1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/gpu/arm/mali400/r4p0_rel0/common/mali_session.c b/drivers/gpu/arm/mali400/r4p0_rel0/common/mali_session.c
new file mode 100644
index 00000000000..39ed8a04b12
--- /dev/null
+++ b/drivers/gpu/arm/mali400/r4p0_rel0/common/mali_session.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+#include "mali_osk.h"
+#include "mali_osk_list.h"
+#include "mali_session.h"
+
+_MALI_OSK_LIST_HEAD(mali_sessions);
+static u32 mali_session_count = 0;
+
+_mali_osk_spinlock_irq_t *mali_sessions_lock;
+
+_mali_osk_errcode_t mali_session_initialize(void)
+{
+	_MALI_OSK_INIT_LIST_HEAD(&mali_sessions);
+
+	mali_sessions_lock = _mali_osk_spinlock_irq_init(_MALI_OSK_LOCKFLAG_ORDERED, _MALI_OSK_LOCK_ORDER_SESSIONS);
+
+	if (NULL == mali_sessions_lock) return _MALI_OSK_ERR_NOMEM;
+
+	return _MALI_OSK_ERR_OK;
+}
+
+void mali_session_terminate(void)
+{
+	_mali_osk_spinlock_irq_term(mali_sessions_lock);
+}
+
+void mali_session_add(struct mali_session_data *session)
+{
+	mali_session_lock();
+	_mali_osk_list_add(&session->link, &mali_sessions);
+	mali_session_count++;
+	mali_session_unlock();
+}
+
+void mali_session_remove(struct mali_session_data *session)
+{
+	mali_session_lock();
+	_mali_osk_list_delinit(&session->link);
+	mali_session_count--;
+	mali_session_unlock();
+}
+
+u32 mali_session_get_count(void)
+{
+	return mali_session_count;
+}
+
+/*
+ * Get the max completed window jobs from all active session,
+ * which will be used in window render frame per sec calculate
+ */
+#if defined(CONFIG_MALI400_POWER_PERFORMANCE_POLICY)
+u32 mali_session_max_window_num(void)
+{
+	struct mali_session_data *session, *tmp;
+	u32 max_window_num = 0;
+	u32 tmp_number = 0;
+
+	mali_session_lock();
+
+	MALI_SESSION_FOREACH(session, tmp, link) {
+		tmp_number = _mali_osk_atomic_xchg(&session->number_of_window_jobs, 0);
+		if (max_window_num < tmp_number) {
+			max_window_num = tmp_number;
+		}
+	}
+
+	mali_session_unlock();
+
+	return max_window_num;
+}
+#endif