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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-10-16 22:29:58 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2007-10-16 22:29:58 +0200
commitc223701cf6c706f42840631c1ca919a18e6e2800 (patch)
tree0ae93a4a36e874d5e1378e5e2d032a81e71350f7 /Documentation/ide.txt
parent9ff6f72f432364991d68e99cae72cb141c166e70 (diff)
downloadop-kernel-dev-c223701cf6c706f42840631c1ca919a18e6e2800.zip
op-kernel-dev-c223701cf6c706f42840631c1ca919a18e6e2800.tar.gz
ide: add "hdx=nodma" kernel parameter
* Add "hdx=nodma" option allowing user to disallow DMA for a given device. * Obsolete "ide=nodma" option. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'Documentation/ide.txt')
-rw-r--r--Documentation/ide.txt4
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/ide.txt b/Documentation/ide.txt
index c1640e3..1d50f23 100644
--- a/Documentation/ide.txt
+++ b/Documentation/ide.txt
@@ -242,6 +242,8 @@ Summary of ide driver parameters for kernel command line
and quite likely to cause trouble with
older/odd IDE drives.
+ "hdx=nodma" : disallow DMA
+
"hdx=swapdata" : when the drive is a disk, byte swap all data
"hdx=bswap" : same as above..........
@@ -286,8 +288,6 @@ Summary of ide driver parameters for kernel command line
"ide=reverse" : formerly called to pci sub-system, but now local.
- "ide=nodma" : disable DMA globally for the IDE subsystem.
-
The following are valid ONLY on ide0, which usually corresponds
to the first ATA interface found on the particular host, and the defaults for
the base,ctl ports must not be altered.
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