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         const int pipe = intel_plane->pipe;
 207         const int plane = intel_plane->plane + 1;
 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->pixel_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), key->min_value);
 233                 I915_WRITE(PLANE_KEYMAX(pipe, plane), key->max_value);
 234                 I915_WRITE(PLANE_KEYMSK(pipe, plane), 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), (y << 16) | x);
 249         I915_WRITE(PLANE_STRIDE(pipe, plane), stride);
 250         I915_WRITE(PLANE_SIZE(pipe, plane), (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                 DRM_DEBUG_KMS("plane = %d PS_PLANE_SEL(plane) = 0x%x\n", plane,
 258                         PS_PLANE_SEL(plane));
 259
 260                 scaler = &crtc_state->scaler_state.scalers[scaler_id];
 261
 262                 I915_WRITE(SKL_PS_CTRL(pipe, scaler_id),
 263                            PS_SCALER_EN | PS_PLANE_SEL(plane) | scaler->mode);
 264                 I915_WRITE(SKL_PS_PWR_GATE(pipe, scaler_id), 0);
 265                 I915_WRITE(SKL_PS_WIN_POS(pipe, scaler_id), (crtc_x << 16) | crtc_y);
 266                 I915_WRITE(SKL_PS_WIN_SZ(pipe, scaler_id),
 267                         ((crtc_w + 1) << 16)|(crtc_h + 1));
 268
 269                 I915_WRITE(PLANE_POS(pipe, plane), 0);
 270         } else {
 271                 I915_WRITE(PLANE_POS(pipe, plane), (crtc_y << 16) | crtc_x);
 272         }
 273
 274         I915_WRITE(PLANE_CTL(pipe, plane), plane_ctl);
 275         I915_WRITE(PLANE_SURF(pipe, plane),
 276                    intel_fb_gtt_offset(fb, rotation) + surf_addr);
 277         POSTING_READ(PLANE_SURF(pipe, plane));
 278 }
 279
 280 static void
 281 skl_disable_plane(struct drm_plane *dplane, struct drm_crtc *crtc)
 282 {
 283         struct drm_device *dev = dplane->dev;
 284         struct drm_i915_private *dev_priv = to_i915(dev);
 285         struct intel_plane *intel_plane = to_intel_plane(dplane);
 286         const int pipe = intel_plane->pipe;
 287         const int plane = intel_plane->plane + 1;
 288
 289         I915_WRITE(PLANE_CTL(pipe, plane), 0);
 290
 291         I915_WRITE(PLANE_SURF(pipe, plane), 0);
 292         POSTING_READ(PLANE_SURF(pipe, plane));
 293 }
 294
 295 static void
 296 chv_update_csc(struct intel_plane *intel_plane, uint32_t format)
 297 {
 298         struct drm_i915_private *dev_priv = to_i915(intel_plane->base.dev);
 299         int plane = intel_plane->plane;
 300
 301         /* Seems RGB data bypasses the CSC always */
 302         if (!format_is_yuv(format))
 303                 return;
 304
 305         /*
 306          * BT.601 limited range YCbCr -> full range RGB
 307          *
 308          * |r|   | 6537 4769     0|   |cr  |
 309          * |g| = |-3330 4769 -1605| x |y-64|
 310          * |b|   |    0 4769  8263|   |cb  |
 311          *
 312          * Cb and Cr apparently come in as signed already, so no
 313          * need for any offset. For Y we need to remove the offset.
 314          */
 315         I915_WRITE(SPCSCYGOFF(plane), SPCSC_OOFF(0) | SPCSC_IOFF(-64));
 316         I915_WRITE(SPCSCCBOFF(plane), SPCSC_OOFF(0) | SPCSC_IOFF(0));
 317         I915_WRITE(SPCSCCROFF(plane), SPCSC_OOFF(0) | SPCSC_IOFF(0));
 318
 319         I915_WRITE(SPCSCC01(plane), SPCSC_C1(4769) | SPCSC_C0(6537));
 320         I915_WRITE(SPCSCC23(plane), SPCSC_C1(-3330) | SPCSC_C0(0));
 321         I915_WRITE(SPCSCC45(plane), SPCSC_C1(-1605) | SPCSC_C0(4769));
 322         I915_WRITE(SPCSCC67(plane), SPCSC_C1(4769) | SPCSC_C0(0));
 323         I915_WRITE(SPCSCC8(plane), SPCSC_C0(8263));
 324
 325         I915_WRITE(SPCSCYGICLAMP(plane), SPCSC_IMAX(940) | SPCSC_IMIN(64));
 326         I915_WRITE(SPCSCCBICLAMP(plane), SPCSC_IMAX(448) | SPCSC_IMIN(-448));
 327         I915_WRITE(SPCSCCRICLAMP(plane), SPCSC_IMAX(448) | SPCSC_IMIN(-448));
 328
 329         I915_WRITE(SPCSCYGOCLAMP(plane), SPCSC_OMAX(1023) | SPCSC_OMIN(0));
 330         I915_WRITE(SPCSCCBOCLAMP(plane), SPCSC_OMAX(1023) | SPCSC_OMIN(0));
 331         I915_WRITE(SPCSCCROCLAMP(plane), SPCSC_OMAX(1023) | SPCSC_OMIN(0));
