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 */
56 struct 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 */
67 struct vmw_kms_sou_readback_blit {
68 uint32 header;
69 SVGAFifoCmdBlitScreenToGMRFB body;
70 };
71
72 struct vmw_kms_sou_bo_blit {
73 uint32 header;
74 SVGAFifoCmdBlitGMRFBToScreen body;
75 };
76
77 struct vmw_kms_sou_dirty_cmd {
78 SVGA3dCmdHeader header;
79 SVGA3dCmdBlitSurfaceToScreen body;
80 };
81
82 struct vmw_kms_sou_define_gmrfb {
83 uint32_t header;
84 SVGAFifoCmdDefineGMRFB body;
85 };
86
87 /**
88 * Display unit using screen objects.
89 */
90 struct 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
vmw_sou_destroy(struct vmw_screen_object_unit * sou)99 static 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
vmw_sou_crtc_destroy(struct drm_crtc * crtc)110 static 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 */
vmw_sou_fifo_create(struct vmw_private * dev_priv,struct vmw_screen_object_unit * sou,int x,int y,struct drm_display_mode * mode)118 static 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 */
vmw_sou_fifo_destroy(struct vmw_private * dev_priv,struct vmw_screen_object_unit * sou)166 static 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 */
vmw_sou_crtc_mode_set_nofb(struct drm_crtc * crtc)212 static 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 */
vmw_sou_crtc_helper_prepare(struct drm_crtc * crtc)270 static 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 */
vmw_sou_crtc_atomic_enable(struct drm_crtc * crtc,struct drm_crtc_state * old_state)281 static 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 */
vmw_sou_crtc_atomic_disable(struct drm_crtc * crtc,struct drm_crtc_state * old_state)291 static 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
314 static 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 .get_vblank_counter = vmw_get_vblank_counter,
323 .enable_vblank = vmw_enable_vblank,
324 .disable_vblank = vmw_disable_vblank,
325 };
326
327 /*
328 * Screen Object Display Unit encoder functions
329 */
330
vmw_sou_encoder_destroy(struct drm_encoder * encoder)331 static void vmw_sou_encoder_destroy(struct drm_encoder *encoder)
332 {
333 vmw_sou_destroy(vmw_encoder_to_sou(encoder));
334 }
335
336 static const struct drm_encoder_funcs vmw_screen_object_encoder_funcs = {
337 .destroy = vmw_sou_encoder_destroy,
338 };
339
340 /*
341 * Screen Object Display Unit connector functions
342 */
343
vmw_sou_connector_destroy(struct drm_connector * connector)344 static void vmw_sou_connector_destroy(struct drm_connector *connector)
345 {
346 vmw_sou_destroy(vmw_connector_to_sou(connector));
347 }
348
349 static const struct drm_connector_funcs vmw_sou_connector_funcs = {
350 .dpms = vmw_du_connector_dpms,
351 .detect = vmw_du_connector_detect,
352 .fill_modes = vmw_du_connector_fill_modes,
353 .destroy = vmw_sou_connector_destroy,
354 .reset = vmw_du_connector_reset,
355 .atomic_duplicate_state = vmw_du_connector_duplicate_state,
356 .atomic_destroy_state = vmw_du_connector_destroy_state,
357 };
358
359
360 static const struct
361 drm_connector_helper_funcs vmw_sou_connector_helper_funcs = {
362 };
363
364
365
366 /*
367 * Screen Object Display Plane Functions
368 */
369
370 /**
371 * vmw_sou_primary_plane_cleanup_fb - Frees sou backing buffer
372 *
373 * @plane: display plane
374 * @old_state: Contains the FB to clean up
375 *
376 * Unpins the display surface
377 *
378 * Returns 0 on success
379 */
380 static void
vmw_sou_primary_plane_cleanup_fb(struct drm_plane * plane,struct drm_plane_state * old_state)381 vmw_sou_primary_plane_cleanup_fb(struct drm_plane *plane,
382 struct drm_plane_state *old_state)
383 {
384 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
385 struct drm_crtc *crtc = plane->state->crtc ?
386 plane->state->crtc : old_state->crtc;
387
388 if (vps->bo)
389 vmw_bo_unpin(vmw_priv(crtc->dev), vps->bo, false);
390 vmw_bo_unreference(&vps->bo);
391 vps->bo_size = 0;
392
393 vmw_du_plane_cleanup_fb(plane, old_state);
394 }
395
396
397 /**
398 * vmw_sou_primary_plane_prepare_fb - allocate backing buffer
399 *
400 * @plane: display plane
401 * @new_state: info on the new plane state, including the FB
402 *
403 * The SOU backing buffer is our equivalent of the display plane.
404 *
405 * Returns 0 on success
406 */
407 static int
vmw_sou_primary_plane_prepare_fb(struct drm_plane * plane,struct drm_plane_state * new_state)408 vmw_sou_primary_plane_prepare_fb(struct drm_plane *plane,
409 struct drm_plane_state *new_state)
410 {
411 struct drm_framebuffer *new_fb = new_state->fb;
412 struct drm_crtc *crtc = plane->state->crtc ?: new_state->crtc;
413 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
414 struct vmw_private *dev_priv;
415 size_t size;
416 int ret;
417
418
419 if (!new_fb) {
420 vmw_bo_unreference(&vps->bo);
421 vps->bo_size = 0;
422
423 return 0;
424 }
425
426 size = new_state->crtc_w * new_state->crtc_h * 4;
427 dev_priv = vmw_priv(crtc->dev);
428
429 if (vps->bo) {
430 if (vps->bo_size == size) {
431 /*
432 * Note that this might temporarily up the pin-count
433 * to 2, until cleanup_fb() is called.
