AGP_MODE_FW
onoff("Fast Write", rval, AGP_MODE_FW);
onoff("Fast Write", rval, AGP_MODE_FW);
#define AGP_MODE_GET_FW(x) __SHIFTOUT((x), AGP_MODE_FW)
#define AGP_MODE_SET_FW(x, v) (((x) & ~AGP_MODE_FW) \
| __SHIFTIN((v), AGP_MODE_FW))