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author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
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committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/openrisc/include/asm/spr.h | |
parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'arch/openrisc/include/asm/spr.h')
-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 00000000..1cccb42d --- /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 |