[PATCH v12 4/5] dma-buf: heaps: Add CMA heap to dmabuf heaps

[Benjamin Gaignard]

Le ven. 18 oct. 2019 à 13:21, Brian Starkey <Brian.Starkey at arm.com> a écrit :
>
> On Fri, Oct 18, 2019 at 05:23:22AM +0000, John Stultz wrote:
> > This adds a CMA heap, which allows userspace to allocate
> > a dma-buf of contiguous memory out of a CMA region.
> >
> > This code is an evolution of the Android ION implementation, so
> > thanks to its original author and maintainters:
> >   Benjamin Gaignard, Laura Abbott, and others!
> >
> > NOTE: This patch only adds the default CMA heap. We will enable
> > selectively adding other CMA memory regions to the dmabuf heaps
> > interface with a later patch (which requires a dt binding)

Maybe we can use "no-map" DT property to trigger that. If set do not expose the
cma heap.

Benjamin
>
> That'll teach me for reading my email in FIFO order.
>
> This approach makes sense to me.
>
> -Brian
>