diff options
Diffstat (limited to 'arch/powerpc/mm/hash64_4k.c')
| -rw-r--r-- | arch/powerpc/mm/hash64_4k.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/arch/powerpc/mm/hash64_4k.c b/arch/powerpc/mm/hash64_4k.c index 6fa450c12d6d..5a69b51d08a3 100644 --- a/arch/powerpc/mm/hash64_4k.c +++ b/arch/powerpc/mm/hash64_4k.c @@ -20,6 +20,7 @@ int __hash_page_4K(unsigned long ea, unsigned long access, unsigned long vsid, pte_t *ptep, unsigned long trap, unsigned long flags, int ssize, int subpg_prot) { + real_pte_t rpte; unsigned long hpte_group; unsigned long rflags, pa; unsigned long old_pte, new_pte; @@ -54,6 +55,7 @@ int __hash_page_4K(unsigned long ea, unsigned long access, unsigned long vsid, * need to add in 0x1 if it's a read-only user page */ rflags = htab_convert_pte_flags(new_pte); + rpte = __real_pte(__pte(old_pte), ptep); if (cpu_has_feature(CPU_FTR_NOEXECUTE) && !cpu_has_feature(CPU_FTR_COHERENT_ICACHE)) @@ -64,13 +66,10 @@ int __hash_page_4K(unsigned long ea, unsigned long access, unsigned long vsid, /* * There MIGHT be an HPTE for this pte */ - hash = hpt_hash(vpn, shift, ssize); - if (old_pte & H_PAGE_F_SECOND) - hash = ~hash; - slot = (hash & htab_hash_mask) * HPTES_PER_GROUP; - slot += (old_pte & H_PAGE_F_GIX) >> H_PAGE_F_GIX_SHIFT; + unsigned long gslot = pte_get_hash_gslot(vpn, shift, ssize, + rpte, 0); - if (mmu_hash_ops.hpte_updatepp(slot, rflags, vpn, MMU_PAGE_4K, + if (mmu_hash_ops.hpte_updatepp(gslot, rflags, vpn, MMU_PAGE_4K, MMU_PAGE_4K, ssize, flags) == -1) old_pte &= ~_PAGE_HPTEFLAGS; } @@ -118,8 +117,7 @@ repeat: return -1; } new_pte = (new_pte & ~_PAGE_HPTEFLAGS) | H_PAGE_HASHPTE; - new_pte |= (slot << H_PAGE_F_GIX_SHIFT) & - (H_PAGE_F_SECOND | H_PAGE_F_GIX); + new_pte |= pte_set_hidx(ptep, rpte, 0, slot); } *ptep = __pte(new_pte & ~H_PAGE_BUSY); return 0; |