Re: [PATCH v2 2/3] drm/ttm: introduce dma cache sync helpers

[Russell King - ARM Linux]

On Tue, Jun 24, 2014 at 06:54:26PM +0900, Alexandre Courbot wrote:
> From: Lucas Stach <dev@xxxxxxxxxx>
> 
> On architectures for which access to GPU memory is non-coherent,
> caches need to be flushed and invalidated explicitly at the
> appropriate places. Introduce two small helpers to make things
> easy for TTM-based drivers.

Have you run this with DMA API debugging enabled?  I suspect you haven't,
and I recommend that you do.

-- 
FTTC broadband for 0.8mile line: now at 9.7Mbps down 460kbps up... slowly
improving, and getting towards what was expected from it.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/