---

yaml --- r: 57779 b: refs/heads/master c: 093d0fa h: refs/heads/master i: 57777: 5506e95 57775: cc763bc v: v3
git-mirror · Jun 14, 2007 · 57b31eb · 57b31eb
1 parent 1918f08
commit 57b31eb
Show file tree

Hide file tree

Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2fdfe8d9a2687718b07a35196b89fbf48ba0c82f
+refs/heads/master: 093d0faf57e59feee224217273f944e10e4e3562
diff --git a/trunk/include/asm-avr32/cache.h b/trunk/include/asm-avr32/cache.h
@@ -4,6 +4,15 @@
 #define L1_CACHE_SHIFT 5
 #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
 
+/*
+ * Memory returned by kmalloc() may be used for DMA, so we must make
+ * sure that all such allocations are cache aligned. Otherwise,
+ * unrelated code may cause parts of the buffer to be read into the
+ * cache before the transfer is done, causing old data to be seen by
+ * the CPU.
+ */
+#define ARCH_KMALLOC_MINALIGN	L1_CACHE_BYTES
+
 #ifndef __ASSEMBLER__
 struct cache_info {
 	unsigned int ways;