434 */
435 return vmw_bo_pin_in_vram(dev_priv, vps->bo,
436 true);
437 }
438
439 vmw_bo_unreference(&vps->bo);
440 vps->bo_size = 0;
441 }
442
443 vps->bo = kzalloc(sizeof(*vps->bo), GFP_KERNEL);
444 if (!vps->bo)
445 return -ENOMEM;
446
447 vmw_svga_enable(dev_priv);
448
449 /* After we have alloced the backing store might not be able to
450 * resume the overlays, this is preferred to failing to alloc.
451 */
452 vmw_overlay_pause_all(dev_priv);
453 ret = vmw_bo_init(dev_priv, vps->bo, size,
454 &vmw_vram_ne_placement,
455 false, &vmw_bo_bo_free);
456 vmw_overlay_resume_all(dev_priv);
457 if (ret) {
458 vps->bo = NULL; /* vmw_bo_init frees on error */
459 return ret;
460 }
461
462 vps->bo_size = size;
463
464 /*
465 * TTM already thinks the buffer is pinned, but make sure the
466 * pin_count is upped.
467 */
468 return vmw_bo_pin_in_vram(dev_priv, vps->bo, true);
469 }
470
vmw_sou_bo_fifo_size(struct vmw_du_update_plane * update,uint32_t num_hits)471 static uint32_t vmw_sou_bo_fifo_size(struct vmw_du_update_plane *update,
472 uint32_t num_hits)
473 {
474 return sizeof(struct vmw_kms_sou_define_gmrfb) +
475 sizeof(struct vmw_kms_sou_bo_blit) * num_hits;
476 }
477
vmw_sou_bo_define_gmrfb(struct vmw_du_update_plane * update,void * cmd)478 static uint32_t vmw_sou_bo_define_gmrfb(struct vmw_du_update_plane *update,
479 void *cmd)
480 {
481 struct vmw_framebuffer_bo *vfbbo =
482 container_of(update->vfb, typeof(*vfbbo), base);
483 struct vmw_kms_sou_define_gmrfb *gmr = cmd;
484 int depth = update->vfb->base.format->depth;
485
486 /* Emulate RGBA support, contrary to svga_reg.h this is not
487 * supported by hosts. This is only a problem if we are reading
488 * this value later and expecting what we uploaded back.
489 */
490 if (depth == 32)
491 depth = 24;
492
493 gmr->header = SVGA_CMD_DEFINE_GMRFB;
494
495 gmr->body.format.bitsPerPixel = update->vfb->base.format->cpp[0] * 8;
496 gmr->body.format.colorDepth = depth;
497 gmr->body.format.reserved = 0;
498 gmr->body.bytesPerLine = update->vfb->base.pitches[0];
499 vmw_bo_get_guest_ptr(&vfbbo->buffer->base, &gmr->body.ptr);
500
501 return sizeof(*gmr);
502 }
503
vmw_sou_bo_populate_clip(struct vmw_du_update_plane * update,void * cmd,struct drm_rect * clip,uint32_t fb_x,uint32_t fb_y)504 static uint32_t vmw_sou_bo_populate_clip(struct vmw_du_update_plane *update,
505 void *cmd, struct drm_rect *clip,
506 uint32_t fb_x, uint32_t fb_y)
507 {
508 struct vmw_kms_sou_bo_blit *blit = cmd;
509
510 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
511 blit->body.destScreenId = update->du->unit;
512 blit->body.srcOrigin.x = fb_x;
513 blit->body.srcOrigin.y = fb_y;
514 blit->body.destRect.left = clip->x1;
515 blit->body.destRect.top = clip->y1;
516 blit->body.destRect.right = clip->x2;
517 blit->body.destRect.bottom = clip->y2;
518
519 return sizeof(*blit);
520 }
521
vmw_stud_bo_post_clip(struct vmw_du_update_plane * update,void * cmd,struct drm_rect * bb)522 static uint32_t vmw_stud_bo_post_clip(struct vmw_du_update_plane *update,
523 void *cmd, struct drm_rect *bb)
524 {
525 return 0;
526 }
527
528 /**
529 * vmw_sou_plane_update_bo - Update display unit for bo backed fb.
530 * @dev_priv: Device private.
531 * @plane: Plane state.
532 * @old_state: Old plane state.
533 * @vfb: Framebuffer which is blitted to display unit.
534 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj.
535 * The returned fence pointer may be NULL in which case the device
536 * has already synchronized.
537 *
538 * Return: 0 on success or a negative error code on failure.
539 */
vmw_sou_plane_update_bo(struct vmw_private * dev_priv,struct drm_plane * plane,struct drm_plane_state * old_state,struct vmw_framebuffer * vfb,struct vmw_fence_obj ** out_fence)540 static int vmw_sou_plane_update_bo(struct vmw_private *dev_priv,
541 struct drm_plane *plane,
542 struct drm_plane_state *old_state,
543 struct vmw_framebuffer *vfb,
544 struct vmw_fence_obj **out_fence)
545 {
546 struct vmw_du_update_plane_buffer bo_update;
547
548 memset(&bo_update, 0, sizeof(struct vmw_du_update_plane_buffer));
549 bo_update.base.plane = plane;
550 bo_update.base.old_state = old_state;
551 bo_update.base.dev_priv = dev_priv;
552 bo_update.base.du = vmw_crtc_to_du(plane->state->crtc);
553 bo_update.base.vfb = vfb;
554 bo_update.base.out_fence = out_fence;
555 bo_update.base.mutex = NULL;
556 bo_update.base.cpu_blit = false;
557 bo_update.base.intr = true;
558
559 bo_update.base.calc_fifo_size = vmw_sou_bo_fifo_size;
560 bo_update.base.post_prepare = vmw_sou_bo_define_gmrfb;
561 bo_update.base.clip = vmw_sou_bo_populate_clip;
562 bo_update.base.post_clip = vmw_stud_bo_post_clip;
563
564 return vmw_du_helper_plane_update(&bo_update.base);
565 }
566
vmw_sou_surface_fifo_size(struct vmw_du_update_plane * update,uint32_t num_hits)567 static uint32_t vmw_sou_surface_fifo_size(struct vmw_du_update_plane *update,
568 uint32_t num_hits)
569 {
570 return sizeof(struct vmw_kms_sou_dirty_cmd) + sizeof(SVGASignedRect) *
571 num_hits;
572 }
573
vmw_sou_surface_post_prepare(struct vmw_du_update_plane * update,void * cmd)574 static uint32_t vmw_sou_surface_post_prepare(struct vmw_du_update_plane *update,
575 void *cmd)
576 {
577 struct vmw_du_update_plane_surface *srf_update;
578
579 srf_update = container_of(update, typeof(*srf_update), base);
580
581 /*
582 * SOU SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN is special in the sense that
583 * its bounding box is filled before iterating over all the clips. So
584 * store the FIFO start address and revisit to fill the details.
