diff options
Diffstat (limited to 'arch/powerpc/include/asm/book3s/64/hash-4k.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/hash-4k.h | 37 |
1 files changed, 25 insertions, 12 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/hash-4k.h b/arch/powerpc/include/asm/book3s/64/hash-4k.h index 6472b08fa1b0..aa90a048f319 100644 --- a/arch/powerpc/include/asm/book3s/64/hash-4k.h +++ b/arch/powerpc/include/asm/book3s/64/hash-4k.h @@ -74,20 +74,33 @@ #define remap_4k_pfn(vma, addr, pfn, prot) \ remap_pfn_range((vma), (addr), (pfn), PAGE_SIZE, (prot)) -#ifdef CONFIG_HUGETLB_PAGE -static inline int hash__hugepd_ok(hugepd_t hpd) +/* + * With 4K page size the real_pte machinery is all nops. + */ +static inline real_pte_t __real_pte(pte_t pte, pte_t *ptep, int offset) { - unsigned long hpdval = hpd_val(hpd); - /* - * if it is not a pte and have hugepd shift mask - * set, then it is a hugepd directory pointer - */ - if (!(hpdval & _PAGE_PTE) && (hpdval & _PAGE_PRESENT) && - ((hpdval & HUGEPD_SHIFT_MASK) != 0)) - return true; - return false; + return (real_pte_t){pte}; } -#endif + +#define __rpte_to_pte(r) ((r).pte) + +static inline unsigned long __rpte_to_hidx(real_pte_t rpte, unsigned long index) +{ + return pte_val(__rpte_to_pte(rpte)) >> H_PAGE_F_GIX_SHIFT; +} + +#define pte_iterate_hashed_subpages(rpte, psize, va, index, shift) \ + do { \ + index = 0; \ + shift = mmu_psize_defs[psize].shift; \ + +#define pte_iterate_hashed_end() } while(0) + +/* + * We expect this to be called only for user addresses or kernel virtual + * addresses other than the linear mapping. + */ +#define pte_pagesize_index(mm, addr, pte) MMU_PAGE_4K /* * 4K PTE format is different from 64K PTE format. Saving the hash_slot is just |