Quoting Sibi Sankar (2020-05-11 10:55:32) > The modem remote processor has two access paths to DDR. One path is > directly connected to DDR and another path goes through an SMMU. The > SMMU path is configured to be a direct mapping because it's used by > various peripherals in the modem subsystem. Typically this direct > mapping is configured statically at EL2 by QHEE (Qualcomm's Hypervisor > Execution Environment) before the kernel is entered. > > In certain firmware configuration, especially when the kernel is already > in full control of the SMMU, defer programming the modem SIDs to the > kernel. Let's add compatibles here so that we can have the kernel > program the SIDs for the modem in these cases. > > Signed-off-by: Sibi Sankar <si...@codeaurora.org> > ---
Reviewed-by: Stephen Boyd <swb...@chromium.org> _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
