1 // SPDX-License-Identifier: GPL-2.0 OR MIT
2 /**************************************************************************
3 *
4 * Copyright 2009-2015 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_rect.h>
34 #include <drm/drm_sysfs.h>
35 #include <drm/drm_vblank.h>
36
37 #include "vmwgfx_kms.h"
38
vmw_du_cleanup(struct vmw_display_unit * du)39 void vmw_du_cleanup(struct vmw_display_unit *du)
40 {
41 struct vmw_private *dev_priv = vmw_priv(du->primary.dev);
42 drm_plane_cleanup(&du->primary);
43 if (vmw_cmd_supported(dev_priv))
44 drm_plane_cleanup(&du->cursor);
45
46 drm_connector_unregister(&du->connector);
47 drm_crtc_cleanup(&du->crtc);
48 drm_encoder_cleanup(&du->encoder);
49 drm_connector_cleanup(&du->connector);
50 }
51
52 /*
53 * Display Unit Cursor functions
54 */
55
vmw_cursor_update_image(struct vmw_private * dev_priv,u32 * image,u32 width,u32 height,u32 hotspotX,u32 hotspotY)56 static int vmw_cursor_update_image(struct vmw_private *dev_priv,
57 u32 *image, u32 width, u32 height,
58 u32 hotspotX, u32 hotspotY)
59 {
60 struct {
61 u32 cmd;
62 SVGAFifoCmdDefineAlphaCursor cursor;
63 } *cmd;
64 u32 image_size = width * height * 4;
65 u32 cmd_size = sizeof(*cmd) + image_size;
66
67 if (!image)
68 return -EINVAL;
69
70 cmd = VMW_CMD_RESERVE(dev_priv, cmd_size);
71 if (unlikely(cmd == NULL))
72 return -ENOMEM;
73
74 memset(cmd, 0, sizeof(*cmd));
75
76 memcpy(&cmd[1], image, image_size);
77
78 cmd->cmd = SVGA_CMD_DEFINE_ALPHA_CURSOR;
79 cmd->cursor.id = 0;
80 cmd->cursor.width = width;
81 cmd->cursor.height = height;
82 cmd->cursor.hotspotX = hotspotX;
83 cmd->cursor.hotspotY = hotspotY;
84
85 vmw_cmd_commit_flush(dev_priv, cmd_size);
86
87 return 0;
88 }
89
vmw_cursor_update_bo(struct vmw_private * dev_priv,struct vmw_buffer_object * bo,u32 width,u32 height,u32 hotspotX,u32 hotspotY)90 static int vmw_cursor_update_bo(struct vmw_private *dev_priv,
91 struct vmw_buffer_object *bo,
92 u32 width, u32 height,
93 u32 hotspotX, u32 hotspotY)
94 {
95 struct ttm_bo_kmap_obj map;
96 unsigned long kmap_offset;
97 unsigned long kmap_num;
98 void *virtual;
99 bool dummy;
100 int ret;
101
102 kmap_offset = 0;
103 kmap_num = PFN_UP(width*height*4);
104
105 ret = ttm_bo_reserve(&bo->base, true, false, NULL);
106 if (unlikely(ret != 0)) {
107 DRM_ERROR("reserve failed\n");
108 return -EINVAL;
109 }
110
111 ret = ttm_bo_kmap(&bo->base, kmap_offset, kmap_num, &map);
112 if (unlikely(ret != 0))
113 goto err_unreserve;
114
115 virtual = ttm_kmap_obj_virtual(&map, &dummy);
116 ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
117 hotspotX, hotspotY);
118
119 ttm_bo_kunmap(&map);
120 err_unreserve:
121 ttm_bo_unreserve(&bo->base);
122
123 return ret;
124 }
125
126
vmw_cursor_update_position(struct vmw_private * dev_priv,bool show,int x,int y)127 static void vmw_cursor_update_position(struct vmw_private *dev_priv,
128 bool show, int x, int y)
129 {
130 uint32_t count;
131
132 spin_lock(&dev_priv->cursor_lock);
133 if (vmw_is_cursor_bypass3_enabled(dev_priv)) {
134 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_ON, show ? 1 : 0);
135 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_X, x);
136 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_Y, y);
137 count = vmw_fifo_mem_read(dev_priv, SVGA_FIFO_CURSOR_COUNT);
138 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_COUNT, ++count);
139 } else {
140 vmw_write(dev_priv, SVGA_REG_CURSOR_X, x);
141 vmw_write(dev_priv, SVGA_REG_CURSOR_Y, y);
142 vmw_write(dev_priv, SVGA_REG_CURSOR_ON, show ? 1 : 0);
143 }
144 spin_unlock(&dev_priv->cursor_lock);
145 }
146
147
vmw_kms_cursor_snoop(struct vmw_surface * srf,struct ttm_object_file * tfile,struct ttm_buffer_object * bo,SVGA3dCmdHeader * header)148 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
149 struct ttm_object_file *tfile,
150 struct ttm_buffer_object *bo,
151 SVGA3dCmdHeader *header)
152 {
153 struct ttm_bo_kmap_obj map;
154 unsigned long kmap_offset;
155 unsigned long kmap_num;
156 SVGA3dCopyBox *box;
157 unsigned box_count;
158 void *virtual;
159 bool dummy;
160 struct vmw_dma_cmd {
161 SVGA3dCmdHeader header;
162 SVGA3dCmdSurfaceDMA dma;
163 } *cmd;
164 int i, ret;
165
166 cmd = container_of(header, struct vmw_dma_cmd, header);
167
168 /* No snooper installed */
169 if (!srf->snooper.image)
170 return;
171
172 if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
173 DRM_ERROR("face and mipmap for cursors should never != 0\n");
174 return;
175 }
176
177 if (cmd->header.size < 64) {
178 DRM_ERROR("at least one full copy box must be given\n");
179 return;
180 }
181
182 box = (SVGA3dCopyBox *)&cmd[1];
183 box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
184 sizeof(SVGA3dCopyBox);
185
186 if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
187 box->x != 0 || box->y != 0 || box->z != 0 ||
188 box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
189 box->d != 1 || box_count != 1 ||
190 box->w > 64 || box->h > 64) {
191 /* TODO handle none page aligned offsets */
192 /* TODO handle more dst & src != 0 */
193 /* TODO handle more then one copy */
194 DRM_ERROR("Can't snoop dma request for cursor!\n");
195 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
196 box->srcx, box->srcy, box->srcz,
197 box->x, box->y, box->z,
198 box->w, box->h, box->d, box_count,
199 cmd->dma.guest.ptr.offset);
200 return;
201 }
202
203 kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
204 kmap_num = (64*64*4) >> PAGE_SHIFT;
205
206 ret = ttm_bo_reserve(bo, true, false, NULL);
207 if (unlikely(ret != 0)) {
208 DRM_ERROR("reserve failed\n");
209 return;
210 }
211
212 ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
213 if (unlikely(ret != 0))
214 goto err_unreserve;
215
216 virtual = ttm_kmap_obj_virtual(&map, &dummy);
217
218 if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
219 memcpy(srf->snooper.image, virtual, 64*64*4);
220 } else {
221 /* Image is unsigned pointer. */
222 for (i = 0; i < box->h; i++)
223 memcpy(srf->snooper.image + i * 64,
224 virtual + i * cmd->dma.guest.pitch,
225 box->w * 4);
226 }
227
228 srf->snooper.age++;
229
230 ttm_bo_kunmap(&map);
231 err_unreserve:
232 ttm_bo_unreserve(bo);
233 }
234
235 /**
236 * vmw_kms_legacy_hotspot_clear - Clear legacy hotspots
237 *
238 * @dev_priv: Pointer to the device private struct.
239 *
240 * Clears all legacy hotspots.
241 */
vmw_kms_legacy_hotspot_clear(struct vmw_private * dev_priv)242 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv)
243 {
244 struct drm_device *dev = &dev_priv->drm;
245 struct vmw_display_unit *du;
246 struct drm_crtc *crtc;
247
248 drm_modeset_lock_all(dev);
249 drm_for_each_crtc(crtc, dev) {
250 du = vmw_crtc_to_du(crtc);
251
252 du->hotspot_x = 0;
253 du->hotspot_y = 0;
254 }
255 drm_modeset_unlock_all(dev);
256 }
257
vmw_kms_cursor_post_execbuf(struct vmw_private * dev_priv)258 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
259 {
260 struct drm_device *dev = &dev_priv->drm;
261 struct vmw_display_unit *du;
262 struct drm_crtc *crtc;
263
264 mutex_lock(&dev->mode_config.mutex);
265
266 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
267 du = vmw_crtc_to_du(crtc);
268 if (!du->cursor_surface ||
269 du->cursor_age == du->cursor_surface->snooper.age)
270 continue;
271
272 du->cursor_age = du->cursor_surface->snooper.age;
273 vmw_cursor_update_image(dev_priv,
274 du->cursor_surface->snooper.image,
275 64, 64,
276 du->hotspot_x + du->core_hotspot_x,
277 du->hotspot_y + du->core_hotspot_y);
278 }
279
280 mutex_unlock(&dev->mode_config.mutex);
281 }
282
283
vmw_du_cursor_plane_destroy(struct drm_plane * plane)284 void vmw_du_cursor_plane_destroy(struct drm_plane *plane)
285 {
286 vmw_cursor_update_position(plane->dev->dev_private, false, 0, 0);
287
288 drm_plane_cleanup(plane);
289 }
290
291
vmw_du_primary_plane_destroy(struct drm_plane * plane)292 void vmw_du_primary_plane_destroy(struct drm_plane *plane)
293 {
294 drm_plane_cleanup(plane);
295
296 /* Planes are static in our case so we don't free it */
297 }
298
299
300 /**
301 * vmw_du_plane_unpin_surf - unpins resource associated with a framebuffer surface
302 *
303 * @vps: plane state associated with the display surface
304 * @unreference: true if we also want to unreference the display.
305 */
vmw_du_plane_unpin_surf(struct vmw_plane_state * vps,bool unreference)306 void vmw_du_plane_unpin_surf(struct vmw_plane_state *vps,
307 bool unreference)
308 {
309 if (vps->surf) {
310 if (vps->pinned) {
311 vmw_resource_unpin(&vps->surf->res);
312 vps->pinned--;
313 }
314
315 if (unreference) {
316 if (vps->pinned)
317 DRM_ERROR("Surface still pinned\n");
318 vmw_surface_unreference(&vps->surf);
319 }
320 }
321 }
322
323
324 /**
325 * vmw_du_plane_cleanup_fb - Unpins the cursor
326 *
327 * @plane: display plane
328 * @old_state: Contains the FB to clean up
329 *
330 * Unpins the framebuffer surface
331 *
332 * Returns 0 on success
333 */
334 void
vmw_du_plane_cleanup_fb(struct drm_plane * plane,struct drm_plane_state * old_state)335 vmw_du_plane_cleanup_fb(struct drm_plane *plane,
336 struct drm_plane_state *old_state)
337 {
338 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
339
340 vmw_du_plane_unpin_surf(vps, false);
341 }
342
343
344 /**
345 * vmw_du_cursor_plane_prepare_fb - Readies the cursor by referencing it
346 *
347 * @plane: display plane
348 * @new_state: info on the new plane state, including the FB
349 *
350 * Returns 0 on success
351 */
352 int
vmw_du_cursor_plane_prepare_fb(struct drm_plane * plane,struct drm_plane_state * new_state)353 vmw_du_cursor_plane_prepare_fb(struct drm_plane *plane,
354 struct drm_plane_state *new_state)
355 {
356 struct drm_framebuffer *fb = new_state->fb;
357 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
358
359
360 if (vps->surf)
361 vmw_surface_unreference(&vps->surf);
362
363 if (vps->bo)
364 vmw_bo_unreference(&vps->bo);
365
366 if (fb) {
367 if (vmw_framebuffer_to_vfb(fb)->bo) {
368 vps->bo = vmw_framebuffer_to_vfbd(fb)->buffer;
369 vmw_bo_reference(vps->bo);
370 } else {
371 vps->surf = vmw_framebuffer_to_vfbs(fb)->surface;
372 vmw_surface_reference(vps->surf);
373 }
374 }
375
376 return 0;
377 }
378
379
380 void
vmw_du_cursor_plane_atomic_update(struct drm_plane * plane,struct drm_atomic_state * state)381 vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
382 struct drm_atomic_state *state)
383 {
384 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
385 plane);
386 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
387 plane);
388 struct drm_crtc *crtc = new_state->crtc ?: old_state->crtc;
389 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
390 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
391 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
392 s32 hotspot_x, hotspot_y;
393 int ret = 0;
394
395
396 hotspot_x = du->hotspot_x;
397 hotspot_y = du->hotspot_y;
398
399 if (new_state->fb) {
400 hotspot_x += new_state->fb->hot_x;
401 hotspot_y += new_state->fb->hot_y;
402 }
403
404 du->cursor_surface = vps->surf;
405 du->cursor_bo = vps->bo;
406
407 if (vps->surf) {
408 du->cursor_age = du->cursor_surface->snooper.age;
409
410 ret = vmw_cursor_update_image(dev_priv,
411 vps->surf->snooper.image,
412 64, 64, hotspot_x,
413 hotspot_y);
414 } else if (vps->bo) {
415 ret = vmw_cursor_update_bo(dev_priv, vps->bo,
416 new_state->crtc_w,
417 new_state->crtc_h,
418 hotspot_x, hotspot_y);
419 } else {
420 vmw_cursor_update_position(dev_priv, false, 0, 0);
421 return;
422 }
423
424 if (!ret) {
425 du->cursor_x = new_state->crtc_x + du->set_gui_x;
426 du->cursor_y = new_state->crtc_y + du->set_gui_y;
427
428 vmw_cursor_update_position(dev_priv, true,
429 du->cursor_x + hotspot_x,
430 du->cursor_y + hotspot_y);
431
432 du->core_hotspot_x = hotspot_x - du->hotspot_x;
433 du->core_hotspot_y = hotspot_y - du->hotspot_y;
434 } else {
435 DRM_ERROR("Failed to update cursor image\n");
436 }
437 }
438
439
440 /**
441 * vmw_du_primary_plane_atomic_check - check if the new state is okay
442 *
443 * @plane: display plane
444 * @state: info on the new plane state, including the FB
445 *
446 * Check if the new state is settable given the current state. Other
447 * than what the atomic helper checks, we care about crtc fitting
448 * the FB and maintaining one active framebuffer.
