drivers/gpu/drm/i915/intel_sprite.c

   1 /*
   2  * Copyright © 2011 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  * Authors:
  24  *   Jesse Barnes <jbarnes@virtuousgeek.org>
  25  *
  26  * New plane/sprite handling.
  27  *
  28  * The older chips had a separate interface for programming plane related
  29  * registers; newer ones are much simpler and we can use the new DRM plane
  30  * support.
  31  */
  32 #include "drmP.h"
  33 #include "drm_crtc.h"
  34 #include "drm_fourcc.h"
  35 #include "intel_drv.h"
  36 #include "i915_drm.h"
  37 #include "i915_drv.h"
  38
  39 static void
  40 ivb_update_plane(struct drm_plane *plane, struct drm_framebuffer *fb,
  41                  struct drm_i915_gem_object *obj, int crtc_x, int crtc_y,
  42                  unsigned int crtc_w, unsigned int crtc_h,
  43                  uint32_t x, uint32_t y,
  44                  uint32_t src_w, uint32_t src_h)
  45 {
  46         struct drm_device *dev = plane->dev;
  47         struct drm_i915_private *dev_priv = dev->dev_private;
  48         struct intel_plane *intel_plane = to_intel_plane(plane);
  49         int pipe = intel_plane->pipe;
  50         u32 sprctl, sprscale = 0;
  51         int pixel_size;
  52
  53         sprctl = I915_READ(SPRCTL(pipe));
  54
  55         /* Mask out pixel format bits in case we change it */
  56         sprctl &= ~SPRITE_PIXFORMAT_MASK;
  57         sprctl &= ~SPRITE_RGB_ORDER_RGBX;
  58         sprctl &= ~SPRITE_YUV_BYTE_ORDER_MASK;
  59
  60         switch (fb->pixel_format) {
  61         case DRM_FORMAT_XBGR8888:
  62                 sprctl |= SPRITE_FORMAT_RGBX888;
  63                 pixel_size = 4;
  64                 break;
  65         case DRM_FORMAT_XRGB8888:
  66                 sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX;
  67                 pixel_size = 4;
  68                 break;
  69         case DRM_FORMAT_YUYV:
  70                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YUYV;
  71                 pixel_size = 2;
  72                 break;
  73         case DRM_FORMAT_YVYU:
  74                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YVYU;
  75                 pixel_size = 2;
  76                 break;
  77         case DRM_FORMAT_UYVY:
  78                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_UYVY;
  79                 pixel_size = 2;
  80                 break;
  81         case DRM_FORMAT_VYUY:
  82                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_VYUY;
  83                 pixel_size = 2;
  84                 break;
  85         default:
  86                 DRM_DEBUG_DRIVER("bad pixel format, assuming RGBX888\n");
  87                 sprctl |= DVS_FORMAT_RGBX888;
  88                 pixel_size = 4;
  89                 break;
  90         }
  91
  92         if (obj->tiling_mode != I915_TILING_NONE)
  93                 sprctl |= SPRITE_TILED;
  94
  95         /* must disable */
  96         sprctl |= SPRITE_TRICKLE_FEED_DISABLE;
  97         sprctl |= SPRITE_ENABLE;
  98
  99         /* Sizes are 0 based */
 100         src_w--;
 101         src_h--;
 102         crtc_w--;
 103         crtc_h--;
 104
 105         intel_update_sprite_watermarks(dev, pipe, crtc_w, pixel_size);
 106
 107         /*
 108          * IVB workaround: must disable low power watermarks for at least
 109          * one frame before enabling scaling.  LP watermarks can be re-enabled
 110          * when scaling is disabled.
