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xtensa: use asm-generic/atomic.h

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Make use of asm-generic/atomic.h.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Chris Packham 2018-09-08 21:39:07 +12:00 committed by Tom Rini
parent 02df9c5a67
commit 47cef9c805
1 changed files with 1 additions and 43 deletions
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44
arch/xtensa/include/asm/atomic.h
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@ -7,48 +7,6 @@
#define _XTENSA_ATOMIC_H
#include <asm/system.h>
typedef struct { volatile int counter; } atomic_t;
#define ATOMIC_INIT(i) { (i) }
#define atomic_read(v) ((v)->counter)
#define atomic_set(v, i) ((v)->counter = (i))
static inline void atomic_add(int i, atomic_t *v)
{
unsigned long flags;
local_irq_save(flags);
v->counter += i;
local_irq_restore(flags);
}
static inline void atomic_sub(int i, atomic_t *v)
{
unsigned long flags;
local_irq_save(flags);
v->counter -= i;
local_irq_restore(flags);
}
static inline void atomic_inc(atomic_t *v)
{
unsigned long flags;
local_irq_save(flags);
++v->counter;
local_irq_restore(flags);
}
static inline void atomic_dec(atomic_t *v)
{
unsigned long flags;
local_irq_save(flags);
--v->counter;
local_irq_restore(flags);
}
#include <asm-generic/atomic.h>
#endif