Re: [PATCH v3 4/8] iommu/arm-smmu-qcom: Emulate bypass by using context banks

2020-09-11 Thread Sai Prakash Ranjan
On 2020-09-04 21:25, Bjorn Andersson wrote: Some firmware found on various Qualcomm platforms traps writes to S2CR of type BYPASS and writes FAULT into the register. In particular, this prevents us from marking the streams for the display controller as BYPASS to allow continued scanout of the

[PATCH v3 4/8] iommu/arm-smmu-qcom: Emulate bypass by using context banks

2020-09-04 Thread Bjorn Andersson
Some firmware found on various Qualcomm platforms traps writes to S2CR of type BYPASS and writes FAULT into the register. In particular, this prevents us from marking the streams for the display controller as BYPASS to allow continued scanout of the screen through the initialization of the ARM