Re: [PATCH v6 0/7] arm_pmu: Use NMI for perf interrupt
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From: Will Deacon <will@kernel.org>
Date: 2020-09-21 13:59:59
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On Wed, Aug 19, 2020 at 02:34:12PM +0100, Alexandru Elisei wrote:
The series makes the arm_pmu driver use NMIs for the perf interrupt when NMIs are available on the platform (currently, only arm64 + GICv3). To make it easier to play with the patches, I've pushed a branch at [1]:
This mostly looks good to me, but see some of the comments I left on the code. One other thing I'm not sure about is whether or not we should tell userspace that we're using an NMI for the sampling. Do any other architectures have a conditional NMI? Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel