1 files changed, 38 insertions, 0 deletions

diff --git a/arch/avr32/include/asm/cache.h b/arch/avr32/include/asm/cache.h
new file mode 100644
index 000000000000..d3cf35ab11ab
--- /dev/null
+++ b/arch/avr32/include/asm/cache.h
@@ -0,0 +1,38 @@
+#ifndef __ASM_AVR32_CACHE_H
+#define __ASM_AVR32_CACHE_H
+
+#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;
+        unsigned int sets;
+        unsigned int linesz;
+};
+#endif /* __ASSEMBLER */
+
+/* Cache operation constants */
+#define ICACHE_FLUSH            0x00
+#define ICACHE_INVALIDATE       0x01
+#define ICACHE_LOCK             0x02
+#define ICACHE_UNLOCK           0x03
+#define ICACHE_PREFETCH         0x04
+
+#define DCACHE_FLUSH            0x08
+#define DCACHE_LOCK             0x09
+#define DCACHE_UNLOCK           0x0a
+#define DCACHE_INVALIDATE       0x0b
+#define DCACHE_CLEAN            0x0c
+#define DCACHE_CLEAN_INVAL      0x0d
+
+#endif /* __ASM_AVR32_CACHE_H */