EVERGREEN_GRPH_ALPHA_SEL_R 2221 drivers/gpu/drm/amd/amdgpu/sid.h #       define EVERGREEN_GRPH_ALPHA_SEL_R               1
EVERGREEN_GRPH_ALPHA_SEL_R  144 drivers/gpu/drm/radeon/evergreen_reg.h #       define EVERGREEN_GRPH_ALPHA_SEL_R               1