1 /* 2 * Copyright(C) 2015 Linaro Limited. All rights reserved. 3 * Author: Mathieu Poirier <mathieu.poirier@linaro.org> 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 as published by 7 * the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program. If not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 #ifndef INCLUDE__UTIL_PERF_CS_ETM_H__ 19 #define INCLUDE__UTIL_PERF_CS_ETM_H__ 20 21 /* Versionning header in case things need tro change in the future. That way 22 * decoding of old snapshot is still possible. 23 */ 24 enum { 25 /* Starting with 0x0 */ 26 CS_HEADER_VERSION_0, 27 /* PMU->type (32 bit), total # of CPUs (32 bit) */ 28 CS_PMU_TYPE_CPUS, 29 CS_ETM_SNAPSHOT, 30 CS_HEADER_VERSION_0_MAX, 31 }; 32 33 /* Beginning of header common to both ETMv3 and V4 */ 34 enum { 35 CS_ETM_MAGIC, 36 CS_ETM_CPU, 37 }; 38 39 /* ETMv3/PTM metadata */ 40 enum { 41 /* Dynamic, configurable parameters */ 42 CS_ETM_ETMCR = CS_ETM_CPU + 1, 43 CS_ETM_ETMTRACEIDR, 44 /* RO, taken from sysFS */ 45 CS_ETM_ETMCCER, 46 CS_ETM_ETMIDR, 47 CS_ETM_PRIV_MAX, 48 }; 49 50 /* ETMv4 metadata */ 51 enum { 52 /* Dynamic, configurable parameters */ 53 CS_ETMV4_TRCCONFIGR = CS_ETM_CPU + 1, 54 CS_ETMV4_TRCTRACEIDR, 55 /* RO, taken from sysFS */ 56 CS_ETMV4_TRCIDR0, 57 CS_ETMV4_TRCIDR1, 58 CS_ETMV4_TRCIDR2, 59 CS_ETMV4_TRCIDR8, 60 CS_ETMV4_TRCAUTHSTATUS, 61 CS_ETMV4_PRIV_MAX, 62 }; 63 64 #define KiB(x) ((x) * 1024) 65 #define MiB(x) ((x) * 1024 * 1024) 66 67 #define CS_ETM_HEADER_SIZE (CS_HEADER_VERSION_0_MAX * sizeof(u64)) 68 69 static const u64 __perf_cs_etmv3_magic = 0x3030303030303030ULL; 70 static const u64 __perf_cs_etmv4_magic = 0x4040404040404040ULL; 71 #define CS_ETMV3_PRIV_SIZE (CS_ETM_PRIV_MAX * sizeof(u64)) 72 #define CS_ETMV4_PRIV_SIZE (CS_ETMV4_PRIV_MAX * sizeof(u64)) 73 74 #endif 75