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 <drm/drmP.h>
  33 #include <drm/drm_crtc.h>
  34 #include <drm/drm_fourcc.h>
  35 #include <drm/drm_rect.h>
  36 #include <drm/drm_atomic.h>
  37 #include <drm/drm_plane_helper.h>
  38 #include "intel_drv.h"
  39 #include "intel_frontbuffer.h"
  40 #include <drm/i915_drm.h>
  41 #include "i915_drv.h"
  42
  43 static bool
  44 format_is_yuv(uint32_t format)
  45 {
  46         switch (format) {
  47         case DRM_FORMAT_YUYV:
  48         case DRM_FORMAT_UYVY:
  49         case DRM_FORMAT_VYUY:
  50         case DRM_FORMAT_YVYU:
  51                 return true;
  52         default:
  53                 return false;
  54         }
  55 }
  56
  57 int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
  58                              int usecs)
  59 {
  60         /* paranoia */
  61         if (!adjusted_mode->crtc_htotal)
  62                 return 1;
  63
  64         return DIV_ROUND_UP(usecs * adjusted_mode->crtc_clock,
  65                             1000 * adjusted_mode->crtc_htotal);
  66 }
  67
  68 /**
  69  * intel_pipe_update_start() - start update of a set of display registers
  70  * @crtc: the crtc of which the registers are going to be updated
  71  * @start_vbl_count: vblank counter return pointer used for error checking
  72  *
  73  * Mark the start of an update to pipe registers that should be updated
  74  * atomically regarding vblank. If the next vblank will happens within
  75  * the next 100 us, this function waits until the vblank passes.
  76  *
  77  * After a successful call to this function, interrupts will be disabled
  78  * until a subsequent call to intel_pipe_update_end(). That is done to
  79  * avoid random delays. The value written to @start_vbl_count should be
  80  * supplied to intel_pipe_update_end() for error checking.
  81  */
  82 void intel_pipe_update_start(struct intel_crtc *crtc)
  83 {
  84         const struct drm_display_mode *adjusted_mode = &crtc->config->base.adjusted_mode;
  85         long timeout = msecs_to_jiffies_timeout(1);
  86         int scanline, min, max, vblank_start;
  87         wait_queue_head_t *wq = drm_crtc_vblank_waitqueue(&crtc->base);
  88         DEFINE_WAIT(wait);
  89
  90         vblank_start = adjusted_mode->crtc_vblank_start;
  91         if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
  92                 vblank_start = DIV_ROUND_UP(vblank_start, 2);
  93
  94         /* FIXME needs to be calibrated sensibly */
  95         min = vblank_start - intel_usecs_to_scanlines(adjusted_mode, 100);
  96         max = vblank_start - 1;
  97
  98         local_irq_disable();
  99
 100         if (min <= 0 || max <= 0)
 101                 return;
 102
 103         if (WARN_ON(drm_crtc_vblank_get(&crtc->base)))
 104                 return;
 105
 106         crtc->debug.min_vbl = min;
 107         crtc->debug.max_vbl = max;
 108         trace_i915_pipe_update_start(crtc);
 109
 110         for (;;) {
 111                 /*
 112                  * prepare_to_wait() has a memory barrier, which guarantees
 113                  * other CPUs can see the task state update by the time we
 114                  * read the scanline.
 115                  */
 116                 prepare_to_wait(wq, &wait, TASK_UNINTERRUPTIBLE);
 117
 118                 scanline = intel_get_crtc_scanline(crtc);
 119                 if (scanline < min || scanline > max)
 120                         break;
 121
 122                 if (timeout <= 0) {
 123                         DRM_ERROR("Potential atomic update failure on pipe %c\n",
 124                                   pipe_name(crtc->pipe));
 125                         break;
 126                 }
 127
 128                 local_irq_enable();
 129
 130                 timeout = schedule_timeout(timeout);
 131
 132                 local_irq_disable();
 133         }
 134
 135         finish_wait(wq, &wait);
 136
 137         drm_crtc_vblank_put(&crtc->base);
 138
 139         crtc->debug.scanline_start = scanline;
 140         crtc->debug.start_vbl_time = ktime_get();
 141         crtc->debug.start_vbl_count = intel_crtc_get_vblank_counter(crtc);
 142
 143         trace_i915_pipe_update_vblank_evaded(crtc);
 144 }
 145
 146 /**
 147  * intel_pipe_update_end() - end update of a set of display registers
 148  * @crtc: the crtc of which the registers were updated
 149  * @start_vbl_count: start vblank counter (used for error checking)
 150  *
 151  * Mark the end of an update started with intel_pipe_update_start(). This
 152  * re-enables interrupts and verifies the update was actually completed
 153  * before a vblank using the value of @start_vbl_count.
 154  */
 155 void intel_pipe_update_end(struct intel_crtc *crtc, struct intel_flip_work *work)
 156 {
 157         enum pipe pipe = crtc->pipe;
 158         int scanline_end = intel_get_crtc_scanline(crtc);
 159         u32 end_vbl_count = intel_crtc_get_vblank_counter(crtc);
 160         ktime_t end_vbl_time = ktime_get();
 161
 162         if (work) {
 163                 work->flip_queued_vblank = end_vbl_count;
 164                 smp_mb__before_atomic();
 165                 atomic_set(&work->pending, 1);
 166         }
 167
 168         trace_i915_pipe_update_end(crtc, end_vbl_count, scanline_end);
 169
 170         /* We're still in the vblank-evade critical section, this can't race.
