1349ea08e8
Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Signed-off-by: David S. Miller <davem@davemloft.net>
29 lines
753 B
C
29 lines
753 B
C
/*
|
|
* segment.c: Prom routine to map segments in other contexts before
|
|
* a standalone is completely mapped. This is for sun4 and
|
|
* sun4c architectures only.
|
|
*
|
|
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
|
|
*/
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/sched.h>
|
|
#include <asm/openprom.h>
|
|
#include <asm/oplib.h>
|
|
|
|
extern void restore_current(void);
|
|
|
|
/* Set physical segment 'segment' at virtual address 'vaddr' in
|
|
* context 'ctx'.
|
|
*/
|
|
void
|
|
prom_putsegment(int ctx, unsigned long vaddr, int segment)
|
|
{
|
|
unsigned long flags;
|
|
spin_lock_irqsave(&prom_lock, flags);
|
|
(*(romvec->pv_setctxt))(ctx, (char *) vaddr, segment);
|
|
restore_current();
|
|
spin_unlock_irqrestore(&prom_lock, flags);
|
|
}
|