 332 }
 333
 334 static void
 335 vlv_update_plane(struct drm_plane *dplane,
 336                  const struct intel_crtc_state *crtc_state,
 337                  const struct intel_plane_state *plane_state)
 338 {
 339         struct drm_device *dev = dplane->dev;
 340         struct drm_i915_private *dev_priv = to_i915(dev);
 341         struct intel_plane *intel_plane = to_intel_plane(dplane);
 342         struct drm_framebuffer *fb = plane_state->base.fb;
 343         int pipe = intel_plane->pipe;
 344         int plane = intel_plane->plane;
 345         u32 sprctl;
 346         u32 sprsurf_offset, linear_offset;
 347         unsigned int rotation = plane_state->base.rotation;
 348         const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
 349         int crtc_x = plane_state->base.dst.x1;
 350         int crtc_y = plane_state->base.dst.y1;
 351         uint32_t crtc_w = drm_rect_width(&plane_state->base.dst);
 352         uint32_t crtc_h = drm_rect_height(&plane_state->base.dst);
 353         uint32_t x = plane_state->base.src.x1 >> 16;
 354         uint32_t y = plane_state->base.src.y1 >> 16;
 355         uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16;
 356         uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16;
 357
 358         sprctl = SP_ENABLE;
 359
 360         switch (fb->pixel_format) {
 361         case DRM_FORMAT_YUYV:
 362                 sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YUYV;
 363                 break;
 364         case DRM_FORMAT_YVYU:
 365                 sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YVYU;
 366                 break;
 367         case DRM_FORMAT_UYVY:
 368                 sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_UYVY;
 369                 break;
 370         case DRM_FORMAT_VYUY:
 371                 sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_VYUY;
 372                 break;
 373         case DRM_FORMAT_RGB565:
 374                 sprctl |= SP_FORMAT_BGR565;
 375                 break;
 376         case DRM_FORMAT_XRGB8888:
 377                 sprctl |= SP_FORMAT_BGRX8888;
 378                 break;
 379         case DRM_FORMAT_ARGB8888:
 380                 sprctl |= SP_FORMAT_BGRA8888;
 381                 break;
 382         case DRM_FORMAT_XBGR2101010:
 383                 sprctl |= SP_FORMAT_RGBX1010102;
 384                 break;
 385         case DRM_FORMAT_ABGR2101010:
 386                 sprctl |= SP_FORMAT_RGBA1010102;
 387                 break;
 388         case DRM_FORMAT_XBGR8888:
 389                 sprctl |= SP_FORMAT_RGBX8888;
 390                 break;
 391         case DRM_FORMAT_ABGR8888:
 392                 sprctl |= SP_FORMAT_RGBA8888;
 393                 break;
 394         default:
 395                 /*
 396                  * If we get here one of the upper layers failed to filter
 397                  * out the unsupported plane formats
 398                  */
 399                 BUG();
 400                 break;
 401         }
 402
 403         /*
 404          * Enable gamma to match primary/cursor plane behaviour.
 405          * FIXME should be user controllable via propertiesa.
 406          */
 407         sprctl |= SP_GAMMA_ENABLE;
 408
 409         if (fb->modifier == I915_FORMAT_MOD_X_TILED)
 410                 sprctl |= SP_TILED;
 411
 412         if (rotation & DRM_ROTATE_180)
 413                 sprctl |= SP_ROTATE_180;
 414
 415         if (rotation & DRM_REFLECT_X)
 416                 sprctl |= SP_MIRROR;
 417
 418         /* Sizes are 0 based */
 419         src_w--;
 420         src_h--;
 421         crtc_w--;
 422         crtc_h--;
 423
 424         intel_add_fb_offsets(&x, &y, plane_state, 0);
 425         sprsurf_offset = intel_compute_tile_offset(&x, &y, plane_state, 0);
 426
 427         if (rotation & DRM_ROTATE_180) {
 428                 x += src_w;
 429                 y += src_h;
 430         } else if (rotation & DRM_REFLECT_X) {
 431                 x += src_w;
 432         }
 433
 434         linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
 435
 436         if (key->flags) {