 111          */
 112         if (crtc_w != src_w || crtc_h != src_h) {
 113                 dev_priv->sprite_scaling_enabled = true;
 114                 sandybridge_update_wm(dev);
 115                 intel_wait_for_vblank(dev, pipe);
 116                 sprscale = SPRITE_SCALE_ENABLE | (src_w << 16) | src_h;
 117         } else {
 118                 dev_priv->sprite_scaling_enabled = false;
 119                 /* potentially re-enable LP watermarks */
 120                 sandybridge_update_wm(dev);
 121         }
 122
 123         I915_WRITE(SPRSTRIDE(pipe), fb->pitches[0]);
 124         I915_WRITE(SPRPOS(pipe), (crtc_y << 16) | crtc_x);
 125         if (obj->tiling_mode != I915_TILING_NONE) {
 126                 I915_WRITE(SPRTILEOFF(pipe), (y << 16) | x);
 127         } else {
 128                 unsigned long offset;
 129
 130                 offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
 131                 I915_WRITE(SPRLINOFF(pipe), offset);
 132         }
 133         I915_WRITE(SPRSIZE(pipe), (crtc_h << 16) | crtc_w);
 134         I915_WRITE(SPRSCALE(pipe), sprscale);
 135         I915_WRITE(SPRCTL(pipe), sprctl);
 136         I915_WRITE(SPRSURF(pipe), obj->gtt_offset);
 137         POSTING_READ(SPRSURF(pipe));
 138 }
 139
 140 static void
 141 ivb_disable_plane(struct drm_plane *plane)
 142 {
 143         struct drm_device *dev = plane->dev;
 144         struct drm_i915_private *dev_priv = dev->dev_private;
 145         struct intel_plane *intel_plane = to_intel_plane(plane);
 146         int pipe = intel_plane->pipe;
 147
 148         I915_WRITE(SPRCTL(pipe), I915_READ(SPRCTL(pipe)) & ~SPRITE_ENABLE);
 149         /* Can't leave the scaler enabled... */
 150         I915_WRITE(SPRSCALE(pipe), 0);
 151         /* Activate double buffered register update */
 152         I915_WRITE(SPRSURF(pipe), 0);
 153         POSTING_READ(SPRSURF(pipe));
 154 }
 155
 156 static int
 157 ivb_update_colorkey(struct drm_plane *plane,
 158                     struct drm_intel_sprite_colorkey *key)
 159 {
 160         struct drm_device *dev = plane->dev;
 161         struct drm_i915_private *dev_priv = dev->dev_private;
 162         struct intel_plane *intel_plane;
 163         u32 sprctl;
 164         int ret = 0;
 165
 166         intel_plane = to_intel_plane(plane);
 167
 168         I915_WRITE(SPRKEYVAL(intel_plane->pipe), key->min_value);
 169         I915_WRITE(SPRKEYMAX(intel_plane->pipe), key->max_value);
 170         I915_WRITE(SPRKEYMSK(intel_plane->pipe), key->channel_mask);
 171
 172         sprctl = I915_READ(SPRCTL(intel_plane->pipe));
 173         sprctl &= ~(SPRITE_SOURCE_KEY | SPRITE_DEST_KEY);
 174         if (key->flags & I915_SET_COLORKEY_DESTINATION)
 175                 sprctl |= SPRITE_DEST_KEY;
 176         else if (key->flags & I915_SET_COLORKEY_SOURCE)
 177                 sprctl |= SPRITE_SOURCE_KEY;
 178         I915_WRITE(SPRCTL(intel_plane->pipe), sprctl);
 179
 180         POSTING_READ(SPRKEYMSK(intel_plane->pipe));
 181
 182         return ret;
 183 }
 184
 185 static void
 186 ivb_get_colorkey(struct drm_plane *plane, struct drm_intel_sprite_colorkey *key)
 187 {
 188         struct drm_device *dev = plane->dev;
 189         struct drm_i915_private *dev_priv = dev->dev_private;
 190         struct intel_plane *intel_plane;
 191         u32 sprctl;
 192
 193         intel_plane = to_intel_plane(plane);
 194
 195         key->min_value = I915_READ(SPRKEYVAL(intel_plane->pipe));
