Hi Magnus, Thank you for the patch.
On Monday 19 October 2015 12:02:53 Magnus Damm wrote: > From: Magnus Damm <damm+rene...@opensource.se> > > 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 ? > Signed-off-by: Magnus Damm <damm+rene...@opensource.se> > --- > > drivers/iommu/Kconfig | 1 - > 1 file changed, 1 deletion(-) > > --- 0001/drivers/iommu/Kconfig > +++ work/drivers/iommu/Kconfig 2015-10-18 14:58:09.080513000 +0900 > @@ -324,7 +324,6 @@ config SHMOBILE_IOMMU_L1SIZE > > config IPMMU_VMSA > bool "Renesas VMSA-compatible IPMMU" > - depends on ARM_LPAE > depends on ARCH_SHMOBILE || COMPILE_TEST > select IOMMU_API > select IOMMU_IO_PGTABLE_LPAE -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
