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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/openrisc/include/asm/spr.h | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | arch/openrisc/include/asm/spr.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/openrisc/include/asm/spr.h b/arch/openrisc/include/asm/spr.h new file mode 100644 index 000000000..1cccb42dd --- /dev/null +++ b/arch/openrisc/include/asm/spr.h @@ -0,0 +1,42 @@ +/* + * 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> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#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 |