PA_SC_MULTI_CHIP_CNTL  405 drivers/gpu/drm/radeon/r600d.h #define	PA_SC_MULTI_CHIP_CNTL				0x8B20
PA_SC_MULTI_CHIP_CNTL  497 drivers/gpu/drm/radeon/rv770d.h #define	PA_SC_MULTI_CHIP_CNTL				0x8B20