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1/**************************************************************************
2 *
3 * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
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 "vmwgfx_kms.h"
29
30/* Might need a hrtimer here? */
31#define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
32
33static int vmw_surface_dmabuf_pin(struct vmw_framebuffer *vfb);
34static int vmw_surface_dmabuf_unpin(struct vmw_framebuffer *vfb);
35
36void vmw_display_unit_cleanup(struct vmw_display_unit *du)
37{
38 if (du->cursor_surface)
39 vmw_surface_unreference(&du->cursor_surface);
40 if (du->cursor_dmabuf)
41 vmw_dmabuf_unreference(&du->cursor_dmabuf);
42 drm_crtc_cleanup(&du->crtc);
43 drm_encoder_cleanup(&du->encoder);
44 drm_connector_cleanup(&du->connector);
45}
46
47/*
48 * Display Unit Cursor functions
49 */
50
51int vmw_cursor_update_image(struct vmw_private *dev_priv,
52 u32 *image, u32 width, u32 height,
53 u32 hotspotX, u32 hotspotY)
54{
55 struct {
56 u32 cmd;
57 SVGAFifoCmdDefineAlphaCursor cursor;
58 } *cmd;
59 u32 image_size = width * height * 4;
60 u32 cmd_size = sizeof(*cmd) + image_size;
61
62 if (!image)
63 return -EINVAL;
64
65 cmd = vmw_fifo_reserve(dev_priv, cmd_size);
66 if (unlikely(cmd == NULL)) {
67 DRM_ERROR("Fifo reserve failed.\n");
68 return -ENOMEM;
69 }
70
71 memset(cmd, 0, sizeof(*cmd));
72
73 memcpy(&cmd[1], image, image_size);
74
75 cmd->cmd = cpu_to_le32(SVGA_CMD_DEFINE_ALPHA_CURSOR);
76 cmd->cursor.id = cpu_to_le32(0);
77 cmd->cursor.width = cpu_to_le32(width);
78 cmd->cursor.height = cpu_to_le32(height);
79 cmd->cursor.hotspotX = cpu_to_le32(hotspotX);
80 cmd->cursor.hotspotY = cpu_to_le32(hotspotY);
81
82 vmw_fifo_commit(dev_priv, cmd_size);
83
84 return 0;
85}
86
87void vmw_cursor_update_position(struct vmw_private *dev_priv,
88 bool show, int x, int y)
89{
90 __le32 __iomem *fifo_mem = dev_priv->mmio_virt;
91 uint32_t count;
92
93 iowrite32(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
94 iowrite32(x, fifo_mem + SVGA_FIFO_CURSOR_X);
95 iowrite32(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
96 count = ioread32(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
97 iowrite32(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
98}
99
100int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
101 uint32_t handle, uint32_t width, uint32_t height)
102{
103 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
104 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
105 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
106 struct vmw_surface *surface = NULL;
107 struct vmw_dma_buffer *dmabuf = NULL;
108 int ret;
109
110 if (handle) {
111 ret = vmw_user_surface_lookup_handle(dev_priv, tfile,
112 handle, &surface);
113 if (!ret) {
114 if (!surface->snooper.image) {
115 DRM_ERROR("surface not suitable for cursor\n");
116 return -EINVAL;
117 }
118 } else {
119 ret = vmw_user_dmabuf_lookup(tfile,
120 handle, &dmabuf);
121 if (ret) {
122 DRM_ERROR("failed to find surface or dmabuf: %i\n", ret);
123 return -EINVAL;
124 }
125 }
126 }
127
128 /* takedown old cursor */
129 if (du->cursor_surface) {
130 du->cursor_surface->snooper.crtc = NULL;
131 vmw_surface_unreference(&du->cursor_surface);
132 }
133 if (du->cursor_dmabuf)
134 vmw_dmabuf_unreference(&du->cursor_dmabuf);
135
136 /* setup new image */
137 if (surface) {
138 /* vmw_user_surface_lookup takes one reference */
139 du->cursor_surface = surface;
140
141 du->cursor_surface->snooper.crtc = crtc;
142 du->cursor_age = du->cursor_surface->snooper.age;
143 vmw_cursor_update_image(dev_priv, surface->snooper.image,
144 64, 64, du->hotspot_x, du->hotspot_y);
145 } else if (dmabuf) {
146 struct ttm_bo_kmap_obj map;
147 unsigned long kmap_offset;
148 unsigned long kmap_num;
149 void *virtual;
150 bool dummy;
151
152 /* vmw_user_surface_lookup takes one reference */
153 du->cursor_dmabuf = dmabuf;
154
155 kmap_offset = 0;
156 kmap_num = (64*64*4) >> PAGE_SHIFT;
157
158 ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0);
159 if (unlikely(ret != 0)) {
160 DRM_ERROR("reserve failed\n");
161 return -EINVAL;
162 }
163
164 ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
165 if (unlikely(ret != 0))
166 goto err_unreserve;
167
168 virtual = ttm_kmap_obj_virtual(&map, &dummy);
169 vmw_cursor_update_image(dev_priv, virtual, 64, 64,
170 du->hotspot_x, du->hotspot_y);
171
172 ttm_bo_kunmap(&map);
173err_unreserve:
174 ttm_bo_unreserve(&dmabuf->base);
175
176 } else {
177 vmw_cursor_update_position(dev_priv, false, 0, 0);
178 return 0;
179 }
180
181 vmw_cursor_update_position(dev_priv, true, du->cursor_x, du->cursor_y);
182
183 return 0;
184}
185
186int vmw_du_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
187{
188 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
189 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
190 bool shown = du->cursor_surface || du->cursor_dmabuf ? true : false;
191
192 du->cursor_x = x + crtc->x;
193 du->cursor_y = y + crtc->y;
194
195 vmw_cursor_update_position(dev_priv, shown,
196 du->cursor_x, du->cursor_y);
197
198 return 0;
199}
200
201void vmw_kms_cursor_snoop(struct vmw_surface *srf,
202 struct ttm_object_file *tfile,
203 struct ttm_buffer_object *bo,
204 SVGA3dCmdHeader *header)
205{
206 struct ttm_bo_kmap_obj map;
207 unsigned long kmap_offset;
208 unsigned long kmap_num;
209 SVGA3dCopyBox *box;
210 unsigned box_count;
211 void *virtual;
212 bool dummy;
213 struct vmw_dma_cmd {
214 SVGA3dCmdHeader header;
215 SVGA3dCmdSurfaceDMA dma;
216 } *cmd;
217 int ret;
218
219 cmd = container_of(header, struct vmw_dma_cmd, header);
220
221 /* No snooper installed */
222 if (!srf->snooper.image)
223 return;
224
225 if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
226 DRM_ERROR("face and mipmap for cursors should never != 0\n");
227 return;
228 }
229
230 if (cmd->header.size < 64) {
231 DRM_ERROR("at least one full copy box must be given\n");
232 return;
233 }
234
235 box = (SVGA3dCopyBox *)&cmd[1];
236 box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
237 sizeof(SVGA3dCopyBox);
238
239 if (cmd->dma.guest.pitch != (64 * 4) ||
240 cmd->dma.guest.ptr.offset % PAGE_SIZE ||
241 box->x != 0 || box->y != 0 || box->z != 0 ||
242 box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
243 box->w != 64 || box->h != 64 || box->d != 1 ||
244 box_count != 1) {
245 /* TODO handle none page aligned offsets */
246 /* TODO handle partial uploads and pitch != 256 */
247 /* TODO handle more then one copy (size != 64) */
248 DRM_ERROR("lazy programmer, can't handle weird stuff\n");
249 return;
250 }
251
252 kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
253 kmap_num = (64*64*4) >> PAGE_SHIFT;
254
255 ret = ttm_bo_reserve(bo, true, false, false, 0);
256 if (unlikely(ret != 0)) {
257 DRM_ERROR("reserve failed\n");
258 return;
259 }
260
261 ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
262 if (unlikely(ret != 0))
263 goto err_unreserve;
264
265 virtual = ttm_kmap_obj_virtual(&map, &dummy);
266
267 memcpy(srf->snooper.image, virtual, 64*64*4);
268 srf->snooper.age++;
269
270 /* we can't call this function from this function since execbuf has
271 * reserved fifo space.
272 *
273 * if (srf->snooper.crtc)
274 * vmw_ldu_crtc_cursor_update_image(dev_priv,
275 * srf->snooper.image, 64, 64,
276 * du->hotspot_x, du->hotspot_y);
277 */
278
279 ttm_bo_kunmap(&map);
280err_unreserve:
281 ttm_bo_unreserve(bo);
282}
283
284void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
285{
286 struct drm_device *dev = dev_priv->dev;
287 struct vmw_display_unit *du;
288 struct drm_crtc *crtc;
289
290 mutex_lock(&dev->mode_config.mutex);
291
292 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
293 du = vmw_crtc_to_du(crtc);
294 if (!du->cursor_surface ||
295 du->cursor_age == du->cursor_surface->snooper.age)
296 continue;
297
298 du->cursor_age = du->cursor_surface->snooper.age;
299 vmw_cursor_update_image(dev_priv,
300 du->cursor_surface->snooper.image,
301 64, 64, du->hotspot_x, du->hotspot_y);
302 }
303
304 mutex_unlock(&dev->mode_config.mutex);
305}
306
307/*
308 * Generic framebuffer code
309 */
310
311int vmw_framebuffer_create_handle(struct drm_framebuffer *fb,
312 struct drm_file *file_priv,
313 unsigned int *handle)
314{
315 if (handle)
316 handle = 0;
317
318 return 0;
319}
320
321/*
322 * Surface framebuffer code
323 */
324
325#define vmw_framebuffer_to_vfbs(x) \
326 container_of(x, struct vmw_framebuffer_surface, base.base)
327
328struct vmw_framebuffer_surface {
329 struct vmw_framebuffer base;
330 struct vmw_surface *surface;
331 struct vmw_dma_buffer *buffer;
332 struct delayed_work d_work;
333 struct mutex work_lock;
334 bool present_fs;
335 struct list_head head;
336 struct drm_master *master;
337};
338
339/**
340 * vmw_kms_idle_workqueues - Flush workqueues on this master
341 *
342 * @vmaster - Pointer identifying the master, for the surfaces of which
343 * we idle the dirty work queues.
344 *
345 * This function should be called with the ttm lock held in exclusive mode
346 * to idle all dirty work queues before the fifo is taken down.
347 *
348 * The work task may actually requeue itself, but after the flush returns we're
349 * sure that there's nothing to present, since the ttm lock is held in
350 * exclusive mode, so the fifo will never get used.
351 */
352
353void vmw_kms_idle_workqueues(struct vmw_master *vmaster)
354{
355 struct vmw_framebuffer_surface *entry;
356
357 mutex_lock(&vmaster->fb_surf_mutex);
358 list_for_each_entry(entry, &vmaster->fb_surf, head) {
359 if (cancel_delayed_work_sync(&entry->d_work))
360 (void) entry->d_work.work.func(&entry->d_work.work);
361
362 (void) cancel_delayed_work_sync(&entry->d_work);
363 }
364 mutex_unlock(&vmaster->fb_surf_mutex);
365}
366
367void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
368{
369 struct vmw_framebuffer_surface *vfbs =
370 vmw_framebuffer_to_vfbs(framebuffer);
371 struct vmw_master *vmaster = vmw_master(vfbs->master);
372
373
374 mutex_lock(&vmaster->fb_surf_mutex);
375 list_del(&vfbs->head);
376 mutex_unlock(&vmaster->fb_surf_mutex);
377
378 cancel_delayed_work_sync(&vfbs->d_work);
379 drm_master_put(&vfbs->master);
380 drm_framebuffer_cleanup(framebuffer);
381 vmw_surface_unreference(&vfbs->surface);
382
383 kfree(vfbs);
384}
385
386static void vmw_framebuffer_present_fs_callback(struct work_struct *work)
387{
388 struct delayed_work *d_work =
389 container_of(work, struct delayed_work, work);
390 struct vmw_framebuffer_surface *vfbs =
391 container_of(d_work, struct vmw_framebuffer_surface, d_work);
392 struct vmw_surface *surf = vfbs->surface;
393 struct drm_framebuffer *framebuffer = &vfbs->base.base;
394 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
395
396 struct {
397 SVGA3dCmdHeader header;
398 SVGA3dCmdPresent body;
399 SVGA3dCopyRect cr;
400 } *cmd;
401
402 /**
403 * Strictly we should take the ttm_lock in read mode before accessing
404 * the fifo, to make sure the fifo is present and up. However,
405 * instead we flush all workqueues under the ttm lock in exclusive mode
406 * before taking down the fifo.
407 */
408 mutex_lock(&vfbs->work_lock);
409 if (!vfbs->present_fs)
410 goto out_unlock;
411
412 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
413 if (unlikely(cmd == NULL))
414 goto out_resched;
415
416 cmd->header.id = cpu_to_le32(SVGA_3D_CMD_PRESENT);
417 cmd->header.size = cpu_to_le32(sizeof(cmd->body) + sizeof(cmd->cr));
418 cmd->body.sid = cpu_to_le32(surf->res.id);
419 cmd->cr.x = cpu_to_le32(0);
420 cmd->cr.y = cpu_to_le32(0);
421 cmd->cr.srcx = cmd->cr.x;
422 cmd->cr.srcy = cmd->cr.y;
423 cmd->cr.w = cpu_to_le32(framebuffer->width);
424 cmd->cr.h = cpu_to_le32(framebuffer->height);
425 vfbs->present_fs = false;
426 vmw_fifo_commit(dev_priv, sizeof(*cmd));
427out_resched:
428 /**
429 * Will not re-add if already pending.
430 */
431 schedule_delayed_work(&vfbs->d_work, VMWGFX_PRESENT_RATE);
432out_unlock:
433 mutex_unlock(&vfbs->work_lock);
434}
435
436
437int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
438 struct drm_file *file_priv,
439 unsigned flags, unsigned color,
440 struct drm_clip_rect *clips,
441 unsigned num_clips)
442{
443 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
444 struct vmw_master *vmaster = vmw_master(file_priv->master);
445 struct vmw_framebuffer_surface *vfbs =
446 vmw_framebuffer_to_vfbs(framebuffer);
447 struct vmw_surface *surf = vfbs->surface;
448 struct drm_clip_rect norect;
449 SVGA3dCopyRect *cr;
450 int i, inc = 1;
451 int ret;
452
453 struct {
454 SVGA3dCmdHeader header;
455 SVGA3dCmdPresent body;
456 SVGA3dCopyRect cr;
457 } *cmd;
458
459 if (unlikely(vfbs->master != file_priv->master))
460 return -EINVAL;
461
462 ret = ttm_read_lock(&vmaster->lock, true);
463 if (unlikely(ret != 0))
464 return ret;
465
466 if (!num_clips ||
467 !(dev_priv->fifo.capabilities &
468 SVGA_FIFO_CAP_SCREEN_OBJECT)) {
469 int ret;
470
471 mutex_lock(&vfbs->work_lock);
472 vfbs->present_fs = true;
473 ret = schedule_delayed_work(&vfbs->d_work, VMWGFX_PRESENT_RATE);
474 mutex_unlock(&vfbs->work_lock);
475 if (ret) {
476 /**
477 * No work pending, Force immediate present.
478 */
479 vmw_framebuffer_present_fs_callback(&vfbs->d_work.work);
480 }
481 ttm_read_unlock(&vmaster->lock);
482 return 0;
483 }
484
485 if (!num_clips) {
486 num_clips = 1;
487 clips = &norect;
488 norect.x1 = norect.y1 = 0;
489 norect.x2 = framebuffer->width;
490 norect.y2 = framebuffer->height;
491 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
492 num_clips /= 2;
493 inc = 2; /* skip source rects */
494 }
495
496 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) + (num_clips - 1) * sizeof(cmd->cr));
497 if (unlikely(cmd == NULL)) {
498 DRM_ERROR("Fifo reserve failed.\n");
499 ttm_read_unlock(&vmaster->lock);
500 return -ENOMEM;
501 }
502
503 memset(cmd, 0, sizeof(*cmd));
504
505 cmd->header.id = cpu_to_le32(SVGA_3D_CMD_PRESENT);
506 cmd->header.size = cpu_to_le32(sizeof(cmd->body) + num_clips * sizeof(cmd->cr));
507 cmd->body.sid = cpu_to_le32(surf->res.id);
508
509 for (i = 0, cr = &cmd->cr; i < num_clips; i++, cr++, clips += inc) {
510 cr->x = cpu_to_le16(clips->x1);
511 cr->y = cpu_to_le16(clips->y1);
512 cr->srcx = cr->x;
513 cr->srcy = cr->y;
514 cr->w = cpu_to_le16(clips->x2 - clips->x1);
515 cr->h = cpu_to_le16(clips->y2 - clips->y1);
516 }
517
518 vmw_fifo_commit(dev_priv, sizeof(*cmd) + (num_clips - 1) * sizeof(cmd->cr));
519 ttm_read_unlock(&vmaster->lock);
520 return 0;
521}
522
523static struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
524 .destroy = vmw_framebuffer_surface_destroy,
525 .dirty = vmw_framebuffer_surface_dirty,
526 .create_handle = vmw_framebuffer_create_handle,
527};
528
529static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
530 struct drm_file *file_priv,
531 struct vmw_surface *surface,
532 struct vmw_framebuffer **out,
533 const struct drm_mode_fb_cmd
534 *mode_cmd)
535
536{
537 struct drm_device *dev = dev_priv->dev;
538 struct vmw_framebuffer_surface *vfbs;
539 enum SVGA3dSurfaceFormat format;
540 struct vmw_master *vmaster = vmw_master(file_priv->master);
541 int ret;
542
543 /*
544 * Sanity checks.
