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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / gpu / drm / vmwgfx / vmwgfx_kms.c
blobf47d5710cc9515840883db080991fe98bb320915
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
39 /* Might need a hrtimer here? */
40 #define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
41
42 void vmw_du_cleanup(struct vmw_display_unit *du)
43 {
44 drm_plane_cleanup(&du->primary);
45 drm_plane_cleanup(&du->cursor);
46
47 drm_connector_unregister(&du->connector);
48 drm_crtc_cleanup(&du->crtc);
49 drm_encoder_cleanup(&du->encoder);
50 drm_connector_cleanup(&du->connector);
51 }
52
53 /*
54 * Display Unit Cursor functions
55 */
56
57 static int vmw_cursor_update_image(struct vmw_private *dev_priv,
58 u32 *image, u32 width, u32 height,
59 u32 hotspotX, u32 hotspotY)
60 {
61 struct {
62 u32 cmd;
63 SVGAFifoCmdDefineAlphaCursor cursor;
64 } *cmd;
65 u32 image_size = width * height * 4;
66 u32 cmd_size = sizeof(*cmd) + image_size;
67
68 if (!image)
69 return -EINVAL;
70
71 cmd = VMW_FIFO_RESERVE(dev_priv, cmd_size);
72 if (unlikely(cmd == NULL))
73 return -ENOMEM;
74
75 memset(cmd, 0, sizeof(*cmd));
76
77 memcpy(&cmd[1], image, image_size);
78
79 cmd->cmd = SVGA_CMD_DEFINE_ALPHA_CURSOR;
80 cmd->cursor.id = 0;
81 cmd->cursor.width = width;
82 cmd->cursor.height = height;
83 cmd->cursor.hotspotX = hotspotX;
84 cmd->cursor.hotspotY = hotspotY;
85
86 vmw_fifo_commit_flush(dev_priv, cmd_size);
87
88 return 0;
89 }
90
91 static int vmw_cursor_update_bo(struct vmw_private *dev_priv,
92 struct vmw_buffer_object *bo,
93 u32 width, u32 height,
94 u32 hotspotX, u32 hotspotY)
95 {
96 struct ttm_bo_kmap_obj map;
97 unsigned long kmap_offset;
98 unsigned long kmap_num;
99 void *virtual;
100 bool dummy;
101 int ret;
102
103 kmap_offset = 0;
104 kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
105
106 ret = ttm_bo_reserve(&bo->base, true, false, NULL);
107 if (unlikely(ret != 0)) {
108 DRM_ERROR("reserve failed\n");
109 return -EINVAL;
110 }
111
112 ret = ttm_bo_kmap(&bo->base, kmap_offset, kmap_num, &map);
113 if (unlikely(ret != 0))
114 goto err_unreserve;
115
116 virtual = ttm_kmap_obj_virtual(&map, &dummy);
117 ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
118 hotspotX, hotspotY);
119
120 ttm_bo_kunmap(&map);
121 err_unreserve:
122 ttm_bo_unreserve(&bo->base);
123
124 return ret;
125 }
126
127
128 static void vmw_cursor_update_position(struct vmw_private *dev_priv,
129 bool show, int x, int y)
130 {
131 u32 *fifo_mem = dev_priv->mmio_virt;
132 uint32_t count;
133
134 spin_lock(&dev_priv->cursor_lock);
135 vmw_mmio_write(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
136 vmw_mmio_write(x, fifo_mem + SVGA_FIFO_CURSOR_X);
137 vmw_mmio_write(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
138 count = vmw_mmio_read(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
139 vmw_mmio_write(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
140 spin_unlock(&dev_priv->cursor_lock);
141 }
142
143
144 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
145 struct ttm_object_file *tfile,
146 struct ttm_buffer_object *bo,
147 SVGA3dCmdHeader *header)
148 {
149 struct ttm_bo_kmap_obj map;
150 unsigned long kmap_offset;
151 unsigned long kmap_num;
152 SVGA3dCopyBox *box;
153 unsigned box_count;
154 void *virtual;
155 bool dummy;
156 struct vmw_dma_cmd {
157 SVGA3dCmdHeader header;
158 SVGA3dCmdSurfaceDMA dma;
159 } *cmd;
160 int i, ret;
161
162 cmd = container_of(header, struct vmw_dma_cmd, header);
163
164 /* No snooper installed */
165 if (!srf->snooper.image)
166 return;
167
168 if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
169 DRM_ERROR("face and mipmap for cursors should never != 0\n");
170 return;
171 }
172
173 if (cmd->header.size < 64) {
174 DRM_ERROR("at least one full copy box must be given\n");
175 return;
176 }
177
178 box = (SVGA3dCopyBox *)&cmd[1];
179 box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
180 sizeof(SVGA3dCopyBox);
181
182 if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
183 box->x != 0 || box->y != 0 || box->z != 0 ||
184 box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
185 box->d != 1 || box_count != 1) {
186 /* TODO handle none page aligned offsets */
187 /* TODO handle more dst & src != 0 */
188 /* TODO handle more then one copy */
189 DRM_ERROR("Cant snoop dma request for cursor!\n");
190 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
191 box->srcx, box->srcy, box->srcz,
192 box->x, box->y, box->z,
193 box->w, box->h, box->d, box_count,
194 cmd->dma.guest.ptr.offset);
195 return;
196 }
197
198 kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
199 kmap_num = (64*64*4) >> PAGE_SHIFT;
200
201 ret = ttm_bo_reserve(bo, true, false, NULL);
202 if (unlikely(ret != 0)) {
203 DRM_ERROR("reserve failed\n");
204 return;
205 }
206
207 ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
208 if (unlikely(ret != 0))
209 goto err_unreserve;
210
211 virtual = ttm_kmap_obj_virtual(&map, &dummy);
212
213 if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
214 memcpy(srf->snooper.image, virtual, 64*64*4);
215 } else {
216 /* Image is unsigned pointer. */
217 for (i = 0; i < box->h; i++)
218 memcpy(srf->snooper.image + i * 64,
219 virtual + i * cmd->dma.guest.pitch,
220 box->w * 4);
221 }
222
223 srf->snooper.age++;
224
225 ttm_bo_kunmap(&map);
226 err_unreserve:
227 ttm_bo_unreserve(bo);
228 }
229
230 /**
231 * vmw_kms_legacy_hotspot_clear - Clear legacy hotspots
232 *
233 * @dev_priv: Pointer to the device private struct.
234 *
235 * Clears all legacy hotspots.
236 */
237 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv)
238 {
239 struct drm_device *dev = dev_priv->dev;
240 struct vmw_display_unit *du;
241 struct drm_crtc *crtc;
242
243 drm_modeset_lock_all(dev);
244 drm_for_each_crtc(crtc, dev) {
245 du = vmw_crtc_to_du(crtc);
246
247 du->hotspot_x = 0;
248 du->hotspot_y = 0;
249 }
250 drm_modeset_unlock_all(dev);
251 }
252
253 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
254 {
255 struct drm_device *dev = dev_priv->dev;
256 struct vmw_display_unit *du;
257 struct drm_crtc *crtc;
258
259 mutex_lock(&dev->mode_config.mutex);
260
261 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
262 du = vmw_crtc_to_du(crtc);
263 if (!du->cursor_surface ||
264 du->cursor_age == du->cursor_surface->snooper.age)
265 continue;
266
267 du->cursor_age = du->cursor_surface->snooper.age;
268 vmw_cursor_update_image(dev_priv,
269 du->cursor_surface->snooper.image,
270 64, 64,
271 du->hotspot_x + du->core_hotspot_x,
272 du->hotspot_y + du->core_hotspot_y);
273 }
274
275 mutex_unlock(&dev->mode_config.mutex);
276 }
277
278
279 void vmw_du_cursor_plane_destroy(struct drm_plane *plane)
280 {
281 vmw_cursor_update_position(plane->dev->dev_private, false, 0, 0);
282
283 drm_plane_cleanup(plane);
284 }
285
286
287 void vmw_du_primary_plane_destroy(struct drm_plane *plane)
288 {
289 drm_plane_cleanup(plane);
290
291 /* Planes are static in our case so we don't free it */
292 }
293
294
295 /**
296 * vmw_du_vps_unpin_surf - unpins resource associated with a framebuffer surface
297 *
298 * @vps: plane state associated with the display surface
299 * @unreference: true if we also want to unreference the display.
300 */
301 void vmw_du_plane_unpin_surf(struct vmw_plane_state *vps,
302 bool unreference)
303 {
304 if (vps->surf) {
305 if (vps->pinned) {
306 vmw_resource_unpin(&vps->surf->res);
307 vps->pinned--;
308 }
309
310 if (unreference) {
311 if (vps->pinned)
312 DRM_ERROR("Surface still pinned\n");
313 vmw_surface_unreference(&vps->surf);
314 }
315 }
316 }
317
318
319 /**
320 * vmw_du_plane_cleanup_fb - Unpins the cursor
321 *
322 * @plane: display plane
323 * @old_state: Contains the FB to clean up
324 *
325 * Unpins the framebuffer surface
326 *
327 * Returns 0 on success
328 */
329 void
330 vmw_du_plane_cleanup_fb(struct drm_plane *plane,
331 struct drm_plane_state *old_state)
332 {
333 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
334
335 vmw_du_plane_unpin_surf(vps, false);
336 }
337
338
339 /**
340 * vmw_du_cursor_plane_prepare_fb - Readies the cursor by referencing it
341 *
342 * @plane: display plane
343 * @new_state: info on the new plane state, including the FB
344 *
345 * Returns 0 on success
346 */
347 int
348 vmw_du_cursor_plane_prepare_fb(struct drm_plane *plane,
349 struct drm_plane_state *new_state)
350 {
351 struct drm_framebuffer *fb = new_state->fb;
352 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
353
354
355 if (vps->surf)
356 vmw_surface_unreference(&vps->surf);
357
358 if (vps->bo)
359 vmw_bo_unreference(&vps->bo);
360
361 if (fb) {
362 if (vmw_framebuffer_to_vfb(fb)->bo) {
363 vps->bo = vmw_framebuffer_to_vfbd(fb)->buffer;
364 vmw_bo_reference(vps->bo);
365 } else {
366 vps->surf = vmw_framebuffer_to_vfbs(fb)->surface;
367 vmw_surface_reference(vps->surf);
368 }
369 }
370
371 return 0;
372 }
373
374
375 void
376 vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
377 struct drm_plane_state *old_state)
378 {
379 struct drm_crtc *crtc = plane->state->crtc ?: old_state->crtc;
380 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
381 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
382 struct vmw_plane_state *vps = vmw_plane_state_to_vps(plane->state);
383 s32 hotspot_x, hotspot_y;
384 int ret = 0;
385
386
387 hotspot_x = du->hotspot_x;
388 hotspot_y = du->hotspot_y;
389
390 if (plane->state->fb) {
391 hotspot_x += plane->state->fb->hot_x;
392 hotspot_y += plane->state->fb->hot_y;
393 }
394
395 du->cursor_surface = vps->surf;
396 du->cursor_bo = vps->bo;
397
398 if (vps->surf) {
399 du->cursor_age = du->cursor_surface->snooper.age;
400
401 ret = vmw_cursor_update_image(dev_priv,
402 vps->surf->snooper.image,
403 64, 64, hotspot_x,
404 hotspot_y);
405 } else if (vps->bo) {
406 ret = vmw_cursor_update_bo(dev_priv, vps->bo,
407 plane->state->crtc_w,
408 plane->state->crtc_h,
409 hotspot_x, hotspot_y);
410 } else {
411 vmw_cursor_update_position(dev_priv, false, 0, 0);
412 return;
413 }
414
415 if (!ret) {
416 du->cursor_x = plane->state->crtc_x + du->set_gui_x;
417 du->cursor_y = plane->state->crtc_y + du->set_gui_y;
418
419 vmw_cursor_update_position(dev_priv, true,
420 du->cursor_x + hotspot_x,
421 du->cursor_y + hotspot_y);
422
423 du->core_hotspot_x = hotspot_x - du->hotspot_x;
424 du->core_hotspot_y = hotspot_y - du->hotspot_y;
425 } else {
426 DRM_ERROR("Failed to update cursor image\n");
427 }
428 }
429
430
431 /**
432 * vmw_du_primary_plane_atomic_check - check if the new state is okay
433 *
434 * @plane: display plane
435 * @state: info on the new plane state, including the FB
436 *
437 * Check if the new state is settable given the current state. Other
438 * than what the atomic helper checks, we care about crtc fitting
439 * the FB and maintaining one active framebuffer.
