Need to resolve the SMMU errors while using the iperf3 commands
Hi,
I am trying to resolve the smmu errors which happens when the iperf command is being issues.
I have updated the dts and kernel files as shown below
git diff
diff --git a/kernel-dts/tegra194-soc/tegra194-soc-pcie.dtsi b/kernel-dts/tegra194-soc/tegra194-soc-pcie.dtsi
index 68037b7..b89bcf3 100644
--- a/kernel-dts/tegra194-soc/tegra194-soc-pcie.dtsi
+++ b/kernel-dts/tegra194-soc/tegra194-soc-pcie.dtsi
@@ -481,13 +481,6 @@
204000000 204000000 408000000 666000000
204000000 408000000 666000000 1066000000
408000000 666000000 1066000000 2133000000 >;
-
- iommus = <&smmu TEGRA_SID_PCIE5>;
- dma-coherent;
-#if LINUX_VERSION >= 414
- iommu-map = <0x0 &smmu TEGRA_SID_PCIE5 0x1000>;
- iommu-map-mask = <0x0>;
-#endif
};
pcie@14180000 {
@@ -867,12 +860,6 @@
pinctrl-0 = <&pex_rst_c5_out_state>;
pinctrl-1 = <&clkreq_c5_bi_dir_state>;
- iommus = <&smmu TEGRA_SID_PCIE5>;
- dma-coherent;
-#if LINUX_VERSION >= 414
- iommu-map = <0x0 &smmu TEGRA_SID_PCIE5 0x1000>;
- iommu-map-mask = <0x0>;
-#endif
#interrupt-cells = ;
interrupt-map-mask = <0 0 0 0>;
I am getting the below errors even though is I update the smmu biased by following the below steps for the AGX Xavier NX board. Could you please guide me to resolve the iommu erros in the board, which comes when I issue the iperf commands.
[ 634.336834] t19x-arm-smmu 12000000.iommu: Unhandled context fault: smmu0, iova=0x4ffebf000, fsynr=0x220013, cb=3, sid=91(0x5b - PCIE5), pgd=8568d3003, pud=8568d3003, pmd=7e7a54003, pte=0
[ 634.337855] mc-err: vpr base=0:c6000000, size=20, ctrl=3, override:(a01a8340, fcee10c1, 1, 0)
[ 634.338076] mc-err: (255) csw_pcie5w: MC request violates VPR requirements
[ 634.338232] mc-err: status = 0x0ff740e3; addr = 0xffffffff00; hi_adr_reg=008
[ 634.338375] mc-err: secure: yes, access-type: write
[ 634.338517] mc-err: mcerr: unknown intr source intstatus = 0x00000000, intstatus_1 = 0x00000000
[ 635.111501] t19x-arm-smmu 12000000.iommu: Unhandled context fault: smmu0, iova=0x4ffebf000, fsynr=0x220013, cb=3, sid=91(0x5b - PCIE5), pgd=8568d3003, pud=8568d3003, pmd=7e7a54003, pte=0
[ 635.112444] mc-err: vpr base=0:c6000000, size=20, ctrl=3, override:(a01a8340, fcee10c1, 1, 0)
[ 635.112649] mc-err: (255) csw_pcie5w: MC request violates VPR requirements
[ 635.112844] mc-err: status = 0x0ff740e3; addr = 0xffffffff00; hi_adr_reg=008
[ 635.113141] mc-err: secure: yes, access-type: write
[ 635.113283] mc-err: mcerr: unknown intr source intstatus = 0x00000000, intstatus_1 = 0x00000000
[ 635.143296] t19x-arm-smmu 12000000.iommu: Unhandled context fault: smmu0, iova=0x4ffebf000, fsynr=0x220013, cb=3, sid=91(0x5b - PCIE5), pgd=8568d3003, pud=8568d3003, pmd=7e7a54003, pte=0
[ 635.144143] mc-err: Too many MC errors; throttling prints
[ 635.847308] t19x-arm-smmu 12000000.iommu: Unhandled context fault: smmu0, iova=0x4ffebf000, fsynr=0x220013, cb=3, sid=91(0x5b - PCIE5), pgd=8568d3003, pud=8568d3003, pmd=7e7a54003, pte=0
[ 635.848258] mc-err: vpr base=0:c6000000, size=20, ctrl=3, override:(a01a8340, fcee10c1, 1, 0)
[ 635.848458] mc-err: (255) csw_pcie5w: MC request violates VPR requirements
[ 635.848635] mc-err: status = 0x0ff740e3; addr = 0xffffffff00; hi_adr_reg=008
[ 635.848784] mc-err: secure: yes, access-type: write
[ 635.848899] mc-err: mcerr: unknown intr source intstatus = 0x00000000, intstatus_1 = 0x00000000
[ 636.965821] t19x-arm-smmu 12000000.iommu: Unhandled context fault: smmu0, iova=0x4ffebf000, fsynr=0x220013, cb=3, sid=91(0x5b - PCIE5), pgd=8568d3003, pud=8568d3003, pmd=7e7a54003, pte=0
