ARM: mmp: fix potential NULL dereference
[linux/fpc-iii.git] / arch / x86 / realmode / rm / wakeup.h
blob9317e0042f24b9f49d3e5d5eafac20424bea574d
1 /*
2 * Definitions for the wakeup data structure at the head of the
3 * wakeup code.
4 */
6 #ifndef ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H
7 #define ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H
9 #ifndef __ASSEMBLY__
10 #include <linux/types.h>
12 /* This must match data at wakeup.S */
13 struct wakeup_header {
14 u16 video_mode; /* Video mode number */
15 u32 pmode_entry; /* Protected mode resume point, 32-bit only */
16 u16 pmode_cs;
17 u32 pmode_cr0; /* Protected mode cr0 */
18 u32 pmode_cr3; /* Protected mode cr3 */
19 u32 pmode_cr4; /* Protected mode cr4 */
20 u32 pmode_efer_low; /* Protected mode EFER */
21 u32 pmode_efer_high;
22 u64 pmode_gdt;
23 u32 pmode_misc_en_low; /* Protected mode MISC_ENABLE */
24 u32 pmode_misc_en_high;
25 u32 pmode_behavior; /* Wakeup routine behavior flags */
26 u32 realmode_flags;
27 u32 real_magic;
28 u32 signature; /* To check we have correct structure */
29 } __attribute__((__packed__));
31 extern struct wakeup_header wakeup_header;
32 #endif
34 #define WAKEUP_HEADER_OFFSET 8
35 #define WAKEUP_HEADER_SIGNATURE 0x51ee1111
37 /* Wakeup behavior bits */
38 #define WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE 0
40 #endif /* ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H */