tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright 2001-2002 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
9static inline int arch_prepare_suspend(void) { return 0; }
10
11/* image of the saved processor state */
12struct saved_context {
13 u16 es, fs, gs, ss;
14 unsigned long cr0, cr2, cr3, cr4;
15 struct Xgt_desc_struct gdt;
16 struct Xgt_desc_struct idt;
17 u16 ldt;
18 u16 tss;
19 unsigned long tr;
20 unsigned long safety;
21 unsigned long return_address;
22} __attribute__((packed));
23
24#ifdef CONFIG_ACPI
25extern unsigned long saved_eip;
26extern unsigned long saved_esp;
27extern unsigned long saved_ebp;
28extern unsigned long saved_ebx;
29extern unsigned long saved_esi;
30extern unsigned long saved_edi;
31
32static inline void acpi_save_register_state(unsigned long return_point)
33{
34 saved_eip = return_point;
35 asm volatile ("movl %%esp,%0" : "=m" (saved_esp));
36 asm volatile ("movl %%ebp,%0" : "=m" (saved_ebp));
37 asm volatile ("movl %%ebx,%0" : "=m" (saved_ebx));
38 asm volatile ("movl %%edi,%0" : "=m" (saved_edi));
39 asm volatile ("movl %%esi,%0" : "=m" (saved_esi));
40}
41
42#define acpi_restore_register_state() do {} while (0)
43
44/* routines for saving/restoring kernel state */
45extern int acpi_save_state_mem(void);
46#endif