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author | Ingo Molnar <mingo@elte.hu> | 2008-10-24 12:48:46 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-10-24 12:48:46 +0200 |
commit | 8c82a17e9c924c0e9f13e75e4c2f6bca19a4b516 (patch) | |
tree | d535f46a917e14e90deccb29ad00aac016ad18dd /arch/x86/include/asm/suspend_32.h | |
parent | sched: add CONFIG_SMP consistency (diff) | |
parent | Linux 2.6.28-rc1 (diff) | |
download | linux-dev-8c82a17e9c924c0e9f13e75e4c2f6bca19a4b516.tar.xz linux-dev-8c82a17e9c924c0e9f13e75e4c2f6bca19a4b516.zip |
Merge commit 'v2.6.28-rc1' into sched/urgent
Diffstat (limited to 'arch/x86/include/asm/suspend_32.h')
-rw-r--r-- | arch/x86/include/asm/suspend_32.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/x86/include/asm/suspend_32.h b/arch/x86/include/asm/suspend_32.h new file mode 100644 index 000000000000..a5074bd0f8be --- /dev/null +++ b/arch/x86/include/asm/suspend_32.h @@ -0,0 +1,51 @@ +/* + * Copyright 2001-2002 Pavel Machek <pavel@suse.cz> + * Based on code + * Copyright 2001 Patrick Mochel <mochel@osdl.org> + */ +#ifndef _ASM_X86_SUSPEND_32_H +#define _ASM_X86_SUSPEND_32_H + +#include <asm/desc.h> +#include <asm/i387.h> + +static inline int arch_prepare_suspend(void) { return 0; } + +/* image of the saved processor state */ +struct saved_context { + u16 es, fs, gs, ss; + unsigned long cr0, cr2, cr3, cr4; + struct desc_ptr gdt; + struct desc_ptr idt; + u16 ldt; + u16 tss; + unsigned long tr; + unsigned long safety; + unsigned long return_address; +} __attribute__((packed)); + +#ifdef CONFIG_ACPI +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 + +#endif /* _ASM_X86_SUSPEND_32_H */ |