40 lines
934 B
C
40 lines
934 B
C
|
/* SPDX-License-Identifier: GPL-2.0-only */
|
||
|
|
/*
|
||
|
|
* aQuantia Corporation Network Driver
|
||
|
|
* Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* File aq_utils.h: Useful macro and structures used in all layers of driver. */
|
||
|
|
|
||
|
|
#ifndef AQ_UTILS_H
|
||
|
|
#define AQ_UTILS_H
|
||
|
|
|
||
|
|
#include "aq_common.h"
|
||
|
|
|
||
|
|
static inline void aq_utils_obj_set(atomic_t *flags, u32 mask)
|
||
|
|
{
|
||
|
|
unsigned long flags_old, flags_new;
|
||
|
|
|
||
|
|
do {
|
||
|
|
flags_old = atomic_read(flags);
|
||
|
|
flags_new = flags_old | (mask);
|
||
|
|
} while (atomic_cmpxchg(flags, flags_old, flags_new) != flags_old);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void aq_utils_obj_clear(atomic_t *flags, u32 mask)
|
||
|
|
{
|
||
|
|
unsigned long flags_old, flags_new;
|
||
|
|
|
||
|
|
do {
|
||
|
|
flags_old = atomic_read(flags);
|
||
|
|
flags_new = flags_old & ~(mask);
|
||
|
|
} while (atomic_cmpxchg(flags, flags_old, flags_new) != flags_old);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool aq_utils_obj_test(atomic_t *flags, u32 mask)
|
||
|
|
{
|
||
|
|
return atomic_read(flags) & mask;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* AQ_UTILS_H */
|