drm/i915/adl_p: Add ddb allocation support
On adlp the two mbuses have two display pipes and two DBUFS, Pipe A and D on Mbus1 and Pipe B and C on Mbus2. The Mbus can be joined and all the DBUFS can be used on Pipe A or B. Bspec: 49255 Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by:Vandita Kulkarni <vandita.kulkarni@intel.com> Signed-off-by:
Clinton Taylor <Clinton.A.Taylor@intel.com> Signed-off-by:
Matt Roper <matthew.d.roper@intel.com> Reviewed-by:
Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Signed-off-by:
Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210519000625.3184321-8-lucas.demarchi@intel.com
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14076e46
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