src/util/vma.h

   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 #ifndef _UTIL_VMA_H
  25 #define _UTIL_VMA_H
  26
  27 #include <stdint.h>
  28
  29 #include "list.h"
  30
  31 #ifdef __cplusplus
  32 extern "C" {
  33 #endif
  34
  35 struct util_vma_heap {
  36    struct list_head holes;
  37 };
  38
  39 void util_vma_heap_init(struct util_vma_heap *heap,
  40                         uint64_t start, uint64_t size);
  41 void util_vma_heap_finish(struct util_vma_heap *heap);
  42
  43 uint64_t util_vma_heap_alloc(struct util_vma_heap *heap,
  44                              uint64_t size, uint64_t alignment);
  45
  46 bool util_vma_heap_alloc_addr(struct util_vma_heap *heap,
  47                               uint64_t addr, uint64_t size);
  48
  49 void util_vma_heap_free(struct util_vma_heap *heap,
  50                         uint64_t offset, uint64_t size);
  51
  52 #ifdef __cplusplus
  53 } /* extern C */
  54 #endif
  55
  56 #endif /* _UTIL_DEBUG_H */