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75a6faf6 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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2 | /* |
3 | * aQuantia Corporation Network Driver | |
4 | * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved | |
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5 | */ |
6 | ||
7 | /* File aq_utils.h: Useful macro and structures used in all layers of driver. */ | |
8 | ||
9 | #ifndef AQ_UTILS_H | |
10 | #define AQ_UTILS_H | |
11 | ||
12 | #include "aq_common.h" | |
13 | ||
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14 | static inline void aq_utils_obj_set(atomic_t *flags, u32 mask) |
15 | { | |
16 | unsigned long flags_old, flags_new; | |
17 | ||
18 | do { | |
19 | flags_old = atomic_read(flags); | |
20 | flags_new = flags_old | (mask); | |
21 | } while (atomic_cmpxchg(flags, flags_old, flags_new) != flags_old); | |
22 | } | |
23 | ||
24 | static inline void aq_utils_obj_clear(atomic_t *flags, u32 mask) | |
25 | { | |
26 | unsigned long flags_old, flags_new; | |
27 | ||
28 | do { | |
29 | flags_old = atomic_read(flags); | |
30 | flags_new = flags_old & ~(mask); | |
31 | } while (atomic_cmpxchg(flags, flags_old, flags_new) != flags_old); | |
32 | } | |
33 | ||
34 | static inline bool aq_utils_obj_test(atomic_t *flags, u32 mask) | |
35 | { | |
36 | return atomic_read(flags) & mask; | |
37 | } | |
38 | ||
39 | #endif /* AQ_UTILS_H */ |