585 */
586 srf_update->cmd_start = cmd;
587
588 return 0;
589 }
590
vmw_sou_surface_pre_clip(struct vmw_du_update_plane * update,void * cmd,uint32_t num_hits)591 static uint32_t vmw_sou_surface_pre_clip(struct vmw_du_update_plane *update,
592 void *cmd, uint32_t num_hits)
593 {
594 struct vmw_kms_sou_dirty_cmd *blit = cmd;
595 struct vmw_framebuffer_surface *vfbs;
596
597 vfbs = container_of(update->vfb, typeof(*vfbs), base);
598
599 blit->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN;
600 blit->header.size = sizeof(blit->body) + sizeof(SVGASignedRect) *
601 num_hits;
602
603 blit->body.srcImage.sid = vfbs->surface->res.id;
604 blit->body.destScreenId = update->du->unit;
605
606 /* Update the source and destination bounding box later in post_clip */
607 blit->body.srcRect.left = 0;
608 blit->body.srcRect.top = 0;
609 blit->body.srcRect.right = 0;
610 blit->body.srcRect.bottom = 0;
611
612 blit->body.destRect.left = 0;
613 blit->body.destRect.top = 0;
614 blit->body.destRect.right = 0;
615 blit->body.destRect.bottom = 0;
616
617 return sizeof(*blit);
618 }
619
vmw_sou_surface_clip_rect(struct vmw_du_update_plane * update,void * cmd,struct drm_rect * clip,uint32_t src_x,uint32_t src_y)620 static uint32_t vmw_sou_surface_clip_rect(struct vmw_du_update_plane *update,
621 void *cmd, struct drm_rect *clip,
622 uint32_t src_x, uint32_t src_y)
623 {
624 SVGASignedRect *rect = cmd;
625
626 /*
627 * rects are relative to dest bounding box rect on screen object, so
628 * translate to it later in post_clip
629 */
630 rect->left = clip->x1;
631 rect->top = clip->y1;
632 rect->right = clip->x2;
633 rect->bottom = clip->y2;
634
635 return sizeof(*rect);
636 }
637
vmw_sou_surface_post_clip(struct vmw_du_update_plane * update,void * cmd,struct drm_rect * bb)638 static uint32_t vmw_sou_surface_post_clip(struct vmw_du_update_plane *update,
639 void *cmd, struct drm_rect *bb)
640 {
641 struct vmw_du_update_plane_surface *srf_update;
642 struct drm_plane_state *state = update->plane->state;
643 struct drm_rect src_bb;
644 struct vmw_kms_sou_dirty_cmd *blit;
645 SVGASignedRect *rect;
646 uint32_t num_hits;
647 int translate_src_x;
648 int translate_src_y;
649 int i;
650
651 srf_update = container_of(update, typeof(*srf_update), base);
652
653 blit = srf_update->cmd_start;
654 rect = (SVGASignedRect *)&blit[1];
655
656 num_hits = (blit->header.size - sizeof(blit->body))/
657 sizeof(SVGASignedRect);
658
659 src_bb = *bb;
660
661 /* To translate bb back to fb src coord */
662 translate_src_x = (state->src_x >> 16) - state->crtc_x;
663 translate_src_y = (state->src_y >> 16) - state->crtc_y;
664
665 drm_rect_translate(&src_bb, translate_src_x, translate_src_y);
666
667 blit->body.srcRect.left = src_bb.x1;
668 blit->body.srcRect.top = src_bb.y1;
669 blit->body.srcRect.right = src_bb.x2;
670 blit->body.srcRect.bottom = src_bb.y2;
671
672 blit->body.destRect.left = bb->x1;
673 blit->body.destRect.top = bb->y1;
674 blit->body.destRect.right = bb->x2;
675 blit->body.destRect.bottom = bb->y2;
676
677 /* rects are relative to dest bb rect */
678 for (i = 0; i < num_hits; i++) {
679 rect->left -= bb->x1;
680 rect->top -= bb->y1;
681 rect->right -= bb->x1;
682 rect->bottom -= bb->y1;
683 rect++;
684 }
685
686 return 0;
687 }
688
689 /**
690 * vmw_sou_plane_update_surface - Update display unit for surface backed fb.
691 * @dev_priv: Device private.
692 * @plane: Plane state.
693 * @old_state: Old plane state.
694 * @vfb: Framebuffer which is blitted to display unit
695 * @out_fence: If non-NULL, will return a ref-counted pointer to vmw_fence_obj.
696 * The returned fence pointer may be NULL in which case the device
697 * has already synchronized.
698 *
699 * Return: 0 on success or a negative error code on failure.
