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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-ia64/sn/clksupport.h
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-ia64/sn/clksupport.h')
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1 files changed, 28 insertions, 0 deletions
diff --git a/include/asm-ia64/sn/clksupport.h b/include/asm-ia64/sn/clksupport.h
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1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2000-2004 Silicon Graphics, Inc. All rights reserved.
7 */
8
9/*
10 * This file contains definitions for accessing a platform supported high resolution
11 * clock. The clock is monitonically increasing and can be accessed from any node
12 * in the system. The clock is synchronized across nodes - all nodes see the
13 * same value.
14 *
15 * RTC_COUNTER_ADDR - contains the address of the counter
16 *
17 */
18
19#ifndef _ASM_IA64_SN_CLKSUPPORT_H
20#define _ASM_IA64_SN_CLKSUPPORT_H
21
22extern unsigned long sn_rtc_cycles_per_second;
23
24#define RTC_COUNTER_ADDR ((long *)LOCAL_MMR_ADDR(SH_RTC))
25
26#define rtc_time() (*RTC_COUNTER_ADDR)
27
28#endif /* _ASM_IA64_SN_CLKSUPPORT_H */