[PATCH] clocksource: arch_timer: Fix code to use physical timers when requested

[Doug Anderson]

Will,

On Thu, Sep 11, 2014 at 2:57 AM, Will Deacon <will.deacon at arm.com> wrote:
> On Wed, Sep 10, 2014 at 08:50:16PM +0100, Doug Anderson wrote:
>> On Wed, Sep 10, 2014 at 11:46 AM, Will Deacon <will.deacon at arm.com> wrote:
>> > If `where we're at' is trying to boot an ARMv7 product, then you can boot in
>> > secure svc and lose virtualisation support. Looking forward to ARMv8, this
>> > isn't going to work, so I'd encourage you to start thinking about getting
>> > a working bootloader as a requirement.
>>
>> Yup, definitely on the same page now.  With everyone working on this
>> I'd imagine that there will be some nice standards worked out by the
>> time real ARMv8 is ready to ship?
>>
>> ...so would you say that you're in support of landing the patch to
>> allow physical counters?  I know Olof has Acked the patch above, but
>> it's nice if there's general agreement that it's OK.
>
> I'm in favour of fixing the regression, yes. What I didn't understand from
> the patch is where arch_timer_use_virtual is set to false for your machine,
> as we need to be careful not to regress arm64 (the vdso uses the virtual
> counter there).

See <https://patchwork.kernel.org/patch/4889311/>

-Doug