Mako-based machines (PA8800 and PA8900 CPUs) don't allow aliasing on
non-equaivalent addresses.
Signed-off-by: Helge Deller <deller@xxxxxx>
---
arch/parisc/include/asm/pgtable.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index d8534f9..291cee2 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -372,7 +372,8 @@ static inline pte_t pte_mkspecial(pte_t pte) { return pte; }
*/
#ifdef CONFIG_HUGETLB_PAGE
#define pte_huge(pte) (pte_val(pte) & _PAGE_HUGE)
-#define pte_mkhuge(pte) (__pte(pte_val(pte) | _PAGE_HUGE))
+#define pte_mkhuge(pte) (__pte(pte_val(pte) | \
+ (parisc_requires_coherency() ? 0 : _PAGE_HUGE)))
#else
#define pte_huge(pte) (0)
#define pte_mkhuge(pte) (pte)
--
2.1.0
--
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