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 <[email protected]>
  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 <drm/drmP.h>
  33 #include <drm/drm_crtc.h>
  34 #include <drm/drm_fourcc.h>
  35 #include "intel_drv.h"
  36 #include <drm/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         unsigned long sprsurf_offset, linear_offset;
  52         int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
  53         bool scaling_was_enabled = dev_priv->sprite_scaling_enabled;
  54
  55         sprctl = I915_READ(SPRCTL(pipe));
  56
  57         /* Mask out pixel format bits in case we change it */
  58         sprctl &= ~SPRITE_PIXFORMAT_MASK;
  59         sprctl &= ~SPRITE_RGB_ORDER_RGBX;
  60         sprctl &= ~SPRITE_YUV_BYTE_ORDER_MASK;
  61         sprctl &= ~SPRITE_TILED;
  62
  63         switch (fb->pixel_format) {
  64         case DRM_FORMAT_XBGR8888:
  65                 sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX;
  66                 break;
  67         case DRM_FORMAT_XRGB8888:
  68                 sprctl |= SPRITE_FORMAT_RGBX888;
  69                 break;
  70         case DRM_FORMAT_YUYV:
  71                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YUYV;
  72                 break;
  73         case DRM_FORMAT_YVYU:
  74                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YVYU;
  75                 break;
  76         case DRM_FORMAT_UYVY:
  77                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_UYVY;
  78                 break;
  79         case DRM_FORMAT_VYUY:
  80                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_VYUY;
  81                 break;
  82         default:
  83                 BUG();
  84         }
  85
  86         if (obj->tiling_mode != I915_TILING_NONE)
  87                 sprctl |= SPRITE_TILED;
  88
  89         /* must disable */
  90         sprctl |= SPRITE_TRICKLE_FEED_DISABLE;
  91         sprctl |= SPRITE_ENABLE;
  92
  93         if (IS_HASWELL(dev))
  94                 sprctl |= SPRITE_PIPE_CSC_ENABLE;
  95
  96         /* Sizes are 0 based */
  97         src_w--;
  98         src_h--;
  99         crtc_w--;
 100         crtc_h--;
 101
 102         intel_update_sprite_watermarks(dev, pipe, crtc_w, pixel_size);
 103
 104         /*
 105          * IVB workaround: must disable low power watermarks for at least
 106          * one frame before enabling scaling.  LP watermarks can be re-enabled
 107          * when scaling is disabled.
 108          */
 109         if (crtc_w != src_w || crtc_h != src_h) {
 110                 dev_priv->sprite_scaling_enabled |= 1 << pipe;
 111
 112                 if (!scaling_was_enabled) {
 113                         intel_update_watermarks(dev);
 114                         intel_wait_for_vblank(dev, pipe);
 115                 }
 116                 sprscale = SPRITE_SCALE_ENABLE | (src_w << 16) | src_h;
 117         } else
 118                 dev_priv->sprite_scaling_enabled &= ~(1 << pipe);
 119
 120         I915_WRITE(SPRSTRIDE(pipe), fb->pitches[0]);
 121         I915_WRITE(SPRPOS(pipe), (crtc_y << 16) | crtc_x);
 122
 123         linear_offset = y * fb->pitches[0] + x * pixel_size;
 124         sprsurf_offset =
 125                 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
 126                                                pixel_size, fb->pitches[0]);
 127         linear_offset -= sprsurf_offset;
 128
 129         /* HSW consolidates SPRTILEOFF and SPRLINOFF into a single SPROFFSET
 130          * register */
 131         if (IS_HASWELL(dev))
 132                 I915_WRITE(SPROFFSET(pipe), (y << 16) | x);
 133         else if (obj->tiling_mode != I915_TILING_NONE)
