43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
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/*
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* OpenRISC Linux
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*
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* Linux architectural port borrowing liberally from similar works of
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* others. All original copyrights apply as per the original source
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* declaration.
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*
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* OpenRISC implementation:
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* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __ASM_OPENRISC_SPR_H
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#define __ASM_OPENRISC_SPR_H
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#define mtspr(_spr, _val) __asm__ __volatile__ ( \
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"l.mtspr r0,%1,%0" \
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: : "K" (_spr), "r" (_val))
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#define mtspr_off(_spr, _off, _val) __asm__ __volatile__ ( \
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"l.mtspr %0,%1,%2" \
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: : "r" (_off), "r" (_val), "K" (_spr))
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static inline unsigned long mfspr(unsigned long add)
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{
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unsigned long ret;
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__asm__ __volatile__ ("l.mfspr %0,r0,%1" : "=r" (ret) : "K" (add));
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return ret;
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}
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static inline unsigned long mfspr_off(unsigned long add, unsigned long offset)
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{
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unsigned long ret;
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__asm__ __volatile__ ("l.mfspr %0,%1,%2" : "=r" (ret)
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: "r" (offset), "K" (add));
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return ret;
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}
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#endif
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