CB_DEBUG_BUS_15__RB_BUSY__SHIFT  783 drivers/gpu/drm/amd/include/asic_reg/gca/gfx_6_0_sh_mask.h #define CB_DEBUG_BUS_15__RB_BUSY__SHIFT 0x00000005
CB_DEBUG_BUS_15__RB_BUSY__SHIFT  942 drivers/gpu/drm/amd/include/asic_reg/gca/gfx_7_2_sh_mask.h #define CB_DEBUG_BUS_15__RB_BUSY__SHIFT 0x5