iommu/arm-smmu: Change virtual address size limit to 39 bits



Restrict the virtual address size to 39-bits to allow
a maximum of 3 pagetable levels.

Change-Id: I264f23a2e16cc7599bdad8a161854bcf6e24dd4a
Signed-off-by: Sushmita Susheelendra <ssusheel@codeaurora.org>

parent 855e0a4c

drivers/iommu/arm-smmu.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -3916,7 +3916,7 @@ static int arm_smmu_device_cfg_probe(struct arm_smmu_device *smmu)
		#ifndef CONFIG_64BIT
		smmu->va_size = min(32UL, smmu->va_size);
		#endif
		smmu->va_size = min(36UL, smmu->va_size);
		smmu->va_size = min(39UL, smmu->va_size);
		size = 0;
		if (id & ID2_PTFS_4K)
		size \|= SZ_4K \| SZ_2M \| SZ_1G;