LXR linux/drivers/gpu/drm/nouveau/dispnv50/head507d.c

   1/*
   2 * Copyright 2018 Red Hat Inc.
   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 shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 */
  22#include "head.h"
  23#include "core.h"
  24
  25#include <nvif/push507c.h>
  26
  27#include <nvhw/class/cl507d.h>
  28
  29int
  30head507d_procamp(struct nv50_head *head, struct nv50_head_atom *asyh)
  31{
  32        struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
  33        const int i = head->base.index;
  34        int ret;
  35
  36        if ((ret = PUSH_WAIT(push, 2)))
  37                return ret;
  38
  39        PUSH_MTHD(push, NV507D, HEAD_SET_PROCAMP(i),
  40                  NVDEF(NV507D, HEAD_SET_PROCAMP, COLOR_SPACE, RGB) |
  41                  NVDEF(NV507D, HEAD_SET_PROCAMP, CHROMA_LPF, AUTO) |
  42                  NVVAL(NV507D, HEAD_SET_PROCAMP, SAT_COS, asyh->procamp.sat.cos) |
  43                  NVVAL(NV507D, HEAD_SET_PROCAMP, SAT_SINE, asyh->procamp.sat.sin) |
  44                  NVDEF(NV507D, HEAD_SET_PROCAMP, TRANSITION, HARD));
  45        return 0;
  46}
  47
  48int
  49head507d_dither(struct nv50_head *head, struct nv50_head_atom *asyh)
  50{
  51        struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
  52        const int i = head->base.index;
  53        int ret;
  54
  55        if ((ret = PUSH_WAIT(push, 2)))
  56                return ret;
  57
  58        PUSH_MTHD(push, NV507D, HEAD_SET_DITHER_CONTROL(i),
  59                  NVVAL(NV507D, HEAD_SET_DITHER_CONTROL, ENABLE, asyh->dither.enable) |
  60                  NVVAL(NV507D, HEAD_SET_DITHER_CONTROL, BITS, asyh->dither.bits) |
  61                  NVVAL(NV507D, HEAD_SET_DITHER_CONTROL, MODE, asyh->dither.mode) |
  62                  NVVAL(NV507D, HEAD_SET_DITHER_CONTROL, PHASE, 0));
  63        return 0;
  64}
  65
  66int
  67head507d_ovly(struct nv50_head *head, struct nv50_head_atom *asyh)
  68{
  69        struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
  70        const int i = head->base.index;
  71        u32 bounds = 0;
  72        int ret;
  73
  74        if (asyh->ovly.cpp) {
  75                switch (asyh->ovly.cpp) {
  76                case 4: bounds |= NVDEF(NV507D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, PIXEL_DEPTH, BPP_32); break;
  77                case 2: bounds |= NVDEF(NV507D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, PIXEL_DEPTH, BPP_16); break;
  78                default:
  79                        WARN_ON(1);
  80                        break;
  81                }
  82                bounds |= NVDEF(NV507D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, USABLE, TRUE);
  83        } else {
  84                bounds |= NVDEF(NV507D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, PIXEL_DEPTH, BPP_16);
  85        }
  86
  87        if ((ret = PUSH_WAIT(push, 2)))
  88                return ret;
  89
  90        PUSH_MTHD(push, NV507D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS(i), bounds);
  91        return 0;
  92}
  93
  94int
  95head507d_base(struct nv50_head *head, struct nv50_head_atom *asyh)
  96{
  97        struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
  98        const int i = head->base.index;
  99        u32 bounds = 0;
 100        int ret;
 101
 102        if (asyh->base.cpp) {
 103                switch (asyh->base.cpp) {
 104                case 8: bounds |= NVDEF(NV507D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, PIXEL_DEPTH, BPP_64); break;
 105                case 4: bounds |= NVDEF(NV507D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, PIXEL_DEPTH, BPP_32); break;
 106                case 2: bounds |= NVDEF(NV507D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, PIXEL_DEPTH, BPP_16); break;
 107                case 1: bounds |= NVDEF(NV507D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, PIXEL_DEPTH, BPP_8); break;
 108                default:
 109                        WARN_ON(1);
 110                        break;
 111                }
 112                bounds |= NVDEF(NV507D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS, USABLE, TRUE);
 113        }
 114
 115        if ((ret = PUSH_WAIT(push, 2)))
 116                return ret;
 117
