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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _PGHW_H
#define _PGHW_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#if (defined(_KERNEL) || defined(_KMEMUSER))
#include <sys/cpuvar.h>
#include <sys/group.h>
#include <sys/processor.h>
#include <sys/bitmap.h>
#include <sys/atomic.h>
#include <sys/types.h>
#include <sys/kstat.h>
#include <sys/pg.h>
/*
* Hardware that may be shared by a group of processors
*/
typedef enum pghw_type {
PGHW_START,
PGHW_IPIPE,
PGHW_CACHE,
PGHW_FPU,
PGHW_MPIPE,
PGHW_MEMORY,
PGHW_NUM_COMPONENTS
} pghw_type_t;
/*
* Consider the physical processor sharing relationship
* equivalant to a shared pipe to memory.
*/
#define PGHW_CHIP PGHW_MPIPE
/*
* Anonymous instance id
*/
#define PGHW_INSTANCE_ANON ((id_t)0xdecafbad)
/*
* Processor Group (physical sharing relationship)
*/
typedef struct pghw {
pg_t pghw_pg; /* processor group */
pghw_type_t pghw_hw; /* HW sharing relationship */
id_t pghw_instance; /* sharing instance identifier */
kstat_t *pghw_kstat; /* physical kstats exported */
} pghw_t;
/*
* IDs associating a CPU with various physical hardware
*/
typedef struct cpu_physid {
id_t cpu_chipid; /* CPU's physical processor */
id_t cpu_coreid; /* CPU's physical core */
id_t cpu_cacheid; /* CPU's cache id */
} cpu_physid_t;
/*
* Physical PG initialization / CPU service hooks
*/
void pghw_init(pghw_t *, cpu_t *, pghw_type_t);
void pghw_fini(pghw_t *);
void pghw_cpu_add(pghw_t *, cpu_t *);
pghw_t *pghw_place_cpu(cpu_t *, pghw_type_t);
/*
* Physical ID cache creation / destruction
*/
void pghw_physid_create(cpu_t *);
void pghw_physid_destroy(cpu_t *);
/*
* CPU / PG hardware related seach operations
*/
pghw_t *pghw_find_pg(cpu_t *, pghw_type_t);
pghw_t *pghw_find_by_instance(id_t, pghw_type_t);
group_t *pghw_set_lookup(pghw_type_t);
int pghw_level(pghw_type_t);
void pghw_kstat_create(pghw_t *);
int pghw_kstat_update(kstat_t *, int);
/* Hardware sharing relationship platform interfaces */
int pg_plat_hw_shared(cpu_t *, pghw_type_t);
int pg_plat_cpus_share(cpu_t *, cpu_t *, pghw_type_t);
int pg_plat_hw_level(pghw_type_t);
id_t pg_plat_hw_instance_id(cpu_t *, pghw_type_t);
/*
* What comprises a "core" may vary across processor implementations,
* and so the term itself is somewhat unstable. For this reason, there
* is no PGHW_CORE type, but we provide an interface here to allow platforms
* to express cpu <=> core mappings.
*/
id_t pg_plat_get_core_id(cpu_t *);
#endif /* !_KERNEL && !_KMEMUSER */
#ifdef __cplusplus
}
#endif
#endif /* _PGHW_H */
|