 171          * Would be slightly nice to just grab the vblank count and arm the
 172          * event outside of the critical section - the spinlock might spin for a
 173          * while ... */
 174         if (crtc->base.state->event) {
 175                 WARN_ON(drm_crtc_vblank_get(&crtc->base) != 0);
 176
 177                 spin_lock(&crtc->base.dev->event_lock);
 178                 drm_crtc_arm_vblank_event(&crtc->base, crtc->base.state->event);
 179                 spin_unlock(&crtc->base.dev->event_lock);
 180
 181                 crtc->base.state->event = NULL;
 182         }
 183
 184         local_irq_enable();
 185
 186         if (crtc->debug.start_vbl_count &&
 187             crtc->debug.start_vbl_count != end_vbl_count) {
 188                 DRM_ERROR("Atomic update failure on pipe %c (start=%u end=%u) time %lld us, min %d, max %d, scanline start %d, end %d\n",
 189                           pipe_name(pipe), crtc->debug.start_vbl_count,
 190                           end_vbl_count,
 191                           ktime_us_delta(end_vbl_time, crtc->debug.start_vbl_time),
 192                           crtc->debug.min_vbl, crtc->debug.max_vbl,
 193                           crtc->debug.scanline_start, scanline_end);
 194         }
 195 }
 196
 197 static void
 198 skl_update_plane(struct drm_plane *drm_plane,
 199                  const struct intel_crtc_state *crtc_state,
 200                  const struct intel_plane_state *plane_state)
 201 {
 202         struct drm_device *dev = drm_plane->dev;
 203         struct drm_i915_private *dev_priv = to_i915(dev);
 204         struct intel_plane *intel_plane = to_intel_plane(drm_plane);
 205         struct drm_framebuffer *fb = plane_state->base.fb;
 206         enum plane_id plane_id = intel_plane->id;
 207         enum pipe pipe = intel_plane->pipe;
 208         u32 plane_ctl;
 209         const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
 210         u32 surf_addr = plane_state->main.offset;
 211         unsigned int rotation = plane_state->base.rotation;
 212         u32 stride = skl_plane_stride(fb, 0, rotation);
 213         int crtc_x = plane_state->base.dst.x1;
 214         int crtc_y = plane_state->base.dst.y1;
 215         uint32_t crtc_w = drm_rect_width(&plane_state->base.dst);
 216         uint32_t crtc_h = drm_rect_height(&plane_state->base.dst);
 217         uint32_t x = plane_state->main.x;
 218         uint32_t y = plane_state->main.y;
 219         uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16;
 220         uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16;
 221
 222         plane_ctl = PLANE_CTL_ENABLE |
 223                 PLANE_CTL_PIPE_GAMMA_ENABLE |
 224                 PLANE_CTL_PIPE_CSC_ENABLE;
 225
 226         plane_ctl |= skl_plane_ctl_format(fb->format->format);
 227         plane_ctl |= skl_plane_ctl_tiling(fb->modifier);
 228
 229         plane_ctl |= skl_plane_ctl_rotation(rotation);
 230
 231         if (key->flags) {
 232                 I915_WRITE(PLANE_KEYVAL(pipe, plane_id), key->min_value);
 233                 I915_WRITE(PLANE_KEYMAX(pipe, plane_id), key->max_value);
 234                 I915_WRITE(PLANE_KEYMSK(pipe, plane_id), key->channel_mask);
 235         }
 236
 237         if (key->flags & I915_SET_COLORKEY_DESTINATION)
 238                 plane_ctl |= PLANE_CTL_KEY_ENABLE_DESTINATION;
 239         else if (key->flags & I915_SET_COLORKEY_SOURCE)
 240                 plane_ctl |= PLANE_CTL_KEY_ENABLE_SOURCE;
 241
 242         /* Sizes are 0 based */
 243         src_w--;
 244         src_h--;
 245         crtc_w--;
 246         crtc_h--;
 247
 248         I915_WRITE(PLANE_OFFSET(pipe, plane_id), (y << 16) | x);
 249         I915_WRITE(PLANE_STRIDE(pipe, plane_id), stride);
 250         I915_WRITE(PLANE_SIZE(pipe, plane_id), (src_h << 16) | src_w);
 251
 252         /* program plane scaler */
 253         if (plane_state->scaler_id >= 0) {
 254                 int scaler_id = plane_state->scaler_id;
 255                 const struct intel_scaler *scaler;
 256
 257                 scaler = &crtc_state->scaler_state.scalers[scaler_id];
 258
 259                 I915_WRITE(SKL_PS_CTRL(pipe, scaler_id),
 260                            PS_SCALER_EN | PS_PLANE_SEL(plane_id) | scaler->mode);
 261                 I915_WRITE(SKL_PS_PWR_GATE(pipe, scaler_id), 0);
 262                 I915_WRITE(SKL_PS_WIN_POS(pipe, scaler_id), (crtc_x << 16) | crtc_y);
 263                 I915_WRITE(SKL_PS_WIN_SZ(pipe, scaler_id),
 264                         ((crtc_w + 1) << 16)|(crtc_h + 1));
 265
 266                 I915_WRITE(PLANE_POS(pipe, plane_id), 0);
 267         } else {
 268                 I915_WRITE(PLANE_POS(pipe, plane_id), (crtc_y << 16) | crtc_x);
 269         }
 270
 271         I915_WRITE(PLANE_CTL(pipe, plane_id), plane_ctl);
 272         I915_WRITE(PLANE_SURF(pipe, plane_id),
 273                    intel_plane_ggtt_offset(plane_state) + surf_addr);
 274         POSTING_READ(PLANE_SURF(pipe, plane_id));
 275 }
 276
 277 static void
 278 skl_disable_plane(struct drm_plane *dplane, struct drm_crtc *crtc)
 279 {
 280         struct drm_device *dev = dplane->dev;
 281         struct drm_i915_private *dev_priv = to_i915(dev);
 282         struct intel_plane *intel_plane = to_intel_plane(dplane);
 283         enum plane_id plane_id = intel_plane->id;
 284         enum pipe pipe = intel_plane->pipe;
 285
 286         I915_WRITE(PLANE_CTL(pipe, plane_id), 0);
 287
 288         I915_WRITE(PLANE_SURF(pipe, plane_id), 0);
 289         POSTING_READ(PLANE_SURF(pipe, plane_id));
 290 }
 291
 292 static void
 293 chv_update_csc(struct intel_plane *intel_plane, uint32_t format)
 294 {
 295         struct drm_i915_private *dev_priv = to_i915(intel_plane->base.dev);
 296         enum plane_id plane_id = intel_plane->id;
 297
 298         /* Seems RGB data bypasses the CSC always */
 299         if (!format_is_yuv(format))
 300                 return;
 301
 302         /*
 303          * BT.601 limited range YCbCr -> full range RGB
 304          *
 305          * |r|   | 6537 4769     0|   |cr  |
 306          * |g| = |-3330 4769 -1605| x |y-64|
 307          * |b|   |    0 4769  8263|   |cb  |
 308          *
 309          * Cb and Cr apparently come in as signed already, so no
 310          * need for any offset. For Y we need to remove the offset.
