39 строки
991 B
C
39 строки
991 B
C
/* 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 <jonas@southpole.se>
|
|
*/
|
|
|
|
#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
|