95 lines
2.2 KiB
C
95 lines
2.2 KiB
C
/***************************************************************************
|
|
*
|
|
* Copyright 2015-2019 BES.
|
|
* All rights reserved. All unpublished rights reserved.
|
|
*
|
|
* No part of this work may be used or reproduced in any form or by any
|
|
* means, or stored in a database or retrieval system, without prior written
|
|
* permission of BES.
|
|
*
|
|
* Use of this work is governed by a license granted by BES.
|
|
* This work contains confidential and proprietary information of
|
|
* BES. which is protected by copyright, trade secret,
|
|
* trademark and other intellectual property rights.
|
|
*
|
|
****************************************************************************/
|
|
#include "plat_types.h"
|
|
#include "string.h"
|
|
#include "memutils.h"
|
|
|
|
#define ALIGNED32(a) (((uint32_t)(a) & 3) == 0)
|
|
#define ALIGNED16(a) (((uint32_t)(a) & 1) == 0)
|
|
|
|
void *copy_mem32(void *dst, const void *src, unsigned int size)
|
|
{
|
|
uint32_t *d = dst;
|
|
const uint32_t *s = src;
|
|
const uint32_t *e = s + size / 4;
|
|
|
|
while (s < e) {
|
|
*d++ = *s++;
|
|
}
|
|
|
|
return dst;
|
|
}
|
|
|
|
void *copy_mem16(void *dst, const void *src, unsigned int size)
|
|
{
|
|
uint16_t *d = dst;
|
|
const uint16_t *s = src;
|
|
const uint16_t *e = s + size / 2;
|
|
|
|
while (s < e) {
|
|
*d++ = *s++;
|
|
}
|
|
|
|
return dst;
|
|
}
|
|
|
|
void *copy_mem(void *dst, const void *src, unsigned int size)
|
|
{
|
|
if (ALIGNED32(dst) && ALIGNED32(src) && ALIGNED32(size)) {
|
|
return copy_mem32(dst, src, size);
|
|
} else if (ALIGNED16(dst) && ALIGNED16(src) && ALIGNED16(size)) {
|
|
return copy_mem16(dst, src, size);
|
|
} else {
|
|
return memcpy(dst, src, size);
|
|
}
|
|
}
|
|
|
|
void *zero_mem32(void *dst, unsigned int size)
|
|
{
|
|
uint32_t *d = dst;
|
|
uint32_t count = size / 4;
|
|
|
|
while (count--) {
|
|
*d++ = 0;
|
|
}
|
|
|
|
return dst;
|
|
}
|
|
|
|
void *zero_mem16(void *dst, unsigned int size)
|
|
{
|
|
uint16_t *d = dst;
|
|
uint32_t count = size / 2;
|
|
|
|
while (count--) {
|
|
*d++ = 0;
|
|
}
|
|
|
|
return dst;
|
|
}
|
|
|
|
void *zero_mem(void *dst, unsigned int size)
|
|
{
|
|
if (ALIGNED32(dst) && ALIGNED32(size)) {
|
|
return zero_mem32(dst, size);
|
|
} else if (ALIGNED16(dst) && ALIGNED16(size)) {
|
|
return zero_mem16(dst, size);
|
|
} else {
|
|
return memset(dst, 0, size);
|
|
}
|
|
}
|
|
|