 196         key->max_value = I915_READ(SPRKEYMAX(intel_plane->pipe));
 197         key->channel_mask = I915_READ(SPRKEYMSK(intel_plane->pipe));
 198         key->flags = 0;
 199
 200         sprctl = I915_READ(SPRCTL(intel_plane->pipe));
 201
 202         if (sprctl & SPRITE_DEST_KEY)
 203                 key->flags = I915_SET_COLORKEY_DESTINATION;
 204         else if (sprctl & SPRITE_SOURCE_KEY)
 205                 key->flags = I915_SET_COLORKEY_SOURCE;
 206         else
 207                 key->flags = I915_SET_COLORKEY_NONE;
 208 }
 209
 210 static void
 211 snb_update_plane(struct drm_plane *plane, struct drm_framebuffer *fb,
 212                  struct drm_i915_gem_object *obj, int crtc_x, int crtc_y,
 213                  unsigned int crtc_w, unsigned int crtc_h,
 214                  uint32_t x, uint32_t y,
 215                  uint32_t src_w, uint32_t src_h)
 216 {
 217         struct drm_device *dev = plane->dev;
 218         struct drm_i915_private *dev_priv = dev->dev_private;
 219         struct intel_plane *intel_plane = to_intel_plane(plane);
 220         int pipe = intel_plane->pipe, pixel_size;
 221         u32 dvscntr, dvsscale = 0;
 222
 223         dvscntr = I915_READ(DVSCNTR(pipe));
 224
 225         /* Mask out pixel format bits in case we change it */
 226         dvscntr &= ~DVS_PIXFORMAT_MASK;
 227         dvscntr &= ~DVS_RGB_ORDER_XBGR;
 228         dvscntr &= ~DVS_YUV_BYTE_ORDER_MASK;
 229
 230         switch (fb->pixel_format) {
 231         case DRM_FORMAT_XBGR8888:
 232                 dvscntr |= DVS_FORMAT_RGBX888 | DVS_RGB_ORDER_XBGR;
 233                 pixel_size = 4;
 234                 break;
 235         case DRM_FORMAT_XRGB8888:
 236                 dvscntr |= DVS_FORMAT_RGBX888;
 237                 pixel_size = 4;
 238                 break;
 239         case DRM_FORMAT_YUYV:
 240                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YUYV;
 241                 pixel_size = 2;
 242                 break;
 243         case DRM_FORMAT_YVYU:
 244                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YVYU;
 245                 pixel_size = 2;
 246                 break;
 247         case DRM_FORMAT_UYVY:
 248                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_UYVY;
 249                 pixel_size = 2;
 250                 break;
 251         case DRM_FORMAT_VYUY:
 252                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_VYUY;
 253                 pixel_size = 2;
 254                 break;
 255         default:
 256                 DRM_DEBUG_DRIVER("bad pixel format, assuming RGBX888\n");
 257                 dvscntr |= DVS_FORMAT_RGBX888;
 258                 pixel_size = 4;
 259                 break;
 260         }
 261
 262         if (obj->tiling_mode != I915_TILING_NONE)
 263                 dvscntr |= DVS_TILED;
 264
 265         /* must disable */
 266         dvscntr |= DVS_TRICKLE_FEED_DISABLE;
 267         dvscntr |= DVS_ENABLE;
 268
 269         /* Sizes are 0 based */
 270         src_w--;
 271         src_h--;
 272         crtc_w--;
 273         crtc_h--;
 274
 275         intel_update_sprite_watermarks(dev, pipe, crtc_w, pixel_size);
 276
 277         if (crtc_w != src_w || crtc_h != src_h)
 278                 dvsscale = DVS_SCALE_ENABLE | (src_w << 16) | src_h;
 279
 280         I915_WRITE(DVSSTRIDE(pipe), fb->pitches[0]);
 281         I915_WRITE(DVSPOS(pipe), (crtc_y << 16) | crtc_x);
