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lib
librte_eal
common
include
generic
rte_cycles.h
Go to the documentation of this file.
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2010-2014 Intel Corporation.
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* Copyright(c) 2013 6WIND S.A.
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*/
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#ifndef _RTE_CYCLES_H_
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#define _RTE_CYCLES_H_
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#include <stdint.h>
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#include <rte_compat.h>
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#include <
rte_debug.h
>
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#include <
rte_atomic.h
>
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#define MS_PER_S 1000
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#define US_PER_S 1000000
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#define NS_PER_S 1000000000
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enum
timer_source {
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EAL_TIMER_TSC = 0,
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EAL_TIMER_HPET
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};
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extern
enum
timer_source eal_timer_source;
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uint64_t
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rte_get_tsc_hz
(
void
);
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static
inline
uint64_t
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rte_get_tsc_cycles
(
void
);
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#ifdef RTE_LIBEAL_USE_HPET
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uint64_t
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rte_get_hpet_cycles(
void
);
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uint64_t
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rte_get_hpet_hz(
void
);
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int
rte_eal_hpet_init(
int
make_default);
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#endif
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static
inline
uint64_t
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rte_get_timer_cycles
(
void
)
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{
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#ifdef RTE_LIBEAL_USE_HPET
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switch
(eal_timer_source) {
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case
EAL_TIMER_TSC:
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#endif
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return
rte_get_tsc_cycles
();
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#ifdef RTE_LIBEAL_USE_HPET
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case
EAL_TIMER_HPET:
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return
rte_get_hpet_cycles();
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default
:
rte_panic
(
"Invalid timer source specified\n"
);
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}
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#endif
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}
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static
inline
uint64_t
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rte_get_timer_hz
(
void
)
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{
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#ifdef RTE_LIBEAL_USE_HPET
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switch
(eal_timer_source) {
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case
EAL_TIMER_TSC:
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#endif
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return
rte_get_tsc_hz
();
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#ifdef RTE_LIBEAL_USE_HPET
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case
EAL_TIMER_HPET:
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return
rte_get_hpet_hz();
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default
:
rte_panic
(
"Invalid timer source specified\n"
);
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}
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#endif
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}
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extern
void
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(*rte_delay_us)(
unsigned
int
us);
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static
inline
void
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rte_delay_ms
(
unsigned
ms)
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{
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rte_delay_us
(ms * 1000);
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}
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void
rte_delay_us_block
(
unsigned
int
us);
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void
__rte_experimental
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rte_delay_us_sleep
(
unsigned
int
us);
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void
rte_delay_us_callback_register
(
void
(*userfunc)(
unsigned
int
));
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#endif
/* _RTE_CYCLES_H_ */
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