diff options
Diffstat (limited to 'arch/blackfin/include/asm/pgtable.h')
| -rw-r--r-- | arch/blackfin/include/asm/pgtable.h | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/arch/blackfin/include/asm/pgtable.h b/arch/blackfin/include/asm/pgtable.h deleted file mode 100644 index c1ee3d6533fb..000000000000 --- a/arch/blackfin/include/asm/pgtable.h +++ /dev/null @@ -1,104 +0,0 @@ -/* - * Copyright 2004-2009 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - */ - -#ifndef _BLACKFIN_PGTABLE_H -#define _BLACKFIN_PGTABLE_H - -#include <asm-generic/4level-fixup.h> - -#include <asm/page.h> -#include <asm/def_LPBlackfin.h> - -typedef pte_t *pte_addr_t; -/* -* Trivial page table functions. -*/ -#define pgd_present(pgd) (1) -#define pgd_none(pgd) (0) -#define pgd_bad(pgd) (0) -#define pgd_clear(pgdp) -#define kern_addr_valid(addr) (1) - -#define pmd_offset(a, b) ((void *)0) -#define pmd_none(x) (!pmd_val(x)) -#define pmd_present(x) (pmd_val(x)) -#define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0) -#define pmd_bad(x) (pmd_val(x) & ~PAGE_MASK) - -#define kern_addr_valid(addr) (1) - -#define PAGE_NONE __pgprot(0) /* these mean nothing to NO_MM */ -#define PAGE_SHARED __pgprot(0) /* these mean nothing to NO_MM */ -#define PAGE_COPY __pgprot(0) /* these mean nothing to NO_MM */ -#define PAGE_READONLY __pgprot(0) /* these mean nothing to NO_MM */ -#define PAGE_KERNEL __pgprot(0) /* these mean nothing to NO_MM */ -#define pgprot_noncached(prot) (prot) - -extern void paging_init(void); - -#define __swp_type(x) (0) -#define __swp_offset(x) (0) -#define __swp_entry(typ,off) ((swp_entry_t) { ((typ) | ((off) << 7)) }) -#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) -#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) - -#define set_pte(pteptr, pteval) (*(pteptr) = pteval) -#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval) - -/* - * Page assess control based on Blackfin CPLB management - */ -#define _PAGE_RD (CPLB_USER_RD) -#define _PAGE_WR (CPLB_USER_WR) -#define _PAGE_USER (CPLB_USER_RD | CPLB_USER_WR) -#define _PAGE_ACCESSED CPLB_ALL_ACCESS -#define _PAGE_DIRTY (CPLB_DIRTY) - -#define PTE_BIT_FUNC(fn, op) \ - static inline pte_t pte_##fn(pte_t _pte) { _pte.pte op; return _pte; } - -PTE_BIT_FUNC(rdprotect, &= ~_PAGE_RD); -PTE_BIT_FUNC(mkread, |= _PAGE_RD); -PTE_BIT_FUNC(wrprotect, &= ~_PAGE_WR); -PTE_BIT_FUNC(mkwrite, |= _PAGE_WR); -PTE_BIT_FUNC(exprotect, &= ~_PAGE_USER); -PTE_BIT_FUNC(mkexec, |= _PAGE_USER); -PTE_BIT_FUNC(mkclean, &= ~_PAGE_DIRTY); -PTE_BIT_FUNC(mkdirty, |= _PAGE_DIRTY); -PTE_BIT_FUNC(mkold, &= ~_PAGE_ACCESSED); -PTE_BIT_FUNC(mkyoung, |= _PAGE_ACCESSED); - -/* - * ZERO_PAGE is a global shared page that is always zero: used - * for zero-mapped memory areas etc.. - */ -#define ZERO_PAGE(vaddr) virt_to_page(empty_zero_page) -extern char empty_zero_page[]; - -#define swapper_pg_dir ((pgd_t *) 0) -/* - * No page table caches to initialise. - */ -#define pgtable_cache_init() do { } while (0) - -/* - * All 32bit addresses are effectively valid for vmalloc... - * Sort of meaningless for non-VM targets. - */ -#define VMALLOC_START 0 -#define VMALLOC_END 0xffffffff - -/* provide a special get_unmapped_area for framebuffer mmaps of nommu */ -extern unsigned long get_fb_unmapped_area(struct file *filp, unsigned long, - unsigned long, unsigned long, - unsigned long); -#define HAVE_ARCH_FB_UNMAPPED_AREA - -#define pgprot_writecombine pgprot_noncached - -#include <asm-generic/pgtable.h> - -#endif /* _BLACKFIN_PGTABLE_H */ |