d1ee433539
Use the unified trampoline allocation setup to allocate and install the ACPI wakeup code in low memory. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> LKML-Reference: <4D5DFBE4.7090104@intel.com> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Matthieu Castet <castet.matthieu@free.fr> Cc: Stephen Rothwell <sfr@canb.auug.org.au>
40 lines
1 KiB
C
40 lines
1 KiB
C
#ifndef _ASM_X86_TRAMPOLINE_H
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#define _ASM_X86_TRAMPOLINE_H
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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#include <asm/io.h>
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/*
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* Trampoline 80x86 program as an array. These are in the init rodata
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* segment, but that's okay, because we only care about the relative
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* addresses of the symbols.
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*/
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extern const unsigned char x86_trampoline_start [];
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extern const unsigned char x86_trampoline_end [];
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extern unsigned char *x86_trampoline_base;
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extern unsigned long init_rsp;
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extern unsigned long initial_code;
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extern unsigned long initial_gs;
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extern void __init setup_trampolines(void);
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extern const unsigned char trampoline_data[];
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extern const unsigned char trampoline_status[];
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#define TRAMPOLINE_SYM(x) \
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((void *)(x86_trampoline_base + \
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((const unsigned char *)(x) - x86_trampoline_start)))
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/* Address of the SMP trampoline */
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static inline unsigned long trampoline_address(void)
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{
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return virt_to_phys(TRAMPOLINE_SYM(trampoline_data));
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}
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#endif /* __ASSEMBLY__ */
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#endif /* _ASM_X86_TRAMPOLINE_H */
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