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Diffstat (limited to 'arch/powerpc/mm/hash64_4k.c')
-rw-r--r--arch/powerpc/mm/hash64_4k.c29
1 files changed, 15 insertions, 14 deletions
diff --git a/arch/powerpc/mm/hash64_4k.c b/arch/powerpc/mm/hash64_4k.c
index 47d1b26effc6..6333b273d2d5 100644
--- a/arch/powerpc/mm/hash64_4k.c
+++ b/arch/powerpc/mm/hash64_4k.c
@@ -34,21 +34,21 @@ int __hash_page_4K(unsigned long ea, unsigned long access, unsigned long vsid,
old_pte = pte_val(pte);
/* If PTE busy, retry the access */
- if (unlikely(old_pte & _PAGE_BUSY))
+ if (unlikely(old_pte & H_PAGE_BUSY))
return 0;
/* If PTE permissions don't match, take page fault */
- if (unlikely(access & ~old_pte))
+ if (unlikely(!check_pte_access(access, old_pte)))
return 1;
/*
* Try to lock the PTE, add ACCESSED and DIRTY if it was
* a write access. Since this is 4K insert of 64K page size
- * also add _PAGE_COMBO
+ * also add H_PAGE_COMBO
*/
- new_pte = old_pte | _PAGE_BUSY | _PAGE_ACCESSED;
- if (access & _PAGE_RW)
+ new_pte = old_pte | H_PAGE_BUSY | _PAGE_ACCESSED;
+ if (access & _PAGE_WRITE)
new_pte |= _PAGE_DIRTY;
- } while (old_pte != __cmpxchg_u64((unsigned long *)ptep,
- old_pte, new_pte));
+ } while (!pte_xchg(ptep, __pte(old_pte), __pte(new_pte)));
+
/*
* PP bits. _PAGE_USER is already PP bit 0x2, so we only
* need to add in 0x1 if it's a read-only user page
@@ -60,22 +60,22 @@ int __hash_page_4K(unsigned long ea, unsigned long access, unsigned long vsid,
rflags = hash_page_do_lazy_icache(rflags, __pte(old_pte), trap);
vpn = hpt_vpn(ea, vsid, ssize);
- if (unlikely(old_pte & _PAGE_HASHPTE)) {
+ if (unlikely(old_pte & H_PAGE_HASHPTE)) {
/*
* There MIGHT be an HPTE for this pte
*/
hash = hpt_hash(vpn, shift, ssize);
- if (old_pte & _PAGE_F_SECOND)
+ if (old_pte & H_PAGE_F_SECOND)
hash = ~hash;
slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
- slot += (old_pte & _PAGE_F_GIX) >> _PAGE_F_GIX_SHIFT;
+ slot += (old_pte & H_PAGE_F_GIX) >> H_PAGE_F_GIX_SHIFT;
if (ppc_md.hpte_updatepp(slot, rflags, vpn, MMU_PAGE_4K,
MMU_PAGE_4K, ssize, flags) == -1)
old_pte &= ~_PAGE_HPTEFLAGS;
}
- if (likely(!(old_pte & _PAGE_HASHPTE))) {
+ if (likely(!(old_pte & H_PAGE_HASHPTE))) {
pa = pte_pfn(__pte(old_pte)) << PAGE_SHIFT;
hash = hpt_hash(vpn, shift, ssize);
@@ -115,9 +115,10 @@ repeat:
MMU_PAGE_4K, MMU_PAGE_4K, old_pte);
return -1;
}
- new_pte = (new_pte & ~_PAGE_HPTEFLAGS) | _PAGE_HASHPTE;
- new_pte |= (slot << _PAGE_F_GIX_SHIFT) & (_PAGE_F_SECOND | _PAGE_F_GIX);
+ 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);
}
- *ptep = __pte(new_pte & ~_PAGE_BUSY);
+ *ptep = __pte(new_pte & ~H_PAGE_BUSY);
return 0;
}