diff options
Diffstat (limited to 'arch/arm64/include/asm/pgalloc.h')
| -rw-r--r-- | arch/arm64/include/asm/pgalloc.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/pgalloc.h b/arch/arm64/include/asm/pgalloc.h index 48298376e46a..7deb5750a945 100644 --- a/arch/arm64/include/asm/pgalloc.h +++ b/arch/arm64/include/asm/pgalloc.h @@ -46,6 +46,26 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) #endif /* CONFIG_ARM64_2_LEVELS */ +#ifdef CONFIG_ARM64_4_LEVELS + +static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) +{ + return (pud_t *)get_zeroed_page(GFP_KERNEL | __GFP_REPEAT); +} + +static inline void pud_free(struct mm_struct *mm, pud_t *pud) +{ + BUG_ON((unsigned long)pud & (PAGE_SIZE-1)); + free_page((unsigned long)pud); +} + +static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud) +{ + set_pgd(pgd, __pgd(__pa(pud) | PUD_TYPE_TABLE)); +} + +#endif /* CONFIG_ARM64_4_LEVELS */ + extern pgd_t *pgd_alloc(struct mm_struct *mm); extern void pgd_free(struct mm_struct *mm, pgd_t *pgd); |