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