linuxkpi: Add spin_trylock_irqsave() macro
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Authored by nc on Jun 9 2021, 6:19 PM.

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linuxkpi

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rG511bbe502e8a: linuxkpi: Add spin_trylock_irqsave() macro
rG086cfe4df8ab: linuxkpi: Add spin_trylock_irqsave() macro

Summary

This is needed by the drm-kmod 5.6 update

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rG FreeBSD src repository

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nc created this revision.Jun 9 2021, 6:19 PM

Herald added a subscriber: emaste. · View Herald TranscriptJun 9 2021, 6:19 PM

nc requested review of this revision.Jun 9 2021, 6:19 PM

Please explain what it does and why it's needed.

On Linux, spin_trylock_irqsave() is used when you want to save the IRQ before doing a trylock, however we aren't doing this as we do in spin_trylock_irq(). This is called in the i915 part of the drm-kmod 5.7 update.

nc edited the summary of this revision. (Show Details)Jul 15 2021, 12:48 AM

Looks good to me.

This revision is now accepted and ready to land.Jul 15 2021, 7:44 AM

Closed by commit rG086cfe4df8ab: linuxkpi: Add spin_trylock_irqsave() macro (authored by nc). · Explain WhyJul 15 2021, 2:54 PM

This revision was automatically updated to reflect the committed changes.

nc added a commit: rG086cfe4df8ab: linuxkpi: Add spin_trylock_irqsave() macro.

nc added a commit: rG511bbe502e8a: linuxkpi: Add spin_trylock_irqsave() macro.Jul 18 2021, 1:09 AM

Revision Contents
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Path

Size

sys/

compat/

linuxkpi/

common/

include/

linux/

spinlock.h

5 lines

Diff 90649

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sys/compat/linuxkpi/common/include/linux/spinlock.h

linuxkpi: Add spin_trylock_irqsave() macroClosedPublicActions