111 struct {
112 uint32_t cmdType;
113 } header;
114 SVGAScreenObject obj;
115 } *cmd;
116
117 BUG_ON(!sou->buffer);
118
119 fifo_size = sizeof(*cmd);
120 cmd = vmw_fifo_reserve(dev_priv, fifo_size);
121 /* The hardware has hung, nothing we can do about it here. */
122 if (unlikely(cmd == NULL)) {
123 DRM_ERROR("Fifo reserve failed.\n");
124 return -ENOMEM;
125 }
126
127 memset(cmd, 0, fifo_size);
128 cmd->header.cmdType = SVGA_CMD_DEFINE_SCREEN;
129 cmd->obj.structSize = sizeof(SVGAScreenObject);
130 cmd->obj.id = sou->base.unit;
131 cmd->obj.flags = SVGA_SCREEN_HAS_ROOT |
132 (sou->base.unit == 0 ? SVGA_SCREEN_IS_PRIMARY : 0);
133 cmd->obj.size.width = mode->hdisplay;
134 cmd->obj.size.height = mode->vdisplay;
135 if (sou->base.is_implicit) {
136 cmd->obj.root.x = x;
137 cmd->obj.root.y = y;
138 } else {
139 cmd->obj.root.x = sou->base.gui_x;
140 cmd->obj.root.y = sou->base.gui_y;
141 }
142
143 /* Ok to assume that buffer is pinned in vram */
144 vmw_bo_get_guest_ptr(&sou->buffer->base, &cmd->obj.backingStore.ptr);
145 cmd->obj.backingStore.pitch = mode->hdisplay * 4;
146
147 vmw_fifo_commit(dev_priv, fifo_size);
148
149 sou->defined = true;
150
151 return 0;
152}
153
154/**
155 * Send the fifo command to destroy a screen.
156 */
157static int vmw_sou_fifo_destroy(struct vmw_private *dev_priv,
158 struct vmw_screen_object_unit *sou)
159{
160 size_t fifo_size;
161 int ret;
162
163 struct {
164 struct {
165 uint32_t cmdType;
166 } header;
167 SVGAFifoCmdDestroyScreen body;
168 } *cmd;
169
170 /* no need to do anything */
171 if (unlikely(!sou->defined))
172 return 0;
173
174 fifo_size = sizeof(*cmd);
175 cmd = vmw_fifo_reserve(dev_priv, fifo_size);
176 /* the hardware has hung, nothing we can do about it here */
177 if (unlikely(cmd == NULL)) {
178 DRM_ERROR("Fifo reserve failed.\n");
179 return -ENOMEM;
180 }
181
182 memset(cmd, 0, fifo_size);
183 cmd->header.cmdType = SVGA_CMD_DESTROY_SCREEN;
184 cmd->body.screenId = sou->base.unit;
185
186 vmw_fifo_commit(dev_priv, fifo_size);
187
188 /* Force sync */
189 ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ);
190 if (unlikely(ret != 0))
191 DRM_ERROR("Failed to sync with HW");
192 else
193 sou->defined = false;
194
195 return ret;
196}
197
198/**
199 * Free the backing store.
200 */
201static void vmw_sou_backing_free(struct vmw_private *dev_priv,
202 struct vmw_screen_object_unit *sou)
203{
204 struct ttm_buffer_object *bo;
205
206 if (unlikely(sou->buffer == NULL))
207 return;
208
209 bo = &sou->buffer->base;
210 ttm_bo_unref(&bo);
211 sou->buffer = NULL;
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("to 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 /* sou only supports one fb active at the time */
288 if (sou->base.is_implicit &&
289 dev_priv->sou_priv->implicit_fb && vfb &&
290 !(dev_priv->sou_priv->num_implicit == 1 &&
291 sou->active_implicit) &&
292 dev_priv->sou_priv->implicit_fb != vfb) {
293 DRM_ERROR("Multiple 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_sou_del_active(dev_priv, sou);
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_fb_off(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_sou_add_active(dev_priv, sou, 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 struct drm_crtc_funcs vmw_screen_object_crtc_funcs = {
393 .save = vmw_du_crtc_save,
394 .restore = vmw_du_crtc_restore,
395 .cursor_set = vmw_du_crtc_cursor_set,
396 .cursor_move = vmw_du_crtc_cursor_move,
397 .gamma_set = vmw_du_crtc_gamma_set,
398 .destroy = vmw_sou_crtc_destroy,
399 .set_config = vmw_sou_crtc_set_config,
400 .page_flip = vmw_du_page_flip,
401};
402
403/*
404 * Screen Object Display Unit encoder functions
405 */
406
407static void vmw_sou_encoder_destroy(struct drm_encoder *encoder)
408{
409 vmw_sou_destroy(vmw_encoder_to_sou(encoder));
410}
411
412static struct drm_encoder_funcs vmw_screen_object_encoder_funcs = {
413 .destroy = vmw_sou_encoder_destroy,
414};
415
416/*
417 * Screen Object Display Unit connector functions
418 */
419
420static void vmw_sou_connector_destroy(struct drm_connector *connector)
421{
422 vmw_sou_destroy(vmw_connector_to_sou(connector));
423}
424
