From: Alan Cox Date: Tue, 2 Oct 2007 16:38:26 +0000 (-0400) Subject: libata: Add a drivers/ide style DMA disable X-Git-Tag: v2.6.24-rc1~1391^2~20 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b3a706014e56b1356e7b275fd25b833c63175bf0;p=pandora-kernel.git libata: Add a drivers/ide style DMA disable This is useful when debugging, handling problem systems, or for distributions just to get the system installed so it can be sorted out later. This is a bit smarter than the old IDE one and lets you do libata.dma=0 Disable all PATA DMA like old IDE libata.dma=1 Disk DMA only libata.dma=2 ATAPI DMA only libata.dma=4 CF DMA only (or combinations thereof - 0,1,3 being the useful ones I suspect) (I've split CF as it seems to be a seperate case of pain and suffering different to the others and caused by assorted PIO wired adapters etc) Signed-off-by: Alan Cox [edited to work on SATA too, changing name from 'pata_dma' to 'dma'] Signed-off-by: Jeff Garzik --- Reading git-diff-tree failed