ia64/linux-2.6.18-xen.hg

view arch/sparc/prom/segment.c @ 0:831230e53067

Import 2.6.18 from kernel.org tarball.
author Ian Campbell <ian.campbell@xensource.com>
date Wed Apr 11 14:15:44 2007 +0100 (2007-04-11)
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1 /* $Id: segment.c,v 1.7 2000/08/26 02:38:03 anton Exp $
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 */
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>
15 extern void restore_current(void);
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);
28 return;
29 }