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 static void *
  45 etna_create_sampler_state_desc(struct pipe_context *pipe,
  46                           const struct pipe_sampler_state *ss)
  47 {
  48    struct etna_sampler_state_desc *cs = CALLOC_STRUCT(etna_sampler_state_desc);
  49
  50    if (!cs)
  51       return NULL;
  52
  53    cs->SAMP_CTRL0 =
  54       VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_UWRAP(translate_texture_wrapmode(ss->wrap_s)) |
  55       VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_VWRAP(translate_texture_wrapmode(ss->wrap_t)) |
  56       VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_WWRAP(translate_texture_wrapmode(ss->wrap_r)) |
  57       VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_MIN(translate_texture_filter(ss->min_img_filter)) |
  58       VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_MIP(translate_texture_mipfilter(ss->min_mip_filter)) |
  59       VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_MAG(translate_texture_filter(ss->mag_img_filter)) |
  60       VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_UNK21;
  61       /* no ROUND_UV bit? */
  62    cs->SAMP_CTRL1 = VIVS_NTE_DESCRIPTOR_SAMP_CTRL1_UNK1;
  63    uint32_t min_lod_fp8 = MIN2(etna_float_to_fixp88(ss->min_lod), 0xfff);
  64    uint32_t max_lod_fp8 = MIN2(etna_float_to_fixp88(ss->max_lod), 0xfff);
  65    uint32_t max_lod_min = ss->min_img_filter != ss->mag_img_filter ? 4 : 0;
  66
  67    if (ss->min_mip_filter != PIPE_TEX_MIPFILTER_NONE) {
  68       cs->SAMP_LOD_MINMAX =
  69          VIVS_NTE_DESCRIPTOR_SAMP_LOD_MINMAX_MAX(MAX2(max_lod_fp8, max_lod_min)) |
  70          VIVS_NTE_DESCRIPTOR_SAMP_LOD_MINMAX_MIN(min_lod_fp8);
  71    } else {
  72       cs->SAMP_LOD_MINMAX =
  73          VIVS_NTE_DESCRIPTOR_SAMP_LOD_MINMAX_MAX(MAX2(max_lod_fp8, max_lod_min)) |
  74          VIVS_NTE_DESCRIPTOR_SAMP_LOD_MINMAX_MIN(min_lod_fp8);
  75    }
  76    cs->SAMP_LOD_BIAS =
  77       VIVS_NTE_DESCRIPTOR_SAMP_LOD_BIAS_BIAS(etna_float_to_fixp88(ss->lod_bias)) |
  78       COND(ss->lod_bias != 0.0, VIVS_NTE_DESCRIPTOR_SAMP_LOD_BIAS_ENABLE);
  79
  80    return cs;
  81 }
  82
  83 static void
  84 etna_delete_sampler_state_desc(struct pipe_context *pctx, void *ss)
  85 {
  86    FREE(ss);
  87 }
  88
  89 static struct pipe_sampler_view *
  90 etna_create_sampler_view_desc(struct pipe_context *pctx, struct pipe_resource *prsc,
  91                          const struct pipe_sampler_view *so)
  92 {
  93    const struct util_format_description *desc = util_format_description(so->format);
  94    struct etna_sampler_view_desc *sv = CALLOC_STRUCT(etna_sampler_view_desc);
  95    struct etna_context *ctx = etna_context(pctx);
  96    const uint32_t format = translate_texture_format(so->format);
  97    const bool ext = !!(format & EXT_FORMAT);
  98    const bool astc = !!(format & ASTC_FORMAT);
  99    const uint32_t swiz = get_texture_swiz(so->format, so->swizzle_r,
 100                                           so->swizzle_g, so->swizzle_b,
 101                                           so->swizzle_a);
 102
 103    if (!sv)
 104       return NULL;
 105
 106    struct etna_resource *res = etna_texture_handle_incompatible(pctx, prsc);
 107    if (!res) {
 108       free(sv);
 109       return NULL;
 110    }
