xref: /freebsd/sys/dev/hwpmc/hwpmc_uncore.h (revision 19fae0f66023a97a9b464b3beeeabb2081f575b3)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2010 Fabien Thomas
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #ifndef _DEV_HWPMC_UNCORE_H_
32 #define	_DEV_HWPMC_UNCORE_H_ 1
33 
34 /*
35  * Fixed-function PMCs.
36  */
37 struct pmc_md_ucf_op_pmcallocate {
38 	uint16_t	pm_ucf_flags;	/* additional flags */
39 };
40 
41 #define	UCF_EN		0x1
42 #define	UCF_PMI		0x4
43 
44 /*
45  * Programmable PMCs.
46  */
47 struct pmc_md_ucp_op_pmcallocate {
48 	uint64_t	pm_ucp_config;
49 };
50 
51 #define	UCP_EVSEL(C)	((C) & 0xFF)
52 #define	UCP_UMASK(C)	((C) & 0xFF00)
53 #define	UCP_CTRR	(1 << 17)
54 #define	UCP_EDGE	(1 << 18)
55 #define	UCP_INT		(1 << 20)
56 #define	UCP_EN		(1 << 22)
57 #define	UCP_INV		(1 << 23)
58 #define	UCP_CMASK(C)	(((C) & 0xFF) << 24)
59 #ifdef	_KERNEL
60 
61 #define	DCTL_FLAG_UNC_PMI	(1ULL << 13)
62 
63 /*
64  * Fixed-function counters.
65  */
66 
67 #define	UCF_MASK				0xF
68 
69 #define	UCF_CTR0				0x394
70 
71 #define	UCF_OFFSET				32
72 #define UCF_OFFSET_SB				29
73 #define	UCF_CTRL				0x395
74 
75 /*
76  * Programmable counters.
77  */
78 
79 #define	UCP_PMC0				0x3B0
80 #define	UCP_EVSEL0				0x3C0
81 #define UCP_OPCODE_MATCH			0x396
82 #define UCP_CB0_EVSEL0				0x700
83 
84 /*
85  * Simplified programming interface in Intel Performance Architecture
86  * v2 and later.
87  */
88 
89 #define	UC_GLOBAL_STATUS			0x392
90 #define	UC_GLOBAL_CTRL				0x391
91 #define	UC_GLOBAL_OVF_CTRL			0x393
92 
93 #define	UC_GLOBAL_STATUS_FLAG_CLRCHG		(1ULL << 63)
94 #define	UC_GLOBAL_STATUS_FLAG_OVFPMI		(1ULL << 61)
95 #define	UC_GLOBAL_CTRL_FLAG_FRZ			(1ULL << 63)
96 #define	UC_GLOBAL_CTRL_FLAG_ENPMICORE0		(1ULL << 48)
97 
98 /*
99  * Model specific registers.
100  */
101 
102 #define MSR_GQ_SNOOP_MESF			0x301
103 
104 struct pmc_md_ucf_pmc {
105 	uint64_t	pm_ucf_ctrl;
106 };
107 
108 struct pmc_md_ucp_pmc {
109 	uint64_t	pm_ucp_evsel;
110 };
111 
112 /*
113  * Prototypes.
114  */
115 
116 int	pmc_uncore_initialize(struct pmc_mdep *_md, int _maxcpu);
117 void	pmc_uncore_finalize(struct pmc_mdep *_md);
118 
119 int	pmc_ucf_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width);
120 void	pmc_ucf_finalize(struct pmc_mdep *_md);
121 
122 int	pmc_ucp_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width,
123 	    int _flags);
124 void	pmc_ucp_finalize(struct pmc_mdep *_md);
125 
126 #endif	/* _KERNEL */
127 #endif	/* _DEV_HWPMC_UNCORE_H */
128