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29#include <linux/export.h>
30
31#include <drm/drmP.h>
32#include "vmwgfx_drv.h"
33#include "vmwgfx_kms.h"
34
35#include <drm/ttm/ttm_placement.h>
36
37#define VMW_DIRTY_DELAY (HZ / 30)
38
39struct vmw_fb_par {
40 struct vmw_private *vmw_priv;
41
42 void *vmalloc;
43
44 struct mutex bo_mutex;
45 struct vmw_dma_buffer *vmw_bo;
46 struct ttm_bo_kmap_obj map;
47 void *bo_ptr;
48 unsigned bo_size;
49 struct drm_framebuffer *set_fb;
50 struct drm_display_mode *set_mode;
51 u32 fb_x;
52 u32 fb_y;
53 bool bo_iowrite;
54
55 u32 pseudo_palette[17];
56
57 unsigned max_width;
58 unsigned max_height;
59
60 struct {
61 spinlock_t lock;
62 bool active;
63 unsigned x1;
64 unsigned y1;
65 unsigned x2;
66 unsigned y2;
67 } dirty;
68
69 struct drm_crtc *crtc;
70 struct drm_connector *con;
71 struct delayed_work local_work;
72};
73
74static int vmw_fb_setcolreg(unsigned regno, unsigned red, unsigned green,
75 unsigned blue, unsigned transp,
76 struct fb_info *info)
77{
78 struct vmw_fb_par *par = info->par;
79 u32 *pal = par->pseudo_palette;
80
81 if (regno > 15) {
82 DRM_ERROR("Bad regno %u.\n", regno);
83 return 1;
84 }
85
86 switch (par->set_fb->depth) {
87 case 24:
88 case 32:
89 pal[regno] = ((red & 0xff00) << 8) |
90 (green & 0xff00) |
91 ((blue & 0xff00) >> 8);
92 break;
93 default:
94 DRM_ERROR("Bad depth %u, bpp %u.\n", par->set_fb->depth,
95 par->set_fb->bits_per_pixel);
96 return 1;
97 }
98
99 return 0;
100}
101
102static int vmw_fb_check_var(struct fb_var_screeninfo *var,
103 struct fb_info *info)
104{
105 int depth = var->bits_per_pixel;
106 struct vmw_fb_par *par = info->par;
107 struct vmw_private *vmw_priv = par->vmw_priv;
108
109 switch (var->bits_per_pixel) {
110 case 32:
111 depth = (var->transp.length > 0) ? 32 : 24;
112 break;
113 default:
114 DRM_ERROR("Bad bpp %u.\n", var->bits_per_pixel);
115 return -EINVAL;
116 }
117
118 switch (depth) {
119 case 24:
120 var->red.offset = 16;
121 var->green.offset = 8;
122 var->blue.offset = 0;
123 var->red.length = 8;
124 var->green.length = 8;
125 var->blue.length = 8;
126 var->transp.length = 0;
127 var->transp.offset = 0;
128 break;
129 case 32:
130 var->red.offset = 16;
131 var->green.offset = 8;
132 var->blue.offset = 0;
133 var->red.length = 8;
134 var->green.length = 8;
135 var->blue.length = 8;
136 var->transp.length = 8;
137 var->transp.offset = 24;
138 break;
139 default:
140 DRM_ERROR("Bad depth %u.\n", depth);
141 return -EINVAL;
142 }
143
144 if ((var->xoffset + var->xres) > par->max_width ||
145 (var->yoffset + var->yres) > par->max_height) {
146 DRM_ERROR("Requested geom can not fit in framebuffer\n");
147 return -EINVAL;
148 }
149
150 if (!vmw_kms_validate_mode_vram(vmw_priv,
151 var->xres * var->bits_per_pixel/8,
152 var->yoffset + var->yres)) {
