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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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a4c1887d4c
The arch_{read,spin,write}_lock_flags() macros are simply mapped to the
non-flags versions by the majority of architectures, so do this in core
code and remove the dummy implementations. Also remove the implementation
in spinlock_up.h, since all callers of do_raw_spin_lock_flags() call
local_irq_save(flags) anyway.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: paulmck@linux.vnet.ibm.com
Link: http://lkml.kernel.org/r/1507055129-12300-4-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
82 lines
1.9 KiB
C
82 lines
1.9 KiB
C
/*
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* Copyright 2004-2009 Analog Devices Inc.
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*
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* Licensed under the GPL-2 or later.
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*/
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#ifndef __BFIN_SPINLOCK_H
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#define __BFIN_SPINLOCK_H
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#ifndef CONFIG_SMP
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# include <asm-generic/spinlock.h>
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#else
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#include <linux/atomic.h>
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#include <asm/processor.h>
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#include <asm/barrier.h>
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asmlinkage int __raw_spin_is_locked_asm(volatile int *ptr);
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asmlinkage void __raw_spin_lock_asm(volatile int *ptr);
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asmlinkage int __raw_spin_trylock_asm(volatile int *ptr);
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asmlinkage void __raw_spin_unlock_asm(volatile int *ptr);
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asmlinkage void __raw_read_lock_asm(volatile int *ptr);
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asmlinkage int __raw_read_trylock_asm(volatile int *ptr);
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asmlinkage void __raw_read_unlock_asm(volatile int *ptr);
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asmlinkage void __raw_write_lock_asm(volatile int *ptr);
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asmlinkage int __raw_write_trylock_asm(volatile int *ptr);
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asmlinkage void __raw_write_unlock_asm(volatile int *ptr);
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static inline int arch_spin_is_locked(arch_spinlock_t *lock)
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{
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return __raw_spin_is_locked_asm(&lock->lock);
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}
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static inline void arch_spin_lock(arch_spinlock_t *lock)
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{
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__raw_spin_lock_asm(&lock->lock);
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}
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static inline int arch_spin_trylock(arch_spinlock_t *lock)
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{
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return __raw_spin_trylock_asm(&lock->lock);
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}
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static inline void arch_spin_unlock(arch_spinlock_t *lock)
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{
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__raw_spin_unlock_asm(&lock->lock);
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}
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static inline void arch_read_lock(arch_rwlock_t *rw)
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{
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__raw_read_lock_asm(&rw->lock);
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}
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static inline int arch_read_trylock(arch_rwlock_t *rw)
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{
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return __raw_read_trylock_asm(&rw->lock);
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}
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static inline void arch_read_unlock(arch_rwlock_t *rw)
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{
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__raw_read_unlock_asm(&rw->lock);
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}
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static inline void arch_write_lock(arch_rwlock_t *rw)
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{
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__raw_write_lock_asm(&rw->lock);
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}
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static inline int arch_write_trylock(arch_rwlock_t *rw)
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{
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return __raw_write_trylock_asm(&rw->lock);
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}
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static inline void arch_write_unlock(arch_rwlock_t *rw)
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{
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__raw_write_unlock_asm(&rw->lock);
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}
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#endif
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#endif /* !__BFIN_SPINLOCK_H */
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