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local_t: ia64 extension

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Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Mathieu Desnoyers 2007-05-08 00:34:46 -07:00 committed by Linus Torvalds
parent a075227948
commit 4431f46f5f
1 changed files with 1 additions and 50 deletions
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51
include/asm-ia64/local.h
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@ -1,50 +1 @@
#ifndef _ASM_IA64_LOCAL_H
#define _ASM_IA64_LOCAL_H
/*
* Copyright (C) 2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
#include <linux/percpu.h>
typedef struct {
atomic64_t val;
} local_t;
#define LOCAL_INIT(i) ((local_t) { { (i) } })
#define local_read(l) atomic64_read(&(l)->val)
#define local_set(l, i) atomic64_set(&(l)->val, i)
#define local_inc(l) atomic64_inc(&(l)->val)
#define local_dec(l) atomic64_dec(&(l)->val)
#define local_add(i, l) atomic64_add((i), &(l)->val)
#define local_sub(i, l) atomic64_sub((i), &(l)->val)
/* Non-atomic variants, i.e., preemption disabled and won't be touched in interrupt, etc. */
#define __local_inc(l) (++(l)->val.counter)
#define __local_dec(l) (--(l)->val.counter)
#define __local_add(i,l) ((l)->val.counter += (i))
#define __local_sub(i,l) ((l)->val.counter -= (i))
/*
* Use these for per-cpu local_t variables. Note they take a variable (eg. mystruct.foo),
* not an address.
*/
#define cpu_local_read(v) local_read(&__ia64_per_cpu_var(v))
#define cpu_local_set(v, i) local_set(&__ia64_per_cpu_var(v), (i))
#define cpu_local_inc(v) local_inc(&__ia64_per_cpu_var(v))
#define cpu_local_dec(v) local_dec(&__ia64_per_cpu_var(v))
#define cpu_local_add(i, v) local_add((i), &__ia64_per_cpu_var(v))
#define cpu_local_sub(i, v) local_sub((i), &__ia64_per_cpu_var(v))
/*
* Non-atomic increments, i.e., preemption disabled and won't be touched in interrupt,
* etc.
*/
#define __cpu_local_inc(v) __local_inc(&__ia64_per_cpu_var(v))
#define __cpu_local_dec(v) __local_dec(&__ia64_per_cpu_var(v))
#define __cpu_local_add(i, v) __local_add((i), &__ia64_per_cpu_var(v))
#define __cpu_local_sub(i, v) __local_sub((i), &__ia64_per_cpu_var(v))
#endif /* _ASM_IA64_LOCAL_H */
#include <asm-generic/local.h>