src/gallium/drivers/freedreno/a6xx/fd6_blitter.c

   1 /*
   2  * Copyright (C) 2017 Rob Clark <robclark@freedesktop.org>
   3  * Copyright © 2018 Google, Inc.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  * Authors:
  25  *    Rob Clark <robclark@freedesktop.org>
  26  */
  27
  28 #include "util/u_dump.h"
  29
  30 #include "freedreno_blitter.h"
  31 #include "freedreno_fence.h"
  32 #include "freedreno_resource.h"
  33
  34 #include "fd6_blitter.h"
  35 #include "fd6_format.h"
  36 #include "fd6_emit.h"
  37
  38 /* Make sure none of the requested dimensions extend beyond the size of the
  39  * resource.  Not entirely sure why this happens, but sometimes it does, and
  40  * w/ 2d blt doesn't have wrap modes like a sampler, so force those cases
  41  * back to u_blitter
  42  */
  43 static bool
  44 ok_dims(const struct pipe_resource *r, const struct pipe_box *b, int lvl)
  45 {
  46         int last_layer =
  47                 r->target == PIPE_TEXTURE_3D ? u_minify(r->depth0, lvl)
  48                 : r->array_size;
  49
  50         return (b->x >= 0) && (b->x + b->width <= u_minify(r->width0, lvl)) &&
  51                 (b->y >= 0) && (b->y + b->height <= u_minify(r->height0, lvl)) &&
  52                 (b->z >= 0) && (b->z + b->depth <= last_layer);
  53 }
  54
  55 static bool
  56 ok_format(enum pipe_format pfmt)
  57 {
  58         enum a6xx_color_fmt fmt = fd6_pipe2color(pfmt);
  59         if (fmt == ~0)
  60                 return false;
  61
  62         if (fd6_ifmt(fmt) == 0)
  63                 return false;
  64
  65         return true;
  66 }
  67
  68 #define DEBUG_BLIT_FALLBACK 0
  69 #define fail_if(cond)                                                                                                   \
  70         do {                                                                                                                            \
  71                 if (cond) {                                                                                                             \
  72                         if (DEBUG_BLIT_FALLBACK) {                                                                      \
  73                                 fprintf(stderr, "falling back: %s for blit:\n", #cond); \
  74                                 util_dump_blit_info(stderr, info);                                              \
  75                                 fprintf(stderr, "\nsrc: ");                                                             \
  76                                 util_dump_resource(stderr, info->src.resource);                 \
  77                                 fprintf(stderr, "\ndst: ");                                                             \
  78                                 util_dump_resource(stderr, info->dst.resource);                 \
  79                                 fprintf(stderr, "\n");                                                                  \
  80                         }                                                                                                                       \
  81                         return false;                                                                                           \
  82                 }                                                                                                                               \
  83         } while (0)
  84
  85 static bool
  86 can_do_blit(const struct pipe_blit_info *info)
  87 {
  88         /* I think we can do scaling, but not in z dimension since that would
  89          * require blending..
