On Fri, Oct 25, 2024 at 06:45:01PM +0200, Konrad Dybcio wrote: > On 25.10.2024 1:06 PM, Dmitry Baryshkov wrote: > > On Fri, Oct 25, 2024 at 10:54:24AM +0200, Konrad Dybcio wrote: > >> On 25.10.2024 5:07 AM, Qingqing Zhou wrote: > >>> Add the APPS SMMU node for QCS615 platform. Add the dma-ranges > >>> to limit DMA address range to 36bit width to align with system > >>> architecture. > >>> > >>> Signed-off-by: Qingqing Zhou <quic_qqzhou@xxxxxxxxxxx> > >>> --- > >> > >> You probably also want to mark it `dma-coherent` (see e.g. > >> x1e80100.dtsi) > > > > Is it? I don't think SM6150 had dma-coherent SMMU, at least it wasn't > > marked as such. > > I don't think I have any documentation on this, so.. one way to find out! I don't have qcs615 at hand, so a purely theoretical question. But how should it break if we mark it as dma-coherent, while it is not? -- With best wishes Dmitry
