1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2008 Joseph Koshy 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 29 #ifndef _DEV_HWPMC_CORE_H_ 30 #define _DEV_HWPMC_CORE_H_ 1 31 32 #define IA32_PERF_CAPABILITIES 0x345 33 #define PERFCAP_LBR_FORMAT 0x003f 34 #define PERFCAP_PEBS_TRAP 0x0040 35 #define PERFCAP_PEBS_SAVEARCH 0x0080 36 #define PERFCAP_PEBS_RECFORMAT 0x0f00 37 #define PERFCAP_SMM_FREEZE 0x1000 38 #define PERFCAP_FW_WRITE 0x2000 /* full width write aliases */ 39 40 #define IAF_OS 0x1 41 #define IAF_USR 0x2 42 #define IAF_ANY 0x4 43 #define IAF_PMI 0x8 44 45 /* 46 * Programmable PMCs. 47 */ 48 struct pmc_md_iap_op_pmcallocate { 49 uint64_t pm_iap_config; 50 uint64_t pm_iap_rsp; 51 }; 52 53 #define IAP_EVSEL(C) ((C) & 0xFF) 54 #define IAP_UMASK(C) (((C) & 0xFF) << 8) 55 #define IAP_USR (1 << 16) 56 #define IAP_OS (1 << 17) 57 #define IAP_EDGE (1 << 18) 58 #define IAP_INT (1 << 20) 59 #define IAP_ANY (1 << 21) 60 #define IAP_EN (1 << 22) 61 #define IAP_INV (1 << 23) 62 #define IAP_CMASK(C) (((C) & 0xFF) << 24) 63 64 #define IAP_EVSEL_GET(C) ((C) & 0xFF) 65 #define IAP_UMASK_GET(C) (((C) & 0xFF00) >> 8) 66 67 #define IA_OFFCORE_RSP_MASK_I7WM 0x000000F7FF 68 #define IA_OFFCORE_RSP_MASK_SBIB 0x3F807F8FFF 69 70 #ifdef _KERNEL 71 72 /* 73 * Fixed-function counters. 74 */ 75 76 #define IAF_MASK 0x000000010000000f 77 78 #define IAF_CTR0 0x309 79 #define IAF_CTR1 0x30A 80 #define IAF_CTR2 0x30B 81 82 /* 83 * The IAF_CTRL MSR is laid out in the following way. 84 * 85 * Bit Position Use 86 * 63 - 45 Reserved (do not touch) 87 * 44 Ctr 3 Adaptive Record (v5) 88 * 43 - 41 Reserved (do not touch) 89 * 40 Ctr 2 Adaptive Record (v5) 90 * 39 - 37 Reserved (do not touch) 91 * 36 Ctr 1 Adaptive Record (v5) 92 * 35 - 33 Reserved (do not touch) 93 * 32 Ctr 0 Adaptive Record (v5) 94 * 15 Ctr 3 PMI 95 * 14 Ctr 3 Any Thread (v3) 96 * 13-12 Ctr 3 Enable 97 * 11 Ctr 2 PMI 98 * 10 Ctr 2 Any Thread (v3) 99 * 9-8 Ctr 2 Enable 100 * 7 Ctr 1 PMI 101 * 6 Ctr 1 Any Thread (v3) 102 * 5-4 Ctr 1 Enable 103 * 3 Ctr 0 PMI 104 * 2 Ctr 0 Any Thread (v3) 105 * 1-0 Ctr 0 Enable (3: All Levels, 2: User, 1: OS, 0: Disable) 106 */ 107 108 #define IAF_OFFSET 32 109 #define IAF_CTRL 0x38D 110 111 /* 112 * Programmable counters. 113 */ 114 115 #define IAP_PMC0 0x0C1 116 #define IAP_A_PMC0 0x4C1 117 118 /* 119 * IAP_EVSEL(n) is laid out in the following way. 120 * 121 * Bit Position Use 122 * 63-35 Reserved (do not touch) 123 * 34 Adaptive Record (v5) 124 * 33 IN_TX (v3) 125 * 32 IN_TXCP (v3) 126 * 31-24 Counter Mask 127 * 23 Invert 128 * 22 Enable 129 * 21 Any Thread (v3) 130 * 20 APIC Interrupt Enable 131 * 19 Pin Control 132 * 18 Edge Detect 133 * 17 OS 134 * 16 User 135 * 15-8 Unit Mask 136 * 7-0 Event Select 137 */ 138 139 #define IAP_EVSEL0 0x186 140 141 /* 142 * Simplified programming interface in Intel Performance Architecture 143 * v2 and later. 144 */ 145 146 #define IA_GLOBAL_STATUS 0x38E 147 #define IA_GLOBAL_CTRL 0x38F 148 149 /* 150 * IA_GLOBAL_CTRL is laid out in the following way. 151 * 152 * Bit Position Use 153 * 63-49 Reserved (do not touch) 154 * 48 Perf Metrics Enable (v5) 155 * 47-36 Reserved (do not touch) 156 * 35 IAF Counter 3 Enable 157 * 34 IAF Counter 2 Enable 158 * 33 IAF Counter 1 Enable 159 * 32 IAF Counter 0 Enable 160 * 31-0 Depends on programmable counters 161 */ 162 163 #define IA_GLOBAL_OVF_CTRL 0x390 164 #define IA_GLOBAL_STATUS_RESET 0x390 165 #define IA_GLOBAL_STATUS_SET 0x391 /* v4 */ 166 167 #define IA_GLOBAL_STATUS_FLAG_CONDCHG (1ULL << 63) 168 #define IA_GLOBAL_STATUS_FLAG_OVFBUF (1ULL << 62) 169 #define IA_GLOBAL_STATUS_FLAG_OVFUNCORE (1ULL << 61) /* v3 */ 170 #define IA_GLOBAL_STATUS_FLAG_ASCI (1ULL << 60) /* v4 */ 171 #define IA_GLOBAL_STATUS_FLAG_CTR_FRZ (1ULL << 59) /* v4 */ 172 #define IA_GLOBAL_STATUS_FLAG_LBP_FRZ (1ULL << 58) /* v4 */ 173 #define IA_GLOBAL_STATUS_FLAG_TRACETOPAPMI (1ULL << 55) /* v4 */ 174 175 #define IA_GLOBAL_INUSE 0x392 /* v4 */ 176 177 /* 178 * Offcore response configuration. 179 */ 180 #define IA_OFFCORE_RSP0 0x1A6 181 #define IA_OFFCORE_RSP1 0x1A7 182 183 struct pmc_md_iaf_pmc { 184 uint64_t pm_iaf_ctrl; 185 }; 186 187 struct pmc_md_iap_pmc { 188 uint64_t pm_iap_evsel; 189 uint64_t pm_iap_rsp; 190 }; 191 192 /* 193 * Prototypes. 194 */ 195 196 int pmc_core_initialize(struct pmc_mdep *_md, int _maxcpu, 197 int _version_override); 198 void pmc_core_finalize(struct pmc_mdep *_md); 199 200 int pmc_iaf_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width); 201 void pmc_iaf_finalize(struct pmc_mdep *_md); 202 203 int pmc_iap_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width, 204 int _flags); 205 void pmc_iap_finalize(struct pmc_mdep *_md); 206 207 #endif /* _KERNEL */ 208 #endif /* _DEV_HWPMC_CORE_H */ 209