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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
42void 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
57static 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
91static 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);
121err_unreserve:
122 ttm_bo_unreserve(&bo->base);
123
124 return ret;
125}
126
127
128static 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
144void 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);
226err_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 */
237void 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
253void 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
279void 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
287void 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 */
301void 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 */
329void
330vmw_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 */
347int
348vmw_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
375void
376vmw_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 */
443int 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 */
482int 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
524int 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
554void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
555 struct drm_crtc_state *old_crtc_state)
556{
557}
558
559
560void 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 */
584struct drm_crtc_state *
585vmw_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 */
614void 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 */
645void
646vmw_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 */
662struct drm_plane_state *
663vmw_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 */
698void 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 */
725void
726vmw_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 */
752struct drm_connector_state *
753vmw_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 */
782void 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 */
812void
813vmw_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
826static 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 */
855int 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
880static const struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
881 .destroy = vmw_framebuffer_surface_destroy,
882 .dirty = drm_atomic_helper_dirtyfb,
883};
884
885static 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
969out_err2:
970 vmw_surface_unreference(&surface);
971 kfree(vfbs);
972out_err1:
973 return ret;
974}
975
976/*
977 * Buffer-object framebuffer code
978 */
979
980static 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
993static 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
1043static 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
1059static 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 */
1068static 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
1113static 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 */
1142static 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
1215static 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
1270out_err2:
1271 vmw_bo_unreference(&bo);
1272 kfree(vfbd);
1273out_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 */
1286static bool
1287vmw_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 */
1308struct vmw_framebuffer *
1309vmw_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
1368static 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
1424err_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 */
1452static 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 */
1524static struct drm_crtc_state *
1525vmw_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 */
1555static 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 */
1601static 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
1677clean:
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 */
1695static int
1696vmw_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
1725static 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
1731static 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
1746int 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
1782static void
1783vmw_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
1798int 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
1823int 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
1839int 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
1872out:
1873 mutex_unlock(&dev->mode_config.mutex);
1874
1875 return ret;
1876}
1877
1878int 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
1900int 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
1949int 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
1981bool 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 */
1994u32 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 */
2002int 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 */
2010void 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 */
2021static 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);
2035retry:
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);
2087out_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
2095int 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
2114int vmw_du_connector_dpms(struct drm_connector *connector, int mode)
2115{
2116 return 0;
2117}
2118
2119enum drm_connector_status
2120vmw_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
2134static 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 */
2218void 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
2233int 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 */
2334int 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
2416out_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 */
2438int 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 */
2554void 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 */
2594int 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
2646int 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 */
2716void
2717vmw_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 */
2734int 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 */
2761int 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 */
2780void 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 */
2794int 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
2899out_revert:
2900 vmw_validation_revert(&val_ctx);
2901
2902out_unref:
2903 vmw_validation_unref_lists(&val_ctx);
2904 return ret;
2905}
1// SPDX-License-Identifier: GPL-2.0 OR MIT
2/**************************************************************************
3 *
4 * Copyright (c) 2009-2024 Broadcom. All Rights Reserved. The term
5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
22 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
23 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
24 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
25 * USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28#include "vmwgfx_kms.h"
29
30#include "vmwgfx_bo.h"
31#include "vmwgfx_vkms.h"
32#include "vmw_surface_cache.h"
33
34#include <drm/drm_atomic.h>
35#include <drm/drm_atomic_helper.h>
36#include <drm/drm_damage_helper.h>
37#include <drm/drm_fourcc.h>
38#include <drm/drm_rect.h>
39#include <drm/drm_sysfs.h>
40#include <drm/drm_edid.h>
41
42void vmw_du_init(struct vmw_display_unit *du)
43{
44 vmw_vkms_crtc_init(&du->crtc);
45}
46
47void vmw_du_cleanup(struct vmw_display_unit *du)
48{
49 struct vmw_private *dev_priv = vmw_priv(du->primary.dev);
50
51 vmw_vkms_crtc_cleanup(&du->crtc);
52 drm_plane_cleanup(&du->primary);
53 if (vmw_cmd_supported(dev_priv))
54 drm_plane_cleanup(&du->cursor.base);
55
56 drm_connector_unregister(&du->connector);
57 drm_crtc_cleanup(&du->crtc);
58 drm_encoder_cleanup(&du->encoder);
59 drm_connector_cleanup(&du->connector);
60}
61
62/*
63 * Display Unit Cursor functions
64 */
65
66static int vmw_du_cursor_plane_unmap_cm(struct vmw_plane_state *vps);
67static void vmw_cursor_update_mob(struct vmw_private *dev_priv,
68 struct vmw_plane_state *vps,
69 u32 *image, u32 width, u32 height,
70 u32 hotspotX, u32 hotspotY);
71
72struct vmw_svga_fifo_cmd_define_cursor {
73 u32 cmd;
74 SVGAFifoCmdDefineAlphaCursor cursor;
75};
76
77/**
78 * vmw_send_define_cursor_cmd - queue a define cursor command
79 * @dev_priv: the private driver struct
80 * @image: buffer which holds the cursor image
81 * @width: width of the mouse cursor image
82 * @height: height of the mouse cursor image
83 * @hotspotX: the horizontal position of mouse hotspot
84 * @hotspotY: the vertical position of mouse hotspot
85 */
86static void vmw_send_define_cursor_cmd(struct vmw_private *dev_priv,
87 u32 *image, u32 width, u32 height,
88 u32 hotspotX, u32 hotspotY)
89{
90 struct vmw_svga_fifo_cmd_define_cursor *cmd;
91 const u32 image_size = width * height * sizeof(*image);
92 const u32 cmd_size = sizeof(*cmd) + image_size;
93
94 /* Try to reserve fifocmd space and swallow any failures;
95 such reservations cannot be left unconsumed for long
96 under the risk of clogging other fifocmd users, so
97 we treat reservations separtely from the way we treat
98 other fallible KMS-atomic resources at prepare_fb */
99 cmd = VMW_CMD_RESERVE(dev_priv, cmd_size);
100
101 if (unlikely(!cmd))
102 return;
103
104 memset(cmd, 0, sizeof(*cmd));
105
106 memcpy(&cmd[1], image, image_size);
107
108 cmd->cmd = SVGA_CMD_DEFINE_ALPHA_CURSOR;
109 cmd->cursor.id = 0;
110 cmd->cursor.width = width;
111 cmd->cursor.height = height;
112 cmd->cursor.hotspotX = hotspotX;
113 cmd->cursor.hotspotY = hotspotY;
114
115 vmw_cmd_commit_flush(dev_priv, cmd_size);
116}
117
118/**
119 * vmw_cursor_update_image - update the cursor image on the provided plane
120 * @dev_priv: the private driver struct
121 * @vps: the plane state of the cursor plane
122 * @image: buffer which holds the cursor image
123 * @width: width of the mouse cursor image
124 * @height: height of the mouse cursor image
125 * @hotspotX: the horizontal position of mouse hotspot
126 * @hotspotY: the vertical position of mouse hotspot
127 */
128static void vmw_cursor_update_image(struct vmw_private *dev_priv,
129 struct vmw_plane_state *vps,
130 u32 *image, u32 width, u32 height,
131 u32 hotspotX, u32 hotspotY)
132{
133 if (vps->cursor.bo)
134 vmw_cursor_update_mob(dev_priv, vps, image,
135 vps->base.crtc_w, vps->base.crtc_h,
136 hotspotX, hotspotY);
137
138 else
139 vmw_send_define_cursor_cmd(dev_priv, image, width, height,
140 hotspotX, hotspotY);
141}
142
143
144/**
145 * vmw_cursor_update_mob - Update cursor vis CursorMob mechanism
146 *
147 * Called from inside vmw_du_cursor_plane_atomic_update to actually
148 * make the cursor-image live.
149 *
150 * @dev_priv: device to work with
151 * @vps: the plane state of the cursor plane
152 * @image: cursor source data to fill the MOB with
153 * @width: source data width
154 * @height: source data height
155 * @hotspotX: cursor hotspot x
156 * @hotspotY: cursor hotspot Y
157 */
158static void vmw_cursor_update_mob(struct vmw_private *dev_priv,
159 struct vmw_plane_state *vps,
160 u32 *image, u32 width, u32 height,
161 u32 hotspotX, u32 hotspotY)
162{
163 SVGAGBCursorHeader *header;
164 SVGAGBAlphaCursorHeader *alpha_header;
165 const u32 image_size = width * height * sizeof(*image);
166
167 header = vmw_bo_map_and_cache(vps->cursor.bo);
168 alpha_header = &header->header.alphaHeader;
169
170 memset(header, 0, sizeof(*header));
171
172 header->type = SVGA_ALPHA_CURSOR;
173 header->sizeInBytes = image_size;
174
175 alpha_header->hotspotX = hotspotX;
176 alpha_header->hotspotY = hotspotY;
177 alpha_header->width = width;
178 alpha_header->height = height;
179
180 memcpy(header + 1, image, image_size);
181 vmw_write(dev_priv, SVGA_REG_CURSOR_MOBID,
182 vps->cursor.bo->tbo.resource->start);
183}
184
185
186static u32 vmw_du_cursor_mob_size(u32 w, u32 h)
187{
