Thread (40 messages) 40 messages, 7 authors, 2021-12-09

Re: [PATCH 5/7] thermal: intel: hfi: Enable notification interrupt

From: Peter Zijlstra <peterz@infradead.org>
Date: 2021-11-08 09:01:18
Also in: linux-pm, lkml

On Fri, Nov 05, 2021 at 06:33:10PM -0700, Ricardo Neri wrote:
+	/*
+	 * On most systems, all CPUs in the package receive a package-level
+	 * thermal interrupt when there is an HFI update. Since they all are
+	 * dealing with the same update (as indicated by the update timestamp),
+	 * it is sufficient to let a single CPU to acknowledge the update and
+	 * schedule work to process it.
+	 */
That's pretty crap hardware behaviour. Is there really no way to steer
these interrupts?
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