src/panfrost/shared/pan_minmax_cache.h

   1 /*
   2  * Copyright (c) 2020 Collabora, Ltd.
   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 (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  * Authors (Collabora):
  24  *   Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
  25  */
  26
  27 #ifndef H_PAN_MINMAX_CACHE
  28 #define H_PAN_MINMAX_CACHE
  29
  30 #include "util/u_transfer.h"
  31
  32 #define PANFROST_MINMAX_SIZE 64
  33
  34 struct panfrost_minmax_cache {
  35         uint64_t keys[PANFROST_MINMAX_SIZE];
  36         uint64_t values[PANFROST_MINMAX_SIZE];
  37         unsigned size;
  38         unsigned index;
  39 };
  40
  41 bool
  42 panfrost_minmax_cache_get(struct panfrost_minmax_cache *cache, unsigned start, unsigned count,
  43                      unsigned *min_index, unsigned *max_index);
  44
  45 void
  46 panfrost_minmax_cache_add(struct panfrost_minmax_cache *cache, unsigned start, unsigned count,
  47                      unsigned min_index, unsigned max_index);
  48
  49 void
  50 panfrost_minmax_cache_invalidate(struct panfrost_minmax_cache *cache, struct pipe_transfer *transfer);
  51
  52 #endif