mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-12-28 16:56:26 +00:00
locking/atomic: Implement atomic{,64,_long}_fetch_{add,sub,and,andnot,or,xor}{,_relaxed,_acquire,_release}()
Now that all the architectures have implemented support for these new atomic primitives add on the generic infrastructure to expose and use it. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Borislav Petkov <bp@suse.de> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Peter Zijlstra
Ingo Molnar
parent
e12133324b
commit
28aa2bda22
@ -112,6 +112,40 @@ static __always_inline void atomic_long_dec(atomic_long_t *l)
|
||||
ATOMIC_LONG_PFX(_dec)(v);
|
||||
}
|
||||
|
||||
#define ATOMIC_LONG_FETCH_OP(op, mo) \
|
||||
static inline long \
|
||||
atomic_long_fetch_##op##mo(long i, atomic_long_t *l) \
|
||||
{ \
|
||||
ATOMIC_LONG_PFX(_t) *v = (ATOMIC_LONG_PFX(_t) *)l; \
|
||||
\
|
||||
return (long)ATOMIC_LONG_PFX(_fetch_##op##mo)(i, v); \
|
||||
}
|
||||
|
||||
ATOMIC_LONG_FETCH_OP(add, )
|
||||
ATOMIC_LONG_FETCH_OP(add, _relaxed)
|
||||
ATOMIC_LONG_FETCH_OP(add, _acquire)
|
||||
ATOMIC_LONG_FETCH_OP(add, _release)
|
||||
ATOMIC_LONG_FETCH_OP(sub, )
|
||||
ATOMIC_LONG_FETCH_OP(sub, _relaxed)
|
||||
ATOMIC_LONG_FETCH_OP(sub, _acquire)
|
||||
ATOMIC_LONG_FETCH_OP(sub, _release)
|
||||
ATOMIC_LONG_FETCH_OP(and, )
|
||||
ATOMIC_LONG_FETCH_OP(and, _relaxed)
|
||||
ATOMIC_LONG_FETCH_OP(and, _acquire)
|
||||
ATOMIC_LONG_FETCH_OP(and, _release)
|
||||
ATOMIC_LONG_FETCH_OP(andnot, )
|
||||
ATOMIC_LONG_FETCH_OP(andnot, _relaxed)
|
||||
ATOMIC_LONG_FETCH_OP(andnot, _acquire)
|
||||
ATOMIC_LONG_FETCH_OP(andnot, _release)
|
||||
ATOMIC_LONG_FETCH_OP(or, )
|
||||
ATOMIC_LONG_FETCH_OP(or, _relaxed)
|
||||
ATOMIC_LONG_FETCH_OP(or, _acquire)
|
||||
ATOMIC_LONG_FETCH_OP(or, _release)
|
||||
ATOMIC_LONG_FETCH_OP(xor, )
|
||||
ATOMIC_LONG_FETCH_OP(xor, _relaxed)
|
||||
ATOMIC_LONG_FETCH_OP(xor, _acquire)
|
||||
ATOMIC_LONG_FETCH_OP(xor, _release)
|
||||
|
||||
#define ATOMIC_LONG_OP(op) \
|
||||
static __always_inline void \
|
||||
atomic_long_##op(long i, atomic_long_t *l) \
|
||||
@ -124,9 +158,9 @@ atomic_long_##op(long i, atomic_long_t *l) \
|
||||
ATOMIC_LONG_OP(add)
|
||||
ATOMIC_LONG_OP(sub)
|
||||
ATOMIC_LONG_OP(and)
|
||||
ATOMIC_LONG_OP(andnot)
|
||||
ATOMIC_LONG_OP(or)
|
||||
ATOMIC_LONG_OP(xor)
|
||||
ATOMIC_LONG_OP(andnot)
|
||||
|
||||
#undef ATOMIC_LONG_OP
|
||||
|
||||
|
||||
@ -61,6 +61,18 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \
|
||||
return c c_op i; \
|
||||
}
|
||||
|
||||
#define ATOMIC_FETCH_OP(op, c_op) \
|
||||
static inline int atomic_fetch_##op(int i, atomic_t *v) \
|
||||
{ \
|
||||
int c, old; \
|
||||
\
|
||||
c = v->counter; \
|
||||
while ((old = cmpxchg(&v->counter, c, c c_op i)) != c) \
|
||||
c = old; \
|
||||
\
|
||||
return c; \
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
#include <linux/irqflags.h>
|
||||
@ -88,6 +100,20 @@ static inline int atomic_##op##_return(int i, atomic_t *v) \
|
||||
return ret; \
|
||||
}
|
||||
|
||||
#define ATOMIC_FETCH_OP(op, c_op) \
