diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/tile/include/asm/pgtable_32.h | 2 | ||||
| -rw-r--r-- | arch/tile/include/asm/pgtable_64.h | 24 | ||||
| -rw-r--r-- | arch/tile/mm/pgtable.c | 3 |
3 files changed, 22 insertions, 7 deletions
diff --git a/arch/tile/include/asm/pgtable_32.h b/arch/tile/include/asm/pgtable_32.h index 4ce4a7a99c24..e5bdc0ea85c6 100644 --- a/arch/tile/include/asm/pgtable_32.h +++ b/arch/tile/include/asm/pgtable_32.h @@ -84,6 +84,8 @@ extern unsigned long VMALLOC_RESERVE /* = CONFIG_VMALLOC_RESERVE */; /* We have no pmd or pud since we are strictly a two-level page table */ #include <asm-generic/pgtable-nopmd.h> +static inline int pud_huge_page(pud_t pud) { return 0; } + /* We don't define any pgds for these addresses. */ static inline int pgd_addr_invalid(unsigned long addr) { diff --git a/arch/tile/include/asm/pgtable_64.h b/arch/tile/include/asm/pgtable_64.h index 2492fa5478e7..7cb8d355f91b 100644 --- a/arch/tile/include/asm/pgtable_64.h +++ b/arch/tile/include/asm/pgtable_64.h @@ -63,6 +63,15 @@ /* We have no pud since we are a three-level page table. */ #include <asm-generic/pgtable-nopud.h> +/* + * pmds are the same as pgds and ptes, so converting is a no-op. + */ +#define pmd_pte(pmd) (pmd) +#define pmdp_ptep(pmdp) (pmdp) +#define pte_pmd(pte) (pte) + +#define pud_pte(pud) ((pud).pgd) + static inline int pud_none(pud_t pud) { return pud_val(pud) == 0; @@ -73,6 +82,11 @@ static inline int pud_present(pud_t pud) return pud_val(pud) & _PAGE_PRESENT; } +static inline int pud_huge_page(pud_t pud) +{ + return pud_val(pud) & _PAGE_HUGE_PAGE; +} + #define pmd_ERROR(e) \ pr_err("%s:%d: bad pmd 0x%016llx.\n", __FILE__, __LINE__, pmd_val(e)) @@ -89,6 +103,9 @@ static inline int pud_bad(pud_t pud) /* Return the page-table frame number (ptfn) that a pud_t points at. */ #define pud_ptfn(pud) hv_pte_get_ptfn((pud).pgd) +/* Return the page frame number (pfn) that a pud_t points at. */ +#define pud_pfn(pud) pte_pfn(pud_pte(pud)) + /* * A given kernel pud_t maps to a kernel pmd_t table at a specific * virtual address. Since kernel pmd_t tables can be aligned at @@ -152,13 +169,6 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, return hv_pte(__insn_exch(&ptep->val, 0UL)); } -/* - * pmds are the same as pgds and ptes, so converting is a no-op. - */ -#define pmd_pte(pmd) (pmd) -#define pmdp_ptep(pmdp) (pmdp) -#define pte_pmd(pte) (pte) - #endif /* __ASSEMBLY__ */ #endif /* _ASM_TILE_PGTABLE_64_H */ diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c index e41487e22163..300443389671 100644 --- a/arch/tile/mm/pgtable.c +++ b/arch/tile/mm/pgtable.c @@ -338,6 +338,8 @@ pte_t *virt_to_pte(struct mm_struct* mm, unsigned long addr) pud = pud_offset(pgd, addr); if (!pud_present(*pud)) return NULL; + if (pud_huge_page(*pud)) + return (pte_t *)pud; pmd = pmd_offset(pud, addr); if (pmd_huge_page(*pmd)) return (pte_t *)pmd; @@ -345,6 +347,7 @@ pte_t *virt_to_pte(struct mm_struct* mm, unsigned long addr) return NULL; return pte_offset_kernel(pmd, addr); } +EXPORT_SYMBOL(virt_to_pte); pgprot_t set_remote_cache_cpu(pgprot_t prot, int cpu) { |