CP_RB_WPTR 487 drivers/gpu/drm/radeon/evergreend.h #define CP_RB_WPTR 0xC114 CP_RB_WPTR 206 drivers/gpu/drm/radeon/r600d.h #define CP_RB_WPTR 0xC114 CP_RB_WPTR 359 drivers/gpu/drm/radeon/rv770d.h #define CP_RB_WPTR 0xC114 CP_RB_WPTR 313 include/video/radeon.h #define CP_RB_WPTR 0x0714