 111
 112    sv->base = *so;
 113    pipe_reference_init(&sv->base.reference, 1);
 114    sv->base.texture = NULL;
 115    pipe_resource_reference(&sv->base.texture, prsc);
 116    sv->base.context = pctx;
 117
 118    /* Determine whether target supported */
 119    uint32_t target_hw = translate_texture_target(sv->base.target);
 120    if (target_hw == ETNA_NO_MATCH) {
 121       BUG("Unhandled texture target");
 122       free(sv);
 123       return NULL;
 124    }
 125
 126    /* Texture descriptor sampler bits */
 127    if (util_format_is_srgb(so->format))
 128       sv->SAMP_CTRL1 |= VIVS_NTE_DESCRIPTOR_SAMP_CTRL1_SRGB;
 129
 130    if (!util_format_is_float(so->format) && so->target != PIPE_TEXTURE_3D)
 131       sv->SAMP_CTRL0 |= VIVS_NTE_DESCRIPTOR_SAMP_CTRL0_INT_FILTER;
 132
 133    /* Create texture descriptor */
 134    sv->bo = etna_bo_new(ctx->screen->dev, 0x100, DRM_ETNA_GEM_CACHE_WC);
 135    if (!sv->bo)
 136       goto error;
 137
 138    uint32_t *buf = etna_bo_map(sv->bo);
 139    etna_bo_cpu_prep(sv->bo, DRM_ETNA_PREP_WRITE);
 140    memset(buf, 0, 0x100);
 141
 142    /** GC7000 needs the size of the BASELOD level */
 143    uint32_t base_width = u_minify(res->base.width0, sv->base.u.tex.first_level);
 144    uint32_t base_height = u_minify(res->base.height0, sv->base.u.tex.first_level);
 145    uint32_t base_depth = u_minify(res->base.depth0, sv->base.u.tex.first_level);
 146    bool is_array = false;
 147    bool sint = util_format_is_pure_sint(so->format);
 148
 149    if (sv->base.target == PIPE_TEXTURE_1D_ARRAY) {
 150       is_array = true;
 151       base_height = res->base.array_size;
 152    } else if (sv->base.target == PIPE_TEXTURE_2D_ARRAY) {
 153       is_array = true;
 154       base_depth = res->base.array_size;
 155    }
 156
 157 #define DESC_SET(x, y) buf[(TEXDESC_##x)>>2] = (y)
 158    DESC_SET(CONFIG0, COND(!ext && !astc, VIVS_TE_SAMPLER_CONFIG0_FORMAT(format))
 159                    | VIVS_TE_SAMPLER_CONFIG0_TYPE(target_hw) |
 160                    COND(res->layout == ETNA_LAYOUT_LINEAR && !util_format_is_compressed(so->format),
 161                         VIVS_TE_SAMPLER_CONFIG0_ADDRESSING_MODE(TEXTURE_ADDRESSING_MODE_LINEAR)));
 162    DESC_SET(CONFIG1, COND(ext, VIVS_TE_SAMPLER_CONFIG1_FORMAT_EXT(format)) |
 163                      COND(astc, VIVS_TE_SAMPLER_CONFIG1_FORMAT_EXT(TEXTURE_FORMAT_EXT_ASTC)) |
 164                      COND(is_array, VIVS_TE_SAMPLER_CONFIG1_TEXTURE_ARRAY) |
 165                      VIVS_TE_SAMPLER_CONFIG1_HALIGN(res->halign) | swiz);
 166    DESC_SET(CONFIG2, 0x00030000 |
 167          COND(sint && desc->channel[0].size == 8, TE_SAMPLER_CONFIG2_SIGNED_INT8) |
 168          COND(sint && desc->channel[0].size == 16, TE_SAMPLER_CONFIG2_SIGNED_INT16));
 169    DESC_SET(LINEAR_STRIDE, res->levels[0].stride);
 170    DESC_SET(VOLUME, etna_log2_fixp88(base_depth));
 171    DESC_SET(SLICE, res->levels[0].layer_stride);
 172    DESC_SET(3D_CONFIG, VIVS_TE_SAMPLER_3D_CONFIG_DEPTH(base_depth));
 173    DESC_SET(ASTC0, COND(astc, VIVS_NTE_SAMPLER_ASTC0_ASTC_FORMAT(format)) |
 174                    VIVS_NTE_SAMPLER_ASTC0_UNK8(0xc) |
 175                    VIVS_NTE_SAMPLER_ASTC0_UNK16(0xc) |
 176                    VIVS_NTE_SAMPLER_ASTC0_UNK24(0xc));
 177    DESC_SET(BASELOD, TEXDESC_BASELOD_BASELOD(sv->base.u.tex.first_level) |
