1/*
2 * Copyright 2017, Data61
3 * Commonwealth Scientific and Industrial Research Organisation (CSIRO)
4 * ABN 41 687 119 230.
5 *
6 * This software may be distributed and modified according to the terms of
7 * the BSD 2-Clause license. Note that NO WARRANTY is provided.
8 * See "LICENSE_BSD2.txt" for details.
9 *
10 * @TAG(DATA61_BSD)
11 */
12
13#pragma once
14
15#include <autoconf.h>
16#include <stdlib.h>
17#include <stdint.h>
18#include <sel4/types.h>
19#include <allocman/mspace/mspace.h>
20#include <allocman/mspace/k_r_malloc.h>
21
22/* Performs allocation from a fixed pool of memory */
23
24struct mspace_fixed_pool_config {
25    void *pool;
26    size_t size;
27};
28
29typedef struct mspace_fixed_pool {
30    uintptr_t pool_ptr;
31    size_t remaining;
32    mspace_k_r_malloc_t k_r_malloc;
33} mspace_fixed_pool_t;
34
35void mspace_fixed_pool_create(mspace_fixed_pool_t *fixed_pool, struct mspace_fixed_pool_config config);
36
37void *_mspace_fixed_pool_alloc(struct allocman *alloc, void *_fixed_pool, size_t bytes, int *error);
38void _mspace_fixed_pool_free(struct allocman *alloc, void *_fixed_pool, void *ptr, size_t bytes);
39
40static inline struct mspace_interface mspace_fixed_pool_make_interface(mspace_fixed_pool_t *fixed_pool) {
41    return (struct mspace_interface){
42        .alloc = _mspace_fixed_pool_alloc,
43        .free = _mspace_fixed_pool_free,
44        .properties = ALLOCMAN_DEFAULT_PROPERTIES,
45        .mspace = fixed_pool
46    };
47}
48
49