[PATCHv3 08/14] drivers/perf: arm_pmu: split cpu-local irq request/free

[Geert Uytterhoeven]

On Tue, Apr 18, 2017 at 7:25 PM, Geert Uytterhoeven
<geert at linux-m68k.org> wrote:
> On Tue, Apr 11, 2017 at 10:39 AM, Mark Rutland <mark.rutland at arm.com> wrote:
>> Currently we have functions to request/free all IRQs for a given PMU.
>> While this works today, this won't work for ACPI, where we don't know
>> the full set of IRQs up front, and need to request them separately.
>>
>> To enable supporting ACPI, this patch splits out the cpu-local
>> request/free into new functions, allowing us to request/free individual
>> IRQs.
>>
>> As this makes it possible/necessary to request a PPI once per cpu, an
>> additional check is added to detect mismatched PPIs. This shouldn't
>> matter for the DT / platform case, as we check this when parsing.
>>
>> Signed-off-by: Mark Rutland <mark.rutland at arm.com>
>> Tested-by: Jeremy Linton <jeremy.linton at arm.com>
>> Cc: Will Deacon <will.deacon at arm.com>
>
> This patch causes warnings during PSCI system suspend on R-Car Gen3.

Also on SH-Mobile AG5 (dual CA9).
It does not happen on R-Car M2-W (dual CA15).

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

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when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds