Re: [PATCH 1/1] drivers: hv: Decouple Hyper-V clock/timer code from VMbus drivers

From: Wei Liu
Date: Mon Jul 19 2021 - 05:24:22 EST


On Tue, Jul 13, 2021 at 05:01:46PM -0700, Michael Kelley wrote:
> Hyper-V clock/timer code in hyperv_timer.c is mostly independent from
> other VMbus drivers, but building for ARM64 without hyperv_timer.c
> shows some remaining entanglements. A default implementation of
> hv_read_reference_counter can just read a Hyper-V synthetic register
> and be independent of hyperv_timer.c, so move this code out and into
> hv_common.c. Then it can be used by the timesync driver even if
> hyperv_timer.c isn't built on a particular architecture. If
> hyperv_timer.c *is* built, it can override with a faster implementation.
>
> Also provide stubs for stimer functions called by the VMbus driver when
> hyperv_timer.c isn't built.
>
> No functional changes.
>
> Signed-off-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>

Applied to hyperv-next. Thanks.