From d511c84bb8211b4e20ff6bcaea17b00a4e275a5f Mon Sep 17 00:00:00 2001
From: compudj <compudj@04897980-b3bd-0310-b5e0-8ef037075253>
Date: Tue, 8 Apr 2008 04:58:23 +0000
Subject: [PATCH] update

git-svn-id: http://ltt.polymtl.ca/svn@2872 04897980-b3bd-0310-b5e0-8ef037075253
---
 markers-test/Makefile   |  1 +
 markers-test/cachectl.c | 30 ++++++++++++++++++++++++++++++
 markers-test/runtest.sh |  7 +++++--
 3 files changed, 36 insertions(+), 2 deletions(-)
 create mode 100644 markers-test/cachectl.c

diff --git a/markers-test/Makefile b/markers-test/Makefile
index 4499bb27..d07a8292 100644
--- a/markers-test/Makefile
+++ b/markers-test/Makefile
@@ -4,6 +4,7 @@ ifneq ($(KERNELRELEASE),)
 	obj-m += test-mark-speed-edit.o
 	obj-m += test-mark-speed-opt.o
 	obj-m += test-mark-speed-local.o
+	obj-m += cachectl.o
 else
 	KERNELDIR ?= /lib/modules/$(shell uname -r)/build
 	PWD := $(shell pwd)
diff --git a/markers-test/cachectl.c b/markers-test/cachectl.c
new file mode 100644
index 00000000..7bbea8a8
--- /dev/null
+++ b/markers-test/cachectl.c
@@ -0,0 +1,30 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+int init_module()
+{
+  unsigned tmp;
+    
+  /* Disable cache */
+    
+  asm volatile ("movl  %%cr0, %0\n\t"
+                "orl   $0x40000000, %0\n\t"
+                "wbinvd\n\t"
+                "movl  %0, %%cr0\n\t"
+                "wbinvd\n\t"
+                : "=r" (tmp) : : "memory");
+
+  return 0;
+}
+
+void cleanup_module()
+{
+  unsigned tmp;
+
+  asm volatile ("movl  %%cr0, %0\n\t"
+                "andl   $0xbfffffff, %0\n\t"
+                "wbinvd\n\t"
+                "movl  %0, %%cr0\n\t"
+                "wbinvd\n\t"
+                : "=r" (tmp) : : "memory");
+}
diff --git a/markers-test/runtest.sh b/markers-test/runtest.sh
index 0f290121..986a6e16 100644
--- a/markers-test/runtest.sh
+++ b/markers-test/runtest.sh
@@ -41,8 +41,10 @@ rmmod test-mark-speed-local
 RESNOPLOCAL=`dmesg |grep "cycles : " |tail -n 10 |sed 's/^\[.*\] //'| sed 's/cycles : \(.*\)$/\1/'`
 
 
-make clean
-make EXTRA_CFLAGS=-DCACHEFLUSH
+#make clean
+#make EXTRA_CFLAGS=-DCACHEFLUSH
+
+modprobe cachectl
 
 insmod test-mark-speed-empty.ko
 cat /proc/testmark
@@ -79,6 +81,7 @@ rmmod test-mark-speed-local
 RESNOPLOCALFL=`dmesg |grep "cycles : " |tail -n 10 |sed 's/^\[.*\] //'| sed 's/cycles : \(.*\)$/\1/'`
 
 
+rmmod cachectl
 
 
 echo "Results in cycles per loop"
-- 
2.34.1