29 lines
844 B
C
29 lines
844 B
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2000-2004 Silicon Graphics, Inc. All rights reserved.
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*/
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/*
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* This file contains definitions for accessing a platform supported high resolution
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* clock. The clock is monitonically increasing and can be accessed from any node
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* in the system. The clock is synchronized across nodes - all nodes see the
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* same value.
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*
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* RTC_COUNTER_ADDR - contains the address of the counter
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*
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*/
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#ifndef _ASM_IA64_SN_CLKSUPPORT_H
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#define _ASM_IA64_SN_CLKSUPPORT_H
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extern unsigned long sn_rtc_cycles_per_second;
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#define RTC_COUNTER_ADDR ((long *)LOCAL_MMR_ADDR(SH_RTC))
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#define rtc_time() (*RTC_COUNTER_ADDR)
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#endif /* _ASM_IA64_SN_CLKSUPPORT_H */
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