src/gallium/drivers/etnaviv/etnaviv_blt.c

   1 /*
   2  * Copyright (c) 2017 Etnaviv Project
   3  * Copyright (C) 2017 Zodiac Inflight Innovations
   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, sub license,
   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
  13  * next paragraph) shall be included in all copies or substantial portions
  14  * of the 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 NON-INFRINGEMENT. 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
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Wladimir J. van der Laan <laanwj@gmail.com>
  26  */
  27 #include "etnaviv_blt.h"
  28
  29 #include "etnaviv_emit.h"
  30 #include "etnaviv_clear_blit.h"
  31 #include "etnaviv_context.h"
  32 #include "etnaviv_emit.h"
  33 #include "etnaviv_format.h"
  34 #include "etnaviv_resource.h"
  35 #include "etnaviv_surface.h"
  36 #include "etnaviv_translate.h"
  37
  38 #include "util/u_math.h"
  39 #include "pipe/p_defines.h"
  40 #include "pipe/p_state.h"
  41 #include "util/u_blitter.h"
  42 #include "util/u_inlines.h"
  43 #include "util/u_memory.h"
  44 #include "util/u_surface.h"
  45
  46 #include "hw/common_3d.xml.h"
  47 #include "hw/state_blt.xml.h"
  48 #include "hw/common.xml.h"
  49
  50 #include <assert.h>
  51
  52 static uint32_t
  53 etna_compatible_blt_format(enum pipe_format fmt)
  54 {
  55    /* YUYV and UYVY are blocksize 4, but 2 bytes per pixel */
  56    if (fmt == PIPE_FORMAT_YUYV || fmt == PIPE_FORMAT_UYVY)
  57       return BLT_FORMAT_R8G8;
  58
  59    switch (util_format_get_blocksize(fmt)) {
  60    case 1: return BLT_FORMAT_R8;
  61    case 2: return BLT_FORMAT_R8G8;
  62    case 4: return BLT_FORMAT_A8R8G8B8;
  63    case 8: return BLT_FORMAT_A16R16G16B16;
  64    default: return ETNA_NO_MATCH;
  65    }
  66 }
  67
  68 static inline uint32_t
  69 blt_compute_stride_bits(const struct blt_imginfo *img)
  70 {
  71    return VIVS_BLT_DEST_STRIDE_TILING(img->tiling == ETNA_LAYOUT_LINEAR ? 0 : 3) | /* 1/3? */
  72           VIVS_BLT_DEST_STRIDE_FORMAT(img->format) |
  73           VIVS_BLT_DEST_STRIDE_STRIDE(img->stride);
  74 }
  75
  76 static inline uint32_t
  77 blt_compute_img_config_bits(const struct blt_imginfo *img, bool for_dest)
  78 {
  79    uint32_t tiling_bits = 0;
  80    if (img->tiling == ETNA_LAYOUT_SUPER_TILED) {
  81       tiling_bits |= for_dest ? BLT_IMAGE_CONFIG_TO_SUPER_TILED : BLT_IMAGE_CONFIG_FROM_SUPER_TILED;
  82    }
  83
  84    return BLT_IMAGE_CONFIG_TS_MODE(img->ts_mode) |
  85           COND(img->use_ts, BLT_IMAGE_CONFIG_TS) |
  86           COND(img->use_ts && img->ts_compress_fmt >= 0, BLT_IMAGE_CONFIG_COMPRESSION) |
  87           BLT_IMAGE_CONFIG_COMPRESSION_FORMAT(img->ts_compress_fmt) |
  88           COND(for_dest, BLT_IMAGE_CONFIG_UNK22) |
  89           BLT_IMAGE_CONFIG_SWIZ_R(0) | /* not used? */
  90           BLT_IMAGE_CONFIG_SWIZ_G(1) |
  91           BLT_IMAGE_CONFIG_SWIZ_B(2) |
  92           BLT_IMAGE_CONFIG_SWIZ_A(3) |
  93           tiling_bits;
  94 }
  95
