Re: [PATCH v5 0/3] iommu/arm-smmu-qcom: Support maintaining bootloader mappings
On Mon, 19 Oct 2020 11:23:20 -0700, Bjorn Andersson wrote: > This is the revised fourth attempt of inheriting the stream mapping for > the framebuffer on many Qualcomm platforms, in order to not hit > catastrophic faults during arm-smmu initialization. > > The new approach does, based on Robin's suggestion, take a much more > direct approach with the allocation of a context bank for bypass > emulation and use of this context bank pretty much isolated to the > Qualcomm specific implementation. > > [...] Applied to will (for-joerg/arm-smmu/updates), thanks! [1/3] iommu/arm-smmu: Allow implementation specific write_s2cr https://git.kernel.org/will/c/56b75b51ed6d [2/3] iommu/arm-smmu-qcom: Read back stream mappings https://git.kernel.org/will/c/07a7f2caaa5a [3/3] iommu/arm-smmu-qcom: Implement S2CR quirk https://git.kernel.org/will/c/f9081b8ff593 Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev ___ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
Re: [PATCH v5 0/3] iommu/arm-smmu-qcom: Support maintaining bootloader mappings
On 10/19/20 1:23 PM, Bjorn Andersson wrote: > This is the revised fourth attempt of inheriting the stream mapping for > the framebuffer on many Qualcomm platforms, in order to not hit > catastrophic faults during arm-smmu initialization. > > The new approach does, based on Robin's suggestion, take a much more > direct approach with the allocation of a context bank for bypass > emulation and use of this context bank pretty much isolated to the > Qualcomm specific implementation. > > The patchset has been tested to boot DB845c and RB5 (with splash screen) > and Lenovo Yoga C630 (with EFI framebuffer). > > Bjorn Andersson (3): > iommu/arm-smmu: Allow implementation specific write_s2cr > iommu/arm-smmu-qcom: Read back stream mappings > iommu/arm-smmu-qcom: Implement S2CR quirk > > drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 90 ++ > drivers/iommu/arm/arm-smmu/arm-smmu.c | 13 +++- > drivers/iommu/arm/arm-smmu/arm-smmu.h | 1 + > 3 files changed, 101 insertions(+), 3 deletions(-) > Tested series here on my Lenovo C630. Tested-by: Steev Klimaszewski ___ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
[PATCH v5 0/3] iommu/arm-smmu-qcom: Support maintaining bootloader mappings
This is the revised fourth attempt of inheriting the stream mapping for the framebuffer on many Qualcomm platforms, in order to not hit catastrophic faults during arm-smmu initialization. The new approach does, based on Robin's suggestion, take a much more direct approach with the allocation of a context bank for bypass emulation and use of this context bank pretty much isolated to the Qualcomm specific implementation. The patchset has been tested to boot DB845c and RB5 (with splash screen) and Lenovo Yoga C630 (with EFI framebuffer). Bjorn Andersson (3): iommu/arm-smmu: Allow implementation specific write_s2cr iommu/arm-smmu-qcom: Read back stream mappings iommu/arm-smmu-qcom: Implement S2CR quirk drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 90 ++ drivers/iommu/arm/arm-smmu/arm-smmu.c | 13 +++- drivers/iommu/arm/arm-smmu/arm-smmu.h | 1 + 3 files changed, 101 insertions(+), 3 deletions(-) -- 2.28.0 ___ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
