/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _PPC_BOOT_REG_H
#define _PPC_BOOT_REG_H
/*
 * Copyright 2007 Davud Gibson, IBM Corporation.
 */

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 */