700 */
vmw_sou_plane_update_surface(struct vmw_private * dev_priv,struct drm_plane * plane,struct drm_plane_state * old_state,struct vmw_framebuffer * vfb,struct vmw_fence_obj ** out_fence)701 static int vmw_sou_plane_update_surface(struct vmw_private *dev_priv,
702 struct drm_plane *plane,
703 struct drm_plane_state *old_state,
704 struct vmw_framebuffer *vfb,
705 struct vmw_fence_obj **out_fence)
706 {
707 struct vmw_du_update_plane_surface srf_update;
708
709 memset(&srf_update, 0, sizeof(struct vmw_du_update_plane_surface));
710 srf_update.base.plane = plane;
711 srf_update.base.old_state = old_state;
712 srf_update.base.dev_priv = dev_priv;
713 srf_update.base.du = vmw_crtc_to_du(plane->state->crtc);
714 srf_update.base.vfb = vfb;
715 srf_update.base.out_fence = out_fence;
716 srf_update.base.mutex = &dev_priv->cmdbuf_mutex;
717 srf_update.base.cpu_blit = false;
718 srf_update.base.intr = true;
719
720 srf_update.base.calc_fifo_size = vmw_sou_surface_fifo_size;
721 srf_update.base.post_prepare = vmw_sou_surface_post_prepare;
722 srf_update.base.pre_clip = vmw_sou_surface_pre_clip;
723 srf_update.base.clip = vmw_sou_surface_clip_rect;
724 srf_update.base.post_clip = vmw_sou_surface_post_clip;
725
726 return vmw_du_helper_plane_update(&srf_update.base);
727 }
728
729 static void
vmw_sou_primary_plane_atomic_update(struct drm_plane * plane,struct drm_plane_state * old_state)730 vmw_sou_primary_plane_atomic_update(struct drm_plane *plane,
731 struct drm_plane_state *old_state)
732 {
733 struct drm_crtc *crtc = plane->state->crtc;
734 struct drm_pending_vblank_event *event = NULL;
735 struct vmw_fence_obj *fence = NULL;
736 int ret;
737
738 /* In case of device error, maintain consistent atomic state */
739 if (crtc && plane->state->fb) {
740 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
741 struct vmw_framebuffer *vfb =
742 vmw_framebuffer_to_vfb(plane->state->fb);
743
744 if (vfb->bo)
745 ret = vmw_sou_plane_update_bo(dev_priv, plane,
746 old_state, vfb, &fence);
747 else
748 ret = vmw_sou_plane_update_surface(dev_priv, plane,
749 old_state, vfb,
750 &fence);
751 if (ret != 0)
752 DRM_ERROR("Failed to update screen.\n");
753 } else {
754 /* Do nothing when fb and crtc is NULL (blank crtc) */
755 return;
756 }
757
758 /* For error case vblank event is send from vmw_du_crtc_atomic_flush */
759 event = crtc->state->event;
760 if (event && fence) {
761 struct drm_file *file_priv = event->base.file_priv;
762
763 ret = vmw_event_fence_action_queue(file_priv,
764 fence,
765 &event->base,
766 &event->event.vbl.tv_sec,
767 &event->event.vbl.tv_usec,
768 true);
769
770 if (unlikely(ret != 0))
771 DRM_ERROR("Failed to queue event on fence.\n");
772 else
773 crtc->state->event = NULL;
774 }
775
776 if (fence)
777 vmw_fence_obj_unreference(&fence);
778 }
779
780
781 static const struct drm_plane_funcs vmw_sou_plane_funcs = {
782 .update_plane = drm_atomic_helper_update_plane,
783 .disable_plane = drm_atomic_helper_disable_plane,
784 .destroy = vmw_du_primary_plane_destroy,
785 .reset = vmw_du_plane_reset,
786 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
787 .atomic_destroy_state = vmw_du_plane_destroy_state,
788 };
789
790 static const struct drm_plane_funcs vmw_sou_cursor_funcs = {
791 .update_plane = drm_atomic_helper_update_plane,
792 .disable_plane = drm_atomic_helper_disable_plane,
793 .destroy = vmw_du_cursor_plane_destroy,
794 .reset = vmw_du_plane_reset,
795 .atomic_duplicate_state = vmw_du_plane_duplicate_state,
796 .atomic_destroy_state = vmw_du_plane_destroy_state,
797 };
798
799 /*
800 * Atomic Helpers
801 */
802 static const struct
803 drm_plane_helper_funcs vmw_sou_cursor_plane_helper_funcs = {
804 .atomic_check = vmw_du_cursor_plane_atomic_check,
805 .atomic_update = vmw_du_cursor_plane_atomic_update,
806 .prepare_fb = vmw_du_cursor_plane_prepare_fb,
807 .cleanup_fb = vmw_du_plane_cleanup_fb,
808 };
809
810 static const struct
811 drm_plane_helper_funcs vmw_sou_primary_plane_helper_funcs = {
812 .atomic_check = vmw_du_primary_plane_atomic_check,
813 .atomic_update = vmw_sou_primary_plane_atomic_update,
814 .prepare_fb = vmw_sou_primary_plane_prepare_fb,
815 .cleanup_fb = vmw_sou_primary_plane_cleanup_fb,
816 };
817
818 static const struct drm_crtc_helper_funcs vmw_sou_crtc_helper_funcs = {
819 .prepare = vmw_sou_crtc_helper_prepare,
820 .mode_set_nofb = vmw_sou_crtc_mode_set_nofb,
821 .atomic_check = vmw_du_crtc_atomic_check,
822 .atomic_begin = vmw_du_crtc_atomic_begin,
823 .atomic_flush = vmw_du_crtc_atomic_flush,
824 .atomic_enable = vmw_sou_crtc_atomic_enable,
825 .atomic_disable = vmw_sou_crtc_atomic_disable,
826 };
827
828
vmw_sou_init(struct vmw_private * dev_priv,unsigned unit)829 static int vmw_sou_init(struct vmw_private *dev_priv, unsigned unit)
830 {
831 struct vmw_screen_object_unit *sou;
832 struct drm_device *dev = dev_priv->dev;
833 struct drm_connector *connector;
834 struct drm_encoder *encoder;
835 struct drm_plane *primary, *cursor;
836 struct drm_crtc *crtc;
837 int ret;
838
839 sou = kzalloc(sizeof(*sou), GFP_KERNEL);