440 *
441 * Returns 0 on success
442 */
443 int vmw_du_primary_plane_atomic_check(struct drm_plane *plane,
444 struct drm_plane_state *state)
445 {
446 struct drm_crtc_state *crtc_state = NULL;
447 struct drm_framebuffer *new_fb = state->fb;
448 int ret;
449
450 if (state->crtc)
451 crtc_state = drm_atomic_get_new_crtc_state(state->state, state->crtc);
452
453 ret = drm_atomic_helper_check_plane_state(state, crtc_state,
454 DRM_PLANE_HELPER_NO_SCALING,
455 DRM_PLANE_HELPER_NO_SCALING,
456 false, true);
457
458 if (!ret && new_fb) {
459 struct drm_crtc *crtc = state->crtc;
460 struct vmw_connector_state *vcs;
461 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
462
463 vcs = vmw_connector_state_to_vcs(du->connector.state);
464 }
465
466
467 return ret;
468 }
469
470
471 /**
472 * vmw_du_cursor_plane_atomic_check - check if the new state is okay
473 *
474 * @plane: cursor plane
475 * @state: info on the new plane state
476 *
477 * This is a chance to fail if the new cursor state does not fit
478 * our requirements.
479 *
480 * Returns 0 on success
481 */
482 int vmw_du_cursor_plane_atomic_check(struct drm_plane *plane,
483 struct drm_plane_state *new_state)
484 {
485 int ret = 0;
486 struct drm_crtc_state *crtc_state = NULL;
487 struct vmw_surface *surface = NULL;
488 struct drm_framebuffer *fb = new_state->fb;
489
490 if (new_state->crtc)
491 crtc_state = drm_atomic_get_new_crtc_state(new_state->state,
492 new_state->crtc);
493
494 ret = drm_atomic_helper_check_plane_state(new_state, crtc_state,
495 DRM_PLANE_HELPER_NO_SCALING,
496 DRM_PLANE_HELPER_NO_SCALING,
497 true, true);
498 if (ret)
499 return ret;
500
501 /* Turning off */
502 if (!fb)
503 return 0;
504
505 /* A lot of the code assumes this */
506 if (new_state->crtc_w != 64 || new_state->crtc_h != 64) {
507 DRM_ERROR("Invalid cursor dimensions (%d, %d)\n",
508 new_state->crtc_w, new_state->crtc_h);
509 ret = -EINVAL;
510 }
511
512 if (!vmw_framebuffer_to_vfb(fb)->bo)
513 surface = vmw_framebuffer_to_vfbs(fb)->surface;
514
515 if (surface && !surface->snooper.image) {
516 DRM_ERROR("surface not suitable for cursor\n");
517 ret = -EINVAL;
518 }
519
520 return ret;
521 }
522
523
524 int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
525 struct drm_crtc_state *new_state)
526 {
527 struct vmw_display_unit *du = vmw_crtc_to_du(new_state->crtc);
528 int connector_mask = drm_connector_mask(&du->connector);
529 bool has_primary = new_state->plane_mask &
530 drm_plane_mask(crtc->primary);
531
532 /* We always want to have an active plane with an active CRTC */
533 if (has_primary != new_state->enable)
534 return -EINVAL;
535
536
537 if (new_state->connector_mask != connector_mask &&
538 new_state->connector_mask != 0) {
539 DRM_ERROR("Invalid connectors configuration\n");
540 return -EINVAL;
541 }
542
543 /*
544 * Our virtual device does not have a dot clock, so use the logical
545 * clock value as the dot clock.
546 */
547 if (new_state->mode.crtc_clock == 0)
548 new_state->adjusted_mode.crtc_clock = new_state->mode.clock;
549
550 return 0;
551 }
552
553
554 void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
555 struct drm_crtc_state *old_crtc_state)
556 {
557 }
558
559
560 void vmw_du_crtc_atomic_flush(struct drm_crtc *crtc,
561 struct drm_crtc_state *old_crtc_state)
562 {
563 struct drm_pending_vblank_event *event = crtc->state->event;
564
565 if (event) {
566 crtc->state->event = NULL;
567
568 spin_lock_irq(&crtc->dev->event_lock);
569 drm_crtc_send_vblank_event(crtc, event);
570 spin_unlock_irq(&crtc->dev->event_lock);
571 }
572 }
573
574
575 /**
576 * vmw_du_crtc_duplicate_state - duplicate crtc state
577 * @crtc: DRM crtc
578 *
579 * Allocates and returns a copy of the crtc state (both common and
580 * vmw-specific) for the specified crtc.
581 *
582 * Returns: The newly allocated crtc state, or NULL on failure.
583 */
584 struct drm_crtc_state *
585 vmw_du_crtc_duplicate_state(struct drm_crtc *crtc)
586 {
587 struct drm_crtc_state *state;
588 struct vmw_crtc_state *vcs;
589
590 if (WARN_ON(!crtc->state))
591 return NULL;
592
593 vcs = kmemdup(crtc->state, sizeof(*vcs), GFP_KERNEL);
594
595 if (!vcs)
596 return NULL;
597
598 state = &vcs->base;
599
600 __drm_atomic_helper_crtc_duplicate_state(crtc, state);
601
602 return state;
603 }
604
605
606 /**
607 * vmw_du_crtc_reset - creates a blank vmw crtc state
608 * @crtc: DRM crtc
609 *
610 * Resets the atomic state for @crtc by freeing the state pointer (which
611 * might be NULL, e.g. at driver load time) and allocating a new empty state
612 * object.
613 */
614 void vmw_du_crtc_reset(struct drm_crtc *crtc)
615 {
616 struct vmw_crtc_state *vcs;
617
618
619 if (crtc->state) {
620 __drm_atomic_helper_crtc_destroy_state(crtc->state);
621
622 kfree(vmw_crtc_state_to_vcs(crtc->state));
623 }
624
625 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
626
627 if (!vcs) {
628 DRM_ERROR("Cannot allocate vmw_crtc_state\n");
629 return;
630 }
631
632 crtc->state = &vcs->base;
633 crtc->state->crtc = crtc;
634 }
635
636
637 /**
638 * vmw_du_crtc_destroy_state - destroy crtc state
639 * @crtc: DRM crtc
640 * @state: state object to destroy
641 *
642 * Destroys the crtc state (both common and vmw-specific) for the
643 * specified plane.
644 */
645 void
646 vmw_du_crtc_destroy_state(struct drm_crtc *crtc,
647 struct drm_crtc_state *state)
648 {
649 drm_atomic_helper_crtc_destroy_state(crtc, state);
650 }
651
652
653 /**
654 * vmw_du_plane_duplicate_state - duplicate plane state
655 * @plane: drm plane
656 *
657 * Allocates and returns a copy of the plane state (both common and
658 * vmw-specific) for the specified plane.
659 *
660 * Returns: The newly allocated plane state, or NULL on failure.
661 */
662 struct drm_plane_state *
663 vmw_du_plane_duplicate_state(struct drm_plane *plane)
664 {
665 struct drm_plane_state *state;
666 struct vmw_plane_state *vps;
667
668 vps = kmemdup(plane->state, sizeof(*vps), GFP_KERNEL);
669
670 if (!vps)
671 return NULL;
672
673 vps->pinned = 0;
674 vps->cpp = 0;
675
676 /* Each ref counted resource needs to be acquired again */
677 if (vps->surf)
678 (void) vmw_surface_reference(vps->surf);
679
680 if (vps->bo)
681 (void) vmw_bo_reference(vps->bo);
682
683 state = &vps->base;
684
685 __drm_atomic_helper_plane_duplicate_state(plane, state);
686
687 return state;
688 }
689
690
691 /**
692 * vmw_du_plane_reset - creates a blank vmw plane state
693 * @plane: drm plane
694 *
695 * Resets the atomic state for @plane by freeing the state pointer (which might
696 * be NULL, e.g. at driver load time) and allocating a new empty state object.
697 */
698 void vmw_du_plane_reset(struct drm_plane *plane)
699 {
700 struct vmw_plane_state *vps;
701
702
703 if (plane->state)
704 vmw_du_plane_destroy_state(plane, plane->state);
705
706 vps = kzalloc(sizeof(*vps), GFP_KERNEL);
707
708 if (!vps) {
709 DRM_ERROR("Cannot allocate vmw_plane_state\n");
710 return;
711 }
712
713 __drm_atomic_helper_plane_reset(plane, &vps->base);
714 }
715
716
717 /**
718 * vmw_du_plane_destroy_state - destroy plane state
719 * @plane: DRM plane
720 * @state: state object to destroy
721 *
722 * Destroys the plane state (both common and vmw-specific) for the
723 * specified plane.
724 */
725 void
726 vmw_du_plane_destroy_state(struct drm_plane *plane,
727 struct drm_plane_state *state)
728 {
729 struct vmw_plane_state *vps = vmw_plane_state_to_vps(state);
730
731
732 /* Should have been freed by cleanup_fb */
733 if (vps->surf)
734 vmw_surface_unreference(&vps->surf);
735
736 if (vps->bo)
737 vmw_bo_unreference(&vps->bo);
738
739 drm_atomic_helper_plane_destroy_state(plane, state);
740 }
741
742
743 /**
744 * vmw_du_connector_duplicate_state - duplicate connector state
745 * @connector: DRM connector
746 *
747 * Allocates and returns a copy of the connector state (both common and
748 * vmw-specific) for the specified connector.
749 *
750 * Returns: The newly allocated connector state, or NULL on failure.
751 */
752 struct drm_connector_state *
753 vmw_du_connector_duplicate_state(struct drm_connector *connector)
754 {
755 struct drm_connector_state *state;
756 struct vmw_connector_state *vcs;
757
758 if (WARN_ON(!connector->state))
759 return NULL;
760
761 vcs = kmemdup(connector->state, sizeof(*vcs), GFP_KERNEL);
762
763 if (!vcs)
764 return NULL;
765
766 state = &vcs->base;
767
768 __drm_atomic_helper_connector_duplicate_state(connector, state);
769
770 return state;
771 }
772
773
774 /**
775 * vmw_du_connector_reset - creates a blank vmw connector state
776 * @connector: DRM connector
777 *
778 * Resets the atomic state for @connector by freeing the state pointer (which
779 * might be NULL, e.g. at driver load time) and allocating a new empty state
780 * object.
