src/gallium/drivers/etnaviv/etnaviv_texture_desc.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
  28 #include "etnaviv_texture_desc.h"
  29
  30 #include "hw/common.xml.h"
  31 #include "hw/texdesc_3d.xml.h"
  32
  33 #include "etnaviv_clear_blit.h"
  34 #include "etnaviv_context.h"
  35 #include "etnaviv_emit.h"
  36 #include "etnaviv_format.h"
  37 #include "etnaviv_translate.h"
  38 #include "etnaviv_texture.h"
  39 #include "util/u_inlines.h"
  40 #include "util/u_memory.h"
  41
  42 #include <drm_fourcc.h>
  43
  44 struct etna_sampler_state_desc {
  45    struct pipe_sampler_state base;
  46    uint32_t SAMP_CTRL0;
  47    uint32_t SAMP_CTRL1;
  48    uint32_t SAMP_LOD_MINMAX;
  49    uint32_t SAMP_LOD_BIAS;
  50 };
  51
  52 static inline struct etna_sampler_state_desc *
  53 etna_sampler_state_desc(struct pipe_sampler_state *samp)
  54 {
  55    return (struct etna_sampler_state_desc *)samp;
  56 }
  57
  58 struct etna_sampler_view_desc {
  59    struct pipe_sampler_view base;
  60    /* format-dependent merged with sampler state */
  61    uint32_t SAMP_CTRL0;
  62    uint32_t SAMP_CTRL1;
  63
  64    struct etna_bo *bo;
  65    struct etna_reloc DESC_ADDR;
  66    struct etna_sampler_ts ts;
  67 };
  68
  69 static inline struct etna_sampler_view_desc *
  70 etna_sampler_view_desc(struct pipe_sampler_view *view)
  71 {
  72    return (struct etna_sampler_view_desc *)view;
  73 }
  74
  75 static void *
  76 etna_create_sampler_state_desc(struct pipe_context *pipe,
  77                           const struct pipe_sampler_state *ss)
  78 {
  79    struct etna_sampler_state_desc *cs = CALLOC_STRUCT(etna_sampler_state_desc);
  80
  81    if (!cs)
  82       return NULL;
  83
  84    cs->SAMP_CTRL0 =
  85       VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_UWRAP(translate_texture_wrapmode(ss->wrap_s)) |
  86       VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_VWRAP(translate_texture_wrapmode(ss->wrap_t)) |
  87       VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_WWRAP(translate_texture_wrapmode(ss->wrap_r)) |
  88       VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_MIN(translate_texture_filter(ss->min_img_filter)) |
  89       VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_MIP(translate_texture_mipfilter(ss->min_mip_filter)) |
  90       VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_MAG(translate_texture_filter(ss->mag_img_filter)) |
  91       VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_UNK21;
  92       /* no ROUND_UV bit? */
  93    cs->SAMP_CTRL1 = VIVS_NTE_DESCRIPTOR_SAMP_CTRL1_UNK1;
  94    uint32_t min_lod_fp8 = MIN2(etna_float_to_fixp88(ss->min_lod), 0xfff);
  95    uint32_t max_lod_fp8 = MIN2(etna_float_to_fixp88(ss->max_lod), 0xfff);
  96    uint32_t max_lod_min = ss->min_img_filter != ss->mag_img_filter ? 4 : 0;
  97
  98    if (ss->min_mip_filter != PIPE_TEX_MIPFILTER_NONE) {
  99       cs->SAMP_LOD_MINMAX =
 100          VIVS_NTE_DESCRIPTOR_SAMP_LOD_MINMAX_MAX(MAX2(max_lod_fp8, max_lod_min)) |
 101          VIVS_NTE_DESCRIPTOR_SAMP_LOD_MINMAX_MIN(min_lod_fp8);
 102    } else {
 103       cs->SAMP_LOD_MINMAX =
 104          VIVS_NTE_DESCRIPTOR_SAMP_LOD_MINMAX_MAX(MAX2(max_lod_fp8, max_lod_min)) |
 105          VIVS_NTE_DESCRIPTOR_SAMP_LOD_MINMAX_MIN(min_lod_fp8);
 106    }
 107    cs->SAMP_LOD_BIAS =
 108       VIVS_NTE_DESCRIPTOR_SAMP_LOD_BIAS_BIAS(etna_float_to_fixp88(ss->lod_bias)) |
 109       COND(ss->lod_bias != 0.0, VIVS_NTE_DESCRIPTOR_SAMP_LOD_BIAS_ENABLE);
 110
 111    return cs;
 112 }
 113
 114 static void
 115 etna_delete_sampler_state_desc(struct pipe_context *pctx, void *ss)
 116 {
 117    FREE(ss);
