| Jonas Bonn | 58e0166 | 2011-06-04 22:43:49 +0300 | [diff] [blame] | 1 | /* |
| 2 | * OpenRISC Linux |
| 3 | * |
| 4 | * Linux architectural port borrowing liberally from similar works of |
| 5 | * others. All original copyrights apply as per the original source |
| 6 | * declaration. |
| 7 | * |
| 8 | * OpenRISC implementation: |
| 9 | * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of the GNU General Public License as published by |
| 13 | * the Free Software Foundation; either version 2 of the License, or |
| 14 | * (at your option) any later version. |
| 15 | */ |
| 16 | |
| 17 | #ifndef __ASM_OPENRISC_SPR_H |
| 18 | #define __ASM_OPENRISC_SPR_H |
| 19 | |
| 20 | #define mtspr(_spr, _val) __asm__ __volatile__ ( \ |
| 21 | "l.mtspr r0,%1,%0" \ |
| 22 | : : "K" (_spr), "r" (_val)) |
| 23 | #define mtspr_off(_spr, _off, _val) __asm__ __volatile__ ( \ |
| 24 | "l.mtspr %0,%1,%2" \ |
| 25 | : : "r" (_off), "r" (_val), "K" (_spr)) |
| 26 | |
| 27 | static inline unsigned long mfspr(unsigned long add) |
| 28 | { |
| 29 | unsigned long ret; |
| 30 | __asm__ __volatile__ ("l.mfspr %0,r0,%1" : "=r" (ret) : "K" (add)); |
| 31 | return ret; |
| 32 | } |
| 33 | |
| 34 | static inline unsigned long mfspr_off(unsigned long add, unsigned long offset) |
| 35 | { |
| 36 | unsigned long ret; |
| 37 | __asm__ __volatile__ ("l.mfspr %0,%1,%2" : "=r" (ret) |
| 38 | : "r" (offset), "K" (add)); |
| 39 | return ret; |
| 40 | } |
| 41 | |
| 42 | #endif |