1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * OpenRISC Linux
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Linux architectural port borrowing liberally from similar works of
6*4882a593Smuzhiyun * others. All original copyrights apply as per the original source
7*4882a593Smuzhiyun * declaration.
8*4882a593Smuzhiyun *
9*4882a593Smuzhiyun * OpenRISC implementation:
10*4882a593Smuzhiyun * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
11*4882a593Smuzhiyun */
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #ifndef __ASM_OPENRISC_SPR_H
14*4882a593Smuzhiyun #define __ASM_OPENRISC_SPR_H
15*4882a593Smuzhiyun
16*4882a593Smuzhiyun #define mtspr(_spr, _val) __asm__ __volatile__ ( \
17*4882a593Smuzhiyun "l.mtspr r0,%1,%0" \
18*4882a593Smuzhiyun : : "K" (_spr), "r" (_val))
19*4882a593Smuzhiyun #define mtspr_off(_spr, _off, _val) __asm__ __volatile__ ( \
20*4882a593Smuzhiyun "l.mtspr %0,%1,%2" \
21*4882a593Smuzhiyun : : "r" (_off), "r" (_val), "K" (_spr))
22*4882a593Smuzhiyun
mfspr(unsigned long add)23*4882a593Smuzhiyun static inline unsigned long mfspr(unsigned long add)
24*4882a593Smuzhiyun {
25*4882a593Smuzhiyun unsigned long ret;
26*4882a593Smuzhiyun __asm__ __volatile__ ("l.mfspr %0,r0,%1" : "=r" (ret) : "K" (add));
27*4882a593Smuzhiyun return ret;
28*4882a593Smuzhiyun }
29*4882a593Smuzhiyun
mfspr_off(unsigned long add,unsigned long offset)30*4882a593Smuzhiyun static inline unsigned long mfspr_off(unsigned long add, unsigned long offset)
31*4882a593Smuzhiyun {
32*4882a593Smuzhiyun unsigned long ret;
33*4882a593Smuzhiyun __asm__ __volatile__ ("l.mfspr %0,%1,%2" : "=r" (ret)
34*4882a593Smuzhiyun : "r" (offset), "K" (add));
35*4882a593Smuzhiyun return ret;
36*4882a593Smuzhiyun }
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun #endif
39