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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// SPDX-License-Identifier: GPL-2.0 OR MIT
2/**************************************************************************
3 *
4 * Copyright 2009-2015 VMware, Inc., Palo Alto, CA., USA
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#include <drm/drm_atomic.h>
29#include <drm/drm_atomic_helper.h>
30#include <drm/drm_damage_helper.h>
31#include <drm/drm_fourcc.h>
32#include <drm/drm_plane_helper.h>
33#include <drm/drm_rect.h>
34#include <drm/drm_sysfs.h>
35#include <drm/drm_vblank.h>
36
37#include "vmwgfx_kms.h"
38
39/* Might need a hrtimer here? */
40#define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
41
42void vmw_du_cleanup(struct vmw_display_unit *du)
43{
44 drm_plane_cleanup(&du->primary);
45 drm_plane_cleanup(&du->cursor);
46
47 drm_connector_unregister(&du->connector);
48 drm_crtc_cleanup(&du->crtc);
49 drm_encoder_cleanup(&du->encoder);
50 drm_connector_cleanup(&du->connector);
51}
52
53/*
54 * Display Unit Cursor functions
55 */
56
57static int vmw_cursor_update_image(struct vmw_private *dev_priv,
58 u32 *image, u32 width, u32 height,
59 u32 hotspotX, u32 hotspotY)
60{
61 struct {
62 u32 cmd;
63 SVGAFifoCmdDefineAlphaCursor cursor;
64 } *cmd;
65 u32 image_size = width * height * 4;
66 u32 cmd_size = sizeof(*cmd) + image_size;
67
68 if (!image)
69 return -EINVAL;
70
71 cmd = VMW_FIFO_RESERVE(dev_priv, cmd_size);
72 if (unlikely(cmd == NULL))
73 return -ENOMEM;
74
75 memset(cmd, 0, sizeof(*cmd));
76
77 memcpy(&cmd[1], image, image_size);
78
79 cmd->cmd = SVGA_CMD_DEFINE_ALPHA_CURSOR;
80 cmd->cursor.id = 0;
81 cmd->cursor.width = width;
82 cmd->cursor.height = height;
83 cmd->cursor.hotspotX = hotspotX;
84 cmd->cursor.hotspotY = hotspotY;
85
86 vmw_fifo_commit_flush(dev_priv, cmd_size);
87
88 return 0;
89}
90
91static int vmw_cursor_update_bo(struct vmw_private *dev_priv,
92 struct vmw_buffer_object *bo,
93 u32 width, u32 height,
94 u32 hotspotX, u32 hotspotY)
95{
96 struct ttm_bo_kmap_obj map;
97 unsigned long kmap_offset;
98 unsigned long kmap_num;
99 void *virtual;
100 bool dummy;
101 int ret;
102
103 kmap_offset = 0;
104 kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
105
106 ret = ttm_bo_reserve(&bo->base, true, false, NULL);
107 if (unlikely(ret != 0)) {
108 DRM_ERROR("reserve failed\n");
109 return -EINVAL;
110 }
111
112 ret = ttm_bo_kmap(&bo->base, kmap_offset, kmap_num, &map);
113 if (unlikely(ret != 0))
114 goto err_unreserve;
115
116 virtual = ttm_kmap_obj_virtual(&map, &dummy);
117 ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
118 hotspotX, hotspotY);
119
120 ttm_bo_kunmap(&map);
121err_unreserve:
122 ttm_bo_unreserve(&bo->base);
123
124 return ret;
125}
126
127
128static void vmw_cursor_update_position(struct vmw_private *dev_priv,
129 bool show, int x, int y)
130{
131 u32 *fifo_mem = dev_priv->mmio_virt;
132 uint32_t count;
133
134 spin_lock(&dev_priv->cursor_lock);
135 vmw_mmio_write(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
136 vmw_mmio_write(x, fifo_mem + SVGA_FIFO_CURSOR_X);
137 vmw_mmio_write(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
138 count = vmw_mmio_read(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
139 vmw_mmio_write(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
140 spin_unlock(&dev_priv->cursor_lock);
141}
142
143
144void vmw_kms_cursor_snoop(struct vmw_surface *srf,
145 struct ttm_object_file *tfile,
146 struct ttm_buffer_object *bo,
147 SVGA3dCmdHeader *header)
148{
149 struct ttm_bo_kmap_obj map;
150 unsigned long kmap_offset;
151 unsigned long kmap_num;
152 SVGA3dCopyBox *box;
153 unsigned box_count;
154 void *virtual;
155 bool dummy;
156 struct vmw_dma_cmd {
157 SVGA3dCmdHeader header;
158 SVGA3dCmdSurfaceDMA dma;
159 } *cmd;
160 int i, ret;
161
162 cmd = container_of(header, struct vmw_dma_cmd, header);
163
164 /* No snooper installed */
165 if (!srf->snooper.image)
166 return;
167
168 if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
169 DRM_ERROR("face and mipmap for cursors should never != 0\n");
170 return;
171 }
172
173 if (cmd->header.size < 64) {
174 DRM_ERROR("at least one full copy box must be given\n");
175 return;
176 }
177
178 box = (SVGA3dCopyBox *)&cmd[1];
179 box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
180 sizeof(SVGA3dCopyBox);
181
182 if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
183 box->x != 0 || box->y != 0 || box->z != 0 ||
184 box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
185 box->d != 1 || box_count != 1) {
186 /* TODO handle none page aligned offsets */
187 /* TODO handle more dst & src != 0 */
188 /* TODO handle more then one copy */
189 DRM_ERROR("Can't snoop dma request for cursor!\n");
190 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
191 box->srcx, box->srcy, box->srcz,
192 box->x, box->y, box->z,
193 box->w, box->h, box->d, box_count,
194 cmd->dma.guest.ptr.offset);
195 return;
196 }
197
198 kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
199 kmap_num = (64*64*4) >> PAGE_SHIFT;
200
201 ret = ttm_bo_reserve(bo, true, false, NULL);
202 if (unlikely(ret != 0)) {
203 DRM_ERROR("reserve failed\n");
204 return;
205 }
206
207 ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
208 if (unlikely(ret != 0))
209 goto err_unreserve;
210
211 virtual = ttm_kmap_obj_virtual(&map, &dummy);
212
213 if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
214 memcpy(srf->snooper.image, virtual, 64*64*4);
215 } else {
216 /* Image is unsigned pointer. */
217 for (i = 0; i < box->h; i++)
218 memcpy(srf->snooper.image + i * 64,
219 virtual + i * cmd->dma.guest.pitch,
220 box->w * 4);
221 }
222
223 srf->snooper.age++;
224
225 ttm_bo_kunmap(&map);
226err_unreserve:
227 ttm_bo_unreserve(bo);
228}
229
230/**
231 * vmw_kms_legacy_hotspot_clear - Clear legacy hotspots
232 *
233 * @dev_priv: Pointer to the device private struct.
234 *
235 * Clears all legacy hotspots.
236 */
237void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv)
238{
239 struct drm_device *dev = dev_priv->dev;
240 struct vmw_display_unit *du;
241 struct drm_crtc *crtc;
242
243 drm_modeset_lock_all(dev);
244 drm_for_each_crtc(crtc, dev) {
245 du = vmw_crtc_to_du(crtc);
246
247 du->hotspot_x = 0;
248 du->hotspot_y = 0;
249 }
250 drm_modeset_unlock_all(dev);
251}
252
253void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
254{
255 struct drm_device *dev = dev_priv->dev;
256 struct vmw_display_unit *du;
257 struct drm_crtc *crtc;
258
259 mutex_lock(&dev->mode_config.mutex);
260
261 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
262 du = vmw_crtc_to_du(crtc);
263 if (!du->cursor_surface ||
264 du->cursor_age == du->cursor_surface->snooper.age)
265 continue;
266
267 du->cursor_age = du->cursor_surface->snooper.age;
268 vmw_cursor_update_image(dev_priv,
269 du->cursor_surface->snooper.image,
270 64, 64,
271 du->hotspot_x + du->core_hotspot_x,
272 du->hotspot_y + du->core_hotspot_y);
273 }
274
275 mutex_unlock(&dev->mode_config.mutex);
276}
277
278
279void vmw_du_cursor_plane_destroy(struct drm_plane *plane)
280{
281 vmw_cursor_update_position(plane->dev->dev_private, false, 0, 0);
282
283 drm_plane_cleanup(plane);
284}
285
286
287void vmw_du_primary_plane_destroy(struct drm_plane *plane)
288{
289 drm_plane_cleanup(plane);
290
291 /* Planes are static in our case so we don't free it */
292}
293
294
295/**
296 * vmw_du_vps_unpin_surf - unpins resource associated with a framebuffer surface
297 *
298 * @vps: plane state associated with the display surface
299 * @unreference: true if we also want to unreference the display.
300 */
301void vmw_du_plane_unpin_surf(struct vmw_plane_state *vps,
302 bool unreference)
303{
304 if (vps->surf) {
305 if (vps->pinned) {
306 vmw_resource_unpin(&vps->surf->res);
307 vps->pinned--;
308 }
309
310 if (unreference) {
311 if (vps->pinned)
312 DRM_ERROR("Surface still pinned\n");
313 vmw_surface_unreference(&vps->surf);
314 }
315 }
316}
317
318
319/**
320 * vmw_du_plane_cleanup_fb - Unpins the cursor
321 *
322 * @plane: display plane
323 * @old_state: Contains the FB to clean up
324 *
325 * Unpins the framebuffer surface
326 *
327 * Returns 0 on success
328 */
329void
330vmw_du_plane_cleanup_fb(struct drm_plane *plane,
331 struct drm_plane_state *old_state)
332{
333 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
334
335 vmw_du_plane_unpin_surf(vps, false);
336}
337
338
339/**
340 * vmw_du_cursor_plane_prepare_fb - Readies the cursor by referencing it
341 *
342 * @plane: display plane
343 * @new_state: info on the new plane state, including the FB
344 *
345 * Returns 0 on success
346 */
347int
348vmw_du_cursor_plane_prepare_fb(struct drm_plane *plane,
349 struct drm_plane_state *new_state)
350{
351 struct drm_framebuffer *fb = new_state->fb;
352 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
353
354
355 if (vps->surf)
356 vmw_surface_unreference(&vps->surf);
357
358 if (vps->bo)
359 vmw_bo_unreference(&vps->bo);
360
361 if (fb) {
362 if (vmw_framebuffer_to_vfb(fb)->bo) {
363 vps->bo = vmw_framebuffer_to_vfbd(fb)->buffer;
364 vmw_bo_reference(vps->bo);
365 } else {
366 vps->surf = vmw_framebuffer_to_vfbs(fb)->surface;
367 vmw_surface_reference(vps->surf);
368 }
369 }
370
371 return 0;
372}
373
374
375void
376vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
377 struct drm_plane_state *old_state)
378{
379 struct drm_crtc *crtc = plane->state->crtc ?: old_state->crtc;
380 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
381 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
382 struct vmw_plane_state *vps = vmw_plane_state_to_vps(plane->state);
383 s32 hotspot_x, hotspot_y;
384 int ret = 0;
385
386
387 hotspot_x = du->hotspot_x;
388 hotspot_y = du->hotspot_y;
389
390 if (plane->state->fb) {
391 hotspot_x += plane->state->fb->hot_x;
392 hotspot_y += plane->state->fb->hot_y;
393 }
394
395 du->cursor_surface = vps->surf;
396 du->cursor_bo = vps->bo;
397
398 if (vps->surf) {
399 du->cursor_age = du->cursor_surface->snooper.age;
400
401 ret = vmw_cursor_update_image(dev_priv,
402 vps->surf->snooper.image,
403 64, 64, hotspot_x,
404 hotspot_y);
405 } else if (vps->bo) {
406 ret = vmw_cursor_update_bo(dev_priv, vps->bo,
407 plane->state->crtc_w,
408 plane->state->crtc_h,
409 hotspot_x, hotspot_y);
410 } else {
411 vmw_cursor_update_position(dev_priv, false, 0, 0);
412 return;
413 }
414
415 if (!ret) {
416 du->cursor_x = plane->state->crtc_x + du->set_gui_x;
417 du->cursor_y = plane->state->crtc_y + du->set_gui_y;
418
419 vmw_cursor_update_position(dev_priv, true,
420 du->cursor_x + hotspot_x,
421 du->cursor_y + hotspot_y);
422
423 du->core_hotspot_x = hotspot_x - du->hotspot_x;
424 du->core_hotspot_y = hotspot_y - du->hotspot_y;
425 } else {
426 DRM_ERROR("Failed to update cursor image\n");
427 }
428}
429
430
431/**
432 * vmw_du_primary_plane_atomic_check - check if the new state is okay
433 *
434 * @plane: display plane
435 * @state: info on the new plane state, including the FB
436 *
437 * Check if the new state is settable given the current state. Other
438 * than what the atomic helper checks, we care about crtc fitting
439 * the FB and maintaining one active framebuffer.