188 return w * h * sizeof(u32) + sizeof(SVGAGBCursorHeader);
189}
190
191/**
192 * vmw_du_cursor_plane_acquire_image -- Acquire the image data
193 * @vps: cursor plane state
194 */
195static u32 *vmw_du_cursor_plane_acquire_image(struct vmw_plane_state *vps)
196{
197 struct vmw_surface *surf;
198
199 if (vmw_user_object_is_null(&vps->uo))
200 return NULL;
201
202 surf = vmw_user_object_surface(&vps->uo);
203 if (surf && !vmw_user_object_is_mapped(&vps->uo))
204 return surf->snooper.image;
205
206 return vmw_user_object_map(&vps->uo);
207}
208
209static bool vmw_du_cursor_plane_has_changed(struct vmw_plane_state *old_vps,
210 struct vmw_plane_state *new_vps)
211{
212 void *old_image;
213 void *new_image;
214 u32 size;
215 bool changed;
216
217 if (old_vps->base.crtc_w != new_vps->base.crtc_w ||
218 old_vps->base.crtc_h != new_vps->base.crtc_h)
219 return true;
220
221 if (old_vps->cursor.hotspot_x != new_vps->cursor.hotspot_x ||
222 old_vps->cursor.hotspot_y != new_vps->cursor.hotspot_y)
223 return true;
224
225 size = new_vps->base.crtc_w * new_vps->base.crtc_h * sizeof(u32);
226
227 old_image = vmw_du_cursor_plane_acquire_image(old_vps);
228 new_image = vmw_du_cursor_plane_acquire_image(new_vps);
229
230 changed = false;
231 if (old_image && new_image && old_image != new_image)
232 changed = memcmp(old_image, new_image, size) != 0;
233
234 return changed;
235}
236
237static void vmw_du_destroy_cursor_mob(struct vmw_bo **vbo)
238{
239 if (!(*vbo))
240 return;
241
242 ttm_bo_unpin(&(*vbo)->tbo);
243 vmw_bo_unreference(vbo);
244}
245
246static void vmw_du_put_cursor_mob(struct vmw_cursor_plane *vcp,
247 struct vmw_plane_state *vps)
248{
249 u32 i;
250
251 if (!vps->cursor.bo)
252 return;
253
254 vmw_du_cursor_plane_unmap_cm(vps);
255
256 /* Look for a free slot to return this mob to the cache. */
257 for (i = 0; i < ARRAY_SIZE(vcp->cursor_mobs); i++) {
258 if (!vcp->cursor_mobs[i]) {
259 vcp->cursor_mobs[i] = vps->cursor.bo;
260 vps->cursor.bo = NULL;
261 return;
262 }
263 }
264
265 /* Cache is full: See if this mob is bigger than an existing mob. */
266 for (i = 0; i < ARRAY_SIZE(vcp->cursor_mobs); i++) {
267 if (vcp->cursor_mobs[i]->tbo.base.size <
268 vps->cursor.bo->tbo.base.size) {
269 vmw_du_destroy_cursor_mob(&vcp->cursor_mobs[i]);
270 vcp->cursor_mobs[i] = vps->cursor.bo;
271 vps->cursor.bo = NULL;
272 return;
273 }
274 }
275
276 /* Destroy it if it's not worth caching. */
277 vmw_du_destroy_cursor_mob(&vps->cursor.bo);
278}
279
280static int vmw_du_get_cursor_mob(struct vmw_cursor_plane *vcp,
281 struct vmw_plane_state *vps)
282{
283 struct vmw_private *dev_priv = vmw_priv(vcp->base.dev);
284 u32 size = vmw_du_cursor_mob_size(vps->base.crtc_w, vps->base.crtc_h);
285 u32 i;
286 u32 cursor_max_dim, mob_max_size;
287 struct vmw_fence_obj *fence = NULL;
288 int ret;
289
290 if (!dev_priv->has_mob ||
291 (dev_priv->capabilities2 & SVGA_CAP2_CURSOR_MOB) == 0)
292 return -EINVAL;
293
294 mob_max_size = vmw_read(dev_priv, SVGA_REG_MOB_MAX_SIZE);
295 cursor_max_dim = vmw_read(dev_priv, SVGA_REG_CURSOR_MAX_DIMENSION);
296
297 if (size > mob_max_size || vps->base.crtc_w > cursor_max_dim ||
298 vps->base.crtc_h > cursor_max_dim)
299 return -EINVAL;
300
301 if (vps->cursor.bo) {
302 if (vps->cursor.bo->tbo.base.size >= size)
303 return 0;
304 vmw_du_put_cursor_mob(vcp, vps);
305 }
306
307 /* Look for an unused mob in the cache. */
308 for (i = 0; i < ARRAY_SIZE(vcp->cursor_mobs); i++) {
309 if (vcp->cursor_mobs[i] &&
310 vcp->cursor_mobs[i]->tbo.base.size >= size) {
311 vps->cursor.bo = vcp->cursor_mobs[i];
312 vcp->cursor_mobs[i] = NULL;
313 return 0;
314 }
315 }
316 /* Create a new mob if we can't find an existing one. */
317 ret = vmw_bo_create_and_populate(dev_priv, size,
318 VMW_BO_DOMAIN_MOB,
319 &vps->cursor.bo);
320
321 if (ret != 0)
322 return ret;
323
324 /* Fence the mob creation so we are guarateed to have the mob */
325 ret = ttm_bo_reserve(&vps->cursor.bo->tbo, false, false, NULL);
326 if (ret != 0)
327 goto teardown;
328
329 ret = vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL);
330 if (ret != 0) {
331 ttm_bo_unreserve(&vps->cursor.bo->tbo);
332 goto teardown;
333 }
334
335 dma_fence_wait(&fence->base, false);
336 dma_fence_put(&fence->base);
337
338 ttm_bo_unreserve(&vps->cursor.bo->tbo);
339 return 0;
340
341teardown:
342 vmw_du_destroy_cursor_mob(&vps->cursor.bo);
343 return ret;
344}
345
346
347static void vmw_cursor_update_position(struct vmw_private *dev_priv,
348 bool show, int x, int y)
349{
350 const uint32_t svga_cursor_on = show ? SVGA_CURSOR_ON_SHOW
351 : SVGA_CURSOR_ON_HIDE;
352 uint32_t count;
353
354 spin_lock(&dev_priv->cursor_lock);
355 if (dev_priv->capabilities2 & SVGA_CAP2_EXTRA_REGS) {
356 vmw_write(dev_priv, SVGA_REG_CURSOR4_X, x);
357 vmw_write(dev_priv, SVGA_REG_CURSOR4_Y, y);
358 vmw_write(dev_priv, SVGA_REG_CURSOR4_SCREEN_ID, SVGA3D_INVALID_ID);
359 vmw_write(dev_priv, SVGA_REG_CURSOR4_ON, svga_cursor_on);
360 vmw_write(dev_priv, SVGA_REG_CURSOR4_SUBMIT, 1);
361 } else if (vmw_is_cursor_bypass3_enabled(dev_priv)) {
362 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_ON, svga_cursor_on);
363 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_X, x);
364 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_Y, y);
365 count = vmw_fifo_mem_read(dev_priv, SVGA_FIFO_CURSOR_COUNT);
366 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_COUNT, ++count);
367 } else {
368 vmw_write(dev_priv, SVGA_REG_CURSOR_X, x);
369 vmw_write(dev_priv, SVGA_REG_CURSOR_Y, y);
370 vmw_write(dev_priv, SVGA_REG_CURSOR_ON, svga_cursor_on);
371 }
372 spin_unlock(&dev_priv->cursor_lock);
373}
374
375void vmw_kms_cursor_snoop(struct vmw_surface *srf,
376 struct ttm_object_file *tfile,
377 struct ttm_buffer_object *bo,
378 SVGA3dCmdHeader *header)
379{
380 struct ttm_bo_kmap_obj map;
381 unsigned long kmap_offset;
382 unsigned long kmap_num;
383 SVGA3dCopyBox *box;
384 unsigned box_count;
385 void *virtual;
386 bool is_iomem;
387 struct vmw_dma_cmd {
388 SVGA3dCmdHeader header;
389 SVGA3dCmdSurfaceDMA dma;
390 } *cmd;
391 int i, ret;
392 const struct SVGA3dSurfaceDesc *desc =
393 vmw_surface_get_desc(VMW_CURSOR_SNOOP_FORMAT);
394 const u32 image_pitch = VMW_CURSOR_SNOOP_WIDTH * desc->pitchBytesPerBlock;
395
396 cmd = container_of(header, struct vmw_dma_cmd, header);
397
398 /* No snooper installed, nothing to copy */
399 if (!srf->snooper.image)
400 return;
401
402 if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
403 DRM_ERROR("face and mipmap for cursors should never != 0\n");
404 return;
405 }
406
407 if (cmd->header.size < 64) {
408 DRM_ERROR("at least one full copy box must be given\n");
409 return;
410 }
411
412 box = (SVGA3dCopyBox *)&cmd[1];
413 box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
414 sizeof(SVGA3dCopyBox);
415
416 if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
417 box->x != 0 || box->y != 0 || box->z != 0 ||
418 box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
419 box->d != 1 || box_count != 1 ||
420 box->w > VMW_CURSOR_SNOOP_WIDTH || box->h > VMW_CURSOR_SNOOP_HEIGHT) {
421 /* TODO handle none page aligned offsets */
422 /* TODO handle more dst & src != 0 */
423 /* TODO handle more then one copy */
424 DRM_ERROR("Can't snoop dma request for cursor!\n");
425 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
426 box->srcx, box->srcy, box->srcz,
427 box->x, box->y, box->z,
428 box->w, box->h, box->d, box_count,
429 cmd->dma.guest.ptr.offset);
430 return;
431 }
432
433 kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
434 kmap_num = (VMW_CURSOR_SNOOP_HEIGHT*image_pitch) >> PAGE_SHIFT;
435
436 ret = ttm_bo_reserve(bo, true, false, NULL);
437 if (unlikely(ret != 0)) {
438 DRM_ERROR("reserve failed\n");
439 return;
440 }
441
442 ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
443 if (unlikely(ret != 0))
444 goto err_unreserve;
445
446 virtual = ttm_kmap_obj_virtual(&map, &is_iomem);
447
448 if (box->w == VMW_CURSOR_SNOOP_WIDTH && cmd->dma.guest.pitch == image_pitch) {
449 memcpy(srf->snooper.image, virtual,
450 VMW_CURSOR_SNOOP_HEIGHT*image_pitch);
451 } else {
452 /* Image is unsigned pointer. */
453 for (i = 0; i < box->h; i++)
454 memcpy(srf->snooper.image + i * image_pitch,
455 virtual + i * cmd->dma.guest.pitch,
456 box->w * desc->pitchBytesPerBlock);
457 }
458
459 srf->snooper.age++;
460
461 ttm_bo_kunmap(&map);
462err_unreserve:
463 ttm_bo_unreserve(bo);
464}
465
466/**
467 * vmw_kms_legacy_hotspot_clear - Clear legacy hotspots
468 *
469 * @dev_priv: Pointer to the device private struct.
470 *
471 * Clears all legacy hotspots.
472 */
473void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv)
474{
475 struct drm_device *dev = &dev_priv->drm;
476 struct vmw_display_unit *du;
477 struct drm_crtc *crtc;
478
479 drm_modeset_lock_all(dev);
480 drm_for_each_crtc(crtc, dev) {
481 du = vmw_crtc_to_du(crtc);
482
483 du->hotspot_x = 0;
484 du->hotspot_y = 0;
485 }
486 drm_modeset_unlock_all(dev);
487}
488
489void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
490{
491 struct drm_device *dev = &dev_priv->drm;
492 struct vmw_display_unit *du;
493 struct drm_crtc *crtc;
494
495 mutex_lock(&dev->mode_config.mutex);
496
497 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
498 du = vmw_crtc_to_du(crtc);
499 if (!du->cursor_surface ||
500 du->cursor_age == du->cursor_surface->snooper.age ||
501 !du->cursor_surface->snooper.image)
502 continue;
503
504 du->cursor_age = du->cursor_surface->snooper.age;
505 vmw_send_define_cursor_cmd(dev_priv,
506 du->cursor_surface->snooper.image,
507 VMW_CURSOR_SNOOP_WIDTH,
508 VMW_CURSOR_SNOOP_HEIGHT,
509 du->hotspot_x + du->core_hotspot_x,
510 du->hotspot_y + du->core_hotspot_y);
511 }
512
513 mutex_unlock(&dev->mode_config.mutex);
514}
515
516
517void vmw_du_cursor_plane_destroy(struct drm_plane *plane)
518{
519 struct vmw_cursor_plane *vcp = vmw_plane_to_vcp(plane);
520 u32 i;
521
522 vmw_cursor_update_position(vmw_priv(plane->dev), false, 0, 0);
523
524 for (i = 0; i < ARRAY_SIZE(vcp->cursor_mobs); i++)
525 vmw_du_destroy_cursor_mob(&vcp->cursor_mobs[i]);
526
527 drm_plane_cleanup(plane);
528}
529
530
531void vmw_du_primary_plane_destroy(struct drm_plane *plane)
532{
533 drm_plane_cleanup(plane);
534
535 /* Planes are static in our case so we don't free it */
536}
537
538
539/**
540 * vmw_du_plane_unpin_surf - unpins resource associated with a framebuffer surface
541 *
542 * @vps: plane state associated with the display surface
543 */
544void vmw_du_plane_unpin_surf(struct vmw_plane_state *vps)
545{
546 struct vmw_surface *surf = vmw_user_object_surface(&vps->uo);
547
548 if (surf) {
549 if (vps->pinned) {
550 vmw_resource_unpin(&surf->res);
551 vps->pinned--;
552 }
553 }
554}
555
556
557/**
558 * vmw_du_plane_cleanup_fb - Unpins the plane surface
559 *
560 * @plane: display plane
561 * @old_state: Contains the FB to clean up
562 *
563 * Unpins the framebuffer surface
564 *
565 * Returns 0 on success
566 */
567void
568vmw_du_plane_cleanup_fb(struct drm_plane *plane,
569 struct drm_plane_state *old_state)
570{
571 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
572
573 vmw_du_plane_unpin_surf(vps);
574}
575
576
577/**
578 * vmw_du_cursor_plane_map_cm - Maps the cursor mobs.
579 *
580 * @vps: plane_state
581 *
582 * Returns 0 on success
583 */
584
585static int
586vmw_du_cursor_plane_map_cm(struct vmw_plane_state *vps)
587{
588 int ret;
589 u32 size = vmw_du_cursor_mob_size(vps->base.crtc_w, vps->base.crtc_h);
590 struct ttm_buffer_object *bo;
591
592 if (!vps->cursor.bo)
593 return -EINVAL;
594
595 bo = &vps->cursor.bo->tbo;
596
597 if (bo->base.size < size)
598 return -EINVAL;
599
600 if (vps->cursor.bo->map.virtual)
601 return 0;
602
603 ret = ttm_bo_reserve(bo, false, false, NULL);
604 if (unlikely(ret != 0))
605 return -ENOMEM;
606
607 vmw_bo_map_and_cache(vps->cursor.bo);
608
609 ttm_bo_unreserve(bo);
610
611 if (unlikely(ret != 0))
612 return -ENOMEM;
613
614 return 0;
615}
616
617
618/**
619 * vmw_du_cursor_plane_unmap_cm - Unmaps the cursor mobs.
