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
6 * Copyright (C) 2000-2004 Silicon Graphics, Inc. All rights reserved.
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
15 * RTC_COUNTER_ADDR - contains the address of the counter
19 #ifndef _ASM_IA64_SN_CLKSUPPORT_H
20 #define _ASM_IA64_SN_CLKSUPPORT_H
22 extern unsigned long sn_rtc_cycles_per_second;
24 #define RTC_COUNTER_ADDR ((long *)LOCAL_MMR_ADDR(SH_RTC))
26 #define rtc_time() (*RTC_COUNTER_ADDR)
28 #endif /* _ASM_IA64_SN_CLKSUPPORT_H */