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-rw-r--r--kernel/trace/rv/monitors/sleep/sleep.h257
1 files changed, 257 insertions, 0 deletions
diff --git a/kernel/trace/rv/monitors/sleep/sleep.h b/kernel/trace/rv/monitors/sleep/sleep.h
new file mode 100644
index 000000000000..2ab46fd218d2
--- /dev/null
+++ b/kernel/trace/rv/monitors/sleep/sleep.h
@@ -0,0 +1,257 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * C implementation of Buchi automaton, automatically generated by
+ * tools/verification/rvgen from the linear temporal logic specification.
+ * For further information, see kernel documentation:
+ * Documentation/trace/rv/linear_temporal_logic.rst
+ */
+
+#include <linux/rv.h>
+
+#define MONITOR_NAME sleep
+
+enum ltl_atom {
+ LTL_ABORT_SLEEP,
+ LTL_BLOCK_ON_RT_MUTEX,
+ LTL_CLOCK_NANOSLEEP,
+ LTL_FUTEX_LOCK_PI,
+ LTL_FUTEX_WAIT,
+ LTL_KERNEL_THREAD,
+ LTL_KTHREAD_SHOULD_STOP,
+ LTL_NANOSLEEP_CLOCK_MONOTONIC,
+ LTL_NANOSLEEP_CLOCK_TAI,
+ LTL_NANOSLEEP_TIMER_ABSTIME,
+ LTL_RT,
+ LTL_SLEEP,
+ LTL_TASK_IS_MIGRATION,
+ LTL_TASK_IS_RCU,
+ LTL_WAKE,
+ LTL_WOKEN_BY_EQUAL_OR_HIGHER_PRIO,
+ LTL_WOKEN_BY_HARDIRQ,
+ LTL_WOKEN_BY_NMI,
+ LTL_NUM_ATOM
+};
+static_assert(LTL_NUM_ATOM <= RV_MAX_LTL_ATOM);
+
+static const char *ltl_atom_str(enum ltl_atom atom)
+{
+ static const char *const names[] = {
+ "ab_sl",
+ "bl_on_rt_mu",
+ "cl_na",
+ "fu_lo_pi",
+ "fu_wa",
+ "ker_th",
+ "kth_sh_st",
+ "na_cl_mo",
+ "na_cl_ta",
+ "na_ti_ab",
+ "rt",
+ "sl",
+ "ta_mi",
+ "ta_rc",
+ "wak",
+ "wo_eq_hi_pr",
+ "wo_ha",
+ "wo_nm",
+ };
+
+ return names[atom];
+}
+
+enum ltl_buchi_state {
+ S0,
+ S1,
+ S2,
+ S3,
+ S4,
+ S5,
+ S6,
+ S7,
+ RV_NUM_BA_STATES
+};
+static_assert(RV_NUM_BA_STATES <= RV_MAX_BA_STATES);
+
+static void ltl_start(struct task_struct *task, struct ltl_monitor *mon)
+{
+ bool task_is_migration = test_bit(LTL_TASK_IS_MIGRATION, mon->atoms);
+ bool task_is_rcu = test_bit(LTL_TASK_IS_RCU, mon->atoms);
+ bool val40 = task_is_rcu || task_is_migration;
+ bool futex_lock_pi = test_bit(LTL_FUTEX_LOCK_PI, mon->atoms);
+ bool val41 = futex_lock_pi || val40;
+ bool block_on_rt_mutex = test_bit(LTL_BLOCK_ON_RT_MUTEX, mon->atoms);
+ bool val5 = block_on_rt_mutex || val41;
+ bool kthread_should_stop = test_bit(LTL_KTHREAD_SHOULD_STOP, mon->atoms);
+ bool abort_sleep = test_bit(LTL_ABORT_SLEEP, mon->atoms);
+ bool val32 = abort_sleep || kthread_should_stop;
+ bool woken_by_nmi = test_bit(LTL_WOKEN_BY_NMI, mon->atoms);
+ bool val33 = woken_by_nmi || val32;
+ bool woken_by_hardirq = test_bit(LTL_WOKEN_BY_HARDIRQ, mon->atoms);
