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| author | Christian Cunningham <cc@localhost> | 2021-12-23 21:42:32 -0800 |
|---|---|---|
| committer | Christian Cunningham <cc@localhost> | 2021-12-23 21:42:32 -0800 |
| commit | 9bc94963aefcb5028c3529ff59c974e48d814690 (patch) | |
| tree | eb90b58da616bce55176b4f8f72a238cce19cd0d /src/cpu/atomic/swap.h | |
| parent | a905c499ceddc47a5fcd46f863e453919c196722 (diff) | |
Intro USB
Diffstat (limited to 'src/cpu/atomic/swap.h')
| -rw-r--r-- | src/cpu/atomic/swap.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/cpu/atomic/swap.h b/src/cpu/atomic/swap.h index 5e8ff57..374dd97 100644 --- a/src/cpu/atomic/swap.h +++ b/src/cpu/atomic/swap.h @@ -6,6 +6,7 @@ /// https://elixir.bootlin.com/linux/v4.9/source/arch/arm/include/asm/spinlock.h /// https://elixir.bootlin.com/linux/v4.9/source/arch/arm/include/asm/spinlock_types.h#L23 /// 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) { unsigned long tmp, current_lock_value; |