425static struct drm_connector_funcs vmw_legacy_connector_funcs = {
426 .dpms = vmw_du_connector_dpms,
427 .save = vmw_du_connector_save,
428 .restore = vmw_du_connector_restore,
429 .detect = vmw_du_connector_detect,
430 .fill_modes = vmw_du_connector_fill_modes,
431 .set_property = vmw_du_connector_set_property,
432 .destroy = vmw_sou_connector_destroy,
433};
434
435static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit)
436{
437 struct vmw_screen_object_unit *sou;
438 struct drm_device *dev = dev_priv->dev;
439 struct drm_connector *connector;
440 struct drm_encoder *encoder;
441 struct drm_crtc *crtc;
442
443 sou = kzalloc(sizeof(*sou), GFP_KERNEL);
444 if (!sou)
445 return -ENOMEM;
446
447 sou->base.unit = unit;
448 crtc = &sou->base.crtc;
449 encoder = &sou->base.encoder;
450 connector = &sou->base.connector;
451
452 sou->active_implicit = false;
453
454 sou->base.pref_active = (unit == 0);
455 sou->base.pref_width = dev_priv->initial_width;
456 sou->base.pref_height = dev_priv->initial_height;
457 sou->base.pref_mode = NULL;
458 sou->base.is_implicit = true;
459
460 drm_connector_init(dev, connector, &vmw_legacy_connector_funcs,
461 DRM_MODE_CONNECTOR_VIRTUAL);
462 connector->status = vmw_du_connector_detect(connector, true);
463
464 drm_encoder_init(dev, encoder, &vmw_screen_object_encoder_funcs,
465 DRM_MODE_ENCODER_VIRTUAL);
466 drm_mode_connector_attach_encoder(connector, encoder);
467 encoder->possible_crtcs = (1 << unit);
468 encoder->possible_clones = 0;
469
470 (void) drm_sysfs_connector_add(connector);
471
472 drm_crtc_init(dev, crtc, &vmw_screen_object_crtc_funcs);
473
474 drm_mode_crtc_set_gamma_size(crtc, 256);
475
476 drm_object_attach_property(&connector->base,
477 dev->mode_config.dirty_info_property,
478 1);
479
480 return 0;
481}
482
483int vmw_kms_init_screen_object_display(struct vmw_private *dev_priv)
484{
485 struct drm_device *dev = dev_priv->dev;
486 int i, ret;
487
488 if (dev_priv->sou_priv) {
489 DRM_INFO("sou system already on\n");
490 return -EINVAL;
491 }
492
493 if (!(dev_priv->capabilities & SVGA_CAP_SCREEN_OBJECT_2)) {
494 DRM_INFO("Not using screen objects,"
495 " missing cap SCREEN_OBJECT_2\n");
496 return -ENOSYS;
497 }
498
499 ret = -ENOMEM;
500 dev_priv->sou_priv = kmalloc(sizeof(*dev_priv->sou_priv), GFP_KERNEL);
501 if (unlikely(!dev_priv->sou_priv))
502 goto err_no_mem;
503
504 dev_priv->sou_priv->num_implicit = 0;
505 dev_priv->sou_priv->implicit_fb = NULL;
506
507 ret = drm_vblank_init(dev, VMWGFX_NUM_DISPLAY_UNITS);
508 if (unlikely(ret != 0))
509 goto err_free;
510
511 ret = drm_mode_create_dirty_info_property(dev);
512 if (unlikely(ret != 0))
513 goto err_vblank_cleanup;
514
515 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i)
516 vmw_sou_init(dev_priv, i);
517
518 DRM_INFO("Screen objects system initialized\n");
519
520 return 0;
521
522err_vblank_cleanup:
523 drm_vblank_cleanup(dev);
524err_free:
525 kfree(dev_priv->sou_priv);
526 dev_priv->sou_priv = NULL;
527err_no_mem:
528 return ret;
529}
530
531int vmw_kms_close_screen_object_display(struct vmw_private *dev_priv)
532{
533 struct drm_device *dev = dev_priv->dev;
534
535 if (!dev_priv->sou_priv)
536 return -ENOSYS;
537
538 drm_vblank_cleanup(dev);
539
540 kfree(dev_priv->sou_priv);
541
542 return 0;
543}
544
545/**
546 * Returns if this unit can be page flipped.
547 * Must be called with the mode_config mutex held.
548 */
549bool vmw_kms_screen_object_flippable(struct vmw_private *dev_priv,
550 struct drm_crtc *crtc)
551{
552 struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc);
553
554 if (!sou->base.is_implicit)
555 return true;
556
557 if (dev_priv->sou_priv->num_implicit != 1)
558 return false;
559
560 return true;
561}
562
563/**
564 * Update the implicit fb to the current fb of this crtc.
565 * Must be called with the mode_config mutex held.
566 */
567void vmw_kms_screen_object_update_implicit_fb(struct vmw_private *dev_priv,
568 struct drm_crtc *crtc)
569{
570 struct vmw_screen_object_unit *sou = vmw_crtc_to_sou(crtc);
571
572 BUG_ON(!sou->base.is_implicit);
573
574 dev_priv->sou_priv->implicit_fb =
575 vmw_framebuffer_to_vfb(sou->base.crtc.primary->fb);
576}