From: AngeloGioacchino Del Regno <kholk11@xxxxxxxxx> Some Qualcomm Family-B SoCs have got a different version of the QCOM IOMMU, specifically v2 and 500, which perfectly adhere to the current qcom_iommu driver, but need some variations due to slightly different hypervisor behavior. The personal aim is to upstream MSM8956 as much as possible. This code has been tested on two Sony phones featuring the Qualcomm MSM8956 SoC. Changes in v2: - Fixed optional properties placement in documentation AngeloGioacchino Del Regno (6): iommu/qcom: Use the asid read from device-tree if specified iommu/qcom: Write TCR before TTBRs to fix ASID access behavior iommu/qcom: Properly reset the IOMMU context iommu/qcom: Add support for AArch64 IOMMU pagetables iommu/qcom: Index contexts by asid number to allow asid 0 iommu/qcom: Add support for QCIOMMUv2 and QCIOMMU-500 secured contexts .../devicetree/bindings/iommu/qcom,iommu.txt | 5 + drivers/iommu/qcom_iommu.c | 133 ++++++++++++++---- 2 files changed, 111 insertions(+), 27 deletions(-) -- 2.21.0
