--- zzzz-none-000/linux-4.19.183/include/linux/mm.h	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/include/linux/mm.h	2023-06-28 08:54:20.000000000 +0000
@@ -37,6 +37,11 @@
 
 void init_mm_internals(void);
 
+#if defined(CONFIG_AVM_PAGE_TRACE)
+unsigned long avm_get_page_current_pc(struct page *page);
+void avm_set_page_current_pc(struct page *page, unsigned long pc);
+#endif/*--- #if defined(CONFIG_AVM_PAGE_TRACE)  ---*/
+
 #ifndef CONFIG_NEED_MULTIPLE_NODES	/* Don't use mapnrs, do it properly */
 extern unsigned long max_mapnr;
 
@@ -671,7 +676,11 @@
 
 void put_pages_list(struct list_head *pages);
 
-void split_page(struct page *page, unsigned int order);
+void split_page(struct page *page, unsigned int order
+#if defined(CONFIG_AVM_PAGE_TRACE)
+		, unsigned long pc
+#endif
+		);
 
 /*
  * Compound pages have a destructor function.  Provide a
@@ -2394,7 +2403,11 @@
 void task_dirty_inc(struct task_struct *tsk);
 
 /* readahead.c */
+#if defined(CONFIG_AVM_KERNEL)
+#define VM_MAX_READAHEAD	1024	/* kbytes */
+#else
 #define VM_MAX_READAHEAD	128	/* kbytes */
+#endif
 #define VM_MIN_READAHEAD	16	/* kbytes (includes current page) */
 
 int force_page_cache_readahead(struct address_space *mapping, struct file *filp,
@@ -2833,5 +2846,11 @@
 static inline void setup_nr_node_ids(void) {}
 #endif
 
+#ifdef CONFIG_MTD_AVM_MTDRAM
+int __init avm_mtdram_mem_reserve(void);
+#else
+static inline int avm_mtdram_mem_reserve(void) { return 0; }
+#endif
+
 #endif /* __KERNEL__ */
 #endif /* _LINUX_MM_H */