 282         if (obj->tiling_mode != I915_TILING_NONE) {
 283                 I915_WRITE(DVSTILEOFF(pipe), (y << 16) | x);
 284         } else {
 285                 unsigned long offset;
 286
 287                 offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
 288                 I915_WRITE(DVSLINOFF(pipe), offset);
 289         }
 290         I915_WRITE(DVSSIZE(pipe), (crtc_h << 16) | crtc_w);
 291         I915_WRITE(DVSSCALE(pipe), dvsscale);
 292         I915_WRITE(DVSCNTR(pipe), dvscntr);
 293         I915_WRITE(DVSSURF(pipe), obj->gtt_offset);
 294         POSTING_READ(DVSSURF(pipe));
 295 }
 296
 297 static void
 298 snb_disable_plane(struct drm_plane *plane)
 299 {
 300         struct drm_device *dev = plane->dev;
 301         struct drm_i915_private *dev_priv = dev->dev_private;
 302         struct intel_plane *intel_plane = to_intel_plane(plane);
 303         int pipe = intel_plane->pipe;
 304
 305         I915_WRITE(DVSCNTR(pipe), I915_READ(DVSCNTR(pipe)) & ~DVS_ENABLE);
 306         /* Disable the scaler */
 307         I915_WRITE(DVSSCALE(pipe), 0);
 308         /* Flush double buffered register updates */
 309         I915_WRITE(DVSSURF(pipe), 0);
 310         POSTING_READ(DVSSURF(pipe));
 311 }
 312
 313 static void
 314 intel_enable_primary(struct drm_crtc *crtc)
 315 {
 316         struct drm_device *dev = crtc->dev;
 317         struct drm_i915_private *dev_priv = dev->dev_private;
 318         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 319         int reg = DSPCNTR(intel_crtc->plane);
 320
 321         I915_WRITE(reg, I915_READ(reg) | DISPLAY_PLANE_ENABLE);
 322 }
 323
 324 static void
 325 intel_disable_primary(struct drm_crtc *crtc)
 326 {
 327         struct drm_device *dev = crtc->dev;
 328         struct drm_i915_private *dev_priv = dev->dev_private;
 329         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 330         int reg = DSPCNTR(intel_crtc->plane);
 331
 332         I915_WRITE(reg, I915_READ(reg) & ~DISPLAY_PLANE_ENABLE);
 333 }
 334
 335 static int
 336 snb_update_colorkey(struct drm_plane *plane,
 337                     struct drm_intel_sprite_colorkey *key)
 338 {
 339         struct drm_device *dev = plane->dev;
 340         struct drm_i915_private *dev_priv = dev->dev_private;
 341         struct intel_plane *intel_plane;
 342         u32 dvscntr;
 343         int ret = 0;
 344
 345         intel_plane = to_intel_plane(plane);
 346
 347         I915_WRITE(DVSKEYVAL(intel_plane->pipe), key->min_value);
 348         I915_WRITE(DVSKEYMAX(intel_plane->pipe), key->max_value);
 349         I915_WRITE(DVSKEYMSK(intel_plane->pipe), key->channel_mask);
 350
 351         dvscntr = I915_READ(DVSCNTR(intel_plane->pipe));
 352         dvscntr &= ~(DVS_SOURCE_KEY | DVS_DEST_KEY);
 353         if (key->flags & I915_SET_COLORKEY_DESTINATION)
 354                 dvscntr |= DVS_DEST_KEY;
 355         else if (key->flags & I915_SET_COLORKEY_SOURCE)
 356                 dvscntr |= DVS_SOURCE_KEY;
 357         I915_WRITE(DVSCNTR(intel_plane->pipe), dvscntr);
 358
 359         POSTING_READ(DVSKEYMSK(intel_plane->pipe));
 360
 361         return ret;
 362 }
 363
 364 static void
 365 snb_get_colorkey(struct drm_plane *plane, struct drm_intel_sprite_colorkey *key)
 366 {
 367         struct drm_device *dev = plane->dev;
 368         struct drm_i915_private *dev_priv = dev->dev_private;
 369         struct intel_plane *intel_plane;
