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/*-
* Copyright (c) 2017 Mellanox Technologies, Ltd.
* All rights reserved.
*
* 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 _LINUX_PFN_T_H_
#define _LINUX_PFN_T_H_
#include <linux/mm.h>
CTASSERT(PAGE_SHIFT > 4);
#define PFN_FLAGS_MASK (((u64)(PAGE_SIZE - 1)) << (64 - PAGE_SHIFT))
#define PFN_SG_CHAIN (1ULL << (64 - 1))
#define PFN_SG_LAST (1ULL << (64 - 2))
#define PFN_DEV (1ULL << (64 - 3))
#define PFN_MAP (1ULL << (64 - 4))
static inline pfn_t
__pfn_to_pfn_t(unsigned long pfn, u64 flags)
{
pfn_t pfn_t = { pfn | (flags & PFN_FLAGS_MASK) };
return (pfn_t);
}
static inline pfn_t
pfn_to_pfn_t(unsigned long pfn)
{
return (__pfn_to_pfn_t (pfn, 0));
}
#endif /* _LINUX_PFN_T_H_ */
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