[RESEND PATCH v4 4/6] iommu/arm-smmu-qcom: Add stall support

2021-06-02 Thread Rob Clark
From: Rob Clark Add, via the adreno-smmu-priv interface, a way for the GPU to request the SMMU to stall translation on faults, and then later resume the translation, either retrying or terminating the current translation. This will be used on the GPU side to "freeze" the GPU while we snapshot us

[PATCH v4 4/6] iommu/arm-smmu-qcom: Add stall support

2021-06-01 Thread Rob Clark
From: Rob Clark Add, via the adreno-smmu-priv interface, a way for the GPU to request the SMMU to stall translation on faults, and then later resume the translation, either retrying or terminating the current translation. This will be used on the GPU side to "freeze" the GPU while we snapshot us