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Differential D57579

linuxkpi: Add `usleep_range_state()`
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Authored by dumbbell on Jun 14 2026, 9:20 AM.

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rGe9f21e4f28ce: linuxkpi: Add `usleep_range_state()`

Summary

It takes a task state as its last argument. We enforce that this state is TASK_UNINTERRUPTIBLE for the time being because other states are not interpreted.

Change usleep_range() to call usleep_range_state() with the state set to TASK_UNINTERRUPTIBLE, which is what Linux does too. The amdgpu DRM driver starte to use usleep_range_state() in Linux 6.13.

This is part of the update of DRM drivers to Linux 6.13.

Sponsored by: The FreeBSD Foundation

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rG FreeBSD src repository

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Event Timeline

dumbbell created this revision.Jun 14 2026, 9:20 AM

Herald added subscribers: emaste, imp. · View Herald TranscriptJun 14 2026, 9:20 AM

dumbbell requested review of this revision.Jun 14 2026, 9:20 AM

dumbbell added a child revision: D57580: linuxkpi: Add `pm_resume_via_firmware()`.Jun 14 2026, 9:30 AM

dumbbell added a parent revision: D57578: sys: Add `isgraph()` to <sys/ctype.h>.

emaste accepted this revision.Wed, Jul 8, 1:29 PM

This revision is now accepted and ready to land.Wed, Jul 8, 1:29 PM

Closed by commit rGe9f21e4f28ce: linuxkpi: Add `usleep_range_state()` (authored by dumbbell). · Explain WhyThu, Jul 9, 6:34 PM

This revision was automatically updated to reflect the committed changes.

dumbbell added a commit: rGe9f21e4f28ce: linuxkpi: Add `usleep_range_state()`.

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sys/

compat/

linuxkpi/

common/

include/

linux/

14 lines

Diff 181631

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

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