Commit 9b216b0e authored Nov 5, 2016 by Yabin Cui

perf:arm64: fix lockdep warning when handling CPU_STARTING.

When hanlding CPU_STARTING event, cpu_pmu_notify() calls
platform_get_irq()->of_irq_get()->irq_find_matching_host()
->mutex_lock(). To avoid sleeping when handling CPU_STARTING
event, cache percpu_irq number in struct arm_pmu.

Bug: 32646661
Change-Id: I2c40013ab5cc7549e8ec1ab38eea493845a45c09

parent 1294041d

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