49 строки
1.2 KiB
C
49 строки
1.2 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#ifndef OPAL_SYS_ARCH_TIMER_H
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#define OPAL_SYS_ARCH_TIMER_H 1
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typedef uint64_t opal_timer_t;
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#if OPAL_GCC_INLINE_ASSEMBLY
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static inline opal_timer_t
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opal_sys_timer_get_cycles(void)
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{
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opal_timer_t ret;
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__asm__ __volatile__("rdtsc" : "=A"(ret));
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return ret;
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}
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#define OPAL_HAVE_SYS_TIMER_GET_CYCLES 1
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#else
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opal_timer_t opal_sys_timer_get_cycles(void);
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#define OPAL_HAVE_SYS_TIMER_GET_CYCLES 1
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#endif /* OPAL_GCC_INLINE_ASSEMBLY */
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#endif /* ! OPAL_SYS_ARCH_TIMER_H */
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