This is a note to let you know that I've just added the patch titled
arm64: dts: qcom: sm8150: Fix the iommu mask used for PCIe controllers
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm64-dts-qcom-sm8150-fix-the-iommu-mask-used-for-pcie-controllers.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 672a58fc7c477e59981653a11241566870fff852 Mon Sep 17 00:00:00 2001
From: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
Date: Fri, 24 Feb 2023 13:30:45 +0530
Subject: arm64: dts: qcom: sm8150: Fix the iommu mask used for PCIe controllers
From: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
commit 672a58fc7c477e59981653a11241566870fff852 upstream.
The iommu mask should be 0x3f as per Qualcomm internal documentation.
Without the correct mask, the PCIe transactions from the endpoint will
result in SMMU faults. Hence, fix it!
Cc: stable@xxxxxxxxxxxxxxx # 5.19
Fixes: a1c86c680533 ("arm64: dts: qcom: sm8150: Add PCIe nodes")
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Reviewed-by: Bhupesh Sharma <bhupesh.sharma@xxxxxxxxxx>
Signed-off-by: Bjorn Andersson <andersson@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230224080045.6577-1-manivannan.sadhasivam@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sm8150.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/arm64/boot/dts/qcom/sm8150.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8150.dtsi
@@ -1810,7 +1810,7 @@
"slave_q2a",
"tbu";
- iommus = <&apps_smmu 0x1d80 0x7f>;
+ iommus = <&apps_smmu 0x1d80 0x3f>;
iommu-map = <0x0 &apps_smmu 0x1d80 0x1>,
<0x100 &apps_smmu 0x1d81 0x1>;
@@ -1909,7 +1909,7 @@
assigned-clocks = <&gcc GCC_PCIE_1_AUX_CLK>;
assigned-clock-rates = <19200000>;
- iommus = <&apps_smmu 0x1e00 0x7f>;
+ iommus = <&apps_smmu 0x1e00 0x3f>;
iommu-map = <0x0 &apps_smmu 0x1e00 0x1>,
<0x100 &apps_smmu 0x1e01 0x1>;
Patches currently in stable-queue which might be from manivannan.sadhasivam@xxxxxxxxxx are
queue-6.1/arm64-dts-qcom-sm8450-mark-ufs-controller-as-cache-c.patch
queue-6.1/arm64-dts-qcom-sm8150-fix-the-iommu-mask-used-for-pcie-controllers.patch
