Messages in this thread | | | Date | Fri, 6 Jun 2014 09:01:03 -0700 | From | Greg KH <> | Subject | Re: [PATCH v2 1/4] dma-mapping: Add devm_ interface for dma_map_single() |
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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
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