 134                 I915_WRITE(SPRTILEOFF(pipe), (y << 16) | x);
 135         else
 136                 I915_WRITE(SPRLINOFF(pipe), linear_offset);
 137
 138         I915_WRITE(SPRSIZE(pipe), (crtc_h << 16) | crtc_w);
 139         if (intel_plane->can_scale)
 140                 I915_WRITE(SPRSCALE(pipe), sprscale);
 141         I915_WRITE(SPRCTL(pipe), sprctl);
 142         I915_MODIFY_DISPBASE(SPRSURF(pipe), obj->gtt_offset + sprsurf_offset);
 143         POSTING_READ(SPRSURF(pipe));
 144
 145         /* potentially re-enable LP watermarks */
 146         if (scaling_was_enabled && !dev_priv->sprite_scaling_enabled)
 147                 intel_update_watermarks(dev);
 148 }
 149
 150 static void
 151 ivb_disable_plane(struct drm_plane *plane)
 152 {
 153         struct drm_device *dev = plane->dev;
 154         struct drm_i915_private *dev_priv = dev->dev_private;
 155         struct intel_plane *intel_plane = to_intel_plane(plane);
 156         int pipe = intel_plane->pipe;
 157         bool scaling_was_enabled = dev_priv->sprite_scaling_enabled;
 158
 159         I915_WRITE(SPRCTL(pipe), I915_READ(SPRCTL(pipe)) & ~SPRITE_ENABLE);
 160         /* Can't leave the scaler enabled... */
 161         if (intel_plane->can_scale)
 162                 I915_WRITE(SPRSCALE(pipe), 0);
 163         /* Activate double buffered register update */
 164         I915_MODIFY_DISPBASE(SPRSURF(pipe), 0);
 165         POSTING_READ(SPRSURF(pipe));
 166
 167         dev_priv->sprite_scaling_enabled &= ~(1 << pipe);
 168
 169         /* potentially re-enable LP watermarks */
 170         if (scaling_was_enabled && !dev_priv->sprite_scaling_enabled)
 171                 intel_update_watermarks(dev);
 172 }
 173
 174 static int
 175 ivb_update_colorkey(struct drm_plane *plane,
 176                     struct drm_intel_sprite_colorkey *key)
 177 {
 178         struct drm_device *dev = plane->dev;
 179         struct drm_i915_private *dev_priv = dev->dev_private;
 180         struct intel_plane *intel_plane;
 181         u32 sprctl;
 182         int ret = 0;
 183
 184         intel_plane = to_intel_plane(plane);
 185
 186         I915_WRITE(SPRKEYVAL(intel_plane->pipe), key->min_value);
 187         I915_WRITE(SPRKEYMAX(intel_plane->pipe), key->max_value);
 188         I915_WRITE(SPRKEYMSK(intel_plane->pipe), key->channel_mask);
 189
 190         sprctl = I915_READ(SPRCTL(intel_plane->pipe));
 191         sprctl &= ~(SPRITE_SOURCE_KEY | SPRITE_DEST_KEY);
 192         if (key->flags & I915_SET_COLORKEY_DESTINATION)
 193                 sprctl |= SPRITE_DEST_KEY;
 194         else if (key->flags & I915_SET_COLORKEY_SOURCE)
 195                 sprctl |= SPRITE_SOURCE_KEY;
 196         I915_WRITE(SPRCTL(intel_plane->pipe), sprctl);
 197
 198         POSTING_READ(SPRKEYMSK(intel_plane->pipe));
 199
 200         return ret;
 201 }
 202
 203 static void
 204 ivb_get_colorkey(struct drm_plane *plane, struct drm_intel_sprite_colorkey *key)
 205 {
 206         struct drm_device *dev = plane->dev;
 207         struct drm_i915_private *dev_priv = dev->dev_private;
 208         struct intel_plane *intel_plane;
 209         u32 sprctl;
 210
 211         intel_plane = to_intel_plane(plane);
 212
 213         key->min_value = I915_READ(SPRKEYVAL(intel_plane->pipe));
 214         key->max_value = I915_READ(SPRKEYMAX(intel_plane->pipe));
 215         key->channel_mask = I915_READ(SPRKEYMSK(intel_plane->pipe));
 216         key->flags = 0;
 217
 218         sprctl = I915_READ(SPRCTL(intel_plane->pipe));
 219
 220         if (sprctl & SPRITE_DEST_KEY)
 221                 key->flags = I915_SET_COLORKEY_DESTINATION;
 222         else if (sprctl & SPRITE_SOURCE_KEY)
 223                 key->flags = I915_SET_COLORKEY_SOURCE;
 224         else
