Hi Jörg,
On Wed, May 13, 2020 at 11:53:04AM +0200, Joerg Roedel wrote:
> On Tue, May 05, 2020 at 12:09:32PM +0200, Maxime Ripard wrote:
> > +static u32 *sun50i_dte_get_page_table(struct sun50i_iommu_domain
> > *sun50i_domain,
> > + dma_addr_t iova, gfp_t gfp)
> > +
On Tue, May 05, 2020 at 12:09:32PM +0200, Maxime Ripard wrote:
> +static u32 *sun50i_dte_get_page_table(struct sun50i_iommu_domain
> *sun50i_domain,
> + dma_addr_t iova, gfp_t gfp)
> +{
> + struct sun50i_iommu *iommu = sun50i_domain->iommu;
> + unsigned lo
The Allwinner H6 has introduced an IOMMU for a few DMA controllers, mostly
video related: the display engine, the video decoders / encoders, the
camera capture controller, etc.
The design is pretty simple compared to other IOMMUs found in SoCs: there's
a single instance, controlling all the master
