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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2019, 2020 Jeffrey Roberson <jeff@FreeBSD.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*
*/
#ifndef _SYS__SMR_H_
#define _SYS__SMR_H_
typedef uint32_t smr_seq_t;
typedef int32_t smr_delta_t;
typedef struct smr *smr_t;
#define SMR_ENTERED(smr) \
(curthread->td_critnest != 0 && zpcpu_get((smr))->c_seq != SMR_SEQ_INVALID)
#define SMR_ASSERT_ENTERED(smr) \
KASSERT(SMR_ENTERED(smr), ("Not in smr section"))
#define SMR_ASSERT_NOT_ENTERED(smr) \
KASSERT(!SMR_ENTERED(smr), ("In smr section."));
#define SMR_ASSERT(ex, fn) \
KASSERT((ex), (fn ": Assertion " #ex " failed at %s:%d", __FILE__, __LINE__))
#endif /* __SYS_SMR_H_ */
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