CB_DEBUG_BUS_15__RB_BUSY_MASK  782 drivers/gpu/drm/amd/include/asic_reg/gca/gfx_6_0_sh_mask.h #define CB_DEBUG_BUS_15__RB_BUSY_MASK 0x00000020L
CB_DEBUG_BUS_15__RB_BUSY_MASK  941 drivers/gpu/drm/amd/include/asic_reg/gca/gfx_7_2_sh_mask.h #define CB_DEBUG_BUS_15__RB_BUSY_MASK 0x20