 225                 key->flags = I915_SET_COLORKEY_NONE;
 226 }
 227
 228 static void
 229 ilk_update_plane(struct drm_plane *plane, struct drm_framebuffer *fb,
 230                  struct drm_i915_gem_object *obj, int crtc_x, int crtc_y,
 231                  unsigned int crtc_w, unsigned int crtc_h,
 232                  uint32_t x, uint32_t y,
 233                  uint32_t src_w, uint32_t src_h)
 234 {
 235         struct drm_device *dev = plane->dev;
 236         struct drm_i915_private *dev_priv = dev->dev_private;
 237         struct intel_plane *intel_plane = to_intel_plane(plane);
 238         int pipe = intel_plane->pipe;
 239         unsigned long dvssurf_offset, linear_offset;
 240         u32 dvscntr, dvsscale;
 241         int pixel_size = drm_format_plane_cpp(fb->pixel_format, 0);
 242
 243         dvscntr = I915_READ(DVSCNTR(pipe));
 244
 245         /* Mask out pixel format bits in case we change it */
 246         dvscntr &= ~DVS_PIXFORMAT_MASK;
 247         dvscntr &= ~DVS_RGB_ORDER_XBGR;
 248         dvscntr &= ~DVS_YUV_BYTE_ORDER_MASK;
 249         dvscntr &= ~DVS_TILED;
 250
 251         switch (fb->pixel_format) {
 252         case DRM_FORMAT_XBGR8888:
 253                 dvscntr |= DVS_FORMAT_RGBX888 | DVS_RGB_ORDER_XBGR;
 254                 break;
 255         case DRM_FORMAT_XRGB8888:
 256                 dvscntr |= DVS_FORMAT_RGBX888;
 257                 break;
 258         case DRM_FORMAT_YUYV:
 259                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YUYV;
 260                 break;
 261         case DRM_FORMAT_YVYU:
 262                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YVYU;
 263                 break;
 264         case DRM_FORMAT_UYVY:
 265                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_UYVY;
 266                 break;
 267         case DRM_FORMAT_VYUY:
 268                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_VYUY;
 269                 break;
 270         default:
 271                 BUG();
 272         }
 273
 274         if (obj->tiling_mode != I915_TILING_NONE)
 275                 dvscntr |= DVS_TILED;
 276
 277         if (IS_GEN6(dev))
 278                 dvscntr |= DVS_TRICKLE_FEED_DISABLE; /* must disable */
 279         dvscntr |= DVS_ENABLE;
 280
 281         /* Sizes are 0 based */
 282         src_w--;
 283         src_h--;
 284         crtc_w--;
 285         crtc_h--;
 286
 287         intel_update_sprite_watermarks(dev, pipe, crtc_w, pixel_size);
 288
 289         dvsscale = 0;
 290         if (IS_GEN5(dev) || crtc_w != src_w || crtc_h != src_h)
 291                 dvsscale = DVS_SCALE_ENABLE | (src_w << 16) | src_h;
 292
 293         I915_WRITE(DVSSTRIDE(pipe), fb->pitches[0]);
 294         I915_WRITE(DVSPOS(pipe), (crtc_y << 16) | crtc_x);
 295
 296         linear_offset = y * fb->pitches[0] + x * pixel_size;
 297         dvssurf_offset =
 298                 intel_gen4_compute_page_offset(&x, &y, obj->tiling_mode,
 299                                                pixel_size, fb->pitches[0]);
 300         linear_offset -= dvssurf_offset;
 301
 302         if (obj->tiling_mode != I915_TILING_NONE)
 303                 I915_WRITE(DVSTILEOFF(pipe), (y << 16) | x);
 304         else
 305                 I915_WRITE(DVSLINOFF(pipe), linear_offset);
 306
 307         I915_WRITE(DVSSIZE(pipe), (crtc_h << 16) | crtc_w);
 308         I915_WRITE(DVSSCALE(pipe), dvsscale);
 309         I915_WRITE(DVSCNTR(pipe), dvscntr);
 310         I915_MODIFY_DISPBASE(DVSSURF(pipe), obj->gtt_offset + dvssurf_offset);
 311         POSTING_READ(DVSSURF(pipe));
 312 }
 313
 314 static void
 315 ilk_disable_plane(struct drm_plane *plane)
 316 {
 317         struct drm_device *dev = plane->dev;
