1 files changed, 58 insertions, 0 deletions
diff --git a/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1_FreedomStudio/freedom-metal/metal/cache.h b/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1_FreedomStudio/freedom-metal/metal/cache.h
new file mode 100644
index 000000000..a8a60ada6
--- /dev/null
+++ b/FreeRTOS/Demo/RISC-V_RV32_SiFive_HiFive1_FreedomStudio/freedom-metal/metal/cache.h
@@ -0,0 +1,58 @@
+/* Copyright 2018 SiFive, Inc */
+/* SPDX-License-Identifier: Apache-2.0 */
+
+#ifndef METAL__CACHE_H
+#define METAL__CACHE_H
+
+/*!
+ * @file cache.h
+ *
+ * @brief API for configuring caches
+ */
+
+struct metal_cache;
+
+struct __metal_cache_vtable {
+	void (*init)(struct metal_cache *cache, int ways);
+	int (*get_enabled_ways)(struct metal_cache *cache);
+	int (*set_enabled_ways)(struct metal_cache *cache, int ways);
+};
+
+/*!
+ * @brief a handle for a cache
+ */
+struct metal_cache {
+	const struct __metal_cache_vtable *vtable;
+};
+
+/*!
+ * @brief Initialize a cache
+ * @param cache The handle for the cache to initialize
+ * @param ways The number of ways to enable
+ *
+ * Initializes a cache with the requested number of ways enabled.
+ */
+inline void metal_cache_init(struct metal_cache *cache, int ways) {
+	return cache->vtable->init(cache, ways);
+}
+
+/*!
+ * @brief Get the current number of enabled cache ways
+ * @param cache The handle for the cache
+ * @return The current number of enabled cache ways
+ */
+inline int metal_cache_get_enabled_ways(struct metal_cache *cache) {
+	return cache->vtable->get_enabled_ways(cache);
+}
+
+/*!
+ * @brief Enable the requested number of cache ways
+ * @param cache The handle for the cache
+ * @param ways The number of ways to enabled
+ * @return 0 if the ways are successfully enabled
+ */
+inline int metal_cache_set_enabled_ways(struct metal_cache *cache, int ways) {
+	return cache->vtable->set_enabled_ways(cache, ways);
+}
+
+#endif