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/* $OpenBSD: pte.h,v 1.2 1998/08/29 01:27:35 mickey Exp $ */
/*
* Copyright 1996 1995 by Open Software Foundation, Inc.
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appears in all copies and
* that both the copyright notice and this permission notice appear in
* supporting documentation.
*
* OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE.
*
* IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
* NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* pmk1.1
*/
#ifndef _HPPA_PTE_H_
#define _HPPA_PTE_H_
/* TLB access/protection values */
#define TLB_REF 0x80000000 /* software only */
#define TLB_ALIGNED 0x40000000 /* software only */
#define TLB_TRAP 0x20000000
#define TLB_DIRTY 0x10000000
#define TLB_BREAK 0x08000000
#define TLB_AR_MASK 0x07f00000
#define TLB_AR_NA 0x07300000
#define TLB_AR_KR 0x00000000
#define TLB_AR_KRW 0x01000000
#define TLB_AR_KRX 0x02000000
#define TLB_AR_KRWX 0x03000000
#define TLB_AR_UR 0x00f00000
#define TLB_AR_URW 0x01f00000
#define TLB_AR_URX 0x02f00000
#define TLB_AR_URWX 0x03f00000
#define TLB_UNCACHEABLE 0x00080000
#define TLB_ICACHE 0x00040000 /* software only */
#define TLB_NOTUSED 0x00020000 /* software only */
#define TLB_DCACHE 0x00010000 /* software only */
#define TLB_PID_MASK 0x0000fffe
#define TLB_WIRED 0x00000001 /* software only */
#define TLB_REF_POS 0
#define TLB_ALIGNED_POS 1
#define TLB_TRAP_POS 2
#define TLB_DIRTY_POS 3
#define TLB_BREAK_POS 4
#define TLB_ITLB_POS 12
#define TLB_ICACHE_POS 13
#define TLB_DTLB_POS 14
#define TLB_DCACHE_POS 15
#define TLB_WIRED_POS 31
/* protection for a gateway page */
#define TLB_GATE_PROT 0x04c00000
/* protection for break page */
#define TLB_BREAK_PROT 0x02c00000
#if defined(TLB_STATS) && !defined(_LOCORE)
struct dtlb_stats {
u_int dtlb_misses;
u_int dtlb_io;
u_int dtlb_misstime;
u_int dtlb_missflts;
u_int dtlb_missinsns;
u_int dtlb_cached;
u_int dtlb_tmp[2];
};
struct itlb_stats {
u_int itlb_misses;
u_int itlb_gateway;
u_int itlb_misstime;
u_int itlb_missflts;
u_int itlb_missinsns;
u_int itlb_cached;
u_int itlb_dummy[2];
};
struct tlbd_stats {
u_int tlbd_dirty;
u_int tlbd_flushes;
u_int tlbd_misstime;
u_int tlbd_missflts;
u_int tlbd_missinsns;
u_int tlbd_dummy[3];
};
#ifdef _KERNEL
extern struct dtlb_stats dtlb_stats;
extern struct itlb_stats dtlb_stats;
extern struct tlbd_stats dtlb_stats;
#endif /* _KERNEL */
#endif /* TLB_STATS && !_LOCORE */
#endif /* _HPPA_PTE_H_ */
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