  96 static inline uint32_t
  97 blt_compute_swizzle_bits(const struct blt_imginfo *img, bool for_dest)
  98 {
  99    uint32_t swiz = VIVS_BLT_SWIZZLE_SRC_R(img->swizzle[0]) |
 100                    VIVS_BLT_SWIZZLE_SRC_G(img->swizzle[1]) |
 101                    VIVS_BLT_SWIZZLE_SRC_B(img->swizzle[2]) |
 102                    VIVS_BLT_SWIZZLE_SRC_A(img->swizzle[3]);
 103    return for_dest ? (swiz << 12) : swiz;
 104 }
 105
 106 /* Clear (part of) an image */
 107 static void
 108 emit_blt_clearimage(struct etna_cmd_stream *stream, const struct blt_clear_op *op)
 109 {
 110    etna_cmd_stream_reserve(stream, 64*2); /* Make sure BLT op doesn't get broken up */
 111
 112    etna_set_state(stream, VIVS_BLT_ENABLE, 0x00000001);
 113    assert(op->dest.bpp);
 114    etna_set_state(stream, VIVS_BLT_CONFIG, VIVS_BLT_CONFIG_CLEAR_BPP(op->dest.bpp-1));
 115    /* NB: blob sets format to 1 in dest/src config for clear, and the swizzle to RRRR.
 116     * does this matter? It seems to just be ignored. But if we run into issues with BLT
 117     * behaving stragely, it's something to look at.
 118     */
 119    etna_set_state(stream, VIVS_BLT_DEST_STRIDE, blt_compute_stride_bits(&op->dest));
 120    etna_set_state(stream, VIVS_BLT_DEST_CONFIG, blt_compute_img_config_bits(&op->dest, true));
 121    etna_set_state_reloc(stream, VIVS_BLT_DEST_ADDR, &op->dest.addr);
 122    etna_set_state(stream, VIVS_BLT_SRC_STRIDE, blt_compute_stride_bits(&op->dest));
 123    etna_set_state(stream, VIVS_BLT_SRC_CONFIG, blt_compute_img_config_bits(&op->dest, false));
 124    etna_set_state_reloc(stream, VIVS_BLT_SRC_ADDR, &op->dest.addr);
 125    etna_set_state(stream, VIVS_BLT_DEST_POS, VIVS_BLT_DEST_POS_X(op->rect_x) | VIVS_BLT_DEST_POS_Y(op->rect_y));
 126    etna_set_state(stream, VIVS_BLT_IMAGE_SIZE, VIVS_BLT_IMAGE_SIZE_WIDTH(op->rect_w) | VIVS_BLT_IMAGE_SIZE_HEIGHT(op->rect_h));
 127    etna_set_state(stream, VIVS_BLT_CLEAR_COLOR0, op->clear_value[0]);
 128    etna_set_state(stream, VIVS_BLT_CLEAR_COLOR1, op->clear_value[1]);
 129    etna_set_state(stream, VIVS_BLT_CLEAR_BITS0, op->clear_bits[0]);
 130    etna_set_state(stream, VIVS_BLT_CLEAR_BITS1, op->clear_bits[1]);
 131    if (op->dest.use_ts) {
 132       etna_set_state_reloc(stream, VIVS_BLT_DEST_TS, &op->dest.ts_addr);
 133       etna_set_state_reloc(stream, VIVS_BLT_SRC_TS, &op->dest.ts_addr);
 134       etna_set_state(stream, VIVS_BLT_DEST_TS_CLEAR_VALUE0, op->dest.ts_clear_value[0]);
 135       etna_set_state(stream, VIVS_BLT_DEST_TS_CLEAR_VALUE1, op->dest.ts_clear_value[1]);
 136       etna_set_state(stream, VIVS_BLT_SRC_TS_CLEAR_VALUE0, op->dest.ts_clear_value[0]);
 137       etna_set_state(stream, VIVS_BLT_SRC_TS_CLEAR_VALUE1, op->dest.ts_clear_value[1]);
 138    }
 139    etna_set_state(stream, VIVS_BLT_SET_COMMAND, 0x00000003);
 140    etna_set_state(stream, VIVS_BLT_COMMAND, VIVS_BLT_COMMAND_COMMAND_CLEAR_IMAGE);
 141    etna_set_state(stream, VIVS_BLT_SET_COMMAND, 0x00000003);
 142    etna_set_state(stream, VIVS_BLT_ENABLE, 0x00000000);
