1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Definitions for the wakeup data structure at the head of the 4*4882a593Smuzhiyun * wakeup code. 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifndef ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H 8*4882a593Smuzhiyun #define ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #ifndef __ASSEMBLY__ 11*4882a593Smuzhiyun #include <linux/types.h> 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun /* This must match data at wakeup.S */ 14*4882a593Smuzhiyun struct wakeup_header { 15*4882a593Smuzhiyun u16 video_mode; /* Video mode number */ 16*4882a593Smuzhiyun u32 pmode_entry; /* Protected mode resume point, 32-bit only */ 17*4882a593Smuzhiyun u16 pmode_cs; 18*4882a593Smuzhiyun u32 pmode_cr0; /* Protected mode cr0 */ 19*4882a593Smuzhiyun u32 pmode_cr3; /* Protected mode cr3 */ 20*4882a593Smuzhiyun u32 pmode_cr4; /* Protected mode cr4 */ 21*4882a593Smuzhiyun u32 pmode_efer_low; /* Protected mode EFER */ 22*4882a593Smuzhiyun u32 pmode_efer_high; 23*4882a593Smuzhiyun u64 pmode_gdt; 24*4882a593Smuzhiyun u32 pmode_misc_en_low; /* Protected mode MISC_ENABLE */ 25*4882a593Smuzhiyun u32 pmode_misc_en_high; 26*4882a593Smuzhiyun u32 pmode_behavior; /* Wakeup routine behavior flags */ 27*4882a593Smuzhiyun u32 realmode_flags; 28*4882a593Smuzhiyun u32 real_magic; 29*4882a593Smuzhiyun u32 signature; /* To check we have correct structure */ 30*4882a593Smuzhiyun } __attribute__((__packed__)); 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun extern struct wakeup_header wakeup_header; 33*4882a593Smuzhiyun #endif 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun #define WAKEUP_HEADER_OFFSET 8 36*4882a593Smuzhiyun #define WAKEUP_HEADER_SIGNATURE 0x51ee1111 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun /* Wakeup behavior bits */ 39*4882a593Smuzhiyun #define WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE 0 40*4882a593Smuzhiyun #define WAKEUP_BEHAVIOR_RESTORE_CR4 1 41*4882a593Smuzhiyun #define WAKEUP_BEHAVIOR_RESTORE_EFER 2 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun #endif /* ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H */ 44