1 /**************************************************************************
2 *
3 * Copyright © 2007 David Airlie
4 * Copyright © 2009-2015 VMware, Inc., Palo Alto, CA., USA
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
22 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
23 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
24 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
25 * USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28
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
39 struct 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
vmw_fb_setcolreg(unsigned regno,unsigned red,unsigned green,unsigned blue,unsigned transp,struct fb_info * info)74 static 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
vmw_fb_check_var(struct fb_var_screeninfo * var,struct fb_info * info)102 static 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
vmw_fb_blank(int blank,struct fb_info * info)160 static int vmw_fb_blank(int blank, struct fb_info *info)
161 {
162 return 0;
163 }
164
165 /*
166 * Dirty code
167 */
168
vmw_fb_dirty_flush(struct work_struct * work)169 static 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 * Handle panning when copying from vmalloc to framebuffer.
198 * Clip dirty area to framebuffer.
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 }
244 out_unlock:
245 mutex_unlock(&par->bo_mutex);
246 }
247
vmw_fb_dirty_mark(struct vmw_fb_par * par,unsigned x1,unsigned y1,unsigned width,unsigned height)248 static 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 /* if we are active start the dirty work
263 * we share the work with the defio system */
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
vmw_fb_pan_display(struct fb_var_screeninfo * var,struct fb_info * info)280 static 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
vmw_deferred_io(struct fb_info * info,struct list_head * pagelist)302 static 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 * Since we've already waited on this work once, try to
333 * execute asap.
334 */
335 cancel_delayed_work(&par->local_work);
336 schedule_delayed_work(&par->local_work, 0);
337 }
338 };
339
340 static struct fb_deferred_io vmw_defio = {
341 .delay = VMW_DIRTY_DELAY,
342 .deferred_io = vmw_deferred_io,
343 };
344
345 /*
346 * Draw code
347 */
348
vmw_fb_fillrect(struct fb_info * info,const struct fb_fillrect * rect)349 static 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
vmw_fb_copyarea(struct fb_info * info,const struct fb_copyarea * region)356 static 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
vmw_fb_imageblit(struct fb_info * info,const struct fb_image * image)363 static 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 * Bring up code
372 */
373
vmw_fb_create_bo(struct vmw_private * vmw_priv,size_t size,struct vmw_dma_buffer ** out)374 static 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; /* init frees the buffer on failure */
394
395 *out = vmw_bo;
396 ttm_write_unlock(&vmw_priv->reservation_sem);
397
398 return 0;
399
400 err_unlock:
401 ttm_write_unlock(&vmw_priv->reservation_sem);
402 return ret;
403 }
404
vmw_fb_compute_depth(struct fb_var_screeninfo * var,int * depth)405 static 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
vmw_fb_kms_detach(struct vmw_fb_par * par,bool detach_bo,bool unref_bo)420 static 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 /* Detach the KMS framebuffer from crtcs */
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
vmw_fb_kms_framebuffer(struct fb_info * info)466 static 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 /* Need new buffer object ? */
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 if (!par->bo_ptr) {
521 /*
522 * Pin before mapping. Since we don't know in what placement
523 * to pin, call into KMS to do it for us.
524 */
525 ret = vfb->pin(vfb);
526 if (ret) {
527 DRM_ERROR("Could not pin the fbdev framebuffer.\n");
528 return ret;
529 }
530
531 ret = ttm_bo_kmap(&par->vmw_bo->base, 0,
532 par->vmw_bo->base.num_pages, &par->map);
533 if (ret) {
534 vfb->unpin(vfb);