620 *
621 * @vps: state of the cursor plane
622 *
623 * Returns 0 on success
624 */
625
626static int
627vmw_du_cursor_plane_unmap_cm(struct vmw_plane_state *vps)
628{
629 int ret = 0;
630 struct vmw_bo *vbo = vps->cursor.bo;
631
632 if (!vbo || !vbo->map.virtual)
633 return 0;
634
635 ret = ttm_bo_reserve(&vbo->tbo, true, false, NULL);
636 if (likely(ret == 0)) {
637 vmw_bo_unmap(vbo);
638 ttm_bo_unreserve(&vbo->tbo);
639 }
640
641 return ret;
642}
643
644
645/**
646 * vmw_du_cursor_plane_cleanup_fb - Unpins the plane surface
647 *
648 * @plane: cursor plane
649 * @old_state: contains the state to clean up
650 *
651 * Unmaps all cursor bo mappings and unpins the cursor surface
652 *
653 * Returns 0 on success
654 */
655void
656vmw_du_cursor_plane_cleanup_fb(struct drm_plane *plane,
657 struct drm_plane_state *old_state)
658{
659 struct vmw_cursor_plane *vcp = vmw_plane_to_vcp(plane);
660 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
661
662 if (!vmw_user_object_is_null(&vps->uo))
663 vmw_user_object_unmap(&vps->uo);
664
665 vmw_du_cursor_plane_unmap_cm(vps);
666 vmw_du_put_cursor_mob(vcp, vps);
667
668 vmw_du_plane_unpin_surf(vps);
669 vmw_user_object_unref(&vps->uo);
670}
671
672
673/**
674 * vmw_du_cursor_plane_prepare_fb - Readies the cursor by referencing it
675 *
676 * @plane: display plane
677 * @new_state: info on the new plane state, including the FB
678 *
679 * Returns 0 on success
680 */
681int
682vmw_du_cursor_plane_prepare_fb(struct drm_plane *plane,
683 struct drm_plane_state *new_state)
684{
685 struct drm_framebuffer *fb = new_state->fb;
686 struct vmw_cursor_plane *vcp = vmw_plane_to_vcp(plane);
687 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
688 struct vmw_bo *bo = NULL;
689 int ret = 0;
690
691 if (!vmw_user_object_is_null(&vps->uo)) {
692 vmw_user_object_unmap(&vps->uo);
693 vmw_user_object_unref(&vps->uo);
694 }
695
696 if (fb) {
697 if (vmw_framebuffer_to_vfb(fb)->bo) {
698 vps->uo.buffer = vmw_framebuffer_to_vfbd(fb)->buffer;
699 vps->uo.surface = NULL;
700 } else {
701 memcpy(&vps->uo, &vmw_framebuffer_to_vfbs(fb)->uo, sizeof(vps->uo));
702 }
703 vmw_user_object_ref(&vps->uo);
704 }
705
706 bo = vmw_user_object_buffer(&vps->uo);
707 if (bo) {
708 struct ttm_operation_ctx ctx = {false, false};
709
710 ret = ttm_bo_reserve(&bo->tbo, true, false, NULL);
711 if (ret != 0)
712 return -ENOMEM;
713
714 ret = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
715 if (ret != 0)
716 return -ENOMEM;
717
718 vmw_bo_pin_reserved(bo, true);
719 if (vmw_framebuffer_to_vfb(fb)->bo) {
720 const u32 size = new_state->crtc_w * new_state->crtc_h * sizeof(u32);
721
722 (void)vmw_bo_map_and_cache_size(bo, size);
723 } else {
724 vmw_bo_map_and_cache(bo);
725 }
726 ttm_bo_unreserve(&bo->tbo);
727 }
728
729 if (!vmw_user_object_is_null(&vps->uo)) {
730 vmw_du_get_cursor_mob(vcp, vps);
731 vmw_du_cursor_plane_map_cm(vps);
732 }
733
734 return 0;
735}
736
737
738void
739vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
740 struct drm_atomic_state *state)
741{
742 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
743 plane);
744 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
745 plane);
746 struct drm_crtc *crtc = new_state->crtc ?: old_state->crtc;
747 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
748 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
749 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
750 struct vmw_plane_state *old_vps = vmw_plane_state_to_vps(old_state);
751 struct vmw_bo *old_bo = NULL;
752 struct vmw_bo *new_bo = NULL;
753 struct ww_acquire_ctx ctx;
754 s32 hotspot_x, hotspot_y;
755 int ret;
756
757 hotspot_x = du->hotspot_x + new_state->hotspot_x;
758 hotspot_y = du->hotspot_y + new_state->hotspot_y;
759
760 du->cursor_surface = vmw_user_object_surface(&vps->uo);
761
762 if (vmw_user_object_is_null(&vps->uo)) {
763 vmw_cursor_update_position(dev_priv, false, 0, 0);
764 return;
765 }
766
767 vps->cursor.hotspot_x = hotspot_x;
768 vps->cursor.hotspot_y = hotspot_y;
769
770 if (du->cursor_surface)
771 du->cursor_age = du->cursor_surface->snooper.age;
772
773 ww_acquire_init(&ctx, &reservation_ww_class);
774
775 if (!vmw_user_object_is_null(&old_vps->uo)) {
776 old_bo = vmw_user_object_buffer(&old_vps->uo);
777 ret = ttm_bo_reserve(&old_bo->tbo, false, false, &ctx);
778 if (ret != 0)
779 return;
780 }
781
782 if (!vmw_user_object_is_null(&vps->uo)) {
783 new_bo = vmw_user_object_buffer(&vps->uo);
784 if (old_bo != new_bo) {
785 ret = ttm_bo_reserve(&new_bo->tbo, false, false, &ctx);
786 if (ret != 0) {
787 if (old_bo) {
788 ttm_bo_unreserve(&old_bo->tbo);
789 ww_acquire_fini(&ctx);
790 }
791 return;
792 }
793 } else {
794 new_bo = NULL;
795 }
796 }
797 if (!vmw_du_cursor_plane_has_changed(old_vps, vps)) {
798 /*
799 * If it hasn't changed, avoid making the device do extra
800 * work by keeping the old cursor active.
801 */
802 struct vmw_cursor_plane_state tmp = old_vps->cursor;
803 old_vps->cursor = vps->cursor;
804 vps->cursor = tmp;
805 } else {
806 void *image = vmw_du_cursor_plane_acquire_image(vps);
807 if (image)
808 vmw_cursor_update_image(dev_priv, vps, image,
809 new_state->crtc_w,
810 new_state->crtc_h,
811 hotspot_x, hotspot_y);
812 }
813
814 if (new_bo)
815 ttm_bo_unreserve(&new_bo->tbo);
816 if (old_bo)
817 ttm_bo_unreserve(&old_bo->tbo);
818
819 ww_acquire_fini(&ctx);
820
821 du->cursor_x = new_state->crtc_x + du->set_gui_x;
822 du->cursor_y = new_state->crtc_y + du->set_gui_y;
823
824 vmw_cursor_update_position(dev_priv, true,
825 du->cursor_x + hotspot_x,
826 du->cursor_y + hotspot_y);
827
828 du->core_hotspot_x = hotspot_x - du->hotspot_x;
829 du->core_hotspot_y = hotspot_y - du->hotspot_y;
830}
831
832
833/**
834 * vmw_du_primary_plane_atomic_check - check if the new state is okay
835 *
836 * @plane: display plane
837 * @state: info on the new plane state, including the FB
838 *
839 * Check if the new state is settable given the current state. Other
840 * than what the atomic helper checks, we care about crtc fitting
841 * the FB and maintaining one active framebuffer.
842 *
843 * Returns 0 on success
844 */
845int vmw_du_primary_plane_atomic_check(struct drm_plane *plane,
846 struct drm_atomic_state *state)
847{
848 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
849 plane);
850 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
851 plane);
852 struct drm_crtc_state *crtc_state = NULL;
853 struct drm_framebuffer *new_fb = new_state->fb;
854 struct drm_framebuffer *old_fb = old_state->fb;
855 int ret;
856
857 /*
858 * Ignore damage clips if the framebuffer attached to the plane's state
859 * has changed since the last plane update (page-flip). In this case, a
860 * full plane update should happen because uploads are done per-buffer.
861 */
862 if (old_fb != new_fb)
863 new_state->ignore_damage_clips = true;
864
865 if (new_state->crtc)
866 crtc_state = drm_atomic_get_new_crtc_state(state,
867 new_state->crtc);
868
869 ret = drm_atomic_helper_check_plane_state(new_state, crtc_state,
870 DRM_PLANE_NO_SCALING,
871 DRM_PLANE_NO_SCALING,
872 false, true);
873 return ret;
874}
875
876
877/**
878 * vmw_du_cursor_plane_atomic_check - check if the new state is okay
879 *
880 * @plane: cursor plane
881 * @state: info on the new plane state
882 *
883 * This is a chance to fail if the new cursor state does not fit
884 * our requirements.
885 *
886 * Returns 0 on success
887 */
888int vmw_du_cursor_plane_atomic_check(struct drm_plane *plane,
889 struct drm_atomic_state *state)
890{
891 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
892 plane);
893 int ret = 0;
894 struct drm_crtc_state *crtc_state = NULL;
895 struct vmw_surface *surface = NULL;
896 struct drm_framebuffer *fb = new_state->fb;
897
898 if (new_state->crtc)
899 crtc_state = drm_atomic_get_new_crtc_state(new_state->state,
900 new_state->crtc);
901
902 ret = drm_atomic_helper_check_plane_state(new_state, crtc_state,
903 DRM_PLANE_NO_SCALING,
904 DRM_PLANE_NO_SCALING,
905 true, true);
906 if (ret)
907 return ret;
908
909 /* Turning off */
910 if (!fb)
911 return 0;
912
913 /* A lot of the code assumes this */
914 if (new_state->crtc_w != 64 || new_state->crtc_h != 64) {
915 DRM_ERROR("Invalid cursor dimensions (%d, %d)\n",
916 new_state->crtc_w, new_state->crtc_h);
917 return -EINVAL;
918 }
919
920 if (!vmw_framebuffer_to_vfb(fb)->bo) {
921 surface = vmw_user_object_surface(&vmw_framebuffer_to_vfbs(fb)->uo);
922
923 WARN_ON(!surface);
924
925 if (!surface ||
926 (!surface->snooper.image && !surface->res.guest_memory_bo)) {
927 DRM_ERROR("surface not suitable for cursor\n");
928 return -EINVAL;
929 }
930 }
931
932 return 0;
933}
934
935
936int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
937 struct drm_atomic_state *state)
938{
939 struct vmw_private *vmw = vmw_priv(crtc->dev);
940 struct drm_crtc_state *new_state = drm_atomic_get_new_crtc_state(state,
941 crtc);
942 struct vmw_display_unit *du = vmw_crtc_to_du(new_state->crtc);
943 int connector_mask = drm_connector_mask(&du->connector);
944 bool has_primary = new_state->plane_mask &
945 drm_plane_mask(crtc->primary);
946
947 /*
948 * This is fine in general, but broken userspace might expect
949 * some actual rendering so give a clue as why it's blank.
950 */
951 if (new_state->enable && !has_primary)
952 drm_dbg_driver(&vmw->drm,
953 "CRTC without a primary plane will be blank.\n");
954
955
956 if (new_state->connector_mask != connector_mask &&
957 new_state->connector_mask != 0) {
958 DRM_ERROR("Invalid connectors configuration\n");
959 return -EINVAL;
960 }
961
962 /*
963 * Our virtual device does not have a dot clock, so use the logical
964 * clock value as the dot clock.
965 */
966 if (new_state->mode.crtc_clock == 0)
967 new_state->adjusted_mode.crtc_clock = new_state->mode.clock;
968
969 return 0;
970}
971
972
973void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
974 struct drm_atomic_state *state)
975{
976 vmw_vkms_crtc_atomic_begin(crtc, state);
977}
978
979/**
980 * vmw_du_crtc_duplicate_state - duplicate crtc state
981 * @crtc: DRM crtc
982 *
983 * Allocates and returns a copy of the crtc state (both common and
984 * vmw-specific) for the specified crtc.
985 *
986 * Returns: The newly allocated crtc state, or NULL on failure.
987 */
988struct drm_crtc_state *
989vmw_du_crtc_duplicate_state(struct drm_crtc *crtc)
990{
991 struct drm_crtc_state *state;
992 struct vmw_crtc_state *vcs;
993
994 if (WARN_ON(!crtc->state))
995 return NULL;
996
997 vcs = kmemdup(crtc->state, sizeof(*vcs), GFP_KERNEL);
998
999 if (!vcs)
1000 return NULL;
1001
1002 state = &vcs->base;
1003
1004 __drm_atomic_helper_crtc_duplicate_state(crtc, state);
1005
1006 return state;
1007}
1008
1009
1010/**
1011 * vmw_du_crtc_reset - creates a blank vmw crtc state
1012 * @crtc: DRM crtc
1013 *
1014 * Resets the atomic state for @crtc by freeing the state pointer (which
1015 * might be NULL, e.g. at driver load time) and allocating a new empty state
1016 * object.
1017 */
1018void vmw_du_crtc_reset(struct drm_crtc *crtc)
1019{
1020 struct vmw_crtc_state *vcs;
1021
1022
1023 if (crtc->state) {
1024 __drm_atomic_helper_crtc_destroy_state(crtc->state);
1025
1026 kfree(vmw_crtc_state_to_vcs(crtc->state));
1027 }
1028
1029 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
1030
1031 if (!vcs) {
1032 DRM_ERROR("Cannot allocate vmw_crtc_state\n");
1033 return;
1034 }
1035
1036 __drm_atomic_helper_crtc_reset(crtc, &vcs->base);
1037}
1038
1039
1040/**
1041 * vmw_du_crtc_destroy_state - destroy crtc state
1042 * @crtc: DRM crtc
1043 * @state: state object to destroy
1044 *
1045 * Destroys the crtc state (both common and vmw-specific) for the
1046 * specified plane.