781 */
782 void vmw_du_connector_reset(struct drm_connector *connector)
783 {
784 struct vmw_connector_state *vcs;
785
786
787 if (connector->state) {
788 __drm_atomic_helper_connector_destroy_state(connector->state);
789
790 kfree(vmw_connector_state_to_vcs(connector->state));
791 }
792
793 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
794
795 if (!vcs) {
796 DRM_ERROR("Cannot allocate vmw_connector_state\n");
797 return;
798 }
799
800 __drm_atomic_helper_connector_reset(connector, &vcs->base);
801 }
802
803
804 /**
805 * vmw_du_connector_destroy_state - destroy connector state
806 * @connector: DRM connector
807 * @state: state object to destroy
808 *
809 * Destroys the connector state (both common and vmw-specific) for the
810 * specified plane.
811 */
812 void
813 vmw_du_connector_destroy_state(struct drm_connector *connector,
814 struct drm_connector_state *state)
815 {
816 drm_atomic_helper_connector_destroy_state(connector, state);
817 }
818 /*
819 * Generic framebuffer code
820 */
821
822 /*
823 * Surface framebuffer code
824 */
825
826 static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
827 {
828 struct vmw_framebuffer_surface *vfbs =
829 vmw_framebuffer_to_vfbs(framebuffer);
830
831 drm_framebuffer_cleanup(framebuffer);
832 vmw_surface_unreference(&vfbs->surface);
833 if (vfbs->base.user_obj)
834 ttm_base_object_unref(&vfbs->base.user_obj);
835
836 kfree(vfbs);
837 }
838
839 /**
840 * vmw_kms_readback - Perform a readback from the screen system to
841 * a buffer-object backed framebuffer.
842 *
843 * @dev_priv: Pointer to the device private structure.
844 * @file_priv: Pointer to a struct drm_file identifying the caller.
845 * Must be set to NULL if @user_fence_rep is NULL.
846 * @vfb: Pointer to the buffer-object backed framebuffer.
847 * @user_fence_rep: User-space provided structure for fence information.
848 * Must be set to non-NULL if @file_priv is non-NULL.
849 * @vclips: Array of clip rects.
850 * @num_clips: Number of clip rects in @vclips.
851 *
852 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
853 * interrupted.
854 */
855 int vmw_kms_readback(struct vmw_private *dev_priv,
856 struct drm_file *file_priv,
857 struct vmw_framebuffer *vfb,
858 struct drm_vmw_fence_rep __user *user_fence_rep,
859 struct drm_vmw_rect *vclips,
860 uint32_t num_clips)
861 {
862 switch (dev_priv->active_display_unit) {
863 case vmw_du_screen_object:
864 return vmw_kms_sou_readback(dev_priv, file_priv, vfb,
865 user_fence_rep, vclips, num_clips,
866 NULL);
867 case vmw_du_screen_target:
868 return vmw_kms_stdu_dma(dev_priv, file_priv, vfb,
869 user_fence_rep, NULL, vclips, num_clips,
870 1, false, true, NULL);
871 default:
872 WARN_ONCE(true,
873 "Readback called with invalid display system.\n");
874 }
875
876 return -ENOSYS;
877 }
878
879
880 static const struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
881 .destroy = vmw_framebuffer_surface_destroy,
882 .dirty = drm_atomic_helper_dirtyfb,
883 };
884
885 static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
886 struct vmw_surface *surface,
887 struct vmw_framebuffer **out,
888 const struct drm_mode_fb_cmd2
889 *mode_cmd,
890 bool is_bo_proxy)
891
892 {
893 struct drm_device *dev = dev_priv->dev;
894 struct vmw_framebuffer_surface *vfbs;
895 enum SVGA3dSurfaceFormat format;
896 int ret;
897 struct drm_format_name_buf format_name;
898
899 /* 3D is only supported on HWv8 and newer hosts */
900 if (dev_priv->active_display_unit == vmw_du_legacy)
901 return -ENOSYS;
902
903 /*
904 * Sanity checks.
905 */
906
907 /* Surface must be marked as a scanout. */
908 if (unlikely(!surface->scanout))
909 return -EINVAL;
910
911 if (unlikely(surface->mip_levels[0] != 1 ||
912 surface->num_sizes != 1 ||
913 surface->base_size.width < mode_cmd->width ||
914 surface->base_size.height < mode_cmd->height ||
915 surface->base_size.depth != 1)) {
916 DRM_ERROR("Incompatible surface dimensions "
917 "for requested mode.\n");
918 return -EINVAL;
919 }
920
921 switch (mode_cmd->pixel_format) {
922 case DRM_FORMAT_ARGB8888:
923 format = SVGA3D_A8R8G8B8;
924 break;
925 case DRM_FORMAT_XRGB8888:
926 format = SVGA3D_X8R8G8B8;
927 break;
928 case DRM_FORMAT_RGB565:
929 format = SVGA3D_R5G6B5;
930 break;
931 case DRM_FORMAT_XRGB1555:
932 format = SVGA3D_A1R5G5B5;
933 break;
934 default:
935 DRM_ERROR("Invalid pixel format: %s\n",
936 drm_get_format_name(mode_cmd->pixel_format, &format_name));
937 return -EINVAL;
938 }
939
940 /*
941 * For DX, surface format validation is done when surface->scanout
942 * is set.
943 */
944 if (!dev_priv->has_dx && format != surface->format) {
945 DRM_ERROR("Invalid surface format for requested mode.\n");
946 return -EINVAL;
947 }
948
949 vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
950 if (!vfbs) {
951 ret = -ENOMEM;
952 goto out_err1;
953 }
954
955 drm_helper_mode_fill_fb_struct(dev, &vfbs->base.base, mode_cmd);
956 vfbs->surface = vmw_surface_reference(surface);
957 vfbs->base.user_handle = mode_cmd->handles[0];
958 vfbs->is_bo_proxy = is_bo_proxy;
959
960 *out = &vfbs->base;
961
962 ret = drm_framebuffer_init(dev, &vfbs->base.base,
963 &vmw_framebuffer_surface_funcs);
964 if (ret)
965 goto out_err2;
966
967 return 0;
968
969 out_err2:
970 vmw_surface_unreference(&surface);
971 kfree(vfbs);
972 out_err1:
973 return ret;
974 }
975
976 /*
977 * Buffer-object framebuffer code
978 */
979
980 static void vmw_framebuffer_bo_destroy(struct drm_framebuffer *framebuffer)
981 {
982 struct vmw_framebuffer_bo *vfbd =
983 vmw_framebuffer_to_vfbd(framebuffer);
984
985 drm_framebuffer_cleanup(framebuffer);
986 vmw_bo_unreference(&vfbd->buffer);
987 if (vfbd->base.user_obj)
988 ttm_base_object_unref(&vfbd->base.user_obj);
989
990 kfree(vfbd);
991 }
992
993 static int vmw_framebuffer_bo_dirty(struct drm_framebuffer *framebuffer,
994 struct drm_file *file_priv,
995 unsigned int flags, unsigned int color,
996 struct drm_clip_rect *clips,
997 unsigned int num_clips)
998 {
999 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
1000 struct vmw_framebuffer_bo *vfbd =
1001 vmw_framebuffer_to_vfbd(framebuffer);
1002 struct drm_clip_rect norect;
1003 int ret, increment = 1;
1004
1005 drm_modeset_lock_all(dev_priv->dev);
1006
1007 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
1008 if (unlikely(ret != 0)) {
1009 drm_modeset_unlock_all(dev_priv->dev);
1010 return ret;
1011 }
1012
1013 if (!num_clips) {
1014 num_clips = 1;
1015 clips = &norect;
1016 norect.x1 = norect.y1 = 0;
1017 norect.x2 = framebuffer->width;
1018 norect.y2 = framebuffer->height;
1019 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
1020 num_clips /= 2;
1021 increment = 2;
1022 }
1023
1024 switch (dev_priv->active_display_unit) {
1025 case vmw_du_legacy:
1026 ret = vmw_kms_ldu_do_bo_dirty(dev_priv, &vfbd->base, 0, 0,
1027 clips, num_clips, increment);
1028 break;
1029 default:
1030 ret = -EINVAL;
1031 WARN_ONCE(true, "Dirty called with invalid display system.\n");
1032 break;
1033 }
1034
1035 vmw_fifo_flush(dev_priv, false);
1036 ttm_read_unlock(&dev_priv->reservation_sem);
1037
1038 drm_modeset_unlock_all(dev_priv->dev);
1039
1040 return ret;
1041 }
1042
1043 static int vmw_framebuffer_bo_dirty_ext(struct drm_framebuffer *framebuffer,
1044 struct drm_file *file_priv,
1045 unsigned int flags, unsigned int color,
1046 struct drm_clip_rect *clips,
1047 unsigned int num_clips)
1048 {
1049 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
1050
1051 if (dev_priv->active_display_unit == vmw_du_legacy)
1052 return vmw_framebuffer_bo_dirty(framebuffer, file_priv, flags,
1053 color, clips, num_clips);
1054
1055 return drm_atomic_helper_dirtyfb(framebuffer, file_priv, flags, color,
1056 clips, num_clips);
1057 }
1058
1059 static const struct drm_framebuffer_funcs vmw_framebuffer_bo_funcs = {
1060 .destroy = vmw_framebuffer_bo_destroy,
1061 .dirty = vmw_framebuffer_bo_dirty_ext,
1062 };
1063
1064 /**
1065 * Pin the bofer in a location suitable for access by the
1066 * display system.
1067 */
1068 static int vmw_framebuffer_pin(struct vmw_framebuffer *vfb)
1069 {
1070 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1071 struct vmw_buffer_object *buf;
1072 struct ttm_placement *placement;
1073 int ret;
1074
1075 buf = vfb->bo ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
1076 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
1077
1078 if (!buf)
1079 return 0;
1080
1081 switch (dev_priv->active_display_unit) {
1082 case vmw_du_legacy:
1083 vmw_overlay_pause_all(dev_priv);
1084 ret = vmw_bo_pin_in_start_of_vram(dev_priv, buf, false);
1085 vmw_overlay_resume_all(dev_priv);
1086 break;
1087 case vmw_du_screen_object:
1088 case vmw_du_screen_target:
1089 if (vfb->bo) {
1090 if (dev_priv->capabilities & SVGA_CAP_3D) {
1091 /*
1092 * Use surface DMA to get content to
1093 * sreen target surface.
1094 */
1095 placement = &vmw_vram_gmr_placement;
1096 } else {
1097 /* Use CPU blit. */
1098 placement = &vmw_sys_placement;
1099 }
1100 } else {
1101 /* Use surface / image update */
1102 placement = &vmw_mob_placement;
1103 }
1104
1105 return vmw_bo_pin_in_placement(dev_priv, buf, placement, false);
1106 default:
1107 return -EINVAL;
1108 }
1109
1110 return ret;
1111 }
1112
1113 static int vmw_framebuffer_unpin(struct vmw_framebuffer *vfb)
1114 {
1115 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1116 struct vmw_buffer_object *buf;
1117
1118 buf = vfb->bo ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
1119 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
1120
1121 if (WARN_ON(!buf))
1122 return 0;
1123
1124 return vmw_bo_unpin(dev_priv, buf, false);
1125 }
1126
1127 /**
1128 * vmw_create_bo_proxy - create a proxy surface for the buffer object
1129 *
1130 * @dev: DRM device
1131 * @mode_cmd: parameters for the new surface
1132 * @bo_mob: MOB backing the buffer object
1133 * @srf_out: newly created surface
1134 *
1135 * When the content FB is a buffer object, we create a surface as a proxy to the
1136 * same buffer. This way we can do a surface copy rather than a surface DMA.