 311          */
 312         I915_WRITE(SPCSCYGOFF(plane_id), SPCSC_OOFF(0) | SPCSC_IOFF(-64));
 313         I915_WRITE(SPCSCCBOFF(plane_id), SPCSC_OOFF(0) | SPCSC_IOFF(0));
 314         I915_WRITE(SPCSCCROFF(plane_id), SPCSC_OOFF(0) | SPCSC_IOFF(0));
 315
 316         I915_WRITE(SPCSCC01(plane_id), SPCSC_C1(4769) | SPCSC_C0(6537));
 317         I915_WRITE(SPCSCC23(plane_id), SPCSC_C1(-3330) | SPCSC_C0(0));
 318         I915_WRITE(SPCSCC45(plane_id), SPCSC_C1(-1605) | SPCSC_C0(4769));
 319         I915_WRITE(SPCSCC67(plane_id), SPCSC_C1(4769) | SPCSC_C0(0));
 320         I915_WRITE(SPCSCC8(plane_id), SPCSC_C0(8263));
 321
 322         I915_WRITE(SPCSCYGICLAMP(plane_id), SPCSC_IMAX(940) | SPCSC_IMIN(64));
 323         I915_WRITE(SPCSCCBICLAMP(plane_id), SPCSC_IMAX(448) | SPCSC_IMIN(-448));
 324         I915_WRITE(SPCSCCRICLAMP(plane_id), SPCSC_IMAX(448) | SPCSC_IMIN(-448));
 325
 326         I915_WRITE(SPCSCYGOCLAMP(plane_id), SPCSC_OMAX(1023) | SPCSC_OMIN(0));
 327         I915_WRITE(SPCSCCBOCLAMP(plane_id), SPCSC_OMAX(1023) | SPCSC_OMIN(0));
 328         I915_WRITE(SPCSCCROCLAMP(plane_id), SPCSC_OMAX(1023) | SPCSC_OMIN(0));
 329 }
 330
 331 static void
 332 vlv_update_plane(struct drm_plane *dplane,
 333                  const struct intel_crtc_state *crtc_state,
 334                  const struct intel_plane_state *plane_state)
 335 {
 336         struct drm_device *dev = dplane->dev;
 337         struct drm_i915_private *dev_priv = to_i915(dev);
 338         struct intel_plane *intel_plane = to_intel_plane(dplane);
 339         struct drm_framebuffer *fb = plane_state->base.fb;
 340         enum pipe pipe = intel_plane->pipe;
 341         enum plane_id plane_id = intel_plane->id;
 342         u32 sprctl;
 343         u32 sprsurf_offset, linear_offset;
 344         unsigned int rotation = plane_state->base.rotation;
 345         const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
 346         int crtc_x = plane_state->base.dst.x1;
 347         int crtc_y = plane_state->base.dst.y1;
 348         uint32_t crtc_w = drm_rect_width(&plane_state->base.dst);
 349         uint32_t crtc_h = drm_rect_height(&plane_state->base.dst);
 350         uint32_t x = plane_state->base.src.x1 >> 16;
 351         uint32_t y = plane_state->base.src.y1 >> 16;
 352         uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16;
 353         uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16;
 354
 355         sprctl = SP_ENABLE;
 356
 357         switch (fb->format->format) {
 358         case DRM_FORMAT_YUYV:
 359                 sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YUYV;
 360                 break;
 361         case DRM_FORMAT_YVYU:
 362                 sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YVYU;
 363                 break;
 364         case DRM_FORMAT_UYVY:
 365                 sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_UYVY;
 366                 break;
 367         case DRM_FORMAT_VYUY:
 368                 sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_VYUY;
 369                 break;
 370         case DRM_FORMAT_RGB565:
 371                 sprctl |= SP_FORMAT_BGR565;
 372                 break;
 373         case DRM_FORMAT_XRGB8888:
 374                 sprctl |= SP_FORMAT_BGRX8888;
 375                 break;
 376         case DRM_FORMAT_ARGB8888:
 377                 sprctl |= SP_FORMAT_BGRA8888;
 378                 break;
 379         case DRM_FORMAT_XBGR2101010:
 380                 sprctl |= SP_FORMAT_RGBX1010102;
 381                 break;
 382         case DRM_FORMAT_ABGR2101010:
 383                 sprctl |= SP_FORMAT_RGBA1010102;
 384                 break;
 385         case DRM_FORMAT_XBGR8888:
 386                 sprctl |= SP_FORMAT_RGBX8888;
 387                 break;
 388         case DRM_FORMAT_ABGR8888:
 389                 sprctl |= SP_FORMAT_RGBA8888;
 390                 break;
 391         default:
 392                 /*
 393                  * If we get here one of the upper layers failed to filter
 394                  * out the unsupported plane formats
 395                  */
 396                 BUG();
 397                 break;
 398         }
 399
 400         /*
 401          * Enable gamma to match primary/cursor plane behaviour.
 402          * FIXME should be user controllable via propertiesa.
