diff options
Diffstat (limited to 'arch/alpha/include/asm/spinlock.h')
| -rw-r--r-- | arch/alpha/include/asm/spinlock.h | 28 |
1 files changed, 8 insertions, 20 deletions
diff --git a/arch/alpha/include/asm/spinlock.h b/arch/alpha/include/asm/spinlock.h index 3bba21e41b81..1221cbb86a6f 100644 --- a/arch/alpha/include/asm/spinlock.h +++ b/arch/alpha/include/asm/spinlock.h @@ -1,8 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ALPHA_SPINLOCK_H #define _ALPHA_SPINLOCK_H #include <linux/kernel.h> #include <asm/current.h> +#include <asm/barrier.h> +#include <asm/processor.h> /* * Simple spin lock operations. There are two variants, one clears IRQ's @@ -11,10 +14,12 @@ * We make no fairness assumptions. They have a cost. */ -#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) #define arch_spin_is_locked(x) ((x)->lock != 0) -#define arch_spin_unlock_wait(x) \ - do { cpu_relax(); } while ((x)->lock) + +static inline int arch_spin_value_unlocked(arch_spinlock_t lock) +{ + return lock.lock == 0; +} static inline void arch_spin_unlock(arch_spinlock_t * lock) { @@ -49,16 +54,6 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock) /***********************************************************/ -static inline int arch_read_can_lock(arch_rwlock_t *lock) -{ - return (lock->lock & 1) == 0; -} - -static inline int arch_write_can_lock(arch_rwlock_t *lock) -{ - return lock->lock == 0; -} - static inline void arch_read_lock(arch_rwlock_t *lock) { long regx; @@ -165,11 +160,4 @@ static inline void arch_write_unlock(arch_rwlock_t * lock) lock->lock = 0; } -#define arch_read_lock_flags(lock, flags) arch_read_lock(lock) -#define arch_write_lock_flags(lock, flags) arch_write_lock(lock) - -#define arch_spin_relax(lock) cpu_relax() -#define arch_read_relax(lock) cpu_relax() -#define arch_write_relax(lock) cpu_relax() - #endif /* _ALPHA_SPINLOCK_H */ |