OPT_COMB_SUBTRACT 4161 drivers/gpu/drm/amd/include/asic_reg/gca/gfx_8_1_enum.h OPT_COMB_SUBTRACT = 0x2, OPT_COMB_SUBTRACT 16261 drivers/gpu/drm/amd/include/navi10_enum.h OPT_COMB_SUBTRACT = 0x00000002, OPT_COMB_SUBTRACT 19483 drivers/gpu/drm/amd/include/vega10_enum.h OPT_COMB_SUBTRACT = 0x00000002,