[src/trunk]: src/sys/external/bsd/dwc2 Add a missing usb_syncmem(... BUS_DMAS...

[skrll <skrll%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ff9810c4818e
branches:  trunk
changeset: 349293:ff9810c4818e
user:      skrll <skrll%NetBSD.org@localhost>
date:      Sun Dec 04 16:59:49 2016 +0000

description:
Add a missing usb_syncmem(... BUS_DMASYNC_PRE{READ,WRITE}) for the
transfer buffer

diffstat:

 sys/external/bsd/dwc2/dwc2.c |  8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diffs (29 lines):

diff -r 08d725747520 -r ff9810c4818e sys/external/bsd/dwc2/dwc2.c
--- a/sys/external/bsd/dwc2/dwc2.c      Sun Dec 04 16:40:43 2016 +0000
+++ b/sys/external/bsd/dwc2/dwc2.c      Sun Dec 04 16:59:49 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: dwc2.c,v 1.44 2016/08/14 14:42:22 skrll Exp $  */
+/*     $NetBSD: dwc2.c,v 1.45 2016/12/04 16:59:49 skrll Exp $  */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: dwc2.c,v 1.44 2016/08/14 14:42:22 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: dwc2.c,v 1.45 2016/12/04 16:59:49 skrll Exp $");
 
 #include "opt_usb.h"
 
@@ -1012,6 +1012,10 @@
                dwc2_urb->usbdma = &xfer->ux_dmabuf;
                dwc2_urb->buf = KERNADDR(dwc2_urb->usbdma, 0);
                dwc2_urb->dma = DMAADDR(dwc2_urb->usbdma, 0);
+
+               usb_syncmem(&xfer->ux_dmabuf, 0, len,
+                   dir == UE_DIR_IN ?
+                       BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
        }
        dwc2_urb->length = len;
        dwc2_urb->flags = flags;