parisc: Disable huge pages on Mako machines

Mako-based machines (PA8800 and PA8900 CPUs) don't allow aliasing on non-equaivalent addresses. Signed-off-by: Helge Deller <deller@gmx.de>
git-mirror · Dec 12, 2015 · 78c0cbf · 78c0cbf
1 parent 5c477b4
commit 78c0cbf
Showing 1 changed file with 2 additions and 1 deletion.
diff --git 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)