Module Name: src
Committed By: riz
Date: Fri Apr 6 17:28:04 UTC 2012
Modified Files:
src/sys/arch/landisk/landisk [netbsd-6]: bus_dma.c
Log Message:
Pull up following revision(s) (requested by tsutsui in ticket #160):
sys/arch/landisk/landisk/bus_dma.c: revision 1.15
Don't call sh_dcache_inv_range() on BUS_DMASYNC_POSTREAD ops
as other mips and arm ports.
All cached data is cared on BUS_DMASYNC_PREREAD and
invalidating cache without writeback could cause unexpected
data loss if specified sync region is not cacheline aligned.
This may fix "ffs_alloccg: map corrupted" panic on acardide IDE disks,
which didn't happen on USB HDD.
To generate a diff of this commit:
cvs rdiff -u -r1.14 -r1.14.8.1 src/sys/arch/landisk/landisk/bus_dma.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/landisk/landisk/bus_dma.c
diff -u src/sys/arch/landisk/landisk/bus_dma.c:1.14 src/sys/arch/landisk/landisk/bus_dma.c:1.14.8.1
--- src/sys/arch/landisk/landisk/bus_dma.c:1.14 Fri Jul 1 19:12:53 2011
+++ src/sys/arch/landisk/landisk/bus_dma.c Fri Apr 6 17:28:04 2012
@@ -1,4 +1,4 @@
-/* $NetBSD: bus_dma.c,v 1.14 2011/07/01 19:12:53 dyoung Exp $ */
+/* $NetBSD: bus_dma.c,v 1.14.8.1 2012/04/06 17:28:04 riz Exp $ */
/*
* Copyright (c) 2005 NONAKA Kimihiro
@@ -26,7 +26,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: bus_dma.c,v 1.14 2011/07/01 19:12:53 dyoung Exp $");
+__KERNEL_RCSID(0, "$NetBSD: bus_dma.c,v 1.14.8.1 2012/04/06 17:28:04 riz Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -545,11 +545,6 @@ _bus_dmamap_sync(bus_dma_tag_t t, bus_dm
if (SH_HAS_WRITEBACK_CACHE)
sh_dcache_wb_range(naddr, minlen);
break;
-
- case BUS_DMASYNC_POSTREAD:
- case BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE:
- sh_dcache_inv_range(naddr, minlen);
- break;
}
offset = 0;
len -= minlen;