1047 */
1048void
1049vmw_du_crtc_destroy_state(struct drm_crtc *crtc,
1050 struct drm_crtc_state *state)
1051{
1052 drm_atomic_helper_crtc_destroy_state(crtc, state);
1053}
1054
1055
1056/**
1057 * vmw_du_plane_duplicate_state - duplicate plane state
1058 * @plane: drm plane
1059 *
1060 * Allocates and returns a copy of the plane state (both common and
1061 * vmw-specific) for the specified plane.
1062 *
1063 * Returns: The newly allocated plane state, or NULL on failure.
1064 */
1065struct drm_plane_state *
1066vmw_du_plane_duplicate_state(struct drm_plane *plane)
1067{
1068 struct drm_plane_state *state;
1069 struct vmw_plane_state *vps;
1070
1071 vps = kmemdup(plane->state, sizeof(*vps), GFP_KERNEL);
1072
1073 if (!vps)
1074 return NULL;
1075
1076 vps->pinned = 0;
1077 vps->cpp = 0;
1078
1079 memset(&vps->cursor, 0, sizeof(vps->cursor));
1080
1081 /* Each ref counted resource needs to be acquired again */
1082 vmw_user_object_ref(&vps->uo);
1083 state = &vps->base;
1084
1085 __drm_atomic_helper_plane_duplicate_state(plane, state);
1086
1087 return state;
1088}
1089
1090
1091/**
1092 * vmw_du_plane_reset - creates a blank vmw plane state
1093 * @plane: drm plane
1094 *
1095 * Resets the atomic state for @plane by freeing the state pointer (which might
1096 * be NULL, e.g. at driver load time) and allocating a new empty state object.
1097 */
1098void vmw_du_plane_reset(struct drm_plane *plane)
1099{
1100 struct vmw_plane_state *vps;
1101
1102 if (plane->state)
1103 vmw_du_plane_destroy_state(plane, plane->state);
1104
1105 vps = kzalloc(sizeof(*vps), GFP_KERNEL);
1106
1107 if (!vps) {
1108 DRM_ERROR("Cannot allocate vmw_plane_state\n");
1109 return;
1110 }
1111
1112 __drm_atomic_helper_plane_reset(plane, &vps->base);
1113}
1114
1115
1116/**
1117 * vmw_du_plane_destroy_state - destroy plane state
1118 * @plane: DRM plane
1119 * @state: state object to destroy
1120 *
1121 * Destroys the plane state (both common and vmw-specific) for the
1122 * specified plane.
1123 */
1124void
1125vmw_du_plane_destroy_state(struct drm_plane *plane,
1126 struct drm_plane_state *state)
1127{
1128 struct vmw_plane_state *vps = vmw_plane_state_to_vps(state);
1129
1130 /* Should have been freed by cleanup_fb */
1131 vmw_user_object_unref(&vps->uo);
1132
1133 drm_atomic_helper_plane_destroy_state(plane, state);
1134}
1135
1136
1137/**
1138 * vmw_du_connector_duplicate_state - duplicate connector state
1139 * @connector: DRM connector
1140 *
1141 * Allocates and returns a copy of the connector state (both common and
1142 * vmw-specific) for the specified connector.
1143 *
1144 * Returns: The newly allocated connector state, or NULL on failure.
1145 */
1146struct drm_connector_state *
1147vmw_du_connector_duplicate_state(struct drm_connector *connector)
1148{
1149 struct drm_connector_state *state;
1150 struct vmw_connector_state *vcs;
1151
1152 if (WARN_ON(!connector->state))
1153 return NULL;
1154
1155 vcs = kmemdup(connector->state, sizeof(*vcs), GFP_KERNEL);
1156
1157 if (!vcs)
1158 return NULL;
1159
1160 state = &vcs->base;
1161
1162 __drm_atomic_helper_connector_duplicate_state(connector, state);
1163
1164 return state;
1165}
1166
1167
1168/**
1169 * vmw_du_connector_reset - creates a blank vmw connector state
1170 * @connector: DRM connector
1171 *
1172 * Resets the atomic state for @connector by freeing the state pointer (which
1173 * might be NULL, e.g. at driver load time) and allocating a new empty state
1174 * object.
1175 */
1176void vmw_du_connector_reset(struct drm_connector *connector)
1177{
1178 struct vmw_connector_state *vcs;
1179
1180
1181 if (connector->state) {
1182 __drm_atomic_helper_connector_destroy_state(connector->state);
1183
1184 kfree(vmw_connector_state_to_vcs(connector->state));
1185 }
1186
1187 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
1188
1189 if (!vcs) {
1190 DRM_ERROR("Cannot allocate vmw_connector_state\n");
1191 return;
1192 }
1193
1194 __drm_atomic_helper_connector_reset(connector, &vcs->base);
1195}
1196
1197
1198/**
1199 * vmw_du_connector_destroy_state - destroy connector state
1200 * @connector: DRM connector
1201 * @state: state object to destroy
1202 *
1203 * Destroys the connector state (both common and vmw-specific) for the
1204 * specified plane.
1205 */
1206void
1207vmw_du_connector_destroy_state(struct drm_connector *connector,
1208 struct drm_connector_state *state)
1209{
1210 drm_atomic_helper_connector_destroy_state(connector, state);
1211}
1212/*
1213 * Generic framebuffer code
1214 */
1215
1216/*
1217 * Surface framebuffer code
1218 */
1219
1220static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
1221{
1222 struct vmw_framebuffer_surface *vfbs =
1223 vmw_framebuffer_to_vfbs(framebuffer);
1224
1225 drm_framebuffer_cleanup(framebuffer);
1226 vmw_user_object_unref(&vfbs->uo);
1227
1228 kfree(vfbs);
1229}
1230
1231/**
1232 * vmw_kms_readback - Perform a readback from the screen system to
1233 * a buffer-object backed framebuffer.
1234 *
1235 * @dev_priv: Pointer to the device private structure.
1236 * @file_priv: Pointer to a struct drm_file identifying the caller.
1237 * Must be set to NULL if @user_fence_rep is NULL.
1238 * @vfb: Pointer to the buffer-object backed framebuffer.
1239 * @user_fence_rep: User-space provided structure for fence information.
1240 * Must be set to non-NULL if @file_priv is non-NULL.
1241 * @vclips: Array of clip rects.
1242 * @num_clips: Number of clip rects in @vclips.
1243 *
1244 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
1245 * interrupted.
1246 */
1247int vmw_kms_readback(struct vmw_private *dev_priv,
1248 struct drm_file *file_priv,
1249 struct vmw_framebuffer *vfb,
1250 struct drm_vmw_fence_rep __user *user_fence_rep,
1251 struct drm_vmw_rect *vclips,
1252 uint32_t num_clips)
1253{
1254 switch (dev_priv->active_display_unit) {
1255 case vmw_du_screen_object:
1256 return vmw_kms_sou_readback(dev_priv, file_priv, vfb,
1257 user_fence_rep, vclips, num_clips,
1258 NULL);
1259 case vmw_du_screen_target:
1260 return vmw_kms_stdu_readback(dev_priv, file_priv, vfb,
1261 user_fence_rep, NULL, vclips, num_clips,
1262 1, NULL);
1263 default:
1264 WARN_ONCE(true,
1265 "Readback called with invalid display system.\n");
1266}
1267
1268 return -ENOSYS;
1269}
1270
1271static int vmw_framebuffer_surface_create_handle(struct drm_framebuffer *fb,
1272 struct drm_file *file_priv,
1273 unsigned int *handle)
1274{
1275 struct vmw_framebuffer_surface *vfbs = vmw_framebuffer_to_vfbs(fb);
1276 struct vmw_bo *bo = vmw_user_object_buffer(&vfbs->uo);
1277
1278 if (WARN_ON(!bo))
1279 return -EINVAL;
1280 return drm_gem_handle_create(file_priv, &bo->tbo.base, handle);
1281}
1282
1283static const struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
1284 .create_handle = vmw_framebuffer_surface_create_handle,
1285 .destroy = vmw_framebuffer_surface_destroy,
1286 .dirty = drm_atomic_helper_dirtyfb,
1287};
1288
1289static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
1290 struct vmw_user_object *uo,
1291 struct vmw_framebuffer **out,
1292 const struct drm_mode_fb_cmd2
1293 *mode_cmd)
1294
1295{
1296 struct drm_device *dev = &dev_priv->drm;
1297 struct vmw_framebuffer_surface *vfbs;
1298 struct vmw_surface *surface;
1299 int ret;
1300
1301 /* 3D is only supported on HWv8 and newer hosts */
1302 if (dev_priv->active_display_unit == vmw_du_legacy)
1303 return -ENOSYS;
1304
1305 surface = vmw_user_object_surface(uo);
1306
1307 /*
1308 * Sanity checks.
1309 */
1310
1311 if (!drm_any_plane_has_format(&dev_priv->drm,
1312 mode_cmd->pixel_format,
1313 mode_cmd->modifier[0])) {
1314 drm_dbg(&dev_priv->drm,
1315 "unsupported pixel format %p4cc / modifier 0x%llx\n",
1316 &mode_cmd->pixel_format, mode_cmd->modifier[0]);
1317 return -EINVAL;
1318 }
1319
1320 /* Surface must be marked as a scanout. */
1321 if (unlikely(!surface->metadata.scanout))
1322 return -EINVAL;
1323
1324 if (unlikely(surface->metadata.mip_levels[0] != 1 ||
1325 surface->metadata.num_sizes != 1 ||
1326 surface->metadata.base_size.width < mode_cmd->width ||
1327 surface->metadata.base_size.height < mode_cmd->height ||
1328 surface->metadata.base_size.depth != 1)) {
1329 DRM_ERROR("Incompatible surface dimensions "
1330 "for requested mode.\n");
1331 return -EINVAL;
1332 }
1333
1334 vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
1335 if (!vfbs) {
1336 ret = -ENOMEM;
1337 goto out_err1;
1338 }
1339
1340 drm_helper_mode_fill_fb_struct(dev, &vfbs->base.base, mode_cmd);
1341 memcpy(&vfbs->uo, uo, sizeof(vfbs->uo));
1342 vmw_user_object_ref(&vfbs->uo);
1343
1344 *out = &vfbs->base;
1345
1346 ret = drm_framebuffer_init(dev, &vfbs->base.base,
1347 &vmw_framebuffer_surface_funcs);
1348 if (ret)
1349 goto out_err2;
1350
1351 return 0;
1352
1353out_err2:
1354 vmw_user_object_unref(&vfbs->uo);
1355 kfree(vfbs);
1356out_err1:
1357 return ret;
1358}
1359
1360/*
1361 * Buffer-object framebuffer code
1362 */
1363
1364static int vmw_framebuffer_bo_create_handle(struct drm_framebuffer *fb,
1365 struct drm_file *file_priv,
1366 unsigned int *handle)
1367{
1368 struct vmw_framebuffer_bo *vfbd =
1369 vmw_framebuffer_to_vfbd(fb);
1370 return drm_gem_handle_create(file_priv, &vfbd->buffer->tbo.base, handle);
1371}
1372
1373static void vmw_framebuffer_bo_destroy(struct drm_framebuffer *framebuffer)
1374{
1375 struct vmw_framebuffer_bo *vfbd =
1376 vmw_framebuffer_to_vfbd(framebuffer);
1377
1378 drm_framebuffer_cleanup(framebuffer);
1379 vmw_bo_unreference(&vfbd->buffer);
1380
1381 kfree(vfbd);
1382}
1383
1384static const struct drm_framebuffer_funcs vmw_framebuffer_bo_funcs = {
1385 .create_handle = vmw_framebuffer_bo_create_handle,
1386 .destroy = vmw_framebuffer_bo_destroy,
1387 .dirty = drm_atomic_helper_dirtyfb,
1388};
1389
1390static int vmw_kms_new_framebuffer_bo(struct vmw_private *dev_priv,
1391 struct vmw_bo *bo,
1392 struct vmw_framebuffer **out,
1393 const struct drm_mode_fb_cmd2
1394 *mode_cmd)
1395
1396{
1397 struct drm_device *dev = &dev_priv->drm;
1398 struct vmw_framebuffer_bo *vfbd;
1399 unsigned int requested_size;
1400 int ret;
1401
1402 requested_size = mode_cmd->height * mode_cmd->pitches[0];
1403 if (unlikely(requested_size > bo->tbo.base.size)) {
1404 DRM_ERROR("Screen buffer object size is too small "
1405 "for requested mode.\n");
1406 return -EINVAL;
1407 }
1408
1409 if (!drm_any_plane_has_format(&dev_priv->drm,
1410 mode_cmd->pixel_format,
1411 mode_cmd->modifier[0])) {
1412 drm_dbg(&dev_priv->drm,
1413 "unsupported pixel format %p4cc / modifier 0x%llx\n",
1414 &mode_cmd->pixel_format, mode_cmd->modifier[0]);
1415 return -EINVAL;
1416 }
1417
1418 vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
1419 if (!vfbd) {
1420 ret = -ENOMEM;
1421 goto out_err1;
1422 }
1423
1424 vfbd->base.base.obj[0] = &bo->tbo.base;
1425 drm_helper_mode_fill_fb_struct(dev, &vfbd->base.base, mode_cmd);
1426 vfbd->base.bo = true;
1427 vfbd->buffer = vmw_bo_reference(bo);
1428 *out = &vfbd->base;
1429
1430 ret = drm_framebuffer_init(dev, &vfbd->base.base,
1431 &vmw_framebuffer_bo_funcs);
1432 if (ret)
1433 goto out_err2;
1434
1435 return 0;
1436
1437out_err2:
1438 vmw_bo_unreference(&bo);
1439 kfree(vfbd);
1440out_err1:
1441 return ret;
1442}
1443
1444
1445/**
1446 * vmw_kms_srf_ok - check if a surface can be created
1447 *
1448 * @dev_priv: Pointer to device private struct.
