tree 165b6a5c5fa21f59a9d89724ae24573d16f106f7
parent 63e07e202997ca01336ac93bf45dfd2c3a6ec512
author Vincenzo Frascino <vincenzo.frascino@arm.com> 1554119511 +0100
committer Greentime Hu <greentime@andestech.com> 1557990428 +0800

nds32: Fix vDSO clock_getres()

clock_getres in the vDSO library has to preserve the same behaviour
of posix_get_hrtimer_res().

In particular, posix_get_hrtimer_res() does:
    sec = 0;
    ns = hrtimer_resolution;
and hrtimer_resolution depends on the enablement of the high
resolution timers that can happen either at compile or at run time.

Fix the nds32 vdso implementation of clock_getres keeping a copy of
hrtimer_resolution in vdso data and using that directly.

Cc: Greentime Hu <green.hu@gmail.com>
Cc: Vincent Chen <deanbo422@gmail.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>