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fb1d9738 JB |
1 | /************************************************************************** |
2 | * | |
3 | * Copyright © 2007 David Airlie | |
4 | * Copyright © 2009 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 | ||
2d1a8a48 PG |
29 | #include <linux/export.h> |
30 | ||
760285e7 | 31 | #include <drm/drmP.h> |
fb1d9738 JB |
32 | #include "vmwgfx_drv.h" |
33 | ||
760285e7 | 34 | #include <drm/ttm/ttm_placement.h> |
fb1d9738 JB |
35 | |
36 | #define VMW_DIRTY_DELAY (HZ / 30) | |
37 | ||
38 | struct vmw_fb_par { | |
39 | struct vmw_private *vmw_priv; | |
40 | ||
41 | void *vmalloc; | |
42 | ||
43 | struct vmw_dma_buffer *vmw_bo; | |
44 | struct ttm_bo_kmap_obj map; | |
45 | ||
46 | u32 pseudo_palette[17]; | |
47 | ||
48 | unsigned depth; | |
49 | unsigned bpp; | |
50 | ||
51 | unsigned max_width; | |
52 | unsigned max_height; | |
53 | ||
54 | void *bo_ptr; | |
55 | unsigned bo_size; | |
56 | bool bo_iowrite; | |
57 | ||
58 | struct { | |
59 | spinlock_t lock; | |
60 | bool active; | |
61 | unsigned x1; | |
62 | unsigned y1; | |
63 | unsigned x2; | |
64 | unsigned y2; | |
65 | } dirty; | |
66 | }; | |
67 | ||
68 | static int vmw_fb_setcolreg(unsigned regno, unsigned red, unsigned green, | |
69 | unsigned blue, unsigned transp, | |
70 | struct fb_info *info) | |
71 | { | |
72 | struct vmw_fb_par *par = info->par; | |
73 | u32 *pal = par->pseudo_palette; | |
74 | ||
75 | if (regno > 15) { | |
76 | DRM_ERROR("Bad regno %u.\n", regno); | |
77 | return 1; | |
78 | } | |
79 | ||
80 | switch (par->depth) { | |
81 | case 24: | |
82 | case 32: | |
83 | pal[regno] = ((red & 0xff00) << 8) | | |
84 | (green & 0xff00) | | |
85 | ((blue & 0xff00) >> 8); | |
86 | break; | |
87 | default: | |
88 | DRM_ERROR("Bad depth %u, bpp %u.\n", par->depth, par->bpp); | |
89 | return 1; | |
90 | } | |
91 | ||
92 | return 0; | |
93 | } | |
94 | ||
95 | static int vmw_fb_check_var(struct fb_var_screeninfo *var, | |
96 | struct fb_info *info) | |
97 | { | |
98 | int depth = var->bits_per_pixel; | |
99 | struct vmw_fb_par *par = info->par; | |
100 | struct vmw_private *vmw_priv = par->vmw_priv; | |
101 | ||
102 | switch (var->bits_per_pixel) { | |
103 | case 32: | |
104 | depth = (var->transp.length > 0) ? 32 : 24; | |
105 | break; | |
106 | default: | |
107 | DRM_ERROR("Bad bpp %u.\n", var->bits_per_pixel); | |
108 | return -EINVAL; | |
109 | } | |
110 | ||
111 | switch (depth) { | |
112 | case 24: | |
113 | var->red.offset = 16; | |
114 | var->green.offset = 8; | |
115 | var->blue.offset = 0; | |
116 | var->red.length = 8; | |
117 | var->green.length = 8; | |
118 | var->blue.length = 8; | |
119 | var->transp.length = 0; | |
120 | var->transp.offset = 0; | |
121 | break; | |
122 | case 32: | |
123 | var->red.offset = 16; | |
124 | var->green.offset = 8; | |
125 | var->blue.offset = 0; | |
126 | var->red.length = 8; | |
127 | var->green.length = 8; | |
128 | var->blue.length = 8; | |
