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); | |
28 | return; | |
29 | } |