153 DRM_ERROR("Requested geom can not fit in framebuffer\n");
154 return -EINVAL;
155 }
156
157 return 0;
158}
159
160static int vmw_fb_blank(int blank, struct fb_info *info)
161{
162 return 0;
163}
164
165
166
167
168
169static void vmw_fb_dirty_flush(struct work_struct *work)
170{
171 struct vmw_fb_par *par = container_of(work, struct vmw_fb_par,
172 local_work.work);
173 struct vmw_private *vmw_priv = par->vmw_priv;
174 struct fb_info *info = vmw_priv->fb_info;
175 unsigned long irq_flags;
176 s32 dst_x1, dst_x2, dst_y1, dst_y2, w, h;
177 u32 cpp, max_x, max_y;
178 struct drm_clip_rect clip;
179 struct drm_framebuffer *cur_fb;
180 u8 *src_ptr, *dst_ptr;
181
182 if (vmw_priv->suspended)
183 return;
184
185 mutex_lock(&par->bo_mutex);
186 cur_fb = par->set_fb;
187 if (!cur_fb)
188 goto out_unlock;
189
190 spin_lock_irqsave(&par->dirty.lock, irq_flags);
191 if (!par->dirty.active) {
192 spin_unlock_irqrestore(&par->dirty.lock, irq_flags);
193 goto out_unlock;
194 }
195
196
197
198
199
200 cpp = (cur_fb->bits_per_pixel + 7) / 8;
201 max_x = par->fb_x + cur_fb->width;
202 max_y = par->fb_y + cur_fb->height;
203
204 dst_x1 = par->dirty.x1 - par->fb_x;
205 dst_y1 = par->dirty.y1 - par->fb_y;
206 dst_x1 = max_t(s32, dst_x1, 0);
207 dst_y1 = max_t(s32, dst_y1, 0);
208
209 dst_x2 = par->dirty.x2 - par->fb_x;
210 dst_y2 = par->dirty.y2 - par->fb_y;
211 dst_x2 = min_t(s32, dst_x2, max_x);
212 dst_y2 = min_t(s32, dst_y2, max_y);
213 w = dst_x2 - dst_x1;
214 h = dst_y2 - dst_y1;
215 w = max_t(s32, 0, w);
216 h = max_t(s32, 0, h);
217
218 par->dirty.x1 = par->dirty.x2 = 0;
219 par->dirty.y1 = par->dirty.y2 = 0;
220 spin_unlock_irqrestore(&par->dirty.lock, irq_flags);
221
222 if (w && h) {
223 dst_ptr = (u8 *)par->bo_ptr +
224 (dst_y1 * par->set_fb->pitches[0] + dst_x1 * cpp);
225 src_ptr = (u8 *)par->vmalloc +
226 ((dst_y1 + par->fb_y) * info->fix.line_length +
227 (dst_x1 + par->fb_x) * cpp);
228
229 while (h-- > 0) {
230 memcpy(dst_ptr, src_ptr, w*cpp);
231 dst_ptr += par->set_fb->pitches[0];
232 src_ptr += info->fix.line_length;
233 }
234
235 clip.x1 = dst_x1;
236 clip.x2 = dst_x2;
237 clip.y1 = dst_y1;
238 clip.y2 = dst_y2;
239
240 WARN_ON_ONCE(par->set_fb->funcs->dirty(cur_fb, NULL, 0, 0,
241 &clip, 1));
242 vmw_fifo_flush(vmw_priv, false);
243 }
244out_unlock:
245 mutex_unlock(&par->bo_mutex);
246}
247
248static void vmw_fb_dirty_mark(struct vmw_fb_par *par,
249 unsigned x1, unsigned y1,
250 unsigned width, unsigned height)
251{
252 unsigned long flags;
253 unsigned x2 = x1 + width;
254 unsigned y2 = y1 + height;
255
256 spin_lock_irqsave(&par->dirty.lock, flags);
257 if (par->dirty.x1 == par->dirty.x2) {
258 par->dirty.x1 = x1;
259 par->dirty.y1 = y1;
260 par->dirty.x2 = x2;
261 par->dirty.y2 = y2;
262
263
264 if (par->dirty.active)
265 schedule_delayed_work(&par->local_work,
