On Fri, 13 Nov 2015, Bob Paauwe wrote:
> On Fri, 13 Nov 2015 19:29:41 +0200
> Mika Kuoppala wrote:
>
>> When we set and later readback a frequency value through
>> sysfs interface, igt/pm_rpm assumes that we get same value back
>> if it matches hw granularity.
>>
>> On bxt we have found out that
On Fri, 13 Nov 2015 19:29:41 +0200
Mika Kuoppala wrote:
> When we set and later readback a frequency value through
> sysfs interface, igt/pm_rpm assumes that we get same value back
> if it matches hw granularity.
>
> On bxt we have found out that this is not always the case.
> Currently frequenc
On Fri, Nov 13, 2015 at 07:29:41PM +0200, Mika Kuoppala wrote:
> When we set and later readback a frequency value through
> sysfs interface, igt/pm_rpm assumes that we get same value back
> if it matches hw granularity.
>
> On bxt we have found out that this is not always the case.
> Currently fre
When we set and later readback a frequency value through
sysfs interface, igt/pm_rpm assumes that we get same value back
if it matches hw granularity.
On bxt we have found out that this is not always the case.
Currently frequency - hw ratio - frequency conversions round down,
with few exceptions o