1 // SPDX-License-Identifier: GPL-2.0 OR MIT
2 /**************************************************************************
3 *
4 * Copyright 2009-2015 VMware, Inc., Palo Alto, CA., USA
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #include <drm/drm_atomic.h>
29 #include <drm/drm_atomic_helper.h>
30 #include <drm/drm_damage_helper.h>
31 #include <drm/drm_fourcc.h>
32 #include <drm/drm_plane_helper.h>
33 #include <drm/drm_rect.h>
34 #include <drm/drm_sysfs.h>
35 #include <drm/drm_vblank.h>
36
37 #include "vmwgfx_kms.h"
38
vmw_du_cleanup(struct vmw_display_unit * du)39 void vmw_du_cleanup(struct vmw_display_unit *du)
40 {
41 drm_plane_cleanup(&du->primary);
42 drm_plane_cleanup(&du->cursor);
43
44 drm_connector_unregister(&du->connector);
45 drm_crtc_cleanup(&du->crtc);
46 drm_encoder_cleanup(&du->encoder);
47 drm_connector_cleanup(&du->connector);
48 }
49
50 /*
51 * Display Unit Cursor functions
52 */
53
vmw_cursor_update_image(struct vmw_private * dev_priv,u32 * image,u32 width,u32 height,u32 hotspotX,u32 hotspotY)54 static int vmw_cursor_update_image(struct vmw_private *dev_priv,
55 u32 *image, u32 width, u32 height,
56 u32 hotspotX, u32 hotspotY)
57 {
58 struct {
59 u32 cmd;
60 SVGAFifoCmdDefineAlphaCursor cursor;
61 } *cmd;
62 u32 image_size = width * height * 4;
63 u32 cmd_size = sizeof(*cmd) + image_size;
64
65 if (!image)
66 return -EINVAL;
67
68 cmd = VMW_CMD_RESERVE(dev_priv, cmd_size);
69 if (unlikely(cmd == NULL))
70 return -ENOMEM;
71
72 memset(cmd, 0, sizeof(*cmd));
73
74 memcpy(&cmd[1], image, image_size);
75
76 cmd->cmd = SVGA_CMD_DEFINE_ALPHA_CURSOR;
77 cmd->cursor.id = 0;
78 cmd->cursor.width = width;
79 cmd->cursor.height = height;
80 cmd->cursor.hotspotX = hotspotX;
81 cmd->cursor.hotspotY = hotspotY;
82
83 vmw_cmd_commit_flush(dev_priv, cmd_size);
84
85 return 0;
86 }
87
vmw_cursor_update_bo(struct vmw_private * dev_priv,struct vmw_buffer_object * bo,u32 width,u32 height,u32 hotspotX,u32 hotspotY)88 static int vmw_cursor_update_bo(struct vmw_private *dev_priv,
89 struct vmw_buffer_object *bo,
90 u32 width, u32 height,
91 u32 hotspotX, u32 hotspotY)
92 {
93 struct ttm_bo_kmap_obj map;
94 unsigned long kmap_offset;
95 unsigned long kmap_num;
96 void *virtual;
97 bool dummy;
98 int ret;
99
100 kmap_offset = 0;
101 kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
102
103 ret = ttm_bo_reserve(&bo->base, true, false, NULL);
104 if (unlikely(ret != 0)) {
105 DRM_ERROR("reserve failed\n");
106 return -EINVAL;
107 }
108
109 ret = ttm_bo_kmap(&bo->base, kmap_offset, kmap_num, &map);
110 if (unlikely(ret != 0))
111 goto err_unreserve;
112
113 virtual = ttm_kmap_obj_virtual(&map, &dummy);
114 ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
115 hotspotX, hotspotY);
116
117 ttm_bo_kunmap(&map);
118 err_unreserve:
119 ttm_bo_unreserve(&bo->base);
120
121 return ret;
122 }
123
124
vmw_cursor_update_position(struct vmw_private * dev_priv,bool show,int x,int y)125 static void vmw_cursor_update_position(struct vmw_private *dev_priv,
126 bool show, int x, int y)
127 {
128 uint32_t count;
129
130 spin_lock(&dev_priv->cursor_lock);
131 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_ON, show ? 1 : 0);
132 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_X, x);
133 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_Y, y);
134 count = vmw_fifo_mem_read(dev_priv, SVGA_FIFO_CURSOR_COUNT);
135 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_COUNT, ++count);
136 spin_unlock(&dev_priv->cursor_lock);
137 }
138
139
vmw_kms_cursor_snoop(struct vmw_surface * srf,struct ttm_object_file * tfile,struct ttm_buffer_object * bo,SVGA3dCmdHeader * header)140 void vmw_kms_cursor_snoop(struct vmw_surface *srf,
141 struct ttm_object_file *tfile,
142 struct ttm_buffer_object *bo,
143 SVGA3dCmdHeader *header)
144 {
145 struct ttm_bo_kmap_obj map;
146 unsigned long kmap_offset;
147 unsigned long kmap_num;
148 SVGA3dCopyBox *box;
149 unsigned box_count;
150 void *virtual;
151 bool dummy;
152 struct vmw_dma_cmd {
153 SVGA3dCmdHeader header;
154 SVGA3dCmdSurfaceDMA dma;
155 } *cmd;
156 int i, ret;
157
158 cmd = container_of(header, struct vmw_dma_cmd, header);
159
160 /* No snooper installed */
161 if (!srf->snooper.image)
162 return;
163
164 if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
165 DRM_ERROR("face and mipmap for cursors should never != 0\n");
166 return;
167 }
168
169 if (cmd->header.size < 64) {
170 DRM_ERROR("at least one full copy box must be given\n");
171 return;
172 }
173
174 box = (SVGA3dCopyBox *)&cmd[1];
175 box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
176 sizeof(SVGA3dCopyBox);
177
178 if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
179 box->x != 0 || box->y != 0 || box->z != 0 ||
180 box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
181 box->d != 1 || box_count != 1) {
182 /* TODO handle none page aligned offsets */
183 /* TODO handle more dst & src != 0 */
184 /* TODO handle more then one copy */
185 DRM_ERROR("Can't snoop dma request for cursor!\n");
186 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
187 box->srcx, box->srcy, box->srcz,
188 box->x, box->y, box->z,
189 box->w, box->h, box->d, box_count,
190 cmd->dma.guest.ptr.offset);
191 return;
192 }
193
194 kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
195 kmap_num = (64*64*4) >> PAGE_SHIFT;
196
197 ret = ttm_bo_reserve(bo, true, false, NULL);
198 if (unlikely(ret != 0)) {
199 DRM_ERROR("reserve failed\n");
200 return;
201 }
202
203 ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
204 if (unlikely(ret != 0))
205 goto err_unreserve;
206
207 virtual = ttm_kmap_obj_virtual(&map, &dummy);
208
209 if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
210 memcpy(srf->snooper.image, virtual, 64*64*4);
211 } else {
212 /* Image is unsigned pointer. */
213 for (i = 0; i < box->h; i++)
214 memcpy(srf->snooper.image + i * 64,
215 virtual + i * cmd->dma.guest.pitch,
216 box->w * 4);
217 }
218
219 srf->snooper.age++;
220
221 ttm_bo_kunmap(&map);
222 err_unreserve:
223 ttm_bo_unreserve(bo);
224 }
225
226 /**
227 * vmw_kms_legacy_hotspot_clear - Clear legacy hotspots
228 *
229 * @dev_priv: Pointer to the device private struct.
230 *
231 * Clears all legacy hotspots.
232 */
vmw_kms_legacy_hotspot_clear(struct vmw_private * dev_priv)233 void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv)
234 {
235 struct drm_device *dev = &dev_priv->drm;
236 struct vmw_display_unit *du;
237 struct drm_crtc *crtc;
238
239 drm_modeset_lock_all(dev);
240 drm_for_each_crtc(crtc, dev) {
241 du = vmw_crtc_to_du(crtc);
242
243 du->hotspot_x = 0;
244 du->hotspot_y = 0;
245 }
246 drm_modeset_unlock_all(dev);
247 }
248
vmw_kms_cursor_post_execbuf(struct vmw_private * dev_priv)249 void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
250 {
251 struct drm_device *dev = &dev_priv->drm;
252 struct vmw_display_unit *du;
253 struct drm_crtc *crtc;
254
255 mutex_lock(&dev->mode_config.mutex);
256
257 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
258 du = vmw_crtc_to_du(crtc);
259 if (!du->cursor_surface ||
260 du->cursor_age == du->cursor_surface->snooper.age)
261 continue;
262
263 du->cursor_age = du->cursor_surface->snooper.age;
264 vmw_cursor_update_image(dev_priv,
265 du->cursor_surface->snooper.image,
266 64, 64,
267 du->hotspot_x + du->core_hotspot_x,
268 du->hotspot_y + du->core_hotspot_y);
269 }
270
271 mutex_unlock(&dev->mode_config.mutex);
272 }
273
274
vmw_du_cursor_plane_destroy(struct drm_plane * plane)275 void vmw_du_cursor_plane_destroy(struct drm_plane *plane)
276 {
277 vmw_cursor_update_position(plane->dev->dev_private, false, 0, 0);
278
279 drm_plane_cleanup(plane);
280 }
281
282
vmw_du_primary_plane_destroy(struct drm_plane * plane)283 void vmw_du_primary_plane_destroy(struct drm_plane *plane)
284 {
285 drm_plane_cleanup(plane);
286
287 /* Planes are static in our case so we don't free it */
288 }
289
290
291 /**
292 * vmw_du_vps_unpin_surf - unpins resource associated with a framebuffer surface
293 *
294 * @vps: plane state associated with the display surface
295 * @unreference: true if we also want to unreference the display.
296 */
vmw_du_plane_unpin_surf(struct vmw_plane_state * vps,bool unreference)297 void vmw_du_plane_unpin_surf(struct vmw_plane_state *vps,
298 bool unreference)
299 {
300 if (vps->surf) {
301 if (vps->pinned) {
302 vmw_resource_unpin(&vps->surf->res);
303 vps->pinned--;
304 }
305
306 if (unreference) {
307 if (vps->pinned)
308 DRM_ERROR("Surface still pinned\n");
309 vmw_surface_unreference(&vps->surf);
310 }
311 }
312 }
313
314
315 /**
316 * vmw_du_plane_cleanup_fb - Unpins the cursor
317 *
318 * @plane: display plane
319 * @old_state: Contains the FB to clean up
320 *
321 * Unpins the framebuffer surface
322 *
323 * Returns 0 on success
324 */
325 void
vmw_du_plane_cleanup_fb(struct drm_plane * plane,struct drm_plane_state * old_state)326 vmw_du_plane_cleanup_fb(struct drm_plane *plane,
327 struct drm_plane_state *old_state)
328 {
329 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
330
331 vmw_du_plane_unpin_surf(vps, false);
332 }
333
334
335 /**
336 * vmw_du_cursor_plane_prepare_fb - Readies the cursor by referencing it
337 *
338 * @plane: display plane
339 * @new_state: info on the new plane state, including the FB
340 *
341 * Returns 0 on success
342 */
343 int
vmw_du_cursor_plane_prepare_fb(struct drm_plane * plane,struct drm_plane_state * new_state)344 vmw_du_cursor_plane_prepare_fb(struct drm_plane *plane,
345 struct drm_plane_state *new_state)
346 {
347 struct drm_framebuffer *fb = new_state->fb;
348 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
349
350
351 if (vps->surf)
352 vmw_surface_unreference(&vps->surf);
353
354 if (vps->bo)
355 vmw_bo_unreference(&vps->bo);
356
357 if (fb) {
358 if (vmw_framebuffer_to_vfb(fb)->bo) {
359 vps->bo = vmw_framebuffer_to_vfbd(fb)->buffer;
360 vmw_bo_reference(vps->bo);
361 } else {
362 vps->surf = vmw_framebuffer_to_vfbs(fb)->surface;
363 vmw_surface_reference(vps->surf);
364 }
365 }
366
367 return 0;
368 }
369
370
371 void
vmw_du_cursor_plane_atomic_update(struct drm_plane * plane,struct drm_atomic_state * state)372 vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
373 struct drm_atomic_state *state)
374 {
375 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
376 plane);
377 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
378 plane);
379 struct drm_crtc *crtc = new_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(new_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 (new_state->fb) {
391 hotspot_x += new_state->fb->hot_x;
392 hotspot_y += new_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 new_state->crtc_w,
408 new_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 = new_state->crtc_x + du->set_gui_x;
417 du->cursor_y = new_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 */
vmw_du_primary_plane_atomic_check(struct drm_plane * plane,struct drm_atomic_state * state)443 int vmw_du_primary_plane_atomic_check(struct drm_plane *plane,
444 struct drm_atomic_state *state)
445 {
446 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
447 plane);
448 struct drm_crtc_state *crtc_state = NULL;
449 struct drm_framebuffer *new_fb = new_state->fb;
450 int ret;
451
452 if (new_state->crtc)
453 crtc_state = drm_atomic_get_new_crtc_state(state,
454 new_state->crtc);
455
456 ret = drm_atomic_helper_check_plane_state(new_state, crtc_state,
457 DRM_PLANE_HELPER_NO_SCALING,
458 DRM_PLANE_HELPER_NO_SCALING,
459 false, true);
460
461 if (!ret && new_fb) {
462 struct drm_crtc *crtc = new_state->crtc;
463 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
464
465 vmw_connector_state_to_vcs(du->connector.state);
466 }
467
468
469 return ret;
470 }
471
472
473 /**
474 * vmw_du_cursor_plane_atomic_check - check if the new state is okay
475 *
476 * @plane: cursor plane
477 * @new_state: info on the new plane state
478 *
479 * This is a chance to fail if the new cursor state does not fit
480 * our requirements.
481 *
482 * Returns 0 on success
483 */
vmw_du_cursor_plane_atomic_check(struct drm_plane * plane,struct drm_atomic_state * state)484 int vmw_du_cursor_plane_atomic_check(struct drm_plane *plane,
485 struct drm_atomic_state *state)
486 {
487 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
488 plane);
489 int ret = 0;
490 struct drm_crtc_state *crtc_state = NULL;
491 struct vmw_surface *surface = NULL;
492 struct drm_framebuffer *fb = new_state->fb;
493
494 if (new_state->crtc)
495 crtc_state = drm_atomic_get_new_crtc_state(new_state->state,
496 new_state->crtc);
497
498 ret = drm_atomic_helper_check_plane_state(new_state, crtc_state,
499 DRM_PLANE_HELPER_NO_SCALING,
500 DRM_PLANE_HELPER_NO_SCALING,
501 true, true);
502 if (ret)
503 return ret;
504
505 /* Turning off */
506 if (!fb)
507 return 0;
508
509 /* A lot of the code assumes this */
510 if (new_state->crtc_w != 64 || new_state->crtc_h != 64) {
511 DRM_ERROR("Invalid cursor dimensions (%d, %d)\n",
512 new_state->crtc_w, new_state->crtc_h);
513 ret = -EINVAL;
514 }
515
516 if (!vmw_framebuffer_to_vfb(fb)->bo)
517 surface = vmw_framebuffer_to_vfbs(fb)->surface;
518
519 if (surface && !surface->snooper.image) {
520 DRM_ERROR("surface not suitable for cursor\n");
521 ret = -EINVAL;
522 }
523
524 return ret;
525 }
526
527
vmw_du_crtc_atomic_check(struct drm_crtc * crtc,struct drm_atomic_state * state)528 int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
529 struct drm_atomic_state *state)
530 {
531 struct drm_crtc_state *new_state = drm_atomic_get_new_crtc_state(state,
532 crtc);
533 struct vmw_display_unit *du = vmw_crtc_to_du(new_state->crtc);
534 int connector_mask = drm_connector_mask(&du->connector);
535 bool has_primary = new_state->plane_mask &
536 drm_plane_mask(crtc->primary);
537
538 /* We always want to have an active plane with an active CRTC */
539 if (has_primary != new_state->enable)
540 return -EINVAL;
541
542
543 if (new_state->connector_mask != connector_mask &&
544 new_state->connector_mask != 0) {
545 DRM_ERROR("Invalid connectors configuration\n");
546 return -EINVAL;
547 }
548
549 /*
550 * Our virtual device does not have a dot clock, so use the logical
551 * clock value as the dot clock.
552 */
553 if (new_state->mode.crtc_clock == 0)
554 new_state->adjusted_mode.crtc_clock = new_state->mode.clock;
555
556 return 0;
557 }
558
559
vmw_du_crtc_atomic_begin(struct drm_crtc * crtc,struct drm_atomic_state * state)560 void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
561 struct drm_atomic_state *state)
562 {
563 }
564
565
vmw_du_crtc_atomic_flush(struct drm_crtc * crtc,struct drm_atomic_state * state)566 void vmw_du_crtc_atomic_flush(struct drm_crtc *crtc,
567 struct drm_atomic_state *state)
568 {
569 struct drm_pending_vblank_event *event = crtc->state->event;
570
571 if (event) {
572 crtc->state->event = NULL;
573
574 spin_lock_irq(&crtc->dev->event_lock);
575 drm_crtc_send_vblank_event(crtc, event);
576 spin_unlock_irq(&crtc->dev->event_lock);
577 }
578 }
579
580
581 /**
582 * vmw_du_crtc_duplicate_state - duplicate crtc state
583 * @crtc: DRM crtc
584 *
585 * Allocates and returns a copy of the crtc state (both common and
586 * vmw-specific) for the specified crtc.
587 *
588 * Returns: The newly allocated crtc state, or NULL on failure.
589 */
590 struct drm_crtc_state *
vmw_du_crtc_duplicate_state(struct drm_crtc * crtc)591 vmw_du_crtc_duplicate_state(struct drm_crtc *crtc)
592 {
593 struct drm_crtc_state *state;
594 struct vmw_crtc_state *vcs;
595
596 if (WARN_ON(!crtc->state))
597 return NULL;
598
599 vcs = kmemdup(crtc->state, sizeof(*vcs), GFP_KERNEL);
600
601 if (!vcs)
602 return NULL;
603
604 state = &vcs->base;
605
606 __drm_atomic_helper_crtc_duplicate_state(crtc, state);
607
608 return state;
609 }
610
611
612 /**
613 * vmw_du_crtc_reset - creates a blank vmw crtc state
614 * @crtc: DRM crtc
615 *
616 * Resets the atomic state for @crtc by freeing the state pointer (which
617 * might be NULL, e.g. at driver load time) and allocating a new empty state
618 * object.
619 */
vmw_du_crtc_reset(struct drm_crtc * crtc)620 void vmw_du_crtc_reset(struct drm_crtc *crtc)
621 {
622 struct vmw_crtc_state *vcs;
623
624
625 if (crtc->state) {
626 __drm_atomic_helper_crtc_destroy_state(crtc->state);
627
628 kfree(vmw_crtc_state_to_vcs(crtc->state));
629 }
630
631 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
632
633 if (!vcs) {
634 DRM_ERROR("Cannot allocate vmw_crtc_state\n");
635 return;
636 }
637
638 __drm_atomic_helper_crtc_reset(crtc, &vcs->base);
639 }
640
641
642 /**
643 * vmw_du_crtc_destroy_state - destroy crtc state
644 * @crtc: DRM crtc
645 * @state: state object to destroy
646 *
647 * Destroys the crtc state (both common and vmw-specific) for the
648 * specified plane.
649 */
650 void
vmw_du_crtc_destroy_state(struct drm_crtc * crtc,struct drm_crtc_state * state)651 vmw_du_crtc_destroy_state(struct drm_crtc *crtc,
652 struct drm_crtc_state *state)
653 {
654 drm_atomic_helper_crtc_destroy_state(crtc, state);
655 }
656
657
658 /**
659 * vmw_du_plane_duplicate_state - duplicate plane state
660 * @plane: drm plane
661 *
662 * Allocates and returns a copy of the plane state (both common and
663 * vmw-specific) for the specified plane.
664 *
665 * Returns: The newly allocated plane state, or NULL on failure.
666 */
667 struct drm_plane_state *
vmw_du_plane_duplicate_state(struct drm_plane * plane)668 vmw_du_plane_duplicate_state(struct drm_plane *plane)
669 {
670 struct drm_plane_state *state;
671 struct vmw_plane_state *vps;
672
673 vps = kmemdup(plane->state, sizeof(*vps), GFP_KERNEL);
674
675 if (!vps)
676 return NULL;
677
678 vps->pinned = 0;
679 vps->cpp = 0;
680
681 /* Each ref counted resource needs to be acquired again */
682 if (vps->surf)
683 (void) vmw_surface_reference(vps->surf);
684
685 if (vps->bo)
686 (void) vmw_bo_reference(vps->bo);
687
688 state = &vps->base;
689
690 __drm_atomic_helper_plane_duplicate_state(plane, state);
691
692 return state;
693 }
694
695
696 /**
697 * vmw_du_plane_reset - creates a blank vmw plane state
698 * @plane: drm plane
699 *
700 * Resets the atomic state for @plane by freeing the state pointer (which might
701 * be NULL, e.g. at driver load time) and allocating a new empty state object.
702 */
vmw_du_plane_reset(struct drm_plane * plane)703 void vmw_du_plane_reset(struct drm_plane *plane)
704 {
705 struct vmw_plane_state *vps;
706
707
708 if (plane->state)
709 vmw_du_plane_destroy_state(plane, plane->state);
710
711 vps = kzalloc(sizeof(*vps), GFP_KERNEL);
712
713 if (!vps) {
714 DRM_ERROR("Cannot allocate vmw_plane_state\n");
715 return;
716 }
717
718 __drm_atomic_helper_plane_reset(plane, &vps->base);
719 }
720
721
722 /**
723 * vmw_du_plane_destroy_state - destroy plane state
724 * @plane: DRM plane
725 * @state: state object to destroy
726 *
727 * Destroys the plane state (both common and vmw-specific) for the
728 * specified plane.
729 */
730 void
vmw_du_plane_destroy_state(struct drm_plane * plane,struct drm_plane_state * state)731 vmw_du_plane_destroy_state(struct drm_plane *plane,
732 struct drm_plane_state *state)
733 {
734 struct vmw_plane_state *vps = vmw_plane_state_to_vps(state);
735
736
737 /* Should have been freed by cleanup_fb */
738 if (vps->surf)
739 vmw_surface_unreference(&vps->surf);
740
741 if (vps->bo)
742 vmw_bo_unreference(&vps->bo);
743
744 drm_atomic_helper_plane_destroy_state(plane, state);
745 }
746
747
748 /**
749 * vmw_du_connector_duplicate_state - duplicate connector state
750 * @connector: DRM connector
751 *
752 * Allocates and returns a copy of the connector state (both common and
753 * vmw-specific) for the specified connector.
754 *
755 * Returns: The newly allocated connector state, or NULL on failure.
756 */
757 struct drm_connector_state *
vmw_du_connector_duplicate_state(struct drm_connector * connector)758 vmw_du_connector_duplicate_state(struct drm_connector *connector)
759 {
760 struct drm_connector_state *state;
761 struct vmw_connector_state *vcs;
762
763 if (WARN_ON(!connector->state))
764 return NULL;
765
766 vcs = kmemdup(connector->state, sizeof(*vcs), GFP_KERNEL);
767
768 if (!vcs)
769 return NULL;
770
771 state = &vcs->base;
772
773 __drm_atomic_helper_connector_duplicate_state(connector, state);
774
775 return state;
776 }
777
778
779 /**
780 * vmw_du_connector_reset - creates a blank vmw connector state
781 * @connector: DRM connector
782 *
783 * Resets the atomic state for @connector by freeing the state pointer (which
784 * might be NULL, e.g. at driver load time) and allocating a new empty state
785 * object.
786 */
vmw_du_connector_reset(struct drm_connector * connector)787 void vmw_du_connector_reset(struct drm_connector *connector)
788 {
789 struct vmw_connector_state *vcs;
790
791
792 if (connector->state) {
793 __drm_atomic_helper_connector_destroy_state(connector->state);
794
795 kfree(vmw_connector_state_to_vcs(connector->state));
796 }
797
798 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
799
800 if (!vcs) {
801 DRM_ERROR("Cannot allocate vmw_connector_state\n");
802 return;
803 }
804
805 __drm_atomic_helper_connector_reset(connector, &vcs->base);
806 }
807
808
809 /**
810 * vmw_du_connector_destroy_state - destroy connector state
811 * @connector: DRM connector
812 * @state: state object to destroy
813 *
814 * Destroys the connector state (both common and vmw-specific) for the
815 * specified plane.
816 */
817 void
vmw_du_connector_destroy_state(struct drm_connector * connector,struct drm_connector_state * state)818 vmw_du_connector_destroy_state(struct drm_connector *connector,
819 struct drm_connector_state *state)
820 {
821 drm_atomic_helper_connector_destroy_state(connector, state);
822 }
823 /*
824 * Generic framebuffer code
825 */
826
827 /*
828 * Surface framebuffer code
829 */
830
vmw_framebuffer_surface_destroy(struct drm_framebuffer * framebuffer)831 static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
832 {
833 struct vmw_framebuffer_surface *vfbs =
834 vmw_framebuffer_to_vfbs(framebuffer);
835
836 drm_framebuffer_cleanup(framebuffer);
837 vmw_surface_unreference(&vfbs->surface);
838 if (vfbs->base.user_obj)
839 ttm_base_object_unref(&vfbs->base.user_obj);
840
841 kfree(vfbs);
842 }
843
844 /**
845 * vmw_kms_readback - Perform a readback from the screen system to
846 * a buffer-object backed framebuffer.
847 *
848 * @dev_priv: Pointer to the device private structure.
849 * @file_priv: Pointer to a struct drm_file identifying the caller.
850 * Must be set to NULL if @user_fence_rep is NULL.
851 * @vfb: Pointer to the buffer-object backed framebuffer.
852 * @user_fence_rep: User-space provided structure for fence information.
853 * Must be set to non-NULL if @file_priv is non-NULL.
854 * @vclips: Array of clip rects.
855 * @num_clips: Number of clip rects in @vclips.
856 *
857 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
858 * interrupted.
859 */
vmw_kms_readback(struct vmw_private * dev_priv,struct drm_file * file_priv,struct vmw_framebuffer * vfb,struct drm_vmw_fence_rep __user * user_fence_rep,struct drm_vmw_rect * vclips,uint32_t num_clips)860 int vmw_kms_readback(struct vmw_private *dev_priv,
861 struct drm_file *file_priv,
862 struct vmw_framebuffer *vfb,
863 struct drm_vmw_fence_rep __user *user_fence_rep,
864 struct drm_vmw_rect *vclips,
865 uint32_t num_clips)
866 {
867 switch (dev_priv->active_display_unit) {
868 case vmw_du_screen_object:
869 return vmw_kms_sou_readback(dev_priv, file_priv, vfb,
870 user_fence_rep, vclips, num_clips,
871 NULL);
872 case vmw_du_screen_target:
873 return vmw_kms_stdu_dma(dev_priv, file_priv, vfb,
874 user_fence_rep, NULL, vclips, num_clips,
875 1, false, true, NULL);
876 default:
877 WARN_ONCE(true,
878 "Readback called with invalid display system.\n");
879 }
880
881 return -ENOSYS;
882 }
883
884
885 static const struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
886 .destroy = vmw_framebuffer_surface_destroy,
887 .dirty = drm_atomic_helper_dirtyfb,
888 };
889
vmw_kms_new_framebuffer_surface(struct vmw_private * dev_priv,struct vmw_surface * surface,struct vmw_framebuffer ** out,const struct drm_mode_fb_cmd2 * mode_cmd,bool is_bo_proxy)890 static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
891 struct vmw_surface *surface,
892 struct vmw_framebuffer **out,
893 const struct drm_mode_fb_cmd2
894 *mode_cmd,
895 bool is_bo_proxy)
896
897 {
898 struct drm_device *dev = &dev_priv->drm;
899 struct vmw_framebuffer_surface *vfbs;
900 enum SVGA3dSurfaceFormat format;
901 int ret;
902
903 /* 3D is only supported on HWv8 and newer hosts */
904 if (dev_priv->active_display_unit == vmw_du_legacy)
905 return -ENOSYS;
906
907 /*
908 * Sanity checks.
909 */
910
911 /* Surface must be marked as a scanout. */
912 if (unlikely(!surface->metadata.scanout))
913 return -EINVAL;
914
915 if (unlikely(surface->metadata.mip_levels[0] != 1 ||
916 surface->metadata.num_sizes != 1 ||
917 surface->metadata.base_size.width < mode_cmd->width ||
918 surface->metadata.base_size.height < mode_cmd->height ||
919 surface->metadata.base_size.depth != 1)) {
920 DRM_ERROR("Incompatible surface dimensions "
921 "for requested mode.\n");
922 return -EINVAL;
923 }
924
925 switch (mode_cmd->pixel_format) {
926 case DRM_FORMAT_ARGB8888:
927 format = SVGA3D_A8R8G8B8;
928 break;
929 case DRM_FORMAT_XRGB8888:
930 format = SVGA3D_X8R8G8B8;
931 break;
932 case DRM_FORMAT_RGB565:
933 format = SVGA3D_R5G6B5;
934 break;
935 case DRM_FORMAT_XRGB1555:
936 format = SVGA3D_A1R5G5B5;
937 break;
938 default:
939 DRM_ERROR("Invalid pixel format: %p4cc\n",
940 &mode_cmd->pixel_format);
941 return -EINVAL;
942 }
943
944 /*
945 * For DX, surface format validation is done when surface->scanout
946 * is set.
947 */
948 if (!has_sm4_context(dev_priv) && format != surface->metadata.format) {
949 DRM_ERROR("Invalid surface format for requested mode.\n");
950 return -EINVAL;
951 }
952
953 vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
954 if (!vfbs) {
955 ret = -ENOMEM;
956 goto out_err1;
957 }
958
959 drm_helper_mode_fill_fb_struct(dev, &vfbs->base.base, mode_cmd);
960 vfbs->surface = vmw_surface_reference(surface);
961 vfbs->base.user_handle = mode_cmd->handles[0];
962 vfbs->is_bo_proxy = is_bo_proxy;
963
964 *out = &vfbs->base;
965
966 ret = drm_framebuffer_init(dev, &vfbs->base.base,
967 &vmw_framebuffer_surface_funcs);
968 if (ret)
969 goto out_err2;
970
971 return 0;
972
973 out_err2:
974 vmw_surface_unreference(&surface);
975 kfree(vfbs);
976 out_err1:
977 return ret;
978 }
979
980 /*
981 * Buffer-object framebuffer code
982 */
983
vmw_framebuffer_bo_destroy(struct drm_framebuffer * framebuffer)984 static void vmw_framebuffer_bo_destroy(struct drm_framebuffer *framebuffer)
985 {
986 struct vmw_framebuffer_bo *vfbd =
987 vmw_framebuffer_to_vfbd(framebuffer);
988
989 drm_framebuffer_cleanup(framebuffer);
990 vmw_bo_unreference(&vfbd->buffer);
991 if (vfbd->base.user_obj)
992 ttm_base_object_unref(&vfbd->base.user_obj);
993
994 kfree(vfbd);
995 }
996
vmw_framebuffer_bo_dirty(struct drm_framebuffer * framebuffer,struct drm_file * file_priv,unsigned int flags,unsigned int color,struct drm_clip_rect * clips,unsigned int num_clips)997 static int vmw_framebuffer_bo_dirty(struct drm_framebuffer *framebuffer,
998 struct drm_file *file_priv,
999 unsigned int flags, unsigned int color,
1000 struct drm_clip_rect *clips,
1001 unsigned int num_clips)
1002 {
1003 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
1004 struct vmw_framebuffer_bo *vfbd =
1005 vmw_framebuffer_to_vfbd(framebuffer);
1006 struct drm_clip_rect norect;
1007 int ret, increment = 1;
1008
1009 drm_modeset_lock_all(&dev_priv->drm);
1010
1011 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
1012 if (unlikely(ret != 0)) {
1013 drm_modeset_unlock_all(&dev_priv->drm);
1014 return ret;
1015 }
1016
1017 if (!num_clips) {
1018 num_clips = 1;
1019 clips = &norect;
1020 norect.x1 = norect.y1 = 0;
1021 norect.x2 = framebuffer->width;
1022 norect.y2 = framebuffer->height;
1023 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
1024 num_clips /= 2;
1025 increment = 2;
1026 }
1027
1028 switch (dev_priv->active_display_unit) {
1029 case vmw_du_legacy:
1030 ret = vmw_kms_ldu_do_bo_dirty(dev_priv, &vfbd->base, 0, 0,
1031 clips, num_clips, increment);
1032 break;
1033 default:
1034 ret = -EINVAL;
1035 WARN_ONCE(true, "Dirty called with invalid display system.\n");
1036 break;
1037 }
1038
1039 vmw_cmd_flush(dev_priv, false);
1040 ttm_read_unlock(&dev_priv->reservation_sem);
1041
1042 drm_modeset_unlock_all(&dev_priv->drm);
1043
1044 return ret;
1045 }
1046
vmw_framebuffer_bo_dirty_ext(struct drm_framebuffer * framebuffer,struct drm_file * file_priv,unsigned int flags,unsigned int color,struct drm_clip_rect * clips,unsigned int num_clips)1047 static int vmw_framebuffer_bo_dirty_ext(struct drm_framebuffer *framebuffer,
1048 struct drm_file *file_priv,
1049 unsigned int flags, unsigned int color,
1050 struct drm_clip_rect *clips,
1051 unsigned int num_clips)
1052 {
1053 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
1054
1055 if (dev_priv->active_display_unit == vmw_du_legacy)
1056 return vmw_framebuffer_bo_dirty(framebuffer, file_priv, flags,
1057 color, clips, num_clips);
1058
1059 return drm_atomic_helper_dirtyfb(framebuffer, file_priv, flags, color,
1060 clips, num_clips);
1061 }
1062
1063 static const struct drm_framebuffer_funcs vmw_framebuffer_bo_funcs = {
1064 .destroy = vmw_framebuffer_bo_destroy,
1065 .dirty = vmw_framebuffer_bo_dirty_ext,
1066 };
1067
1068 /*
1069 * Pin the bofer in a location suitable for access by the
1070 * display system.
1071 */
vmw_framebuffer_pin(struct vmw_framebuffer * vfb)1072 static int vmw_framebuffer_pin(struct vmw_framebuffer *vfb)
1073 {
1074 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1075 struct vmw_buffer_object *buf;
1076 struct ttm_placement *placement;
1077 int ret;
1078
1079 buf = vfb->bo ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
1080 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
1081
1082 if (!buf)
1083 return 0;
1084
1085 switch (dev_priv->active_display_unit) {
1086 case vmw_du_legacy:
1087 vmw_overlay_pause_all(dev_priv);
1088 ret = vmw_bo_pin_in_start_of_vram(dev_priv, buf, false);
1089 vmw_overlay_resume_all(dev_priv);
1090 break;
1091 case vmw_du_screen_object:
1092 case vmw_du_screen_target:
1093 if (vfb->bo) {
1094 if (dev_priv->capabilities & SVGA_CAP_3D) {
1095 /*
1096 * Use surface DMA to get content to
1097 * sreen target surface.
1098 */
1099 placement = &vmw_vram_gmr_placement;
1100 } else {
1101 /* Use CPU blit. */
1102 placement = &vmw_sys_placement;
1103 }
1104 } else {
1105 /* Use surface / image update */
1106 placement = &vmw_mob_placement;
1107 }
1108
1109 return vmw_bo_pin_in_placement(dev_priv, buf, placement, false);
1110 default:
1111 return -EINVAL;
1112 }
1113
1114 return ret;
1115 }
1116
vmw_framebuffer_unpin(struct vmw_framebuffer * vfb)1117 static int vmw_framebuffer_unpin(struct vmw_framebuffer *vfb)
1118 {
1119 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1120 struct vmw_buffer_object *buf;
1121
1122 buf = vfb->bo ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
1123 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
1124
1125 if (WARN_ON(!buf))
1126 return 0;
1127
1128 return vmw_bo_unpin(dev_priv, buf, false);
1129 }
1130
1131 /**
1132 * vmw_create_bo_proxy - create a proxy surface for the buffer object
1133 *
1134 * @dev: DRM device
1135 * @mode_cmd: parameters for the new surface
1136 * @bo_mob: MOB backing the buffer object
1137 * @srf_out: newly created surface
1138 *
1139 * When the content FB is a buffer object, we create a surface as a proxy to the
1140 * same buffer. This way we can do a surface copy rather than a surface DMA.
