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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef OPAL_SYS_ARCH_TIMER_H
#define OPAL_SYS_ARCH_TIMER_H 1
typedef uint64_t opal_timer_t;
#if OPAL_GCC_INLINE_ASSEMBLY
#if OPAL_ASSEMBLY_ARCH == OPAL_SPARCV9_64
static inline opal_timer_t
opal_sys_timer_get_cycles(void)
{
opal_timer_t ret;
__asm__ __volatile__("rd %%tick, %0" : "=r"(ret));
return ret;
}
#else /* OPAL_SPARCV9_32 */
static inline opal_timer_t
opal_sys_timer_get_cycles(void)
{
opal_timer_t ret;
int a, b;
__asm__ __volatile__("rd %%tick, %0 \n"
"srlx %0, 32, %1 " :
"=r"(a), "=r"(b)
);
ret = (0x00000000FFFFFFFF & a) | (((opal_timer_t) b) << 32);
return ret;
}
#endif
#define OPAL_HAVE_SYS_TIMER_GET_CYCLES 1
#else
#define OPAL_HAVE_SYS_TIMER_GET_CYCLES 0
#endif /* OPAL_GCC_INLINE_ASSEMBLY */
#endif /* ! OPAL_SYS_ARCH_TIMER_H */
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