On Thu, Apr 07, 2022 at 03:52:53PM +0800, Leizhen (ThunderTown) wrote:
> On 2022/4/4 19:27, John Garry wrote:
> > Some low-level drivers may request DMA mappings whose IOVA length exceeds
> > that of the current rcache upper limit.
> >
> > This means that allocations for those IOVAs will never be
On Mon, Apr 04, 2022 at 07:27:11PM +0800, John Garry wrote:
> Some low-level drivers may request DMA mappings whose IOVA length exceeds
> that of the current rcache upper limit.
>
> This means that allocations for those IOVAs will never be cached, and
> always must be allocated and freed from the