 370         u32 dvscntr;
 371
 372         intel_plane = to_intel_plane(plane);
 373
 374         key->min_value = I915_READ(DVSKEYVAL(intel_plane->pipe));
 375         key->max_value = I915_READ(DVSKEYMAX(intel_plane->pipe));
 376         key->channel_mask = I915_READ(DVSKEYMSK(intel_plane->pipe));
 377         key->flags = 0;
 378
 379         dvscntr = I915_READ(DVSCNTR(intel_plane->pipe));
 380
 381         if (dvscntr & DVS_DEST_KEY)
 382                 key->flags = I915_SET_COLORKEY_DESTINATION;
 383         else if (dvscntr & DVS_SOURCE_KEY)
 384                 key->flags = I915_SET_COLORKEY_SOURCE;
 385         else
 386                 key->flags = I915_SET_COLORKEY_NONE;
 387 }
 388
 389 static int
 390 intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 391                    struct drm_framebuffer *fb, int crtc_x, int crtc_y,
 392                    unsigned int crtc_w, unsigned int crtc_h,
 393                    uint32_t src_x, uint32_t src_y,
 394                    uint32_t src_w, uint32_t src_h)
 395 {
 396         struct drm_device *dev = plane->dev;
 397         struct drm_i915_private *dev_priv = dev->dev_private;
 398         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 399         struct intel_plane *intel_plane = to_intel_plane(plane);
 400         struct intel_framebuffer *intel_fb;
 401         struct drm_i915_gem_object *obj, *old_obj;
 402         int pipe = intel_plane->pipe;
 403         int ret = 0;
 404         int x = src_x >> 16, y = src_y >> 16;
 405         int primary_w = crtc->mode.hdisplay, primary_h = crtc->mode.vdisplay;
 406         bool disable_primary = false;
 407
 408         intel_fb = to_intel_framebuffer(fb);
 409         obj = intel_fb->obj;
 410
 411         old_obj = intel_plane->obj;
 412
 413         src_w = src_w >> 16;
 414         src_h = src_h >> 16;
 415
 416         /* Pipe must be running... */
 417         if (!(I915_READ(PIPECONF(pipe)) & PIPECONF_ENABLE))
 418                 return -EINVAL;
 419
 420         if (crtc_x >= primary_w || crtc_y >= primary_h)
 421                 return -EINVAL;
 422
 423         /* Don't modify another pipe's plane */
 424         if (intel_plane->pipe != intel_crtc->pipe)
 425                 return -EINVAL;
 426
 427         /*
 428          * Clamp the width & height into the visible area.  Note we don't
 429          * try to scale the source if part of the visible region is offscreen.
 430          * The caller must handle that by adjusting source offset and size.
 431          */
 432         if ((crtc_x < 0) && ((crtc_x + crtc_w) > 0)) {
 433                 crtc_w += crtc_x;
 434                 crtc_x = 0;
 435         }
 436         if ((crtc_x + crtc_w) <= 0) /* Nothing to display */
 437                 goto out;
 438         if ((crtc_x + crtc_w) > primary_w)
 439                 crtc_w = primary_w - crtc_x;
 440
 441         if ((crtc_y < 0) && ((crtc_y + crtc_h) > 0)) {
 442                 crtc_h += crtc_y;
 443                 crtc_y = 0;
 444         }
 445         if ((crtc_y + crtc_h) <= 0) /* Nothing to display */
 446                 goto out;
 447         if (crtc_y + crtc_h > primary_h)
 448                 crtc_h = primary_h - crtc_y;
 449
 450         if (!crtc_w || !crtc_h) /* Again, nothing to display */
 451                 goto out;
 452
 453         /*
 454          * We can take a larger source and scale it down, but
 455          * only so much...  16x is the max on SNB.
