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[src/trunk]: src/sys/dev/pci disable (U)DMA for ATAPI on aceride(4), the chip...
details: https://anonhg.NetBSD.org/src/rev/8d395b76f5b6
branches: trunk
changeset: 948210:8d395b76f5b6
user: jdolecek <jdolecek%NetBSD.org@localhost>
date: Sun Dec 20 19:30:03 2020 +0000
description:
disable (U)DMA for ATAPI on aceride(4), the chip doesn't support it
PR port-sparc64/55540
diffstat:
sys/dev/pci/aceride.c | 11 +++++++++--
1 files changed, 9 insertions(+), 2 deletions(-)
diffs (32 lines):
diff -r fed63025c999 -r 8d395b76f5b6 sys/dev/pci/aceride.c
--- a/sys/dev/pci/aceride.c Sun Dec 20 19:29:06 2020 +0000
+++ b/sys/dev/pci/aceride.c Sun Dec 20 19:30:03 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: aceride.c,v 1.37 2017/07/21 21:01:13 nakayama Exp $ */
+/* $NetBSD: aceride.c,v 1.38 2020/12/20 19:30:03 jdolecek Exp $ */
/*
* Copyright (c) 1999, 2000, 2001 Manuel Bouyer.
@@ -25,7 +25,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: aceride.c,v 1.37 2017/07/21 21:01:13 nakayama Exp $");
+__KERNEL_RCSID(0, "$NetBSD: aceride.c,v 1.38 2020/12/20 19:30:03 jdolecek Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -298,6 +298,13 @@
ACER_UDMA_EN(chp->ch_channel, drive) |
ACER_UDMA_TIM(chp->ch_channel, drive, 0x7));
+ /* (U)DMA doesn't work with ATAPI devices */
+ if (drvp->drive_type == ATA_DRIVET_ATAPI) {
+ s = splbio();
+ drvp->drive_flags &= ~(ATA_DRIVE_DMA|ATA_DRIVE_UDMA);
+ splx(s);
+ }
+
/* add timing values, setup DMA if needed */
if ((drvp->drive_flags & ATA_DRIVE_DMA) == 0 &&
(drvp->drive_flags & ATA_DRIVE_UDMA) == 0) {
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