1141 * This is a more efficient approach
1142 *
1143 * RETURNS:
1144 * 0 on success, error code otherwise
1145 */
vmw_create_bo_proxy(struct drm_device * dev,const struct drm_mode_fb_cmd2 * mode_cmd,struct vmw_buffer_object * bo_mob,struct vmw_surface ** srf_out)1146 static int vmw_create_bo_proxy(struct drm_device *dev,
1147 const struct drm_mode_fb_cmd2 *mode_cmd,
1148 struct vmw_buffer_object *bo_mob,
1149 struct vmw_surface **srf_out)
1150 {
1151 struct vmw_surface_metadata metadata = {0};
1152 uint32_t format;
1153 struct vmw_resource *res;
1154 unsigned int bytes_pp;
1155 int ret;
1156
1157 switch (mode_cmd->pixel_format) {
1158 case DRM_FORMAT_ARGB8888:
1159 case DRM_FORMAT_XRGB8888:
1160 format = SVGA3D_X8R8G8B8;
1161 bytes_pp = 4;
1162 break;
1163
1164 case DRM_FORMAT_RGB565:
1165 case DRM_FORMAT_XRGB1555:
1166 format = SVGA3D_R5G6B5;
1167 bytes_pp = 2;
1168 break;
1169
1170 case 8:
1171 format = SVGA3D_P8;
1172 bytes_pp = 1;
1173 break;
1174
1175 default:
1176 DRM_ERROR("Invalid framebuffer format %p4cc\n",
1177 &mode_cmd->pixel_format);
1178 return -EINVAL;
1179 }
1180
1181 metadata.format = format;
1182 metadata.mip_levels[0] = 1;
1183 metadata.num_sizes = 1;
1184 metadata.base_size.width = mode_cmd->pitches[0] / bytes_pp;
1185 metadata.base_size.height = mode_cmd->height;
1186 metadata.base_size.depth = 1;
1187 metadata.scanout = true;
1188
1189 ret = vmw_gb_surface_define(vmw_priv(dev), 0, &metadata, srf_out);
1190 if (ret) {
1191 DRM_ERROR("Failed to allocate proxy content buffer\n");
1192 return ret;
1193 }
1194
1195 res = &(*srf_out)->res;
1196
1197 /* Reserve and switch the backing mob. */
1198 mutex_lock(&res->dev_priv->cmdbuf_mutex);
1199 (void) vmw_resource_reserve(res, false, true);
1200 vmw_bo_unreference(&res->backup);
1201 res->backup = vmw_bo_reference(bo_mob);
1202 res->backup_offset = 0;
1203 vmw_resource_unreserve(res, false, false, false, NULL, 0);
1204 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
1205
1206 return 0;
1207 }
1208
1209
1210
vmw_kms_new_framebuffer_bo(struct vmw_private * dev_priv,struct vmw_buffer_object * bo,struct vmw_framebuffer ** out,const struct drm_mode_fb_cmd2 * mode_cmd)1211 static int vmw_kms_new_framebuffer_bo(struct vmw_private *dev_priv,
1212 struct vmw_buffer_object *bo,
1213 struct vmw_framebuffer **out,
1214 const struct drm_mode_fb_cmd2
1215 *mode_cmd)
1216
1217 {
1218 struct drm_device *dev = &dev_priv->drm;
1219 struct vmw_framebuffer_bo *vfbd;
1220 unsigned int requested_size;
1221 int ret;
1222
1223 requested_size = mode_cmd->height * mode_cmd->pitches[0];
1224 if (unlikely(requested_size > bo->base.base.size)) {
1225 DRM_ERROR("Screen buffer object size is too small "
1226 "for requested mode.\n");
1227 return -EINVAL;
1228 }
1229
1230 /* Limited framebuffer color depth support for screen objects */
1231 if (dev_priv->active_display_unit == vmw_du_screen_object) {
1232 switch (mode_cmd->pixel_format) {
1233 case DRM_FORMAT_XRGB8888:
1234 case DRM_FORMAT_ARGB8888:
1235 break;
1236 case DRM_FORMAT_XRGB1555:
1237 case DRM_FORMAT_RGB565:
1238 break;
1239 default:
1240 DRM_ERROR("Invalid pixel format: %p4cc\n",
1241 &mode_cmd->pixel_format);
1242 return -EINVAL;
1243 }
1244 }
1245
1246 vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
1247 if (!vfbd) {
1248 ret = -ENOMEM;
1249 goto out_err1;
1250 }
1251
1252 drm_helper_mode_fill_fb_struct(dev, &vfbd->base.base, mode_cmd);
1253 vfbd->base.bo = true;
1254 vfbd->buffer = vmw_bo_reference(bo);
1255 vfbd->base.user_handle = mode_cmd->handles[0];
1256 *out = &vfbd->base;
1257
1258 ret = drm_framebuffer_init(dev, &vfbd->base.base,
1259 &vmw_framebuffer_bo_funcs);
1260 if (ret)
1261 goto out_err2;
1262
1263 return 0;
1264
1265 out_err2:
1266 vmw_bo_unreference(&bo);
1267 kfree(vfbd);
1268 out_err1:
1269 return ret;
1270 }
1271
1272
1273 /**
1274 * vmw_kms_srf_ok - check if a surface can be created
1275 *
1276 * @dev_priv: Pointer to device private struct.
1277 * @width: requested width
1278 * @height: requested height
1279 *
1280 * Surfaces need to be less than texture size
1281 */
1282 static bool
vmw_kms_srf_ok(struct vmw_private * dev_priv,uint32_t width,uint32_t height)1283 vmw_kms_srf_ok(struct vmw_private *dev_priv, uint32_t width, uint32_t height)
1284 {
1285 if (width > dev_priv->texture_max_width ||
1286 height > dev_priv->texture_max_height)
1287 return false;
1288
1289 return true;
1290 }
1291
1292 /**
1293 * vmw_kms_new_framebuffer - Create a new framebuffer.
1294 *
1295 * @dev_priv: Pointer to device private struct.
1296 * @bo: Pointer to buffer object to wrap the kms framebuffer around.
1297 * Either @bo or @surface must be NULL.
1298 * @surface: Pointer to a surface to wrap the kms framebuffer around.
1299 * Either @bo or @surface must be NULL.
1300 * @only_2d: No presents will occur to this buffer object based framebuffer.
1301 * This helps the code to do some important optimizations.
1302 * @mode_cmd: Frame-buffer metadata.
1303 */
1304 struct vmw_framebuffer *
vmw_kms_new_framebuffer(struct vmw_private * dev_priv,struct vmw_buffer_object * bo,struct vmw_surface * surface,bool only_2d,const struct drm_mode_fb_cmd2 * mode_cmd)1305 vmw_kms_new_framebuffer(struct vmw_private *dev_priv,
1306 struct vmw_buffer_object *bo,
1307 struct vmw_surface *surface,
1308 bool only_2d,
1309 const struct drm_mode_fb_cmd2 *mode_cmd)
1310 {
1311 struct vmw_framebuffer *vfb = NULL;
1312 bool is_bo_proxy = false;
1313 int ret;
1314
1315 /*
1316 * We cannot use the SurfaceDMA command in an non-accelerated VM,
1317 * therefore, wrap the buffer object in a surface so we can use the
1318 * SurfaceCopy command.
1319 */
1320 if (vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height) &&
1321 bo && only_2d &&
1322 mode_cmd->width > 64 && /* Don't create a proxy for cursor */
1323 dev_priv->active_display_unit == vmw_du_screen_target) {
1324 ret = vmw_create_bo_proxy(&dev_priv->drm, mode_cmd,
1325 bo, &surface);
1326 if (ret)
1327 return ERR_PTR(ret);
1328
1329 is_bo_proxy = true;
1330 }
1331
1332 /* Create the new framebuffer depending one what we have */
1333 if (surface) {
1334 ret = vmw_kms_new_framebuffer_surface(dev_priv, surface, &vfb,
1335 mode_cmd,
1336 is_bo_proxy);
1337
1338 /*
1339 * vmw_create_bo_proxy() adds a reference that is no longer
1340 * needed
1341 */
1342 if (is_bo_proxy)
1343 vmw_surface_unreference(&surface);
1344 } else if (bo) {
1345 ret = vmw_kms_new_framebuffer_bo(dev_priv, bo, &vfb,
1346 mode_cmd);
1347 } else {
1348 BUG();
1349 }
1350
1351 if (ret)
1352 return ERR_PTR(ret);
1353
1354 vfb->pin = vmw_framebuffer_pin;
1355 vfb->unpin = vmw_framebuffer_unpin;
1356
1357 return vfb;
1358 }
1359
1360 /*
1361 * Generic Kernel modesetting functions
1362 */
1363
vmw_kms_fb_create(struct drm_device * dev,struct drm_file * file_priv,const struct drm_mode_fb_cmd2 * mode_cmd)1364 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
1365 struct drm_file *file_priv,
1366 const struct drm_mode_fb_cmd2 *mode_cmd)
1367 {
1368 struct vmw_private *dev_priv = vmw_priv(dev);
1369 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1370 struct vmw_framebuffer *vfb = NULL;
1371 struct vmw_surface *surface = NULL;
1372 struct vmw_buffer_object *bo = NULL;
1373 struct ttm_base_object *user_obj;
1374 int ret;
1375
1376 /*
1377 * Take a reference on the user object of the resource
1378 * backing the kms fb. This ensures that user-space handle
1379 * lookups on that resource will always work as long as
1380 * it's registered with a kms framebuffer. This is important,
1381 * since vmw_execbuf_process identifies resources in the
1382 * command stream using user-space handles.
1383 */
1384
1385 user_obj = ttm_base_object_lookup(tfile, mode_cmd->handles[0]);
1386 if (unlikely(user_obj == NULL)) {
1387 DRM_ERROR("Could not locate requested kms frame buffer.\n");
1388 return ERR_PTR(-ENOENT);
1389 }
1390
1391 /**
1392 * End conditioned code.
1393 */
1394
1395 /* returns either a bo or surface */
1396 ret = vmw_user_lookup_handle(dev_priv, tfile,
1397 mode_cmd->handles[0],
1398 &surface, &bo);
1399 if (ret)
1400 goto err_out;
1401
1402
1403 if (!bo &&
1404 !vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height)) {
1405 DRM_ERROR("Surface size cannot exceed %dx%d",
1406 dev_priv->texture_max_width,
1407 dev_priv->texture_max_height);
1408 goto err_out;
1409 }
1410
1411
1412 vfb = vmw_kms_new_framebuffer(dev_priv, bo, surface,
1413 !(dev_priv->capabilities & SVGA_CAP_3D),
1414 mode_cmd);
1415 if (IS_ERR(vfb)) {
1416 ret = PTR_ERR(vfb);
1417 goto err_out;
1418 }
1419
1420 err_out:
1421 /* vmw_user_lookup_handle takes one ref so does new_fb */
1422 if (bo)
1423 vmw_bo_unreference(&bo);
1424 if (surface)
1425 vmw_surface_unreference(&surface);
1426
1427 if (ret) {
1428 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1429 ttm_base_object_unref(&user_obj);
1430 return ERR_PTR(ret);
1431 } else
1432 vfb->user_obj = user_obj;
1433
1434 return &vfb->base;
1435 }
1436
1437 /**
1438 * vmw_kms_check_display_memory - Validates display memory required for a
1439 * topology
1440 * @dev: DRM device
1441 * @num_rects: number of drm_rect in rects
1442 * @rects: array of drm_rect representing the topology to validate indexed by
1443 * crtc index.
1444 *
1445 * Returns:
1446 * 0 on success otherwise negative error code
1447 */
vmw_kms_check_display_memory(struct drm_device * dev,uint32_t num_rects,struct drm_rect * rects)1448 static int vmw_kms_check_display_memory(struct drm_device *dev,
1449 uint32_t num_rects,
1450 struct drm_rect *rects)
1451 {
1452 struct vmw_private *dev_priv = vmw_priv(dev);
1453 struct drm_rect bounding_box = {0};
1454 u64 total_pixels = 0, pixel_mem, bb_mem;
1455 int i;
1456
1457 for (i = 0; i < num_rects; i++) {
1458 /*
1459 * For STDU only individual screen (screen target) is limited by
1460 * SCREENTARGET_MAX_WIDTH/HEIGHT registers.
1461 */
1462 if (dev_priv->active_display_unit == vmw_du_screen_target &&
1463 (drm_rect_width(&rects[i]) > dev_priv->stdu_max_width ||
1464 drm_rect_height(&rects[i]) > dev_priv->stdu_max_height)) {
1465 VMW_DEBUG_KMS("Screen size not supported.\n");
1466 return -EINVAL;
1467 }
1468
1469 /* Bounding box upper left is at (0,0). */
1470 if (rects[i].x2 > bounding_box.x2)
1471 bounding_box.x2 = rects[i].x2;
1472
1473 if (rects[i].y2 > bounding_box.y2)
1474 bounding_box.y2 = rects[i].y2;
1475
1476 total_pixels += (u64) drm_rect_width(&rects[i]) *
1477 (u64) drm_rect_height(&rects[i]);
1478 }
1479
1480 /* Virtual svga device primary limits are always in 32-bpp. */
1481 pixel_mem = total_pixels * 4;
1482
1483 /*
1484 * For HV10 and below prim_bb_mem is vram size. When
1485 * SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM is not present vram size is
1486 * limit on primary bounding box
1487 */
1488 if (pixel_mem > dev_priv->prim_bb_mem) {
1489 VMW_DEBUG_KMS("Combined output size too large.\n");
1490 return -EINVAL;
1491 }
1492
1493 /* SVGA_CAP_NO_BB_RESTRICTION is available for STDU only. */
1494 if (dev_priv->active_display_unit != vmw_du_screen_target ||
1495 !(dev_priv->capabilities & SVGA_CAP_NO_BB_RESTRICTION)) {
1496 bb_mem = (u64) bounding_box.x2 * bounding_box.y2 * 4;
1497
1498 if (bb_mem > dev_priv->prim_bb_mem) {
1499 VMW_DEBUG_KMS("Topology is beyond supported limits.\n");
1500 return -EINVAL;
1501 }
1502 }
1503
1504 return 0;
1505 }
1506
1507 /**
1508 * vmw_crtc_state_and_lock - Return new or current crtc state with locked
1509 * crtc mutex
1510 * @state: The atomic state pointer containing the new atomic state
1511 * @crtc: The crtc
1512 *
1513 * This function returns the new crtc state if it's part of the state update.