 456          */
 457         if (((src_w * src_h) / (crtc_w * crtc_h)) > intel_plane->max_downscale)
 458                 return -EINVAL;
 459
 460         /*
 461          * If the sprite is completely covering the primary plane,
 462          * we can disable the primary and save power.
 463          */
 464         if ((crtc_x == 0) && (crtc_y == 0) &&
 465             (crtc_w == primary_w) && (crtc_h == primary_h))
 466                 disable_primary = true;
 467
 468         mutex_lock(&dev->struct_mutex);
 469
 470         ret = intel_pin_and_fence_fb_obj(dev, obj, NULL);
 471         if (ret)
 472                 goto out_unlock;
 473
 474         intel_plane->obj = obj;
 475
 476         /*
 477          * Be sure to re-enable the primary before the sprite is no longer
 478          * covering it fully.
 479          */
 480         if (!disable_primary && intel_plane->primary_disabled) {
 481                 intel_enable_primary(crtc);
 482                 intel_plane->primary_disabled = false;
 483         }
 484
 485         intel_plane->update_plane(plane, fb, obj, crtc_x, crtc_y,
 486                                   crtc_w, crtc_h, x, y, src_w, src_h);
 487
 488         if (disable_primary) {
 489                 intel_disable_primary(crtc);
 490                 intel_plane->primary_disabled = true;
 491         }
 492
 493         /* Unpin old obj after new one is active to avoid ugliness */
 494         if (old_obj) {
 495                 /*
 496                  * It's fairly common to simply update the position of
 497                  * an existing object.  In that case, we don't need to
 498                  * wait for vblank to avoid ugliness, we only need to
 499                  * do the pin & ref bookkeeping.
 500                  */
 501                 if (old_obj != obj) {
 502                         mutex_unlock(&dev->struct_mutex);
 503                         intel_wait_for_vblank(dev, to_intel_crtc(crtc)->pipe);
 504                         mutex_lock(&dev->struct_mutex);
 505                 }
 506                 intel_unpin_fb_obj(old_obj);
 507         }
 508
 509 out_unlock:
 510         mutex_unlock(&dev->struct_mutex);
 511 out:
 512         return ret;
 513 }
 514
 515 static int
 516 intel_disable_plane(struct drm_plane *plane)
 517 {
 518         struct drm_device *dev = plane->dev;
 519         struct intel_plane *intel_plane = to_intel_plane(plane);
 520         int ret = 0;
 521
 522         if (intel_plane->primary_disabled) {
 523                 intel_enable_primary(plane->crtc);
 524                 intel_plane->primary_disabled = false;
 525         }
 526
 527         intel_plane->disable_plane(plane);
 528
 529         if (!intel_plane->obj)
 530                 goto out;
 531
 532         mutex_lock(&dev->struct_mutex);
 533         intel_unpin_fb_obj(intel_plane->obj);
 534         intel_plane->obj = NULL;
 535         mutex_unlock(&dev->struct_mutex);
 536 out:
 537
 538         return ret;
 539 }
 540
 541 static void intel_destroy_plane(struct drm_plane *plane)
 542 {
 543         struct intel_plane *intel_plane = to_intel_plane(plane);
 544         intel_disable_plane(plane);
 545         drm_plane_cleanup(plane);
 546         kfree(intel_plane);
 547 }
 548
 549 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
 550                               struct drm_file *file_priv)
 551 {
 552         struct drm_intel_sprite_colorkey *set = data;
 553         struct drm_i915_private *dev_priv = dev->dev_private;
 554         struct drm_mode_object *obj;
 555         struct drm_plane *plane;
 556         struct intel_plane *intel_plane;
 557         int ret = 0;
 558
 559         if (!dev_priv)
 560                 return -EINVAL;
 561
 562         /* Make sure we don't try to enable both src & dest simultaneously */
