]> Git Repo - linux.git/commit
drm/i915/fbc: Skip nuke when flip is pending
authorVille Syrjälä <[email protected]>
Tue, 15 Mar 2022 13:59:57 +0000 (15:59 +0200)
committerVille Syrjälä <[email protected]>
Wed, 13 Apr 2022 14:17:31 +0000 (17:17 +0300)
commitde5bd083d247cfcc0c21524366b473967fef7031
treeef7e5e2e936b49b9768ea2448167c00bc6ed8478
parent529b43dfcd267f2773116611f2ce9cc755be986b
drm/i915/fbc: Skip nuke when flip is pending

Don't issue a nuke from frontbuffer flush while a flip is pending.
This avoids the DSPADDR/DSPSURF rmw abuse from the pre-snb nuke
from racing with the DSPADDR/DSPSURF write being performed by
the flip/plane update. The flip itself will already cause the nuke
so a double nuke is redundant.

Signed-off-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Reviewed-by: Mika Kahola <[email protected]>
drivers/gpu/drm/i915/display/intel_fbc.c
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