2 * Copyright (c) 2001 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifndef _MACHINE_PTE_H_
30 #define _MACHINE_PTE_H_
32 #define PTE_PRESENT 0x0000000000000001
33 #define PTE__RV1_ 0x0000000000000002
34 #define PTE_MA_MASK 0x000000000000001C
35 #define PTE_MA_WB 0x0000000000000000
36 #define PTE_MA_UC 0x0000000000000010
37 #define PTE_MA_UCE 0x0000000000000014
38 #define PTE_MA_WC 0x0000000000000018
39 #define PTE_MA_NATPAGE 0x000000000000001C
40 #define PTE_ACCESSED 0x0000000000000020
41 #define PTE_DIRTY 0x0000000000000040
42 #define PTE_PL_MASK 0x0000000000000180
43 #define PTE_PL_KERN 0x0000000000000000
44 #define PTE_PL_USER 0x0000000000000180
45 #define PTE_AR_MASK 0x0000000000000E00
46 #define PTE_AR_R 0x0000000000000000
47 #define PTE_AR_RX 0x0000000000000200
48 #define PTE_AR_RW 0x0000000000000400
49 #define PTE_AR_RWX 0x0000000000000600
50 #define PTE_AR_R_RW 0x0000000000000800
51 #define PTE_AR_RX_RWX 0x0000000000000A00
52 #define PTE_AR_RWX_RW 0x0000000000000C00
53 #define PTE_AR_X_RX 0x0000000000000E00
54 #define PTE_PPN_MASK 0x0003FFFFFFFFF000
55 #define PTE__RV2_ 0x000C000000000000
56 #define PTE_ED 0x0010000000000000
57 #define PTE_IG_MASK 0xFFE0000000000000
58 #define PTE_WIRED 0x0020000000000000
59 #define PTE_MANAGED 0x0040000000000000
60 #define PTE_PROT_MASK 0x0700000000000000
62 #define ITIR__RV1_ 0x0000000000000003
63 #define ITIR_PS_MASK 0x00000000000000FC
64 #define ITIR_KEY_MASK 0x00000000FFFFFF00
65 #define ITIR__RV2_ 0xFFFFFFFF00000000
69 typedef uint64_t pt_entry_t;
71 static __inline pt_entry_t
72 pte_atomic_clear(pt_entry_t *ptep, uint64_t val)
74 return (atomic_clear_64(ptep, val));
77 static __inline pt_entry_t
78 pte_atomic_set(pt_entry_t *ptep, uint64_t val)
80 return (atomic_set_64(ptep, val));
84 * A long-format VHPT entry.
89 uint64_t tag; /* includes ti */
90 uint64_t chain; /* pa of collision chain */
97 uint64_t rr_ve :1; /* bit 0 */
98 uint64_t __rv1__ :1; /* bit 1 */
99 uint64_t rr_ps :6; /* bits 2..7 */
100 uint64_t rr_rid :24; /* bits 8..31 */
101 uint64_t __rv2__ :32; /* bits 32..63 */
106 #endif /* !_MACHINE_PTE_H_ */