[ide] add "ide=nodma" to documentation

Here's a quick patch to add the currently-undocumented ide=nodma option
to the Documentation/ide.txt file. Since the code does not mark this
option as obsolete as far as I can see, I can only assume that it should
be in the documentation
Signed-off-by: default avatarVadim Lobanov <vlobanov@speakeasy.net>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 463f7d6a
...@@ -297,6 +297,8 @@ Summary of ide driver parameters for kernel command line ...@@ -297,6 +297,8 @@ Summary of ide driver parameters for kernel command line
"ide=reverse" : formerly called to pci sub-system, but now local. "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 The following are valid ONLY on ide0, which usually corresponds
to the first ATA interface found on the particular host, and the defaults for to the first ATA interface found on the particular host, and the defaults for
the base,ctl ports must not be altered. the base,ctl ports must not be altered.
......
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