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mips: 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: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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4 changed files with 0 additions and 56 deletions
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@ -161,22 +161,6 @@ pfn_pte(unsigned long pfn, pgprot_t prot)
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#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
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#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
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/*
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* Encode and decode a nonlinear file mapping entry
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*/
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#define pte_to_pgoff(_pte) ((((_pte).pte >> 1 ) & 0x07) | \
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(((_pte).pte >> 2 ) & 0x38) | \
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(((_pte).pte >> 10) << 6 ))
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#define pgoff_to_pte(off) ((pte_t) { (((off) & 0x07) << 1 ) | \
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(((off) & 0x38) << 2 ) | \
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(((off) >> 6 ) << 10) | \
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_PAGE_FILE })
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/*
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* Bits 0, 4, 8, and 9 are taken, split up 28 bits of offset into this range:
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*/
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#define PTE_FILE_MAX_BITS 28
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#else
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#if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32)
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@ -188,13 +172,6 @@ pfn_pte(unsigned long pfn, pgprot_t prot)
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#define __pte_to_swp_entry(pte) ((swp_entry_t) { (pte).pte_high })
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#define __swp_entry_to_pte(x) ((pte_t) { 0, (x).val })
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/*
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* Bits 0 and 1 of pte_high are taken, use the rest for the page offset...
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*/
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#define pte_to_pgoff(_pte) ((_pte).pte_high >> 2)
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#define pgoff_to_pte(off) ((pte_t) { _PAGE_FILE, (off) << 2 })
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#define PTE_FILE_MAX_BITS 30
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#else
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/*
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* Constraints:
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@ -209,19 +186,6 @@ pfn_pte(unsigned long pfn, pgprot_t prot)
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#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
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#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
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/*
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* Encode and decode a nonlinear file mapping entry
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*/
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#define pte_to_pgoff(_pte) ((((_pte).pte >> 1) & 0x7) | \
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(((_pte).pte >> 2) & 0x8) | \
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(((_pte).pte >> 8) << 4))
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#define pgoff_to_pte(off) ((pte_t) { (((off) & 0x7) << 1) | \
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(((off) & 0x8) << 2) | \
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(((off) >> 4) << 8) | \
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_PAGE_FILE })
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#define PTE_FILE_MAX_BITS 28
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#endif /* defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32) */
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#endif /* defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX) */
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@ -291,13 +291,4 @@ static inline pte_t mk_swap_pte(unsigned long type, unsigned long offset)
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#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
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#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
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/*
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* Bits 0, 4, 6, and 7 are taken. Let's leave bits 1, 2, 3, and 5 alone to
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* make things easier, and only use the upper 56 bits for the page offset...
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*/
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#define PTE_FILE_MAX_BITS 56
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#define pte_to_pgoff(_pte) ((_pte).pte >> 8)
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#define pgoff_to_pte(off) ((pte_t) { ((off) << 8) | _PAGE_FILE })
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#endif /* _ASM_PGTABLE_64_H */
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@ -48,8 +48,6 @@
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/*
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* The following bits are implemented in software
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*
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* _PAGE_FILE semantics: set:pagecache unset:swap
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*/
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#define _PAGE_PRESENT_SHIFT (_CACHE_SHIFT + 3)
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#define _PAGE_PRESENT (1 << _PAGE_PRESENT_SHIFT)
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@ -64,7 +62,6 @@
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#define _PAGE_SILENT_READ _PAGE_VALID
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#define _PAGE_SILENT_WRITE _PAGE_DIRTY
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#define _PAGE_FILE _PAGE_MODIFIED
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#define _PFN_SHIFT (PAGE_SHIFT - 12 + _CACHE_SHIFT + 3)
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@ -72,8 +69,6 @@
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/*
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* The following are implemented by software
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*
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* _PAGE_FILE semantics: set:pagecache unset:swap
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*/
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#define _PAGE_PRESENT_SHIFT 0
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#define _PAGE_PRESENT (1 << _PAGE_PRESENT_SHIFT)
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@ -85,8 +80,6 @@
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#define _PAGE_ACCESSED (1 << _PAGE_ACCESSED_SHIFT)
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#define _PAGE_MODIFIED_SHIFT 4
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#define _PAGE_MODIFIED (1 << _PAGE_MODIFIED_SHIFT)
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#define _PAGE_FILE_SHIFT 4
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#define _PAGE_FILE (1 << _PAGE_FILE_SHIFT)
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/*
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* And these are the hardware TLB bits
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@ -116,7 +109,6 @@
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* The following bits are implemented in software
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*
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* _PAGE_READ / _PAGE_READ_SHIFT should be unused if cpu_has_rixi.
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* _PAGE_FILE semantics: set:pagecache unset:swap
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*/
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#define _PAGE_PRESENT_SHIFT (0)
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#define _PAGE_PRESENT (1 << _PAGE_PRESENT_SHIFT)
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@ -128,7 +120,6 @@
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#define _PAGE_ACCESSED (1 << _PAGE_ACCESSED_SHIFT)
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#define _PAGE_MODIFIED_SHIFT (_PAGE_ACCESSED_SHIFT + 1)
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#define _PAGE_MODIFIED (1 << _PAGE_MODIFIED_SHIFT)
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#define _PAGE_FILE (_PAGE_MODIFIED)
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#ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
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/* huge tlb page */
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@ -231,7 +231,6 @@ extern pgd_t swapper_pg_dir[];
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static inline int pte_write(pte_t pte) { return pte.pte_low & _PAGE_WRITE; }
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static inline int pte_dirty(pte_t pte) { return pte.pte_low & _PAGE_MODIFIED; }
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static inline int pte_young(pte_t pte) { return pte.pte_low & _PAGE_ACCESSED; }
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static inline int pte_file(pte_t pte) { return pte.pte_low & _PAGE_FILE; }
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static inline pte_t pte_wrprotect(pte_t pte)
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{
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@ -287,7 +286,6 @@ static inline pte_t pte_mkyoung(pte_t pte)
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static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_WRITE; }
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static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_MODIFIED; }
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static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; }
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static inline int pte_file(pte_t pte) { return pte_val(pte) & _PAGE_FILE; }
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static inline pte_t pte_wrprotect(pte_t pte)
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{
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