840 if (!sou)
841 return -ENOMEM;
842
843 sou->base.unit = unit;
844 crtc = &sou->base.crtc;
845 encoder = &sou->base.encoder;
846 connector = &sou->base.connector;
847 primary = &sou->base.primary;
848 cursor = &sou->base.cursor;
849
850 sou->base.pref_active = (unit == 0);
851 sou->base.pref_width = dev_priv->initial_width;
852 sou->base.pref_height = dev_priv->initial_height;
853 sou->base.pref_mode = NULL;
854
855 /*
856 * Remove this after enabling atomic because property values can
857 * only exist in a state object
858 */
859 sou->base.is_implicit = false;
860
861 /* Initialize primary plane */
862 ret = drm_universal_plane_init(dev, &sou->base.primary,
863 0, &vmw_sou_plane_funcs,
864 vmw_primary_plane_formats,
865 ARRAY_SIZE(vmw_primary_plane_formats),
866 NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
867 if (ret) {
868 DRM_ERROR("Failed to initialize primary plane");
869 goto err_free;
870 }
871
872 drm_plane_helper_add(primary, &vmw_sou_primary_plane_helper_funcs);
873 drm_plane_enable_fb_damage_clips(primary);
874
875 /* Initialize cursor plane */
876 ret = drm_universal_plane_init(dev, &sou->base.cursor,
877 0, &vmw_sou_cursor_funcs,
878 vmw_cursor_plane_formats,
879 ARRAY_SIZE(vmw_cursor_plane_formats),
880 NULL, DRM_PLANE_TYPE_CURSOR, NULL);
881 if (ret) {
882 DRM_ERROR("Failed to initialize cursor plane");
883 drm_plane_cleanup(&sou->base.primary);
884 goto err_free;
885 }
886
887 drm_plane_helper_add(cursor, &vmw_sou_cursor_plane_helper_funcs);
888
889 ret = drm_connector_init(dev, connector, &vmw_sou_connector_funcs,
890 DRM_MODE_CONNECTOR_VIRTUAL);
891 if (ret) {
892 DRM_ERROR("Failed to initialize connector\n");
893 goto err_free;
894 }
895
896 drm_connector_helper_add(connector, &vmw_sou_connector_helper_funcs);
897 connector->status = vmw_du_connector_detect(connector, true);
898
899 ret = drm_encoder_init(dev, encoder, &vmw_screen_object_encoder_funcs,
900 DRM_MODE_ENCODER_VIRTUAL, NULL);
901 if (ret) {
902 DRM_ERROR("Failed to initialize encoder\n");
903 goto err_free_connector;
904 }
905
906 (void) drm_connector_attach_encoder(connector, encoder);
907 encoder->possible_crtcs = (1 << unit);
908 encoder->possible_clones = 0;
909
910 ret = drm_connector_register(connector);
911 if (ret) {
912 DRM_ERROR("Failed to register connector\n");
913 goto err_free_encoder;
914 }
915
916 ret = drm_crtc_init_with_planes(dev, crtc, &sou->base.primary,
917 &sou->base.cursor,
918 &vmw_screen_object_crtc_funcs, NULL);
919 if (ret) {
920 DRM_ERROR("Failed to initialize CRTC\n");
921 goto err_free_unregister;
922 }
923
924 drm_crtc_helper_add(crtc, &vmw_sou_crtc_helper_funcs);
925
926 drm_mode_crtc_set_gamma_size(crtc, 256);
927
928 drm_object_attach_property(&connector->base,
929 dev_priv->hotplug_mode_update_property, 1);
930 drm_object_attach_property(&connector->base,
931 dev->mode_config.suggested_x_property, 0);
932 drm_object_attach_property(&connector->base,
933 dev->mode_config.suggested_y_property, 0);
934 return 0;
935
936 err_free_unregister:
937 drm_connector_unregister(connector);
938 err_free_encoder:
939 drm_encoder_cleanup(encoder);
940 err_free_connector:
941 drm_connector_cleanup(connector);
942 err_free:
943 kfree(sou);
944 return ret;
945 }
946
vmw_kms_sou_init_display(struct vmw_private * dev_priv)947 int vmw_kms_sou_init_display(struct vmw_private *dev_priv)
948 {
949 struct drm_device *dev = dev_priv->dev;
950 int i, ret;
951
952 /* Screen objects won't work if GMR's aren't available */
953 if (!dev_priv->has_gmr)
954 return -ENOSYS;
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_mode_config_reset(dev);
974
975 DRM_INFO("Screen Objects Display Unit initialized\n");
976
977 return 0;
978 }
979
do_bo_define_gmrfb(struct vmw_private * dev_priv,struct vmw_framebuffer * framebuffer)980 static int do_bo_define_gmrfb(struct vmw_private *dev_priv,
981 struct vmw_framebuffer *framebuffer)
982 {
983 struct vmw_buffer_object *buf =
984 container_of(framebuffer, struct vmw_framebuffer_bo,
985 base)->buffer;
986 int depth = framebuffer->base.format->depth;
987 struct {
988 uint32_t header;
989 SVGAFifoCmdDefineGMRFB body;
990 } *cmd;
991
992 /* Emulate RGBA support, contrary to svga_reg.h this is not
993 * supported by hosts. This is only a problem if we are reading
994 * this value later and expecting what we uploaded back.
995 */
996 if (depth == 32)
997 depth = 24;
998
999 cmd = VMW_FIFO_RESERVE(dev_priv, sizeof(*cmd));
1000 if (!cmd)
1001 return -ENOMEM;
1002
1003 cmd->header = SVGA_CMD_DEFINE_GMRFB;
1004 cmd->body.format.bitsPerPixel = framebuffer->base.format->cpp[0] * 8;
1005 cmd->body.format.colorDepth = depth;
1006 cmd->body.format.reserved = 0;
1007 cmd->body.bytesPerLine = framebuffer->base.pitches[0];
1008 /* Buffer is reserved in vram or GMR */
1009 vmw_bo_get_guest_ptr(&buf->base, &cmd->body.ptr);
1010 vmw_fifo_commit(dev_priv, sizeof(*cmd));
1011
1012 return 0;
1013 }
1014
1015 /**
1016 * vmw_sou_surface_fifo_commit - Callback to fill in and submit a
1017 * blit surface to screen command.