545 */
546
547 if (unlikely(surface->mip_levels[0] != 1 ||
548 surface->num_sizes != 1 ||
549 surface->sizes[0].width < mode_cmd->width ||
550 surface->sizes[0].height < mode_cmd->height ||
551 surface->sizes[0].depth != 1)) {
552 DRM_ERROR("Incompatible surface dimensions "
553 "for requested mode.\n");
554 return -EINVAL;
555 }
556
557 switch (mode_cmd->depth) {
558 case 32:
559 format = SVGA3D_A8R8G8B8;
560 break;
561 case 24:
562 format = SVGA3D_X8R8G8B8;
563 break;
564 case 16:
565 format = SVGA3D_R5G6B5;
566 break;
567 case 15:
568 format = SVGA3D_A1R5G5B5;
569 break;
570 default:
571 DRM_ERROR("Invalid color depth: %d\n", mode_cmd->depth);
572 return -EINVAL;
573 }
574
575 if (unlikely(format != surface->format)) {
576 DRM_ERROR("Invalid surface format for requested mode.\n");
577 return -EINVAL;
578 }
579
580 vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
581 if (!vfbs) {
582 ret = -ENOMEM;
583 goto out_err1;
584 }
585
586 ret = drm_framebuffer_init(dev, &vfbs->base.base,
587 &vmw_framebuffer_surface_funcs);
588 if (ret)
589 goto out_err2;
590
591 if (!vmw_surface_reference(surface)) {
592 DRM_ERROR("failed to reference surface %p\n", surface);
593 goto out_err3;
594 }
595
596 /* XXX get the first 3 from the surface info */
597 vfbs->base.base.bits_per_pixel = mode_cmd->bpp;
598 vfbs->base.base.pitch = mode_cmd->pitch;
599 vfbs->base.base.depth = mode_cmd->depth;
600 vfbs->base.base.width = mode_cmd->width;
601 vfbs->base.base.height = mode_cmd->height;
602 vfbs->base.pin = &vmw_surface_dmabuf_pin;
603 vfbs->base.unpin = &vmw_surface_dmabuf_unpin;
604 vfbs->surface = surface;
605 vfbs->master = drm_master_get(file_priv->master);
606 mutex_init(&vfbs->work_lock);
607
608 mutex_lock(&vmaster->fb_surf_mutex);
609 INIT_DELAYED_WORK(&vfbs->d_work, &vmw_framebuffer_present_fs_callback);
610 list_add_tail(&vfbs->head, &vmaster->fb_surf);
611 mutex_unlock(&vmaster->fb_surf_mutex);
612
613 *out = &vfbs->base;
614
615 return 0;
616
617out_err3:
618 drm_framebuffer_cleanup(&vfbs->base.base);
619out_err2:
620 kfree(vfbs);
621out_err1:
622 return ret;
623}
624
625/*
626 * Dmabuf framebuffer code
627 */
628
629#define vmw_framebuffer_to_vfbd(x) \
630 container_of(x, struct vmw_framebuffer_dmabuf, base.base)
631
632struct vmw_framebuffer_dmabuf {
633 struct vmw_framebuffer base;
634 struct vmw_dma_buffer *buffer;
635};
636
637void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
638{
639 struct vmw_framebuffer_dmabuf *vfbd =
640 vmw_framebuffer_to_vfbd(framebuffer);
641
642 drm_framebuffer_cleanup(framebuffer);
643 vmw_dmabuf_unreference(&vfbd->buffer);
644
645 kfree(vfbd);
646}
647
648int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
649 struct drm_file *file_priv,
650 unsigned flags, unsigned color,
651 struct drm_clip_rect *clips,
652 unsigned num_clips)
653{
654 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
655 struct vmw_master *vmaster = vmw_master(file_priv->master);
656 struct drm_clip_rect norect;
657 int ret;
658 struct {
659 uint32_t header;
660 SVGAFifoCmdUpdate body;
661 } *cmd;
662 int i, increment = 1;
663
664 ret = ttm_read_lock(&vmaster->lock, true);
665 if (unlikely(ret != 0))
666 return ret;
667
668 if (!num_clips) {
669 num_clips = 1;
670 clips = &norect;
671 norect.x1 = norect.y1 = 0;
672 norect.x2 = framebuffer->width;
673 norect.y2 = framebuffer->height;
674 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
675 num_clips /= 2;
676 increment = 2;
677 }
678
679 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) * num_clips);
680 if (unlikely(cmd == NULL)) {
681 DRM_ERROR("Fifo reserve failed.\n");
682 ttm_read_unlock(&vmaster->lock);
683 return -ENOMEM;
684 }
685
686 for (i = 0; i < num_clips; i++, clips += increment) {
687 cmd[i].header = cpu_to_le32(SVGA_CMD_UPDATE);
688 cmd[i].body.x = cpu_to_le32(clips->x1);
689 cmd[i].body.y = cpu_to_le32(clips->y1);
690 cmd[i].body.width = cpu_to_le32(clips->x2 - clips->x1);
691 cmd[i].body.height = cpu_to_le32(clips->y2 - clips->y1);
692 }
693
694 vmw_fifo_commit(dev_priv, sizeof(*cmd) * num_clips);
695 ttm_read_unlock(&vmaster->lock);
696
697 return 0;
698}
699
700static struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
701 .destroy = vmw_framebuffer_dmabuf_destroy,
702 .dirty = vmw_framebuffer_dmabuf_dirty,
703 .create_handle = vmw_framebuffer_create_handle,
704};
705
706static int vmw_surface_dmabuf_pin(struct vmw_framebuffer *vfb)
707{
708 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
709 struct vmw_framebuffer_surface *vfbs =
710 vmw_framebuffer_to_vfbs(&vfb->base);
711 unsigned long size = vfbs->base.base.pitch * vfbs->base.base.height;
712 int ret;
713
714 vfbs->buffer = kzalloc(sizeof(*vfbs->buffer), GFP_KERNEL);
715 if (unlikely(vfbs->buffer == NULL))
716 return -ENOMEM;
717
718 vmw_overlay_pause_all(dev_priv);
719 ret = vmw_dmabuf_init(dev_priv, vfbs->buffer, size,
720 &vmw_vram_ne_placement,
721 false, &vmw_dmabuf_bo_free);
722 vmw_overlay_resume_all(dev_priv);
723 if (unlikely(ret != 0))
724 vfbs->buffer = NULL;
725
726 return ret;
727}
728
729static int vmw_surface_dmabuf_unpin(struct vmw_framebuffer *vfb)
730{
731 struct ttm_buffer_object *bo;
732 struct vmw_framebuffer_surface *vfbs =
733 vmw_framebuffer_to_vfbs(&vfb->base);
734
735 if (unlikely(vfbs->buffer == NULL))
736 return 0;
737
738 bo = &vfbs->buffer->base;
739 ttm_bo_unref(&bo);
740 vfbs->buffer = NULL;
741
742 return 0;
743}
744
745static int vmw_framebuffer_dmabuf_pin(struct vmw_framebuffer *vfb)
746{
747 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
748 struct vmw_framebuffer_dmabuf *vfbd =
749 vmw_framebuffer_to_vfbd(&vfb->base);
750 int ret;
751
752
753 vmw_overlay_pause_all(dev_priv);
754
755 ret = vmw_dmabuf_to_start_of_vram(dev_priv, vfbd->buffer);
756
757 vmw_overlay_resume_all(dev_priv);
758
759 WARN_ON(ret != 0);
760
761 return 0;
762}
763
764static int vmw_framebuffer_dmabuf_unpin(struct vmw_framebuffer *vfb)
765{
766 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
767 struct vmw_framebuffer_dmabuf *vfbd =
768 vmw_framebuffer_to_vfbd(&vfb->base);
769
770 if (!vfbd->buffer) {
771 WARN_ON(!vfbd->buffer);
772 return 0;
773 }
774
775 return vmw_dmabuf_from_vram(dev_priv, vfbd->buffer);
776}
777
778static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
779 struct vmw_dma_buffer *dmabuf,
780 struct vmw_framebuffer **out,
781 const struct drm_mode_fb_cmd
782 *mode_cmd)
783
784{
785 struct drm_device *dev = dev_priv->dev;
786 struct vmw_framebuffer_dmabuf *vfbd;
787 unsigned int requested_size;
788 int ret;
789
790 requested_size = mode_cmd->height * mode_cmd->pitch;
791 if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) {
792 DRM_ERROR("Screen buffer object size is too small "
793 "for requested mode.\n");
794 return -EINVAL;
795 }
796
797 vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
798 if (!vfbd) {
799 ret = -ENOMEM;
800 goto out_err1;
801 }
802
803 ret = drm_framebuffer_init(dev, &vfbd->base.base,
804 &vmw_framebuffer_dmabuf_funcs);
805 if (ret)
806 goto out_err2;
807
808 if (!vmw_dmabuf_reference(dmabuf)) {
809 DRM_ERROR("failed to reference dmabuf %p\n", dmabuf);
810 goto out_err3;
811 }
812
813 vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
814 vfbd->base.base.pitch = mode_cmd->pitch;
815 vfbd->base.base.depth = mode_cmd->depth;
816 vfbd->base.base.width = mode_cmd->width;
817 vfbd->base.base.height = mode_cmd->height;
818 vfbd->base.pin = vmw_framebuffer_dmabuf_pin;
819 vfbd->base.unpin = vmw_framebuffer_dmabuf_unpin;
820 vfbd->buffer = dmabuf;
821 *out = &vfbd->base;
822
823 return 0;
824
825out_err3:
826 drm_framebuffer_cleanup(&vfbd->base.base);
827out_err2:
828 kfree(vfbd);
829out_err1:
830 return ret;
831}
832
833/*
834 * Generic Kernel modesetting functions
835 */
836
837static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
838 struct drm_file *file_priv,
839 struct drm_mode_fb_cmd *mode_cmd)
840{
841 struct vmw_private *dev_priv = vmw_priv(dev);
842 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
843 struct vmw_framebuffer *vfb = NULL;
844 struct vmw_surface *surface = NULL;
845 struct vmw_dma_buffer *bo = NULL;
846 u64 required_size;
847 int ret;
848
849 /**
850 * This code should be conditioned on Screen Objects not being used.
851 * If screen objects are used, we can allocate a GMR to hold the
852 * requested framebuffer.
853 */
854
855 required_size = mode_cmd->pitch * mode_cmd->height;
856 if (unlikely(required_size > (u64) dev_priv->vram_size)) {
857 DRM_ERROR("VRAM size is too small for requested mode.\n");
858 return NULL;
859 }
860
861 /**
862 * End conditioned code.
863 */
864
865 ret = vmw_user_surface_lookup_handle(dev_priv, tfile,
866 mode_cmd->handle, &surface);
867 if (ret)
868 goto try_dmabuf;
869
870 if (!surface->scanout)
871 goto err_not_scanout;
872
873 ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv, surface,
874 &vfb, mode_cmd);
875
876 /* vmw_user_surface_lookup takes one ref so does new_fb */
877 vmw_surface_unreference(&surface);
878
879 if (ret) {
880 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
881 return ERR_PTR(ret);
882 }
883 return &vfb->base;
884
885try_dmabuf:
886 DRM_INFO("%s: trying buffer\n", __func__);
887
888 ret = vmw_user_dmabuf_lookup(tfile, mode_cmd->handle, &bo);
889 if (ret) {
890 DRM_ERROR("failed to find buffer: %i\n", ret);
891 return ERR_PTR(-ENOENT);
892 }
893
894 ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
895 mode_cmd);
896
897 /* vmw_user_dmabuf_lookup takes one ref so does new_fb */
898 vmw_dmabuf_unreference(&bo);
899
900 if (ret) {
901 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
902 return ERR_PTR(ret);
903 }
904
905 return &vfb->base;
906
907err_not_scanout:
908 DRM_ERROR("surface not marked as scanout\n");
909 /* vmw_user_surface_lookup takes one ref */
910 vmw_surface_unreference(&surface);
911
912 return ERR_PTR(-EINVAL);
913}
914
915static struct drm_mode_config_funcs vmw_kms_funcs = {
916 .fb_create = vmw_kms_fb_create,
917};
918
919int vmw_kms_init(struct vmw_private *dev_priv)
920{
921 struct drm_device *dev = dev_priv->dev;
922 int ret;
923
924 drm_mode_config_init(dev);
925 dev->mode_config.funcs = &vmw_kms_funcs;
926 dev->mode_config.min_width = 1;
927 dev->mode_config.min_height = 1;
928 /* assumed largest fb size */
929 dev->mode_config.max_width = 8192;
930 dev->mode_config.max_height = 8192;
931
932 ret = vmw_kms_init_legacy_display_system(dev_priv);
933
934 return 0;
935}
936
937int vmw_kms_close(struct vmw_private *dev_priv)
938{
939 /*
940 * Docs says we should take the lock before calling this function
941 * but since it destroys encoders and our destructor calls
942 * drm_encoder_cleanup which takes the lock we deadlock.
943 */
944 drm_mode_config_cleanup(dev_priv->dev);
945 vmw_kms_close_legacy_display_system(dev_priv);
946 return 0;
947}
948
949int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
950 struct drm_file *file_priv)
951{
952 struct drm_vmw_cursor_bypass_arg *arg = data;
953 struct vmw_display_unit *du;
954 struct drm_mode_object *obj;
955 struct drm_crtc *crtc;
956 int ret = 0;
957
958
959 mutex_lock(&dev->mode_config.mutex);
960 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
961
962 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
963 du = vmw_crtc_to_du(crtc);
964 du->hotspot_x = arg->xhot;
965 du->hotspot_y = arg->yhot;
966 }
967
968 mutex_unlock(&dev->mode_config.mutex);
969 return 0;
970 }
971
972 obj = drm_mode_object_find(dev, arg->crtc_id, DRM_MODE_OBJECT_CRTC);
973 if (!obj) {
974 ret = -EINVAL;
975 goto out;
976 }
977
978 crtc = obj_to_crtc(obj);
979 du = vmw_crtc_to_du(crtc);
980
981 du->hotspot_x = arg->xhot;
982 du->hotspot_y = arg->yhot;
983
984out:
985 mutex_unlock(&dev->mode_config.mutex);
986
987 return ret;
988}
989
990void vmw_kms_write_svga(struct vmw_private *vmw_priv,
991 unsigned width, unsigned height, unsigned pitch,
992 unsigned bbp, unsigned depth)
993{
994 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
995 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
996 else if (vmw_fifo_have_pitchlock(vmw_priv))
997 iowrite32(pitch, vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
998 vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
999 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1000 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bbp);
1001 vmw_write(vmw_priv, SVGA_REG_DEPTH, depth);
1002 vmw_write(vmw_priv, SVGA_REG_RED_MASK, 0x00ff0000);
1003 vmw_write(vmw_priv, SVGA_REG_GREEN_MASK, 0x0000ff00);
1004 vmw_write(vmw_priv, SVGA_REG_BLUE_MASK, 0x000000ff);
1005}
1006
1007int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1008{
1009 struct vmw_vga_topology_state *save;
1010 uint32_t i;
1011
1012 vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1013 vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1014 vmw_priv->vga_depth = vmw_read(vmw_priv, SVGA_REG_DEPTH);
1015 vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1016 vmw_priv->vga_pseudo = vmw_read(vmw_priv, SVGA_REG_PSEUDOCOLOR);
1017 vmw_priv->vga_red_mask = vmw_read(vmw_priv, SVGA_REG_RED_MASK);
1018 vmw_priv->vga_blue_mask = vmw_read(vmw_priv, SVGA_REG_BLUE_MASK);
1019 vmw_priv->vga_green_mask = vmw_read(vmw_priv, SVGA_REG_GREEN_MASK);
1020 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1021 vmw_priv->vga_pitchlock =
1022 vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1023 else if (vmw_fifo_have_pitchlock(vmw_priv))
1024 vmw_priv->vga_pitchlock = ioread32(vmw_priv->mmio_virt +
1025 SVGA_FIFO_PITCHLOCK);
1026
1027 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1028 return 0;
1029
1030 vmw_priv->num_displays = vmw_read(vmw_priv,
1031 SVGA_REG_NUM_GUEST_DISPLAYS);
1032
1033 if (vmw_priv->num_displays == 0)
1034 vmw_priv->num_displays = 1;
1035
1036 for (i = 0; i < vmw_priv->num_displays; ++i) {
1037 save = &vmw_priv->vga_save[i];
1038 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1039 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1040 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1041 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1042 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1043 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1044 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1045 if (i == 0 && vmw_priv->num_displays == 1 &&
1046 save->width == 0 && save->height == 0) {
1047
1048 /*
1049 * It should be fairly safe to assume that these
1050 * values are uninitialized.