1137 * This is a more efficient approach
1138 *
1139 * RETURNS:
1140 * 0 on success, error code otherwise
1141 */
1142 static int vmw_create_bo_proxy(struct drm_device *dev,
1143 const struct drm_mode_fb_cmd2 *mode_cmd,
1144 struct vmw_buffer_object *bo_mob,
1145 struct vmw_surface **srf_out)
1146 {
1147 uint32_t format;
1148 struct drm_vmw_size content_base_size = {0};
1149 struct vmw_resource *res;
1150 unsigned int bytes_pp;
1151 struct drm_format_name_buf format_name;
1152 int ret;
1153
1154 switch (mode_cmd->pixel_format) {
1155 case DRM_FORMAT_ARGB8888:
1156 case DRM_FORMAT_XRGB8888:
1157 format = SVGA3D_X8R8G8B8;
1158 bytes_pp = 4;
1159 break;
1160
1161 case DRM_FORMAT_RGB565:
1162 case DRM_FORMAT_XRGB1555:
1163 format = SVGA3D_R5G6B5;
1164 bytes_pp = 2;
1165 break;
1166
1167 case 8:
1168 format = SVGA3D_P8;
1169 bytes_pp = 1;
1170 break;
1171
1172 default:
1173 DRM_ERROR("Invalid framebuffer format %s\n",
1174 drm_get_format_name(mode_cmd->pixel_format, &format_name));
1175 return -EINVAL;
1176 }
1177
1178 content_base_size.width = mode_cmd->pitches[0] / bytes_pp;
1179 content_base_size.height = mode_cmd->height;
1180 content_base_size.depth = 1;
1181
1182 ret = vmw_surface_gb_priv_define(dev,
1183 0, /* kernel visible only */
1184 0, /* flags */
1185 format,
1186 true, /* can be a scanout buffer */
1187 1, /* num of mip levels */
1188 0,
1189 0,
1190 content_base_size,
1191 SVGA3D_MS_PATTERN_NONE,
1192 SVGA3D_MS_QUALITY_NONE,
1193 srf_out);
1194 if (ret) {
1195 DRM_ERROR("Failed to allocate proxy content buffer\n");
1196 return ret;
1197 }
1198
1199 res = &(*srf_out)->res;
1200
1201 /* Reserve and switch the backing mob. */
1202 mutex_lock(&res->dev_priv->cmdbuf_mutex);
1203 (void) vmw_resource_reserve(res, false, true);
1204 vmw_bo_unreference(&res->backup);
1205 res->backup = vmw_bo_reference(bo_mob);
1206 res->backup_offset = 0;
1207 vmw_resource_unreserve(res, false, false, false, NULL, 0);
1208 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
1209
1210 return 0;
1211 }
1212
1213
1214
1215 static int vmw_kms_new_framebuffer_bo(struct vmw_private *dev_priv,
1216 struct vmw_buffer_object *bo,
1217 struct vmw_framebuffer **out,
1218 const struct drm_mode_fb_cmd2
1219 *mode_cmd)
1220
1221 {
1222 struct drm_device *dev = dev_priv->dev;
1223 struct vmw_framebuffer_bo *vfbd;
1224 unsigned int requested_size;
1225 struct drm_format_name_buf format_name;
1226 int ret;
1227
1228 requested_size = mode_cmd->height * mode_cmd->pitches[0];
1229 if (unlikely(requested_size > bo->base.num_pages * PAGE_SIZE)) {
1230 DRM_ERROR("Screen buffer object size is too small "
1231 "for requested mode.\n");
1232 return -EINVAL;
1233 }
1234
1235 /* Limited framebuffer color depth support for screen objects */
1236 if (dev_priv->active_display_unit == vmw_du_screen_object) {
1237 switch (mode_cmd->pixel_format) {
1238 case DRM_FORMAT_XRGB8888:
1239 case DRM_FORMAT_ARGB8888:
1240 break;
1241 case DRM_FORMAT_XRGB1555:
1242 case DRM_FORMAT_RGB565:
1243 break;
1244 default:
1245 DRM_ERROR("Invalid pixel format: %s\n",
1246 drm_get_format_name(mode_cmd->pixel_format, &format_name));
1247 return -EINVAL;
1248 }
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 * @width: requested width
1282 * @height: requested height
1283 *
1284 * Surfaces need to be less than texture size
1285 */
1286 static bool
1287 vmw_kms_srf_ok(struct vmw_private *dev_priv, uint32_t width, uint32_t height)
1288 {
1289 if (width > dev_priv->texture_max_width ||
1290 height > dev_priv->texture_max_height)
1291 return false;
1292
1293 return true;
1294 }
1295
1296 /**
1297 * vmw_kms_new_framebuffer - Create a new framebuffer.
1298 *
1299 * @dev_priv: Pointer to device private struct.
1300 * @bo: Pointer to buffer object to wrap the kms framebuffer around.
1301 * Either @bo or @surface must be NULL.
1302 * @surface: Pointer to a surface to wrap the kms framebuffer around.
1303 * Either @bo or @surface must be NULL.
1304 * @only_2d: No presents will occur to this buffer object based framebuffer.
1305 * This helps the code to do some important optimizations.
1306 * @mode_cmd: Frame-buffer metadata.
1307 */
1308 struct vmw_framebuffer *
1309 vmw_kms_new_framebuffer(struct vmw_private *dev_priv,
1310 struct vmw_buffer_object *bo,
1311 struct vmw_surface *surface,
1312 bool only_2d,
1313 const struct drm_mode_fb_cmd2 *mode_cmd)
1314 {
1315 struct vmw_framebuffer *vfb = NULL;
1316 bool is_bo_proxy = false;
1317 int ret;
1318
1319 /*
1320 * We cannot use the SurfaceDMA command in an non-accelerated VM,
1321 * therefore, wrap the buffer object in a surface so we can use the
1322 * SurfaceCopy command.
1323 */
1324 if (vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height) &&
1325 bo && only_2d &&
1326 mode_cmd->width > 64 && /* Don't create a proxy for cursor */
1327 dev_priv->active_display_unit == vmw_du_screen_target) {
1328 ret = vmw_create_bo_proxy(dev_priv->dev, mode_cmd,
1329 bo, &surface);
1330 if (ret)
1331 return ERR_PTR(ret);
1332
1333 is_bo_proxy = true;
1334 }
1335
1336 /* Create the new framebuffer depending one what we have */
1337 if (surface) {
1338 ret = vmw_kms_new_framebuffer_surface(dev_priv, surface, &vfb,
1339 mode_cmd,
1340 is_bo_proxy);
1341
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
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 goto err_out;
1405
1406
1407 if (!bo &&
1408 !vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height)) {
1409 DRM_ERROR("Surface size cannot exceed %dx%d",
1410 dev_priv->texture_max_width,
1411 dev_priv->texture_max_height);
1412 goto err_out;
1413 }
1414
1415
1416 vfb = vmw_kms_new_framebuffer(dev_priv, bo, surface,
1417 !(dev_priv->capabilities & SVGA_CAP_3D),
1418 mode_cmd);
1419 if (IS_ERR(vfb)) {
1420 ret = PTR_ERR(vfb);
1421 goto err_out;
1422 }
1423
1424 err_out:
1425 /* vmw_user_lookup_handle takes one ref so does new_fb */
1426 if (bo)
1427 vmw_bo_unreference(&bo);
1428 if (surface)
1429 vmw_surface_unreference(&surface);
1430
1431 if (ret) {
1432 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1433 ttm_base_object_unref(&user_obj);
1434 return ERR_PTR(ret);
1435 } else
1436 vfb->user_obj = user_obj;
1437
1438 return &vfb->base;
1439 }
1440
1441 /**
1442 * vmw_kms_check_display_memory - Validates display memory required for a
1443 * topology
1444 * @dev: DRM device
1445 * @num_rects: number of drm_rect in rects
1446 * @rects: array of drm_rect representing the topology to validate indexed by
1447 * crtc index.
1448 *
1449 * Returns:
1450 * 0 on success otherwise negative error code
1451 */
1452 static int vmw_kms_check_display_memory(struct drm_device *dev,
1453 uint32_t num_rects,
1454 struct drm_rect *rects)
1455 {
1456 struct vmw_private *dev_priv = vmw_priv(dev);
1457 struct drm_rect bounding_box = {0};
1458 u64 total_pixels = 0, pixel_mem, bb_mem;
1459 int i;
1460
1461 for (i = 0; i < num_rects; i++) {
1462 /*
1463 * For STDU only individual screen (screen target) is limited by
1464 * SCREENTARGET_MAX_WIDTH/HEIGHT registers.
1465 */
1466 if (dev_priv->active_display_unit == vmw_du_screen_target &&
1467 (drm_rect_width(&rects[i]) > dev_priv->stdu_max_width ||
1468 drm_rect_height(&rects[i]) > dev_priv->stdu_max_height)) {
1469 VMW_DEBUG_KMS("Screen size not supported.\n");
1470 return -EINVAL;
1471 }
1472
1473 /* Bounding box upper left is at (0,0). */
1474 if (rects[i].x2 > bounding_box.x2)
1475 bounding_box.x2 = rects[i].x2;
1476
1477 if (rects[i].y2 > bounding_box.y2)
1478 bounding_box.y2 = rects[i].y2;
1479
1480 total_pixels += (u64) drm_rect_width(&rects[i]) *
1481 (u64) drm_rect_height(&rects[i]);
1482 }
1483
1484 /* Virtual svga device primary limits are always in 32-bpp. */
1485 pixel_mem = total_pixels * 4;
1486
1487 /*
1488 * For HV10 and below prim_bb_mem is vram size. When
1489 * SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM is not present vram size is
1490 * limit on primary bounding box
1491 */
1492 if (pixel_mem > dev_priv->prim_bb_mem) {
1493 VMW_DEBUG_KMS("Combined output size too large.\n");
1494 return -EINVAL;
1495 }
1496
1497 /* SVGA_CAP_NO_BB_RESTRICTION is available for STDU only. */
1498 if (dev_priv->active_display_unit != vmw_du_screen_target ||
1499 !(dev_priv->capabilities & SVGA_CAP_NO_BB_RESTRICTION)) {
1500 bb_mem = (u64) bounding_box.x2 * bounding_box.y2 * 4;
1501
1502 if (bb_mem > dev_priv->prim_bb_mem) {
1503 VMW_DEBUG_KMS("Topology is beyond supported limits.\n");
1504 return -EINVAL;
1505 }
1506 }
1507
1508 return 0;
1509 }
1510
1511 /**
1512 * vmw_crtc_state_and_lock - Return new or current crtc state with locked
1513 * crtc mutex
1514 * @state: The atomic state pointer containing the new atomic state
1515 * @crtc: The crtc
1516 *
1517 * This function returns the new crtc state if it's part of the state update.
1518 * Otherwise returns the current crtc state. It also makes sure that the
1519 * crtc mutex is locked.
1520 *
1521 * Returns: A valid crtc state pointer or NULL. It may also return a
1522 * pointer error, in particular -EDEADLK if locking needs to be rerun.
1523 */
1524 static struct drm_crtc_state *
1525 vmw_crtc_state_and_lock(struct drm_atomic_state *state, struct drm_crtc *crtc)
1526 {
1527 struct drm_crtc_state *crtc_state;
1528
1529 crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
1530 if (crtc_state) {
1531 lockdep_assert_held(&crtc->mutex.mutex.base);
1532 } else {
1533 int ret = drm_modeset_lock(&crtc->mutex, state->acquire_ctx);
1534
1535 if (ret != 0 && ret != -EALREADY)
1536 return ERR_PTR(ret);
1537
1538 crtc_state = crtc->state;
1539 }
1540
1541 return crtc_state;
1542 }
1543
1544 /**
1545 * vmw_kms_check_implicit - Verify that all implicit display units scan out
1546 * from the same fb after the new state is committed.
1547 * @dev: The drm_device.