+ bool val34 = woken_by_hardirq || val33;
+ bool woken_by_equal_or_higher_prio = test_bit(LTL_WOKEN_BY_EQUAL_OR_HIGHER_PRIO,
+ mon->atoms);
+ bool val14 = woken_by_equal_or_higher_prio || val34;
+ bool wake = test_bit(LTL_WAKE, mon->atoms);
+ bool val13 = !wake;
+ bool kernel_thread = test_bit(LTL_KERNEL_THREAD, mon->atoms);
+ bool nanosleep_clock_tai = test_bit(LTL_NANOSLEEP_CLOCK_TAI, mon->atoms);
+ bool nanosleep_clock_monotonic = test_bit(LTL_NANOSLEEP_CLOCK_MONOTONIC, mon->atoms);
+ bool val24 = nanosleep_clock_monotonic || nanosleep_clock_tai;
+ bool nanosleep_timer_abstime = test_bit(LTL_NANOSLEEP_TIMER_ABSTIME, mon->atoms);
+ bool val25 = nanosleep_timer_abstime && val24;
+ bool clock_nanosleep = test_bit(LTL_CLOCK_NANOSLEEP, mon->atoms);
+ bool val18 = clock_nanosleep && val25;
+ bool futex_wait = test_bit(LTL_FUTEX_WAIT, mon->atoms);
+ bool val9 = futex_wait || val18;
+ bool val11 = val9 || kernel_thread;
+ bool sleep = test_bit(LTL_SLEEP, mon->atoms);
+ bool val2 = !sleep;
+ bool rt = test_bit(LTL_RT, mon->atoms);
+ bool val1 = !rt;
+ bool val3 = val1 || val2;
+
+ if (val3)
+ __set_bit(S0, mon->states);
+ if (val11 && val13)
+ __set_bit(S1, mon->states);
+ if (val11 && val14)
+ __set_bit(S4, mon->states);
+ if (val5)
+ __set_bit(S5, mon->states);
+}
+
+static void
+ltl_possible_next_states(struct ltl_monitor *mon, unsigned int state, unsigned long *next)
+{
+ bool task_is_migration = test_bit(LTL_TASK_IS_MIGRATION, mon->atoms);
+ bool task_is_rcu = test_bit(LTL_TASK_IS_RCU, mon->atoms);
+ bool val40 = task_is_rcu || task_is_migration;
+ bool futex_lock_pi = test_bit(LTL_FUTEX_LOCK_PI, mon->atoms);
+ bool val41 = futex_lock_pi || val40;
+ bool block_on_rt_mutex = test_bit(LTL_BLOCK_ON_RT_MUTEX, mon->atoms);
+ bool val5 = block_on_rt_mutex || val41;
+ bool kthread_should_stop = test_bit(LTL_KTHREAD_SHOULD_STOP, mon->atoms);
+ bool abort_sleep = test_bit(LTL_ABORT_SLEEP, mon->atoms);
+ bool val32 = abort_sleep || kthread_should_stop;
+ bool woken_by_nmi = test_bit(LTL_WOKEN_BY_NMI, mon->atoms);
+ bool val33 = woken_by_nmi || val32;
+ bool woken_by_hardirq = test_bit(LTL_WOKEN_BY_HARDIRQ, mon->atoms);
+ bool val34 = woken_by_hardirq || val33;
+ bool woken_by_equal_or_higher_prio = test_bit(LTL_WOKEN_BY_EQUAL_OR_HIGHER_PRIO,
+ mon->atoms);
+ bool val14 = woken_by_equal_or_higher_prio || val34;
+ bool wake = test_bit(LTL_WAKE, mon->atoms);
+ bool val13 = !wake;
+ bool kernel_thread = test_bit(LTL_KERNEL_THREAD, mon->atoms);
+ bool nanosleep_clock_tai = test_bit(LTL_NANOSLEEP_CLOCK_TAI, mon->atoms);