 178                      TEXDESC_BASELOD_MAXLOD(MIN2(sv->base.u.tex.last_level, res->base.last_level)));
 179    DESC_SET(LOG_SIZE_EXT, TEXDESC_LOG_SIZE_EXT_WIDTH(etna_log2_fixp88(base_width)) |
 180                           TEXDESC_LOG_SIZE_EXT_HEIGHT(etna_log2_fixp88(base_height)));
 181    DESC_SET(SIZE, VIVS_TE_SAMPLER_SIZE_WIDTH(base_width) |
 182                   VIVS_TE_SAMPLER_SIZE_HEIGHT(base_height));
 183    for (int lod = 0; lod <= res->base.last_level; ++lod)
 184       DESC_SET(LOD_ADDR(lod), etna_bo_gpu_va(res->bo) + res->levels[lod].offset);
 185 #undef DESC_SET
 186
 187    etna_bo_cpu_fini(sv->bo);
 188
 189    sv->DESC_ADDR.bo = sv->bo;
 190    sv->DESC_ADDR.offset = 0;
 191    sv->DESC_ADDR.flags = ETNA_RELOC_READ;
 192
 193    return &sv->base;
 194 error:
 195    free(sv);
 196    return NULL;
 197 }
 198
 199 static void
 200 etna_sampler_view_update_descriptor(struct etna_context *ctx,
 201                                     struct etna_cmd_stream *stream,
 202                                     struct etna_sampler_view_desc *sv)
 203 {
 204    /* TODO: this should instruct the kernel to update the descriptor when the
 205     * bo is submitted. For now, just prevent the bo from being freed
 206     * while it is in use indirectly.
 207     */
 208    struct etna_resource *res = etna_resource(sv->base.texture);
 209    if (res->texture) {
 210       res = etna_resource(res->texture);
 211    }
 212    /* No need to ref LOD levels individually as they'll always come from the same bo */
 213    etna_cmd_stream_ref_bo(stream, res->bo, ETNA_RELOC_READ);
 214 }
 215
 216 static void
 217 etna_sampler_view_desc_destroy(struct pipe_context *pctx,
 218                           struct pipe_sampler_view *so)
 219 {
 220    struct etna_sampler_view_desc *sv = etna_sampler_view_desc(so);
 221    pipe_resource_reference(&sv->base.texture, NULL);
 222    etna_bo_del(sv->bo);
 223    FREE(sv);
 224 }
 225
 226 static void
 227 etna_emit_texture_desc(struct etna_context *ctx)
 228 {
 229    struct etna_cmd_stream *stream = ctx->stream;
 230    uint32_t active_samplers = active_samplers_bits(ctx);
 231    uint32_t dirty = ctx->dirty;
 232
 233    if (unlikely(dirty & ETNA_DIRTY_SAMPLER_VIEWS)) {
 234       for (int x = 0; x < VIVS_TS_SAMPLER__LEN; ++x) {
 235          if ((1 << x) & active_samplers) {
 236             struct etna_sampler_view_desc *sv = etna_sampler_view_desc(ctx->sampler_view[x]);
 237             struct etna_resource *res = etna_resource(sv->base.texture);
 238             struct etna_reloc LOD_ADDR_0;
 239
 240             if (!sv->ts.enable)
 241                continue;
 242
 243             etna_set_state(stream, VIVS_TS_SAMPLER_CONFIG(x), sv->ts.TS_SAMPLER_CONFIG);
 244             etna_set_state_reloc(stream, VIVS_TS_SAMPLER_STATUS_BASE(x), &sv->ts.TS_SAMPLER_STATUS_BASE);
 245             etna_set_state(stream, VIVS_TS_SAMPLER_CLEAR_VALUE(x), sv->ts.TS_SAMPLER_CLEAR_VALUE);
 246             etna_set_state(stream, VIVS_TS_SAMPLER_CLEAR_VALUE2(x), sv->ts.TS_SAMPLER_CLEAR_VALUE2);
 247
 248             LOD_ADDR_0.bo = res->bo;
 249             LOD_ADDR_0.offset = res->levels[0].offset;
 250             LOD_ADDR_0.flags = ETNA_RELOC_READ;
 251
 252             etna_set_state_reloc(stream, VIVS_TS_SAMPLER_SURFACE_BASE(x), &LOD_ADDR_0);
