Merge tag 'trace-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux...

[linux-2.6-microblaze.git] / include / linux / rv.h

diff --git a/include/linux/rv.h b/include/linux/rv.h
new file mode 100644 (file)
index 0000000..8883b41
--- /dev/null
+++ b/include/linux/rv.h
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Runtime Verification.
+ *
+ * For futher information, see: kernel/trace/rv/rv.c.
+ */
+#ifndef _LINUX_RV_H
+#define _LINUX_RV_H
+
+#define MAX_DA_NAME_LEN        24
+
+#ifdef CONFIG_RV
+/*
+ * Deterministic automaton per-object variables.
+ */
+struct da_monitor {
+       bool            monitoring;
+       unsigned int    curr_state;
+};
+
+/*
+ * Per-task RV monitors count. Nowadays fixed in RV_PER_TASK_MONITORS.
+ * If we find justification for more monitors, we can think about
+ * adding more or developing a dynamic method. So far, none of
+ * these are justified.
+ */
+#define RV_PER_TASK_MONITORS           1
+#define RV_PER_TASK_MONITOR_INIT       (RV_PER_TASK_MONITORS)
+
+/*
+ * Futher monitor types are expected, so make this a union.
+ */
+union rv_task_monitor {
+       struct da_monitor da_mon;
+};
+
+#ifdef CONFIG_RV_REACTORS
+struct rv_reactor {
+       const char              *name;
+       const char              *description;
+       void                    (*react)(char *msg);
+};
+#endif
+
+struct rv_monitor {
+       const char              *name;
+       const char              *description;
+       bool                    enabled;
+       int                     (*enable)(void);
+       void                    (*disable)(void);
+       void                    (*reset)(void);
+#ifdef CONFIG_RV_REACTORS
+       void                    (*react)(char *msg);
+#endif
+};
+
+bool rv_monitoring_on(void);
+int rv_unregister_monitor(struct rv_monitor *monitor);
+int rv_register_monitor(struct rv_monitor *monitor);
+int rv_get_task_monitor_slot(void);
+void rv_put_task_monitor_slot(int slot);
+
+#ifdef CONFIG_RV_REACTORS
+bool rv_reacting_on(void);
+int rv_unregister_reactor(struct rv_reactor *reactor);
+int rv_register_reactor(struct rv_reactor *reactor);
+#endif /* CONFIG_RV_REACTORS */
+
+#endif /* CONFIG_RV */
+#endif /* _LINUX_RV_H */