[deliverable/linux.git] / arch / powerpc / boot / reg.h

#ifndef _PPC_BOOT_REG_H
#define _PPC_BOOT_REG_H
/*
 * Copyright 2007 Davud Gibson, IBM Corporation.
 *
 * 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; either version
 * 2 of the License, or (at your option) any later version.
 */

static inline u32 mfpvr(void)
{
	u32 pvr;
	asm volatile ("mfpvr	%0" : "=r"(pvr));
	return pvr;
}

#define __stringify_1(x)	#x
#define __stringify(x)		__stringify_1(x)

#define mfspr(rn)	({unsigned long rval; \
			asm volatile("mfspr %0," __stringify(rn) \
				: "=r" (rval)); rval; })
#define mtspr(rn, v)	asm volatile("mtspr " __stringify(rn) ",%0" : : "r" (v))

register void *__stack_pointer asm("r1");
#define get_sp()	(__stack_pointer)

#endif	/* _PPC_BOOT_REG_H */
Commit	Line	Data
e5a2072b DG	1	#ifndef _PPC_BOOT_REG_H
	2	#define _PPC_BOOT_REG_H
	3	/*
	4	* Copyright 2007 Davud Gibson, IBM Corporation.
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License
	8	* as published by the Free Software Foundation; either version
	9	* 2 of the License, or (at your option) any later version.
	10	*/
	11
	12	static inline u32 mfpvr(void)
	13	{
	14	u32 pvr;
	15	asm volatile ("mfpvr %0" : "=r"(pvr));
	16	return pvr;
	17	}
	18
ee41eea9 BH	19	#define __stringify_1(x) #x
	20	#define __stringify(x) __stringify_1(x)
	21
	22	#define mfspr(rn) ({unsigned long rval; \
	23	asm volatile("mfspr %0," __stringify(rn) \
	24	: "=r" (rval)); rval; })
	25	#define mtspr(rn, v) asm volatile("mtspr " __stringify(rn) ",%0" : : "r" (v))
	26
e5a2072b DG	27	register void *__stack_pointer asm("r1");
	28	#define get_sp() (__stack_pointer)
	29
	30	#endif /* _PPC_BOOT_REG_H */