449 *
450 * Returns 0 on success
451 */
vmw_du_primary_plane_atomic_check(struct drm_plane * plane,struct drm_atomic_state * state)452 int vmw_du_primary_plane_atomic_check(struct drm_plane *plane,
453 struct drm_atomic_state *state)
454 {
455 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
456 plane);
457 struct drm_crtc_state *crtc_state = NULL;
458 struct drm_framebuffer *new_fb = new_state->fb;
459 int ret;
460
461 if (new_state->crtc)
462 crtc_state = drm_atomic_get_new_crtc_state(state,
463 new_state->crtc);
464
465 ret = drm_atomic_helper_check_plane_state(new_state, crtc_state,
466 DRM_PLANE_HELPER_NO_SCALING,
467 DRM_PLANE_HELPER_NO_SCALING,
468 false, true);
469
470 if (!ret && new_fb) {
471 struct drm_crtc *crtc = new_state->crtc;
472 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
473
474 vmw_connector_state_to_vcs(du->connector.state);
475 }
476
477
478 return ret;
479 }
480
481
482 /**
483 * vmw_du_cursor_plane_atomic_check - check if the new state is okay
484 *
485 * @plane: cursor plane
486 * @state: info on the new plane state
487 *
488 * This is a chance to fail if the new cursor state does not fit
489 * our requirements.
490 *
491 * Returns 0 on success
492 */
vmw_du_cursor_plane_atomic_check(struct drm_plane * plane,struct drm_atomic_state * state)493 int vmw_du_cursor_plane_atomic_check(struct drm_plane *plane,
494 struct drm_atomic_state *state)
495 {
496 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
497 plane);
498 int ret = 0;
499 struct drm_crtc_state *crtc_state = NULL;
500 struct vmw_surface *surface = NULL;
501 struct drm_framebuffer *fb = new_state->fb;
502
503 if (new_state->crtc)
504 crtc_state = drm_atomic_get_new_crtc_state(new_state->state,
505 new_state->crtc);
506
507 ret = drm_atomic_helper_check_plane_state(new_state, crtc_state,
508 DRM_PLANE_HELPER_NO_SCALING,
509 DRM_PLANE_HELPER_NO_SCALING,
510 true, true);
511 if (ret)
512 return ret;
513
514 /* Turning off */
515 if (!fb)
516 return 0;
517
518 /* A lot of the code assumes this */
519 if (new_state->crtc_w != 64 || new_state->crtc_h != 64) {
520 DRM_ERROR("Invalid cursor dimensions (%d, %d)\n",
521 new_state->crtc_w, new_state->crtc_h);
522 ret = -EINVAL;
523 }
524
525 if (!vmw_framebuffer_to_vfb(fb)->bo)
526 surface = vmw_framebuffer_to_vfbs(fb)->surface;
527
528 if (surface && !surface->snooper.image) {
529 DRM_ERROR("surface not suitable for cursor\n");
530 ret = -EINVAL;
531 }
532
533 return ret;
534 }
535
536
vmw_du_crtc_atomic_check(struct drm_crtc * crtc,struct drm_atomic_state * state)537 int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
538 struct drm_atomic_state *state)
539 {
540 struct drm_crtc_state *new_state = drm_atomic_get_new_crtc_state(state,
541 crtc);
542 struct vmw_display_unit *du = vmw_crtc_to_du(new_state->crtc);
543 int connector_mask = drm_connector_mask(&du->connector);
544 bool has_primary = new_state->plane_mask &
545 drm_plane_mask(crtc->primary);
546
547 /* We always want to have an active plane with an active CRTC */
548 if (has_primary != new_state->enable)
549 return -EINVAL;
550
551
552 if (new_state->connector_mask != connector_mask &&
553 new_state->connector_mask != 0) {
554 DRM_ERROR("Invalid connectors configuration\n");
555 return -EINVAL;
556 }
557
558 /*
559 * Our virtual device does not have a dot clock, so use the logical
560 * clock value as the dot clock.
561 */
562 if (new_state->mode.crtc_clock == 0)
563 new_state->adjusted_mode.crtc_clock = new_state->mode.clock;
564
565 return 0;
566 }
567
568
vmw_du_crtc_atomic_begin(struct drm_crtc * crtc,struct drm_atomic_state * state)569 void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
570 struct drm_atomic_state *state)
571 {
572 }
573
574
vmw_du_crtc_atomic_flush(struct drm_crtc * crtc,struct drm_atomic_state * state)575 void vmw_du_crtc_atomic_flush(struct drm_crtc *crtc,
576 struct drm_atomic_state *state)
577 {
578 struct drm_pending_vblank_event *event = crtc->state->event;
579
580 if (event) {
581 crtc->state->event = NULL;
582
583 spin_lock_irq(&crtc->dev->event_lock);
584 drm_crtc_send_vblank_event(crtc, event);
585 spin_unlock_irq(&crtc->dev->event_lock);
586 }
587 }
588
589
590 /**
591 * vmw_du_crtc_duplicate_state - duplicate crtc state
592 * @crtc: DRM crtc
593 *
594 * Allocates and returns a copy of the crtc state (both common and
595 * vmw-specific) for the specified crtc.
596 *
597 * Returns: The newly allocated crtc state, or NULL on failure.
598 */
599 struct drm_crtc_state *
vmw_du_crtc_duplicate_state(struct drm_crtc * crtc)600 vmw_du_crtc_duplicate_state(struct drm_crtc *crtc)
601 {
602 struct drm_crtc_state *state;
603 struct vmw_crtc_state *vcs;
604
605 if (WARN_ON(!crtc->state))
606 return NULL;
607
608 vcs = kmemdup(crtc->state, sizeof(*vcs), GFP_KERNEL);
609
610 if (!vcs)
611 return NULL;
612
613 state = &vcs->base;
614
615 __drm_atomic_helper_crtc_duplicate_state(crtc, state);
616
617 return state;
618 }
619
620
621 /**
622 * vmw_du_crtc_reset - creates a blank vmw crtc state
623 * @crtc: DRM crtc
624 *
625 * Resets the atomic state for @crtc by freeing the state pointer (which
626 * might be NULL, e.g. at driver load time) and allocating a new empty state
627 * object.
628 */
vmw_du_crtc_reset(struct drm_crtc * crtc)629 void vmw_du_crtc_reset(struct drm_crtc *crtc)
630 {
631 struct vmw_crtc_state *vcs;
632
633
634 if (crtc->state) {
635 __drm_atomic_helper_crtc_destroy_state(crtc->state);
636
637 kfree(vmw_crtc_state_to_vcs(crtc->state));
638 }
639
640 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
641
642 if (!vcs) {
643 DRM_ERROR("Cannot allocate vmw_crtc_state\n");
644 return;
645 }
646
647 __drm_atomic_helper_crtc_reset(crtc, &vcs->base);
648 }
649
650
651 /**
652 * vmw_du_crtc_destroy_state - destroy crtc state
653 * @crtc: DRM crtc
654 * @state: state object to destroy
655 *
656 * Destroys the crtc state (both common and vmw-specific) for the
657 * specified plane.
658 */
659 void
vmw_du_crtc_destroy_state(struct drm_crtc * crtc,struct drm_crtc_state * state)660 vmw_du_crtc_destroy_state(struct drm_crtc *crtc,
661 struct drm_crtc_state *state)
662 {
663 drm_atomic_helper_crtc_destroy_state(crtc, state);
664 }
665
666
667 /**
668 * vmw_du_plane_duplicate_state - duplicate plane state
669 * @plane: drm plane
670 *
671 * Allocates and returns a copy of the plane state (both common and
672 * vmw-specific) for the specified plane.
673 *
674 * Returns: The newly allocated plane state, or NULL on failure.
675 */
676 struct drm_plane_state *
vmw_du_plane_duplicate_state(struct drm_plane * plane)677 vmw_du_plane_duplicate_state(struct drm_plane *plane)
678 {
679 struct drm_plane_state *state;
680 struct vmw_plane_state *vps;
681
682 vps = kmemdup(plane->state, sizeof(*vps), GFP_KERNEL);
683
684 if (!vps)
685 return NULL;
686
687 vps->pinned = 0;
688 vps->cpp = 0;
689
690 /* Each ref counted resource needs to be acquired again */
691 if (vps->surf)
692 (void) vmw_surface_reference(vps->surf);
693
694 if (vps->bo)
695 (void) vmw_bo_reference(vps->bo);
696
697 state = &vps->base;
698
699 __drm_atomic_helper_plane_duplicate_state(plane, state);
700
701 return state;
702 }
703
704
705 /**
706 * vmw_du_plane_reset - creates a blank vmw plane state
707 * @plane: drm plane
708 *
709 * Resets the atomic state for @plane by freeing the state pointer (which might
710 * be NULL, e.g. at driver load time) and allocating a new empty state object.
711 */
vmw_du_plane_reset(struct drm_plane * plane)712 void vmw_du_plane_reset(struct drm_plane *plane)
713 {
714 struct vmw_plane_state *vps;
715
716
717 if (plane->state)
718 vmw_du_plane_destroy_state(plane, plane->state);
719
720 vps = kzalloc(sizeof(*vps), GFP_KERNEL);
721
722 if (!vps) {
723 DRM_ERROR("Cannot allocate vmw_plane_state\n");
724 return;
725 }
726
727 __drm_atomic_helper_plane_reset(plane, &vps->base);
728 }
729
730
731 /**
732 * vmw_du_plane_destroy_state - destroy plane state
733 * @plane: DRM plane
734 * @state: state object to destroy
735 *
736 * Destroys the plane state (both common and vmw-specific) for the
737 * specified plane.
738 */
739 void
vmw_du_plane_destroy_state(struct drm_plane * plane,struct drm_plane_state * state)740 vmw_du_plane_destroy_state(struct drm_plane *plane,
741 struct drm_plane_state *state)
742 {
743 struct vmw_plane_state *vps = vmw_plane_state_to_vps(state);
744
745
746 /* Should have been freed by cleanup_fb */
747 if (vps->surf)
748 vmw_surface_unreference(&vps->surf);
749
750 if (vps->bo)
751 vmw_bo_unreference(&vps->bo);
752
753 drm_atomic_helper_plane_destroy_state(plane, state);
754 }
755
756
757 /**
758 * vmw_du_connector_duplicate_state - duplicate connector state
759 * @connector: DRM connector
760 *
761 * Allocates and returns a copy of the connector state (both common and
762 * vmw-specific) for the specified connector.
763 *
764 * Returns: The newly allocated connector state, or NULL on failure.
765 */
766 struct drm_connector_state *
vmw_du_connector_duplicate_state(struct drm_connector * connector)767 vmw_du_connector_duplicate_state(struct drm_connector *connector)
768 {
769 struct drm_connector_state *state;
770 struct vmw_connector_state *vcs;
771
772 if (WARN_ON(!connector->state))
773 return NULL;
774
775 vcs = kmemdup(connector->state, sizeof(*vcs), GFP_KERNEL);
776
777 if (!vcs)
778 return NULL;
779
780 state = &vcs->base;
781
782 __drm_atomic_helper_connector_duplicate_state(connector, state);
783
784 return state;
785 }
786
787
788 /**
789 * vmw_du_connector_reset - creates a blank vmw connector state
790 * @connector: DRM connector
791 *
792 * Resets the atomic state for @connector by freeing the state pointer (which
793 * might be NULL, e.g. at driver load time) and allocating a new empty state
794 * object.