 118        PUSH_MTHD(push, NV507D, HEAD_SET_BASE_CHANNEL_USAGE_BOUNDS(i), bounds);
 119        return 0;
 120}
 121
 122static int
 123head507d_curs_clr(struct nv50_head *head)
 124{
 125        struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
 126        const int i = head->base.index;
 127        int ret;
 128
 129        if ((ret = PUSH_WAIT(push, 2)))
 130                return ret;
 131
 132        PUSH_MTHD(push, NV507D, HEAD_SET_CONTROL_CURSOR(i),
 133                  NVDEF(NV507D, HEAD_SET_CONTROL_CURSOR, ENABLE, DISABLE) |
 134                  NVDEF(NV507D, HEAD_SET_CONTROL_CURSOR, FORMAT, A8R8G8B8) |
 135                  NVDEF(NV507D, HEAD_SET_CONTROL_CURSOR, SIZE, W64_H64));
 136        return 0;
 137}
 138
 139static int
 140head507d_curs_set(struct nv50_head *head, struct nv50_head_atom *asyh)
 141{
 142        struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
 143        const int i = head->base.index;
 144        int ret;
 145
 146        if ((ret = PUSH_WAIT(push, 3)))
 147                return ret;
 148
 149        PUSH_MTHD(push, NV507D, HEAD_SET_CONTROL_CURSOR(i),
 150                  NVDEF(NV507D, HEAD_SET_CONTROL_CURSOR, ENABLE, ENABLE) |
 151                  NVVAL(NV507D, HEAD_SET_CONTROL_CURSOR, FORMAT, asyh->curs.format) |
 152                  NVVAL(NV507D, HEAD_SET_CONTROL_CURSOR, SIZE, asyh->curs.layout) |
 153                  NVVAL(NV507D, HEAD_SET_CONTROL_CURSOR, HOT_SPOT_X, 0) |
 154                  NVVAL(NV507D, HEAD_SET_CONTROL_CURSOR, HOT_SPOT_Y, 0) |
 155                  NVDEF(NV507D, HEAD_SET_CONTROL_CURSOR, COMPOSITION, ALPHA_BLEND) |
 156                  NVDEF(NV507D, HEAD_SET_CONTROL_CURSOR, SUB_OWNER, NONE),
 157
 158                                HEAD_SET_OFFSET_CURSOR(i), asyh->curs.offset >> 8);
 159        return 0;
 160}
 161
 162int
 163head507d_curs_format(struct nv50_head *head, struct nv50_wndw_atom *asyw,
 164                     struct nv50_head_atom *asyh)
 165{
 166        switch (asyw->image.format) {
 167        case 0xcf: asyh->curs.format = NV507D_HEAD_SET_CONTROL_CURSOR_FORMAT_A8R8G8B8; break;
 168        default:
 169                WARN_ON(1);
 170                return -EINVAL;
 171        }
 172        return 0;
 173}
 174
 175int
 176head507d_curs_layout(struct nv50_head *head, struct nv50_wndw_atom *asyw,
 177                     struct nv50_head_atom *asyh)
 178{
 179        switch (asyw->image.w) {
 180        case 32: asyh->curs.layout = NV507D_HEAD_SET_CONTROL_CURSOR_SIZE_W32_H32; break;
 181        case 64: asyh->curs.layout = NV507D_HEAD_SET_CONTROL_CURSOR_SIZE_W64_H64; break;
 182        default:
 183                return -EINVAL;
 184        }
 185        return 0;
 186}
 187
 188int
 189head507d_core_clr(struct nv50_head *head)
 190{
 191        struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
 192        const int i = head->base.index;
 193        int ret;
 194
 195        if ((ret = PUSH_WAIT(push, 2)))
 196                return ret;
 197
 198        PUSH_MTHD(push, NV507D, HEAD_SET_CONTEXT_DMA_ISO(i), 0x00000000);
 199        return 0;
 200}
 201
 202static int
 203head507d_core_set(struct nv50_head *head, struct nv50_head_atom *asyh)
 204{
 205        struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
 206        const int i = head->base.index;
 207        int ret;
 208
 209        if ((ret = PUSH_WAIT(push, 9)))
 210                return ret;
 211
 212        PUSH_MTHD(push, NV507D, HEAD_SET_OFFSET(i, 0),
 213                  NVVAL(NV507D, HEAD_SET_OFFSET, ORIGIN, asyh->core.offset >> 8));
 214
 215        PUSH_MTHD(push, NV507D, HEAD_SET_SIZE(i),
 216                  NVVAL(NV507D, HEAD_SET_SIZE, WIDTH, asyh->core.w) |
 217                  NVVAL(NV507D, HEAD_SET_SIZE, HEIGHT, asyh->core.h),
 218
 219                                HEAD_SET_STORAGE(i),
 220                  NVVAL(NV507D, HEAD_SET_STORAGE, BLOCK_HEIGHT, asyh->core.blockh) |
 221                  NVVAL(NV507D, HEAD_SET_STORAGE, PITCH, asyh->core.pitch >> 8) |
 222                  NVVAL(NV507D, HEAD_SET_STORAGE, PITCH, asyh->core.blocks) |
 223                  NVVAL(NV507D, HEAD_SET_STORAGE, MEMORY_LAYOUT, asyh->core.layout),
 224
 225                                HEAD_SET_PARAMS(i),
 226                  NVVAL(NV507D, HEAD_SET_PARAMS, FORMAT, asyh->core.format) |