 403          */
 404         sprctl |= SP_GAMMA_ENABLE;
 405
 406         if (fb->modifier == I915_FORMAT_MOD_X_TILED)
 407                 sprctl |= SP_TILED;
 408
 409         if (rotation & DRM_ROTATE_180)
 410                 sprctl |= SP_ROTATE_180;
 411
 412         if (rotation & DRM_REFLECT_X)
 413                 sprctl |= SP_MIRROR;
 414
 415         /* Sizes are 0 based */
 416         src_w--;
 417         src_h--;
 418         crtc_w--;
 419         crtc_h--;
 420
 421         intel_add_fb_offsets(&x, &y, plane_state, 0);
 422         sprsurf_offset = intel_compute_tile_offset(&x, &y, plane_state, 0);
 423
 424         if (rotation & DRM_ROTATE_180) {
 425                 x += src_w;
 426                 y += src_h;
 427         } else if (rotation & DRM_REFLECT_X) {
 428                 x += src_w;
 429         }
 430
 431         linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
 432
 433         if (key->flags) {
 434                 I915_WRITE(SPKEYMINVAL(pipe, plane_id), key->min_value);
 435                 I915_WRITE(SPKEYMAXVAL(pipe, plane_id), key->max_value);
 436                 I915_WRITE(SPKEYMSK(pipe, plane_id), key->channel_mask);
 437         }
 438
 439         if (key->flags & I915_SET_COLORKEY_SOURCE)
 440                 sprctl |= SP_SOURCE_KEY;
 441
 442         if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B)
 443                 chv_update_csc(intel_plane, fb->format->format);
 444
 445         I915_WRITE(SPSTRIDE(pipe, plane_id), fb->pitches[0]);
 446         I915_WRITE(SPPOS(pipe, plane_id), (crtc_y << 16) | crtc_x);
 447
 448         if (fb->modifier == I915_FORMAT_MOD_X_TILED)
 449                 I915_WRITE(SPTILEOFF(pipe, plane_id), (y << 16) | x);
 450         else
 451                 I915_WRITE(SPLINOFF(pipe, plane_id), linear_offset);
 452
 453         I915_WRITE(SPCONSTALPHA(pipe, plane_id), 0);
 454
 455         I915_WRITE(SPSIZE(pipe, plane_id), (crtc_h << 16) | crtc_w);
 456         I915_WRITE(SPCNTR(pipe, plane_id), sprctl);
 457         I915_WRITE(SPSURF(pipe, plane_id),
 458                    intel_plane_ggtt_offset(plane_state) + sprsurf_offset);
 459         POSTING_READ(SPSURF(pipe, plane_id));
 460 }
 461
 462 static void
 463 vlv_disable_plane(struct drm_plane *dplane, struct drm_crtc *crtc)
 464 {
 465         struct drm_device *dev = dplane->dev;
 466         struct drm_i915_private *dev_priv = to_i915(dev);
 467         struct intel_plane *intel_plane = to_intel_plane(dplane);
 468         enum pipe pipe = intel_plane->pipe;
 469         enum plane_id plane_id = intel_plane->id;
 470
 471         I915_WRITE(SPCNTR(pipe, plane_id), 0);
 472
 473         I915_WRITE(SPSURF(pipe, plane_id), 0);
 474         POSTING_READ(SPSURF(pipe, plane_id));
 475 }
 476
 477 static void
 478 ivb_update_plane(struct drm_plane *plane,
 479                  const struct intel_crtc_state *crtc_state,
 480                  const struct intel_plane_state *plane_state)
 481 {
 482         struct drm_device *dev = plane->dev;
 483         struct drm_i915_private *dev_priv = to_i915(dev);
 484         struct intel_plane *intel_plane = to_intel_plane(plane);
 485         struct drm_framebuffer *fb = plane_state->base.fb;
 486         enum pipe pipe = intel_plane->pipe;
 487         u32 sprctl, sprscale = 0;
 488         u32 sprsurf_offset, linear_offset;
 489         unsigned int rotation = plane_state->base.rotation;
 490         const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
 491         int crtc_x = plane_state->base.dst.x1;
 492         int crtc_y = plane_state->base.dst.y1;
 493         uint32_t crtc_w = drm_rect_width(&plane_state->base.dst);
 494         uint32_t crtc_h = drm_rect_height(&plane_state->base.dst);
 495         uint32_t x = plane_state->base.src.x1 >> 16;
 496         uint32_t y = plane_state->base.src.y1 >> 16;
 497         uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16;
 498         uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16;
 499
 500         sprctl = SPRITE_ENABLE;
 501
 502         switch (fb->format->format) {
 503         case DRM_FORMAT_XBGR8888:
 504                 sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX;
 505                 break;
 506         case DRM_FORMAT_XRGB8888:
 507                 sprctl |= SPRITE_FORMAT_RGBX888;
 508                 break;
 509         case DRM_FORMAT_YUYV:
 510                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YUYV;
 511                 break;
 512         case DRM_FORMAT_YVYU:
 513                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YVYU;
 514                 break;
 515         case DRM_FORMAT_UYVY:
 516                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_UYVY;
 517                 break;
 518         case DRM_FORMAT_VYUY:
 519                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_VYUY;
 520                 break;
 521         default:
 522                 BUG();
 523         }
 524
 525         /*
 526          * Enable gamma to match primary/cursor plane behaviour.
 527          * FIXME should be user controllable via propertiesa.
