[PATCH v4] drm/i915: split out display register macros to a separate file

[Lucas De Marchi]

On Fri, Jun 06, 2025 at 01:22:56PM +0300, Jani Nikula wrote:
>This is a scripted split of the display related register macros from
>i915_reg.h to display/intel_display_regs.h. As a starting point, move
>all the macros that are only used in display code (or GVT). If there are
>users in core i915 code or soc/, or no users anywhere, keep the macros
>in i915_reg.h. This is done in groups of macros separated by blank
>lines, moving the comments along with the groups.
>
>Some manually picked macro groups are kept/moved regardless of the
>heuristics above.
>
>This is obviously a very crude approach. It's not perfect. But there are
>4.2k lines in i915_reg.h, and its refactoring has ground to a halt. This
>is the big hammer that splits the file to two, and enables further
>cleanup.
>
>Cc: Suraj Kandpal <suraj.kandpal at intel.com>
>Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
>Cc: Lucas De Marchi <lucas.demarchi at intel.com>
>Signed-off-by: Jani Nikula <jani.nikula at intel.com>

I skimmed over the registers and didn't spot non-display related ones.
For the code move, there are a few unrelated changes due to sorting the
includes, but that should be fine as it's easier to just sort the block.

Changes in drivers/gpu/drm/i915/display/intel_display_regs.h indeed come
verbatim from the other file, as colored by git show --color-moved.

Reviewed-by: Lucas De Marchi <lucas.demarchi at intel.com>

Let's get this in before it conflicts again.

thanks
Lucas De Marchi