 118 }
 119
 120 static struct pipe_sampler_view *
 121 etna_create_sampler_view_desc(struct pipe_context *pctx, struct pipe_resource *prsc,
 122                          const struct pipe_sampler_view *so)
 123 {
 124    const struct util_format_description *desc = util_format_description(so->format);
 125    struct etna_sampler_view_desc *sv = CALLOC_STRUCT(etna_sampler_view_desc);
 126    struct etna_context *ctx = etna_context(pctx);
 127    const uint32_t format = translate_texture_format(so->format);
 128    const bool ext = !!(format & EXT_FORMAT);
 129    const bool astc = !!(format & ASTC_FORMAT);
 130    const uint32_t swiz = get_texture_swiz(so->format, so->swizzle_r,
 131                                           so->swizzle_g, so->swizzle_b,
 132                                           so->swizzle_a);
 133
 134    if (!sv)
 135       return NULL;
 136
 137    struct etna_resource *res = etna_texture_handle_incompatible(pctx, prsc);
 138    if (!res) {
 139       free(sv);
 140       return NULL;
 141    }
 142
 143    sv->base = *so;
 144    pipe_reference_init(&sv->base.reference, 1);
 145    sv->base.texture = NULL;
 146    pipe_resource_reference(&sv->base.texture, prsc);
 147    sv->base.context = pctx;
 148
 149    /* Determine whether target supported */
 150    uint32_t target_hw = translate_texture_target(sv->base.target);
 151    if (target_hw == ETNA_NO_MATCH) {
 152       BUG("Unhandled texture target");
 153       free(sv);
 154       return NULL;
 155    }
 156
 157    /* Texture descriptor sampler bits */
 158    if (util_format_is_srgb(so->format))
 159       sv->SAMP_CTRL1 |= VIVS_NTE_DESCRIPTOR_SAMP_CTRL1_SRGB;
 160
 161    if (texture_use_int_filter(so, true))
 162       sv->SAMP_CTRL0 |= VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_INT_FILTER;
 163
 164    /* Create texture descriptor */
 165    sv->bo = etna_bo_new(ctx->screen->dev, 0x100, DRM_ETNA_GEM_CACHE_WC);
 166    if (!sv->bo)
 167       goto error;
 168
 169    uint32_t *buf = etna_bo_map(sv->bo);
 170    etna_bo_cpu_prep(sv->bo, DRM_ETNA_PREP_WRITE);
 171    memset(buf, 0, 0x100);
 172
 173    /** GC7000 needs the size of the BASELOD level */
 174    uint32_t base_width = u_minify(res->base.width0, sv->base.u.tex.first_level);
 175    uint32_t base_height = u_minify(res->base.height0, sv->base.u.tex.first_level);
 176    uint32_t base_depth = u_minify(res->base.depth0, sv->base.u.tex.first_level);
 177    bool is_array = false;
 178    bool sint = util_format_is_pure_sint(so->format);
 179
 180    if (sv->base.target == PIPE_TEXTURE_1D_ARRAY) {
 181       is_array = true;
 182       base_height = res->base.array_size;
 183    } else if (sv->base.target == PIPE_TEXTURE_2D_ARRAY) {
 184       is_array = true;
 185       base_depth = res->base.array_size;
 186    }
 187
 188 #define DESC_SET(x, y) buf[(TEXDESC_##x)>>2] = (y)
 189    DESC_SET(CONFIG0, COND(!ext && !astc, VIVS_TE_SAMPLER_CONFIG0_FORMAT(format))
 190                    | VIVS_TE_SAMPLER_CONFIG0_TYPE(target_hw) |
 191                    COND(res->layout == ETNA_LAYOUT_LINEAR && !util_format_is_compressed(so->format),
 192                         VIVS_TE_SAMPLER_CONFIG0_ADDRESSING_MODE(TEXTURE_ADDRESSING_MODE_LINEAR)));
 193    DESC_SET(CONFIG1, COND(ext, VIVS_TE_SAMPLER_CONFIG1_FORMAT_EXT(format)) |
 194                      COND(astc, VIVS_TE_SAMPLER_CONFIG1_FORMAT_EXT(TEXTURE_FORMAT_EXT_ASTC)) |
 195                      COND(is_array, VIVS_TE_SAMPLER_CONFIG1_TEXTURE_ARRAY) |
 196                      VIVS_TE_SAMPLER_CONFIG1_HALIGN(res->halign) | swiz);
 197    DESC_SET(CONFIG2, 0x00030000 |
 198          COND(sint && desc->channel[0].size == 8, TE_SAMPLER_CONFIG2_SIGNED_INT8) |
