| #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 */ |