On Thu, 2009-05-28 at 00:11 -0400, Sean MacLennan wrote:

On Thu, 28 May 2009 13:52:29 +1000
Benjamin Herrenschmidt [off-list ref] wrote:

quoted

Can't you set ISA_DMA_THRESHOLD = ~0L from your warp.c platform file ?

I actually set it in the driver proper since it is faster to test, but
it works. I am just wondering how kosher that is.

Set it in warp.c and send me a patch for 2.6.30, we can have a proper
device bound to it for .31.

The advantage of the platform_device is I can go back to using the top
level function. And I suspect down the road the __dma* functions may
require a real device.

However, the ISA_DMA_THRESHOLD = ~0L is a less intrusive patch.

Yes until you have a proper device probed of the device-tree.

Cheers,
Ben.