|
||||
static inline int atomic_fetch_##op(int i, atomic_t *v) \
|
||||
{ \
|
||||
unsigned long flags; \
|
||||
int ret; \
|
||||
\
|
||||
raw_local_irq_save(flags); \
|
||||
ret = v->counter; \
|
||||
v->counter = v->counter c_op i; \
|
||||
raw_local_irq_restore(flags); \
|
||||
\
|
||||
return ret; \
|
||||
}
|
||||
|
||||
#endif /* CONFIG_SMP */
|
||||
|
||||
#ifndef atomic_add_return
|
||||
@ -98,6 +124,28 @@ ATOMIC_OP_RETURN(add, +)
|
||||
ATOMIC_OP_RETURN(sub, -)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_add
|
||||
ATOMIC_FETCH_OP(add, +)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_sub
|
||||
ATOMIC_FETCH_OP(sub, -)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_and
|
||||
ATOMIC_FETCH_OP(and, &)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_or
|
||||
#define atomic_fetch_or atomic_fetch_or
|
||||
|
||||
ATOMIC_FETCH_OP(or, |)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_xor
|
||||
ATOMIC_FETCH_OP(xor, ^)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_and
|
||||
ATOMIC_OP(and, &)
|
||||
#endif
|
||||
@ -110,6 +158,7 @@ ATOMIC_OP(or, |)
|
||||
ATOMIC_OP(xor, ^)
|
||||
#endif
|
||||
|
||||
#undef ATOMIC_FETCH_OP
|
||||
#undef ATOMIC_OP_RETURN
|
||||
#undef ATOMIC_OP
|
||||
|
||||
|
||||
@ -27,16 +27,23 @@ extern void atomic64_##op(long long a, atomic64_t *v);
|
||||
#define ATOMIC64_OP_RETURN(op) \
|
||||
extern long long atomic64_##op##_return(long long a, atomic64_t *v);
|
||||
|
||||
#define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_OP_RETURN(op)
|
||||
#define ATOMIC64_FETCH_OP(op) \
|
||||
extern long long atomic64_fetch_##op(long long a, atomic64_t *v);
|
||||
|
||||
#define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_OP_RETURN(op) ATOMIC64_FETCH_OP(op)
|
||||
|
||||
ATOMIC64_OPS(add)
|
||||
ATOMIC64_OPS(sub)
|
||||
|
||||
ATOMIC64_OP(and)
|
||||
ATOMIC64_OP(or)
|
||||
ATOMIC64_OP(xor)
|
||||
#undef ATOMIC64_OPS
|
||||
#define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_FETCH_OP(op)
|
||||
|
||||
ATOMIC64_OPS(and)
|
||||
ATOMIC64_OPS(or)
|
||||
ATOMIC64_OPS(xor)
|
||||
|
||||
#undef ATOMIC64_OPS
|
||||
#undef ATOMIC64_FETCH_OP
|
||||
#undef ATOMIC64_OP_RETURN
|
||||
#undef ATOMIC64_OP
|
||||
|
||||
|
||||
@ -163,6 +163,154 @@
|
||||
#endif
|
||||
#endif /* atomic_dec_return_relaxed */
|
||||
|
||||
|
||||
/* atomic_fetch_add_relaxed */
|
||||
#ifndef atomic_fetch_add_relaxed
|
||||
#define atomic_fetch_add_relaxed atomic_fetch_add
|
||||
#define atomic_fetch_add_acquire atomic_fetch_add
|
||||
#define atomic_fetch_add_release atomic_fetch_add
|
||||
|
||||
#else /* atomic_fetch_add_relaxed */
|
||||
|
||||
#ifndef atomic_fetch_add_acquire
|
||||
#define atomic_fetch_add_acquire(...) \
|
||||
__atomic_op_acquire(atomic_fetch_add, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_add_release
|
||||
#define atomic_fetch_add_release(...) \
|
||||
__atomic_op_release(atomic_fetch_add, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_add
|
||||
#define atomic_fetch_add(...) \
|
||||
