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/*
* Creation Date: <1999/09/26 01:02:58 samuel>
* Time-stamp: <2001/06/16 16:54:25 samuel>
*
* <asmfuncs.h>
*
* Exports from <base.S>
*
* Copyright (C) 1999, 2000, 2001 Samuel Rydh (samuel@ibrium.se)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation
*
*/
#ifndef _H_ASMFUNCS
#define _H_ASMFUNCS
#include "reloc.h"
#include "kernel_vars.h"
/* The code in base.o (all low-level assembly) are copied to a physically
* continuous memory area. The following inline functions maps function calls
* to the relocated area.
*/
static inline void msr_altered( kernel_vars_t *kv ) {
typedef void ftype( kernel_vars_t * );
extern ftype r__msr_altered;
(*(ftype*)reloc_ptr( r__msr_altered ))( kv );
}
static inline void invalidate_splitmode_sr( kernel_vars_t *kv ) {
typedef void ftype( kernel_vars_t *);
extern ftype r__invalidate_splitmode_sr;
(*(ftype*)reloc_ptr( r__invalidate_splitmode_sr ))( kv );
}
/************************************************************************/
/* misc inlines */
/************************************************************************/
#define _sync() ({ asm volatile("sync ;\n isync" :: ); })
static inline ulong _get_sdr1( void ) {
ulong sdr1;
asm volatile("mfsdr1 %0" : "=r" (sdr1) : );
return sdr1;
}
static inline void _set_sdr1( ulong sdr1 ) {
asm volatile("mtsdr1 %0" : : "r" (sdr1) );
}
static inline int cpu_is_601( void ) {
ulong pvr;
asm volatile("mfpvr %0" : "=r" (pvr) : );
return (pvr>>16)==1;
}
static inline int cpu_is_603( void ) {
ulong pvr;
asm volatile("mfpvr %0" : "=r" (pvr) : );
pvr = pvr >> 16;
return pvr==3 || pvr==6 || pvr==7; /* 603, 603e, 603ev */
}
#endif /* _H_ASMFUNCS */
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