266 VMW_DIRTY_DELAY);
267 } else {
268 if (x1 < par->dirty.x1)
269 par->dirty.x1 = x1;
270 if (y1 < par->dirty.y1)
271 par->dirty.y1 = y1;
272 if (x2 > par->dirty.x2)
273 par->dirty.x2 = x2;
274 if (y2 > par->dirty.y2)
275 par->dirty.y2 = y2;
276 }
277 spin_unlock_irqrestore(&par->dirty.lock, flags);
278}
279
280static int vmw_fb_pan_display(struct fb_var_screeninfo *var,
281 struct fb_info *info)
282{
283 struct vmw_fb_par *par = info->par;
284
285 if ((var->xoffset + var->xres) > var->xres_virtual ||
286 (var->yoffset + var->yres) > var->yres_virtual) {
287 DRM_ERROR("Requested panning can not fit in framebuffer\n");
288 return -EINVAL;
289 }
290
291 mutex_lock(&par->bo_mutex);
292 par->fb_x = var->xoffset;
293 par->fb_y = var->yoffset;
294 if (par->set_fb)
295 vmw_fb_dirty_mark(par, par->fb_x, par->fb_y, par->set_fb->width,
296 par->set_fb->height);
297 mutex_unlock(&par->bo_mutex);
298
299 return 0;
300}
301
302static void vmw_deferred_io(struct fb_info *info,
303 struct list_head *pagelist)
304{
305 struct vmw_fb_par *par = info->par;
306 unsigned long start, end, min, max;
307 unsigned long flags;
308 struct page *page;
309 int y1, y2;
310
311 min = ULONG_MAX;
312 max = 0;
313 list_for_each_entry(page, pagelist, lru) {
314 start = page->index << PAGE_SHIFT;
315 end = start + PAGE_SIZE - 1;
316 min = min(min, start);
317 max = max(max, end);
318 }
319
320 if (min < max) {
321 y1 = min / info->fix.line_length;
322 y2 = (max / info->fix.line_length) + 1;
323
324 spin_lock_irqsave(&par->dirty.lock, flags);
325 par->dirty.x1 = 0;
326 par->dirty.y1 = y1;
327 par->dirty.x2 = info->var.xres;
328 par->dirty.y2 = y2;
329 spin_unlock_irqrestore(&par->dirty.lock, flags);
330
331
332
333
334
335 cancel_delayed_work(&par->local_work);
336 schedule_delayed_work(&par->local_work, 0);
337 }
338};
339
340static struct fb_deferred_io vmw_defio = {
341 .delay = VMW_DIRTY_DELAY,
342 .deferred_io = vmw_deferred_io,
343};
344
345
346
347
348
349static void vmw_fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
350{
351 cfb_fillrect(info, rect);
352 vmw_fb_dirty_mark(info->par, rect->dx, rect->dy,
353 rect->width, rect->height);
354}
355
356static void vmw_fb_copyarea(struct fb_info *info, const struct fb_copyarea *region)
357{
358 cfb_copyarea(info, region);
359 vmw_fb_dirty_mark(info->par, region->dx, region->dy,
360 region->width, region->height);
361}
362
363static void vmw_fb_imageblit(struct fb_info *info, const struct fb_image *image)
364{
365 cfb_imageblit(info, image);
366 vmw_fb_dirty_mark(info->par, image->dx, image->dy,
367 image->width, image->height);
368}
369
370
371
372
373
374static int vmw_fb_create_bo(struct vmw_private *vmw_priv,
375 size_t size, struct vmw_dma_buffer **out)
376{
377 struct vmw_dma_buffer *vmw_bo;
378 int ret;
379