1051 */
1052
1053 save->width = vmw_priv->vga_width - save->pos_x;
1054 save->height = vmw_priv->vga_height - save->pos_y;
1055 }
1056 }
1057
1058 return 0;
1059}
1060
1061int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1062{
1063 struct vmw_vga_topology_state *save;
1064 uint32_t i;
1065
1066 vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1067 vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1068 vmw_write(vmw_priv, SVGA_REG_DEPTH, vmw_priv->vga_depth);
1069 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1070 vmw_write(vmw_priv, SVGA_REG_PSEUDOCOLOR, vmw_priv->vga_pseudo);
1071 vmw_write(vmw_priv, SVGA_REG_RED_MASK, vmw_priv->vga_red_mask);
1072 vmw_write(vmw_priv, SVGA_REG_GREEN_MASK, vmw_priv->vga_green_mask);
1073 vmw_write(vmw_priv, SVGA_REG_BLUE_MASK, vmw_priv->vga_blue_mask);
1074 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1075 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1076 vmw_priv->vga_pitchlock);
1077 else if (vmw_fifo_have_pitchlock(vmw_priv))
1078 iowrite32(vmw_priv->vga_pitchlock,
1079 vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1080
1081 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1082 return 0;
1083
1084 for (i = 0; i < vmw_priv->num_displays; ++i) {
1085 save = &vmw_priv->vga_save[i];
1086 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1087 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1088 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1089 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1090 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1091 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1092 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1093 }
1094
1095 return 0;
1096}
1097
1098int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
1099 struct drm_file *file_priv)
1100{
1101 struct vmw_private *dev_priv = vmw_priv(dev);
1102 struct drm_vmw_update_layout_arg *arg =
1103 (struct drm_vmw_update_layout_arg *)data;
1104 struct vmw_master *vmaster = vmw_master(file_priv->master);
1105 void __user *user_rects;
1106 struct drm_vmw_rect *rects;
1107 unsigned rects_size;
1108 int ret;
1109
1110 ret = ttm_read_lock(&vmaster->lock, true);
1111 if (unlikely(ret != 0))
1112 return ret;
1113
1114 if (!arg->num_outputs) {
1115 struct drm_vmw_rect def_rect = {0, 0, 800, 600};
1116 vmw_kms_ldu_update_layout(dev_priv, 1, &def_rect);
1117 goto out_unlock;
1118 }
1119
1120 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
1121 rects = kzalloc(rects_size, GFP_KERNEL);
1122 if (unlikely(!rects)) {
1123 ret = -ENOMEM;
1124 goto out_unlock;
1125 }
1126
1127 user_rects = (void __user *)(unsigned long)arg->rects;
1128 ret = copy_from_user(rects, user_rects, rects_size);
1129 if (unlikely(ret != 0)) {
1130 DRM_ERROR("Failed to get rects.\n");
1131 ret = -EFAULT;
1132 goto out_free;
1133 }
1134
1135 vmw_kms_ldu_update_layout(dev_priv, arg->num_outputs, rects);
1136
1137out_free:
1138 kfree(rects);
1139out_unlock:
1140 ttm_read_unlock(&vmaster->lock);
1141 return ret;
1142}
1143
1144bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1145 uint32_t pitch,
1146 uint32_t height)
1147{
1148 return ((u64) pitch * (u64) height) < (u64) dev_priv->vram_size;
1149}
1150
1151u32 vmw_get_vblank_counter(struct drm_device *dev, int crtc)
1152{
1153 return 0;
1154}
1/**************************************************************************
2 *
3 * Copyright © 2009-2015 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
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 "vmwgfx_kms.h"
29#include <drm/drm_plane_helper.h>
30#include <drm/drm_atomic.h>
31#include <drm/drm_atomic_helper.h>
32#include <drm/drm_rect.h>
33
34/* Might need a hrtimer here? */
35#define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
36
37void vmw_du_cleanup(struct vmw_display_unit *du)
38{
39 drm_plane_cleanup(&du->primary);
40 drm_plane_cleanup(&du->cursor);
41
42 drm_connector_unregister(&du->connector);
43 drm_crtc_cleanup(&du->crtc);
44 drm_encoder_cleanup(&du->encoder);
45 drm_connector_cleanup(&du->connector);
46}
47
48/*
49 * Display Unit Cursor functions
50 */
51
52static int vmw_cursor_update_image(struct vmw_private *dev_priv,
53 u32 *image, u32 width, u32 height,
54 u32 hotspotX, u32 hotspotY)
55{
56 struct {
57 u32 cmd;
58 SVGAFifoCmdDefineAlphaCursor cursor;
59 } *cmd;
60 u32 image_size = width * height * 4;
61 u32 cmd_size = sizeof(*cmd) + image_size;
62
63 if (!image)
64 return -EINVAL;
65
66 cmd = vmw_fifo_reserve(dev_priv, cmd_size);
67 if (unlikely(cmd == NULL)) {
68 DRM_ERROR("Fifo reserve failed.\n");
69 return -ENOMEM;
70 }
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_fifo_commit_flush(dev_priv, cmd_size);
84
85 return 0;
86}
87
88static int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv,
89 struct vmw_dma_buffer *dmabuf,
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(&dmabuf->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(&dmabuf->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);
118err_unreserve:
119 ttm_bo_unreserve(&dmabuf->base);
120
121 return ret;
122}
123
124
125static void vmw_cursor_update_position(struct vmw_private *dev_priv,
126 bool show, int x, int y)
127{
128 u32 *fifo_mem = dev_priv->mmio_virt;
129 uint32_t count;
130
131 spin_lock(&dev_priv->cursor_lock);
132 vmw_mmio_write(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
133 vmw_mmio_write(x, fifo_mem + SVGA_FIFO_CURSOR_X);
134 vmw_mmio_write(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
135 count = vmw_mmio_read(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
136 vmw_mmio_write(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
137 spin_unlock(&dev_priv->cursor_lock);
138}
139
140
141void vmw_kms_cursor_snoop(struct vmw_surface *srf,
142 struct ttm_object_file *tfile,
143 struct ttm_buffer_object *bo,
144 SVGA3dCmdHeader *header)
145{
146 struct ttm_bo_kmap_obj map;
147 unsigned long kmap_offset;
148 unsigned long kmap_num;
149 SVGA3dCopyBox *box;
150 unsigned box_count;
151 void *virtual;
152 bool dummy;
153 struct vmw_dma_cmd {
154 SVGA3dCmdHeader header;
155 SVGA3dCmdSurfaceDMA dma;
156 } *cmd;
157 int i, ret;
158
159 cmd = container_of(header, struct vmw_dma_cmd, header);
160
161 /* No snooper installed */
162 if (!srf->snooper.image)
163 return;
164
165 if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
166 DRM_ERROR("face and mipmap for cursors should never != 0\n");
167 return;
168 }
169
170 if (cmd->header.size < 64) {
171 DRM_ERROR("at least one full copy box must be given\n");
172 return;
173 }
174
175 box = (SVGA3dCopyBox *)&cmd[1];
176 box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
177 sizeof(SVGA3dCopyBox);
178
179 if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
180 box->x != 0 || box->y != 0 || box->z != 0 ||
181 box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
182 box->d != 1 || box_count != 1) {
183 /* TODO handle none page aligned offsets */
184 /* TODO handle more dst & src != 0 */
185 /* TODO handle more then one copy */
186 DRM_ERROR("Cant snoop dma request for cursor!\n");
187 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
188 box->srcx, box->srcy, box->srcz,
189 box->x, box->y, box->z,
190 box->w, box->h, box->d, box_count,
191 cmd->dma.guest.ptr.offset);
192 return;
193 }
194
195 kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
196 kmap_num = (64*64*4) >> PAGE_SHIFT;
197
198 ret = ttm_bo_reserve(bo, true, false, NULL);
199 if (unlikely(ret != 0)) {
200 DRM_ERROR("reserve failed\n");
201 return;
202 }
203
204 ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
205 if (unlikely(ret != 0))
206 goto err_unreserve;
207
208 virtual = ttm_kmap_obj_virtual(&map, &dummy);
209
210 if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
211 memcpy(srf->snooper.image, virtual, 64*64*4);
212 } else {
213 /* Image is unsigned pointer. */
214 for (i = 0; i < box->h; i++)
215 memcpy(srf->snooper.image + i * 64,
216 virtual + i * cmd->dma.guest.pitch,
217 box->w * 4);
218 }
219
220 srf->snooper.age++;
221
222 ttm_bo_kunmap(&map);
223err_unreserve:
224 ttm_bo_unreserve(bo);
225}
226
227/**
228 * vmw_kms_legacy_hotspot_clear - Clear legacy hotspots
229 *
230 * @dev_priv: Pointer to the device private struct.
231 *
232 * Clears all legacy hotspots.
233 */
234void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv)
235{
236 struct drm_device *dev = dev_priv->dev;
237 struct vmw_display_unit *du;
238 struct drm_crtc *crtc;
239
240 drm_modeset_lock_all(dev);
241 drm_for_each_crtc(crtc, dev) {
242 du = vmw_crtc_to_du(crtc);
243
244 du->hotspot_x = 0;
245 du->hotspot_y = 0;
246 }
247 drm_modeset_unlock_all(dev);
248}
249
250void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
251{
252 struct drm_device *dev = dev_priv->dev;
253 struct vmw_display_unit *du;
254 struct drm_crtc *crtc;
255
256 mutex_lock(&dev->mode_config.mutex);
257
258 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
259 du = vmw_crtc_to_du(crtc);
260 if (!du->cursor_surface ||
261 du->cursor_age == du->cursor_surface->snooper.age)
262 continue;
263
264 du->cursor_age = du->cursor_surface->snooper.age;
265 vmw_cursor_update_image(dev_priv,
266 du->cursor_surface->snooper.image,
267 64, 64,
268 du->hotspot_x + du->core_hotspot_x,
269 du->hotspot_y + du->core_hotspot_y);
270 }
271
272 mutex_unlock(&dev->mode_config.mutex);
273}
274
275
276void vmw_du_cursor_plane_destroy(struct drm_plane *plane)
277{
278 vmw_cursor_update_position(plane->dev->dev_private, false, 0, 0);
279
280 drm_plane_cleanup(plane);
281}
282
283
284void vmw_du_primary_plane_destroy(struct drm_plane *plane)
285{
286 drm_plane_cleanup(plane);
287
288 /* Planes are static in our case so we don't free it */
289}
290
291
292/**
293 * vmw_du_vps_unpin_surf - unpins resource associated with a framebuffer surface
294 *
295 * @vps: plane state associated with the display surface
296 * @unreference: true if we also want to unreference the display.
297 */
298void vmw_du_plane_unpin_surf(struct vmw_plane_state *vps,
299 bool unreference)
300{
301 if (vps->surf) {
302 if (vps->pinned) {
303 vmw_resource_unpin(&vps->surf->res);
304 vps->pinned--;
305 }
306
307 if (unreference) {
308 if (vps->pinned)
309 DRM_ERROR("Surface still pinned\n");
310 vmw_surface_unreference(&vps->surf);
311 }
312 }
313}
314
315
316/**
317 * vmw_du_plane_cleanup_fb - Unpins the cursor
318 *
319 * @plane: display plane
320 * @old_state: Contains the FB to clean up
321 *
322 * Unpins the framebuffer surface
323 *
324 * Returns 0 on success
325 */
326void
327vmw_du_plane_cleanup_fb(struct drm_plane *plane,
328 struct drm_plane_state *old_state)
329{
330 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
331
332 vmw_du_plane_unpin_surf(vps, false);
333}
334
335
336/**
337 * vmw_du_cursor_plane_prepare_fb - Readies the cursor by referencing it
338 *
339 * @plane: display plane
340 * @new_state: info on the new plane state, including the FB
341 *
342 * Returns 0 on success
343 */
344int
345vmw_du_cursor_plane_prepare_fb(struct drm_plane *plane,
346 struct drm_plane_state *new_state)
347{
348 struct drm_framebuffer *fb = new_state->fb;
349 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
350
351
352 if (vps->surf)
353 vmw_surface_unreference(&vps->surf);
354
355 if (vps->dmabuf)
356 vmw_dmabuf_unreference(&vps->dmabuf);
357
358 if (fb) {
359 if (vmw_framebuffer_to_vfb(fb)->dmabuf) {
360 vps->dmabuf = vmw_framebuffer_to_vfbd(fb)->buffer;
361 vmw_dmabuf_reference(vps->dmabuf);
362 } else {
363 vps->surf = vmw_framebuffer_to_vfbs(fb)->surface;
364 vmw_surface_reference(vps->surf);
365 }
366 }
367
368 return 0;
369}
370
371
372void
373vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
374 struct drm_plane_state *old_state)
375{
376 struct drm_crtc *crtc = plane->state->crtc ?: old_state->crtc;
377 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
378 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
379 struct vmw_plane_state *vps = vmw_plane_state_to_vps(plane->state);
380 s32 hotspot_x, hotspot_y;
381 int ret = 0;
382
383
384 hotspot_x = du->hotspot_x;
385 hotspot_y = du->hotspot_y;
386
387 if (plane->fb) {
388 hotspot_x += plane->fb->hot_x;
389 hotspot_y += plane->fb->hot_y;
390 }
391
392 du->cursor_surface = vps->surf;
393 du->cursor_dmabuf = vps->dmabuf;
394
395 if (vps->surf) {
396 du->cursor_age = du->cursor_surface->snooper.age;
397
398 ret = vmw_cursor_update_image(dev_priv,
399 vps->surf->snooper.image,
400 64, 64, hotspot_x,
401 hotspot_y);
402 } else if (vps->dmabuf) {
403 ret = vmw_cursor_update_dmabuf(dev_priv, vps->dmabuf,
404 plane->state->crtc_w,
405 plane->state->crtc_h,
406 hotspot_x, hotspot_y);
407 } else {
408 vmw_cursor_update_position(dev_priv, false, 0, 0);
409 return;
410 }
411
412 if (!ret) {
413 du->cursor_x = plane->state->crtc_x + du->set_gui_x;
414 du->cursor_y = plane->state->crtc_y + du->set_gui_y;
415
416 vmw_cursor_update_position(dev_priv, true,
417 du->cursor_x + hotspot_x,
418 du->cursor_y + hotspot_y);
419
420 du->core_hotspot_x = hotspot_x - du->hotspot_x;
421 du->core_hotspot_y = hotspot_y - du->hotspot_y;
422 } else {
423 DRM_ERROR("Failed to update cursor image\n");
424 }
425}
426
427
428/**
429 * vmw_du_primary_plane_atomic_check - check if the new state is okay
430 *
431 * @plane: display plane
432 * @state: info on the new plane state, including the FB
433 *
434 * Check if the new state is settable given the current state. Other
435 * than what the atomic helper checks, we care about crtc fitting
436 * the FB and maintaining one active framebuffer.
