[PATCH v2 00/10] arm64: Add initial support for FEAT_WFxT
Catalin Marinas
catalin.marinas at arm.com
Wed Apr 20 10:24:31 PDT 2022
On Tue, Apr 19, 2022 at 07:27:45PM +0100, Marc Zyngier wrote:
> A potential addition to this series would be to remove the event
> generation from the counters, and rely on the timeout where it
> matters (spinlocks?). Feedback welcome.
I think we still need to keep the event generation around, at least for
hardware bugs we don't know about. I don't think user-space rely on it
though, people tend to come up with weird delays like isb ;). But yes,
the WFET should be handy when it turns up in hardware.
--
Catalin
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