SPDX: Convert all of our single license tags to Linux Kernel style

[oweals/u-boot.git] / arch / mips / include / asm / cache.h

diff --git a/arch/mips/include/asm/cache.h b/arch/mips/include/asm/cache.h
index 806bd26ba989e4e4954988940b19028c37a901ab..00696e672de0222037266bcd81f316a226404683 100644 (file)
--- a/arch/mips/include/asm/cache.h
+++ b/arch/mips/include/asm/cache.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2011 The Chromium OS Authors.
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #ifndef __MIPS_CACHE_H__
@@ -12,4 +11,22 @@
 
 #define ARCH_DMA_MINALIGN      (L1_CACHE_BYTES)
 
+/*
+ * CONFIG_SYS_CACHELINE_SIZE is still used in various drivers primarily for
+ * DMA buffer alignment. Satisfy those drivers by providing it as a synonym
+ * of ARCH_DMA_MINALIGN for now.
+ */
+#define CONFIG_SYS_CACHELINE_SIZE ARCH_DMA_MINALIGN
+
+#ifndef __ASSEMBLY__
+/**
+ * mips_cache_probe() - Probe the properties of the caches
+ *
+ * Call this to probe the properties such as line sizes of the caches
+ * present in the system, if any. This must be done before cache maintenance
+ * functions such as flush_cache may be called.
+ */
+void mips_cache_probe(void);
+#endif
+
 #endif /* __MIPS_CACHE_H__ */