437 *
438 * Returns 0 on success
439 */
440int vmw_du_primary_plane_atomic_check(struct drm_plane *plane,
441 struct drm_plane_state *state)
442{
443 struct drm_crtc_state *crtc_state = NULL;
444 struct drm_framebuffer *new_fb = state->fb;
445 int ret;
446
447 if (state->crtc)
448 crtc_state = drm_atomic_get_new_crtc_state(state->state, state->crtc);
449
450 ret = drm_atomic_helper_check_plane_state(state, crtc_state,
451 DRM_PLANE_HELPER_NO_SCALING,
452 DRM_PLANE_HELPER_NO_SCALING,
453 false, true);
454
455 if (!ret && new_fb) {
456 struct drm_crtc *crtc = state->crtc;
457 struct vmw_connector_state *vcs;
458 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
459 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
460 struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(new_fb);
461
462 vcs = vmw_connector_state_to_vcs(du->connector.state);
463
464 /* Only one active implicit framebuffer at a time. */
465 mutex_lock(&dev_priv->global_kms_state_mutex);
466 if (vcs->is_implicit && dev_priv->implicit_fb &&
467 !(dev_priv->num_implicit == 1 && du->active_implicit)
468 && dev_priv->implicit_fb != vfb) {
469 DRM_ERROR("Multiple implicit framebuffers "
470 "not supported.\n");
471 ret = -EINVAL;
472 }
473 mutex_unlock(&dev_priv->global_kms_state_mutex);
474 }
475
476
477 return ret;
478}
479
480
481/**
482 * vmw_du_cursor_plane_atomic_check - check if the new state is okay
483 *
484 * @plane: cursor plane
485 * @state: info on the new plane state
486 *
487 * This is a chance to fail if the new cursor state does not fit
488 * our requirements.
489 *
490 * Returns 0 on success
491 */
492int vmw_du_cursor_plane_atomic_check(struct drm_plane *plane,
493 struct drm_plane_state *new_state)
494{
495 int ret = 0;
496 struct vmw_surface *surface = NULL;
497 struct drm_framebuffer *fb = new_state->fb;
498
499 struct drm_rect src = drm_plane_state_src(new_state);
500 struct drm_rect dest = drm_plane_state_dest(new_state);
501
502 /* Turning off */
503 if (!fb)
504 return ret;
505
506 ret = drm_plane_helper_check_update(plane, new_state->crtc, fb,
507 &src, &dest,
508 DRM_MODE_ROTATE_0,
509 DRM_PLANE_HELPER_NO_SCALING,
510 DRM_PLANE_HELPER_NO_SCALING,
511 true, true, &new_state->visible);
512 if (!ret)
513 return ret;
514
515 /* A lot of the code assumes this */
516 if (new_state->crtc_w != 64 || new_state->crtc_h != 64) {
517 DRM_ERROR("Invalid cursor dimensions (%d, %d)\n",
518 new_state->crtc_w, new_state->crtc_h);
519 ret = -EINVAL;
520 }
521
522 if (!vmw_framebuffer_to_vfb(fb)->dmabuf)
523 surface = vmw_framebuffer_to_vfbs(fb)->surface;
524
525 if (surface && !surface->snooper.image) {
526 DRM_ERROR("surface not suitable for cursor\n");
527 ret = -EINVAL;
528 }
529
530 return ret;
531}
532
533
534int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
535 struct drm_crtc_state *new_state)
536{
537 struct vmw_display_unit *du = vmw_crtc_to_du(new_state->crtc);
538 int connector_mask = 1 << drm_connector_index(&du->connector);
539 bool has_primary = new_state->plane_mask &
540 BIT(drm_plane_index(crtc->primary));
541
542 /* We always want to have an active plane with an active CRTC */
543 if (has_primary != new_state->enable)
544 return -EINVAL;
545
546
547 if (new_state->connector_mask != connector_mask &&
548 new_state->connector_mask != 0) {
549 DRM_ERROR("Invalid connectors configuration\n");
550 return -EINVAL;
551 }
552
553 /*
554 * Our virtual device does not have a dot clock, so use the logical
555 * clock value as the dot clock.
556 */
557 if (new_state->mode.crtc_clock == 0)
558 new_state->adjusted_mode.crtc_clock = new_state->mode.clock;
559
560 return 0;
561}
562
563
564void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
565 struct drm_crtc_state *old_crtc_state)
566{
567}
568
569
570void vmw_du_crtc_atomic_flush(struct drm_crtc *crtc,
571 struct drm_crtc_state *old_crtc_state)
572{
573 struct drm_pending_vblank_event *event = crtc->state->event;
574
575 if (event) {
576 crtc->state->event = NULL;
577
578 spin_lock_irq(&crtc->dev->event_lock);
579 drm_crtc_send_vblank_event(crtc, event);
580 spin_unlock_irq(&crtc->dev->event_lock);
581 }
582}
583
584
585/**
586 * vmw_du_crtc_duplicate_state - duplicate crtc state
587 * @crtc: DRM crtc
588 *
589 * Allocates and returns a copy of the crtc state (both common and
590 * vmw-specific) for the specified crtc.
591 *
592 * Returns: The newly allocated crtc state, or NULL on failure.
593 */
594struct drm_crtc_state *
595vmw_du_crtc_duplicate_state(struct drm_crtc *crtc)
596{
597 struct drm_crtc_state *state;
598 struct vmw_crtc_state *vcs;
599
600 if (WARN_ON(!crtc->state))
601 return NULL;
602
603 vcs = kmemdup(crtc->state, sizeof(*vcs), GFP_KERNEL);
604
605 if (!vcs)
606 return NULL;
607
608 state = &vcs->base;
609
610 __drm_atomic_helper_crtc_duplicate_state(crtc, state);
611
612 return state;
613}
614
615
616/**
617 * vmw_du_crtc_reset - creates a blank vmw crtc state
618 * @crtc: DRM crtc
619 *
620 * Resets the atomic state for @crtc by freeing the state pointer (which
621 * might be NULL, e.g. at driver load time) and allocating a new empty state
622 * object.
623 */
624void vmw_du_crtc_reset(struct drm_crtc *crtc)
625{
626 struct vmw_crtc_state *vcs;
627
628
629 if (crtc->state) {
630 __drm_atomic_helper_crtc_destroy_state(crtc->state);
631
632 kfree(vmw_crtc_state_to_vcs(crtc->state));
633 }
634
635 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
636
637 if (!vcs) {
638 DRM_ERROR("Cannot allocate vmw_crtc_state\n");
639 return;
640 }
641
642 crtc->state = &vcs->base;
643 crtc->state->crtc = crtc;
644}
645
646
647/**
648 * vmw_du_crtc_destroy_state - destroy crtc state
649 * @crtc: DRM crtc
650 * @state: state object to destroy
651 *
652 * Destroys the crtc state (both common and vmw-specific) for the
653 * specified plane.
654 */
655void
656vmw_du_crtc_destroy_state(struct drm_crtc *crtc,
657 struct drm_crtc_state *state)
658{
659 drm_atomic_helper_crtc_destroy_state(crtc, state);
660}
661
662
663/**
664 * vmw_du_plane_duplicate_state - duplicate plane state
665 * @plane: drm plane
666 *
667 * Allocates and returns a copy of the plane state (both common and
668 * vmw-specific) for the specified plane.
669 *
670 * Returns: The newly allocated plane state, or NULL on failure.
671 */
672struct drm_plane_state *
673vmw_du_plane_duplicate_state(struct drm_plane *plane)
674{
675 struct drm_plane_state *state;
676 struct vmw_plane_state *vps;
677
678 vps = kmemdup(plane->state, sizeof(*vps), GFP_KERNEL);
679
680 if (!vps)
681 return NULL;
682
683 vps->pinned = 0;
684 vps->cpp = 0;
685
686 /* Each ref counted resource needs to be acquired again */
687 if (vps->surf)
688 (void) vmw_surface_reference(vps->surf);
689
690 if (vps->dmabuf)
691 (void) vmw_dmabuf_reference(vps->dmabuf);
692
693 state = &vps->base;
694
695 __drm_atomic_helper_plane_duplicate_state(plane, state);
696
697 return state;
698}
699
700
701/**
702 * vmw_du_plane_reset - creates a blank vmw plane state
703 * @plane: drm plane
704 *
705 * Resets the atomic state for @plane by freeing the state pointer (which might
706 * be NULL, e.g. at driver load time) and allocating a new empty state object.
707 */
708void vmw_du_plane_reset(struct drm_plane *plane)
709{
710 struct vmw_plane_state *vps;
711
712
713 if (plane->state)
714 vmw_du_plane_destroy_state(plane, plane->state);
715
716 vps = kzalloc(sizeof(*vps), GFP_KERNEL);
717
718 if (!vps) {
719 DRM_ERROR("Cannot allocate vmw_plane_state\n");
720 return;
721 }
722
723 plane->state = &vps->base;
724 plane->state->plane = plane;
725 plane->state->rotation = DRM_MODE_ROTATE_0;
726}
727
728
729/**
730 * vmw_du_plane_destroy_state - destroy plane state
731 * @plane: DRM plane
732 * @state: state object to destroy
733 *
734 * Destroys the plane state (both common and vmw-specific) for the
735 * specified plane.
736 */
737void
738vmw_du_plane_destroy_state(struct drm_plane *plane,
739 struct drm_plane_state *state)
740{
741 struct vmw_plane_state *vps = vmw_plane_state_to_vps(state);
742
743
744 /* Should have been freed by cleanup_fb */
745 if (vps->surf)
746 vmw_surface_unreference(&vps->surf);
747
748 if (vps->dmabuf)
749 vmw_dmabuf_unreference(&vps->dmabuf);
750
751 drm_atomic_helper_plane_destroy_state(plane, state);
752}
753
754
755/**
756 * vmw_du_connector_duplicate_state - duplicate connector state
757 * @connector: DRM connector
758 *
759 * Allocates and returns a copy of the connector state (both common and
760 * vmw-specific) for the specified connector.
761 *
762 * Returns: The newly allocated connector state, or NULL on failure.
763 */
764struct drm_connector_state *
765vmw_du_connector_duplicate_state(struct drm_connector *connector)
766{
767 struct drm_connector_state *state;
768 struct vmw_connector_state *vcs;
769
770 if (WARN_ON(!connector->state))
771 return NULL;
772
773 vcs = kmemdup(connector->state, sizeof(*vcs), GFP_KERNEL);
774
775 if (!vcs)
776 return NULL;
777
778 state = &vcs->base;
779
780 __drm_atomic_helper_connector_duplicate_state(connector, state);
781
782 return state;
783}
784
785
786/**
787 * vmw_du_connector_reset - creates a blank vmw connector state
788 * @connector: DRM connector
789 *
790 * Resets the atomic state for @connector by freeing the state pointer (which
791 * might be NULL, e.g. at driver load time) and allocating a new empty state
792 * object.
793 */
794void vmw_du_connector_reset(struct drm_connector *connector)
795{
796 struct vmw_connector_state *vcs;
797
798
799 if (connector->state) {
800 __drm_atomic_helper_connector_destroy_state(connector->state);
801
802 kfree(vmw_connector_state_to_vcs(connector->state));
803 }
804
805 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
806
807 if (!vcs) {
808 DRM_ERROR("Cannot allocate vmw_connector_state\n");
809 return;
810 }
811
812 __drm_atomic_helper_connector_reset(connector, &vcs->base);
813}
814
815
816/**
817 * vmw_du_connector_destroy_state - destroy connector state
818 * @connector: DRM connector
819 * @state: state object to destroy
820 *
821 * Destroys the connector state (both common and vmw-specific) for the
822 * specified plane.
823 */
824void
825vmw_du_connector_destroy_state(struct drm_connector *connector,
826 struct drm_connector_state *state)
827{
828 drm_atomic_helper_connector_destroy_state(connector, state);
829}
830/*
831 * Generic framebuffer code
832 */
833
834/*
835 * Surface framebuffer code
836 */
837
838static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
839{
840 struct vmw_framebuffer_surface *vfbs =
841 vmw_framebuffer_to_vfbs(framebuffer);
842
843 drm_framebuffer_cleanup(framebuffer);
844 vmw_surface_unreference(&vfbs->surface);
845 if (vfbs->base.user_obj)
846 ttm_base_object_unref(&vfbs->base.user_obj);
847
848 kfree(vfbs);
849}
850
851static int vmw_framebuffer_surface_dirty(struct drm_framebuffer *framebuffer,
852 struct drm_file *file_priv,
853 unsigned flags, unsigned color,
854 struct drm_clip_rect *clips,
855 unsigned num_clips)
856{
857 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
858 struct vmw_framebuffer_surface *vfbs =
859 vmw_framebuffer_to_vfbs(framebuffer);
860 struct drm_clip_rect norect;
861 int ret, inc = 1;
862
863 /* Legacy Display Unit does not support 3D */
864 if (dev_priv->active_display_unit == vmw_du_legacy)
865 return -EINVAL;
866
867 drm_modeset_lock_all(dev_priv->dev);
868
869 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
870 if (unlikely(ret != 0)) {
871 drm_modeset_unlock_all(dev_priv->dev);
872 return ret;
873 }
874
875 if (!num_clips) {
876 num_clips = 1;
877 clips = &norect;
878 norect.x1 = norect.y1 = 0;
879 norect.x2 = framebuffer->width;
880 norect.y2 = framebuffer->height;
881 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
882 num_clips /= 2;
883 inc = 2; /* skip source rects */
884 }
885
886 if (dev_priv->active_display_unit == vmw_du_screen_object)
887 ret = vmw_kms_sou_do_surface_dirty(dev_priv, &vfbs->base,
888 clips, NULL, NULL, 0, 0,
889 num_clips, inc, NULL, NULL);
890 else
891 ret = vmw_kms_stdu_surface_dirty(dev_priv, &vfbs->base,
892 clips, NULL, NULL, 0, 0,
893 num_clips, inc, NULL, NULL);
894
895 vmw_fifo_flush(dev_priv, false);
896 ttm_read_unlock(&dev_priv->reservation_sem);
897
898 drm_modeset_unlock_all(dev_priv->dev);
899
900 return 0;
901}
902
903/**
904 * vmw_kms_readback - Perform a readback from the screen system to
905 * a dma-buffer backed framebuffer.
906 *
907 * @dev_priv: Pointer to the device private structure.
908 * @file_priv: Pointer to a struct drm_file identifying the caller.
909 * Must be set to NULL if @user_fence_rep is NULL.
910 * @vfb: Pointer to the dma-buffer backed framebuffer.
911 * @user_fence_rep: User-space provided structure for fence information.
912 * Must be set to non-NULL if @file_priv is non-NULL.
913 * @vclips: Array of clip rects.
914 * @num_clips: Number of clip rects in @vclips.
915 *
916 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
917 * interrupted.
918 */
919int vmw_kms_readback(struct vmw_private *dev_priv,
920 struct drm_file *file_priv,
921 struct vmw_framebuffer *vfb,
922 struct drm_vmw_fence_rep __user *user_fence_rep,
923 struct drm_vmw_rect *vclips,
924 uint32_t num_clips)
925{
926 switch (dev_priv->active_display_unit) {
927 case vmw_du_screen_object:
928 return vmw_kms_sou_readback(dev_priv, file_priv, vfb,
929 user_fence_rep, vclips, num_clips,
930 NULL);
931 case vmw_du_screen_target:
932 return vmw_kms_stdu_dma(dev_priv, file_priv, vfb,
933 user_fence_rep, NULL, vclips, num_clips,
934 1, false, true, NULL);
935 default:
936 WARN_ONCE(true,
937 "Readback called with invalid display system.\n");
938}
939
940 return -ENOSYS;
941}
942
943
944static const struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
945 .destroy = vmw_framebuffer_surface_destroy,
946 .dirty = vmw_framebuffer_surface_dirty,
947};
948
949static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
950 struct vmw_surface *surface,
951 struct vmw_framebuffer **out,
952 const struct drm_mode_fb_cmd2
953 *mode_cmd,
954 bool is_dmabuf_proxy)
955
956{
957 struct drm_device *dev = dev_priv->dev;
958 struct vmw_framebuffer_surface *vfbs;
959 enum SVGA3dSurfaceFormat format;
960 int ret;
961 struct drm_format_name_buf format_name;
962
963 /* 3D is only supported on HWv8 and newer hosts */
964 if (dev_priv->active_display_unit == vmw_du_legacy)
965 return -ENOSYS;
966
967 /*
968 * Sanity checks.
969 */
970
971 /* Surface must be marked as a scanout. */
972 if (unlikely(!surface->scanout))
973 return -EINVAL;
974
975 if (unlikely(surface->mip_levels[0] != 1 ||
976 surface->num_sizes != 1 ||
977 surface->base_size.width < mode_cmd->width ||
978 surface->base_size.height < mode_cmd->height ||
979 surface->base_size.depth != 1)) {
980 DRM_ERROR("Incompatible surface dimensions "
981 "for requested mode.\n");
982 return -EINVAL;
983 }
984
985 switch (mode_cmd->pixel_format) {
986 case DRM_FORMAT_ARGB8888:
987 format = SVGA3D_A8R8G8B8;
988 break;
989 case DRM_FORMAT_XRGB8888:
990 format = SVGA3D_X8R8G8B8;
991 break;
992 case DRM_FORMAT_RGB565:
993 format = SVGA3D_R5G6B5;
994 break;
995 case DRM_FORMAT_XRGB1555:
996 format = SVGA3D_A1R5G5B5;
997 break;
998 default:
999 DRM_ERROR("Invalid pixel format: %s\n",
1000 drm_get_format_name(mode_cmd->pixel_format, &format_name));
1001 return -EINVAL;
1002 }
1003
1004 /*
1005 * For DX, surface format validation is done when surface->scanout
1006 * is set.