 143 }
 144
 145 /* Copy (a subset of) an image to another image. */
 146 static void
 147 emit_blt_copyimage(struct etna_cmd_stream *stream, const struct blt_imgcopy_op *op)
 148 {
 149    etna_cmd_stream_reserve(stream, 64*2); /* Never allow BLT sequences to be broken up */
 150
 151    etna_set_state(stream, VIVS_BLT_ENABLE, 0x00000001);
 152    etna_set_state(stream, VIVS_BLT_CONFIG,
 153            VIVS_BLT_CONFIG_SRC_ENDIAN(op->src.endian_mode) |
 154            VIVS_BLT_CONFIG_DEST_ENDIAN(op->dest.endian_mode));
 155    etna_set_state(stream, VIVS_BLT_SRC_STRIDE, blt_compute_stride_bits(&op->src));
 156    etna_set_state(stream, VIVS_BLT_SRC_CONFIG, blt_compute_img_config_bits(&op->src, false));
 157    etna_set_state(stream, VIVS_BLT_SWIZZLE,
 158            blt_compute_swizzle_bits(&op->src, false) |
 159            blt_compute_swizzle_bits(&op->dest, true));
 160    etna_set_state(stream, VIVS_BLT_UNK140A0, 0x00040004);
 161    etna_set_state(stream, VIVS_BLT_UNK1409C, 0x00400040);
 162    if (op->src.use_ts) {
 163       etna_set_state_reloc(stream, VIVS_BLT_SRC_TS, &op->src.ts_addr);
 164       etna_set_state(stream, VIVS_BLT_SRC_TS_CLEAR_VALUE0, op->src.ts_clear_value[0]);
 165       etna_set_state(stream, VIVS_BLT_SRC_TS_CLEAR_VALUE1, op->src.ts_clear_value[1]);
 166    }
 167    etna_set_state_reloc(stream, VIVS_BLT_SRC_ADDR, &op->src.addr);
 168    etna_set_state(stream, VIVS_BLT_DEST_STRIDE, blt_compute_stride_bits(&op->dest));
 169    etna_set_state(stream, VIVS_BLT_DEST_CONFIG,
 170          blt_compute_img_config_bits(&op->dest, true) |
 171          COND(op->flip_y, BLT_IMAGE_CONFIG_FLIP_Y));
 172    assert(!op->dest.use_ts); /* Dest TS path doesn't work for copies? */
 173    if (op->dest.use_ts) {
 174       etna_set_state_reloc(stream, VIVS_BLT_DEST_TS, &op->dest.ts_addr);
 175       etna_set_state(stream, VIVS_BLT_DEST_TS_CLEAR_VALUE0, op->dest.ts_clear_value[0]);
 176       etna_set_state(stream, VIVS_BLT_DEST_TS_CLEAR_VALUE1, op->dest.ts_clear_value[1]);
 177    }
 178    etna_set_state_reloc(stream, VIVS_BLT_DEST_ADDR, &op->dest.addr);
 179    etna_set_state(stream, VIVS_BLT_SRC_POS, VIVS_BLT_DEST_POS_X(op->src_x) | VIVS_BLT_DEST_POS_Y(op->src_y));
 180    etna_set_state(stream, VIVS_BLT_DEST_POS, VIVS_BLT_DEST_POS_X(op->dest_x) | VIVS_BLT_DEST_POS_Y(op->dest_y));
 181    etna_set_state(stream, VIVS_BLT_IMAGE_SIZE, VIVS_BLT_IMAGE_SIZE_WIDTH(op->rect_w) | VIVS_BLT_IMAGE_SIZE_HEIGHT(op->rect_h));
 182    etna_set_state(stream, VIVS_BLT_UNK14058, 0xffffffff);
 183    etna_set_state(stream, VIVS_BLT_UNK1405C, 0xffffffff);
 184    etna_set_state(stream, VIVS_BLT_SET_COMMAND, 0x00000003);
 185    etna_set_state(stream, VIVS_BLT_COMMAND, VIVS_BLT_COMMAND_COMMAND_COPY_IMAGE);
 186    etna_set_state(stream, VIVS_BLT_SET_COMMAND, 0x00000003);
 187    etna_set_state(stream, VIVS_BLT_ENABLE, 0x00000000);
 188 }
 189
 190 /* Emit in-place resolve using BLT. */
 191 static void
 192 emit_blt_inplace(struct etna_cmd_stream *stream, const struct blt_inplace_op *op)
