Documentation/rv: Add docs for the sched monitors

Add man page and kernel documentation for the sched monitors, as sched
is a container of other monitors, document all in the same page.
sched is the first nested monitor, also explain what is a nested monitor
and how enabling containers or children monitors work.

To: Ingo Molnar <mingo@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: John Kacur <jkacur@redhat.com>
Cc: Clark Williams <williams@redhat.com>
Link: https://lore.kernel.org/20250305140406.350227-9-gmonaco@redhat.com
Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

1 files changed, 69 insertions, 0 deletions

diff --git a/Documentation/tools/rv/rv-mon-sched.rst b/Documentation/tools/rv/rv-mon-sched.rst
new file mode 100644
index 000000000000..da0fe4c79ae5
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+++ b/Documentation/tools/rv/rv-mon-sched.rst
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+.. SPDX-License-Identifier: GPL-2.0
+
+============
+rv-mon-sched
+============
+-----------------------------
+Scheduler monitors collection
+-----------------------------
+
+:Manual section: 1
+
+SYNOPSIS
+========
+
+**rv mon sched** [*OPTIONS*]
+
+**rv mon <NESTED_MONITOR>** [*OPTIONS*]
+
+**rv mon sched:<NESTED_MONITOR>** [*OPTIONS*]
+
+DESCRIPTION
+===========
+
+The scheduler monitor collection is a container for several monitors to model
+the behaviour of the scheduler. Each monitor describes a specification that
+the scheduler should follow.
+
+As a monitor container, it will enable all nested monitors and set them
+according to OPTIONS.
+Nevertheless nested monitors can also be activated independently both by name
+and by specifying sched: , e.g. to enable only monitor tss you can do any of:
+
+    # rv mon sched:tss
+
+    # rv mon tss
+
+See kernel documentation for further information about this monitor:
+<https://docs.kernel.org/trace/rv/monitor_sched.html>
+
+OPTIONS
+=======
+
+.. include:: common_ikm.rst
+
+NESTED MONITOR
+==============
+
+The available nested monitors are:
+  * scpd: schedule called with preemption disabled
+  * snep: schedule does not enable preempt
+  * sncid: schedule not called with interrupt disabled
+  * snroc: set non runnable on its own context
+  * sco: scheduling context operations
+  * tss: task switch while scheduling
+
+SEE ALSO
+========
+
+**rv**\(1), **rv-mon**\(1)
+
+Linux kernel *RV* documentation:
+<https://www.kernel.org/doc/html/latest/trace/rv/index.html>
+
+AUTHOR
+======
+
+Written by Gabriele Monaco <gmonaco@redhat.com>
+
+.. include:: common_appendix.rst