129 | var->transp.length = 8; | |
130 | var->transp.offset = 24; | |
131 | break; | |
132 | default: | |
133 | DRM_ERROR("Bad depth %u.\n", depth); | |
134 | return -EINVAL; | |
135 | } | |
136 | ||
d7e1958d JB |
137 | if (!(vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) && |
138 | (var->xoffset != 0 || var->yoffset != 0)) { | |
139 | DRM_ERROR("Can not handle panning without display topology\n"); | |
fb1d9738 JB |
140 | return -EINVAL; |
141 | } | |
142 | ||
d7e1958d JB |
143 | if ((var->xoffset + var->xres) > par->max_width || |
144 | (var->yoffset + var->yres) > par->max_height) { | |
fb1d9738 JB |
145 | DRM_ERROR("Requested geom can not fit in framebuffer\n"); |
146 | return -EINVAL; | |
147 | } | |
148 | ||
e133e737 | 149 | if (!vmw_kms_validate_mode_vram(vmw_priv, |
aa6de142 | 150 | var->xres * var->bits_per_pixel/8, |
e133e737 TH |
151 | var->yoffset + var->yres)) { |
152 | DRM_ERROR("Requested geom can not fit in framebuffer\n"); | |
153 | return -EINVAL; | |
154 | } | |
155 | ||
fb1d9738 JB |
156 | return 0; |
157 | } | |
158 | ||
159 | static int vmw_fb_set_par(struct fb_info *info) | |
160 | { | |
161 | struct vmw_fb_par *par = info->par; | |
162 | struct vmw_private *vmw_priv = par->vmw_priv; | |
0bef23f9 MD |
163 | int ret; |
164 | ||
aa6de142 CF |
165 | info->fix.line_length = info->var.xres * info->var.bits_per_pixel/8; |
166 | ||
0bef23f9 MD |
167 | ret = vmw_kms_write_svga(vmw_priv, info->var.xres, info->var.yres, |
168 | info->fix.line_length, | |
169 | par->bpp, par->depth); | |
170 | if (ret) | |
171 | return ret; | |
fb1d9738 | 172 | |
d7e1958d | 173 | if (vmw_priv->capabilities & SVGA_CAP_DISPLAY_TOPOLOGY) { |
fb1d9738 | 174 | /* TODO check if pitch and offset changes */ |
991b7b44 | 175 | vmw_write(vmw_priv, SVGA_REG_NUM_GUEST_DISPLAYS, 1); |
fb1d9738 JB |
176 | vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, 0); |
177 | vmw_write(vmw_priv, SVGA_REG_DISPLAY_IS_PRIMARY, true); | |
178 | vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_X, info->var.xoffset); | |
179 | vmw_write(vmw_priv, SVGA_REG_DISPLAY_POSITION_Y, info->var.yoffset); | |
180 | vmw_write(vmw_priv, SVGA_REG_DISPLAY_WIDTH, info->var.xres); | |
181 | vmw_write(vmw_priv, SVGA_REG_DISPLAY_HEIGHT, info->var.yres); | |
182 | vmw_write(vmw_priv, SVGA_REG_DISPLAY_ID, SVGA_ID_INVALID); | |
fb1d9738 JB |
183 | } |
184 | ||
d7e1958d JB |
185 | /* This is really helpful since if this fails the user |
186 | * can probably not see anything on the screen. | |
187 | */ | |
188 | WARN_ON(vmw_read(vmw_priv, SVGA_REG_FB_OFFSET) != 0); | |
189 | ||
fb1d9738 JB |
190 | return 0; |
191 | } | |
192 | ||
193 | static int vmw_fb_pan_display(struct fb_var_screeninfo *var, | |
194 | struct fb_info *info) | |
195 | { | |
196 | return 0; | |
197 | } | |
198 | ||
199 | static int vmw_fb_blank(int blank, struct fb_info *info) | |
200 | { | |
201 | return 0; | |
202 | } | |
203 | ||
204 | /* | |
205 | * Dirty code | |
