add definitions for likely/unlikely

git-svn-id: https://svn.openpcd.org:2342/trunk@55 6dc7ffe9-61d6-0310-9af1-9938baff3ed1

2 files changed, 8 insertions, 0 deletions

diff --git a/openpcd/firmware/include/asm/atomic.h b/openpcd/firmware/include/asm/atomic.h
index bb5a2b1..19e8ce6 100644
--- a/openpcd/firmware/include/asm/atomic.h
+++ b/openpcd/firmware/include/asm/atomic.h
@@ -18,6 +18,7 @@ typedef struct { volatile int counter; } atomic_t;
 #define atomic_read(v)	((v)->counter)
 
 #include <asm/system.h>
+#include <asm/compiler.h>
 
 #define atomic_set(v,i)	(((v)->counter) = (i))
 
diff --git a/openpcd/firmware/include/asm/compiler.h b/openpcd/firmware/include/asm/compiler.h
new file mode 100644
index 0000000..de4dfaa
--- /dev/null
+++ b/openpcd/firmware/include/asm/compiler.h
@@ -0,0 +1,7 @@
+#ifndef _ASM_COMPILER_H
+#define _ASM_COMPILER_H
+
+#define likely(x)       __builtin_expect(!!(x), 1)
+#define unlikely(x)     __builtin_expect(!!(x), 0)
+
+#endif