440 *
441 * Returns 0 on success
442 */
443int vmw_du_primary_plane_atomic_check(struct drm_plane *plane,
444 struct drm_plane_state *state)
445{
446 struct drm_crtc_state *crtc_state = NULL;
447 struct drm_framebuffer *new_fb = state->fb;
448 int ret;
449
450 if (state->crtc)
451 crtc_state = drm_atomic_get_new_crtc_state(state->state, state->crtc);
452
453 ret = drm_atomic_helper_check_plane_state(state, crtc_state,
454 DRM_PLANE_HELPER_NO_SCALING,
455 DRM_PLANE_HELPER_NO_SCALING,
456 false, true);
457
458 if (!ret && new_fb) {
459 struct drm_crtc *crtc = state->crtc;
460 struct vmw_connector_state *vcs;
461 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
462
463 vcs = vmw_connector_state_to_vcs(du->connector.state);
464 }
465
466
467 return ret;
468}
469
470
471/**
472 * vmw_du_cursor_plane_atomic_check - check if the new state is okay
473 *
474 * @plane: cursor plane
475 * @state: info on the new plane state
476 *
477 * This is a chance to fail if the new cursor state does not fit
478 * our requirements.
479 *
480 * Returns 0 on success
481 */
482int vmw_du_cursor_plane_atomic_check(struct drm_plane *plane,
483 struct drm_plane_state *new_state)
484{
485 int ret = 0;
486 struct drm_crtc_state *crtc_state = NULL;
487 struct vmw_surface *surface = NULL;
488 struct drm_framebuffer *fb = new_state->fb;
489
490 if (new_state->crtc)
491 crtc_state = drm_atomic_get_new_crtc_state(new_state->state,
492 new_state->crtc);
493
494 ret = drm_atomic_helper_check_plane_state(new_state, crtc_state,
495 DRM_PLANE_HELPER_NO_SCALING,
496 DRM_PLANE_HELPER_NO_SCALING,
497 true, true);
498 if (ret)
499 return ret;
500
501 /* Turning off */
502 if (!fb)
503 return 0;
504
505 /* A lot of the code assumes this */
506 if (new_state->crtc_w != 64 || new_state->crtc_h != 64) {
507 DRM_ERROR("Invalid cursor dimensions (%d, %d)\n",
508 new_state->crtc_w, new_state->crtc_h);
509 ret = -EINVAL;
510 }
511
512 if (!vmw_framebuffer_to_vfb(fb)->bo)
513 surface = vmw_framebuffer_to_vfbs(fb)->surface;
514
515 if (surface && !surface->snooper.image) {
516 DRM_ERROR("surface not suitable for cursor\n");
517 ret = -EINVAL;
518 }
519
520 return ret;
521}
522
523
524int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
525 struct drm_crtc_state *new_state)
526{
527 struct vmw_display_unit *du = vmw_crtc_to_du(new_state->crtc);
528 int connector_mask = drm_connector_mask(&du->connector);
529 bool has_primary = new_state->plane_mask &
530 drm_plane_mask(crtc->primary);
531
532 /* We always want to have an active plane with an active CRTC */
533 if (has_primary != new_state->enable)
534 return -EINVAL;
535
536
537 if (new_state->connector_mask != connector_mask &&
538 new_state->connector_mask != 0) {
539 DRM_ERROR("Invalid connectors configuration\n");
540 return -EINVAL;
541 }
542
543 /*
544 * Our virtual device does not have a dot clock, so use the logical
545 * clock value as the dot clock.
546 */
547 if (new_state->mode.crtc_clock == 0)
548 new_state->adjusted_mode.crtc_clock = new_state->mode.clock;
549
550 return 0;
551}
552
553
554void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
555 struct drm_crtc_state *old_crtc_state)
556{
557}
558
559
560void vmw_du_crtc_atomic_flush(struct drm_crtc *crtc,
561 struct drm_crtc_state *old_crtc_state)
562{
563 struct drm_pending_vblank_event *event = crtc->state->event;
564
565 if (event) {
566 crtc->state->event = NULL;
567
568 spin_lock_irq(&crtc->dev->event_lock);
569 drm_crtc_send_vblank_event(crtc, event);
570 spin_unlock_irq(&crtc->dev->event_lock);
571 }
572}
573
574
575/**
576 * vmw_du_crtc_duplicate_state - duplicate crtc state
577 * @crtc: DRM crtc
578 *
579 * Allocates and returns a copy of the crtc state (both common and
580 * vmw-specific) for the specified crtc.
581 *
582 * Returns: The newly allocated crtc state, or NULL on failure.
583 */
584struct drm_crtc_state *
585vmw_du_crtc_duplicate_state(struct drm_crtc *crtc)
586{
587 struct drm_crtc_state *state;
588 struct vmw_crtc_state *vcs;
589
590 if (WARN_ON(!crtc->state))
591 return NULL;
592
593 vcs = kmemdup(crtc->state, sizeof(*vcs), GFP_KERNEL);
594
595 if (!vcs)
596 return NULL;
597
598 state = &vcs->base;
599
600 __drm_atomic_helper_crtc_duplicate_state(crtc, state);
601
602 return state;
603}
604
605
606/**
607 * vmw_du_crtc_reset - creates a blank vmw crtc state
608 * @crtc: DRM crtc
609 *
610 * Resets the atomic state for @crtc by freeing the state pointer (which
611 * might be NULL, e.g. at driver load time) and allocating a new empty state
612 * object.
613 */
614void vmw_du_crtc_reset(struct drm_crtc *crtc)
615{
616 struct vmw_crtc_state *vcs;
617
618
619 if (crtc->state) {
620 __drm_atomic_helper_crtc_destroy_state(crtc->state);
621
622 kfree(vmw_crtc_state_to_vcs(crtc->state));
623 }
624
625 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
626
627 if (!vcs) {
628 DRM_ERROR("Cannot allocate vmw_crtc_state\n");
629 return;
630 }
631
632 __drm_atomic_helper_crtc_reset(crtc, &vcs->base);
633}
634
635
636/**
637 * vmw_du_crtc_destroy_state - destroy crtc state
638 * @crtc: DRM crtc
639 * @state: state object to destroy
640 *
641 * Destroys the crtc state (both common and vmw-specific) for the
642 * specified plane.
643 */
644void
645vmw_du_crtc_destroy_state(struct drm_crtc *crtc,
646 struct drm_crtc_state *state)
647{
648 drm_atomic_helper_crtc_destroy_state(crtc, state);
649}
650
651
652/**
653 * vmw_du_plane_duplicate_state - duplicate plane state
654 * @plane: drm plane
655 *
656 * Allocates and returns a copy of the plane state (both common and
657 * vmw-specific) for the specified plane.
658 *
659 * Returns: The newly allocated plane state, or NULL on failure.
660 */
661struct drm_plane_state *
662vmw_du_plane_duplicate_state(struct drm_plane *plane)
663{
664 struct drm_plane_state *state;
665 struct vmw_plane_state *vps;
666
667 vps = kmemdup(plane->state, sizeof(*vps), GFP_KERNEL);
668
669 if (!vps)
670 return NULL;
671
672 vps->pinned = 0;
673 vps->cpp = 0;
674
675 /* Each ref counted resource needs to be acquired again */
676 if (vps->surf)
677 (void) vmw_surface_reference(vps->surf);
678
679 if (vps->bo)
680 (void) vmw_bo_reference(vps->bo);
681
682 state = &vps->base;
683
684 __drm_atomic_helper_plane_duplicate_state(plane, state);
685
686 return state;
687}
688
689
690/**
691 * vmw_du_plane_reset - creates a blank vmw plane state
692 * @plane: drm plane
693 *
694 * Resets the atomic state for @plane by freeing the state pointer (which might
695 * be NULL, e.g. at driver load time) and allocating a new empty state object.
696 */
697void vmw_du_plane_reset(struct drm_plane *plane)
698{
699 struct vmw_plane_state *vps;
700
701
702 if (plane->state)
703 vmw_du_plane_destroy_state(plane, plane->state);
704
705 vps = kzalloc(sizeof(*vps), GFP_KERNEL);
706
707 if (!vps) {
708 DRM_ERROR("Cannot allocate vmw_plane_state\n");
709 return;
710 }
711
712 __drm_atomic_helper_plane_reset(plane, &vps->base);
713}
714
715
716/**
717 * vmw_du_plane_destroy_state - destroy plane state
718 * @plane: DRM plane
719 * @state: state object to destroy
720 *
721 * Destroys the plane state (both common and vmw-specific) for the
722 * specified plane.
723 */
724void
725vmw_du_plane_destroy_state(struct drm_plane *plane,
726 struct drm_plane_state *state)
727{
728 struct vmw_plane_state *vps = vmw_plane_state_to_vps(state);
729
730
731 /* Should have been freed by cleanup_fb */
732 if (vps->surf)
733 vmw_surface_unreference(&vps->surf);
734
735 if (vps->bo)
736 vmw_bo_unreference(&vps->bo);
737
738 drm_atomic_helper_plane_destroy_state(plane, state);
739}
740
741
742/**
743 * vmw_du_connector_duplicate_state - duplicate connector state
744 * @connector: DRM connector
745 *
746 * Allocates and returns a copy of the connector state (both common and
747 * vmw-specific) for the specified connector.
748 *
749 * Returns: The newly allocated connector state, or NULL on failure.
750 */
751struct drm_connector_state *
752vmw_du_connector_duplicate_state(struct drm_connector *connector)
753{
754 struct drm_connector_state *state;
755 struct vmw_connector_state *vcs;
756
757 if (WARN_ON(!connector->state))
758 return NULL;
759
760 vcs = kmemdup(connector->state, sizeof(*vcs), GFP_KERNEL);
761
762 if (!vcs)
763 return NULL;
764
765 state = &vcs->base;
766
767 __drm_atomic_helper_connector_duplicate_state(connector, state);
768
769 return state;
770}
771
772
773/**
774 * vmw_du_connector_reset - creates a blank vmw connector state
775 * @connector: DRM connector
776 *
777 * Resets the atomic state for @connector by freeing the state pointer (which
778 * might be NULL, e.g. at driver load time) and allocating a new empty state
779 * object.