 437                 I915_WRITE(SPKEYMINVAL(pipe, plane), key->min_value);
 438                 I915_WRITE(SPKEYMAXVAL(pipe, plane), key->max_value);
 439                 I915_WRITE(SPKEYMSK(pipe, plane), key->channel_mask);
 440         }
 441
 442         if (key->flags & I915_SET_COLORKEY_SOURCE)
 443                 sprctl |= SP_SOURCE_KEY;
 444
 445         if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B)
 446                 chv_update_csc(intel_plane, fb->pixel_format);
 447
 448         I915_WRITE(SPSTRIDE(pipe, plane), fb->pitches[0]);
 449         I915_WRITE(SPPOS(pipe, plane), (crtc_y << 16) | crtc_x);
 450
 451         if (fb->modifier == I915_FORMAT_MOD_X_TILED)
 452                 I915_WRITE(SPTILEOFF(pipe, plane), (y << 16) | x);
 453         else
 454                 I915_WRITE(SPLINOFF(pipe, plane), linear_offset);
 455
 456         I915_WRITE(SPCONSTALPHA(pipe, plane), 0);
 457
 458         I915_WRITE(SPSIZE(pipe, plane), (crtc_h << 16) | crtc_w);
 459         I915_WRITE(SPCNTR(pipe, plane), sprctl);
 460         I915_WRITE(SPSURF(pipe, plane),
 461                    intel_fb_gtt_offset(fb, rotation) + sprsurf_offset);
 462         POSTING_READ(SPSURF(pipe, plane));
 463 }
 464
 465 static void
 466 vlv_disable_plane(struct drm_plane *dplane, struct drm_crtc *crtc)
 467 {
 468         struct drm_device *dev = dplane->dev;
 469         struct drm_i915_private *dev_priv = to_i915(dev);
 470         struct intel_plane *intel_plane = to_intel_plane(dplane);
 471         int pipe = intel_plane->pipe;
 472         int plane = intel_plane->plane;
 473
 474         I915_WRITE(SPCNTR(pipe, plane), 0);
 475
 476         I915_WRITE(SPSURF(pipe, plane), 0);
 477         POSTING_READ(SPSURF(pipe, plane));
 478 }
 479
 480 static void
 481 ivb_update_plane(struct drm_plane *plane,
 482                  const struct intel_crtc_state *crtc_state,
 483                  const struct intel_plane_state *plane_state)
 484 {
 485         struct drm_device *dev = plane->dev;
 486         struct drm_i915_private *dev_priv = to_i915(dev);
 487         struct intel_plane *intel_plane = to_intel_plane(plane);
 488         struct drm_framebuffer *fb = plane_state->base.fb;
 489         enum pipe pipe = intel_plane->pipe;
 490         u32 sprctl, sprscale = 0;
 491         u32 sprsurf_offset, linear_offset;
 492         unsigned int rotation = plane_state->base.rotation;
 493         const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
 494         int crtc_x = plane_state->base.dst.x1;
 495         int crtc_y = plane_state->base.dst.y1;
 496         uint32_t crtc_w = drm_rect_width(&plane_state->base.dst);
 497         uint32_t crtc_h = drm_rect_height(&plane_state->base.dst);
 498         uint32_t x = plane_state->base.src.x1 >> 16;
 499         uint32_t y = plane_state->base.src.y1 >> 16;
 500         uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16;
 501         uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16;
 502
 503         sprctl = SPRITE_ENABLE;
 504
 505         switch (fb->pixel_format) {
 506         case DRM_FORMAT_XBGR8888:
 507                 sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX;
 508                 break;
 509         case DRM_FORMAT_XRGB8888:
 510                 sprctl |= SPRITE_FORMAT_RGBX888;
 511                 break;
 512         case DRM_FORMAT_YUYV:
 513                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YUYV;
 514                 break;
 515         case DRM_FORMAT_YVYU:
 516                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YVYU;
 517                 break;
 518         case DRM_FORMAT_UYVY:
 519                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_UYVY;
 520                 break;
 521         case DRM_FORMAT_VYUY:
 522                 sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_VYUY;
 523                 break;
 524         default:
 525                 BUG();
 526         }
 527
 528         /*
 529          * Enable gamma to match primary/cursor plane behaviour.
 530          * FIXME should be user controllable via propertiesa.
