/* 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 */ |