 199          COND(sint && desc->channel[0].size == 16, TE_SAMPLER_CONFIG2_SIGNED_INT16));
 200    DESC_SET(LINEAR_STRIDE, res->levels[0].stride);
 201    DESC_SET(VOLUME, etna_log2_fixp88(base_depth));
 202    DESC_SET(SLICE, res->levels[0].layer_stride);
 203    DESC_SET(3D_CONFIG, VIVS_TE_SAMPLER_3D_CONFIG_DEPTH(base_depth));
 204    DESC_SET(ASTC0, COND(astc, VIVS_NTE_SAMPLER_ASTC0_ASTC_FORMAT(format)) |
 205                    VIVS_NTE_SAMPLER_ASTC0_UNK8(0xc) |
 206                    VIVS_NTE_SAMPLER_ASTC0_UNK16(0xc) |
 207                    VIVS_NTE_SAMPLER_ASTC0_UNK24(0xc));
 208    DESC_SET(BASELOD, TEXDESC_BASELOD_BASELOD(sv->base.u.tex.first_level) |
 209                      TEXDESC_BASELOD_MAXLOD(MIN2(sv->base.u.tex.last_level, res->base.last_level)));
 210    DESC_SET(LOG_SIZE_EXT, TEXDESC_LOG_SIZE_EXT_WIDTH(etna_log2_fixp88(base_width)) |
 211                           TEXDESC_LOG_SIZE_EXT_HEIGHT(etna_log2_fixp88(base_height)));
 212    DESC_SET(SIZE, VIVS_TE_SAMPLER_SIZE_WIDTH(base_width) |
 213                   VIVS_TE_SAMPLER_SIZE_HEIGHT(base_height));
 214    for (int lod = 0; lod <= res->base.last_level; ++lod)
 215       DESC_SET(LOD_ADDR(lod), etna_bo_gpu_va(res->bo) + res->levels[lod].offset);
 216 #undef DESC_SET
 217
 218    etna_bo_cpu_fini(sv->bo);
 219
 220    sv->DESC_ADDR.bo = sv->bo;
 221    sv->DESC_ADDR.offset = 0;
 222    sv->DESC_ADDR.flags = ETNA_RELOC_READ;
 223
 224    return &sv->base;
 225 error:
 226    free(sv);
 227    return NULL;
 228 }
 229
 230 static void
 231 etna_sampler_view_update_descriptor(struct etna_context *ctx,
 232                                     struct etna_cmd_stream *stream,
 233                                     struct etna_sampler_view_desc *sv)
 234 {
 235    /* TODO: this should instruct the kernel to update the descriptor when the
 236     * bo is submitted. For now, just prevent the bo from being freed
 237     * while it is in use indirectly.
 238     */
 239    struct etna_resource *res = etna_resource(sv->base.texture);
 240    if (res->texture) {
 241       res = etna_resource(res->texture);
 242    }
 243    /* No need to ref LOD levels individually as they'll always come from the same bo */
 244    etna_cmd_stream_ref_bo(stream, res->bo, ETNA_RELOC_READ);
 245 }
 246
 247 static void
 248 etna_sampler_view_desc_destroy(struct pipe_context *pctx,
 249                           struct pipe_sampler_view *so)
 250 {
 251    struct etna_sampler_view_desc *sv = etna_sampler_view_desc(so);
 252    pipe_resource_reference(&sv->base.texture, NULL);
 253    etna_bo_del(sv->bo);
 254    FREE(sv);
 255 }
 256
 257 static void
 258 etna_emit_texture_desc(struct etna_context *ctx)
 259 {
 260    struct etna_cmd_stream *stream = ctx->stream;
 261    uint32_t active_samplers = active_samplers_bits(ctx);
 262    uint32_t dirty = ctx->dirty;
 263
 264    if (unlikely(dirty & ETNA_DIRTY_SAMPLER_VIEWS)) {
 265       for (int x = 0; x < VIVS_TS_SAMPLER__LEN; ++x) {
 266          if ((1 << x) & active_samplers) {
 267             struct etna_sampler_view_desc *sv = etna_sampler_view_desc(ctx->sampler_view[x]);
 268             struct etna_resource *res = etna_resource(sv->base.texture);
 269             struct etna_reloc LOD_ADDR_0;
 270
 271             if (!sv->ts.enable)
 272                continue;
 273
 274             etna_set_state(stream, VIVS_TS_SAMPLER_CONFIG(x), sv->ts.TS_SAMPLER_CONFIG);
 275             etna_set_state_reloc(stream, VIVS_TS_SAMPLER_STATUS_BASE(x), &sv->ts.TS_SAMPLER_STATUS_BASE);
 276             etna_set_state(stream, VIVS_TS_SAMPLER_CLEAR_VALUE(x), sv->ts.TS_SAMPLER_CLEAR_VALUE);
