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1// SPDX-License-Identifier: GPL-2.0 OR MIT
2/******************************************************************************
3 *
4 * Copyright (c) 2014-2024 Broadcom. All Rights Reserved. The term
5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
22 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
23 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
24 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
25 * USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 ******************************************************************************/
28
29#include "vmwgfx_bo.h"
30#include "vmwgfx_kms.h"
31#include "vmwgfx_vkms.h"
32#include "vmw_surface_cache.h"
33#include <linux/fsnotify.h>
34
35#include <drm/drm_atomic.h>
36#include <drm/drm_atomic_helper.h>
37#include <drm/drm_damage_helper.h>
38#include <drm/drm_fourcc.h>
39#include <drm/drm_vblank.h>
40
41#define vmw_crtc_to_stdu(x) \
42 container_of(x, struct vmw_screen_target_display_unit, base.crtc)
43#define vmw_encoder_to_stdu(x) \
44 container_of(x, struct vmw_screen_target_display_unit, base.encoder)
45#define vmw_connector_to_stdu(x) \
46 container_of(x, struct vmw_screen_target_display_unit, base.connector)
47
48/*
49 * Some renderers such as llvmpipe will align the width and height of their
50 * buffers to match their tile size. We need to keep this in mind when exposing
51 * modes to userspace so that this possible over-allocation will not exceed
52 * graphics memory. 64x64 pixels seems to be a reasonable upper bound for the
53 * tile size of current renderers.
54 */
55#define GPU_TILE_SIZE 64
56
57enum stdu_content_type {
58 SAME_AS_DISPLAY = 0,
59 SEPARATE_SURFACE,
60 SEPARATE_BO
61};
62
63/**
64 * struct vmw_stdu_dirty - closure structure for the update functions
65 *
66 * @base: The base type we derive from. Used by vmw_kms_helper_dirty().
67 * @left: Left side of bounding box.
68 * @right: Right side of bounding box.
69 * @top: Top side of bounding box.
70 * @bottom: Bottom side of bounding box.
71 * @fb_left: Left side of the framebuffer/content bounding box
72 * @fb_top: Top of the framebuffer/content bounding box
73 * @pitch: framebuffer pitch (stride)
74 * @buf: buffer object when DMA-ing between buffer and screen targets.
75 * @sid: Surface ID when copying between surface and screen targets.
76 */
77struct vmw_stdu_dirty {
78 struct vmw_kms_dirty base;
79 s32 left, right, top, bottom;
80 s32 fb_left, fb_top;
81 u32 pitch;
82 union {
83 struct vmw_bo *buf;
84 u32 sid;
85 };
86};
87
88/*
89 * SVGA commands that are used by this code. Please see the device headers
90 * for explanation.
91 */
92struct vmw_stdu_update {
93 SVGA3dCmdHeader header;
94 SVGA3dCmdUpdateGBScreenTarget body;
95};
96
97struct vmw_stdu_surface_copy {
98 SVGA3dCmdHeader header;
99 SVGA3dCmdSurfaceCopy body;
100};
101
102struct vmw_stdu_update_gb_image {
103 SVGA3dCmdHeader header;
104 SVGA3dCmdUpdateGBImage body;
105};
106
107/**
108 * struct vmw_screen_target_display_unit - conglomerated STDU structure
109 *
110 * @base: VMW specific DU structure
111 * @display_srf: surface to be displayed. The dimension of this will always
112 * match the display mode. If the display mode matches
113 * content_vfbs dimensions, then this is a pointer into the
114 * corresponding field in content_vfbs. If not, then this
115 * is a separate buffer to which content_vfbs will blit to.
116 * @content_fb_type: content_fb type
117 * @display_width: display width
118 * @display_height: display height
119 * @defined: true if the current display unit has been initialized
120 * @cpp: Bytes per pixel
121 */
122struct vmw_screen_target_display_unit {
123 struct vmw_display_unit base;
124 struct vmw_surface *display_srf;
125 enum stdu_content_type content_fb_type;
126 s32 display_width, display_height;
127
128 bool defined;
129
130 /* For CPU Blit */
131 unsigned int cpp;
132};
133
134
135
136static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu);
137
138
139
140/******************************************************************************
141 * Screen Target Display Unit CRTC Functions
142 *****************************************************************************/
143
144/**
145 * vmw_stdu_crtc_destroy - cleans up the STDU
146 *
147 * @crtc: used to get a reference to the containing STDU
148 */
149static void vmw_stdu_crtc_destroy(struct drm_crtc *crtc)
150{
151 vmw_stdu_destroy(vmw_crtc_to_stdu(crtc));
152}
153
154/**
155 * vmw_stdu_define_st - Defines a Screen Target
156 *
157 * @dev_priv: VMW DRM device
158 * @stdu: display unit to create a Screen Target for
159 * @mode: The mode to set.
160 * @crtc_x: X coordinate of screen target relative to framebuffer origin.
161 * @crtc_y: Y coordinate of screen target relative to framebuffer origin.
162 *
163 * Creates a STDU that we can used later. This function is called whenever the
164 * framebuffer size changes.
165 *
166 * RETURNs:
167 * 0 on success, error code on failure
168 */
169static int vmw_stdu_define_st(struct vmw_private *dev_priv,
170 struct vmw_screen_target_display_unit *stdu,
171 struct drm_display_mode *mode,
172 int crtc_x, int crtc_y)
173{
174 struct {
175 SVGA3dCmdHeader header;
176 SVGA3dCmdDefineGBScreenTarget body;
177 } *cmd;
178
179 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
180 if (unlikely(cmd == NULL))
181 return -ENOMEM;
182
183 cmd->header.id = SVGA_3D_CMD_DEFINE_GB_SCREENTARGET;
184 cmd->header.size = sizeof(cmd->body);
185
186 cmd->body.stid = stdu->base.unit;
187 cmd->body.width = mode->hdisplay;
188 cmd->body.height = mode->vdisplay;
189 cmd->body.flags = (0 == cmd->body.stid) ? SVGA_STFLAG_PRIMARY : 0;
190 cmd->body.dpi = 0;
191 cmd->body.xRoot = crtc_x;
192 cmd->body.yRoot = crtc_y;
193
194 stdu->base.set_gui_x = cmd->body.xRoot;
195 stdu->base.set_gui_y = cmd->body.yRoot;
196
197 vmw_cmd_commit(dev_priv, sizeof(*cmd));
198
199 stdu->defined = true;
200 stdu->display_width = mode->hdisplay;
201 stdu->display_height = mode->vdisplay;
202
203 return 0;
204}
205
206
207
208/**
209 * vmw_stdu_bind_st - Binds a surface to a Screen Target
210 *
211 * @dev_priv: VMW DRM device
212 * @stdu: display unit affected
213 * @res: Buffer to bind to the screen target. Set to NULL to blank screen.
214 *
215 * Binding a surface to a Screen Target the same as flipping
216 *
217 * Returns: %0 on success or -errno code on failure
218 */
219static int vmw_stdu_bind_st(struct vmw_private *dev_priv,
220 struct vmw_screen_target_display_unit *stdu,
221 const struct vmw_resource *res)
222{
223 SVGA3dSurfaceImageId image;
224
225 struct {
226 SVGA3dCmdHeader header;
227 SVGA3dCmdBindGBScreenTarget body;
228 } *cmd;
229
230
231 if (!stdu->defined) {
232 DRM_ERROR("No screen target defined\n");
233 return -EINVAL;
234 }
235
236 /* Set up image using information in vfb */
237 memset(&image, 0, sizeof(image));
238 image.sid = res ? res->id : SVGA3D_INVALID_ID;
239
240 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
241 if (unlikely(cmd == NULL))
242 return -ENOMEM;
243
244 cmd->header.id = SVGA_3D_CMD_BIND_GB_SCREENTARGET;
245 cmd->header.size = sizeof(cmd->body);
246
247 cmd->body.stid = stdu->base.unit;
248 cmd->body.image = image;
249
250 vmw_cmd_commit(dev_priv, sizeof(*cmd));
251
252 return 0;
253}
254
255/**
256 * vmw_stdu_populate_update - populate an UPDATE_GB_SCREENTARGET command with a
257 * bounding box.