  90          */
  91         fail_if(info->dst.box.depth != info->src.box.depth);
  92
  93         /* We can blit if both or neither formats are compressed formats... */
  94         fail_if(util_format_is_compressed(info->src.format) !=
  95                         util_format_is_compressed(info->src.format));
  96
  97         /* Fail if unsupported format: */
  98         fail_if(!ok_format(info->src.format));
  99         fail_if(!ok_format(info->dst.format));
 100
 101         /* ... but only if they're the same compression format. */
 102         fail_if(util_format_is_compressed(info->src.format) &&
 103                         info->src.format != info->dst.format);
 104
 105         /* src box can be inverted, which we don't support.. dst box cannot: */
 106         fail_if((info->src.box.width < 0) || (info->src.box.height < 0));
 107
 108         fail_if(!ok_dims(info->src.resource, &info->src.box, info->src.level));
 109
 110         fail_if(!ok_dims(info->dst.resource, &info->dst.box, info->dst.level));
 111
 112         debug_assert(info->dst.box.width >= 0);
 113         debug_assert(info->dst.box.height >= 0);
 114         debug_assert(info->dst.box.depth >= 0);
 115
 116         fail_if(info->dst.resource->nr_samples + info->src.resource->nr_samples > 2);
 117
 118         fail_if(info->window_rectangle_include);
 119
 120         fail_if(info->render_condition_enable);
 121
 122         fail_if(info->alpha_blend);
 123
 124         fail_if(info->mask != util_format_get_mask(info->src.format));
 125
 126         fail_if(info->mask != util_format_get_mask(info->dst.format));
 127
 128         return true;
 129 }
 130
 131 static void
 132 emit_setup(struct fd_ringbuffer *ring)
 133 {
 134         OUT_PKT7(ring, CP_EVENT_WRITE, 1);
 135         OUT_RING(ring, PC_CCU_INVALIDATE_COLOR);
 136
 137         OUT_PKT7(ring, CP_EVENT_WRITE, 1);
 138         OUT_RING(ring, LRZ_FLUSH);
 139
 140         OUT_PKT7(ring, CP_SKIP_IB2_ENABLE_GLOBAL, 1);
 141         OUT_RING(ring, 0x0);
 142
 143         OUT_WFI5(ring);
 144
 145         OUT_PKT4(ring, REG_A6XX_RB_CCU_CNTL, 1);
 146         OUT_RING(ring, 0x10000000);
 147 }
 148
 149 static uint32_t
 150 blit_control(enum a6xx_color_fmt fmt)
 151 {
 152         unsigned blit_cntl = 0xf00000;
 153         blit_cntl |= A6XX_RB_2D_BLIT_CNTL_COLOR_FORMAT(fmt);
 154         blit_cntl |= A6XX_RB_2D_BLIT_CNTL_IFMT(fd6_ifmt(fmt));
 155         return blit_cntl;
 156 }
 157
 158 /* buffers need to be handled specially since x/width can exceed the bounds
 159  * supported by hw.. if necessary decompose into (potentially) two 2D blits
 160  */
 161 static void
 162 emit_blit_buffer(struct fd_ringbuffer *ring, const struct pipe_blit_info *info)
 163 {
 164         const struct pipe_box *sbox = &info->src.box;
 165         const struct pipe_box *dbox = &info->dst.box;
 166         struct fd_resource *src, *dst;
 167         unsigned sshift, dshift;
 168
 169         if (DEBUG_BLIT_FALLBACK) {
 170                 fprintf(stderr, "buffer blit: ");
 171                 util_dump_blit_info(stderr, info);
 172                 fprintf(stderr, "\ndst resource: ");
 173                 util_dump_resource(stderr, info->dst.resource);
 174                 fprintf(stderr, "\nsrc resource: ");
 175                 util_dump_resource(stderr, info->src.resource);
 176                 fprintf(stderr, "\n");
 177         }
 178
 179         src = fd_resource(info->src.resource);
 180         dst = fd_resource(info->dst.resource);
 181
 182         debug_assert(src->cpp == 1);
 183         debug_assert(dst->cpp == 1);
 184         debug_assert(info->src.resource->format == info->dst.resource->format);
 185         debug_assert((sbox->y == 0) && (sbox->height == 1));
 186         debug_assert((dbox->y == 0) && (dbox->height == 1));
 187         debug_assert((sbox->z == 0) && (sbox->depth == 1));
 188         debug_assert((dbox->z == 0) && (dbox->depth == 1));
 189         debug_assert(sbox->width == dbox->width);
 190         debug_assert(info->src.level == 0);
 191         debug_assert(info->dst.level == 0);
 192
 193         /*
 194          * Buffers can have dimensions bigger than max width, remap into
 195          * multiple 1d blits to fit within max dimension
 196          *
 197          * Note that blob uses .ARRAY_PITCH=128 for blitting buffers, which
 198          * seems to prevent overfetch related faults.  Not quite sure what
 199          * the deal is there.
 200          *
 201          * Low 6 bits of SRC/DST addresses need to be zero (ie. address
 202          * aligned to 64) so we need to shift src/dst x1/x2 to make up the
 203          * difference.  On top of already splitting up the blit so width
 204          * isn't > 16k.
