1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/ps3/sys-manager-core.c b/drivers/ps3/sys-manager-core.c
new file mode 100644
index 000000000..e061b7d06
--- /dev/null
+++ b/drivers/ps3/sys-manager-core.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *  PS3 System Manager core.
+ *
+ *  Copyright (C) 2007 Sony Computer Entertainment Inc.
+ *  Copyright 2007 Sony Corp.
+ */
+
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <asm/lv1call.h>
+#include <asm/ps3.h>
+
+/**
+ * Staticly linked routines that allow late binding of a loaded sys-manager
+ * module.
+ */
+
+static struct ps3_sys_manager_ops ps3_sys_manager_ops;
+
+/**
+ * ps3_register_sys_manager_ops - Bind ps3_sys_manager_ops to a module.
+ * @ops: struct ps3_sys_manager_ops.
+ *
+ * To be called from ps3_sys_manager_probe() and ps3_sys_manager_remove() to
+ * register call back ops for power control.  Copies data to the static
+ * variable ps3_sys_manager_ops.
+ */
+
+void ps3_sys_manager_register_ops(const struct ps3_sys_manager_ops *ops)
+{
+	BUG_ON(!ops);
+	BUG_ON(!ops->dev);
+	ps3_sys_manager_ops = *ops;
+}
+EXPORT_SYMBOL_GPL(ps3_sys_manager_register_ops);
+
+void __noreturn ps3_sys_manager_power_off(void)
+{
+	if (ps3_sys_manager_ops.power_off)
+		ps3_sys_manager_ops.power_off(ps3_sys_manager_ops.dev);
+
+	ps3_sys_manager_halt();
+}
+
+void __noreturn ps3_sys_manager_restart(void)
+{
+	if (ps3_sys_manager_ops.restart)
+		ps3_sys_manager_ops.restart(ps3_sys_manager_ops.dev);
+
+	ps3_sys_manager_halt();
+}
+
+void __noreturn ps3_sys_manager_halt(void)
+{
+	pr_emerg("System Halted, OK to turn off power\n");
+	local_irq_disable();
+	while (1)
+		lv1_pause(1);
+}
+