1007 */
1008 if (!dev_priv->has_dx && format != surface->format) {
1009 DRM_ERROR("Invalid surface format for requested mode.\n");
1010 return -EINVAL;
1011 }
1012
1013 vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
1014 if (!vfbs) {
1015 ret = -ENOMEM;
1016 goto out_err1;
1017 }
1018
1019 drm_helper_mode_fill_fb_struct(dev, &vfbs->base.base, mode_cmd);
1020 vfbs->surface = vmw_surface_reference(surface);
1021 vfbs->base.user_handle = mode_cmd->handles[0];
1022 vfbs->is_dmabuf_proxy = is_dmabuf_proxy;
1023
1024 *out = &vfbs->base;
1025
1026 ret = drm_framebuffer_init(dev, &vfbs->base.base,
1027 &vmw_framebuffer_surface_funcs);
1028 if (ret)
1029 goto out_err2;
1030
1031 return 0;
1032
1033out_err2:
1034 vmw_surface_unreference(&surface);
1035 kfree(vfbs);
1036out_err1:
1037 return ret;
1038}
1039
1040/*
1041 * Dmabuf framebuffer code
1042 */
1043
1044static void vmw_framebuffer_dmabuf_destroy(struct drm_framebuffer *framebuffer)
1045{
1046 struct vmw_framebuffer_dmabuf *vfbd =
1047 vmw_framebuffer_to_vfbd(framebuffer);
1048
1049 drm_framebuffer_cleanup(framebuffer);
1050 vmw_dmabuf_unreference(&vfbd->buffer);
1051 if (vfbd->base.user_obj)
1052 ttm_base_object_unref(&vfbd->base.user_obj);
1053
1054 kfree(vfbd);
1055}
1056
1057static int vmw_framebuffer_dmabuf_dirty(struct drm_framebuffer *framebuffer,
1058 struct drm_file *file_priv,
1059 unsigned flags, unsigned color,
1060 struct drm_clip_rect *clips,
1061 unsigned num_clips)
1062{
1063 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
1064 struct vmw_framebuffer_dmabuf *vfbd =
1065 vmw_framebuffer_to_vfbd(framebuffer);
1066 struct drm_clip_rect norect;
1067 int ret, increment = 1;
1068
1069 drm_modeset_lock_all(dev_priv->dev);
1070
1071 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
1072 if (unlikely(ret != 0)) {
1073 drm_modeset_unlock_all(dev_priv->dev);
1074 return ret;
1075 }
1076
1077 if (!num_clips) {
1078 num_clips = 1;
1079 clips = &norect;
1080 norect.x1 = norect.y1 = 0;
1081 norect.x2 = framebuffer->width;
1082 norect.y2 = framebuffer->height;
1083 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
1084 num_clips /= 2;
1085 increment = 2;
1086 }
1087
1088 switch (dev_priv->active_display_unit) {
1089 case vmw_du_screen_target:
1090 ret = vmw_kms_stdu_dma(dev_priv, NULL, &vfbd->base, NULL,
1091 clips, NULL, num_clips, increment,
1092 true, true, NULL);
1093 break;
1094 case vmw_du_screen_object:
1095 ret = vmw_kms_sou_do_dmabuf_dirty(dev_priv, &vfbd->base,
1096 clips, NULL, num_clips,
1097 increment, true, NULL, NULL);
1098 break;
1099 case vmw_du_legacy:
1100 ret = vmw_kms_ldu_do_dmabuf_dirty(dev_priv, &vfbd->base, 0, 0,
1101 clips, num_clips, increment);
1102 break;
1103 default:
1104 ret = -EINVAL;
1105 WARN_ONCE(true, "Dirty called with invalid display system.\n");
1106 break;
1107 }
1108
1109 vmw_fifo_flush(dev_priv, false);
1110 ttm_read_unlock(&dev_priv->reservation_sem);
1111
1112 drm_modeset_unlock_all(dev_priv->dev);
1113
1114 return ret;
1115}
1116
1117static const struct drm_framebuffer_funcs vmw_framebuffer_dmabuf_funcs = {
1118 .destroy = vmw_framebuffer_dmabuf_destroy,
1119 .dirty = vmw_framebuffer_dmabuf_dirty,
1120};
1121
1122/**
1123 * Pin the dmabuffer in a location suitable for access by the
1124 * display system.
1125 */
1126static int vmw_framebuffer_pin(struct vmw_framebuffer *vfb)
1127{
1128 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1129 struct vmw_dma_buffer *buf;
1130 struct ttm_placement *placement;
1131 int ret;
1132
1133 buf = vfb->dmabuf ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
1134 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
1135
1136 if (!buf)
1137 return 0;
1138
1139 switch (dev_priv->active_display_unit) {
1140 case vmw_du_legacy:
1141 vmw_overlay_pause_all(dev_priv);
1142 ret = vmw_dmabuf_pin_in_start_of_vram(dev_priv, buf, false);
1143 vmw_overlay_resume_all(dev_priv);
1144 break;
1145 case vmw_du_screen_object:
1146 case vmw_du_screen_target:
1147 if (vfb->dmabuf) {
1148 if (dev_priv->capabilities & SVGA_CAP_3D) {
1149 /*
1150 * Use surface DMA to get content to
1151 * sreen target surface.
1152 */
1153 placement = &vmw_vram_gmr_placement;
1154 } else {
1155 /* Use CPU blit. */
1156 placement = &vmw_sys_placement;
1157 }
1158 } else {
1159 /* Use surface / image update */
1160 placement = &vmw_mob_placement;
1161 }
1162
1163 return vmw_dmabuf_pin_in_placement(dev_priv, buf, placement,
1164 false);
1165 default:
1166 return -EINVAL;
1167 }
1168
1169 return ret;
1170}
1171
1172static int vmw_framebuffer_unpin(struct vmw_framebuffer *vfb)
1173{
1174 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1175 struct vmw_dma_buffer *buf;
1176
1177 buf = vfb->dmabuf ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
1178 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
1179
1180 if (WARN_ON(!buf))
1181 return 0;
1182
1183 return vmw_dmabuf_unpin(dev_priv, buf, false);
1184}
1185
1186/**
1187 * vmw_create_dmabuf_proxy - create a proxy surface for the DMA buf
1188 *
1189 * @dev: DRM device
1190 * @mode_cmd: parameters for the new surface
1191 * @dmabuf_mob: MOB backing the DMA buf
1192 * @srf_out: newly created surface
1193 *
1194 * When the content FB is a DMA buf, we create a surface as a proxy to the
1195 * same buffer. This way we can do a surface copy rather than a surface DMA.
1196 * This is a more efficient approach
1197 *
1198 * RETURNS:
1199 * 0 on success, error code otherwise
1200 */
1201static int vmw_create_dmabuf_proxy(struct drm_device *dev,
1202 const struct drm_mode_fb_cmd2 *mode_cmd,
1203 struct vmw_dma_buffer *dmabuf_mob,
1204 struct vmw_surface **srf_out)
1205{
1206 uint32_t format;
1207 struct drm_vmw_size content_base_size = {0};
1208 struct vmw_resource *res;
1209 unsigned int bytes_pp;
1210 struct drm_format_name_buf format_name;
1211 int ret;
1212
1213 switch (mode_cmd->pixel_format) {
1214 case DRM_FORMAT_ARGB8888:
1215 case DRM_FORMAT_XRGB8888:
1216 format = SVGA3D_X8R8G8B8;
1217 bytes_pp = 4;
1218 break;
1219
1220 case DRM_FORMAT_RGB565:
1221 case DRM_FORMAT_XRGB1555:
1222 format = SVGA3D_R5G6B5;
1223 bytes_pp = 2;
1224 break;
1225
1226 case 8:
1227 format = SVGA3D_P8;
1228 bytes_pp = 1;
1229 break;
1230
1231 default:
1232 DRM_ERROR("Invalid framebuffer format %s\n",
1233 drm_get_format_name(mode_cmd->pixel_format, &format_name));
1234 return -EINVAL;
1235 }
1236
1237 content_base_size.width = mode_cmd->pitches[0] / bytes_pp;
1238 content_base_size.height = mode_cmd->height;
1239 content_base_size.depth = 1;
1240
1241 ret = vmw_surface_gb_priv_define(dev,
1242 0, /* kernel visible only */
1243 0, /* flags */
1244 format,
1245 true, /* can be a scanout buffer */
1246 1, /* num of mip levels */
1247 0,
1248 0,
1249 content_base_size,
1250 srf_out);
1251 if (ret) {
1252 DRM_ERROR("Failed to allocate proxy content buffer\n");
1253 return ret;
1254 }
1255
1256 res = &(*srf_out)->res;
1257
1258 /* Reserve and switch the backing mob. */
1259 mutex_lock(&res->dev_priv->cmdbuf_mutex);
1260 (void) vmw_resource_reserve(res, false, true);
1261 vmw_dmabuf_unreference(&res->backup);
1262 res->backup = vmw_dmabuf_reference(dmabuf_mob);
1263 res->backup_offset = 0;
1264 vmw_resource_unreserve(res, false, NULL, 0);
1265 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
1266
1267 return 0;
1268}
1269
1270
1271
1272static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
1273 struct vmw_dma_buffer *dmabuf,
1274 struct vmw_framebuffer **out,
1275 const struct drm_mode_fb_cmd2
1276 *mode_cmd)
1277
1278{
1279 struct drm_device *dev = dev_priv->dev;
1280 struct vmw_framebuffer_dmabuf *vfbd;
1281 unsigned int requested_size;
1282 struct drm_format_name_buf format_name;
1283 int ret;
1284
1285 requested_size = mode_cmd->height * mode_cmd->pitches[0];
1286 if (unlikely(requested_size > dmabuf->base.num_pages * PAGE_SIZE)) {
1287 DRM_ERROR("Screen buffer object size is too small "
1288 "for requested mode.\n");
1289 return -EINVAL;
1290 }
1291
1292 /* Limited framebuffer color depth support for screen objects */
1293 if (dev_priv->active_display_unit == vmw_du_screen_object) {
1294 switch (mode_cmd->pixel_format) {
1295 case DRM_FORMAT_XRGB8888:
1296 case DRM_FORMAT_ARGB8888:
1297 break;
1298 case DRM_FORMAT_XRGB1555:
1299 case DRM_FORMAT_RGB565:
1300 break;
1301 default:
1302 DRM_ERROR("Invalid pixel format: %s\n",
1303 drm_get_format_name(mode_cmd->pixel_format, &format_name));
1304 return -EINVAL;
1305 }
1306 }
1307
1308 vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
1309 if (!vfbd) {
1310 ret = -ENOMEM;
1311 goto out_err1;
1312 }
1313
1314 drm_helper_mode_fill_fb_struct(dev, &vfbd->base.base, mode_cmd);
1315 vfbd->base.dmabuf = true;
1316 vfbd->buffer = vmw_dmabuf_reference(dmabuf);
1317 vfbd->base.user_handle = mode_cmd->handles[0];
1318 *out = &vfbd->base;
1319
1320 ret = drm_framebuffer_init(dev, &vfbd->base.base,
1321 &vmw_framebuffer_dmabuf_funcs);
1322 if (ret)
1323 goto out_err2;
1324
1325 return 0;
1326
1327out_err2:
1328 vmw_dmabuf_unreference(&dmabuf);
1329 kfree(vfbd);
1330out_err1:
1331 return ret;
1332}
1333
1334
1335/**
1336 * vmw_kms_srf_ok - check if a surface can be created
1337 *
1338 * @width: requested width
1339 * @height: requested height
1340 *
1341 * Surfaces need to be less than texture size
1342 */
1343static bool
1344vmw_kms_srf_ok(struct vmw_private *dev_priv, uint32_t width, uint32_t height)
1345{
1346 if (width > dev_priv->texture_max_width ||
1347 height > dev_priv->texture_max_height)
1348 return false;
1349
1350 return true;
1351}
1352
1353/**
1354 * vmw_kms_new_framebuffer - Create a new framebuffer.
1355 *
1356 * @dev_priv: Pointer to device private struct.
1357 * @dmabuf: Pointer to dma buffer to wrap the kms framebuffer around.
1358 * Either @dmabuf or @surface must be NULL.
1359 * @surface: Pointer to a surface to wrap the kms framebuffer around.
1360 * Either @dmabuf or @surface must be NULL.
1361 * @only_2d: No presents will occur to this dma buffer based framebuffer. This
1362 * Helps the code to do some important optimizations.
1363 * @mode_cmd: Frame-buffer metadata.
1364 */
1365struct vmw_framebuffer *
1366vmw_kms_new_framebuffer(struct vmw_private *dev_priv,
1367 struct vmw_dma_buffer *dmabuf,
1368 struct vmw_surface *surface,
1369 bool only_2d,
1370 const struct drm_mode_fb_cmd2 *mode_cmd)
1371{
1372 struct vmw_framebuffer *vfb = NULL;
1373 bool is_dmabuf_proxy = false;
1374 int ret;
1375
1376 /*
1377 * We cannot use the SurfaceDMA command in an non-accelerated VM,
1378 * therefore, wrap the DMA buf in a surface so we can use the
1379 * SurfaceCopy command.
1380 */
1381 if (vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height) &&
1382 dmabuf && only_2d &&
1383 mode_cmd->width > 64 && /* Don't create a proxy for cursor */
1384 dev_priv->active_display_unit == vmw_du_screen_target) {
1385 ret = vmw_create_dmabuf_proxy(dev_priv->dev, mode_cmd,
1386 dmabuf, &surface);
1387 if (ret)
1388 return ERR_PTR(ret);
1389
1390 is_dmabuf_proxy = true;
1391 }
1392
1393 /* Create the new framebuffer depending one what we have */
1394 if (surface) {
1395 ret = vmw_kms_new_framebuffer_surface(dev_priv, surface, &vfb,
1396 mode_cmd,
1397 is_dmabuf_proxy);
1398
1399 /*
1400 * vmw_create_dmabuf_proxy() adds a reference that is no longer
1401 * needed
1402 */
1403 if (is_dmabuf_proxy)
1404 vmw_surface_unreference(&surface);
1405 } else if (dmabuf) {
1406 ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, dmabuf, &vfb,
1407 mode_cmd);
1408 } else {
1409 BUG();
1410 }
1411
1412 if (ret)
1413 return ERR_PTR(ret);
1414
1415 vfb->pin = vmw_framebuffer_pin;
1416 vfb->unpin = vmw_framebuffer_unpin;
1417
1418 return vfb;
1419}
1420
1421/*
1422 * Generic Kernel modesetting functions
1423 */
1424
1425static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
1426 struct drm_file *file_priv,
1427 const struct drm_mode_fb_cmd2 *mode_cmd)
1428{
1429 struct vmw_private *dev_priv = vmw_priv(dev);
1430 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1431 struct vmw_framebuffer *vfb = NULL;
1432 struct vmw_surface *surface = NULL;
1433 struct vmw_dma_buffer *bo = NULL;
1434 struct ttm_base_object *user_obj;
1435 int ret;
1436
1437 /**
1438 * This code should be conditioned on Screen Objects not being used.
1439 * If screen objects are used, we can allocate a GMR to hold the
1440 * requested framebuffer.
1441 */
1442
1443 if (!vmw_kms_validate_mode_vram(dev_priv,
1444 mode_cmd->pitches[0],
1445 mode_cmd->height)) {
1446 DRM_ERROR("Requested mode exceed bounding box limit.\n");
1447 return ERR_PTR(-ENOMEM);
1448 }
1449
1450 /*
1451 * Take a reference on the user object of the resource
1452 * backing the kms fb. This ensures that user-space handle
1453 * lookups on that resource will always work as long as
1454 * it's registered with a kms framebuffer. This is important,
1455 * since vmw_execbuf_process identifies resources in the
1456 * command stream using user-space handles.
1457 */
1458
1459 user_obj = ttm_base_object_lookup(tfile, mode_cmd->handles[0]);
1460 if (unlikely(user_obj == NULL)) {
1461 DRM_ERROR("Could not locate requested kms frame buffer.\n");
1462 return ERR_PTR(-ENOENT);
1463 }
1464
1465 /**
1466 * End conditioned code.
