Differential D24876

Create MSI/MSI-X isrcs as needed in the GICv3 ITS driver
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Authored by andrew on May 18 2020, 12:55 PM.

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manu
mmel

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rS361258: Create MSI/MSI-X isrcs as needed in the GICv3 ITS driver

Summary

Previously we would create an isrc for each MSI/MSI-X interrupt. This
causes issues for other interrupt sources in the system, e.g. a GPIO
driver, as they may be unable to allocate interrupts. This works around
this by allocating the isrc only when needed.

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rS FreeBSD src repository - subversion

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Event Timeline

andrew created this revision.May 18 2020, 12:55 PM

Herald added a reviewer: manu. · View Herald TranscriptMay 18 2020, 12:55 PM

Herald added subscribers: loos, emaste. · View Herald Transcript

Harbormaster completed remote builds in B31146: Diff 71917.May 18 2020, 12:55 PM

andrew requested review of this revision.May 18 2020, 12:55 PM

Tested on RK3399 in FDT based environment, no problems detected.
LGTM

This revision is now accepted and ready to land.May 19 2020, 1:09 PM

Closed by commit rS361258: Create MSI/MSI-X isrcs as needed in the GICv3 ITS driver (authored by andrew). · Explain WhyMay 19 2020, 3:27 PM

This revision was automatically updated to reflect the committed changes.

andrew added a commit: rS361258: Create MSI/MSI-X isrcs as needed in the GICv3 ITS driver.

Herald added a subscriber: imp. · View Herald TranscriptMay 19 2020, 3:27 PM

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Size

head/

sys/

arm64/

arm64/

109 lines

Diff 71996

head/sys/arm64/arm64/gicv3_its.c

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