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SubjectRe: [PATCH v4 05/13] irqchip: add initial support for ompic
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On Mon, Oct 30 2017 at  1:18:06 pm GMT, Stafford Horne <shorne@gmail.com> wrote:
> On Mon, Oct 30, 2017 at 02:29:18AM +0000, Marc Zyngier wrote:
>> On Mon, Oct 30 2017 at 8:11:15 am GMT, Stafford Horne <shorne@gmail.com> wrote:
>> > From: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
>> >
>> > IPI driver for the Open Multi-Processor Interrupt Controller (ompic) as
>> > described in the Multi-core support section of the OpenRISC 1.2
>> > architecture specification:
>> >
>> > https://github.com/openrisc/doc/raw/master/openrisc-arch-1.2-rev0.pdf
>> >
>> > Each OpenRISC core contains a full interrupt controller which is used in
>> > the SMP architecture for interrupt balancing. This IPI device, the
>> > ompic, is the only external device required for enabling SMP on
>> > OpenRISC.
>> >
>> > Pending ops are stored in a memory bit mask which can allow multiple
>> > pending operations to be set and serviced at a time. This is mostly
>> > borrowed from the alpha IPI implementation.
>> >
>> > Cc: Marc Zyngier <marc.zyngier@arm.com>
>> > Acked-by: Rob Herring <robh@kernel.org>
>> > Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
>> > [shorne@gmail.com: converted ops to bitmask, wrote commit message]
>> > Signed-off-by: Stafford Horne <shorne@gmail.com>
>>
>> Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
>
> Thanks
>
>> Side question: what is your merge strategy for this? I can take it
>> through the irqchip tree as it is standalone, but I'm open to other
>> suggestions.
>
> For me its easier if I just take it through the openrisc tree, as
> there are dependencies between this series and the irqchip driver.
> If you are ok with that I can make a note to Linus indicating so in
> the pull request.

No problem, that's OK with me.

> My plan is to send this series during the 4.15 merge window.

Make sure this is in -next (when it comes back to life...).

Thanks,

M.
--
Jazz is not dead. It just smells funny.

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