[src/trunk]: src/sys/arch/arm/arm32 bus_dmamap_load_raw: support coherent map...

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

details:   https://anonhg.NetBSD.org/src/rev/93822445da5d
branches:  trunk
changeset: 463487:93822445da5d
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Sat Aug 24 11:51:26 2019 +0000

description:
bus_dmamap_load_raw: support coherent mappings
bus_dmamap_sync: support syncing "raw" buffer types

diffstat:

 sys/arch/arm/arm32/bus_dma.c |  16 +++++++++-------
 1 files changed, 9 insertions(+), 7 deletions(-)

diffs (59 lines):

diff -r 6ea7dd5ca2fd -r 93822445da5d sys/arch/arm/arm32/bus_dma.c
--- a/sys/arch/arm/arm32/bus_dma.c      Sat Aug 24 11:40:37 2019 +0000
+++ b/sys/arch/arm/arm32/bus_dma.c      Sat Aug 24 11:51:26 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: bus_dma.c,v 1.115 2019/06/14 09:09:12 skrll Exp $      */
+/*     $NetBSD: bus_dma.c,v 1.116 2019/08/24 11:51:26 jmcneill Exp $   */
 
 /*-
  * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
@@ -36,7 +36,7 @@
 #include "opt_cputypes.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: bus_dma.c,v 1.115 2019/06/14 09:09:12 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: bus_dma.c,v 1.116 2019/08/24 11:51:26 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -750,8 +750,10 @@
                sgsize = MIN(ds->ds_len, size);
                if (sgsize == 0)
                        continue;
+               const bool coherent =
+                   (ds->_ds_flags & _BUS_DMAMAP_COHERENT) != 0;
                error = _bus_dmamap_load_paddr(t, map, ds->ds_addr,
-                   sgsize, false);
+                   sgsize, coherent);
                if (error != 0)
                        break;
                size -= sgsize;
@@ -766,6 +768,9 @@
        /* XXX TBD bounce */
 
        map->dm_mapsize = size0;
+       map->_dm_origbuf = NULL;
+       map->_dm_buftype = _BUS_DMA_BUFTYPE_RAW;
+       map->_dm_vmspace = NULL;
        return 0;
 }
 
@@ -1165,6 +1170,7 @@
 
        switch (buftype) {
        case _BUS_DMA_BUFTYPE_LINEAR:
+       case _BUS_DMA_BUFTYPE_RAW:
                _bus_dmamap_sync_linear(t, map, offset, len, ops);
                break;
 
@@ -1176,10 +1182,6 @@
                _bus_dmamap_sync_uio(t, map, offset, len, ops);
                break;
 
-       case _BUS_DMA_BUFTYPE_RAW:
-               panic("_bus_dmamap_sync: _BUS_DMA_BUFTYPE_RAW");
-               break;
-
        case _BUS_DMA_BUFTYPE_INVALID:
                panic("_bus_dmamap_sync: _BUS_DMA_BUFTYPE_INVALID");
                break;