1449 * @width: requested width
1450 * @height: requested height
1451 *
1452 * Surfaces need to be less than texture size
1453 */
1454static bool
1455vmw_kms_srf_ok(struct vmw_private *dev_priv, uint32_t width, uint32_t height)
1456{
1457 if (width > dev_priv->texture_max_width ||
1458 height > dev_priv->texture_max_height)
1459 return false;
1460
1461 return true;
1462}
1463
1464/**
1465 * vmw_kms_new_framebuffer - Create a new framebuffer.
1466 *
1467 * @dev_priv: Pointer to device private struct.
1468 * @uo: Pointer to user object to wrap the kms framebuffer around.
1469 * Either the buffer or surface inside the user object must be NULL.
1470 * @mode_cmd: Frame-buffer metadata.
1471 */
1472struct vmw_framebuffer *
1473vmw_kms_new_framebuffer(struct vmw_private *dev_priv,
1474 struct vmw_user_object *uo,
1475 const struct drm_mode_fb_cmd2 *mode_cmd)
1476{
1477 struct vmw_framebuffer *vfb = NULL;
1478 int ret;
1479
1480 /* Create the new framebuffer depending one what we have */
1481 if (vmw_user_object_surface(uo)) {
1482 ret = vmw_kms_new_framebuffer_surface(dev_priv, uo, &vfb,
1483 mode_cmd);
1484 } else if (uo->buffer) {
1485 ret = vmw_kms_new_framebuffer_bo(dev_priv, uo->buffer, &vfb,
1486 mode_cmd);
1487 } else {
1488 BUG();
1489 }
1490
1491 if (ret)
1492 return ERR_PTR(ret);
1493
1494 return vfb;
1495}
1496
1497/*
1498 * Generic Kernel modesetting functions
1499 */
1500
1501static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
1502 struct drm_file *file_priv,
1503 const struct drm_mode_fb_cmd2 *mode_cmd)
1504{
1505 struct vmw_private *dev_priv = vmw_priv(dev);
1506 struct vmw_framebuffer *vfb = NULL;
1507 struct vmw_user_object uo = {0};
1508 int ret;
1509
1510 /* returns either a bo or surface */
1511 ret = vmw_user_object_lookup(dev_priv, file_priv, mode_cmd->handles[0],
1512 &uo);
1513 if (ret) {
1514 DRM_ERROR("Invalid buffer object handle %u (0x%x).\n",
1515 mode_cmd->handles[0], mode_cmd->handles[0]);
1516 goto err_out;
1517 }
1518
1519
1520 if (vmw_user_object_surface(&uo) &&
1521 !vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height)) {
1522 DRM_ERROR("Surface size cannot exceed %dx%d\n",
1523 dev_priv->texture_max_width,
1524 dev_priv->texture_max_height);
1525 ret = -EINVAL;
1526 goto err_out;
1527 }
1528
1529
1530 vfb = vmw_kms_new_framebuffer(dev_priv, &uo, mode_cmd);
1531 if (IS_ERR(vfb)) {
1532 ret = PTR_ERR(vfb);
1533 goto err_out;
1534 }
1535
1536err_out:
1537 /* vmw_user_object_lookup takes one ref so does new_fb */
1538 vmw_user_object_unref(&uo);
1539
1540 if (ret) {
1541 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1542 return ERR_PTR(ret);
1543 }
1544
1545 return &vfb->base;
1546}
1547
1548/**
1549 * vmw_kms_check_display_memory - Validates display memory required for a
1550 * topology
1551 * @dev: DRM device
1552 * @num_rects: number of drm_rect in rects
1553 * @rects: array of drm_rect representing the topology to validate indexed by
1554 * crtc index.
1555 *
1556 * Returns:
1557 * 0 on success otherwise negative error code
1558 */
1559static int vmw_kms_check_display_memory(struct drm_device *dev,
1560 uint32_t num_rects,
1561 struct drm_rect *rects)
1562{
1563 struct vmw_private *dev_priv = vmw_priv(dev);
1564 struct drm_rect bounding_box = {0};
1565 u64 total_pixels = 0, pixel_mem, bb_mem;
1566 int i;
1567
1568 for (i = 0; i < num_rects; i++) {
1569 /*
1570 * For STDU only individual screen (screen target) is limited by
1571 * SCREENTARGET_MAX_WIDTH/HEIGHT registers.
1572 */
1573 if (dev_priv->active_display_unit == vmw_du_screen_target &&
1574 (drm_rect_width(&rects[i]) > dev_priv->stdu_max_width ||
1575 drm_rect_height(&rects[i]) > dev_priv->stdu_max_height)) {
1576 VMW_DEBUG_KMS("Screen size not supported.\n");
1577 return -EINVAL;
1578 }
1579
1580 /* Bounding box upper left is at (0,0). */
1581 if (rects[i].x2 > bounding_box.x2)
1582 bounding_box.x2 = rects[i].x2;
1583
1584 if (rects[i].y2 > bounding_box.y2)
1585 bounding_box.y2 = rects[i].y2;
1586
1587 total_pixels += (u64) drm_rect_width(&rects[i]) *
1588 (u64) drm_rect_height(&rects[i]);
1589 }
1590
1591 /* Virtual svga device primary limits are always in 32-bpp. */
1592 pixel_mem = total_pixels * 4;
1593
1594 /*
1595 * For HV10 and below prim_bb_mem is vram size. When
1596 * SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM is not present vram size is
1597 * limit on primary bounding box
1598 */
1599 if (pixel_mem > dev_priv->max_primary_mem) {
1600 VMW_DEBUG_KMS("Combined output size too large.\n");
1601 return -EINVAL;
1602 }
1603
1604 /* SVGA_CAP_NO_BB_RESTRICTION is available for STDU only. */
1605 if (dev_priv->active_display_unit != vmw_du_screen_target ||
1606 !(dev_priv->capabilities & SVGA_CAP_NO_BB_RESTRICTION)) {
1607 bb_mem = (u64) bounding_box.x2 * bounding_box.y2 * 4;
1608
1609 if (bb_mem > dev_priv->max_primary_mem) {
1610 VMW_DEBUG_KMS("Topology is beyond supported limits.\n");
1611 return -EINVAL;
1612 }
1613 }
1614
1615 return 0;
1616}
1617
1618/**
1619 * vmw_crtc_state_and_lock - Return new or current crtc state with locked
1620 * crtc mutex
1621 * @state: The atomic state pointer containing the new atomic state
1622 * @crtc: The crtc
1623 *
1624 * This function returns the new crtc state if it's part of the state update.
1625 * Otherwise returns the current crtc state. It also makes sure that the
1626 * crtc mutex is locked.
1627 *
1628 * Returns: A valid crtc state pointer or NULL. It may also return a
1629 * pointer error, in particular -EDEADLK if locking needs to be rerun.
1630 */
1631static struct drm_crtc_state *
1632vmw_crtc_state_and_lock(struct drm_atomic_state *state, struct drm_crtc *crtc)
1633{
1634 struct drm_crtc_state *crtc_state;
1635
1636 crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
1637 if (crtc_state) {
1638 lockdep_assert_held(&crtc->mutex.mutex.base);
1639 } else {
1640 int ret = drm_modeset_lock(&crtc->mutex, state->acquire_ctx);
1641
1642 if (ret != 0 && ret != -EALREADY)
1643 return ERR_PTR(ret);
1644
1645 crtc_state = crtc->state;
1646 }
1647
1648 return crtc_state;
1649}
1650
1651/**
1652 * vmw_kms_check_implicit - Verify that all implicit display units scan out
1653 * from the same fb after the new state is committed.
1654 * @dev: The drm_device.
1655 * @state: The new state to be checked.
1656 *
1657 * Returns:
1658 * Zero on success,
1659 * -EINVAL on invalid state,
1660 * -EDEADLK if modeset locking needs to be rerun.
1661 */
1662static int vmw_kms_check_implicit(struct drm_device *dev,
1663 struct drm_atomic_state *state)
1664{
1665 struct drm_framebuffer *implicit_fb = NULL;
1666 struct drm_crtc *crtc;
1667 struct drm_crtc_state *crtc_state;
1668 struct drm_plane_state *plane_state;
1669
1670 drm_for_each_crtc(crtc, dev) {
1671 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1672
1673 if (!du->is_implicit)
1674 continue;
1675
1676 crtc_state = vmw_crtc_state_and_lock(state, crtc);
1677 if (IS_ERR(crtc_state))
1678 return PTR_ERR(crtc_state);
1679
1680 if (!crtc_state || !crtc_state->enable)
1681 continue;
1682
1683 /*
1684 * Can't move primary planes across crtcs, so this is OK.
1685 * It also means we don't need to take the plane mutex.
1686 */
1687 plane_state = du->primary.state;
1688 if (plane_state->crtc != crtc)
1689 continue;
1690
1691 if (!implicit_fb)
1692 implicit_fb = plane_state->fb;
1693 else if (implicit_fb != plane_state->fb)
1694 return -EINVAL;
1695 }
1696
1697 return 0;
1698}
1699
1700/**
1701 * vmw_kms_check_topology - Validates topology in drm_atomic_state
1702 * @dev: DRM device
1703 * @state: the driver state object
1704 *
1705 * Returns:
1706 * 0 on success otherwise negative error code
1707 */
1708static int vmw_kms_check_topology(struct drm_device *dev,
1709 struct drm_atomic_state *state)
1710{
1711 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
1712 struct drm_rect *rects;
1713 struct drm_crtc *crtc;
1714 uint32_t i;
1715 int ret = 0;
1716
1717 rects = kcalloc(dev->mode_config.num_crtc, sizeof(struct drm_rect),
1718 GFP_KERNEL);
1719 if (!rects)
1720 return -ENOMEM;
1721
1722 drm_for_each_crtc(crtc, dev) {
1723 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1724 struct drm_crtc_state *crtc_state;
1725
1726 i = drm_crtc_index(crtc);
1727
1728 crtc_state = vmw_crtc_state_and_lock(state, crtc);
1729 if (IS_ERR(crtc_state)) {
1730 ret = PTR_ERR(crtc_state);
1731 goto clean;
1732 }
1733
1734 if (!crtc_state)
1735 continue;
1736
1737 if (crtc_state->enable) {
1738 rects[i].x1 = du->gui_x;
1739 rects[i].y1 = du->gui_y;
1740 rects[i].x2 = du->gui_x + crtc_state->mode.hdisplay;
1741 rects[i].y2 = du->gui_y + crtc_state->mode.vdisplay;
1742 } else {
1743 rects[i].x1 = 0;
1744 rects[i].y1 = 0;
1745 rects[i].x2 = 0;
1746 rects[i].y2 = 0;
1747 }
1748 }
1749
1750 /* Determine change to topology due to new atomic state */
1751 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
1752 new_crtc_state, i) {
1753 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1754 struct drm_connector *connector;
1755 struct drm_connector_state *conn_state;
1756 struct vmw_connector_state *vmw_conn_state;
1757
1758 if (!du->pref_active && new_crtc_state->enable) {
1759 VMW_DEBUG_KMS("Enabling a disabled display unit\n");
1760 ret = -EINVAL;
1761 goto clean;
1762 }
1763
1764 /*
1765 * For vmwgfx each crtc has only one connector attached and it
1766 * is not changed so don't really need to check the
1767 * crtc->connector_mask and iterate over it.