1018 *
1019 * @dirty: The closure structure.
1020 *
1021 * Fills in the missing fields in the command, and translates the cliprects
1022 * to match the destination bounding box encoded.
1023 */
vmw_sou_surface_fifo_commit(struct vmw_kms_dirty * dirty)1024 static void vmw_sou_surface_fifo_commit(struct vmw_kms_dirty *dirty)
1025 {
1026 struct vmw_kms_sou_surface_dirty *sdirty =
1027 container_of(dirty, typeof(*sdirty), base);
1028 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd;
1029 s32 trans_x = dirty->unit->crtc.x - sdirty->dst_x;
1030 s32 trans_y = dirty->unit->crtc.y - sdirty->dst_y;
1031 size_t region_size = dirty->num_hits * sizeof(SVGASignedRect);
1032 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1];
1033 int i;
1034
1035 if (!dirty->num_hits) {
1036 vmw_fifo_commit(dirty->dev_priv, 0);
1037 return;
1038 }
1039
1040 cmd->header.id = SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN;
1041 cmd->header.size = sizeof(cmd->body) + region_size;
1042
1043 /*
1044 * Use the destination bounding box to specify destination - and
1045 * source bounding regions.
1046 */
1047 cmd->body.destRect.left = sdirty->left;
1048 cmd->body.destRect.right = sdirty->right;
1049 cmd->body.destRect.top = sdirty->top;
1050 cmd->body.destRect.bottom = sdirty->bottom;
1051
1052 cmd->body.srcRect.left = sdirty->left + trans_x;
1053 cmd->body.srcRect.right = sdirty->right + trans_x;
1054 cmd->body.srcRect.top = sdirty->top + trans_y;
1055 cmd->body.srcRect.bottom = sdirty->bottom + trans_y;
1056
1057 cmd->body.srcImage.sid = sdirty->sid;
1058 cmd->body.destScreenId = dirty->unit->unit;
1059
1060 /* Blits are relative to the destination rect. Translate. */
1061 for (i = 0; i < dirty->num_hits; ++i, ++blit) {
1062 blit->left -= sdirty->left;
1063 blit->right -= sdirty->left;
1064 blit->top -= sdirty->top;
1065 blit->bottom -= sdirty->top;
1066 }
1067
1068 vmw_fifo_commit(dirty->dev_priv, region_size + sizeof(*cmd));
1069
1070 sdirty->left = sdirty->top = S32_MAX;
1071 sdirty->right = sdirty->bottom = S32_MIN;
1072 }
1073
1074 /**
1075 * vmw_sou_surface_clip - Callback to encode a blit surface to screen cliprect.
1076 *
1077 * @dirty: The closure structure
1078 *
1079 * Encodes a SVGASignedRect cliprect and updates the bounding box of the
1080 * BLIT_SURFACE_TO_SCREEN command.
1081 */
vmw_sou_surface_clip(struct vmw_kms_dirty * dirty)1082 static void vmw_sou_surface_clip(struct vmw_kms_dirty *dirty)
1083 {
1084 struct vmw_kms_sou_surface_dirty *sdirty =
1085 container_of(dirty, typeof(*sdirty), base);
1086 struct vmw_kms_sou_dirty_cmd *cmd = dirty->cmd;
1087 SVGASignedRect *blit = (SVGASignedRect *) &cmd[1];
1088
1089 /* Destination rect. */
1090 blit += dirty->num_hits;
1091 blit->left = dirty->unit_x1;
1092 blit->top = dirty->unit_y1;
1093 blit->right = dirty->unit_x2;
1094 blit->bottom = dirty->unit_y2;
1095
1096 /* Destination bounding box */
1097 sdirty->left = min_t(s32, sdirty->left, dirty->unit_x1);
1098 sdirty->top = min_t(s32, sdirty->top, dirty->unit_y1);
1099 sdirty->right = max_t(s32, sdirty->right, dirty->unit_x2);
1100 sdirty->bottom = max_t(s32, sdirty->bottom, dirty->unit_y2);
1101
1102 dirty->num_hits++;
1103 }
1104
1105 /**
1106 * vmw_kms_sou_do_surface_dirty - Dirty part of a surface backed framebuffer
1107 *
1108 * @dev_priv: Pointer to the device private structure.
1109 * @framebuffer: Pointer to the surface-buffer backed framebuffer.
1110 * @clips: Array of clip rects. Either @clips or @vclips must be NULL.
1111 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
1112 * be NULL.
1113 * @srf: Pointer to surface to blit from. If NULL, the surface attached
1114 * to @framebuffer will be used.
1115 * @dest_x: X coordinate offset to align @srf with framebuffer coordinates.
1116 * @dest_y: Y coordinate offset to align @srf with framebuffer coordinates.
1117 * @num_clips: Number of clip rects in @clips.
1118 * @inc: Increment to use when looping over @clips.
1119 * @out_fence: If non-NULL, will return a ref-counted pointer to a
1120 * struct vmw_fence_obj. The returned fence pointer may be NULL in which
1121 * case the device has already synchronized.
1122 * @crtc: If crtc is passed, perform surface dirty on that crtc only.
1123 *
1124 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
1125 * interrupted.
