From f239aed5e674965691846e8ce3f187dd47523689 Mon Sep 17 00:00:00 2001 From: Luca Boccassi Date: Wed, 16 Aug 2017 18:42:05 +0100 Subject: New upstream version 17.08 Change-Id: I288b50990f52646089d6b1f3aaa6ba2f091a51d7 Signed-off-by: Luca Boccassi --- lib/librte_eal/common/include/generic/rte_pause.h | 52 +++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 lib/librte_eal/common/include/generic/rte_pause.h (limited to 'lib/librte_eal/common/include/generic/rte_pause.h') diff --git a/lib/librte_eal/common/include/generic/rte_pause.h b/lib/librte_eal/common/include/generic/rte_pause.h new file mode 100644 index 00000000..a8374321 --- /dev/null +++ b/lib/librte_eal/common/include/generic/rte_pause.h @@ -0,0 +1,52 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2017 Cavium, Inc. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Cavium, Inc nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _RTE_PAUSE_H_ +#define _RTE_PAUSE_H_ + +/** + * @file + * + * CPU pause operation. + * + */ + +/** + * Pause CPU execution for a short while + * + * This call is intended for tight loops which poll a shared resource or wait + * for an event. A short pause within the loop may reduce the power consumption. + */ +static inline void rte_pause(void); + +#endif /* _RTE_PAUSE_H_ */ -- cgit 1.2.3-korg