 193 {
 194    assert(op->bpp > 0 && util_is_power_of_two_nonzero(op->bpp));
 195    etna_cmd_stream_reserve(stream, 64*2); /* Never allow BLT sequences to be broken up */
 196    etna_set_state(stream, VIVS_BLT_ENABLE, 0x00000001);
 197    etna_set_state(stream, VIVS_BLT_CONFIG,
 198          VIVS_BLT_CONFIG_INPLACE_TS_MODE(op->ts_mode) |
 199          VIVS_BLT_CONFIG_INPLACE_BOTH |
 200          (util_logbase2(op->bpp) << VIVS_BLT_CONFIG_INPLACE_BPP__SHIFT));
 201    etna_set_state(stream, VIVS_BLT_DEST_TS_CLEAR_VALUE0, op->ts_clear_value[0]);
 202    etna_set_state(stream, VIVS_BLT_DEST_TS_CLEAR_VALUE1, op->ts_clear_value[1]);
 203    etna_set_state_reloc(stream, VIVS_BLT_DEST_ADDR, &op->addr);
 204    etna_set_state_reloc(stream, VIVS_BLT_DEST_TS, &op->ts_addr);
 205    etna_set_state(stream, 0x14068, op->num_tiles);
 206    etna_set_state(stream, VIVS_BLT_SET_COMMAND, 0x00000003);
 207    etna_set_state(stream, VIVS_BLT_COMMAND, 0x00000004);
 208    etna_set_state(stream, VIVS_BLT_SET_COMMAND, 0x00000003);
 209    etna_set_state(stream, VIVS_BLT_ENABLE, 0x00000000);
 210 }
 211
 212 static void
 213 etna_blit_clear_color_blt(struct pipe_context *pctx, struct pipe_surface *dst,
 214                       const union pipe_color_union *color)
 215 {
 216    struct etna_context *ctx = etna_context(pctx);
 217    struct etna_surface *surf = etna_surface(dst);
 218    uint32_t new_clear_value = etna_clear_blit_pack_rgba(surf->base.format, color->f);
 219
 220    struct etna_resource *res = etna_resource(surf->base.texture);
 221    struct blt_clear_op clr = {};
 222    clr.dest.addr.bo = res->bo;
 223    clr.dest.addr.offset = surf->surf.offset;
 224    clr.dest.addr.flags = ETNA_RELOC_WRITE;
 225    clr.dest.bpp = util_format_get_blocksize(surf->base.format);
 226    clr.dest.stride = surf->surf.stride;
 227    clr.dest.tiling = res->layout;
 228
 229    if (surf->surf.ts_size) {
 230       clr.dest.use_ts = 1;
 231       clr.dest.ts_addr.bo = res->ts_bo;
 232       clr.dest.ts_addr.offset = 0;
 233       clr.dest.ts_addr.flags = ETNA_RELOC_WRITE;
 234       clr.dest.ts_clear_value[0] = new_clear_value;
 235       clr.dest.ts_clear_value[1] = new_clear_value;
 236       clr.dest.ts_mode = surf->level->ts_mode;
 237       clr.dest.ts_compress_fmt = surf->level->ts_compress_fmt;
 238    }
 239
 240    clr.clear_value[0] = new_clear_value;
 241    clr.clear_value[1] = new_clear_value;
 242    clr.clear_bits[0] = 0xffffffff; /* TODO: Might want to clear only specific channels? */
 243    clr.clear_bits[1] = 0xffffffff;
 244    clr.rect_x = 0; /* What about scissors? */
 245    clr.rect_y = 0;
 246    clr.rect_w = surf->surf.width;
 247    clr.rect_h = surf->surf.height;
 248
 249    emit_blt_clearimage(ctx->stream, &clr);
 250
 251    /* This made the TS valid */
 252    if (surf->surf.ts_size) {
 253       ctx->framebuffer.TS_COLOR_CLEAR_VALUE = new_clear_value;
 254       surf->level->ts_valid = true;
 255    }
 256
 257    surf->level->clear_value = new_clear_value;