1126 */
vmw_kms_sou_do_surface_dirty(struct vmw_private * dev_priv,struct vmw_framebuffer * framebuffer,struct drm_clip_rect * clips,struct drm_vmw_rect * vclips,struct vmw_resource * srf,s32 dest_x,s32 dest_y,unsigned num_clips,int inc,struct vmw_fence_obj ** out_fence,struct drm_crtc * crtc)1127 int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv,
1128 struct vmw_framebuffer *framebuffer,
1129 struct drm_clip_rect *clips,
1130 struct drm_vmw_rect *vclips,
1131 struct vmw_resource *srf,
1132 s32 dest_x,
1133 s32 dest_y,
1134 unsigned num_clips, int inc,
1135 struct vmw_fence_obj **out_fence,
1136 struct drm_crtc *crtc)
1137 {
1138 struct vmw_framebuffer_surface *vfbs =
1139 container_of(framebuffer, typeof(*vfbs), base);
1140 struct vmw_kms_sou_surface_dirty sdirty;
1141 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
1142 int ret;
1143
1144 if (!srf)
1145 srf = &vfbs->surface->res;
1146
1147 ret = vmw_validation_add_resource(&val_ctx, srf, 0, VMW_RES_DIRTY_NONE,
1148 NULL, NULL);
1149 if (ret)
1150 return ret;
1151
1152 ret = vmw_validation_prepare(&val_ctx, &dev_priv->cmdbuf_mutex, true);
1153 if (ret)
1154 goto out_unref;
1155
1156 sdirty.base.fifo_commit = vmw_sou_surface_fifo_commit;
1157 sdirty.base.clip = vmw_sou_surface_clip;
1158 sdirty.base.dev_priv = dev_priv;
1159 sdirty.base.fifo_reserve_size = sizeof(struct vmw_kms_sou_dirty_cmd) +
1160 sizeof(SVGASignedRect) * num_clips;
1161 sdirty.base.crtc = crtc;
1162
1163 sdirty.sid = srf->id;
1164 sdirty.left = sdirty.top = S32_MAX;
1165 sdirty.right = sdirty.bottom = S32_MIN;
1166 sdirty.dst_x = dest_x;
1167 sdirty.dst_y = dest_y;
1168
1169 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
1170 dest_x, dest_y, num_clips, inc,
1171 &sdirty.base);
1172 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence,
1173 NULL);
1174
1175 return ret;
1176
1177 out_unref:
1178 vmw_validation_unref_lists(&val_ctx);
1179 return ret;
1180 }
1181
1182 /**
1183 * vmw_sou_bo_fifo_commit - Callback to submit a set of readback clips.
1184 *
1185 * @dirty: The closure structure.
1186 *
1187 * Commits a previously built command buffer of readback clips.
1188 */
vmw_sou_bo_fifo_commit(struct vmw_kms_dirty * dirty)1189 static void vmw_sou_bo_fifo_commit(struct vmw_kms_dirty *dirty)
1190 {
1191 if (!dirty->num_hits) {
1192 vmw_fifo_commit(dirty->dev_priv, 0);
1193 return;
1194 }
1195
1196 vmw_fifo_commit(dirty->dev_priv,
1197 sizeof(struct vmw_kms_sou_bo_blit) *
1198 dirty->num_hits);
1199 }
1200
1201 /**
1202 * vmw_sou_bo_clip - Callback to encode a readback cliprect.
1203 *
1204 * @dirty: The closure structure
1205 *
1206 * Encodes a BLIT_GMRFB_TO_SCREEN cliprect.
1207 */
vmw_sou_bo_clip(struct vmw_kms_dirty * dirty)1208 static void vmw_sou_bo_clip(struct vmw_kms_dirty *dirty)
1209 {
1210 struct vmw_kms_sou_bo_blit *blit = dirty->cmd;
1211
1212 blit += dirty->num_hits;
1213 blit->header = SVGA_CMD_BLIT_GMRFB_TO_SCREEN;
1214 blit->body.destScreenId = dirty->unit->unit;
1215 blit->body.srcOrigin.x = dirty->fb_x;
1216 blit->body.srcOrigin.y = dirty->fb_y;
1217 blit->body.destRect.left = dirty->unit_x1;
1218 blit->body.destRect.top = dirty->unit_y1;
1219 blit->body.destRect.right = dirty->unit_x2;
1220 blit->body.destRect.bottom = dirty->unit_y2;
1221 dirty->num_hits++;
1222 }
1223
1224 /**
1225 * vmw_kms_do_bo_dirty - Dirty part of a buffer-object backed framebuffer
1226 *
1227 * @dev_priv: Pointer to the device private structure.
1228 * @framebuffer: Pointer to the buffer-object backed framebuffer.
1229 * @clips: Array of clip rects.
1230 * @vclips: Alternate array of clip rects. Either @clips or @vclips must
1231 * be NULL.
1232 * @num_clips: Number of clip rects in @clips.
1233 * @increment: Increment to use when looping over @clips.
1234 * @interruptible: Whether to perform waits interruptible if possible.
1235 * @out_fence: If non-NULL, will return a ref-counted pointer to a
1236 * struct vmw_fence_obj. The returned fence pointer may be NULL in which
1237 * case the device has already synchronized.
1238 * @crtc: If crtc is passed, perform bo dirty on that crtc only.
1239 *
1240 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
1241 * interrupted.
1242 */
vmw_kms_sou_do_bo_dirty(struct vmw_private * dev_priv,struct vmw_framebuffer * framebuffer,struct drm_clip_rect * clips,struct drm_vmw_rect * vclips,unsigned num_clips,int increment,bool interruptible,struct vmw_fence_obj ** out_fence,struct drm_crtc * crtc)1243 int vmw_kms_sou_do_bo_dirty(struct vmw_private *dev_priv,
1244 struct vmw_framebuffer *framebuffer,
1245 struct drm_clip_rect *clips,
1246 struct drm_vmw_rect *vclips,
1247 unsigned num_clips, int increment,
1248 bool interruptible,
1249 struct vmw_fence_obj **out_fence,
1250 struct drm_crtc *crtc)
1251 {
1252 struct vmw_buffer_object *buf =
1253 container_of(framebuffer, struct vmw_framebuffer_bo,
1254 base)->buffer;
1255 struct vmw_kms_dirty dirty;
1256 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
1257 int ret;
1258
1259 ret = vmw_validation_add_bo(&val_ctx, buf, false, false);
1260 if (ret)
1261 return ret;
1262
1263 ret = vmw_validation_prepare(&val_ctx, NULL, interruptible);
1264 if (ret)
1265 goto out_unref;
1266
1267 ret = do_bo_define_gmrfb(dev_priv, framebuffer);
1268 if (unlikely(ret != 0))
1269 goto out_revert;
1270
1271 dirty.crtc = crtc;
1272 dirty.fifo_commit = vmw_sou_bo_fifo_commit;
1273 dirty.clip = vmw_sou_bo_clip;
1274 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_bo_blit) *
1275 num_clips;
1276 ret = vmw_kms_helper_dirty(dev_priv, framebuffer, clips, vclips,
1277 0, 0, num_clips, increment, &dirty);
1278 vmw_kms_helper_validation_finish(dev_priv, NULL, &val_ctx, out_fence,
1279 NULL);
1280
1281 return ret;
1282
1283 out_revert:
1284 vmw_validation_revert(&val_ctx);
1285 out_unref:
1286 vmw_validation_unref_lists(&val_ctx);
1287
1288 return ret;
1289 }
1290
1291
1292 /**
1293 * vmw_sou_readback_fifo_commit - Callback to submit a set of readback clips.
