[PATCH 3.16 076/131] microblaze: drop _PAGE_FILE and pte_file()-related helpers

From: Ben Hutchings
Date: Sat Sep 29 2018 - 17:55:38 EST


3.16.59-rc1 review patch. If anyone has any objections, please let me know.

------------------

From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>

commit 937fa39fb22fea1c1d8ca9e5f31c452b91ac7239 upstream.

We've replaced remap_file_pages(2) implementation with emulation. Nobody
creates non-linear mapping anymore.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Michal Simek <monstr@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
arch/microblaze/include/asm/pgtable.h | 11 -----------
1 file changed, 11 deletions(-)

--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -40,10 +40,6 @@ extern int mem_init_done;
#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)
@@ -207,7 +203,6 @@ static inline pte_t pte_mkspecial(pte_t

/* 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 */
@@ -337,7 +332,6 @@ static inline int pte_write(pte_t pte) {
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; }
@@ -499,11 +493,6 @@ static inline pmd_t *pmd_offset(pgd_t *d

#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];

/*