1514 * Otherwise returns the current crtc state. It also makes sure that the
1515 * crtc mutex is locked.
1516 *
1517 * Returns: A valid crtc state pointer or NULL. It may also return a
1518 * pointer error, in particular -EDEADLK if locking needs to be rerun.
1519 */
1520 static struct drm_crtc_state *
vmw_crtc_state_and_lock(struct drm_atomic_state * state,struct drm_crtc * crtc)1521 vmw_crtc_state_and_lock(struct drm_atomic_state *state, struct drm_crtc *crtc)
1522 {
1523 struct drm_crtc_state *crtc_state;
1524
1525 crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
1526 if (crtc_state) {
1527 lockdep_assert_held(&crtc->mutex.mutex.base);
1528 } else {
1529 int ret = drm_modeset_lock(&crtc->mutex, state->acquire_ctx);
1530
1531 if (ret != 0 && ret != -EALREADY)
1532 return ERR_PTR(ret);
1533
1534 crtc_state = crtc->state;
1535 }
1536
1537 return crtc_state;
1538 }
1539
1540 /**
1541 * vmw_kms_check_implicit - Verify that all implicit display units scan out
1542 * from the same fb after the new state is committed.
1543 * @dev: The drm_device.
1544 * @state: The new state to be checked.
1545 *
1546 * Returns:
1547 * Zero on success,
1548 * -EINVAL on invalid state,
1549 * -EDEADLK if modeset locking needs to be rerun.
1550 */
vmw_kms_check_implicit(struct drm_device * dev,struct drm_atomic_state * state)1551 static int vmw_kms_check_implicit(struct drm_device *dev,
1552 struct drm_atomic_state *state)
1553 {
1554 struct drm_framebuffer *implicit_fb = NULL;
1555 struct drm_crtc *crtc;
1556 struct drm_crtc_state *crtc_state;
1557 struct drm_plane_state *plane_state;
1558
1559 drm_for_each_crtc(crtc, dev) {
1560 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1561
1562 if (!du->is_implicit)
1563 continue;
1564
1565 crtc_state = vmw_crtc_state_and_lock(state, crtc);
1566 if (IS_ERR(crtc_state))
1567 return PTR_ERR(crtc_state);
1568
1569 if (!crtc_state || !crtc_state->enable)
1570 continue;
1571
1572 /*
1573 * Can't move primary planes across crtcs, so this is OK.
1574 * It also means we don't need to take the plane mutex.
1575 */
1576 plane_state = du->primary.state;
1577 if (plane_state->crtc != crtc)
1578 continue;
1579
1580 if (!implicit_fb)
1581 implicit_fb = plane_state->fb;
1582 else if (implicit_fb != plane_state->fb)
1583 return -EINVAL;
1584 }
1585
1586 return 0;
1587 }
1588
1589 /**
1590 * vmw_kms_check_topology - Validates topology in drm_atomic_state
1591 * @dev: DRM device
1592 * @state: the driver state object
1593 *
1594 * Returns:
1595 * 0 on success otherwise negative error code
1596 */
vmw_kms_check_topology(struct drm_device * dev,struct drm_atomic_state * state)1597 static int vmw_kms_check_topology(struct drm_device *dev,
1598 struct drm_atomic_state *state)
1599 {
1600 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
1601 struct drm_rect *rects;
1602 struct drm_crtc *crtc;
1603 uint32_t i;
1604 int ret = 0;
1605
1606 rects = kcalloc(dev->mode_config.num_crtc, sizeof(struct drm_rect),
1607 GFP_KERNEL);
1608 if (!rects)
1609 return -ENOMEM;
1610
1611 drm_for_each_crtc(crtc, dev) {
1612 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1613 struct drm_crtc_state *crtc_state;
1614
1615 i = drm_crtc_index(crtc);
1616
1617 crtc_state = vmw_crtc_state_and_lock(state, crtc);
1618 if (IS_ERR(crtc_state)) {
1619 ret = PTR_ERR(crtc_state);
1620 goto clean;
1621 }
1622
1623 if (!crtc_state)
1624 continue;
1625
1626 if (crtc_state->enable) {
1627 rects[i].x1 = du->gui_x;
1628 rects[i].y1 = du->gui_y;
1629 rects[i].x2 = du->gui_x + crtc_state->mode.hdisplay;
1630 rects[i].y2 = du->gui_y + crtc_state->mode.vdisplay;
1631 } else {
1632 rects[i].x1 = 0;
1633 rects[i].y1 = 0;
1634 rects[i].x2 = 0;
1635 rects[i].y2 = 0;
1636 }
1637 }
1638
1639 /* Determine change to topology due to new atomic state */
1640 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
1641 new_crtc_state, i) {
1642 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1643 struct drm_connector *connector;
1644 struct drm_connector_state *conn_state;
1645 struct vmw_connector_state *vmw_conn_state;
1646
1647 if (!du->pref_active && new_crtc_state->enable) {
1648 VMW_DEBUG_KMS("Enabling a disabled display unit\n");
1649 ret = -EINVAL;
1650 goto clean;
1651 }
1652
1653 /*
1654 * For vmwgfx each crtc has only one connector attached and it
1655 * is not changed so don't really need to check the
1656 * crtc->connector_mask and iterate over it.
1657 */
1658 connector = &du->connector;
1659 conn_state = drm_atomic_get_connector_state(state, connector);
1660 if (IS_ERR(conn_state)) {
1661 ret = PTR_ERR(conn_state);
1662 goto clean;
1663 }
1664
1665 vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
1666 vmw_conn_state->gui_x = du->gui_x;
1667 vmw_conn_state->gui_y = du->gui_y;
1668 }
1669
1670 ret = vmw_kms_check_display_memory(dev, dev->mode_config.num_crtc,
1671 rects);
1672
1673 clean:
1674 kfree(rects);
1675 return ret;
1676 }
1677
1678 /**
1679 * vmw_kms_atomic_check_modeset- validate state object for modeset changes
1680 *
1681 * @dev: DRM device
1682 * @state: the driver state object
1683 *
1684 * This is a simple wrapper around drm_atomic_helper_check_modeset() for
1685 * us to assign a value to mode->crtc_clock so that
1686 * drm_calc_timestamping_constants() won't throw an error message
1687 *
1688 * Returns:
1689 * Zero for success or -errno
1690 */
1691 static int
vmw_kms_atomic_check_modeset(struct drm_device * dev,struct drm_atomic_state * state)1692 vmw_kms_atomic_check_modeset(struct drm_device *dev,
1693 struct drm_atomic_state *state)
1694 {
1695 struct drm_crtc *crtc;
1696 struct drm_crtc_state *crtc_state;
1697 bool need_modeset = false;
1698 int i, ret;
1699
1700 ret = drm_atomic_helper_check(dev, state);
1701 if (ret)
1702 return ret;
1703
1704 ret = vmw_kms_check_implicit(dev, state);
1705 if (ret) {
1706 VMW_DEBUG_KMS("Invalid implicit state\n");
1707 return ret;
1708 }
1709
1710 for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
1711 if (drm_atomic_crtc_needs_modeset(crtc_state))
1712 need_modeset = true;
1713 }
1714
1715 if (need_modeset)
1716 return vmw_kms_check_topology(dev, state);
1717
1718 return ret;
1719 }
1720
1721 static const struct drm_mode_config_funcs vmw_kms_funcs = {
1722 .fb_create = vmw_kms_fb_create,
1723 .atomic_check = vmw_kms_atomic_check_modeset,
1724 .atomic_commit = drm_atomic_helper_commit,
1725 };
1726
vmw_kms_generic_present(struct vmw_private * dev_priv,struct drm_file * file_priv,struct vmw_framebuffer * vfb,struct vmw_surface * surface,uint32_t sid,int32_t destX,int32_t destY,struct drm_vmw_rect * clips,uint32_t num_clips)1727 static int vmw_kms_generic_present(struct vmw_private *dev_priv,
1728 struct drm_file *file_priv,
1729 struct vmw_framebuffer *vfb,
1730 struct vmw_surface *surface,
1731 uint32_t sid,
1732 int32_t destX, int32_t destY,
1733 struct drm_vmw_rect *clips,
1734 uint32_t num_clips)
1735 {
1736 return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips,
1737 &surface->res, destX, destY,
1738 num_clips, 1, NULL, NULL);
1739 }
1740
1741
vmw_kms_present(struct vmw_private * dev_priv,struct drm_file * file_priv,struct vmw_framebuffer * vfb,struct vmw_surface * surface,uint32_t sid,int32_t destX,int32_t destY,struct drm_vmw_rect * clips,uint32_t num_clips)1742 int vmw_kms_present(struct vmw_private *dev_priv,
1743 struct drm_file *file_priv,
1744 struct vmw_framebuffer *vfb,
1745 struct vmw_surface *surface,
1746 uint32_t sid,
1747 int32_t destX, int32_t destY,
1748 struct drm_vmw_rect *clips,
1749 uint32_t num_clips)
1750 {
1751 int ret;
1752
1753 switch (dev_priv->active_display_unit) {
1754 case vmw_du_screen_target:
1755 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips,
1756 &surface->res, destX, destY,
1757 num_clips, 1, NULL, NULL);
1758 break;
1759 case vmw_du_screen_object:
1760 ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface,
1761 sid, destX, destY, clips,
1762 num_clips);
1763 break;
1764 default:
1765 WARN_ONCE(true,
1766 "Present called with invalid display system.\n");
1767 ret = -ENOSYS;
1768 break;
1769 }
1770 if (ret)
1771 return ret;
1772
1773 vmw_cmd_flush(dev_priv, false);
1774
1775 return 0;
1776 }
1777
1778 static void
vmw_kms_create_hotplug_mode_update_property(struct vmw_private * dev_priv)1779 vmw_kms_create_hotplug_mode_update_property(struct vmw_private *dev_priv)
1780 {
1781 if (dev_priv->hotplug_mode_update_property)
1782 return;
1783
1784 dev_priv->hotplug_mode_update_property =
1785 drm_property_create_range(&dev_priv->drm,
1786 DRM_MODE_PROP_IMMUTABLE,
1787 "hotplug_mode_update", 0, 1);
1788 }
1789
vmw_kms_init(struct vmw_private * dev_priv)1790 int vmw_kms_init(struct vmw_private *dev_priv)
1791 {
1792 struct drm_device *dev = &dev_priv->drm;
1793 int ret;
1794
1795 drm_mode_config_init(dev);
1796 dev->mode_config.funcs = &vmw_kms_funcs;
1797 dev->mode_config.min_width = 1;
1798 dev->mode_config.min_height = 1;
1799 dev->mode_config.max_width = dev_priv->texture_max_width;
1800 dev->mode_config.max_height = dev_priv->texture_max_height;
1801
1802 drm_mode_create_suggested_offset_properties(dev);
1803 vmw_kms_create_hotplug_mode_update_property(dev_priv);
1804
1805 ret = vmw_kms_stdu_init_display(dev_priv);
1806 if (ret) {
1807 ret = vmw_kms_sou_init_display(dev_priv);
1808 if (ret) /* Fallback */
1809 ret = vmw_kms_ldu_init_display(dev_priv);
1810 }
1811
1812 return ret;
1813 }
1814
vmw_kms_close(struct vmw_private * dev_priv)1815 int vmw_kms_close(struct vmw_private *dev_priv)
1816 {
1817 int ret = 0;
1818
1819 /*
1820 * Docs says we should take the lock before calling this function
1821 * but since it destroys encoders and our destructor calls
1822 * drm_encoder_cleanup which takes the lock we deadlock.
