24e2e951b9
- @v & @i need to be @param v & @param i - add the @file command Change-Id: Ib4fb609629bc2dfcf1869bdf7a4d4cd9fea283cc Signed-off-by: Martin Roth <martin.roth@se-eng.com> Reviewed-on: http://review.coreboot.org/8075 Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com> Tested-by: build bot (Jenkins)
57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
#ifndef SMP_ATOMIC_H
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#define SMP_ATOMIC_H
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#if CONFIG_SMP
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#include <arch/smp/atomic.h>
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#else
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typedef struct { int counter; } atomic_t;
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#define ATOMIC_INIT(i) { (i) }
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/**
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* @file include/smp/atomic.h
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*/
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/**
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* atomic_read - read atomic variable
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* @param v: pointer of type atomic_t
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*
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* Atomically reads the value of v. Note that the guaranteed
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* useful range of an atomic_t is only 24 bits.
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*/
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#define atomic_read(v) ((v)->counter)
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/**
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* atomic_set - set atomic variable
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* @param v: pointer of type atomic_t
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* @param i: required value
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*
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* Atomically sets the value of v to i. Note that the guaranteed
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* useful range of an atomic_t is only 24 bits.
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*/
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#define atomic_set(v,i) (((v)->counter) = (i))
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/**
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* atomic_inc - increment atomic variable
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* @param v: pointer of type atomic_t
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*
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* Atomically increments v by 1. Note that the guaranteed
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* useful range of an atomic_t is only 24 bits.
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*/
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#define atomic_inc(v) (((v)->counter)++)
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/**
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* atomic_dec - decrement atomic variable
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* @param v: pointer of type atomic_t
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*
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* Atomically decrements v by 1. Note that the guaranteed
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* useful range of an atomic_t is only 24 bits.
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*/
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#define atomic_dec(v) (((v)->counter)--)
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#endif /* CONFIG_SMP */
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#endif /* SMP_ATOMIC_H */
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