795 */
vmw_du_connector_reset(struct drm_connector * connector)796 void vmw_du_connector_reset(struct drm_connector *connector)
797 {
798 struct vmw_connector_state *vcs;
799
800
801 if (connector->state) {
802 __drm_atomic_helper_connector_destroy_state(connector->state);
803
804 kfree(vmw_connector_state_to_vcs(connector->state));
805 }
806
807 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
808
809 if (!vcs) {
810 DRM_ERROR("Cannot allocate vmw_connector_state\n");
811 return;
812 }
813
814 __drm_atomic_helper_connector_reset(connector, &vcs->base);
815 }
816
817
818 /**
819 * vmw_du_connector_destroy_state - destroy connector state
820 * @connector: DRM connector
821 * @state: state object to destroy
822 *
823 * Destroys the connector state (both common and vmw-specific) for the
824 * specified plane.
825 */
826 void
vmw_du_connector_destroy_state(struct drm_connector * connector,struct drm_connector_state * state)827 vmw_du_connector_destroy_state(struct drm_connector *connector,
828 struct drm_connector_state *state)
829 {
830 drm_atomic_helper_connector_destroy_state(connector, state);
831 }
832 /*
833 * Generic framebuffer code
834 */
835
836 /*
837 * Surface framebuffer code
838 */
839
vmw_framebuffer_surface_destroy(struct drm_framebuffer * framebuffer)840 static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
841 {
842 struct vmw_framebuffer_surface *vfbs =
843 vmw_framebuffer_to_vfbs(framebuffer);
844
845 drm_framebuffer_cleanup(framebuffer);
846 vmw_surface_unreference(&vfbs->surface);
847 if (vfbs->base.user_obj)
848 ttm_base_object_unref(&vfbs->base.user_obj);
849
850 kfree(vfbs);
851 }
852
853 /**
854 * vmw_kms_readback - Perform a readback from the screen system to
855 * a buffer-object backed framebuffer.
856 *
857 * @dev_priv: Pointer to the device private structure.
858 * @file_priv: Pointer to a struct drm_file identifying the caller.
859 * Must be set to NULL if @user_fence_rep is NULL.
860 * @vfb: Pointer to the buffer-object backed framebuffer.
861 * @user_fence_rep: User-space provided structure for fence information.
862 * Must be set to non-NULL if @file_priv is non-NULL.
863 * @vclips: Array of clip rects.
864 * @num_clips: Number of clip rects in @vclips.
865 *
866 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
867 * interrupted.
868 */
vmw_kms_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)869 int vmw_kms_readback(struct vmw_private *dev_priv,
870 struct drm_file *file_priv,
871 struct vmw_framebuffer *vfb,
872 struct drm_vmw_fence_rep __user *user_fence_rep,
873 struct drm_vmw_rect *vclips,
874 uint32_t num_clips)
875 {
876 switch (dev_priv->active_display_unit) {
877 case vmw_du_screen_object:
878 return vmw_kms_sou_readback(dev_priv, file_priv, vfb,
879 user_fence_rep, vclips, num_clips,
880 NULL);
881 case vmw_du_screen_target:
882 return vmw_kms_stdu_dma(dev_priv, file_priv, vfb,
883 user_fence_rep, NULL, vclips, num_clips,
884 1, false, true, NULL);
885 default:
886 WARN_ONCE(true,
887 "Readback called with invalid display system.\n");
888 }
889
890 return -ENOSYS;
891 }
892
893
894 static const struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
895 .destroy = vmw_framebuffer_surface_destroy,
896 .dirty = drm_atomic_helper_dirtyfb,
897 };
898
vmw_kms_new_framebuffer_surface(struct vmw_private * dev_priv,struct vmw_surface * surface,struct vmw_framebuffer ** out,const struct drm_mode_fb_cmd2 * mode_cmd,bool is_bo_proxy)899 static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
900 struct vmw_surface *surface,
901 struct vmw_framebuffer **out,
902 const struct drm_mode_fb_cmd2
903 *mode_cmd,
904 bool is_bo_proxy)
905
906 {
907 struct drm_device *dev = &dev_priv->drm;
908 struct vmw_framebuffer_surface *vfbs;
909 enum SVGA3dSurfaceFormat format;
910 int ret;
911
912 /* 3D is only supported on HWv8 and newer hosts */
913 if (dev_priv->active_display_unit == vmw_du_legacy)
914 return -ENOSYS;
915
916 /*
917 * Sanity checks.
918 */
919
920 if (!drm_any_plane_has_format(&dev_priv->drm,
921 mode_cmd->pixel_format,
922 mode_cmd->modifier[0])) {
923 drm_dbg(&dev_priv->drm,
924 "unsupported pixel format %p4cc / modifier 0x%llx\n",
925 &mode_cmd->pixel_format, mode_cmd->modifier[0]);
926 return -EINVAL;
927 }
928
929 /* Surface must be marked as a scanout. */
930 if (unlikely(!surface->metadata.scanout))
931 return -EINVAL;
932
933 if (unlikely(surface->metadata.mip_levels[0] != 1 ||
934 surface->metadata.num_sizes != 1 ||
935 surface->metadata.base_size.width < mode_cmd->width ||
936 surface->metadata.base_size.height < mode_cmd->height ||
937 surface->metadata.base_size.depth != 1)) {
938 DRM_ERROR("Incompatible surface dimensions "
939 "for requested mode.\n");
940 return -EINVAL;
941 }
942
943 switch (mode_cmd->pixel_format) {
944 case DRM_FORMAT_ARGB8888:
945 format = SVGA3D_A8R8G8B8;
946 break;
947 case DRM_FORMAT_XRGB8888:
948 format = SVGA3D_X8R8G8B8;
949 break;
950 case DRM_FORMAT_RGB565:
951 format = SVGA3D_R5G6B5;
952 break;
953 case DRM_FORMAT_XRGB1555:
954 format = SVGA3D_A1R5G5B5;
955 break;
956 default:
957 DRM_ERROR("Invalid pixel format: %p4cc\n",
958 &mode_cmd->pixel_format);
959 return -EINVAL;
960 }
961
962 /*
963 * For DX, surface format validation is done when surface->scanout
964 * is set.
965 */
966 if (!has_sm4_context(dev_priv) && format != surface->metadata.format) {
967 DRM_ERROR("Invalid surface format for requested mode.\n");
968 return -EINVAL;
969 }
970
971 vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
972 if (!vfbs) {
973 ret = -ENOMEM;
974 goto out_err1;
975 }
976
977 drm_helper_mode_fill_fb_struct(dev, &vfbs->base.base, mode_cmd);
978 vfbs->surface = vmw_surface_reference(surface);
979 vfbs->base.user_handle = mode_cmd->handles[0];
980 vfbs->is_bo_proxy = is_bo_proxy;
981
982 *out = &vfbs->base;
983
984 ret = drm_framebuffer_init(dev, &vfbs->base.base,
985 &vmw_framebuffer_surface_funcs);
986 if (ret)
987 goto out_err2;
988
989 return 0;
990
991 out_err2:
992 vmw_surface_unreference(&surface);
993 kfree(vfbs);
994 out_err1:
995 return ret;
996 }
997
998 /*
999 * Buffer-object framebuffer code
1000 */
1001
vmw_framebuffer_bo_destroy(struct drm_framebuffer * framebuffer)1002 static void vmw_framebuffer_bo_destroy(struct drm_framebuffer *framebuffer)
1003 {
1004 struct vmw_framebuffer_bo *vfbd =
1005 vmw_framebuffer_to_vfbd(framebuffer);
1006
1007 drm_framebuffer_cleanup(framebuffer);
1008 vmw_bo_unreference(&vfbd->buffer);
1009 if (vfbd->base.user_obj)
1010 ttm_base_object_unref(&vfbd->base.user_obj);
1011
1012 kfree(vfbd);
1013 }
1014
vmw_framebuffer_bo_dirty(struct drm_framebuffer * framebuffer,struct drm_file * file_priv,unsigned int flags,unsigned int color,struct drm_clip_rect * clips,unsigned int num_clips)1015 static int vmw_framebuffer_bo_dirty(struct drm_framebuffer *framebuffer,
1016 struct drm_file *file_priv,
1017 unsigned int flags, unsigned int color,
1018 struct drm_clip_rect *clips,
1019 unsigned int num_clips)
1020 {
1021 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
1022 struct vmw_framebuffer_bo *vfbd =
1023 vmw_framebuffer_to_vfbd(framebuffer);
1024 struct drm_clip_rect norect;
1025 int ret, increment = 1;
1026
1027 drm_modeset_lock_all(&dev_priv->drm);
1028
1029 if (!num_clips) {
1030 num_clips = 1;
1031 clips = &norect;
1032 norect.x1 = norect.y1 = 0;
1033 norect.x2 = framebuffer->width;
1034 norect.y2 = framebuffer->height;
1035 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
1036 num_clips /= 2;
1037 increment = 2;
1038 }
1039
1040 switch (dev_priv->active_display_unit) {
1041 case vmw_du_legacy:
1042 ret = vmw_kms_ldu_do_bo_dirty(dev_priv, &vfbd->base, 0, 0,
1043 clips, num_clips, increment);
1044 break;
1045 default:
1046 ret = -EINVAL;
1047 WARN_ONCE(true, "Dirty called with invalid display system.\n");
1048 break;
1049 }
1050
1051 vmw_cmd_flush(dev_priv, false);
1052
1053 drm_modeset_unlock_all(&dev_priv->drm);
1054
1055 return ret;
1056 }
1057
vmw_framebuffer_bo_dirty_ext(struct drm_framebuffer * framebuffer,struct drm_file * file_priv,unsigned int flags,unsigned int color,struct drm_clip_rect * clips,unsigned int num_clips)1058 static int vmw_framebuffer_bo_dirty_ext(struct drm_framebuffer *framebuffer,
1059 struct drm_file *file_priv,
1060 unsigned int flags, unsigned int color,
1061 struct drm_clip_rect *clips,
1062 unsigned int num_clips)
1063 {
1064 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
1065
1066 if (dev_priv->active_display_unit == vmw_du_legacy &&
1067 vmw_cmd_supported(dev_priv))
1068 return vmw_framebuffer_bo_dirty(framebuffer, file_priv, flags,
1069 color, clips, num_clips);
1070
1071 return drm_atomic_helper_dirtyfb(framebuffer, file_priv, flags, color,
1072 clips, num_clips);
1073 }
1074
1075 static const struct drm_framebuffer_funcs vmw_framebuffer_bo_funcs = {
1076 .destroy = vmw_framebuffer_bo_destroy,
1077 .dirty = vmw_framebuffer_bo_dirty_ext,
1078 };
1079
1080 /*
1081 * Pin the bofer in a location suitable for access by the
1082 * display system.
1083 */
vmw_framebuffer_pin(struct vmw_framebuffer * vfb)1084 static int vmw_framebuffer_pin(struct vmw_framebuffer *vfb)
1085 {
1086 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1087 struct vmw_buffer_object *buf;
1088 struct ttm_placement *placement;
1089 int ret;
1090
1091 buf = vfb->bo ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
1092 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
1093
1094 if (!buf)
1095 return 0;
1096
1097 switch (dev_priv->active_display_unit) {
1098 case vmw_du_legacy:
1099 vmw_overlay_pause_all(dev_priv);
1100 ret = vmw_bo_pin_in_start_of_vram(dev_priv, buf, false);
1101 vmw_overlay_resume_all(dev_priv);
1102 break;
1103 case vmw_du_screen_object:
1104 case vmw_du_screen_target:
1105 if (vfb->bo) {
1106 if (dev_priv->capabilities & SVGA_CAP_3D) {
1107 /*
1108 * Use surface DMA to get content to
1109 * sreen target surface.
1110 */
1111 placement = &vmw_vram_gmr_placement;
1112 } else {
1113 /* Use CPU blit. */
1114 placement = &vmw_sys_placement;
1115 }
1116 } else {
1117 /* Use surface / image update */
1118 placement = &vmw_mob_placement;
1119 }
1120
1121 return vmw_bo_pin_in_placement(dev_priv, buf, placement, false);
1122 default:
1123 return -EINVAL;
1124 }
1125
1126 return ret;
1127 }
1128
vmw_framebuffer_unpin(struct vmw_framebuffer * vfb)1129 static int vmw_framebuffer_unpin(struct vmw_framebuffer *vfb)
1130 {
1131 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1132 struct vmw_buffer_object *buf;
1133
1134 buf = vfb->bo ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
1135 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
1136
1137 if (WARN_ON(!buf))
1138 return 0;
1139
1140 return vmw_bo_unpin(dev_priv, buf, false);
1141 }
1142
1143 /**
1144 * vmw_create_bo_proxy - create a proxy surface for the buffer object
1145 *
1146 * @dev: DRM device
1147 * @mode_cmd: parameters for the new surface
1148 * @bo_mob: MOB backing the buffer object
1149 * @srf_out: newly created surface
1150 *
1151 * When the content FB is a buffer object, we create a surface as a proxy to the
1152 * same buffer. This way we can do a surface copy rather than a surface DMA.
