| 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; |
| Vivek Goyal | 3c321bc | 2007-05-02 19:27:07 +0200 | [diff] [blame] | 20 | unsigned long efer; |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | u16 gdt_pad; |
| 22 | u16 gdt_limit; |
| 23 | unsigned long gdt_base; |
| 24 | u16 idt_pad; |
| 25 | u16 idt_limit; |
| 26 | unsigned long idt_base; |
| 27 | u16 ldt; |
| 28 | u16 tss; |
| 29 | unsigned long tr; |
| 30 | unsigned long safety; |
| 31 | unsigned long return_address; |
| 32 | unsigned long eflags; |
| 33 | } __attribute__((packed)); |
| 34 | |
| 35 | /* We'll access these from assembly, so we'd better have them outside struct */ |
| 36 | extern unsigned long saved_context_eax, saved_context_ebx, saved_context_ecx, saved_context_edx; |
| 37 | extern unsigned long saved_context_esp, saved_context_ebp, saved_context_esi, saved_context_edi; |
| 38 | extern unsigned long saved_context_r08, saved_context_r09, saved_context_r10, saved_context_r11; |
| 39 | extern unsigned long saved_context_r12, saved_context_r13, saved_context_r14, saved_context_r15; |
| 40 | extern unsigned long saved_context_eflags; |
| 41 | |
| 42 | #define loaddebug(thread,register) \ |
| Jan Beulich | 2b514e7 | 2006-03-25 16:29:22 +0100 | [diff] [blame] | 43 | set_debugreg((thread)->debugreg##register, register) |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | |
| 45 | extern void fix_processor_context(void); |
| 46 | |
| Vivek Goyal | 7db681d | 2007-05-02 19:27:07 +0200 | [diff] [blame] | 47 | extern unsigned long saved_rip; |
| 48 | extern unsigned long saved_rsp; |
| 49 | extern unsigned long saved_rbp; |
| 50 | extern unsigned long saved_rbx; |
| 51 | extern unsigned long saved_rsi; |
| 52 | extern unsigned long saved_rdi; |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | |
| 54 | /* routines for saving/restoring kernel state */ |
| 55 | extern int acpi_save_state_mem(void); |