__atomic_op_fence(atomic_fetch_add, __VA_ARGS__)
|
||||
#endif
|
||||
#endif /* atomic_fetch_add_relaxed */
|
||||
|
||||
/* atomic_fetch_sub_relaxed */
|
||||
#ifndef atomic_fetch_sub_relaxed
|
||||
#define atomic_fetch_sub_relaxed atomic_fetch_sub
|
||||
#define atomic_fetch_sub_acquire atomic_fetch_sub
|
||||
#define atomic_fetch_sub_release atomic_fetch_sub
|
||||
|
||||
#else /* atomic_fetch_sub_relaxed */
|
||||
|
||||
#ifndef atomic_fetch_sub_acquire
|
||||
#define atomic_fetch_sub_acquire(...) \
|
||||
__atomic_op_acquire(atomic_fetch_sub, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_sub_release
|
||||
#define atomic_fetch_sub_release(...) \
|
||||
__atomic_op_release(atomic_fetch_sub, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_sub
|
||||
#define atomic_fetch_sub(...) \
|
||||
__atomic_op_fence(atomic_fetch_sub, __VA_ARGS__)
|
||||
#endif
|
||||
#endif /* atomic_fetch_sub_relaxed */
|
||||
|
||||
/* atomic_fetch_or_relaxed */
|
||||
#ifndef atomic_fetch_or_relaxed
|
||||
#define atomic_fetch_or_relaxed atomic_fetch_or
|
||||
#define atomic_fetch_or_acquire atomic_fetch_or
|
||||
#define atomic_fetch_or_release atomic_fetch_or
|
||||
|
||||
#else /* atomic_fetch_or_relaxed */
|
||||
|
||||
#ifndef atomic_fetch_or_acquire
|
||||
#define atomic_fetch_or_acquire(...) \
|
||||
__atomic_op_acquire(atomic_fetch_or, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_or_release
|
||||
#define atomic_fetch_or_release(...) \
|
||||
__atomic_op_release(atomic_fetch_or, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_or
|
||||
#define atomic_fetch_or(...) \
|
||||
__atomic_op_fence(atomic_fetch_or, __VA_ARGS__)
|
||||
#endif
|
||||
#endif /* atomic_fetch_or_relaxed */
|
||||
|
||||
/* atomic_fetch_and_relaxed */
|
||||
#ifndef atomic_fetch_and_relaxed
|
||||
#define atomic_fetch_and_relaxed atomic_fetch_and
|
||||
#define atomic_fetch_and_acquire atomic_fetch_and
|
||||
#define atomic_fetch_and_release atomic_fetch_and
|
||||
|
||||
#else /* atomic_fetch_and_relaxed */
|
||||
|
||||
#ifndef atomic_fetch_and_acquire
|
||||
#define atomic_fetch_and_acquire(...) \
|
||||
__atomic_op_acquire(atomic_fetch_and, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_and_release
|
||||
#define atomic_fetch_and_release(...) \
|
||||
__atomic_op_release(atomic_fetch_and, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_and
|
||||
#define atomic_fetch_and(...) \
|
||||
__atomic_op_fence(atomic_fetch_and, __VA_ARGS__)
|
||||
#endif
|
||||
#endif /* atomic_fetch_and_relaxed */
|
||||
|
||||
#ifdef atomic_andnot
|
||||
/* atomic_fetch_andnot_relaxed */
|
||||
#ifndef atomic_fetch_andnot_relaxed
|
||||
#define atomic_fetch_andnot_relaxed atomic_fetch_andnot
|
||||
#define atomic_fetch_andnot_acquire atomic_fetch_andnot
|
||||
#define atomic_fetch_andnot_release atomic_fetch_andnot
|
||||
|
||||
#else /* atomic_fetch_andnot_relaxed */
|
||||
|
||||
#ifndef atomic_fetch_andnot_acquire
|
||||
#define atomic_fetch_andnot_acquire(...) \
|
||||
