--- zzzz-none-000/linux-5.4.213/arch/arm/mm/proc-syms.c	2022-09-15 10:04:56.000000000 +0000
+++ alder-5690pro-762/linux-5.4.213/arch/arm/mm/proc-syms.c	2024-08-14 09:01:28.000000000 +0000
@@ -27,6 +27,12 @@
 EXPORT_SYMBOL(__cpuc_flush_user_range);
 EXPORT_SYMBOL(__cpuc_coherent_kern_range);
 EXPORT_SYMBOL(__cpuc_flush_dcache_area);
+EXPORT_SYMBOL(dmac_inv_range);
+EXPORT_SYMBOL(dmac_inv_range_no_dsb);
+EXPORT_SYMBOL(dmac_clean_range);
+EXPORT_SYMBOL(dmac_clean_range_no_dsb);
+EXPORT_SYMBOL(dmac_flush_range);
+EXPORT_SYMBOL(dmac_flush_range_no_dsb);
 #else
 EXPORT_SYMBOL(cpu_cache);
 #endif