 528          */
 529         sprctl |= SPRITE_GAMMA_ENABLE;
 530
 531         if (fb->modifier == I915_FORMAT_MOD_X_TILED)
 532                 sprctl |= SPRITE_TILED;
 533
 534         if (rotation & DRM_ROTATE_180)
 535                 sprctl |= SPRITE_ROTATE_180;
 536
 537         if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
 538                 sprctl &= ~SPRITE_TRICKLE_FEED_DISABLE;
 539         else
 540                 sprctl |= SPRITE_TRICKLE_FEED_DISABLE;
 541
 542         if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
 543                 sprctl |= SPRITE_PIPE_CSC_ENABLE;
 544
 545         /* Sizes are 0 based */
 546         src_w--;
 547         src_h--;
 548         crtc_w--;
 549         crtc_h--;
 550
 551         if (crtc_w != src_w || crtc_h != src_h)
 552                 sprscale = SPRITE_SCALE_ENABLE | (src_w << 16) | src_h;
 553
 554         intel_add_fb_offsets(&x, &y, plane_state, 0);
 555         sprsurf_offset = intel_compute_tile_offset(&x, &y, plane_state, 0);
 556
 557         /* HSW+ does this automagically in hardware */
 558         if (!IS_HASWELL(dev_priv) && !IS_BROADWELL(dev_priv) &&
 559             rotation & DRM_ROTATE_180) {
 560                 x += src_w;
 561                 y += src_h;
 562         }
 563
 564         linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
 565
 566         if (key->flags) {
 567                 I915_WRITE(SPRKEYVAL(pipe), key->min_value);
 568                 I915_WRITE(SPRKEYMAX(pipe), key->max_value);
 569                 I915_WRITE(SPRKEYMSK(pipe), key->channel_mask);
 570         }
 571
 572         if (key->flags & I915_SET_COLORKEY_DESTINATION)
 573                 sprctl |= SPRITE_DEST_KEY;
 574         else if (key->flags & I915_SET_COLORKEY_SOURCE)
 575                 sprctl |= SPRITE_SOURCE_KEY;
 576
 577         I915_WRITE(SPRSTRIDE(pipe), fb->pitches[0]);
 578         I915_WRITE(SPRPOS(pipe), (crtc_y << 16) | crtc_x);
 579
 580         /* HSW consolidates SPRTILEOFF and SPRLINOFF into a single SPROFFSET
 581          * register */
 582         if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
 583                 I915_WRITE(SPROFFSET(pipe), (y << 16) | x);
 584         else if (fb->modifier == I915_FORMAT_MOD_X_TILED)
 585                 I915_WRITE(SPRTILEOFF(pipe), (y << 16) | x);
 586         else
 587                 I915_WRITE(SPRLINOFF(pipe), linear_offset);
 588
 589         I915_WRITE(SPRSIZE(pipe), (crtc_h << 16) | crtc_w);
 590         if (intel_plane->can_scale)
 591                 I915_WRITE(SPRSCALE(pipe), sprscale);
 592         I915_WRITE(SPRCTL(pipe), sprctl);
 593         I915_WRITE(SPRSURF(pipe),
 594                    intel_plane_ggtt_offset(plane_state) + sprsurf_offset);
 595         POSTING_READ(SPRSURF(pipe));
 596 }
 597
 598 static void
 599 ivb_disable_plane(struct drm_plane *plane, struct drm_crtc *crtc)
 600 {
 601         struct drm_device *dev = plane->dev;
 602         struct drm_i915_private *dev_priv = to_i915(dev);
 603         struct intel_plane *intel_plane = to_intel_plane(plane);
 604         int pipe = intel_plane->pipe;
 605
 606         I915_WRITE(SPRCTL(pipe), 0);
 607         /* Can't leave the scaler enabled... */
 608         if (intel_plane->can_scale)
 609                 I915_WRITE(SPRSCALE(pipe), 0);
 610
 611         I915_WRITE(SPRSURF(pipe), 0);
 612         POSTING_READ(SPRSURF(pipe));
 613 }
 614
 615 static void
 616 ilk_update_plane(struct drm_plane *plane,
 617                  const struct intel_crtc_state *crtc_state,
 618                  const struct intel_plane_state *plane_state)
 619 {
 620         struct drm_device *dev = plane->dev;
 621         struct drm_i915_private *dev_priv = to_i915(dev);
 622         struct intel_plane *intel_plane = to_intel_plane(plane);
 623         struct drm_framebuffer *fb = plane_state->base.fb;
 624         int pipe = intel_plane->pipe;
 625         u32 dvscntr, dvsscale;
 626         u32 dvssurf_offset, linear_offset;
 627         unsigned int rotation = plane_state->base.rotation;
 628         const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
 629         int crtc_x = plane_state->base.dst.x1;
 630         int crtc_y = plane_state->base.dst.y1;
 631         uint32_t crtc_w = drm_rect_width(&plane_state->base.dst);
 632         uint32_t crtc_h = drm_rect_height(&plane_state->base.dst);
 633         uint32_t x = plane_state->base.src.x1 >> 16;
 634         uint32_t y = plane_state->base.src.y1 >> 16;
 635         uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16;
 636         uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16;
 637
 638         dvscntr = DVS_ENABLE;
 639
 640         switch (fb->format->format) {
 641         case DRM_FORMAT_XBGR8888:
 642                 dvscntr |= DVS_FORMAT_RGBX888 | DVS_RGB_ORDER_XBGR;
 643                 break;
 644         case DRM_FORMAT_XRGB8888:
 645                 dvscntr |= DVS_FORMAT_RGBX888;
 646                 break;
 647         case DRM_FORMAT_YUYV:
 648                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YUYV;
 649                 break;
 650         case DRM_FORMAT_YVYU:
 651                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YVYU;
 652                 break;
 653         case DRM_FORMAT_UYVY:
 654                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_UYVY;
 655                 break;
 656         case DRM_FORMAT_VYUY:
 657                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_VYUY;
 658                 break;
 659         default:
 660                 BUG();
 661         }
 662
 663         /*
 664          * Enable gamma to match primary/cursor plane behaviour.
 665          * FIXME should be user controllable via propertiesa.
