hwpmc_core.h revision 210012
1/*- 2 * Copyright (c) 2008 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: head/sys/dev/hwpmc/hwpmc_core.h 210012 2010-07-13 19:37:45Z gnn $ 27 */ 28 29#ifndef _DEV_HWPMC_CORE_H_ 30#define _DEV_HWPMC_CORE_H_ 1 31 32/* 33 * Fixed-function PMCs. 34 */ 35struct pmc_md_iaf_op_pmcallocate { 36 uint16_t pm_iaf_flags; /* additional flags */ 37}; 38 39#define IAF_OS 0x1 40#define IAF_USR 0x2 41#define IAF_ANY 0x4 42#define IAF_PMI 0x8 43 44/* 45 * Programmable PMCs. 46 */ 47struct pmc_md_iap_op_pmcallocate { 48 uint32_t pm_iap_config; 49 uint32_t pm_iap_rsp; 50}; 51 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) 62 63#define IA_OFFCORE_RSP_MASK 0xF7FF 64 65#ifdef _KERNEL 66 67/* 68 * Fixed-function counters. 69 */ 70 71#define IAF_MASK 0xF 72 73#define IAF_COUNTER_MASK 0x0000ffffffffffff 74#define IAF_CTR0 0x309 75#define IAF_CTR1 0x30A 76#define IAF_CTR2 0x30B 77 78/* 79 * The IAF_CTRL MSR is laid out in the following way. 80 * 81 * Bit Position Use 82 * 63 - 12 Reserved (do not touch) 83 * 11 Ctr 2 PMI 84 * 10 Reserved (do not touch) 85 * 9-8 Ctr 2 Enable 86 * 7 Ctr 1 PMI 87 * 6 Reserved (do not touch) 88 * 5-4 Ctr 1 Enable 89 * 3 Ctr 0 PMI 90 * 2 Reserved (do not touch) 91 * 1-0 Ctr 0 Enable (3: All Levels, 2: User, 1: OS, 0: Disable) 92 */ 93 94#define IAF_OFFSET 32 95#define IAF_CTRL 0x38D 96#define IAF_CTRL_MASK 0x0000000000000bbb 97 98/* 99 * Programmable counters. 100 */ 101 102#define IAP_PMC0 0x0C1 103 104/* 105 * IAP_EVSEL(n) is laid out in the following way. 106 * 107 * Bit Position Use 108 * 63-31 Reserved (do not touch) 109 * 31-24 Counter Mask 110 * 23 Invert 111 * 22 Enable 112 * 21 Reserved (do not touch) 113 * 20 APIC Interrupt Enable 114 * 19 Pin Control 115 * 18 Edge Detect 116 * 17 OS 117 * 16 User 118 * 15-8 Unit Mask 119 * 7-0 Event Select 120 */ 121 122#define IAP_EVSEL_MASK 0x00000000ffdfffff 123#define IAP_EVSEL0 0x186 124 125/* 126 * Simplified programming interface in Intel Performance Architecture 127 * v2 and later. 128 */ 129 130#define IA_GLOBAL_STATUS 0x38E 131#define IA_GLOBAL_CTRL 0x38F 132 133/* 134 * IA_GLOBAL_CTRL is layed out in the following way. 135 * 136 * Bit Position Use 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 142 */ 143 144/* The mask is only for the fixed porttion of the register. */ 145#define IAF_GLOBAL_CTRL_MASK 0x0000000700000000 146 147#define IA_GLOBAL_OVF_CTRL 0x390 148 149#define IA_GLOBAL_STATUS_FLAG_CONDCHG (1ULL << 63) 150#define IA_GLOBAL_STATUS_FLAG_OVFBUF (1ULL << 62) 151 152/* 153 * Offcore response configuration. 154 */ 155#define IA_OFFCORE_RSP0 0x1A6 156#define IA_OFFCORE_RSP1 0x1A7 157 158struct pmc_md_iaf_pmc { 159 uint64_t pm_iaf_ctrl; 160}; 161 162struct pmc_md_iap_pmc { 163 uint32_t pm_iap_evsel; 164 uint32_t pm_iap_rsp; 165}; 166 167/* 168 * Prototypes. 169 */ 170 171int pmc_core_initialize(struct pmc_mdep *_md, int _maxcpu); 172void pmc_core_finalize(struct pmc_mdep *_md); 173 174void pmc_core_mark_started(int _cpu, int _pmc); 175 176int pmc_iaf_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width); 177void pmc_iaf_finalize(struct pmc_mdep *_md); 178 179int pmc_iap_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width, 180 int _flags); 181void pmc_iap_finalize(struct pmc_mdep *_md); 182 183#endif /* _KERNEL */ 184#endif /* _DEV_HWPMC_CORE_H */ 185