780 */
781void vmw_du_connector_reset(struct drm_connector *connector)
782{
783 struct vmw_connector_state *vcs;
784
785
786 if (connector->state) {
787 __drm_atomic_helper_connector_destroy_state(connector->state);
788
789 kfree(vmw_connector_state_to_vcs(connector->state));
790 }
791
792 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
793
794 if (!vcs) {
795 DRM_ERROR("Cannot allocate vmw_connector_state\n");
796 return;
797 }
798
799 __drm_atomic_helper_connector_reset(connector, &vcs->base);
800}
801
802
803/**
804 * vmw_du_connector_destroy_state - destroy connector state
805 * @connector: DRM connector
806 * @state: state object to destroy
807 *
808 * Destroys the connector state (both common and vmw-specific) for the
809 * specified plane.
810 */
811void
812vmw_du_connector_destroy_state(struct drm_connector *connector,
813 struct drm_connector_state *state)
814{
815 drm_atomic_helper_connector_destroy_state(connector, state);
816}
817/*
818 * Generic framebuffer code
819 */
820
821/*
822 * Surface framebuffer code
823 */
824
825static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
826{
827 struct vmw_framebuffer_surface *vfbs =
828 vmw_framebuffer_to_vfbs(framebuffer);
829
830 drm_framebuffer_cleanup(framebuffer);
831 vmw_surface_unreference(&vfbs->surface);
832 if (vfbs->base.user_obj)
833 ttm_base_object_unref(&vfbs->base.user_obj);
834
835 kfree(vfbs);
836}
837
838/**
839 * vmw_kms_readback - Perform a readback from the screen system to
840 * a buffer-object backed framebuffer.
841 *
842 * @dev_priv: Pointer to the device private structure.
843 * @file_priv: Pointer to a struct drm_file identifying the caller.
844 * Must be set to NULL if @user_fence_rep is NULL.
845 * @vfb: Pointer to the buffer-object backed framebuffer.
846 * @user_fence_rep: User-space provided structure for fence information.
847 * Must be set to non-NULL if @file_priv is non-NULL.
848 * @vclips: Array of clip rects.
849 * @num_clips: Number of clip rects in @vclips.
850 *
851 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
852 * interrupted.
853 */
854int vmw_kms_readback(struct vmw_private *dev_priv,
855 struct drm_file *file_priv,
856 struct vmw_framebuffer *vfb,
857 struct drm_vmw_fence_rep __user *user_fence_rep,
858 struct drm_vmw_rect *vclips,
859 uint32_t num_clips)
860{
861 switch (dev_priv->active_display_unit) {
862 case vmw_du_screen_object:
863 return vmw_kms_sou_readback(dev_priv, file_priv, vfb,
864 user_fence_rep, vclips, num_clips,
865 NULL);
866 case vmw_du_screen_target:
867 return vmw_kms_stdu_dma(dev_priv, file_priv, vfb,
868 user_fence_rep, NULL, vclips, num_clips,
869 1, false, true, NULL);
870 default:
871 WARN_ONCE(true,
872 "Readback called with invalid display system.\n");
873}
874
875 return -ENOSYS;
876}
877
878
879static const struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
880 .destroy = vmw_framebuffer_surface_destroy,
881 .dirty = drm_atomic_helper_dirtyfb,
882};
883
884static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
885 struct vmw_surface *surface,
886 struct vmw_framebuffer **out,
887 const struct drm_mode_fb_cmd2
888 *mode_cmd,
889 bool is_bo_proxy)
890
891{
892 struct drm_device *dev = dev_priv->dev;
893 struct vmw_framebuffer_surface *vfbs;
894 enum SVGA3dSurfaceFormat format;
895 int ret;
896 struct drm_format_name_buf format_name;
897
898 /* 3D is only supported on HWv8 and newer hosts */
899 if (dev_priv->active_display_unit == vmw_du_legacy)
900 return -ENOSYS;
901
902 /*
903 * Sanity checks.
904 */
905
906 /* Surface must be marked as a scanout. */
907 if (unlikely(!surface->metadata.scanout))
908 return -EINVAL;
909
910 if (unlikely(surface->metadata.mip_levels[0] != 1 ||
911 surface->metadata.num_sizes != 1 ||
912 surface->metadata.base_size.width < mode_cmd->width ||
913 surface->metadata.base_size.height < mode_cmd->height ||
914 surface->metadata.base_size.depth != 1)) {
915 DRM_ERROR("Incompatible surface dimensions "
916 "for requested mode.\n");
917 return -EINVAL;
918 }
919
920 switch (mode_cmd->pixel_format) {
921 case DRM_FORMAT_ARGB8888:
922 format = SVGA3D_A8R8G8B8;
923 break;
924 case DRM_FORMAT_XRGB8888:
925 format = SVGA3D_X8R8G8B8;
926 break;
927 case DRM_FORMAT_RGB565:
928 format = SVGA3D_R5G6B5;
929 break;
930 case DRM_FORMAT_XRGB1555:
931 format = SVGA3D_A1R5G5B5;
932 break;
933 default:
934 DRM_ERROR("Invalid pixel format: %s\n",
935 drm_get_format_name(mode_cmd->pixel_format, &format_name));
936 return -EINVAL;
937 }
938
939 /*
940 * For DX, surface format validation is done when surface->scanout
941 * is set.
942 */
943 if (!has_sm4_context(dev_priv) && format != surface->metadata.format) {
944 DRM_ERROR("Invalid surface format for requested mode.\n");
945 return -EINVAL;
946 }
947
948 vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
949 if (!vfbs) {
950 ret = -ENOMEM;
951 goto out_err1;
952 }
953
954 drm_helper_mode_fill_fb_struct(dev, &vfbs->base.base, mode_cmd);
955 vfbs->surface = vmw_surface_reference(surface);
956 vfbs->base.user_handle = mode_cmd->handles[0];
957 vfbs->is_bo_proxy = is_bo_proxy;
958
959 *out = &vfbs->base;
960
961 ret = drm_framebuffer_init(dev, &vfbs->base.base,
962 &vmw_framebuffer_surface_funcs);
963 if (ret)
964 goto out_err2;
965
966 return 0;
967
968out_err2:
969 vmw_surface_unreference(&surface);
970 kfree(vfbs);
971out_err1:
972 return ret;
973}
974
975/*
976 * Buffer-object framebuffer code
977 */
978
979static void vmw_framebuffer_bo_destroy(struct drm_framebuffer *framebuffer)
980{
981 struct vmw_framebuffer_bo *vfbd =
982 vmw_framebuffer_to_vfbd(framebuffer);
983
984 drm_framebuffer_cleanup(framebuffer);
985 vmw_bo_unreference(&vfbd->buffer);
986 if (vfbd->base.user_obj)
987 ttm_base_object_unref(&vfbd->base.user_obj);
988
989 kfree(vfbd);
990}
991
992static int vmw_framebuffer_bo_dirty(struct drm_framebuffer *framebuffer,
993 struct drm_file *file_priv,
994 unsigned int flags, unsigned int color,
995 struct drm_clip_rect *clips,
996 unsigned int num_clips)
997{
998 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
999 struct vmw_framebuffer_bo *vfbd =
1000 vmw_framebuffer_to_vfbd(framebuffer);
1001 struct drm_clip_rect norect;
1002 int ret, increment = 1;
1003
1004 drm_modeset_lock_all(dev_priv->dev);
1005
1006 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
1007 if (unlikely(ret != 0)) {
1008 drm_modeset_unlock_all(dev_priv->dev);
1009 return ret;
1010 }
1011
1012 if (!num_clips) {
1013 num_clips = 1;
1014 clips = &norect;
1015 norect.x1 = norect.y1 = 0;
1016 norect.x2 = framebuffer->width;
1017 norect.y2 = framebuffer->height;
1018 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
1019 num_clips /= 2;
1020 increment = 2;
1021 }
1022
1023 switch (dev_priv->active_display_unit) {
1024 case vmw_du_legacy:
1025 ret = vmw_kms_ldu_do_bo_dirty(dev_priv, &vfbd->base, 0, 0,
1026 clips, num_clips, increment);
1027 break;
1028 default:
1029 ret = -EINVAL;
1030 WARN_ONCE(true, "Dirty called with invalid display system.\n");
1031 break;
1032 }
1033
1034 vmw_fifo_flush(dev_priv, false);
1035 ttm_read_unlock(&dev_priv->reservation_sem);
1036
1037 drm_modeset_unlock_all(dev_priv->dev);
1038
1039 return ret;
1040}
1041
1042static int vmw_framebuffer_bo_dirty_ext(struct drm_framebuffer *framebuffer,
1043 struct drm_file *file_priv,
1044 unsigned int flags, unsigned int color,
1045 struct drm_clip_rect *clips,
1046 unsigned int num_clips)
1047{
1048 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
1049
1050 if (dev_priv->active_display_unit == vmw_du_legacy)
1051 return vmw_framebuffer_bo_dirty(framebuffer, file_priv, flags,
1052 color, clips, num_clips);
1053
1054 return drm_atomic_helper_dirtyfb(framebuffer, file_priv, flags, color,
1055 clips, num_clips);
1056}
1057
1058static const struct drm_framebuffer_funcs vmw_framebuffer_bo_funcs = {
1059 .destroy = vmw_framebuffer_bo_destroy,
1060 .dirty = vmw_framebuffer_bo_dirty_ext,
1061};
1062
1063/**
1064 * Pin the bofer in a location suitable for access by the
1065 * display system.
1066 */
1067static int vmw_framebuffer_pin(struct vmw_framebuffer *vfb)
1068{
1069 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1070 struct vmw_buffer_object *buf;
1071 struct ttm_placement *placement;
1072 int ret;
1073
1074 buf = vfb->bo ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
1075 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
1076
1077 if (!buf)
1078 return 0;
1079
1080 switch (dev_priv->active_display_unit) {
1081 case vmw_du_legacy:
1082 vmw_overlay_pause_all(dev_priv);
1083 ret = vmw_bo_pin_in_start_of_vram(dev_priv, buf, false);
1084 vmw_overlay_resume_all(dev_priv);
1085 break;
1086 case vmw_du_screen_object:
1087 case vmw_du_screen_target:
1088 if (vfb->bo) {
1089 if (dev_priv->capabilities & SVGA_CAP_3D) {
1090 /*
1091 * Use surface DMA to get content to
1092 * sreen target surface.
1093 */
1094 placement = &vmw_vram_gmr_placement;
1095 } else {
1096 /* Use CPU blit. */
1097 placement = &vmw_sys_placement;
1098 }
1099 } else {
1100 /* Use surface / image update */
1101 placement = &vmw_mob_placement;
1102 }
1103
1104 return vmw_bo_pin_in_placement(dev_priv, buf, placement, false);
1105 default:
1106 return -EINVAL;
1107 }
1108
1109 return ret;
1110}
1111
1112static int vmw_framebuffer_unpin(struct vmw_framebuffer *vfb)
1113{
1114 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1115 struct vmw_buffer_object *buf;
1116
1117 buf = vfb->bo ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
1118 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
1119
1120 if (WARN_ON(!buf))
1121 return 0;
1122
1123 return vmw_bo_unpin(dev_priv, buf, false);
1124}
1125
1126/**
1127 * vmw_create_bo_proxy - create a proxy surface for the buffer object
1128 *
1129 * @dev: DRM device
1130 * @mode_cmd: parameters for the new surface
1131 * @bo_mob: MOB backing the buffer object
1132 * @srf_out: newly created surface
1133 *
1134 * When the content FB is a buffer object, we create a surface as a proxy to the
1135 * same buffer. This way we can do a surface copy rather than a surface DMA.
