From a8865f8b415788c4e9bb7f68e38d41aec0e485db Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Mon, 25 Jan 2016 10:20:28 +0100
Subject: score: Introduce CPU_CACHE_LINE_BYTES

Add CPU_CACHE_LINE_BYTES for the maximum cache line size in bytes.  The
actual processor may use no cache or a smaller cache line size.
---
 c/src/lib/libcpu/shared/src/cache_manager.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'c/src/lib/libcpu/shared')

diff --git a/c/src/lib/libcpu/shared/src/cache_manager.c b/c/src/lib/libcpu/shared/src/cache_manager.c
index 202ea8e1ba..255f621771 100644
--- a/c/src/lib/libcpu/shared/src/cache_manager.c
+++ b/c/src/lib/libcpu/shared/src/cache_manager.c
@@ -42,6 +42,14 @@
 #include <rtems.h>
 #include "cache_.h"
 
+#if CPU_DATA_CACHE_ALIGNMENT > CPU_CACHE_LINE_BYTES
+#error "CPU_DATA_CACHE_ALIGNMENT is greater than CPU_CACHE_LINE_BYTES"
+#endif
+
+#if CPU_INSTRUCTION_CACHE_ALIGNMENT > CPU_CACHE_LINE_BYTES
+#error "CPU_INSTRUCTION_CACHE_ALIGNMENT is greater than CPU_CACHE_LINE_BYTES"
+#endif
+
 #if defined(RTEMS_SMP)
 
 #include <rtems/score/smpimpl.h>
-- 
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