iommu/tegra-smmu: Use non-secure register for flushing

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Use PTB_ASID instead of SMMU_CONFIG to flush smmu.
PTB_ASID can be accessed from non-secure mode, SMMU_CONFIG cannot be.
Using SMMU_CONFIG could pose a problem when kernel doesn't have secure
mode access enabled from boot.

Signed-off-by: Navneet Kumar <navneetk@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

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Navneet Kumar 2019-10-16 13:50:24 +02:00 • committed by Joerg Roedel

parent 4f5cafb5cb

commit 446152d5b6

1 changed files with 1 additions and 1 deletions

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drivers/iommu/tegra-smmu.c

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