 205          *
 206          * We perhaps could do a bit better, if src and dst are aligned but
 207          * in the worst case this means we have to split the copy up into
 208          * 16k (0x4000) minus 64 (0x40).
 209          */
 210
 211         sshift = sbox->x & 0x3f;
 212         dshift = dbox->x & 0x3f;
 213
 214         OUT_PKT7(ring, CP_SET_MARKER, 1);
 215         OUT_RING(ring, A2XX_CP_SET_MARKER_0_MODE(RM6_BLIT2DSCALE));
 216
 217         uint32_t blit_cntl = blit_control(RB6_R8_UNORM) | 0x20000000;
 218         OUT_PKT4(ring, REG_A6XX_RB_2D_BLIT_CNTL, 1);
 219         OUT_RING(ring, blit_cntl);
 220
 221         OUT_PKT4(ring, REG_A6XX_GRAS_2D_BLIT_CNTL, 1);
 222         OUT_RING(ring, blit_cntl);
 223
 224         for (unsigned off = 0; off < sbox->width; off += (0x4000 - 0x40)) {
 225                 unsigned soff, doff, w, p;
 226
 227                 soff = (sbox->x + off) & ~0x3f;
 228                 doff = (dbox->x + off) & ~0x3f;
 229
 230                 w = MIN2(sbox->width - off, (0x4000 - 0x40));
 231                 p = align(w, 64);
 232
 233                 debug_assert((soff + w) <= fd_bo_size(src->bo));
 234                 debug_assert((doff + w) <= fd_bo_size(dst->bo));
 235
 236                 /*
 237                  * Emit source:
 238                  */
 239                 OUT_PKT4(ring, REG_A6XX_SP_PS_2D_SRC_INFO, 13);
 240                 OUT_RING(ring, A6XX_SP_PS_2D_SRC_INFO_COLOR_FORMAT(RB6_R8_UNORM) |
 241                                 A6XX_SP_PS_2D_SRC_INFO_TILE_MODE(TILE6_LINEAR) |
 242                                  A6XX_SP_PS_2D_SRC_INFO_COLOR_SWAP(WZYX) | 0x500000);
 243                 OUT_RING(ring, A6XX_SP_PS_2D_SRC_SIZE_WIDTH(sshift + w) |
 244                                  A6XX_SP_PS_2D_SRC_SIZE_HEIGHT(1)); /* SP_PS_2D_SRC_SIZE */
 245                 OUT_RELOC(ring, src->bo, soff, 0, 0);    /* SP_PS_2D_SRC_LO/HI */
 246                 OUT_RING(ring, A6XX_SP_PS_2D_SRC_PITCH_PITCH(p));
 247
 248                 OUT_RING(ring, 0x00000000);
 249                 OUT_RING(ring, 0x00000000);
 250                 OUT_RING(ring, 0x00000000);
 251                 OUT_RING(ring, 0x00000000);
 252                 OUT_RING(ring, 0x00000000);
 253
 254                 OUT_RING(ring, 0x00000000);
 255                 OUT_RING(ring, 0x00000000);
 256                 OUT_RING(ring, 0x00000000);
 257
 258                 /*
 259                  * Emit destination:
 260                  */
 261                 OUT_PKT4(ring, REG_A6XX_RB_2D_DST_INFO, 9);
 262                 OUT_RING(ring, A6XX_RB_2D_DST_INFO_COLOR_FORMAT(RB6_R8_UNORM) |
 263                                  A6XX_RB_2D_DST_INFO_TILE_MODE(TILE6_LINEAR) |
 264                                  A6XX_RB_2D_DST_INFO_COLOR_SWAP(WZYX));
 265                 OUT_RELOC(ring, dst->bo, doff, 0, 0);    /* RB_2D_DST_LO/HI */
 266                 OUT_RING(ring, A6XX_RB_2D_DST_SIZE_PITCH(p));
 267                 OUT_RING(ring, 0x00000000);
 268                 OUT_RING(ring, 0x00000000);
 269                 OUT_RING(ring, 0x00000000);
 270                 OUT_RING(ring, 0x00000000);
 271                 OUT_RING(ring, 0x00000000);
 272
 273                 /*
 274                  * Blit command:
 275                  */