1153 * This is a more efficient approach
1154 *
1155 * RETURNS:
1156 * 0 on success, error code otherwise
1157 */
vmw_create_bo_proxy(struct drm_device * dev,const struct drm_mode_fb_cmd2 * mode_cmd,struct vmw_buffer_object * bo_mob,struct vmw_surface ** srf_out)1158 static int vmw_create_bo_proxy(struct drm_device *dev,
1159 const struct drm_mode_fb_cmd2 *mode_cmd,
1160 struct vmw_buffer_object *bo_mob,
1161 struct vmw_surface **srf_out)
1162 {
1163 struct vmw_surface_metadata metadata = {0};
1164 uint32_t format;
1165 struct vmw_resource *res;
1166 unsigned int bytes_pp;
1167 int ret;
1168
1169 switch (mode_cmd->pixel_format) {
1170 case DRM_FORMAT_ARGB8888:
1171 case DRM_FORMAT_XRGB8888:
1172 format = SVGA3D_X8R8G8B8;
1173 bytes_pp = 4;
1174 break;
1175
1176 case DRM_FORMAT_RGB565:
1177 case DRM_FORMAT_XRGB1555:
1178 format = SVGA3D_R5G6B5;
1179 bytes_pp = 2;
1180 break;
1181
1182 case 8:
1183 format = SVGA3D_P8;
1184 bytes_pp = 1;
1185 break;
1186
1187 default:
1188 DRM_ERROR("Invalid framebuffer format %p4cc\n",
1189 &mode_cmd->pixel_format);
1190 return -EINVAL;
1191 }
1192
1193 metadata.format = format;
1194 metadata.mip_levels[0] = 1;
1195 metadata.num_sizes = 1;
1196 metadata.base_size.width = mode_cmd->pitches[0] / bytes_pp;
1197 metadata.base_size.height = mode_cmd->height;
1198 metadata.base_size.depth = 1;
1199 metadata.scanout = true;
1200
1201 ret = vmw_gb_surface_define(vmw_priv(dev), 0, &metadata, srf_out);
1202 if (ret) {
1203 DRM_ERROR("Failed to allocate proxy content buffer\n");
1204 return ret;
1205 }
1206
1207 res = &(*srf_out)->res;
1208
1209 /* Reserve and switch the backing mob. */
1210 mutex_lock(&res->dev_priv->cmdbuf_mutex);
1211 (void) vmw_resource_reserve(res, false, true);
1212 vmw_bo_unreference(&res->backup);
1213 res->backup = vmw_bo_reference(bo_mob);
1214 res->backup_offset = 0;
1215 vmw_resource_unreserve(res, false, false, false, NULL, 0);
1216 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
1217
1218 return 0;
1219 }
1220
1221
1222
vmw_kms_new_framebuffer_bo(struct vmw_private * dev_priv,struct vmw_buffer_object * bo,struct vmw_framebuffer ** out,const struct drm_mode_fb_cmd2 * mode_cmd)1223 static int vmw_kms_new_framebuffer_bo(struct vmw_private *dev_priv,
1224 struct vmw_buffer_object *bo,
1225 struct vmw_framebuffer **out,
1226 const struct drm_mode_fb_cmd2
1227 *mode_cmd)
1228
1229 {
1230 struct drm_device *dev = &dev_priv->drm;
1231 struct vmw_framebuffer_bo *vfbd;
1232 unsigned int requested_size;
1233 int ret;
1234
1235 requested_size = mode_cmd->height * mode_cmd->pitches[0];
1236 if (unlikely(requested_size > bo->base.base.size)) {
1237 DRM_ERROR("Screen buffer object size is too small "
1238 "for requested mode.\n");
1239 return -EINVAL;
1240 }
1241
1242 if (!drm_any_plane_has_format(&dev_priv->drm,
1243 mode_cmd->pixel_format,
1244 mode_cmd->modifier[0])) {
1245 drm_dbg(&dev_priv->drm,
1246 "unsupported pixel format %p4cc / modifier 0x%llx\n",
1247 &mode_cmd->pixel_format, mode_cmd->modifier[0]);
1248 return -EINVAL;
1249 }
1250
1251 vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
1252 if (!vfbd) {
1253 ret = -ENOMEM;
1254 goto out_err1;
1255 }
1256
1257 drm_helper_mode_fill_fb_struct(dev, &vfbd->base.base, mode_cmd);
1258 vfbd->base.bo = true;
1259 vfbd->buffer = vmw_bo_reference(bo);
1260 vfbd->base.user_handle = mode_cmd->handles[0];
1261 *out = &vfbd->base;
1262
1263 ret = drm_framebuffer_init(dev, &vfbd->base.base,
1264 &vmw_framebuffer_bo_funcs);
1265 if (ret)
1266 goto out_err2;
1267
1268 return 0;
1269
1270 out_err2:
1271 vmw_bo_unreference(&bo);
1272 kfree(vfbd);
1273 out_err1:
1274 return ret;
1275 }
1276
1277
1278 /**
1279 * vmw_kms_srf_ok - check if a surface can be created
1280 *
1281 * @dev_priv: Pointer to device private struct.
1282 * @width: requested width
1283 * @height: requested height
1284 *
1285 * Surfaces need to be less than texture size
1286 */
1287 static bool
vmw_kms_srf_ok(struct vmw_private * dev_priv,uint32_t width,uint32_t height)1288 vmw_kms_srf_ok(struct vmw_private *dev_priv, uint32_t width, uint32_t height)
1289 {
1290 if (width > dev_priv->texture_max_width ||
1291 height > dev_priv->texture_max_height)
1292 return false;
1293
1294 return true;
1295 }
1296
1297 /**
1298 * vmw_kms_new_framebuffer - Create a new framebuffer.
1299 *
1300 * @dev_priv: Pointer to device private struct.
1301 * @bo: Pointer to buffer object to wrap the kms framebuffer around.
1302 * Either @bo or @surface must be NULL.
1303 * @surface: Pointer to a surface to wrap the kms framebuffer around.
1304 * Either @bo or @surface must be NULL.
1305 * @only_2d: No presents will occur to this buffer object based framebuffer.
1306 * This helps the code to do some important optimizations.
1307 * @mode_cmd: Frame-buffer metadata.
1308 */
1309 struct vmw_framebuffer *
vmw_kms_new_framebuffer(struct vmw_private * dev_priv,struct vmw_buffer_object * bo,struct vmw_surface * surface,bool only_2d,const struct drm_mode_fb_cmd2 * mode_cmd)1310 vmw_kms_new_framebuffer(struct vmw_private *dev_priv,
1311 struct vmw_buffer_object *bo,
1312 struct vmw_surface *surface,
1313 bool only_2d,
1314 const struct drm_mode_fb_cmd2 *mode_cmd)
1315 {
1316 struct vmw_framebuffer *vfb = NULL;
1317 bool is_bo_proxy = false;
1318 int ret;
1319
1320 /*
1321 * We cannot use the SurfaceDMA command in an non-accelerated VM,
1322 * therefore, wrap the buffer object in a surface so we can use the
1323 * SurfaceCopy command.
1324 */
1325 if (vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height) &&
1326 bo && only_2d &&
1327 mode_cmd->width > 64 && /* Don't create a proxy for cursor */
1328 dev_priv->active_display_unit == vmw_du_screen_target) {
1329 ret = vmw_create_bo_proxy(&dev_priv->drm, mode_cmd,
1330 bo, &surface);
1331 if (ret)
1332 return ERR_PTR(ret);
1333
1334 is_bo_proxy = true;
1335 }
1336
1337 /* Create the new framebuffer depending one what we have */
1338 if (surface) {
1339 ret = vmw_kms_new_framebuffer_surface(dev_priv, surface, &vfb,
1340 mode_cmd,
1341 is_bo_proxy);
1342 /*
1343 * vmw_create_bo_proxy() adds a reference that is no longer
1344 * needed
1345 */
1346 if (is_bo_proxy)
1347 vmw_surface_unreference(&surface);
1348 } else if (bo) {
1349 ret = vmw_kms_new_framebuffer_bo(dev_priv, bo, &vfb,
1350 mode_cmd);
1351 } else {
1352 BUG();
1353 }
1354
1355 if (ret)
1356 return ERR_PTR(ret);
1357
1358 vfb->pin = vmw_framebuffer_pin;
1359 vfb->unpin = vmw_framebuffer_unpin;
1360
1361 return vfb;
1362 }
1363
1364 /*
1365 * Generic Kernel modesetting functions
1366 */
1367
vmw_kms_fb_create(struct drm_device * dev,struct drm_file * file_priv,const struct drm_mode_fb_cmd2 * mode_cmd)1368 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
1369 struct drm_file *file_priv,
1370 const struct drm_mode_fb_cmd2 *mode_cmd)
1371 {
1372 struct vmw_private *dev_priv = vmw_priv(dev);
1373 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1374 struct vmw_framebuffer *vfb = NULL;
1375 struct vmw_surface *surface = NULL;
1376 struct vmw_buffer_object *bo = NULL;
1377 struct ttm_base_object *user_obj;
1378 int ret;
1379
1380 /*
1381 * Take a reference on the user object of the resource
1382 * backing the kms fb. This ensures that user-space handle
1383 * lookups on that resource will always work as long as
1384 * it's registered with a kms framebuffer. This is important,
1385 * since vmw_execbuf_process identifies resources in the
1386 * command stream using user-space handles.
1387 */
1388
1389 user_obj = ttm_base_object_lookup(tfile, mode_cmd->handles[0]);
1390 if (unlikely(user_obj == NULL)) {
1391 DRM_ERROR("Could not locate requested kms frame buffer.\n");
1392 return ERR_PTR(-ENOENT);
1393 }
1394
1395 /**
1396 * End conditioned code.
1397 */
1398
1399 /* returns either a bo or surface */
1400 ret = vmw_user_lookup_handle(dev_priv, tfile,
1401 mode_cmd->handles[0],
1402 &surface, &bo);
1403 if (ret) {
1404 DRM_ERROR("Invalid buffer object handle %u (0x%x).\n",
1405 mode_cmd->handles[0], mode_cmd->handles[0]);
1406 goto err_out;
1407 }
1408
1409
1410 if (!bo &&
1411 !vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height)) {
1412 DRM_ERROR("Surface size cannot exceed %dx%d\n",
1413 dev_priv->texture_max_width,
1414 dev_priv->texture_max_height);
1415 goto err_out;
1416 }
1417
1418
1419 vfb = vmw_kms_new_framebuffer(dev_priv, bo, surface,
1420 !(dev_priv->capabilities & SVGA_CAP_3D),
1421 mode_cmd);
1422 if (IS_ERR(vfb)) {
1423 ret = PTR_ERR(vfb);
1424 goto err_out;
1425 }
1426
1427 err_out:
1428 /* vmw_user_lookup_handle takes one ref so does new_fb */
1429 if (bo)
1430 vmw_bo_unreference(&bo);
1431 if (surface)
1432 vmw_surface_unreference(&surface);
1433
1434 if (ret) {
1435 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1436 ttm_base_object_unref(&user_obj);
1437 return ERR_PTR(ret);
1438 } else
1439 vfb->user_obj = user_obj;
1440
1441 return &vfb->base;
1442 }
1443
1444 /**
1445 * vmw_kms_check_display_memory - Validates display memory required for a
1446 * topology
1447 * @dev: DRM device
1448 * @num_rects: number of drm_rect in rects
1449 * @rects: array of drm_rect representing the topology to validate indexed by
1450 * crtc index.
1451 *
1452 * Returns:
1453 * 0 on success otherwise negative error code
1454 */
vmw_kms_check_display_memory(struct drm_device * dev,uint32_t num_rects,struct drm_rect * rects)1455 static int vmw_kms_check_display_memory(struct drm_device *dev,
1456 uint32_t num_rects,
1457 struct drm_rect *rects)
1458 {
1459 struct vmw_private *dev_priv = vmw_priv(dev);
1460 struct drm_rect bounding_box = {0};
1461 u64 total_pixels = 0, pixel_mem, bb_mem;
1462 int i;
1463
1464 for (i = 0; i < num_rects; i++) {
1465 /*
1466 * For STDU only individual screen (screen target) is limited by
1467 * SCREENTARGET_MAX_WIDTH/HEIGHT registers.
