1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/gpu/mali/mali400ko/driver/src/devicedrv/mali/linux/mali_linux_dvfs_pause_resume.c b/drivers/gpu/mali/mali400ko/driver/src/devicedrv/mali/linux/mali_linux_dvfs_pause_resume.c
new file mode 100644
index 00000000000..3d60d18e005
--- /dev/null
+++ b/drivers/gpu/mali/mali400ko/driver/src/devicedrv/mali/linux/mali_linux_dvfs_pause_resume.c
@@ -0,0 +1,72 @@
+/**
+ * Copyright (C) 2010-2011 ARM Limited. All rights reserved.
+ * 
+ * This program is free software and is provided to you under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
+ * 
+ * A copy of the licence is included with the program, and can also be obtained from Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+/**
+ * @file mali_linux_dvfs_pause_resume.c
+ * Implementation of the Mali pause/resume functionality
+ */
+#if USING_MALI_PMM
+#include <linux/version.h>
+#include <linux/sched.h>
+#include <linux/module.h>
+#include "mali_osk.h"
+#include "mali_kernel_common.h"
+#include "mali_platform.h"
+#include "mali_linux_pm.h"
+#include "mali_linux_dvfs_pause_resume.h"
+#include "mali_pmm.h"
+#include "mali_kernel_license.h"
+#ifdef CONFIG_PM
+#if MALI_LICENSE_IS_GPL
+
+/* Mali Pause Resume APIs */
+int mali_dev_dvfs_pause()
+{
+	int err = 0;
+	_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
+	if ((mali_dvfs_device_state ==  _MALI_DEVICE_SUSPEND) || (mali_device_state == _MALI_DEVICE_SUSPEND_IN_PROGRESS)
+	      || (mali_device_state == _MALI_DEVICE_SUSPEND))
+	{
+		err = -EPERM;
+	}
+	if ((mali_dvfs_device_state ==  _MALI_DEVICE_RESUME) && (!err))
+	{
+		mali_device_suspend(MALI_PMM_EVENT_DVFS_PAUSE, &dvfs_pm_thread);
+		mali_dvfs_device_state = _MALI_DEVICE_SUSPEND;
+	}
+	_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
+	return err;
+}
+
+EXPORT_SYMBOL(mali_dev_dvfs_pause);
+
+int mali_dev_dvfs_resume()
+{
+	int err = 0;
+	_mali_osk_lock_wait(lock, _MALI_OSK_LOCKMODE_RW);
+	if ((mali_dvfs_device_state == _MALI_DEVICE_RESUME) || (mali_device_state == _MALI_DEVICE_SUSPEND_IN_PROGRESS)
+	     || (mali_device_state == _MALI_DEVICE_SUSPEND))
+	{
+		err = -EPERM;
+	}
+	if (!err)
+	{
+		mali_device_resume(MALI_PMM_EVENT_DVFS_RESUME, &dvfs_pm_thread);
+		mali_dvfs_device_state = _MALI_DEVICE_RESUME;
+	}
+	_mali_osk_lock_signal(lock, _MALI_OSK_LOCKMODE_RW);
+	return err;
+}
+
+EXPORT_SYMBOL(mali_dev_dvfs_resume);
+
+#endif /* MALI_LICENSE_IS_GPL */
+#endif /* CONFIG_PM */
+#endif /* USING_MALI_PMM */