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/* Copyright (C) 2013-2015 Free Software Foundation, Inc.
This file is part of the UPC runtime Library.
Written by Gary Funck <gary@intrepid.com>
and Nenad Vukicevic <nenad@intrepid.com>
This file is part of GCC.
GCC 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 3, or (at your option)
any later version.
GCC 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.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
/* UPC Atomic Memory Operations */
#ifndef _UPC_ATOMIC_H_
#define _UPC_ATOMIC_H_
#include "upc_types.h"
/* Atomic operations not defined in <upc_types.h>. */
#define UPC_GET (1UL<<9)
#define UPC_SET (1UL<<10)
#define UPC_CSWAP (1UL<<11)
#define UPC_SUB (1UL<<12)
#define UPC_INC (1UL<<13)
#define UPC_DEC (1UL<<14)
#define UPC_GET_OP 9
#define UPC_SET_OP 10
#define UPC_CSWAP_OP 11
#define UPC_SUB_OP 12
#define UPC_INC_OP 13
#define UPC_DEC_OP 14
/* Preferred mode of optimization of a domain. */
typedef int upc_atomichint_t;
/* Preferred mode of optimization values. */
#define UPC_ATOMIC_HINT_DEFAULT 0
#define UPC_ATOMIC_HINT_LATENCY 1
#define UPC_ATOMIC_HINT_THROUGHPUT 2
/* Atomics domain allocator (collective function). */
upc_atomicdomain_t *upc_all_atomicdomain_alloc (upc_type_t type,
upc_op_t ops,
upc_atomichint_t hints);
/* Atomics domain release (collective function). */
void upc_all_atomicdomain_free (upc_atomicdomain_t * ptr);
/* Atomics strict operation. */
void upc_atomic_strict (upc_atomicdomain_t * domain,
void *restrict fetch_ptr, upc_op_t op,
shared void *restrict target,
const void *restrict operand1,
const void *restrict operand2);
/* Atomics relaxed operation. */
void upc_atomic_relaxed (upc_atomicdomain_t * domain,
void *restrict fetch_ptr, upc_op_t op,
shared void *restrict target,
const void *restrict operand1,
const void *restrict operand2);
/* Atomics query function for expected performance. */
int upc_atomic_isfast (upc_type_t type, upc_op_t ops, shared void *addr);
/* Expected performance return value. */
#define UPC_ATOMIC_PERFORMANCE_NOT_FAST 0
#define UPC_ATOMIC_PERFORMANCE_FAST 1
#endif /* !_UPC_ATOMIC_H_ */
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