diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2012-01-09 16:14:07 +0000 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-01-09 16:14:07 +0000 |
| commit | 142f2101a86ade2d6c9dfbedf82e1b5b31c8fce6 (patch) | |
| tree | 8cced517382b7087df4e89a9e2a00ccac9676a92 /arch/arm/include/asm/pgalloc.h | |
| parent | 155bc27fdfbdf65a07a4f8ef3eafa25e57d8b511 (diff) | |
| parent | a07613a54d700a974f3a4a657da78ef5d097315d (diff) | |
Merge branch 'samsung/cleanup' into samsung/driver
Conflicts:
arch/arm/mach-s5p64x0/cpu.c -> common.c
More changes to a file that got moved into common.c,
see previous conflict resolutions.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/include/asm/pgalloc.h')
| -rw-r--r-- | arch/arm/include/asm/pgalloc.h | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h index 3e08fd3fbb6b..943504f53f57 100644 --- a/arch/arm/include/asm/pgalloc.h +++ b/arch/arm/include/asm/pgalloc.h @@ -25,12 +25,34 @@ #define _PAGE_USER_TABLE (PMD_TYPE_TABLE | PMD_BIT4 | PMD_DOMAIN(DOMAIN_USER)) #define _PAGE_KERNEL_TABLE (PMD_TYPE_TABLE | PMD_BIT4 | PMD_DOMAIN(DOMAIN_KERNEL)) +#ifdef CONFIG_ARM_LPAE + +static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) +{ + return (pmd_t *)get_zeroed_page(GFP_KERNEL | __GFP_REPEAT); +} + +static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) +{ + BUG_ON((unsigned long)pmd & (PAGE_SIZE-1)); + free_page((unsigned long)pmd); +} + +static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) +{ + set_pud(pud, __pud(__pa(pmd) | PMD_TYPE_TABLE)); +} + +#else /* !CONFIG_ARM_LPAE */ + /* * Since we have only two-level page tables, these are trivial */ #define pmd_alloc_one(mm,addr) ({ BUG(); ((pmd_t *)2); }) #define pmd_free(mm, pmd) do { } while (0) -#define pgd_populate(mm,pmd,pte) BUG() +#define pud_populate(mm,pmd,pte) BUG() + +#endif /* CONFIG_ARM_LPAE */ extern pgd_t *pgd_alloc(struct mm_struct *mm); extern void pgd_free(struct mm_struct *mm, pgd_t *pgd); @@ -109,7 +131,9 @@ static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t pte, { pmdval_t pmdval = (pte + PTE_HWTABLE_OFF) | prot; pmdp[0] = __pmd(pmdval); +#ifndef CONFIG_ARM_LPAE pmdp[1] = __pmd(pmdval + 256 * sizeof(pte_t)); +#endif flush_pmd_entry(pmdp); } |