Release 4.14 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;
}

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#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 */
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Benjamin Herrenschmidt
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Directory: arch/powerpc/boot

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