 318         struct drm_i915_private *dev_priv = dev->dev_private;
 319         struct intel_plane *intel_plane = to_intel_plane(plane);
 320         int pipe = intel_plane->pipe;
 321
 322         I915_WRITE(DVSCNTR(pipe), I915_READ(DVSCNTR(pipe)) & ~DVS_ENABLE);
 323         /* Disable the scaler */
 324         I915_WRITE(DVSSCALE(pipe), 0);
 325         /* Flush double buffered register updates */
 326         I915_MODIFY_DISPBASE(DVSSURF(pipe), 0);
 327         POSTING_READ(DVSSURF(pipe));
 328 }
 329
 330 static void
 331 intel_enable_primary(struct drm_crtc *crtc)
 332 {
 333         struct drm_device *dev = crtc->dev;
 334         struct drm_i915_private *dev_priv = dev->dev_private;
 335         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 336         int reg = DSPCNTR(intel_crtc->plane);
 337
 338         if (!intel_crtc->primary_disabled)
 339                 return;
 340
 341         intel_crtc->primary_disabled = false;
 342         intel_update_fbc(dev);
 343
 344         I915_WRITE(reg, I915_READ(reg) | DISPLAY_PLANE_ENABLE);
 345 }
 346
 347 static void
 348 intel_disable_primary(struct drm_crtc *crtc)
 349 {
 350         struct drm_device *dev = crtc->dev;
 351         struct drm_i915_private *dev_priv = dev->dev_private;
 352         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 353         int reg = DSPCNTR(intel_crtc->plane);
 354
 355         if (intel_crtc->primary_disabled)
 356                 return;
 357
 358         I915_WRITE(reg, I915_READ(reg) & ~DISPLAY_PLANE_ENABLE);
 359
 360         intel_crtc->primary_disabled = true;
 361         intel_update_fbc(dev);
 362 }
 363
 364 static int
 365 ilk_update_colorkey(struct drm_plane *plane,
 366                     struct drm_intel_sprite_colorkey *key)
 367 {
 368         struct drm_device *dev = plane->dev;
 369         struct drm_i915_private *dev_priv = dev->dev_private;
 370         struct intel_plane *intel_plane;
 371         u32 dvscntr;
 372         int ret = 0;
 373
 374         intel_plane = to_intel_plane(plane);
 375
 376         I915_WRITE(DVSKEYVAL(intel_plane->pipe), key->min_value);
 377         I915_WRITE(DVSKEYMAX(intel_plane->pipe), key->max_value);
 378         I915_WRITE(DVSKEYMSK(intel_plane->pipe), key->channel_mask);
 379
 380         dvscntr = I915_READ(DVSCNTR(intel_plane->pipe));
 381         dvscntr &= ~(DVS_SOURCE_KEY | DVS_DEST_KEY);
 382         if (key->flags & I915_SET_COLORKEY_DESTINATION)
 383                 dvscntr |= DVS_DEST_KEY;
 384         else if (key->flags & I915_SET_COLORKEY_SOURCE)
 385                 dvscntr |= DVS_SOURCE_KEY;
 386         I915_WRITE(DVSCNTR(intel_plane->pipe), dvscntr);
 387
 388         POSTING_READ(DVSKEYMSK(intel_plane->pipe));
 389
 390         return ret;
 391 }
 392
 393 static void
 394 ilk_get_colorkey(struct drm_plane *plane, struct drm_intel_sprite_colorkey *key)
 395 {
 396         struct drm_device *dev = plane->dev;
 397         struct drm_i915_private *dev_priv = dev->dev_private;
 398         struct intel_plane *intel_plane;
 399         u32 dvscntr;
 400
 401         intel_plane = to_intel_plane(plane);
 402
 403         key->min_value = I915_READ(DVSKEYVAL(intel_plane->pipe));
 404         key->max_value = I915_READ(DVSKEYMAX(intel_plane->pipe));
 405         key->channel_mask = I915_READ(DVSKEYMSK(intel_plane->pipe));
 406         key->flags = 0;
 407
 408         dvscntr = I915_READ(DVSCNTR(intel_plane->pipe));
 409
 410         if (dvscntr & DVS_DEST_KEY)
 411                 key->flags = I915_SET_COLORKEY_DESTINATION;
 412         else if (dvscntr & DVS_SOURCE_KEY)
 413                 key->flags = I915_SET_COLORKEY_SOURCE;
 414         else
 415                 key->flags = I915_SET_COLORKEY_NONE;
 416 }
 417
 418 static int