1823 */
1824 drm_mode_config_cleanup(&dev_priv->drm);
1825 if (dev_priv->active_display_unit == vmw_du_legacy)
1826 ret = vmw_kms_ldu_close_display(dev_priv);
1827
1828 return ret;
1829 }
1830
vmw_kms_cursor_bypass_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)1831 int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1832 struct drm_file *file_priv)
1833 {
1834 struct drm_vmw_cursor_bypass_arg *arg = data;
1835 struct vmw_display_unit *du;
1836 struct drm_crtc *crtc;
1837 int ret = 0;
1838
1839
1840 mutex_lock(&dev->mode_config.mutex);
1841 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1842
1843 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1844 du = vmw_crtc_to_du(crtc);
1845 du->hotspot_x = arg->xhot;
1846 du->hotspot_y = arg->yhot;
1847 }
1848
1849 mutex_unlock(&dev->mode_config.mutex);
1850 return 0;
1851 }
1852
1853 crtc = drm_crtc_find(dev, file_priv, arg->crtc_id);
1854 if (!crtc) {
1855 ret = -ENOENT;
1856 goto out;
1857 }
1858
1859 du = vmw_crtc_to_du(crtc);
1860
1861 du->hotspot_x = arg->xhot;
1862 du->hotspot_y = arg->yhot;
1863
1864 out:
1865 mutex_unlock(&dev->mode_config.mutex);
1866
1867 return ret;
1868 }
1869
vmw_kms_write_svga(struct vmw_private * vmw_priv,unsigned width,unsigned height,unsigned pitch,unsigned bpp,unsigned depth)1870 int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1871 unsigned width, unsigned height, unsigned pitch,
1872 unsigned bpp, unsigned depth)
1873 {
1874 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1875 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1876 else if (vmw_fifo_have_pitchlock(vmw_priv))
1877 vmw_fifo_mem_write(vmw_priv, SVGA_FIFO_PITCHLOCK, pitch);
1878 vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1879 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1880 if ((vmw_priv->capabilities & SVGA_CAP_8BIT_EMULATION) != 0)
1881 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1882
1883 if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1884 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1885 depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1886 return -EINVAL;
1887 }
1888
1889 return 0;
1890 }
1891
vmw_kms_validate_mode_vram(struct vmw_private * dev_priv,uint32_t pitch,uint32_t height)1892 bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1893 uint32_t pitch,
1894 uint32_t height)
1895 {
1896 return ((u64) pitch * (u64) height) < (u64)
1897 ((dev_priv->active_display_unit == vmw_du_screen_target) ?
1898 dev_priv->prim_bb_mem : dev_priv->vram_size);
1899 }
1900
1901
1902 /*
1903 * Function called by DRM code called with vbl_lock held.
1904 */
vmw_get_vblank_counter(struct drm_crtc * crtc)1905 u32 vmw_get_vblank_counter(struct drm_crtc *crtc)
1906 {
1907 return 0;
1908 }
1909
1910 /*
1911 * Function called by DRM code called with vbl_lock held.
1912 */
vmw_enable_vblank(struct drm_crtc * crtc)1913 int vmw_enable_vblank(struct drm_crtc *crtc)
1914 {
1915 return -EINVAL;
1916 }
1917
1918 /*
1919 * Function called by DRM code called with vbl_lock held.
1920 */
vmw_disable_vblank(struct drm_crtc * crtc)1921 void vmw_disable_vblank(struct drm_crtc *crtc)
1922 {
1923 }
1924
1925 /**
1926 * vmw_du_update_layout - Update the display unit with topology from resolution
1927 * plugin and generate DRM uevent
1928 * @dev_priv: device private
1929 * @num_rects: number of drm_rect in rects
1930 * @rects: toplogy to update
1931 */
vmw_du_update_layout(struct vmw_private * dev_priv,unsigned int num_rects,struct drm_rect * rects)1932 static int vmw_du_update_layout(struct vmw_private *dev_priv,
1933 unsigned int num_rects, struct drm_rect *rects)
1934 {
1935 struct drm_device *dev = &dev_priv->drm;
1936 struct vmw_display_unit *du;
1937 struct drm_connector *con;
1938 struct drm_connector_list_iter conn_iter;
1939 struct drm_modeset_acquire_ctx ctx;
1940 struct drm_crtc *crtc;
1941 int ret;
1942
1943 /* Currently gui_x/y is protected with the crtc mutex */
1944 mutex_lock(&dev->mode_config.mutex);
1945 drm_modeset_acquire_init(&ctx, 0);
1946 retry:
1947 drm_for_each_crtc(crtc, dev) {
1948 ret = drm_modeset_lock(&crtc->mutex, &ctx);
1949 if (ret < 0) {
1950 if (ret == -EDEADLK) {
1951 drm_modeset_backoff(&ctx);
1952 goto retry;
1953 }
1954 goto out_fini;
1955 }
1956 }
1957
1958 drm_connector_list_iter_begin(dev, &conn_iter);
1959 drm_for_each_connector_iter(con, &conn_iter) {
1960 du = vmw_connector_to_du(con);
1961 if (num_rects > du->unit) {
1962 du->pref_width = drm_rect_width(&rects[du->unit]);
1963 du->pref_height = drm_rect_height(&rects[du->unit]);
1964 du->pref_active = true;
1965 du->gui_x = rects[du->unit].x1;
1966 du->gui_y = rects[du->unit].y1;
1967 } else {
1968 du->pref_width = 800;
1969 du->pref_height = 600;
1970 du->pref_active = false;
1971 du->gui_x = 0;
1972 du->gui_y = 0;
1973 }
1974 }
1975 drm_connector_list_iter_end(&conn_iter);
1976
1977 list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1978 du = vmw_connector_to_du(con);
1979 if (num_rects > du->unit) {
1980 drm_object_property_set_value
1981 (&con->base, dev->mode_config.suggested_x_property,
1982 du->gui_x);
1983 drm_object_property_set_value
1984 (&con->base, dev->mode_config.suggested_y_property,
1985 du->gui_y);
1986 } else {
1987 drm_object_property_set_value
1988 (&con->base, dev->mode_config.suggested_x_property,
1989 0);
1990 drm_object_property_set_value
1991 (&con->base, dev->mode_config.suggested_y_property,
1992 0);
1993 }
1994 con->status = vmw_du_connector_detect(con, true);
1995 }
1996
1997 drm_sysfs_hotplug_event(dev);
1998 out_fini:
1999 drm_modeset_drop_locks(&ctx);
2000 drm_modeset_acquire_fini(&ctx);
2001 mutex_unlock(&dev->mode_config.mutex);
2002
2003 return 0;
2004 }
2005
vmw_du_crtc_gamma_set(struct drm_crtc * crtc,u16 * r,u16 * g,u16 * b,uint32_t size,struct drm_modeset_acquire_ctx * ctx)2006 int vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
2007 u16 *r, u16 *g, u16 *b,
2008 uint32_t size,
2009 struct drm_modeset_acquire_ctx *ctx)
2010 {
2011 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
2012 int i;
2013
2014 for (i = 0; i < size; i++) {
2015 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
2016 r[i], g[i], b[i]);
2017 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
2018 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
2019 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
2020 }
2021
2022 return 0;
2023 }
2024
vmw_du_connector_dpms(struct drm_connector * connector,int mode)2025 int vmw_du_connector_dpms(struct drm_connector *connector, int mode)
2026 {
2027 return 0;
2028 }
2029
2030 enum drm_connector_status
vmw_du_connector_detect(struct drm_connector * connector,bool force)2031 vmw_du_connector_detect(struct drm_connector *connector, bool force)
2032 {
2033 uint32_t num_displays;
2034 struct drm_device *dev = connector->dev;
2035 struct vmw_private *dev_priv = vmw_priv(dev);
2036 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2037
2038 num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
2039
2040 return ((vmw_connector_to_du(connector)->unit < num_displays &&
2041 du->pref_active) ?
2042 connector_status_connected : connector_status_disconnected);
2043 }
2044
2045 static struct drm_display_mode vmw_kms_connector_builtin[] = {
2046 /* 640x480@60Hz */
2047 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
2048 752, 800, 0, 480, 489, 492, 525, 0,
2049 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
2050 /* 800x600@60Hz */
2051 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
2052 968, 1056, 0, 600, 601, 605, 628, 0,
2053 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2054 /* 1024x768@60Hz */
2055 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
2056 1184, 1344, 0, 768, 771, 777, 806, 0,
2057 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
2058 /* 1152x864@75Hz */
2059 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
2060 1344, 1600, 0, 864, 865, 868, 900, 0,
2061 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2062 /* 1280x720@60Hz */
2063 { DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74500, 1280, 1344,
2064 1472, 1664, 0, 720, 723, 728, 748, 0,
2065 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2066 /* 1280x768@60Hz */
2067 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
2068 1472, 1664, 0, 768, 771, 778, 798, 0,
2069 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2070 /* 1280x800@60Hz */
2071 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
2072 1480, 1680, 0, 800, 803, 809, 831, 0,
2073 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
2074 /* 1280x960@60Hz */
2075 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
2076 1488, 1800, 0, 960, 961, 964, 1000, 0,
2077 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2078 /* 1280x1024@60Hz */
2079 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
2080 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
2081 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2082 /* 1360x768@60Hz */
2083 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
2084 1536, 1792, 0, 768, 771, 777, 795, 0,
2085 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2086 /* 1440x1050@60Hz */
2087 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
2088 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
2089 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2090 /* 1440x900@60Hz */
2091 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
2092 1672, 1904, 0, 900, 903, 909, 934, 0,
2093 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2094 /* 1600x1200@60Hz */
2095 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
2096 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
2097 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2098 /* 1680x1050@60Hz */
2099 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
2100 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
2101 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2102 /* 1792x1344@60Hz */
2103 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
2104 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
2105 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2106 /* 1853x1392@60Hz */
2107 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
2108 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
2109 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2110 /* 1920x1080@60Hz */
2111 { DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 173000, 1920, 2048,
2112 2248, 2576, 0, 1080, 1083, 1088, 1120, 0,
2113 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2114 /* 1920x1200@60Hz */
2115 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
2116 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
2117 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2118 /* 1920x1440@60Hz */
2119 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
2120 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
2121 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2122 /* 2560x1440@60Hz */
2123 { DRM_MODE("2560x1440", DRM_MODE_TYPE_DRIVER, 241500, 2560, 2608,
2124 2640, 2720, 0, 1440, 1443, 1448, 1481, 0,
2125 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
2126 /* 2560x1600@60Hz */
2127 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
2128 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
2129 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2130 /* 2880x1800@60Hz */
2131 { DRM_MODE("2880x1800", DRM_MODE_TYPE_DRIVER, 337500, 2880, 2928,
2132 2960, 3040, 0, 1800, 1803, 1809, 1852, 0,
2133 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
2134 /* 3840x2160@60Hz */
2135 { DRM_MODE("3840x2160", DRM_MODE_TYPE_DRIVER, 533000, 3840, 3888,
2136 3920, 4000, 0, 2160, 2163, 2168, 2222, 0,
2137 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
2138 /* 3840x2400@60Hz */
2139 { DRM_MODE("3840x2400", DRM_MODE_TYPE_DRIVER, 592250, 3840, 3888,
2140 3920, 4000, 0, 2400, 2403, 2409, 2469, 0,
2141 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
2142 /* Terminate */
2143 { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
2144 };
2145
2146 /**
2147 * vmw_guess_mode_timing - Provide fake timings for a
2148 * 60Hz vrefresh mode.
2149 *
2150 * @mode: Pointer to a struct drm_display_mode with hdisplay and vdisplay
2151 * members filled in.
2152 */
vmw_guess_mode_timing(struct drm_display_mode * mode)2153 void vmw_guess_mode_timing(struct drm_display_mode *mode)
2154 {
2155 mode->hsync_start = mode->hdisplay + 50;
2156 mode->hsync_end = mode->hsync_start + 50;
2157 mode->htotal = mode->hsync_end + 50;
2158
2159 mode->vsync_start = mode->vdisplay + 50;
2160 mode->vsync_end = mode->vsync_start + 50;
2161 mode->vtotal = mode->vsync_end + 50;
2162
2163 mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
2164 }
2165
2166
vmw_du_connector_fill_modes(struct drm_connector * connector,uint32_t max_width,uint32_t max_height)2167 int vmw_du_connector_fill_modes(struct drm_connector *connector,
2168 uint32_t max_width, uint32_t max_height)
2169 {
2170 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2171 struct drm_device *dev = connector->dev;
2172 struct vmw_private *dev_priv = vmw_priv(dev);
2173 struct drm_display_mode *mode = NULL;
2174 struct drm_display_mode *bmode;
2175 struct drm_display_mode prefmode = { DRM_MODE("preferred",
2176 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
2177 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2178 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
2179 };
2180 int i;
2181 u32 assumed_bpp = 4;
2182
2183 if (dev_priv->assume_16bpp)
2184 assumed_bpp = 2;
2185
2186 max_width = min(max_width, dev_priv->texture_max_width);
2187 max_height = min(max_height, dev_priv->texture_max_height);
2188
2189 /*
2190 * For STDU extra limit for a mode on SVGA_REG_SCREENTARGET_MAX_WIDTH/
2191 * HEIGHT registers.