380 (void) ttm_write_lock(&vmw_priv->reservation_sem, false);
381
382 vmw_bo = kmalloc(sizeof(*vmw_bo), GFP_KERNEL);
383 if (!vmw_bo) {
384 ret = -ENOMEM;
385 goto err_unlock;
386 }
387
388 ret = vmw_dmabuf_init(vmw_priv, vmw_bo, size,
389 &vmw_sys_placement,
390 false,
391 &vmw_dmabuf_bo_free);
392 if (unlikely(ret != 0))
393 goto err_unlock;
394
395 *out = vmw_bo;
396 ttm_write_unlock(&vmw_priv->reservation_sem);
397
398 return 0;
399
400err_unlock:
401 ttm_write_unlock(&vmw_priv->reservation_sem);
402 return ret;
403}
404
405static int vmw_fb_compute_depth(struct fb_var_screeninfo *var,
406 int *depth)
407{
408 switch (var->bits_per_pixel) {
409 case 32:
410 *depth = (var->transp.length > 0) ? 32 : 24;
411 break;
412 default:
413 DRM_ERROR("Bad bpp %u.\n", var->bits_per_pixel);
414 return -EINVAL;
415 }
416
417 return 0;
418}
419
420static int vmw_fb_kms_detach(struct vmw_fb_par *par,
421 bool detach_bo,
422 bool unref_bo)
423{
424 struct drm_framebuffer *cur_fb = par->set_fb;
425 int ret;
426
427
428 if (par->set_mode) {
429 struct drm_mode_set set;
430
431 set.crtc = par->crtc;
432 set.x = 0;
433 set.y = 0;
434 set.mode = NULL;
435 set.fb = NULL;
436 set.num_connectors = 1;
437 set.connectors = &par->con;
438 ret = drm_mode_set_config_internal(&set);
439 if (ret) {
440 DRM_ERROR("Could not unset a mode.\n");
441 return ret;
442 }
443 drm_mode_destroy(par->vmw_priv->dev, par->set_mode);
444 par->set_mode = NULL;
445 }
446
447 if (cur_fb) {
448 drm_framebuffer_unreference(cur_fb);
449 par->set_fb = NULL;
450 }
451
452 if (par->vmw_bo && detach_bo) {
453 if (par->bo_ptr) {
454 ttm_bo_kunmap(&par->map);
455 par->bo_ptr = NULL;
456 }
457 if (unref_bo)
458 vmw_dmabuf_unreference(&par->vmw_bo);
459 else
460 vmw_dmabuf_unpin(par->vmw_priv, par->vmw_bo, false);
461 }
462
463 return 0;
464}
465
466static int vmw_fb_kms_framebuffer(struct fb_info *info)
467{
468 struct drm_mode_fb_cmd mode_cmd;
469 struct vmw_fb_par *par = info->par;
470 struct fb_var_screeninfo *var = &info->var;
471 struct drm_framebuffer *cur_fb;
472 struct vmw_framebuffer *vfb;
473 int ret = 0;
474 size_t new_bo_size;
475
476 ret = vmw_fb_compute_depth(var, &mode_cmd.depth);
477 if (ret)
478 return ret;
479
480 mode_cmd.width = var->xres;
481 mode_cmd.height = var->yres;
482 mode_cmd.bpp = var->bits_per_pixel;
483 mode_cmd.pitch = ((mode_cmd.bpp + 7) / 8) * mode_cmd.width;
484
485 cur_fb = par->set_fb;
486 if (cur_fb && cur_fb->width == mode_cmd.width &&
487 cur_fb->height == mode_cmd.height &&
488 cur_fb->bits_per_pixel == mode_cmd.bpp &&
489 cur_fb->depth == mode_cmd.depth &&
490 cur_fb->pitches[0] == mode_cmd.pitch)
491 return 0;
492
493
494 new_bo_size = (size_t) mode_cmd.pitch * (size_t) mode_cmd.height;
495 ret = vmw_fb_kms_detach(par,
496 par->bo_size < new_bo_size ||