535 DRM_ERROR("Could not map the fbdev framebuffer.\n");
536 return ret;
537 }
538
539 par->bo_ptr = ttm_kmap_obj_virtual(&par->map, &par->bo_iowrite);
540 }
541
542 return 0;
543 }
544
vmw_fb_set_par(struct fb_info * info)545 static int vmw_fb_set_par(struct fb_info *info)
546 {
547 struct vmw_fb_par *par = info->par;
548 struct vmw_private *vmw_priv = par->vmw_priv;
549 struct drm_mode_set set;
550 struct fb_var_screeninfo *var = &info->var;
551 struct drm_display_mode new_mode = { DRM_MODE("fb_mode",
552 DRM_MODE_TYPE_DRIVER,
553 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
554 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
555 };
556 struct drm_display_mode *old_mode;
557 struct drm_display_mode *mode;
558 int ret;
559
560 old_mode = par->set_mode;
561 mode = drm_mode_duplicate(vmw_priv->dev, &new_mode);
562 if (!mode) {
563 DRM_ERROR("Could not create new fb mode.\n");
564 return -ENOMEM;
565 }
566
567 mode->hdisplay = var->xres;
568 mode->vdisplay = var->yres;
569 vmw_guess_mode_timing(mode);
570
571 if (old_mode && drm_mode_equal(old_mode, mode)) {
572 drm_mode_destroy(vmw_priv->dev, mode);
573 mode = old_mode;
574 old_mode = NULL;
575 } else if (!vmw_kms_validate_mode_vram(vmw_priv,
576 mode->hdisplay *
577 DIV_ROUND_UP(var->bits_per_pixel, 8),
578 mode->vdisplay)) {
579 drm_mode_destroy(vmw_priv->dev, mode);
580 return -EINVAL;
581 }
582
583 mutex_lock(&par->bo_mutex);
584 drm_modeset_lock_all(vmw_priv->dev);
585 ret = vmw_fb_kms_framebuffer(info);
586 if (ret)
587 goto out_unlock;
588
589 par->fb_x = var->xoffset;
590 par->fb_y = var->yoffset;
591
592 set.crtc = par->crtc;
593 set.x = 0;
594 set.y = 0;
595 set.mode = mode;
596 set.fb = par->set_fb;
597 set.num_connectors = 1;
598 set.connectors = &par->con;
599
600 ret = drm_mode_set_config_internal(&set);
601 if (ret)
602 goto out_unlock;
603
604 vmw_fb_dirty_mark(par, par->fb_x, par->fb_y,
605 par->set_fb->width, par->set_fb->height);
606
607 /* If there already was stuff dirty we wont
608 * schedule a new work, so lets do it now */
609
610 schedule_delayed_work(&par->local_work, 0);
611
612 out_unlock:
613 if (old_mode)
614 drm_mode_destroy(vmw_priv->dev, old_mode);
615 par->set_mode = mode;
616
617 drm_modeset_unlock_all(vmw_priv->dev);
618 mutex_unlock(&par->bo_mutex);
619
620 return ret;
621 }
622
623
624 static struct fb_ops vmw_fb_ops = {
625 .owner = THIS_MODULE,
626 .fb_check_var = vmw_fb_check_var,
627 .fb_set_par = vmw_fb_set_par,
628 .fb_setcolreg = vmw_fb_setcolreg,
629 .fb_fillrect = vmw_fb_fillrect,
630 .fb_copyarea = vmw_fb_copyarea,
631 .fb_imageblit = vmw_fb_imageblit,
632 .fb_pan_display = vmw_fb_pan_display,
633 .fb_blank = vmw_fb_blank,
634 };
635
vmw_fb_init(struct vmw_private * vmw_priv)636 int vmw_fb_init(struct vmw_private *vmw_priv)
637 {
638 struct device *device = &vmw_priv->dev->pdev->dev;
639 struct vmw_fb_par *par;
640 struct fb_info *info;
641 unsigned fb_width, fb_height;
642 unsigned fb_bpp, fb_depth, fb_offset, fb_pitch, fb_size;
643 struct drm_display_mode *init_mode;
644 int ret;
645
646 fb_bpp = 32;
647 fb_depth = 24;
648
649 /* XXX As shouldn't these be as well. */
650 fb_width = min(vmw_priv->fb_max_width, (unsigned)2048);
651 fb_height = min(vmw_priv->fb_max_height, (unsigned)2048);
652
653 fb_pitch = fb_width * fb_bpp / 8;
654 fb_size = fb_pitch * fb_height;
655 fb_offset = vmw_read(vmw_priv, SVGA_REG_FB_OFFSET);
656
657 info = framebuffer_alloc(sizeof(*par), device);
658 if (!info)
659 return -ENOMEM;
660
661 /*
662 * Par
663 */
664 vmw_priv->fb_info = info;
665 par = info->par;
666 memset(par, 0, sizeof(*par));
667 INIT_DELAYED_WORK(&par->local_work, &vmw_fb_dirty_flush);
668 par->vmw_priv = vmw_priv;
669 par->vmalloc = NULL;
670 par->max_width = fb_width;
671 par->max_height = fb_height;
672
673 drm_modeset_lock_all(vmw_priv->dev);
674 ret = vmw_kms_fbdev_init_data(vmw_priv, 0, par->max_width,
675 par->max_height, &par->con,
676 &par->crtc, &init_mode);
677 if (ret) {
678 drm_modeset_unlock_all(vmw_priv->dev);
679 goto err_kms;
680 }
681
682 info->var.xres = init_mode->hdisplay;
