| Mathieu Poirier | 39ff526 | 2016-08-11 10:20:56 -0600 | [diff] [blame] | 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 _LINUX_CORESIGHT_PMU_H |
| 19 | #define _LINUX_CORESIGHT_PMU_H |
| 20 | |
| 21 | #define CORESIGHT_ETM_PMU_NAME "cs_etm" |
| 22 | #define CORESIGHT_ETM_PMU_SEED 0x10 |
| 23 | |
| 24 | /* ETMv3.5/PTM's ETMCR config bit */ |
| 25 | #define ETM_OPT_CYCACC 12 |
| 26 | #define ETM_OPT_TS 28 |
| 27 | |
| 28 | static inline int coresight_get_trace_id(int cpu) |
| 29 | { |
| 30 | /* |
| 31 | * A trace ID of value 0 is invalid, so let's start at some |
| 32 | * random value that fits in 7 bits and go from there. Since |
| 33 | * the common convention is to have data trace IDs be I(N) + 1, |
| 34 | * set instruction trace IDs as a function of the CPU number. |
| 35 | */ |
| 36 | return (CORESIGHT_ETM_PMU_SEED + (cpu * 2)); |
| 37 | } |
| 38 | |
| 39 | #endif |