 258    resource_written(ctx, surf->base.texture);
 259    etna_resource(surf->base.texture)->seqno++;
 260 }
 261
 262 static void
 263 etna_blit_clear_zs_blt(struct pipe_context *pctx, struct pipe_surface *dst,
 264                    unsigned buffers, double depth, unsigned stencil)
 265 {
 266    struct etna_context *ctx = etna_context(pctx);
 267    struct etna_surface *surf = etna_surface(dst);
 268    uint32_t new_clear_value = translate_clear_depth_stencil(surf->base.format, depth, stencil);
 269    uint32_t new_clear_bits = 0, clear_bits_depth, clear_bits_stencil;
 270
 271    /* Get the channels to clear */
 272    switch (surf->base.format) {
 273    case PIPE_FORMAT_Z16_UNORM:
 274    case PIPE_FORMAT_X8Z24_UNORM:
 275       clear_bits_depth = 0xffffffff;
 276       clear_bits_stencil = 0x00000000;
 277       break;
 278    case PIPE_FORMAT_S8_UINT_Z24_UNORM:
 279       clear_bits_depth = 0xffffff00;
 280       clear_bits_stencil = 0x000000ff;
 281       break;
 282    default:
 283       clear_bits_depth = clear_bits_stencil = 0xffffffff;
 284       break;
 285    }
 286
 287    if (buffers & PIPE_CLEAR_DEPTH)
 288       new_clear_bits |= clear_bits_depth;
 289    if (buffers & PIPE_CLEAR_STENCIL)
 290       new_clear_bits |= clear_bits_stencil;
 291
 292    /* TODO unduplicate this */
 293    struct etna_resource *res = etna_resource(surf->base.texture);
 294    struct blt_clear_op clr = {};
 295    clr.dest.addr.bo = res->bo;
 296    clr.dest.addr.offset = surf->surf.offset;
 297    clr.dest.addr.flags = ETNA_RELOC_WRITE;
 298    clr.dest.bpp = util_format_get_blocksize(surf->base.format);
 299    clr.dest.stride = surf->surf.stride;
 300    clr.dest.tiling = res->layout;
 301
 302    if (surf->surf.ts_size) {
 303       clr.dest.use_ts = 1;
 304       clr.dest.ts_addr.bo = res->ts_bo;
 305       clr.dest.ts_addr.offset = 0;
 306       clr.dest.ts_addr.flags = ETNA_RELOC_WRITE;
 307       clr.dest.ts_clear_value[0] = new_clear_value;
 308       clr.dest.ts_clear_value[1] = new_clear_value;
 309       clr.dest.ts_mode = surf->level->ts_mode;
 310       clr.dest.ts_compress_fmt = surf->level->ts_compress_fmt;
 311    }
 312
 313    clr.clear_value[0] = new_clear_value;
 314    clr.clear_value[1] = new_clear_value;
 315    clr.clear_bits[0] = new_clear_bits;
 316    clr.clear_bits[1] = new_clear_bits;
 317    clr.rect_x = 0; /* What about scissors? */
 318    clr.rect_y = 0;
 319    clr.rect_w = surf->surf.width;
 320    clr.rect_h = surf->surf.height;
 321
 322    emit_blt_clearimage(ctx->stream, &clr);
 323
 324    /* This made the TS valid */
 325    if (surf->surf.ts_size) {
 326       ctx->framebuffer.TS_DEPTH_CLEAR_VALUE = new_clear_value;
 327       surf->level->ts_valid = true;
 328    }
 329
 330    surf->level->clear_value = new_clear_value;
 331    resource_written(ctx, surf->base.texture);
 332    etna_resource(surf->base.texture)->seqno++;
 333 }
 334
 335 static void
 336 etna_clear_blt(struct pipe_context *pctx, unsigned buffers,
