mirror of
https://github.com/openharmony/kernel_linux_common_modules.git
synced 2026-08-27 01:31:36 -04:00
suwanghw
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*
|
|
* Copyright (C) 2022 Huawei Technologies Co., Ltd.
|
|
* Decription: memory operation for gp sharedmem.
|
|
*
|
|
* This software is licensed under the terms of the GNU General Public
|
|
* License version 2, as published by the Free Software Foundation, and
|
|
* may be copied, distributed, and modified under those terms.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
#ifndef MEM_H
|
|
#define MEM_H
|
|
#include <linux/types.h>
|
|
#include "teek_ns_client.h"
|
|
|
|
#define PRE_ALLOCATE_SIZE (1024*1024)
|
|
#define MEM_POOL_ELEMENT_SIZE (64*1024)
|
|
#define MEM_POOL_ELEMENT_NR (8)
|
|
#define MEM_POOL_ELEMENT_ORDER (4)
|
|
|
|
struct tc_ns_shared_mem *tc_mem_allocate(size_t len);
|
|
void tc_mem_free(struct tc_ns_shared_mem *shared_mem);
|
|
|
|
static inline void get_sharemem_struct(struct tc_ns_shared_mem *sharemem)
|
|
{
|
|
if (sharemem != NULL)
|
|
atomic_inc(&sharemem->usage);
|
|
}
|
|
|
|
static inline void put_sharemem_struct(struct tc_ns_shared_mem *sharemem)
|
|
{
|
|
if (sharemem != NULL) {
|
|
if (atomic_dec_and_test(&sharemem->usage))
|
|
tc_mem_free(sharemem);
|
|
}
|
|
}
|
|
|
|
#endif
|