 666          */
 667         dvscntr |= DVS_GAMMA_ENABLE;
 668
 669         if (fb->modifier == I915_FORMAT_MOD_X_TILED)
 670                 dvscntr |= DVS_TILED;
 671
 672         if (rotation & DRM_ROTATE_180)
 673                 dvscntr |= DVS_ROTATE_180;
 674
 675         if (IS_GEN6(dev_priv))
 676                 dvscntr |= DVS_TRICKLE_FEED_DISABLE; /* must disable */
 677
 678         /* Sizes are 0 based */
 679         src_w--;
 680         src_h--;
 681         crtc_w--;
 682         crtc_h--;
 683
 684         dvsscale = 0;
 685         if (crtc_w != src_w || crtc_h != src_h)
 686                 dvsscale = DVS_SCALE_ENABLE | (src_w << 16) | src_h;
 687
 688         intel_add_fb_offsets(&x, &y, plane_state, 0);
 689         dvssurf_offset = intel_compute_tile_offset(&x, &y, plane_state, 0);
 690
 691         if (rotation & DRM_ROTATE_180) {
 692                 x += src_w;
 693                 y += src_h;
 694         }
 695
 696         linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
 697
 698         if (key->flags) {
 699                 I915_WRITE(DVSKEYVAL(pipe), key->min_value);
 700                 I915_WRITE(DVSKEYMAX(pipe), key->max_value);
 701                 I915_WRITE(DVSKEYMSK(pipe), key->channel_mask);
 702         }
 703
 704         if (key->flags & I915_SET_COLORKEY_DESTINATION)
 705                 dvscntr |= DVS_DEST_KEY;
 706         else if (key->flags & I915_SET_COLORKEY_SOURCE)
 707                 dvscntr |= DVS_SOURCE_KEY;
 708
 709         I915_WRITE(DVSSTRIDE(pipe), fb->pitches[0]);
 710         I915_WRITE(DVSPOS(pipe), (crtc_y << 16) | crtc_x);
 711
 712         if (fb->modifier == I915_FORMAT_MOD_X_TILED)
 713                 I915_WRITE(DVSTILEOFF(pipe), (y << 16) | x);
 714         else
 715                 I915_WRITE(DVSLINOFF(pipe), linear_offset);
 716
 717         I915_WRITE(DVSSIZE(pipe), (crtc_h << 16) | crtc_w);
 718         I915_WRITE(DVSSCALE(pipe), dvsscale);
 719         I915_WRITE(DVSCNTR(pipe), dvscntr);
 720         I915_WRITE(DVSSURF(pipe),
 721                    intel_plane_ggtt_offset(plane_state) + dvssurf_offset);
 722         POSTING_READ(DVSSURF(pipe));
 723 }
 724
 725 static void
 726 ilk_disable_plane(struct drm_plane *plane, struct drm_crtc *crtc)
 727 {
 728         struct drm_device *dev = plane->dev;
 729         struct drm_i915_private *dev_priv = to_i915(dev);
 730         struct intel_plane *intel_plane = to_intel_plane(plane);
 731         int pipe = intel_plane->pipe;
 732
 733         I915_WRITE(DVSCNTR(pipe), 0);
 734         /* Disable the scaler */
 735         I915_WRITE(DVSSCALE(pipe), 0);
 736
 737         I915_WRITE(DVSSURF(pipe), 0);
 738         POSTING_READ(DVSSURF(pipe));
 739 }
 740
 741 static int
 742 intel_check_sprite_plane(struct drm_plane *plane,
 743                          struct intel_crtc_state *crtc_state,
 744                          struct intel_plane_state *state)
 745 {
 746         struct drm_i915_private *dev_priv = to_i915(plane->dev);
 747         struct drm_crtc *crtc = state->base.crtc;
 748         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 749         struct intel_plane *intel_plane = to_intel_plane(plane);
 750         struct drm_framebuffer *fb = state->base.fb;
 751         int crtc_x, crtc_y;
 752         unsigned int crtc_w, crtc_h;
 753         uint32_t src_x, src_y, src_w, src_h;
 754         struct drm_rect *src = &state->base.src;
 755         struct drm_rect *dst = &state->base.dst;
 756         const struct drm_rect *clip = &state->clip;
 757         int hscale, vscale;
 758         int max_scale, min_scale;
 759         bool can_scale;
 760         int ret;
 761
 762         *src = drm_plane_state_src(&state->base);
 763         *dst = drm_plane_state_dest(&state->base);
 764
 765         if (!fb) {
 766                 state->base.visible = false;
 767                 return 0;
 768         }
 769
 770         /* Don't modify another pipe's plane */
 771         if (intel_plane->pipe != intel_crtc->pipe) {
 772                 DRM_DEBUG_KMS("Wrong plane <-> crtc mapping\n");
 773                 return -EINVAL;
 774         }
 775
 776         /* FIXME check all gen limits */
 777         if (fb->width < 3 || fb->height < 3 || fb->pitches[0] > 16384) {
 778                 DRM_DEBUG_KMS("Unsuitable framebuffer for plane\n");
 779                 return -EINVAL;
 780         }
 781
 782         /* setup can_scale, min_scale, max_scale */
 783         if (INTEL_GEN(dev_priv) >= 9) {
 784                 /* use scaler when colorkey is not required */
 785                 if (state->ckey.flags == I915_SET_COLORKEY_NONE) {
 786                         can_scale = 1;
 787                         min_scale = 1;
 788                         max_scale = skl_max_scale(intel_crtc, crtc_state);
 789                 } else {
 790                         can_scale = 0;
 791                         min_scale = DRM_PLANE_HELPER_NO_SCALING;
 792                         max_scale = DRM_PLANE_HELPER_NO_SCALING;
 793                 }
 794         } else {
 795                 can_scale = intel_plane->can_scale;
 796                 max_scale = intel_plane->max_downscale << 16;
 797                 min_scale = intel_plane->can_scale ? 1 : (1 << 16);
 798         }
 799
 800         /*
 801          * FIXME the following code does a bunch of fuzzy adjustments to the
 802          * coordinates and sizes. We probably need some way to decide whether
 803          * more strict checking should be done instead.
 804          */
 805         drm_rect_rotate(src, fb->width << 16, fb->height << 16,
 806                         state->base.rotation);
 807
 808         hscale = drm_rect_calc_hscale_relaxed(src, dst, min_scale, max_scale);
 809         BUG_ON(hscale < 0);
 810
 811         vscale = drm_rect_calc_vscale_relaxed(src, dst, min_scale, max_scale);
 812         BUG_ON(vscale < 0);
 813
 814         state->base.visible = drm_rect_clip_scaled(src, dst, clip, hscale, vscale);
 815
 816         crtc_x = dst->x1;
 817         crtc_y = dst->y1;
 818         crtc_w = drm_rect_width(dst);
 819         crtc_h = drm_rect_height(dst);
 820
 821         if (state->base.visible) {
 822                 /* check again in case clipping clamped the results */
 823                 hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale);
 824                 if (hscale < 0) {
 825                         DRM_DEBUG_KMS("Horizontal scaling factor out of limits\n");
 826                         drm_rect_debug_print("src: ", src, true);
 827                         drm_rect_debug_print("dst: ", dst, false);
 828
 829                         return hscale;
 830                 }
 831
 832                 vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale);
 833                 if (vscale < 0) {
 834                         DRM_DEBUG_KMS("Vertical scaling factor out of limits\n");
 835                         drm_rect_debug_print("src: ", src, true);
 836                         drm_rect_debug_print("dst: ", dst, false);
 837
 838                         return vscale;
 839                 }
 840
 841                 /* Make the source viewport size an exact multiple of the scaling factors. */
 842                 drm_rect_adjust_size(src,
 843                                      drm_rect_width(dst) * hscale - drm_rect_width(src),
 844                                      drm_rect_height(dst) * vscale - drm_rect_height(src));
 845
 846                 drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16,
 847                                     state->base.rotation);
 848
 849                 /* sanity check to make sure the src viewport wasn't enlarged */
 850                 WARN_ON(src->x1 < (int) state->base.src_x ||
 851                         src->y1 < (int) state->base.src_y ||
 852                         src->x2 > (int) state->base.src_x + state->base.src_w ||
 853                         src->y2 > (int) state->base.src_y + state->base.src_h);
 854
 855                 /*
 856                  * Hardware doesn't handle subpixel coordinates.