 531          */
 532         sprctl |= SPRITE_GAMMA_ENABLE;
 533
 534         if (fb->modifier == I915_FORMAT_MOD_X_TILED)
 535                 sprctl |= SPRITE_TILED;
 536
 537         if (rotation & DRM_ROTATE_180)
 538                 sprctl |= SPRITE_ROTATE_180;
 539
 540         if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
 541                 sprctl &= ~SPRITE_TRICKLE_FEED_DISABLE;
 542         else
 543                 sprctl |= SPRITE_TRICKLE_FEED_DISABLE;
 544
 545         if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
 546                 sprctl |= SPRITE_PIPE_CSC_ENABLE;
 547
 548         /* Sizes are 0 based */
 549         src_w--;
 550         src_h--;
 551         crtc_w--;
 552         crtc_h--;
 553
 554         if (crtc_w != src_w || crtc_h != src_h)
 555                 sprscale = SPRITE_SCALE_ENABLE | (src_w << 16) | src_h;
 556
 557         intel_add_fb_offsets(&x, &y, plane_state, 0);
 558         sprsurf_offset = intel_compute_tile_offset(&x, &y, plane_state, 0);
 559
 560         /* HSW+ does this automagically in hardware */
 561         if (!IS_HASWELL(dev_priv) && !IS_BROADWELL(dev_priv) &&
 562             rotation & DRM_ROTATE_180) {
 563                 x += src_w;
 564                 y += src_h;
 565         }
 566
 567         linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
 568
 569         if (key->flags) {
 570                 I915_WRITE(SPRKEYVAL(pipe), key->min_value);
 571                 I915_WRITE(SPRKEYMAX(pipe), key->max_value);
 572                 I915_WRITE(SPRKEYMSK(pipe), key->channel_mask);
 573         }
 574
 575         if (key->flags & I915_SET_COLORKEY_DESTINATION)
 576                 sprctl |= SPRITE_DEST_KEY;
 577         else if (key->flags & I915_SET_COLORKEY_SOURCE)
 578                 sprctl |= SPRITE_SOURCE_KEY;
 579
 580         I915_WRITE(SPRSTRIDE(pipe), fb->pitches[0]);
 581         I915_WRITE(SPRPOS(pipe), (crtc_y << 16) | crtc_x);
 582
 583         /* HSW consolidates SPRTILEOFF and SPRLINOFF into a single SPROFFSET
 584          * register */
 585         if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
 586                 I915_WRITE(SPROFFSET(pipe), (y << 16) | x);
 587         else if (fb->modifier == I915_FORMAT_MOD_X_TILED)
 588                 I915_WRITE(SPRTILEOFF(pipe), (y << 16) | x);
 589         else
 590                 I915_WRITE(SPRLINOFF(pipe), linear_offset);
 591
 592         I915_WRITE(SPRSIZE(pipe), (crtc_h << 16) | crtc_w);
 593         if (intel_plane->can_scale)
 594                 I915_WRITE(SPRSCALE(pipe), sprscale);
 595         I915_WRITE(SPRCTL(pipe), sprctl);
 596         I915_WRITE(SPRSURF(pipe),
 597                    intel_fb_gtt_offset(fb, rotation) + sprsurf_offset);
 598         POSTING_READ(SPRSURF(pipe));
 599 }
 600
 601 static void
 602 ivb_disable_plane(struct drm_plane *plane, struct drm_crtc *crtc)
 603 {
 604         struct drm_device *dev = plane->dev;
 605         struct drm_i915_private *dev_priv = to_i915(dev);
 606         struct intel_plane *intel_plane = to_intel_plane(plane);
 607         int pipe = intel_plane->pipe;
 608
 609         I915_WRITE(SPRCTL(pipe), 0);
 610         /* Can't leave the scaler enabled... */
 611         if (intel_plane->can_scale)
 612                 I915_WRITE(SPRSCALE(pipe), 0);
 613
 614         I915_WRITE(SPRSURF(pipe), 0);
 615         POSTING_READ(SPRSURF(pipe));
 616 }
 617
 618 static void
 619 ilk_update_plane(struct drm_plane *plane,
 620                  const struct intel_crtc_state *crtc_state,
 621                  const struct intel_plane_state *plane_state)
 622 {
 623         struct drm_device *dev = plane->dev;
 624         struct drm_i915_private *dev_priv = to_i915(dev);
 625         struct intel_plane *intel_plane = to_intel_plane(plane);
 626         struct drm_framebuffer *fb = plane_state->base.fb;
 627         int pipe = intel_plane->pipe;
 628         u32 dvscntr, dvsscale;
 629         u32 dvssurf_offset, linear_offset;
 630         unsigned int rotation = plane_state->base.rotation;
 631         const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
 632         int crtc_x = plane_state->base.dst.x1;
 633         int crtc_y = plane_state->base.dst.y1;
 634         uint32_t crtc_w = drm_rect_width(&plane_state->base.dst);
 635         uint32_t crtc_h = drm_rect_height(&plane_state->base.dst);
 636         uint32_t x = plane_state->base.src.x1 >> 16;
 637         uint32_t y = plane_state->base.src.y1 >> 16;
 638         uint32_t src_w = drm_rect_width(&plane_state->base.src) >> 16;
 639         uint32_t src_h = drm_rect_height(&plane_state->base.src) >> 16;
 640
 641         dvscntr = DVS_ENABLE;
 642
 643         switch (fb->pixel_format) {
 644         case DRM_FORMAT_XBGR8888:
 645                 dvscntr |= DVS_FORMAT_RGBX888 | DVS_RGB_ORDER_XBGR;
 646                 break;
 647         case DRM_FORMAT_XRGB8888:
 648                 dvscntr |= DVS_FORMAT_RGBX888;
 649                 break;
 650         case DRM_FORMAT_YUYV:
 651                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YUYV;
 652                 break;
 653         case DRM_FORMAT_YVYU:
 654                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YVYU;
 655                 break;
 656         case DRM_FORMAT_UYVY:
 657                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_UYVY;
 658                 break;
 659         case DRM_FORMAT_VYUY:
 660                 dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_VYUY;
 661                 break;
 662         default:
 663                 BUG();
 664         }
 665
 666         /*
 667          * Enable gamma to match primary/cursor plane behaviour.
 668          * FIXME should be user controllable via propertiesa.
