Getting screen coordinate of a window

[Michael Grunditz]

In message <ZbDsJr8E5U+juaf7 at genode-labs.com>
          Stefan Kalkowski <stefan.kalkowski at genode-labs.com> wrote:

>

> So that is the software architectural limitation right now.
> Technically it should be no problem at all to route your interrupt to
> CPU 1. One way to achieve this within an Genode-only system without
> changing the IRQ service would be, to use the affinity of the caller
> to set the CPU target. But if I remember correctly you want to route
> the interrupt to a different core, which is managed by RISC OS. So in
> that case you could either use a hack (just hardcode it for the
> designated interrupts), or in the longer run the IRQ session gets
> equipped with a way to express the affinity explicitely. The latter
> solution however is nothing I would pledge to do overhasty. However,
> we have to re-think the quite simple form of the IRQ session in the
> midterm future anyway, because of other limitations, and we shall keep
> your use-case in the back of our heads therefore.

Replying from better client , thanks.

> For an instant hack, you might have a look at file:
>   repos/base-hw/src/bootstrap/spec/arm/gicv3.cc
> where the affinity routing of all interupts is initialized now. The
> interesting register is `Distributor::Irouter` (line 53 in my
> version).

If I understand it right by reading real world example ( freertos/m4/imx8) 
it seems like MU should be set up using boot core. The manual doesn't 
mention this. I have tried to change in 
repos/base-hw/src/bootstrap/spec/arm/gicv3.cc

In the loop that sets cpu .. how can I make it interrupting all cpus? I 
have tried this _irqdistr.write<Distributor::Irouter>(1U<<31, i); or by 
adding a bitfield struct i Irouter.

Michael