 857                  * Adjust to (macro)pixel boundary, but be careful not to
 858                  * increase the source viewport size, because that could
 859                  * push the downscaling factor out of bounds.
 860                  */
 861                 src_x = src->x1 >> 16;
 862                 src_w = drm_rect_width(src) >> 16;
 863                 src_y = src->y1 >> 16;
 864                 src_h = drm_rect_height(src) >> 16;
 865
 866                 if (format_is_yuv(fb->format->format)) {
 867                         src_x &= ~1;
 868                         src_w &= ~1;
 869
 870                         /*
 871                          * Must keep src and dst the
 872                          * same if we can't scale.
 873                          */
 874                         if (!can_scale)
 875                                 crtc_w &= ~1;
 876
 877                         if (crtc_w == 0)
 878                                 state->base.visible = false;
 879                 }
 880         }
 881
 882         /* Check size restrictions when scaling */
 883         if (state->base.visible && (src_w != crtc_w || src_h != crtc_h)) {
 884                 unsigned int width_bytes;
 885                 int cpp = fb->format->cpp[0];
 886
 887                 WARN_ON(!can_scale);
 888
 889                 /* FIXME interlacing min height is 6 */
 890
 891                 if (crtc_w < 3 || crtc_h < 3)
 892                         state->base.visible = false;
 893
 894                 if (src_w < 3 || src_h < 3)
 895                         state->base.visible = false;
 896
 897                 width_bytes = ((src_x * cpp) & 63) + src_w * cpp;
 898
 899                 if (INTEL_GEN(dev_priv) < 9 && (src_w > 2048 || src_h > 2048 ||
 900                     width_bytes > 4096 || fb->pitches[0] > 4096)) {
 901                         DRM_DEBUG_KMS("Source dimensions exceed hardware limits\n");
 902                         return -EINVAL;
 903                 }
 904         }
 905
 906         if (state->base.visible) {
 907                 src->x1 = src_x << 16;
 908                 src->x2 = (src_x + src_w) << 16;
 909                 src->y1 = src_y << 16;
 910                 src->y2 = (src_y + src_h) << 16;
 911         }
 912
 913         dst->x1 = crtc_x;
 914         dst->x2 = crtc_x + crtc_w;
 915         dst->y1 = crtc_y;
 916         dst->y2 = crtc_y + crtc_h;
 917
 918         if (INTEL_GEN(dev_priv) >= 9) {
 919                 ret = skl_check_plane_surface(state);
 920                 if (ret)
 921                         return ret;
 922         }
 923
 924         return 0;
 925 }
 926
 927 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
 928                               struct drm_file *file_priv)
 929 {
 930         struct drm_i915_private *dev_priv = to_i915(dev);
 931         struct drm_intel_sprite_colorkey *set = data;
 932         struct drm_plane *plane;
 933         struct drm_plane_state *plane_state;
 934         struct drm_atomic_state *state;
 935         struct drm_modeset_acquire_ctx ctx;
 936         int ret = 0;
 937
 938         /* Make sure we don't try to enable both src & dest simultaneously */
 939         if ((set->flags & (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE)) == (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE))
 940                 return -EINVAL;
 941
 942         if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
 943             set->flags & I915_SET_COLORKEY_DESTINATION)
 944                 return -EINVAL;
 945
 946         plane = drm_plane_find(dev, set->plane_id);
 947         if (!plane || plane->type != DRM_PLANE_TYPE_OVERLAY)
 948                 return -ENOENT;
 949
 950         drm_modeset_acquire_init(&ctx, 0);
 951
 952         state = drm_atomic_state_alloc(plane->dev);
 953         if (!state) {
 954                 ret = -ENOMEM;
 955                 goto out;
 956         }
 957         state->acquire_ctx = &ctx;
 958
 959         while (1) {
 960                 plane_state = drm_atomic_get_plane_state(state, plane);
 961                 ret = PTR_ERR_OR_ZERO(plane_state);
 962                 if (!ret) {
 963                         to_intel_plane_state(plane_state)->ckey = *set;
 964                         ret = drm_atomic_commit(state);
 965                 }
 966
 967                 if (ret != -EDEADLK)
 968                         break;
 969
 970                 drm_atomic_state_clear(state);
 971                 drm_modeset_backoff(&ctx);
 972         }
 973
 974         drm_atomic_state_put(state);
 975 out:
 976         drm_modeset_drop_locks(&ctx);
 977         drm_modeset_acquire_fini(&ctx);
 978         return ret;
 979 }
 980
 981 static const uint32_t ilk_plane_formats[] = {
 982         DRM_FORMAT_XRGB8888,
 983         DRM_FORMAT_YUYV,
 984         DRM_FORMAT_YVYU,
 985         DRM_FORMAT_UYVY,
 986         DRM_FORMAT_VYUY,
 987 };
 988
 989 static const uint32_t snb_plane_formats[] = {
 990         DRM_FORMAT_XBGR8888,
 991         DRM_FORMAT_XRGB8888,
 992         DRM_FORMAT_YUYV,
 993         DRM_FORMAT_YVYU,
 994         DRM_FORMAT_UYVY,
 995         DRM_FORMAT_VYUY,
 996 };
 997
 998 static const uint32_t vlv_plane_formats[] = {
 999         DRM_FORMAT_RGB565,
1000         DRM_FORMAT_ABGR8888,
1001         DRM_FORMAT_ARGB8888,
1002         DRM_FORMAT_XBGR8888,
1003         DRM_FORMAT_XRGB8888,
1004         DRM_FORMAT_XBGR2101010,
1005         DRM_FORMAT_ABGR2101010,
1006         DRM_FORMAT_YUYV,
1007         DRM_FORMAT_YVYU,
1008         DRM_FORMAT_UYVY,
1009         DRM_FORMAT_VYUY,
1010 };
1011
1012 static uint32_t skl_plane_formats[] = {
1013         DRM_FORMAT_RGB565,
