Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 1 | /************************************************************************** |
| 2 | * |
| 3 | * Copyright © 2007 David Airlie |
Sinclair Yeh | 54fbde8 | 2015-07-29 12:38:02 -0700 | [diff] [blame] | 4 | * Copyright © 2009-2015 VMware, Inc., Palo Alto, CA., USA |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 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 | |
Paul Gortmaker | 2d1a8a4 | 2011-08-30 18:16:33 -0400 | [diff] [blame] | 29 | #include <linux/export.h> |
| 30 | |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 31 | #include <drm/drmP.h> |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 32 | #include "vmwgfx_drv.h" |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 33 | #include "vmwgfx_kms.h" |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 34 | |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 35 | #include <drm/ttm/ttm_placement.h> |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 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 | |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 44 | struct mutex bo_mutex; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 45 | struct vmw_dma_buffer *vmw_bo; |
| 46 | struct ttm_bo_kmap_obj map; |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 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; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 54 | |
| 55 | u32 pseudo_palette[17]; |
| 56 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 57 | unsigned max_width; |
| 58 | unsigned max_height; |
| 59 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 60 | struct { |
| 61 | spinlock_t lock; |
| 62 | bool active; |
| 63 | unsigned x1; |
| 64 | unsigned y1; |
| 65 | unsigned x2; |
| 66 | unsigned y2; |
| 67 | } dirty; |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 68 | |
| 69 | struct drm_crtc *crtc; |
| 70 | struct drm_connector *con; |
Thomas Hellstrom | 772269f | 2015-08-18 09:07:38 -0700 | [diff] [blame] | 71 | struct delayed_work local_work; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 72 | }; |
| 73 | |
| 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 | |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 86 | switch (par->set_fb->depth) { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 87 | case 24: |
| 88 | case 32: |
| 89 | pal[regno] = ((red & 0xff00) << 8) | |
| 90 | (green & 0xff00) | |
| 91 | ((blue & 0xff00) >> 8); |
| 92 | break; |
| 93 | default: |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 94 | DRM_ERROR("Bad depth %u, bpp %u.\n", par->set_fb->depth, |
| 95 | par->set_fb->bits_per_pixel); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 96 | return 1; |
| 97 | } |
| 98 | |
| 99 | return 0; |
| 100 | } |
| 101 | |
| 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 | |
Jakob Bornecrantz | d7e1958 | 2010-05-28 11:21:59 +0200 | [diff] [blame] | 144 | if ((var->xoffset + var->xres) > par->max_width || |
| 145 | (var->yoffset + var->yres) > par->max_height) { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 146 | DRM_ERROR("Requested geom can not fit in framebuffer\n"); |
| 147 | return -EINVAL; |
| 148 | } |
| 149 | |
Thomas Hellstrom | e133e73 | 2010-10-05 12:43:04 +0200 | [diff] [blame] | 150 | if (!vmw_kms_validate_mode_vram(vmw_priv, |
Christopher Friedt | aa6de14 | 2014-02-01 10:01:15 -0500 | [diff] [blame] | 151 | var->xres * var->bits_per_pixel/8, |
Thomas Hellstrom | e133e73 | 2010-10-05 12:43:04 +0200 | [diff] [blame] | 152 | var->yoffset + var->yres)) { |
| 153 | DRM_ERROR("Requested geom can not fit in framebuffer\n"); |
| 154 | return -EINVAL; |
| 155 | } |
| 156 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 157 | return 0; |
| 158 | } |
| 159 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 160 | static int vmw_fb_blank(int blank, struct fb_info *info) |
| 161 | { |
| 162 | return 0; |
| 163 | } |
| 164 | |
| 165 | /* |
| 166 | * Dirty code |
| 167 | */ |
| 168 | |
Thomas Hellstrom | 772269f | 2015-08-18 09:07:38 -0700 | [diff] [blame] | 169 | static void vmw_fb_dirty_flush(struct work_struct *work) |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 170 | { |
Thomas Hellstrom | 772269f | 2015-08-18 09:07:38 -0700 | [diff] [blame] | 171 | struct vmw_fb_par *par = container_of(work, struct vmw_fb_par, |
| 172 | local_work.work); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 173 | struct vmw_private *vmw_priv = par->vmw_priv; |
| 174 | struct fb_info *info = vmw_priv->fb_info; |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 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; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 181 | |
Thomas Hellstrom | 09e2601 | 2010-10-05 12:43:05 +0200 | [diff] [blame] | 182 | if (vmw_priv->suspended) |
| 183 | return; |
| 184 | |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 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); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 191 | if (!par->dirty.active) { |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 192 | spin_unlock_irqrestore(&par->dirty.lock, irq_flags); |
