Re: [PATCH v2 5/7] arm64: dts: qcom: sa8775p: add the pcie smmu node

From: Eric Chanudet
Date: Mon Apr 10 2023 - 16:12:40 EST

On Thu, Apr 06, 2023 at 10:07:21PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
>
> Add the PCIe SMMU node for sa8775p platforms.
>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
> ---
> arch/arm64/boot/dts/qcom/sa8775p.dtsi | 74 +++++++++++++++++++++++++++
> 1 file changed, 74 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> index 2343df7e0ea4..9ab630c7d81b 100644
> --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
> @@ -809,6 +809,80 @@ apps_smmu: iommu@15000000 {
> <GIC_SPI 891 IRQ_TYPE_LEVEL_HIGH>;
> };
>
> + pcie_smmu: iommu@15200000 {
> + compatible = "qcom,sa8775p-smmu-500", "qcom,smmu-500", "arm,mmu-500";
> + reg = <0x0 0x15200000 0x0 0x800000>;

Testing on the board, applying on next-20230406:
[ 1.041869] arm-smmu 15200000.iommu: SMMU address space size (0x80000) differs from mapped region size (0x800000)!

In the downstream sources, the size is 0x80000[1].

On reboot, I also get a synchronous abort, but the second line, from the
following output on the serial, could indicate the hypervisor is behind
it:

[ 26.906206] arm-smmu 15200000.iommu: disabling translation
3 33.244434 Injecting instruction/data abort to VM 3, original ESR_EL2 = 0x93800047, fault VA = 0xffff80000a380000, fault IPA = 0x15200000, ELR_EL2 = 0xffffd064f70c9de8
[ 26.942083] Internal error: synchronous external abort: 0000000096000010 [#1] PREEMPT SMP
[ 26.948506] Modules linked in: nvmem_qcom_spmi_sdam qcom_pon spi_geni_qcom nvmem_reboot_mode crct10dif_ce i2c_qcom_geni phy_qcom_qmp_ufs gpucc_sa8775p ufs_qcom socinfo fuse ipv6
[ 26.966702] CPU: 3 PID: 1 Comm: systemd-shutdow Not tainted 6.3.0-rc5-next-20230406-00019-g9d08a3c17f54-dirty #134
[ 26.977315] Hardware name: Qualcomm SA8775P Ride (DT)
[ 26.982505] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 26.989651] pc : arm_smmu_device_shutdown+0x88/0x1d8
[ 26.994773] lr : arm_smmu_device_shutdown+0x70/0x1d8
[ 26.999875] sp : ffff80000805bbf0
[ 27.003283] x29: ffff80000805bbf0 x28: ffff0e69400a0000 x27: 0000000000000000
[ 27.010608] x26: ffffd064f8130f38 x25: 0000000000000001 x24: ffffd064f8eac028
[ 27.017932] x23: ffff0e6940eeb490 x22: ffffd064f8f24f80 x21: ffff0e6940eeb410
[ 27.025254] x20: ffff0e6940808c80 x19: ffff0e6940eeb410 x18: 0000000000000006
[ 27.032579] x17: 0000000000000001 x16: 0000000000000014 x15: ffff80000805b5c0
[ 27.039903] x14: 0000000000000000 x13: ffffd064f8ac19a8 x12: 0000000000000606
[ 27.047226] x11: 0000000000000202 x10: ffffd064f8b199a8 x9 : ffffd064f8ac19a8
[ 27.054549] x8 : 00000000ffffefff x7 : ffffd064f8b199a8 x6 : 80000000fffff000
[ 27.061872] x5 : 000000000000bff4 x4 : 0000000000000000 x3 : 0000000000000000
[ 27.069195] x2 : 0000000000000000 x1 : ffff80000a380000 x0 : 0000000000000001
[ 27.076520] Call trace:
[ 27.079041] arm_smmu_device_shutdown+0x88/0x1d8
[ 27.083787] platform_shutdown+0x24/0x34
[ 27.087825] device_shutdown+0x150/0x258
[ 27.091859] kernel_restart+0x40/0xc0
[ 27.095632] __do_sys_reboot+0x1f0/0x274
[ 27.099664] __arm64_sys_reboot+0x24/0x30
[ 27.103786] invoke_syscall+0x48/0x114
[ 27.107644] el0_svc_common+0x40/0xf4
[ 27.111410] do_el0_svc+0x3c/0x9c
[ 27.114822] el0_svc+0x2c/0x84
[ 27.117969] el0t_64_sync_handler+0xf4/0x120
[ 27.122357] el0t_64_sync+0x190/0x194
[ 27.126126] Code: f9400404 b50008e4 f9400681 52800020 (b9000020)
[ 27.132385] ---[ end trace 0000000000000000 ]---

[1] https://git.codelinaro.org/clo/la/kernel/ark-5.14/-/blob/ES2/arch/arm64/boot/dts/qcom/lemans.dtsi#L3498

> + #iommu-cells = <2>;
> + #global-interrupts = <2>;
> +
> + interrupts = <GIC_SPI 920 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 921 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 925 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 926 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 927 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 928 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 950 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 951 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 952 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 953 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 954 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 955 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 956 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 957 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 958 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 885 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 886 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 887 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 888 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 820 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 822 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 823 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 310 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 446 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 447 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 452 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 840 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 841 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 842 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 843 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 844 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 845 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 846 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 847 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 848 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 849 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 802 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 803 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 804 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 805 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 806 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 807 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 808 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 809 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 810 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 811 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 812 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 813 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 814 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 836 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 837 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 838 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 839 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 854 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 855 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 856 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 790 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 791 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 792 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 793 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 794 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 795 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 796 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 639 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 640 IRQ_TYPE_LEVEL_HIGH>;
> + };
> +
> intc: interrupt-controller@17a00000 {
> compatible = "arm,gic-v3";
> reg = <0x0 0x17a00000 0x0 0x10000>, /* GICD */
> --
> 2.37.2
>

--
Eric Chanudet