/* * 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