The DWC PCIe controller can be used with its internal MSI controller or
with an external one such as the GICv3 Interrupt Translation Service
(ITS).
Add the msi-map properties needed to use the GIC ITS. This will also
make Linux switch to the ITS implementation, which allows for assigning
affinity to individual MSIs.
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/x1e80100.dtsi | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
index 32a73ff672be..5822ed97ad87 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi
@@ -3114,6 +3114,8 @@ pcie6a: pci@1bf8000 {
linux,pci-domain = <7>;
num-lanes = <2>;
+ msi-map = <0x0 &gic_its 0xe0000 0x10000>;
+
interrupts = <GIC_SPI 773 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 774 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 837 IRQ_TYPE_LEVEL_HIGH>,
@@ -3235,6 +3237,8 @@ pcie4: pci@1c08000 {
linux,pci-domain = <5>;
num-lanes = <2>;
+ msi-map = <0x0 &gic_its 0xc0000 0x10000>;
+
interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>,
@@ -5394,8 +5398,6 @@ gic_its: msi-controller@17040000 {
msi-controller;
#msi-cells = <1>;
-
- status = "disabled";
};
};
--
2.44.2