1014         DRM_FORMAT_ABGR8888,
1015         DRM_FORMAT_ARGB8888,
1016         DRM_FORMAT_XBGR8888,
1017         DRM_FORMAT_XRGB8888,
1018         DRM_FORMAT_YUYV,
1019         DRM_FORMAT_YVYU,
1020         DRM_FORMAT_UYVY,
1021         DRM_FORMAT_VYUY,
1022 };
1023
1024 struct intel_plane *
1025 intel_sprite_plane_create(struct drm_i915_private *dev_priv,
1026                           enum pipe pipe, int plane)
1027 {
1028         struct intel_plane *intel_plane = NULL;
1029         struct intel_plane_state *state = NULL;
1030         unsigned long possible_crtcs;
1031         const uint32_t *plane_formats;
1032         unsigned int supported_rotations;
1033         int num_plane_formats;
1034         int ret;
1035
1036         intel_plane = kzalloc(sizeof(*intel_plane), GFP_KERNEL);
1037         if (!intel_plane) {
1038                 ret = -ENOMEM;
1039                 goto fail;
1040         }
1041
1042         state = intel_create_plane_state(&intel_plane->base);
1043         if (!state) {
1044                 ret = -ENOMEM;
1045                 goto fail;
1046         }
1047         intel_plane->base.state = &state->base;
1048
1049         if (INTEL_GEN(dev_priv) >= 9) {
1050                 intel_plane->can_scale = true;
1051                 state->scaler_id = -1;
1052
1053                 intel_plane->update_plane = skl_update_plane;
1054                 intel_plane->disable_plane = skl_disable_plane;
1055
1056                 plane_formats = skl_plane_formats;
1057                 num_plane_formats = ARRAY_SIZE(skl_plane_formats);
1058         } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
1059                 intel_plane->can_scale = false;
1060                 intel_plane->max_downscale = 1;
1061
1062                 intel_plane->update_plane = vlv_update_plane;
1063                 intel_plane->disable_plane = vlv_disable_plane;
1064
1065                 plane_formats = vlv_plane_formats;
1066                 num_plane_formats = ARRAY_SIZE(vlv_plane_formats);
1067         } else if (INTEL_GEN(dev_priv) >= 7) {
1068                 if (IS_IVYBRIDGE(dev_priv)) {
1069                         intel_plane->can_scale = true;
1070                         intel_plane->max_downscale = 2;
1071                 } else {
1072                         intel_plane->can_scale = false;
1073                         intel_plane->max_downscale = 1;
1074                 }
1075
1076                 intel_plane->update_plane = ivb_update_plane;
1077                 intel_plane->disable_plane = ivb_disable_plane;
1078
1079                 plane_formats = snb_plane_formats;
1080                 num_plane_formats = ARRAY_SIZE(snb_plane_formats);
1081         } else {
1082                 intel_plane->can_scale = true;
1083                 intel_plane->max_downscale = 16;
1084
1085                 intel_plane->update_plane = ilk_update_plane;
1086                 intel_plane->disable_plane = ilk_disable_plane;
1087
1088                 if (IS_GEN6(dev_priv)) {
1089                         plane_formats = snb_plane_formats;
1090                         num_plane_formats = ARRAY_SIZE(snb_plane_formats);
1091                 } else {
1092                         plane_formats = ilk_plane_formats;
1093                         num_plane_formats = ARRAY_SIZE(ilk_plane_formats);
1094                 }
1095         }
1096
1097         if (INTEL_GEN(dev_priv) >= 9) {
1098                 supported_rotations =
1099                         DRM_ROTATE_0 | DRM_ROTATE_90 |
1100                         DRM_ROTATE_180 | DRM_ROTATE_270;
1101         } else if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B) {
1102                 supported_rotations =
1103                         DRM_ROTATE_0 | DRM_ROTATE_180 |
1104                         DRM_REFLECT_X;
1105         } else {
1106                 supported_rotations =
1107                         DRM_ROTATE_0 | DRM_ROTATE_180;
1108         }
1109
1110         intel_plane->pipe = pipe;
1111         intel_plane->plane = plane;
1112         intel_plane->id = PLANE_SPRITE0 + plane;
1113         intel_plane->frontbuffer_bit = INTEL_FRONTBUFFER_SPRITE(pipe, plane);
1114         intel_plane->check_plane = intel_check_sprite_plane;
1115
1116         possible_crtcs = (1 << pipe);
1117
1118         if (INTEL_GEN(dev_priv) >= 9)
1119                 ret = drm_universal_plane_init(&dev_priv->drm, &intel_plane->base,
1120                                                possible_crtcs, &intel_plane_funcs,
1121                                                plane_formats, num_plane_formats,
1122                                                DRM_PLANE_TYPE_OVERLAY,
1123                                                "plane %d%c", plane + 2, pipe_name(pipe));
1124         else
1125                 ret = drm_universal_plane_init(&dev_priv->drm, &intel_plane->base,
1126                                                possible_crtcs, &intel_plane_funcs,
1127                                                plane_formats, num_plane_formats,
1128                                                DRM_PLANE_TYPE_OVERLAY,
1129                                                "sprite %c", sprite_name(pipe, plane));
1130         if (ret)
1131                 goto fail;
1132
1133         drm_plane_create_rotation_property(&intel_plane->base,
1134                                            DRM_ROTATE_0,
1135                                            supported_rotations);
1136
1137         drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
1138
1139         return intel_plane;
1140
1141 fail:
1142         kfree(state);
1143         kfree(intel_plane);
1144
1145         return ERR_PTR(ret);
1146 }