--- zzzz-none-000/linux-3.10.107/arch/mips/include/asm/smp-ops.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/mips/include/asm/smp-ops.h	2021-02-04 17:41:59.000000000 +0000
@@ -13,6 +13,8 @@
 
 #include <linux/errno.h>
 
+#include <asm/mips-cm.h>
+
 #ifdef CONFIG_SMP
 
 #include <linux/cpumask.h>
@@ -24,7 +26,6 @@
 	void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action);
 	void (*init_secondary)(void);
 	void (*smp_finish)(void);
-	void (*cpus_done)(void);
 	void (*boot_secondary)(int cpu, struct task_struct *idle);
 	void (*smp_setup)(void);
 	void (*prepare_cpus)(unsigned int max_cpus);
@@ -43,6 +44,9 @@
 	mp_ops->smp_setup();
 }
 
+extern void gic_send_ipi_single(int cpu, unsigned int action);
+extern void gic_send_ipi_mask(const struct cpumask *mask, unsigned int action);
+
 #else /* !CONFIG_SMP */
 
 struct plat_smp_ops;
@@ -76,6 +80,9 @@
 #ifdef CONFIG_MIPS_CMP
 	extern struct plat_smp_ops cmp_smp_ops;
 
+	if (!mips_cm_present())
+		return -ENODEV;
+
 	register_smp_ops(&cmp_smp_ops);
 
 	return 0;
@@ -97,4 +104,13 @@
 #endif
 }
 
+#ifdef CONFIG_MIPS_CPS
+extern int register_cps_smp_ops(void);
+#else
+static inline int register_cps_smp_ops(void)
+{
+	return -ENODEV;
+}
+#endif
+
 #endif /* __ASM_SMP_OPS_H */