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-rw-r--r--kernel/sched/cpupri.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/kernel/sched/cpupri.h b/kernel/sched/cpupri.h
new file mode 100644
index 000000000..d6cba0020
--- /dev/null
+++ b/kernel/sched/cpupri.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#define CPUPRI_NR_PRIORITIES (MAX_RT_PRIO+1)
+
+#define CPUPRI_INVALID -1
+#define CPUPRI_NORMAL 0
+/* values 1-99 are for RT1-RT99 priorities */
+#define CPUPRI_HIGHER 100
+
+struct cpupri_vec {
+ atomic_t count;
+ cpumask_var_t mask;
+};
+
+struct cpupri {
+ struct cpupri_vec pri_to_cpu[CPUPRI_NR_PRIORITIES];
+ int *cpu_to_pri;
+};
+
+#ifdef CONFIG_SMP
+int cpupri_find(struct cpupri *cp, struct task_struct *p,
+ struct cpumask *lowest_mask);
+int cpupri_find_fitness(struct cpupri *cp, struct task_struct *p,
+ struct cpumask *lowest_mask,
+ bool (*fitness_fn)(struct task_struct *p, int cpu));
+void cpupri_set(struct cpupri *cp, int cpu, int pri);
+int cpupri_init(struct cpupri *cp);
+void cpupri_cleanup(struct cpupri *cp);
+#endif