 669          */
 670         dvscntr |= DVS_GAMMA_ENABLE;
 671
 672         if (fb->modifier == I915_FORMAT_MOD_X_TILED)
 673                 dvscntr |= DVS_TILED;
 674
 675         if (rotation & DRM_ROTATE_180)
 676                 dvscntr |= DVS_ROTATE_180;
 677
 678         if (IS_GEN6(dev_priv))
 679                 dvscntr |= DVS_TRICKLE_FEED_DISABLE; /* must disable */
 680
 681         /* Sizes are 0 based */
 682         src_w--;
 683         src_h--;
 684         crtc_w--;
 685         crtc_h--;
 686
 687         dvsscale = 0;
 688         if (crtc_w != src_w || crtc_h != src_h)
 689                 dvsscale = DVS_SCALE_ENABLE | (src_w << 16) | src_h;
 690
 691         intel_add_fb_offsets(&x, &y, plane_state, 0);
 692         dvssurf_offset = intel_compute_tile_offset(&x, &y, plane_state, 0);
 693
 694         if (rotation & DRM_ROTATE_180) {
 695                 x += src_w;
 696                 y += src_h;
 697         }
 698
 699         linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
 700
 701         if (key->flags) {
 702                 I915_WRITE(DVSKEYVAL(pipe), key->min_value);
 703                 I915_WRITE(DVSKEYMAX(pipe), key->max_value);
 704                 I915_WRITE(DVSKEYMSK(pipe), key->channel_mask);
 705         }
 706
 707         if (key->flags & I915_SET_COLORKEY_DESTINATION)
 708                 dvscntr |= DVS_DEST_KEY;
 709         else if (key->flags & I915_SET_COLORKEY_SOURCE)
 710                 dvscntr |= DVS_SOURCE_KEY;
 711
 712         I915_WRITE(DVSSTRIDE(pipe), fb->pitches[0]);
 713         I915_WRITE(DVSPOS(pipe), (crtc_y << 16) | crtc_x);
 714
 715         if (fb->modifier == I915_FORMAT_MOD_X_TILED)
 716                 I915_WRITE(DVSTILEOFF(pipe), (y << 16) | x);
 717         else
 718                 I915_WRITE(DVSLINOFF(pipe), linear_offset);
 719
 720         I915_WRITE(DVSSIZE(pipe), (crtc_h << 16) | crtc_w);
 721         I915_WRITE(DVSSCALE(pipe), dvsscale);
 722         I915_WRITE(DVSCNTR(pipe), dvscntr);
 723         I915_WRITE(DVSSURF(pipe),
 724                    intel_fb_gtt_offset(fb, rotation) + dvssurf_offset);
 725         POSTING_READ(DVSSURF(pipe));
 726 }
 727
 728 static void
 729 ilk_disable_plane(struct drm_plane *plane, struct drm_crtc *crtc)
 730 {
 731         struct drm_device *dev = plane->dev;
 732         struct drm_i915_private *dev_priv = to_i915(dev);
 733         struct intel_plane *intel_plane = to_intel_plane(plane);
 734         int pipe = intel_plane->pipe;
 735
 736         I915_WRITE(DVSCNTR(pipe), 0);
 737         /* Disable the scaler */
 738         I915_WRITE(DVSSCALE(pipe), 0);
 739
 740         I915_WRITE(DVSSURF(pipe), 0);
 741         POSTING_READ(DVSSURF(pipe));
 742 }
 743
 744 static int
 745 intel_check_sprite_plane(struct drm_plane *plane,
 746                          struct intel_crtc_state *crtc_state,
 747                          struct intel_plane_state *state)
 748 {
 749         struct drm_i915_private *dev_priv = to_i915(plane->dev);
 750         struct drm_crtc *crtc = state->base.crtc;
 751         struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 752         struct intel_plane *intel_plane = to_intel_plane(plane);
 753         struct drm_framebuffer *fb = state->base.fb;
 754         int crtc_x, crtc_y;
 755         unsigned int crtc_w, crtc_h;
 756         uint32_t src_x, src_y, src_w, src_h;
 757         struct drm_rect *src = &state->base.src;
 758         struct drm_rect *dst = &state->base.dst;
 759         const struct drm_rect *clip = &state->clip;
 760         int hscale, vscale;
 761         int max_scale, min_scale;
 762         bool can_scale;
 763         int ret;
 764
 765         *src = drm_plane_state_src(&state->base);
 766         *dst = drm_plane_state_dest(&state->base);
 767
 768         if (!fb) {
 769                 state->base.visible = false;
 770                 return 0;
 771         }
 772
 773         /* Don't modify another pipe's plane */
 774         if (intel_plane->pipe != intel_crtc->pipe) {
 775                 DRM_DEBUG_KMS("Wrong plane <-> crtc mapping\n");
 776                 return -EINVAL;
 777         }
 778
 779         /* FIXME check all gen limits */
 780         if (fb->width < 3 || fb->height < 3 || fb->pitches[0] > 16384) {
 781                 DRM_DEBUG_KMS("Unsuitable framebuffer for plane\n");
 782                 return -EINVAL;
 783         }
 784
 785         /* setup can_scale, min_scale, max_scale */
 786         if (INTEL_GEN(dev_priv) >= 9) {
 787                 /* use scaler when colorkey is not required */
 788                 if (state->ckey.flags == I915_SET_COLORKEY_NONE) {
 789                         can_scale = 1;
 790                         min_scale = 1;
 791                         max_scale = skl_max_scale(intel_crtc, crtc_state);
 792                 } else {
 793                         can_scale = 0;
 794                         min_scale = DRM_PLANE_HELPER_NO_SCALING;
 795                         max_scale = DRM_PLANE_HELPER_NO_SCALING;
 796                 }
 797         } else {
 798                 can_scale = intel_plane->can_scale;
 799                 max_scale = intel_plane->max_downscale << 16;
 800                 min_scale = intel_plane->can_scale ? 1 : (1 << 16);
 801         }
 802
 803         /*
 804          * FIXME the following code does a bunch of fuzzy adjustments to the
 805          * coordinates and sizes. We probably need some way to decide whether
 806          * more strict checking should be done instead.
