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nios2: drop _PAGE_FILE and pte_file()-related helpers
We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Ley Foon Tan <lftan@altera.com> Reviewed-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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2 changed files with 1 additions and 10 deletions
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@ -30,6 +30,5 @@
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#define _PAGE_PRESENT (1<<25) /* PTE contains a translation */
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#define _PAGE_ACCESSED (1<<26) /* page referenced */
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#define _PAGE_DIRTY (1<<27) /* dirty page */
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#define _PAGE_FILE (1<<28) /* PTE used for file mapping or swap */
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#endif /* _ASM_NIOS2_PGTABLE_BITS_H */
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@ -112,8 +112,6 @@ static inline int pte_dirty(pte_t pte) \
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{ return pte_val(pte) & _PAGE_DIRTY; }
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static inline int pte_young(pte_t pte) \
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{ return pte_val(pte) & _PAGE_ACCESSED; }
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static inline int pte_file(pte_t pte) \
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{ return pte_val(pte) & _PAGE_FILE; }
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static inline int pte_special(pte_t pte) { return 0; }
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#define pgprot_noncached pgprot_noncached
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@ -272,8 +270,7 @@ static inline void pte_clear(struct mm_struct *mm,
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__FILE__, __LINE__, pgd_val(e))
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/*
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* Encode and decode a swap entry (must be !pte_none(pte) && !pte_present(pte)
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* && !pte_file(pte)):
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* Encode and decode a swap entry (must be !pte_none(pte) && !pte_present(pte):
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*
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* 31 30 29 28 27 26 25 24 23 22 21 20 19 18 ... 1 0
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* 0 0 0 0 type. 0 0 0 0 0 0 offset.........
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@ -290,11 +287,6 @@ static inline void pte_clear(struct mm_struct *mm,
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#define __swp_entry_to_pte(swp) ((pte_t) { (swp).val })
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#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
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/* Encode and decode a nonlinear file mapping entry */
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#define PTE_FILE_MAX_BITS 25
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#define pte_to_pgoff(pte) (pte_val(pte) & 0x1ffffff)
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#define pgoff_to_pte(off) __pte(((off) & 0x1ffffff) | _PAGE_FILE)
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#define kern_addr_valid(addr) (1)
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#include <asm-generic/pgtable.h>
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