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[src/trunk]: src/sys/arch use dma channel mask from firmware
details: https://anonhg.NetBSD.org/src/rev/010fc2410d21
branches: trunk
changeset: 802369:010fc2410d21
user: jmcneill <jmcneill%NetBSD.org@localhost>
date: Fri Sep 12 15:29:30 2014 +0000
description:
use dma channel mask from firmware
diffstat:
sys/arch/arm/broadcom/bcm2835_dmac.c | 11 ++++++-----
sys/arch/evbarm/rpi/rpi_machdep.c | 9 +++++++--
2 files changed, 13 insertions(+), 7 deletions(-)
diffs (72 lines):
diff -r e7c8e3bcc76e -r 010fc2410d21 sys/arch/arm/broadcom/bcm2835_dmac.c
--- a/sys/arch/arm/broadcom/bcm2835_dmac.c Fri Sep 12 14:46:33 2014 +0000
+++ b/sys/arch/arm/broadcom/bcm2835_dmac.c Fri Sep 12 15:29:30 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: bcm2835_dmac.c,v 1.2 2014/09/07 15:21:27 jmcneill Exp $ */
+/* $NetBSD: bcm2835_dmac.c,v 1.3 2014/09/12 15:29:30 jmcneill Exp $ */
/*-
* Copyright (c) 2014 Jared D. McNeill <jmcneill%invisible.ca@localhost>
@@ -29,7 +29,7 @@
#include "opt_ddb.h"
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: bcm2835_dmac.c,v 1.2 2014/09/07 15:21:27 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: bcm2835_dmac.c,v 1.3 2014/09/12 15:29:30 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -109,6 +109,7 @@
bcm_dmac_attach(device_t parent, device_t self, void *aux)
{
struct bcm_dmac_softc *sc = device_private(self);
+ const prop_dictionary_t *cfg = device_properties(self);
struct bcm_dmac_channel *ch;
struct amba_attach_args *aaa = aux;
uint32_t val;
@@ -123,12 +124,12 @@
return;
}
- sc->sc_channelmask = BCM_DMAC_CHANNELMASK;
- sc->sc_nchannels = 31 - __builtin_clz(sc->sc_channelmask);
+ prop_dictionary_get_uint32(cfg, "chanmask", &sc->sc_channelmask);
+ sc->sc_channelmask &= BCM_DMAC_CHANNELMASK;
mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_SCHED);
- sc->sc_nchannels = 31 - __builtin_clz(BCM_DMAC_CHANNELMASK);
+ sc->sc_nchannels = 31 - __builtin_clz(sc->sc_channelmask);
sc->sc_channels = kmem_alloc(
sizeof(*sc->sc_channels) * sc->sc_nchannels, KM_SLEEP);
if (sc->sc_channels == NULL) {
diff -r e7c8e3bcc76e -r 010fc2410d21 sys/arch/evbarm/rpi/rpi_machdep.c
--- a/sys/arch/evbarm/rpi/rpi_machdep.c Fri Sep 12 14:46:33 2014 +0000
+++ b/sys/arch/evbarm/rpi/rpi_machdep.c Fri Sep 12 15:29:30 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: rpi_machdep.c,v 1.46 2014/09/07 15:28:24 skrll Exp $ */
+/* $NetBSD: rpi_machdep.c,v 1.47 2014/09/12 15:29:30 jmcneill Exp $ */
/*-
* Copyright (c) 2012 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: rpi_machdep.c,v 1.46 2014/09/07 15:28:24 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: rpi_machdep.c,v 1.47 2014/09/12 15:29:30 jmcneill Exp $");
#include "opt_evbarm_boardtype.h"
#include "opt_ddb.h"
@@ -892,6 +892,11 @@
{
prop_dictionary_t dict = device_properties(dev);
+ if (device_is_a(dev, "bcmdmac") &&
+ vcprop_tag_success_p(&vb.vbt_dmachan.tag)) {
+ prop_dictionary_set_uint32(dict,
+ "chanmask", vb.vbt_dmachan.mask);
+ }
#if NSDHC > 0
if (device_is_a(dev, "sdhc") &&
vcprop_tag_success_p(&vb.vbt_emmcclockrate.tag) &&
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