xref: /freebsd/sys/dev/hwpmc/hwpmc_amd.h (revision aa0a1e58)
1 /*-
2  * Copyright (c) 2005, Joseph Koshy
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  * $FreeBSD$
27  */
28 
29 /* Machine dependent interfaces */
30 
31 #ifndef _DEV_HWPMC_AMD_H_
32 #define	_DEV_HWPMC_AMD_H_ 1
33 
34 /* AMD K7 and K8 PMCs */
35 
36 #define	AMD_PMC_EVSEL_0		0xC0010000
37 #define	AMD_PMC_EVSEL_1		0xC0010001
38 #define	AMD_PMC_EVSEL_2		0xC0010002
39 #define	AMD_PMC_EVSEL_3		0xC0010003
40 
41 #define	AMD_PMC_PERFCTR_0	0xC0010004
42 #define	AMD_PMC_PERFCTR_1	0xC0010005
43 #define	AMD_PMC_PERFCTR_2	0xC0010006
44 #define	AMD_PMC_PERFCTR_3	0xC0010007
45 
46 
47 #define	AMD_NPMCS		4
48 
49 #define	AMD_PMC_COUNTERMASK	0xFF000000
50 #define	AMD_PMC_TO_COUNTER(x)	(((x) << 24) & AMD_PMC_COUNTERMASK)
51 #define	AMD_PMC_INVERT		(1 << 23)
52 #define	AMD_PMC_ENABLE		(1 << 22)
53 #define	AMD_PMC_INT		(1 << 20)
54 #define	AMD_PMC_PC		(1 << 19)
55 #define	AMD_PMC_EDGE		(1 << 18)
56 #define	AMD_PMC_OS		(1 << 17)
57 #define	AMD_PMC_USR		(1 << 16)
58 
59 #define	AMD_PMC_UNITMASK_M	0x10
60 #define	AMD_PMC_UNITMASK_O	0x08
61 #define	AMD_PMC_UNITMASK_E	0x04
62 #define	AMD_PMC_UNITMASK_S	0x02
63 #define	AMD_PMC_UNITMASK_I	0x01
64 #define	AMD_PMC_UNITMASK_MOESI	0x1F
65 
66 #define	AMD_PMC_UNITMASK	0xFF00
67 #define	AMD_PMC_EVENTMASK 	0x00FF
68 
69 #define	AMD_PMC_TO_UNITMASK(x)	(((x) << 8) & AMD_PMC_UNITMASK)
70 #define	AMD_PMC_TO_EVENTMASK(x)	((x) & 0xFF)
71 #define	AMD_VALID_BITS		(AMD_PMC_COUNTERMASK | AMD_PMC_INVERT |	\
72 	AMD_PMC_ENABLE | AMD_PMC_INT | AMD_PMC_PC | AMD_PMC_EDGE | 	\
73 	AMD_PMC_OS | AMD_PMC_USR | AMD_PMC_UNITMASK | AMD_PMC_EVENTMASK)
74 
75 #define AMD_PMC_CAPS		(PMC_CAP_INTERRUPT | PMC_CAP_USER | 	\
76 	PMC_CAP_SYSTEM | PMC_CAP_EDGE | PMC_CAP_THRESHOLD | 		\
77 	PMC_CAP_READ | PMC_CAP_WRITE | PMC_CAP_INVERT | PMC_CAP_QUALIFIER)
78 
79 #define AMD_PMC_IS_STOPPED(evsel) ((rdmsr((evsel)) & AMD_PMC_ENABLE) == 0)
80 #define AMD_PMC_HAS_OVERFLOWED(pmc) ((rdpmc(pmc) & (1ULL << 47)) == 0)
81 
82 #define	AMD_RELOAD_COUNT_TO_PERFCTR_VALUE(V)	(-(V))
83 #define	AMD_PERFCTR_VALUE_TO_RELOAD_COUNT(P)	(-(P))
84 
85 struct pmc_md_amd_op_pmcallocate {
86 	uint32_t	pm_amd_config;
87 };
88 
89 #ifdef _KERNEL
90 
91 /* MD extension for 'struct pmc' */
92 struct pmc_md_amd_pmc {
93 	uint32_t	pm_amd_evsel;
94 };
95 
96 #endif /* _KERNEL */
97 #endif /* _DEV_HWPMC_AMD_H_ */
98