2192 */
2193 if (dev_priv->active_display_unit == vmw_du_screen_target) {
2194 max_width = min(max_width, dev_priv->stdu_max_width);
2195 max_height = min(max_height, dev_priv->stdu_max_height);
2196 }
2197
2198 /* Add preferred mode */
2199 mode = drm_mode_duplicate(dev, &prefmode);
2200 if (!mode)
2201 return 0;
2202 mode->hdisplay = du->pref_width;
2203 mode->vdisplay = du->pref_height;
2204 vmw_guess_mode_timing(mode);
2205 drm_mode_set_name(mode);
2206
2207 if (vmw_kms_validate_mode_vram(dev_priv,
2208 mode->hdisplay * assumed_bpp,
2209 mode->vdisplay)) {
2210 drm_mode_probed_add(connector, mode);
2211 } else {
2212 drm_mode_destroy(dev, mode);
2213 mode = NULL;
2214 }
2215
2216 if (du->pref_mode) {
2217 list_del_init(&du->pref_mode->head);
2218 drm_mode_destroy(dev, du->pref_mode);
2219 }
2220
2221 /* mode might be null here, this is intended */
2222 du->pref_mode = mode;
2223
2224 for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
2225 bmode = &vmw_kms_connector_builtin[i];
2226 if (bmode->hdisplay > max_width ||
2227 bmode->vdisplay > max_height)
2228 continue;
2229
2230 if (!vmw_kms_validate_mode_vram(dev_priv,
2231 bmode->hdisplay * assumed_bpp,
2232 bmode->vdisplay))
2233 continue;
2234
2235 mode = drm_mode_duplicate(dev, bmode);
2236 if (!mode)
2237 return 0;
2238
2239 drm_mode_probed_add(connector, mode);
2240 }
2241
2242 drm_connector_list_update(connector);
2243 /* Move the prefered mode first, help apps pick the right mode. */
2244 drm_mode_sort(&connector->modes);
2245
2246 return 1;
2247 }
2248
2249 /**
2250 * vmw_kms_update_layout_ioctl - Handler for DRM_VMW_UPDATE_LAYOUT ioctl
2251 * @dev: drm device for the ioctl
2252 * @data: data pointer for the ioctl
2253 * @file_priv: drm file for the ioctl call
2254 *
2255 * Update preferred topology of display unit as per ioctl request. The topology
2256 * is expressed as array of drm_vmw_rect.
2257 * e.g.
2258 * [0 0 640 480] [640 0 800 600] [0 480 640 480]
2259 *
2260 * NOTE:
2261 * The x and y offset (upper left) in drm_vmw_rect cannot be less than 0. Beside
2262 * device limit on topology, x + w and y + h (lower right) cannot be greater
2263 * than INT_MAX. So topology beyond these limits will return with error.
2264 *
2265 * Returns:
2266 * Zero on success, negative errno on failure.
2267 */
vmw_kms_update_layout_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)2268 int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
2269 struct drm_file *file_priv)
2270 {
2271 struct vmw_private *dev_priv = vmw_priv(dev);
2272 struct drm_mode_config *mode_config = &dev->mode_config;
2273 struct drm_vmw_update_layout_arg *arg =
2274 (struct drm_vmw_update_layout_arg *)data;
2275 void __user *user_rects;
2276 struct drm_vmw_rect *rects;
2277 struct drm_rect *drm_rects;
2278 unsigned rects_size;
2279 int ret, i;
2280
2281 if (!arg->num_outputs) {
2282 struct drm_rect def_rect = {0, 0, 800, 600};
2283 VMW_DEBUG_KMS("Default layout x1 = %d y1 = %d x2 = %d y2 = %d\n",
2284 def_rect.x1, def_rect.y1,
2285 def_rect.x2, def_rect.y2);
2286 vmw_du_update_layout(dev_priv, 1, &def_rect);
2287 return 0;
2288 }
2289
2290 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2291 rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2292 GFP_KERNEL);
2293 if (unlikely(!rects))
2294 return -ENOMEM;
2295
2296 user_rects = (void __user *)(unsigned long)arg->rects;
2297 ret = copy_from_user(rects, user_rects, rects_size);
2298 if (unlikely(ret != 0)) {
2299 DRM_ERROR("Failed to get rects.\n");
2300 ret = -EFAULT;
2301 goto out_free;
2302 }
2303
2304 drm_rects = (struct drm_rect *)rects;
2305
2306 VMW_DEBUG_KMS("Layout count = %u\n", arg->num_outputs);
2307 for (i = 0; i < arg->num_outputs; i++) {
2308 struct drm_vmw_rect curr_rect;
2309
2310 /* Verify user-space for overflow as kernel use drm_rect */
2311 if ((rects[i].x + rects[i].w > INT_MAX) ||
2312 (rects[i].y + rects[i].h > INT_MAX)) {
2313 ret = -ERANGE;
2314 goto out_free;
2315 }
2316
2317 curr_rect = rects[i];
2318 drm_rects[i].x1 = curr_rect.x;
2319 drm_rects[i].y1 = curr_rect.y;
2320 drm_rects[i].x2 = curr_rect.x + curr_rect.w;
2321 drm_rects[i].y2 = curr_rect.y + curr_rect.h;
2322
2323 VMW_DEBUG_KMS(" x1 = %d y1 = %d x2 = %d y2 = %d\n",
2324 drm_rects[i].x1, drm_rects[i].y1,
2325 drm_rects[i].x2, drm_rects[i].y2);
2326
2327 /*
2328 * Currently this check is limiting the topology within
2329 * mode_config->max (which actually is max texture size
2330 * supported by virtual device). This limit is here to address
2331 * window managers that create a big framebuffer for whole
2332 * topology.
2333 */
2334 if (drm_rects[i].x1 < 0 || drm_rects[i].y1 < 0 ||
2335 drm_rects[i].x2 > mode_config->max_width ||
2336 drm_rects[i].y2 > mode_config->max_height) {
2337 VMW_DEBUG_KMS("Invalid layout %d %d %d %d\n",
2338 drm_rects[i].x1, drm_rects[i].y1,
2339 drm_rects[i].x2, drm_rects[i].y2);
2340 ret = -EINVAL;
2341 goto out_free;
2342 }
2343 }
2344
2345 ret = vmw_kms_check_display_memory(dev, arg->num_outputs, drm_rects);
2346
2347 if (ret == 0)
2348 vmw_du_update_layout(dev_priv, arg->num_outputs, drm_rects);
2349
2350 out_free:
2351 kfree(rects);
2352 return ret;
2353 }
2354
2355 /**
2356 * vmw_kms_helper_dirty - Helper to build commands and perform actions based
2357 * on a set of cliprects and a set of display units.
2358 *
2359 * @dev_priv: Pointer to a device private structure.
2360 * @framebuffer: Pointer to the framebuffer on which to perform the actions.
2361 * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL.
2362 * Cliprects are given in framebuffer coordinates.
2363 * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must
2364 * be NULL. Cliprects are given in source coordinates.
2365 * @dest_x: X coordinate offset for the crtc / destination clip rects.
2366 * @dest_y: Y coordinate offset for the crtc / destination clip rects.
2367 * @num_clips: Number of cliprects in the @clips or @vclips array.
2368 * @increment: Integer with which to increment the clip counter when looping.
2369 * Used to skip a predetermined number of clip rects.
2370 * @dirty: Closure structure. See the description of struct vmw_kms_dirty.
2371 */
vmw_kms_helper_dirty(struct vmw_private * dev_priv,struct vmw_framebuffer * framebuffer,const struct drm_clip_rect * clips,const struct drm_vmw_rect * vclips,s32 dest_x,s32 dest_y,int num_clips,int increment,struct vmw_kms_dirty * dirty)2372 int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
2373 struct vmw_framebuffer *framebuffer,
2374 const struct drm_clip_rect *clips,
2375 const struct drm_vmw_rect *vclips,
2376 s32 dest_x, s32 dest_y,
2377 int num_clips,
2378 int increment,
2379 struct vmw_kms_dirty *dirty)
2380 {
2381 struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
2382 struct drm_crtc *crtc;
2383 u32 num_units = 0;
2384 u32 i, k;
2385
2386 dirty->dev_priv = dev_priv;
2387
2388 /* If crtc is passed, no need to iterate over other display units */
2389 if (dirty->crtc) {
2390 units[num_units++] = vmw_crtc_to_du(dirty->crtc);
2391 } else {
2392 list_for_each_entry(crtc, &dev_priv->drm.mode_config.crtc_list,
2393 head) {
2394 struct drm_plane *plane = crtc->primary;
2395
2396 if (plane->state->fb == &framebuffer->base)
2397 units[num_units++] = vmw_crtc_to_du(crtc);
2398 }
2399 }
2400
2401 for (k = 0; k < num_units; k++) {
2402 struct vmw_display_unit *unit = units[k];
2403 s32 crtc_x = unit->crtc.x;
2404 s32 crtc_y = unit->crtc.y;
2405 s32 crtc_width = unit->crtc.mode.hdisplay;
2406 s32 crtc_height = unit->crtc.mode.vdisplay;
2407 const struct drm_clip_rect *clips_ptr = clips;
2408 const struct drm_vmw_rect *vclips_ptr = vclips;
2409
2410 dirty->unit = unit;
2411 if (dirty->fifo_reserve_size > 0) {
2412 dirty->cmd = VMW_CMD_RESERVE(dev_priv,
2413 dirty->fifo_reserve_size);
2414 if (!dirty->cmd)
2415 return -ENOMEM;
2416
2417 memset(dirty->cmd, 0, dirty->fifo_reserve_size);
2418 }
2419 dirty->num_hits = 0;
2420 for (i = 0; i < num_clips; i++, clips_ptr += increment,
2421 vclips_ptr += increment) {
2422 s32 clip_left;
2423 s32 clip_top;
2424
2425 /*
2426 * Select clip array type. Note that integer type
2427 * in @clips is unsigned short, whereas in @vclips
2428 * it's 32-bit.
2429 */
2430 if (clips) {
2431 dirty->fb_x = (s32) clips_ptr->x1;
2432 dirty->fb_y = (s32) clips_ptr->y1;
2433 dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x -
2434 crtc_x;
2435 dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y -
2436 crtc_y;
2437 } else {
2438 dirty->fb_x = vclips_ptr->x;
2439 dirty->fb_y = vclips_ptr->y;
2440 dirty->unit_x2 = dirty->fb_x + vclips_ptr->w +
2441 dest_x - crtc_x;
2442 dirty->unit_y2 = dirty->fb_y + vclips_ptr->h +
2443 dest_y - crtc_y;
2444 }
2445
2446 dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x;
2447 dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y;
2448
2449 /* Skip this clip if it's outside the crtc region */
2450 if (dirty->unit_x1 >= crtc_width ||
2451 dirty->unit_y1 >= crtc_height ||
2452 dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0)
2453 continue;
2454
2455 /* Clip right and bottom to crtc limits */
2456 dirty->unit_x2 = min_t(s32, dirty->unit_x2,
2457 crtc_width);
2458 dirty->unit_y2 = min_t(s32, dirty->unit_y2,
2459 crtc_height);
2460
2461 /* Clip left and top to crtc limits */
2462 clip_left = min_t(s32, dirty->unit_x1, 0);
2463 clip_top = min_t(s32, dirty->unit_y1, 0);
2464 dirty->unit_x1 -= clip_left;
2465 dirty->unit_y1 -= clip_top;
2466 dirty->fb_x -= clip_left;
2467 dirty->fb_y -= clip_top;
2468
2469 dirty->clip(dirty);
2470 }
2471
2472 dirty->fifo_commit(dirty);
2473 }
2474
2475 return 0;
2476 }
2477
2478 /**
2479 * vmw_kms_helper_validation_finish - Helper for post KMS command submission
2480 * cleanup and fencing
2481 * @dev_priv: Pointer to the device-private struct
2482 * @file_priv: Pointer identifying the client when user-space fencing is used
2483 * @ctx: Pointer to the validation context
2484 * @out_fence: If non-NULL, returned refcounted fence-pointer
2485 * @user_fence_rep: If non-NULL, pointer to user-space address area
2486 * in which to copy user-space fence info
2487 */
vmw_kms_helper_validation_finish(struct vmw_private * dev_priv,struct drm_file * file_priv,struct vmw_validation_context * ctx,struct vmw_fence_obj ** out_fence,struct drm_vmw_fence_rep __user * user_fence_rep)2488 void vmw_kms_helper_validation_finish(struct vmw_private *dev_priv,
2489 struct drm_file *file_priv,
2490 struct vmw_validation_context *ctx,
2491 struct vmw_fence_obj **out_fence,
2492 struct drm_vmw_fence_rep __user *
2493 user_fence_rep)
2494 {
2495 struct vmw_fence_obj *fence = NULL;
2496 uint32_t handle = 0;
2497 int ret = 0;
2498
2499 if (file_priv || user_fence_rep || vmw_validation_has_bos(ctx) ||
2500 out_fence)
2501 ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
2502 file_priv ? &handle : NULL);
2503 vmw_validation_done(ctx, fence);
2504 if (file_priv)
2505 vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv),
2506 ret, user_fence_rep, fence,
2507 handle, -1, NULL);
2508 if (out_fence)
2509 *out_fence = fence;
2510 else
2511 vmw_fence_obj_unreference(&fence);
2512 }
2513
2514 /**
2515 * vmw_kms_update_proxy - Helper function to update a proxy surface from
2516 * its backing MOB.
