30 строки
762 B
C
30 строки
762 B
C
/*
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* segment.c: Prom routine to map segments in other contexts before
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* a standalone is completely mapped. This is for sun4 and
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* sun4c architectures only.
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*
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* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <asm/openprom.h>
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#include <asm/oplib.h>
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extern void restore_current(void);
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/* Set physical segment 'segment' at virtual address 'vaddr' in
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* context 'ctx'.
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*/
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void
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prom_putsegment(int ctx, unsigned long vaddr, int segment)
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{
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unsigned long flags;
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spin_lock_irqsave(&prom_lock, flags);
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(*(romvec->pv_setctxt))(ctx, (char *) vaddr, segment);
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restore_current();
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spin_unlock_irqrestore(&prom_lock, flags);
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return;
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}
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