__atomic_op_acquire(atomic_fetch_andnot, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_andnot_release
|
||||
#define atomic_fetch_andnot_release(...) \
|
||||
__atomic_op_release(atomic_fetch_andnot, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_andnot
|
||||
#define atomic_fetch_andnot(...) \
|
||||
__atomic_op_fence(atomic_fetch_andnot, __VA_ARGS__)
|
||||
#endif
|
||||
#endif /* atomic_fetch_andnot_relaxed */
|
||||
#endif /* atomic_andnot */
|
||||
|
||||
/* atomic_fetch_xor_relaxed */
|
||||
#ifndef atomic_fetch_xor_relaxed
|
||||
#define atomic_fetch_xor_relaxed atomic_fetch_xor
|
||||
#define atomic_fetch_xor_acquire atomic_fetch_xor
|
||||
#define atomic_fetch_xor_release atomic_fetch_xor
|
||||
|
||||
#else /* atomic_fetch_xor_relaxed */
|
||||
|
||||
#ifndef atomic_fetch_xor_acquire
|
||||
#define atomic_fetch_xor_acquire(...) \
|
||||
__atomic_op_acquire(atomic_fetch_xor, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_xor_release
|
||||
#define atomic_fetch_xor_release(...) \
|
||||
__atomic_op_release(atomic_fetch_xor, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic_fetch_xor
|
||||
#define atomic_fetch_xor(...) \
|
||||
__atomic_op_fence(atomic_fetch_xor, __VA_ARGS__)
|
||||
#endif
|
||||
#endif /* atomic_fetch_xor_relaxed */
|
||||
|
||||
|
||||
/* atomic_xchg_relaxed */
|
||||
#ifndef atomic_xchg_relaxed
|
||||
#define atomic_xchg_relaxed atomic_xchg
|
||||
@ -310,6 +458,26 @@ static inline void atomic_andnot(int i, atomic_t *v)
|
||||
{
|
||||
atomic_and(~i, v);
|
||||
}
|
||||
|
||||
static inline int atomic_fetch_andnot(int i, atomic_t *v)
|
||||
{
|
||||
return atomic_fetch_and(~i, v);
|
||||
}
|
||||
|
||||
static inline int atomic_fetch_andnot_relaxed(int i, atomic_t *v)
|
||||
{
|
||||
return atomic_fetch_and_relaxed(~i, v);
|
||||
}
|
||||
|
||||
static inline int atomic_fetch_andnot_acquire(int i, atomic_t *v)
|
||||
{
|
||||
return atomic_fetch_and_acquire(~i, v);
|
||||
}
|
||||
|
||||
static inline int atomic_fetch_andnot_release(int i, atomic_t *v)
|
||||
{
|
||||
return atomic_fetch_and_release(~i, v);
|
||||
}
|
||||
#endif
|
||||
|
||||
static inline __deprecated void atomic_clear_mask(unsigned int mask, atomic_t *v)
|
||||
@ -535,6 +703,154 @@ static inline int atomic_fetch_or(int mask, atomic_t *p)
|
||||
#endif
|
||||
#endif /* atomic64_dec_return_relaxed */
|
||||
|
||||
|
||||
/* atomic64_fetch_add_relaxed */
|
||||
#ifndef atomic64_fetch_add_relaxed
|
||||
#define atomic64_fetch_add_relaxed atomic64_fetch_add
|
||||
#define atomic64_fetch_add_acquire atomic64_fetch_add
|
||||
#define atomic64_fetch_add_release atomic64_fetch_add
|
||||
|
||||
#else /* atomic64_fetch_add_relaxed */
|
||||
|
||||
#ifndef atomic64_fetch_add_acquire
|
||||
#define atomic64_fetch_add_acquire(...) \
|
||||
__atomic_op_acquire(atomic64_fetch_add, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic64_fetch_add_release
|
||||
#define atomic64_fetch_add_release(...) \
|
||||
__atomic_op_release(atomic64_fetch_add, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic64_fetch_add
|
