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1/* SPDX-License-Identifier: GPL-2.0-only */
2/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
3#ifndef _BPF_MEM_ALLOC_H
4#define _BPF_MEM_ALLOC_H
5#include <linux/compiler_types.h>
6#include <linux/workqueue.h>
7
8struct bpf_mem_cache;
9struct bpf_mem_caches;
10
11struct bpf_mem_alloc {
12 struct bpf_mem_caches __percpu *caches;
13 struct bpf_mem_cache __percpu *cache;
14 struct work_struct work;
15};
16
17int bpf_mem_alloc_init(struct bpf_mem_alloc *ma, int size, bool percpu);
18void bpf_mem_alloc_destroy(struct bpf_mem_alloc *ma);
19
20/* kmalloc/kfree equivalent: */
21void *bpf_mem_alloc(struct bpf_mem_alloc *ma, size_t size);
22void bpf_mem_free(struct bpf_mem_alloc *ma, void *ptr);
23
24/* kmem_cache_alloc/free equivalent: */
25void *bpf_mem_cache_alloc(struct bpf_mem_alloc *ma);
26void bpf_mem_cache_free(struct bpf_mem_alloc *ma, void *ptr);
27
28#endif /* _BPF_MEM_ALLOC_H */