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drm/i915: Reorganize WM structs/unions in CRTC state
Reorganize the nested structures and unions we have for pipe watermark data in intel_crtc_state so that platform-specific data can be added in a more sensible manner (and save a bit of memory at the same time). The change basically changes the organization from: union { struct intel_pipe_wm ilk; struct intel_pipe_wm skl; } optimal; struct intel_pipe_wm intermediate /* ILK-only */ to union { struct { struct intel_pipe_wm intermediate; struct intel_pipe_wm optimal; } ilk; struct { struct intel_pipe_wm optimal; } skl; } There should be no functional change here, but it will allow us to add more platform-specific fields going forward (and more easily extend to other platform types like VLV). While we're at it, let's move the entire watermark substructure out to its own structure definition to make the code slightly more readable. Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1463061971-19638-2-git-send-email-matthew.d.roper@intel.com
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Matt Roper
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May 13, 2016
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