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Subject[PATCH V6 0/2] genirq: arm64: perf: support for percpu pmu interrupt
This patch series adds support to handle interrupt registration/deregistration
in arm64 pmu driver when pmu interrupt type is percpu.

* In arm64 pmu driver: Use macro 'IRQ_TYPE_NONE' while passing irq type value
to enable_percpu_irq(). Change 'irqs' etc variables as unsigned, modify the
check for 'irqs' inside armpmu_[release/reserve]_hardware().

* In irqdesc.h: Added Chris Smith's sign-off.
In arm64 pmu driver: Handle the invalid irq-0 case for platform_get_irq().

* In arm64 pmu driver: Avoid using irq_to_desc() to check validity of irq.

* Remove validity check for 'desc' from accessor function in irqdesc.h .
Instead, check the irq 'desc' validity in arm64 pmu driver.

* To determine whether an IRQ is percpu or not, added an accessor function in
irqdesc.h . This approach was used by Chris Smith here[1] for similar changes
in arm pmu driver.
* In arm64 pmu driver: Got rid of unnecessary pointer typecastings.


Vinayak Kale (2):
genirq: Add an accessor for IRQ_PER_CPU flag
arm64: perf: add support for percpu pmu interrupt

arch/arm64/kernel/perf_event.c | 116 +++++++++++++++++++++++++++++-----------
include/linux/irqdesc.h | 8 +++
2 files changed, 94 insertions(+), 30 deletions(-)


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