1467 */
1468
1469 /* returns either a dmabuf or surface */
1470 ret = vmw_user_lookup_handle(dev_priv, tfile,
1471 mode_cmd->handles[0],
1472 &surface, &bo);
1473 if (ret)
1474 goto err_out;
1475
1476
1477 if (!bo &&
1478 !vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height)) {
1479 DRM_ERROR("Surface size cannot exceed %dx%d",
1480 dev_priv->texture_max_width,
1481 dev_priv->texture_max_height);
1482 goto err_out;
1483 }
1484
1485
1486 vfb = vmw_kms_new_framebuffer(dev_priv, bo, surface,
1487 !(dev_priv->capabilities & SVGA_CAP_3D),
1488 mode_cmd);
1489 if (IS_ERR(vfb)) {
1490 ret = PTR_ERR(vfb);
1491 goto err_out;
1492 }
1493
1494err_out:
1495 /* vmw_user_lookup_handle takes one ref so does new_fb */
1496 if (bo)
1497 vmw_dmabuf_unreference(&bo);
1498 if (surface)
1499 vmw_surface_unreference(&surface);
1500
1501 if (ret) {
1502 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1503 ttm_base_object_unref(&user_obj);
1504 return ERR_PTR(ret);
1505 } else
1506 vfb->user_obj = user_obj;
1507
1508 return &vfb->base;
1509}
1510
1511
1512
1513/**
1514 * vmw_kms_atomic_check_modeset- validate state object for modeset changes
1515 *
1516 * @dev: DRM device
1517 * @state: the driver state object
1518 *
1519 * This is a simple wrapper around drm_atomic_helper_check_modeset() for
1520 * us to assign a value to mode->crtc_clock so that
1521 * drm_calc_timestamping_constants() won't throw an error message
1522 *
1523 * RETURNS
1524 * Zero for success or -errno
1525 */
1526static int
1527vmw_kms_atomic_check_modeset(struct drm_device *dev,
1528 struct drm_atomic_state *state)
1529{
1530 struct drm_crtc_state *crtc_state;
1531 struct drm_crtc *crtc;
1532 struct vmw_private *dev_priv = vmw_priv(dev);
1533 int i;
1534
1535 for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
1536 unsigned long requested_bb_mem = 0;
1537
1538 if (dev_priv->active_display_unit == vmw_du_screen_target) {
1539 if (crtc->primary->fb) {
1540 int cpp = crtc->primary->fb->pitches[0] /
1541 crtc->primary->fb->width;
1542
1543 requested_bb_mem += crtc->mode.hdisplay * cpp *
1544 crtc->mode.vdisplay;
1545 }
1546
1547 if (requested_bb_mem > dev_priv->prim_bb_mem)
1548 return -EINVAL;
1549 }
1550 }
1551
1552 return drm_atomic_helper_check(dev, state);
1553}
1554
1555static const struct drm_mode_config_funcs vmw_kms_funcs = {
1556 .fb_create = vmw_kms_fb_create,
1557 .atomic_check = vmw_kms_atomic_check_modeset,
1558 .atomic_commit = drm_atomic_helper_commit,
1559};
1560
1561static int vmw_kms_generic_present(struct vmw_private *dev_priv,
1562 struct drm_file *file_priv,
1563 struct vmw_framebuffer *vfb,
1564 struct vmw_surface *surface,
1565 uint32_t sid,
1566 int32_t destX, int32_t destY,
1567 struct drm_vmw_rect *clips,
1568 uint32_t num_clips)
1569{
1570 return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips,
1571 &surface->res, destX, destY,
1572 num_clips, 1, NULL, NULL);
1573}
1574
1575
1576int vmw_kms_present(struct vmw_private *dev_priv,
1577 struct drm_file *file_priv,
1578 struct vmw_framebuffer *vfb,
1579 struct vmw_surface *surface,
1580 uint32_t sid,
1581 int32_t destX, int32_t destY,
1582 struct drm_vmw_rect *clips,
1583 uint32_t num_clips)
1584{
1585 int ret;
1586
1587 switch (dev_priv->active_display_unit) {
1588 case vmw_du_screen_target:
1589 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips,
1590 &surface->res, destX, destY,
1591 num_clips, 1, NULL, NULL);
1592 break;
1593 case vmw_du_screen_object:
1594 ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface,
1595 sid, destX, destY, clips,
1596 num_clips);
1597 break;
1598 default:
1599 WARN_ONCE(true,
1600 "Present called with invalid display system.\n");
1601 ret = -ENOSYS;
1602 break;
1603 }
1604 if (ret)
1605 return ret;
1606
1607 vmw_fifo_flush(dev_priv, false);
1608
1609 return 0;
1610}
1611
1612static void
1613vmw_kms_create_hotplug_mode_update_property(struct vmw_private *dev_priv)
1614{
1615 if (dev_priv->hotplug_mode_update_property)
1616 return;
1617
1618 dev_priv->hotplug_mode_update_property =
1619 drm_property_create_range(dev_priv->dev,
1620 DRM_MODE_PROP_IMMUTABLE,
1621 "hotplug_mode_update", 0, 1);
1622
1623 if (!dev_priv->hotplug_mode_update_property)
1624 return;
1625
1626}
1627
1628int vmw_kms_init(struct vmw_private *dev_priv)
1629{
1630 struct drm_device *dev = dev_priv->dev;
1631 int ret;
1632
1633 drm_mode_config_init(dev);
1634 dev->mode_config.funcs = &vmw_kms_funcs;
1635 dev->mode_config.min_width = 1;
1636 dev->mode_config.min_height = 1;
1637 dev->mode_config.max_width = dev_priv->texture_max_width;
1638 dev->mode_config.max_height = dev_priv->texture_max_height;
1639
1640 drm_mode_create_suggested_offset_properties(dev);
1641 vmw_kms_create_hotplug_mode_update_property(dev_priv);
1642
1643 ret = vmw_kms_stdu_init_display(dev_priv);
1644 if (ret) {
1645 ret = vmw_kms_sou_init_display(dev_priv);
1646 if (ret) /* Fallback */
1647 ret = vmw_kms_ldu_init_display(dev_priv);
1648 }
1649
1650 return ret;
1651}
1652
1653int vmw_kms_close(struct vmw_private *dev_priv)
1654{
1655 int ret = 0;
1656
1657 /*
1658 * Docs says we should take the lock before calling this function
1659 * but since it destroys encoders and our destructor calls
1660 * drm_encoder_cleanup which takes the lock we deadlock.
1661 */
1662 drm_mode_config_cleanup(dev_priv->dev);
1663 if (dev_priv->active_display_unit == vmw_du_legacy)
1664 ret = vmw_kms_ldu_close_display(dev_priv);
1665
1666 return ret;
1667}
1668
1669int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1670 struct drm_file *file_priv)
1671{
1672 struct drm_vmw_cursor_bypass_arg *arg = data;
1673 struct vmw_display_unit *du;
1674 struct drm_crtc *crtc;
1675 int ret = 0;
1676
1677
1678 mutex_lock(&dev->mode_config.mutex);
1679 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1680
1681 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1682 du = vmw_crtc_to_du(crtc);
1683 du->hotspot_x = arg->xhot;
1684 du->hotspot_y = arg->yhot;
1685 }
1686
1687 mutex_unlock(&dev->mode_config.mutex);
1688 return 0;
1689 }
1690
1691 crtc = drm_crtc_find(dev, file_priv, arg->crtc_id);
1692 if (!crtc) {
1693 ret = -ENOENT;
1694 goto out;
1695 }
1696
1697 du = vmw_crtc_to_du(crtc);
1698
1699 du->hotspot_x = arg->xhot;
1700 du->hotspot_y = arg->yhot;
1701
1702out:
1703 mutex_unlock(&dev->mode_config.mutex);
1704
1705 return ret;
1706}
1707
1708int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1709 unsigned width, unsigned height, unsigned pitch,
1710 unsigned bpp, unsigned depth)
1711{
1712 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1713 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1714 else if (vmw_fifo_have_pitchlock(vmw_priv))
1715 vmw_mmio_write(pitch, vmw_priv->mmio_virt +
1716 SVGA_FIFO_PITCHLOCK);
1717 vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1718 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1719 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1720
1721 if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1722 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1723 depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1724 return -EINVAL;
1725 }
1726
1727 return 0;
1728}
1729
1730int vmw_kms_save_vga(struct vmw_private *vmw_priv)
1731{
1732 struct vmw_vga_topology_state *save;
1733 uint32_t i;
1734
1735 vmw_priv->vga_width = vmw_read(vmw_priv, SVGA_REG_WIDTH);
1736 vmw_priv->vga_height = vmw_read(vmw_priv, SVGA_REG_HEIGHT);
1737 vmw_priv->vga_bpp = vmw_read(vmw_priv, SVGA_REG_BITS_PER_PIXEL);
1738 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1739 vmw_priv->vga_pitchlock =
1740 vmw_read(vmw_priv, SVGA_REG_PITCHLOCK);
1741 else if (vmw_fifo_have_pitchlock(vmw_priv))
1742 vmw_priv->vga_pitchlock = vmw_mmio_read(vmw_priv->mmio_virt +
1743 SVGA_FIFO_PITCHLOCK);
1744
1745 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1746 return 0;
1747
1748 vmw_priv->num_displays = vmw_read(vmw_priv,
1749 SVGA_REG_NUM_GUEST_DISPLAYS);
1750
1751 if (vmw_priv->num_displays == 0)
1752 vmw_priv->num_displays = 1;
1753
1754 for (i = 0; i < vmw_priv->num_displays; ++i) {
1755 save = &vmw_priv->vga_save[i];
1756 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1757 save->primary = vmw_read(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY);
1758 save->pos_x = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_X);
1759 save->pos_y = vmw_read(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y);
1760 save->width = vmw_read(vmw_priv, SVGA_REG_DISPLAY_WIDTH);
1761 save->height = vmw_read(vmw_priv, SVGA_REG_DISPLAY_HEIGHT);
1762 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1763 if (i == 0 && vmw_priv->num_displays == 1 &&
1764 save->width == 0 && save->height == 0) {
1765
1766 /*
1767 * It should be fairly safe to assume that these
1768 * values are uninitialized.
1769 */
1770
1771 save->width = vmw_priv->vga_width - save->pos_x;
1772 save->height = vmw_priv->vga_height - save->pos_y;
1773 }
1774 }
1775
1776 return 0;
1777}
1778
1779int vmw_kms_restore_vga(struct vmw_private *vmw_priv)
1780{
1781 struct vmw_vga_topology_state *save;
1782 uint32_t i;
1783
1784 vmw_write(vmw_priv, SVGA_REG_WIDTH, vmw_priv->vga_width);
1785 vmw_write(vmw_priv, SVGA_REG_HEIGHT, vmw_priv->vga_height);
1786 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, vmw_priv->vga_bpp);
1787 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1788 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK,
1789 vmw_priv->vga_pitchlock);
1790 else if (vmw_fifo_have_pitchlock(vmw_priv))
1791 vmw_mmio_write(vmw_priv->vga_pitchlock,
1792 vmw_priv->mmio_virt + SVGA_FIFO_PITCHLOCK);
1793
1794 if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY))
1795 return 0;
1796
1797 for (i = 0; i < vmw_priv->num_displays; ++i) {
1798 save = &vmw_priv->vga_save[i];
1799 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, i);
1800 vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, save->primary);
1801 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, save->pos_x);
1802 vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, save->pos_y);
1803 vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, save->width);
1804 vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, save->height);
1805 vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID);
1806 }
1807
1808 return 0;
1809}
1810
1811bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1812 uint32_t pitch,
1813 uint32_t height)
1814{
1815 return ((u64) pitch * (u64) height) < (u64)
1816 ((dev_priv->active_display_unit == vmw_du_screen_target) ?
1817 dev_priv->prim_bb_mem : dev_priv->vram_size);
1818}
1819
1820
1821/**
1822 * Function called by DRM code called with vbl_lock held.
1823 */
1824u32 vmw_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
1825{
1826 return 0;
1827}
1828
1829/**
1830 * Function called by DRM code called with vbl_lock held.
1831 */
1832int vmw_enable_vblank(struct drm_device *dev, unsigned int pipe)
1833{
1834 return -EINVAL;
1835}
1836
1837/**
1838 * Function called by DRM code called with vbl_lock held.
1839 */
1840void vmw_disable_vblank(struct drm_device *dev, unsigned int pipe)
1841{
1842}
1843
1844
1845/*
1846 * Small shared kms functions.
1847 */
1848
1849static int vmw_du_update_layout(struct vmw_private *dev_priv, unsigned num,
1850 struct drm_vmw_rect *rects)
1851{
1852 struct drm_device *dev = dev_priv->dev;
1853 struct vmw_display_unit *du;
1854 struct drm_connector *con;
1855
1856 mutex_lock(&dev->mode_config.mutex);
1857
1858#if 0
1859 {
1860 unsigned int i;
1861
1862 DRM_INFO("%s: new layout ", __func__);
1863 for (i = 0; i < num; i++)
1864 DRM_INFO("(%i, %i %ux%u) ", rects[i].x, rects[i].y,
1865 rects[i].w, rects[i].h);
1866 DRM_INFO("\n");
1867 }
1868#endif
1869
1870 list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1871 du = vmw_connector_to_du(con);
1872 if (num > du->unit) {
1873 du->pref_width = rects[du->unit].w;
1874 du->pref_height = rects[du->unit].h;
1875 du->pref_active = true;
1876 du->gui_x = rects[du->unit].x;
1877 du->gui_y = rects[du->unit].y;
1878 drm_object_property_set_value
1879 (&con->base, dev->mode_config.suggested_x_property,
1880 du->gui_x);
1881 drm_object_property_set_value
1882 (&con->base, dev->mode_config.suggested_y_property,
1883 du->gui_y);
1884 } else {
1885 du->pref_width = 800;
1886 du->pref_height = 600;
1887 du->pref_active = false;
1888 drm_object_property_set_value
1889 (&con->base, dev->mode_config.suggested_x_property,
1890 0);
1891 drm_object_property_set_value
1892 (&con->base, dev->mode_config.suggested_y_property,
1893 0);
1894 }
1895 con->status = vmw_du_connector_detect(con, true);
1896 }
1897
1898 mutex_unlock(&dev->mode_config.mutex);
1899 drm_sysfs_hotplug_event(dev);
1900
1901 return 0;
1902}
1903
1904int vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
1905 u16 *r, u16 *g, u16 *b,
1906 uint32_t size,
1907 struct drm_modeset_acquire_ctx *ctx)
1908{
1909 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
1910 int i;
1911
1912 for (i = 0; i < size; i++) {
1913 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
1914 r[i], g[i], b[i]);
1915 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
1916 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
1917 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
1918 }
1919
1920 return 0;
1921}
1922
1923int vmw_du_connector_dpms(struct drm_connector *connector, int mode)
1924{
1925 return 0;
1926}
1927
1928enum drm_connector_status
1929vmw_du_connector_detect(struct drm_connector *connector, bool force)
1930{
1931 uint32_t num_displays;
1932 struct drm_device *dev = connector->dev;
1933 struct vmw_private *dev_priv = vmw_priv(dev);
1934 struct vmw_display_unit *du = vmw_connector_to_du(connector);
1935
1936 num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
1937
1938 return ((vmw_connector_to_du(connector)->unit < num_displays &&
1939 du->pref_active) ?
1940 connector_status_connected : connector_status_disconnected);
1941}
1942
1943static struct drm_display_mode vmw_kms_connector_builtin[] = {
1944 /* 640x480@60Hz */
1945 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
1946 752, 800, 0, 480, 489, 492, 525, 0,
1947 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1948 /* 800x600@60Hz */
1949 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
1950 968, 1056, 0, 600, 601, 605, 628, 0,
1951 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1952 /* 1024x768@60Hz */
1953 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
1954 1184, 1344, 0, 768, 771, 777, 806, 0,
1955 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
1956 /* 1152x864@75Hz */
1957 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
1958 1344, 1600, 0, 864, 865, 868, 900, 0,
1959 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1960 /* 1280x768@60Hz */
1961 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
1962 1472, 1664, 0, 768, 771, 778, 798, 0,
1963 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1964 /* 1280x800@60Hz */
1965 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
1966 1480, 1680, 0, 800, 803, 809, 831, 0,
1967 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
1968 /* 1280x960@60Hz */
1969 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
1970 1488, 1800, 0, 960, 961, 964, 1000, 0,
1971 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1972 /* 1280x1024@60Hz */
1973 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
1974 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
1975 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1976 /* 1360x768@60Hz */
1977 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
1978 1536, 1792, 0, 768, 771, 777, 795, 0,
1979 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1980 /* 1440x1050@60Hz */
1981 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
1982 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
1983 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1984 /* 1440x900@60Hz */
1985 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
1986 1672, 1904, 0, 900, 903, 909, 934, 0,
1987 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1988 /* 1600x1200@60Hz */
1989 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
1990 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
1991 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
1992 /* 1680x1050@60Hz */
1993 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
1994 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
1995 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
1996 /* 1792x1344@60Hz */
1997 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
1998 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
1999 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2000 /* 1853x1392@60Hz */
2001 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
2002 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
2003 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2004 /* 1920x1200@60Hz */
2005 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
2006 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
2007 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2008 /* 1920x1440@60Hz */
2009 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
2010 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
2011 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2012 /* 2560x1600@60Hz */
2013 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
2014 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
2015 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2016 /* Terminate */
2017 { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
2018};
2019
2020/**
2021 * vmw_guess_mode_timing - Provide fake timings for a
2022 * 60Hz vrefresh mode.