683 info->var.yres = init_mode->vdisplay;
684 drm_modeset_unlock_all(vmw_priv->dev);
685
686 /*
687 * Create buffers and alloc memory
688 */
689 par->vmalloc = vzalloc(fb_size);
690 if (unlikely(par->vmalloc == NULL)) {
691 ret = -ENOMEM;
692 goto err_free;
693 }
694
695 /*
696 * Fixed and var
697 */
698 strcpy(info->fix.id, "svgadrmfb");
699 info->fix.type = FB_TYPE_PACKED_PIXELS;
700 info->fix.visual = FB_VISUAL_TRUECOLOR;
701 info->fix.type_aux = 0;
702 info->fix.xpanstep = 1; /* doing it in hw */
703 info->fix.ypanstep = 1; /* doing it in hw */
704 info->fix.ywrapstep = 0;
705 info->fix.accel = FB_ACCEL_NONE;
706 info->fix.line_length = fb_pitch;
707
708 info->fix.smem_start = 0;
709 info->fix.smem_len = fb_size;
710
711 info->pseudo_palette = par->pseudo_palette;
712 info->screen_base = (char __iomem *)par->vmalloc;
713 info->screen_size = fb_size;
714
715 info->flags = FBINFO_DEFAULT;
716 info->fbops = &vmw_fb_ops;
717
718 /* 24 depth per default */
719 info->var.red.offset = 16;
720 info->var.green.offset = 8;
721 info->var.blue.offset = 0;
722 info->var.red.length = 8;
723 info->var.green.length = 8;
724 info->var.blue.length = 8;
725 info->var.transp.offset = 0;
726 info->var.transp.length = 0;
727
728 info->var.xres_virtual = fb_width;
729 info->var.yres_virtual = fb_height;
730 info->var.bits_per_pixel = fb_bpp;
731 info->var.xoffset = 0;
732 info->var.yoffset = 0;
733 info->var.activate = FB_ACTIVATE_NOW;
734 info->var.height = -1;
735 info->var.width = -1;
736
737 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
738 info->apertures = alloc_apertures(1);
739 if (!info->apertures) {
740 ret = -ENOMEM;
741 goto err_aper;
742 }
743 info->apertures->ranges[0].base = vmw_priv->vram_start;
744 info->apertures->ranges[0].size = vmw_priv->vram_size;
745
746 /*
747 * Dirty & Deferred IO
748 */
749 par->dirty.x1 = par->dirty.x2 = 0;
750 par->dirty.y1 = par->dirty.y2 = 0;
751 par->dirty.active = true;
752 spin_lock_init(&par->dirty.lock);
753 mutex_init(&par->bo_mutex);
754 info->fbdefio = &vmw_defio;
755 fb_deferred_io_init(info);
756
757 ret = register_framebuffer(info);
758 if (unlikely(ret != 0))
759 goto err_defio;
760
761 vmw_fb_set_par(info);
762
763 return 0;
764
765 err_defio:
766 fb_deferred_io_cleanup(info);
767 err_aper:
768 err_free:
769 vfree(par->vmalloc);
770 err_kms:
771 framebuffer_release(info);
772 vmw_priv->fb_info = NULL;
773
774 return ret;
775 }
776
vmw_fb_close(struct vmw_private * vmw_priv)777 int vmw_fb_close(struct vmw_private *vmw_priv)
778 {
779 struct fb_info *info;
780 struct vmw_fb_par *par;
781
782 if (!vmw_priv->fb_info)
783 return 0;
784
785 info = vmw_priv->fb_info;
786 par = info->par;
787
788 /* ??? order */
789 fb_deferred_io_cleanup(info);
790 cancel_delayed_work_sync(&par->local_work);
791 unregister_framebuffer(info);
792
793 (void) vmw_fb_kms_detach(par, true, true);
794
795 vfree(par->vmalloc);
796 framebuffer_release(info);
797
798 return 0;
799 }
800
vmw_fb_off(struct vmw_private * vmw_priv)801 int vmw_fb_off(struct vmw_private *vmw_priv)
802 {
803 struct fb_info *info;
804 struct vmw_fb_par *par;
805 unsigned long flags;
806
807 if (!vmw_priv->fb_info)
808 return -EINVAL;
809
810 info = vmw_priv->fb_info;
811 par = info->par;
812
813 spin_lock_irqsave(&par->dirty.lock, flags);
814 par->dirty.active = false;
815 spin_unlock_irqrestore(&par->dirty.lock, flags);
816
817 flush_delayed_work(&info->deferred_work);
818 flush_delayed_work(&par->local_work);
819
820 mutex_lock(&par->bo_mutex);
821 (void) vmw_fb_kms_detach(par, true, false);
822 mutex_unlock(&par->bo_mutex);
823
824 return 0;
825 }
826
vmw_fb_on(struct vmw_private * vmw_priv)827 int vmw_fb_on(struct vmw_private *vmw_priv)
828 {
829 struct fb_info *info;
830 struct vmw_fb_par *par;
831 unsigned long flags;
832
833 if (!vmw_priv->fb_info)
834 return -EINVAL;
835
836 info = vmw_priv->fb_info;
837 par = info->par;
838
839 vmw_fb_set_par(info);
840 spin_lock_irqsave(&par->dirty.lock, flags);
841 par->dirty.active = true;
842 spin_unlock_irqrestore(&par->dirty.lock, flags);
843
844 return 0;
845 }
846