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-rw-r--r--arch/hexagon/include/asm/cache.h23
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diff --git a/arch/hexagon/include/asm/cache.h b/arch/hexagon/include/asm/cache.h
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+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Cache definitions for the Hexagon architecture
+ *
+ * Copyright (c) 2010-2011,2014 The Linux Foundation. All rights reserved.
+ */
+
+#ifndef __ASM_CACHE_H
+#define __ASM_CACHE_H
+
+/* Bytes per L1 cache line */
+#define L1_CACHE_SHIFT (5)
+#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
+
+#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
+
+#define __cacheline_aligned __aligned(L1_CACHE_BYTES)
+#define ____cacheline_aligned __aligned(L1_CACHE_BYTES)
+
+/* See http://lwn.net/Articles/262554/ */
+#define __read_mostly
+
+#endif