Limit the number of CPUs in the gicv1/2 driver
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Authored by andrew on Aug 4 2023, 3:11 PM.

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imp

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emaste

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ARM
arm64

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rGa0e20c0ded1a: Limit the number of CPUs in the gicv1/2 driver

Summary

The GICv2 can only send IPIs to 8 CPUs. Because of this it should only
be in machines with no more than 8 cores.

Create a new macro to hold this limit to reduce the size of the softc.

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Repository

rG FreeBSD src repository

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Lint Not Applicable

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Tests Not Applicable

Event Timeline

andrew created this revision.Aug 4 2023, 3:11 PM

Herald added a subscriber: imp. · View Herald TranscriptAug 4 2023, 3:11 PM

andrew requested review of this revision.Aug 4 2023, 3:11 PM

emaste accepted this revision.Aug 4 2023, 3:18 PM

This revision is now accepted and ready to land.Aug 4 2023, 3:18 PM

Closed by commit rGa0e20c0ded1a: Limit the number of CPUs in the gicv1/2 driver (authored by andrew). · Explain WhyAug 4 2023, 5:53 PM

This revision was automatically updated to reflect the committed changes.

andrew added a commit: rGa0e20c0ded1a: Limit the number of CPUs in the gicv1/2 driver.

Revision Contents
Changeset List

Path

Size

sys/

arm/

gic.h

9 lines

gic.c

19 lines

Diff 125592

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sys/arm/arm/gic.h