powerpc/8xx: Provide ptep_get() with 16k pages

[linux-2.6-microblaze.git] / arch / powerpc / include / asm / nohash / 32 / pgtable.h

diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
index 5a590ce..b0afbdd 100644 (file)
--- a/arch/powerpc/include/asm/nohash/32/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
@@ -284,6 +284,16 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
        return __pte(pte_update(mm, addr, ptep, ~0, 0, 0));
 }
 
+#if defined(CONFIG_PPC_8xx) && defined(CONFIG_PPC_16K_PAGES)
+#define __HAVE_ARCH_PTEP_GET
+static inline pte_t ptep_get(pte_t *ptep)
+{
+       pte_t pte = {READ_ONCE(ptep->pte), 0, 0, 0};
+
+       return pte;
+}
+#endif
+
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
 static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr,
                                      pte_t *ptep)