2517 *
2518 * @res: Pointer to the surface resource
2519 * @clips: Clip rects in framebuffer (surface) space.
2520 * @num_clips: Number of clips in @clips.
2521 * @increment: Integer with which to increment the clip counter when looping.
2522 * Used to skip a predetermined number of clip rects.
2523 *
2524 * This function makes sure the proxy surface is updated from its backing MOB
2525 * using the region given by @clips. The surface resource @res and its backing
2526 * MOB needs to be reserved and validated on call.
2527 */
vmw_kms_update_proxy(struct vmw_resource * res,const struct drm_clip_rect * clips,unsigned num_clips,int increment)2528 int vmw_kms_update_proxy(struct vmw_resource *res,
2529 const struct drm_clip_rect *clips,
2530 unsigned num_clips,
2531 int increment)
2532 {
2533 struct vmw_private *dev_priv = res->dev_priv;
2534 struct drm_vmw_size *size = &vmw_res_to_srf(res)->metadata.base_size;
2535 struct {
2536 SVGA3dCmdHeader header;
2537 SVGA3dCmdUpdateGBImage body;
2538 } *cmd;
2539 SVGA3dBox *box;
2540 size_t copy_size = 0;
2541 int i;
2542
2543 if (!clips)
2544 return 0;
2545
2546 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd) * num_clips);
2547 if (!cmd)
2548 return -ENOMEM;
2549
2550 for (i = 0; i < num_clips; ++i, clips += increment, ++cmd) {
2551 box = &cmd->body.box;
2552
2553 cmd->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
2554 cmd->header.size = sizeof(cmd->body);
2555 cmd->body.image.sid = res->id;
2556 cmd->body.image.face = 0;
2557 cmd->body.image.mipmap = 0;
2558
2559 if (clips->x1 > size->width || clips->x2 > size->width ||
2560 clips->y1 > size->height || clips->y2 > size->height) {
2561 DRM_ERROR("Invalid clips outsize of framebuffer.\n");
2562 return -EINVAL;
2563 }
2564
2565 box->x = clips->x1;
2566 box->y = clips->y1;
2567 box->z = 0;
2568 box->w = clips->x2 - clips->x1;
2569 box->h = clips->y2 - clips->y1;
2570 box->d = 1;
2571
2572 copy_size += sizeof(*cmd);
2573 }
2574
2575 vmw_cmd_commit(dev_priv, copy_size);
2576
2577 return 0;
2578 }
2579
vmw_kms_fbdev_init_data(struct vmw_private * dev_priv,unsigned unit,u32 max_width,u32 max_height,struct drm_connector ** p_con,struct drm_crtc ** p_crtc,struct drm_display_mode ** p_mode)2580 int vmw_kms_fbdev_init_data(struct vmw_private *dev_priv,
2581 unsigned unit,
2582 u32 max_width,
2583 u32 max_height,
2584 struct drm_connector **p_con,
2585 struct drm_crtc **p_crtc,
2586 struct drm_display_mode **p_mode)
2587 {
2588 struct drm_connector *con;
2589 struct vmw_display_unit *du;
2590 struct drm_display_mode *mode;
2591 int i = 0;
2592 int ret = 0;
2593
2594 mutex_lock(&dev_priv->drm.mode_config.mutex);
2595 list_for_each_entry(con, &dev_priv->drm.mode_config.connector_list,
2596 head) {
2597 if (i == unit)
2598 break;
2599
2600 ++i;
2601 }
2602
2603 if (&con->head == &dev_priv->drm.mode_config.connector_list) {
2604 DRM_ERROR("Could not find initial display unit.\n");
2605 ret = -EINVAL;
2606 goto out_unlock;
2607 }
2608
2609 if (list_empty(&con->modes))
2610 (void) vmw_du_connector_fill_modes(con, max_width, max_height);
2611
2612 if (list_empty(&con->modes)) {
2613 DRM_ERROR("Could not find initial display mode.\n");
2614 ret = -EINVAL;
2615 goto out_unlock;
2616 }
2617
2618 du = vmw_connector_to_du(con);
2619 *p_con = con;
2620 *p_crtc = &du->crtc;
2621
2622 list_for_each_entry(mode, &con->modes, head) {
2623 if (mode->type & DRM_MODE_TYPE_PREFERRED)
2624 break;
2625 }
2626
2627 if (&mode->head == &con->modes) {
2628 WARN_ONCE(true, "Could not find initial preferred mode.\n");
2629 *p_mode = list_first_entry(&con->modes,
2630 struct drm_display_mode,
2631 head);
2632 } else {
2633 *p_mode = mode;
2634 }
2635
2636 out_unlock:
2637 mutex_unlock(&dev_priv->drm.mode_config.mutex);
2638
2639 return ret;
2640 }
2641
2642 /**
2643 * vmw_kms_create_implicit_placement_proparty - Set up the implicit placement
2644 * property.
2645 *
2646 * @dev_priv: Pointer to a device private struct.
2647 *
2648 * Sets up the implicit placement property unless it's already set up.
2649 */
2650 void
vmw_kms_create_implicit_placement_property(struct vmw_private * dev_priv)2651 vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv)
2652 {
2653 if (dev_priv->implicit_placement_property)
2654 return;
2655
2656 dev_priv->implicit_placement_property =
2657 drm_property_create_range(&dev_priv->drm,
2658 DRM_MODE_PROP_IMMUTABLE,
2659 "implicit_placement", 0, 1);
2660 }
2661
2662 /**
2663 * vmw_kms_suspend - Save modesetting state and turn modesetting off.
2664 *
2665 * @dev: Pointer to the drm device
2666 * Return: 0 on success. Negative error code on failure.
2667 */
vmw_kms_suspend(struct drm_device * dev)2668 int vmw_kms_suspend(struct drm_device *dev)
2669 {
2670 struct vmw_private *dev_priv = vmw_priv(dev);
2671
2672 dev_priv->suspend_state = drm_atomic_helper_suspend(dev);
2673 if (IS_ERR(dev_priv->suspend_state)) {
2674 int ret = PTR_ERR(dev_priv->suspend_state);
2675
2676 DRM_ERROR("Failed kms suspend: %d\n", ret);
2677 dev_priv->suspend_state = NULL;
2678
2679 return ret;
2680 }
2681
2682 return 0;
2683 }
2684
2685
2686 /**
2687 * vmw_kms_resume - Re-enable modesetting and restore state
2688 *
2689 * @dev: Pointer to the drm device
2690 * Return: 0 on success. Negative error code on failure.
2691 *
2692 * State is resumed from a previous vmw_kms_suspend(). It's illegal
2693 * to call this function without a previous vmw_kms_suspend().
2694 */
vmw_kms_resume(struct drm_device * dev)2695 int vmw_kms_resume(struct drm_device *dev)
2696 {
2697 struct vmw_private *dev_priv = vmw_priv(dev);
2698 int ret;
2699
2700 if (WARN_ON(!dev_priv->suspend_state))
2701 return 0;
2702
2703 ret = drm_atomic_helper_resume(dev, dev_priv->suspend_state);
2704 dev_priv->suspend_state = NULL;
2705
2706 return ret;
2707 }
2708
2709 /**
2710 * vmw_kms_lost_device - Notify kms that modesetting capabilities will be lost
2711 *
2712 * @dev: Pointer to the drm device
2713 */
vmw_kms_lost_device(struct drm_device * dev)2714 void vmw_kms_lost_device(struct drm_device *dev)
2715 {
2716 drm_atomic_helper_shutdown(dev);
2717 }
2718
2719 /**
2720 * vmw_du_helper_plane_update - Helper to do plane update on a display unit.
2721 * @update: The closure structure.
2722 *
2723 * Call this helper after setting callbacks in &vmw_du_update_plane to do plane
2724 * update on display unit.
2725 *
2726 * Return: 0 on success or a negative error code on failure.
2727 */
vmw_du_helper_plane_update(struct vmw_du_update_plane * update)2728 int vmw_du_helper_plane_update(struct vmw_du_update_plane *update)
2729 {
2730 struct drm_plane_state *state = update->plane->state;
2731 struct drm_plane_state *old_state = update->old_state;
2732 struct drm_atomic_helper_damage_iter iter;
2733 struct drm_rect clip;
2734 struct drm_rect bb;
2735 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
2736 uint32_t reserved_size = 0;
2737 uint32_t submit_size = 0;
2738 uint32_t curr_size = 0;
2739 uint32_t num_hits = 0;
2740 void *cmd_start;
2741 char *cmd_next;
2742 int ret;
2743
2744 /*
2745 * Iterate in advance to check if really need plane update and find the
2746 * number of clips that actually are in plane src for fifo allocation.
2747 */
2748 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
2749 drm_atomic_for_each_plane_damage(&iter, &clip)
2750 num_hits++;
2751
2752 if (num_hits == 0)
2753 return 0;
2754
2755 if (update->vfb->bo) {
2756 struct vmw_framebuffer_bo *vfbbo =
2757 container_of(update->vfb, typeof(*vfbbo), base);
2758
2759 ret = vmw_validation_add_bo(&val_ctx, vfbbo->buffer, false,
2760 update->cpu_blit);
2761 } else {
2762 struct vmw_framebuffer_surface *vfbs =
2763 container_of(update->vfb, typeof(*vfbs), base);
2764
2765 ret = vmw_validation_add_resource(&val_ctx, &vfbs->surface->res,
2766 0, VMW_RES_DIRTY_NONE, NULL,
2767 NULL);
2768 }
2769
2770 if (ret)
2771 return ret;
2772
2773 ret = vmw_validation_prepare(&val_ctx, update->mutex, update->intr);
2774 if (ret)
2775 goto out_unref;
2776
2777 reserved_size = update->calc_fifo_size(update, num_hits);
2778 cmd_start = VMW_CMD_RESERVE(update->dev_priv, reserved_size);
2779 if (!cmd_start) {
2780 ret = -ENOMEM;
2781 goto out_revert;
2782 }
2783
2784 cmd_next = cmd_start;
2785
2786 if (update->post_prepare) {
2787 curr_size = update->post_prepare(update, cmd_next);
2788 cmd_next += curr_size;
2789 submit_size += curr_size;
2790 }
2791
2792 if (update->pre_clip) {
2793 curr_size = update->pre_clip(update, cmd_next, num_hits);
2794 cmd_next += curr_size;
2795 submit_size += curr_size;
2796 }
2797
2798 bb.x1 = INT_MAX;
2799 bb.y1 = INT_MAX;
2800 bb.x2 = INT_MIN;
2801 bb.y2 = INT_MIN;
2802
2803 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
2804 drm_atomic_for_each_plane_damage(&iter, &clip) {
2805 uint32_t fb_x = clip.x1;
2806 uint32_t fb_y = clip.y1;
2807
2808 vmw_du_translate_to_crtc(state, &clip);
2809 if (update->clip) {
2810 curr_size = update->clip(update, cmd_next, &clip, fb_x,
2811 fb_y);
2812 cmd_next += curr_size;
2813 submit_size += curr_size;
2814 }
2815 bb.x1 = min_t(int, bb.x1, clip.x1);
2816 bb.y1 = min_t(int, bb.y1, clip.y1);
2817 bb.x2 = max_t(int, bb.x2, clip.x2);
2818 bb.y2 = max_t(int, bb.y2, clip.y2);
2819 }
2820
2821 curr_size = update->post_clip(update, cmd_next, &bb);
2822 submit_size += curr_size;
2823
2824 if (reserved_size < submit_size)
2825 submit_size = 0;
2826
2827 vmw_cmd_commit(update->dev_priv, submit_size);
2828
2829 vmw_kms_helper_validation_finish(update->dev_priv, NULL, &val_ctx,
2830 update->out_fence, NULL);
2831 return ret;
2832
2833 out_revert:
2834 vmw_validation_revert(&val_ctx);
2835
2836 out_unref:
2837 vmw_validation_unref_lists(&val_ctx);
2838 return ret;
2839 }
2840