1136 * This is a more efficient approach
1137 *
1138 * RETURNS:
1139 * 0 on success, error code otherwise
1140 */
1141static int vmw_create_bo_proxy(struct drm_device *dev,
1142 const struct drm_mode_fb_cmd2 *mode_cmd,
1143 struct vmw_buffer_object *bo_mob,
1144 struct vmw_surface **srf_out)
1145{
1146 struct vmw_surface_metadata metadata = {0};
1147 uint32_t format;
1148 struct vmw_resource *res;
1149 unsigned int bytes_pp;
1150 struct drm_format_name_buf format_name;
1151 int ret;
1152
1153 switch (mode_cmd->pixel_format) {
1154 case DRM_FORMAT_ARGB8888:
1155 case DRM_FORMAT_XRGB8888:
1156 format = SVGA3D_X8R8G8B8;
1157 bytes_pp = 4;
1158 break;
1159
1160 case DRM_FORMAT_RGB565:
1161 case DRM_FORMAT_XRGB1555:
1162 format = SVGA3D_R5G6B5;
1163 bytes_pp = 2;
1164 break;
1165
1166 case 8:
1167 format = SVGA3D_P8;
1168 bytes_pp = 1;
1169 break;
1170
1171 default:
1172 DRM_ERROR("Invalid framebuffer format %s\n",
1173 drm_get_format_name(mode_cmd->pixel_format, &format_name));
1174 return -EINVAL;
1175 }
1176
1177 metadata.format = format;
1178 metadata.mip_levels[0] = 1;
1179 metadata.num_sizes = 1;
1180 metadata.base_size.width = mode_cmd->pitches[0] / bytes_pp;
1181 metadata.base_size.height = mode_cmd->height;
1182 metadata.base_size.depth = 1;
1183 metadata.scanout = true;
1184
1185 ret = vmw_gb_surface_define(vmw_priv(dev), 0, &metadata, srf_out);
1186 if (ret) {
1187 DRM_ERROR("Failed to allocate proxy content buffer\n");
1188 return ret;
1189 }
1190
1191 res = &(*srf_out)->res;
1192
1193 /* Reserve and switch the backing mob. */
1194 mutex_lock(&res->dev_priv->cmdbuf_mutex);
1195 (void) vmw_resource_reserve(res, false, true);
1196 vmw_bo_unreference(&res->backup);
1197 res->backup = vmw_bo_reference(bo_mob);
1198 res->backup_offset = 0;
1199 vmw_resource_unreserve(res, false, false, false, NULL, 0);
1200 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
1201
1202 return 0;
1203}
1204
1205
1206
1207static int vmw_kms_new_framebuffer_bo(struct vmw_private *dev_priv,
1208 struct vmw_buffer_object *bo,
1209 struct vmw_framebuffer **out,
1210 const struct drm_mode_fb_cmd2
1211 *mode_cmd)
1212
1213{
1214 struct drm_device *dev = dev_priv->dev;
1215 struct vmw_framebuffer_bo *vfbd;
1216 unsigned int requested_size;
1217 struct drm_format_name_buf format_name;
1218 int ret;
1219
1220 requested_size = mode_cmd->height * mode_cmd->pitches[0];
1221 if (unlikely(requested_size > bo->base.num_pages * PAGE_SIZE)) {
1222 DRM_ERROR("Screen buffer object size is too small "
1223 "for requested mode.\n");
1224 return -EINVAL;
1225 }
1226
1227 /* Limited framebuffer color depth support for screen objects */
1228 if (dev_priv->active_display_unit == vmw_du_screen_object) {
1229 switch (mode_cmd->pixel_format) {
1230 case DRM_FORMAT_XRGB8888:
1231 case DRM_FORMAT_ARGB8888:
1232 break;
1233 case DRM_FORMAT_XRGB1555:
1234 case DRM_FORMAT_RGB565:
1235 break;
1236 default:
1237 DRM_ERROR("Invalid pixel format: %s\n",
1238 drm_get_format_name(mode_cmd->pixel_format, &format_name));
1239 return -EINVAL;
1240 }
1241 }
1242
1243 vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
1244 if (!vfbd) {
1245 ret = -ENOMEM;
1246 goto out_err1;
1247 }
1248
1249 drm_helper_mode_fill_fb_struct(dev, &vfbd->base.base, mode_cmd);
1250 vfbd->base.bo = true;
1251 vfbd->buffer = vmw_bo_reference(bo);
1252 vfbd->base.user_handle = mode_cmd->handles[0];
1253 *out = &vfbd->base;
1254
1255 ret = drm_framebuffer_init(dev, &vfbd->base.base,
1256 &vmw_framebuffer_bo_funcs);
1257 if (ret)
1258 goto out_err2;
1259
1260 return 0;
1261
1262out_err2:
1263 vmw_bo_unreference(&bo);
1264 kfree(vfbd);
1265out_err1:
1266 return ret;
1267}
1268
1269
1270/**
1271 * vmw_kms_srf_ok - check if a surface can be created
1272 *
1273 * @width: requested width
1274 * @height: requested height
1275 *
1276 * Surfaces need to be less than texture size
1277 */
1278static bool
1279vmw_kms_srf_ok(struct vmw_private *dev_priv, uint32_t width, uint32_t height)
1280{
1281 if (width > dev_priv->texture_max_width ||
1282 height > dev_priv->texture_max_height)
1283 return false;
1284
1285 return true;
1286}
1287
1288/**
1289 * vmw_kms_new_framebuffer - Create a new framebuffer.
1290 *
1291 * @dev_priv: Pointer to device private struct.
1292 * @bo: Pointer to buffer object to wrap the kms framebuffer around.
1293 * Either @bo or @surface must be NULL.
1294 * @surface: Pointer to a surface to wrap the kms framebuffer around.
1295 * Either @bo or @surface must be NULL.
1296 * @only_2d: No presents will occur to this buffer object based framebuffer.
1297 * This helps the code to do some important optimizations.
1298 * @mode_cmd: Frame-buffer metadata.
1299 */
1300struct vmw_framebuffer *
1301vmw_kms_new_framebuffer(struct vmw_private *dev_priv,
1302 struct vmw_buffer_object *bo,
1303 struct vmw_surface *surface,
1304 bool only_2d,
1305 const struct drm_mode_fb_cmd2 *mode_cmd)
1306{
1307 struct vmw_framebuffer *vfb = NULL;
1308 bool is_bo_proxy = false;
1309 int ret;
1310
1311 /*
1312 * We cannot use the SurfaceDMA command in an non-accelerated VM,
1313 * therefore, wrap the buffer object in a surface so we can use the
1314 * SurfaceCopy command.
1315 */
1316 if (vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height) &&
1317 bo && only_2d &&
1318 mode_cmd->width > 64 && /* Don't create a proxy for cursor */
1319 dev_priv->active_display_unit == vmw_du_screen_target) {
1320 ret = vmw_create_bo_proxy(dev_priv->dev, mode_cmd,
1321 bo, &surface);
1322 if (ret)
1323 return ERR_PTR(ret);
1324
1325 is_bo_proxy = true;
1326 }
1327
1328 /* Create the new framebuffer depending one what we have */
1329 if (surface) {
1330 ret = vmw_kms_new_framebuffer_surface(dev_priv, surface, &vfb,
1331 mode_cmd,
1332 is_bo_proxy);
1333
1334 /*
1335 * vmw_create_bo_proxy() adds a reference that is no longer
1336 * needed
1337 */
1338 if (is_bo_proxy)
1339 vmw_surface_unreference(&surface);
1340 } else if (bo) {
1341 ret = vmw_kms_new_framebuffer_bo(dev_priv, bo, &vfb,
1342 mode_cmd);
1343 } else {
1344 BUG();
1345 }
1346
1347 if (ret)
1348 return ERR_PTR(ret);
1349
1350 vfb->pin = vmw_framebuffer_pin;
1351 vfb->unpin = vmw_framebuffer_unpin;
1352
1353 return vfb;
1354}
1355
1356/*
1357 * Generic Kernel modesetting functions
1358 */
1359
1360static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
1361 struct drm_file *file_priv,
1362 const struct drm_mode_fb_cmd2 *mode_cmd)
1363{
1364 struct vmw_private *dev_priv = vmw_priv(dev);
1365 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1366 struct vmw_framebuffer *vfb = NULL;
1367 struct vmw_surface *surface = NULL;
1368 struct vmw_buffer_object *bo = NULL;
1369 struct ttm_base_object *user_obj;
1370 int ret;
1371
1372 /*
1373 * Take a reference on the user object of the resource
1374 * backing the kms fb. This ensures that user-space handle
1375 * lookups on that resource will always work as long as
1376 * it's registered with a kms framebuffer. This is important,
1377 * since vmw_execbuf_process identifies resources in the
1378 * command stream using user-space handles.
1379 */
1380
1381 user_obj = ttm_base_object_lookup(tfile, mode_cmd->handles[0]);
1382 if (unlikely(user_obj == NULL)) {
1383 DRM_ERROR("Could not locate requested kms frame buffer.\n");
1384 return ERR_PTR(-ENOENT);
1385 }
1386
1387 /**
1388 * End conditioned code.
1389 */
1390
1391 /* returns either a bo or surface */
1392 ret = vmw_user_lookup_handle(dev_priv, tfile,
1393 mode_cmd->handles[0],
1394 &surface, &bo);
1395 if (ret)
1396 goto err_out;
1397
1398
1399 if (!bo &&
1400 !vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height)) {
1401 DRM_ERROR("Surface size cannot exceed %dx%d",
1402 dev_priv->texture_max_width,
1403 dev_priv->texture_max_height);
1404 goto err_out;
1405 }
1406
1407
1408 vfb = vmw_kms_new_framebuffer(dev_priv, bo, surface,
1409 !(dev_priv->capabilities & SVGA_CAP_3D),
1410 mode_cmd);
1411 if (IS_ERR(vfb)) {
1412 ret = PTR_ERR(vfb);
1413 goto err_out;
1414 }
1415
1416err_out:
1417 /* vmw_user_lookup_handle takes one ref so does new_fb */
1418 if (bo)
1419 vmw_bo_unreference(&bo);
1420 if (surface)
1421 vmw_surface_unreference(&surface);
1422
1423 if (ret) {
1424 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1425 ttm_base_object_unref(&user_obj);
1426 return ERR_PTR(ret);
1427 } else
1428 vfb->user_obj = user_obj;
1429
1430 return &vfb->base;
1431}
1432
1433/**
1434 * vmw_kms_check_display_memory - Validates display memory required for a
1435 * topology
1436 * @dev: DRM device
1437 * @num_rects: number of drm_rect in rects
1438 * @rects: array of drm_rect representing the topology to validate indexed by
1439 * crtc index.
1440 *
1441 * Returns:
1442 * 0 on success otherwise negative error code
1443 */
1444static int vmw_kms_check_display_memory(struct drm_device *dev,
1445 uint32_t num_rects,
1446 struct drm_rect *rects)
1447{
1448 struct vmw_private *dev_priv = vmw_priv(dev);
1449 struct drm_rect bounding_box = {0};
1450 u64 total_pixels = 0, pixel_mem, bb_mem;
1451 int i;
1452
1453 for (i = 0; i < num_rects; i++) {
1454 /*
1455 * For STDU only individual screen (screen target) is limited by
1456 * SCREENTARGET_MAX_WIDTH/HEIGHT registers.
