From f8585fe1fc6f0830f900dad7c8ccc40e17f79644 Mon Sep 17 00:00:00 2001
From: "Bjoern B. Brandenburg" <bbb@cs.unc.edu>
Date: Sat, 6 Nov 2010 16:36:31 -0400
Subject: refactor: use architecture-specific includes for cycles.h

---
 arch/sparc64/include/asm/cycles.h | 16 ++++++++++
 arch/x86/include/asm/cycles.h     | 30 +++++++++++++++++++
 bin/cycles.c                      |  2 +-
 bin/null_call.c                   |  1 -
 include/cycles.h                  | 63 ---------------------------------------
 include/litmus.h                  |  2 +-
 6 files changed, 48 insertions(+), 66 deletions(-)
 create mode 100644 arch/sparc64/include/asm/cycles.h
 create mode 100644 arch/x86/include/asm/cycles.h
 delete mode 100644 include/cycles.h

diff --git a/arch/sparc64/include/asm/cycles.h b/arch/sparc64/include/asm/cycles.h
new file mode 100644
index 0000000..ce0e8ce
--- /dev/null
+++ b/arch/sparc64/include/asm/cycles.h
@@ -0,0 +1,16 @@
+#ifndef ASM_CYCLES_H
+#define ASM_CYCLES_H
+
+#define NPT_BIT 63
+
+typedef unsigned long cycles_t;
+
+#define CYCLES_FMT "lu"
+
+static inline cycles_t get_cycles(void) {
+	cycles_t cycles = 0;
+	__asm__ __volatile__("rd %%asr24, %0" : "=r" (cycles));
+	return cycles & ~(1UL << NPT_BIT);
+}
+
+#endif
diff --git a/arch/x86/include/asm/cycles.h b/arch/x86/include/asm/cycles.h
new file mode 100644
index 0000000..00a7593
--- /dev/null
+++ b/arch/x86/include/asm/cycles.h
@@ -0,0 +1,30 @@
+#ifndef ASM_CYCLES_H
+#define ASM_CYCLES_H
+
+#define rdtscll(val) do { \
+	unsigned int __a,__d; \
+	__asm__ __volatile__("rdtsc" : "=a" (__a), "=d" (__d)); \
+	(val) = ((unsigned long long)__a) | (((unsigned long long)__d)<<32); \
+} while(0)
+
+static __inline__ unsigned long long native_read_tsc(void)
+{
+	unsigned long long val;
+
+	__asm__ __volatile__("mfence":::"memory");
+	rdtscll(val);
+	__asm__ __volatile__("mfence":::"memory");
+
+	return val;
+}
+
+#define CYCLES_FMT "llu"
+
+typedef unsigned long long cycles_t;
+
+static inline cycles_t get_cycles(void)
+{
+	return native_read_tsc();
+}
+
+#endif
diff --git a/bin/cycles.c b/bin/cycles.c
index a6b9308..babd073 100644
--- a/bin/cycles.c
+++ b/bin/cycles.c
@@ -2,7 +2,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 
-#include "cycles.h"
+#include "asm/cycles.h"
 
 int main(int argc, char** argv)
 {
diff --git a/bin/null_call.c b/bin/null_call.c
index 94ba866..61c4629 100644
--- a/bin/null_call.c
+++ b/bin/null_call.c
@@ -5,7 +5,6 @@
 #include <math.h>
 
 #include "litmus.h"
-#include "cycles.h"
 
 static void time_null_call(void)
 {
diff --git a/include/cycles.h b/include/cycles.h
deleted file mode 100644
index e9b0e11..0000000
--- a/include/cycles.h
+++ /dev/null
@@ -1,63 +0,0 @@
-#ifndef CYCLES_H
-#define CYCLES_H
-
-#ifdef __x86_64__
-
-#define rdtscll(val) do { \
-	unsigned int __a,__d; \
-	__asm__ __volatile__("rdtsc" : "=a" (__a), "=d" (__d)); \
-	(val) = ((unsigned long)__a) | (((unsigned long)__d)<<32); \
-} while(0)
-
-static __inline__ unsigned long long native_read_tsc(void)
-{
-	unsigned long long val;
-
-	__asm__ __volatile__("mfence":::"memory");
-	rdtscll(val);
-	__asm__ __volatile__("mfence":::"memory");
-
-	return val;
-}
-
-
-#define CYCLES_FMT "llu"
-
-typedef unsigned long long cycles_t;
-
-static inline cycles_t get_cycles(void)
-{
-	return native_read_tsc();
-}
-#elif defined __i386__
-static inline unsigned long long native_read_tsc(void) {
-	unsigned long long val;
-	__asm__ __volatile__("rdtsc" : "=A" (val));
-	return val;
-}
-
-typedef unsigned long long cycles_t;
-
-#define CYCLES_FMT "llu"
-
-static inline cycles_t get_cycles(void)
-{
-        return native_read_tsc();
-}
-#elif defined __sparc__
-
-#define NPT_BIT 63
-
-typedef unsigned long cycles_t;
-
-#define CYCLES_FMT "lu"
-
-static inline cycles_t get_cycles(void) {
-	unsigned long cycles = 0;
-	__asm__ __volatile__("rd %%asr24, %0" : "=r" (cycles));
-	return cycles & ~(1UL << NPT_BIT);
-}
-
-#endif
-
-#endif
diff --git a/include/litmus.h b/include/litmus.h
index c4c4129..2a26a4a 100644
--- a/include/litmus.h
+++ b/include/litmus.h
@@ -13,7 +13,7 @@ extern "C" {
  */
 #include "litmus/rt_param.h"
 
-#include "cycles.h" /* for null_call() */
+#include "asm/cycles.h" /* for null_call() */
 
 typedef int pid_t;	 /* PID of a task */
 
-- 
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