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- #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 */
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