1468 */
1469 if (dev_priv->active_display_unit == vmw_du_screen_target &&
1470 (drm_rect_width(&rects[i]) > dev_priv->stdu_max_width ||
1471 drm_rect_height(&rects[i]) > dev_priv->stdu_max_height)) {
1472 VMW_DEBUG_KMS("Screen size not supported.\n");
1473 return -EINVAL;
1474 }
1475
1476 /* Bounding box upper left is at (0,0). */
1477 if (rects[i].x2 > bounding_box.x2)
1478 bounding_box.x2 = rects[i].x2;
1479
1480 if (rects[i].y2 > bounding_box.y2)
1481 bounding_box.y2 = rects[i].y2;
1482
1483 total_pixels += (u64) drm_rect_width(&rects[i]) *
1484 (u64) drm_rect_height(&rects[i]);
1485 }
1486
1487 /* Virtual svga device primary limits are always in 32-bpp. */
1488 pixel_mem = total_pixels * 4;
1489
1490 /*
1491 * For HV10 and below prim_bb_mem is vram size. When
1492 * SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM is not present vram size is
1493 * limit on primary bounding box
1494 */
1495 if (pixel_mem > dev_priv->max_primary_mem) {
1496 VMW_DEBUG_KMS("Combined output size too large.\n");
1497 return -EINVAL;
1498 }
1499
1500 /* SVGA_CAP_NO_BB_RESTRICTION is available for STDU only. */
1501 if (dev_priv->active_display_unit != vmw_du_screen_target ||
1502 !(dev_priv->capabilities & SVGA_CAP_NO_BB_RESTRICTION)) {
1503 bb_mem = (u64) bounding_box.x2 * bounding_box.y2 * 4;
1504
1505 if (bb_mem > dev_priv->max_primary_mem) {
1506 VMW_DEBUG_KMS("Topology is beyond supported limits.\n");
1507 return -EINVAL;
1508 }
1509 }
1510
1511 return 0;
1512 }
1513
1514 /**
1515 * vmw_crtc_state_and_lock - Return new or current crtc state with locked
1516 * crtc mutex
1517 * @state: The atomic state pointer containing the new atomic state
1518 * @crtc: The crtc
1519 *
1520 * This function returns the new crtc state if it's part of the state update.
1521 * Otherwise returns the current crtc state. It also makes sure that the
1522 * crtc mutex is locked.
1523 *
1524 * Returns: A valid crtc state pointer or NULL. It may also return a
1525 * pointer error, in particular -EDEADLK if locking needs to be rerun.
1526 */
1527 static struct drm_crtc_state *
vmw_crtc_state_and_lock(struct drm_atomic_state * state,struct drm_crtc * crtc)1528 vmw_crtc_state_and_lock(struct drm_atomic_state *state, struct drm_crtc *crtc)
1529 {
1530 struct drm_crtc_state *crtc_state;
1531
1532 crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
1533 if (crtc_state) {
1534 lockdep_assert_held(&crtc->mutex.mutex.base);
1535 } else {
1536 int ret = drm_modeset_lock(&crtc->mutex, state->acquire_ctx);
1537
1538 if (ret != 0 && ret != -EALREADY)
1539 return ERR_PTR(ret);
1540
1541 crtc_state = crtc->state;
1542 }
1543
1544 return crtc_state;
1545 }
1546
1547 /**
1548 * vmw_kms_check_implicit - Verify that all implicit display units scan out
1549 * from the same fb after the new state is committed.
1550 * @dev: The drm_device.
1551 * @state: The new state to be checked.
1552 *
1553 * Returns:
1554 * Zero on success,
1555 * -EINVAL on invalid state,
1556 * -EDEADLK if modeset locking needs to be rerun.
1557 */
vmw_kms_check_implicit(struct drm_device * dev,struct drm_atomic_state * state)1558 static int vmw_kms_check_implicit(struct drm_device *dev,
1559 struct drm_atomic_state *state)
1560 {
1561 struct drm_framebuffer *implicit_fb = NULL;
1562 struct drm_crtc *crtc;
1563 struct drm_crtc_state *crtc_state;
1564 struct drm_plane_state *plane_state;
1565
1566 drm_for_each_crtc(crtc, dev) {
1567 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1568
1569 if (!du->is_implicit)
1570 continue;
1571
1572 crtc_state = vmw_crtc_state_and_lock(state, crtc);
1573 if (IS_ERR(crtc_state))
1574 return PTR_ERR(crtc_state);
1575
1576 if (!crtc_state || !crtc_state->enable)
1577 continue;
1578
1579 /*
1580 * Can't move primary planes across crtcs, so this is OK.
1581 * It also means we don't need to take the plane mutex.
1582 */
1583 plane_state = du->primary.state;
1584 if (plane_state->crtc != crtc)
1585 continue;
1586
1587 if (!implicit_fb)
1588 implicit_fb = plane_state->fb;
1589 else if (implicit_fb != plane_state->fb)
1590 return -EINVAL;
1591 }
1592
1593 return 0;
1594 }
1595
1596 /**
1597 * vmw_kms_check_topology - Validates topology in drm_atomic_state
1598 * @dev: DRM device
1599 * @state: the driver state object
1600 *
1601 * Returns:
1602 * 0 on success otherwise negative error code
1603 */
vmw_kms_check_topology(struct drm_device * dev,struct drm_atomic_state * state)1604 static int vmw_kms_check_topology(struct drm_device *dev,
1605 struct drm_atomic_state *state)
1606 {
1607 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
1608 struct drm_rect *rects;
1609 struct drm_crtc *crtc;
1610 uint32_t i;
1611 int ret = 0;
1612
1613 rects = kcalloc(dev->mode_config.num_crtc, sizeof(struct drm_rect),
1614 GFP_KERNEL);
1615 if (!rects)
1616 return -ENOMEM;
1617
1618 drm_for_each_crtc(crtc, dev) {
1619 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1620 struct drm_crtc_state *crtc_state;
1621
1622 i = drm_crtc_index(crtc);
1623
1624 crtc_state = vmw_crtc_state_and_lock(state, crtc);
1625 if (IS_ERR(crtc_state)) {
1626 ret = PTR_ERR(crtc_state);
1627 goto clean;
1628 }
1629
1630 if (!crtc_state)
1631 continue;
1632
1633 if (crtc_state->enable) {
1634 rects[i].x1 = du->gui_x;
1635 rects[i].y1 = du->gui_y;
1636 rects[i].x2 = du->gui_x + crtc_state->mode.hdisplay;
1637 rects[i].y2 = du->gui_y + crtc_state->mode.vdisplay;
1638 } else {
1639 rects[i].x1 = 0;
1640 rects[i].y1 = 0;
1641 rects[i].x2 = 0;
1642 rects[i].y2 = 0;
1643 }
1644 }
1645
1646 /* Determine change to topology due to new atomic state */
1647 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
1648 new_crtc_state, i) {
1649 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1650 struct drm_connector *connector;
1651 struct drm_connector_state *conn_state;
1652 struct vmw_connector_state *vmw_conn_state;
1653
1654 if (!du->pref_active && new_crtc_state->enable) {
1655 VMW_DEBUG_KMS("Enabling a disabled display unit\n");
1656 ret = -EINVAL;
1657 goto clean;
1658 }
1659
1660 /*
1661 * For vmwgfx each crtc has only one connector attached and it
1662 * is not changed so don't really need to check the
1663 * crtc->connector_mask and iterate over it.
1664 */
1665 connector = &du->connector;
1666 conn_state = drm_atomic_get_connector_state(state, connector);
1667 if (IS_ERR(conn_state)) {
1668 ret = PTR_ERR(conn_state);
1669 goto clean;
1670 }
1671
1672 vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
1673 vmw_conn_state->gui_x = du->gui_x;
1674 vmw_conn_state->gui_y = du->gui_y;
1675 }
1676
1677 ret = vmw_kms_check_display_memory(dev, dev->mode_config.num_crtc,
1678 rects);
1679
1680 clean:
1681 kfree(rects);
1682 return ret;
1683 }
1684
1685 /**
1686 * vmw_kms_atomic_check_modeset- validate state object for modeset changes
1687 *
1688 * @dev: DRM device
1689 * @state: the driver state object
1690 *
1691 * This is a simple wrapper around drm_atomic_helper_check_modeset() for
1692 * us to assign a value to mode->crtc_clock so that
1693 * drm_calc_timestamping_constants() won't throw an error message
1694 *
1695 * Returns:
1696 * Zero for success or -errno
1697 */
1698 static int
vmw_kms_atomic_check_modeset(struct drm_device * dev,struct drm_atomic_state * state)1699 vmw_kms_atomic_check_modeset(struct drm_device *dev,
1700 struct drm_atomic_state *state)
1701 {
1702 struct drm_crtc *crtc;
1703 struct drm_crtc_state *crtc_state;
1704 bool need_modeset = false;
1705 int i, ret;
1706
1707 ret = drm_atomic_helper_check(dev, state);
1708 if (ret)
1709 return ret;
1710
1711 ret = vmw_kms_check_implicit(dev, state);
1712 if (ret) {
1713 VMW_DEBUG_KMS("Invalid implicit state\n");
1714 return ret;
1715 }
1716
1717 for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
1718 if (drm_atomic_crtc_needs_modeset(crtc_state))
1719 need_modeset = true;
1720 }
1721
1722 if (need_modeset)
1723 return vmw_kms_check_topology(dev, state);
1724
1725 return ret;
1726 }
1727
1728 static const struct drm_mode_config_funcs vmw_kms_funcs = {
1729 .fb_create = vmw_kms_fb_create,
1730 .atomic_check = vmw_kms_atomic_check_modeset,
1731 .atomic_commit = drm_atomic_helper_commit,
1732 };
1733
vmw_kms_generic_present(struct vmw_private * dev_priv,struct drm_file * file_priv,struct vmw_framebuffer * vfb,struct vmw_surface * surface,uint32_t sid,int32_t destX,int32_t destY,struct drm_vmw_rect * clips,uint32_t num_clips)1734 static int vmw_kms_generic_present(struct vmw_private *dev_priv,
1735 struct drm_file *file_priv,
1736 struct vmw_framebuffer *vfb,
1737 struct vmw_surface *surface,
1738 uint32_t sid,
1739 int32_t destX, int32_t destY,
1740 struct drm_vmw_rect *clips,
1741 uint32_t num_clips)
1742 {
1743 return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips,
1744 &surface->res, destX, destY,
1745 num_clips, 1, NULL, NULL);
1746 }
1747
1748
vmw_kms_present(struct vmw_private * dev_priv,struct drm_file * file_priv,struct vmw_framebuffer * vfb,struct vmw_surface * surface,uint32_t sid,int32_t destX,int32_t destY,struct drm_vmw_rect * clips,uint32_t num_clips)1749 int vmw_kms_present(struct vmw_private *dev_priv,
1750 struct drm_file *file_priv,
1751 struct vmw_framebuffer *vfb,
1752 struct vmw_surface *surface,
1753 uint32_t sid,
1754 int32_t destX, int32_t destY,
1755 struct drm_vmw_rect *clips,
1756 uint32_t num_clips)
1757 {
1758 int ret;
1759
1760 switch (dev_priv->active_display_unit) {
1761 case vmw_du_screen_target:
1762 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips,
1763 &surface->res, destX, destY,
1764 num_clips, 1, NULL, NULL);
1765 break;
1766 case vmw_du_screen_object:
1767 ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface,
1768 sid, destX, destY, clips,
1769 num_clips);
1770 break;
1771 default:
1772 WARN_ONCE(true,
1773 "Present called with invalid display system.\n");
1774 ret = -ENOSYS;
1775 break;
1776 }
1777 if (ret)
1778 return ret;
1779
1780 vmw_cmd_flush(dev_priv, false);
1781
1782 return 0;
1783 }
1784
1785 static void
vmw_kms_create_hotplug_mode_update_property(struct vmw_private * dev_priv)1786 vmw_kms_create_hotplug_mode_update_property(struct vmw_private *dev_priv)
1787 {
1788 if (dev_priv->hotplug_mode_update_property)
1789 return;
1790
1791 dev_priv->hotplug_mode_update_property =
1792 drm_property_create_range(&dev_priv->drm,
1793 DRM_MODE_PROP_IMMUTABLE,
1794 "hotplug_mode_update", 0, 1);
1795 }
1796
vmw_kms_init(struct vmw_private * dev_priv)1797 int vmw_kms_init(struct vmw_private *dev_priv)
1798 {
1799 struct drm_device *dev = &dev_priv->drm;
1800 int ret;
1801 static const char *display_unit_names[] = {
1802 "Invalid",
1803 "Legacy",
1804 "Screen Object",
1805 "Screen Target",
1806 "Invalid (max)"
1807 };
1808
1809 drm_mode_config_init(dev);
1810 dev->mode_config.funcs = &vmw_kms_funcs;
1811 dev->mode_config.min_width = 1;
1812 dev->mode_config.min_height = 1;
1813 dev->mode_config.max_width = dev_priv->texture_max_width;
1814 dev->mode_config.max_height = dev_priv->texture_max_height;
1815
1816 drm_mode_create_suggested_offset_properties(dev);
1817 vmw_kms_create_hotplug_mode_update_property(dev_priv);
1818
1819 ret = vmw_kms_stdu_init_display(dev_priv);
1820 if (ret) {
1821 ret = vmw_kms_sou_init_display(dev_priv);
1822 if (ret) /* Fallback */
1823 ret = vmw_kms_ldu_init_display(dev_priv);
1824 }
1825 BUILD_BUG_ON(ARRAY_SIZE(display_unit_names) != (vmw_du_max + 1));
1826 drm_info(&dev_priv->drm, "%s display unit initialized\n",
1827 display_unit_names[dev_priv->active_display_unit]);
1828
1829 return ret;
1830 }
1831
vmw_kms_close(struct vmw_private * dev_priv)1832 int vmw_kms_close(struct vmw_private *dev_priv)
1833 {
1834 int ret = 0;
1835
1836 /*
1837 * Docs says we should take the lock before calling this function
1838 * but since it destroys encoders and our destructor calls
1839 * drm_encoder_cleanup which takes the lock we deadlock.
