1 files changed, 24 insertions, 0 deletions
diff --git a/kernel/sched/cpudeadline.h b/kernel/sched/cpudeadline.h
new file mode 100644
index 000000000000..d7699468eedd
--- /dev/null
+++ b/kernel/sched/cpudeadline.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/types.h>
+#include <linux/spinlock.h>
+
+#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;
+};
+
+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, bool online);
+int  cpudl_init(struct cpudl *cp);
+void cpudl_cleanup(struct cpudl *cp);