Hi Laurent, On Mon, Oct 19, 2015 at 3:42 PM, Laurent Pinchart <[email protected]> wrote: > Hi Magnus, > > Thank you for the patch. > > On Monday 19 October 2015 12:02:53 Magnus Damm wrote: >> From: Magnus Damm <[email protected]> >> >> Neither the ARM page table code enabled by IOMMU_IO_PGTABLE_LPAE >> nor the IPMMU_VMSA driver actually depends on ARM_LPAE, so get >> rid of the dependency. >> >> Tested with ipmmu-vmsa on r8a7794 ALT and a kernel config using: >> # CONFIG_ARM_LPAE is not set > > The driver only supports the 40-bits page table format for now, hence the > dependency on LPAE, but it indeed seems that the dependency is bogus. As long > as the 8 MSBs of the translated address are all 0 I assume the output 40-bit > address is usable on a 32-bit physical address system. > > How have you tested the patch ?
Modetest with local IPMMUMX enablement on r8a7794 ALT. Cheers, / magnus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
