On Thu, Apr 25, 2019 at 11:30:54AM +, Laurentiu Tudor wrote:
> > I think the first step is to move the two USB controller that can only
> > DMA to their own BAR off the existing DMA coherent infrastructure. The
> > controllers are already identified using the HCD_LOCAL_MEM flag, so we
> >
Hi Christoph,
On 24.04.2019 17:57, Christoph Hellwig wrote:
> I'd be happy to offload all of the mentioned tasks to you if you
> volunteer.
Alright, I think I mostly got it and can start with the two usb drivers
you mentioned. Just need a few clarifications, please see inline.
> I think the
I'd be happy to offload all of the mentioned tasks to you if you
volunteer.
I think the first step is to move the two USB controller that can only
DMA to their own BAR off the existing DMA coherent infrastructure. The
controllers are already identified using the HCD_LOCAL_MEM flag, so we
just
Hello,
> -Original Message-
> From: Christoph Hellwig
> Sent: Monday, April 22, 2019 9:11 PM
>
> On Mon, Apr 22, 2019 at 07:51:25PM +0300, laurentiu.tu...@nxp.com wrote:
> > From: Laurentiu Tudor
> >
> > If possible / available call into the DMA API to get a proper iommu
> > mapping
On Mon, Apr 22, 2019 at 07:51:25PM +0300, laurentiu.tu...@nxp.com wrote:
> From: Laurentiu Tudor
>
> If possible / available call into the DMA API to get a proper iommu
> mapping and a dma address for the newly allocated coherent dma memory.
I don't think this is so simple. The original use
