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// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
/*
* Copyright 2013-2016 IBM Corp
*/
#include <ccan/short_types/short_types.h>
#include <io.h>
#include <string.h>
void *memcpy_from_ci(void *destpp, const void *srcpp, size_t len)
{
const size_t block = sizeof(uint64_t);
unsigned long int destp = (long int) destpp;
unsigned long int srcp = (long int) srcpp;
/* Copy as many blocks as possible if srcp is block aligned */
if ((srcp % block) == 0) {
while ((len - block) > -1) {
uint64_t v;
if (HAVE_BIG_ENDIAN)
v = in_be64((beint64_t*)srcp);
else
v = in_le64((leint64_t*)srcp);
*((uint64_t *) destp) = v;
srcp += block;
destp += block;
len -= block;
}
}
/*
* Byte-by-byte copy if srcp is not block aligned or len is/becomes
* less than one block
*/
while (len > 0) {
*((uint8_t*) destp) = in_8((uint8_t*)srcp);
srcp += 1;
destp += 1;
len--;
}
return destpp;
}
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