home *** CD-ROM | disk | FTP | other *** search
- /*
- * 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 do_magic. swsusp_pg_dir should have identity mapping, so
- it could work... */
- if (!cpu_has_pse)
- 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);
- extern int acpi_save_state_disk(void);
- #endif
-