258 *
259 * @cmd: Pointer to command stream.
260 * @unit: Screen target unit.
261 * @left: Left side of bounding box.
262 * @right: Right side of bounding box.
263 * @top: Top side of bounding box.
264 * @bottom: Bottom side of bounding box.
265 */
266static void vmw_stdu_populate_update(void *cmd, int unit,
267 s32 left, s32 right, s32 top, s32 bottom)
268{
269 struct vmw_stdu_update *update = cmd;
270
271 update->header.id = SVGA_3D_CMD_UPDATE_GB_SCREENTARGET;
272 update->header.size = sizeof(update->body);
273
274 update->body.stid = unit;
275 update->body.rect.x = left;
276 update->body.rect.y = top;
277 update->body.rect.w = right - left;
278 update->body.rect.h = bottom - top;
279}
280
281/**
282 * vmw_stdu_update_st - Full update of a Screen Target
283 *
284 * @dev_priv: VMW DRM device
285 * @stdu: display unit affected
286 *
287 * This function needs to be called whenever the content of a screen
288 * target has changed completely. Typically as a result of a backing
289 * surface change.
290 *
291 * RETURNS:
292 * 0 on success, error code on failure
293 */
294static int vmw_stdu_update_st(struct vmw_private *dev_priv,
295 struct vmw_screen_target_display_unit *stdu)
296{
297 struct vmw_stdu_update *cmd;
298
299 if (!stdu->defined) {
300 DRM_ERROR("No screen target defined");
301 return -EINVAL;
302 }
303
304 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
305 if (unlikely(cmd == NULL))
306 return -ENOMEM;
307
308 vmw_stdu_populate_update(cmd, stdu->base.unit,
309 0, stdu->display_width,
310 0, stdu->display_height);
311
312 vmw_cmd_commit(dev_priv, sizeof(*cmd));
313
314 return 0;
315}
316
317
318
319/**
320 * vmw_stdu_destroy_st - Destroy a Screen Target
321 *
322 * @dev_priv: VMW DRM device
323 * @stdu: display unit to destroy
324 *
325 * Returns: %0 on success, negative error code on failure. -ERESTARTSYS if
326 * interrupted.
327 */
328static int vmw_stdu_destroy_st(struct vmw_private *dev_priv,
329 struct vmw_screen_target_display_unit *stdu)
330{
331 int ret;
332
333 struct {
334 SVGA3dCmdHeader header;
335 SVGA3dCmdDestroyGBScreenTarget body;
336 } *cmd;
337
338
339 /* Nothing to do if not successfully defined */
340 if (unlikely(!stdu->defined))
341 return 0;
342
343 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
344 if (unlikely(cmd == NULL))
345 return -ENOMEM;
346
347 cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SCREENTARGET;
348 cmd->header.size = sizeof(cmd->body);
349
350 cmd->body.stid = stdu->base.unit;
351
352 vmw_cmd_commit(dev_priv, sizeof(*cmd));
353
354 /* Force sync */
355 ret = vmw_fallback_wait(dev_priv, false, true, 0, false, 3*HZ);
356 if (unlikely(ret != 0))
357 DRM_ERROR("Failed to sync with HW");
358
359 stdu->defined = false;
360 stdu->display_width = 0;
361 stdu->display_height = 0;
362
363 return ret;
364}
365
366
367/**
368 * vmw_stdu_crtc_mode_set_nofb - Updates screen target size
369 *
370 * @crtc: CRTC associated with the screen target
371 *
372 * This function defines/destroys a screen target
373 *
374 */
375static void vmw_stdu_crtc_mode_set_nofb(struct drm_crtc *crtc)
376{
377 struct vmw_private *dev_priv;
378 struct vmw_screen_target_display_unit *stdu;
379 struct drm_connector_state *conn_state;
380 struct vmw_connector_state *vmw_conn_state;
381 int x, y, ret;
382
383 stdu = vmw_crtc_to_stdu(crtc);
384 dev_priv = vmw_priv(crtc->dev);
385 conn_state = stdu->base.connector.state;
386 vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
387
388 if (stdu->defined) {
389 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
390 if (ret)
391 DRM_ERROR("Failed to blank CRTC\n");
392
393 (void) vmw_stdu_update_st(dev_priv, stdu);
394
395 ret = vmw_stdu_destroy_st(dev_priv, stdu);
396 if (ret)
397 DRM_ERROR("Failed to destroy Screen Target\n");
398
399 stdu->content_fb_type = SAME_AS_DISPLAY;
400 }
401
402 if (!crtc->state->enable)
403 return;
404
405 x = vmw_conn_state->gui_x;
406 y = vmw_conn_state->gui_y;
407
408 vmw_svga_enable(dev_priv);
409 ret = vmw_stdu_define_st(dev_priv, stdu, &crtc->mode, x, y);
410
411 if (ret)
412 DRM_ERROR("Failed to define Screen Target of size %dx%d\n",
413 crtc->x, crtc->y);
414}
415
416static void vmw_stdu_crtc_atomic_disable(struct drm_crtc *crtc,
417 struct drm_atomic_state *state)
418{
419 struct vmw_private *dev_priv;
420 struct vmw_screen_target_display_unit *stdu;
421 struct drm_crtc_state *new_crtc_state;
422 int ret;
423
424 if (!crtc) {
425 DRM_ERROR("CRTC is NULL\n");
426 return;
427 }
428
429 stdu = vmw_crtc_to_stdu(crtc);
430 dev_priv = vmw_priv(crtc->dev);
431 new_crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
432
433 if (dev_priv->vkms_enabled)
434 drm_crtc_vblank_off(crtc);
435
436 if (stdu->defined) {
437 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
438 if (ret)
439 DRM_ERROR("Failed to blank CRTC\n");
440
441 (void) vmw_stdu_update_st(dev_priv, stdu);
442
443 /* Don't destroy the Screen Target if we are only setting the
444 * display as inactive
445 */
446 if (new_crtc_state->enable &&
447 !new_crtc_state->active &&
448 !new_crtc_state->mode_changed)
449 return;
450
451 ret = vmw_stdu_destroy_st(dev_priv, stdu);
452 if (ret)
453 DRM_ERROR("Failed to destroy Screen Target\n");
454
455 stdu->content_fb_type = SAME_AS_DISPLAY;
456 }
457}
458
459/**
460 * vmw_stdu_bo_cpu_clip - Callback to encode a CPU blit
461 *
462 * @dirty: The closure structure.
463 *
464 * This function calculates the bounding box for all the incoming clips.
465 */
466static void vmw_stdu_bo_cpu_clip(struct vmw_kms_dirty *dirty)
467{
468 struct vmw_stdu_dirty *ddirty =
469 container_of(dirty, struct vmw_stdu_dirty, base);
470
471 dirty->num_hits = 1;
472
473 /* Calculate destination bounding box */
474 ddirty->left = min_t(s32, ddirty->left, dirty->unit_x1);
475 ddirty->top = min_t(s32, ddirty->top, dirty->unit_y1);
476 ddirty->right = max_t(s32, ddirty->right, dirty->unit_x2);
477 ddirty->bottom = max_t(s32, ddirty->bottom, dirty->unit_y2);
478
479 /*
480 * Calculate content bounding box. We only need the top-left
481 * coordinate because width and height will be the same as the
482 * destination bounding box above
483 */
484 ddirty->fb_left = min_t(s32, ddirty->fb_left, dirty->fb_x);
485 ddirty->fb_top = min_t(s32, ddirty->fb_top, dirty->fb_y);
486}
487
488
489/**
490 * vmw_stdu_bo_cpu_commit - Callback to do a CPU blit from buffer object
491 *
492 * @dirty: The closure structure.
493 *
494 * For the special case when we cannot create a proxy surface in a
495 * 2D VM, we have to do a CPU blit ourselves.
