EVERGREEN_GRPH_ALPHA_SEL_B 2223 drivers/gpu/drm/amd/amdgpu/sid.h #       define EVERGREEN_GRPH_ALPHA_SEL_B               3
EVERGREEN_GRPH_ALPHA_SEL_B  146 drivers/gpu/drm/radeon/evergreen_reg.h #       define EVERGREEN_GRPH_ALPHA_SEL_B               3