 276                 OUT_PKT4(ring, REG_A6XX_GRAS_2D_SRC_TL_X, 4);
 277                 OUT_RING(ring, A6XX_GRAS_2D_SRC_TL_X_X(sshift));
 278                 OUT_RING(ring, A6XX_GRAS_2D_SRC_BR_X_X(sshift + w - 1));
 279                 OUT_RING(ring, A6XX_GRAS_2D_SRC_TL_Y_Y(0));
 280                 OUT_RING(ring, A6XX_GRAS_2D_SRC_BR_Y_Y(0));
 281
 282                 OUT_PKT4(ring, REG_A6XX_GRAS_2D_DST_TL, 2);
 283                 OUT_RING(ring, A6XX_GRAS_2D_DST_TL_X(dshift) | A6XX_GRAS_2D_DST_TL_Y(0));
 284                 OUT_RING(ring, A6XX_GRAS_2D_DST_BR_X(dshift + w - 1) | A6XX_GRAS_2D_DST_BR_Y(0));
 285
 286                 OUT_PKT7(ring, CP_EVENT_WRITE, 1);
 287                 OUT_RING(ring, 0x3f);
 288                 OUT_WFI5(ring);
 289
 290                 OUT_PKT4(ring, REG_A6XX_RB_UNKNOWN_8C01, 1);
 291                 OUT_RING(ring, 0);
 292
 293                 OUT_PKT4(ring, REG_A6XX_SP_2D_SRC_FORMAT, 1);
 294                 OUT_RING(ring, 0xf180);
 295
 296                 OUT_PKT4(ring, REG_A6XX_RB_UNKNOWN_8E04, 1);
 297                 OUT_RING(ring, 0x01000000);
 298
 299                 OUT_PKT7(ring, CP_BLIT, 1);
 300                 OUT_RING(ring, CP_BLIT_0_OP(BLIT_OP_SCALE));
 301
 302                 OUT_WFI5(ring);
 303
 304                 OUT_PKT4(ring, REG_A6XX_RB_UNKNOWN_8E04, 1);
 305                 OUT_RING(ring, 0);
 306         }
 307 }
 308
 309 static void
 310 emit_blit_texture(struct fd_ringbuffer *ring, const struct pipe_blit_info *info)
 311 {
 312         const struct pipe_box *sbox = &info->src.box;
 313         const struct pipe_box *dbox = &info->dst.box;
 314         struct fd_resource *src, *dst;
 315         struct fd_resource_slice *sslice, *dslice;
 316         enum a6xx_color_fmt sfmt, dfmt;
 317         enum a6xx_tile_mode stile, dtile;
 318         enum a3xx_color_swap sswap, dswap;
 319         unsigned spitch, dpitch;
 320         unsigned sx1, sy1, sx2, sy2;
 321         unsigned dx1, dy1, dx2, dy2;
 322
 323         if (DEBUG_BLIT_FALLBACK) {
 324                 fprintf(stderr, "texture blit: ");
 325                 util_dump_blit_info(stderr, info);
 326                 fprintf(stderr, "\ndst resource: ");
 327                 util_dump_resource(stderr, info->dst.resource);
 328                 fprintf(stderr, "\nsrc resource: ");
 329                 util_dump_resource(stderr, info->src.resource);
 330                 fprintf(stderr, "\n");
 331         }
 332
 333         src = fd_resource(info->src.resource);
 334         dst = fd_resource(info->dst.resource);
 335
 336         sslice = fd_resource_slice(src, info->src.level);
 337         dslice = fd_resource_slice(dst, info->dst.level);
 338
 339         sfmt = fd6_pipe2color(info->src.format);
 340         dfmt = fd6_pipe2color(info->dst.format);
 341
 342         int blocksize = util_format_get_blocksize(info->src.format);
 343         int blockwidth = util_format_get_blockwidth(info->src.format);
 344         int blockheight = util_format_get_blockheight(info->src.format);
 345         int nelements;
 346
 347         stile = fd_resource_level_linear(info->src.resource, info->src.level) ?
 348                         TILE6_LINEAR : src->tile_mode;
 349         dtile = fd_resource_level_linear(info->dst.resource, info->dst.level) ?