1457 */
1458 if (dev_priv->active_display_unit == vmw_du_screen_target &&
1459 (drm_rect_width(&rects[i]) > dev_priv->stdu_max_width ||
1460 drm_rect_height(&rects[i]) > dev_priv->stdu_max_height)) {
1461 VMW_DEBUG_KMS("Screen size not supported.\n");
1462 return -EINVAL;
1463 }
1464
1465 /* Bounding box upper left is at (0,0). */
1466 if (rects[i].x2 > bounding_box.x2)
1467 bounding_box.x2 = rects[i].x2;
1468
1469 if (rects[i].y2 > bounding_box.y2)
1470 bounding_box.y2 = rects[i].y2;
1471
1472 total_pixels += (u64) drm_rect_width(&rects[i]) *
1473 (u64) drm_rect_height(&rects[i]);
1474 }
1475
1476 /* Virtual svga device primary limits are always in 32-bpp. */
1477 pixel_mem = total_pixels * 4;
1478
1479 /*
1480 * For HV10 and below prim_bb_mem is vram size. When
1481 * SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM is not present vram size is
1482 * limit on primary bounding box
1483 */
1484 if (pixel_mem > dev_priv->prim_bb_mem) {
1485 VMW_DEBUG_KMS("Combined output size too large.\n");
1486 return -EINVAL;
1487 }
1488
1489 /* SVGA_CAP_NO_BB_RESTRICTION is available for STDU only. */
1490 if (dev_priv->active_display_unit != vmw_du_screen_target ||
1491 !(dev_priv->capabilities & SVGA_CAP_NO_BB_RESTRICTION)) {
1492 bb_mem = (u64) bounding_box.x2 * bounding_box.y2 * 4;
1493
1494 if (bb_mem > dev_priv->prim_bb_mem) {
1495 VMW_DEBUG_KMS("Topology is beyond supported limits.\n");
1496 return -EINVAL;
1497 }
1498 }
1499
1500 return 0;
1501}
1502
1503/**
1504 * vmw_crtc_state_and_lock - Return new or current crtc state with locked
1505 * crtc mutex
1506 * @state: The atomic state pointer containing the new atomic state
1507 * @crtc: The crtc
1508 *
1509 * This function returns the new crtc state if it's part of the state update.
1510 * Otherwise returns the current crtc state. It also makes sure that the
1511 * crtc mutex is locked.
1512 *
1513 * Returns: A valid crtc state pointer or NULL. It may also return a
1514 * pointer error, in particular -EDEADLK if locking needs to be rerun.
1515 */
1516static struct drm_crtc_state *
1517vmw_crtc_state_and_lock(struct drm_atomic_state *state, struct drm_crtc *crtc)
1518{
1519 struct drm_crtc_state *crtc_state;
1520
1521 crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
1522 if (crtc_state) {
1523 lockdep_assert_held(&crtc->mutex.mutex.base);
1524 } else {
1525 int ret = drm_modeset_lock(&crtc->mutex, state->acquire_ctx);
1526
1527 if (ret != 0 && ret != -EALREADY)
1528 return ERR_PTR(ret);
1529
1530 crtc_state = crtc->state;
1531 }
1532
1533 return crtc_state;
1534}
1535
1536/**
1537 * vmw_kms_check_implicit - Verify that all implicit display units scan out
1538 * from the same fb after the new state is committed.
1539 * @dev: The drm_device.
1540 * @state: The new state to be checked.
1541 *
1542 * Returns:
1543 * Zero on success,
1544 * -EINVAL on invalid state,
1545 * -EDEADLK if modeset locking needs to be rerun.
1546 */
1547static int vmw_kms_check_implicit(struct drm_device *dev,
1548 struct drm_atomic_state *state)
1549{
1550 struct drm_framebuffer *implicit_fb = NULL;
1551 struct drm_crtc *crtc;
1552 struct drm_crtc_state *crtc_state;
1553 struct drm_plane_state *plane_state;
1554
1555 drm_for_each_crtc(crtc, dev) {
1556 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1557
1558 if (!du->is_implicit)
1559 continue;
1560
1561 crtc_state = vmw_crtc_state_and_lock(state, crtc);
1562 if (IS_ERR(crtc_state))
1563 return PTR_ERR(crtc_state);
1564
1565 if (!crtc_state || !crtc_state->enable)
1566 continue;
1567
1568 /*
1569 * Can't move primary planes across crtcs, so this is OK.
1570 * It also means we don't need to take the plane mutex.
1571 */
1572 plane_state = du->primary.state;
1573 if (plane_state->crtc != crtc)
1574 continue;
1575
1576 if (!implicit_fb)
1577 implicit_fb = plane_state->fb;
1578 else if (implicit_fb != plane_state->fb)
1579 return -EINVAL;
1580 }
1581
1582 return 0;
1583}
1584
1585/**
1586 * vmw_kms_check_topology - Validates topology in drm_atomic_state
1587 * @dev: DRM device
1588 * @state: the driver state object
1589 *
1590 * Returns:
1591 * 0 on success otherwise negative error code
1592 */
1593static int vmw_kms_check_topology(struct drm_device *dev,
1594 struct drm_atomic_state *state)
1595{
1596 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
1597 struct drm_rect *rects;
1598 struct drm_crtc *crtc;
1599 uint32_t i;
1600 int ret = 0;
1601
1602 rects = kcalloc(dev->mode_config.num_crtc, sizeof(struct drm_rect),
1603 GFP_KERNEL);
1604 if (!rects)
1605 return -ENOMEM;
1606
1607 drm_for_each_crtc(crtc, dev) {
1608 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1609 struct drm_crtc_state *crtc_state;
1610
1611 i = drm_crtc_index(crtc);
1612
1613 crtc_state = vmw_crtc_state_and_lock(state, crtc);
1614 if (IS_ERR(crtc_state)) {
1615 ret = PTR_ERR(crtc_state);
1616 goto clean;
1617 }
1618
1619 if (!crtc_state)
1620 continue;
1621
1622 if (crtc_state->enable) {
1623 rects[i].x1 = du->gui_x;
1624 rects[i].y1 = du->gui_y;
1625 rects[i].x2 = du->gui_x + crtc_state->mode.hdisplay;
1626 rects[i].y2 = du->gui_y + crtc_state->mode.vdisplay;
1627 } else {
1628 rects[i].x1 = 0;
1629 rects[i].y1 = 0;
1630 rects[i].x2 = 0;
1631 rects[i].y2 = 0;
1632 }
1633 }
1634
1635 /* Determine change to topology due to new atomic state */
1636 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
1637 new_crtc_state, i) {
1638 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1639 struct drm_connector *connector;
1640 struct drm_connector_state *conn_state;
1641 struct vmw_connector_state *vmw_conn_state;
1642
1643 if (!du->pref_active && new_crtc_state->enable) {
1644 VMW_DEBUG_KMS("Enabling a disabled display unit\n");
1645 ret = -EINVAL;
1646 goto clean;
1647 }
1648
1649 /*
1650 * For vmwgfx each crtc has only one connector attached and it
1651 * is not changed so don't really need to check the
1652 * crtc->connector_mask and iterate over it.
1653 */
1654 connector = &du->connector;
1655 conn_state = drm_atomic_get_connector_state(state, connector);
1656 if (IS_ERR(conn_state)) {
1657 ret = PTR_ERR(conn_state);
1658 goto clean;
1659 }
1660
1661 vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
1662 vmw_conn_state->gui_x = du->gui_x;
1663 vmw_conn_state->gui_y = du->gui_y;
1664 }
1665
1666 ret = vmw_kms_check_display_memory(dev, dev->mode_config.num_crtc,
1667 rects);
1668
1669clean:
1670 kfree(rects);
1671 return ret;
1672}
1673
1674/**
1675 * vmw_kms_atomic_check_modeset- validate state object for modeset changes
1676 *
1677 * @dev: DRM device
1678 * @state: the driver state object
1679 *
1680 * This is a simple wrapper around drm_atomic_helper_check_modeset() for
1681 * us to assign a value to mode->crtc_clock so that
1682 * drm_calc_timestamping_constants() won't throw an error message
1683 *
1684 * Returns:
1685 * Zero for success or -errno
1686 */
1687static int
1688vmw_kms_atomic_check_modeset(struct drm_device *dev,
1689 struct drm_atomic_state *state)
1690{
1691 struct drm_crtc *crtc;
1692 struct drm_crtc_state *crtc_state;
1693 bool need_modeset = false;
1694 int i, ret;
1695
1696 ret = drm_atomic_helper_check(dev, state);
1697 if (ret)
1698 return ret;
1699
1700 ret = vmw_kms_check_implicit(dev, state);
1701 if (ret) {
1702 VMW_DEBUG_KMS("Invalid implicit state\n");
1703 return ret;
1704 }
1705
1706 for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
1707 if (drm_atomic_crtc_needs_modeset(crtc_state))
1708 need_modeset = true;
1709 }
1710
1711 if (need_modeset)
1712 return vmw_kms_check_topology(dev, state);
1713
1714 return ret;
1715}
1716
1717static const struct drm_mode_config_funcs vmw_kms_funcs = {
1718 .fb_create = vmw_kms_fb_create,
1719 .atomic_check = vmw_kms_atomic_check_modeset,
1720 .atomic_commit = drm_atomic_helper_commit,
1721};
1722
1723static int vmw_kms_generic_present(struct vmw_private *dev_priv,
1724 struct drm_file *file_priv,
1725 struct vmw_framebuffer *vfb,
1726 struct vmw_surface *surface,
1727 uint32_t sid,
1728 int32_t destX, int32_t destY,
1729 struct drm_vmw_rect *clips,
1730 uint32_t num_clips)
1731{
1732 return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips,
1733 &surface->res, destX, destY,
1734 num_clips, 1, NULL, NULL);
1735}
1736
1737
1738int vmw_kms_present(struct vmw_private *dev_priv,
1739 struct drm_file *file_priv,
1740 struct vmw_framebuffer *vfb,
1741 struct vmw_surface *surface,
1742 uint32_t sid,
1743 int32_t destX, int32_t destY,
1744 struct drm_vmw_rect *clips,
1745 uint32_t num_clips)
1746{
1747 int ret;
1748
1749 switch (dev_priv->active_display_unit) {
1750 case vmw_du_screen_target:
1751 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips,
1752 &surface->res, destX, destY,
1753 num_clips, 1, NULL, NULL);
1754 break;
1755 case vmw_du_screen_object:
1756 ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface,
1757 sid, destX, destY, clips,
1758 num_clips);
1759 break;
1760 default:
1761 WARN_ONCE(true,
1762 "Present called with invalid display system.\n");
1763 ret = -ENOSYS;
1764 break;
1765 }
1766 if (ret)
1767 return ret;
1768
1769 vmw_fifo_flush(dev_priv, false);
1770
1771 return 0;
1772}
1773
1774static void
1775vmw_kms_create_hotplug_mode_update_property(struct vmw_private *dev_priv)
1776{
1777 if (dev_priv->hotplug_mode_update_property)
1778 return;
1779
1780 dev_priv->hotplug_mode_update_property =
1781 drm_property_create_range(dev_priv->dev,
1782 DRM_MODE_PROP_IMMUTABLE,
1783 "hotplug_mode_update", 0, 1);
1784
1785 if (!dev_priv->hotplug_mode_update_property)
1786 return;
1787
1788}
1789
1790int vmw_kms_init(struct vmw_private *dev_priv)
1791{
1792 struct drm_device *dev = dev_priv->dev;
1793 int ret;
1794
1795 drm_mode_config_init(dev);
1796 dev->mode_config.funcs = &vmw_kms_funcs;
1797 dev->mode_config.min_width = 1;
1798 dev->mode_config.min_height = 1;
1799 dev->mode_config.max_width = dev_priv->texture_max_width;
1800 dev->mode_config.max_height = dev_priv->texture_max_height;
1801
1802 drm_mode_create_suggested_offset_properties(dev);
1803 vmw_kms_create_hotplug_mode_update_property(dev_priv);
1804
1805 ret = vmw_kms_stdu_init_display(dev_priv);
1806 if (ret) {
1807 ret = vmw_kms_sou_init_display(dev_priv);
1808 if (ret) /* Fallback */
1809 ret = vmw_kms_ldu_init_display(dev_priv);
1810 }
1811
1812 return ret;
1813}
1814
1815int vmw_kms_close(struct vmw_private *dev_priv)
1816{
1817 int ret = 0;
1818
1819 /*
1820 * Docs says we should take the lock before calling this function
1821 * but since it destroys encoders and our destructor calls
1822 * drm_encoder_cleanup which takes the lock we deadlock.