1768 */
1769 connector = &du->connector;
1770 conn_state = drm_atomic_get_connector_state(state, connector);
1771 if (IS_ERR(conn_state)) {
1772 ret = PTR_ERR(conn_state);
1773 goto clean;
1774 }
1775
1776 vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
1777 vmw_conn_state->gui_x = du->gui_x;
1778 vmw_conn_state->gui_y = du->gui_y;
1779 }
1780
1781 ret = vmw_kms_check_display_memory(dev, dev->mode_config.num_crtc,
1782 rects);
1783
1784clean:
1785 kfree(rects);
1786 return ret;
1787}
1788
1789/**
1790 * vmw_kms_atomic_check_modeset- validate state object for modeset changes
1791 *
1792 * @dev: DRM device
1793 * @state: the driver state object
1794 *
1795 * This is a simple wrapper around drm_atomic_helper_check_modeset() for
1796 * us to assign a value to mode->crtc_clock so that
1797 * drm_calc_timestamping_constants() won't throw an error message
1798 *
1799 * Returns:
1800 * Zero for success or -errno
1801 */
1802static int
1803vmw_kms_atomic_check_modeset(struct drm_device *dev,
1804 struct drm_atomic_state *state)
1805{
1806 struct drm_crtc *crtc;
1807 struct drm_crtc_state *crtc_state;
1808 bool need_modeset = false;
1809 int i, ret;
1810
1811 ret = drm_atomic_helper_check(dev, state);
1812 if (ret)
1813 return ret;
1814
1815 ret = vmw_kms_check_implicit(dev, state);
1816 if (ret) {
1817 VMW_DEBUG_KMS("Invalid implicit state\n");
1818 return ret;
1819 }
1820
1821 for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
1822 if (drm_atomic_crtc_needs_modeset(crtc_state))
1823 need_modeset = true;
1824 }
1825
1826 if (need_modeset)
1827 return vmw_kms_check_topology(dev, state);
1828
1829 return ret;
1830}
1831
1832static const struct drm_mode_config_funcs vmw_kms_funcs = {
1833 .fb_create = vmw_kms_fb_create,
1834 .atomic_check = vmw_kms_atomic_check_modeset,
1835 .atomic_commit = drm_atomic_helper_commit,
1836};
1837
1838static int vmw_kms_generic_present(struct vmw_private *dev_priv,
1839 struct drm_file *file_priv,
1840 struct vmw_framebuffer *vfb,
1841 struct vmw_surface *surface,
1842 uint32_t sid,
1843 int32_t destX, int32_t destY,
1844 struct drm_vmw_rect *clips,
1845 uint32_t num_clips)
1846{
1847 return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips,
1848 &surface->res, destX, destY,
1849 num_clips, 1, NULL, NULL);
1850}
1851
1852
1853int vmw_kms_present(struct vmw_private *dev_priv,
1854 struct drm_file *file_priv,
1855 struct vmw_framebuffer *vfb,
1856 struct vmw_surface *surface,
1857 uint32_t sid,
1858 int32_t destX, int32_t destY,
1859 struct drm_vmw_rect *clips,
1860 uint32_t num_clips)
1861{
1862 int ret;
1863
1864 switch (dev_priv->active_display_unit) {
1865 case vmw_du_screen_target:
1866 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips,
1867 &surface->res, destX, destY,
1868 num_clips, 1, NULL, NULL);
1869 break;
1870 case vmw_du_screen_object:
1871 ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface,
1872 sid, destX, destY, clips,
1873 num_clips);
1874 break;
1875 default:
1876 WARN_ONCE(true,
1877 "Present called with invalid display system.\n");
1878 ret = -ENOSYS;
1879 break;
1880 }
1881 if (ret)
1882 return ret;
1883
1884 vmw_cmd_flush(dev_priv, false);
1885
1886 return 0;
1887}
1888
1889static void
1890vmw_kms_create_hotplug_mode_update_property(struct vmw_private *dev_priv)
1891{
1892 if (dev_priv->hotplug_mode_update_property)
1893 return;
1894
1895 dev_priv->hotplug_mode_update_property =
1896 drm_property_create_range(&dev_priv->drm,
1897 DRM_MODE_PROP_IMMUTABLE,
1898 "hotplug_mode_update", 0, 1);
1899}
1900
1901static void
1902vmw_atomic_commit_tail(struct drm_atomic_state *old_state)
1903{
1904 struct vmw_private *vmw = vmw_priv(old_state->dev);
1905 struct drm_crtc *crtc;
1906 struct drm_crtc_state *old_crtc_state;
1907 int i;
1908
1909 drm_atomic_helper_commit_tail(old_state);
1910
1911 if (vmw->vkms_enabled) {
1912 for_each_old_crtc_in_state(old_state, crtc, old_crtc_state, i) {
1913 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1914 (void)old_crtc_state;
1915 flush_work(&du->vkms.crc_generator_work);
1916 }
1917 }
1918}
1919
1920static const struct drm_mode_config_helper_funcs vmw_mode_config_helpers = {
1921 .atomic_commit_tail = vmw_atomic_commit_tail,
1922};
1923
1924int vmw_kms_init(struct vmw_private *dev_priv)
1925{
1926 struct drm_device *dev = &dev_priv->drm;
1927 int ret;
1928 static const char *display_unit_names[] = {
1929 "Invalid",
1930 "Legacy",
1931 "Screen Object",
1932 "Screen Target",
1933 "Invalid (max)"
1934 };
1935
1936 drm_mode_config_init(dev);
1937 dev->mode_config.funcs = &vmw_kms_funcs;
1938 dev->mode_config.min_width = 1;
1939 dev->mode_config.min_height = 1;
1940 dev->mode_config.max_width = dev_priv->texture_max_width;
1941 dev->mode_config.max_height = dev_priv->texture_max_height;
1942 dev->mode_config.preferred_depth = dev_priv->assume_16bpp ? 16 : 32;
1943 dev->mode_config.helper_private = &vmw_mode_config_helpers;
1944
1945 drm_mode_create_suggested_offset_properties(dev);
1946 vmw_kms_create_hotplug_mode_update_property(dev_priv);
1947
1948 ret = vmw_kms_stdu_init_display(dev_priv);
1949 if (ret) {
1950 ret = vmw_kms_sou_init_display(dev_priv);
1951 if (ret) /* Fallback */
1952 ret = vmw_kms_ldu_init_display(dev_priv);
1953 }
1954 BUILD_BUG_ON(ARRAY_SIZE(display_unit_names) != (vmw_du_max + 1));
1955 drm_info(&dev_priv->drm, "%s display unit initialized\n",
1956 display_unit_names[dev_priv->active_display_unit]);
1957
1958 return ret;
1959}
1960
1961int vmw_kms_close(struct vmw_private *dev_priv)
1962{
1963 int ret = 0;
1964
1965 /*
1966 * Docs says we should take the lock before calling this function
1967 * but since it destroys encoders and our destructor calls
1968 * drm_encoder_cleanup which takes the lock we deadlock.
1969 */
1970 drm_mode_config_cleanup(&dev_priv->drm);
1971 if (dev_priv->active_display_unit == vmw_du_legacy)
1972 ret = vmw_kms_ldu_close_display(dev_priv);
1973
1974 return ret;
1975}
1976
1977int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1978 struct drm_file *file_priv)
1979{
1980 struct drm_vmw_cursor_bypass_arg *arg = data;
1981 struct vmw_display_unit *du;
1982 struct drm_crtc *crtc;
1983 int ret = 0;
1984
1985 mutex_lock(&dev->mode_config.mutex);
1986 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1987
1988 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1989 du = vmw_crtc_to_du(crtc);
1990 du->hotspot_x = arg->xhot;
1991 du->hotspot_y = arg->yhot;
1992 }
1993
1994 mutex_unlock(&dev->mode_config.mutex);
1995 return 0;
1996 }
1997
1998 crtc = drm_crtc_find(dev, file_priv, arg->crtc_id);
1999 if (!crtc) {
2000 ret = -ENOENT;
2001 goto out;
2002 }
2003
2004 du = vmw_crtc_to_du(crtc);
2005
2006 du->hotspot_x = arg->xhot;
2007 du->hotspot_y = arg->yhot;
2008
2009out:
2010 mutex_unlock(&dev->mode_config.mutex);
2011
2012 return ret;
2013}
2014
2015int vmw_kms_write_svga(struct vmw_private *vmw_priv,
2016 unsigned width, unsigned height, unsigned pitch,
2017 unsigned bpp, unsigned depth)
2018{
2019 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
2020 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
2021 else if (vmw_fifo_have_pitchlock(vmw_priv))
2022 vmw_fifo_mem_write(vmw_priv, SVGA_FIFO_PITCHLOCK, pitch);
2023 vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
2024 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
2025 if ((vmw_priv->capabilities & SVGA_CAP_8BIT_EMULATION) != 0)
2026 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
2027
2028 if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
2029 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
2030 depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
2031 return -EINVAL;
2032 }
2033
2034 return 0;
2035}
2036
2037static
2038bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
2039 u64 pitch,
2040 u64 height)
2041{
2042 return (pitch * height) < (u64)dev_priv->vram_size;
2043}
2044
2045/**
2046 * vmw_du_update_layout - Update the display unit with topology from resolution
2047 * plugin and generate DRM uevent
2048 * @dev_priv: device private
2049 * @num_rects: number of drm_rect in rects
2050 * @rects: toplogy to update
2051 */
2052static int vmw_du_update_layout(struct vmw_private *dev_priv,
2053 unsigned int num_rects, struct drm_rect *rects)
2054{
2055 struct drm_device *dev = &dev_priv->drm;
2056 struct vmw_display_unit *du;
2057 struct drm_connector *con;
2058 struct drm_connector_list_iter conn_iter;
2059 struct drm_modeset_acquire_ctx ctx;
2060 struct drm_crtc *crtc;
2061 int ret;
2062
2063 /* Currently gui_x/y is protected with the crtc mutex */
2064 mutex_lock(&dev->mode_config.mutex);
2065 drm_modeset_acquire_init(&ctx, 0);
2066retry:
2067 drm_for_each_crtc(crtc, dev) {
2068 ret = drm_modeset_lock(&crtc->mutex, &ctx);
2069 if (ret < 0) {
2070 if (ret == -EDEADLK) {
2071 drm_modeset_backoff(&ctx);
2072 goto retry;
2073 }
2074 goto out_fini;
2075 }
2076 }
2077
2078 drm_connector_list_iter_begin(dev, &conn_iter);
2079 drm_for_each_connector_iter(con, &conn_iter) {
2080 du = vmw_connector_to_du(con);
2081 if (num_rects > du->unit) {
2082 du->pref_width = drm_rect_width(&rects[du->unit]);
2083 du->pref_height = drm_rect_height(&rects[du->unit]);
2084 du->pref_active = true;
2085 du->gui_x = rects[du->unit].x1;
2086 du->gui_y = rects[du->unit].y1;
2087 } else {
2088 du->pref_width = VMWGFX_MIN_INITIAL_WIDTH;
2089 du->pref_height = VMWGFX_MIN_INITIAL_HEIGHT;
2090 du->pref_active = false;
2091 du->gui_x = 0;
2092 du->gui_y = 0;
2093 }
2094 }
2095 drm_connector_list_iter_end(&conn_iter);
2096
2097 list_for_each_entry(con, &dev->mode_config.connector_list, head) {
2098 du = vmw_connector_to_du(con);
2099 if (num_rects > du->unit) {
2100 drm_object_property_set_value
2101 (&con->base, dev->mode_config.suggested_x_property,
2102 du->gui_x);
2103 drm_object_property_set_value
2104 (&con->base, dev->mode_config.suggested_y_property,
2105 du->gui_y);
2106 } else {
2107 drm_object_property_set_value
2108 (&con->base, dev->mode_config.suggested_x_property,
2109 0);
2110 drm_object_property_set_value
2111 (&con->base, dev->mode_config.suggested_y_property,
2112 0);
2113 }
2114 con->status = vmw_du_connector_detect(con, true);
2115 }
2116out_fini:
2117 drm_modeset_drop_locks(&ctx);
2118 drm_modeset_acquire_fini(&ctx);
2119 mutex_unlock(&dev->mode_config.mutex);
2120
2121 drm_sysfs_hotplug_event(dev);
2122
2123 return 0;
2124}
2125
2126int vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
2127 u16 *r, u16 *g, u16 *b,
2128 uint32_t size,
2129 struct drm_modeset_acquire_ctx *ctx)
2130{
2131 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
2132 int i;
2133
2134 for (i = 0; i < size; i++) {
2135 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
2136 r[i], g[i], b[i]);
2137 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
2138 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
2139 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
2140 }
2141
2142 return 0;
2143}
2144
2145int vmw_du_connector_dpms(struct drm_connector *connector, int mode)
2146{
2147 return 0;
2148}
2149
2150enum drm_connector_status
2151vmw_du_connector_detect(struct drm_connector *connector, bool force)
2152{
2153 uint32_t num_displays;
2154 struct drm_device *dev = connector->dev;
2155 struct vmw_private *dev_priv = vmw_priv(dev);
2156 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2157
2158 num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
2159
2160 return ((vmw_connector_to_du(connector)->unit < num_displays &&
2161 du->pref_active) ?