| 193 | goto out_unlock; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 194 | } |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 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 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 218 | par->dirty.x1 = par->dirty.x2 = 0; |
| 219 | par->dirty.y1 = par->dirty.y2 = 0; |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 220 | spin_unlock_irqrestore(&par->dirty.lock, irq_flags); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 221 | |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 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); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 243 | } |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 244 | out_unlock: |
| 245 | mutex_unlock(&par->bo_mutex); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 246 | } |
| 247 | |
| 248 | static void vmw_fb_dirty_mark(struct vmw_fb_par *par, |
| 249 | unsigned x1, unsigned y1, |
| 250 | unsigned width, unsigned height) |
| 251 | { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 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) |
Thomas Hellstrom | 772269f | 2015-08-18 09:07:38 -0700 | [diff] [blame] | 265 | schedule_delayed_work(&par->local_work, |
| 266 | VMW_DIRTY_DELAY); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 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 | |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 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 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 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); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 330 | |
Thomas Hellstrom | 772269f | 2015-08-18 09:07:38 -0700 | [diff] [blame] | 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 | } |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 338 | }; |
| 339 | |
Thomas Hellstrom | b9eb1a6 | 2015-04-02 02:39:45 -0700 | [diff] [blame] | 340 | static struct fb_deferred_io vmw_defio = { |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 341 | .delay = VMW_DIRTY_DELAY, |
| 342 | .deferred_io = vmw_deferred_io, |
| 343 | }; |
| 344 | |
| 345 | /* |
| 346 | * Draw code |
| 347 | */ |
| 348 | |
| 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 | |
| 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 | |
| 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 | |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 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 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | (var->bits_per_pixel + 7) / 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 | |
Thomas Hellstrom | 772269f | 2015-08-18 09:07:38 -0700 | [diff] [blame] | 610 | schedule_delayed_work(&par->local_work, 0); |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 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 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 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 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 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; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 641 | unsigned fb_width, fb_height; |
Michel Dänzer | 6558429b | 2011-08-31 07:42:49 +0000 | [diff] [blame] | 642 | unsigned fb_bpp, fb_depth, fb_offset, fb_pitch, fb_size; |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 643 | struct drm_display_mode *init_mode; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 644 | int ret; |
| 645 | |
Michel Dänzer | 6558429b | 2011-08-31 07:42:49 +0000 | [diff] [blame] | 646 | fb_bpp = 32; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 647 | fb_depth = 24; |
| 648 | |
Jakob Bornecrantz | d7e1958 | 2010-05-28 11:21:59 +0200 | [diff] [blame] | 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); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 652 | |
Michel Dänzer | 6558429b | 2011-08-31 07:42:49 +0000 | [diff] [blame] | 653 | fb_pitch = fb_width * fb_bpp / 8; |
Jakob Bornecrantz | d7e1958 | 2010-05-28 11:21:59 +0200 | [diff] [blame] | 654 | fb_size = fb_pitch * fb_height; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 655 | fb_offset = vmw_read(vmw_priv, SVGA_REG_FB_OFFSET); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 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; |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 666 | memset(par, 0, sizeof(*par)); |
Thomas Hellstrom | 772269f | 2015-08-18 09:07:38 -0700 | [diff] [blame] | 667 | INIT_DELAYED_WORK(&par->local_work, &vmw_fb_dirty_flush); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 668 | par->vmw_priv = vmw_priv; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 669 | par->vmalloc = NULL; |
| 670 | par->max_width = fb_width; |
| 671 | par->max_height = fb_height; |
| 672 | |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 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 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 686 | /* |
