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m68k: drop _PAGE_FILE and pte_file()-related helpers

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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: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Kirill A. Shutemov
2015-02-10 14:10:41 -08:00
committed by Linus Torvalds
parent 406b16e26d
commit 1eeda0abf4
4 changed files with 2 additions and 53 deletions
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15
arch/m68k/include/asm/sun3_pgtable.h
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@@ -38,8 +38,6 @@
#define _PAGE_PRESENT (SUN3_PAGE_VALID)
#define _PAGE_ACCESSED (SUN3_PAGE_ACCESSED)
#define PTE_FILE_MAX_BITS 28
/* Compound page protection values. */
//todo: work out which ones *should* have SUN3_PAGE_NOCACHE and fix...
// is it just PAGE_KERNEL and PAGE_SHARED?
@@ -168,7 +166,6 @@ static inline void pgd_clear (pgd_t *pgdp) {}
static inline int pte_write(pte_t pte) { return pte_val(pte) & SUN3_PAGE_WRITEABLE; }
static inline int pte_dirty(pte_t pte) { return pte_val(pte) & SUN3_PAGE_MODIFIED; }
static inline int pte_young(pte_t pte) { return pte_val(pte) & SUN3_PAGE_ACCESSED; }
static inline int pte_file(pte_t pte) { return pte_val(pte) & SUN3_PAGE_ACCESSED; }
static inline int pte_special(pte_t pte) { return 0; }
static inline pte_t pte_wrprotect(pte_t pte) { pte_val(pte) &= ~SUN3_PAGE_WRITEABLE; return pte; }
@@ -202,18 +199,6 @@ static inline pmd_t *pmd_offset (pgd_t *pgd, unsigned long address)
return (pmd_t *) pgd;
}
static inline unsigned long pte_to_pgoff(pte_t pte)
{
return pte.pte & SUN3_PAGE_PGNUM_MASK;
}
static inline pte_t pgoff_to_pte(unsigned off)
{
pte_t pte = { off + SUN3_PAGE_ACCESSED };
return pte;
}
/* Find an entry in the third-level pagetable. */
#define pte_index(address) ((address >> PAGE_SHIFT) & (PTRS_PER_PTE-1))
#define pte_offset_kernel(pmd, address) ((pte_t *) __pmd_page(*pmd) + pte_index(address))