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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /*
- * OpenRISC Linux
- *
- * Linux architectural port borrowing liberally from similar works of
- * others. All original copyrights apply as per the original source
- * declaration.
- *
- * OpenRISC implementation:
- * Copyright (C) 2010-2011 Jonas Bonn <[email protected]>
- */
- #ifndef __ASM_OPENRISC_SPR_H
- #define __ASM_OPENRISC_SPR_H
- #define mtspr(_spr, _val) __asm__ __volatile__ ( \
- "l.mtspr r0,%1,%0" \
- : : "K" (_spr), "r" (_val))
- #define mtspr_off(_spr, _off, _val) __asm__ __volatile__ ( \
- "l.mtspr %0,%1,%2" \
- : : "r" (_off), "r" (_val), "K" (_spr))
- static inline unsigned long mfspr(unsigned long add)
- {
- unsigned long ret;
- __asm__ __volatile__ ("l.mfspr %0,r0,%1" : "=r" (ret) : "K" (add));
- return ret;
- }
- static inline unsigned long mfspr_off(unsigned long add, unsigned long offset)
- {
- unsigned long ret;
- __asm__ __volatile__ ("l.mfspr %0,%1,%2" : "=r" (ret)
- : "r" (offset), "K" (add));
- return ret;
- }
- #endif
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