496 */
497static void vmw_stdu_bo_cpu_commit(struct vmw_kms_dirty *dirty)
498{
499 struct vmw_stdu_dirty *ddirty =
500 container_of(dirty, struct vmw_stdu_dirty, base);
501 struct vmw_screen_target_display_unit *stdu =
502 container_of(dirty->unit, typeof(*stdu), base);
503 s32 width, height;
504 s32 src_pitch, dst_pitch;
505 struct vmw_bo *src_bo, *dst_bo;
506 u32 src_offset, dst_offset;
507 struct vmw_diff_cpy diff = VMW_CPU_BLIT_DIFF_INITIALIZER(stdu->cpp);
508
509 if (!dirty->num_hits)
510 return;
511
512 width = ddirty->right - ddirty->left;
513 height = ddirty->bottom - ddirty->top;
514
515 if (width == 0 || height == 0)
516 return;
517
518 /* Assume we are blitting from Guest (bo) to Host (display_srf) */
519 src_pitch = stdu->display_srf->metadata.base_size.width * stdu->cpp;
520 src_bo = stdu->display_srf->res.guest_memory_bo;
521 src_offset = ddirty->top * src_pitch + ddirty->left * stdu->cpp;
522
523 dst_pitch = ddirty->pitch;
524 dst_bo = ddirty->buf;
525 dst_offset = ddirty->fb_top * dst_pitch + ddirty->fb_left * stdu->cpp;
526
527 (void) vmw_bo_cpu_blit(dst_bo, dst_offset, dst_pitch,
528 src_bo, src_offset, src_pitch,
529 width * stdu->cpp, height, &diff);
530}
531
532/**
533 * vmw_kms_stdu_readback - Perform a readback from a buffer-object backed
534 * framebuffer and the screen target system.
535 *
536 * @dev_priv: Pointer to the device private structure.
537 * @file_priv: Pointer to a struct drm-file identifying the caller. May be
538 * set to NULL, but then @user_fence_rep must also be set to NULL.
539 * @vfb: Pointer to the buffer-object backed framebuffer.
540 * @user_fence_rep: User-space provided structure for fence information.
541 * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
542 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
543 * be NULL.
544 * @num_clips: Number of clip rects in @clips or @vclips.
545 * @increment: Increment to use when looping over @clips or @vclips.
546 * @crtc: If crtc is passed, perform stdu dma on that crtc only.
547 *
548 * If DMA-ing till the screen target system, the function will also notify
549 * the screen target system that a bounding box of the cliprects has been
550 * updated.
551 *
552 * Returns: %0 on success, negative error code on failure. -ERESTARTSYS if
553 * interrupted.
554 */
555int vmw_kms_stdu_readback(struct vmw_private *dev_priv,
556 struct drm_file *file_priv,
557 struct vmw_framebuffer *vfb,
558 struct drm_vmw_fence_rep __user *user_fence_rep,
559 struct drm_clip_rect *clips,
560 struct drm_vmw_rect *vclips,
561 uint32_t num_clips,
562 int increment,
563 struct drm_crtc *crtc)
564{
565 struct vmw_bo *buf =
566 container_of(vfb, struct vmw_framebuffer_bo, base)->buffer;
567 struct vmw_stdu_dirty ddirty;
568 int ret;
569 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
570
571 /*
572 * The GMR domain might seem confusing because it might seem like it should
573 * never happen with screen targets but e.g. the xorg vmware driver issues
574 * CMD_SURFACE_DMA for various pixmap updates which might transition our bo to
575 * a GMR. Instead of forcing another transition we can optimize the readback
576 * by reading directly from the GMR.
577 */
578 vmw_bo_placement_set(buf,
579 VMW_BO_DOMAIN_MOB | VMW_BO_DOMAIN_SYS | VMW_BO_DOMAIN_GMR,
580 VMW_BO_DOMAIN_MOB | VMW_BO_DOMAIN_SYS | VMW_BO_DOMAIN_GMR);
581 ret = vmw_validation_add_bo(&val_ctx, buf);
582 if (ret)
583 return ret;
584
585 ret = vmw_validation_prepare(&val_ctx, NULL, true);
586 if (ret)
587 goto out_unref;
588
589 ddirty.left = ddirty.top = S32_MAX;
590 ddirty.right = ddirty.bottom = S32_MIN;
591 ddirty.fb_left = ddirty.fb_top = S32_MAX;
592 ddirty.pitch = vfb->base.pitches[0];
593 ddirty.buf = buf;
594
595 ddirty.base.fifo_commit = vmw_stdu_bo_cpu_commit;
596 ddirty.base.clip = vmw_stdu_bo_cpu_clip;
597 ddirty.base.fifo_reserve_size = 0;
598
599 ddirty.base.crtc = crtc;
600
601 ret = vmw_kms_helper_dirty(dev_priv, vfb, clips, vclips,
602 0, 0, num_clips, increment, &ddirty.base);
603
604 vmw_kms_helper_validation_finish(dev_priv, file_priv, &val_ctx, NULL,
605 user_fence_rep);
606 return ret;
607
608out_unref:
609 vmw_validation_unref_lists(&val_ctx);
610 return ret;
611}
612
613/**
614 * vmw_kms_stdu_surface_clip - Callback to encode a surface copy command cliprect
615 *
616 * @dirty: The closure structure.
617 *
618 * Encodes a surface copy command cliprect and updates the bounding box
619 * for the copy.
620 */
621static void vmw_kms_stdu_surface_clip(struct vmw_kms_dirty *dirty)
622{
623 struct vmw_stdu_dirty *sdirty =
624 container_of(dirty, struct vmw_stdu_dirty, base);
625 struct vmw_stdu_surface_copy *cmd = dirty->cmd;
626 struct vmw_screen_target_display_unit *stdu =
627 container_of(dirty->unit, typeof(*stdu), base);
628
629 if (sdirty->sid != stdu->display_srf->res.id) {
630 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
631
632 blit += dirty->num_hits;
633 blit->srcx = dirty->fb_x;
634 blit->srcy = dirty->fb_y;
635 blit->x = dirty->unit_x1;
636 blit->y = dirty->unit_y1;
637 blit->d = 1;
638 blit->w = dirty->unit_x2 - dirty->unit_x1;
639 blit->h = dirty->unit_y2 - dirty->unit_y1;
640 }
641
642 dirty->num_hits++;
643
644 /* Destination bounding box */
645 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1);
646 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1);
647 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2);
648 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2);
649}
650
651/**
652 * vmw_kms_stdu_surface_fifo_commit - Callback to fill in and submit a surface
653 * copy command.
654 *
655 * @dirty: The closure structure.
656 *
657 * Fills in the missing fields in a surface copy command, and encodes a screen
658 * target update command.
659 */
660static void vmw_kms_stdu_surface_fifo_commit(struct vmw_kms_dirty *dirty)
661{
662 struct vmw_stdu_dirty *sdirty =
663 container_of(dirty, struct vmw_stdu_dirty, base);
664 struct vmw_screen_target_display_unit *stdu =
665 container_of(dirty->unit, typeof(*stdu), base);
666 struct vmw_stdu_surface_copy *cmd = dirty->cmd;
667 struct vmw_stdu_update *update;
668 size_t blit_size = sizeof(SVGA3dCopyBox) * dirty->num_hits;
669 size_t commit_size;
670
671 if (!dirty->num_hits) {
672 vmw_cmd_commit(dirty->dev_priv, 0);
673 return;
674 }
675
676 if (sdirty->sid != stdu->display_srf->res.id) {
677 struct SVGA3dCopyBox *blit = (struct SVGA3dCopyBox *) &cmd[1];
678
679 cmd->header.id = SVGA_3D_CMD_SURFACE_COPY;
680 cmd->header.size = sizeof(cmd->body) + blit_size;
681 cmd->body.src.sid = sdirty->sid;
682 cmd->body.dest.sid = stdu->display_srf->res.id;
683 update = (struct vmw_stdu_update *) &blit[dirty->num_hits];
684 commit_size = sizeof(*cmd) + blit_size + sizeof(*update);
685 stdu->display_srf->res.res_dirty = true;
686 } else {
687 update = dirty->cmd;
688 commit_size = sizeof(*update);
689 }
690
691 vmw_stdu_populate_update(update, stdu->base.unit, sdirty->left,
692 sdirty->right, sdirty->top, sdirty->bottom);
693
694 vmw_cmd_commit(dirty->dev_priv, commit_size);
695
696 sdirty->left = sdirty->top = S32_MAX;
697 sdirty->right = sdirty->bottom = S32_MIN;
698}
699
700/**
701 * vmw_kms_stdu_surface_dirty - Dirty part of a surface backed framebuffer
702 *
703 * @dev_priv: Pointer to the device private structure.
