From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Wed, 30 Aug 2017 08:25:59 +0000
Subject: Initial file dump from open source release

---
 arch/blackfin/include/asm/cache.h | 70 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 arch/blackfin/include/asm/cache.h

(limited to 'arch/blackfin/include/asm/cache.h')

diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h
new file mode 100644
index 00000000..568885a2
--- /dev/null
+++ b/arch/blackfin/include/asm/cache.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2004-2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ARCH_BLACKFIN_CACHE_H
+#define __ARCH_BLACKFIN_CACHE_H
+
+#include <linux/linkage.h>	/* for asmlinkage */
+
+/*
+ * Bytes per L1 cache line
+ * Blackfin loads 32 bytes for cache
+ */
+#define L1_CACHE_SHIFT	5
+#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
+#define SMP_CACHE_BYTES	L1_CACHE_BYTES
+
+#define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
+
+#ifdef CONFIG_SMP
+#define __cacheline_aligned
+#else
+#define ____cacheline_aligned
+
+/*
+ * Put cacheline_aliged data to L1 data memory
+ */
+#ifdef CONFIG_CACHELINE_ALIGNED_L1
+#define __cacheline_aligned				\
+	  __attribute__((__aligned__(L1_CACHE_BYTES),	\
+		__section__(".data_l1.cacheline_aligned")))
+#endif
+
+#endif
+
+/*
+ * largest L1 which this arch supports
+ */
+#define L1_CACHE_SHIFT_MAX	5
+
+#if defined(CONFIG_SMP) && \
+    !defined(CONFIG_BFIN_CACHE_COHERENT)
+# if defined(CONFIG_BFIN_EXTMEM_ICACHEABLE) || defined(CONFIG_BFIN_L2_ICACHEABLE)
+# define __ARCH_SYNC_CORE_ICACHE
+# endif
+# if defined(CONFIG_BFIN_EXTMEM_DCACHEABLE) || defined(CONFIG_BFIN_L2_DCACHEABLE)
+# define __ARCH_SYNC_CORE_DCACHE
+# endif
+#ifndef __ASSEMBLY__
+asmlinkage void __raw_smp_mark_barrier_asm(void);
+asmlinkage void __raw_smp_check_barrier_asm(void);
+
+static inline void smp_mark_barrier(void)
+{
+	__raw_smp_mark_barrier_asm();
+}
+static inline void smp_check_barrier(void)
+{
+	__raw_smp_check_barrier_asm();
+}
+
+void resync_core_dcache(void);
+void resync_core_icache(void);
+#endif
+#endif
+
+
+#endif
-- 
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