tte.h revision 91224 
1/*-
2 * Copyright (c) 1997 Berkeley Software Design, Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 * 3. Berkeley Software Design Inc's name may not be used to endorse or
13 *    promote products derived from this software without specific prior
14 *    written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 *	from: BSDI: pmap.v9.h,v 1.10.2.6 1999/08/23 22:18:44 cp Exp
29 * $FreeBSD: head/sys/sparc64/include/tte.h 91224 2002-02-25 04:56:50Z jake $
30 */
31
32#ifndef	_MACHINE_TTE_H_
33#define	_MACHINE_TTE_H_
34
35#define	TTE_SHIFT	(4)
36
37#define	TD_SIZE_SHIFT	(61)
38#define	TD_SOFT2_SHIFT	(50)
39#define	TD_DIAG_SHIFT	(41)
40#define	TD_PA_SHIFT	(13)
41#define	TD_SOFT_SHIFT	(7)
42
43#define	TD_SIZE_SIZE	(2)
44#define	TD_SOFT2_SIZE	(9)
45#define	TD_DIAG_SIZE	(9)
46#define	TD_PA_SIZE	(28)
47#define	TD_SOFT_SIZE	(6)
48
49#define	TD_SIZE_MASK	(((1UL << TD_SIZE_SIZE) - 1) << TD_SIZE_SHIFT)
50#define	TD_SOFT2_MASK	(((1UL << TD_SOFT2_SIZE) - 1) << TD_SOFT2_SHIFT)
51#define	TD_DIAG_MASK	(((1UL << TD_DIAG_SIZE) - 1) << TD_DIAG_SHIFT)
52#define	TD_PA_MASK	(((1UL << TD_PA_SIZE) - 1) << TD_PA_SHIFT)
53#define	TD_SOFT_MASK	(((1UL << TD_SOFT_SIZE) - 1) << TD_SOFT_SHIFT)
54
55#define	TS_EXEC		(1UL << 4)
56#define	TS_REF		(1UL << 3)
57#define	TS_PV		(1UL << 2)
58#define	TS_W		(1UL << 1)
59#define	TS_WIRED	(1UL << 0)
60
61#define	TD_V		(1UL << 63)
62#define	TD_8K		(0UL << TD_SIZE_SHIFT)
63#define	TD_64K		(1UL << TD_SIZE_SHIFT)
64#define	TD_512K		(2UL << TD_SIZE_SHIFT)
65#define	TD_4M		(3UL << TD_SIZE_SHIFT)
66#define	TD_NFO		(1UL << 60)
67#define	TD_IE		(1UL << 59)
68#define	TD_PA(pa)	((pa) & TD_PA_MASK)
69#define	TD_EXEC		(TS_EXEC << TD_SOFT_SHIFT)
70#define	TD_REF		(TS_REF << TD_SOFT_SHIFT)
71#define	TD_PV		(TS_PV << TD_SOFT_SHIFT)
72#define	TD_SW		(TS_W << TD_SOFT_SHIFT)
73#define	TD_WIRED	(TS_WIRED << TD_SOFT_SHIFT)
74#define	TD_L		(1UL << 6)
75#define	TD_CP		(1UL << 5)
76#define	TD_CV		(1UL << 4)
77#define	TD_E		(1UL << 3)
78#define	TD_P		(1UL << 2)
79#define	TD_W		(1UL << 1)
80#define	TD_G		(1UL << 0)
81
82#define	TV_VPN(va)	((va) >> PAGE_SHIFT)
83
84#define	TD_GET_SIZE(d)	(((d) >> TD_SIZE_SHIFT) & 3)
85#define	TD_GET_PA(d)	((d) & TD_PA_MASK)
86#define	TD_GET_TLB(d)	(((d) & TD_EXEC) ? (TLB_DTLB | TLB_ITLB) : TLB_DTLB)
87#define	TV_GET_VA(vpn)	((vpn) << PAGE_SHIFT)
88
89struct tte {
90	u_long	tte_vpn;
91	u_long	tte_data;
92};
93
94static __inline int
95tte_match_vpn(struct tte tte, vm_offset_t vpn)
96{
97	return ((tte.tte_data & TD_V) != 0 && tte.tte_vpn == vpn);
98}
99
100static __inline int
101tte_match(struct tte tte, vm_offset_t va)
102{
103	return (tte_match_vpn(tte, va >> PAGE_SHIFT));
104}
105
106#endif /* !_MACHINE_TTE_H_ */
107