diff options
| -rw-r--r-- | sys/dev/usb/usb_busdma.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/dev/usb/usb_busdma.c b/sys/dev/usb/usb_busdma.c index 3769102..177b94f 100644 --- a/sys/dev/usb/usb_busdma.c +++ b/sys/dev/usb/usb_busdma.c @@ -679,6 +679,12 @@ usb_pc_cpu_invalidate(struct usb_page_cache *pc) /* nothing has been loaded into this page cache! */ return; } + + /* + * TODO: We currently do XXX_POSTREAD and XXX_PREREAD at the + * same time, but in the future we should try to isolate the + * different cases to optimise the code. --HPS + */ bus_dmamap_sync(pc->tag, pc->map, BUS_DMASYNC_POSTREAD); bus_dmamap_sync(pc->tag, pc->map, BUS_DMASYNC_PREREAD); } |
