diff options
Diffstat (limited to 'arch/hexagon/include/asm/atomic.h')
| -rw-r--r-- | arch/hexagon/include/asm/atomic.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/arch/hexagon/include/asm/atomic.h b/arch/hexagon/include/asm/atomic.h index 7aae4cb2a29..17dc63780c0 100644 --- a/arch/hexagon/include/asm/atomic.h +++ b/arch/hexagon/include/asm/atomic.h @@ -26,7 +26,20 @@ #include <asm/cmpxchg.h> #define ATOMIC_INIT(i) { (i) } -#define atomic_set(v, i) ((v)->counter = (i)) + +/* Normal writes in our arch don't clear lock reservations */ + +static inline void atomic_set(atomic_t *v, int new) +{ + asm volatile( + "1: r6 = memw_locked(%0);\n" + " memw_locked(%0,p0) = %1;\n" + " if (!P0) jump 1b;\n" + : + : "r" (&v->counter), "r" (new) + : "memory", "p0", "r6" + ); +} /** * atomic_read - reads a word, atomically |