 419 intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 420                    struct drm_framebuffer *fb, int crtc_x, int crtc_y,
 421                    unsigned int crtc_w, unsigned int crtc_h,
 422                    uint32_t src_x, uint32_t src_y,
 423                    uint32_t src_w, uint32_t src_h)
 424 {
 425         struct drm_device *dev = plane->dev;
 426         struct drm_i915_private *dev_priv = dev->dev_private;
 427         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 428         struct intel_plane *intel_plane = to_intel_plane(plane);
 429         struct intel_framebuffer *intel_fb;
 430         struct drm_i915_gem_object *obj, *old_obj;
 431         int pipe = intel_plane->pipe;
 432         enum transcoder cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv,
 433                                                                       pipe);
 434         int ret = 0;
 435         int x = src_x >> 16, y = src_y >> 16;
 436         int primary_w = crtc->mode.hdisplay, primary_h = crtc->mode.vdisplay;
 437         bool disable_primary = false;
 438
 439         intel_fb = to_intel_framebuffer(fb);
 440         obj = intel_fb->obj;
 441
 442         old_obj = intel_plane->obj;
 443
 444         src_w = src_w >> 16;
 445         src_h = src_h >> 16;
 446
 447         /* Pipe must be running... */
 448         if (!(I915_READ(PIPECONF(cpu_transcoder)) & PIPECONF_ENABLE))
 449                 return -EINVAL;
 450
 451         if (crtc_x >= primary_w || crtc_y >= primary_h)
 452                 return -EINVAL;
 453
 454         /* Don't modify another pipe's plane */
 455         if (intel_plane->pipe != intel_crtc->pipe)
 456                 return -EINVAL;
 457
 458         /* Sprite planes can be linear or x-tiled surfaces */
 459         switch (obj->tiling_mode) {
 460                 case I915_TILING_NONE:
 461                 case I915_TILING_X:
 462                         break;
 463                 default:
 464                         return -EINVAL;
 465         }
 466
 467         /*
 468          * Clamp the width & height into the visible area.  Note we don't
 469          * try to scale the source if part of the visible region is offscreen.
 470          * The caller must handle that by adjusting source offset and size.
 471          */
 472         if ((crtc_x < 0) && ((crtc_x + crtc_w) > 0)) {
 473                 crtc_w += crtc_x;
 474                 crtc_x = 0;
 475         }
 476         if ((crtc_x + crtc_w) <= 0) /* Nothing to display */
 477                 goto out;
 478         if ((crtc_x + crtc_w) > primary_w)
 479                 crtc_w = primary_w - crtc_x;
 480
 481         if ((crtc_y < 0) && ((crtc_y + crtc_h) > 0)) {
 482                 crtc_h += crtc_y;
 483                 crtc_y = 0;
 484         }
 485         if ((crtc_y + crtc_h) <= 0) /* Nothing to display */
 486                 goto out;
 487         if (crtc_y + crtc_h > primary_h)
 488                 crtc_h = primary_h - crtc_y;
 489
 490         if (!crtc_w || !crtc_h) /* Again, nothing to display */
 491                 goto out;
 492
 493         /*
 494          * We may not have a scaler, eg. HSW does not have it any more
 495          */
 496         if (!intel_plane->can_scale && (crtc_w != src_w || crtc_h != src_h))
 497                 return -EINVAL;
 498
 499         /*
 500          * We can take a larger source and scale it down, but
 501          * only so much...  16x is the max on SNB.
 502          */
 503         if (((src_w * src_h) / (crtc_w * crtc_h)) > intel_plane->max_downscale)
 504                 return -EINVAL;
 505
 506         /*
 507          * If the sprite is completely covering the primary plane,
 508          * we can disable the primary and save power.
