| Message ID | 20230609054141.18938-3-quic_ppareek@quicinc.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Headers | show |
| Series | arm64: dts: qcom: sa8775p: Add interconnect to SMMU | expand |
On 09/06/2023 07:41, Parikshit Pareek wrote: > Introduce the interconnect, connecting PCIe SMMU to the memory. This > is accessed during memory mapped IO access of smmu registers, and > during page table walks. > > Reported-by: Eric Chanudet <echanude@redhat.com> > Signed-off-by: Parikshit Pareek <quic_ppareek@quicinc.com> > --- > arch/arm64/boot/dts/qcom/sa8775p.dtsi | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi > index b130136acffe..ea3c37019c46 100644 > --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi > +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi > @@ -2137,6 +2137,10 @@ > <GIC_SPI 639 IRQ_TYPE_LEVEL_HIGH>, > <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>, > <GIC_SPI 640 IRQ_TYPE_LEVEL_HIGH>; > + interconnects = <&pcie_anoc MASTER_PCIE_0 QCOM_ICC_TAG_ALWAYS > + &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>; > + interconnect-names = "tbu_mc"; > + icc_bw = <250>; Why 250? Why it cannot change during system run depending on the needs? Best regards, Krzysztof
diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi index b130136acffe..ea3c37019c46 100644 --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi @@ -2137,6 +2137,10 @@ <GIC_SPI 639 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 640 IRQ_TYPE_LEVEL_HIGH>; + interconnects = <&pcie_anoc MASTER_PCIE_0 QCOM_ICC_TAG_ALWAYS + &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>; + interconnect-names = "tbu_mc"; + icc_bw = <250>; }; intc: interrupt-controller@17a00000 {
Introduce the interconnect, connecting PCIe SMMU to the memory. This is accessed during memory mapped IO access of smmu registers, and during page table walks. Reported-by: Eric Chanudet <echanude@redhat.com> Signed-off-by: Parikshit Pareek <quic_ppareek@quicinc.com> --- arch/arm64/boot/dts/qcom/sa8775p.dtsi | 4 ++++ 1 file changed, 4 insertions(+)