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38 lines
991 B
38 lines
991 B
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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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 <[email protected]> |
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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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