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-rw-r--r--kernel/sched/cpudeadline.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/kernel/sched/cpudeadline.h b/kernel/sched/cpudeadline.h
new file mode 100644
index 0000000000..0adeda93b5
--- /dev/null
+++ b/kernel/sched/cpudeadline.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#define IDX_INVALID -1
+
+struct cpudl_item {
+ u64 dl;
+ int cpu;
+ int idx;
+};
+
+struct cpudl {
+ raw_spinlock_t lock;
+ int size;
+ cpumask_var_t free_cpus;
+ struct cpudl_item *elements;
+};
+
+#ifdef CONFIG_SMP
+int cpudl_find(struct cpudl *cp, struct task_struct *p, struct cpumask *later_mask);
+void cpudl_set(struct cpudl *cp, int cpu, u64 dl);
+void cpudl_clear(struct cpudl *cp, int cpu);
+int cpudl_init(struct cpudl *cp);
+void cpudl_set_freecpu(struct cpudl *cp, int cpu);
+void cpudl_clear_freecpu(struct cpudl *cp, int cpu);
+void cpudl_cleanup(struct cpudl *cp);
+#endif /* CONFIG_SMP */