206 | */ | |
207 | ||
208 | static void vmw_fb_dirty_flush(struct vmw_fb_par *par) | |
209 | { | |
210 | struct vmw_private *vmw_priv = par->vmw_priv; | |
211 | struct fb_info *info = vmw_priv->fb_info; | |
212 | int stride = (info->fix.line_length / 4); | |
213 | int *src = (int *)info->screen_base; | |
214 | __le32 __iomem *vram_mem = par->bo_ptr; | |
215 | unsigned long flags; | |
216 | unsigned x, y, w, h; | |
217 | int i, k; | |
218 | struct { | |
219 | uint32_t header; | |
220 | SVGAFifoCmdUpdate body; | |
221 | } *cmd; | |
222 | ||
09e2601b TH |
223 | if (vmw_priv->suspended) |
224 | return; | |
225 | ||
fb1d9738 JB |
226 | spin_lock_irqsave(&par->dirty.lock, flags); |
227 | if (!par->dirty.active) { | |
228 | spin_unlock_irqrestore(&par->dirty.lock, flags); | |
229 | return; | |
230 | } | |
231 | x = par->dirty.x1; | |
232 | y = par->dirty.y1; | |
233 | w = min(par->dirty.x2, info->var.xres) - x; | |
234 | h = min(par->dirty.y2, info->var.yres) - y; | |
235 | par->dirty.x1 = par->dirty.x2 = 0; | |
236 | par->dirty.y1 = par->dirty.y2 = 0; | |
237 | spin_unlock_irqrestore(&par->dirty.lock, flags); | |
238 | ||
239 | for (i = y * stride; i < info->fix.smem_len / 4; i += stride) { | |
240 | for (k = i+x; k < i+x+w && k < info->fix.smem_len / 4; k++) | |
241 | iowrite32(src[k], vram_mem + k); | |
242 | } | |
243 | ||
244 | #if 0 | |
245 | DRM_INFO("%s, (%u, %u) (%ux%u)\n", __func__, x, y, w, h); | |
246 | #endif | |
247 | ||
248 | cmd = vmw_fifo_reserve(vmw_priv, sizeof(*cmd)); | |
249 | if (unlikely(cmd == NULL)) { | |
250 | DRM_ERROR("Fifo reserve failed.\n"); | |
251 | return; | |
252 | } | |
253 | ||
254 | cmd->header = cpu_to_le32(SVGA_CMD_UPDATE); | |
255 | cmd->body.x = cpu_to_le32(x); | |
256 | cmd->body.y = cpu_to_le32(y); | |
257 | cmd->body.width = cpu_to_le32(w); | |
258 | cmd->body.height = cpu_to_le32(h); | |
259 | vmw_fifo_commit(vmw_priv, sizeof(*cmd)); | |
260 | } | |
261 | ||
262 | static void vmw_fb_dirty_mark(struct vmw_fb_par *par, | |
263 | unsigned x1, unsigned y1, | |
264 | unsigned width, unsigned height) | |
265 | { | |
266 | struct fb_info *info = par->vmw_priv->fb_info; | |
267 | unsigned long flags; | |
268 | unsigned x2 = x1 + width; | |
269 | unsigned y2 = y1 + height; | |
270 | ||
271 | spin_lock_irqsave(&par->dirty.lock, flags); | |
272 | if (par->dirty.x1 == par->dirty.x2) { | |
273 | par->dirty.x1 = x1; | |
274 | par->dirty.y1 = y1; | |
275 | par->dirty.x2 = x2; | |
276 | par->dirty.y2 = y2; | |
277 | /* if we are active start the dirty work | |
278 | * we share the work with the defio system */ | |
279 | if (par->dirty.active) | |
280 | schedule_delayed_work(&info->deferred_work, VMW_DIRTY_DELAY); | |
281 | } else { | |
282 | if (x1 < par->dirty.x1) | |
283 | par->dirty.x1 = x1; | |
284 | if (y1 < par->dirty.y1) | |
285 | par->dirty.y1 = y1; | |
286 | if (x2 > par->dirty.x2) | |
287 | par->dirty.x2 = x2; | |
288 | if (y2 > par->dirty.y2) | |
