e704f93af5
Create a module that allows udelay() to be executed to ensure that it is delaying at least as long as requested (with a little bit of error allowed). There are some configurations which don't have reliably udelay due to using a loop delay with cpufreq changes which should use a counter time based delay instead. This test aims to identify those configurations where timing is unreliable. Signed-off-by: David Riley <davidriley@chromium.org> Signed-off-by: John Stultz <john.stultz@linaro.org>
34 lines
1.1 KiB
Makefile
34 lines
1.1 KiB
Makefile
obj-y += time.o timer.o hrtimer.o itimer.o posix-timers.o posix-cpu-timers.o
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obj-y += timekeeping.o ntp.o clocksource.o jiffies.o timer_list.o
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obj-y += timeconv.o posix-clock.o alarmtimer.o
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obj-$(CONFIG_GENERIC_CLOCKEVENTS_BUILD) += clockevents.o
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obj-$(CONFIG_GENERIC_CLOCKEVENTS) += tick-common.o
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ifeq ($(CONFIG_GENERIC_CLOCKEVENTS_BROADCAST),y)
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obj-y += tick-broadcast.o
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obj-$(CONFIG_TICK_ONESHOT) += tick-broadcast-hrtimer.o
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endif
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obj-$(CONFIG_GENERIC_SCHED_CLOCK) += sched_clock.o
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obj-$(CONFIG_TICK_ONESHOT) += tick-oneshot.o
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obj-$(CONFIG_TICK_ONESHOT) += tick-sched.o
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obj-$(CONFIG_TIMER_STATS) += timer_stats.o
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obj-$(CONFIG_DEBUG_FS) += timekeeping_debug.o
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obj-$(CONFIG_TEST_UDELAY) += udelay_test.o
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$(obj)/time.o: $(obj)/timeconst.h
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quiet_cmd_hzfile = HZFILE $@
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cmd_hzfile = echo "hz=$(CONFIG_HZ)" > $@
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targets += hz.bc
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$(obj)/hz.bc: $(objtree)/include/config/hz.h FORCE
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$(call if_changed,hzfile)
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quiet_cmd_bc = BC $@
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cmd_bc = bc -q $(filter-out FORCE,$^) > $@
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targets += timeconst.h
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$(obj)/timeconst.h: $(obj)/hz.bc $(src)/timeconst.bc FORCE
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$(call if_changed,bc)
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