diff options
author | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
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committer | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
commit | fcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch) | |
tree | a57612d1888735a2ec7972891b68c1ac5ec8faea /arch/sparc/prom | |
parent | 8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff) |
Diffstat (limited to 'arch/sparc/prom')
-rw-r--r-- | arch/sparc/prom/segment.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/sparc/prom/segment.c b/arch/sparc/prom/segment.c new file mode 100644 index 00000000000..86a663f1d3c --- /dev/null +++ b/arch/sparc/prom/segment.c | |||
@@ -0,0 +1,28 @@ | |||
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 | } | ||