[PATCH v4 3/8] rv/tlob: add tlob model DOT file

[wen.yang@linux.dev]

From: Wen Yang <wen.yang@linux.dev>

Add the Graphviz DOT specification of the tlob hybrid automaton to
tools/verification/models/.  The model has three states (running,
waiting, sleeping), four transitions (switch_in, preempt, wakeup,
sleep), and a single clock invariant clk_elapsed < BUDGET_NS() active
in all states.

Suggested-by: Gabriele Monaco <gmonaco@redhat.com>
Signed-off-by: Wen Yang <wen.yang@linux.dev>
---
 tools/verification/models/tlob.dot | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 tools/verification/models/tlob.dot

diff --git a/tools/verification/models/tlob.dot b/tools/verification/models/tlob.dot
new file mode 100644
index 000000000000..a1834daff2ed
--- /dev/null
+++ b/tools/verification/models/tlob.dot
@@ -0,0 +1,22 @@
+digraph state_automaton {
+	center = true;
+	size = "7,11";
+	{node [shape = plaintext, style=invis, label=""] "__init_running"};
+	{node [shape = ellipse] "running"};
+	{node [shape = plaintext] "running"};
+	{node [shape = plaintext] "waiting"};
+	{node [shape = plaintext] "sleeping"};
+	"__init_running" -> "running";
+	"running"  -> "running"  [ label = "start;reset(clk_elapsed)" ];
+	"running"  [label = "running\nclk_elapsed < BUDGET_NS()",  color = green3];
+	"waiting"  [label = "waiting\nclk_elapsed < BUDGET_NS()"];
+	"sleeping" [label = "sleeping\nclk_elapsed < BUDGET_NS()"];
+	"running"  -> "sleeping" [ label = "sleep" ];
+	"running"  -> "waiting"  [ label = "preempt" ];
+	"waiting"  -> "running"  [ label = "switch_in" ];
+	"sleeping" -> "waiting"  [ label = "wakeup" ];
+	{ rank = min ;
+		"__init_running";
+		"running";
+	}
+}
-- 
2.25.1