diff options
Diffstat (limited to 'tools/tracing/rtla/src/timerlat.h')
| -rw-r--r-- | tools/tracing/rtla/src/timerlat.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/tracing/rtla/src/timerlat.h b/tools/tracing/rtla/src/timerlat.h index 73045aef23fa..e0a553545d03 100644 --- a/tools/tracing/rtla/src/timerlat.h +++ b/tools/tracing/rtla/src/timerlat.h @@ -1,6 +1,23 @@ // SPDX-License-Identifier: GPL-2.0 #include "osnoise.h" +/* + * Define timerlat tracing mode. + * + * There are three tracing modes: + * - tracefs-only, used when BPF is unavailable. + * - BPF-only, used when BPF is available and neither trace saving nor + * auto-analysis are enabled. + * - mixed mode, used when BPF is available and either trace saving or + * auto-analysis is enabled (which rely on sample collection through + * tracefs). + */ +enum timerlat_tracing_mode { + TRACING_MODE_BPF, + TRACING_MODE_TRACEFS, + TRACING_MODE_MIXED, +}; + struct timerlat_params { /* Common params */ char *cpus; @@ -30,6 +47,7 @@ struct timerlat_params { cpu_set_t hk_cpu_set; struct sched_attr sched_param; struct trace_events *events; + enum timerlat_tracing_mode mode; union { struct { /* top only */ |