1823 */
1824 drm_mode_config_cleanup(dev_priv->dev);
1825 if (dev_priv->active_display_unit == vmw_du_legacy)
1826 ret = vmw_kms_ldu_close_display(dev_priv);
1827
1828 return ret;
1829}
1830
1831int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1832 struct drm_file *file_priv)
1833{
1834 struct drm_vmw_cursor_bypass_arg *arg = data;
1835 struct vmw_display_unit *du;
1836 struct drm_crtc *crtc;
1837 int ret = 0;
1838
1839
1840 mutex_lock(&dev->mode_config.mutex);
1841 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1842
1843 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1844 du = vmw_crtc_to_du(crtc);
1845 du->hotspot_x = arg->xhot;
1846 du->hotspot_y = arg->yhot;
1847 }
1848
1849 mutex_unlock(&dev->mode_config.mutex);
1850 return 0;
1851 }
1852
1853 crtc = drm_crtc_find(dev, file_priv, arg->crtc_id);
1854 if (!crtc) {
1855 ret = -ENOENT;
1856 goto out;
1857 }
1858
1859 du = vmw_crtc_to_du(crtc);
1860
1861 du->hotspot_x = arg->xhot;
1862 du->hotspot_y = arg->yhot;
1863
1864out:
1865 mutex_unlock(&dev->mode_config.mutex);
1866
1867 return ret;
1868}
1869
1870int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1871 unsigned width, unsigned height, unsigned pitch,
1872 unsigned bpp, unsigned depth)
1873{
1874 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1875 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1876 else if (vmw_fifo_have_pitchlock(vmw_priv))
1877 vmw_mmio_write(pitch, vmw_priv->mmio_virt +
1878 SVGA_FIFO_PITCHLOCK);
1879 vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1880 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1881 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1882
1883 if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1884 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1885 depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1886 return -EINVAL;
1887 }
1888
1889 return 0;
1890}
1891
1892bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1893 uint32_t pitch,
1894 uint32_t height)
1895{
1896 return ((u64) pitch * (u64) height) < (u64)
1897 ((dev_priv->active_display_unit == vmw_du_screen_target) ?
1898 dev_priv->prim_bb_mem : dev_priv->vram_size);
1899}
1900
1901
1902/**
1903 * Function called by DRM code called with vbl_lock held.
1904 */
1905u32 vmw_get_vblank_counter(struct drm_crtc *crtc)
1906{
1907 return 0;
1908}
1909
1910/**
1911 * Function called by DRM code called with vbl_lock held.
1912 */
1913int vmw_enable_vblank(struct drm_crtc *crtc)
1914{
1915 return -EINVAL;
1916}
1917
1918/**
1919 * Function called by DRM code called with vbl_lock held.
1920 */
1921void vmw_disable_vblank(struct drm_crtc *crtc)
1922{
1923}
1924
1925/**
1926 * vmw_du_update_layout - Update the display unit with topology from resolution
1927 * plugin and generate DRM uevent
1928 * @dev_priv: device private
1929 * @num_rects: number of drm_rect in rects
1930 * @rects: toplogy to update
1931 */
1932static int vmw_du_update_layout(struct vmw_private *dev_priv,
1933 unsigned int num_rects, struct drm_rect *rects)
1934{
1935 struct drm_device *dev = dev_priv->dev;
1936 struct vmw_display_unit *du;
1937 struct drm_connector *con;
1938 struct drm_connector_list_iter conn_iter;
1939 struct drm_modeset_acquire_ctx ctx;
1940 struct drm_crtc *crtc;
1941 int ret;
1942
1943 /* Currently gui_x/y is protected with the crtc mutex */
1944 mutex_lock(&dev->mode_config.mutex);
1945 drm_modeset_acquire_init(&ctx, 0);
1946retry:
1947 drm_for_each_crtc(crtc, dev) {
1948 ret = drm_modeset_lock(&crtc->mutex, &ctx);
1949 if (ret < 0) {
1950 if (ret == -EDEADLK) {
1951 drm_modeset_backoff(&ctx);
1952 goto retry;
1953 }
1954 goto out_fini;
1955 }
1956 }
1957
1958 drm_connector_list_iter_begin(dev, &conn_iter);
1959 drm_for_each_connector_iter(con, &conn_iter) {
1960 du = vmw_connector_to_du(con);
1961 if (num_rects > du->unit) {
1962 du->pref_width = drm_rect_width(&rects[du->unit]);
1963 du->pref_height = drm_rect_height(&rects[du->unit]);
1964 du->pref_active = true;
1965 du->gui_x = rects[du->unit].x1;
1966 du->gui_y = rects[du->unit].y1;
1967 } else {
1968 du->pref_width = 800;
1969 du->pref_height = 600;
1970 du->pref_active = false;
1971 du->gui_x = 0;
1972 du->gui_y = 0;
1973 }
1974 }
1975 drm_connector_list_iter_end(&conn_iter);
1976
1977 list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1978 du = vmw_connector_to_du(con);
1979 if (num_rects > du->unit) {
1980 drm_object_property_set_value
1981 (&con->base, dev->mode_config.suggested_x_property,
1982 du->gui_x);
1983 drm_object_property_set_value
1984 (&con->base, dev->mode_config.suggested_y_property,
1985 du->gui_y);
1986 } else {
1987 drm_object_property_set_value
1988 (&con->base, dev->mode_config.suggested_x_property,
1989 0);
1990 drm_object_property_set_value
1991 (&con->base, dev->mode_config.suggested_y_property,
1992 0);
1993 }
1994 con->status = vmw_du_connector_detect(con, true);
1995 }
1996
1997 drm_sysfs_hotplug_event(dev);
1998out_fini:
1999 drm_modeset_drop_locks(&ctx);
2000 drm_modeset_acquire_fini(&ctx);
2001 mutex_unlock(&dev->mode_config.mutex);
2002
2003 return 0;
2004}
2005
2006int vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
2007 u16 *r, u16 *g, u16 *b,
2008 uint32_t size,
2009 struct drm_modeset_acquire_ctx *ctx)
2010{
2011 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
2012 int i;
2013
2014 for (i = 0; i < size; i++) {
2015 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
2016 r[i], g[i], b[i]);
2017 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
2018 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
2019 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
2020 }
2021
2022 return 0;
2023}
2024
2025int vmw_du_connector_dpms(struct drm_connector *connector, int mode)
2026{
2027 return 0;
2028}
2029
2030enum drm_connector_status
2031vmw_du_connector_detect(struct drm_connector *connector, bool force)
2032{
2033 uint32_t num_displays;
2034 struct drm_device *dev = connector->dev;
2035 struct vmw_private *dev_priv = vmw_priv(dev);
2036 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2037
2038 num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
2039
2040 return ((vmw_connector_to_du(connector)->unit < num_displays &&
2041 du->pref_active) ?
2042 connector_status_connected : connector_status_disconnected);
2043}
2044
2045static struct drm_display_mode vmw_kms_connector_builtin[] = {
2046 /* 640x480@60Hz */
2047 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
2048 752, 800, 0, 480, 489, 492, 525, 0,
2049 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
2050 /* 800x600@60Hz */
2051 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
2052 968, 1056, 0, 600, 601, 605, 628, 0,
2053 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2054 /* 1024x768@60Hz */
2055 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
2056 1184, 1344, 0, 768, 771, 777, 806, 0,
2057 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
2058 /* 1152x864@75Hz */
2059 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
2060 1344, 1600, 0, 864, 865, 868, 900, 0,
2061 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2062 /* 1280x768@60Hz */
2063 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
2064 1472, 1664, 0, 768, 771, 778, 798, 0,
2065 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2066 /* 1280x800@60Hz */
2067 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
2068 1480, 1680, 0, 800, 803, 809, 831, 0,
2069 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
2070 /* 1280x960@60Hz */
2071 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
2072 1488, 1800, 0, 960, 961, 964, 1000, 0,
2073 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2074 /* 1280x1024@60Hz */
2075 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
2076 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
2077 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2078 /* 1360x768@60Hz */
2079 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
2080 1536, 1792, 0, 768, 771, 777, 795, 0,
2081 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2082 /* 1440x1050@60Hz */
2083 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
2084 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
2085 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2086 /* 1440x900@60Hz */
2087 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
2088 1672, 1904, 0, 900, 903, 909, 934, 0,
2089 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2090 /* 1600x1200@60Hz */
2091 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
2092 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
2093 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2094 /* 1680x1050@60Hz */
2095 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
2096 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
2097 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2098 /* 1792x1344@60Hz */
2099 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
2100 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
2101 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2102 /* 1853x1392@60Hz */
2103 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
2104 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
2105 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2106 /* 1920x1200@60Hz */
2107 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
2108 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
2109 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2110 /* 1920x1440@60Hz */
2111 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
2112 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
2113 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2114 /* 2560x1600@60Hz */
2115 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
2116 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
2117 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2118 /* Terminate */
2119 { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
2120};
2121
2122/**
2123 * vmw_guess_mode_timing - Provide fake timings for a
2124 * 60Hz vrefresh mode.
2125 *
2126 * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
2127 * members filled in.
2128 */
2129void vmw_guess_mode_timing(struct drm_display_mode *mode)
2130{
2131 mode->hsync_start = mode->hdisplay + 50;
2132 mode->hsync_end = mode->hsync_start + 50;
2133 mode->htotal = mode->hsync_end + 50;
2134
2135 mode->vsync_start = mode->vdisplay + 50;
2136 mode->vsync_end = mode->vsync_start + 50;
2137 mode->vtotal = mode->vsync_end + 50;
2138
2139 mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
2140}
2141
2142
2143int vmw_du_connector_fill_modes(struct drm_connector *connector,
2144 uint32_t max_width, uint32_t max_height)
2145{
2146 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2147 struct drm_device *dev = connector->dev;
2148 struct vmw_private *dev_priv = vmw_priv(dev);
2149 struct drm_display_mode *mode = NULL;
2150 struct drm_display_mode *bmode;
2151 struct drm_display_mode prefmode = { DRM_MODE("preferred",
2152 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
2153 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2154 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
2155 };
2156 int i;
2157 u32 assumed_bpp = 4;
2158
2159 if (dev_priv->assume_16bpp)
2160 assumed_bpp = 2;
2161
2162 max_width = min(max_width, dev_priv->texture_max_width);
2163 max_height = min(max_height, dev_priv->texture_max_height);
2164
2165 /*
2166 * For STDU extra limit for a mode on SVGA_REG_SCREENTARGET_MAX_WIDTH/
2167 * HEIGHT registers.
