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add block io functions 

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3513 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Stefan Reinauer 2008-08-16 15:17:36 +00:00 committed by Stefan Reinauer
parent 11e45cd3ff
commit f394c7593f
1 changed files with 31 additions and 0 deletions
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31
payloads/libpayload/include/arch/io.h
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@ -2,6 +2,7 @@
* This file is part of the libpayload project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
* Copyright (C) 2008 coresystems GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -74,4 +75,34 @@ static inline void outb(unsigned char val, int port)
__asm__ __volatile__("outb %b0, %w1" : : "a"(val), "Nd"(port));
}
static inline void outsl(int port, const void *addr, unsigned long count)
{
__asm__ __volatile__("rep; outsl" : "+S"(addr), "+c"(count) : "d"(port));
}
static inline void outsw(int port, const void *addr, unsigned long count)
{
__asm__ __volatile__("rep; outsw" : "+S"(addr), "+c"(count) : "d"(port));
}
static inline void outsb(int port, const void *addr, unsigned long count)
{
__asm__ __volatile__("rep; outsb" : "+S"(addr), "+c"(count) : "d"(port));
}
static inline void insl(int port, void *addr, unsigned long count)
{
__asm__ __volatile__("rep; insl" : "+D"(addr), "+c"(count) : "d"(port));
}
static inline void insw(int port, void *addr, unsigned long count)
{
__asm__ __volatile__("rep; insw" : "+D"(addr), "+c"(count) : "d"(port));
}
static inline void insb(int port, void *addr, unsigned long count)
{
__asm__ __volatile__("rep; insb" : "+D"(addr), "+c"(count) : "d"(port));
}
#endif