src/intel/vulkan/tests/state_pool_padding.c

   1 /*
   2  * Copyright © 2018 Intel Corporation
   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
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #undef NDEBUG
  25
  26 #include "anv_private.h"
  27
  28 int main(int argc, char **argv)
  29 {
  30    struct anv_physical_device physical_device = {
  31       .use_softpin = true,
  32    };
  33    struct anv_device device = {
  34       .physical = &physical_device,
  35    };
  36    struct anv_state_pool state_pool;
  37
  38    pthread_mutex_init(&device.mutex, NULL);
  39    anv_bo_cache_init(&device.bo_cache);
  40    anv_state_pool_init(&state_pool, &device, 4096, 4096);
  41
  42    /* Get the size of the underlying block_pool */
  43    struct anv_block_pool *bp = &state_pool.block_pool;
  44    uint64_t pool_size = bp->size;
  45
  46    /* Grab one so the pool has some initial usage */
  47    anv_state_pool_alloc(&state_pool, 16, 16);
  48
  49    /* Grab a state that is the size of the initial allocation */
  50    struct anv_state state = anv_state_pool_alloc(&state_pool, pool_size, 16);
  51
  52    /* The pool must have grown */
  53    assert(bp->size > pool_size);
  54
  55    /* And the state must have been allocated at the end of the original size  */
  56    assert(state.offset == pool_size);
  57
  58    /* A new allocation that fits into the returned empty space should have an
  59     * offset within the original pool size
  60     */
  61    state = anv_state_pool_alloc(&state_pool, 4096, 16);
  62    assert(state.offset + state.alloc_size <= pool_size);
  63
  64    /* We should be able to allocate pool->block_size'd chunks in the returned area
  65     */
  66    int left_chunks = pool_size / 4096 - 2;
  67    for (int i = 0; i < left_chunks; i++) {
  68       state = anv_state_pool_alloc(&state_pool, 4096, 16);
  69       assert(state.offset + state.alloc_size <= pool_size);
  70    }
  71
  72    /* Now the next chunk to be allocated should make the pool grow again */
  73    pool_size = bp->size;
  74    state = anv_state_pool_alloc(&state_pool, 4096, 16);
  75    assert(bp->size > pool_size);
  76    assert(state.offset == pool_size);
  77
  78    anv_state_pool_finish(&state_pool);
  79 }