2023 *
2024 * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
2025 * members filled in.
2026 */
2027void vmw_guess_mode_timing(struct drm_display_mode *mode)
2028{
2029 mode->hsync_start = mode->hdisplay + 50;
2030 mode->hsync_end = mode->hsync_start + 50;
2031 mode->htotal = mode->hsync_end + 50;
2032
2033 mode->vsync_start = mode->vdisplay + 50;
2034 mode->vsync_end = mode->vsync_start + 50;
2035 mode->vtotal = mode->vsync_end + 50;
2036
2037 mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
2038 mode->vrefresh = drm_mode_vrefresh(mode);
2039}
2040
2041
2042int vmw_du_connector_fill_modes(struct drm_connector *connector,
2043 uint32_t max_width, uint32_t max_height)
2044{
2045 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2046 struct drm_device *dev = connector->dev;
2047 struct vmw_private *dev_priv = vmw_priv(dev);
2048 struct drm_display_mode *mode = NULL;
2049 struct drm_display_mode *bmode;
2050 struct drm_display_mode prefmode = { DRM_MODE("preferred",
2051 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
2052 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2053 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
2054 };
2055 int i;
2056 u32 assumed_bpp = 4;
2057
2058 if (dev_priv->assume_16bpp)
2059 assumed_bpp = 2;
2060
2061 if (dev_priv->active_display_unit == vmw_du_screen_target) {
2062 max_width = min(max_width, dev_priv->stdu_max_width);
2063 max_width = min(max_width, dev_priv->texture_max_width);
2064
2065 max_height = min(max_height, dev_priv->stdu_max_height);
2066 max_height = min(max_height, dev_priv->texture_max_height);
2067 }
2068
2069 /* Add preferred mode */
2070 mode = drm_mode_duplicate(dev, &prefmode);
2071 if (!mode)
2072 return 0;
2073 mode->hdisplay = du->pref_width;
2074 mode->vdisplay = du->pref_height;
2075 vmw_guess_mode_timing(mode);
2076
2077 if (vmw_kms_validate_mode_vram(dev_priv,
2078 mode->hdisplay * assumed_bpp,
2079 mode->vdisplay)) {
2080 drm_mode_probed_add(connector, mode);
2081 } else {
2082 drm_mode_destroy(dev, mode);
2083 mode = NULL;
2084 }
2085
2086 if (du->pref_mode) {
2087 list_del_init(&du->pref_mode->head);
2088 drm_mode_destroy(dev, du->pref_mode);
2089 }
2090
2091 /* mode might be null here, this is intended */
2092 du->pref_mode = mode;
2093
2094 for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
2095 bmode = &vmw_kms_connector_builtin[i];
2096 if (bmode->hdisplay > max_width ||
2097 bmode->vdisplay > max_height)
2098 continue;
2099
2100 if (!vmw_kms_validate_mode_vram(dev_priv,
2101 bmode->hdisplay * assumed_bpp,
2102 bmode->vdisplay))
2103 continue;
2104
2105 mode = drm_mode_duplicate(dev, bmode);
2106 if (!mode)
2107 return 0;
2108 mode->vrefresh = drm_mode_vrefresh(mode);
2109
2110 drm_mode_probed_add(connector, mode);
2111 }
2112
2113 drm_mode_connector_list_update(connector);
2114 /* Move the prefered mode first, help apps pick the right mode. */
2115 drm_mode_sort(&connector->modes);
2116
2117 return 1;
2118}
2119
2120int vmw_du_connector_set_property(struct drm_connector *connector,
2121 struct drm_property *property,
2122 uint64_t val)
2123{
2124 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2125 struct vmw_private *dev_priv = vmw_priv(connector->dev);
2126
2127 if (property == dev_priv->implicit_placement_property)
2128 du->is_implicit = val;
2129
2130 return 0;
2131}
2132
2133
2134
2135/**
2136 * vmw_du_connector_atomic_set_property - Atomic version of get property
2137 *
2138 * @crtc - crtc the property is associated with
2139 *
2140 * Returns:
2141 * Zero on success, negative errno on failure.
2142 */
2143int
2144vmw_du_connector_atomic_set_property(struct drm_connector *connector,
2145 struct drm_connector_state *state,
2146 struct drm_property *property,
2147 uint64_t val)
2148{
2149 struct vmw_private *dev_priv = vmw_priv(connector->dev);
2150 struct vmw_connector_state *vcs = vmw_connector_state_to_vcs(state);
2151 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2152
2153
2154 if (property == dev_priv->implicit_placement_property) {
2155 vcs->is_implicit = val;
2156
2157 /*
2158 * We should really be doing a drm_atomic_commit() to
2159 * commit the new state, but since this doesn't cause
2160 * an immedate state change, this is probably ok
2161 */
2162 du->is_implicit = vcs->is_implicit;
2163 } else {
2164 return -EINVAL;
2165 }
2166
2167 return 0;
2168}
2169
2170
2171/**
2172 * vmw_du_connector_atomic_get_property - Atomic version of get property
2173 *
2174 * @connector - connector the property is associated with
2175 *
2176 * Returns:
2177 * Zero on success, negative errno on failure.
2178 */
2179int
2180vmw_du_connector_atomic_get_property(struct drm_connector *connector,
2181 const struct drm_connector_state *state,
2182 struct drm_property *property,
2183 uint64_t *val)
2184{
2185 struct vmw_private *dev_priv = vmw_priv(connector->dev);
2186 struct vmw_connector_state *vcs = vmw_connector_state_to_vcs(state);
2187
2188 if (property == dev_priv->implicit_placement_property)
2189 *val = vcs->is_implicit;
2190 else {
2191 DRM_ERROR("Invalid Property %s\n", property->name);
2192 return -EINVAL;
2193 }
2194
2195 return 0;
2196}
2197
2198
2199int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
2200 struct drm_file *file_priv)
2201{
2202 struct vmw_private *dev_priv = vmw_priv(dev);
2203 struct drm_vmw_update_layout_arg *arg =
2204 (struct drm_vmw_update_layout_arg *)data;
2205 void __user *user_rects;
2206 struct drm_vmw_rect *rects;
2207 unsigned rects_size;
2208 int ret;
2209 int i;
2210 u64 total_pixels = 0;
2211 struct drm_mode_config *mode_config = &dev->mode_config;
2212 struct drm_vmw_rect bounding_box = {0};
2213
2214 if (!arg->num_outputs) {
2215 struct drm_vmw_rect def_rect = {0, 0, 800, 600};
2216 vmw_du_update_layout(dev_priv, 1, &def_rect);
2217 return 0;
2218 }
2219
2220 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2221 rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2222 GFP_KERNEL);
2223 if (unlikely(!rects))
2224 return -ENOMEM;
2225
2226 user_rects = (void __user *)(unsigned long)arg->rects;
2227 ret = copy_from_user(rects, user_rects, rects_size);
2228 if (unlikely(ret != 0)) {
2229 DRM_ERROR("Failed to get rects.\n");
2230 ret = -EFAULT;
2231 goto out_free;
2232 }
2233
2234 for (i = 0; i < arg->num_outputs; ++i) {
2235 if (rects[i].x < 0 ||
2236 rects[i].y < 0 ||
2237 rects[i].x + rects[i].w > mode_config->max_width ||
2238 rects[i].y + rects[i].h > mode_config->max_height) {
2239 DRM_ERROR("Invalid GUI layout.\n");
2240 ret = -EINVAL;
2241 goto out_free;
2242 }
2243
2244 /*
2245 * bounding_box.w and bunding_box.h are used as
2246 * lower-right coordinates
2247 */
2248 if (rects[i].x + rects[i].w > bounding_box.w)
2249 bounding_box.w = rects[i].x + rects[i].w;
2250
2251 if (rects[i].y + rects[i].h > bounding_box.h)
2252 bounding_box.h = rects[i].y + rects[i].h;
2253
2254 total_pixels += (u64) rects[i].w * (u64) rects[i].h;
2255 }
2256
2257 if (dev_priv->active_display_unit == vmw_du_screen_target) {
2258 /*
2259 * For Screen Targets, the limits for a toplogy are:
2260 * 1. Bounding box (assuming 32bpp) must be < prim_bb_mem
2261 * 2. Total pixels (assuming 32bpp) must be < prim_bb_mem
2262 */
2263 u64 bb_mem = (u64) bounding_box.w * bounding_box.h * 4;
2264 u64 pixel_mem = total_pixels * 4;
2265
2266 if (bb_mem > dev_priv->prim_bb_mem) {
2267 DRM_ERROR("Topology is beyond supported limits.\n");
2268 ret = -EINVAL;
2269 goto out_free;
2270 }
2271
2272 if (pixel_mem > dev_priv->prim_bb_mem) {
2273 DRM_ERROR("Combined output size too large\n");
2274 ret = -EINVAL;
2275 goto out_free;
2276 }
2277 }
2278
2279 vmw_du_update_layout(dev_priv, arg->num_outputs, rects);
2280
2281out_free:
2282 kfree(rects);
2283 return ret;
2284}
2285
2286/**
2287 * vmw_kms_helper_dirty - Helper to build commands and perform actions based
2288 * on a set of cliprects and a set of display units.
2289 *
2290 * @dev_priv: Pointer to a device private structure.
2291 * @framebuffer: Pointer to the framebuffer on which to perform the actions.
2292 * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL.
2293 * Cliprects are given in framebuffer coordinates.
2294 * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must
2295 * be NULL. Cliprects are given in source coordinates.
2296 * @dest_x: X coordinate offset for the crtc / destination clip rects.
2297 * @dest_y: Y coordinate offset for the crtc / destination clip rects.
2298 * @num_clips: Number of cliprects in the @clips or @vclips array.
2299 * @increment: Integer with which to increment the clip counter when looping.
2300 * Used to skip a predetermined number of clip rects.
2301 * @dirty: Closure structure. See the description of struct vmw_kms_dirty.
2302 */
2303int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
2304 struct vmw_framebuffer *framebuffer,
2305 const struct drm_clip_rect *clips,
2306 const struct drm_vmw_rect *vclips,
2307 s32 dest_x, s32 dest_y,
2308 int num_clips,
2309 int increment,
2310 struct vmw_kms_dirty *dirty)
2311{
2312 struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
2313 struct drm_crtc *crtc;
2314 u32 num_units = 0;
2315 u32 i, k;
2316
2317 dirty->dev_priv = dev_priv;
2318
2319 /* If crtc is passed, no need to iterate over other display units */
2320 if (dirty->crtc) {
2321 units[num_units++] = vmw_crtc_to_du(dirty->crtc);
2322 } else {
2323 list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list,
2324 head) {
2325 if (crtc->primary->fb != &framebuffer->base)
2326 continue;
2327 units[num_units++] = vmw_crtc_to_du(crtc);
2328 }
2329 }
2330
2331 for (k = 0; k < num_units; k++) {
2332 struct vmw_display_unit *unit = units[k];
2333 s32 crtc_x = unit->crtc.x;
2334 s32 crtc_y = unit->crtc.y;
2335 s32 crtc_width = unit->crtc.mode.hdisplay;
2336 s32 crtc_height = unit->crtc.mode.vdisplay;
2337 const struct drm_clip_rect *clips_ptr = clips;
2338 const struct drm_vmw_rect *vclips_ptr = vclips;
2339
2340 dirty->unit = unit;
2341 if (dirty->fifo_reserve_size > 0) {
2342 dirty->cmd = vmw_fifo_reserve(dev_priv,
2343 dirty->fifo_reserve_size);
2344 if (!dirty->cmd) {
2345 DRM_ERROR("Couldn't reserve fifo space "
2346 "for dirty blits.\n");
2347 return -ENOMEM;
2348 }
2349 memset(dirty->cmd, 0, dirty->fifo_reserve_size);
2350 }
2351 dirty->num_hits = 0;
2352 for (i = 0; i < num_clips; i++, clips_ptr += increment,
2353 vclips_ptr += increment) {
2354 s32 clip_left;
2355 s32 clip_top;
2356
2357 /*
2358 * Select clip array type. Note that integer type
2359 * in @clips is unsigned short, whereas in @vclips
2360 * it's 32-bit.
2361 */
2362 if (clips) {
2363 dirty->fb_x = (s32) clips_ptr->x1;
2364 dirty->fb_y = (s32) clips_ptr->y1;
2365 dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x -
2366 crtc_x;
2367 dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y -
2368 crtc_y;
2369 } else {
2370 dirty->fb_x = vclips_ptr->x;
2371 dirty->fb_y = vclips_ptr->y;
2372 dirty->unit_x2 = dirty->fb_x + vclips_ptr->w +
2373 dest_x - crtc_x;
2374 dirty->unit_y2 = dirty->fb_y + vclips_ptr->h +
2375 dest_y - crtc_y;
2376 }
2377
2378 dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x;
2379 dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y;
2380
2381 /* Skip this clip if it's outside the crtc region */
2382 if (dirty->unit_x1 >= crtc_width ||
2383 dirty->unit_y1 >= crtc_height ||
2384 dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0)
2385 continue;
2386
2387 /* Clip right and bottom to crtc limits */
2388 dirty->unit_x2 = min_t(s32, dirty->unit_x2,
2389 crtc_width);
2390 dirty->unit_y2 = min_t(s32, dirty->unit_y2,
2391 crtc_height);
2392
2393 /* Clip left and top to crtc limits */
2394 clip_left = min_t(s32, dirty->unit_x1, 0);
2395 clip_top = min_t(s32, dirty->unit_y1, 0);
2396 dirty->unit_x1 -= clip_left;
2397 dirty->unit_y1 -= clip_top;
2398 dirty->fb_x -= clip_left;
2399 dirty->fb_y -= clip_top;
2400
2401 dirty->clip(dirty);
2402 }
2403
2404 dirty->fifo_commit(dirty);
2405 }
2406
2407 return 0;
2408}
2409
2410/**
2411 * vmw_kms_helper_buffer_prepare - Reserve and validate a buffer object before
2412 * command submission.
2413 *
2414 * @dev_priv. Pointer to a device private structure.
2415 * @buf: The buffer object
2416 * @interruptible: Whether to perform waits as interruptible.
2417 * @validate_as_mob: Whether the buffer should be validated as a MOB. If false,
2418 * The buffer will be validated as a GMR. Already pinned buffers will not be
2419 * validated.
2420 *
2421 * Returns 0 on success, negative error code on failure, -ERESTARTSYS if
2422 * interrupted by a signal.
2423 */
2424int vmw_kms_helper_buffer_prepare(struct vmw_private *dev_priv,
2425 struct vmw_dma_buffer *buf,
2426 bool interruptible,
2427 bool validate_as_mob,
2428 bool for_cpu_blit)
2429{
2430 struct ttm_operation_ctx ctx = {
2431 .interruptible = interruptible,
2432 .no_wait_gpu = false};
2433 struct ttm_buffer_object *bo = &buf->base;
2434 int ret;
2435
2436 ttm_bo_reserve(bo, false, false, NULL);
2437 if (for_cpu_blit)
2438 ret = ttm_bo_validate(bo, &vmw_nonfixed_placement, &ctx);
2439 else
2440 ret = vmw_validate_single_buffer(dev_priv, bo, interruptible,
2441 validate_as_mob);
2442 if (ret)
2443 ttm_bo_unreserve(bo);
2444
2445 return ret;
2446}
2447
2448/**
2449 * vmw_kms_helper_buffer_revert - Undo the actions of
2450 * vmw_kms_helper_buffer_prepare.
2451 *
2452 * @res: Pointer to the buffer object.
2453 *
2454 * Helper to be used if an error forces the caller to undo the actions of
2455 * vmw_kms_helper_buffer_prepare.