 807          */
 808         drm_rect_rotate(src, fb->width << 16, fb->height << 16,
 809                         state->base.rotation);
 810
 811         hscale = drm_rect_calc_hscale_relaxed(src, dst, min_scale, max_scale);
 812         BUG_ON(hscale < 0);
 813
 814         vscale = drm_rect_calc_vscale_relaxed(src, dst, min_scale, max_scale);
 815         BUG_ON(vscale < 0);
 816
 817         state->base.visible = drm_rect_clip_scaled(src, dst, clip, hscale, vscale);
 818
 819         crtc_x = dst->x1;
 820         crtc_y = dst->y1;
 821         crtc_w = drm_rect_width(dst);
 822         crtc_h = drm_rect_height(dst);
 823
 824         if (state->base.visible) {
 825                 /* check again in case clipping clamped the results */
 826                 hscale = drm_rect_calc_hscale(src, dst, min_scale, max_scale);
 827                 if (hscale < 0) {
 828                         DRM_DEBUG_KMS("Horizontal scaling factor out of limits\n");
 829                         drm_rect_debug_print("src: ", src, true);
 830                         drm_rect_debug_print("dst: ", dst, false);
 831
 832                         return hscale;
 833                 }
 834
 835                 vscale = drm_rect_calc_vscale(src, dst, min_scale, max_scale);
 836                 if (vscale < 0) {
 837                         DRM_DEBUG_KMS("Vertical scaling factor out of limits\n");
 838                         drm_rect_debug_print("src: ", src, true);
 839                         drm_rect_debug_print("dst: ", dst, false);
 840
 841                         return vscale;
 842                 }
 843
 844                 /* Make the source viewport size an exact multiple of the scaling factors. */
 845                 drm_rect_adjust_size(src,
 846                                      drm_rect_width(dst) * hscale - drm_rect_width(src),
 847                                      drm_rect_height(dst) * vscale - drm_rect_height(src));
 848
 849                 drm_rect_rotate_inv(src, fb->width << 16, fb->height << 16,
 850                                     state->base.rotation);
 851
 852                 /* sanity check to make sure the src viewport wasn't enlarged */
 853                 WARN_ON(src->x1 < (int) state->base.src_x ||
 854                         src->y1 < (int) state->base.src_y ||
 855                         src->x2 > (int) state->base.src_x + state->base.src_w ||
 856                         src->y2 > (int) state->base.src_y + state->base.src_h);
 857
 858                 /*
 859                  * Hardware doesn't handle subpixel coordinates.
 860                  * Adjust to (macro)pixel boundary, but be careful not to
 861                  * increase the source viewport size, because that could
 862                  * push the downscaling factor out of bounds.
 863                  */
 864                 src_x = src->x1 >> 16;
 865                 src_w = drm_rect_width(src) >> 16;
 866                 src_y = src->y1 >> 16;
 867                 src_h = drm_rect_height(src) >> 16;
 868
 869                 if (format_is_yuv(fb->pixel_format)) {
 870                         src_x &= ~1;
 871                         src_w &= ~1;
 872
 873                         /*
 874                          * Must keep src and dst the
 875                          * same if we can't scale.
