49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
/*
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* Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef __UTILS_H__
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#define __UTILS_H__
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#include <utils_def.h>
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/*
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* C code should be put in this part of the header to avoid breaking ASM files
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* or linker scripts including it.
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*/
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#if !(defined(__LINKER__) || defined(__ASSEMBLY__))
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#include <types.h>
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/*
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* Fill a region of normal memory of size "length" in bytes with zero bytes.
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*
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* WARNING: This function can only operate on normal memory. This means that
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* the MMU must be enabled when using this function. Otherwise, use
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* zeromem.
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*/
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void zero_normalmem(void *mem, u_register_t length);
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/*
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* Fill a region of memory of size "length" in bytes with null bytes.
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*
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* Unlike zero_normalmem, this function has no restriction on the type of
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* memory targeted and can be used for any device memory as well as normal
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* memory. This function must be used instead of zero_normalmem when MMU is
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* disabled.
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*
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* NOTE: When data cache and MMU are enabled, prefer zero_normalmem for faster
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* zeroing.
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*/
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void zeromem(void *mem, u_register_t length);
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char *ntostr(char *nbuf, uintmax_t num, int _base, int upper);
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void bytes_reverse(void *buf, size_t n);
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#endif /* !(defined(__LINKER__) || defined(__ASSEMBLY__)) */
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#endif /* __UTILS_H__ */
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