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| author | Jarkko Sakkinen <jarkko.sakkinen@intel.com> | 2012-05-08 21:22:29 +0300 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-05-08 11:46:05 -0700 |
| commit | c9b77ccb52a5c77233b0e557b7d4417b00ef4012 (patch) | |
| tree | 152d1c9b60796db21458583a76b57f995c4cd3bf /arch/x86/realmode/rm/wakeup/wakeup.h | |
| parent | 48927bbb97c7d4cf343c05827ab9ac30c60678cb (diff) | |
| download | talos-obmc-linux-c9b77ccb52a5c77233b0e557b7d4417b00ef4012.tar.gz talos-obmc-linux-c9b77ccb52a5c77233b0e557b7d4417b00ef4012.zip | |
x86, realmode: Move ACPI wakeup to unified realmode code
Migrated ACPI wakeup code to the real-mode blob.
Code existing in .x86_trampoline can be completely
removed. Static descriptor table in wakeup_asm.S is
courtesy of H. Peter Anvin.
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
Link: http://lkml.kernel.org/r/1336501366-28617-7-git-send-email-jarkko.sakkinen@intel.com
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/realmode/rm/wakeup/wakeup.h')
| -rw-r--r-- | arch/x86/realmode/rm/wakeup/wakeup.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/x86/realmode/rm/wakeup/wakeup.h b/arch/x86/realmode/rm/wakeup/wakeup.h new file mode 100644 index 000000000000..2dfaf06b8af1 --- /dev/null +++ b/arch/x86/realmode/rm/wakeup/wakeup.h @@ -0,0 +1,41 @@ +/* + * Definitions for the wakeup data structure at the head of the + * wakeup code. + */ + +#ifndef ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H +#define ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H + +#ifndef __ASSEMBLY__ +#include <linux/types.h> + +/* This must match data at wakeup.S */ +struct wakeup_header { + u16 video_mode; /* Video mode number */ + u32 pmode_entry; /* Protected mode resume point, 32-bit only */ + u16 pmode_cs; + u32 pmode_cr0; /* Protected mode cr0 */ + u32 pmode_cr3; /* Protected mode cr3 */ + u32 pmode_cr4; /* Protected mode cr4 */ + u32 pmode_efer_low; /* Protected mode EFER */ + u32 pmode_efer_high; + u64 pmode_gdt; + u32 pmode_misc_en_low; /* Protected mode MISC_ENABLE */ + u32 pmode_misc_en_high; + u32 pmode_behavior; /* Wakeup routine behavior flags */ + u32 realmode_flags; + u32 real_magic; + u32 signature; /* To check we have correct structure */ +} __attribute__((__packed__)); + +extern struct wakeup_header wakeup_header; +#endif + +#define WAKEUP_HEADER_OFFSET 8 +#define WAKEUP_HEADER_SIGNATURE 0x51ee1111 +#define WAKEUP_END_SIGNATURE 0x65a22c82 + +/* Wakeup behavior bits */ +#define WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE 0 + +#endif /* ARCH_X86_KERNEL_ACPI_RM_WAKEUP_H */ |