1840 */
1841 drm_mode_config_cleanup(&dev_priv->drm);
1842 if (dev_priv->active_display_unit == vmw_du_legacy)
1843 ret = vmw_kms_ldu_close_display(dev_priv);
1844
1845 return ret;
1846 }
1847
vmw_kms_cursor_bypass_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)1848 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1849 struct drm_file *file_priv)
1850 {
1851 struct drm_vmw_cursor_bypass_arg *arg = data;
1852 struct vmw_display_unit *du;
1853 struct drm_crtc *crtc;
1854 int ret = 0;
1855
1856
1857 mutex_lock(&dev->mode_config.mutex);
1858 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1859
1860 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1861 du = vmw_crtc_to_du(crtc);
1862 du->hotspot_x = arg->xhot;
1863 du->hotspot_y = arg->yhot;
1864 }
1865
1866 mutex_unlock(&dev->mode_config.mutex);
1867 return 0;
1868 }
1869
1870 crtc = drm_crtc_find(dev, file_priv, arg->crtc_id);
1871 if (!crtc) {
1872 ret = -ENOENT;
1873 goto out;
1874 }
1875
1876 du = vmw_crtc_to_du(crtc);
1877
1878 du->hotspot_x = arg->xhot;
1879 du->hotspot_y = arg->yhot;
1880
1881 out:
1882 mutex_unlock(&dev->mode_config.mutex);
1883
1884 return ret;
1885 }
1886
vmw_kms_write_svga(struct vmw_private * vmw_priv,unsigned width,unsigned height,unsigned pitch,unsigned bpp,unsigned depth)1887 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1888 unsigned width, unsigned height, unsigned pitch,
1889 unsigned bpp, unsigned depth)
1890 {
1891 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1892 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1893 else if (vmw_fifo_have_pitchlock(vmw_priv))
1894 vmw_fifo_mem_write(vmw_priv, SVGA_FIFO_PITCHLOCK, pitch);
1895 vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1896 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1897 if ((vmw_priv->capabilities & SVGA_CAP_8BIT_EMULATION) != 0)
1898 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1899
1900 if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1901 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1902 depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1903 return -EINVAL;
1904 }
1905
1906 return 0;
1907 }
1908
vmw_kms_validate_mode_vram(struct vmw_private * dev_priv,uint32_t pitch,uint32_t height)1909 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1910 uint32_t pitch,
1911 uint32_t height)
1912 {
1913 return ((u64) pitch * (u64) height) < (u64)
1914 ((dev_priv->active_display_unit == vmw_du_screen_target) ?
1915 dev_priv->max_primary_mem : dev_priv->vram_size);
1916 }
1917
1918
1919 /*
1920 * Function called by DRM code called with vbl_lock held.
1921 */
vmw_get_vblank_counter(struct drm_crtc * crtc)1922 u32 vmw_get_vblank_counter(struct drm_crtc *crtc)
1923 {
1924 return 0;
1925 }
1926
1927 /*
1928 * Function called by DRM code called with vbl_lock held.
1929 */
vmw_enable_vblank(struct drm_crtc * crtc)1930 int vmw_enable_vblank(struct drm_crtc *crtc)
1931 {
1932 return -EINVAL;
1933 }
1934
1935 /*
1936 * Function called by DRM code called with vbl_lock held.
1937 */
vmw_disable_vblank(struct drm_crtc * crtc)1938 void vmw_disable_vblank(struct drm_crtc *crtc)
1939 {
1940 }
1941
1942 /**
1943 * vmw_du_update_layout - Update the display unit with topology from resolution
1944 * plugin and generate DRM uevent
1945 * @dev_priv: device private
1946 * @num_rects: number of drm_rect in rects
1947 * @rects: toplogy to update
1948 */
vmw_du_update_layout(struct vmw_private * dev_priv,unsigned int num_rects,struct drm_rect * rects)1949 static int vmw_du_update_layout(struct vmw_private *dev_priv,
1950 unsigned int num_rects, struct drm_rect *rects)
1951 {
1952 struct drm_device *dev = &dev_priv->drm;
1953 struct vmw_display_unit *du;
1954 struct drm_connector *con;
1955 struct drm_connector_list_iter conn_iter;
1956 struct drm_modeset_acquire_ctx ctx;
1957 struct drm_crtc *crtc;
1958 int ret;
1959
1960 /* Currently gui_x/y is protected with the crtc mutex */
1961 mutex_lock(&dev->mode_config.mutex);
1962 drm_modeset_acquire_init(&ctx, 0);
1963 retry:
1964 drm_for_each_crtc(crtc, dev) {
1965 ret = drm_modeset_lock(&crtc->mutex, &ctx);
1966 if (ret < 0) {
1967 if (ret == -EDEADLK) {
1968 drm_modeset_backoff(&ctx);
1969 goto retry;
1970 }
1971 goto out_fini;
1972 }
1973 }
1974
1975 drm_connector_list_iter_begin(dev, &conn_iter);
1976 drm_for_each_connector_iter(con, &conn_iter) {
1977 du = vmw_connector_to_du(con);
1978 if (num_rects > du->unit) {
1979 du->pref_width = drm_rect_width(&rects[du->unit]);
1980 du->pref_height = drm_rect_height(&rects[du->unit]);
1981 du->pref_active = true;
1982 du->gui_x = rects[du->unit].x1;
1983 du->gui_y = rects[du->unit].y1;
1984 } else {
1985 du->pref_width = 800;
1986 du->pref_height = 600;
1987 du->pref_active = false;
1988 du->gui_x = 0;
1989 du->gui_y = 0;
1990 }
1991 }
1992 drm_connector_list_iter_end(&conn_iter);
1993
1994 list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1995 du = vmw_connector_to_du(con);
1996 if (num_rects > du->unit) {
1997 drm_object_property_set_value
1998 (&con->base, dev->mode_config.suggested_x_property,
1999 du->gui_x);
2000 drm_object_property_set_value
2001 (&con->base, dev->mode_config.suggested_y_property,
2002 du->gui_y);
2003 } else {
2004 drm_object_property_set_value
2005 (&con->base, dev->mode_config.suggested_x_property,
2006 0);
2007 drm_object_property_set_value
2008 (&con->base, dev->mode_config.suggested_y_property,
2009 0);
2010 }
2011 con->status = vmw_du_connector_detect(con, true);
2012 }
2013
2014 drm_sysfs_hotplug_event(dev);
2015 out_fini:
2016 drm_modeset_drop_locks(&ctx);
2017 drm_modeset_acquire_fini(&ctx);
2018 mutex_unlock(&dev->mode_config.mutex);
2019
2020 return 0;
2021 }
2022
vmw_du_crtc_gamma_set(struct drm_crtc * crtc,u16 * r,u16 * g,u16 * b,uint32_t size,struct drm_modeset_acquire_ctx * ctx)2023 int vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
2024 u16 *r, u16 *g, u16 *b,
2025 uint32_t size,
2026 struct drm_modeset_acquire_ctx *ctx)
2027 {
2028 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
2029 int i;
2030
2031 for (i = 0; i < size; i++) {
2032 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
2033 r[i], g[i], b[i]);
2034 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
2035 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
2036 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
2037 }
2038
2039 return 0;
2040 }
2041
vmw_du_connector_dpms(struct drm_connector * connector,int mode)2042 int vmw_du_connector_dpms(struct drm_connector *connector, int mode)
2043 {
2044 return 0;
2045 }
2046
2047 enum drm_connector_status
vmw_du_connector_detect(struct drm_connector * connector,bool force)2048 vmw_du_connector_detect(struct drm_connector *connector, bool force)
2049 {
2050 uint32_t num_displays;
2051 struct drm_device *dev = connector->dev;
2052 struct vmw_private *dev_priv = vmw_priv(dev);
2053 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2054
2055 num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
2056
2057 return ((vmw_connector_to_du(connector)->unit < num_displays &&
2058 du->pref_active) ?
2059 connector_status_connected : connector_status_disconnected);
2060 }
2061
2062 static struct drm_display_mode vmw_kms_connector_builtin[] = {
2063 /* 640x480@60Hz */
2064 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
2065 752, 800, 0, 480, 489, 492, 525, 0,
2066 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
2067 /* 800x600@60Hz */
2068 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
2069 968, 1056, 0, 600, 601, 605, 628, 0,
2070 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2071 /* 1024x768@60Hz */
2072 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
2073 1184, 1344, 0, 768, 771, 777, 806, 0,
2074 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
2075 /* 1152x864@75Hz */
2076 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
2077 1344, 1600, 0, 864, 865, 868, 900, 0,
2078 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2079 /* 1280x720@60Hz */
2080 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74500, 1280, 1344,
2081 1472, 1664, 0, 720, 723, 728, 748, 0,
2082 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2083 /* 1280x768@60Hz */
2084 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
2085 1472, 1664, 0, 768, 771, 778, 798, 0,
2086 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2087 /* 1280x800@60Hz */
2088 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
2089 1480, 1680, 0, 800, 803, 809, 831, 0,
2090 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
2091 /* 1280x960@60Hz */
2092 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
2093 1488, 1800, 0, 960, 961, 964, 1000, 0,
2094 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2095 /* 1280x1024@60Hz */
2096 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
2097 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
2098 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2099 /* 1360x768@60Hz */
2100 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
2101 1536, 1792, 0, 768, 771, 777, 795, 0,
2102 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2103 /* 1440x1050@60Hz */
2104 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
2105 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
2106 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2107 /* 1440x900@60Hz */
2108 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
2109 1672, 1904, 0, 900, 903, 909, 934, 0,
2110 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2111 /* 1600x1200@60Hz */
2112 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
2113 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
2114 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2115 /* 1680x1050@60Hz */
2116 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
2117 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
2118 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2119 /* 1792x1344@60Hz */
2120 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
2121 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
2122 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2123 /* 1853x1392@60Hz */
2124 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
2125 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
2126 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2127 /* 1920x1080@60Hz */
2128 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 173000, 1920, 2048,
2129 2248, 2576, 0, 1080, 1083, 1088, 1120, 0,
2130 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2131 /* 1920x1200@60Hz */
2132 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
2133 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
2134 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2135 /* 1920x1440@60Hz */
2136 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
2137 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
2138 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2139 /* 2560x1440@60Hz */
2140 { DRM_MODE("2560x1440", DRM_MODE_TYPE_DRIVER, 241500, 2560, 2608,
2141 2640, 2720, 0, 1440, 1443, 1448, 1481, 0,
2142 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
2143 /* 2560x1600@60Hz */
2144 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
2145 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
2146 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2147 /* 2880x1800@60Hz */
2148 { DRM_MODE("2880x1800", DRM_MODE_TYPE_DRIVER, 337500, 2880, 2928,
2149 2960, 3040, 0, 1800, 1803, 1809, 1852, 0,
2150 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
2151 /* 3840x2160@60Hz */
2152 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 533000, 3840, 3888,
2153 3920, 4000, 0, 2160, 2163, 2168, 2222, 0,
2154 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
2155 /* 3840x2400@60Hz */
2156 { DRM_MODE("3840x2400", DRM_MODE_TYPE_DRIVER, 592250, 3840, 3888,
2157 3920, 4000, 0, 2400, 2403, 2409, 2469, 0,
2158 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
2159 /* Terminate */
2160 { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
2161 };
2162
2163 /**
2164 * vmw_guess_mode_timing - Provide fake timings for a
2165 * 60Hz vrefresh mode.
2166 *
2167 * @mode: Pointer to a struct drm_display_mode with hdisplay and vdisplay
2168 * members filled in.
2169 */
vmw_guess_mode_timing(struct drm_display_mode * mode)2170 void vmw_guess_mode_timing(struct drm_display_mode *mode)
2171 {
2172 mode->hsync_start = mode->hdisplay + 50;
2173 mode->hsync_end = mode->hsync_start + 50;
2174 mode->htotal = mode->hsync_end + 50;
2175
2176 mode->vsync_start = mode->vdisplay + 50;
2177 mode->vsync_end = mode->vsync_start + 50;
2178 mode->vtotal = mode->vsync_end + 50;
2179
2180 mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
2181 }
2182
2183
vmw_du_connector_fill_modes(struct drm_connector * connector,uint32_t max_width,uint32_t max_height)2184 int vmw_du_connector_fill_modes(struct drm_connector *connector,
2185 uint32_t max_width, uint32_t max_height)
2186 {
2187 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2188 struct drm_device *dev = connector->dev;
2189 struct vmw_private *dev_priv = vmw_priv(dev);
2190 struct drm_display_mode *mode = NULL;
2191 struct drm_display_mode *bmode;
2192 struct drm_display_mode prefmode = { DRM_MODE("preferred",
2193 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
2194 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2195 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
2196 };
2197 int i;
2198 u32 assumed_bpp = 4;
2199
2200 if (dev_priv->assume_16bpp)
2201 assumed_bpp = 2;
2202
2203 max_width = min(max_width, dev_priv->texture_max_width);
2204 max_height = min(max_height, dev_priv->texture_max_height);
2205
2206 /*
2207 * For STDU extra limit for a mode on SVGA_REG_SCREENTARGET_MAX_WIDTH/
2208 * HEIGHT registers.