 227                  NVVAL(NV507D, HEAD_SET_PARAMS, KIND, asyh->core.kind) |
 228                  NVDEF(NV507D, HEAD_SET_PARAMS, PART_STRIDE, PARTSTRIDE_256),
 229
 230                                HEAD_SET_CONTEXT_DMA_ISO(i),
 231                  NVVAL(NV507D, HEAD_SET_CONTEXT_DMA_ISO, HANDLE, asyh->core.handle));
 232
 233        PUSH_MTHD(push, NV507D, HEAD_SET_VIEWPORT_POINT_IN(i, 0),
 234                  NVVAL(NV507D, HEAD_SET_VIEWPORT_POINT_IN, X, asyh->core.x) |
 235                  NVVAL(NV507D, HEAD_SET_VIEWPORT_POINT_IN, Y, asyh->core.y));
 236
 237        /* EVO will complain with INVALID_STATE if we have an
 238         * active cursor and (re)specify HeadSetContextDmaIso
 239         * without also updating HeadSetOffsetCursor.
 240         */
 241        asyh->set.curs = asyh->curs.visible;
 242        asyh->set.olut = asyh->olut.handle != 0;
 243        return 0;
 244}
 245
 246void
 247head507d_core_calc(struct nv50_head *head, struct nv50_head_atom *asyh)
 248{
 249        struct nv50_disp *disp = nv50_disp(head->base.base.dev);
 250        if ((asyh->core.visible = (asyh->base.cpp != 0))) {
 251                asyh->core.x = asyh->base.x;
 252                asyh->core.y = asyh->base.y;
 253                asyh->core.w = asyh->base.w;
 254                asyh->core.h = asyh->base.h;
 255        } else
 256        if ((asyh->core.visible = (asyh->ovly.cpp != 0)) ||
 257            (asyh->core.visible = asyh->curs.visible)) {
 258                /*XXX: We need to either find some way of having the
 259                 *     primary base layer appear black, while still
 260                 *     being able to display the other layers, or we
 261                 *     need to allocate a dummy black surface here.
 262                 */
 263                asyh->core.x = 0;
 264                asyh->core.y = 0;
 265                asyh->core.w = asyh->state.mode.hdisplay;
 266                asyh->core.h = asyh->state.mode.vdisplay;
 267        }
 268        asyh->core.handle = disp->core->chan.vram.handle;
 269        asyh->core.offset = 0;
 270        asyh->core.format = NV507D_HEAD_SET_PARAMS_FORMAT_A8R8G8B8;
 271        asyh->core.kind = NV507D_HEAD_SET_PARAMS_KIND_KIND_PITCH;
 272        asyh->core.layout = NV507D_HEAD_SET_STORAGE_MEMORY_LAYOUT_PITCH;
 273        asyh->core.blockh = NV507D_HEAD_SET_STORAGE_BLOCK_HEIGHT_ONE_GOB;
 274        asyh->core.blocks = 0;
 275        asyh->core.pitch = ALIGN(asyh->core.w, 64) * 4;
 276}
 277
 278static int
 279head507d_olut_clr(struct nv50_head *head)
 280{
 281        struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
 282        const int i = head->base.index;
 283        int ret;
 284
 285        if ((ret = PUSH_WAIT(push, 2)))
 286                return ret;
 287
 288        PUSH_MTHD(push, NV507D, HEAD_SET_BASE_LUT_LO(i),
 289                  NVDEF(NV507D, HEAD_SET_BASE_LUT_LO, ENABLE, DISABLE));
 290        return 0;
 291}
 292
 293static int
 294head507d_olut_set(struct nv50_head *head, struct nv50_head_atom *asyh)
 295{
 296        struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
 297        const int i = head->base.index;
 298        int ret;
 299
 300        if ((ret = PUSH_WAIT(push, 3)))
 301                return ret;
 302
 303        PUSH_MTHD(push, NV507D, HEAD_SET_BASE_LUT_LO(i),
 304                  NVDEF(NV507D, HEAD_SET_BASE_LUT_LO, ENABLE, ENABLE) |
 305                  NVVAL(NV507D, HEAD_SET_BASE_LUT_LO, MODE, asyh->olut.mode) |
 306                  NVVAL(NV507D, HEAD_SET_BASE_LUT_LO, ORIGIN, 0),
 307
 308                                HEAD_SET_BASE_LUT_HI(i),
 309                  NVVAL(NV507D, HEAD_SET_BASE_LUT_HI, ORIGIN, asyh->olut.offset >> 8));
 310        return 0;
 311}
 312
 313static void
 314head507d_olut_load(struct drm_color_lut *in, int size, void __iomem *mem)
 315{
 316        for (; size--; in++, mem += 8) {
 317                writew(drm_color_lut_extract(in->  red, 11) << 3, mem + 0);
 318                writew(drm_color_lut_extract(in->green, 11) << 3, mem + 2);
 319                writew(drm_color_lut_extract(in-> blue, 11) << 3, mem + 4);
 320        }
 321
 322        /* INTERPOLATE modes require a "next" entry to interpolate with,
 323         * so we replicate the last entry to deal with this for now.
