diff options
| author | Mao Jinlong <quic_jinlmao@quicinc.com> | 2024-11-21 14:28:28 +0800 |
|---|---|---|
| committer | Suzuki K Poulose <suzuki.poulose@arm.com> | 2024-12-11 10:15:37 +0000 |
| commit | fd9b7e8e9fbc23d69fa4accc881dea2cf13a2e2e (patch) | |
| tree | 276b59e0a5bdd49d233874db7a7088200d1ec41b /include/linux/coresight.h | |
| parent | d0a10da78cbfabcbc2eda87ac238bc03bb2b2c81 (diff) | |
coresight: Add support to get static id for system trace sources
Dynamic trace id was introduced in coresight subsystem, so trace id is
allocated dynamically. However, some hardware ATB source has static trace
id and it cannot be changed via software programming. For such source,
it can call coresight_get_static_trace_id to get the fixed trace id from
device node and pass id to coresight_trace_id_get_static_system_id to
reserve the id.
Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20241121062829.11571-3-quic_jinlmao@quicinc.com
Diffstat (limited to 'include/linux/coresight.h')
| -rw-r--r-- | include/linux/coresight.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/coresight.h b/include/linux/coresight.h index 834029cb9ba2..055ce5cd5c44 100644 --- a/include/linux/coresight.h +++ b/include/linux/coresight.h @@ -662,6 +662,7 @@ void coresight_relaxed_write64(struct coresight_device *csdev, void coresight_write64(struct coresight_device *csdev, u64 val, u32 offset); extern int coresight_get_cpu(struct device *dev); +extern int coresight_get_static_trace_id(struct device *dev, u32 *id); struct coresight_platform_data *coresight_get_platform_data(struct device *dev); struct coresight_connection * |