1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*-
* Copyright (c) 2006 Kip Macy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_TTE_HASH_H_
#define _MACHINE_TTE_HASH_H_
#define HASH_ENTRY_SHIFT 2
#define HASH_ENTRIES ((1 << HASH_ENTRY_SHIFT) - 1)
#define THE_SHIFT (TTE_SHIFT + HASH_ENTRY_SHIFT) /* size of TSB entry * #entries */
#define TH_COLLISION_SHIFT 47 /* bit 47 will never be set for a valid tag */
#define TH_COLLISION (1UL << TH_COLLISION_SHIFT)
#define TH_INVALID_SHIFT 46 /* bit 47 will never be set for a valid tag */
#define TH_INVALID (1UL << TH_INVALID_SHIFT)
struct tte_hash;
typedef struct tte_hash *tte_hash_t;
void tte_hash_init(void);
void tte_hash_clear(tte_hash_t hash);
tte_t tte_hash_clear_bits(tte_hash_t hash, vm_offset_t va, uint64_t flags);
tte_hash_t tte_hash_kernel_create(vm_offset_t, uint16_t, vm_paddr_t);
tte_hash_t tte_hash_create(uint64_t context, uint64_t *scratchval);
void tte_hash_destroy(tte_hash_t th);
tte_t tte_hash_delete(tte_hash_t hash, vm_offset_t va);
void tte_hash_delete_all(tte_hash_t hash);
void tte_hash_insert(tte_hash_t hash, vm_offset_t va, tte_t data);
tte_t tte_hash_lookup(tte_hash_t hash, vm_offset_t va);
tte_t tte_hash_lookup_nolock(tte_hash_t hash, vm_offset_t va);
tte_hash_t tte_hash_reset(tte_hash_t hash, uint64_t *scratchval);
uint64_t tte_hash_set_scratchpad_kernel(tte_hash_t th);
uint64_t tte_hash_set_scratchpad_user(tte_hash_t th, uint64_t context);
tte_t tte_hash_update(tte_hash_t hash, vm_offset_t va, tte_t tte_data);
int tte_hash_needs_resize(tte_hash_t th);
tte_hash_t tte_hash_resize(tte_hash_t th);
#endif /* _MACHINE_TTE_HASH_H_ */
|