289 | par->dirty.y2 = y2; | |
290 | } | |
291 | spin_unlock_irqrestore(&par->dirty.lock, flags); | |
292 | } | |
293 | ||
294 | static void vmw_deferred_io(struct fb_info *info, | |
295 | struct list_head *pagelist) | |
296 | { | |
297 | struct vmw_fb_par *par = info->par; | |
298 | unsigned long start, end, min, max; | |
299 | unsigned long flags; | |
300 | struct page *page; | |
301 | int y1, y2; | |
302 | ||
303 | min = ULONG_MAX; | |
304 | max = 0; | |
305 | list_for_each_entry(page, pagelist, lru) { | |
306 | start = page->index << PAGE_SHIFT; | |
307 | end = start + PAGE_SIZE - 1; | |
308 | min = min(min, start); | |
309 | max = max(max, end); | |
310 | } | |
311 | ||
312 | if (min < max) { | |
313 | y1 = min / info->fix.line_length; | |
314 | y2 = (max / info->fix.line_length) + 1; | |
315 | ||
316 | spin_lock_irqsave(&par->dirty.lock, flags); | |
317 | par->dirty.x1 = 0; | |
318 | par->dirty.y1 = y1; | |
319 | par->dirty.x2 = info->var.xres; | |
320 | par->dirty.y2 = y2; | |
321 | spin_unlock_irqrestore(&par->dirty.lock, flags); | |
322 | } | |
323 | ||
324 | vmw_fb_dirty_flush(par); | |
325 | }; | |
326 | ||
327 | struct fb_deferred_io vmw_defio = { | |
328 | .delay = VMW_DIRTY_DELAY, | |
329 | .deferred_io = vmw_deferred_io, | |
330 | }; | |
331 | ||
332 | /* | |
333 | * Draw code | |
334 | */ | |
335 | ||
336 | static void vmw_fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) | |
337 | { | |
338 | cfb_fillrect(info, rect); | |
339 | vmw_fb_dirty_mark(info->par, rect->dx, rect->dy, | |
340 | rect->width, rect->height); | |
341 | } | |
342 | ||
343 | static void vmw_fb_copyarea(struct fb_info *info, const struct fb_copyarea *region) | |
344 | { | |
345 | cfb_copyarea(info, region); | |
346 | vmw_fb_dirty_mark(info->par, region->dx, region->dy, | |
347 | region->width, region->height); | |
348 | } | |
349 | ||
350 | static void vmw_fb_imageblit(struct fb_info *info, const struct fb_image *image) | |
351 | { | |
352 | cfb_imageblit(info, image); | |
353 | vmw_fb_dirty_mark(info->par, image->dx, image->dy, | |
354 | image->width, image->height); | |
355 | } | |
356 | ||
357 | /* | |
358 | * Bring up code | |
359 | */ | |
360 | ||
361 | static struct fb_ops vmw_fb_ops = { | |
362 | .owner = THIS_MODULE, | |
363 | .fb_check_var = vmw_fb_check_var, | |
364 | .fb_set_par = vmw_fb_set_par, | |
365 | .fb_setcolreg = vmw_fb_setcolreg, | |
366 | .fb_fillrect = vmw_fb_fillrect, | |
367 | .fb_copyarea = vmw_fb_copyarea, | |
368 | .fb_imageblit = vmw_fb_imageblit, | |
369 | .fb_pan_display = vmw_fb_pan_display, | |
370 | .fb_blank = vmw_fb_blank, | |
371 | }; | |
372 | ||
373 | static int vmw_fb_create_bo(struct vmw_private *vmw_priv, | |
374 | size_t size, struct vmw_dma_buffer **out) | |
375 | { | |
376 | struct vmw_dma_buffer *vmw_bo; | |
377 | struct ttm_placement ne_placement = vmw_vram_ne_placement; | |
378 | int ret; | |
379 | ||
380 | ne_placement.lpfn = (size + PAGE_SIZE - 1) >> PAGE_SHIFT; | |
381 | ||
