Based on previous attempts and discussions this is the latest attempt at inheriting stream mappings set up by the bootloader, for e.g. boot splash or efifb. Per Will's request this builds on the work by Jordan and Rob for the Adreno SMMU support. It applies cleanly ontop of v16 of their series, which can be found at https://lore.kernel.org/linux-arm-msm/20200901164707.2645413-1-robdclark@xxxxxxxxx/ Bjorn Andersson (8): iommu/arm-smmu: Refactor context bank allocation iommu/arm-smmu: Delay modifying domain during init iommu/arm-smmu: Consult context bank allocator for identify domains iommu/arm-smmu-qcom: Emulate bypass by using context banks iommu/arm-smmu-qcom: Consistently initialize stream mappings iommu/arm-smmu: Add impl hook for inherit boot mappings iommu/arm-smmu: Provide helper for allocating identity domain iommu/arm-smmu-qcom: Setup identity domain for boot mappings drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 111 ++++++++++++++++++- drivers/iommu/arm/arm-smmu/arm-smmu.c | 122 ++++++++++++++------- drivers/iommu/arm/arm-smmu/arm-smmu.h | 14 ++- 3 files changed, 205 insertions(+), 42 deletions(-) -- 2.28.0
