diff options
Diffstat (limited to 'src/cpu/atomic/swap.h')
| -rw-r--r-- | src/cpu/atomic/swap.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/cpu/atomic/swap.h b/src/cpu/atomic/swap.h index 374dd97..3584d4e 100644 --- a/src/cpu/atomic/swap.h +++ b/src/cpu/atomic/swap.h @@ -8,7 +8,8 @@ /// https://www.cs.uic.edu/~jbell/CourseNotes/OperatingSystems/3_Processes.html /// https://developer.arm.com/documentation/dht0008/a/arm-synchronization-primitives/practical-uses/implementing-a-semaphore?lang=en -static inline void atm_lock(unsigned long pid, unsigned long* addr) { +static inline void atm_lock(unsigned long pid, unsigned long* addr) +{ unsigned long tmp, current_lock_value; asm volatile( "1: ldrex %0, [%3]\n" @@ -23,7 +24,8 @@ static inline void atm_lock(unsigned long pid, unsigned long* addr) { : "cc"); } -static inline void atm_release(unsigned long* addr) { +static inline void atm_release(unsigned long* addr) +{ unsigned long cleared = NULL_PID; asm volatile( " dmb\n" |