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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 |
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12 | |
13 | /* ETMv3.5/PTM's ETMCR config bit */ | |
14 | #define ETM_OPT_CYCACC 12 | |
15 | #define ETM_OPT_TS 28 | |
b97971be | 16 | #define ETM_OPT_RETSTK 29 |
0bcbf2e3 | 17 | |
df770ff0 ML |
18 | /* ETMv4 CONFIGR programming bits for the ETM OPTs */ |
19 | #define ETM4_CFG_BIT_CYCACC 4 | |
20 | #define ETM4_CFG_BIT_TS 11 | |
21 | #define ETM4_CFG_BIT_RETSTK 12 | |
22 | ||
17534ceb MP |
23 | static inline int coresight_get_trace_id(int cpu) |
24 | { | |
25 | /* | |
26 | * A trace ID of value 0 is invalid, so let's start at some | |
27 | * random value that fits in 7 bits and go from there. Since | |
28 | * the common convention is to have data trace IDs be I(N) + 1, | |
29 | * set instruction trace IDs as a function of the CPU number. | |
30 | */ | |
31 | return (CORESIGHT_ETM_PMU_SEED + (cpu * 2)); | |
32 | } | |
33 | ||
0bcbf2e3 | 34 | #endif |