2168 */
2169 if (dev_priv->active_display_unit == vmw_du_screen_target) {
2170 max_width = min(max_width, dev_priv->stdu_max_width);
2171 max_height = min(max_height, dev_priv->stdu_max_height);
2172 }
2173
2174 /* Add preferred mode */
2175 mode = drm_mode_duplicate(dev, &prefmode);
2176 if (!mode)
2177 return 0;
2178 mode->hdisplay = du->pref_width;
2179 mode->vdisplay = du->pref_height;
2180 vmw_guess_mode_timing(mode);
2181
2182 if (vmw_kms_validate_mode_vram(dev_priv,
2183 mode->hdisplay * assumed_bpp,
2184 mode->vdisplay)) {
2185 drm_mode_probed_add(connector, mode);
2186 } else {
2187 drm_mode_destroy(dev, mode);
2188 mode = NULL;
2189 }
2190
2191 if (du->pref_mode) {
2192 list_del_init(&du->pref_mode->head);
2193 drm_mode_destroy(dev, du->pref_mode);
2194 }
2195
2196 /* mode might be null here, this is intended */
2197 du->pref_mode = mode;
2198
2199 for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
2200 bmode = &vmw_kms_connector_builtin[i];
2201 if (bmode->hdisplay > max_width ||
2202 bmode->vdisplay > max_height)
2203 continue;
2204
2205 if (!vmw_kms_validate_mode_vram(dev_priv,
2206 bmode->hdisplay * assumed_bpp,
2207 bmode->vdisplay))
2208 continue;
2209
2210 mode = drm_mode_duplicate(dev, bmode);
2211 if (!mode)
2212 return 0;
2213
2214 drm_mode_probed_add(connector, mode);
2215 }
2216
2217 drm_connector_list_update(connector);
2218 /* Move the prefered mode first, help apps pick the right mode. */
2219 drm_mode_sort(&connector->modes);
2220
2221 return 1;
2222}
2223
2224/**
2225 * vmw_kms_update_layout_ioctl - Handler for DRM_VMW_UPDATE_LAYOUT ioctl
2226 * @dev: drm device for the ioctl
2227 * @data: data pointer for the ioctl
2228 * @file_priv: drm file for the ioctl call
2229 *
2230 * Update preferred topology of display unit as per ioctl request. The topology
2231 * is expressed as array of drm_vmw_rect.
2232 * e.g.
2233 * [0 0 640 480] [640 0 800 600] [0 480 640 480]
2234 *
2235 * NOTE:
2236 * The x and y offset (upper left) in drm_vmw_rect cannot be less than 0. Beside
2237 * device limit on topology, x + w and y + h (lower right) cannot be greater
2238 * than INT_MAX. So topology beyond these limits will return with error.
2239 *
2240 * Returns:
2241 * Zero on success, negative errno on failure.
2242 */
2243int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
2244 struct drm_file *file_priv)
2245{
2246 struct vmw_private *dev_priv = vmw_priv(dev);
2247 struct drm_mode_config *mode_config = &dev->mode_config;
2248 struct drm_vmw_update_layout_arg *arg =
2249 (struct drm_vmw_update_layout_arg *)data;
2250 void __user *user_rects;
2251 struct drm_vmw_rect *rects;
2252 struct drm_rect *drm_rects;
2253 unsigned rects_size;
2254 int ret, i;
2255
2256 if (!arg->num_outputs) {
2257 struct drm_rect def_rect = {0, 0, 800, 600};
2258 VMW_DEBUG_KMS("Default layout x1 = %d y1 = %d x2 = %d y2 = %d\n",
2259 def_rect.x1, def_rect.y1,
2260 def_rect.x2, def_rect.y2);
2261 vmw_du_update_layout(dev_priv, 1, &def_rect);
2262 return 0;
2263 }
2264
2265 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2266 rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2267 GFP_KERNEL);
2268 if (unlikely(!rects))
2269 return -ENOMEM;
2270
2271 user_rects = (void __user *)(unsigned long)arg->rects;
2272 ret = copy_from_user(rects, user_rects, rects_size);
2273 if (unlikely(ret != 0)) {
2274 DRM_ERROR("Failed to get rects.\n");
2275 ret = -EFAULT;
2276 goto out_free;
2277 }
2278
2279 drm_rects = (struct drm_rect *)rects;
2280
2281 VMW_DEBUG_KMS("Layout count = %u\n", arg->num_outputs);
2282 for (i = 0; i < arg->num_outputs; i++) {
2283 struct drm_vmw_rect curr_rect;
2284
2285 /* Verify user-space for overflow as kernel use drm_rect */
2286 if ((rects[i].x + rects[i].w > INT_MAX) ||
2287 (rects[i].y + rects[i].h > INT_MAX)) {
2288 ret = -ERANGE;
2289 goto out_free;
2290 }
2291
2292 curr_rect = rects[i];
2293 drm_rects[i].x1 = curr_rect.x;
2294 drm_rects[i].y1 = curr_rect.y;
2295 drm_rects[i].x2 = curr_rect.x + curr_rect.w;
2296 drm_rects[i].y2 = curr_rect.y + curr_rect.h;
2297
2298 VMW_DEBUG_KMS(" x1 = %d y1 = %d x2 = %d y2 = %d\n",
2299 drm_rects[i].x1, drm_rects[i].y1,
2300 drm_rects[i].x2, drm_rects[i].y2);
2301
2302 /*
2303 * Currently this check is limiting the topology within
2304 * mode_config->max (which actually is max texture size
2305 * supported by virtual device). This limit is here to address
2306 * window managers that create a big framebuffer for whole
2307 * topology.
2308 */
2309 if (drm_rects[i].x1 < 0 || drm_rects[i].y1 < 0 ||
2310 drm_rects[i].x2 > mode_config->max_width ||
2311 drm_rects[i].y2 > mode_config->max_height) {
2312 VMW_DEBUG_KMS("Invalid layout %d %d %d %d\n",
2313 drm_rects[i].x1, drm_rects[i].y1,
2314 drm_rects[i].x2, drm_rects[i].y2);
2315 ret = -EINVAL;
2316 goto out_free;
2317 }
2318 }
2319
2320 ret = vmw_kms_check_display_memory(dev, arg->num_outputs, drm_rects);
2321
2322 if (ret == 0)
2323 vmw_du_update_layout(dev_priv, arg->num_outputs, drm_rects);
2324
2325out_free:
2326 kfree(rects);
2327 return ret;
2328}
2329
2330/**
2331 * vmw_kms_helper_dirty - Helper to build commands and perform actions based
2332 * on a set of cliprects and a set of display units.
2333 *
2334 * @dev_priv: Pointer to a device private structure.
2335 * @framebuffer: Pointer to the framebuffer on which to perform the actions.
2336 * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL.
2337 * Cliprects are given in framebuffer coordinates.
2338 * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must
2339 * be NULL. Cliprects are given in source coordinates.
2340 * @dest_x: X coordinate offset for the crtc / destination clip rects.
2341 * @dest_y: Y coordinate offset for the crtc / destination clip rects.
2342 * @num_clips: Number of cliprects in the @clips or @vclips array.
2343 * @increment: Integer with which to increment the clip counter when looping.
2344 * Used to skip a predetermined number of clip rects.
2345 * @dirty: Closure structure. See the description of struct vmw_kms_dirty.
2346 */
2347int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
2348 struct vmw_framebuffer *framebuffer,
2349 const struct drm_clip_rect *clips,
2350 const struct drm_vmw_rect *vclips,
2351 s32 dest_x, s32 dest_y,
2352 int num_clips,
2353 int increment,
2354 struct vmw_kms_dirty *dirty)
2355{
2356 struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
2357 struct drm_crtc *crtc;
2358 u32 num_units = 0;
2359 u32 i, k;
2360
2361 dirty->dev_priv = dev_priv;
2362
2363 /* If crtc is passed, no need to iterate over other display units */
2364 if (dirty->crtc) {
2365 units[num_units++] = vmw_crtc_to_du(dirty->crtc);
2366 } else {
2367 list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list,
2368 head) {
2369 struct drm_plane *plane = crtc->primary;
2370
2371 if (plane->state->fb == &framebuffer->base)
2372 units[num_units++] = vmw_crtc_to_du(crtc);
2373 }
2374 }
2375
2376 for (k = 0; k < num_units; k++) {
2377 struct vmw_display_unit *unit = units[k];
2378 s32 crtc_x = unit->crtc.x;
2379 s32 crtc_y = unit->crtc.y;
2380 s32 crtc_width = unit->crtc.mode.hdisplay;
2381 s32 crtc_height = unit->crtc.mode.vdisplay;
2382 const struct drm_clip_rect *clips_ptr = clips;
2383 const struct drm_vmw_rect *vclips_ptr = vclips;
2384
2385 dirty->unit = unit;
2386 if (dirty->fifo_reserve_size > 0) {
2387 dirty->cmd = VMW_FIFO_RESERVE(dev_priv,
2388 dirty->fifo_reserve_size);
2389 if (!dirty->cmd)
2390 return -ENOMEM;
2391
2392 memset(dirty->cmd, 0, dirty->fifo_reserve_size);
2393 }
2394 dirty->num_hits = 0;
2395 for (i = 0; i < num_clips; i++, clips_ptr += increment,
2396 vclips_ptr += increment) {
2397 s32 clip_left;
2398 s32 clip_top;
2399
2400 /*
2401 * Select clip array type. Note that integer type
2402 * in @clips is unsigned short, whereas in @vclips
2403 * it's 32-bit.
2404 */
2405 if (clips) {
2406 dirty->fb_x = (s32) clips_ptr->x1;
2407 dirty->fb_y = (s32) clips_ptr->y1;
2408 dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x -
2409 crtc_x;
2410 dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y -
2411 crtc_y;
2412 } else {
2413 dirty->fb_x = vclips_ptr->x;
2414 dirty->fb_y = vclips_ptr->y;
2415 dirty->unit_x2 = dirty->fb_x + vclips_ptr->w +
2416 dest_x - crtc_x;
2417 dirty->unit_y2 = dirty->fb_y + vclips_ptr->h +
2418 dest_y - crtc_y;
2419 }
2420
2421 dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x;
2422 dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y;
2423
2424 /* Skip this clip if it's outside the crtc region */
2425 if (dirty->unit_x1 >= crtc_width ||
2426 dirty->unit_y1 >= crtc_height ||
2427 dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0)
2428 continue;
2429
2430 /* Clip right and bottom to crtc limits */
2431 dirty->unit_x2 = min_t(s32, dirty->unit_x2,
2432 crtc_width);
2433 dirty->unit_y2 = min_t(s32, dirty->unit_y2,
2434 crtc_height);
2435
2436 /* Clip left and top to crtc limits */
2437 clip_left = min_t(s32, dirty->unit_x1, 0);
2438 clip_top = min_t(s32, dirty->unit_y1, 0);
2439 dirty->unit_x1 -= clip_left;
2440 dirty->unit_y1 -= clip_top;
2441 dirty->fb_x -= clip_left;
2442 dirty->fb_y -= clip_top;
2443
2444 dirty->clip(dirty);
2445 }
2446
2447 dirty->fifo_commit(dirty);
2448 }
2449
2450 return 0;
2451}
2452
2453/**
2454 * vmw_kms_helper_validation_finish - Helper for post KMS command submission
2455 * cleanup and fencing
2456 * @dev_priv: Pointer to the device-private struct
2457 * @file_priv: Pointer identifying the client when user-space fencing is used
2458 * @ctx: Pointer to the validation context
2459 * @out_fence: If non-NULL, returned refcounted fence-pointer
2460 * @user_fence_rep: If non-NULL, pointer to user-space address area
2461 * in which to copy user-space fence info
2462 */
2463void vmw_kms_helper_validation_finish(struct vmw_private *dev_priv,
2464 struct drm_file *file_priv,
2465 struct vmw_validation_context *ctx,
2466 struct vmw_fence_obj **out_fence,
2467 struct drm_vmw_fence_rep __user *
2468 user_fence_rep)
2469{
2470 struct vmw_fence_obj *fence = NULL;
2471 uint32_t handle = 0;
2472 int ret = 0;
2473
2474 if (file_priv || user_fence_rep || vmw_validation_has_bos(ctx) ||
2475 out_fence)
2476 ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
2477 file_priv ? &handle : NULL);
2478 vmw_validation_done(ctx, fence);
2479 if (file_priv)
2480 vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv),
2481 ret, user_fence_rep, fence,
2482 handle, -1, NULL);
2483 if (out_fence)
2484 *out_fence = fence;
2485 else
2486 vmw_fence_obj_unreference(&fence);
2487}
2488
2489/**
2490 * vmw_kms_update_proxy - Helper function to update a proxy surface from
2491 * its backing MOB.