| 687 | * Create buffers and alloc memory |
| 688 | */ |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 689 | par->vmalloc = vzalloc(fb_size); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 690 | if (unlikely(par->vmalloc == NULL)) { |
| 691 | ret = -ENOMEM; |
| 692 | goto err_free; |
| 693 | } |
| 694 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 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 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 711 | info->pseudo_palette = par->pseudo_palette; |
Thomas Hellstrom | b9eb1a6 | 2015-04-02 02:39:45 -0700 | [diff] [blame] | 712 | info->screen_base = (char __iomem *)par->vmalloc; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 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; |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 730 | info->var.bits_per_pixel = fb_bpp; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 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 | |
Sascha Hauer | fb2a99e | 2012-02-06 10:58:19 +0100 | [diff] [blame] | 737 | /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ |
Marcin Slusarz | 1471ca9 | 2010-05-16 17:27:03 +0200 | [diff] [blame] | 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; |
Thomas Hellstrom | f2d12b8 | 2010-02-15 14:45:22 +0000 | [diff] [blame] | 745 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 746 | /* |
| 747 | * Dirty & Deferred IO |
| 748 | */ |
| 749 | par->dirty.x1 = par->dirty.x2 = 0; |
Chris Wilson | c39721c | 2010-07-24 17:15:11 +0100 | [diff] [blame] | 750 | par->dirty.y1 = par->dirty.y2 = 0; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 751 | par->dirty.active = true; |
| 752 | spin_lock_init(&par->dirty.lock); |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 753 | mutex_init(&par->bo_mutex); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 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 | |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 761 | vmw_fb_set_par(info); |
| 762 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 763 | return 0; |
| 764 | |
| 765 | err_defio: |
| 766 | fb_deferred_io_cleanup(info); |
Marcin Slusarz | 1471ca9 | 2010-05-16 17:27:03 +0200 | [diff] [blame] | 767 | err_aper: |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 768 | err_free: |
| 769 | vfree(par->vmalloc); |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 770 | err_kms: |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 771 | framebuffer_release(info); |
| 772 | vmw_priv->fb_info = NULL; |
| 773 | |
| 774 | return ret; |
| 775 | } |
| 776 | |
| 777 | int vmw_fb_close(struct vmw_private *vmw_priv) |
| 778 | { |
| 779 | struct fb_info *info; |
| 780 | struct vmw_fb_par *par; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 781 | |
| 782 | if (!vmw_priv->fb_info) |
| 783 | return 0; |
| 784 | |
| 785 | info = vmw_priv->fb_info; |
| 786 | par = info->par; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 787 | |
| 788 | /* ??? order */ |
| 789 | fb_deferred_io_cleanup(info); |
Thomas Hellstrom | 772269f | 2015-08-18 09:07:38 -0700 | [diff] [blame] | 790 | cancel_delayed_work_sync(&par->local_work); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 791 | unregister_framebuffer(info); |
| 792 | |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 793 | (void) vmw_fb_kms_detach(par, true, true); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 794 | |
| 795 | vfree(par->vmalloc); |
| 796 | framebuffer_release(info); |
| 797 | |
| 798 | return 0; |
| 799 | } |
| 800 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 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 | |
Tejun Heo | 4382973 | 2012-08-20 14:51:24 -0700 | [diff] [blame] | 817 | flush_delayed_work(&info->deferred_work); |
Thomas Hellstrom | 772269f | 2015-08-18 09:07:38 -0700 | [diff] [blame] | 818 | flush_delayed_work(&par->local_work); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 819 | |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 820 | mutex_lock(&par->bo_mutex); |
| 821 | (void) vmw_fb_kms_detach(par, true, false); |
| 822 | mutex_unlock(&par->bo_mutex); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 823 | |
| 824 | return 0; |
| 825 | } |
| 826 | |
| 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; |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 832 | |
| 833 | if (!vmw_priv->fb_info) |
| 834 | return -EINVAL; |
| 835 | |
| 836 | info = vmw_priv->fb_info; |
| 837 | par = info->par; |
| 838 | |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 839 | vmw_fb_set_par(info); |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 840 | spin_lock_irqsave(&par->dirty.lock, flags); |
| 841 | par->dirty.active = true; |
| 842 | spin_unlock_irqrestore(&par->dirty.lock, flags); |
Thomas Hellstrom | a278724 | 2015-06-29 12:55:07 -0700 | [diff] [blame] | 843 | |
Jakob Bornecrantz | fb1d973 | 2009-12-10 00:19:58 +0000 | [diff] [blame] | 844 | return 0; |
| 845 | } |