 324         */
 325        writew(readw(mem - 8), mem + 0);
 326        writew(readw(mem - 6), mem + 2);
 327        writew(readw(mem - 4), mem + 4);
 328}
 329
 330bool
 331head507d_olut(struct nv50_head *head, struct nv50_head_atom *asyh, int size)
 332{
 333        if (size != 256)
 334                return false;
 335
 336        if (asyh->base.cpp == 1)
 337                asyh->olut.mode = NV507D_HEAD_SET_BASE_LUT_LO_MODE_LORES;
 338        else
 339                asyh->olut.mode = NV507D_HEAD_SET_BASE_LUT_LO_MODE_HIRES;
 340
 341        asyh->olut.load = head507d_olut_load;
 342        return true;
 343}
 344
 345int
 346head507d_mode(struct nv50_head *head, struct nv50_head_atom *asyh)
 347{
 348        struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
 349        struct nv50_head_mode *m = &asyh->mode;
 350        const int i = head->base.index;
 351        int ret;
 352
 353        if ((ret = PUSH_WAIT(push, 13)))
 354                return ret;
 355
 356        PUSH_MTHD(push, NV507D, HEAD_SET_PIXEL_CLOCK(i),
 357                  NVVAL(NV507D, HEAD_SET_PIXEL_CLOCK, FREQUENCY, m->clock) |
 358                  NVDEF(NV507D, HEAD_SET_PIXEL_CLOCK, MODE, CLK_CUSTOM) |
 359                  NVDEF(NV507D, HEAD_SET_PIXEL_CLOCK, ADJ1000DIV1001, FALSE) |
 360                  NVDEF(NV507D, HEAD_SET_PIXEL_CLOCK, NOT_DRIVER, FALSE),
 361
 362                                HEAD_SET_CONTROL(i),
 363                  NVVAL(NV507D, HEAD_SET_CONTROL, STRUCTURE, m->interlace));
 364
 365        PUSH_MTHD(push, NV507D, HEAD_SET_OVERSCAN_COLOR(i),
 366                  NVVAL(NV507D, HEAD_SET_OVERSCAN_COLOR, RED, 0) |
 367                  NVVAL(NV507D, HEAD_SET_OVERSCAN_COLOR, GRN, 0) |
 368                  NVVAL(NV507D, HEAD_SET_OVERSCAN_COLOR, BLU, 0),
 369
 370                                HEAD_SET_RASTER_SIZE(i),
 371                  NVVAL(NV507D, HEAD_SET_RASTER_SIZE, WIDTH, m->h.active) |
 372                  NVVAL(NV507D, HEAD_SET_RASTER_SIZE, HEIGHT, m->v.active),
 373
 374                                HEAD_SET_RASTER_SYNC_END(i),
 375                  NVVAL(NV507D, HEAD_SET_RASTER_SYNC_END, X, m->h.synce) |
 376                  NVVAL(NV507D, HEAD_SET_RASTER_SYNC_END, Y, m->v.synce),
 377
 378                                HEAD_SET_RASTER_BLANK_END(i),
 379                  NVVAL(NV507D, HEAD_SET_RASTER_BLANK_END, X, m->h.blanke) |
 380                  NVVAL(NV507D, HEAD_SET_RASTER_BLANK_END, Y, m->v.blanke),
 381
 382                                HEAD_SET_RASTER_BLANK_START(i),
 383                  NVVAL(NV507D, HEAD_SET_RASTER_BLANK_START, X, m->h.blanks) |
 384                  NVVAL(NV507D, HEAD_SET_RASTER_BLANK_START, Y, m->v.blanks),
 385
 386                                HEAD_SET_RASTER_VERT_BLANK2(i),
 387                  NVVAL(NV507D, HEAD_SET_RASTER_VERT_BLANK2, YSTART, m->v.blank2s) |
