From: Wen Yang <[email protected]>

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

Suggested-by: Gabriele Monaco <[email protected]>
Signed-off-by: Wen Yang <[email protected]>
---
 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";
+       }
+}
-- 
2.43.0


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