2 * Copyright (c) 2008 Joseph Koshy
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
29 #ifndef _DEV_HWPMC_CORE_H_
30 #define _DEV_HWPMC_CORE_H_ 1
33 * Fixed-function PMCs.
35 struct pmc_md_iaf_op_pmcallocate {
36 uint16_t pm_iaf_flags; /* additional flags */
47 struct pmc_md_iap_op_pmcallocate {
48 uint32_t pm_iap_config;
52 #define IAP_EVSEL(C) ((C) & 0xFF)
53 #define IAP_UMASK(C) ((C) & 0xFF00)
54 #define IAP_USR (1 << 16)
55 #define IAP_OS (1 << 17)
56 #define IAP_EDGE (1 << 18)
57 #define IAP_INT (1 << 20)
58 #define IAP_ANY (1 << 21)
59 #define IAP_EN (1 << 22)
60 #define IAP_INV (1 << 23)
61 #define IAP_CMASK(C) (((C) & 0xFF) << 24)
63 #define IA_OFFCORE_RSP_MASK 0xF7FF
68 * Fixed-function counters.
73 #define IAF_COUNTER_MASK 0x0000ffffffffffff
74 #define IAF_CTR0 0x309
75 #define IAF_CTR1 0x30A
76 #define IAF_CTR2 0x30B
79 * The IAF_CTRL MSR is laid out in the following way.
82 * 63 - 12 Reserved (do not touch)
84 * 10 Reserved (do not touch)
87 * 6 Reserved (do not touch)
90 * 2 Reserved (do not touch)
91 * 1-0 Ctr 0 Enable (3: All Levels, 2: User, 1: OS, 0: Disable)
95 #define IAF_CTRL 0x38D
96 #define IAF_CTRL_MASK 0x0000000000000bbb
99 * Programmable counters.
102 #define IAP_PMC0 0x0C1
105 * IAP_EVSEL(n) is laid out in the following way.
108 * 63-31 Reserved (do not touch)
112 * 21 Reserved (do not touch)
113 * 20 APIC Interrupt Enable
122 #define IAP_EVSEL_MASK 0x00000000ffdfffff
123 #define IAP_EVSEL0 0x186
126 * Simplified programming interface in Intel Performance Architecture
130 #define IA_GLOBAL_STATUS 0x38E
131 #define IA_GLOBAL_CTRL 0x38F
134 * IA_GLOBAL_CTRL is layed out in the following way.
137 * 63-35 Reserved (do not touch)
138 * 34 IAF Counter 2 Enable
139 * 33 IAF Counter 1 Enable
140 * 32 IAF Counter 0 Enable
141 * 31-0 Depends on programmable counters
144 /* The mask is only for the fixed porttion of the register. */
145 #define IAF_GLOBAL_CTRL_MASK 0x0000000700000000
147 /* The mask is only for the programmable porttion of the register. */
148 #define IAP_GLOBAL_CTRL_MASK 0x00000000ffffffff
150 /* The mask is for both the fixed and programmable porttions of the register. */
151 #define IA_GLOBAL_CTRL_MASK 0x00000007ffffffff
153 #define IA_GLOBAL_OVF_CTRL 0x390
155 #define IA_GLOBAL_STATUS_FLAG_CONDCHG (1ULL << 63)
156 #define IA_GLOBAL_STATUS_FLAG_OVFBUF (1ULL << 62)
159 * Offcore response configuration.
161 #define IA_OFFCORE_RSP0 0x1A6
162 #define IA_OFFCORE_RSP1 0x1A7
164 struct pmc_md_iaf_pmc {
165 uint64_t pm_iaf_ctrl;
168 struct pmc_md_iap_pmc {
169 uint32_t pm_iap_evsel;
177 int pmc_core_initialize(struct pmc_mdep *_md, int _maxcpu);
178 void pmc_core_finalize(struct pmc_mdep *_md);
180 void pmc_core_mark_started(int _cpu, int _pmc);
182 int pmc_iaf_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width);
183 void pmc_iaf_finalize(struct pmc_mdep *_md);
185 int pmc_iap_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width,
187 void pmc_iap_finalize(struct pmc_mdep *_md);
190 #endif /* _DEV_HWPMC_CORE_H */