704 * @framebuffer: Pointer to the surface-buffer backed framebuffer.
705 * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
706 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
707 * be NULL.
708 * @srf: Pointer to surface to blit from. If NULL, the surface attached
709 * to @framebuffer will be used.
710 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates.
711 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates.
712 * @num_clips: Number of clip rects in @clips.
713 * @inc: Increment to use when looping over @clips.
714 * @out_fence: If non-NULL, will return a ref-counted pointer to a
715 * struct vmw_fence_obj. The returned fence pointer may be NULL in which
716 * case the device has already synchronized.
717 * @crtc: If crtc is passed, perform surface dirty on that crtc only.
718 *
719 * Returns: %0 on success, negative error code on failure. -ERESTARTSYS if
720 * interrupted.
721 */
722int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv,
723 struct vmw_framebuffer *framebuffer,
724 struct drm_clip_rect *clips,
725 struct drm_vmw_rect *vclips,
726 struct vmw_resource *srf,
727 s32 dest_x,
728 s32 dest_y,
729 unsigned num_clips, int inc,
730 struct vmw_fence_obj **out_fence,
731 struct drm_crtc *crtc)
732{
733 struct vmw_framebuffer_surface *vfbs =
734 container_of(framebuffer, typeof(*vfbs), base);
735 struct vmw_stdu_dirty sdirty;
736 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
737 int ret;
738
739 if (!srf)
740 srf = &vmw_user_object_surface(&vfbs->uo)->res;
741
742 ret = vmw_validation_add_resource(&val_ctx, srf, 0, VMW_RES_DIRTY_NONE,
743 NULL, NULL);
744 if (ret)
745 return ret;
746
747 ret = vmw_validation_prepare(&val_ctx, &dev_priv->cmdbuf_mutex, true);
748 if (ret)
749 goto out_unref;
750
751 sdirty.base.fifo_commit = vmw_kms_stdu_surface_fifo_commit;
752 sdirty.base.clip = vmw_kms_stdu_surface_clip;
753 sdirty.base.fifo_reserve_size = sizeof(struct vmw_stdu_surface_copy) +
754 sizeof(SVGA3dCopyBox) * num_clips +
755 sizeof(struct vmw_stdu_update);
756 sdirty.base.crtc = crtc;
757 sdirty.sid = srf->id;
758 sdirty.left = sdirty.top = S32_MAX;
759 sdirty.right = sdirty.bottom = S32_MIN;
760
761 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
762 dest_x, dest_y, num_clips, inc,
763 &sdirty.base);
764
765 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence,
766 NULL);
767
768 return ret;
769
770out_unref:
771 vmw_validation_unref_lists(&val_ctx);
772 return ret;
773}
774
775/*
776 * Screen Target CRTC dispatch table
777 */
778static const struct drm_crtc_funcs vmw_stdu_crtc_funcs = {
779 .gamma_set = vmw_du_crtc_gamma_set,
780 .destroy = vmw_stdu_crtc_destroy,
781 .reset = vmw_du_crtc_reset,
782 .atomic_duplicate_state = vmw_du_crtc_duplicate_state,
783 .atomic_destroy_state = vmw_du_crtc_destroy_state,
784 .set_config = drm_atomic_helper_set_config,
785 .page_flip = drm_atomic_helper_page_flip,
786 .enable_vblank = vmw_vkms_enable_vblank,
787 .disable_vblank = vmw_vkms_disable_vblank,
788 .get_vblank_timestamp = vmw_vkms_get_vblank_timestamp,
789 .get_crc_sources = vmw_vkms_get_crc_sources,
790 .set_crc_source = vmw_vkms_set_crc_source,
791 .verify_crc_source = vmw_vkms_verify_crc_source,
792};
793
794
795
796/******************************************************************************
797 * Screen Target Display Unit Encoder Functions
798 *****************************************************************************/
799
800/**
801 * vmw_stdu_encoder_destroy - cleans up the STDU
802 *
803 * @encoder: used the get the containing STDU
804 *
805 * vmwgfx cleans up crtc/encoder/connector all at the same time so technically
806 * this can be a no-op. Nevertheless, it doesn't hurt of have this in case
807 * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't
808 * get called.
809 */
810static void vmw_stdu_encoder_destroy(struct drm_encoder *encoder)
811{
812 vmw_stdu_destroy(vmw_encoder_to_stdu(encoder));
813}
814
815static const struct drm_encoder_funcs vmw_stdu_encoder_funcs = {
816 .destroy = vmw_stdu_encoder_destroy,
817};
818
819
820
821/******************************************************************************
822 * Screen Target Display Unit Connector Functions
823 *****************************************************************************/
824
825/**
826 * vmw_stdu_connector_destroy - cleans up the STDU
827 *
828 * @connector: used to get the containing STDU
829 *
830 * vmwgfx cleans up crtc/encoder/connector all at the same time so technically
831 * this can be a no-op. Nevertheless, it doesn't hurt of have this in case
832 * the common KMS code changes and somehow vmw_stdu_crtc_destroy() doesn't
833 * get called.
834 */
835static void vmw_stdu_connector_destroy(struct drm_connector *connector)
836{
837 vmw_stdu_destroy(vmw_connector_to_stdu(connector));
838}
839
840static enum drm_mode_status
841vmw_stdu_connector_mode_valid(struct drm_connector *connector,
842 struct drm_display_mode *mode)
843{
844 enum drm_mode_status ret;
845 struct drm_device *dev = connector->dev;
846 struct vmw_private *dev_priv = vmw_priv(dev);
847 u64 assumed_cpp = dev_priv->assume_16bpp ? 2 : 4;
848 /* Align width and height to account for GPU tile over-alignment */
849 u64 required_mem = ALIGN(mode->hdisplay, GPU_TILE_SIZE) *
850 ALIGN(mode->vdisplay, GPU_TILE_SIZE) *
851 assumed_cpp;
852 required_mem = ALIGN(required_mem, PAGE_SIZE);
853
854 ret = drm_mode_validate_size(mode, dev_priv->stdu_max_width,
855 dev_priv->stdu_max_height);
856 if (ret != MODE_OK)
857 return ret;
858
859 ret = drm_mode_validate_size(mode, dev_priv->texture_max_width,
860 dev_priv->texture_max_height);
861 if (ret != MODE_OK)
862 return ret;
863
864 if (required_mem > dev_priv->max_primary_mem)
865 return MODE_MEM;
866
867 if (required_mem > dev_priv->max_mob_pages * PAGE_SIZE)
868 return MODE_MEM;
869
870 if (required_mem > dev_priv->max_mob_size)
871 return MODE_MEM;
872
873 return MODE_OK;
874}
875
876/*
877 * Trigger a modeset if the X,Y position of the Screen Target changes.
878 * This is needed when multi-mon is cycled. The original Screen Target will have
879 * the same mode but its relative X,Y position in the topology will change.
