Re: [PATCH v3 5/8] iommu/arm-smmu-qcom: Consistently initialize stream mappings

2020-09-11 Thread Sai Prakash Ranjan
On 2020-09-04 21:25, Bjorn Andersson wrote: Firmware that traps writes to S2CR to translate BYPASS into FAULT also ignores writes of type FAULT. As such booting with "disable_bypass" set will result in all S2CR registers left as configured by the bootloader. This has been seen to result in

[PATCH v3 5/8] iommu/arm-smmu-qcom: Consistently initialize stream mappings

2020-09-04 Thread Bjorn Andersson
Firmware that traps writes to S2CR to translate BYPASS into FAULT also ignores writes of type FAULT. As such booting with "disable_bypass" set will result in all S2CR registers left as configured by the bootloader. This has been seen to result in indeterministic results, as these mappings might