Re: [RESEND PATCH 1/3] hw/intc: openpic: Correct the reset value of IPIDR for FSL chipset

[Bin Meng]

On Tue, Sep 21, 2021 at 4:13 PM Philippe Mathieu-Daudé <f4bug@amsat.org> wrote:
>
> On 9/21/21 05:25, David Gibson wrote:
> > On Sat, Sep 18, 2021 at 11:26:51AM +0800, Bin Meng wrote:
> >> The reset value of IPIDR should be zero for Freescale chipset, per
> >> the following 2 manuals I checked:
> >>
> >> - P2020RM (https://www.nxp.com/webapp/Download?colCode=P2020RM)
> >> - P4080RM (https://www.nxp.com/webapp/Download?colCode=P4080RM)
> >>
> >> Currently it is set to 1, which leaves the IPI enabled on core 0
> >> after power-on reset. Such may cause unexpected interrupt to be
> >> delivered to core 0 if the IPI is triggered from core 0 to other
> >> cores later.
> >>
> >> Fixes: ffd5e9fe0276 ("openpic: Reset IRQ source private members")
> >> Resolves: https://gitlab.com/qemu-project/qemu/-/issues/584
> >> Signed-off-by: Bin Meng <bin.meng@windriver.com>
> >
> > Since these patches are very simple and look sensible, I've applied
> > them to ppc-for-6.2.
> >
> > However, you should note that Greg and I are both moving into other
> > areas and don't have much capacity for ppc maintainership any more.
> > Therefore I'll shortly be sending some MAINTAINERS updates moving
> > openpic (amongst other things) to "Orphan" status.
>
> I'm not trying to force Bin to become (yet) another maintainer,
> but from his previous contributions, he demonstrated a very good
> knowledge of embedded PowerPC ISA & chipsets, his patches have good
> quality and description, and he is consistent over time in his
> contributions. So if he is interested, I'd vouch for him as a
> maintainer for embedded ppc. Now up to him, his time and/or employer :)
>

Thanks Philippe for the offer.

David, is this the whole PowerPC domain will become un-maintained
soon, or is this just openpic and a few other things like a subset of
PowerPC?

I got extensive working experience on Freescale/AMCC PowerPC chipset
in the past, but I never touched anything on the Mac stuff with IBM
chip. And I am not sure if I have enough time to do the work :(

Regards,
Bin