2162 connector_status_connected : connector_status_disconnected);
2163}
2164
2165/**
2166 * vmw_guess_mode_timing - Provide fake timings for a
2167 * 60Hz vrefresh mode.
2168 *
2169 * @mode: Pointer to a struct drm_display_mode with hdisplay and vdisplay
2170 * members filled in.
2171 */
2172void vmw_guess_mode_timing(struct drm_display_mode *mode)
2173{
2174 mode->hsync_start = mode->hdisplay + 50;
2175 mode->hsync_end = mode->hsync_start + 50;
2176 mode->htotal = mode->hsync_end + 50;
2177
2178 mode->vsync_start = mode->vdisplay + 50;
2179 mode->vsync_end = mode->vsync_start + 50;
2180 mode->vtotal = mode->vsync_end + 50;
2181
2182 mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
2183}
2184
2185
2186/**
2187 * vmw_kms_update_layout_ioctl - Handler for DRM_VMW_UPDATE_LAYOUT ioctl
2188 * @dev: drm device for the ioctl
2189 * @data: data pointer for the ioctl
2190 * @file_priv: drm file for the ioctl call
2191 *
2192 * Update preferred topology of display unit as per ioctl request. The topology
2193 * is expressed as array of drm_vmw_rect.
2194 * e.g.
2195 * [0 0 640 480] [640 0 800 600] [0 480 640 480]
2196 *
2197 * NOTE:
2198 * The x and y offset (upper left) in drm_vmw_rect cannot be less than 0. Beside
2199 * device limit on topology, x + w and y + h (lower right) cannot be greater
2200 * than INT_MAX. So topology beyond these limits will return with error.
2201 *
2202 * Returns:
2203 * Zero on success, negative errno on failure.
2204 */
2205int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
2206 struct drm_file *file_priv)
2207{
2208 struct vmw_private *dev_priv = vmw_priv(dev);
2209 struct drm_mode_config *mode_config = &dev->mode_config;
2210 struct drm_vmw_update_layout_arg *arg =
2211 (struct drm_vmw_update_layout_arg *)data;
2212 const void __user *user_rects;
2213 struct drm_vmw_rect *rects;
2214 struct drm_rect *drm_rects;
2215 unsigned rects_size;
2216 int ret, i;
2217
2218 if (!arg->num_outputs) {
2219 struct drm_rect def_rect = {0, 0,
2220 VMWGFX_MIN_INITIAL_WIDTH,
2221 VMWGFX_MIN_INITIAL_HEIGHT};
2222 vmw_du_update_layout(dev_priv, 1, &def_rect);
2223 return 0;
2224 } else if (arg->num_outputs > VMWGFX_NUM_DISPLAY_UNITS) {
2225 return -E2BIG;
2226 }
2227
2228 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2229 rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2230 GFP_KERNEL);
2231 if (unlikely(!rects))
2232 return -ENOMEM;
2233
2234 user_rects = (void __user *)(unsigned long)arg->rects;
2235 ret = copy_from_user(rects, user_rects, rects_size);
2236 if (unlikely(ret != 0)) {
2237 DRM_ERROR("Failed to get rects.\n");
2238 ret = -EFAULT;
2239 goto out_free;
2240 }
2241
2242 drm_rects = (struct drm_rect *)rects;
2243
2244 VMW_DEBUG_KMS("Layout count = %u\n", arg->num_outputs);
2245 for (i = 0; i < arg->num_outputs; i++) {
2246 struct drm_vmw_rect curr_rect;
2247
2248 /* Verify user-space for overflow as kernel use drm_rect */
2249 if ((rects[i].x + rects[i].w > INT_MAX) ||
2250 (rects[i].y + rects[i].h > INT_MAX)) {
2251 ret = -ERANGE;
2252 goto out_free;
2253 }
2254
2255 curr_rect = rects[i];
2256 drm_rects[i].x1 = curr_rect.x;
2257 drm_rects[i].y1 = curr_rect.y;
2258 drm_rects[i].x2 = curr_rect.x + curr_rect.w;
2259 drm_rects[i].y2 = curr_rect.y + curr_rect.h;
2260
2261 VMW_DEBUG_KMS(" x1 = %d y1 = %d x2 = %d y2 = %d\n",
2262 drm_rects[i].x1, drm_rects[i].y1,
2263 drm_rects[i].x2, drm_rects[i].y2);
2264
2265 /*
2266 * Currently this check is limiting the topology within
2267 * mode_config->max (which actually is max texture size
2268 * supported by virtual device). This limit is here to address
2269 * window managers that create a big framebuffer for whole
2270 * topology.
2271 */
2272 if (drm_rects[i].x1 < 0 || drm_rects[i].y1 < 0 ||
2273 drm_rects[i].x2 > mode_config->max_width ||
2274 drm_rects[i].y2 > mode_config->max_height) {
2275 VMW_DEBUG_KMS("Invalid layout %d %d %d %d\n",
2276 drm_rects[i].x1, drm_rects[i].y1,
2277 drm_rects[i].x2, drm_rects[i].y2);
2278 ret = -EINVAL;
2279 goto out_free;
2280 }
2281 }
2282
2283 ret = vmw_kms_check_display_memory(dev, arg->num_outputs, drm_rects);
2284
2285 if (ret == 0)
2286 vmw_du_update_layout(dev_priv, arg->num_outputs, drm_rects);
2287
2288out_free:
2289 kfree(rects);
2290 return ret;
2291}
2292
2293/**
2294 * vmw_kms_helper_dirty - Helper to build commands and perform actions based
2295 * on a set of cliprects and a set of display units.
2296 *
2297 * @dev_priv: Pointer to a device private structure.
2298 * @framebuffer: Pointer to the framebuffer on which to perform the actions.
2299 * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL.
2300 * Cliprects are given in framebuffer coordinates.
2301 * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must
2302 * be NULL. Cliprects are given in source coordinates.
2303 * @dest_x: X coordinate offset for the crtc / destination clip rects.
2304 * @dest_y: Y coordinate offset for the crtc / destination clip rects.
2305 * @num_clips: Number of cliprects in the @clips or @vclips array.
2306 * @increment: Integer with which to increment the clip counter when looping.
2307 * Used to skip a predetermined number of clip rects.
2308 * @dirty: Closure structure. See the description of struct vmw_kms_dirty.
2309 */
2310int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
2311 struct vmw_framebuffer *framebuffer,
2312 const struct drm_clip_rect *clips,
2313 const struct drm_vmw_rect *vclips,
2314 s32 dest_x, s32 dest_y,
2315 int num_clips,
2316 int increment,
2317 struct vmw_kms_dirty *dirty)
2318{
2319 struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
2320 struct drm_crtc *crtc;
2321 u32 num_units = 0;
2322 u32 i, k;
2323
2324 dirty->dev_priv = dev_priv;
2325
2326 /* If crtc is passed, no need to iterate over other display units */
2327 if (dirty->crtc) {
2328 units[num_units++] = vmw_crtc_to_du(dirty->crtc);
2329 } else {
2330 list_for_each_entry(crtc, &dev_priv->drm.mode_config.crtc_list,
2331 head) {
2332 struct drm_plane *plane = crtc->primary;
2333
2334 if (plane->state->fb == &framebuffer->base)
2335 units[num_units++] = vmw_crtc_to_du(crtc);
2336 }
2337 }
2338
2339 for (k = 0; k < num_units; k++) {
2340 struct vmw_display_unit *unit = units[k];
2341 s32 crtc_x = unit->crtc.x;
2342 s32 crtc_y = unit->crtc.y;
2343 s32 crtc_width = unit->crtc.mode.hdisplay;
2344 s32 crtc_height = unit->crtc.mode.vdisplay;
2345 const struct drm_clip_rect *clips_ptr = clips;
2346 const struct drm_vmw_rect *vclips_ptr = vclips;
2347
2348 dirty->unit = unit;
2349 if (dirty->fifo_reserve_size > 0) {
2350 dirty->cmd = VMW_CMD_RESERVE(dev_priv,
2351 dirty->fifo_reserve_size);
2352 if (!dirty->cmd)
2353 return -ENOMEM;
2354
2355 memset(dirty->cmd, 0, dirty->fifo_reserve_size);
2356 }
2357 dirty->num_hits = 0;
2358 for (i = 0; i < num_clips; i++, clips_ptr += increment,
2359 vclips_ptr += increment) {
2360 s32 clip_left;
2361 s32 clip_top;
2362
2363 /*
2364 * Select clip array type. Note that integer type
2365 * in @clips is unsigned short, whereas in @vclips
2366 * it's 32-bit.
2367 */
2368 if (clips) {
2369 dirty->fb_x = (s32) clips_ptr->x1;
2370 dirty->fb_y = (s32) clips_ptr->y1;
2371 dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x -
2372 crtc_x;
2373 dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y -
2374 crtc_y;
2375 } else {
2376 dirty->fb_x = vclips_ptr->x;
2377 dirty->fb_y = vclips_ptr->y;
2378 dirty->unit_x2 = dirty->fb_x + vclips_ptr->w +
2379 dest_x - crtc_x;
2380 dirty->unit_y2 = dirty->fb_y + vclips_ptr->h +
2381 dest_y - crtc_y;
2382 }
2383
2384 dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x;
2385 dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y;
2386
2387 /* Skip this clip if it's outside the crtc region */
2388 if (dirty->unit_x1 >= crtc_width ||
2389 dirty->unit_y1 >= crtc_height ||
2390 dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0)
2391 continue;
2392
2393 /* Clip right and bottom to crtc limits */
2394 dirty->unit_x2 = min_t(s32, dirty->unit_x2,
2395 crtc_width);
2396 dirty->unit_y2 = min_t(s32, dirty->unit_y2,
2397 crtc_height);
2398
2399 /* Clip left and top to crtc limits */
2400 clip_left = min_t(s32, dirty->unit_x1, 0);
2401 clip_top = min_t(s32, dirty->unit_y1, 0);
2402 dirty->unit_x1 -= clip_left;
2403 dirty->unit_y1 -= clip_top;
2404 dirty->fb_x -= clip_left;
2405 dirty->fb_y -= clip_top;
2406
2407 dirty->clip(dirty);
2408 }
2409
2410 dirty->fifo_commit(dirty);
2411 }
2412
2413 return 0;
2414}
2415
2416/**
2417 * vmw_kms_helper_validation_finish - Helper for post KMS command submission
2418 * cleanup and fencing
2419 * @dev_priv: Pointer to the device-private struct
2420 * @file_priv: Pointer identifying the client when user-space fencing is used
2421 * @ctx: Pointer to the validation context
2422 * @out_fence: If non-NULL, returned refcounted fence-pointer
2423 * @user_fence_rep: If non-NULL, pointer to user-space address area
2424 * in which to copy user-space fence info
2425 */
2426void vmw_kms_helper_validation_finish(struct vmw_private *dev_priv,
2427 struct drm_file *file_priv,
2428 struct vmw_validation_context *ctx,
2429 struct vmw_fence_obj **out_fence,
2430 struct drm_vmw_fence_rep __user *
2431 user_fence_rep)
2432{
2433 struct vmw_fence_obj *fence = NULL;
2434 uint32_t handle = 0;
2435 int ret = 0;
2436
2437 if (file_priv || user_fence_rep || vmw_validation_has_bos(ctx) ||
2438 out_fence)
2439 ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
2440 file_priv ? &handle : NULL);
2441 vmw_validation_done(ctx, fence);
2442 if (file_priv)
2443 vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv),
2444 ret, user_fence_rep, fence,
2445 handle, -1);
2446 if (out_fence)
2447 *out_fence = fence;
2448 else
2449 vmw_fence_obj_unreference(&fence);
2450}
2451
2452/**
2453 * vmw_kms_create_implicit_placement_property - Set up the implicit placement
2454 * property.
2455 *
2456 * @dev_priv: Pointer to a device private struct.
2457 *
2458 * Sets up the implicit placement property unless it's already set up.
2459 */
2460void
2461vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv)
2462{
2463 if (dev_priv->implicit_placement_property)
2464 return;
2465
2466 dev_priv->implicit_placement_property =
2467 drm_property_create_range(&dev_priv->drm,
2468 DRM_MODE_PROP_IMMUTABLE,
2469 "implicit_placement", 0, 1);
2470}
2471
2472/**
2473 * vmw_kms_suspend - Save modesetting state and turn modesetting off.
2474 *
2475 * @dev: Pointer to the drm device
2476 * Return: 0 on success. Negative error code on failure.