+ bool nanosleep_clock_monotonic = test_bit(LTL_NANOSLEEP_CLOCK_MONOTONIC, mon->atoms);
+ bool val24 = nanosleep_clock_monotonic || nanosleep_clock_tai;
+ bool nanosleep_timer_abstime = test_bit(LTL_NANOSLEEP_TIMER_ABSTIME, mon->atoms);
+ bool val25 = nanosleep_timer_abstime && val24;
+ bool clock_nanosleep = test_bit(LTL_CLOCK_NANOSLEEP, mon->atoms);
+ bool val18 = clock_nanosleep && val25;
+ bool futex_wait = test_bit(LTL_FUTEX_WAIT, mon->atoms);
+ bool val9 = futex_wait || val18;
+ bool val11 = val9 || kernel_thread;
+ bool sleep = test_bit(LTL_SLEEP, mon->atoms);
+ bool val2 = !sleep;
+ bool rt = test_bit(LTL_RT, mon->atoms);
+ bool val1 = !rt;
+ bool val3 = val1 || val2;
+
+ switch (state) {
+ case S0:
+ if (val3)
+ __set_bit(S0, next);
+ if (val11 && val13)
+ __set_bit(S1, next);
+ if (val11 && val14)
+ __set_bit(S4, next);
+ if (val5)
+ __set_bit(S5, next);
+ break;
+ case S1:
+ if (val11 && val13)
+ __set_bit(S1, next);
+ if (val13 && val3)
+ __set_bit(S2, next);
+ if (val14 && val3)
+ __set_bit(S3, next);
+ if (val11 && val14)
+ __set_bit(S4, next);
+ if (val13 && val5)
+ __set_bit(S6, next);
+ if (val14 && val5)
+ __set_bit(S7, next);
+ break;
+ case S2:
+ if (val11 && val13)
+ __set_bit(S1, next);
+ if (val13 && val3)
+ __set_bit(S2, next);
+ if (val14 && val3)
+ __set_bit(S3, next);
+ if (val11 && val14)
+ __set_bit(S4, next);
+ if (val13 && val5)
+ __set_bit(S6, next);
+ if (val14 && val5)
+ __set_bit(S7, next);
+ break;
+ case S3:
+ if (val3)
+ __set_bit(S0, next);
+ if (val11 && val13)
+ __set_bit(S1, next);
+ if (val11 && val14)
+ __set_bit(S4, next);
+ if (val5)
+ __set_bit(S5, next);
+ break;
+ case S4:
+ if (val3)
+ __set_bit(S0, next);
+ if (val11 && val13)
+ __set_bit(S1, next);
+ if (val11 && val14)
+ __set_bit(S4, next);
+ if (val5)
+ __set_bit(S5, next);
+ break;
+ case S5:
+ if (val3)
+ __set_bit(S0, next);
+ if (val11 && val13)
+ __set_bit(S1, next);
+ if (val11 && val14)
+ __set_bit(S4, next);
+ if (val5)
+ __set_bit(S5, next);
+ break;
+ case S6:
+ if (val11 && val13)
+ __set_bit(S1, next);
+ if (val13 && val3)
+ __set_bit(S2, next);
+ if (val14 && val3)
+ __set_bit(S3, next);
+ if (val11 && val14)
+ __set_bit(S4, next);
+ if (val13 && val5)
+ __set_bit(S6, next);
+ if (val14 && val5)
+ __set_bit(S7, next);
+ break;
+ case S7:
+ if (val3)
+ __set_bit(S0, next);
+ if (val11 && val13)
+ __set_bit(S1, next);
+ if (val11 && val14)
+ __set_bit(S4, next);
+ if (val5)
+ __set_bit(S5, next);
+ break;
+ }
+}
generated by cgit (git 2.34.1) at 2025-08-01 10:33:48 +0000