 337            const union pipe_color_union *color, double depth, unsigned stencil)
 338 {
 339    struct etna_context *ctx = etna_context(pctx);
 340    mtx_lock(&ctx->lock);
 341
 342    etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, 0x00000c23);
 343    etna_set_state(ctx->stream, VIVS_TS_FLUSH_CACHE, VIVS_TS_FLUSH_CACHE_FLUSH);
 344
 345    if (buffers & PIPE_CLEAR_COLOR) {
 346       for (int idx = 0; idx < ctx->framebuffer_s.nr_cbufs; ++idx) {
 347          etna_blit_clear_color_blt(pctx, ctx->framebuffer_s.cbufs[idx],
 348                                &color[idx]);
 349       }
 350    }
 351
 352    if ((buffers & PIPE_CLEAR_DEPTHSTENCIL) && ctx->framebuffer_s.zsbuf != NULL)
 353       etna_blit_clear_zs_blt(pctx, ctx->framebuffer_s.zsbuf, buffers, depth, stencil);
 354
 355    etna_stall(ctx->stream, SYNC_RECIPIENT_RA, SYNC_RECIPIENT_BLT);
 356
 357    if ((buffers & PIPE_CLEAR_COLOR) && (buffers & PIPE_CLEAR_DEPTH))
 358       etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, 0x00000c23);
 359    else
 360       etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, 0x00000002);
 361    mtx_unlock(&ctx->lock);
 362 }
 363
 364 static bool
 365 etna_try_blt_blit(struct pipe_context *pctx,
 366                  const struct pipe_blit_info *blit_info)
 367 {
 368    struct etna_context *ctx = etna_context(pctx);
 369    struct etna_resource *src = etna_resource(blit_info->src.resource);
 370    struct etna_resource *dst = etna_resource(blit_info->dst.resource);
 371    int msaa_xscale = 1, msaa_yscale = 1;
 372
 373    /* Ensure that the level is valid */
 374    assert(blit_info->src.level <= src->base.last_level);
 375    assert(blit_info->dst.level <= dst->base.last_level);
 376
 377    if (!translate_samples_to_xyscale(src->base.nr_samples, &msaa_xscale, &msaa_yscale, NULL))
 378       return false;
 379
 380    /* The width/height are in pixels; they do not change as a result of
 381     * multi-sampling. So, when blitting from a 4x multisampled surface
 382     * to a non-multisampled surface, the width and height will be
 383     * identical. As we do not support scaling, reject different sizes.
 384     * TODO: could handle 2x downsample here with emit_blt_genmipmaps */
 385    if (blit_info->dst.box.width != blit_info->src.box.width ||
 386        blit_info->dst.box.height != abs(blit_info->src.box.height)) { /* allow y flip for glTexImage2D */
 387       DBG("scaling requested: source %dx%d destination %dx%d",
 388           blit_info->src.box.width, blit_info->src.box.height,
 389           blit_info->dst.box.width, blit_info->dst.box.height);
 390       return false;
 391    }
 392
 393    /* No masks - not sure if BLT can copy individual channels */
 394    unsigned mask = util_format_get_mask(blit_info->dst.format);
 395    if ((blit_info->mask & mask) != mask) {
 396       DBG("sub-mask requested: 0x%02x vs format mask 0x%02x", blit_info->mask, mask);
 397       return false;
 398    }
 399
 400    /* Only support same format (used tiling/detiling) blits for now.