1294 *
1295 * @dirty: The closure structure.
1296 *
1297 * Commits a previously built command buffer of readback clips.
1298 */
vmw_sou_readback_fifo_commit(struct vmw_kms_dirty * dirty)1299 static void vmw_sou_readback_fifo_commit(struct vmw_kms_dirty *dirty)
1300 {
1301 if (!dirty->num_hits) {
1302 vmw_fifo_commit(dirty->dev_priv, 0);
1303 return;
1304 }
1305
1306 vmw_fifo_commit(dirty->dev_priv,
1307 sizeof(struct vmw_kms_sou_readback_blit) *
1308 dirty->num_hits);
1309 }
1310
1311 /**
1312 * vmw_sou_readback_clip - Callback to encode a readback cliprect.
1313 *
1314 * @dirty: The closure structure
1315 *
1316 * Encodes a BLIT_SCREEN_TO_GMRFB cliprect.
1317 */
vmw_sou_readback_clip(struct vmw_kms_dirty * dirty)1318 static void vmw_sou_readback_clip(struct vmw_kms_dirty *dirty)
1319 {
1320 struct vmw_kms_sou_readback_blit *blit = dirty->cmd;
1321
1322 blit += dirty->num_hits;
1323 blit->header = SVGA_CMD_BLIT_SCREEN_TO_GMRFB;
1324 blit->body.srcScreenId = dirty->unit->unit;
1325 blit->body.destOrigin.x = dirty->fb_x;
1326 blit->body.destOrigin.y = dirty->fb_y;
1327 blit->body.srcRect.left = dirty->unit_x1;
1328 blit->body.srcRect.top = dirty->unit_y1;
1329 blit->body.srcRect.right = dirty->unit_x2;
1330 blit->body.srcRect.bottom = dirty->unit_y2;
1331 dirty->num_hits++;
1332 }
1333
1334 /**
1335 * vmw_kms_sou_readback - Perform a readback from the screen object system to
1336 * a buffer-object backed framebuffer.
1337 *
1338 * @dev_priv: Pointer to the device private structure.
1339 * @file_priv: Pointer to a struct drm_file identifying the caller.
1340 * Must be set to NULL if @user_fence_rep is NULL.
1341 * @vfb: Pointer to the buffer-object backed framebuffer.
1342 * @user_fence_rep: User-space provided structure for fence information.
1343 * Must be set to non-NULL if @file_priv is non-NULL.
1344 * @vclips: Array of clip rects.
1345 * @num_clips: Number of clip rects in @vclips.
1346 * @crtc: If crtc is passed, readback on that crtc only.
1347 *
1348 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
1349 * interrupted.
1350 */
vmw_kms_sou_readback(struct vmw_private * dev_priv,struct drm_file * file_priv,struct vmw_framebuffer * vfb,struct drm_vmw_fence_rep __user * user_fence_rep,struct drm_vmw_rect * vclips,uint32_t num_clips,struct drm_crtc * crtc)1351 int vmw_kms_sou_readback(struct vmw_private *dev_priv,
1352 struct drm_file *file_priv,
1353 struct vmw_framebuffer *vfb,
1354 struct drm_vmw_fence_rep __user *user_fence_rep,
1355 struct drm_vmw_rect *vclips,
1356 uint32_t num_clips,
1357 struct drm_crtc *crtc)
1358 {
1359 struct vmw_buffer_object *buf =
1360 container_of(vfb, struct vmw_framebuffer_bo, base)->buffer;
1361 struct vmw_kms_dirty dirty;
1362 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
1363 int ret;
1364
1365 ret = vmw_validation_add_bo(&val_ctx, buf, false, false);
1366 if (ret)
1367 return ret;
1368
1369 ret = vmw_validation_prepare(&val_ctx, NULL, true);
1370 if (ret)
1371 goto out_unref;
1372
1373 ret = do_bo_define_gmrfb(dev_priv, vfb);
1374 if (unlikely(ret != 0))
1375 goto out_revert;
1376
1377 dirty.crtc = crtc;
1378 dirty.fifo_commit = vmw_sou_readback_fifo_commit;
1379 dirty.clip = vmw_sou_readback_clip;
1380 dirty.fifo_reserve_size = sizeof(struct vmw_kms_sou_readback_blit) *
1381 num_clips;
1382 ret = vmw_kms_helper_dirty(dev_priv, vfb, NULL, vclips,
1383 0, 0, num_clips, 1, &dirty);
1384 vmw_kms_helper_validation_finish(dev_priv, file_priv, &val_ctx, NULL,
1385 user_fence_rep);
1386
1387 return ret;
1388
1389 out_revert:
1390 vmw_validation_revert(&val_ctx);
1391 out_unref:
1392 vmw_validation_unref_lists(&val_ctx);
1393
1394 return ret;
1395 }
1396