| /* |
| * Common powerpc suspend code for 32 and 64 bits |
| * |
| * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> |
| * |
| * 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; either version |
| * 2 of the License, or (at your option) any later version. |
| */ |
| |
| #include <linux/sched.h> |
| #include <asm/suspend.h> |
| #include <asm/system.h> |
| #include <asm/current.h> |
| #include <asm/mmu_context.h> |
| |
| void save_processor_state(void) |
| { |
| /* |
| * flush out all the special registers so we don't need |
| * to save them in the snapshot |
| */ |
| flush_fp_to_thread(current); |
| flush_altivec_to_thread(current); |
| flush_spe_to_thread(current); |
| |
| #ifdef CONFIG_PPC64 |
| hard_irq_disable(); |
| #endif |
| |
| } |
| |
| void restore_processor_state(void) |
| { |
| #ifdef CONFIG_PPC32 |
| switch_mmu_context(NULL, current->active_mm); |
| #endif |
| } |