/* SPDX-License-Identifier: BSD-3-Clause

*

* Copyright(c) 2018 Intel Corporation. All rights reserved.

*

* Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>

*/

#ifdef __XTOS_RTOS_STRING_H__

#ifndef __ARCH_STRING_H__

#define __ARCH_STRING_H__

#include <xtensa/hal.h>

#include <errno.h>

#include <stddef.h>

#include <string.h>

#define arch_memcpy(dest, src, size) \

xthal_memcpy(dest, src, size)

#define bzero(ptr, size) \

memset_s(ptr, size, 0, size)

void *xthal_memcpy(void *dst, const void *src, size_t len);

int memset_s(void *dest, size_t dest_size,

int data, size_t count);

int memcpy_s(void *dest, size_t dest_size,

const void *src, size_t count);

void *__vec_memcpy(void *dst, const void *src, size_t len);

void *__vec_memset(void *dest, int data, size_t src_size);

static inline int arch_memcpy_s(void *dest, size_t dest_size,

const void *src, size_t count)

{

if (!dest || !src)

return -EINVAL;

if ((dest >= src && (char *)dest < ((char *)src + count)) ||

(src >= dest && (char *)src < ((char *)dest + dest_size)))

return -EINVAL;

if (count > dest_size)

return -EINVAL;

#if __XCC__ && XCHAL_HAVE_HIFI3 && !CONFIG_LIBRARY

__vec_memcpy(dest, src, count);

#else

memcpy(dest, src, count);

#endif

return 0;

}

static inline int arch_memset_s(void *dest, size_t dest_size,

int data, size_t count)

{

if (!dest)

return -EINVAL;

if (count > dest_size)

return -EINVAL;

#if __XCC__ && XCHAL_HAVE_HIFI3 && !CONFIG_LIBRARY

if (!__vec_memset(dest, data, count))

return -ENOMEM;

#else

memset(dest, data, count);

#endif

return 0;

}

#endif /* __ARCH_STRING_H__ */

#else

#error "This file shouldn't be included from outside of sof/string.h"

#endif /* __SOF_STRING_H__ */