880 */
881static int vmw_stdu_connector_atomic_check(struct drm_connector *conn,
882 struct drm_atomic_state *state)
883{
884 struct drm_connector_state *conn_state;
885 struct vmw_screen_target_display_unit *du;
886 struct drm_crtc_state *new_crtc_state;
887
888 conn_state = drm_atomic_get_connector_state(state, conn);
889
890 if (IS_ERR(conn_state))
891 return PTR_ERR(conn_state);
892
893 du = vmw_connector_to_stdu(conn);
894
895 if (!conn_state->crtc)
896 return 0;
897
898 new_crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
899 if (du->base.gui_x != du->base.set_gui_x ||
900 du->base.gui_y != du->base.set_gui_y)
901 new_crtc_state->mode_changed = true;
902
903 return 0;
904}
905
906static const struct drm_connector_funcs vmw_stdu_connector_funcs = {
907 .dpms = vmw_du_connector_dpms,
908 .detect = vmw_du_connector_detect,
909 .fill_modes = drm_helper_probe_single_connector_modes,
910 .destroy = vmw_stdu_connector_destroy,
911 .reset = vmw_du_connector_reset,
912 .atomic_duplicate_state = vmw_du_connector_duplicate_state,
913 .atomic_destroy_state = vmw_du_connector_destroy_state,
914};
915
916
917static const struct
918drm_connector_helper_funcs vmw_stdu_connector_helper_funcs = {
919 .get_modes = vmw_connector_get_modes,
920 .mode_valid = vmw_stdu_connector_mode_valid,
921 .atomic_check = vmw_stdu_connector_atomic_check,
922};
923
924
925
926/******************************************************************************
927 * Screen Target Display Plane Functions
928 *****************************************************************************/
929
930
931
932/**
933 * vmw_stdu_primary_plane_cleanup_fb - Unpins the display surface
934 *
935 * @plane: display plane
936 * @old_state: Contains the FB to clean up
937 *
938 * Unpins the display surface
939 *
940 * Returns 0 on success
941 */
942static void
943vmw_stdu_primary_plane_cleanup_fb(struct drm_plane *plane,
944 struct drm_plane_state *old_state)
945{
946 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
947
948 if (vmw_user_object_surface(&vps->uo))
949 WARN_ON(!vps->pinned);
950 vmw_du_plane_cleanup_fb(plane, old_state);
951
952 vps->content_fb_type = SAME_AS_DISPLAY;
953 vps->cpp = 0;
954}
955
956
957/**
958 * vmw_stdu_primary_plane_prepare_fb - Readies the display surface
959 *
960 * @plane: display plane
961 * @new_state: info on the new plane state, including the FB
962 *
963 * This function allocates a new display surface if the content is
964 * backed by a buffer object. The display surface is pinned here, and it'll
965 * be unpinned in .cleanup_fb()
966 *
967 * Returns: %0 on success
968 */
969static int
970vmw_stdu_primary_plane_prepare_fb(struct drm_plane *plane,
971 struct drm_plane_state *new_state)
972{
973 struct vmw_private *dev_priv = vmw_priv(plane->dev);
974 struct drm_framebuffer *new_fb = new_state->fb;
975 struct vmw_framebuffer *vfb;
976 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
977 enum stdu_content_type new_content_type;
978 struct vmw_framebuffer_surface *new_vfbs;
979 uint32_t hdisplay = new_state->crtc_w, vdisplay = new_state->crtc_h;
980 struct drm_plane_state *old_state = plane->state;
981 struct drm_rect rect;
982 int ret;
983
984 /* No FB to prepare */
985 if (!new_fb) {
986 if (vmw_user_object_surface(&vps->uo)) {
987 WARN_ON(vps->pinned != 0);
988 vmw_user_object_unref(&vps->uo);
989 }
990
991 return 0;
992 }
993
994 vfb = vmw_framebuffer_to_vfb(new_fb);
995 new_vfbs = (vfb->bo) ? NULL : vmw_framebuffer_to_vfbs(new_fb);
996
997 if (new_vfbs &&
998 vmw_user_object_surface(&new_vfbs->uo)->metadata.base_size.width == hdisplay &&
999 vmw_user_object_surface(&new_vfbs->uo)->metadata.base_size.height == vdisplay)
1000 new_content_type = SAME_AS_DISPLAY;
1001 else if (vfb->bo)
1002 new_content_type = SEPARATE_BO;
1003 else
1004 new_content_type = SEPARATE_SURFACE;
1005
1006 if (new_content_type != SAME_AS_DISPLAY) {
1007 struct vmw_surface_metadata metadata = {0};
1008
1009 /*
1010 * If content buffer is a buffer object, then we have to
1011 * construct surface info
1012 */
1013 if (new_content_type == SEPARATE_BO) {
1014
1015 switch (new_fb->format->cpp[0]*8) {
1016 case 32:
1017 metadata.format = SVGA3D_X8R8G8B8;
1018 break;
1019
1020 case 16:
1021 metadata.format = SVGA3D_R5G6B5;
1022 break;
1023
1024 case 8:
1025 metadata.format = SVGA3D_P8;
1026 break;
1027
1028 default:
1029 DRM_ERROR("Invalid format\n");
1030 return -EINVAL;
1031 }
1032
1033 metadata.mip_levels[0] = 1;
1034 metadata.num_sizes = 1;
1035 metadata.scanout = true;
1036 } else {
1037 metadata = vmw_user_object_surface(&new_vfbs->uo)->metadata;
1038 }
1039
1040 metadata.base_size.width = hdisplay;
1041 metadata.base_size.height = vdisplay;
1042 metadata.base_size.depth = 1;
1043
1044 if (vmw_user_object_surface(&vps->uo)) {
1045 struct drm_vmw_size cur_base_size =
1046 vmw_user_object_surface(&vps->uo)->metadata.base_size;
1047
1048 if (cur_base_size.width != metadata.base_size.width ||
1049 cur_base_size.height != metadata.base_size.height ||
1050 vmw_user_object_surface(&vps->uo)->metadata.format != metadata.format) {
1051 WARN_ON(vps->pinned != 0);
1052 vmw_user_object_unref(&vps->uo);
1053 }
1054
1055 }
1056
1057 if (!vmw_user_object_surface(&vps->uo)) {
1058 ret = vmw_gb_surface_define(dev_priv, &metadata,
1059 &vps->uo.surface);
1060 if (ret != 0) {
1061 DRM_ERROR("Couldn't allocate STDU surface.\n");
1062 return ret;
1063 }
1064 }
1065 } else {
1066 /*
1067 * prepare_fb and clean_fb should only take care of pinning
1068 * and unpinning. References are tracked by state objects.
1069 * The only time we add a reference in prepare_fb is if the
1070 * state object doesn't have a reference to begin with
1071 */
1072 if (vmw_user_object_surface(&vps->uo)) {
1073 WARN_ON(vps->pinned != 0);
1074 vmw_user_object_unref(&vps->uo);
1075 }
1076
1077 memcpy(&vps->uo, &new_vfbs->uo, sizeof(vps->uo));
1078 vmw_user_object_ref(&vps->uo);
1079 }
1080
1081 if (vmw_user_object_surface(&vps->uo)) {
1082
1083 /* Pin new surface before flipping */
1084 ret = vmw_resource_pin(&vmw_user_object_surface(&vps->uo)->res, false);
1085 if (ret)
1086 goto out_srf_unref;
1087
1088 vps->pinned++;
1089 }
1090
1091 vps->content_fb_type = new_content_type;
1092
1093 /*
1094 * The drm fb code will do blit's via the vmap interface, which doesn't
1095 * trigger vmw_bo page dirty tracking due to being kernel side (and thus
1096 * doesn't require mmap'ing) so we have to update the surface's dirty
1097 * regions by hand but we want to be careful to not overwrite the
1098 * resource if it has been written to by the gpu (res_dirty).
1099 */
1100 if (vps->uo.buffer && vps->uo.buffer->is_dumb) {
1101 struct vmw_surface *surf = vmw_user_object_surface(&vps->uo);
1102 struct vmw_resource *res = &surf->res;
1103
1104 if (!res->res_dirty && drm_atomic_helper_damage_merged(old_state,
1105 new_state,
1106 &rect)) {
1107 /*
1108 * At some point it might be useful to actually translate
1109 * (rect.x1, rect.y1) => start, and (rect.x2, rect.y2) => end,
1110 * but currently the fb code will just report the entire fb
1111 * dirty so in practice it doesn't matter.
1112 */
1113 pgoff_t start = res->guest_memory_offset >> PAGE_SHIFT;
1114 pgoff_t end = __KERNEL_DIV_ROUND_UP(res->guest_memory_offset +
1115 res->guest_memory_size,
1116 PAGE_SIZE);
1117 vmw_resource_dirty_update(res, start, end);
1118 }
1119 }
1120
1121 /*
1122 * This should only happen if the buffer object is too large to create a
1123 * proxy surface for.
