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1 | /* |
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 | } |
29 |
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od-2011-09-18
v2.6.34-rc5
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