Limit the number of CPUs in the gicv1/2 driver
ClosedPublic
Actions

Authored by andrew on Aug 4 2023, 3:11 PM.

Tags

None

Referenced Files

	Unknown Object (File)
	Sat, Oct 11, 4:10 AM

	Unknown Object (File)
	Sat, Oct 11, 4:10 AM

	Unknown Object (File)
	Sat, Oct 11, 4:10 AM

	Unknown Object (File)
	Fri, Oct 10, 9:09 PM

	Unknown Object (File)
	Fri, Sep 26, 12:09 PM

	Unknown Object (File)
	Sep 7 2025, 11:23 AM

	Unknown Object (File)
	Aug 8 2025, 4:04 PM

	Unknown Object (File)
	Aug 1 2025, 5:46 AM

View All 60 Files

Subscribers

imp

Details

Reviewers

emaste

Group Reviewers

ARM
arm64

Commits

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.

Diff Detail

Repository

rG FreeBSD src repository

Lint

Lint Not Applicable

Unit

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

View Options

sys/arm/arm/gic.h