||||
#define atomic64_fetch_add(...) \
|
||||
__atomic_op_fence(atomic64_fetch_add, __VA_ARGS__)
|
||||
#endif
|
||||
#endif /* atomic64_fetch_add_relaxed */
|
||||
|
||||
/* atomic64_fetch_sub_relaxed */
|
||||
#ifndef atomic64_fetch_sub_relaxed
|
||||
#define atomic64_fetch_sub_relaxed atomic64_fetch_sub
|
||||
#define atomic64_fetch_sub_acquire atomic64_fetch_sub
|
||||
#define atomic64_fetch_sub_release atomic64_fetch_sub
|
||||
|
||||
#else /* atomic64_fetch_sub_relaxed */
|
||||
|
||||
#ifndef atomic64_fetch_sub_acquire
|
||||
#define atomic64_fetch_sub_acquire(...) \
|
||||
__atomic_op_acquire(atomic64_fetch_sub, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic64_fetch_sub_release
|
||||
#define atomic64_fetch_sub_release(...) \
|
||||
__atomic_op_release(atomic64_fetch_sub, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic64_fetch_sub
|
||||
#define atomic64_fetch_sub(...) \
|
||||
__atomic_op_fence(atomic64_fetch_sub, __VA_ARGS__)
|
||||
#endif
|
||||
#endif /* atomic64_fetch_sub_relaxed */
|
||||
|
||||
/* atomic64_fetch_or_relaxed */
|
||||
#ifndef atomic64_fetch_or_relaxed
|
||||
#define atomic64_fetch_or_relaxed atomic64_fetch_or
|
||||
#define atomic64_fetch_or_acquire atomic64_fetch_or
|
||||
#define atomic64_fetch_or_release atomic64_fetch_or
|
||||
|
||||
#else /* atomic64_fetch_or_relaxed */
|
||||
|
||||
#ifndef atomic64_fetch_or_acquire
|
||||
#define atomic64_fetch_or_acquire(...) \
|
||||
__atomic_op_acquire(atomic64_fetch_or, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic64_fetch_or_release
|
||||
#define atomic64_fetch_or_release(...) \
|
||||
__atomic_op_release(atomic64_fetch_or, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic64_fetch_or
|
||||
#define atomic64_fetch_or(...) \
|
||||
__atomic_op_fence(atomic64_fetch_or, __VA_ARGS__)
|
||||
#endif
|
||||
#endif /* atomic64_fetch_or_relaxed */
|
||||
|
||||
/* atomic64_fetch_and_relaxed */
|
||||
#ifndef atomic64_fetch_and_relaxed
|
||||
#define atomic64_fetch_and_relaxed atomic64_fetch_and
|
||||
#define atomic64_fetch_and_acquire atomic64_fetch_and
|
||||
#define atomic64_fetch_and_release atomic64_fetch_and
|
||||
|
||||
#else /* atomic64_fetch_and_relaxed */
|
||||
|
||||
#ifndef atomic64_fetch_and_acquire
|
||||
#define atomic64_fetch_and_acquire(...) \
|
||||
__atomic_op_acquire(atomic64_fetch_and, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic64_fetch_and_release
|
||||
#define atomic64_fetch_and_release(...) \
|
||||
__atomic_op_release(atomic64_fetch_and, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic64_fetch_and
|
||||
#define atomic64_fetch_and(...) \
|
||||
__atomic_op_fence(atomic64_fetch_and, __VA_ARGS__)
|
||||
#endif
|
||||
#endif /* atomic64_fetch_and_relaxed */
|
||||
|
||||
#ifdef atomic64_andnot
|
||||
/* atomic64_fetch_andnot_relaxed */
|
||||
#ifndef atomic64_fetch_andnot_relaxed
|
||||
#define atomic64_fetch_andnot_relaxed atomic64_fetch_andnot
|
||||
#define atomic64_fetch_andnot_acquire atomic64_fetch_andnot
|
||||