 401     * TODO: figure out which different-format blits are possible and test them
 402     *  - need to use correct swizzle
 403     *  - set sRGB bits correctly
 404     *  - avoid trying to convert between float/int formats?
 405     */
 406    if (blit_info->src.format != blit_info->dst.format)
 407       return false;
 408
 409    uint32_t format = etna_compatible_blt_format(blit_info->dst.format);
 410    if (format == ETNA_NO_MATCH)
 411       return false;
 412
 413    if (blit_info->scissor_enable ||
 414        blit_info->dst.box.depth != blit_info->src.box.depth ||
 415        blit_info->dst.box.depth != 1) {
 416       return false;
 417    }
 418
 419    struct etna_resource_level *src_lev = &src->levels[blit_info->src.level];
 420    struct etna_resource_level *dst_lev = &dst->levels[blit_info->dst.level];
 421
 422    /* if we asked for in-place resolve, return immediately if ts isn't valid
 423     * do this check separately because it applies when compression is used, but
 424     * we can't use inplace resolve path with compression
 425     */
 426    if (src == dst) {
 427       assert(!memcmp(&blit_info->src, &blit_info->dst, sizeof(blit_info->src)));
 428       if (!src_lev->ts_size || !src_lev->ts_valid) /* No TS, no worries */
 429          return true;
 430    }
 431
 432    mtx_lock(&ctx->lock);
 433    /* Kick off BLT here */
 434    if (src == dst && src_lev->ts_compress_fmt < 0) {
 435       /* Resolve-in-place */
 436       struct blt_inplace_op op = {};
 437
 438       op.addr.bo = src->bo;
 439       op.addr.offset = src_lev->offset + blit_info->src.box.z * src_lev->layer_stride;
 440       op.addr.flags = ETNA_RELOC_READ | ETNA_RELOC_WRITE;
 441       op.ts_addr.bo = src->ts_bo;
 442       op.ts_addr.offset = src_lev->ts_offset + blit_info->src.box.z * src_lev->ts_layer_stride;
 443       op.ts_addr.flags = ETNA_RELOC_READ;
 444       op.ts_clear_value[0] = src_lev->clear_value;
 445       op.ts_clear_value[1] = src_lev->clear_value;
 446       op.ts_mode = src_lev->ts_mode;
 447       op.num_tiles = DIV_ROUND_UP(src_lev->size, src_lev->ts_mode ? 256 : 128);
 448       op.bpp = util_format_get_blocksize(src->base.format);
 449
 450       etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, 0x00000c23);
 451       etna_set_state(ctx->stream, VIVS_TS_FLUSH_CACHE, 0x00000001);
 452       emit_blt_inplace(ctx->stream, &op);
 453    } else {
 454       /* Copy op */
 455       struct blt_imgcopy_op op = {};
 456
 457       op.src.addr.bo = src->bo;
 458       op.src.addr.offset = src_lev->offset + blit_info->src.box.z * src_lev->layer_stride;
 459       op.src.addr.flags = ETNA_RELOC_READ;
 460       op.src.format = format;
 461       op.src.stride = src_lev->stride;
 462       op.src.tiling = src->layout;
 463       for (unsigned x=0; x<4; ++x)
 464          op.src.swizzle[x] = x;
 465
 466       if (src_lev->ts_size && src_lev->ts_valid) {
 467          op.src.use_ts = 1;
 468          op.src.ts_addr.bo = src->ts_bo;
 469          op.src.ts_addr.offset = src_lev->ts_offset + blit_info->src.box.z * src_lev->ts_layer_stride;
 470          op.src.ts_addr.flags = ETNA_RELOC_READ;
 471          op.src.ts_clear_value[0] = src_lev->clear_value;
 472          op.src.ts_clear_value[1] = src_lev->clear_value;
 473          op.src.ts_mode = src_lev->ts_mode;
 474          op.src.ts_compress_fmt = src_lev->ts_compress_fmt;
 475       }
 476
 477       op.dest.addr.bo = dst->bo;
