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authorArnd Bergmann <arnd@arndb.de>2012-01-07 16:30:20 +0400
committerArnd Bergmann <arnd@arndb.de>2012-01-07 16:42:17 +0400
commit237c78beb8a988453bac1993d21f025d070a0d8d (patch)
tree9864f0924650770881141359a2d5bac623949789 /arch/arm/include/asm/pgtable-2level.h
parent4eb821999086417ab42a15174b51497122fc406e (diff)
parent7b9dd47136c07ffd883aff6926c7b281e4c1eea4 (diff)
downloadlinux-237c78beb8a988453bac1993d21f025d070a0d8d.tar.xz
Merge branch 'depends/rmk/for-linus' into samsung/dt
Conflicts: arch/arm/mach-exynos/Makefile arch/arm/mach-exynos/cpu.c -> common.c arch/arm/mach-exynos/include/mach/entry-macro.S arch/arm/mach-exynos/init.c -> common.c arch/arm/mach-s5p64x0/init.c -> common.c arch/arm/mach-s5pv210/init.c -> common.c Multiple files were moved into common.c files in the rmk/for-linus branch, so this moves over the samsung/dt changes to the new files. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/include/asm/pgtable-2level.h')
-rw-r--r--arch/arm/include/asm/pgtable-2level.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h
index 470457e1cfc5..2317a71c8f8e 100644
--- a/arch/arm/include/asm/pgtable-2level.h
+++ b/arch/arm/include/asm/pgtable-2level.h
@@ -140,4 +140,45 @@
#define L_PTE_MT_DEV_CACHED (_AT(pteval_t, 0x0b) << 2) /* 1011 */
#define L_PTE_MT_MASK (_AT(pteval_t, 0x0f) << 2)
+#ifndef __ASSEMBLY__
+
+/*
+ * The "pud_xxx()" functions here are trivial when the pmd is folded into
+ * the pud: the pud entry is never bad, always exists, and can't be set or
+ * cleared.
+ */
+#define pud_none(pud) (0)
+#define pud_bad(pud) (0)
+#define pud_present(pud) (1)
+#define pud_clear(pudp) do { } while (0)
+#define set_pud(pud,pudp) do { } while (0)
+
+static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
+{
+ return (pmd_t *)pud;
+}
+
+#define pmd_bad(pmd) (pmd_val(pmd) & 2)
+
+#define copy_pmd(pmdpd,pmdps) \
+ do { \
+ pmdpd[0] = pmdps[0]; \
+ pmdpd[1] = pmdps[1]; \
+ flush_pmd_entry(pmdpd); \
+ } while (0)
+
+#define pmd_clear(pmdp) \
+ do { \
+ pmdp[0] = __pmd(0); \
+ pmdp[1] = __pmd(0); \
+ clean_pmd_entry(pmdp); \
+ } while (0)
+
+/* we don't need complex calculations here as the pmd is folded into the pgd */
+#define pmd_addr_end(addr,end) (end)
+
+#define set_pte_ext(ptep,pte,ext) cpu_set_pte_ext(ptep,pte,ext)
+
+#endif /* __ASSEMBLY__ */
+
#endif /* _ASM_PGTABLE_2LEVEL_H */