2209 */
2210 if (dev_priv->active_display_unit == vmw_du_screen_target) {
2211 max_width = min(max_width, dev_priv->stdu_max_width);
2212 max_height = min(max_height, dev_priv->stdu_max_height);
2213 }
2214
2215 /* Add preferred mode */
2216 mode = drm_mode_duplicate(dev, &prefmode);
2217 if (!mode)
2218 return 0;
2219 mode->hdisplay = du->pref_width;
2220 mode->vdisplay = du->pref_height;
2221 vmw_guess_mode_timing(mode);
2222 drm_mode_set_name(mode);
2223
2224 if (vmw_kms_validate_mode_vram(dev_priv,
2225 mode->hdisplay * assumed_bpp,
2226 mode->vdisplay)) {
2227 drm_mode_probed_add(connector, mode);
2228 } else {
2229 drm_mode_destroy(dev, mode);
2230 mode = NULL;
2231 }
2232
2233 if (du->pref_mode) {
2234 list_del_init(&du->pref_mode->head);
2235 drm_mode_destroy(dev, du->pref_mode);
2236 }
2237
2238 /* mode might be null here, this is intended */
2239 du->pref_mode = mode;
2240
2241 for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
2242 bmode = &vmw_kms_connector_builtin[i];
2243 if (bmode->hdisplay > max_width ||
2244 bmode->vdisplay > max_height)
2245 continue;
2246
2247 if (!vmw_kms_validate_mode_vram(dev_priv,
2248 bmode->hdisplay * assumed_bpp,
2249 bmode->vdisplay))
2250 continue;
2251
2252 mode = drm_mode_duplicate(dev, bmode);
2253 if (!mode)
2254 return 0;
2255
2256 drm_mode_probed_add(connector, mode);
2257 }
2258
2259 drm_connector_list_update(connector);
2260 /* Move the prefered mode first, help apps pick the right mode. */
2261 drm_mode_sort(&connector->modes);
2262
2263 return 1;
2264 }
2265
2266 /**
2267 * vmw_kms_update_layout_ioctl - Handler for DRM_VMW_UPDATE_LAYOUT ioctl
2268 * @dev: drm device for the ioctl
2269 * @data: data pointer for the ioctl
2270 * @file_priv: drm file for the ioctl call
2271 *
2272 * Update preferred topology of display unit as per ioctl request. The topology
2273 * is expressed as array of drm_vmw_rect.
2274 * e.g.
2275 * [0 0 640 480] [640 0 800 600] [0 480 640 480]
2276 *
2277 * NOTE:
2278 * The x and y offset (upper left) in drm_vmw_rect cannot be less than 0. Beside
2279 * device limit on topology, x + w and y + h (lower right) cannot be greater
2280 * than INT_MAX. So topology beyond these limits will return with error.
2281 *
2282 * Returns:
2283 * Zero on success, negative errno on failure.
2284 */
vmw_kms_update_layout_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)2285 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
2286 struct drm_file *file_priv)
2287 {
2288 struct vmw_private *dev_priv = vmw_priv(dev);
2289 struct drm_mode_config *mode_config = &dev->mode_config;
2290 struct drm_vmw_update_layout_arg *arg =
2291 (struct drm_vmw_update_layout_arg *)data;
2292 void __user *user_rects;
2293 struct drm_vmw_rect *rects;
2294 struct drm_rect *drm_rects;
2295 unsigned rects_size;
2296 int ret, i;
2297
2298 if (!arg->num_outputs) {
2299 struct drm_rect def_rect = {0, 0, 800, 600};
2300 VMW_DEBUG_KMS("Default layout x1 = %d y1 = %d x2 = %d y2 = %d\n",
2301 def_rect.x1, def_rect.y1,
2302 def_rect.x2, def_rect.y2);
2303 vmw_du_update_layout(dev_priv, 1, &def_rect);
2304 return 0;
2305 }
2306
2307 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2308 rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2309 GFP_KERNEL);
2310 if (unlikely(!rects))
2311 return -ENOMEM;
2312
2313 user_rects = (void __user *)(unsigned long)arg->rects;
2314 ret = copy_from_user(rects, user_rects, rects_size);
2315 if (unlikely(ret != 0)) {
2316 DRM_ERROR("Failed to get rects.\n");
2317 ret = -EFAULT;
2318 goto out_free;
2319 }
2320
2321 drm_rects = (struct drm_rect *)rects;
2322
2323 VMW_DEBUG_KMS("Layout count = %u\n", arg->num_outputs);
2324 for (i = 0; i < arg->num_outputs; i++) {
2325 struct drm_vmw_rect curr_rect;
2326
2327 /* Verify user-space for overflow as kernel use drm_rect */
2328 if ((rects[i].x + rects[i].w > INT_MAX) ||
2329 (rects[i].y + rects[i].h > INT_MAX)) {
2330 ret = -ERANGE;
2331 goto out_free;
2332 }
2333
2334 curr_rect = rects[i];
2335 drm_rects[i].x1 = curr_rect.x;
2336 drm_rects[i].y1 = curr_rect.y;
2337 drm_rects[i].x2 = curr_rect.x + curr_rect.w;
2338 drm_rects[i].y2 = curr_rect.y + curr_rect.h;
2339
2340 VMW_DEBUG_KMS(" x1 = %d y1 = %d x2 = %d y2 = %d\n",
2341 drm_rects[i].x1, drm_rects[i].y1,
2342 drm_rects[i].x2, drm_rects[i].y2);
2343
2344 /*
2345 * Currently this check is limiting the topology within
2346 * mode_config->max (which actually is max texture size
2347 * supported by virtual device). This limit is here to address
2348 * window managers that create a big framebuffer for whole
2349 * topology.
2350 */
2351 if (drm_rects[i].x1 < 0 || drm_rects[i].y1 < 0 ||
2352 drm_rects[i].x2 > mode_config->max_width ||
2353 drm_rects[i].y2 > mode_config->max_height) {
2354 VMW_DEBUG_KMS("Invalid layout %d %d %d %d\n",
2355 drm_rects[i].x1, drm_rects[i].y1,
2356 drm_rects[i].x2, drm_rects[i].y2);
2357 ret = -EINVAL;
2358 goto out_free;
2359 }
2360 }
2361
2362 ret = vmw_kms_check_display_memory(dev, arg->num_outputs, drm_rects);
2363
2364 if (ret == 0)
2365 vmw_du_update_layout(dev_priv, arg->num_outputs, drm_rects);
2366
2367 out_free:
2368 kfree(rects);
2369 return ret;
2370 }
2371
2372 /**
2373 * vmw_kms_helper_dirty - Helper to build commands and perform actions based
2374 * on a set of cliprects and a set of display units.
2375 *
2376 * @dev_priv: Pointer to a device private structure.
2377 * @framebuffer: Pointer to the framebuffer on which to perform the actions.
2378 * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL.
2379 * Cliprects are given in framebuffer coordinates.
2380 * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must
2381 * be NULL. Cliprects are given in source coordinates.
2382 * @dest_x: X coordinate offset for the crtc / destination clip rects.
2383 * @dest_y: Y coordinate offset for the crtc / destination clip rects.
2384 * @num_clips: Number of cliprects in the @clips or @vclips array.
2385 * @increment: Integer with which to increment the clip counter when looping.
2386 * Used to skip a predetermined number of clip rects.
2387 * @dirty: Closure structure. See the description of struct vmw_kms_dirty.
2388 */
vmw_kms_helper_dirty(struct vmw_private * dev_priv,struct vmw_framebuffer * framebuffer,const struct drm_clip_rect * clips,const struct drm_vmw_rect * vclips,s32 dest_x,s32 dest_y,int num_clips,int increment,struct vmw_kms_dirty * dirty)2389 int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
2390 struct vmw_framebuffer *framebuffer,
2391 const struct drm_clip_rect *clips,
2392 const struct drm_vmw_rect *vclips,
2393 s32 dest_x, s32 dest_y,
2394 int num_clips,
2395 int increment,
2396 struct vmw_kms_dirty *dirty)
2397 {
2398 struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
2399 struct drm_crtc *crtc;
2400 u32 num_units = 0;
2401 u32 i, k;
2402
2403 dirty->dev_priv = dev_priv;
2404
2405 /* If crtc is passed, no need to iterate over other display units */
2406 if (dirty->crtc) {
2407 units[num_units++] = vmw_crtc_to_du(dirty->crtc);
2408 } else {
2409 list_for_each_entry(crtc, &dev_priv->drm.mode_config.crtc_list,
2410 head) {
2411 struct drm_plane *plane = crtc->primary;
2412
2413 if (plane->state->fb == &framebuffer->base)
2414 units[num_units++] = vmw_crtc_to_du(crtc);
2415 }
2416 }
2417
2418 for (k = 0; k < num_units; k++) {
2419 struct vmw_display_unit *unit = units[k];
2420 s32 crtc_x = unit->crtc.x;
2421 s32 crtc_y = unit->crtc.y;
2422 s32 crtc_width = unit->crtc.mode.hdisplay;
2423 s32 crtc_height = unit->crtc.mode.vdisplay;
2424 const struct drm_clip_rect *clips_ptr = clips;
2425 const struct drm_vmw_rect *vclips_ptr = vclips;
2426
2427 dirty->unit = unit;
2428 if (dirty->fifo_reserve_size > 0) {
2429 dirty->cmd = VMW_CMD_RESERVE(dev_priv,
2430 dirty->fifo_reserve_size);
2431 if (!dirty->cmd)
2432 return -ENOMEM;
2433
2434 memset(dirty->cmd, 0, dirty->fifo_reserve_size);
2435 }
2436 dirty->num_hits = 0;
2437 for (i = 0; i < num_clips; i++, clips_ptr += increment,
2438 vclips_ptr += increment) {
2439 s32 clip_left;
2440 s32 clip_top;
2441
2442 /*
2443 * Select clip array type. Note that integer type
2444 * in @clips is unsigned short, whereas in @vclips
2445 * it's 32-bit.
2446 */
2447 if (clips) {
2448 dirty->fb_x = (s32) clips_ptr->x1;
2449 dirty->fb_y = (s32) clips_ptr->y1;
2450 dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x -
2451 crtc_x;
2452 dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y -
2453 crtc_y;
2454 } else {
2455 dirty->fb_x = vclips_ptr->x;
2456 dirty->fb_y = vclips_ptr->y;
2457 dirty->unit_x2 = dirty->fb_x + vclips_ptr->w +
2458 dest_x - crtc_x;
2459 dirty->unit_y2 = dirty->fb_y + vclips_ptr->h +
2460 dest_y - crtc_y;
2461 }
2462
2463 dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x;
2464 dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y;
2465
2466 /* Skip this clip if it's outside the crtc region */
2467 if (dirty->unit_x1 >= crtc_width ||
2468 dirty->unit_y1 >= crtc_height ||
2469 dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0)
2470 continue;
2471
2472 /* Clip right and bottom to crtc limits */
2473 dirty->unit_x2 = min_t(s32, dirty->unit_x2,
2474 crtc_width);
2475 dirty->unit_y2 = min_t(s32, dirty->unit_y2,
2476 crtc_height);
2477
2478 /* Clip left and top to crtc limits */
2479 clip_left = min_t(s32, dirty->unit_x1, 0);
2480 clip_top = min_t(s32, dirty->unit_y1, 0);
2481 dirty->unit_x1 -= clip_left;
2482 dirty->unit_y1 -= clip_top;
2483 dirty->fb_x -= clip_left;
2484 dirty->fb_y -= clip_top;
2485
2486 dirty->clip(dirty);
2487 }
2488
2489 dirty->fifo_commit(dirty);
2490 }
2491
2492 return 0;
2493 }
2494
2495 /**
2496 * vmw_kms_helper_validation_finish - Helper for post KMS command submission
2497 * cleanup and fencing
2498 * @dev_priv: Pointer to the device-private struct
2499 * @file_priv: Pointer identifying the client when user-space fencing is used
2500 * @ctx: Pointer to the validation context
2501 * @out_fence: If non-NULL, returned refcounted fence-pointer
2502 * @user_fence_rep: If non-NULL, pointer to user-space address area
2503 * in which to copy user-space fence info
2504 */
vmw_kms_helper_validation_finish(struct vmw_private * dev_priv,struct drm_file * file_priv,struct vmw_validation_context * ctx,struct vmw_fence_obj ** out_fence,struct drm_vmw_fence_rep __user * user_fence_rep)2505 void vmw_kms_helper_validation_finish(struct vmw_private *dev_priv,
2506 struct drm_file *file_priv,
2507 struct vmw_validation_context *ctx,
2508 struct vmw_fence_obj **out_fence,
2509 struct drm_vmw_fence_rep __user *
2510 user_fence_rep)
2511 {
2512 struct vmw_fence_obj *fence = NULL;
2513 uint32_t handle = 0;
2514 int ret = 0;
2515
2516 if (file_priv || user_fence_rep || vmw_validation_has_bos(ctx) ||
2517 out_fence)
2518 ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
2519 file_priv ? &handle : NULL);
2520 vmw_validation_done(ctx, fence);
2521 if (file_priv)
2522 vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv),
2523 ret, user_fence_rep, fence,
2524 handle, -1);
2525 if (out_fence)
2526 *out_fence = fence;
2527 else
2528 vmw_fence_obj_unreference(&fence);
2529 }
2530
2531 /**
2532 * vmw_kms_update_proxy - Helper function to update a proxy surface from
2533 * its backing MOB.
