| Magnus Damm | 2ef7f0d | 2009-03-06 09:47:02 +0000 | [diff] [blame] | 1 | /* |
| 2 | * swsusp.c - SuperH hibernation support |
| 3 | * |
| 4 | * Copyright (C) 2009 Magnus Damm |
| 5 | * |
| 6 | * This file is subject to the terms and conditions of the GNU General Public |
| 7 | * License. See the file "COPYING" in the main directory of this archive |
| 8 | * for more details. |
| 9 | */ |
| 10 | |
| 11 | #include <linux/mm.h> |
| 12 | #include <linux/sched.h> |
| 13 | #include <linux/suspend.h> |
| 14 | #include <asm/suspend.h> |
| 15 | #include <asm/sections.h> |
| 16 | #include <asm/tlbflush.h> |
| 17 | #include <asm/page.h> |
| 18 | #include <asm/fpu.h> |
| 19 | |
| 20 | struct swsusp_arch_regs swsusp_arch_regs_cpu0; |
| 21 | |
| 22 | int pfn_is_nosave(unsigned long pfn) |
| 23 | { |
| 24 | unsigned long begin_pfn = __pa(&__nosave_begin) >> PAGE_SHIFT; |
| 25 | unsigned long end_pfn = PAGE_ALIGN(__pa(&__nosave_end)) >> PAGE_SHIFT; |
| 26 | |
| 27 | return (pfn >= begin_pfn) && (pfn < end_pfn); |
| 28 | } |
| 29 | |
| 30 | void save_processor_state(void) |
| 31 | { |
| 32 | init_fpu(current); |
| 33 | } |
| 34 | |
| 35 | void restore_processor_state(void) |
| 36 | { |
| 37 | local_flush_tlb_all(); |
| 38 | } |