forked from luck/tmp_suning_uos_patched
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
|
/*
|
||
|
|
* Copyright 2001-2002 Pavel Machek <pavel@suse.cz>
|
||
|
|
* Based on code
|
||
|
|
* Copyright 2001 Patrick Mochel <mochel@osdl.org>
|
||
|
|
*/
|
||
|
|
#include <asm/desc.h>
|
||
|
|
#include <asm/i387.h>
|
||
|
|
|
||
|
|
static inline int
|
||
|
|
arch_prepare_suspend(void)
|
||
|
|
{
|
||
|
|
/* If you want to make non-PSE machine work, turn off paging
|
||
|
|
in swsusp_arch_suspend. swsusp_pg_dir should have identity mapping, so
|
||
|
|
it could work... */
|
||
|
|
if (!cpu_has_pse) {
|
||
|
|
printk(KERN_ERR "PSE is required for swsusp.\n");
|
||
|
|
return -EPERM;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* image of the saved processor state */
|
||
|
|
struct saved_context {
|
||
|
|
u16 es, fs, gs, ss;
|
||
|
|
unsigned long cr0, cr2, cr3, cr4;
|
||
|
|
u16 gdt_pad;
|
||
|
|
u16 gdt_limit;
|
||
|
|
unsigned long gdt_base;
|
||
|
|
u16 idt_pad;
|
||
|
|
u16 idt_limit;
|
||
|
|
unsigned long idt_base;
|
||
|
|
u16 ldt;
|
||
|
|
u16 tss;
|
||
|
|
unsigned long tr;
|
||
|
|
unsigned long safety;
|
||
|
|
unsigned long return_address;
|
||
|
|
} __attribute__((packed));
|
||
|
|
|
||
|
|
#ifdef CONFIG_ACPI_SLEEP
|
||
|
|
extern unsigned long saved_eip;
|
||
|
|
extern unsigned long saved_esp;
|
||
|
|
extern unsigned long saved_ebp;
|
||
|
|
extern unsigned long saved_ebx;
|
||
|
|
extern unsigned long saved_esi;
|
||
|
|
extern unsigned long saved_edi;
|
||
|
|
|
||
|
|
static inline void acpi_save_register_state(unsigned long return_point)
|
||
|
|
{
|
||
|
|
saved_eip = return_point;
|
||
|
|
asm volatile ("movl %%esp,%0" : "=m" (saved_esp));
|
||
|
|
asm volatile ("movl %%ebp,%0" : "=m" (saved_ebp));
|
||
|
|
asm volatile ("movl %%ebx,%0" : "=m" (saved_ebx));
|
||
|
|
asm volatile ("movl %%edi,%0" : "=m" (saved_edi));
|
||
|
|
asm volatile ("movl %%esi,%0" : "=m" (saved_esi));
|
||
|
|
}
|
||
|
|
|
||
|
|
#define acpi_restore_register_state() do {} while (0)
|
||
|
|
|
||
|
|
/* routines for saving/restoring kernel state */
|
||
|
|
extern int acpi_save_state_mem(void);
|
||
|
|
#endif
|