[PATCH v3 0/8] iommu/arm-smmu: Support maintaining bootloader mappings

[Rob Clark]

On Fri, Sep 4, 2020 at 8:55 AM Bjorn Andersson
<bjorn.andersson at linaro.org> wrote:
>
> 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@gmail.com/
>
> 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

I have squashed 1/8 into v17 of the adreno-smmu series as suggested by
Bjorn, the remainder are:

Reviewed-by: Rob Clark <robdclark at gmail.com>

and on the lenovo c630,

Tested-by: Rob Clark <robdclark at gmail.com>

>  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
>
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