 350                         TILE6_LINEAR : dst->tile_mode;
 351
 352         sswap = stile ? WZYX : fd6_pipe2swap(info->src.format);
 353         dswap = dtile ? WZYX : fd6_pipe2swap(info->dst.format);
 354
 355         if (util_format_is_compressed(info->src.format)) {
 356                 debug_assert(info->src.format == info->dst.format);
 357                 sfmt = dfmt = RB6_R8_UNORM;
 358                 nelements = blocksize;
 359         } else {
 360                 debug_assert(!util_format_is_compressed(info->dst.format));
 361                 nelements = 1;
 362         }
 363
 364         spitch = DIV_ROUND_UP(sslice->pitch, blockwidth) * src->cpp;
 365         dpitch = DIV_ROUND_UP(dslice->pitch, blockwidth) * dst->cpp;
 366
 367         sx1 = sbox->x / blockwidth * nelements;
 368         sy1 = sbox->y / blockheight;
 369         sx2 = DIV_ROUND_UP(sbox->x + sbox->width, blockwidth) * nelements - 1;
 370         sy2 = DIV_ROUND_UP(sbox->y + sbox->height, blockheight) - 1;
 371
 372         dx1 = dbox->x / blockwidth * nelements;
 373         dy1 = dbox->y / blockheight;
 374         dx2 = DIV_ROUND_UP(dbox->x + dbox->width, blockwidth) * nelements - 1;
 375         dy2 = DIV_ROUND_UP(dbox->y + dbox->height, blockheight) - 1;
 376
 377         uint32_t width = DIV_ROUND_UP(u_minify(src->base.width0, info->src.level), blockwidth) * nelements;
 378         uint32_t height = DIV_ROUND_UP(u_minify(src->base.height0, info->src.level), blockheight);
 379
 380         OUT_PKT7(ring, CP_SET_MARKER, 1);
 381         OUT_RING(ring, A2XX_CP_SET_MARKER_0_MODE(RM6_BLIT2DSCALE));
 382
 383         uint32_t blit_cntl = blit_control(dfmt);
 384
 385         if (dtile != stile)
 386                 blit_cntl |= 0x20000000;
 387
 388         if (info->scissor_enable) {
 389                 OUT_PKT4(ring, REG_A6XX_GRAS_RESOLVE_CNTL_1, 2);
 390                 OUT_RING(ring, A6XX_GRAS_RESOLVE_CNTL_1_X(info->scissor.minx) |
 391                                  A6XX_GRAS_RESOLVE_CNTL_1_Y(info->scissor.miny));
 392                 OUT_RING(ring, A6XX_GRAS_RESOLVE_CNTL_1_X(info->scissor.maxx - 1) |
 393                                  A6XX_GRAS_RESOLVE_CNTL_1_Y(info->scissor.maxy - 1));
 394                 blit_cntl |= A6XX_RB_2D_BLIT_CNTL_SCISSOR;
 395         }
 396
 397         OUT_PKT4(ring, REG_A6XX_RB_2D_BLIT_CNTL, 1);
 398         OUT_RING(ring, blit_cntl);
 399
 400         OUT_PKT4(ring, REG_A6XX_GRAS_2D_BLIT_CNTL, 1);
 401         OUT_RING(ring, blit_cntl);
 402
 403         for (unsigned i = 0; i < info->dst.box.depth; i++) {
 404                 unsigned soff = fd_resource_offset(src, info->src.level, sbox->z + i);
 405                 unsigned doff = fd_resource_offset(dst, info->dst.level, dbox->z + i);
 406
 407                 /*
 408                  * Emit source:
 409                  */
 410                 uint32_t filter = 0;
 411                 if (info->filter == PIPE_TEX_FILTER_LINEAR)
 412                         filter = A6XX_SP_PS_2D_SRC_INFO_FILTER;
 413
 414                 OUT_PKT4(ring, REG_A6XX_SP_PS_2D_SRC_INFO, 13);
 415                 OUT_RING(ring, A6XX_SP_PS_2D_SRC_INFO_COLOR_FORMAT(sfmt) |
 416                                 A6XX_SP_PS_2D_SRC_INFO_TILE_MODE(stile) |
 417                                 A6XX_SP_PS_2D_SRC_INFO_COLOR_SWAP(sswap) | 0x500000 | filter);