#define atomic64_fetch_andnot_release atomic64_fetch_andnot
|
||||
|
||||
#else /* atomic64_fetch_andnot_relaxed */
|
||||
|
||||
#ifndef atomic64_fetch_andnot_acquire
|
||||
#define atomic64_fetch_andnot_acquire(...) \
|
||||
__atomic_op_acquire(atomic64_fetch_andnot, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic64_fetch_andnot_release
|
||||
#define atomic64_fetch_andnot_release(...) \
|
||||
__atomic_op_release(atomic64_fetch_andnot, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic64_fetch_andnot
|
||||
#define atomic64_fetch_andnot(...) \
|
||||
__atomic_op_fence(atomic64_fetch_andnot, __VA_ARGS__)
|
||||
#endif
|
||||
#endif /* atomic64_fetch_andnot_relaxed */
|
||||
#endif /* atomic64_andnot */
|
||||
|
||||
/* atomic64_fetch_xor_relaxed */
|
||||
#ifndef atomic64_fetch_xor_relaxed
|
||||
#define atomic64_fetch_xor_relaxed atomic64_fetch_xor
|
||||
#define atomic64_fetch_xor_acquire atomic64_fetch_xor
|
||||
#define atomic64_fetch_xor_release atomic64_fetch_xor
|
||||
|
||||
#else /* atomic64_fetch_xor_relaxed */
|
||||
|
||||
#ifndef atomic64_fetch_xor_acquire
|
||||
#define atomic64_fetch_xor_acquire(...) \
|
||||
__atomic_op_acquire(atomic64_fetch_xor, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic64_fetch_xor_release
|
||||
#define atomic64_fetch_xor_release(...) \
|
||||
__atomic_op_release(atomic64_fetch_xor, __VA_ARGS__)
|
||||
#endif
|
||||
|
||||
#ifndef atomic64_fetch_xor
|
||||
#define atomic64_fetch_xor(...) \
|
||||
__atomic_op_fence(atomic64_fetch_xor, __VA_ARGS__)
|
||||
#endif
|
||||
#endif /* atomic64_fetch_xor_relaxed */
|
||||
|
||||
|
||||
/* atomic64_xchg_relaxed */
|
||||
#ifndef atomic64_xchg_relaxed
|
||||
#define atomic64_xchg_relaxed atomic64_xchg
|
||||
@ -588,6 +904,26 @@ static inline void atomic64_andnot(long long i, atomic64_t *v)
|
||||
{
|
||||
atomic64_and(~i, v);
|
||||
}
|
||||
|
||||
static inline long long atomic64_fetch_andnot(long long i, atomic64_t *v)
|
||||
{
|
||||
return atomic64_fetch_and(~i, v);
|
||||
}
|
||||
|
||||
static inline long long atomic64_fetch_andnot_relaxed(long long i, atomic64_t *v)
|
||||
{
|
||||
return atomic64_fetch_and_relaxed(~i, v);
|
||||
}
|
||||
|
||||
static inline long long atomic64_fetch_andnot_acquire(long long i, atomic64_t *v)
|
||||
{
|
||||
return atomic64_fetch_and_acquire(~i, v);
|
||||
}
|
||||
|
||||
static inline long long atomic64_fetch_andnot_release(long long i, atomic64_t *v)
|
||||
{
|
||||
return atomic64_fetch_and_release(~i, v);
|
||||
}
|
||||
#endif
|
||||
|
||||
#include <asm-generic/atomic-long.h>
|
||||
|
||||
@ -96,17 +96,41 @@ long long atomic64_##op##_return(long long a, atomic64_t *v) \
|
||||
} \
|
||||
EXPORT_SYMBOL(atomic64_##op##_return);
|
||||
|
||||
#define ATOMIC64_FETCH_OP(op, c_op) \
|
||||
long long atomic64_fetch_##op(long long a, atomic64_t *v) \
|
||||
{ \
|
||||
unsigned long flags; \
|
||||
raw_spinlock_t *lock = lock_addr(v); \
|
||||
long long val; \
|
||||
\
|
||||
raw_spin_lock_irqsave(lock, flags); \
|
||||
val = v->counter; \
|
||||
v->counter c_op a; \
|
||||
