MDF_WRITECOMBINE
mrdesc->mr_flags = MDF_WRITECOMBINE;
#define DRM_MTRR_WC MDF_WRITECOMBINE
tdfx_info->mrdesc.mr_flags = MDF_WRITECOMBINE;
sc->mr_desc[d].mr_flags |= MDF_WRITECOMBINE;
if (desc->mr_flags &~ (MDF_WRITECOMBINE|MDF_UNCACHEABLE|MDF_FORCE))
wc = (desc->mr_flags & MDF_WRITECOMBINE) ? 1 : 0;
case MDF_WRITECOMBINE:
MDF_WRITECOMBINE,
{"write-combine", MDF_WRITECOMBINE, MDF_SETTABLE},