--- zzzz-none-000/linux-4.4.60/arch/arm64/mm/init.c	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-7490-727/linux-4.4.60/arch/arm64/mm/init.c	2021-02-04 17:41:59.000000000 +0000
@@ -381,3 +381,43 @@
 
 __setup("keepinitrd", keepinitrd_setup);
 #endif
+
+#ifdef CONFIG_QCA_MINIDUMP
+/* Get base address of PGD*/
+void get_pgd_info(uint64_t *pt_start, uint64_t *pt_len)
+{
+	*pt_start = (uintptr_t)swapper_pg_dir;
+	*pt_len = SZ_4K;
+}
+
+/* Get base address of PT and PMD.
+* pmd_offset() gives Page Middle Directory offset.
+* The value at this address corresponds to the base
+* address of the Page Table. pud_offset() gives
+* Page Upper Directory offset. The value at this address
+* corresponds to the base address of Page Middle Directory.
+*/
+
+int get_mmu_info(const void *vmalloc_addr,
+		unsigned long *pt_address, unsigned long *pmd_address)
+{
+	unsigned long addr = (unsigned long) vmalloc_addr;
+	struct page *page = NULL;
+	pgd_t *pgd = pgd_offset_k(addr);
+
+	if (!pgd_none(*pgd)) {
+		pud_t *pud = pud_offset(pgd, addr);
+		if (!pud_none(*pud)) {
+			pmd_t *pmd = pmd_offset(pud, addr);
+			if (!pmd_none(*pmd)) {
+				page = pmd_page(*(pmd));
+				*pmd_address = (unsigned long) pud_val(*pud) & (~(1024 - 1));
+				*pt_address = (unsigned long) pmd_val(*pmd) & (~(1024 - 1));
+				return 0;
+			}
+		}
+	}
+	return -1;
+}
+#endif
+