arm_pmu: arm64: Use NMIs for PMU

Add required PMU interrupt operations for NMIs. Request interrupt lines as
NMIs when possible, otherwise fall back to normal interrupts.

NMIs are only supported on the arm64 architecture with a GICv3 irqchip.

[Alexandru E.: Added that NMIs only work on arm64 + GICv3, print message
	when PMU is using NMIs]

Signed-off-by: Julien Thierry <[email protected]>
Signed-off-by: Alexandru Elisei <[email protected]>
Tested-by: Sumit Garg <[email protected]> (Developerbox)
Cc: Julien Thierry <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Mark Rutland <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>

0 files changed, 0 insertions, 0 deletions