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

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On 4/11/2023 5:20 PM, Bartosz Golaszewski wrote:
On Mon, Apr 10, 2023 at 10:11 PM Eric Chanudet <echanude@xxxxxxxxxx> wrote:

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 ]---


Adding Shazad

Eric: This is supposedly gone in the latest meta but I thought you're
already on the most recent release?

Shazad, what version exactly should Eric test this on?

Bart


Hi Bart, We should use r00004.1 to verify this. Adding Parikshit to
confirm on the same.

-Shazad

[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




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