drm/nv50-/kms: reject attempts at flipping to incompatible framebuffer

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Looks like a userspace bug can trigger this somehow during a mode
switch, causing: EVO complaint -> semaphores get out of sync ->
entire display stalled.

We likely want to be even stricter than this (or at least deal
better if EVO rejects our request), but I'll save that for the
drm_plane/atomic conversion and just fix the bug that I already
know can be triggered.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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Ben Skeggs 2014-12-22 19:50:23 +10:00

parent 0ea5fe8a83

commit 9ba8310647

1 changed files with 4 additions and 0 deletions

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drivers/gpu/drm/nouveau/nv50_display.c

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