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avr32: 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: Haavard Skinnemoen <hskinnemoen@gmail.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
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 14:10:20 -08:00 committed by Linus Torvalds
parent b007ea798f
commit 7a7d2db4b8
1 changed files with 0 additions and 25 deletions
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25
arch/avr32/include/asm/pgtable.h
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@ -86,9 +86,6 @@ extern struct page *empty_zero_page;
#define _PAGE_BIT_PRESENT 10
#define _PAGE_BIT_ACCESSED 11 /* software: page was accessed */
/* The following flags are only valid when !PRESENT */
#define _PAGE_BIT_FILE 0 /* software: pagecache or swap? */
#define _PAGE_WT (1 << _PAGE_BIT_WT)
#define _PAGE_DIRTY (1 << _PAGE_BIT_DIRTY)
#define _PAGE_EXECUTE (1 << _PAGE_BIT_EXECUTE)
@ -101,7 +98,6 @@ extern struct page *empty_zero_page;
/* Software flags */
#define _PAGE_ACCESSED (1 << _PAGE_BIT_ACCESSED)
#define _PAGE_PRESENT (1 << _PAGE_BIT_PRESENT)
#define _PAGE_FILE (1 << _PAGE_BIT_FILE)
/*
* Page types, i.e. sizes. _PAGE_TYPE_NONE corresponds to what is
@ -210,14 +206,6 @@ static inline int pte_special(pte_t pte)
return 0;
}
/*
* The following only work if pte_present() is not true.
*/
static inline int pte_file(pte_t pte)
{
return pte_val(pte) & _PAGE_FILE;
}
/* Mutator functions for PTE bits */
static inline pte_t pte_wrprotect(pte_t pte)
{
@ -329,7 +317,6 @@ extern void update_mmu_cache(struct vm_area_struct * vma,
* Encode and decode a swap entry
*
* Constraints:
* _PAGE_FILE at bit 0
* _PAGE_TYPE_* at bits 2-3 (for emulating _PAGE_PROTNONE)
* _PAGE_PRESENT at bit 10
*
@ -346,18 +333,6 @@ extern void update_mmu_cache(struct vm_area_struct * vma,
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) })
#define __swp_entry_to_pte(x) ((pte_t) { (x).val })
/*
* Encode and decode a nonlinear file mapping entry. We have to
* preserve _PAGE_FILE and _PAGE_PRESENT here. _PAGE_TYPE_* isn't
* necessary, since _PAGE_FILE implies !_PAGE_PROTNONE (?)
*/
#define PTE_FILE_MAX_BITS 30
#define pte_to_pgoff(pte) (((pte_val(pte) >> 1) & 0x1ff) \
| ((pte_val(pte) >> 11) << 9))
#define pgoff_to_pte(off) ((pte_t) { ((((off) & 0x1ff) << 1) \
| (((off) >> 9) << 11) \
| _PAGE_FILE) })
typedef pte_t *pte_addr_t;
#define kern_addr_valid(addr) (1)