/* 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 */