projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 8a9fd832 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 0bcbf2e3 MP |
2 | /* |
| 3 | * Copyright(C) 2015 Linaro Limited. All rights reserved. | |
| 4 | * Author: Mathieu Poirier <mathieu.poirier@linaro.org> | |
| 0bcbf2e3 MP |
5 | */ |
| 6 | ||
| 7 | #ifndef _LINUX_CORESIGHT_PMU_H | |
| 8 | #define _LINUX_CORESIGHT_PMU_H | |
| 9 | ||
| 10 | #define CORESIGHT_ETM_PMU_NAME "cs_etm" | |
| 17534ceb | 11 | #define CORESIGHT_ETM_PMU_SEED 0x10 |
| 0bcbf2e3 MP |
12 | |
| 13 | /* ETMv3.5/PTM's ETMCR config bit */ | |
| 14 | #define ETM_OPT_CYCACC 12 | |
| 82500a81 | 15 | #define ETM_OPT_CTXTID 14 |
| 0bcbf2e3 | 16 | #define ETM_OPT_TS 28 |
| b97971be | 17 | #define ETM_OPT_RETSTK 29 |
| 0bcbf2e3 | 18 | |
| df770ff0 ML |
19 | /* ETMv4 CONFIGR programming bits for the ETM OPTs */ |
| 20 | #define ETM4_CFG_BIT_CYCACC 4 | |
| 82500a81 | 21 | #define ETM4_CFG_BIT_CTXTID 6 |
| df770ff0 ML |
22 | #define ETM4_CFG_BIT_TS 11 |
| 23 | #define ETM4_CFG_BIT_RETSTK 12 | |
| 24 | ||
| 17534ceb MP |
25 | static inline int coresight_get_trace_id(int cpu) |
| 26 | { | |
| 27 | /* | |
| 28 | * A trace ID of value 0 is invalid, so let's start at some | |
| 29 | * random value that fits in 7 bits and go from there. Since | |
| 30 | * the common convention is to have data trace IDs be I(N) + 1, | |
| 31 | * set instruction trace IDs as a function of the CPU number. | |
| 32 | */ | |
| 33 | return (CORESIGHT_ETM_PMU_SEED + (cpu * 2)); | |
| 34 | } | |
| 35 | ||
| 0bcbf2e3 | 36 | #endif |