[yocto] [meta-raspberrypi] linux kernel rt

[Trevor Woerner]

On Fri, Jan 26, 2018 at 3:43 AM, Martin Hundebøll <
martin.hundeboll at prevas.dk> wrote:

>
>
> On 2018-01-26 04:51, Khem Raj wrote:
>
>>
>> Secondly, I wonder how good is upstream mainline kernel for rpi now a
>> days, we could always have a mainline recipe as an option and use it as
>> base for things like rt.
>>
>
> Apart from runtime device tree overlay support for RPi hats/extension
> boards, mainline linux fully supports each RPi revision.
>
> I guess linux-yocto-rt would be just fine...
>
>
Does anyone know if the FIQ bug has been fixed upstream? The last time I
looked into PREEMPT_RT on the RPi, the only way to make it work/stable was
to patch the FIQ issue, or disable FIQ altogether (not ideal). This patch
was outside both the kernel and the PREEMPT_RT patch.
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