lkml.org 
[lkml]   [2014]   [Jun]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 1/4] dma-mapping: Add devm_ interface for dma_map_single()
On Fri, Jun 06, 2014 at 02:45:06PM +0300, Eli Billauer wrote:
> Hello Joerg.
>
>
> On 05/06/14 00:25, Joerg Roedel wrote:
> >
> >What you are trying to do should work with dma_alloc_noncoherent(). The
> >API allows partial syncs on this memory, so you should be fine.
> Please try to put yourself in my position: I have a driver that I care
> about, which works fine for a few years. It's based upon dma_map_single(),
> which seems to be the common way to get non-coherent memory, even for the
> driver's entire lifespan. I realize that dma_alloc_* was the intended way to
> do it, but fact is that dma_map_* has become the common choice.

Is your driver in the kernel tree? If not, you really are on your own :(

greg k-h


\
 
 \ /
  Last update: 2014-06-06 21:21    [W:0.088 / U:0.664 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site