X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=drivers%2Fusb%2Fhost%2Fohci-mem.c;h=2f20d3dc895b8b4a959459573f4089e2014f27f8;hb=c20b4b69f774896623a8ad87d974982bc89af7ed;hp=d976614eebd3b33055bf8b2dd7f327187c55f43b;hpb=97d41e90fe61399b99d74820cb7f2d6e0fbac91d;p=karo-tx-linux.git diff --git a/drivers/usb/host/ohci-mem.c b/drivers/usb/host/ohci-mem.c index d976614eebd3..2f20d3dc895b 100644 --- a/drivers/usb/host/ohci-mem.c +++ b/drivers/usb/host/ohci-mem.c @@ -1,24 +1,24 @@ /* * OHCI HCD (Host Controller Driver) for USB. - * + * * (C) Copyright 1999 Roman Weissgaerber * (C) Copyright 2000-2002 David Brownell - * + * * This file is licenced under the GPL. */ /*-------------------------------------------------------------------------*/ /* - * There's basically three types of memory: + * OHCI deals with three types of memory: * - data used only by the HCD ... kmalloc is fine * - async and periodic schedules, shared by HC and HCD ... these * need to use dma_pool or dma_alloc_coherent * - driver buffers, read/written by HC ... the hcd glue or the * device driver provides us with dma addresses * - * There's also PCI "register" data, which is memory mapped. - * No memory seen by this driver is pagable. + * There's also "register" data, which is memory mapped. + * No memory seen by this driver (or any HCD) may be paged out. */ /*-------------------------------------------------------------------------*/