| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | */ |
| 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); |
| 28 | return; |
| 29 | } |