497 par->bo_size > 2*new_bo_size,
498 true);
499 if (ret)
500 return ret;
501
502 if (!par->vmw_bo) {
503 ret = vmw_fb_create_bo(par->vmw_priv, new_bo_size,
504 &par->vmw_bo);
505 if (ret) {
506 DRM_ERROR("Failed creating a buffer object for "
507 "fbdev.\n");
508 return ret;
509 }
510 par->bo_size = new_bo_size;
511 }
512
513 vfb = vmw_kms_new_framebuffer(par->vmw_priv, par->vmw_bo, NULL,
514 true, &mode_cmd);
515 if (IS_ERR(vfb))
516 return PTR_ERR(vfb);
517
518 par->set_fb = &vfb->base;
519
520 return 0;
521}
522
523static int vmw_fb_set_par(struct fb_info *info)
524{
525 struct vmw_fb_par *par = info->par;
526 struct vmw_private *vmw_priv = par->vmw_priv;
527 struct drm_mode_set set;
528 struct fb_var_screeninfo *var = &info->var;
529 struct drm_display_mode new_mode = { DRM_MODE("fb_mode",
530 DRM_MODE_TYPE_DRIVER,
531 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
532 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
533 };
534 struct drm_display_mode *old_mode;
535 struct drm_display_mode *mode;
536 int ret;
537
538 old_mode = par->set_mode;
539 mode = drm_mode_duplicate(vmw_priv->dev, &new_mode);
540 if (!mode) {
541 DRM_ERROR("Could not create new fb mode.\n");
542 return -ENOMEM;
543 }
544
545 mode->hdisplay = var->xres;
546 mode->vdisplay = var->yres;
547 vmw_guess_mode_timing(mode);
548
549 if (old_mode && drm_mode_equal(old_mode, mode)) {
550 drm_mode_destroy(vmw_priv->dev, mode);
551 mode = old_mode;
552 old_mode = NULL;
553 } else if (!vmw_kms_validate_mode_vram(vmw_priv,
554 mode->hdisplay *
555 DIV_ROUND_UP(var->bits_per_pixel, 8),
556 mode->vdisplay)) {
557 drm_mode_destroy(vmw_priv->dev, mode);
558 return -EINVAL;
559 }
560
561 mutex_lock(&par->bo_mutex);
562 drm_modeset_lock_all(vmw_priv->dev);
563 ret = vmw_fb_kms_framebuffer(info);
564 if (ret)
565 goto out_unlock;
566
567 par->fb_x = var->xoffset;
568 par->fb_y = var->yoffset;
569
570 set.crtc = par->crtc;
571 set.x = 0;
572 set.y = 0;
573 set.mode = mode;
574 set.fb = par->set_fb;
575 set.num_connectors = 1;
576 set.connectors = &par->con;
577
578 ret = drm_mode_set_config_internal(&set);
579 if (ret)
580 goto out_unlock;
581
582 if (!par->bo_ptr) {
583 struct vmw_framebuffer *vfb = vmw_framebuffer_to_vfb(set.fb);
584
585
586
587
588
589 ret = vfb->pin(vfb);
590 if (ret) {
591 DRM_ERROR("Could not pin the fbdev framebuffer.\n");
592 goto out_unlock;
593 }
594
595 ret = ttm_bo_kmap(&par->vmw_bo->base, 0,
596 par->vmw_bo->base.num_pages, &par->map);
597 if (ret) {
598 vfb->unpin(vfb);
599 DRM_ERROR("Could not map the fbdev framebuffer.\n");
600 goto out_unlock;
601 }
602
603 par->bo_ptr = ttm_kmap_obj_virtual(&par->map, &par->bo_iowrite);
604 }
605
606
607 vmw_fb_dirty_mark(par, par->fb_x, par->fb_y,
608 par->set_fb->width, par->set_fb->height);
609
610
611
612
613 schedule_delayed_work(&par->local_work, 0);