[ 636.966561] mc-err: vpr base=0:c6000000, size=20, ctrl=3, override:(a01a8340, fcee10c1, 1, 0)
[ 636.966735] mc-err: (255) csw_pcie5w: MC request violates VPR requirements
[ 636.966896] mc-err: status = 0x0ff740e3; addr = 0xffffffff00; hi_adr_reg=008
[ 636.967035] mc-err: secure: yes, access-type: write
[ 636.967147] mc-err: mcerr: unknown intr source intstatus = 0x00000000, intstatus_1 = 0x00000000
[ 637.735384] t19x-arm-smmu 12000000.iommu: Unhandled context fault: smmu0, iova=0x4ffebf000, fsynr=0x220013, cb=3, sid=91(0x5b - PCIE5), pgd=8568d3003, pud=8568d3003, pmd=7e7a54003, pte=0
[ 637.736323] mc-err: Too many MC errors; throttling prints
[ 638.087306] t19x-arm-smmu 12000000.iommu: Unhandled context fault: smmu0, iova=0x4ffebf000, fsynr=0x220013, cb=3, sid=91(0x5b - PCIE5), pgd=8568d3003, pud=8568d3003, pmd=7e7a54003, pte=0
[ 641.251637] t19x-arm-smmu 12000000.iommu: Unhandled context fault: smmu0, iova=0x4ffebf000, fsynr=0x220013, cb=3, sid=91(0x5b - PCIE5), pgd=8568d3003, pud=8568d3003, pmd=7e7a54003, pte=0
[ 641.252289] mc-err: vpr base=0:c6000000, size=20, ctrl=3, override:(a01a8340, fcee10c1, 1, 0)
[ 641.252448] mc-err: (255) csw_pcie5w: MC request violates VPR requirements
[ 641.252604] mc-err: status = 0x0ff740e3; addr = 0xffffffff00; hi_adr_reg=008
[ 641.252733] mc-err: secure: yes, access-type: write
[ 641.252835] mc-err: mcerr: unknown intr source intstatus = 0x00000000, intstatus_1 = 0x00000000
[ 642.023448] t19x-arm-smmu 12000000.iommu: Unhandled context fault: smmu0, iova=0x4ffebf000, fsynr=0x220013, cb=3, sid=91(0x5b - PCIE5), pgd=8568d3003, pud=8568d3003, pmd=7e7a54003, pte=0
[ 642.024446] mc-err: vpr base=0:c6000000, size=20, ctrl=3, override:(a01a8340, fcee10c1, 1, 0)
[ 642.024653] mc-err: (255) csw_pcie5w: MC request violates VPR requirements
[ 642.024826] mc-err: status = 0x0ff740e3; addr = 0xffffffff00; hi_adr_reg=008
[ 642.025042] mc-err: secure: yes, access-type: write
[ 642.025171] mc-err: mcerr: unknown intr source intstatus = 0x00000000, intstatus_1 = 0x00000000
[ 642.375410] t19x-arm-smmu 12000000.iommu: Unhandled context fault: smmu0, iova=0x4ffebf000, fsynr=0x220013, cb=3, sid=91(0x5b - PCIE5), pgd=8568d3003, pud=8568d3003, pmd=7e7a54003, pte=0
[ 642.376305] mc-err: Too many MC errors; throttling prints
[ 644.146305] t19x-arm-smmu 12000000.iommu: Unhandled context fault: smmu0, iova=0x4ffebf000, fsynr=0x220013, cb=3, sid=91(0x5b - PCIE5), pgd=8568d3003, pud=8568d3003, pmd=7e7a54003, pte=0
[ 644.147241] mc-err: vpr base=0:c6000000, size=20, ctrl=3, override:(a01a8340, fcee10c1, 1, 0)
[ 644.147446] mc-err: (255) csw_pcie5w: MC request violates VPR requirements
[ 644.147626] mc-err: status = 0x0ff740e3; addr = 0xffffffff00; hi_adr_reg=008
[ 644.147765] mc-err: secure: yes, access-type: write
[ 644.147903] mc-err: mcerr: unknown intr source intstatus = 0x00000000, intstatus_1 = 0x00000000
[ 649.159195] t19x-arm-smmu 12000000.iommu: Unhandled context fault: smmu0, iova=0x4ffebf000, fsynr=0x220013, cb=3, sid=91(0x5b - PCIE5), pgd=8568d3003, pud=8568d3003, pmd=7e7a54003, pte=0
[ 649.160112] mc-err: vpr base=0:c6000000, size=20, ctrl=3, override:(a01a8340, fcee10c1, 1, 0)
[ 649.160320] mc-err: (255) csw_pcie5w: MC request violates VPR requirements
[ 649.160543] mc-err: status = 0x0ff740e3; addr = 0xffffffff00; hi_adr_reg=008
[ 649.160683] mc-err: secure: yes, access-type: write
[ 649.160821] mc-err: mcerr: unknown intr source intstatus = 0x00000000, intstatus_1 = 0x00000000