hwpmc_uncore.h revision 229469 
1/*-
2 * Copyright (c) 2010 Fabien Thomas
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
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.
13 *
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
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/dev/hwpmc/hwpmc_uncore.h 229469 2012-01-04 07:33:06Z fabient $
27 */
28
29#ifndef _DEV_HWPMC_UNCORE_H_
30#define	_DEV_HWPMC_UNCORE_H_ 1
31
32/*
33 * Fixed-function PMCs.
34 */
35struct pmc_md_ucf_op_pmcallocate {
36	uint16_t	pm_ucf_flags;	/* additional flags */
37};
38
39#define	UCF_EN		0x1
40#define	UCF_PMI		0x4
41
42/*
43 * Programmable PMCs.
44 */
45struct pmc_md_ucp_op_pmcallocate {
46	uint32_t	pm_ucp_config;
47};
48
49#define	UCP_EVSEL(C)	((C) & 0xFF)
50#define	UCP_UMASK(C)	((C) & 0xFF00)
51#define	UCP_CTRR	(1 << 17)
52#define	UCP_EDGE	(1 << 18)
53#define	UCP_INT		(1 << 20)
54#define	UCP_EN		(1 << 22)
55#define	UCP_INV		(1 << 23)
56#define	UCP_CMASK(C)	(((C) & 0xFF) << 24)
57
58#ifdef	_KERNEL
59
60#define	DCTL_FLAG_UNC_PMI	(1ULL << 13)
61
62/*
63 * Fixed-function counters.
64 */
65
66#define	UCF_MASK				0xF
67
68#define	UCF_CTR0				0x394
69
70#define	UCF_OFFSET				32
71#define	UCF_CTRL				0x395
72
73/*
74 * Programmable counters.
75 */
76
77#define	UCP_PMC0				0x3B0
78#define	UCP_EVSEL0				0x3C0
79#define UCP_OPCODE_MATCH			0x396
80
81/*
82 * Simplified programming interface in Intel Performance Architecture
83 * v2 and later.
84 */
85
86#define	UC_GLOBAL_STATUS			0x392
87#define	UC_GLOBAL_CTRL				0x391
88#define	UC_GLOBAL_OVF_CTRL			0x393
89
90
91#define	UC_GLOBAL_STATUS_FLAG_CLRCHG		(1ULL << 63)
92#define	UC_GLOBAL_STATUS_FLAG_OVFPMI		(1ULL << 61)
93#define	UC_GLOBAL_CTRL_FLAG_FRZ			(1ULL << 63)
94#define	UC_GLOBAL_CTRL_FLAG_ENPMICORE0		(1ULL << 48)
95
96/*
97 * Model specific registers.
98 */
99
100#define MSR_GQ_SNOOP_MESF			0x301
101
102struct pmc_md_ucf_pmc {
103	uint64_t	pm_ucf_ctrl;
104};
105
106struct pmc_md_ucp_pmc {
107	uint32_t	pm_ucp_evsel;
108};
109
110/*
111 * Prototypes.
112 */
113
114int	pmc_uncore_initialize(struct pmc_mdep *_md, int _maxcpu);
115void	pmc_uncore_finalize(struct pmc_mdep *_md);
116
117void	pmc_uncore_mark_started(int _cpu, int _pmc);
118
119int	pmc_ucf_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width);
120void	pmc_ucf_finalize(struct pmc_mdep *_md);
121
122int	pmc_ucp_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width,
123	    int _flags);
124void	pmc_ucp_finalize(struct pmc_mdep *_md);
125
126#endif	/* _KERNEL */
127#endif	/* _DEV_HWPMC_UNCORE_H */
128