SQ_V_SUBB_U32    3500 drivers/gpu/drm/amd/include/asic_reg/gca/gfx_7_2_enum.h #define SQ_V_SUBB_U32                             0x29
SQ_V_SUBB_U32    3878 drivers/gpu/drm/amd/include/asic_reg/gca/gfx_8_0_enum.h #define SQ_V_SUBB_U32                             0x1d
SQ_V_SUBB_U32    3898 drivers/gpu/drm/amd/include/asic_reg/gca/gfx_8_1_enum.h #define SQ_V_SUBB_U32                             0x1d