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-rw-r--r--include/asm-ia64/pgtable.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/include/asm-ia64/pgtable.h b/include/asm-ia64/pgtable.h
index 203005b5c..a941cfccf 100644
--- a/include/asm-ia64/pgtable.h
+++ b/include/asm-ia64/pgtable.h
@@ -294,6 +294,18 @@ extern pmd_t *ia64_bad_pagetable (void);
*/
#define pgprot_noncached(prot) __pgprot((pgprot_val(prot) & ~_PAGE_MA_MASK) | _PAGE_MA_UC)
+/*
+ * Return the region index for virtual address ADDRESS.
+ */
+extern __inline__ unsigned long
+rgn_index (unsigned long address)
+{
+ ia64_va a;
+
+ a.l = address;
+ return a.f.reg;
+}
+
extern __inline__ unsigned long
pgd_index (unsigned long address)
{
@@ -347,7 +359,7 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
* execution context?).
*
*/
-#if 0
+#if 1
# define update_mmu_cache(vma,address,pte)
#else
# define update_mmu_cache(vma,address,pte) \