 418                 OUT_RING(ring, A6XX_SP_PS_2D_SRC_SIZE_WIDTH(width) |
 419                                  A6XX_SP_PS_2D_SRC_SIZE_HEIGHT(height)); /* SP_PS_2D_SRC_SIZE */
 420                 OUT_RELOC(ring, src->bo, soff, 0, 0);    /* SP_PS_2D_SRC_LO/HI */
 421                 OUT_RING(ring, A6XX_SP_PS_2D_SRC_PITCH_PITCH(spitch));
 422                 OUT_RING(ring, 0x00000000);
 423                 OUT_RING(ring, 0x00000000);
 424                 OUT_RING(ring, 0x00000000);
 425                 OUT_RING(ring, 0x00000000);
 426                 OUT_RING(ring, 0x00000000);
 427
 428                 OUT_RING(ring, 0x00000000);
 429                 OUT_RING(ring, 0x00000000);
 430                 OUT_RING(ring, 0x00000000);
 431
 432                 /*
 433                  * Emit destination:
 434                  */
 435                 OUT_PKT4(ring, REG_A6XX_RB_2D_DST_INFO, 9);
 436                 OUT_RING(ring, A6XX_RB_2D_DST_INFO_COLOR_FORMAT(dfmt) |
 437                                  A6XX_RB_2D_DST_INFO_TILE_MODE(dtile) |
 438                                  A6XX_RB_2D_DST_INFO_COLOR_SWAP(dswap));
 439                 OUT_RELOC(ring, dst->bo, doff, 0, 0);    /* RB_2D_DST_LO/HI */
 440                 OUT_RING(ring, A6XX_RB_2D_DST_SIZE_PITCH(dpitch));
 441                 OUT_RING(ring, 0x00000000);
 442                 OUT_RING(ring, 0x00000000);
 443                 OUT_RING(ring, 0x00000000);
 444                 OUT_RING(ring, 0x00000000);
 445                 OUT_RING(ring, 0x00000000);
 446
 447                 /*
 448                  * Blit command:
 449                  */
 450                 OUT_PKT4(ring, REG_A6XX_GRAS_2D_SRC_TL_X, 4);
 451                 OUT_RING(ring, A6XX_GRAS_2D_SRC_TL_X_X(sx1));
 452                 OUT_RING(ring, A6XX_GRAS_2D_SRC_BR_X_X(sx2));
 453                 OUT_RING(ring, A6XX_GRAS_2D_SRC_TL_Y_Y(sy1));
 454                 OUT_RING(ring, A6XX_GRAS_2D_SRC_BR_Y_Y(sy2));
 455
 456                 OUT_PKT4(ring, REG_A6XX_GRAS_2D_DST_TL, 2);
 457                 OUT_RING(ring, A6XX_GRAS_2D_DST_TL_X(dx1) | A6XX_GRAS_2D_DST_TL_Y(dy1));
 458                 OUT_RING(ring, A6XX_GRAS_2D_DST_BR_X(dx2) | A6XX_GRAS_2D_DST_BR_Y(dy2));
 459
 460                 OUT_PKT7(ring, CP_EVENT_WRITE, 1);
 461                 OUT_RING(ring, 0x3f);
 462                 OUT_WFI5(ring);
 463
 464                 OUT_PKT4(ring, REG_A6XX_RB_UNKNOWN_8C01, 1);
 465                 OUT_RING(ring, 0);
 466
 467                 OUT_PKT4(ring, REG_A6XX_SP_2D_SRC_FORMAT, 1);
 468                 OUT_RING(ring, A6XX_SP_2D_SRC_FORMAT_COLOR_FORMAT(sfmt) |
 469                                 COND(util_format_is_pure_sint(info->src.format),
 470                                                 A6XX_SP_2D_SRC_FORMAT_SINT) |
 471                                 COND(util_format_is_pure_uint(info->src.format),
 472                                                 A6XX_SP_2D_SRC_FORMAT_UINT) |
 473                                 COND(util_format_is_snorm(info->src.format),
 474                                                 A6XX_SP_2D_SRC_FORMAT_SINT |
 475                                                 A6XX_SP_2D_SRC_FORMAT_NORM) |
 476                                 COND(util_format_is_unorm(info->src.format),
 477 // TODO sometimes blob uses UINT+NORM but dEQP seems unhappy about that
