Defined in 3 files as a macro:
- sys/external/bsd/drm/dist/shared-core/i915_reg.h, line 148 (as a macro)
- sys/external/bsd/drm2/dist/drm/i810/i810_drv.h, line 223 (as a macro)
- sys/external/bsd/drm2/dist/drm/i915/gt/intel_gpu_commands.h, line 188 (as a macro)