2534 *
2535 * @res: Pointer to the surface resource
2536 * @clips: Clip rects in framebuffer (surface) space.
2537 * @num_clips: Number of clips in @clips.
2538 * @increment: Integer with which to increment the clip counter when looping.
2539 * Used to skip a predetermined number of clip rects.
2540 *
2541 * This function makes sure the proxy surface is updated from its backing MOB
2542 * using the region given by @clips. The surface resource @res and its backing
2543 * MOB needs to be reserved and validated on call.
2544 */
vmw_kms_update_proxy(struct vmw_resource * res,const struct drm_clip_rect * clips,unsigned num_clips,int increment)2545 int vmw_kms_update_proxy(struct vmw_resource *res,
2546 const struct drm_clip_rect *clips,
2547 unsigned num_clips,
2548 int increment)
2549 {
2550 struct vmw_private *dev_priv = res->dev_priv;
2551 struct drm_vmw_size *size = &vmw_res_to_srf(res)->metadata.base_size;
2552 struct {
2553 SVGA3dCmdHeader header;
2554 SVGA3dCmdUpdateGBImage body;
2555 } *cmd;
2556 SVGA3dBox *box;
2557 size_t copy_size = 0;
2558 int i;
2559
2560 if (!clips)
2561 return 0;
2562
2563 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd) * num_clips);
2564 if (!cmd)
2565 return -ENOMEM;
2566
2567 for (i = 0; i < num_clips; ++i, clips += increment, ++cmd) {
2568 box = &cmd->body.box;
2569
2570 cmd->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
2571 cmd->header.size = sizeof(cmd->body);
2572 cmd->body.image.sid = res->id;
2573 cmd->body.image.face = 0;
2574 cmd->body.image.mipmap = 0;
2575
2576 if (clips->x1 > size->width || clips->x2 > size->width ||
2577 clips->y1 > size->height || clips->y2 > size->height) {
2578 DRM_ERROR("Invalid clips outsize of framebuffer.\n");
2579 return -EINVAL;
2580 }
2581
2582 box->x = clips->x1;
2583 box->y = clips->y1;
2584 box->z = 0;
2585 box->w = clips->x2 - clips->x1;
2586 box->h = clips->y2 - clips->y1;
2587 box->d = 1;
2588
2589 copy_size += sizeof(*cmd);
2590 }
2591
2592 vmw_cmd_commit(dev_priv, copy_size);
2593
2594 return 0;
2595 }
2596
vmw_kms_fbdev_init_data(struct vmw_private * dev_priv,unsigned unit,u32 max_width,u32 max_height,struct drm_connector ** p_con,struct drm_crtc ** p_crtc,struct drm_display_mode ** p_mode)2597 int vmw_kms_fbdev_init_data(struct vmw_private *dev_priv,
2598 unsigned unit,
2599 u32 max_width,
2600 u32 max_height,
2601 struct drm_connector **p_con,
2602 struct drm_crtc **p_crtc,
2603 struct drm_display_mode **p_mode)
2604 {
2605 struct drm_connector *con;
2606 struct vmw_display_unit *du;
2607 struct drm_display_mode *mode;
2608 int i = 0;
2609 int ret = 0;
2610
2611 mutex_lock(&dev_priv->drm.mode_config.mutex);
2612 list_for_each_entry(con, &dev_priv->drm.mode_config.connector_list,
2613 head) {
2614 if (i == unit)
2615 break;
2616
2617 ++i;
2618 }
2619
2620 if (&con->head == &dev_priv->drm.mode_config.connector_list) {
2621 DRM_ERROR("Could not find initial display unit.\n");
2622 ret = -EINVAL;
2623 goto out_unlock;
2624 }
2625
2626 if (list_empty(&con->modes))
2627 (void) vmw_du_connector_fill_modes(con, max_width, max_height);
2628
2629 if (list_empty(&con->modes)) {
2630 DRM_ERROR("Could not find initial display mode.\n");
2631 ret = -EINVAL;
2632 goto out_unlock;
2633 }
2634
2635 du = vmw_connector_to_du(con);
2636 *p_con = con;
2637 *p_crtc = &du->crtc;
2638
2639 list_for_each_entry(mode, &con->modes, head) {
2640 if (mode->type & DRM_MODE_TYPE_PREFERRED)
2641 break;
2642 }
2643
2644 if (&mode->head == &con->modes) {
2645 WARN_ONCE(true, "Could not find initial preferred mode.\n");
2646 *p_mode = list_first_entry(&con->modes,
2647 struct drm_display_mode,
2648 head);
2649 } else {
2650 *p_mode = mode;
2651 }
2652
2653 out_unlock:
2654 mutex_unlock(&dev_priv->drm.mode_config.mutex);
2655
2656 return ret;
2657 }
2658
2659 /**
2660 * vmw_kms_create_implicit_placement_property - Set up the implicit placement
2661 * property.
2662 *
2663 * @dev_priv: Pointer to a device private struct.
2664 *
2665 * Sets up the implicit placement property unless it's already set up.
2666 */
2667 void
vmw_kms_create_implicit_placement_property(struct vmw_private * dev_priv)2668 vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv)
2669 {
2670 if (dev_priv->implicit_placement_property)
2671 return;
2672
2673 dev_priv->implicit_placement_property =
2674 drm_property_create_range(&dev_priv->drm,
2675 DRM_MODE_PROP_IMMUTABLE,
2676 "implicit_placement", 0, 1);
2677 }
2678
2679 /**
2680 * vmw_kms_suspend - Save modesetting state and turn modesetting off.
2681 *
2682 * @dev: Pointer to the drm device
2683 * Return: 0 on success. Negative error code on failure.
2684 */
vmw_kms_suspend(struct drm_device * dev)2685 int vmw_kms_suspend(struct drm_device *dev)
2686 {
2687 struct vmw_private *dev_priv = vmw_priv(dev);
2688
2689 dev_priv->suspend_state = drm_atomic_helper_suspend(dev);
2690 if (IS_ERR(dev_priv->suspend_state)) {
2691 int ret = PTR_ERR(dev_priv->suspend_state);
2692
2693 DRM_ERROR("Failed kms suspend: %d\n", ret);
2694 dev_priv->suspend_state = NULL;
2695
2696 return ret;
2697 }
2698
2699 return 0;
2700 }
2701
2702
2703 /**
2704 * vmw_kms_resume - Re-enable modesetting and restore state
2705 *
2706 * @dev: Pointer to the drm device
2707 * Return: 0 on success. Negative error code on failure.
2708 *
2709 * State is resumed from a previous vmw_kms_suspend(). It's illegal
2710 * to call this function without a previous vmw_kms_suspend().
2711 */
vmw_kms_resume(struct drm_device * dev)2712 int vmw_kms_resume(struct drm_device *dev)
2713 {
2714 struct vmw_private *dev_priv = vmw_priv(dev);
2715 int ret;
2716
2717 if (WARN_ON(!dev_priv->suspend_state))
2718 return 0;
2719
2720 ret = drm_atomic_helper_resume(dev, dev_priv->suspend_state);
2721 dev_priv->suspend_state = NULL;
2722
2723 return ret;
2724 }
2725
2726 /**
2727 * vmw_kms_lost_device - Notify kms that modesetting capabilities will be lost
2728 *
2729 * @dev: Pointer to the drm device
2730 */
vmw_kms_lost_device(struct drm_device * dev)2731 void vmw_kms_lost_device(struct drm_device *dev)
2732 {
2733 drm_atomic_helper_shutdown(dev);
2734 }
2735
2736 /**
2737 * vmw_du_helper_plane_update - Helper to do plane update on a display unit.
2738 * @update: The closure structure.
2739 *
2740 * Call this helper after setting callbacks in &vmw_du_update_plane to do plane
2741 * update on display unit.
2742 *
2743 * Return: 0 on success or a negative error code on failure.
2744 */
vmw_du_helper_plane_update(struct vmw_du_update_plane * update)2745 int vmw_du_helper_plane_update(struct vmw_du_update_plane *update)
2746 {
2747 struct drm_plane_state *state = update->plane->state;
2748 struct drm_plane_state *old_state = update->old_state;
2749 struct drm_atomic_helper_damage_iter iter;
2750 struct drm_rect clip;
2751 struct drm_rect bb;
2752 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
2753 uint32_t reserved_size = 0;
2754 uint32_t submit_size = 0;
2755 uint32_t curr_size = 0;
2756 uint32_t num_hits = 0;
2757 void *cmd_start;
2758 char *cmd_next;
2759 int ret;
2760
2761 /*
2762 * Iterate in advance to check if really need plane update and find the
2763 * number of clips that actually are in plane src for fifo allocation.
2764 */
2765 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
2766 drm_atomic_for_each_plane_damage(&iter, &clip)
2767 num_hits++;
2768
2769 if (num_hits == 0)
2770 return 0;
2771
2772 if (update->vfb->bo) {
2773 struct vmw_framebuffer_bo *vfbbo =
2774 container_of(update->vfb, typeof(*vfbbo), base);
2775
2776 ret = vmw_validation_add_bo(&val_ctx, vfbbo->buffer, false,
2777 update->cpu_blit);
2778 } else {
2779 struct vmw_framebuffer_surface *vfbs =
2780 container_of(update->vfb, typeof(*vfbs), base);
2781
2782 ret = vmw_validation_add_resource(&val_ctx, &vfbs->surface->res,
2783 0, VMW_RES_DIRTY_NONE, NULL,
2784 NULL);
2785 }
2786
2787 if (ret)
2788 return ret;
2789
2790 ret = vmw_validation_prepare(&val_ctx, update->mutex, update->intr);
2791 if (ret)
2792 goto out_unref;
2793
2794 reserved_size = update->calc_fifo_size(update, num_hits);
2795 cmd_start = VMW_CMD_RESERVE(update->dev_priv, reserved_size);
2796 if (!cmd_start) {
2797 ret = -ENOMEM;
2798 goto out_revert;
2799 }
2800
2801 cmd_next = cmd_start;
2802
2803 if (update->post_prepare) {
2804 curr_size = update->post_prepare(update, cmd_next);
2805 cmd_next += curr_size;
2806 submit_size += curr_size;
2807 }
2808
2809 if (update->pre_clip) {
2810 curr_size = update->pre_clip(update, cmd_next, num_hits);
2811 cmd_next += curr_size;
2812 submit_size += curr_size;
2813 }
2814
2815 bb.x1 = INT_MAX;
2816 bb.y1 = INT_MAX;
2817 bb.x2 = INT_MIN;
2818 bb.y2 = INT_MIN;
2819
2820 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
2821 drm_atomic_for_each_plane_damage(&iter, &clip) {
2822 uint32_t fb_x = clip.x1;
2823 uint32_t fb_y = clip.y1;
2824
2825 vmw_du_translate_to_crtc(state, &clip);
2826 if (update->clip) {
2827 curr_size = update->clip(update, cmd_next, &clip, fb_x,
2828 fb_y);
2829 cmd_next += curr_size;
2830 submit_size += curr_size;
2831 }
2832 bb.x1 = min_t(int, bb.x1, clip.x1);
2833 bb.y1 = min_t(int, bb.y1, clip.y1);
2834 bb.x2 = max_t(int, bb.x2, clip.x2);
2835 bb.y2 = max_t(int, bb.y2, clip.y2);
2836 }
2837
2838 curr_size = update->post_clip(update, cmd_next, &bb);
2839 submit_size += curr_size;
2840
2841 if (reserved_size < submit_size)
2842 submit_size = 0;
2843
2844 vmw_cmd_commit(update->dev_priv, submit_size);
2845
2846 vmw_kms_helper_validation_finish(update->dev_priv, NULL, &val_ctx,
2847 update->out_fence, NULL);
2848 return ret;
2849
2850 out_revert:
2851 vmw_validation_revert(&val_ctx);
2852
2853 out_unref:
2854 vmw_validation_unref_lists(&val_ctx);
2855 return ret;
2856 }
2857