mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-15 13:22:55 +00:00
ca052f7924
PS3 save power on halt:
- Replace infinite busy loops by smarter loops calling
lv1_pause() to save power.
- Add ps3_halt() and ps3_sys_manager_halt().
- Add __noreturn annotations.
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
/*
|
|
* PS3 System Manager core.
|
|
*
|
|
* Copyright (C) 2007 Sony Computer Entertainment Inc.
|
|
* Copyright 2007 Sony Corp.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; version 2 of the 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, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <linux/kernel.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 ? *ops : ps3_sys_manager_ops;
|
|
}
|
|
EXPORT_SYMBOL_GPL(ps3_sys_manager_register_ops);
|
|
|
|
void 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 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 ps3_sys_manager_halt(void)
|
|
{
|
|
pr_emerg("System Halted, OK to turn off power\n");
|
|
local_irq_disable();
|
|
while (1)
|
|
lv1_pause(1);
|
|
}
|
|
|