--- /dev/null
+#ifndef __LINUX_CPUMASK_H
+#define __LINUX_CPUMASK_H
+
+#define num_online_cpus() 1U
+#define num_possible_cpus() 1U
+#define num_present_cpus() 1U
+#define num_active_cpus() 1U
+#define cpu_online(cpu) ((cpu) == 0)
+#define cpu_possible(cpu) ((cpu) == 0)
+#define cpu_present(cpu) ((cpu) == 0)
+#define cpu_active(cpu) ((cpu) == 0)
+
+#define raw_smp_processor_id() 0U
+
+#define for_each_cpu(cpu, mask) \
+ for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
+#define for_each_cpu_not(cpu, mask) \
+ for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
+#define for_each_cpu_and(cpu, mask, and) \
+ for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask, (void)and)
+
+#define for_each_possible_cpu(cpu) for_each_cpu((cpu), 1)
+#define for_each_online_cpu(cpu) for_each_cpu((cpu), 1)
+#define for_each_present_cpu(cpu) for_each_cpu((cpu), 1)
+
+#endif /* __LINUX_CPUMASK_H */