 277             etna_set_state(stream, VIVS_TS_SAMPLER_CLEAR_VALUE2(x), sv->ts.TS_SAMPLER_CLEAR_VALUE2);
 278
 279             LOD_ADDR_0.bo = res->bo;
 280             LOD_ADDR_0.offset = res->levels[0].offset;
 281             LOD_ADDR_0.flags = ETNA_RELOC_READ;
 282
 283             etna_set_state_reloc(stream, VIVS_TS_SAMPLER_SURFACE_BASE(x), &LOD_ADDR_0);
 284          }
 285       }
 286    }
 287
 288    if (unlikely(dirty & (ETNA_DIRTY_SAMPLERS | ETNA_DIRTY_SAMPLER_VIEWS))) {
 289       for (int x = 0; x < PIPE_MAX_SAMPLERS; ++x) {
 290          if ((1 << x) & active_samplers) {
 291             struct etna_sampler_state_desc *ss = etna_sampler_state_desc(ctx->sampler[x]);
 292             struct etna_sampler_view_desc *sv = etna_sampler_view_desc(ctx->sampler_view[x]);
 293             etna_set_state(stream, VIVS_NTE_DESCRIPTOR_TX_CTRL(x),
 294                COND(sv->ts.enable, VIVS_NTE_DESCRIPTOR_TX_CTRL_TS_ENABLE) |
 295                VIVS_NTE_DESCRIPTOR_TX_CTRL_TS_MODE(sv->ts.mode) |
 296                VIVS_NTE_DESCRIPTOR_TX_CTRL_TS_INDEX(x));
 297             etna_set_state(stream, VIVS_NTE_DESCRIPTOR_SAMP_CTRL0(x), ss->SAMP_CTRL0 | sv->SAMP_CTRL0);
 298             etna_set_state(stream, VIVS_NTE_DESCRIPTOR_SAMP_CTRL1(x), ss->SAMP_CTRL1 | sv->SAMP_CTRL1);
 299             etna_set_state(stream, VIVS_NTE_DESCRIPTOR_SAMP_LOD_MINMAX(x), ss->SAMP_LOD_MINMAX);
 300             etna_set_state(stream, VIVS_NTE_DESCRIPTOR_SAMP_LOD_BIAS(x), ss->SAMP_LOD_BIAS);
 301          }
 302       }
 303    }
 304
 305    if (unlikely(dirty & ETNA_DIRTY_SAMPLER_VIEWS)) {
 306       /* Set texture descriptors */
 307       for (int x = 0; x < PIPE_MAX_SAMPLERS; ++x) {
 308          if ((1 << x) & ctx->dirty_sampler_views) {
 309             if ((1 << x) & active_samplers) {
 310                struct etna_sampler_view_desc *sv = etna_sampler_view_desc(ctx->sampler_view[x]);
 311                etna_sampler_view_update_descriptor(ctx, stream, sv);
 312                etna_set_state_reloc(stream, VIVS_NTE_DESCRIPTOR_ADDR(x), &sv->DESC_ADDR);
 313             } else {
 314                /* dummy texture descriptors for unused samplers */
 315                etna_set_state_reloc(stream, VIVS_NTE_DESCRIPTOR_ADDR(x), &ctx->DUMMY_DESC_ADDR);
 316             }
 317          }
 318       }
 319    }
 320
 321    if (unlikely(dirty & ETNA_DIRTY_SAMPLER_VIEWS)) {
 322       /* Invalidate all dirty sampler views.
 323        */
 324       for (int x = 0; x < PIPE_MAX_SAMPLERS; ++x) {
 325          if ((1 << x) & ctx->dirty_sampler_views) {
 326             etna_set_state(stream, VIVS_NTE_DESCRIPTOR_INVALIDATE,
 327                   VIVS_NTE_DESCRIPTOR_INVALIDATE_UNK29 |
 328                   VIVS_NTE_DESCRIPTOR_INVALIDATE_IDX(x));
 329          }
 330       }
 331    }
 332 }
 333
 334 static struct etna_sampler_ts*
 335 etna_ts_for_sampler_view_state(struct pipe_sampler_view *pview)
 336 {
 337    struct etna_sampler_view_desc *sv = etna_sampler_view_desc(pview);
 338    return &sv->ts;
 339 }
 340
 341 void
 342 etna_texture_desc_init(struct pipe_context *pctx)
 343 {
 344    struct etna_context *ctx = etna_context(pctx);
 345    DBG("etnaviv: Using descriptor-based texturing\n");
 346    ctx->base.create_sampler_state = etna_create_sampler_state_desc;
 347    ctx->base.delete_sampler_state = etna_delete_sampler_state_desc;
 348    ctx->base.create_sampler_view = etna_create_sampler_view_desc;
 349    ctx->base.sampler_view_destroy = etna_sampler_view_desc_destroy;
 350    ctx->emit_texture_state = etna_emit_texture_desc;
 351    ctx->ts_for_sampler_view = etna_ts_for_sampler_view_state;
 352 }
 353