[RFC PATCH v2 1/4] rtla/osnoise: Add IPI tracking cmdline option

[Valentin Schneider <vschneid@redhat.com>]

Later commits will add IPI tracking to osnoise top. To avoid breaking
existing scripts, this new feature will be gated behind a new -i option.

Suggested-by: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: Valentin Schneider <vschneid@redhat.com>
---
 Documentation/tools/rtla/rtla-osnoise-top.rst | 4 ++++
 tools/tracing/rtla/src/cli.c                  | 1 +
 tools/tracing/rtla/src/cli_p.h                | 3 +++
 tools/tracing/rtla/src/common.h               | 1 +
 4 files changed, 9 insertions(+)

diff --git a/Documentation/tools/rtla/rtla-osnoise-top.rst b/Documentation/tools/rtla/rtla-osnoise-top.rst
index b91c02ac2bbe1..98f77f8971a69 100644
--- a/Documentation/tools/rtla/rtla-osnoise-top.rst
+++ b/Documentation/tools/rtla/rtla-osnoise-top.rst
@@ -28,6 +28,10 @@ OPTIONS
 =======
 .. include:: common_osnoise_options.txt
 
+**-i**, **--ipi**
+
+	Track sources of IPIs.
+
 .. include:: common_top_options.txt
 
 .. include:: common_options.txt
diff --git a/tools/tracing/rtla/src/cli.c b/tools/tracing/rtla/src/cli.c
index c5279c9875310..eb1e76a6b0dea 100644
--- a/tools/tracing/rtla/src/cli.c
+++ b/tools/tracing/rtla/src/cli.c
@@ -78,6 +78,7 @@ struct common_params *osnoise_top_parse_args(int argc, char **argv)
 		RTLA_OPT_STOP_TOTAL('S', "stop-total", "total sample"),
 		OSNOISE_OPT_THRESHOLD,
 		RTLA_OPT_TRACE_OUTPUT("osnoise", opt_osnoise_trace_output_cb),
+		OSNOISE_OPT_IPI,
 
 	OPT_GROUP("Event Configuration:"),
 		RTLA_OPT_EVENT,
diff --git a/tools/tracing/rtla/src/cli_p.h b/tools/tracing/rtla/src/cli_p.h
index 3c939de9abf02..7d3f982cfabdb 100644
--- a/tools/tracing/rtla/src/cli_p.h
+++ b/tools/tracing/rtla/src/cli_p.h
@@ -305,6 +305,9 @@ static int opt_filter_cb(const struct option *opt, const char *arg, int unset)
 	"the minimum delta to be considered a noise", \
 	opt_llong_callback)
 
+#define OSNOISE_OPT_IPI OPT_BOOLEAN('i', "ipi", &params->common.ipi, \
+	"track sources of IPIs")
+
 /*
  * Callback functions for command line options for osnoise tools
  */
diff --git a/tools/tracing/rtla/src/common.h b/tools/tracing/rtla/src/common.h
index 04b287a03f6d4..045253230fcf2 100644
--- a/tools/tracing/rtla/src/common.h
+++ b/tools/tracing/rtla/src/common.h
@@ -108,6 +108,7 @@ struct common_params {
 	bool			kernel_workload;
 	bool			user_data;
 	bool			aa_only;
+	bool			ipi;
 
 	struct actions		threshold_actions;
 	struct actions		end_actions;
-- 
2.54.0