Subject: Re: BUS_DMA_CONTROLDATA flag for bus_dma(9)
To: None <Richard.Earnshaw@buzzard.freeserve.co.uk>
From: Jason Thorpe <thorpej@wasabisystems.com>
List: tech-kern
Date: 08/15/2003 15:55:20 
On Friday, August 15, 2003, at 03:36  PM, Richard Earnshaw wrote:

> Which implies that coherrency is impossible if bounce buffers are 
> needed.

...except that COHERENT still requires bus_dmamap_sync() for correct 
operation.  I still think it's possible for it to work with bounce 
buffers.

         -- Jason R. Thorpe <thorpej@wasabisystems.com>