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 * $FreeBSD$ 27 */ 28 29 #ifndef _DEV_HWPMC_CORE_H_ 30 #define _DEV_HWPMC_CORE_H_ 1 31 32 /* 33 * Fixed-function PMCs. 34 */ 35 struct 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 */ 47 struct pmc_md_iap_op_pmcallocate { 48 uint32_t pm_iap_config; 49 }; 50 51 #define IAP_EVSEL(C) ((C) & 0xFF) 52 #define IAP_UMASK(C) ((C) & 0xFF00) 53 #define IAP_USR (1 << 16) 54 #define IAP_OS (1 << 17) 55 #define IAP_EDGE (1 << 18) 56 #define IAP_INT (1 << 20) 57 #define IAP_ANY (1 << 21) 58 #define IAP_EN (1 << 22) 59 #define IAP_INV (1 << 23) 60 #define IAP_CMASK(C) (((C) & 0xFF) << 24) 61 62 #ifdef _KERNEL 63 64 /* 65 * Fixed-function counters. 66 */ 67 #define IAF_MASK 0xF 68 69 #define IAF_CTR0 0x309 70 #define IAF_CTR1 0x30A 71 #define IAF_CTR2 0x30B 72 73 #define IAF_OFFSET 32 74 #define IAF_CTRL 0x38D 75 76 /* 77 * Programmable counters. 78 */ 79 #define IAP_PMC0 0x0C1 80 #define IAP_PMC1 0x0C2 81 82 #define IAP_EVSEL0 0x186 83 #define IAP_EVSEL1 0x187 84 85 /* 86 * Simplified programming interface in Intel Performance Architecture 87 * v2 and later. 88 */ 89 #define IA_GLOBAL_STATUS 0x38E 90 #define IA_GLOBAL_CTRL 0x38F 91 #define IA_GLOBAL_OVF_CTRL 0x390 92 93 #define IA_GLOBAL_STATUS_FLAG_CONDCHG (1ULL << 63) 94 #define IA_GLOBAL_STATUS_FLAG_OVFBUF (1ULL << 62) 95 96 struct pmc_md_iaf_pmc { 97 uint64_t pm_iaf_ctrl; 98 }; 99 100 struct pmc_md_iap_pmc { 101 uint32_t pm_iap_evsel; 102 }; 103 104 /* 105 * Prototypes. 106 */ 107 108 int pmc_core_initialize(struct pmc_mdep *_md, int _maxcpu); 109 void pmc_core_finalize(struct pmc_mdep *_md); 110 111 void pmc_core_mark_started(int _cpu, int _pmc); 112 113 int pmc_iaf_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width); 114 void pmc_iaf_finalize(struct pmc_mdep *_md); 115 116 int pmc_iap_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width, 117 int _flags); 118 void pmc_iap_finalize(struct pmc_mdep *_md); 119 120 #endif /* _KERNEL */ 121 #endif /* _DEV_HWPMC_CORE_H */ 122