Module modifiers 

DRM format modifiers describe GPU-specific memory tiling layouts.

Constants

DRM_FORMAT_MOD_INVALID

Invalid modifier (unspecified layout)

DRM_FORMAT_MOD_LINEAR

Linear (row-major, no tiling) – universally supported

I915_FORMAT_MOD_4_TILED

Intel Tile4 (Xe/DG2+)

I915_FORMAT_MOD_X_TILED

Intel X-tiling (legacy)

I915_FORMAT_MOD_Y_TILED

Intel Y-tiling