614
615out_unlock:
616 if (old_mode)
617 drm_mode_destroy(vmw_priv->dev, old_mode);
618 par->set_mode = mode;
619
620 drm_modeset_unlock_all(vmw_priv->dev);
621 mutex_unlock(&par->bo_mutex);
622
623 return ret;
624}
625
626
627static struct fb_ops vmw_fb_ops = {
628 .owner = THIS_MODULE,
629 .fb_check_var = vmw_fb_check_var,
630 .fb_set_par = vmw_fb_set_par,
631 .fb_setcolreg = vmw_fb_setcolreg,
632 .fb_fillrect = vmw_fb_fillrect,
633 .fb_copyarea = vmw_fb_copyarea,
634 .fb_imageblit = vmw_fb_imageblit,
635 .fb_pan_display = vmw_fb_pan_display,
636 .fb_blank = vmw_fb_blank,
637};
638
639int vmw_fb_init(struct vmw_private *vmw_priv)
640{
641 struct device *device = &vmw_priv->dev->pdev->dev;
642 struct vmw_fb_par *par;
643 struct fb_info *info;
644 unsigned fb_width, fb_height;
645 unsigned fb_bpp, fb_depth, fb_offset, fb_pitch, fb_size;
646 struct drm_display_mode *init_mode;
647 int ret;
648
649 fb_bpp = 32;
650 fb_depth = 24;
651
652
653 fb_width = min(vmw_priv->fb_max_width, (unsigned)2048);
654 fb_height = min(vmw_priv->fb_max_height, (unsigned)2048);
655
656 fb_pitch = fb_width * fb_bpp / 8;
657 fb_size = fb_pitch * fb_height;
658 fb_offset = vmw_read(vmw_priv, SVGA_REG_FB_OFFSET);
659
660 info = framebuffer_alloc(sizeof(*par), device);
661 if (!info)
662 return -ENOMEM;
663
664
665
666
667 vmw_priv->fb_info = info;
668 par = info->par;
669 memset(par, 0, sizeof(*par));
670 INIT_DELAYED_WORK(&par->local_work, &vmw_fb_dirty_flush);
671 par->vmw_priv = vmw_priv;
672 par->vmalloc = NULL;
673 par->max_width = fb_width;
674 par->max_height = fb_height;
675
676 drm_modeset_lock_all(vmw_priv->dev);
677 ret = vmw_kms_fbdev_init_data(vmw_priv, 0, par->max_width,
678 par->max_height, &par->con,
679 &par->crtc, &init_mode);
680 if (ret) {
681 drm_modeset_unlock_all(vmw_priv->dev);
682 goto err_kms;
683 }
684
685 info->var.xres = init_mode->hdisplay;
686 info->var.yres = init_mode->vdisplay;
687 drm_modeset_unlock_all(vmw_priv->dev);
688
689
690
691
692 par->vmalloc = vzalloc(fb_size);
693 if (unlikely(par->vmalloc == NULL)) {
694 ret = -ENOMEM;
695 goto err_free;
696 }
697
698
699
700
701 strcpy(info->fix.id, "svgadrmfb");
702 info->fix.type = FB_TYPE_PACKED_PIXELS;
703 info->fix.visual = FB_VISUAL_TRUECOLOR;
704 info->fix.type_aux = 0;
705 info->fix.xpanstep = 1;
706 info->fix.ypanstep = 1;
707 info->fix.ywrapstep = 0;
708 info->fix.accel = FB_ACCEL_NONE;
709 info->fix.line_length = fb_pitch;
710
711 info->fix.smem_start = 0;
712 info->fix.smem_len = fb_size;
713
714 info->pseudo_palette = par->pseudo_palette;
715 info->screen_base = (char __iomem *)par->vmalloc;
716 info->screen_size = fb_size;
717
718 info->flags = FBINFO_DEFAULT;
719 info->fbops = &vmw_fb_ops;
720
721
722 info->var.red.offset = 16;
723 info->var.green.offset = 8;