1124 */
1125 if (vps->content_fb_type == SEPARATE_BO)
1126 vps->cpp = new_fb->pitches[0] / new_fb->width;
1127
1128 return 0;
1129
1130out_srf_unref:
1131 vmw_user_object_unref(&vps->uo);
1132 return ret;
1133}
1134
1135static uint32_t vmw_stdu_bo_fifo_size_cpu(struct vmw_du_update_plane *update,
1136 uint32_t num_hits)
1137{
1138 return sizeof(struct vmw_stdu_update_gb_image) +
1139 sizeof(struct vmw_stdu_update);
1140}
1141
1142static uint32_t vmw_stdu_bo_pre_clip_cpu(struct vmw_du_update_plane *update,
1143 void *cmd, uint32_t num_hits)
1144{
1145 struct vmw_du_update_plane_buffer *bo_update =
1146 container_of(update, typeof(*bo_update), base);
1147
1148 bo_update->fb_left = INT_MAX;
1149 bo_update->fb_top = INT_MAX;
1150
1151 return 0;
1152}
1153
1154static uint32_t vmw_stdu_bo_clip_cpu(struct vmw_du_update_plane *update,
1155 void *cmd, struct drm_rect *clip,
1156 uint32_t fb_x, uint32_t fb_y)
1157{
1158 struct vmw_du_update_plane_buffer *bo_update =
1159 container_of(update, typeof(*bo_update), base);
1160
1161 bo_update->fb_left = min_t(int, bo_update->fb_left, fb_x);
1162 bo_update->fb_top = min_t(int, bo_update->fb_top, fb_y);
1163
1164 return 0;
1165}
1166
1167static uint32_t
1168vmw_stdu_bo_populate_update_cpu(struct vmw_du_update_plane *update, void *cmd,
1169 struct drm_rect *bb)
1170{
1171 struct vmw_du_update_plane_buffer *bo_update;
1172 struct vmw_screen_target_display_unit *stdu;
1173 struct vmw_framebuffer_bo *vfbbo;
1174 struct vmw_diff_cpy diff = VMW_CPU_BLIT_DIFF_INITIALIZER(0);
1175 struct vmw_stdu_update_gb_image *cmd_img = cmd;
1176 struct vmw_stdu_update *cmd_update;
1177 struct vmw_bo *src_bo, *dst_bo;
1178 u32 src_offset, dst_offset;
1179 s32 src_pitch, dst_pitch;
1180 s32 width, height;
1181
1182 bo_update = container_of(update, typeof(*bo_update), base);
1183 stdu = container_of(update->du, typeof(*stdu), base);
1184 vfbbo = container_of(update->vfb, typeof(*vfbbo), base);
1185
1186 width = bb->x2 - bb->x1;
1187 height = bb->y2 - bb->y1;
1188
1189 diff.cpp = stdu->cpp;
1190
1191 dst_bo = stdu->display_srf->res.guest_memory_bo;
1192 dst_pitch = stdu->display_srf->metadata.base_size.width * stdu->cpp;
1193 dst_offset = bb->y1 * dst_pitch + bb->x1 * stdu->cpp;
1194
1195 src_bo = vfbbo->buffer;
1196 src_pitch = update->vfb->base.pitches[0];
1197 src_offset = bo_update->fb_top * src_pitch + bo_update->fb_left *
1198 stdu->cpp;
1199
1200 (void) vmw_bo_cpu_blit(dst_bo, dst_offset, dst_pitch, src_bo,
1201 src_offset, src_pitch, width * stdu->cpp, height,
1202 &diff);
1203
1204 if (drm_rect_visible(&diff.rect)) {
1205 SVGA3dBox *box = &cmd_img->body.box;
1206
1207 cmd_img->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
1208 cmd_img->header.size = sizeof(cmd_img->body);
1209 cmd_img->body.image.sid = stdu->display_srf->res.id;
1210 cmd_img->body.image.face = 0;
1211 cmd_img->body.image.mipmap = 0;
1212
1213 box->x = diff.rect.x1;
1214 box->y = diff.rect.y1;
1215 box->z = 0;
1216 box->w = drm_rect_width(&diff.rect);
1217 box->h = drm_rect_height(&diff.rect);
1218 box->d = 1;
1219
1220 cmd_update = (struct vmw_stdu_update *)&cmd_img[1];
1221 vmw_stdu_populate_update(cmd_update, stdu->base.unit,
1222 diff.rect.x1, diff.rect.x2,
1223 diff.rect.y1, diff.rect.y2);
1224
1225 return sizeof(*cmd_img) + sizeof(*cmd_update);
1226 }
1227
1228 return 0;
1229}
1230
1231/**
1232 * vmw_stdu_plane_update_bo - Update display unit for bo backed fb.
1233 * @dev_priv: device private.
1234 * @plane: plane state.
1235 * @old_state: old plane state.
1236 * @vfb: framebuffer which is blitted to display unit.
1237 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj.
1238 * The returned fence pointer may be NULL in which case the device
1239 * has already synchronized.
1240 *
1241 * Return: 0 on success or a negative error code on failure.
1242 */
1243static int vmw_stdu_plane_update_bo(struct vmw_private *dev_priv,
1244 struct drm_plane *plane,
1245 struct drm_plane_state *old_state,
1246 struct vmw_framebuffer *vfb,
1247 struct vmw_fence_obj **out_fence)
1248{
1249 struct vmw_du_update_plane_buffer bo_update;
1250
1251 memset(&bo_update, 0, sizeof(struct vmw_du_update_plane_buffer));
1252 bo_update.base.plane = plane;
1253 bo_update.base.old_state = old_state;
1254 bo_update.base.dev_priv = dev_priv;
1255 bo_update.base.du = vmw_crtc_to_du(plane->state->crtc);
1256 bo_update.base.vfb = vfb;
1257 bo_update.base.out_fence = out_fence;
1258 bo_update.base.mutex = NULL;
1259 bo_update.base.intr = false;
1260
1261 bo_update.base.calc_fifo_size = vmw_stdu_bo_fifo_size_cpu;
1262 bo_update.base.pre_clip = vmw_stdu_bo_pre_clip_cpu;
1263 bo_update.base.clip = vmw_stdu_bo_clip_cpu;
1264 bo_update.base.post_clip = vmw_stdu_bo_populate_update_cpu;
1265
1266 return vmw_du_helper_plane_update(&bo_update.base);
1267}
1268
1269static uint32_t
1270vmw_stdu_surface_fifo_size_same_display(struct vmw_du_update_plane *update,
1271 uint32_t num_hits)
1272{
1273 uint32_t size = 0;
1274
1275 size += sizeof(struct vmw_stdu_update);
1276
1277 return size;
1278}
1279
1280static uint32_t vmw_stdu_surface_fifo_size(struct vmw_du_update_plane *update,
1281 uint32_t num_hits)
1282{
1283 uint32_t size = 0;
1284
1285 size += sizeof(struct vmw_stdu_surface_copy) + sizeof(SVGA3dCopyBox) *
1286 num_hits + sizeof(struct vmw_stdu_update);
1287
1288 return size;
1289}
1290
1291static uint32_t
1292vmw_stdu_surface_populate_copy(struct vmw_du_update_plane *update, void *cmd,
1293 uint32_t num_hits)
1294{
1295 struct vmw_screen_target_display_unit *stdu;
1296 struct vmw_framebuffer_surface *vfbs;
1297 struct vmw_stdu_surface_copy *cmd_copy = cmd;
1298
1299 stdu = container_of(update->du, typeof(*stdu), base);
1300 vfbs = container_of(update->vfb, typeof(*vfbs), base);
1301
1302 cmd_copy->header.id = SVGA_3D_CMD_SURFACE_COPY;
1303 cmd_copy->header.size = sizeof(cmd_copy->body) + sizeof(SVGA3dCopyBox) *
1304 num_hits;
1305 cmd_copy->body.src.sid = vmw_user_object_surface(&vfbs->uo)->res.id;
1306 cmd_copy->body.dest.sid = stdu->display_srf->res.id;
1307
1308 return sizeof(*cmd_copy);
1309}
1310
1311static uint32_t
1312vmw_stdu_surface_populate_clip(struct vmw_du_update_plane *update, void *cmd,
1313 struct drm_rect *clip, uint32_t fb_x,
1314 uint32_t fb_y)
1315{
1316 struct SVGA3dCopyBox *box = cmd;
1317
1318 box->srcx = fb_x;
1319 box->srcy = fb_y;
1320 box->srcz = 0;
1321 box->x = clip->x1;
1322 box->y = clip->y1;
1323 box->z = 0;
1324 box->w = drm_rect_width(clip);
1325 box->h = drm_rect_height(clip);
1326 box->d = 1;
1327
1328 return sizeof(*box);
1329}
1330
1331static uint32_t
1332vmw_stdu_surface_populate_update(struct vmw_du_update_plane *update, void *cmd,
1333 struct drm_rect *bb)
1334{
1335 vmw_stdu_populate_update(cmd, update->du->unit, bb->x1, bb->x2, bb->y1,
1336 bb->y2);
1337
1338 return sizeof(struct vmw_stdu_update);
1339}
1340
1341/**
1342 * vmw_stdu_plane_update_surface - Update display unit for surface backed fb
1343 * @dev_priv: Device private
1344 * @plane: Plane state
1345 * @old_state: Old plane state
1346 * @vfb: Framebuffer which is blitted to display unit
1347 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj.
