Initial import

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 000000000..c3a58a189
--- /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_DMA_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 */