GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/bootloader/u-boot-2020.01/arch/arc/include/asm/cache.h

@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ */
+
+#ifndef __ASM_ARC_CACHE_H
+#define __ASM_ARC_CACHE_H
+
+#include <config.h>
+
+/*
+ * As of today we may handle any L1 cache line length right in software.
+ * For that essentially cache line length is a variable not constant.
+ * And to satisfy users of ARCH_DMA_MINALIGN we just use largest line length
+ * that may exist in either L1 or L2 (AKA SLC) caches on ARC.
+ */
+#define ARCH_DMA_MINALIGN	128
+
+/* CONFIG_SYS_CACHELINE_SIZE is used a lot in drivers */
+#define CONFIG_SYS_CACHELINE_SIZE	ARCH_DMA_MINALIGN
+
+#if defined(ARC_MMU_ABSENT)
+#define CONFIG_ARC_MMU_VER 0
+#elif defined(CONFIG_ARC_MMU_V2)
+#define CONFIG_ARC_MMU_VER 2
+#elif defined(CONFIG_ARC_MMU_V3)
+#define CONFIG_ARC_MMU_VER 3
+#elif defined(CONFIG_ARC_MMU_V4)
+#define CONFIG_ARC_MMU_VER 4
+#endif
+
+#ifndef __ASSEMBLY__
+
+void cache_init(void);
+void flush_n_invalidate_dcache_all(void);
+void sync_n_cleanup_cache_all(void);
+
+static const inline int is_ioc_enabled(void)
+{
+	return IS_ENABLED(CONFIG_ARC_DBG_IOC_ENABLE);
+}
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_ARC_CACHE_H */