| /* | |
| * 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 |