 388                  NVVAL(NV507D, HEAD_SET_RASTER_VERT_BLANK2, YEND, m->v.blank2e),
 389
 390                                HEAD_SET_RASTER_VERT_BLANK_DMI(i),
 391                  NVVAL(NV507D, HEAD_SET_RASTER_VERT_BLANK_DMI, DURATION, m->v.blankus));
 392
 393        PUSH_MTHD(push, NV507D, HEAD_SET_DEFAULT_BASE_COLOR(i),
 394                  NVVAL(NV507D, HEAD_SET_DEFAULT_BASE_COLOR, RED, 0) |
 395                  NVVAL(NV507D, HEAD_SET_DEFAULT_BASE_COLOR, GREEN, 0) |
 396                  NVVAL(NV507D, HEAD_SET_DEFAULT_BASE_COLOR, BLUE, 0));
 397        return 0;
 398}
 399
 400int
 401head507d_view(struct nv50_head *head, struct nv50_head_atom *asyh)
 402{
 403        struct nvif_push *push = nv50_disp(head->base.base.dev)->core->chan.push;
 404        const int i = head->base.index;
 405        int ret;
 406
 407        if ((ret = PUSH_WAIT(push, 7)))
 408                return ret;
 409
 410        PUSH_MTHD(push, NV507D, HEAD_SET_CONTROL_OUTPUT_SCALER(i),
 411                  NVDEF(NV507D, HEAD_SET_CONTROL_OUTPUT_SCALER, VERTICAL_TAPS, TAPS_1) |
 412                  NVDEF(NV507D, HEAD_SET_CONTROL_OUTPUT_SCALER, HORIZONTAL_TAPS, TAPS_1) |
 413                  NVVAL(NV507D, HEAD_SET_CONTROL_OUTPUT_SCALER, HRESPONSE_BIAS, 0) |
 414                  NVVAL(NV507D, HEAD_SET_CONTROL_OUTPUT_SCALER, VRESPONSE_BIAS, 0));
 415
 416        PUSH_MTHD(push, NV507D, HEAD_SET_VIEWPORT_SIZE_IN(i),
 417                  NVVAL(NV507D, HEAD_SET_VIEWPORT_SIZE_IN, WIDTH, asyh->view.iW) |
 418                  NVVAL(NV507D, HEAD_SET_VIEWPORT_SIZE_IN, HEIGHT, asyh->view.iH));
 419
 420        PUSH_MTHD(push, NV507D, HEAD_SET_VIEWPORT_SIZE_OUT(i),
 421                  NVVAL(NV507D, HEAD_SET_VIEWPORT_SIZE_OUT, WIDTH, asyh->view.oW) |
 422                  NVVAL(NV507D, HEAD_SET_VIEWPORT_SIZE_OUT, HEIGHT, asyh->view.oH),
 423
 424                                HEAD_SET_VIEWPORT_SIZE_OUT_MIN(i),
 425                  NVVAL(NV507D, HEAD_SET_VIEWPORT_SIZE_OUT_MIN, WIDTH, asyh->view.oW) |
 426                  NVVAL(NV507D, HEAD_SET_VIEWPORT_SIZE_OUT_MIN, HEIGHT, asyh->view.oH));
 427        return 0;
 428}
 429
 430const struct nv50_head_func
 431head507d = {
 432        .view = head507d_view,
 433        .mode = head507d_mode,
 434        .olut = head507d_olut,
 435        .olut_size = 256,
 436        .olut_set = head507d_olut_set,
 437        .olut_clr = head507d_olut_clr,
 438        .core_calc = head507d_core_calc,
 439        .core_set = head507d_core_set,
 440        .core_clr = head507d_core_clr,
 441        .curs_layout = head507d_curs_layout,
 442        .curs_format = head507d_curs_format,
 443        .curs_set = head507d_curs_set,
 444        .curs_clr = head507d_curs_clr,
 445        .base = head507d_base,
 446        .ovly = head507d_ovly,
 447        .dither = head507d_dither,
 448        .procamp = head507d_procamp,
 449};
 450