| Message ID | 20201126015457.6557-2-elder@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | arm64: dts: fixes | expand |
On Wed 25 Nov 19:54 CST 2020, Alex Elder wrote: > Recently we learned that Android and Windows firmware don't seem to > like using 3 as an iommu mask value for IPA. A simple fix was to > specify exactly the streams needed explicitly, rather than implying > a range with the mask. Make the same change for the SC7180 platform. > > See also: > https://lore.kernel.org/linux-arm-msm/20201123052305.157686-1-bjorn.andersson@linaro.org/ > Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> > Fixes: d82fade846aa8 ("arm64: dts: qcom: sc7180: add IPA information") > Signed-off-by: Alex Elder <elder@linaro.org> > --- > arch/arm64/boot/dts/qcom/sc7180.dtsi | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi > index c0efb101b0d61..eb66aadf360d7 100644 > --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi > +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi > @@ -1396,7 +1396,8 @@ > ipa: ipa@1e40000 { > compatible = "qcom,sc7180-ipa"; > > - iommus = <&apps_smmu 0x440 0x3>; > + iommus = <&apps_smmu 0x440 0x0>, > + <&apps_smmu 0x442 0x0>; > reg = <0 0x1e40000 0 0x7000>, > <0 0x1e47000 0 0x2000>, > <0 0x1e04000 0 0x2c000>; > -- > 2.20.1 >
diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi index c0efb101b0d61..eb66aadf360d7 100644 --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi @@ -1396,7 +1396,8 @@ ipa: ipa@1e40000 { compatible = "qcom,sc7180-ipa"; - iommus = <&apps_smmu 0x440 0x3>; + iommus = <&apps_smmu 0x440 0x0>, + <&apps_smmu 0x442 0x0>; reg = <0 0x1e40000 0 0x7000>, <0 0x1e47000 0 0x2000>, <0 0x1e04000 0 0x2c000>;
Recently we learned that Android and Windows firmware don't seem to like using 3 as an iommu mask value for IPA. A simple fix was to specify exactly the streams needed explicitly, rather than implying a range with the mask. Make the same change for the SC7180 platform. See also: https://lore.kernel.org/linux-arm-msm/20201123052305.157686-1-bjorn.andersson@linaro.org/ Fixes: d82fade846aa8 ("arm64: dts: qcom: sc7180: add IPA information") Signed-off-by: Alex Elder <elder@linaro.org> --- arch/arm64/boot/dts/qcom/sc7180.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) -- 2.20.1