diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-m68k/sun3_pgtable.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/asm-m68k/sun3_pgtable.h b/include/asm-m68k/sun3_pgtable.h index b4f70615613e..aab83f5e9ab5 100644 --- a/include/asm-m68k/sun3_pgtable.h +++ b/include/asm-m68k/sun3_pgtable.h @@ -38,6 +38,8 @@ #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? @@ -160,6 +162,7 @@ extern inline int pte_write(pte_t pte) { return pte_val(pte) & SUN3_PAGE_WRITEA extern inline int pte_exec(pte_t pte) { return 1; } extern inline int pte_dirty(pte_t pte) { return pte_val(pte) & SUN3_PAGE_MODIFIED; } extern inline int pte_young(pte_t pte) { return pte_val(pte) & SUN3_PAGE_ACCESSED; } +extern inline int pte_file(pte_t pte) { return pte_val(pte) & SUN3_PAGE_ACCESSED; } extern inline pte_t pte_wrprotect(pte_t pte) { pte_val(pte) &= ~SUN3_PAGE_WRITEABLE; return pte; } extern inline pte_t pte_rdprotect(pte_t pte) { return pte; } @@ -195,6 +198,18 @@ extern 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(inline 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)) |