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/current.h> 14#include <asm/mmu_context.h> 15#include <asm/switch_to.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(current->active_mm, current->active_mm); 37#endif 38} 39