--- zzzz-none-000/linux-4.19.183/arch/arm/include/asm/outercache.h	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/arch/arm/include/asm/outercache.h	2023-06-28 08:54:18.000000000 +0000
@@ -39,6 +39,13 @@
 	/* This is an ARM L2C thing */
 	void (*write_sec)(unsigned long, unsigned);
 	void (*configure)(const struct l2x0_regs *);
+#if defined(CONFIG_BCM_KF_L2CACHE_OPTIMIZATION)
+	unsigned long (*spin_lock_irqsave)(void);
+	void (*spin_unlock_irqrestore)(unsigned long flags);
+	void (*sync_no_lock)(void);
+	void (*flush_line_no_lock)(unsigned long);
+	void (*inv_line_no_lock)(unsigned long);
+#endif
 };
 
 extern struct outer_cache_fns outer_cache;
@@ -114,6 +121,32 @@
 	if (outer_cache.resume)
 		outer_cache.resume();
 }
+#if defined(CONFIG_BCM_KF_L2CACHE_OPTIMIZATION)
+static inline unsigned long outer_spin_lock_irqsave(void)
+{
+	return outer_cache.spin_lock_irqsave();
+}
+
+static inline void outer_spin_unlock_irqrestore(unsigned long flags)
+{
+	outer_cache.spin_unlock_irqrestore(flags);
+}
+
+static inline void outer_sync_no_lock(void)
+{
+	outer_cache.sync_no_lock();
+}
+
+static inline void outer_flush_line_no_lock(phys_addr_t addr)
+{
+	outer_cache.flush_line_no_lock(addr);
+}
+
+static inline void outer_inv_line_no_lock(phys_addr_t addr)
+{
+	outer_cache.inv_line_no_lock(addr);
+}
+#endif
 
 #else