drm/i915/fbc: Reallocate cfb if we need more of it

The code assumes we can omit the cfb allocation once fbc
has been enabled once. That's nonsense. Let's try to
reallocate it if we need to.

The code is still a mess, but maybe this is enough to get
fbc going in some cases where it initially underallocates
the cfb and there's no full modeset to fix it up.

Cc: Daniel Drake <[email protected]>
Cc: Paulo Zanoni <[email protected]>
Cc: Jian-Hong Pan <[email protected]>
Cc: Maarten Lankhorst <[email protected]>
Signed-off-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Tested-by: Daniel Drake <[email protected]>
Reviewed-by: Maarten Lankhorst <[email protected]>

0 files changed, 0 insertions, 0 deletions