/*
* Copyright (c) 2005 Jakub Jermar
* 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.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*/
/** @addtogroup kernel_ia64_mm
* @{
*/
/** @file
*/
#ifndef KERN_ia64_ASID_H_
#define KERN_ia64_ASID_H_
#ifndef __ASSEMBLER__
#include <stdint.h>
typedef uint16_t asid_t;
typedef uint32_t rid_t;
#endif /* __ASSEMBLER__ */
/**
* Number of ia64 RIDs (Region Identifiers) per kernel ASID.
* Note that some architectures may support more bits,
* but those extra bits are not used by the kernel.
*/
#define RIDS_PER_ASID 8
#define RID_MAX 262143 /* 2^18 - 1 */
#define RID_KERNEL7 7
#define ASID2RID(asid, vrn) \
((asid) * RIDS_PER_ASID + (vrn))
#define RID2ASID(rid) \
((rid) / RIDS_PER_ASID)
#define ASID_MAX_ARCH (RID_MAX / RIDS_PER_ASID)
#endif
/** @}
*/