| Nicolas Pitre | 823d0f4 | 2006-01-09 15:59:18 -0800 | [diff] [blame] | 1 | /* |
| Russell King | 4baa992 | 2008-08-02 10:55:55 +0100 | [diff] [blame] | 2 | * arch/arm/include/asm/mutex.h |
| Nicolas Pitre | 823d0f4 | 2006-01-09 15:59:18 -0800 | [diff] [blame] | 3 | * |
| 4 | * ARM optimized mutex locking primitives |
| 5 | * |
| 6 | * Please look into asm-generic/mutex-xchg.h for a formal definition. |
| 7 | */ |
| 8 | #ifndef _ASM_MUTEX_H |
| 9 | #define _ASM_MUTEX_H |
| Nicolas Pitre | 823d0f4 | 2006-01-09 15:59:18 -0800 | [diff] [blame] | 10 | /* |
| Will Deacon | a76d7bd | 2012-07-13 19:15:40 +0100 | [diff] [blame] | 11 | * On pre-ARMv6 hardware this results in a swp-based implementation, |
| 12 | * which is the most efficient. For ARMv6+, we emit a pair of exclusive |
| 13 | * accesses instead. |
| Nicolas Pitre | 823d0f4 | 2006-01-09 15:59:18 -0800 | [diff] [blame] | 14 | */ |
| Will Deacon | a76d7bd | 2012-07-13 19:15:40 +0100 | [diff] [blame] | 15 | #include <asm-generic/mutex-xchg.h> |
| Nicolas Pitre | 823d0f4 | 2006-01-09 15:59:18 -0800 | [diff] [blame] | 16 | #endif |