 478 //                                              A6XX_SP_2D_SRC_FORMAT_UINT |
 479                                                 A6XX_SP_2D_SRC_FORMAT_NORM) |
 480                                 0xf000);
 481
 482                 OUT_PKT4(ring, REG_A6XX_RB_UNKNOWN_8E04, 1);
 483                 OUT_RING(ring, 0x01000000);
 484
 485                 OUT_PKT7(ring, CP_BLIT, 1);
 486                 OUT_RING(ring, CP_BLIT_0_OP(BLIT_OP_SCALE));
 487
 488                 OUT_WFI5(ring);
 489
 490                 OUT_PKT4(ring, REG_A6XX_RB_UNKNOWN_8E04, 1);
 491                 OUT_RING(ring, 0);
 492         }
 493 }
 494
 495 static void
 496 emit_blit(struct fd_context *ctx, const struct pipe_blit_info *info)
 497 {
 498         struct fd_batch *batch;
 499
 500         fd_fence_ref(ctx->base.screen, &ctx->last_fence, NULL);
 501
 502         batch = fd_bc_alloc_batch(&ctx->screen->batch_cache, ctx, true);
 503
 504         fd6_emit_restore(batch, batch->draw);
 505         fd6_emit_lrz_flush(batch->draw);
 506
 507         mtx_lock(&ctx->screen->lock);
 508
 509         fd_batch_resource_used(batch, fd_resource(info->src.resource), false);
 510         fd_batch_resource_used(batch, fd_resource(info->dst.resource), true);
 511
 512         mtx_unlock(&ctx->screen->lock);
 513
 514         emit_setup(batch->draw);
 515
 516         if ((info->src.resource->target == PIPE_BUFFER) &&
 517                         (info->dst.resource->target == PIPE_BUFFER)) {
 518                 assert(fd_resource(info->src.resource)->tile_mode == TILE6_LINEAR);
 519                 assert(fd_resource(info->dst.resource)->tile_mode == TILE6_LINEAR);
 520                 emit_blit_buffer(batch->draw, info);
 521         } else {
 522                 /* I don't *think* we need to handle blits between buffer <-> !buffer */
 523                 debug_assert(info->src.resource->target != PIPE_BUFFER);
 524                 debug_assert(info->dst.resource->target != PIPE_BUFFER);
 525                 emit_blit_texture(batch->draw, info);
 526         }
 527
 528         fd6_event_write(batch, batch->draw, 0x1d, true);
 529         fd6_event_write(batch, batch->draw, FACENESS_FLUSH, true);
 530         fd6_event_write(batch, batch->draw, CACHE_FLUSH_TS, true);
 531
 532         fd_resource(info->dst.resource)->valid = true;
 533         batch->needs_flush = true;
 534
 535         fd_batch_flush(batch, false, false);
 536         fd_batch_reference(&batch, NULL);
 537 }
 538
 539 static bool
 540 fd6_blit(struct fd_context *ctx, const struct pipe_blit_info *info)
 541 {
 542         if (!can_do_blit(info)) {
 543                 return false;
 544         }
 545
 546         emit_blit(ctx, info);
 547
 548         return true;
 549 }
 550
 551 void
 552 fd6_blitter_init(struct pipe_context *pctx)
 553 {
 554         if (fd_mesa_debug & FD_DBG_NOBLIT)
 555                 return;
 556
 557         fd_context(pctx)->blit = fd6_blit;
 558 }
 559
 560 unsigned
 561 fd6_tile_mode(const struct pipe_resource *tmpl)
 562 {
 563         /* basically just has to be a format we can blit, so uploads/downloads
 564          * via linear staging buffer works:
 565          */
 566         if (ok_format(tmpl->format))
 567                 return TILE6_3;
 568
 569         return TILE6_LINEAR;
 570 }