OPT_COMB_REVSUBTRACT 4164 drivers/gpu/drm/amd/include/asic_reg/gca/gfx_8_1_enum.h 	OPT_COMB_REVSUBTRACT                             = 0x5,
OPT_COMB_REVSUBTRACT 16264 drivers/gpu/drm/amd/include/navi10_enum.h OPT_COMB_REVSUBTRACT                     = 0x00000005,
OPT_COMB_REVSUBTRACT 19486 drivers/gpu/drm/amd/include/vega10_enum.h OPT_COMB_REVSUBTRACT                     = 0x00000005,