1992/1013/pc/dma.c (diff list | history)

1992/0711/sys/src/9/pc/dma.c:105,111 – 1992/1013/sys/src/9/pc/dma.c:105,112 (short | long | prev | next)
1991/0803		* allocate a page for the DMA. */ pa = ((ulong)va) & ~KZERO; if(!isphys(va) || (pa&0xFFFF0000)!=((pa+len)&0xFFFF0000)){
1992/1013		if((((ulong)va)&0xF0000000) != KZERO || (pa&0xFFFF0000) != ((pa+len)&0xFFFF0000)){
1991/0925		if(xp->pg == 0) xp->pg = newpage(1, 0, 0);
1991/0803		if(len > BY2PG)