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/******************************************************************************
* Copyright (c) 2004, 2008 IBM Corporation
* All rights reserved.
* This program and the accompanying materials
* are made available under the terms of the BSD License
* which accompanies this distribution, and is available at
* http://www.opensource.org/licenses/bsd-license.php
*
* Contributors:
* IBM Corporation - initial implementation
*****************************************************************************/
#ifndef __CACHE_H
#define __CACHE_H
#include <cpu.h>
#include <stdint.h>
#define cache_inhibited_access(type,name) \
static inline type ci_read_##name(type * addr) \
{ \
type val; \
set_ci(); \
val = *addr; \
clr_ci(); \
return val; \
} \
static inline void ci_write_##name(type * addr, type data) \
{ \
set_ci(); \
*addr = data; \
clr_ci(); \
}
cache_inhibited_access(uint8_t, 8)
cache_inhibited_access(uint16_t, 16)
cache_inhibited_access(uint32_t, 32)
cache_inhibited_access(uint64_t, 64)
#define _FWOVERLAP(s, d, size) ((d >= s) && ((type_u)d < ((type_u)s + size)))
// 3.1
#define _FWMOVE(s, d, size, t) \
{ t *s1=(t *)s, *d1=(t *)d; \
while (size > 0) { *d1++ = *s1++; size -= sizeof(t); } }
#define _BWMOVE(s, d, size, t) { \
t *s1=(t *)((char *)s+size), *d1=(t *)((char *)d+size); \
while (size > 0) { *--d1 = *--s1; size -= sizeof(t); } \
}
#define _MOVE(s, d, size, t) if _FWOVERLAP(s, d, size) _BWMOVE(s, d, size, t) else _FWMOVE(s, d, size, t)
#define _FASTMOVE(s, d, size) \
switch (((type_u)s | (type_u)d | size) & (sizeof(type_u)-1)) { \
case 0: _MOVE(s, d, size, type_u); break; \
case sizeof(type_l): _MOVE(s, d, size, type_l); break; \
case sizeof(type_w): _MOVE(s, d, size, type_w); break; \
default: _MOVE(s, d, size, type_c); break; \
}
// Device IO block data helpers
#define _FWRMOVE(s, d, size, t) \
{ t *s1=(t *)s, *d1=(t *)d; SET_CI; \
while (size > 0) { *d1++ = *s1++; size -= sizeof(t); } \
CLR_CI; \
}
#define _BWRMOVE(s, d, size, t) { \
t *s1=(t *)((char *)s+size), *d1=(t *)((char *)d+size); SET_CI; \
while (size > 0) { *--d1 = *--s1; size -= sizeof(t); } \
CLR_CI; \
}
#define _RMOVE(s, d, size, t) if _FWOVERLAP(s, d, size) _BWRMOVE(s, d, size, t) else _FWRMOVE(s, d, size, t)
#define _FASTRMOVE(s, d, size) \
switch (((type_u)s | (type_u)d | size) & (sizeof(type_u)-1)) { \
case 0: _RMOVE(s, d, size, type_u); break; \
case sizeof(type_l): _RMOVE(s, d, size, type_l); break; \
case sizeof(type_w): _RMOVE(s, d, size, type_w); break; \
default: _RMOVE(s, d, size, type_c); break; \
}
#endif
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