--- zzzz-none-000/linux-3.10.107/arch/arm64/include/asm/page.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/arm64/include/asm/page.h	2021-02-04 17:41:59.000000000 +0000
@@ -20,24 +20,26 @@
 #define __ASM_PAGE_H
 
 /* PAGE_SHIFT determines the page size */
+/* CONT_SHIFT determines the number of pages which can be tracked together  */
 #ifdef CONFIG_ARM64_64K_PAGES
 #define PAGE_SHIFT		16
+#define CONT_SHIFT		5
+#elif defined(CONFIG_ARM64_16K_PAGES)
+#define PAGE_SHIFT		14
+#define CONT_SHIFT		7
 #else
 #define PAGE_SHIFT		12
+#define CONT_SHIFT		4
 #endif
-#define PAGE_SIZE		(_AC(1,UL) << PAGE_SHIFT)
+#define PAGE_SIZE		(_AC(1, UL) << PAGE_SHIFT)
 #define PAGE_MASK		(~(PAGE_SIZE-1))
 
-/* We do define AT_SYSINFO_EHDR but don't use the gate mechanism */
-#define __HAVE_ARCH_GATE_AREA		1
+#define CONT_SIZE		(_AC(1, UL) << (CONT_SHIFT + PAGE_SHIFT))
+#define CONT_MASK		(~(CONT_SIZE-1))
 
 #ifndef __ASSEMBLY__
 
-#ifdef CONFIG_ARM64_64K_PAGES
-#include <asm/pgtable-2level-types.h>
-#else
-#include <asm/pgtable-3level-types.h>
-#endif
+#include <asm/pgtable-types.h>
 
 extern void __cpu_clear_user_page(void *p, unsigned long user);
 extern void __cpu_copy_user_page(void *to, const void *from,