 563         if ((set->flags & (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE)) == (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE))
 564                 return -EINVAL;
 565
 566         mutex_lock(&dev->mode_config.mutex);
 567
 568         obj = drm_mode_object_find(dev, set->plane_id, DRM_MODE_OBJECT_PLANE);
 569         if (!obj) {
 570                 ret = -EINVAL;
 571                 goto out_unlock;
 572         }
 573
 574         plane = obj_to_plane(obj);
 575         intel_plane = to_intel_plane(plane);
 576         ret = intel_plane->update_colorkey(plane, set);
 577
 578 out_unlock:
 579         mutex_unlock(&dev->mode_config.mutex);
 580         return ret;
 581 }
 582
 583 int intel_sprite_get_colorkey(struct drm_device *dev, void *data,
 584                               struct drm_file *file_priv)
 585 {
 586         struct drm_intel_sprite_colorkey *get = data;
 587         struct drm_i915_private *dev_priv = dev->dev_private;
 588         struct drm_mode_object *obj;
 589         struct drm_plane *plane;
 590         struct intel_plane *intel_plane;
 591         int ret = 0;
 592
 593         if (!dev_priv)
 594                 return -EINVAL;
 595
 596         mutex_lock(&dev->mode_config.mutex);
 597
 598         obj = drm_mode_object_find(dev, get->plane_id, DRM_MODE_OBJECT_PLANE);
 599         if (!obj) {
 600                 ret = -EINVAL;
 601                 goto out_unlock;
 602         }
 603
 604         plane = obj_to_plane(obj);
 605         intel_plane = to_intel_plane(plane);
 606         intel_plane->get_colorkey(plane, get);
 607
 608 out_unlock:
 609         mutex_unlock(&dev->mode_config.mutex);
 610         return ret;
 611 }
 612
 613 static const struct drm_plane_funcs intel_plane_funcs = {
 614         .update_plane = intel_update_plane,
 615         .disable_plane = intel_disable_plane,
 616         .destroy = intel_destroy_plane,
 617 };
 618
 619 static uint32_t snb_plane_formats[] = {
 620         DRM_FORMAT_XBGR8888,
 621         DRM_FORMAT_XRGB8888,
 622         DRM_FORMAT_YUYV,
 623         DRM_FORMAT_YVYU,
 624         DRM_FORMAT_UYVY,
 625         DRM_FORMAT_VYUY,
 626 };
 627
 628 int
 629 intel_plane_init(struct drm_device *dev, enum pipe pipe)
 630 {
 631         struct intel_plane *intel_plane;
 632         unsigned long possible_crtcs;
 633         int ret;
 634
 635         if (!(IS_GEN6(dev) || IS_GEN7(dev)))
 636                 return -ENODEV;
 637
 638         intel_plane = kzalloc(sizeof(struct intel_plane), GFP_KERNEL);
 639         if (!intel_plane)
 640                 return -ENOMEM;
 641
 642         if (IS_GEN6(dev)) {
 643                 intel_plane->max_downscale = 16;
 644                 intel_plane->update_plane = snb_update_plane;
 645                 intel_plane->disable_plane = snb_disable_plane;
 646                 intel_plane->update_colorkey = snb_update_colorkey;
 647                 intel_plane->get_colorkey = snb_get_colorkey;
 648         } else if (IS_GEN7(dev)) {
 649                 intel_plane->max_downscale = 2;
 650                 intel_plane->update_plane = ivb_update_plane;
 651                 intel_plane->disable_plane = ivb_disable_plane;
 652                 intel_plane->update_colorkey = ivb_update_colorkey;
 653                 intel_plane->get_colorkey = ivb_get_colorkey;
 654         }
 655
 656         intel_plane->pipe = pipe;
 657         possible_crtcs = (1 << pipe);
 658         ret = drm_plane_init(dev, &intel_plane->base, possible_crtcs,
 659                              &intel_plane_funcs, snb_plane_formats,
 660                              ARRAY_SIZE(snb_plane_formats), false);
 661         if (ret)
 662                 kfree(intel_plane);
 663
 664         return ret;
 665 }
 666