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authorJeremy Fitzhardinge <jeremy@goop.org>2009-02-05 20:31:16 +0100
committerJeremy Fitzhardinge <jeremy@goop.org>2009-02-06 21:31:51 +0100
commit18a7a199f97a7509fb987722e543f1aac3d7ada5 (patch)
tree7b4d733899a124f543072932a023261383c634db /arch/x86/include/asm/page.h
parentx86: unify io_remap_pfn_range (diff)
downloadlinux-18a7a199f97a7509fb987722e543f1aac3d7ada5.tar.xz
linux-18a7a199f97a7509fb987722e543f1aac3d7ada5.zip
x86: add and use pgd/pud/pmd_flags
Add pgd/pud/pmd_flags which are analogous to pte_flags, and use them where-ever we only care about testing the flags portions of the respective entries. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Diffstat (limited to 'arch/x86/include/asm/page.h')
-rw-r--r--arch/x86/include/asm/page.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h
index e9873a2e8695..0b16b64a8fe7 100644
--- a/arch/x86/include/asm/page.h
+++ b/arch/x86/include/asm/page.h
@@ -95,6 +95,11 @@ static inline pgdval_t native_pgd_val(pgd_t pgd)
return pgd.pgd;
}
+static inline pgdval_t pgd_flags(pgd_t pgd)
+{
+ return native_pgd_val(pgd) & PTE_FLAGS_MASK;
+}
+
#if PAGETABLE_LEVELS >= 3
#if PAGETABLE_LEVELS == 4
typedef struct { pudval_t pud; } pud_t;
@@ -117,6 +122,11 @@ static inline pudval_t native_pud_val(pud_t pud)
}
#endif /* PAGETABLE_LEVELS == 4 */
+static inline pudval_t pud_flags(pud_t pud)
+{
+ return native_pud_val(pud) & PTE_FLAGS_MASK;
+}
+
typedef struct { pmdval_t pmd; } pmd_t;
static inline pmd_t native_make_pmd(pmdval_t val)
@@ -128,6 +138,11 @@ static inline pmdval_t native_pmd_val(pmd_t pmd)
{
return pmd.pmd;
}
+
+static inline pmdval_t pmd_flags(pmd_t pmd)
+{
+ return native_pmd_val(pmd) & PTE_FLAGS_MASK;
+}
#else /* PAGETABLE_LEVELS == 2 */
#include <asm-generic/pgtable-nopmd.h>