2d4a34c936
Make swsusp support i386 systems with PAE or without PSE. This is done by creating temporary page tables located in resume-safe page frames before the suspend image is restored in the same way as x86_64 does it. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Andi Kleen <ak@suse.de> Cc: Dave Jones <davej@redhat.com> Cc: Nigel Cunningham <ncunningham@linuxmail.org> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/*
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* Copyright 2001-2002 Pavel Machek <pavel@suse.cz>
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* Based on code
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* Copyright 2001 Patrick Mochel <mochel@osdl.org>
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*/
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#include <asm/desc.h>
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#include <asm/i387.h>
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static inline int arch_prepare_suspend(void) { return 0; }
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/* image of the saved processor state */
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struct saved_context {
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u16 es, fs, gs, ss;
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unsigned long cr0, cr2, cr3, cr4;
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u16 gdt_pad;
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u16 gdt_limit;
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unsigned long gdt_base;
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u16 idt_pad;
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u16 idt_limit;
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unsigned long idt_base;
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u16 ldt;
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u16 tss;
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unsigned long tr;
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unsigned long safety;
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unsigned long return_address;
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} __attribute__((packed));
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#ifdef CONFIG_ACPI_SLEEP
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extern unsigned long saved_eip;
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extern unsigned long saved_esp;
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extern unsigned long saved_ebp;
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extern unsigned long saved_ebx;
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extern unsigned long saved_esi;
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extern unsigned long saved_edi;
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static inline void acpi_save_register_state(unsigned long return_point)
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{
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saved_eip = return_point;
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asm volatile ("movl %%esp,%0" : "=m" (saved_esp));
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asm volatile ("movl %%ebp,%0" : "=m" (saved_ebp));
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asm volatile ("movl %%ebx,%0" : "=m" (saved_ebx));
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asm volatile ("movl %%edi,%0" : "=m" (saved_edi));
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asm volatile ("movl %%esi,%0" : "=m" (saved_esi));
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}
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#define acpi_restore_register_state() do {} while (0)
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/* routines for saving/restoring kernel state */
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extern int acpi_save_state_mem(void);
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#endif
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