mmport_b_data_lo 1140 drivers/gpu/drm/amd/include/asic_reg/gc/gc_9_1_offset.h #define mmport_b_data_lo 0x07c4 mmport_b_data_lo 3550 drivers/gpu/drm/amd/include/asic_reg/nbio/nbio_7_0_offset.h #define mmport_b_data_lo 0x01b0