| /* |
| * 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)); |
| |
| #define loaddebug(thread,register) \ |
| __asm__("movl %0,%%db" #register \ |
| : /* no output */ \ |
| :"r" ((thread)->debugreg[register])) |
| |
| #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 |
