/* *  spr.h -- Access to special purpose registers. * *  Copyright (C) 1998 Gabriel Paubert, paubert@iram.es * *  Modified to compile in RTEMS development environment *  by Eric Valette * *  Copyright (C) 1999 Eric Valette. valette@crf.canon.fr * *  The license and distribution terms for this file may be *  found in found in the file LICENSE in this distribution or at *  http://www.rtems.com/license/LICENSE. * * $Id: spr.h,v 1.2.4.1 2003/09/04 18:45:53 joel Exp $ * */#ifndef _PPC_SPR_H#define _PPC_SPR_H#include <rtems/powerpc/registers.h>#define __MFSPR(reg, val) \	__asm__ __volatile__("mfspr %0,"#reg : "=r" (val))#define __MTSPR(val, reg) \	__asm__ __volatile__("mtspr "#reg",%0" : : "r" (val))#define SPR_RW(reg) \static inline unsigned long _read_##reg(void) \{\	unsigned long val;\	__MFSPR(reg, val);\	return val;\}\static inline void _write_##reg(unsigned long val)\{\	__MTSPR(val,reg);\	return;\}#define SPR_RO(reg) \static inline unsigned long _read_##reg(void) \{\	unsigned long val;\	__MFSPR(reg,val);\	return val;\}static inline unsigned long _read_MSR(void){	unsigned long val;	asm volatile("mfmsr %0" : "=r" (val));	return val;} static inline void _write_MSR(unsigned long val){	asm volatile("mtmsr %0" : : "r" (val));	return;}static inline unsigned long _read_SR(void * va){	unsigned long val;	asm volatile("mfsrin %0,%1" : "=r" (val): "r" (va));	return val;} static inline void _write_SR(unsigned long val, void * va){	asm volatile("mtsrin %0,%1" : : "r"(val), "r" (va): "memory");	return;}#endif