 253          }
 254       }
 255    }
 256
 257    if (unlikely(dirty & (ETNA_DIRTY_SAMPLERS | ETNA_DIRTY_SAMPLER_VIEWS))) {
 258       for (int x = 0; x < PIPE_MAX_SAMPLERS; ++x) {
 259          if ((1 << x) & active_samplers) {
 260             struct etna_sampler_state_desc *ss = etna_sampler_state_desc(ctx->sampler[x]);
 261             struct etna_sampler_view_desc *sv = etna_sampler_view_desc(ctx->sampler_view[x]);
 262             etna_set_state(stream, VIVS_NTE_DESCRIPTOR_TX_CTRL(x),
 263                COND(sv->ts.enable, VIVS_NTE_DESCRIPTOR_TX_CTRL_TS_ENABLE) |
 264                VIVS_NTE_DESCRIPTOR_TX_CTRL_TS_MODE(sv->ts.mode) |
 265                VIVS_NTE_DESCRIPTOR_TX_CTRL_TS_INDEX(x));
 266             etna_set_state(stream, VIVS_NTE_DESCRIPTOR_SAMP_CTRL0(x), ss->SAMP_CTRL0 | sv->SAMP_CTRL0);
 267             etna_set_state(stream, VIVS_NTE_DESCRIPTOR_SAMP_CTRL1(x), ss->SAMP_CTRL1 | sv->SAMP_CTRL1);
 268             etna_set_state(stream, VIVS_NTE_DESCRIPTOR_SAMP_LOD_MINMAX(x), ss->SAMP_LOD_MINMAX);
 269             etna_set_state(stream, VIVS_NTE_DESCRIPTOR_SAMP_LOD_BIAS(x), ss->SAMP_LOD_BIAS);
 270          }
 271       }
 272    }
 273
 274    if (unlikely(dirty & ETNA_DIRTY_SAMPLER_VIEWS)) {
 275       /* Set texture descriptors */
 276       for (int x = 0; x < PIPE_MAX_SAMPLERS; ++x) {
 277          if ((1 << x) & ctx->dirty_sampler_views) {
 278             if ((1 << x) & active_samplers) {
 279                struct etna_sampler_view_desc *sv = etna_sampler_view_desc(ctx->sampler_view[x]);
 280                etna_sampler_view_update_descriptor(ctx, stream, sv);
 281                etna_set_state_reloc(stream, VIVS_NTE_DESCRIPTOR_ADDR(x), &sv->DESC_ADDR);
 282             } else {
 283                /* dummy texture descriptors for unused samplers */
 284                etna_set_state_reloc(stream, VIVS_NTE_DESCRIPTOR_ADDR(x), &ctx->DUMMY_DESC_ADDR);
 285             }
 286          }
 287       }
 288    }
 289
 290    if (unlikely(dirty & ETNA_DIRTY_SAMPLER_VIEWS)) {
 291       /* Invalidate all dirty sampler views.
 292        */
 293       for (int x = 0; x < PIPE_MAX_SAMPLERS; ++x) {
 294          if ((1 << x) & ctx->dirty_sampler_views) {
 295             etna_set_state(stream, VIVS_NTE_DESCRIPTOR_INVALIDATE,
 296                   VIVS_NTE_DESCRIPTOR_INVALIDATE_UNK29 |
 297                   VIVS_NTE_DESCRIPTOR_INVALIDATE_IDX(x));
 298          }
 299       }
 300    }
 301 }
 302
 303 static struct etna_sampler_ts*
 304 etna_ts_for_sampler_view_state(struct pipe_sampler_view *pview)
 305 {
 306    struct etna_sampler_view_desc *sv = etna_sampler_view_desc(pview);
 307    return &sv->ts;
 308 }
 309
 310 void
 311 etna_texture_desc_init(struct pipe_context *pctx)
 312 {
 313    struct etna_context *ctx = etna_context(pctx);
 314    DBG("etnaviv: Using descriptor-based texturing\n");
 315    ctx->base.create_sampler_state = etna_create_sampler_state_desc;
 316    ctx->base.delete_sampler_state = etna_delete_sampler_state_desc;
 317    ctx->base.create_sampler_view = etna_create_sampler_view_desc;
 318    ctx->base.sampler_view_destroy = etna_sampler_view_desc_destroy;
 319    ctx->emit_texture_state = etna_emit_texture_desc;
 320    ctx->ts_for_sampler_view = etna_ts_for_sampler_view_state;
 321 }
 322