atomic.h File Reference

#include <arch/encoding.h>

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Data Structures
struct	atomic_t

Macros
#define	disable_irqsave()   clear_csr(mstatus, MSTATUS_MIE)
#define	enable_irqrestore(flags)   set_csr(mstatus, (flags) & MSTATUS_MIE)
#define	atomic_set(v, val)   ((v)->counter = (val))
#define	atomic_read(v)   ((v)->counter)

Functions
static int	atomic_add (atomic_t *v, int inc)
static int	atomic_swap (atomic_t *v, int swp)
static int	atomic_cas (atomic_t *v, int cmp, int swp)
static int	atomic_inc (atomic_t *v)
static int	atomic_dec (atomic_t *v)

Macro Definition Documentation

atomic_read

#define atomic_read

(

v

)

((v)->counter)

Definition at line 14 of file atomic.h.

atomic_set

#define atomic_set	(		v,
			val
	)		((v)->counter = (val))

Definition at line 13 of file atomic.h.

disable_irqsave

#define disable_irqsave

(

)

clear_csr(mstatus, MSTATUS_MIE)

Definition at line 10 of file atomic.h.

enable_irqrestore

#define enable_irqrestore

(

flags

)

set_csr(mstatus, (flags) & MSTATUS_MIE)

Definition at line 11 of file atomic.h.

Function Documentation

atomic_add()

static int atomic_add ( atomic_t *  v, int  inc  )

inlinestatic

Definition at line 24 of file atomic.h.

References atomic_t::counter, disable_irqsave, and enable_irqrestore.

Referenced by atomic_dec(), atomic_inc(), and smp_pause().

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atomic_cas()

static int atomic_cas ( atomic_t *  v, int  cmp, int  swp  )

inlinestatic

Definition at line 42 of file atomic.h.

References atomic_t::counter, disable_irqsave, and enable_irqrestore.

atomic_dec()

static int atomic_dec ( atomic_t *  v )

inlinestatic

Definition at line 56 of file atomic.h.

References atomic_add().

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atomic_inc()

static int atomic_inc ( atomic_t *  v )

inlinestatic

Definition at line 51 of file atomic.h.

References atomic_add().

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atomic_swap()

static int atomic_swap ( atomic_t *  v, int  swp  )

inlinestatic

Definition at line 33 of file atomic.h.

References atomic_t::counter, disable_irqsave, and enable_irqrestore.

Referenced by spinlock_lock().

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