Commit 6d3bd106 authored by Manivannan Sadhasivam's avatar Manivannan Sadhasivam Committed by Bjorn Andersson
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arm64: dts: qcom: sm8650: Fix the msi-map entries 



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 bf79e33c ("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: a33a532b ("arm64: dts: qcom: sm8650: Use GIC-ITS for PCIe0 and PCIe1")
Signed-off-by: default avatarManivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-QRD
Link: https://lore.kernel.org/r/20240318-pci-bdf-sid-fix-v1-3-acca6c5d9cf1@linaro.org


Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
parent 98a953fa

arch/arm64/boot/dts/qcom/sm8650.dtsi

+4 −6
Original line number Diff line number Diff line
@@ -2274,9 +2274,8 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>, 
			interrupt-map-mask = <0 0 0 0x7>;

			#interrupt-cells = <1>;



			/* 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>;

			msi-map-mask = <0xff00>;



			linux,pci-domain = <0>;
@@ -2402,9 +2401,8 @@ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>, 
			interrupt-map-mask = <0 0 0 0x7>;

			#interrupt-cells = <1>;



			/* 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>;

			msi-map-mask = <0xff00>;



			linux,pci-domain = <1>;