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Searched refs:sched_clock (Results 1 – 25 of 35) sorted by relevance

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/linux/include/linux/sched/
H A Dclock.h15 extern u64 sched_clock(void);
22 return sched_clock(); in sched_clock_noinstr()
54 return sched_clock(); in cpu_clock()
64 return sched_clock(); in local_clock()
/linux/Documentation/timers/
H A Dtimekeeping.rst2 Clock sources, Clock events, sched_clock() and delay timers
12 architecture-specific overrides of the sched_clock() function and some
18 sched_clock() is used for scheduling and timestamping, and delay timers
108 sched_clock()
112 function in the kernel called sched_clock(). This function shall return the
114 may not provide an implementation of sched_clock() on its own. If a local
116 sched_clock().
118 As the name suggests, sched_clock() is used for scheduling the system,
123 Compared to clock sources, sched_clock() has to be very fast: it is called
126 for speed in sched_clock(). It however requires some of the same basic
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/linux/kernel/sched/
H A Dclock.c3 * sched_clock() for unstable CPU clocks
36 * The implementation either uses sched_clock() when
38 * sched_clock() is assumed to provide these properties (mostly it means
45 * - sched_clock()
48 * We use GTOD as base and use sched_clock() deltas to improve resolution. The
65 notrace unsigned long long __weak sched_clock(void) in sched_clock() function
70 EXPORT_SYMBOL_GPL(sched_clock);
86 * We want: ktime_get_ns() + __gtod_offset == sched_clock() + __sched_clock_offset
117 scd->tick_raw = sched_clock(); in __scd_stamp()
136 printk(KERN_INFO "sched_clock in __set_sched_clock_stable()
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H A Dpsi.c208 group->avg_last_update = sched_clock(); in group_init()
590 now = sched_clock(); in psi_avgs_work()
661 now = sched_clock(); in psi_rtpoll_work()
1261 now = sched_clock(); in psi_show()
1351 window_reset(&t->win, sched_clock(), in psi_trigger_create()
/linux/kernel/locking/
H A Dqspinlock_stat.h110 u64 start = sched_clock(); in __pv_kick()
114 this_cpu_add(EVENT_COUNT(pv_latency_kick), sched_clock() - start); in __pv_kick()
128 sched_clock() - *pkick_time); in __pv_wait()
H A Drwsem.c813 return sched_clock() + delta; in rwsem_rspin_threshold()
873 else if (!(++loop & 0xf) && (sched_clock() > rspin_threshold)) { in rwsem_optimistic_spin()
/linux/arch/arm/mach-omap2/
H A Dpm-debug.c60 t = sched_clock(); in pm_dbg_update_time()
180 t = sched_clock(); in pwrdms_setup()
/linux/arch/powerpc/lib/
H A Dqspinlock.c67 u64 delta = sched_clock() - seen; in recently_sleepy()
240 this_cpu_write(sleepy_lock_seen_clock, sched_clock()); in seen_sleepy_owner()
249 this_cpu_write(sleepy_lock_seen_clock, sched_clock()); in seen_sleepy_lock()
256 this_cpu_write(sleepy_lock_seen_clock, sched_clock()); in seen_sleepy_node()
/linux/arch/m68k/coldfire/
H A Ddma_timer.c77 unsigned long long sched_clock(void) in sched_clock() function
/linux/kernel/trace/
H A Dtrace_clock.c42 clock = sched_clock(); in trace_clock_local()
/linux/kernel/time/
H A DMakefile23 obj-$(CONFIG_GENERIC_SCHED_CLOCK) += sched_clock.o
H A Dsched_clock.c3 * Generic sched_clock() support, to extend low level hardware time
17 #include <linux/sched_clock.h>
24 * struct clock_data - all data needed for sched_clock() (including
29 * @read_data: Data required to read from sched_clock.
106 unsigned long long notrace sched_clock(void) in sched_clock() function
125 * sched_clock() will never observe mis-matched data even if called from
127 * steering sched_clock() to one or the other using a sequence counter.
128 * In order to preserve the data cache profile of sched_clock() as much
150 * Atomically update the sched_clock() epoch.
188 /* Cannot register a sched_clock wit in sched_clock_register()
[all...]
/linux/arch/mips/cavium-octeon/
H A Dcsrc-octeon.c114 unsigned long long notrace sched_clock(void) in sched_clock() function
/linux/sound/soc/mediatek/common/
H A Dmtk-btcvsd.c649 t1 = sched_clock(); in wait_for_bt_irq()
660 t2 = sched_clock(); in wait_for_bt_irq()
764 bt->rx->time_stamp = sched_clock(); in mtk_btcvsd_snd_read()
788 bt->tx->time_stamp = sched_clock(); in mtk_btcvsd_snd_write()
/linux/arch/microblaze/kernel/
H A Dtimer.c212 timecounter_init(&xilinx_tc, &xilinx_cc, sched_clock()); in init_xilinx_timecounter()
/linux/drivers/perf/
H A Darm_pmu.c448 start_clock = sched_clock(); in armpmu_dispatch_irq()
450 finish_clock = sched_clock(); in armpmu_dispatch_irq()
H A Driscv_pmu_sbi.c1053 u64 start_clock = sched_clock(); in pmu_sbi_ovf_handler()
1143 perf_sample_event_took(sched_clock() - start_clock); in pmu_sbi_ovf_handler()
/linux/drivers/acpi/apei/
H A Dghes.c1031 now = sched_clock(); in ghes_estatus_cached()
1066 cache->time_in = sched_clock(); in ghes_estatus_cache_alloc()
1096 now = sched_clock(); in ghes_estatus_cache_add()
/linux/arch/arm/probes/kprobes/
H A Dtest-core.c508 t0 = sched_clock(); in benchmark()
511 t = sched_clock() - t0; in benchmark()
/linux/kernel/rcu/
H A Drefscale.c765 x += sched_clock(); in ref_sched_clock_section()
777 x += sched_clock(); in ref_sched_clock_delay_section()
/linux/arch/sparc/kernel/
H A Dtime_64.c882 unsigned long long sched_clock(void) in sched_clock() function
/linux/kernel/bpf/
H A Dtrampoline.c1123 start = sched_clock(); in bpf_prog_start_time()
1172 duration = sched_clock() - start; in __update_prog_stats()
/linux/arch/x86/events/amd/
H A Dibs.c1399 u64 stamp = sched_clock(); in perf_ibs_nmi_handler()
1408 perf_sample_event_took(sched_clock() - stamp); in perf_ibs_nmi_handler()
/linux/arch/powerpc/kernel/
H A Dtime.c637 notrace unsigned long long sched_clock(void) in sched_clock() function
/linux/arch/um/kernel/
H A Dtime.c54 notrace unsigned long long sched_clock(void) in sched_clock() function

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