2492 *
2493 * @res: Pointer to the surface resource
2494 * @clips: Clip rects in framebuffer (surface) space.
2495 * @num_clips: Number of clips in @clips.
2496 * @increment: Integer with which to increment the clip counter when looping.
2497 * Used to skip a predetermined number of clip rects.
2498 *
2499 * This function makes sure the proxy surface is updated from its backing MOB
2500 * using the region given by @clips. The surface resource @res and its backing
2501 * MOB needs to be reserved and validated on call.
2502 */
2503int vmw_kms_update_proxy(struct vmw_resource *res,
2504 const struct drm_clip_rect *clips,
2505 unsigned num_clips,
2506 int increment)
2507{
2508 struct vmw_private *dev_priv = res->dev_priv;
2509 struct drm_vmw_size *size = &vmw_res_to_srf(res)->metadata.base_size;
2510 struct {
2511 SVGA3dCmdHeader header;
2512 SVGA3dCmdUpdateGBImage body;
2513 } *cmd;
2514 SVGA3dBox *box;
2515 size_t copy_size = 0;
2516 int i;
2517
2518 if (!clips)
2519 return 0;
2520
2521 cmd = VMW_FIFO_RESERVE(dev_priv, sizeof(*cmd) * num_clips);
2522 if (!cmd)
2523 return -ENOMEM;
2524
2525 for (i = 0; i < num_clips; ++i, clips += increment, ++cmd) {
2526 box = &cmd->body.box;
2527
2528 cmd->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
2529 cmd->header.size = sizeof(cmd->body);
2530 cmd->body.image.sid = res->id;
2531 cmd->body.image.face = 0;
2532 cmd->body.image.mipmap = 0;
2533
2534 if (clips->x1 > size->width || clips->x2 > size->width ||
2535 clips->y1 > size->height || clips->y2 > size->height) {
2536 DRM_ERROR("Invalid clips outsize of framebuffer.\n");
2537 return -EINVAL;
2538 }
2539
2540 box->x = clips->x1;
2541 box->y = clips->y1;
2542 box->z = 0;
2543 box->w = clips->x2 - clips->x1;
2544 box->h = clips->y2 - clips->y1;
2545 box->d = 1;
2546
2547 copy_size += sizeof(*cmd);
2548 }
2549
2550 vmw_fifo_commit(dev_priv, copy_size);
2551
2552 return 0;
2553}
2554
2555int vmw_kms_fbdev_init_data(struct vmw_private *dev_priv,
2556 unsigned unit,
2557 u32 max_width,
2558 u32 max_height,
2559 struct drm_connector **p_con,
2560 struct drm_crtc **p_crtc,
2561 struct drm_display_mode **p_mode)
2562{
2563 struct drm_connector *con;
2564 struct vmw_display_unit *du;
2565 struct drm_display_mode *mode;
2566 int i = 0;
2567 int ret = 0;
2568
2569 mutex_lock(&dev_priv->dev->mode_config.mutex);
2570 list_for_each_entry(con, &dev_priv->dev->mode_config.connector_list,
2571 head) {
2572 if (i == unit)
2573 break;
2574
2575 ++i;
2576 }
2577
2578 if (&con->head == &dev_priv->dev->mode_config.connector_list) {
2579 DRM_ERROR("Could not find initial display unit.\n");
2580 ret = -EINVAL;
2581 goto out_unlock;
2582 }
2583
2584 if (list_empty(&con->modes))
2585 (void) vmw_du_connector_fill_modes(con, max_width, max_height);
2586
2587 if (list_empty(&con->modes)) {
2588 DRM_ERROR("Could not find initial display mode.\n");
2589 ret = -EINVAL;
2590 goto out_unlock;
2591 }
2592
2593 du = vmw_connector_to_du(con);
2594 *p_con = con;
2595 *p_crtc = &du->crtc;
2596
2597 list_for_each_entry(mode, &con->modes, head) {
2598 if (mode->type & DRM_MODE_TYPE_PREFERRED)
2599 break;
2600 }
2601
2602 if (&mode->head == &con->modes) {
2603 WARN_ONCE(true, "Could not find initial preferred mode.\n");
2604 *p_mode = list_first_entry(&con->modes,
2605 struct drm_display_mode,
2606 head);
2607 } else {
2608 *p_mode = mode;
2609 }
2610
2611 out_unlock:
2612 mutex_unlock(&dev_priv->dev->mode_config.mutex);
2613
2614 return ret;
2615}
2616
2617/**
2618 * vmw_kms_create_implicit_placement_proparty - Set up the implicit placement
2619 * property.
2620 *
2621 * @dev_priv: Pointer to a device private struct.
2622 *
2623 * Sets up the implicit placement property unless it's already set up.
2624 */
2625void
2626vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv)
2627{
2628 if (dev_priv->implicit_placement_property)
2629 return;
2630
2631 dev_priv->implicit_placement_property =
2632 drm_property_create_range(dev_priv->dev,
2633 DRM_MODE_PROP_IMMUTABLE,
2634 "implicit_placement", 0, 1);
2635}
2636
2637/**
2638 * vmw_kms_suspend - Save modesetting state and turn modesetting off.
2639 *
2640 * @dev: Pointer to the drm device
2641 * Return: 0 on success. Negative error code on failure.
2642 */
2643int vmw_kms_suspend(struct drm_device *dev)
2644{
2645 struct vmw_private *dev_priv = vmw_priv(dev);
2646
2647 dev_priv->suspend_state = drm_atomic_helper_suspend(dev);
2648 if (IS_ERR(dev_priv->suspend_state)) {
2649 int ret = PTR_ERR(dev_priv->suspend_state);
2650
2651 DRM_ERROR("Failed kms suspend: %d\n", ret);
2652 dev_priv->suspend_state = NULL;
2653
2654 return ret;
2655 }
2656
2657 return 0;
2658}
2659
2660
2661/**
2662 * vmw_kms_resume - Re-enable modesetting and restore state
2663 *
2664 * @dev: Pointer to the drm device
2665 * Return: 0 on success. Negative error code on failure.
2666 *
2667 * State is resumed from a previous vmw_kms_suspend(). It's illegal
2668 * to call this function without a previous vmw_kms_suspend().
2669 */
2670int vmw_kms_resume(struct drm_device *dev)
2671{
2672 struct vmw_private *dev_priv = vmw_priv(dev);
2673 int ret;
2674
2675 if (WARN_ON(!dev_priv->suspend_state))
2676 return 0;
2677
2678 ret = drm_atomic_helper_resume(dev, dev_priv->suspend_state);
2679 dev_priv->suspend_state = NULL;
2680
2681 return ret;
2682}
2683
2684/**
2685 * vmw_kms_lost_device - Notify kms that modesetting capabilities will be lost
2686 *
2687 * @dev: Pointer to the drm device
2688 */
2689void vmw_kms_lost_device(struct drm_device *dev)
2690{
2691 drm_atomic_helper_shutdown(dev);
2692}
2693
2694/**
2695 * vmw_du_helper_plane_update - Helper to do plane update on a display unit.
2696 * @update: The closure structure.
2697 *
2698 * Call this helper after setting callbacks in &vmw_du_update_plane to do plane
2699 * update on display unit.
2700 *
2701 * Return: 0 on success or a negative error code on failure.
2702 */
2703int vmw_du_helper_plane_update(struct vmw_du_update_plane *update)
2704{
2705 struct drm_plane_state *state = update->plane->state;
2706 struct drm_plane_state *old_state = update->old_state;
2707 struct drm_atomic_helper_damage_iter iter;
2708 struct drm_rect clip;
2709 struct drm_rect bb;
2710 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
2711 uint32_t reserved_size = 0;
2712 uint32_t submit_size = 0;
2713 uint32_t curr_size = 0;
2714 uint32_t num_hits = 0;
2715 void *cmd_start;
2716 char *cmd_next;
2717 int ret;
2718
2719 /*
2720 * Iterate in advance to check if really need plane update and find the
2721 * number of clips that actually are in plane src for fifo allocation.
2722 */
2723 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
2724 drm_atomic_for_each_plane_damage(&iter, &clip)
2725 num_hits++;
2726
2727 if (num_hits == 0)
2728 return 0;
2729
2730 if (update->vfb->bo) {
2731 struct vmw_framebuffer_bo *vfbbo =
2732 container_of(update->vfb, typeof(*vfbbo), base);
2733
2734 ret = vmw_validation_add_bo(&val_ctx, vfbbo->buffer, false,
2735 update->cpu_blit);
2736 } else {
2737 struct vmw_framebuffer_surface *vfbs =
2738 container_of(update->vfb, typeof(*vfbs), base);
2739
2740 ret = vmw_validation_add_resource(&val_ctx, &vfbs->surface->res,
2741 0, VMW_RES_DIRTY_NONE, NULL,
2742 NULL);
2743 }
2744
2745 if (ret)
2746 return ret;
2747
2748 ret = vmw_validation_prepare(&val_ctx, update->mutex, update->intr);
2749 if (ret)
2750 goto out_unref;
2751
2752 reserved_size = update->calc_fifo_size(update, num_hits);
2753 cmd_start = VMW_FIFO_RESERVE(update->dev_priv, reserved_size);
2754 if (!cmd_start) {
2755 ret = -ENOMEM;
2756 goto out_revert;
2757 }
2758
2759 cmd_next = cmd_start;
2760
2761 if (update->post_prepare) {
2762 curr_size = update->post_prepare(update, cmd_next);
2763 cmd_next += curr_size;
2764 submit_size += curr_size;
2765 }
2766
2767 if (update->pre_clip) {
2768 curr_size = update->pre_clip(update, cmd_next, num_hits);
2769 cmd_next += curr_size;
2770 submit_size += curr_size;
2771 }
2772
2773 bb.x1 = INT_MAX;
2774 bb.y1 = INT_MAX;
2775 bb.x2 = INT_MIN;
2776 bb.y2 = INT_MIN;
2777
2778 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
2779 drm_atomic_for_each_plane_damage(&iter, &clip) {
2780 uint32_t fb_x = clip.x1;
2781 uint32_t fb_y = clip.y1;
2782
2783 vmw_du_translate_to_crtc(state, &clip);
2784 if (update->clip) {
2785 curr_size = update->clip(update, cmd_next, &clip, fb_x,
2786 fb_y);
2787 cmd_next += curr_size;
2788 submit_size += curr_size;
2789 }
2790 bb.x1 = min_t(int, bb.x1, clip.x1);
2791 bb.y1 = min_t(int, bb.y1, clip.y1);
2792 bb.x2 = max_t(int, bb.x2, clip.x2);
2793 bb.y2 = max_t(int, bb.y2, clip.y2);
2794 }
2795
2796 curr_size = update->post_clip(update, cmd_next, &bb);
2797 submit_size += curr_size;
2798
2799 if (reserved_size < submit_size)
2800 submit_size = 0;
2801
2802 vmw_fifo_commit(update->dev_priv, submit_size);
2803
2804 vmw_kms_helper_validation_finish(update->dev_priv, NULL, &val_ctx,
2805 update->out_fence, NULL);
2806 return ret;
2807
2808out_revert:
2809 vmw_validation_revert(&val_ctx);
2810
2811out_unref:
2812 vmw_validation_unref_lists(&val_ctx);
2813 return ret;
2814}