 478       op.dest.addr.offset = dst_lev->offset + blit_info->dst.box.z * dst_lev->layer_stride;
 479       op.dest.addr.flags = ETNA_RELOC_WRITE;
 480       op.dest.format = format;
 481       op.dest.stride = dst_lev->stride;
 482       op.dest.tiling = dst->layout;
 483       for (unsigned x=0; x<4; ++x)
 484          op.dest.swizzle[x] = x;
 485
 486       op.dest_x = blit_info->dst.box.x;
 487       op.dest_y = blit_info->dst.box.y;
 488       op.src_x = blit_info->src.box.x;
 489       op.src_y = blit_info->src.box.y;
 490       op.rect_w = blit_info->dst.box.width;
 491       op.rect_h = blit_info->dst.box.height;
 492
 493       if (blit_info->src.box.height < 0) { /* flipped? fix up base y */
 494          op.flip_y = 1;
 495          op.src_y += blit_info->src.box.height;
 496       }
 497
 498       assert(op.src_x < src_lev->padded_width);
 499       assert(op.src_y < src_lev->padded_height);
 500       assert((op.src_x + op.rect_w) <= src_lev->padded_width);
 501       assert((op.src_y + op.rect_h) <= src_lev->padded_height);
 502       assert(op.dest_x < dst_lev->padded_width);
 503       assert(op.dest_y < dst_lev->padded_height);
 504       assert((op.dest_x + op.rect_w) <= dst_lev->padded_width);
 505       assert((op.dest_y + op.rect_h) <= dst_lev->padded_height);
 506
 507       etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, 0x00000c23);
 508       etna_set_state(ctx->stream, VIVS_TS_FLUSH_CACHE, 0x00000001);
 509       emit_blt_copyimage(ctx->stream, &op);
 510    }
 511
 512    /* Make FE wait for BLT, in case we want to do something with the image next.
 513     * This probably shouldn't be here, and depend on what is done with the resource.
 514     */
 515    etna_stall(ctx->stream, SYNC_RECIPIENT_FE, SYNC_RECIPIENT_BLT);
 516    etna_set_state(ctx->stream, VIVS_GL_FLUSH_CACHE, 0x00000c23);
 517
 518    resource_read(ctx, &src->base);
 519    resource_written(ctx, &dst->base);
 520
 521    dst->seqno++;
 522    dst_lev->ts_valid = false;
 523    mtx_unlock(&ctx->lock);
 524
 525    return true;
 526 }
 527
 528 static void
 529 etna_blit_blt(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
 530 {
 531    struct etna_context *ctx = etna_context(pctx);
 532    struct pipe_blit_info info = *blit_info;
 533
 534    if (info.src.resource->nr_samples > 1 &&
 535        info.dst.resource->nr_samples <= 1 &&
 536        !util_format_is_depth_or_stencil(info.src.resource->format) &&
 537        !util_format_is_pure_integer(info.src.resource->format)) {
 538       DBG("color resolve unimplemented");
 539       return;
 540    }
 541
 542    if (etna_try_blt_blit(pctx, blit_info))
 543       return;
 544
 545    if (util_try_blit_via_copy_region(pctx, blit_info))
 546       return;
 547
 548    if (info.mask & PIPE_MASK_S) {
 549       DBG("cannot blit stencil, skipping");
 550       info.mask &= ~PIPE_MASK_S;
 551    }
 552
 553    if (!util_blitter_is_blit_supported(ctx->blitter, &info)) {
 554       DBG("blit unsupported %s -> %s",
 555           util_format_short_name(info.src.resource->format),
 556           util_format_short_name(info.dst.resource->format));
 557       return;
 558    }
 559
 560    etna_blit_save_state(ctx);
 561    util_blitter_blit(ctx->blitter, &info);
 562 }
 563
 564 void
 565 etna_clear_blit_blt_init(struct pipe_context *pctx)
 566 {
 567    DBG("etnaviv: Using BLT blit engine");
 568    pctx->clear = etna_clear_blt;
 569    pctx->blit = etna_blit_blt;
 570 }