raw_spin_unlock_irqrestore(lock, flags); \
|
||||
return val; \
|
||||
} \
|
||||
EXPORT_SYMBOL(atomic64_fetch_##op);
|
||||
|
||||
#define ATOMIC64_OPS(op, c_op) \
|
||||
ATOMIC64_OP(op, c_op) \
|
||||
ATOMIC64_OP_RETURN(op, c_op)
|
||||
ATOMIC64_OP_RETURN(op, c_op) \
|
||||
ATOMIC64_FETCH_OP(op, c_op)
|
||||
|
||||
ATOMIC64_OPS(add, +=)
|
||||
ATOMIC64_OPS(sub, -=)
|
||||
ATOMIC64_OP(and, &=)
|
||||
ATOMIC64_OP(or, |=)
|
||||
ATOMIC64_OP(xor, ^=)
|
||||
|
||||
#undef ATOMIC64_OPS
|
||||
#define ATOMIC64_OPS(op, c_op) \
|
||||
ATOMIC64_OP(op, c_op) \
|
||||
ATOMIC64_OP_RETURN(op, c_op) \
|
||||
ATOMIC64_FETCH_OP(op, c_op)
|
||||
|
||||
ATOMIC64_OPS(and, &=)
|
||||
ATOMIC64_OPS(or, |=)
|
||||
ATOMIC64_OPS(xor, ^=)
|
||||
|
||||
#undef ATOMIC64_OPS
|
||||
#undef ATOMIC64_FETCH_OP
|
||||
#undef ATOMIC64_OP_RETURN
|
||||
#undef ATOMIC64_OP
|
||||
|
||||
|
||||
@ -53,11 +53,25 @@ do { \
|
||||
BUG_ON(atomic##bit##_read(&v) != r); \
|
||||
} while (0)
|
||||
|
||||
#define TEST_FETCH(bit, op, c_op, val) \
|
||||
do { \
|
||||
atomic##bit##_set(&v, v0); \
|
||||
r = v0; \
|
||||
r c_op val; \
|
||||
BUG_ON(atomic##bit##_##op(val, &v) != v0); \
|
||||
BUG_ON(atomic##bit##_read(&v) != r); \
|
||||
} while (0)
|
||||
|
||||
#define RETURN_FAMILY_TEST(bit, op, c_op, val) \
|
||||
do { \
|
||||
FAMILY_TEST(TEST_RETURN, bit, op, c_op, val); \
|
||||
} while (0)
|
||||
|
||||
#define FETCH_FAMILY_TEST(bit, op, c_op, val) \
|
||||
do { \
|
||||
FAMILY_TEST(TEST_FETCH, bit, op, c_op, val); \
|
||||
} while (0)
|
||||
|
||||
#define TEST_ARGS(bit, op, init, ret, expect, args...) \
|
||||
do { \
|
||||
atomic##bit##_set(&v, init); \
|
||||
@ -114,6 +128,16 @@ static __init void test_atomic(void)
|
||||
RETURN_FAMILY_TEST(, sub_return, -=, onestwos);
|
||||
RETURN_FAMILY_TEST(, sub_return, -=, -one);
|
||||
|
||||
FETCH_FAMILY_TEST(, fetch_add, +=, onestwos);
|
||||
FETCH_FAMILY_TEST(, fetch_add, +=, -one);
|
||||
FETCH_FAMILY_TEST(, fetch_sub, -=, onestwos);
|
||||
FETCH_FAMILY_TEST(, fetch_sub, -=, -one);
|
||||
|
||||
FETCH_FAMILY_TEST(, fetch_or, |=, v1);
|
||||
FETCH_FAMILY_TEST(, fetch_and, &=, v1);
|
||||
FETCH_FAMILY_TEST(, fetch_andnot, &= ~, v1);
|
||||
FETCH_FAMILY_TEST(, fetch_xor, ^=, v1);
|
||||
|
||||
INC_RETURN_FAMILY_TEST(, v0);
|
||||
DEC_RETURN_FAMILY_TEST(, v0);
|
||||
|
||||
@ -154,6 +178,16 @@ static __init void test_atomic64(void)
|
||||
RETURN_FAMILY_TEST(64, sub_return, -=, onestwos);
|
||||
RETURN_FAMILY_TEST(64, sub_return, -=, -one);
|
||||
|
||||
FETCH_FAMILY_TEST(64, fetch_add, +=, onestwos);
|
||||
FETCH_FAMILY_TEST(64, fetch_add, +=, -one);
|
||||
FETCH_FAMILY_TEST(64, fetch_sub, -=, onestwos);
|
||||
FETCH_FAMILY_TEST(64, fetch_sub, -=, -one);
|
||||
|
||||
FETCH_FAMILY_TEST(64, fetch_or, |=, v1);
|
||||
FETCH_FAMILY_TEST(64, fetch_and, &=, v1);
|
||||
FETCH_FAMILY_TEST(64, fetch_andnot, &= ~, v1);
|
||||
FETCH_FAMILY_TEST(64, fetch_xor, ^=, v1);
|
||||
|
||||
INIT(v0);
|
||||
atomic64_inc(&v);
|
||||
r += one;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user