/*
 * Generic implementation of 64-bit atomics using spinlocks,
 * useful on processors that don't have 64-bit atomic instructions.
 *
 * Copyright © 2009 Paul Mackerras, IBM Corp. <paulus@au1.ibm.com>
 *
 * This program 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.
 */
#ifndef _ASM_GENERIC_ATOMIC64_H
#define _ASM_GENERIC_ATOMIC64_H

typedef struct {
	long long counter;
} atomic64_t;

#define ATOMIC64_INIT(i)	{ (i) }

extern long long atomic64_read(const atomic64_t *v);
extern void	 atomic64_set(atomic64_t *v, long long i);

#define ATOMIC64_OP(op)							\
extern void	 atomic64_##op(long long a, atomic64_t *v);

#define ATOMIC64_OP_RETURN(op)						\
extern long long atomic64_##op##_return(long long a, atomic64_t *v);

#define ATOMIC64_FETCH_OP(op)						\
extern long long atomic64_fetch_##op(long long a, atomic64_t *v);

#define ATOMIC64_OPS(op)	ATOMIC64_OP(op) ATOMIC64_OP_RETURN(op) ATOMIC64_FETCH_OP(op)

ATOMIC64_OPS(add)
ATOMIC64_OPS(sub)

#undef ATOMIC64_OPS
#define ATOMIC64_OPS(op)	ATOMIC64_OP(op) ATOMIC64_FETCH_OP(op)

ATOMIC64_OPS(and)
ATOMIC64_OPS(or)
ATOMIC64_OPS(xor)

#undef ATOMIC64_OPS
#undef ATOMIC64_FETCH_OP
#undef ATOMIC64_OP_RETURN
#undef ATOMIC64_OP

extern long long atomic64_dec_if_positive(atomic64_t *v);
extern long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n);
extern long long atomic64_xchg(atomic64_t *v, long long new);
extern int	 atomic64_add_unless(atomic64_t *v, long long a, long long u);

#define atomic64_add_negative(a, v)	(atomic64_add_return((a), (v)) < 0)
#define atomic64_inc(v)			atomic64_add(1LL, (v))
#define atomic64_inc_return(v)		atomic64_add_return(1LL, (v))
#define atomic64_inc_and_test(v) 	(atomic64_inc_return(v) == 0)
#define atomic64_sub_and_test(a, v)	(atomic64_sub_return((a), (v)) == 0)
#define atomic64_dec(v)			atomic64_sub(1LL, (v))
#define atomic64_dec_return(v)		atomic64_sub_return(1LL, (v))
#define atomic64_dec_and_test(v)	(atomic64_dec_return((v)) == 0)
#define atomic64_inc_not_zero(v) 	atomic64_add_unless((v), 1LL, 0LL)

#endif  /*  _ASM_GENERIC_ATOMIC64_H  */
d><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>root</a>/<a href='/cgit.cgi/linux/net-next.git/tree/include?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>include</a>/<a href='/cgit.cgi/linux/net-next.git/tree/include/uapi?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>uapi</a>/<a href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>rdma</a></div><div class='content'><table summary='tree listing' class='list'>
<tr class='nohover'><th class='left'>Mode</th><th class='left'>Name</th><th class='right'>Size</th><th/></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/Kbuild?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>Kbuild</a></td><td class='ls-size'>468</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/Kbuild?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/Kbuild?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob h' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/cxgb3-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>cxgb3-abi.h</a></td><td class='ls-size'>2291</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/cxgb3-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/cxgb3-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob h' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/cxgb4-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>cxgb4-abi.h</a></td><td class='ls-size'>2488</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/cxgb4-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/cxgb4-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>d---------</td><td><a class='ls-dir' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/hfi?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>hfi</a></td><td class='ls-size'>73</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/hfi?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/hfi?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob h' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/hns-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>hns-abi.h</a></td><td class='ls-size'>1795</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/hns-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/hns-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob h' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/ib_user_cm.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>ib_user_cm.h</a></td><td class='ls-size'>6526</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/ib_user_cm.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/ib_user_cm.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob h' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/ib_user_mad.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>ib_user_mad.h</a></td><td class='ls-size'>8791</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/ib_user_mad.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/ib_user_mad.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob h' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/ib_user_sa.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>ib_user_sa.h</a></td><td class='ls-size'>2222</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/ib_user_sa.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/ib_user_sa.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob h' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/ib_user_verbs.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>ib_user_verbs.h</a></td><td class='ls-size'>21586</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/ib_user_verbs.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/ib_user_verbs.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob h' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/mlx4-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>mlx4-abi.h</a></td><td class='ls-size'>2864</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/mlx4-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/mlx4-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob h' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/mlx5-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>mlx5-abi.h</a></td><td class='ls-size'>7480</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/mlx5-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/mlx5-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob h' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/mthca-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>mthca-abi.h</a></td><td class='ls-size'>2932</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/mthca-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/mthca-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob h' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/nes-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>nes-abi.h</a></td><td class='ls-size'>3380</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/nes-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/nes-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob h' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/ocrdma-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>ocrdma-abi.h</a></td><td class='ls-size'>3918</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/ocrdma-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/ocrdma-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob h' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/qedr-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>qedr-abi.h</a></td><td class='ls-size'>2559</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/qedr-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/qedr-abi.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>
<tr><td class='ls-mode'>-rw-r--r--</td><td><a class='ls-blob h' href='/cgit.cgi/linux/net-next.git/tree/include/uapi/rdma/rdma_netlink.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>rdma_netlink.h</a></td><td class='ls-size'>4980</td><td><a class='button' href='/cgit.cgi/linux/net-next.git/log/include/uapi/rdma/rdma_netlink.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>log</a><a class='button' href='/cgit.cgi/linux/net-next.git/plain/include/uapi/rdma/rdma_netlink.h?h=nds-private-remove&amp;id=d6db61a40ee056f0b067b924d28b276306474a9c'>plain</a></td></tr>