724 info->var.blue.offset = 0;
725 info->var.red.length = 8;
726 info->var.green.length = 8;
727 info->var.blue.length = 8;
728 info->var.transp.offset = 0;
729 info->var.transp.length = 0;
730
731 info->var.xres_virtual = fb_width;
732 info->var.yres_virtual = fb_height;
733 info->var.bits_per_pixel = fb_bpp;
734 info->var.xoffset = 0;
735 info->var.yoffset = 0;
736 info->var.activate = FB_ACTIVATE_NOW;
737 info->var.height = -1;
738 info->var.width = -1;
739
740
741 info->apertures = alloc_apertures(1);
742 if (!info->apertures) {
743 ret = -ENOMEM;
744 goto err_aper;
745 }
746 info->apertures->ranges[0].base = vmw_priv->vram_start;
747 info->apertures->ranges[0].size = vmw_priv->vram_size;
748
749
750
751
752 par->dirty.x1 = par->dirty.x2 = 0;
753 par->dirty.y1 = par->dirty.y2 = 0;
754 par->dirty.active = true;
755 spin_lock_init(&par->dirty.lock);
756 mutex_init(&par->bo_mutex);
757 info->fbdefio = &vmw_defio;
758 fb_deferred_io_init(info);
759
760 ret = register_framebuffer(info);
761 if (unlikely(ret != 0))
762 goto err_defio;
763
764 vmw_fb_set_par(info);
765
766 return 0;
767
768err_defio:
769 fb_deferred_io_cleanup(info);
770err_aper:
771err_free:
772 vfree(par->vmalloc);
773err_kms:
774 framebuffer_release(info);
775 vmw_priv->fb_info = NULL;
776
777 return ret;
778}
779
780int vmw_fb_close(struct vmw_private *vmw_priv)
781{
782 struct fb_info *info;
783 struct vmw_fb_par *par;
784
785 if (!vmw_priv->fb_info)
786 return 0;
787
788 info = vmw_priv->fb_info;
789 par = info->par;
790
791
792 fb_deferred_io_cleanup(info);
793 cancel_delayed_work_sync(&par->local_work);
794 unregister_framebuffer(info);
795
796 (void) vmw_fb_kms_detach(par, true, true);
797
798 vfree(par->vmalloc);
799 framebuffer_release(info);
800
801 return 0;
802}
803
804int vmw_fb_off(struct vmw_private *vmw_priv)
805{
806 struct fb_info *info;
807 struct vmw_fb_par *par;
808 unsigned long flags;
809
810 if (!vmw_priv->fb_info)
811 return -EINVAL;
812
813 info = vmw_priv->fb_info;
814 par = info->par;
815
816 spin_lock_irqsave(&par->dirty.lock, flags);
817 par->dirty.active = false;
818 spin_unlock_irqrestore(&par->dirty.lock, flags);
819
820 flush_delayed_work(&info->deferred_work);
821 flush_delayed_work(&par->local_work);
822
823 mutex_lock(&par->bo_mutex);
824 (void) vmw_fb_kms_detach(par, true, false);
825 mutex_unlock(&par->bo_mutex);
826
827 return 0;
828}
829
830int vmw_fb_on(struct vmw_private *vmw_priv)
831{
832 struct fb_info *info;
833 struct vmw_fb_par *par;
834 unsigned long flags;
835
836 if (!vmw_priv->fb_info)
837 return -EINVAL;
838
839 info = vmw_priv->fb_info;
840 par = info->par;
841
842 vmw_fb_set_par(info);
843 spin_lock_irqsave(&par->dirty.lock, flags);
844 par->dirty.active = true;
845 spin_unlock_irqrestore(&par->dirty.lock, flags);
846
847 return 0;
848}
849
