On Thu, Aug 20, 2020 at 09:37:12AM -0400, Jim Quinlan wrote:
> On Tue, Aug 18, 2020 at 4:14 AM Andy Shevchenko
> wrote:
> > On Mon, Aug 17, 2020 at 05:53:09PM -0400, Jim Quinlan wrote:
...
> > > +static inline u64 dma_offset_from_dma_addr(struct device *dev,
> > > dma_addr_t dma_addr)
> > > +{
Hi Anday,
On Tue, Aug 18, 2020 at 4:14 AM Andy Shevchenko
wrote:
>
> On Mon, Aug 17, 2020 at 05:53:09PM -0400, Jim Quinlan wrote:
> > The new field 'dma_range_map' in struct device is used to facilitate the
> > use of single or multiple offsets between mapping regions of cpu addrs and
> > dma
On Mon, Aug 17, 2020 at 05:53:09PM -0400, Jim Quinlan wrote:
> The new field 'dma_range_map' in struct device is used to facilitate the
> use of single or multiple offsets between mapping regions of cpu addrs and
> dma addrs. It subsumes the role of "dev->dma_pfn_offset" which was only
> capable
The new field 'dma_range_map' in struct device is used to facilitate the
use of single or multiple offsets between mapping regions of cpu addrs and
dma addrs. It subsumes the role of "dev->dma_pfn_offset" which was only
capable of holding a single uniform offset and had no region bounds
checking.
