| #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; | |
| } | |
| #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 */ |