1548 * @state: The new state to be checked.
1549 *
1550 * Returns:
1551 * Zero on success,
1552 * -EINVAL on invalid state,
1553 * -EDEADLK if modeset locking needs to be rerun.
1554 */
1555 static int vmw_kms_check_implicit(struct drm_device *dev,
1556 struct drm_atomic_state *state)
1557 {
1558 struct drm_framebuffer *implicit_fb = NULL;
1559 struct drm_crtc *crtc;
1560 struct drm_crtc_state *crtc_state;
1561 struct drm_plane_state *plane_state;
1562
1563 drm_for_each_crtc(crtc, dev) {
1564 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1565
1566 if (!du->is_implicit)
1567 continue;
1568
1569 crtc_state = vmw_crtc_state_and_lock(state, crtc);
1570 if (IS_ERR(crtc_state))
1571 return PTR_ERR(crtc_state);
1572
1573 if (!crtc_state || !crtc_state->enable)
1574 continue;
1575
1576 /*
1577 * Can't move primary planes across crtcs, so this is OK.
1578 * It also means we don't need to take the plane mutex.
1579 */
1580 plane_state = du->primary.state;
1581 if (plane_state->crtc != crtc)
1582 continue;
1583
1584 if (!implicit_fb)
1585 implicit_fb = plane_state->fb;
1586 else if (implicit_fb != plane_state->fb)
1587 return -EINVAL;
1588 }
1589
1590 return 0;
1591 }
1592
1593 /**
1594 * vmw_kms_check_topology - Validates topology in drm_atomic_state
1595 * @dev: DRM device
1596 * @state: the driver state object
1597 *
1598 * Returns:
1599 * 0 on success otherwise negative error code
1600 */
1601 static int vmw_kms_check_topology(struct drm_device *dev,
1602 struct drm_atomic_state *state)
1603 {
1604 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
1605 struct drm_rect *rects;
1606 struct drm_crtc *crtc;
1607 uint32_t i;
1608 int ret = 0;
1609
1610 rects = kcalloc(dev->mode_config.num_crtc, sizeof(struct drm_rect),
1611 GFP_KERNEL);
1612 if (!rects)
1613 return -ENOMEM;
1614
1615 drm_for_each_crtc(crtc, dev) {
1616 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1617 struct drm_crtc_state *crtc_state;
1618
1619 i = drm_crtc_index(crtc);
1620
1621 crtc_state = vmw_crtc_state_and_lock(state, crtc);
1622 if (IS_ERR(crtc_state)) {
1623 ret = PTR_ERR(crtc_state);
1624 goto clean;
1625 }
1626
1627 if (!crtc_state)
1628 continue;
1629
1630 if (crtc_state->enable) {
1631 rects[i].x1 = du->gui_x;
1632 rects[i].y1 = du->gui_y;
1633 rects[i].x2 = du->gui_x + crtc_state->mode.hdisplay;
1634 rects[i].y2 = du->gui_y + crtc_state->mode.vdisplay;
1635 } else {
1636 rects[i].x1 = 0;
1637 rects[i].y1 = 0;
1638 rects[i].x2 = 0;
1639 rects[i].y2 = 0;
1640 }
1641 }
1642
1643 /* Determine change to topology due to new atomic state */
1644 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
1645 new_crtc_state, i) {
1646 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1647 struct drm_connector *connector;
1648 struct drm_connector_state *conn_state;
1649 struct vmw_connector_state *vmw_conn_state;
1650
1651 if (!du->pref_active && new_crtc_state->enable) {
1652 VMW_DEBUG_KMS("Enabling a disabled display unit\n");
1653 ret = -EINVAL;
1654 goto clean;
1655 }
1656
1657 /*
1658 * For vmwgfx each crtc has only one connector attached and it
1659 * is not changed so don't really need to check the
1660 * crtc->connector_mask and iterate over it.
1661 */
1662 connector = &du->connector;
1663 conn_state = drm_atomic_get_connector_state(state, connector);
1664 if (IS_ERR(conn_state)) {
1665 ret = PTR_ERR(conn_state);
1666 goto clean;
1667 }
1668
1669 vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
1670 vmw_conn_state->gui_x = du->gui_x;
1671 vmw_conn_state->gui_y = du->gui_y;
1672 }
1673
1674 ret = vmw_kms_check_display_memory(dev, dev->mode_config.num_crtc,
1675 rects);
1676
1677 clean:
1678 kfree(rects);
1679 return ret;
1680 }
1681
1682 /**
1683 * vmw_kms_atomic_check_modeset- validate state object for modeset changes
1684 *
1685 * @dev: DRM device
1686 * @state: the driver state object
1687 *
1688 * This is a simple wrapper around drm_atomic_helper_check_modeset() for
1689 * us to assign a value to mode->crtc_clock so that
1690 * drm_calc_timestamping_constants() won't throw an error message
1691 *
1692 * Returns:
1693 * Zero for success or -errno
1694 */
1695 static int
1696 vmw_kms_atomic_check_modeset(struct drm_device *dev,
1697 struct drm_atomic_state *state)
1698 {
1699 struct drm_crtc *crtc;
1700 struct drm_crtc_state *crtc_state;
1701 bool need_modeset = false;
1702 int i, ret;
1703
1704 ret = drm_atomic_helper_check(dev, state);
1705 if (ret)
1706 return ret;
1707
1708 ret = vmw_kms_check_implicit(dev, state);
1709 if (ret) {
1710 VMW_DEBUG_KMS("Invalid implicit state\n");
1711 return ret;
1712 }
1713
1714 for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
1715 if (drm_atomic_crtc_needs_modeset(crtc_state))
1716 need_modeset = true;
1717 }
1718
1719 if (need_modeset)
1720 return vmw_kms_check_topology(dev, state);
1721
1722 return ret;
1723 }
1724
1725 static const struct drm_mode_config_funcs vmw_kms_funcs = {
1726 .fb_create = vmw_kms_fb_create,
1727 .atomic_check = vmw_kms_atomic_check_modeset,
1728 .atomic_commit = drm_atomic_helper_commit,
1729 };
1730
1731 static int vmw_kms_generic_present(struct vmw_private *dev_priv,
1732 struct drm_file *file_priv,
1733 struct vmw_framebuffer *vfb,
1734 struct vmw_surface *surface,
1735 uint32_t sid,
1736 int32_t destX, int32_t destY,
1737 struct drm_vmw_rect *clips,
1738 uint32_t num_clips)
1739 {
1740 return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips,
1741 &surface->res, destX, destY,
1742 num_clips, 1, NULL, NULL);
1743 }
1744
1745
1746 int vmw_kms_present(struct vmw_private *dev_priv,
1747 struct drm_file *file_priv,
1748 struct vmw_framebuffer *vfb,
1749 struct vmw_surface *surface,
1750 uint32_t sid,
1751 int32_t destX, int32_t destY,
1752 struct drm_vmw_rect *clips,
1753 uint32_t num_clips)
1754 {
1755 int ret;
1756
1757 switch (dev_priv->active_display_unit) {
1758 case vmw_du_screen_target:
1759 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips,
1760 &surface->res, destX, destY,
1761 num_clips, 1, NULL, NULL);
1762 break;
1763 case vmw_du_screen_object:
1764 ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface,
1765 sid, destX, destY, clips,
1766 num_clips);
1767 break;
1768 default:
1769 WARN_ONCE(true,
1770 "Present called with invalid display system.\n");
1771 ret = -ENOSYS;
1772 break;
1773 }
1774 if (ret)
1775 return ret;
1776
1777 vmw_fifo_flush(dev_priv, false);
1778
1779 return 0;
1780 }
1781
1782 static void
1783 vmw_kms_create_hotplug_mode_update_property(struct vmw_private *dev_priv)
1784 {
1785 if (dev_priv->hotplug_mode_update_property)
1786 return;
1787
1788 dev_priv->hotplug_mode_update_property =
1789 drm_property_create_range(dev_priv->dev,
1790 DRM_MODE_PROP_IMMUTABLE,
1791 "hotplug_mode_update", 0, 1);
1792
1793 if (!dev_priv->hotplug_mode_update_property)
1794 return;
1795
1796 }
1797
1798 int vmw_kms_init(struct vmw_private *dev_priv)
1799 {
1800 struct drm_device *dev = dev_priv->dev;
1801 int ret;
1802
1803 drm_mode_config_init(dev);
1804 dev->mode_config.funcs = &vmw_kms_funcs;
1805 dev->mode_config.min_width = 1;
1806 dev->mode_config.min_height = 1;
1807 dev->mode_config.max_width = dev_priv->texture_max_width;
1808 dev->mode_config.max_height = dev_priv->texture_max_height;
1809
1810 drm_mode_create_suggested_offset_properties(dev);
1811 vmw_kms_create_hotplug_mode_update_property(dev_priv);
1812
1813 ret = vmw_kms_stdu_init_display(dev_priv);
1814 if (ret) {
1815 ret = vmw_kms_sou_init_display(dev_priv);
1816 if (ret) /* Fallback */
1817 ret = vmw_kms_ldu_init_display(dev_priv);
1818 }
1819
1820 return ret;
1821 }
1822
1823 int vmw_kms_close(struct vmw_private *dev_priv)
1824 {
1825 int ret = 0;
1826
1827 /*
1828 * Docs says we should take the lock before calling this function
1829 * but since it destroys encoders and our destructor calls
1830 * drm_encoder_cleanup which takes the lock we deadlock.
1831 */
1832 drm_mode_config_cleanup(dev_priv->dev);
1833 if (dev_priv->active_display_unit == vmw_du_legacy)
1834 ret = vmw_kms_ldu_close_display(dev_priv);
1835
1836 return ret;
1837 }
1838
1839 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1840 struct drm_file *file_priv)
1841 {
1842 struct drm_vmw_cursor_bypass_arg *arg = data;
1843 struct vmw_display_unit *du;
1844 struct drm_crtc *crtc;
1845 int ret = 0;
1846
1847
1848 mutex_lock(&dev->mode_config.mutex);
1849 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1850
1851 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1852 du = vmw_crtc_to_du(crtc);
1853 du->hotspot_x = arg->xhot;
1854 du->hotspot_y = arg->yhot;
1855 }
1856
1857 mutex_unlock(&dev->mode_config.mutex);
1858 return 0;
1859 }
1860
1861 crtc = drm_crtc_find(dev, file_priv, arg->crtc_id);
1862 if (!crtc) {
1863 ret = -ENOENT;
1864 goto out;
1865 }
1866
1867 du = vmw_crtc_to_du(crtc);
1868
1869 du->hotspot_x = arg->xhot;
1870 du->hotspot_y = arg->yhot;
1871
1872 out:
1873 mutex_unlock(&dev->mode_config.mutex);
1874
1875 return ret;
1876 }
1877
1878 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1879 unsigned width, unsigned height, unsigned pitch,
1880 unsigned bpp, unsigned depth)
1881 {
1882 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1883 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1884 else if (vmw_fifo_have_pitchlock(vmw_priv))
1885 vmw_mmio_write(pitch, vmw_priv->mmio_virt +
1886 SVGA_FIFO_PITCHLOCK);
1887 vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1888 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1889 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1890
1891 if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1892 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1893 depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1894 return -EINVAL;
1895 }
1896
1897 return 0;
1898 }
1899
1900 int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1901 {
1902 struct vmw_vga_topology_state *save;
1903 uint32_t i;
1904
1905 vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1906 vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1907 vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1908 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1909 vmw_priv->vga_pitchlock =
1910 vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1911 else if (vmw_fifo_have_pitchlock(vmw_priv))
1912 vmw_priv->vga_pitchlock = vmw_mmio_read(vmw_priv->mmio_virt +
1913 SVGA_FIFO_PITCHLOCK);
1914
1915 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1916 return 0;
1917
1918 vmw_priv->num_displays = vmw_read(vmw_priv,
1919 SVGA_REG_NUM_GUEST_DISPLAYS);
1920
1921 if (vmw_priv->num_displays == 0)
1922 vmw_priv->num_displays = 1;
1923
1924 for (i = 0; i < vmw_priv->num_displays; ++i) {
1925 save = &vmw_priv->vga_save[i];
1926 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1927 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1928 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1929 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1930 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1931 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1932 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1933 if (i == 0 && vmw_priv->num_displays == 1 &&
1934 save->width == 0 && save->height == 0) {
1935
1936 /*
1937 * It should be fairly safe to assume that these
1938 * values are uninitialized.
