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-rw-r--r--tools/power/cpupower/lib/cpufreq.h4
-rwxr-xr-xtools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py15
2 files changed, 15 insertions, 4 deletions
diff --git a/tools/power/cpupower/lib/cpufreq.h b/tools/power/cpupower/lib/cpufreq.h
index 3b005c39f068..60beaf5ed2ea 100644
--- a/tools/power/cpupower/lib/cpufreq.h
+++ b/tools/power/cpupower/lib/cpufreq.h
@@ -11,10 +11,6 @@
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __CPUPOWER_CPUFREQ_H__
diff --git a/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py b/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py
index 0b24dd9d01ff..29f50d4cfea0 100755
--- a/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py
+++ b/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py
@@ -411,6 +411,16 @@ def set_trace_buffer_size():
print('IO error setting trace buffer size ')
quit()
+def free_trace_buffer():
+ """ Free the trace buffer memory """
+
+ try:
+ open('/sys/kernel/debug/tracing/buffer_size_kb'
+ , 'w').write("1")
+ except:
+ print('IO error setting trace buffer size ')
+ quit()
+
def read_trace_data(filename):
""" Read and parse trace data """
@@ -583,4 +593,9 @@ for root, dirs, files in os.walk('.'):
for f in files:
fix_ownership(f)
+clear_trace_file()
+# Free the memory
+if interval:
+ free_trace_buffer()
+
os.chdir('../../')