kernel_optimize_test/include/clocksource
Andrea Parri 0af3e137c1 clocksource/drivers/hyper-v: Untangle stimers and timesync from clocksources
hyperv_timer.c exports hyperv_cs, which is used by stimers and the
timesync mechanism.  However, the clocksource dependency is not
needed: these mechanisms only depend on the partition reference
counter (which can be read via a MSR or via the TSC Reference Page).

Introduce the (function) pointer hv_read_reference_counter, as an
embodiment of the partition reference counter read, and export it
in place of the hyperv_cs pointer.  The latter can be removed.

This should clarify that there's no relationship between Hyper-V
stimers & timesync and the Linux clocksource abstractions.  No
functional or semantic change.

Suggested-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Andrea Parri <parri.andrea@gmail.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200109160650.16150-2-parri.andrea@gmail.com
2020-01-16 19:09:02 +01:00
..
arm_arch_timer.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
hyperv_timer.h clocksource/drivers/hyper-v: Untangle stimers and timesync from clocksources 2020-01-16 19:09:02 +01:00
pxa.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
samsung_pwm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
timer-davinci.h clocksource/drivers/davinci: Add support for clockevents 2019-06-25 20:46:14 +02:00
timer-sp804.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
timer-ti-dm.h clocksource: timer-ti-dm: Make unexported functions static 2018-02-28 13:38:10 -08:00