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| author |   Adam Litke <agl@us.ibm.com> | 2005-09-03 15:54:59 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@evo.osdl.org> | 2005-09-05 00:05:46 -0700 |
| commit | 32e51a8c976fc72c3e9bcece9767d9908816bf8e (patch) | |
| tree | 480c62a4839b6c9553689da76f49fc208c6ac7f5 /include | |
| parent | [PATCH] arm: allow for arch-specific IOREMAP_MAX_ORDER (diff) | |
| download | linux-dev-32e51a8c976fc72c3e9bcece9767d9908816bf8e.tar.xz linux-dev-32e51a8c976fc72c3e9bcece9767d9908816bf8e.zip | |
[PATCH] hugetlb: add pte_huge() macro
This patch adds a macro pte_huge(pte) for i386/x86_64 which is needed by a
patch later in the series. Instead of repeating (_PAGE_PRESENT |
_PAGE_PSE), I've added __LARGE_PTE to i386 to match x86_64.
Signed-off-by: Adam Litke <agl@us.ibm.com>
Cc: <linux-mm@kvack.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-i386/pgtable.h | 4 | ||||
| -rw-r--r-- | include/asm-x86_64/pgtable.h | 3 |
2 files changed, 5 insertions, 2 deletions
diff --git a/include/asm-i386/pgtable.h b/include/asm-i386/pgtable.h index c797286b512f..f51fd2c956bb 100644 --- a/include/asm-i386/pgtable.h +++ b/include/asm-i386/pgtable.h @@ -215,11 +215,13 @@ extern unsigned long pg0[]; * The following only work if pte_present() is true. * Undefined behaviour if not.. */ +#define __LARGE_PTE (_PAGE_PSE | _PAGE_PRESENT) static inline int pte_user(pte_t pte) { return (pte).pte_low & _PAGE_USER; } static inline int pte_read(pte_t pte) { return (pte).pte_low & _PAGE_USER; } static inline int pte_dirty(pte_t pte) { return (pte).pte_low & _PAGE_DIRTY; } static inline int pte_young(pte_t pte) { return (pte).pte_low & _PAGE_ACCESSED; } static inline int pte_write(pte_t pte) { return (pte).pte_low & _PAGE_RW; } +static inline int pte_huge(pte_t pte) { return ((pte).pte_low & __LARGE_PTE) == __LARGE_PTE; } /* * The following only works if pte_present() is not true. @@ -236,7 +238,7 @@ static inline pte_t pte_mkexec(pte_t pte) { (pte).pte_low |= _PAGE_USER; return static inline pte_t pte_mkdirty(pte_t pte) { (pte).pte_low |= _PAGE_DIRTY; return pte; } static inline pte_t pte_mkyoung(pte_t pte) { (pte).pte_low |= _PAGE_ACCESSED; return pte; } static inline pte_t pte_mkwrite(pte_t pte) { (pte).pte_low |= _PAGE_RW; return pte; } -static inline pte_t pte_mkhuge(pte_t pte) { (pte).pte_low |= _PAGE_PRESENT | _PAGE_PSE; return pte; } +static inline pte_t pte_mkhuge(pte_t pte) { (pte).pte_low |= __LARGE_PTE; return pte; } #ifdef CONFIG_X86_PAE # include <asm/pgtable-3level.h> diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h index 20476d129893..a1ada852f00e 100644 --- a/include/asm-x86_64/pgtable.h +++ b/include/asm-x86_64/pgtable.h @@ -247,6 +247,7 @@ static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot) * The following only work if pte_present() is true. * Undefined behaviour if not.. */ +#define __LARGE_PTE (_PAGE_PSE|_PAGE_PRESENT) static inline int pte_user(pte_t pte) { return pte_val(pte) & _PAGE_USER; } extern inline int pte_read(pte_t pte) { return pte_val(pte) & _PAGE_USER; } extern inline int pte_exec(pte_t pte) { return pte_val(pte) & _PAGE_USER; } @@ -254,8 +255,8 @@ extern inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_DIRTY; } extern inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; } extern inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_RW; } static inline int pte_file(pte_t pte) { return pte_val(pte) & _PAGE_FILE; } +static inline int pte_huge(pte_t pte) { return (pte_val(pte) & __LARGE_PTE) == __LARGE_PTE; } -#define __LARGE_PTE (_PAGE_PSE|_PAGE_PRESENT) extern inline pte_t pte_rdprotect(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_USER)); return pte; } extern inline pte_t pte_exprotect(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_USER)); return pte; } extern inline pte_t pte_mkclean(pte_t pte) { set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_DIRTY)); return pte; } |