2477 */
2478int vmw_kms_suspend(struct drm_device *dev)
2479{
2480 struct vmw_private *dev_priv = vmw_priv(dev);
2481
2482 dev_priv->suspend_state = drm_atomic_helper_suspend(dev);
2483 if (IS_ERR(dev_priv->suspend_state)) {
2484 int ret = PTR_ERR(dev_priv->suspend_state);
2485
2486 DRM_ERROR("Failed kms suspend: %d\n", ret);
2487 dev_priv->suspend_state = NULL;
2488
2489 return ret;
2490 }
2491
2492 return 0;
2493}
2494
2495
2496/**
2497 * vmw_kms_resume - Re-enable modesetting and restore state
2498 *
2499 * @dev: Pointer to the drm device
2500 * Return: 0 on success. Negative error code on failure.
2501 *
2502 * State is resumed from a previous vmw_kms_suspend(). It's illegal
2503 * to call this function without a previous vmw_kms_suspend().
2504 */
2505int vmw_kms_resume(struct drm_device *dev)
2506{
2507 struct vmw_private *dev_priv = vmw_priv(dev);
2508 int ret;
2509
2510 if (WARN_ON(!dev_priv->suspend_state))
2511 return 0;
2512
2513 ret = drm_atomic_helper_resume(dev, dev_priv->suspend_state);
2514 dev_priv->suspend_state = NULL;
2515
2516 return ret;
2517}
2518
2519/**
2520 * vmw_kms_lost_device - Notify kms that modesetting capabilities will be lost
2521 *
2522 * @dev: Pointer to the drm device
2523 */
2524void vmw_kms_lost_device(struct drm_device *dev)
2525{
2526 drm_atomic_helper_shutdown(dev);
2527}
2528
2529/**
2530 * vmw_du_helper_plane_update - Helper to do plane update on a display unit.
2531 * @update: The closure structure.
2532 *
2533 * Call this helper after setting callbacks in &vmw_du_update_plane to do plane
2534 * update on display unit.
2535 *
2536 * Return: 0 on success or a negative error code on failure.
2537 */
2538int vmw_du_helper_plane_update(struct vmw_du_update_plane *update)
2539{
2540 struct drm_plane_state *state = update->plane->state;
2541 struct drm_plane_state *old_state = update->old_state;
2542 struct drm_atomic_helper_damage_iter iter;
2543 struct drm_rect clip;
2544 struct drm_rect bb;
2545 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
2546 uint32_t reserved_size = 0;
2547 uint32_t submit_size = 0;
2548 uint32_t curr_size = 0;
2549 uint32_t num_hits = 0;
2550 void *cmd_start;
2551 char *cmd_next;
2552 int ret;
2553
2554 /*
2555 * Iterate in advance to check if really need plane update and find the
2556 * number of clips that actually are in plane src for fifo allocation.
2557 */
2558 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
2559 drm_atomic_for_each_plane_damage(&iter, &clip)
2560 num_hits++;
2561
2562 if (num_hits == 0)
2563 return 0;
2564
2565 if (update->vfb->bo) {
2566 struct vmw_framebuffer_bo *vfbbo =
2567 container_of(update->vfb, typeof(*vfbbo), base);
2568
2569 /*
2570 * For screen targets we want a mappable bo, for everything else we want
2571 * accelerated i.e. host backed (vram or gmr) bo. If the display unit
2572 * is not screen target then mob's shouldn't be available.
2573 */
2574 if (update->dev_priv->active_display_unit == vmw_du_screen_target) {
2575 vmw_bo_placement_set(vfbbo->buffer,
2576 VMW_BO_DOMAIN_SYS | VMW_BO_DOMAIN_MOB | VMW_BO_DOMAIN_GMR,
2577 VMW_BO_DOMAIN_SYS | VMW_BO_DOMAIN_MOB | VMW_BO_DOMAIN_GMR);
2578 } else {
2579 WARN_ON(update->dev_priv->has_mob);
2580 vmw_bo_placement_set_default_accelerated(vfbbo->buffer);
2581 }
2582 ret = vmw_validation_add_bo(&val_ctx, vfbbo->buffer);
2583 } else {
2584 struct vmw_framebuffer_surface *vfbs =
2585 container_of(update->vfb, typeof(*vfbs), base);
2586 struct vmw_surface *surf = vmw_user_object_surface(&vfbs->uo);
2587
2588 ret = vmw_validation_add_resource(&val_ctx, &surf->res,
2589 0, VMW_RES_DIRTY_NONE, NULL,
2590 NULL);
2591 }
2592
2593 if (ret)
2594 return ret;
2595
2596 ret = vmw_validation_prepare(&val_ctx, update->mutex, update->intr);
2597 if (ret)
2598 goto out_unref;
2599
2600 reserved_size = update->calc_fifo_size(update, num_hits);
2601 cmd_start = VMW_CMD_RESERVE(update->dev_priv, reserved_size);
2602 if (!cmd_start) {
2603 ret = -ENOMEM;
2604 goto out_revert;
2605 }
2606
2607 cmd_next = cmd_start;
2608
2609 if (update->post_prepare) {
2610 curr_size = update->post_prepare(update, cmd_next);
2611 cmd_next += curr_size;
2612 submit_size += curr_size;
2613 }
2614
2615 if (update->pre_clip) {
2616 curr_size = update->pre_clip(update, cmd_next, num_hits);
2617 cmd_next += curr_size;
2618 submit_size += curr_size;
2619 }
2620
2621 bb.x1 = INT_MAX;
2622 bb.y1 = INT_MAX;
2623 bb.x2 = INT_MIN;
2624 bb.y2 = INT_MIN;
2625
2626 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
2627 drm_atomic_for_each_plane_damage(&iter, &clip) {
2628 uint32_t fb_x = clip.x1;
2629 uint32_t fb_y = clip.y1;
2630
2631 vmw_du_translate_to_crtc(state, &clip);
2632 if (update->clip) {
2633 curr_size = update->clip(update, cmd_next, &clip, fb_x,
2634 fb_y);
2635 cmd_next += curr_size;
2636 submit_size += curr_size;
2637 }
2638 bb.x1 = min_t(int, bb.x1, clip.x1);
2639 bb.y1 = min_t(int, bb.y1, clip.y1);
2640 bb.x2 = max_t(int, bb.x2, clip.x2);
2641 bb.y2 = max_t(int, bb.y2, clip.y2);
2642 }
2643
2644 curr_size = update->post_clip(update, cmd_next, &bb);
2645 submit_size += curr_size;
2646
2647 if (reserved_size < submit_size)
2648 submit_size = 0;
2649
2650 vmw_cmd_commit(update->dev_priv, submit_size);
2651
2652 vmw_kms_helper_validation_finish(update->dev_priv, NULL, &val_ctx,
2653 update->out_fence, NULL);
2654 return ret;
2655
2656out_revert:
2657 vmw_validation_revert(&val_ctx);
2658
2659out_unref:
2660 vmw_validation_unref_lists(&val_ctx);
2661 return ret;
2662}
2663
2664/**
2665 * vmw_connector_mode_valid - implements drm_connector_helper_funcs.mode_valid callback
2666 *
2667 * @connector: the drm connector, part of a DU container
2668 * @mode: drm mode to check
2669 *
2670 * Returns MODE_OK on success, or a drm_mode_status error code.
2671 */
2672enum drm_mode_status vmw_connector_mode_valid(struct drm_connector *connector,
2673 struct drm_display_mode *mode)
2674{
2675 enum drm_mode_status ret;
2676 struct drm_device *dev = connector->dev;
2677 struct vmw_private *dev_priv = vmw_priv(dev);
2678 u32 assumed_cpp = 4;
2679
2680 if (dev_priv->assume_16bpp)
2681 assumed_cpp = 2;
2682
2683 ret = drm_mode_validate_size(mode, dev_priv->texture_max_width,
2684 dev_priv->texture_max_height);
2685 if (ret != MODE_OK)
2686 return ret;
2687
2688 if (!vmw_kms_validate_mode_vram(dev_priv,
2689 mode->hdisplay * assumed_cpp,
2690 mode->vdisplay))
2691 return MODE_MEM;
2692
2693 return MODE_OK;
2694}
2695
2696/**
2697 * vmw_connector_get_modes - implements drm_connector_helper_funcs.get_modes callback
2698 *
2699 * @connector: the drm connector, part of a DU container
2700 *
2701 * Returns the number of added modes.
2702 */
2703int vmw_connector_get_modes(struct drm_connector *connector)
2704{
2705 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2706 struct drm_device *dev = connector->dev;
2707 struct vmw_private *dev_priv = vmw_priv(dev);
2708 struct drm_display_mode *mode = NULL;
2709 struct drm_display_mode prefmode = { DRM_MODE("preferred",
2710 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
2711 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2712 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
2713 };
2714 u32 max_width;
2715 u32 max_height;
2716 u32 num_modes;
2717
2718 /* Add preferred mode */
2719 mode = drm_mode_duplicate(dev, &prefmode);
2720 if (!mode)
2721 return 0;
2722
2723 mode->hdisplay = du->pref_width;
2724 mode->vdisplay = du->pref_height;
2725 vmw_guess_mode_timing(mode);
2726 drm_mode_set_name(mode);
2727
2728 drm_mode_probed_add(connector, mode);
2729 drm_dbg_kms(dev, "preferred mode " DRM_MODE_FMT "\n", DRM_MODE_ARG(mode));
2730
2731 /* Probe connector for all modes not exceeding our geom limits */
2732 max_width = dev_priv->texture_max_width;
2733 max_height = dev_priv->texture_max_height;
2734
2735 if (dev_priv->active_display_unit == vmw_du_screen_target) {
2736 max_width = min(dev_priv->stdu_max_width, max_width);
2737 max_height = min(dev_priv->stdu_max_height, max_height);
2738 }
2739
2740 num_modes = 1 + drm_add_modes_noedid(connector, max_width, max_height);
2741
2742 return num_modes;
2743}
2744
2745struct vmw_user_object *vmw_user_object_ref(struct vmw_user_object *uo)
2746{
2747 if (uo->buffer)
2748 vmw_user_bo_ref(uo->buffer);
2749 else if (uo->surface)
2750 vmw_surface_reference(uo->surface);
2751 return uo;
2752}
2753
2754void vmw_user_object_unref(struct vmw_user_object *uo)
2755{
2756 if (uo->buffer)
2757 vmw_user_bo_unref(&uo->buffer);
2758 else if (uo->surface)
2759 vmw_surface_unreference(&uo->surface);
2760}
2761
2762struct vmw_bo *
2763vmw_user_object_buffer(struct vmw_user_object *uo)
2764{
2765 if (uo->buffer)
2766 return uo->buffer;
2767 else if (uo->surface)
2768 return uo->surface->res.guest_memory_bo;
2769 return NULL;
2770}
2771
2772struct vmw_surface *
2773vmw_user_object_surface(struct vmw_user_object *uo)
2774{
2775 if (uo->buffer)
2776 return uo->buffer->dumb_surface;
2777 return uo->surface;
2778}
2779
2780void *vmw_user_object_map(struct vmw_user_object *uo)
2781{
2782 struct vmw_bo *bo = vmw_user_object_buffer(uo);
2783
2784 WARN_ON(!bo);
2785 return vmw_bo_map_and_cache(bo);
2786}
2787
2788void *vmw_user_object_map_size(struct vmw_user_object *uo, size_t size)
2789{
2790 struct vmw_bo *bo = vmw_user_object_buffer(uo);
2791
2792 WARN_ON(!bo);
2793 return vmw_bo_map_and_cache_size(bo, size);
2794}
2795
2796void vmw_user_object_unmap(struct vmw_user_object *uo)
2797{
2798 struct vmw_bo *bo = vmw_user_object_buffer(uo);
2799 int ret;
2800
2801 WARN_ON(!bo);
2802
2803 /* Fence the mob creation so we are guarateed to have the mob */
2804 ret = ttm_bo_reserve(&bo->tbo, false, false, NULL);
2805 if (ret != 0)
2806 return;
2807
2808 vmw_bo_unmap(bo);
2809 vmw_bo_pin_reserved(bo, false);
2810
2811 ttm_bo_unreserve(&bo->tbo);
2812}
2813
2814bool vmw_user_object_is_mapped(struct vmw_user_object *uo)
2815{
2816 struct vmw_bo *bo;
2817
2818 if (!uo || vmw_user_object_is_null(uo))
2819 return false;
2820
2821 bo = vmw_user_object_buffer(uo);
2822
2823 if (WARN_ON(!bo))
2824 return false;
2825
2826 WARN_ON(bo->map.bo && !bo->map.virtual);
2827 return bo->map.virtual;
2828}
2829
2830bool vmw_user_object_is_null(struct vmw_user_object *uo)
2831{
2832 return !uo->buffer && !uo->surface;
2833}