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/* $OpenBSD: pte.h,v 1.3 2010/07/24 16:25:33 kettenis Exp $ */
/*
* Copyright (c) 2005 Michael Shalayeff
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
* OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _MACHINE_PTE_H_
#define _MACHINE_PTE_H_
#define SID_MASK (0x1ff)
#define SID_SHIFT (9)
#define PIE_MASK (0x1ff80000000UL)
#define PIE_SHIFT (PDE_SHIFT+10)
#define PDE_MASK (0x0007fe00000UL)
#define PDE_SHIFT (PTE_SHIFT+9)
#define PTE_MASK (0x000001ff000UL)
#define PTE_SHIFT PAGE_SHIFT
#define PTE_PAGE(pte) (((pte) & PTE_PGMASK) << 7)
#define TLB_PAGE(pg) (((pg) >> 7) & PTE_PGMASK)
#define PTE_IFLUSH 0x8000000000000000UL /* software */
#define PTE_DFLUSH 0x4000000000000000UL /* software */
#define PTE_REFTRAP 0x2000000000000000UL /* used as a ref bit */
#define PTE_DIRTY 0x1000000000000000UL
#define PTE_BREAK 0x0800000000000000UL
#define PTE_GATEWAY 0x04c0000000000000UL
#define PTE_EXEC 0x0200000000000000UL
#define PTE_WRITE 0x0100000000000000UL
#define PTE_READ 0x0000000000000000UL
#define PTE_USER 0x00f0000000000000UL
#define PTE_ACC_NONE 0x0730000000000000UL
#define PTE_ACC_MASK 0x07f0000000000000UL
#define PTE_UNCACHABLE 0x0008000000000000UL
#define PTE_ORDER 0x0004000000000000UL
#define PTE_PREDICT 0x0002000000000000UL
#define PTE_WIRED 0x0001000000000000UL /* software */
#define PTE_PGMASK 0x0000001fffffffe0UL
#define PTE_PG4K 0x0000000000000000UL
#define PTE_PG16K 0x0000000000000001UL
#define PTE_PG64K 0x0000000000000002UL
#define PTE_PG256K 0x0000000000000003UL
#define PTE_PG1M 0x0000000000000004UL
#define PTE_PG4M 0x0000000000000005UL
#define PTE_PG16M 0x0000000000000006UL
#define PTE_PG64M 0x0000000000000007UL
#define PTE_PAGE_SHIFT(pte) (12 + (2 * ((pte) & PTE_PG64M)))
#define PTE_PAGE_SIZE(pte) (1 << PTE_PAGE_SHIFT(pte))
#define PTE_GETBITS(pte) ((pte) >> 48)
#define PTE_BITS \
"\020\01H\02P\03O\04UC\05U\010W\11X\12G\014B\015D\016REF\017FD\020FI"
#ifndef _LOCORE
typedef u_int64_t pt_entry_t;
#endif
#endif /* _MACHINE_PTE_H_ */
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