 509          */
 510         if ((crtc_x == 0) && (crtc_y == 0) &&
 511             (crtc_w == primary_w) && (crtc_h == primary_h))
 512                 disable_primary = true;
 513
 514         mutex_lock(&dev->struct_mutex);
 515
 516         ret = intel_pin_and_fence_fb_obj(dev, obj, NULL);
 517         if (ret)
 518                 goto out_unlock;
 519
 520         intel_plane->obj = obj;
 521
 522         /*
 523          * Be sure to re-enable the primary before the sprite is no longer
 524          * covering it fully.
 525          */
 526         if (!disable_primary)
 527                 intel_enable_primary(crtc);
 528
 529         intel_plane->update_plane(plane, fb, obj, crtc_x, crtc_y,
 530                                   crtc_w, crtc_h, x, y, src_w, src_h);
 531
 532         if (disable_primary)
 533                 intel_disable_primary(crtc);
 534
 535         /* Unpin old obj after new one is active to avoid ugliness */
 536         if (old_obj) {
 537                 /*
 538                  * It's fairly common to simply update the position of
 539                  * an existing object.  In that case, we don't need to
 540                  * wait for vblank to avoid ugliness, we only need to
 541                  * do the pin & ref bookkeeping.
 542                  */
 543                 if (old_obj != obj) {
 544                         mutex_unlock(&dev->struct_mutex);
 545                         intel_wait_for_vblank(dev, to_intel_crtc(crtc)->pipe);
 546                         mutex_lock(&dev->struct_mutex);
 547                 }
 548                 intel_unpin_fb_obj(old_obj);
 549         }
 550
 551 out_unlock:
 552         mutex_unlock(&dev->struct_mutex);
 553 out:
 554         return ret;
 555 }
 556
 557 static int
 558 intel_disable_plane(struct drm_plane *plane)
 559 {
 560         struct drm_device *dev = plane->dev;
 561         struct intel_plane *intel_plane = to_intel_plane(plane);
 562         int ret = 0;
 563
 564         if (plane->crtc)
 565                 intel_enable_primary(plane->crtc);
 566         intel_plane->disable_plane(plane);
 567
 568         if (!intel_plane->obj)
 569                 goto out;
 570
 571         mutex_lock(&dev->struct_mutex);
 572         intel_unpin_fb_obj(intel_plane->obj);
 573         intel_plane->obj = NULL;
 574         mutex_unlock(&dev->struct_mutex);
 575 out:
 576
 577         return ret;
 578 }
 579
 580 static void intel_destroy_plane(struct drm_plane *plane)
 581 {
 582         struct intel_plane *intel_plane = to_intel_plane(plane);
 583         intel_disable_plane(plane);
 584         drm_plane_cleanup(plane);
 585         kfree(intel_plane);
 586 }
 587
 588 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
 589                               struct drm_file *file_priv)
 590 {
 591         struct drm_intel_sprite_colorkey *set = data;
 592         struct drm_mode_object *obj;
 593         struct drm_plane *plane;
 594         struct intel_plane *intel_plane;
 595         int ret = 0;
 596
 597         if (!drm_core_check_feature(dev, DRIVER_MODESET))
 598                 return -ENODEV;
 599
 600         /* Make sure we don't try to enable both src & dest simultaneously */
 601         if ((set->flags & (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE)) == (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE))
 602                 return -EINVAL;
 603
 604         drm_modeset_lock_all(dev);
 605
 606         obj = drm_mode_object_find(dev, set->plane_id, DRM_MODE_OBJECT_PLANE);
 607         if (!obj) {
 608                 ret = -EINVAL;
 609                 goto out_unlock;
 610         }
 611
 612         plane = obj_to_plane(obj);
 613         intel_plane = to_intel_plane(plane);
 614         ret = intel_plane->update_colorkey(plane, set);
 615
 616 out_unlock:
 617         drm_modeset_unlock_all(dev);
 618         return ret;
 619 }
 620
 621 int intel_sprite_get_colorkey(struct drm_device *dev, void *data,
 622                               struct drm_file *file_priv)
 623 {
 624         struct drm_intel_sprite_colorkey *get = data;