1348 * The returned fence pointer may be NULL in which case the device
1349 * has already synchronized.
1350 *
1351 * Return: 0 on success or a negative error code on failure.
1352 */
1353static int vmw_stdu_plane_update_surface(struct vmw_private *dev_priv,
1354 struct drm_plane *plane,
1355 struct drm_plane_state *old_state,
1356 struct vmw_framebuffer *vfb,
1357 struct vmw_fence_obj **out_fence)
1358{
1359 struct vmw_du_update_plane srf_update;
1360 struct vmw_screen_target_display_unit *stdu;
1361 struct vmw_framebuffer_surface *vfbs;
1362
1363 stdu = vmw_crtc_to_stdu(plane->state->crtc);
1364 vfbs = container_of(vfb, typeof(*vfbs), base);
1365
1366 memset(&srf_update, 0, sizeof(struct vmw_du_update_plane));
1367 srf_update.plane = plane;
1368 srf_update.old_state = old_state;
1369 srf_update.dev_priv = dev_priv;
1370 srf_update.du = vmw_crtc_to_du(plane->state->crtc);
1371 srf_update.vfb = vfb;
1372 srf_update.out_fence = out_fence;
1373 srf_update.mutex = &dev_priv->cmdbuf_mutex;
1374 srf_update.intr = true;
1375
1376 if (vmw_user_object_surface(&vfbs->uo)->res.id != stdu->display_srf->res.id) {
1377 srf_update.calc_fifo_size = vmw_stdu_surface_fifo_size;
1378 srf_update.pre_clip = vmw_stdu_surface_populate_copy;
1379 srf_update.clip = vmw_stdu_surface_populate_clip;
1380 } else {
1381 srf_update.calc_fifo_size =
1382 vmw_stdu_surface_fifo_size_same_display;
1383 }
1384
1385 srf_update.post_clip = vmw_stdu_surface_populate_update;
1386
1387 return vmw_du_helper_plane_update(&srf_update);
1388}
1389
1390/**
1391 * vmw_stdu_primary_plane_atomic_update - formally switches STDU to new plane
1392 * @plane: display plane
1393 * @state: Only used to get crtc info
1394 *
1395 * Formally update stdu->display_srf to the new plane, and bind the new
1396 * plane STDU. This function is called during the commit phase when
1397 * all the preparation have been done and all the configurations have
1398 * been checked.
1399 */
1400static void
1401vmw_stdu_primary_plane_atomic_update(struct drm_plane *plane,
1402 struct drm_atomic_state *state)
1403{
1404 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state, plane);
1405 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state, plane);
1406 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
1407 struct drm_crtc *crtc = new_state->crtc;
1408 struct vmw_screen_target_display_unit *stdu;
1409 struct vmw_fence_obj *fence = NULL;
1410 struct vmw_private *dev_priv;
1411 int ret;
1412
1413 /* If case of device error, maintain consistent atomic state */
1414 if (crtc && new_state->fb) {
1415 struct vmw_framebuffer *vfb =
1416 vmw_framebuffer_to_vfb(new_state->fb);
1417 stdu = vmw_crtc_to_stdu(crtc);
1418 dev_priv = vmw_priv(crtc->dev);
1419
1420 stdu->display_srf = vmw_user_object_surface(&vps->uo);
1421 stdu->content_fb_type = vps->content_fb_type;
1422 stdu->cpp = vps->cpp;
1423
1424 ret = vmw_stdu_bind_st(dev_priv, stdu, &stdu->display_srf->res);
1425 if (ret)
1426 DRM_ERROR("Failed to bind surface to STDU.\n");
1427
1428 if (vfb->bo)
1429 ret = vmw_stdu_plane_update_bo(dev_priv, plane,
1430 old_state, vfb, &fence);
1431 else
1432 ret = vmw_stdu_plane_update_surface(dev_priv, plane,
1433 old_state, vfb,
1434 &fence);
1435 if (ret)
1436 DRM_ERROR("Failed to update STDU.\n");
1437 } else {
1438 crtc = old_state->crtc;
1439 stdu = vmw_crtc_to_stdu(crtc);
1440 dev_priv = vmw_priv(crtc->dev);
1441
1442 /* Blank STDU when fb and crtc are NULL */
1443 if (!stdu->defined)
1444 return;
1445
1446 ret = vmw_stdu_bind_st(dev_priv, stdu, NULL);
1447 if (ret)
1448 DRM_ERROR("Failed to blank STDU\n");
1449
1450 ret = vmw_stdu_update_st(dev_priv, stdu);
1451 if (ret)
1452 DRM_ERROR("Failed to update STDU.\n");
1453
1454 return;
1455 }
1456
1457 if (fence)
1458 vmw_fence_obj_unreference(&fence);
1459}
1460
1461static void
1462vmw_stdu_crtc_atomic_flush(struct drm_crtc *crtc,
1463 struct drm_atomic_state *state)
1464{
1465 struct vmw_private *vmw = vmw_priv(crtc->dev);
1466 struct vmw_screen_target_display_unit *stdu = vmw_crtc_to_stdu(crtc);
1467
1468 if (vmw->vkms_enabled)
1469 vmw_vkms_set_crc_surface(crtc, stdu->display_srf);
1470 vmw_vkms_crtc_atomic_flush(crtc, state);
1471}
1472
1473static const struct drm_plane_funcs vmw_stdu_plane_funcs = {
1474 .update_plane = drm_atomic_helper_update_plane,
1475 .disable_plane = drm_atomic_helper_disable_plane,
1476 .destroy = vmw_du_primary_plane_destroy,
1477 .reset = vmw_du_plane_reset,
1478 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
1479 .atomic_destroy_state = vmw_du_plane_destroy_state,
1480};
1481
1482static const struct drm_plane_funcs vmw_stdu_cursor_funcs = {
1483 .update_plane = drm_atomic_helper_update_plane,
1484 .disable_plane = drm_atomic_helper_disable_plane,
1485 .destroy = vmw_du_cursor_plane_destroy,
1486 .reset = vmw_du_plane_reset,
1487 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
1488 .atomic_destroy_state = vmw_du_plane_destroy_state,
1489};
1490
1491
1492/*
1493 * Atomic Helpers
1494 */
1495static const struct
1496drm_plane_helper_funcs vmw_stdu_cursor_plane_helper_funcs = {
1497 .atomic_check = vmw_du_cursor_plane_atomic_check,
1498 .atomic_update = vmw_du_cursor_plane_atomic_update,
1499 .prepare_fb = vmw_du_cursor_plane_prepare_fb,
1500 .cleanup_fb = vmw_du_cursor_plane_cleanup_fb,
1501};
1502
1503static const struct
1504drm_plane_helper_funcs vmw_stdu_primary_plane_helper_funcs = {
1505 .atomic_check = vmw_du_primary_plane_atomic_check,
1506 .atomic_update = vmw_stdu_primary_plane_atomic_update,
1507 .prepare_fb = vmw_stdu_primary_plane_prepare_fb,
1508 .cleanup_fb = vmw_stdu_primary_plane_cleanup_fb,
1509};
1510
1511static const struct drm_crtc_helper_funcs vmw_stdu_crtc_helper_funcs = {
1512 .mode_set_nofb = vmw_stdu_crtc_mode_set_nofb,
1513 .atomic_check = vmw_du_crtc_atomic_check,
1514 .atomic_begin = vmw_du_crtc_atomic_begin,
1515 .atomic_flush = vmw_stdu_crtc_atomic_flush,
1516 .atomic_enable = vmw_vkms_crtc_atomic_enable,
1517 .atomic_disable = vmw_stdu_crtc_atomic_disable,
1518};
1519
1520
1521/**
1522 * vmw_stdu_init - Sets up a Screen Target Display Unit
1523 *
1524 * @dev_priv: VMW DRM device
1525 * @unit: unit number range from 0 to VMWGFX_NUM_DISPLAY_UNITS
1526 *
1527 * This function is called once per CRTC, and allocates one Screen Target
1528 * display unit to represent that CRTC. Since the SVGA device does not separate
1529 * out encoder and connector, they are represented as part of the STDU as well.