1939 */
1940
1941 save->width = vmw_priv->vga_width - save->pos_x;
1942 save->height = vmw_priv->vga_height - save->pos_y;
1943 }
1944 }
1945
1946 return 0;
1947 }
1948
1949 int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1950 {
1951 struct vmw_vga_topology_state *save;
1952 uint32_t i;
1953
1954 vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1955 vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1956 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1957 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1958 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1959 vmw_priv->vga_pitchlock);
1960 else if (vmw_fifo_have_pitchlock(vmw_priv))
1961 vmw_mmio_write(vmw_priv->vga_pitchlock,
1962 vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1963
1964 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1965 return 0;
1966
1967 for (i = 0; i < vmw_priv->num_displays; ++i) {
1968 save = &vmw_priv->vga_save[i];
1969 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1970 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1971 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1972 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1973 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1974 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1975 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1976 }
1977
1978 return 0;
1979 }
1980
1981 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1982 uint32_t pitch,
1983 uint32_t height)
1984 {
1985 return ((u64) pitch * (u64) height) < (u64)
1986 ((dev_priv->active_display_unit == vmw_du_screen_target) ?
1987 dev_priv->prim_bb_mem : dev_priv->vram_size);
1988 }
1989
1990
1991 /**
1992 * Function called by DRM code called with vbl_lock held.
1993 */
1994 u32 vmw_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
1995 {
1996 return 0;
1997 }
1998
1999 /**
2000 * Function called by DRM code called with vbl_lock held.
2001 */
2002 int vmw_enable_vblank(struct drm_device *dev, unsigned int pipe)
2003 {
2004 return -EINVAL;
2005 }
2006
2007 /**
2008 * Function called by DRM code called with vbl_lock held.
2009 */
2010 void vmw_disable_vblank(struct drm_device *dev, unsigned int pipe)
2011 {
2012 }
2013
2014 /**
2015 * vmw_du_update_layout - Update the display unit with topology from resolution
2016 * plugin and generate DRM uevent
2017 * @dev_priv: device private
2018 * @num_rects: number of drm_rect in rects
2019 * @rects: toplogy to update
2020 */
2021 static int vmw_du_update_layout(struct vmw_private *dev_priv,
2022 unsigned int num_rects, struct drm_rect *rects)
2023 {
2024 struct drm_device *dev = dev_priv->dev;
2025 struct vmw_display_unit *du;
2026 struct drm_connector *con;
2027 struct drm_connector_list_iter conn_iter;
2028 struct drm_modeset_acquire_ctx ctx;
2029 struct drm_crtc *crtc;
2030 int ret;
2031
2032 /* Currently gui_x/y is protected with the crtc mutex */
2033 mutex_lock(&dev->mode_config.mutex);
2034 drm_modeset_acquire_init(&ctx, 0);
2035 retry:
2036 drm_for_each_crtc(crtc, dev) {
2037 ret = drm_modeset_lock(&crtc->mutex, &ctx);
2038 if (ret < 0) {
2039 if (ret == -EDEADLK) {
2040 drm_modeset_backoff(&ctx);
2041 goto retry;
2042 }
2043 goto out_fini;
2044 }
2045 }
2046
2047 drm_connector_list_iter_begin(dev, &conn_iter);
2048 drm_for_each_connector_iter(con, &conn_iter) {
2049 du = vmw_connector_to_du(con);
2050 if (num_rects > du->unit) {
2051 du->pref_width = drm_rect_width(&rects[du->unit]);
2052 du->pref_height = drm_rect_height(&rects[du->unit]);
2053 du->pref_active = true;
2054 du->gui_x = rects[du->unit].x1;
2055 du->gui_y = rects[du->unit].y1;
2056 } else {
2057 du->pref_width = 800;
2058 du->pref_height = 600;
2059 du->pref_active = false;
2060 du->gui_x = 0;
2061 du->gui_y = 0;
2062 }
2063 }
2064 drm_connector_list_iter_end(&conn_iter);
2065
2066 list_for_each_entry(con, &dev->mode_config.connector_list, head) {
2067 du = vmw_connector_to_du(con);
2068 if (num_rects > du->unit) {
2069 drm_object_property_set_value
2070 (&con->base, dev->mode_config.suggested_x_property,
2071 du->gui_x);
2072 drm_object_property_set_value
2073 (&con->base, dev->mode_config.suggested_y_property,
2074 du->gui_y);
2075 } else {
2076 drm_object_property_set_value
2077 (&con->base, dev->mode_config.suggested_x_property,
2078 0);
2079 drm_object_property_set_value
2080 (&con->base, dev->mode_config.suggested_y_property,
2081 0);
2082 }
2083 con->status = vmw_du_connector_detect(con, true);
2084 }
2085
2086 drm_sysfs_hotplug_event(dev);
2087 out_fini:
2088 drm_modeset_drop_locks(&ctx);
2089 drm_modeset_acquire_fini(&ctx);
2090 mutex_unlock(&dev->mode_config.mutex);
2091
2092 return 0;
2093 }
2094
2095 int vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
2096 u16 *r, u16 *g, u16 *b,
2097 uint32_t size,
2098 struct drm_modeset_acquire_ctx *ctx)
2099 {
2100 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
2101 int i;
2102
2103 for (i = 0; i < size; i++) {
2104 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
2105 r[i], g[i], b[i]);
2106 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
2107 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
2108 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
2109 }
2110
2111 return 0;
2112 }
2113
2114 int vmw_du_connector_dpms(struct drm_connector *connector, int mode)
2115 {
2116 return 0;
2117 }
2118
2119 enum drm_connector_status
2120 vmw_du_connector_detect(struct drm_connector *connector, bool force)
2121 {
2122 uint32_t num_displays;
2123 struct drm_device *dev = connector->dev;
2124 struct vmw_private *dev_priv = vmw_priv(dev);
2125 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2126
2127 num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
2128
2129 return ((vmw_connector_to_du(connector)->unit < num_displays &&
2130 du->pref_active) ?
2131 connector_status_connected : connector_status_disconnected);
2132 }
2133
2134 static struct drm_display_mode vmw_kms_connector_builtin[] = {
2135 /* 640x480@60Hz */
2136 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
2137 752, 800, 0, 480, 489, 492, 525, 0,
2138 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
2139 /* 800x600@60Hz */
2140 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
2141 968, 1056, 0, 600, 601, 605, 628, 0,
2142 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2143 /* 1024x768@60Hz */
2144 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
2145 1184, 1344, 0, 768, 771, 777, 806, 0,
2146 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
2147 /* 1152x864@75Hz */
2148 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
2149 1344, 1600, 0, 864, 865, 868, 900, 0,
2150 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2151 /* 1280x768@60Hz */
2152 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
2153 1472, 1664, 0, 768, 771, 778, 798, 0,
2154 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2155 /* 1280x800@60Hz */
2156 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
2157 1480, 1680, 0, 800, 803, 809, 831, 0,
2158 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
2159 /* 1280x960@60Hz */
2160 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
2161 1488, 1800, 0, 960, 961, 964, 1000, 0,
2162 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2163 /* 1280x1024@60Hz */
2164 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
2165 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
2166 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2167 /* 1360x768@60Hz */
2168 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
2169 1536, 1792, 0, 768, 771, 777, 795, 0,
2170 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2171 /* 1440x1050@60Hz */
2172 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
2173 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
2174 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2175 /* 1440x900@60Hz */
2176 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
2177 1672, 1904, 0, 900, 903, 909, 934, 0,
2178 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2179 /* 1600x1200@60Hz */
2180 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
2181 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
2182 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2183 /* 1680x1050@60Hz */
2184 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
2185 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
2186 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2187 /* 1792x1344@60Hz */
2188 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
2189 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
2190 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2191 /* 1853x1392@60Hz */
2192 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
2193 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
2194 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2195 /* 1920x1200@60Hz */
2196 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
2197 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
2198 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2199 /* 1920x1440@60Hz */
2200 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
2201 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
2202 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2203 /* 2560x1600@60Hz */
2204 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
2205 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
2206 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2207 /* Terminate */
2208 { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
2209 };
2210
2211 /**
2212 * vmw_guess_mode_timing - Provide fake timings for a
2213 * 60Hz vrefresh mode.
2214 *
2215 * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
2216 * members filled in.
2217 */
2218 void vmw_guess_mode_timing(struct drm_display_mode *mode)
2219 {
2220 mode->hsync_start = mode->hdisplay + 50;
2221 mode->hsync_end = mode->hsync_start + 50;
2222 mode->htotal = mode->hsync_end + 50;
2223
2224 mode->vsync_start = mode->vdisplay + 50;
2225 mode->vsync_end = mode->vsync_start + 50;
2226 mode->vtotal = mode->vsync_end + 50;
2227
2228 mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
2229 mode->vrefresh = drm_mode_vrefresh(mode);
2230 }
2231
2232
2233 int vmw_du_connector_fill_modes(struct drm_connector *connector,
2234 uint32_t max_width, uint32_t max_height)
2235 {
2236 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2237 struct drm_device *dev = connector->dev;
2238 struct vmw_private *dev_priv = vmw_priv(dev);
2239 struct drm_display_mode *mode = NULL;
2240 struct drm_display_mode *bmode;
2241 struct drm_display_mode prefmode = { DRM_MODE("preferred",
2242 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
2243 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2244 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
2245 };
2246 int i;
2247 u32 assumed_bpp = 4;
2248
2249 if (dev_priv->assume_16bpp)
2250 assumed_bpp = 2;
2251
2252 max_width = min(max_width, dev_priv->texture_max_width);
2253 max_height = min(max_height, dev_priv->texture_max_height);
2254
2255 /*
2256 * For STDU extra limit for a mode on SVGA_REG_SCREENTARGET_MAX_WIDTH/
2257 * HEIGHT registers.