294adf7d | 382 | (void) ttm_write_lock(&vmw_priv->reservation_sem, false); |
fb1d9738 JB |
383 | |
384 | vmw_bo = kmalloc(sizeof(*vmw_bo), GFP_KERNEL); | |
294adf7d TH |
385 | if (!vmw_bo) { |
386 | ret = -ENOMEM; | |
fb1d9738 | 387 | goto err_unlock; |
294adf7d | 388 | } |
fb1d9738 JB |
389 | |
390 | ret = vmw_dmabuf_init(vmw_priv, vmw_bo, size, | |
391 | &ne_placement, | |
392 | false, | |
393 | &vmw_dmabuf_bo_free); | |
394 | if (unlikely(ret != 0)) | |
395 | goto err_unlock; /* init frees the buffer on failure */ | |
396 | ||
397 | *out = vmw_bo; | |
398 | ||
399 | ttm_write_unlock(&vmw_priv->fbdev_master.lock); | |
400 | ||
401 | return 0; | |
402 | ||
403 | err_unlock: | |
404 | ttm_write_unlock(&vmw_priv->fbdev_master.lock); | |
405 | return ret; | |
406 | } | |
407 | ||
408 | int vmw_fb_init(struct vmw_private *vmw_priv) | |
409 | { | |
410 | struct device *device = &vmw_priv->dev->pdev->dev; | |
411 | struct vmw_fb_par *par; | |
412 | struct fb_info *info; | |
413 | unsigned initial_width, initial_height; | |
414 | unsigned fb_width, fb_height; | |
6558429b | 415 | unsigned fb_bpp, fb_depth, fb_offset, fb_pitch, fb_size; |
fb1d9738 JB |
416 | int ret; |
417 | ||
6558429b | 418 | fb_bpp = 32; |
fb1d9738 JB |
419 | fb_depth = 24; |
420 | ||
d7e1958d JB |
421 | /* XXX As shouldn't these be as well. */ |
422 | fb_width = min(vmw_priv->fb_max_width, (unsigned)2048); | |
423 | fb_height = min(vmw_priv->fb_max_height, (unsigned)2048); | |
fb1d9738 | 424 | |
eb4f923b JB |
425 | initial_width = min(vmw_priv->initial_width, fb_width); |
426 | initial_height = min(vmw_priv->initial_height, fb_height); | |
fb1d9738 | 427 | |
6558429b | 428 | fb_pitch = fb_width * fb_bpp / 8; |
d7e1958d | 429 | fb_size = fb_pitch * fb_height; |
fb1d9738 | 430 | fb_offset = vmw_read(vmw_priv, SVGA_REG_FB_OFFSET); |
fb1d9738 JB |
431 | |
432 | info = framebuffer_alloc(sizeof(*par), device); | |
433 | if (!info) | |
434 | return -ENOMEM; | |
435 | ||
436 | /* | |
437 | * Par | |
438 | */ | |
439 | vmw_priv->fb_info = info; | |
440 | par = info->par; | |
441 | par->vmw_priv = vmw_priv; | |
442 | par->depth = fb_depth; | |
6558429b | 443 | par->bpp = fb_bpp; |
fb1d9738 JB |
444 | par->vmalloc = NULL; |
445 | par->max_width = fb_width; | |
446 | par->max_height = fb_height; | |
447 | ||
448 | /* | |
449 | * Create buffers and alloc memory | |
450 | */ | |
451 | par->vmalloc = vmalloc(fb_size); | |
452 | if (unlikely(par->vmalloc == NULL)) { | |
453 | ret = -ENOMEM; | |
454 | goto err_free; | |
455 | } | |
456 | ||
457 | ret = vmw_fb_create_bo(vmw_priv, fb_size, &par->vmw_bo); | |
458 | if (unlikely(ret != 0)) | |
459 | goto err_free; | |
460 | ||
461 | ret = ttm_bo_kmap(&par->vmw_bo->base, | |
462 | 0, | |
463 | par->vmw_bo->base.num_pages, | |
464 | &par->map); | |
465 | if (unlikely(ret != 0)) | |
466 | goto err_unref; | |
467 | par->bo_ptr = ttm_kmap_obj_virtual(&par->map, &par->bo_iowrite); | |
468 | par->bo_size = fb_size; | |
