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Diffstat (limited to 'include/os/linux/spl/sys/atomic.h')
| -rw-r--r-- | include/os/linux/spl/sys/atomic.h | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/include/os/linux/spl/sys/atomic.h b/include/os/linux/spl/sys/atomic.h deleted file mode 100644 index f4bcd58bd281..000000000000 --- a/include/os/linux/spl/sys/atomic.h +++ /dev/null @@ -1,115 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. - * Copyright (C) 2007 The Regents of the University of California. - * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). - * Written by Brian Behlendorf <behlendorf1@llnl.gov>. - * UCRL-CODE-235197 - * - * This file is part of the SPL, Solaris Porting Layer. - * - * The SPL is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * The SPL is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - * You should have received a copy of the GNU General Public License along - * with the SPL. If not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef _SPL_ATOMIC_H -#define _SPL_ATOMIC_H - -#include <linux/module.h> -#include <linux/spinlock.h> -#include <sys/types.h> - -/* - * Map the atomic_* functions to the Linux counterparts. This relies on the - * fact that the atomic types are internally really a uint32 or uint64. If - * this were to change an alternate approach would be needed. - * - * N.B. Due to the limitations of the original API atomicity is not strictly - * preserved when using the 64-bit functions on a 32-bit system. In order - * to support this all consumers would need to be updated to use the Linux - * provided atomic_t and atomic64_t types. - */ -#define atomic_inc_32(v) atomic_inc((atomic_t *)(v)) -#define atomic_dec_32(v) atomic_dec((atomic_t *)(v)) -#define atomic_add_32(v, i) atomic_add((i), (atomic_t *)(v)) -#define atomic_sub_32(v, i) atomic_sub((i), (atomic_t *)(v)) -#define atomic_inc_32_nv(v) atomic_inc_return((atomic_t *)(v)) -#define atomic_dec_32_nv(v) atomic_dec_return((atomic_t *)(v)) -#define atomic_add_32_nv(v, i) atomic_add_return((i), (atomic_t *)(v)) -#define atomic_sub_32_nv(v, i) atomic_sub_return((i), (atomic_t *)(v)) -#define atomic_cas_32(v, x, y) atomic_cmpxchg((atomic_t *)(v), x, y) -#define atomic_swap_32(v, x) atomic_xchg((atomic_t *)(v), x) -#define atomic_load_32(v) atomic_read((atomic_t *)(v)) -#define atomic_store_32(v, x) atomic_set((atomic_t *)(v), x) -#define atomic_inc_64(v) atomic64_inc((atomic64_t *)(v)) -#define atomic_dec_64(v) atomic64_dec((atomic64_t *)(v)) -#define atomic_add_64(v, i) atomic64_add((i), (atomic64_t *)(v)) -#define atomic_sub_64(v, i) atomic64_sub((i), (atomic64_t *)(v)) -#define atomic_inc_64_nv(v) atomic64_inc_return((atomic64_t *)(v)) -#define atomic_dec_64_nv(v) atomic64_dec_return((atomic64_t *)(v)) -#define atomic_add_64_nv(v, i) atomic64_add_return((i), (atomic64_t *)(v)) -#define atomic_sub_64_nv(v, i) atomic64_sub_return((i), (atomic64_t *)(v)) -#define atomic_cas_64(v, x, y) atomic64_cmpxchg((atomic64_t *)(v), x, y) -#define atomic_swap_64(v, x) atomic64_xchg((atomic64_t *)(v), x) -#define atomic_load_64(v) atomic64_read((atomic64_t *)(v)) -#define atomic_store_64(v, x) atomic64_set((atomic64_t *)(v), x) - -#ifdef _LP64 -static __inline__ void * -atomic_cas_ptr(volatile void *target, void *cmp, void *newval) -{ - return ((void *)atomic_cas_64((volatile uint64_t *)target, - (uint64_t)cmp, (uint64_t)newval)); -} -static __inline__ void * -atomic_swap_ptr(volatile void *target, void *newval) -{ - return ((void *)atomic_swap_64((volatile uint64_t *)target, - (uint64_t)newval)); -} -static __inline__ void * -atomic_load_ptr(volatile void *target) -{ - return ((void *)atomic_load_64((volatile uint64_t *)target)); -} -static __inline__ void -atomic_store_ptr(volatile void *target, void *newval) -{ - atomic_store_64((volatile uint64_t *)target, (uint64_t)newval); -} -#else /* _LP64 */ -static __inline__ void * -atomic_cas_ptr(volatile void *target, void *cmp, void *newval) -{ - return ((void *)atomic_cas_32((volatile uint32_t *)target, - (uint32_t)cmp, (uint32_t)newval)); -} -static __inline__ void * -atomic_swap_ptr(volatile void *target, void *newval) -{ - return ((void *)atomic_swap_32((volatile uint32_t *)target, - (uint32_t)newval)); -} -static __inline__ void * -atomic_load_ptr(volatile void *target) -{ - return ((void *)atomic_load_32((volatile uint32_t *)target)); -} -static __inline__ void -atomic_store_ptr(volatile void *target, void *newval) -{ - atomic_store_32((volatile uint32_t *)target, (uint32_t)newval); -} -#endif /* _LP64 */ - -#endif /* _SPL_ATOMIC_H */ |