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 19 register void *__stack_pointer asm("r1"); 20 #define get_sp() (__stack_pointer) 21 22 #endif /* _PPC_BOOT_REG_H */ 23