---

yaml --- r: 225684 b: refs/heads/master c: f6f41eb h: refs/heads/master v: v3
git-mirror · Nov 30, 2010 · 6d47175 · 6d47175
1 parent 66be2ed
commit 6d47175
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Showing 2 changed files with 10 additions and 7 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 516cbc793eb4be5123289d067b54dfcdabeddb25
+refs/heads/master: f6f41eb9ccc0e6fad0ccba4c5e0a97de935db734
diff --git a/trunk/arch/arm/mach-msm/iommu.c b/trunk/arch/arm/mach-msm/iommu.c
@@ -50,13 +50,16 @@ static void __flush_iotlb(struct iommu_domain *domain)
 	unsigned long *fl_table = priv->pgtable;
 	int i;
 
-	dmac_flush_range(fl_table, fl_table + SZ_16K);
+	if (!list_empty(&priv->list_attached)) {
+		dmac_flush_range(fl_table, fl_table + SZ_16K);
 
-	for (i = 0; i < NUM_FL_PTE; i++)
-		if ((fl_table[i] & 0x03) == FL_TYPE_TABLE) {
-			void *sl_table = __va(fl_table[i] & FL_BASE_MASK);
-			dmac_flush_range(sl_table, sl_table + SZ_4K);
-		}
+		for (i = 0; i < NUM_FL_PTE; i++)
+			if ((fl_table[i] & 0x03) == FL_TYPE_TABLE) {
+				void *sl_table = __va(fl_table[i] &
+								FL_BASE_MASK);
+				dmac_flush_range(sl_table, sl_table + SZ_4K);
+			}
+	}
 #endif
 
 	list_for_each_entry(ctx_drvdata, &priv->list_attached, attached_elm) {