--- zzzz-none-000/linux-3.10.107/arch/microblaze/include/asm/pgtable.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/microblaze/include/asm/pgtable.h	2021-02-04 17:41:59.000000000 +0000
@@ -13,9 +13,6 @@
 
 #include <asm/setup.h>
 
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot)		\
-		remap_pfn_range(vma, vaddr, pfn, size, prot)
-
 #ifndef __ASSEMBLY__
 extern int mem_init_done;
 #endif
@@ -43,10 +40,6 @@
 #define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
 #define __swp_entry_to_pte(x)	((pte_t) { (x).val })
 
-#ifndef __ASSEMBLY__
-static inline int pte_file(pte_t pte) { return 0; }
-#endif /* __ASSEMBLY__ */
-
 #define ZERO_PAGE(vaddr)	({ BUG(); NULL; })
 
 #define swapper_pg_dir ((pgd_t *) NULL)
@@ -68,6 +61,8 @@
 
 #include <asm-generic/4level-fixup.h>
 
+#define __PAGETABLE_PMD_FOLDED
+
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
 
@@ -77,7 +72,7 @@
 #include <asm/mmu.h>
 #include <asm/page.h>
 
-#define FIRST_USER_ADDRESS	0
+#define FIRST_USER_ADDRESS	0UL
 
 extern unsigned long va_to_phys(unsigned long address);
 extern pte_t *va_to_pte(unsigned long address);
@@ -210,7 +205,6 @@
 
 /* Definitions for MicroBlaze. */
 #define	_PAGE_GUARDED	0x001	/* G: page is guarded from prefetch */
-#define _PAGE_FILE	0x001	/* when !present: nonlinear file mapping */
 #define _PAGE_PRESENT	0x002	/* software: PTE contains a translation */
 #define	_PAGE_NO_CACHE	0x004	/* I: caching is inhibited */
 #define	_PAGE_WRITETHRU	0x008	/* W: caching is write-through */
@@ -340,7 +334,6 @@
 static inline int pte_exec(pte_t pte)  { return pte_val(pte) & _PAGE_EXEC; }
 static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; }
 static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }
-static inline int pte_file(pte_t pte)  { return pte_val(pte) & _PAGE_FILE; }
 
 static inline void pte_uncache(pte_t pte) { pte_val(pte) |= _PAGE_NO_CACHE; }
 static inline void pte_cache(pte_t pte)   { pte_val(pte) &= ~_PAGE_NO_CACHE; }
@@ -502,11 +495,6 @@
 
 #define pte_unmap(pte)		kunmap_atomic(pte)
 
-/* Encode and decode a nonlinear file mapping entry */
-#define PTE_FILE_MAX_BITS	29
-#define pte_to_pgoff(pte)	(pte_val(pte) >> 3)
-#define pgoff_to_pte(off)	((pte_t) { ((off) << 3) | _PAGE_FILE })
-
 extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
 
 /*
@@ -568,6 +556,7 @@
 void consistent_sync(void *vaddr, size_t size, int direction);
 void consistent_sync_page(struct page *page, unsigned long offset,
 	size_t size, int direction);
+unsigned long consistent_virt_to_pfn(void *vaddr);
 
 void setup_memory(void);
 #endif /* __ASSEMBLY__ */