| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2001-2003 Pavel Machek <pavel@suse.cz> |
| 3 | * Based on code |
| 4 | * Copyright 2001 Patrick Mochel <mochel@osdl.org> |
| 5 | */ |
| 6 | #include <asm/desc.h> |
| 7 | #include <asm/i387.h> |
| 8 | |
| 9 | static inline int |
| 10 | arch_prepare_suspend(void) |
| 11 | { |
| 12 | return 0; |
| 13 | } |
| 14 | |
| 15 | /* Image of the saved processor state. If you touch this, fix acpi_wakeup.S. */ |
| 16 | struct saved_context { |
| 17 | u16 ds, es, fs, gs, ss; |
| 18 | unsigned long gs_base, gs_kernel_base, fs_base; |
| Pavel Machek | 8d783b3 | 2005-06-25 14:55:14 -0700 | [diff] [blame] | 19 | unsigned long cr0, cr2, cr3, cr4, cr8; |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | u16 gdt_pad; |
| 21 | u16 gdt_limit; |
| 22 | unsigned long gdt_base; |
| 23 | u16 idt_pad; |
| 24 | u16 idt_limit; |
| 25 | unsigned long idt_base; |
| 26 | u16 ldt; |
| 27 | u16 tss; |
| 28 | unsigned long tr; |
| 29 | unsigned long safety; |
| 30 | unsigned long return_address; |
| 31 | unsigned long eflags; |
| 32 | } __attribute__((packed)); |
| 33 | |
| 34 | /* We'll access these from assembly, so we'd better have them outside struct */ |
| 35 | extern unsigned long saved_context_eax, saved_context_ebx, saved_context_ecx, saved_context_edx; |
| 36 | extern unsigned long saved_context_esp, saved_context_ebp, saved_context_esi, saved_context_edi; |
| 37 | extern unsigned long saved_context_r08, saved_context_r09, saved_context_r10, saved_context_r11; |
| 38 | extern unsigned long saved_context_r12, saved_context_r13, saved_context_r14, saved_context_r15; |
| 39 | extern unsigned long saved_context_eflags; |
| 40 | |
| 41 | #define loaddebug(thread,register) \ |
| 42 | __asm__("movq %0,%%db" #register \ |
| 43 | : /* no output */ \ |
| 44 | :"r" ((thread)->debugreg##register)) |
| 45 | |
| 46 | extern void fix_processor_context(void); |
| 47 | |
| 48 | #ifdef CONFIG_ACPI_SLEEP |
| 49 | extern unsigned long saved_eip; |
| 50 | extern unsigned long saved_esp; |
| 51 | extern unsigned long saved_ebp; |
| 52 | extern unsigned long saved_ebx; |
| 53 | extern unsigned long saved_esi; |
| 54 | extern unsigned long saved_edi; |
| 55 | |
| 56 | /* routines for saving/restoring kernel state */ |
| 57 | extern int acpi_save_state_mem(void); |
| 58 | #endif |