Messages in this thread | | | Date | Mon, 18 Mar 2024 09:52:26 +0100 | From | Neil Armstrong <> | Subject | Re: [PATCH 2/3] arm64: dts: qcom: sm8550: Fix the msi-map entries |
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On 18/03/2024 08:19, Manivannan Sadhasivam wrote: > While adding the GIC ITS MSI support, it was found that the msi-map entries > needed to be swapped to receive MSIs from the endpoint. > > But later it was identified that the swapping was needed due to a bug in > the Qualcomm PCIe controller driver. And since the bug is now fixed with > commit bf79e33cdd89 ("PCI: qcom: Enable BDF to SID translation properly"), > let's fix the msi-map entries also to reflect the actual mapping in the > hardware. > > Fixes: 114990ce3edf ("arm64: dts: qcom: sm8550: Use GIC-ITS for PCIe0 and PCIe1") > Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> > --- > arch/arm64/boot/dts/qcom/sm8550.dtsi | 10 ++++------ > 1 file changed, 4 insertions(+), 6 deletions(-) > > diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi > index 3904348075f6..3348bc06db48 100644 > --- a/arch/arm64/boot/dts/qcom/sm8550.dtsi > +++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi > @@ -1755,9 +1755,8 @@ pcie0: pcie@1c00000 { > <&gem_noc MASTER_APPSS_PROC 0 &cnoc_main SLAVE_PCIE_0 0>; > interconnect-names = "pcie-mem", "cpu-pcie"; > > - /* Entries are reversed due to the unusual ITS DeviceID encoding */ > - msi-map = <0x0 &gic_its 0x1401 0x1>, > - <0x100 &gic_its 0x1400 0x1>; > + msi-map = <0x0 &gic_its 0x1400 0x1>, > + <0x100 &gic_its 0x1401 0x1>; > iommu-map = <0x0 &apps_smmu 0x1400 0x1>, > <0x100 &apps_smmu 0x1401 0x1>; > > @@ -1867,9 +1866,8 @@ pcie1: pcie@1c08000 { > <&gem_noc MASTER_APPSS_PROC 0 &cnoc_main SLAVE_PCIE_1 0>; > interconnect-names = "pcie-mem", "cpu-pcie"; > > - /* Entries are reversed due to the unusual ITS DeviceID encoding */ > - msi-map = <0x0 &gic_its 0x1481 0x1>, > - <0x100 &gic_its 0x1480 0x1>; > + msi-map = <0x0 &gic_its 0x1480 0x1>, > + <0x100 &gic_its 0x1481 0x1>; > iommu-map = <0x0 &apps_smmu 0x1480 0x1>, > <0x100 &apps_smmu 0x1481 0x1>; > >
Acked-by: Neil Armstrong <neil.armstrong@linaro.org> Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD
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