2258 */
2259 if (dev_priv->active_display_unit == vmw_du_screen_target) {
2260 max_width = min(max_width, dev_priv->stdu_max_width);
2261 max_height = min(max_height, dev_priv->stdu_max_height);
2262 }
2263
2264 /* Add preferred mode */
2265 mode = drm_mode_duplicate(dev, &prefmode);
2266 if (!mode)
2267 return 0;
2268 mode->hdisplay = du->pref_width;
2269 mode->vdisplay = du->pref_height;
2270 vmw_guess_mode_timing(mode);
2271
2272 if (vmw_kms_validate_mode_vram(dev_priv,
2273 mode->hdisplay * assumed_bpp,
2274 mode->vdisplay)) {
2275 drm_mode_probed_add(connector, mode);
2276 } else {
2277 drm_mode_destroy(dev, mode);
2278 mode = NULL;
2279 }
2280
2281 if (du->pref_mode) {
2282 list_del_init(&du->pref_mode->head);
2283 drm_mode_destroy(dev, du->pref_mode);
2284 }
2285
2286 /* mode might be null here, this is intended */
2287 du->pref_mode = mode;
2288
2289 for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
2290 bmode = &vmw_kms_connector_builtin[i];
2291 if (bmode->hdisplay > max_width ||
2292 bmode->vdisplay > max_height)
2293 continue;
2294
2295 if (!vmw_kms_validate_mode_vram(dev_priv,
2296 bmode->hdisplay * assumed_bpp,
2297 bmode->vdisplay))
2298 continue;
2299
2300 mode = drm_mode_duplicate(dev, bmode);
2301 if (!mode)
2302 return 0;
2303 mode->vrefresh = drm_mode_vrefresh(mode);
2304
2305 drm_mode_probed_add(connector, mode);
2306 }
2307
2308 drm_connector_list_update(connector);
2309 /* Move the prefered mode first, help apps pick the right mode. */
2310 drm_mode_sort(&connector->modes);
2311
2312 return 1;
2313 }
2314
2315 /**
2316 * vmw_kms_update_layout_ioctl - Handler for DRM_VMW_UPDATE_LAYOUT ioctl
2317 * @dev: drm device for the ioctl
2318 * @data: data pointer for the ioctl
2319 * @file_priv: drm file for the ioctl call
2320 *
2321 * Update preferred topology of display unit as per ioctl request. The topology
2322 * is expressed as array of drm_vmw_rect.
2323 * e.g.
2324 * [0 0 640 480] [640 0 800 600] [0 480 640 480]
2325 *
2326 * NOTE:
2327 * The x and y offset (upper left) in drm_vmw_rect cannot be less than 0. Beside
2328 * device limit on topology, x + w and y + h (lower right) cannot be greater
2329 * than INT_MAX. So topology beyond these limits will return with error.
2330 *
2331 * Returns:
2332 * Zero on success, negative errno on failure.
2333 */
2334 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
2335 struct drm_file *file_priv)
2336 {
2337 struct vmw_private *dev_priv = vmw_priv(dev);
2338 struct drm_mode_config *mode_config = &dev->mode_config;
2339 struct drm_vmw_update_layout_arg *arg =
2340 (struct drm_vmw_update_layout_arg *)data;
2341 void __user *user_rects;
2342 struct drm_vmw_rect *rects;
2343 struct drm_rect *drm_rects;
2344 unsigned rects_size;
2345 int ret, i;
2346
2347 if (!arg->num_outputs) {
2348 struct drm_rect def_rect = {0, 0, 800, 600};
2349 VMW_DEBUG_KMS("Default layout x1 = %d y1 = %d x2 = %d y2 = %d\n",
2350 def_rect.x1, def_rect.y1,
2351 def_rect.x2, def_rect.y2);
2352 vmw_du_update_layout(dev_priv, 1, &def_rect);
2353 return 0;
2354 }
2355
2356 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2357 rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2358 GFP_KERNEL);
2359 if (unlikely(!rects))
2360 return -ENOMEM;
2361
2362 user_rects = (void __user *)(unsigned long)arg->rects;
2363 ret = copy_from_user(rects, user_rects, rects_size);
2364 if (unlikely(ret != 0)) {
2365 DRM_ERROR("Failed to get rects.\n");
2366 ret = -EFAULT;
2367 goto out_free;
2368 }
2369
2370 drm_rects = (struct drm_rect *)rects;
2371
2372 VMW_DEBUG_KMS("Layout count = %u\n", arg->num_outputs);
2373 for (i = 0; i < arg->num_outputs; i++) {
2374 struct drm_vmw_rect curr_rect;
2375
2376 /* Verify user-space for overflow as kernel use drm_rect */
2377 if ((rects[i].x + rects[i].w > INT_MAX) ||
2378 (rects[i].y + rects[i].h > INT_MAX)) {
2379 ret = -ERANGE;
2380 goto out_free;
2381 }
2382
2383 curr_rect = rects[i];
2384 drm_rects[i].x1 = curr_rect.x;
2385 drm_rects[i].y1 = curr_rect.y;
2386 drm_rects[i].x2 = curr_rect.x + curr_rect.w;
2387 drm_rects[i].y2 = curr_rect.y + curr_rect.h;
2388
2389 VMW_DEBUG_KMS(" x1 = %d y1 = %d x2 = %d y2 = %d\n",
2390 drm_rects[i].x1, drm_rects[i].y1,
2391 drm_rects[i].x2, drm_rects[i].y2);
2392
2393 /*
2394 * Currently this check is limiting the topology within
2395 * mode_config->max (which actually is max texture size
2396 * supported by virtual device). This limit is here to address
2397 * window managers that create a big framebuffer for whole
2398 * topology.
2399 */
2400 if (drm_rects[i].x1 < 0 || drm_rects[i].y1 < 0 ||
2401 drm_rects[i].x2 > mode_config->max_width ||
2402 drm_rects[i].y2 > mode_config->max_height) {
2403 VMW_DEBUG_KMS("Invalid layout %d %d %d %d\n",
2404 drm_rects[i].x1, drm_rects[i].y1,
2405 drm_rects[i].x2, drm_rects[i].y2);
2406 ret = -EINVAL;
2407 goto out_free;
2408 }
2409 }
2410
2411 ret = vmw_kms_check_display_memory(dev, arg->num_outputs, drm_rects);
2412
2413 if (ret == 0)
2414 vmw_du_update_layout(dev_priv, arg->num_outputs, drm_rects);
2415
2416 out_free:
2417 kfree(rects);
2418 return ret;
2419 }
2420
2421 /**
2422 * vmw_kms_helper_dirty - Helper to build commands and perform actions based
2423 * on a set of cliprects and a set of display units.
2424 *
2425 * @dev_priv: Pointer to a device private structure.
2426 * @framebuffer: Pointer to the framebuffer on which to perform the actions.
2427 * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL.
2428 * Cliprects are given in framebuffer coordinates.
2429 * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must
2430 * be NULL. Cliprects are given in source coordinates.
2431 * @dest_x: X coordinate offset for the crtc / destination clip rects.
2432 * @dest_y: Y coordinate offset for the crtc / destination clip rects.
2433 * @num_clips: Number of cliprects in the @clips or @vclips array.
2434 * @increment: Integer with which to increment the clip counter when looping.
2435 * Used to skip a predetermined number of clip rects.
2436 * @dirty: Closure structure. See the description of struct vmw_kms_dirty.
2437 */
2438 int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
2439 struct vmw_framebuffer *framebuffer,
2440 const struct drm_clip_rect *clips,
2441 const struct drm_vmw_rect *vclips,
2442 s32 dest_x, s32 dest_y,
2443 int num_clips,
2444 int increment,
2445 struct vmw_kms_dirty *dirty)
2446 {
2447 struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
2448 struct drm_crtc *crtc;
2449 u32 num_units = 0;
2450 u32 i, k;
2451
2452 dirty->dev_priv = dev_priv;
2453
2454 /* If crtc is passed, no need to iterate over other display units */
2455 if (dirty->crtc) {
2456 units[num_units++] = vmw_crtc_to_du(dirty->crtc);
2457 } else {
2458 list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list,
2459 head) {
2460 struct drm_plane *plane = crtc->primary;
2461
2462 if (plane->state->fb == &framebuffer->base)
2463 units[num_units++] = vmw_crtc_to_du(crtc);
2464 }
2465 }
2466
2467 for (k = 0; k < num_units; k++) {
2468 struct vmw_display_unit *unit = units[k];
2469 s32 crtc_x = unit->crtc.x;
2470 s32 crtc_y = unit->crtc.y;
2471 s32 crtc_width = unit->crtc.mode.hdisplay;
2472 s32 crtc_height = unit->crtc.mode.vdisplay;
2473 const struct drm_clip_rect *clips_ptr = clips;
2474 const struct drm_vmw_rect *vclips_ptr = vclips;
2475
2476 dirty->unit = unit;
2477 if (dirty->fifo_reserve_size > 0) {
2478 dirty->cmd = VMW_FIFO_RESERVE(dev_priv,
2479 dirty->fifo_reserve_size);
2480 if (!dirty->cmd)
2481 return -ENOMEM;
2482
2483 memset(dirty->cmd, 0, dirty->fifo_reserve_size);
2484 }
2485 dirty->num_hits = 0;
2486 for (i = 0; i < num_clips; i++, clips_ptr += increment,
2487 vclips_ptr += increment) {
2488 s32 clip_left;
2489 s32 clip_top;
2490
2491 /*
2492 * Select clip array type. Note that integer type
2493 * in @clips is unsigned short, whereas in @vclips
2494 * it's 32-bit.
2495 */
2496 if (clips) {
2497 dirty->fb_x = (s32) clips_ptr->x1;
2498 dirty->fb_y = (s32) clips_ptr->y1;
2499 dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x -
2500 crtc_x;
2501 dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y -
2502 crtc_y;
2503 } else {
2504 dirty->fb_x = vclips_ptr->x;
2505 dirty->fb_y = vclips_ptr->y;
2506 dirty->unit_x2 = dirty->fb_x + vclips_ptr->w +
2507 dest_x - crtc_x;
2508 dirty->unit_y2 = dirty->fb_y + vclips_ptr->h +
2509 dest_y - crtc_y;
2510 }
2511
2512 dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x;
2513 dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y;
2514
2515 /* Skip this clip if it's outside the crtc region */
2516 if (dirty->unit_x1 >= crtc_width ||
2517 dirty->unit_y1 >= crtc_height ||
2518 dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0)
2519 continue;
2520
2521 /* Clip right and bottom to crtc limits */
2522 dirty->unit_x2 = min_t(s32, dirty->unit_x2,
2523 crtc_width);
2524 dirty->unit_y2 = min_t(s32, dirty->unit_y2,
2525 crtc_height);
2526
2527 /* Clip left and top to crtc limits */
2528 clip_left = min_t(s32, dirty->unit_x1, 0);
2529 clip_top = min_t(s32, dirty->unit_y1, 0);
2530 dirty->unit_x1 -= clip_left;
2531 dirty->unit_y1 -= clip_top;
2532 dirty->fb_x -= clip_left;
2533 dirty->fb_y -= clip_top;
2534
2535 dirty->clip(dirty);
2536 }
2537
2538 dirty->fifo_commit(dirty);
2539 }
2540
2541 return 0;
2542 }
2543
2544 /**
2545 * vmw_kms_helper_validation_finish - Helper for post KMS command submission
2546 * cleanup and fencing
2547 * @dev_priv: Pointer to the device-private struct
2548 * @file_priv: Pointer identifying the client when user-space fencing is used
2549 * @ctx: Pointer to the validation context
2550 * @out_fence: If non-NULL, returned refcounted fence-pointer
2551 * @user_fence_rep: If non-NULL, pointer to user-space address area
2552 * in which to copy user-space fence info
2553 */
2554 void vmw_kms_helper_validation_finish(struct vmw_private *dev_priv,
2555 struct drm_file *file_priv,
2556 struct vmw_validation_context *ctx,
2557 struct vmw_fence_obj **out_fence,
2558 struct drm_vmw_fence_rep __user *
2559 user_fence_rep)
2560 {
2561 struct vmw_fence_obj *fence = NULL;
2562 uint32_t handle = 0;
2563 int ret = 0;
2564
2565 if (file_priv || user_fence_rep || vmw_validation_has_bos(ctx) ||
2566 out_fence)
2567 ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
2568 file_priv ? &handle : NULL);
2569 vmw_validation_done(ctx, fence);
2570 if (file_priv)
2571 vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv),
2572 ret, user_fence_rep, fence,
2573 handle, -1, NULL);
2574 if (out_fence)
2575 *out_fence = fence;
2576 else
2577 vmw_fence_obj_unreference(&fence);
2578 }
2579
2580 /**
2581 * vmw_kms_update_proxy - Helper function to update a proxy surface from
2582 * its backing MOB.
