Ipipe-Patch for kernel version 5.4.23
ralf.moder at hbkworld.com
Tue Mar 3 15:23:39 CET 2020
Am 03.03.20 um 14:53 schrieb Greg Gallagher:
On Tue, Mar 3, 2020 at 8:46 AM Ralf Moder <ralf.moder at hbkworld.com<mailto:ralf.moder at hbkworld.com>> wrote:
Am 02.03.20 um 17:01 schrieb Jan Kiszka:
> On 02.03.20 16:17, Greg Gallagher wrote:
>> On Mon, Mar 2, 2020 at 7:38 AM Jan Kiszka via Xenomai
>> <xenomai at xenomai.org<mailto:xenomai at xenomai.org> <mailto:xenomai at xenomai.org<mailto:xenomai at xenomai.org>>> wrote:
>> On 02.03.20 11:00, Ralf Moder via Xenomai wrote:
>> > Hello everyone,
>> > I need the kernel version 5.4.23 in an embedded linux project
>> because of driver stuff but also the Xenomai extension. How big is
>> the probability that an I-pipe patch for the 5.4 version will be
>> released in the next 2 to 3 months?
>> I would first of all say that it's >0. But beyond that, it
>> depends on
>> the architecture: x86 should be available on 5.4 in the next months
>> a probability >>50% as that will be my primary target for looking
>> how to move forward. ARM and ARM64 currently lacks a maintainer.
>> If we
>> are lucky, the base enabling via Philippe's dovetail queue will
>> those more or less as well. But it will definitely take someone
>> to take
>> responsibility for those archs because my colleagues and I currently
>> cannot invest beyond integrating contributions. There is also ppc32
>> (which has a maintainer), but I suppose that this is not your
>> -- Siemens AG, Corporate Technology, CT RDA IOT SES-DE
>> Corporate Competence Center Embedded Linux
>> If you need this for arm I was going to try to port the ipipe to 5.4
>> in the near future. Effort wise it shouldn't be too bad, but it all
>> depends on how much the upstream changes impact us. What board are
>> you targeting?
it is a SoC from xilinx with 2 arm cortex a53 kernel on it
This is an ultrascale? I’ve run the current ipipe code (4.19) on the ultra96 without issue.
You are right. It is a Xilinx UltraScale+ ZU2CG. For some reasons we need the 5.4 kernel version on this board.
> I suppose that questions addresses Ralf (provided he runs on ARM).
> As mentioned before, our tiny test lab currently contains for ARM a
> BeagleBone Black and QEMU instance.
The ESPRESSObin from marvell could be a good eval board for testing .If
you need it we can send you one. Or we can test new patches here in our
>> Jan, I can help out maintaining the ARM ipipe. We can talk offline
>> if you'd like.
It would be great if you could keep us up to date on your progress in
patching kernel version 5.4. If we can support you in any way, let us know.
> That would be great, looking forward!
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