1 files changed, 77 insertions, 0 deletions
diff --git a/dvalin/kernel/include/linux/priority_control_manager.h b/dvalin/kernel/include/linux/priority_control_manager.h
new file mode 100644
index 0000000..002e78b
--- /dev/null
+++ b/dvalin/kernel/include/linux/priority_control_manager.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ *
+ * (C) COPYRIGHT 2020-2021 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 license.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * 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, you can access it online at
+ * http://www.gnu.org/licenses/gpl-2.0.html.
+ *
+ */
+
+#ifndef _PRIORITY_CONTROL_MANAGER_H_
+#define _PRIORITY_CONTROL_MANAGER_H_
+
+#include <linux/mm.h>
+#include <linux/of.h>
+#include <linux/version.h>
+
+struct priority_control_manager_device;
+
+/**
+ * struct priority_control_manager_ops - Callbacks for priority control manager operations
+ *
+ * @pcm_scheduler_priority_check: Callback to check if scheduling priority level can be requested
+ */
+struct priority_control_manager_ops {
+	/**
+	 * pcm_scheduler_priority_check: This function can be used to check what priority its work
+	 *                               would be treated as based on the requested_priority value.
+	 *
+	 * @pcm_dev:                     The priority control manager through which the request is
+	 *                               being made.
+	 * @task:                        The task struct of the process requesting the priority check.
+	 * @requested_priority:          The priority level being requested.
+	 *
+	 * The returned value will be:
+	 *   The same as requested_priority if the process has permission to use requested_priority
+	 *   A lower priority value if the process does not have permission to use requested_priority
+	 *
+	 * requested_priority has the following value range:
+	 *   0-3 : Priority level, 0 being highest and 3 being lowest
+	 *
+	 * Return: The priority that would actually be given, could be lower than requested_priority
+	 */
+	int (*pcm_scheduler_priority_check)(
+		struct priority_control_manager_device *pcm_dev,
+		struct task_struct *task, int requested_priority);
+};
+
+/**
+ * struct priority_control_manager_device - Device structure for priority
+ *                                          control manager
+ *
+ * @ops:   Callbacks associated with this device
+ * @data:  Pointer to device private data
+ * @owner: Pointer to the module owner
+ *
+ * This structure should be registered with the platform device using
+ * platform_set_drvdata().
+ */
+struct priority_control_manager_device {
+	struct priority_control_manager_ops ops;
+	void *data;
+	struct module *owner;
+};
+
+#endif /* _PRIORITY_CONTROL_MANAGER_H_ */