469 | ||
470 | /* | |
471 | * Fixed and var | |
472 | */ | |
473 | strcpy(info->fix.id, "svgadrmfb"); | |
474 | info->fix.type = FB_TYPE_PACKED_PIXELS; | |
475 | info->fix.visual = FB_VISUAL_TRUECOLOR; | |
476 | info->fix.type_aux = 0; | |
477 | info->fix.xpanstep = 1; /* doing it in hw */ | |
478 | info->fix.ypanstep = 1; /* doing it in hw */ | |
479 | info->fix.ywrapstep = 0; | |
480 | info->fix.accel = FB_ACCEL_NONE; | |
481 | info->fix.line_length = fb_pitch; | |
482 | ||
483 | info->fix.smem_start = 0; | |
484 | info->fix.smem_len = fb_size; | |
485 | ||
fb1d9738 JB |
486 | info->pseudo_palette = par->pseudo_palette; |
487 | info->screen_base = par->vmalloc; | |
488 | info->screen_size = fb_size; | |
489 | ||
490 | info->flags = FBINFO_DEFAULT; | |
491 | info->fbops = &vmw_fb_ops; | |
492 | ||
493 | /* 24 depth per default */ | |
494 | info->var.red.offset = 16; | |
495 | info->var.green.offset = 8; | |
496 | info->var.blue.offset = 0; | |
497 | info->var.red.length = 8; | |
498 | info->var.green.length = 8; | |
499 | info->var.blue.length = 8; | |
500 | info->var.transp.offset = 0; | |
501 | info->var.transp.length = 0; | |
502 | ||
503 | info->var.xres_virtual = fb_width; | |
504 | info->var.yres_virtual = fb_height; | |
505 | info->var.bits_per_pixel = par->bpp; | |
506 | info->var.xoffset = 0; | |
507 | info->var.yoffset = 0; | |
508 | info->var.activate = FB_ACTIVATE_NOW; | |
509 | info->var.height = -1; | |
510 | info->var.width = -1; | |
511 | ||
512 | info->var.xres = initial_width; | |
513 | info->var.yres = initial_height; | |
514 | ||
fb2a99e1 | 515 | /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ |
fb1d9738 | 516 | |
1471ca9a MS |
517 | info->apertures = alloc_apertures(1); |
518 | if (!info->apertures) { | |
519 | ret = -ENOMEM; | |
520 | goto err_aper; | |
521 | } | |
522 | info->apertures->ranges[0].base = vmw_priv->vram_start; | |
523 | info->apertures->ranges[0].size = vmw_priv->vram_size; | |
f2d12b8e | 524 | |
fb1d9738 JB |
525 | /* |
526 | * Dirty & Deferred IO | |
527 | */ | |
528 | par->dirty.x1 = par->dirty.x2 = 0; | |
c39721c7 | 529 | par->dirty.y1 = par->dirty.y2 = 0; |
fb1d9738 JB |
530 | par->dirty.active = true; |
531 | spin_lock_init(&par->dirty.lock); | |
532 | info->fbdefio = &vmw_defio; | |
533 | fb_deferred_io_init(info); | |
534 | ||
535 | ret = register_framebuffer(info); | |
536 | if (unlikely(ret != 0)) | |
537 | goto err_defio; | |
538 | ||
539 | return 0; | |
540 | ||
541 | err_defio: | |
542 | fb_deferred_io_cleanup(info); | |
1471ca9a | 543 | err_aper: |
fb1d9738 JB |
544 | ttm_bo_kunmap(&par->map); |
545 | err_unref: | |
546 | ttm_bo_unref((struct ttm_buffer_object **)&par->vmw_bo); | |
547 | err_free: | |
548 | vfree(par->vmalloc); | |
549 | framebuffer_release(info); | |
550 | vmw_priv->fb_info = NULL; | |
551 | ||
552 | return ret; | |
553 | } | |
554 | ||
555 | int vmw_fb_close(struct vmw_private *vmw_priv) | |
556 | { | |