 625         struct drm_mode_object *obj;
 626         struct drm_plane *plane;
 627         struct intel_plane *intel_plane;
 628         int ret = 0;
 629
 630         if (!drm_core_check_feature(dev, DRIVER_MODESET))
 631                 return -ENODEV;
 632
 633         drm_modeset_lock_all(dev);
 634
 635         obj = drm_mode_object_find(dev, get->plane_id, DRM_MODE_OBJECT_PLANE);
 636         if (!obj) {
 637                 ret = -EINVAL;
 638                 goto out_unlock;
 639         }
 640
 641         plane = obj_to_plane(obj);
 642         intel_plane = to_intel_plane(plane);
 643         intel_plane->get_colorkey(plane, get);
 644
 645 out_unlock:
 646         drm_modeset_unlock_all(dev);
 647         return ret;
 648 }
 649
 650 static const struct drm_plane_funcs intel_plane_funcs = {
 651         .update_plane = intel_update_plane,
 652         .disable_plane = intel_disable_plane,
 653         .destroy = intel_destroy_plane,
 654 };
 655
 656 static uint32_t ilk_plane_formats[] = {
 657         DRM_FORMAT_XRGB8888,
 658         DRM_FORMAT_YUYV,
 659         DRM_FORMAT_YVYU,
 660         DRM_FORMAT_UYVY,
 661         DRM_FORMAT_VYUY,
 662 };
 663
 664 static uint32_t snb_plane_formats[] = {
 665         DRM_FORMAT_XBGR8888,
 666         DRM_FORMAT_XRGB8888,
 667         DRM_FORMAT_YUYV,
 668         DRM_FORMAT_YVYU,
 669         DRM_FORMAT_UYVY,
 670         DRM_FORMAT_VYUY,
 671 };
 672
 673 int
 674 intel_plane_init(struct drm_device *dev, enum pipe pipe)
 675 {
 676         struct intel_plane *intel_plane;
 677         unsigned long possible_crtcs;
 678         const uint32_t *plane_formats;
 679         int num_plane_formats;
 680         int ret;
 681
 682         if (INTEL_INFO(dev)->gen < 5)
 683                 return -ENODEV;
 684
 685         intel_plane = kzalloc(sizeof(struct intel_plane), GFP_KERNEL);
 686         if (!intel_plane)
 687                 return -ENOMEM;
 688
 689         switch (INTEL_INFO(dev)->gen) {
 690         case 5:
 691         case 6:
 692                 intel_plane->can_scale = true;
 693                 intel_plane->max_downscale = 16;
 694                 intel_plane->update_plane = ilk_update_plane;
 695                 intel_plane->disable_plane = ilk_disable_plane;
 696                 intel_plane->update_colorkey = ilk_update_colorkey;
 697                 intel_plane->get_colorkey = ilk_get_colorkey;
 698
 699                 if (IS_GEN6(dev)) {
 700                         plane_formats = snb_plane_formats;
 701                         num_plane_formats = ARRAY_SIZE(snb_plane_formats);
 702                 } else {
 703                         plane_formats = ilk_plane_formats;
 704                         num_plane_formats = ARRAY_SIZE(ilk_plane_formats);
 705                 }
 706                 break;
 707
 708         case 7:
 709                 if (IS_HASWELL(dev) || IS_VALLEYVIEW(dev))
 710                         intel_plane->can_scale = false;
 711                 else
 712                         intel_plane->can_scale = true;
 713                 intel_plane->max_downscale = 2;
 714                 intel_plane->update_plane = ivb_update_plane;
 715                 intel_plane->disable_plane = ivb_disable_plane;
 716                 intel_plane->update_colorkey = ivb_update_colorkey;
 717                 intel_plane->get_colorkey = ivb_get_colorkey;
 718
 719                 plane_formats = snb_plane_formats;
 720                 num_plane_formats = ARRAY_SIZE(snb_plane_formats);
 721                 break;
 722
 723         default:
 724                 kfree(intel_plane);
 725                 return -ENODEV;
 726         }
 727
 728         intel_plane->pipe = pipe;
 729         possible_crtcs = (1 << pipe);
 730         ret = drm_plane_init(dev, &intel_plane->base, possible_crtcs,
 731                              &intel_plane_funcs,
 732                              plane_formats, num_plane_formats,
 733                              false);
 734         if (ret)
 735                 kfree(intel_plane);
 736
 737         return ret;
 738 }