1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 * Common powerpc suspend code for 32 and 64 bits
 4 *
 5 * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
 
 
 
 
 
 6 */
 7
 8#include <linux/sched.h>
 9#include <linux/suspend.h>
10#include <asm/current.h>
11#include <asm/mmu_context.h>
12#include <asm/switch_to.h>
13
14void save_processor_state(void)
15{
16	/*
17	 * flush out all the special registers so we don't need
18	 * to save them in the snapshot
19	 */
20	flush_all_to_thread(current);
 
 
21
22#ifdef CONFIG_PPC64
23	hard_irq_disable();
24#endif
25
26}
27
28void restore_processor_state(void)
29{
30#ifdef CONFIG_PPC32
31	switch_mmu_context(current->active_mm, current->active_mm, NULL);
32#endif
33}

 
 1/*
 2 * Common powerpc suspend code for 32 and 64 bits
 3 *
 4 * Copyright 2007	Johannes Berg <johannes@sipsolutions.net>
 5 *
 6 * This program is free software; you can redistribute it and/or
 7 * modify it under the terms of the GNU General Public License
 8 * as published by the Free Software Foundation; either version
 9 * 2 of the License, or (at your option) any later version.
10 */
11
12#include <linux/sched.h>
13#include <asm/system.h>
14#include <asm/current.h>
15#include <asm/mmu_context.h>
 
16
17void save_processor_state(void)
18{
19	/*
20	 * flush out all the special registers so we don't need
21	 * to save them in the snapshot
22	 */
23	flush_fp_to_thread(current);
24	flush_altivec_to_thread(current);
25	flush_spe_to_thread(current);
26
27#ifdef CONFIG_PPC64
28	hard_irq_disable();
29#endif
30
31}
32
33void restore_processor_state(void)
34{
35#ifdef CONFIG_PPC32
36	switch_mmu_context(NULL, current->active_mm);
37#endif
38}