drm/vc4: Fix race between page flip completion event and clean-up

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There was a small window where a userspace program could submit
a pageflip after receiving a pageflip completion event yet still
receive EBUSY.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Daniel Stone <daniels@collabora.com>

...

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Derek Foreman 2016-11-24 12:11:55 -06:00 • committed by Eric Anholt

parent c778cc5df9

commit 26fc78f6fe

3 changed files with 34 additions and 8 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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8

drivers/gpu/drm/vc4/vc4_crtc.c

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1

drivers/gpu/drm/vc4/vc4_drv.h

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33

drivers/gpu/drm/vc4/vc4_kms.c

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