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40 lines
1011 B
40 lines
1011 B
#ifndef _PPC_KEXEC_H
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#define _PPC_KEXEC_H
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#ifdef CONFIG_KEXEC
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/*
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* KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
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* I.e. Maximum page that is mapped directly into kernel memory,
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* and kmap is not required.
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*
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* Someone correct me if FIXADDR_START - PAGEOFFSET is not the correct
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* calculation for the amount of memory directly mappable into the
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* kernel memory space.
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*/
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/* Maximum physical address we can use pages from */
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#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
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/* Maximum address we can reach in physical address mode */
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#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
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/* Maximum address we can use for the control code buffer */
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#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
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#define KEXEC_CONTROL_CODE_SIZE 4096
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/* The native architecture */
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#define KEXEC_ARCH KEXEC_ARCH_PPC
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#ifndef __ASSEMBLY__
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extern void *crash_notes;
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struct kimage;
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extern void machine_kexec_simple(struct kimage *image);
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_KEXEC */
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#endif /* _PPC_KEXEC_H */
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