2 * (C) Copyright IBM Corporation 2004
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27 * Functions for properly handling memory mapped IO on various platforms.
29 * \author Ian Romanick <idr@us.ibm.com>
36 #include "main/glheader.h"
38 #if defined( __powerpc__ )
40 static INLINE
uint32_t
41 read_MMIO_LE32( volatile void * base
, unsigned long offset
)
45 __asm__
__volatile__( "lwbrx %0, %1, %2 ; eieio"
47 : "b" (base
), "r" (offset
) );
53 static INLINE
uint32_t
54 read_MMIO_LE32( volatile void * base
, unsigned long offset
)
56 volatile uint32_t * p
= (volatile uint32_t *) (((volatile char *) base
) + offset
);
57 return LE32_TO_CPU( p
[0] );