 876                          */
 877                         if (!can_scale)
 878                                 crtc_w &= ~1;
 879
 880                         if (crtc_w == 0)
 881                                 state->base.visible = false;
 882                 }
 883         }
 884
 885         /* Check size restrictions when scaling */
 886         if (state->base.visible && (src_w != crtc_w || src_h != crtc_h)) {
 887                 unsigned int width_bytes;
 888                 int cpp = drm_format_plane_cpp(fb->pixel_format, 0);
 889
 890                 WARN_ON(!can_scale);
 891
 892                 /* FIXME interlacing min height is 6 */
 893
 894                 if (crtc_w < 3 || crtc_h < 3)
 895                         state->base.visible = false;
 896
 897                 if (src_w < 3 || src_h < 3)
 898                         state->base.visible = false;
 899
 900                 width_bytes = ((src_x * cpp) & 63) + src_w * cpp;
 901
 902                 if (INTEL_GEN(dev_priv) < 9 && (src_w > 2048 || src_h > 2048 ||
 903                     width_bytes > 4096 || fb->pitches[0] > 4096)) {
 904                         DRM_DEBUG_KMS("Source dimensions exceed hardware limits\n");
 905                         return -EINVAL;
 906                 }
 907         }
 908
 909         if (state->base.visible) {
 910                 src->x1 = src_x << 16;
 911                 src->x2 = (src_x + src_w) << 16;
 912                 src->y1 = src_y << 16;
 913                 src->y2 = (src_y + src_h) << 16;
 914         }
 915
 916         dst->x1 = crtc_x;
 917         dst->x2 = crtc_x + crtc_w;
 918         dst->y1 = crtc_y;
 919         dst->y2 = crtc_y + crtc_h;
 920
 921         if (INTEL_GEN(dev_priv) >= 9) {
 922                 ret = skl_check_plane_surface(state);
 923                 if (ret)
 924                         return ret;
 925         }
 926
 927         return 0;
 928 }
 929
 930 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
 931                               struct drm_file *file_priv)
 932 {
 933         struct drm_i915_private *dev_priv = to_i915(dev);
 934         struct drm_intel_sprite_colorkey *set = data;
 935         struct drm_plane *plane;
 936         struct drm_plane_state *plane_state;
 937         struct drm_atomic_state *state;
 938         struct drm_modeset_acquire_ctx ctx;
 939         int ret = 0;
 940
 941         /* Make sure we don't try to enable both src & dest simultaneously */
 942         if ((set->flags & (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE)) == (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE))
 943                 return -EINVAL;
 944
 945         if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
 946             set->flags & I915_SET_COLORKEY_DESTINATION)
 947                 return -EINVAL;
 948
 949         plane = drm_plane_find(dev, set->plane_id);
 950         if (!plane || plane->type != DRM_PLANE_TYPE_OVERLAY)
 951                 return -ENOENT;
 952
 953         drm_modeset_acquire_init(&ctx, 0);
 954
 955         state = drm_atomic_state_alloc(plane->dev);
 956         if (!state) {
 957                 ret = -ENOMEM;
 958                 goto out;
 959         }
 960         state->acquire_ctx = &ctx;
 961
 962         while (1) {
 963                 plane_state = drm_atomic_get_plane_state(state, plane);
 964                 ret = PTR_ERR_OR_ZERO(plane_state);
 965                 if (!ret) {
 966                         to_intel_plane_state(plane_state)->ckey = *set;
 967                         ret = drm_atomic_commit(state);
 968                 }
 969
 970                 if (ret != -EDEADLK)
 971                         break;
 972
 973                 drm_atomic_state_clear(state);
 974                 drm_modeset_backoff(&ctx);
 975         }
 976
 977         drm_atomic_state_put(state);
 978 out:
 979         drm_modeset_drop_locks(&ctx);
 980         drm_modeset_acquire_fini(&ctx);
 981         return ret;
 982 }
 983
 984 static const uint32_t ilk_plane_formats[] = {
 985         DRM_FORMAT_XRGB8888,
 986         DRM_FORMAT_YUYV,
 987         DRM_FORMAT_YVYU,
 988         DRM_FORMAT_UYVY,
 989         DRM_FORMAT_VYUY,
 990 };
 991
 992 static const uint32_t snb_plane_formats[] = {
 993         DRM_FORMAT_XBGR8888,
 994         DRM_FORMAT_XRGB8888,
 995         DRM_FORMAT_YUYV,
 996         DRM_FORMAT_YVYU,
 997         DRM_FORMAT_UYVY,
 998         DRM_FORMAT_VYUY,
 999 };
1000
1001 static const uint32_t vlv_plane_formats[] = {
1002         DRM_FORMAT_RGB565,
1003         DRM_FORMAT_ABGR8888,
1004         DRM_FORMAT_ARGB8888,
1005         DRM_FORMAT_XBGR8888,
1006         DRM_FORMAT_XRGB8888,
1007         DRM_FORMAT_XBGR2101010,
1008         DRM_FORMAT_ABGR2101010,
1009         DRM_FORMAT_YUYV,
1010         DRM_FORMAT_YVYU,
1011         DRM_FORMAT_UYVY,
1012         DRM_FORMAT_VYUY,
1013 };
1014
1015 static uint32_t skl_plane_formats[] = {
1016         DRM_FORMAT_RGB565,
1017         DRM_FORMAT_ABGR8888,
1018         DRM_FORMAT_ARGB8888,
1019         DRM_FORMAT_XBGR8888,
1020         DRM_FORMAT_XRGB8888,
1021         DRM_FORMAT_YUYV,
1022         DRM_FORMAT_YVYU,
1023         DRM_FORMAT_UYVY,
1024         DRM_FORMAT_VYUY,
1025 };
1026
1027 struct intel_plane *
1028 intel_sprite_plane_create(struct drm_i915_private *dev_priv,