1530 *
1531 * Returns: %0 on success or -errno code on failure
1532 */
1533static int vmw_stdu_init(struct vmw_private *dev_priv, unsigned unit)
1534{
1535 struct vmw_screen_target_display_unit *stdu;
1536 struct drm_device *dev = &dev_priv->drm;
1537 struct drm_connector *connector;
1538 struct drm_encoder *encoder;
1539 struct drm_plane *primary;
1540 struct vmw_cursor_plane *cursor;
1541 struct drm_crtc *crtc;
1542 int ret;
1543
1544 stdu = kzalloc(sizeof(*stdu), GFP_KERNEL);
1545 if (!stdu)
1546 return -ENOMEM;
1547
1548 stdu->base.unit = unit;
1549 crtc = &stdu->base.crtc;
1550 encoder = &stdu->base.encoder;
1551 connector = &stdu->base.connector;
1552 primary = &stdu->base.primary;
1553 cursor = &stdu->base.cursor;
1554
1555 stdu->base.pref_active = (unit == 0);
1556 stdu->base.pref_width = dev_priv->initial_width;
1557 stdu->base.pref_height = dev_priv->initial_height;
1558 stdu->base.is_implicit = false;
1559
1560 /* Initialize primary plane */
1561 ret = drm_universal_plane_init(dev, primary,
1562 0, &vmw_stdu_plane_funcs,
1563 vmw_primary_plane_formats,
1564 ARRAY_SIZE(vmw_primary_plane_formats),
1565 NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
1566 if (ret) {
1567 DRM_ERROR("Failed to initialize primary plane");
1568 goto err_free;
1569 }
1570
1571 drm_plane_helper_add(primary, &vmw_stdu_primary_plane_helper_funcs);
1572 drm_plane_enable_fb_damage_clips(primary);
1573
1574 /* Initialize cursor plane */
1575 ret = drm_universal_plane_init(dev, &cursor->base,
1576 0, &vmw_stdu_cursor_funcs,
1577 vmw_cursor_plane_formats,
1578 ARRAY_SIZE(vmw_cursor_plane_formats),
1579 NULL, DRM_PLANE_TYPE_CURSOR, NULL);
1580 if (ret) {
1581 DRM_ERROR("Failed to initialize cursor plane");
1582 drm_plane_cleanup(&stdu->base.primary);
1583 goto err_free;
1584 }
1585
1586 drm_plane_helper_add(&cursor->base, &vmw_stdu_cursor_plane_helper_funcs);
1587
1588 ret = drm_connector_init(dev, connector, &vmw_stdu_connector_funcs,
1589 DRM_MODE_CONNECTOR_VIRTUAL);
1590 if (ret) {
1591 DRM_ERROR("Failed to initialize connector\n");
1592 goto err_free;
1593 }
1594
1595 drm_connector_helper_add(connector, &vmw_stdu_connector_helper_funcs);
1596 connector->status = vmw_du_connector_detect(connector, false);
1597
1598 ret = drm_encoder_init(dev, encoder, &vmw_stdu_encoder_funcs,
1599 DRM_MODE_ENCODER_VIRTUAL, NULL);
1600 if (ret) {
1601 DRM_ERROR("Failed to initialize encoder\n");
1602 goto err_free_connector;
1603 }
1604
1605 (void) drm_connector_attach_encoder(connector, encoder);
1606 encoder->possible_crtcs = (1 << unit);
1607 encoder->possible_clones = 0;
1608
1609 ret = drm_connector_register(connector);
1610 if (ret) {
1611 DRM_ERROR("Failed to register connector\n");
1612 goto err_free_encoder;
1613 }
1614
1615 ret = drm_crtc_init_with_planes(dev, crtc, primary,
1616 &cursor->base,
1617 &vmw_stdu_crtc_funcs, NULL);
1618 if (ret) {
1619 DRM_ERROR("Failed to initialize CRTC\n");
1620 goto err_free_unregister;
1621 }
1622
1623 drm_crtc_helper_add(crtc, &vmw_stdu_crtc_helper_funcs);
1624
1625 drm_mode_crtc_set_gamma_size(crtc, 256);
1626
1627 drm_object_attach_property(&connector->base,
1628 dev_priv->hotplug_mode_update_property, 1);
1629 drm_object_attach_property(&connector->base,
1630 dev->mode_config.suggested_x_property, 0);
1631 drm_object_attach_property(&connector->base,
1632 dev->mode_config.suggested_y_property, 0);
1633
1634 vmw_du_init(&stdu->base);
1635
1636 return 0;
1637
1638err_free_unregister:
1639 drm_connector_unregister(connector);
1640err_free_encoder:
1641 drm_encoder_cleanup(encoder);
1642err_free_connector:
1643 drm_connector_cleanup(connector);
1644err_free:
1645 kfree(stdu);
1646 return ret;
1647}
1648
1649
1650
1651/**
1652 * vmw_stdu_destroy - Cleans up a vmw_screen_target_display_unit
1653 *
1654 * @stdu: Screen Target Display Unit to be destroyed
1655 *
1656 * Clean up after vmw_stdu_init
1657 */
1658static void vmw_stdu_destroy(struct vmw_screen_target_display_unit *stdu)
1659{
1660 vmw_du_cleanup(&stdu->base);
1661 kfree(stdu);
1662}
1663
1664
1665
1666/******************************************************************************
1667 * Screen Target Display KMS Functions
1668 *
1669 * These functions are called by the common KMS code in vmwgfx_kms.c
1670 *****************************************************************************/
1671
1672/**
1673 * vmw_kms_stdu_init_display - Initializes a Screen Target based display
1674 *
1675 * @dev_priv: VMW DRM device
1676 *
1677 * This function initialize a Screen Target based display device. It checks
1678 * the capability bits to make sure the underlying hardware can support
1679 * screen targets, and then creates the maximum number of CRTCs, a.k.a Display
1680 * Units, as supported by the display hardware.
1681 *
1682 * RETURNS:
1683 * 0 on success, error code otherwise
1684 */
1685int vmw_kms_stdu_init_display(struct vmw_private *dev_priv)
1686{
1687 struct drm_device *dev = &dev_priv->drm;
1688 int i, ret;
1689
1690
1691 /* Do nothing if there's no support for MOBs */
1692 if (!dev_priv->has_mob)
1693 return -ENOSYS;
1694
1695 if (!(dev_priv->capabilities & SVGA_CAP_GBOBJECTS))
1696 return -ENOSYS;
1697
1698 dev_priv->active_display_unit = vmw_du_screen_target;
1699
1700 for (i = 0; i < VMWGFX_NUM_DISPLAY_UNITS; ++i) {
1701 ret = vmw_stdu_init(dev_priv, i);
1702
1703 if (unlikely(ret != 0)) {
1704 drm_err(&dev_priv->drm,
1705 "Failed to initialize STDU %d", i);
1706 return ret;
1707 }
1708 }
1709
1710 drm_mode_config_reset(dev);
1711
1712 return 0;
1713}