[deliverable/linux.git] / arch / sparc / prom / segment.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);
}
Commit	Line	Data
88278ca2	1	/*
1da177e4 LT	2	* segment.c: Prom routine to map segments in other contexts before
	3	* a standalone is completely mapped. This is for sun4 and
	4	* sun4c architectures only.
	5	*
	6	* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
	7	*/
	8
	9	#include <linux/types.h>
	10	#include <linux/kernel.h>
	11	#include <linux/sched.h>
	12	#include <asm/openprom.h>
	13	#include <asm/oplib.h>
	14
	15	extern void restore_current(void);
	16
	17	/* Set physical segment 'segment' at virtual address 'vaddr' in
	18	* context 'ctx'.
	19	*/
	20	void
	21	prom_putsegment(int ctx, unsigned long vaddr, int segment)
	22	{
	23	unsigned long flags;
	24	spin_lock_irqsave(&prom_lock, flags);
	25	((romvec->pv_setctxt))(ctx, (char ) vaddr, segment);
	26	restore_current();
	27	spin_unlock_irqrestore(&prom_lock, flags);
1da177e4	28	}