2456 */
2457void vmw_kms_helper_buffer_revert(struct vmw_dma_buffer *buf)
2458{
2459 if (buf)
2460 ttm_bo_unreserve(&buf->base);
2461}
2462
2463/**
2464 * vmw_kms_helper_buffer_finish - Unreserve and fence a buffer object after
2465 * kms command submission.
2466 *
2467 * @dev_priv: Pointer to a device private structure.
2468 * @file_priv: Pointer to a struct drm_file representing the caller's
2469 * connection. Must be set to NULL if @user_fence_rep is NULL, and conversely
2470 * if non-NULL, @user_fence_rep must be non-NULL.
2471 * @buf: The buffer object.
2472 * @out_fence: Optional pointer to a fence pointer. If non-NULL, a
2473 * ref-counted fence pointer is returned here.
2474 * @user_fence_rep: Optional pointer to a user-space provided struct
2475 * drm_vmw_fence_rep. If provided, @file_priv must also be provided and the
2476 * function copies fence data to user-space in a fail-safe manner.
2477 */
2478void vmw_kms_helper_buffer_finish(struct vmw_private *dev_priv,
2479 struct drm_file *file_priv,
2480 struct vmw_dma_buffer *buf,
2481 struct vmw_fence_obj **out_fence,
2482 struct drm_vmw_fence_rep __user *
2483 user_fence_rep)
2484{
2485 struct vmw_fence_obj *fence;
2486 uint32_t handle;
2487 int ret;
2488
2489 ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
2490 file_priv ? &handle : NULL);
2491 if (buf)
2492 vmw_fence_single_bo(&buf->base, fence);
2493 if (file_priv)
2494 vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv),
2495 ret, user_fence_rep, fence,
2496 handle, -1, NULL);
2497 if (out_fence)
2498 *out_fence = fence;
2499 else
2500 vmw_fence_obj_unreference(&fence);
2501
2502 vmw_kms_helper_buffer_revert(buf);
2503}
2504
2505
2506/**
2507 * vmw_kms_helper_resource_revert - Undo the actions of
2508 * vmw_kms_helper_resource_prepare.
2509 *
2510 * @res: Pointer to the resource. Typically a surface.
2511 *
2512 * Helper to be used if an error forces the caller to undo the actions of
2513 * vmw_kms_helper_resource_prepare.
2514 */
2515void vmw_kms_helper_resource_revert(struct vmw_validation_ctx *ctx)
2516{
2517 struct vmw_resource *res = ctx->res;
2518
2519 vmw_kms_helper_buffer_revert(ctx->buf);
2520 vmw_dmabuf_unreference(&ctx->buf);
2521 vmw_resource_unreserve(res, false, NULL, 0);
2522 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
2523}
2524
2525/**
2526 * vmw_kms_helper_resource_prepare - Reserve and validate a resource before
2527 * command submission.
2528 *
2529 * @res: Pointer to the resource. Typically a surface.
2530 * @interruptible: Whether to perform waits as interruptible.
2531 *
2532 * Reserves and validates also the backup buffer if a guest-backed resource.
2533 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
2534 * interrupted by a signal.
2535 */
2536int vmw_kms_helper_resource_prepare(struct vmw_resource *res,
2537 bool interruptible,
2538 struct vmw_validation_ctx *ctx)
2539{
2540 int ret = 0;
2541
2542 ctx->buf = NULL;
2543 ctx->res = res;
2544
2545 if (interruptible)
2546 ret = mutex_lock_interruptible(&res->dev_priv->cmdbuf_mutex);
2547 else
2548 mutex_lock(&res->dev_priv->cmdbuf_mutex);
2549
2550 if (unlikely(ret != 0))
2551 return -ERESTARTSYS;
2552
2553 ret = vmw_resource_reserve(res, interruptible, false);
2554 if (ret)
2555 goto out_unlock;
2556
2557 if (res->backup) {
2558 ret = vmw_kms_helper_buffer_prepare(res->dev_priv, res->backup,
2559 interruptible,
2560 res->dev_priv->has_mob,
2561 false);
2562 if (ret)
2563 goto out_unreserve;
2564
2565 ctx->buf = vmw_dmabuf_reference(res->backup);
2566 }
2567 ret = vmw_resource_validate(res);
2568 if (ret)
2569 goto out_revert;
2570 return 0;
2571
2572out_revert:
2573 vmw_kms_helper_buffer_revert(ctx->buf);
2574out_unreserve:
2575 vmw_resource_unreserve(res, false, NULL, 0);
2576out_unlock:
2577 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
2578 return ret;
2579}
2580
2581/**
2582 * vmw_kms_helper_resource_finish - Unreserve and fence a resource after
2583 * kms command submission.
2584 *
2585 * @res: Pointer to the resource. Typically a surface.
2586 * @out_fence: Optional pointer to a fence pointer. If non-NULL, a
2587 * ref-counted fence pointer is returned here.
2588 */
2589void vmw_kms_helper_resource_finish(struct vmw_validation_ctx *ctx,
2590 struct vmw_fence_obj **out_fence)
2591{
2592 struct vmw_resource *res = ctx->res;
2593
2594 if (ctx->buf || out_fence)
2595 vmw_kms_helper_buffer_finish(res->dev_priv, NULL, ctx->buf,
2596 out_fence, NULL);
2597
2598 vmw_dmabuf_unreference(&ctx->buf);
2599 vmw_resource_unreserve(res, false, NULL, 0);
2600 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
2601}
2602
2603/**
2604 * vmw_kms_update_proxy - Helper function to update a proxy surface from
2605 * its backing MOB.
2606 *
2607 * @res: Pointer to the surface resource
2608 * @clips: Clip rects in framebuffer (surface) space.
2609 * @num_clips: Number of clips in @clips.
2610 * @increment: Integer with which to increment the clip counter when looping.
2611 * Used to skip a predetermined number of clip rects.
2612 *
2613 * This function makes sure the proxy surface is updated from its backing MOB
2614 * using the region given by @clips. The surface resource @res and its backing
2615 * MOB needs to be reserved and validated on call.
2616 */
2617int vmw_kms_update_proxy(struct vmw_resource *res,
2618 const struct drm_clip_rect *clips,
2619 unsigned num_clips,
2620 int increment)
2621{
2622 struct vmw_private *dev_priv = res->dev_priv;
2623 struct drm_vmw_size *size = &vmw_res_to_srf(res)->base_size;
2624 struct {
2625 SVGA3dCmdHeader header;
2626 SVGA3dCmdUpdateGBImage body;
2627 } *cmd;
2628 SVGA3dBox *box;
2629 size_t copy_size = 0;
2630 int i;
2631
2632 if (!clips)
2633 return 0;
2634
2635 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd) * num_clips);
2636 if (!cmd) {
2637 DRM_ERROR("Couldn't reserve fifo space for proxy surface "
2638 "update.\n");
2639 return -ENOMEM;
2640 }
2641
2642 for (i = 0; i < num_clips; ++i, clips += increment, ++cmd) {
2643 box = &cmd->body.box;
2644
2645 cmd->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
2646 cmd->header.size = sizeof(cmd->body);
2647 cmd->body.image.sid = res->id;
2648 cmd->body.image.face = 0;
2649 cmd->body.image.mipmap = 0;
2650
2651 if (clips->x1 > size->width || clips->x2 > size->width ||
2652 clips->y1 > size->height || clips->y2 > size->height) {
2653 DRM_ERROR("Invalid clips outsize of framebuffer.\n");
2654 return -EINVAL;
2655 }
2656
2657 box->x = clips->x1;
2658 box->y = clips->y1;
2659 box->z = 0;
2660 box->w = clips->x2 - clips->x1;
2661 box->h = clips->y2 - clips->y1;
2662 box->d = 1;
2663
2664 copy_size += sizeof(*cmd);
2665 }
2666
2667 vmw_fifo_commit(dev_priv, copy_size);
2668
2669 return 0;
2670}
2671
2672int vmw_kms_fbdev_init_data(struct vmw_private *dev_priv,
2673 unsigned unit,
2674 u32 max_width,
2675 u32 max_height,
2676 struct drm_connector **p_con,
2677 struct drm_crtc **p_crtc,
2678 struct drm_display_mode **p_mode)
2679{
2680 struct drm_connector *con;
2681 struct vmw_display_unit *du;
2682 struct drm_display_mode *mode;
2683 int i = 0;
2684 int ret = 0;
2685
2686 mutex_lock(&dev_priv->dev->mode_config.mutex);
2687 list_for_each_entry(con, &dev_priv->dev->mode_config.connector_list,
2688 head) {
2689 if (i == unit)
2690 break;
2691
2692 ++i;
2693 }
2694
2695 if (i != unit) {
2696 DRM_ERROR("Could not find initial display unit.\n");
2697 ret = -EINVAL;
2698 goto out_unlock;
2699 }
2700
2701 if (list_empty(&con->modes))
2702 (void) vmw_du_connector_fill_modes(con, max_width, max_height);
2703
2704 if (list_empty(&con->modes)) {
2705 DRM_ERROR("Could not find initial display mode.\n");
2706 ret = -EINVAL;
2707 goto out_unlock;
2708 }
2709
2710 du = vmw_connector_to_du(con);
2711 *p_con = con;
2712 *p_crtc = &du->crtc;
2713
2714 list_for_each_entry(mode, &con->modes, head) {
2715 if (mode->type & DRM_MODE_TYPE_PREFERRED)
2716 break;
2717 }
2718
2719 if (mode->type & DRM_MODE_TYPE_PREFERRED)
2720 *p_mode = mode;
2721 else {
2722 WARN_ONCE(true, "Could not find initial preferred mode.\n");
2723 *p_mode = list_first_entry(&con->modes,
2724 struct drm_display_mode,
2725 head);
2726 }
2727
2728 out_unlock:
2729 mutex_unlock(&dev_priv->dev->mode_config.mutex);
2730
2731 return ret;
2732}
2733
2734/**
2735 * vmw_kms_del_active - unregister a crtc binding to the implicit framebuffer
2736 *
2737 * @dev_priv: Pointer to a device private struct.
2738 * @du: The display unit of the crtc.
2739 */
2740void vmw_kms_del_active(struct vmw_private *dev_priv,
2741 struct vmw_display_unit *du)
2742{
2743 mutex_lock(&dev_priv->global_kms_state_mutex);
2744 if (du->active_implicit) {
2745 if (--(dev_priv->num_implicit) == 0)
2746 dev_priv->implicit_fb = NULL;
2747 du->active_implicit = false;
2748 }
2749 mutex_unlock(&dev_priv->global_kms_state_mutex);
2750}
2751
2752/**
2753 * vmw_kms_add_active - register a crtc binding to an implicit framebuffer
2754 *
2755 * @vmw_priv: Pointer to a device private struct.
2756 * @du: The display unit of the crtc.
2757 * @vfb: The implicit framebuffer
2758 *
2759 * Registers a binding to an implicit framebuffer.
2760 */
2761void vmw_kms_add_active(struct vmw_private *dev_priv,
2762 struct vmw_display_unit *du,
2763 struct vmw_framebuffer *vfb)
2764{
2765 mutex_lock(&dev_priv->global_kms_state_mutex);
2766 WARN_ON_ONCE(!dev_priv->num_implicit && dev_priv->implicit_fb);
2767
2768 if (!du->active_implicit && du->is_implicit) {
2769 dev_priv->implicit_fb = vfb;
2770 du->active_implicit = true;
2771 dev_priv->num_implicit++;
2772 }
2773 mutex_unlock(&dev_priv->global_kms_state_mutex);
2774}
2775
2776/**
2777 * vmw_kms_screen_object_flippable - Check whether we can page-flip a crtc.
2778 *
2779 * @dev_priv: Pointer to device-private struct.
2780 * @crtc: The crtc we want to flip.
2781 *
2782 * Returns true or false depending whether it's OK to flip this crtc
2783 * based on the criterion that we must not have more than one implicit
2784 * frame-buffer at any one time.
2785 */
2786bool vmw_kms_crtc_flippable(struct vmw_private *dev_priv,
2787 struct drm_crtc *crtc)
2788{
2789 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
2790 bool ret;
2791
2792 mutex_lock(&dev_priv->global_kms_state_mutex);
2793 ret = !du->is_implicit || dev_priv->num_implicit == 1;
2794 mutex_unlock(&dev_priv->global_kms_state_mutex);
2795
2796 return ret;
2797}
2798
2799/**
2800 * vmw_kms_update_implicit_fb - Update the implicit fb.
2801 *
2802 * @dev_priv: Pointer to device-private struct.
2803 * @crtc: The crtc the new implicit frame-buffer is bound to.
2804 */
2805void vmw_kms_update_implicit_fb(struct vmw_private *dev_priv,
2806 struct drm_crtc *crtc)
2807{
2808 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
2809 struct vmw_framebuffer *vfb;
2810
2811 mutex_lock(&dev_priv->global_kms_state_mutex);
2812
2813 if (!du->is_implicit)
2814 goto out_unlock;
2815
2816 vfb = vmw_framebuffer_to_vfb(crtc->primary->fb);
2817 WARN_ON_ONCE(dev_priv->num_implicit != 1 &&
2818 dev_priv->implicit_fb != vfb);
2819
2820 dev_priv->implicit_fb = vfb;
2821out_unlock:
2822 mutex_unlock(&dev_priv->global_kms_state_mutex);
2823}
2824
2825/**
2826 * vmw_kms_create_implicit_placement_proparty - Set up the implicit placement
2827 * property.
2828 *
2829 * @dev_priv: Pointer to a device private struct.
2830 * @immutable: Whether the property is immutable.
2831 *
2832 * Sets up the implicit placement property unless it's already set up.
2833 */
2834void
2835vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv,
2836 bool immutable)
2837{
2838 if (dev_priv->implicit_placement_property)
2839 return;
2840
2841 dev_priv->implicit_placement_property =
2842 drm_property_create_range(dev_priv->dev,
2843 immutable ?
2844 DRM_MODE_PROP_IMMUTABLE : 0,
2845 "implicit_placement", 0, 1);
2846
2847}
2848
2849
2850/**
2851 * vmw_kms_set_config - Wrapper around drm_atomic_helper_set_config
2852 *
2853 * @set: The configuration to set.
2854 *
2855 * The vmwgfx Xorg driver doesn't assign the mode::type member, which
2856 * when drm_mode_set_crtcinfo is called as part of the configuration setting
2857 * causes it to return incorrect crtc dimensions causing severe problems in
2858 * the vmwgfx modesetting. So explicitly clear that member before calling
2859 * into drm_atomic_helper_set_config.
2860 */
2861int vmw_kms_set_config(struct drm_mode_set *set,
2862 struct drm_modeset_acquire_ctx *ctx)
2863{
2864 if (set && set->mode)
2865 set->mode->type = 0;
2866
2867 return drm_atomic_helper_set_config(set, ctx);
2868}
2869
2870
2871/**
2872 * vmw_kms_suspend - Save modesetting state and turn modesetting off.
2873 *
2874 * @dev: Pointer to the drm device
2875 * Return: 0 on success. Negative error code on failure.
2876 */
2877int vmw_kms_suspend(struct drm_device *dev)
2878{
2879 struct vmw_private *dev_priv = vmw_priv(dev);
2880
2881 dev_priv->suspend_state = drm_atomic_helper_suspend(dev);
2882 if (IS_ERR(dev_priv->suspend_state)) {
2883 int ret = PTR_ERR(dev_priv->suspend_state);
2884
2885 DRM_ERROR("Failed kms suspend: %d\n", ret);
2886 dev_priv->suspend_state = NULL;
2887
2888 return ret;
2889 }
2890
2891 return 0;
2892}
2893
2894
2895/**
2896 * vmw_kms_resume - Re-enable modesetting and restore state
2897 *
2898 * @dev: Pointer to the drm device
2899 * Return: 0 on success. Negative error code on failure.
2900 *
2901 * State is resumed from a previous vmw_kms_suspend(). It's illegal
2902 * to call this function without a previous vmw_kms_suspend().
2903 */
2904int vmw_kms_resume(struct drm_device *dev)
2905{
2906 struct vmw_private *dev_priv = vmw_priv(dev);
2907 int ret;
2908
2909 if (WARN_ON(!dev_priv->suspend_state))
2910 return 0;
2911
2912 ret = drm_atomic_helper_resume(dev, dev_priv->suspend_state);
2913 dev_priv->suspend_state = NULL;
2914
2915 return ret;
2916}
2917
2918/**
2919 * vmw_kms_lost_device - Notify kms that modesetting capabilities will be lost
2920 *
2921 * @dev: Pointer to the drm device
2922 */
2923void vmw_kms_lost_device(struct drm_device *dev)
2924{
2925 drm_atomic_helper_shutdown(dev);
2926}