1 files changed, 35 insertions, 0 deletions
diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h
new file mode 100644
index 0000000..145b878
--- /dev/null
+++ b/arch/x86/include/asm/cache.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ */
+
+#ifndef __X86_CACHE_H__
+#define __X86_CACHE_H__
+
+/*
+ * If CONFIG_SYS_CACHELINE_SIZE is defined use it for DMA alignment.  Otherwise
+ * use 64-bytes, a safe default for x86.
+ */
+#ifndef CONFIG_SYS_CACHELINE_SIZE
+#define CONFIG_SYS_CACHELINE_SIZE	64
+#endif
+
+#define ARCH_DMA_MINALIGN		CONFIG_SYS_CACHELINE_SIZE
+
+static inline void wbinvd(void)
+{
+	asm volatile ("wbinvd" : : : "memory");
+}
+
+static inline void invd(void)
+{
+	asm volatile("invd" : : : "memory");
+}
+
+/* Enable caches and write buffer */
+void enable_caches(void);
+
+/* Disable caches and write buffer */
+void disable_caches(void);
+
+#endif /* __X86_CACHE_H__ */