Re: [PATCH v4 2/2] irqchip/apple-aic: Add support for A7-A11 SoCs

[Konrad Dybcio]

On 8.10.2022 01:17, Marc Zyngier wrote:
> On 2022-10-07 21:00, Konrad Dybcio wrote:
>> Add support for A7-A11 SoCs by if-ing out some features only present
>> on A11 & newer (implementation-defined IPI & UNCORE registers).
>>
>> Also, annotate IPI regs support in the aic struct so that the driver
>> can tell whether the SoC supports these, as they are written to,
>> even if fast IPI is disabled. This in turn causes a crash on older
>> platforms, as the implemention-defined registers either do
>> something else or are not supposed to be touched - definitely not a
>> NOP though.
>>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxx>
>> ---
>> Changes since v3:
>> - Replace use_fast_ipi with has_uncore_ipi_regs in aic_init_cpu
>> (logic error, this was written to regardless of FIPI usage before,
>> but touching Sn_... regs on SoCs that don't explicitly use them for
>> IPIs makes them sepuku..)
>> - Drop A11 compatible
>>
>>  drivers/irqchip/irq-apple-aic.c | 47 ++++++++++++++++++++++-----------
>>  1 file changed, 32 insertions(+), 15 deletions(-)
> 
> Since you cannot be bothered to read the review comments on
> the previous versions of this series, I'll do the same with
> these patches. Feel free to stop Cc-ing me.
> 
>         M.
I'm sorry, I'm working on a lot of stuff right now and I was almost sure
your email only concerned adding a cover letter and affirming the discussion
on the fallback compatible, so I did not go through it again - but that was
obviously incorrect. If you don't mind, I can respin another version of this
patchset, addressing your comments.

Konrad