1029                           enum pipe pipe, int plane)
1030 {
1031         struct intel_plane *intel_plane = NULL;
1032         struct intel_plane_state *state = NULL;
1033         unsigned long possible_crtcs;
1034         const uint32_t *plane_formats;
1035         unsigned int supported_rotations;
1036         int num_plane_formats;
1037         int ret;
1038
1039         intel_plane = kzalloc(sizeof(*intel_plane), GFP_KERNEL);
1040         if (!intel_plane) {
1041                 ret = -ENOMEM;
1042                 goto fail;
1043         }
1044
1045         state = intel_create_plane_state(&intel_plane->base);
1046         if (!state) {
1047                 ret = -ENOMEM;
1048                 goto fail;
1049         }
1050         intel_plane->base.state = &state->base;
1051
1052         if (INTEL_GEN(dev_priv) >= 9) {
1053                 intel_plane->can_scale = true;
1054                 state->scaler_id = -1;
1055
1056                 intel_plane->update_plane = skl_update_plane;
1057                 intel_plane->disable_plane = skl_disable_plane;
1058
1059                 plane_formats = skl_plane_formats;
1060                 num_plane_formats = ARRAY_SIZE(skl_plane_formats);
1061         } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
1062                 intel_plane->can_scale = false;
1063                 intel_plane->max_downscale = 1;
1064
1065                 intel_plane->update_plane = vlv_update_plane;
1066                 intel_plane->disable_plane = vlv_disable_plane;
1067
1068                 plane_formats = vlv_plane_formats;
1069                 num_plane_formats = ARRAY_SIZE(vlv_plane_formats);
1070         } else if (INTEL_GEN(dev_priv) >= 7) {
1071                 if (IS_IVYBRIDGE(dev_priv)) {
1072                         intel_plane->can_scale = true;
1073                         intel_plane->max_downscale = 2;
1074                 } else {
1075                         intel_plane->can_scale = false;
1076                         intel_plane->max_downscale = 1;
1077                 }
1078
1079                 intel_plane->update_plane = ivb_update_plane;
1080                 intel_plane->disable_plane = ivb_disable_plane;
1081
1082                 plane_formats = snb_plane_formats;
1083                 num_plane_formats = ARRAY_SIZE(snb_plane_formats);
1084         } else {
1085                 intel_plane->can_scale = true;
1086                 intel_plane->max_downscale = 16;
1087
1088                 intel_plane->update_plane = ilk_update_plane;
1089                 intel_plane->disable_plane = ilk_disable_plane;
1090
1091                 if (IS_GEN6(dev_priv)) {
1092                         plane_formats = snb_plane_formats;
1093                         num_plane_formats = ARRAY_SIZE(snb_plane_formats);
1094                 } else {
1095                         plane_formats = ilk_plane_formats;
1096                         num_plane_formats = ARRAY_SIZE(ilk_plane_formats);
1097                 }
1098         }
1099
1100         if (INTEL_GEN(dev_priv) >= 9) {
1101                 supported_rotations =
1102                         DRM_ROTATE_0 | DRM_ROTATE_90 |
1103                         DRM_ROTATE_180 | DRM_ROTATE_270;
1104         } else if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B) {
1105                 supported_rotations =
1106                         DRM_ROTATE_0 | DRM_ROTATE_180 |
1107                         DRM_REFLECT_X;
1108         } else {
1109                 supported_rotations =
1110                         DRM_ROTATE_0 | DRM_ROTATE_180;
1111         }
1112
1113         intel_plane->pipe = pipe;
1114         intel_plane->plane = plane;
1115         intel_plane->frontbuffer_bit = INTEL_FRONTBUFFER_SPRITE(pipe, plane);
1116         intel_plane->check_plane = intel_check_sprite_plane;
1117
1118         possible_crtcs = (1 << pipe);
1119
1120         if (INTEL_GEN(dev_priv) >= 9)
1121                 ret = drm_universal_plane_init(&dev_priv->drm, &intel_plane->base,
1122                                                possible_crtcs, &intel_plane_funcs,
1123                                                plane_formats, num_plane_formats,
1124                                                DRM_PLANE_TYPE_OVERLAY,
1125                                                "plane %d%c", plane + 2, pipe_name(pipe));
1126         else
1127                 ret = drm_universal_plane_init(&dev_priv->drm, &intel_plane->base,
1128                                                possible_crtcs, &intel_plane_funcs,
1129                                                plane_formats, num_plane_formats,
1130                                                DRM_PLANE_TYPE_OVERLAY,
1131                                                "sprite %c", sprite_name(pipe, plane));
1132         if (ret)
1133                 goto fail;
1134
1135         drm_plane_create_rotation_property(&intel_plane->base,
1136                                            DRM_ROTATE_0,
1137                                            supported_rotations);
1138
1139         drm_plane_helper_add(&intel_plane->base, &intel_plane_helper_funcs);
1140
1141         return intel_plane;
1142
1143 fail:
1144         kfree(state);
1145         kfree(intel_plane);
1146
1147         return ERR_PTR(ret);
1148 }