Re: [PATCH 2/5] iommu/tegra-smmu: Use non-secure register for flushing

2019-01-24 Thread Dmitry Osipenko
24.01.2019 21:29, navneet kumar пишет: > On 1/17/19 7:25 AM, Dmitry Osipenko wrote: >> 16.01.2019 23:50, Navneet Kumar пишет: >>> 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

Re: [PATCH 2/5] iommu/tegra-smmu: Use non-secure register for flushing

2019-01-24 Thread navneet kumar
On 1/17/19 7:25 AM, Dmitry Osipenko wrote: > 16.01.2019 23:50, Navneet Kumar пишет: >> 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

Re: [PATCH 2/5] iommu/tegra-smmu: Use non-secure register for flushing

2019-01-17 Thread Dmitry Osipenko
16.01.2019 23:50, Navneet Kumar пишет: > 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

[PATCH 2/5] iommu/tegra-smmu: Use non-secure register for flushing

2019-01-16 Thread Navneet Kumar
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 --- drivers/iommu/tegra-smmu.c | 2 +- 1