2583 *
2584 * @res: Pointer to the surface resource
2585 * @clips: Clip rects in framebuffer (surface) space.
2586 * @num_clips: Number of clips in @clips.
2587 * @increment: Integer with which to increment the clip counter when looping.
2588 * Used to skip a predetermined number of clip rects.
2589 *
2590 * This function makes sure the proxy surface is updated from its backing MOB
2591 * using the region given by @clips. The surface resource @res and its backing
2592 * MOB needs to be reserved and validated on call.
2593 */
2594 int vmw_kms_update_proxy(struct vmw_resource *res,
2595 const struct drm_clip_rect *clips,
2596 unsigned num_clips,
2597 int increment)
2598 {
2599 struct vmw_private *dev_priv = res->dev_priv;
2600 struct drm_vmw_size *size = &vmw_res_to_srf(res)->base_size;
2601 struct {
2602 SVGA3dCmdHeader header;
2603 SVGA3dCmdUpdateGBImage body;
2604 } *cmd;
2605 SVGA3dBox *box;
2606 size_t copy_size = 0;
2607 int i;
2608
2609 if (!clips)
2610 return 0;
2611
2612 cmd = VMW_FIFO_RESERVE(dev_priv, sizeof(*cmd) * num_clips);
2613 if (!cmd)
2614 return -ENOMEM;
2615
2616 for (i = 0; i < num_clips; ++i, clips += increment, ++cmd) {
2617 box = &cmd->body.box;
2618
2619 cmd->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
2620 cmd->header.size = sizeof(cmd->body);
2621 cmd->body.image.sid = res->id;
2622 cmd->body.image.face = 0;
2623 cmd->body.image.mipmap = 0;
2624
2625 if (clips->x1 > size->width || clips->x2 > size->width ||
2626 clips->y1 > size->height || clips->y2 > size->height) {
2627 DRM_ERROR("Invalid clips outsize of framebuffer.\n");
2628 return -EINVAL;
2629 }
2630
2631 box->x = clips->x1;
2632 box->y = clips->y1;
2633 box->z = 0;
2634 box->w = clips->x2 - clips->x1;
2635 box->h = clips->y2 - clips->y1;
2636 box->d = 1;
2637
2638 copy_size += sizeof(*cmd);
2639 }
2640
2641 vmw_fifo_commit(dev_priv, copy_size);
2642
2643 return 0;
2644 }
2645
2646 int vmw_kms_fbdev_init_data(struct vmw_private *dev_priv,
2647 unsigned unit,
2648 u32 max_width,
2649 u32 max_height,
2650 struct drm_connector **p_con,
2651 struct drm_crtc **p_crtc,
2652 struct drm_display_mode **p_mode)
2653 {
2654 struct drm_connector *con;
2655 struct vmw_display_unit *du;
2656 struct drm_display_mode *mode;
2657 int i = 0;
2658 int ret = 0;
2659
2660 mutex_lock(&dev_priv->dev->mode_config.mutex);
2661 list_for_each_entry(con, &dev_priv->dev->mode_config.connector_list,
2662 head) {
2663 if (i == unit)
2664 break;
2665
2666 ++i;
2667 }
2668
2669 if (i != unit) {
2670 DRM_ERROR("Could not find initial display unit.\n");
2671 ret = -EINVAL;
2672 goto out_unlock;
2673 }
2674
2675 if (list_empty(&con->modes))
2676 (void) vmw_du_connector_fill_modes(con, max_width, max_height);
2677
2678 if (list_empty(&con->modes)) {
2679 DRM_ERROR("Could not find initial display mode.\n");
2680 ret = -EINVAL;
2681 goto out_unlock;
2682 }
2683
2684 du = vmw_connector_to_du(con);
2685 *p_con = con;
2686 *p_crtc = &du->crtc;
2687
2688 list_for_each_entry(mode, &con->modes, head) {
2689 if (mode->type & DRM_MODE_TYPE_PREFERRED)
2690 break;
2691 }
2692
2693 if (mode->type & DRM_MODE_TYPE_PREFERRED)
2694 *p_mode = mode;
2695 else {
2696 WARN_ONCE(true, "Could not find initial preferred mode.\n");
2697 *p_mode = list_first_entry(&con->modes,
2698 struct drm_display_mode,
2699 head);
2700 }
2701
2702 out_unlock:
2703 mutex_unlock(&dev_priv->dev->mode_config.mutex);
2704
2705 return ret;
2706 }
2707
2708 /**
2709 * vmw_kms_create_implicit_placement_proparty - Set up the implicit placement
2710 * property.
2711 *
2712 * @dev_priv: Pointer to a device private struct.
2713 *
2714 * Sets up the implicit placement property unless it's already set up.
2715 */
2716 void
2717 vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv)
2718 {
2719 if (dev_priv->implicit_placement_property)
2720 return;
2721
2722 dev_priv->implicit_placement_property =
2723 drm_property_create_range(dev_priv->dev,
2724 DRM_MODE_PROP_IMMUTABLE,
2725 "implicit_placement", 0, 1);
2726 }
2727
2728 /**
2729 * vmw_kms_suspend - Save modesetting state and turn modesetting off.
2730 *
2731 * @dev: Pointer to the drm device
2732 * Return: 0 on success. Negative error code on failure.
2733 */
2734 int vmw_kms_suspend(struct drm_device *dev)
2735 {
2736 struct vmw_private *dev_priv = vmw_priv(dev);
2737
2738 dev_priv->suspend_state = drm_atomic_helper_suspend(dev);
2739 if (IS_ERR(dev_priv->suspend_state)) {
2740 int ret = PTR_ERR(dev_priv->suspend_state);
2741
2742 DRM_ERROR("Failed kms suspend: %d\n", ret);
2743 dev_priv->suspend_state = NULL;
2744
2745 return ret;
2746 }
2747
2748 return 0;
2749 }
2750
2751
2752 /**
2753 * vmw_kms_resume - Re-enable modesetting and restore state
2754 *
2755 * @dev: Pointer to the drm device
2756 * Return: 0 on success. Negative error code on failure.
2757 *
2758 * State is resumed from a previous vmw_kms_suspend(). It's illegal
2759 * to call this function without a previous vmw_kms_suspend().
2760 */
2761 int vmw_kms_resume(struct drm_device *dev)
2762 {
2763 struct vmw_private *dev_priv = vmw_priv(dev);
2764 int ret;
2765
2766 if (WARN_ON(!dev_priv->suspend_state))
2767 return 0;
2768
2769 ret = drm_atomic_helper_resume(dev, dev_priv->suspend_state);
2770 dev_priv->suspend_state = NULL;
2771
2772 return ret;
2773 }
2774
2775 /**
2776 * vmw_kms_lost_device - Notify kms that modesetting capabilities will be lost
2777 *
2778 * @dev: Pointer to the drm device
2779 */
2780 void vmw_kms_lost_device(struct drm_device *dev)
2781 {
2782 drm_atomic_helper_shutdown(dev);
2783 }
2784
2785 /**
2786 * vmw_du_helper_plane_update - Helper to do plane update on a display unit.
2787 * @update: The closure structure.
2788 *
2789 * Call this helper after setting callbacks in &vmw_du_update_plane to do plane
2790 * update on display unit.
2791 *
2792 * Return: 0 on success or a negative error code on failure.
2793 */
2794 int vmw_du_helper_plane_update(struct vmw_du_update_plane *update)
2795 {
2796 struct drm_plane_state *state = update->plane->state;
2797 struct drm_plane_state *old_state = update->old_state;
2798 struct drm_atomic_helper_damage_iter iter;
2799 struct drm_rect clip;
2800 struct drm_rect bb;
2801 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
2802 uint32_t reserved_size = 0;
2803 uint32_t submit_size = 0;
2804 uint32_t curr_size = 0;
2805 uint32_t num_hits = 0;
2806 void *cmd_start;
2807 char *cmd_next;
2808 int ret;
2809
2810 /*
2811 * Iterate in advance to check if really need plane update and find the
2812 * number of clips that actually are in plane src for fifo allocation.
2813 */
2814 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
2815 drm_atomic_for_each_plane_damage(&iter, &clip)
2816 num_hits++;
2817
2818 if (num_hits == 0)
2819 return 0;
2820
2821 if (update->vfb->bo) {
2822 struct vmw_framebuffer_bo *vfbbo =
2823 container_of(update->vfb, typeof(*vfbbo), base);
2824
2825 ret = vmw_validation_add_bo(&val_ctx, vfbbo->buffer, false,
2826 update->cpu_blit);
2827 } else {
2828 struct vmw_framebuffer_surface *vfbs =
2829 container_of(update->vfb, typeof(*vfbs), base);
2830
2831 ret = vmw_validation_add_resource(&val_ctx, &vfbs->surface->res,
2832 0, VMW_RES_DIRTY_NONE, NULL,
2833 NULL);
2834 }
2835
2836 if (ret)
2837 return ret;
2838
2839 ret = vmw_validation_prepare(&val_ctx, update->mutex, update->intr);
2840 if (ret)
2841 goto out_unref;
2842
2843 reserved_size = update->calc_fifo_size(update, num_hits);
2844 cmd_start = VMW_FIFO_RESERVE(update->dev_priv, reserved_size);
2845 if (!cmd_start) {
2846 ret = -ENOMEM;
2847 goto out_revert;
2848 }
2849
2850 cmd_next = cmd_start;
2851
2852 if (update->post_prepare) {
2853 curr_size = update->post_prepare(update, cmd_next);
2854 cmd_next += curr_size;
2855 submit_size += curr_size;
2856 }
2857
2858 if (update->pre_clip) {
2859 curr_size = update->pre_clip(update, cmd_next, num_hits);
2860 cmd_next += curr_size;
2861 submit_size += curr_size;
2862 }
2863
2864 bb.x1 = INT_MAX;
2865 bb.y1 = INT_MAX;
2866 bb.x2 = INT_MIN;
2867 bb.y2 = INT_MIN;
2868
2869 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
2870 drm_atomic_for_each_plane_damage(&iter, &clip) {
2871 uint32_t fb_x = clip.x1;
2872 uint32_t fb_y = clip.y1;
2873
2874 vmw_du_translate_to_crtc(state, &clip);
2875 if (update->clip) {
2876 curr_size = update->clip(update, cmd_next, &clip, fb_x,
2877 fb_y);
2878 cmd_next += curr_size;
2879 submit_size += curr_size;
2880 }
2881 bb.x1 = min_t(int, bb.x1, clip.x1);
2882 bb.y1 = min_t(int, bb.y1, clip.y1);
2883 bb.x2 = max_t(int, bb.x2, clip.x2);
2884 bb.y2 = max_t(int, bb.y2, clip.y2);
2885 }
2886
2887 curr_size = update->post_clip(update, cmd_next, &bb);
2888 submit_size += curr_size;
2889
2890 if (reserved_size < submit_size)
2891 submit_size = 0;
2892
2893 vmw_fifo_commit(update->dev_priv, submit_size);
2894
2895 vmw_kms_helper_validation_finish(update->dev_priv, NULL, &val_ctx,
2896 update->out_fence, NULL);
2897 return ret;
2898
2899 out_revert:
2900 vmw_validation_revert(&val_ctx);
2901
2902 out_unref:
2903 vmw_validation_unref_lists(&val_ctx);
2904 return ret;
2905 }
Linux with added FPC-III support