[src/trunk]: src/sys/arch/arm/allwinner do BUS_DMASYNC_POSTWRITE after transf...

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

details:   https://anonhg.NetBSD.org/src/rev/fd9a021d128d
branches:  trunk
changeset: 332169:fd9a021d128d
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Tue Sep 09 19:23:46 2014 +0000

description:
do BUS_DMASYNC_POSTWRITE after transfer completes

diffstat:

 sys/arch/arm/allwinner/awin_mmc.c |  12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)

diffs (40 lines):

diff -r 5e541c625547 -r fd9a021d128d sys/arch/arm/allwinner/awin_mmc.c
--- a/sys/arch/arm/allwinner/awin_mmc.c Tue Sep 09 15:14:39 2014 +0000
+++ b/sys/arch/arm/allwinner/awin_mmc.c Tue Sep 09 19:23:46 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: awin_mmc.c,v 1.7 2014/09/08 23:51:48 jmcneill Exp $ */
+/* $NetBSD: awin_mmc.c,v 1.8 2014/09/09 19:23:46 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2014 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -29,7 +29,7 @@
 #include "locators.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: awin_mmc.c,v 1.7 2014/09/08 23:51:48 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: awin_mmc.c,v 1.8 2014/09/09 19:23:46 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -631,6 +631,13 @@
 }
 
 static void
+awin_mmc_dma_complete(struct awin_mmc_softc *sc)
+{
+       bus_dmamap_sync(sc->sc_dmat, sc->sc_idma_map, 0,
+           sc->sc_idma_size, BUS_DMASYNC_POSTWRITE);
+}
+
+static void
 awin_mmc_exec_command(sdmmc_chipset_handle_t sch, struct sdmmc_command *cmd)
 {
        struct awin_mmc_softc *sc = sch;
@@ -693,6 +700,7 @@
                        cmd->c_error = cv_timedwait(&sc->sc_idst_cv,
                            &sc->sc_intr_lock, hz*10);
                }
+               awin_mmc_dma_complete(sc);
                if (sc->sc_idma_idst & AWIN_MMC_IDST_ERROR) {
                        cmd->c_error = EIO;
                } else if (!(sc->sc_idma_idst & AWIN_MMC_IDST_COMPLETE)) {