557 | struct fb_info *info; | |
558 | struct vmw_fb_par *par; | |
559 | struct ttm_buffer_object *bo; | |
560 | ||
561 | if (!vmw_priv->fb_info) | |
562 | return 0; | |
563 | ||
564 | info = vmw_priv->fb_info; | |
565 | par = info->par; | |
566 | bo = &par->vmw_bo->base; | |
567 | par->vmw_bo = NULL; | |
568 | ||
569 | /* ??? order */ | |
570 | fb_deferred_io_cleanup(info); | |
571 | unregister_framebuffer(info); | |
572 | ||
573 | ttm_bo_kunmap(&par->map); | |
574 | ttm_bo_unref(&bo); | |
575 | ||
576 | vfree(par->vmalloc); | |
577 | framebuffer_release(info); | |
578 | ||
579 | return 0; | |
580 | } | |
581 | ||
fb1d9738 JB |
582 | int vmw_fb_off(struct vmw_private *vmw_priv) |
583 | { | |
584 | struct fb_info *info; | |
585 | struct vmw_fb_par *par; | |
586 | unsigned long flags; | |
587 | ||
588 | if (!vmw_priv->fb_info) | |
589 | return -EINVAL; | |
590 | ||
591 | info = vmw_priv->fb_info; | |
592 | par = info->par; | |
593 | ||
594 | spin_lock_irqsave(&par->dirty.lock, flags); | |
595 | par->dirty.active = false; | |
596 | spin_unlock_irqrestore(&par->dirty.lock, flags); | |
597 | ||
43829731 | 598 | flush_delayed_work(&info->deferred_work); |
fb1d9738 JB |
599 | |
600 | par->bo_ptr = NULL; | |
601 | ttm_bo_kunmap(&par->map); | |
602 | ||
b37a6b9a | 603 | vmw_dmabuf_unpin(vmw_priv, par->vmw_bo, false); |
fb1d9738 JB |
604 | |
605 | return 0; | |
606 | } | |
607 | ||
608 | int vmw_fb_on(struct vmw_private *vmw_priv) | |
609 | { | |
610 | struct fb_info *info; | |
611 | struct vmw_fb_par *par; | |
612 | unsigned long flags; | |
613 | bool dummy; | |
614 | int ret; | |
615 | ||
616 | if (!vmw_priv->fb_info) | |
617 | return -EINVAL; | |
618 | ||
619 | info = vmw_priv->fb_info; | |
620 | par = info->par; | |
621 | ||
622 | /* we are already active */ | |
623 | if (par->bo_ptr != NULL) | |
624 | return 0; | |
625 | ||
626 | /* Make sure that all overlays are stoped when we take over */ | |
627 | vmw_overlay_stop_all(vmw_priv); | |
628 | ||
d991ef03 | 629 | ret = vmw_dmabuf_to_start_of_vram(vmw_priv, par->vmw_bo, true, false); |
fb1d9738 JB |
630 | if (unlikely(ret != 0)) { |
631 | DRM_ERROR("could not move buffer to start of VRAM\n"); | |
632 | goto err_no_buffer; | |
633 | } | |
634 | ||
635 | ret = ttm_bo_kmap(&par->vmw_bo->base, | |
636 | 0, | |
637 | par->vmw_bo->base.num_pages, | |
638 | &par->map); | |
639 | BUG_ON(ret != 0); | |
640 | par->bo_ptr = ttm_kmap_obj_virtual(&par->map, &dummy); | |
641 | ||
642 | spin_lock_irqsave(&par->dirty.lock, flags); | |
643 | par->dirty.active = true; | |
644 | spin_unlock_irqrestore(&par->dirty.lock, flags); | |
645 | ||
646 | err_no_buffer: | |
647 | vmw_fb_set_par(info); | |
648 | ||
649 | vmw_fb_dirty_mark(par, 0, 0, info->var.xres, info->var.yres); | |
650 | ||
651 | /* If there already was stuff dirty we wont | |
652 | * schedule a new work, so lets do it now */ | |
653 | schedule_delayed_work(&info->deferred_work, 0); | |
654 | ||
655 | return 0; | |
656 | } |