summaryrefslogtreecommitdiffstats
path: root/arch/xtensa/include/asm/cache.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/xtensa/include/asm/cache.h')
-rw-r--r--arch/xtensa/include/asm/cache.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/cache.h b/arch/xtensa/include/asm/cache.h
new file mode 100644
index 000000000000..f04c9891142f
--- /dev/null
+++ b/arch/xtensa/include/asm/cache.h
@@ -0,0 +1,33 @@
+/*
+ * include/asm-xtensa/cache.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_CACHE_H
+#define _XTENSA_CACHE_H
+
+#include <variant/core.h>
+
+#define L1_CACHE_SHIFT XCHAL_DCACHE_LINEWIDTH
+#define L1_CACHE_BYTES XCHAL_DCACHE_LINESIZE
+#define SMP_CACHE_BYTES L1_CACHE_BYTES
+
+#define DCACHE_WAY_SIZE (XCHAL_DCACHE_SIZE/XCHAL_DCACHE_WAYS)
+#define ICACHE_WAY_SIZE (XCHAL_ICACHE_SIZE/XCHAL_ICACHE_WAYS)
+#define DCACHE_WAY_SHIFT (XCHAL_DCACHE_SETWIDTH + XCHAL_DCACHE_LINEWIDTH)
+#define ICACHE_WAY_SHIFT (XCHAL_ICACHE_SETWIDTH + XCHAL_ICACHE_LINEWIDTH)
+
+/* Maximum cache size per way. */
+#if DCACHE_WAY_SIZE >= ICACHE_WAY_SIZE
+# define CACHE_WAY_SIZE DCACHE_WAY_SIZE
+#else
+# define CACHE_WAY_SIZE ICACHE_WAY_SIZE
+#endif
+
+
+#endif /* _XTENSA_CACHE_H */
OpenPOWER on IntegriCloud