DMAMODE_READ
(char *)end - (char *)start, NULL, DMAMODE_READ | DMAMODE_LOOP,
DMAMODE_READ | DMAMODE_LOOP, BUS_DMA_NOWAIT);
read = bp->b_flags & B_READ ? DMAMODE_READ : DMAMODE_WRITE;
read = bp->b_flags & B_READ ? DMAMODE_READ : DMAMODE_WRITE;
NULL, DMAMODE_READ, BUS_DMA_NOWAIT);
if (flags & DMAMODE_READ) {
(char *)start, NULL, DMAMODE_READ | DMAMODE_LOOP, BUS_DMA_NOWAIT);
(read ? DMAMODE_READ : DMAMODE_WRITE),