1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * OpenRISC Linux
4 *
5 * Linux architectural port borrowing liberally from similar works of
6 * others. All original copyrights apply as per the original source
7 * declaration.
8 *
9 * OpenRISC implementation:
10 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11 */
12
13 #ifndef __ASM_OPENRISC_SPR_H
14 #define __ASM_OPENRISC_SPR_H
15
16 #define mtspr(_spr, _val) __asm__ __volatile__ ( \
17 "l.mtspr r0,%1,%0" \
18 : : "K" (_spr), "r" (_val))
19 #define mtspr_off(_spr, _off, _val) __asm__ __volatile__ ( \
20 "l.mtspr %0,%1,%2" \
21 : : "r" (_off), "r" (_val), "K" (_spr))
22
23 static inline unsigned long mfspr(unsigned long add)
24 {
25 unsigned long ret;
26 __asm__ __volatile__ ("l.mfspr %0,r0,%1" : "=r" (ret) : "K" (add));
27 return ret;
28 }
29
30 static inline unsigned long mfspr_off(unsigned long add, unsigned long offset)
31 {
32 unsigned long ret;
33 __asm__ __volatile__ ("l.mfspr %0,%1,%2" : "=r" (ret)
34 : "r" (offset), "K" (add));
35 return ret;
36 }
37
38 #endif
39
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