VM_DMA_COHERENT
if (!area || !(area->flags & VM_DMA_COHERENT))
WARN(area->flags != VM_DMA_COHERENT,
VM_DMA_COHERENT, prot);
vaddr = vmap(pages, count, VM_DMA_COHERENT, prot);
if (!area || !(area->flags & VM_DMA_COHERENT)) {
if (!(area->flags & (VM_USERMAP | VM_DMA_COHERENT)))
if (v->flags & VM_DMA_COHERENT)