| Message ID | 20201019182323.3162386-1-bjorn.andersson@linaro.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | iommu/arm-smmu-qcom: Support maintaining bootloader mappings | expand |
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 <steev@kali.org>
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,