2 * Copyright (c) 1997 Berkeley Software Design, Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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
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
28 * from: BSDI: pmap.v9.h,v 1.10.2.6 1999/08/23 22:18:44 cp Exp
32 #ifndef _MACHINE_TTE_H_
33 #define _MACHINE_TTE_H_
37 #define TD_SIZE_SHIFT (61)
38 #define TD_SOFT2_SHIFT (50)
39 #define TD_DIAG_SF_SHIFT (41)
40 #define TD_RSVD_CH_SHIFT (43)
41 #define TD_PA_SHIFT (13)
42 #define TD_SOFT_SHIFT (7)
44 #define TD_SIZE_BITS (2)
45 #define TD_SOFT2_BITS (9)
46 #define TD_DIAG_SF_BITS (9)
47 #define TD_RSVD_CH_BITS (7)
48 #define TD_PA_CH_BITS (30)
49 #define TD_PA_SF_BITS (28)
50 #define TD_PA_BITS TD_PA_CH_BITS
51 #define TD_SOFT_BITS (6)
53 #define TD_SIZE_MASK ((1UL << TD_SIZE_BITS) - 1)
54 #define TD_SOFT2_MASK ((1UL << TD_SOFT2_BITS) - 1)
55 #define TD_DIAG_SF_MASK ((1UL << TD_DIAG_SF_BITS) - 1)
56 #define TD_RSVD_CH_MASK ((1UL << TD_RSVD_CH_BITS) - 1)
57 #define TD_PA_CH_MASK ((1UL << TD_PA_CH_BITS) - 1)
58 #define TD_PA_SF_MASK ((1UL << TD_PA_SF_BITS) - 1)
59 #define TD_PA_MASK ((1UL << TD_PA_BITS) - 1)
60 #define TD_SOFT_MASK ((1UL << TD_SOFT_BITS) - 1)
70 #define TD_V (1UL << 63)
71 #define TD_8K (TS_8K << TD_SIZE_SHIFT)
72 #define TD_64K (TS_64K << TD_SIZE_SHIFT)
73 #define TD_512K (TS_512K << TD_SIZE_SHIFT)
74 #define TD_4M (TS_4M << TD_SIZE_SHIFT)
75 #define TD_NFO (1UL << 60)
76 #define TD_IE (1UL << 59)
77 #define TD_PA(pa) ((pa) & (TD_PA_MASK << TD_PA_SHIFT))
78 /* NOTE: bit 6 of TD_SOFT will be sign-extended if used as an immediate. */
79 #define TD_FAKE ((1UL << 5) << TD_SOFT_SHIFT)
80 #define TD_EXEC ((1UL << 4) << TD_SOFT_SHIFT)
81 #define TD_REF ((1UL << 3) << TD_SOFT_SHIFT)
82 #define TD_PV ((1UL << 2) << TD_SOFT_SHIFT)
83 #define TD_SW ((1UL << 1) << TD_SOFT_SHIFT)
84 #define TD_WIRED ((1UL << 0) << TD_SOFT_SHIFT)
85 #define TD_L (1UL << 6)
86 #define TD_CP (1UL << 5)
87 #define TD_CV (1UL << 4)
88 #define TD_E (1UL << 3)
89 #define TD_P (1UL << 2)
90 #define TD_W (1UL << 1)
91 #define TD_G (1UL << 0)
93 #define TV_SIZE_BITS (TD_SIZE_BITS)
94 #define TV_VPN(va, sz) ((((va) >> TTE_PAGE_SHIFT(sz)) << TV_SIZE_BITS) | sz)
96 #define TTE_SIZE_SPREAD (3)
97 #define TTE_PAGE_SHIFT(sz) \
98 (PAGE_SHIFT + ((sz) * TTE_SIZE_SPREAD))
100 #define TTE_GET_SIZE(tp) \
101 (((tp)->tte_data >> TD_SIZE_SHIFT) & TD_SIZE_MASK)
102 #define TTE_GET_PAGE_SHIFT(tp) \
103 TTE_PAGE_SHIFT(TTE_GET_SIZE(tp))
104 #define TTE_GET_PAGE_SIZE(tp) \
105 (1 << TTE_GET_PAGE_SHIFT(tp))
106 #define TTE_GET_PAGE_MASK(tp) \
107 (TTE_GET_PAGE_SIZE(tp) - 1)
109 #define TTE_GET_PA(tp) \
110 ((tp)->tte_data & (TD_PA_MASK << TD_PA_SHIFT))
111 #define TTE_GET_VPN(tp) \
112 ((tp)->tte_vpn >> TV_SIZE_BITS)
113 #define TTE_GET_VA(tp) \
114 (TTE_GET_VPN(tp) << TTE_GET_PAGE_SHIFT(tp))
115 #define TTE_GET_PMAP(tp) \
116 (((tp)->tte_data & TD_P) != 0 ? \
118 (PHYS_TO_VM_PAGE(pmap_kextract((vm_offset_t)(tp)))->md.pmap))
119 #define TTE_ZERO(tp) \
120 memset(tp, 0, sizeof(*tp))
127 TAILQ_ENTRY(tte) tte_link;
131 tte_match(struct tte *tp, vm_offset_t va)
133 return (((tp->tte_data & TD_V) != 0) &&
134 (tp->tte_vpn == TV_VPN(va, TTE_GET_SIZE(tp))));
137 #endif /* !_MACHINE_TTE_H_ */