162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-only */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * aQuantia Corporation Network Driver 462306a36Sopenharmony_ci * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved 562306a36Sopenharmony_ci */ 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci/* File aq_utils.h: Useful macro and structures used in all layers of driver. */ 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci#ifndef AQ_UTILS_H 1062306a36Sopenharmony_ci#define AQ_UTILS_H 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ci#include "aq_common.h" 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_cistatic inline void aq_utils_obj_set(atomic_t *flags, u32 mask) 1562306a36Sopenharmony_ci{ 1662306a36Sopenharmony_ci unsigned long flags_old, flags_new; 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ci do { 1962306a36Sopenharmony_ci flags_old = atomic_read(flags); 2062306a36Sopenharmony_ci flags_new = flags_old | (mask); 2162306a36Sopenharmony_ci } while (atomic_cmpxchg(flags, flags_old, flags_new) != flags_old); 2262306a36Sopenharmony_ci} 2362306a36Sopenharmony_ci 2462306a36Sopenharmony_cistatic inline void aq_utils_obj_clear(atomic_t *flags, u32 mask) 2562306a36Sopenharmony_ci{ 2662306a36Sopenharmony_ci unsigned long flags_old, flags_new; 2762306a36Sopenharmony_ci 2862306a36Sopenharmony_ci do { 2962306a36Sopenharmony_ci flags_old = atomic_read(flags); 3062306a36Sopenharmony_ci flags_new = flags_old & ~(mask); 3162306a36Sopenharmony_ci } while (atomic_cmpxchg(flags, flags_old, flags_new) != flags_old); 3262306a36Sopenharmony_ci} 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_cistatic inline bool aq_utils_obj_test(atomic_t *flags, u32 mask) 3562306a36Sopenharmony_ci{ 3662306a36Sopenharmony_ci return atomic_read(flags) & mask; 3762306a36Sopenharmony_ci} 3862306a36Sopenharmony_ci 3962306a36Sopenharmony_ci#endif /* AQ_UTILS_H */ 40